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P2P: Add event messages for P2P_CONNECT-fallback-to-GO-Neg
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
1 /*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
5 *
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
8 */
9
10 #include "includes.h"
11
12 #include "common.h"
13 #include "eloop.h"
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
18 #include "p2p/p2p.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
25 #include "eapol_supp/eapol_supp_sm.h"
26 #include "rsn_supp/wpa.h"
27 #include "wpa_supplicant_i.h"
28 #include "driver_i.h"
29 #include "ap.h"
30 #include "config_ssid.h"
31 #include "config.h"
32 #include "notify.h"
33 #include "scan.h"
34 #include "bss.h"
35 #include "offchannel.h"
36 #include "wps_supplicant.h"
37 #include "p2p_supplicant.h"
38 #include "wifi_display.h"
39
40
41 /*
42 * How many times to try to scan to find the GO before giving up on join
43 * request.
44 */
45 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
46
47 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
48
49 #ifndef P2P_MAX_CLIENT_IDLE
50 /*
51 * How many seconds to try to reconnect to the GO when connection in P2P client
52 * role has been lost.
53 */
54 #define P2P_MAX_CLIENT_IDLE 10
55 #endif /* P2P_MAX_CLIENT_IDLE */
56
57 #ifndef P2P_MAX_INITIAL_CONN_WAIT
58 /*
59 * How many seconds to wait for initial 4-way handshake to get completed after
60 * WPS provisioning step or after the re-invocation of a persistent group on a
61 * P2P Client.
62 */
63 #define P2P_MAX_INITIAL_CONN_WAIT 10
64 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
65
66 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
67 /*
68 * How many seconds to wait for initial 4-way handshake to get completed after
69 * WPS provisioning step on the GO. This controls the extra time the P2P
70 * operation is considered to be in progress (e.g., to delay other scans) after
71 * WPS provisioning has been completed on the GO during group formation.
72 */
73 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
74 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
75
76 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
77 /*
78 * How many seconds to wait for initial 4-way handshake to get completed after
79 * re-invocation of a persistent group on the GO when the client is expected
80 * to connect automatically (no user interaction).
81 */
82 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
83 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
84
85 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
86
87 enum p2p_group_removal_reason {
88 P2P_GROUP_REMOVAL_UNKNOWN,
89 P2P_GROUP_REMOVAL_SILENT,
90 P2P_GROUP_REMOVAL_FORMATION_FAILED,
91 P2P_GROUP_REMOVAL_REQUESTED,
92 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
93 P2P_GROUP_REMOVAL_UNAVAILABLE,
94 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
95 P2P_GROUP_REMOVAL_PSK_FAILURE,
96 P2P_GROUP_REMOVAL_FREQ_CONFLICT
97 };
98
99
100 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
101 static struct wpa_supplicant *
102 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
103 int go);
104 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
105 const u8 *ssid, size_t ssid_len);
106 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
107 const u8 *ssid, size_t ssid_len);
108 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
109 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
110 const u8 *dev_addr, enum p2p_wps_method wps_method,
111 int auto_join, int freq,
112 const u8 *ssid, size_t ssid_len);
113 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
114 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
115 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
116 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
117 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
118 void *timeout_ctx);
119 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
120 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
121 int group_added);
122 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
123 static void wpas_stop_listen(void *ctx);
124 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
125 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
126 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
127 enum wpa_driver_if_type type);
128
129
130 /*
131 * Get the number of concurrent channels that the HW can operate, but that are
132 * currently not in use by any of the wpa_supplicant interfaces.
133 */
134 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
135 {
136 int *freqs;
137 int num, unused;
138
139 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
140 if (!freqs)
141 return -1;
142
143 num = get_shared_radio_freqs(wpa_s, freqs,
144 wpa_s->num_multichan_concurrent);
145 os_free(freqs);
146
147 unused = wpa_s->num_multichan_concurrent - num;
148 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
149 return unused;
150 }
151
152
153 /*
154 * Get the frequencies that are currently in use by one or more of the virtual
155 * interfaces, and that are also valid for P2P operation.
156 */
157 static unsigned int
158 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
159 struct wpa_used_freq_data *p2p_freqs,
160 unsigned int len)
161 {
162 struct wpa_used_freq_data *freqs;
163 unsigned int num, i, j;
164
165 freqs = os_calloc(wpa_s->num_multichan_concurrent,
166 sizeof(struct wpa_used_freq_data));
167 if (!freqs)
168 return 0;
169
170 num = get_shared_radio_freqs_data(wpa_s, freqs,
171 wpa_s->num_multichan_concurrent);
172
173 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
174
175 for (i = 0, j = 0; i < num && j < len; i++) {
176 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
177 p2p_freqs[j++] = freqs[i];
178 }
179
180 os_free(freqs);
181
182 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
183
184 return j;
185 }
186
187
188 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
189 int freq)
190 {
191 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
192 return;
193 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
194 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
195 wpas_p2p_num_unused_channels(wpa_s) > 0) {
196 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
197 freq);
198 freq = 0;
199 }
200 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
201 }
202
203
204 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
205 struct wpa_scan_results *scan_res)
206 {
207 size_t i;
208
209 if (wpa_s->p2p_scan_work) {
210 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
211 wpa_s->p2p_scan_work = NULL;
212 radio_work_done(work);
213 }
214
215 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
216 return;
217
218 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
219 (int) scan_res->num);
220
221 for (i = 0; i < scan_res->num; i++) {
222 struct wpa_scan_res *bss = scan_res->res[i];
223 struct os_reltime time_tmp_age, entry_ts;
224 const u8 *ies;
225 size_t ies_len;
226
227 time_tmp_age.sec = bss->age / 1000;
228 time_tmp_age.usec = (bss->age % 1000) * 1000;
229 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
230
231 ies = (const u8 *) (bss + 1);
232 ies_len = bss->ie_len;
233 if (bss->beacon_ie_len > 0 &&
234 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
235 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
236 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
237 MACSTR, MAC2STR(bss->bssid));
238 ies = ies + ies_len;
239 ies_len = bss->beacon_ie_len;
240 }
241
242
243 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
244 bss->freq, &entry_ts, bss->level,
245 ies, ies_len) > 0)
246 break;
247 }
248
249 p2p_scan_res_handled(wpa_s->global->p2p);
250 }
251
252
253 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
254 {
255 struct wpa_supplicant *wpa_s = work->wpa_s;
256 struct wpa_driver_scan_params *params = work->ctx;
257 int ret;
258
259 if (deinit) {
260 if (!work->started) {
261 wpa_scan_free_params(params);
262 return;
263 }
264
265 wpa_s->p2p_scan_work = NULL;
266 return;
267 }
268
269 ret = wpa_drv_scan(wpa_s, params);
270 wpa_scan_free_params(params);
271 work->ctx = NULL;
272 if (ret) {
273 radio_work_done(work);
274 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
275 return;
276 }
277
278 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
279 os_get_reltime(&wpa_s->scan_trigger_time);
280 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
281 wpa_s->own_scan_requested = 1;
282 wpa_s->p2p_scan_work = work;
283 }
284
285
286 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
287 int freq)
288 {
289 if (wpa_s->global->p2p_24ghz_social_channels &&
290 (freq == 2412 || freq == 2437 || freq == 2462)) {
291 /*
292 * Search all social channels regardless of whether these have
293 * been disabled for P2P operating channel use to avoid missing
294 * peers.
295 */
296 return 1;
297 }
298 return p2p_supported_freq(wpa_s->global->p2p, freq);
299 }
300
301
302 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
303 unsigned int num_req_dev_types,
304 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
305 {
306 struct wpa_supplicant *wpa_s = ctx;
307 struct wpa_driver_scan_params *params = NULL;
308 struct wpabuf *wps_ie, *ies;
309 unsigned int num_channels = 0;
310 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
311 size_t ielen;
312 u8 *n, i;
313
314 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
315 return -1;
316
317 if (wpa_s->p2p_scan_work) {
318 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
319 return -1;
320 }
321
322 params = os_zalloc(sizeof(*params));
323 if (params == NULL)
324 return -1;
325
326 /* P2P Wildcard SSID */
327 params->num_ssids = 1;
328 n = os_malloc(P2P_WILDCARD_SSID_LEN);
329 if (n == NULL)
330 goto fail;
331 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
332 params->ssids[0].ssid = n;
333 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
334
335 wpa_s->wps->dev.p2p = 1;
336 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
337 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
338 num_req_dev_types, req_dev_types);
339 if (wps_ie == NULL)
340 goto fail;
341
342 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
343 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
344 if (ies == NULL) {
345 wpabuf_free(wps_ie);
346 goto fail;
347 }
348 wpabuf_put_buf(ies, wps_ie);
349 wpabuf_free(wps_ie);
350
351 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
352
353 params->p2p_probe = 1;
354 n = os_malloc(wpabuf_len(ies));
355 if (n == NULL) {
356 wpabuf_free(ies);
357 goto fail;
358 }
359 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
360 params->extra_ies = n;
361 params->extra_ies_len = wpabuf_len(ies);
362 wpabuf_free(ies);
363
364 switch (type) {
365 case P2P_SCAN_SOCIAL:
366 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
367 sizeof(int));
368 if (params->freqs == NULL)
369 goto fail;
370 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
371 if (wpas_p2p_search_social_channel(
372 wpa_s, social_channels_freq[i]))
373 params->freqs[num_channels++] =
374 social_channels_freq[i];
375 }
376 params->freqs[num_channels++] = 0;
377 break;
378 case P2P_SCAN_FULL:
379 break;
380 case P2P_SCAN_SOCIAL_PLUS_ONE:
381 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
382 sizeof(int));
383 if (params->freqs == NULL)
384 goto fail;
385 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
386 if (wpas_p2p_search_social_channel(
387 wpa_s, social_channels_freq[i]))
388 params->freqs[num_channels++] =
389 social_channels_freq[i];
390 }
391 if (p2p_supported_freq(wpa_s->global->p2p, freq))
392 params->freqs[num_channels++] = freq;
393 params->freqs[num_channels++] = 0;
394 break;
395 }
396
397 radio_remove_works(wpa_s, "p2p-scan", 0);
398 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
399 params) < 0)
400 goto fail;
401 return 0;
402
403 fail:
404 wpa_scan_free_params(params);
405 return -1;
406 }
407
408
409 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
410 {
411 switch (p2p_group_interface) {
412 case P2P_GROUP_INTERFACE_PENDING:
413 return WPA_IF_P2P_GROUP;
414 case P2P_GROUP_INTERFACE_GO:
415 return WPA_IF_P2P_GO;
416 case P2P_GROUP_INTERFACE_CLIENT:
417 return WPA_IF_P2P_CLIENT;
418 }
419
420 return WPA_IF_P2P_GROUP;
421 }
422
423
424 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
425 const u8 *ssid,
426 size_t ssid_len, int *go)
427 {
428 struct wpa_ssid *s;
429
430 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
431 for (s = wpa_s->conf->ssid; s; s = s->next) {
432 if (s->disabled != 0 || !s->p2p_group ||
433 s->ssid_len != ssid_len ||
434 os_memcmp(ssid, s->ssid, ssid_len) != 0)
435 continue;
436 if (s->mode == WPAS_MODE_P2P_GO &&
437 s != wpa_s->current_ssid)
438 continue;
439 if (go)
440 *go = s->mode == WPAS_MODE_P2P_GO;
441 return wpa_s;
442 }
443 }
444
445 return NULL;
446 }
447
448
449 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
450 {
451 struct wpa_supplicant *wpa_s = eloop_ctx;
452 wpa_printf(MSG_DEBUG,
453 "P2P: Complete previously requested removal of %s",
454 wpa_s->ifname);
455 wpas_p2p_disconnect(wpa_s);
456 }
457
458
459 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
460 struct wpa_supplicant *calling_wpa_s)
461 {
462 if (calling_wpa_s == wpa_s && wpa_s &&
463 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
464 /*
465 * The calling wpa_s instance is going to be removed. Do that
466 * from an eloop callback to keep the instance available until
467 * the caller has returned. This my be needed, e.g., to provide
468 * control interface responses on the per-interface socket.
469 */
470 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
471 wpa_s, NULL) < 0)
472 return -1;
473 return 0;
474 }
475
476 return wpas_p2p_disconnect(wpa_s);
477 }
478
479
480 /* Determine total number of clients in active groups where we are the GO */
481 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
482 {
483 unsigned int count = 0;
484 struct wpa_ssid *s;
485
486 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
487 for (s = wpa_s->conf->ssid; s; s = s->next) {
488 wpa_printf(MSG_DEBUG,
489 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
490 wpa_s, s, s->disabled, s->p2p_group,
491 s->mode);
492 if (!s->disabled && s->p2p_group &&
493 s->mode == WPAS_MODE_P2P_GO) {
494 count += p2p_get_group_num_members(
495 wpa_s->p2p_group);
496 }
497 }
498 }
499
500 return count;
501 }
502
503
504 /* Find an interface for a P2P group where we are the GO */
505 static struct wpa_supplicant *
506 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
507 {
508 struct wpa_supplicant *save = NULL;
509 struct wpa_ssid *s;
510
511 if (!wpa_s)
512 return NULL;
513
514 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
515 for (s = wpa_s->conf->ssid; s; s = s->next) {
516 if (s->disabled || !s->p2p_group ||
517 s->mode != WPAS_MODE_P2P_GO)
518 continue;
519
520 /* Prefer a group with connected clients */
521 if (p2p_get_group_num_members(wpa_s->p2p_group))
522 return wpa_s;
523 save = wpa_s;
524 }
525 }
526
527 /* No group with connected clients, so pick the one without (if any) */
528 return save;
529 }
530
531
532 /* Find an active P2P group where we are the GO */
533 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
534 u8 *bssid)
535 {
536 struct wpa_ssid *s, *empty = NULL;
537
538 if (!wpa_s)
539 return 0;
540
541 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
542 for (s = wpa_s->conf->ssid; s; s = s->next) {
543 if (s->disabled || !s->p2p_group ||
544 s->mode != WPAS_MODE_P2P_GO)
545 continue;
546
547 os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
548 if (p2p_get_group_num_members(wpa_s->p2p_group))
549 return s;
550 empty = s;
551 }
552 }
553
554 return empty;
555 }
556
557
558 /* Find a persistent group where we are the GO */
559 static struct wpa_ssid *
560 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
561 {
562 struct wpa_ssid *s;
563
564 for (s = wpa_s->conf->ssid; s; s = s->next) {
565 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
566 return s;
567 }
568
569 return NULL;
570 }
571
572
573 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
574 {
575 struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
576 struct wpa_ssid *s;
577 u8 conncap = P2PS_SETUP_NONE;
578 unsigned int owned_members = 0;
579 unsigned int owner = 0;
580 unsigned int client = 0;
581 struct wpa_supplicant *go_wpa_s;
582 struct wpa_ssid *persistent_go;
583 int p2p_no_group_iface;
584
585 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
586
587 /*
588 * For non-concurrent capable devices:
589 * If persistent_go, then no new.
590 * If GO, then no client.
591 * If client, then no GO.
592 */
593 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
594 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
595 p2p_no_group_iface = wpa_s->conf->p2p_no_group_iface;
596
597 wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
598 go_wpa_s, persistent_go);
599
600 for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
601 tmp_wpa_s = tmp_wpa_s->next) {
602 for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
603 wpa_printf(MSG_DEBUG,
604 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
605 tmp_wpa_s, s, s->disabled,
606 s->p2p_group, s->mode);
607 if (!s->disabled && s->p2p_group) {
608 if (s->mode == WPAS_MODE_P2P_GO) {
609 owned_members +=
610 p2p_get_group_num_members(
611 tmp_wpa_s->p2p_group);
612 owner++;
613 } else
614 client++;
615 }
616 }
617 }
618
619 /* If not concurrent, restrict our choices */
620 if (p2p_no_group_iface) {
621 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
622
623 if (client)
624 return P2PS_SETUP_NONE;
625
626 if (go_wpa_s) {
627 if (role == P2PS_SETUP_CLIENT ||
628 incoming == P2PS_SETUP_GROUP_OWNER ||
629 p2p_client_limit_reached(go_wpa_s->p2p_group))
630 return P2PS_SETUP_NONE;
631
632 return P2PS_SETUP_GROUP_OWNER;
633 }
634
635 if (persistent_go) {
636 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
637 if (!incoming)
638 return P2PS_SETUP_GROUP_OWNER |
639 P2PS_SETUP_CLIENT;
640 if (incoming == P2PS_SETUP_NEW) {
641 u8 r;
642
643 if (os_get_random(&r, sizeof(r)) < 0 ||
644 (r & 1))
645 return P2PS_SETUP_CLIENT;
646 return P2PS_SETUP_GROUP_OWNER;
647 }
648 }
649 }
650 }
651
652 /* If a required role has been specified, handle it here */
653 if (role && role != P2PS_SETUP_NEW) {
654 switch (incoming) {
655 case P2PS_SETUP_NONE:
656 case P2PS_SETUP_NEW:
657 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
658 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
659 conncap = role;
660 goto grp_owner;
661
662 case P2PS_SETUP_GROUP_OWNER:
663 /*
664 * Must be a complimentary role - cannot be a client to
665 * more than one peer.
666 */
667 if (incoming == role || client)
668 return P2PS_SETUP_NONE;
669
670 return P2PS_SETUP_CLIENT;
671
672 case P2PS_SETUP_CLIENT:
673 /* Must be a complimentary role */
674 if (incoming != role) {
675 conncap = P2PS_SETUP_GROUP_OWNER;
676 goto grp_owner;
677 }
678
679 default:
680 return P2PS_SETUP_NONE;
681 }
682 }
683
684 /*
685 * For now, we only will support ownership of one group, and being a
686 * client of one group. Therefore, if we have either an existing GO
687 * group, or an existing client group, we will not do a new GO
688 * negotiation, but rather try to re-use the existing groups.
689 */
690 switch (incoming) {
691 case P2PS_SETUP_NONE:
692 case P2PS_SETUP_NEW:
693 if (client)
694 conncap = P2PS_SETUP_GROUP_OWNER;
695 else if (!owned_members)
696 conncap = P2PS_SETUP_NEW;
697 else if (incoming == P2PS_SETUP_NONE)
698 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
699 else
700 conncap = P2PS_SETUP_CLIENT;
701 break;
702
703 case P2PS_SETUP_CLIENT:
704 conncap = P2PS_SETUP_GROUP_OWNER;
705 break;
706
707 case P2PS_SETUP_GROUP_OWNER:
708 if (!client)
709 conncap = P2PS_SETUP_CLIENT;
710 break;
711
712 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
713 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
714 if (client)
715 conncap = P2PS_SETUP_GROUP_OWNER;
716 else {
717 u8 r;
718
719 if (os_get_random(&r, sizeof(r)) < 0 ||
720 (r & 1))
721 conncap = P2PS_SETUP_CLIENT;
722 else
723 conncap = P2PS_SETUP_GROUP_OWNER;
724 }
725 break;
726
727 default:
728 return P2PS_SETUP_NONE;
729 }
730
731 grp_owner:
732 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
733 (!incoming && (conncap & P2PS_SETUP_NEW))) {
734 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
735 conncap &= ~P2PS_SETUP_GROUP_OWNER;
736 wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
737 owner, owned_members, conncap);
738
739 s = wpas_p2p_get_persistent_go(wpa_s);
740
741 if (!s && !owner && p2p_no_group_iface) {
742 p2p_set_intended_addr(wpa_s->global->p2p,
743 wpa_s->own_addr);
744 } else if (!s && !owner) {
745 if (wpas_p2p_add_group_interface(wpa_s,
746 WPA_IF_P2P_GO) < 0) {
747 wpa_printf(MSG_ERROR,
748 "P2P: Failed to allocate a new interface for the group");
749 return P2PS_SETUP_NONE;
750 }
751 wpa_s->global->pending_group_iface_for_p2ps = 1;
752 p2p_set_intended_addr(wpa_s->global->p2p,
753 wpa_s->pending_interface_addr);
754 }
755 }
756
757 return conncap;
758 }
759
760
761 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
762 enum p2p_group_removal_reason removal_reason)
763 {
764 struct wpa_ssid *ssid;
765 char *gtype;
766 const char *reason;
767
768 ssid = wpa_s->current_ssid;
769 if (ssid == NULL) {
770 /*
771 * The current SSID was not known, but there may still be a
772 * pending P2P group interface waiting for provisioning or a
773 * P2P group that is trying to reconnect.
774 */
775 ssid = wpa_s->conf->ssid;
776 while (ssid) {
777 if (ssid->p2p_group && ssid->disabled != 2)
778 break;
779 ssid = ssid->next;
780 }
781 if (ssid == NULL &&
782 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
783 {
784 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
785 "not found");
786 return -1;
787 }
788 }
789 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
790 gtype = "GO";
791 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
792 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
793 wpa_s->reassociate = 0;
794 wpa_s->disconnected = 1;
795 gtype = "client";
796 } else
797 gtype = "GO";
798
799 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
800 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
801
802 if (os_strcmp(gtype, "client") == 0) {
803 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
804 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
805 wpa_s, NULL)) {
806 wpa_printf(MSG_DEBUG,
807 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
808 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
809 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
810 wpa_s, NULL);
811 }
812 }
813
814 if (wpa_s->cross_connect_in_use) {
815 wpa_s->cross_connect_in_use = 0;
816 wpa_msg_global(wpa_s->parent, MSG_INFO,
817 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
818 wpa_s->ifname, wpa_s->cross_connect_uplink);
819 }
820 switch (removal_reason) {
821 case P2P_GROUP_REMOVAL_REQUESTED:
822 reason = " reason=REQUESTED";
823 break;
824 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
825 reason = " reason=FORMATION_FAILED";
826 break;
827 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
828 reason = " reason=IDLE";
829 break;
830 case P2P_GROUP_REMOVAL_UNAVAILABLE:
831 reason = " reason=UNAVAILABLE";
832 break;
833 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
834 reason = " reason=GO_ENDING_SESSION";
835 break;
836 case P2P_GROUP_REMOVAL_PSK_FAILURE:
837 reason = " reason=PSK_FAILURE";
838 break;
839 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
840 reason = " reason=FREQ_CONFLICT";
841 break;
842 default:
843 reason = "";
844 break;
845 }
846 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
847 wpa_msg_global(wpa_s->parent, MSG_INFO,
848 P2P_EVENT_GROUP_REMOVED "%s %s%s",
849 wpa_s->ifname, gtype, reason);
850 }
851
852 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
853 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
854 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
855 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
856 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
857 wpa_s->parent, NULL) > 0) {
858 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
859 "timeout");
860 wpa_s->p2p_in_provisioning = 0;
861 }
862
863 wpa_s->p2p_in_invitation = 0;
864
865 /*
866 * Make sure wait for the first client does not remain active after the
867 * group has been removed.
868 */
869 wpa_s->global->p2p_go_wait_client.sec = 0;
870
871 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
872 struct wpa_global *global;
873 char *ifname;
874 enum wpa_driver_if_type type;
875 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
876 wpa_s->ifname);
877 global = wpa_s->global;
878 ifname = os_strdup(wpa_s->ifname);
879 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
880 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
881 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
882 wpa_s = global->ifaces;
883 if (wpa_s && ifname)
884 wpa_drv_if_remove(wpa_s, type, ifname);
885 os_free(ifname);
886 return 1;
887 }
888
889 if (!wpa_s->p2p_go_group_formation_completed) {
890 wpa_s->global->p2p_group_formation = NULL;
891 wpa_s->p2p_in_provisioning = 0;
892 }
893
894 wpa_s->show_group_started = 0;
895 os_free(wpa_s->go_params);
896 wpa_s->go_params = NULL;
897
898 os_free(wpa_s->p2p_group_common_freqs);
899 wpa_s->p2p_group_common_freqs = NULL;
900 wpa_s->p2p_group_common_freqs_num = 0;
901
902 wpa_s->waiting_presence_resp = 0;
903
904 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
905 if (ssid && (ssid->p2p_group ||
906 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
907 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
908 int id = ssid->id;
909 if (ssid == wpa_s->current_ssid) {
910 wpa_sm_set_config(wpa_s->wpa, NULL);
911 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
912 wpa_s->current_ssid = NULL;
913 }
914 /*
915 * Networks objects created during any P2P activities are not
916 * exposed out as they might/will confuse certain non-P2P aware
917 * applications since these network objects won't behave like
918 * regular ones.
919 *
920 * Likewise, we don't send out network removed signals for such
921 * network objects.
922 */
923 wpa_config_remove_network(wpa_s->conf, id);
924 wpa_supplicant_clear_status(wpa_s);
925 wpa_supplicant_cancel_sched_scan(wpa_s);
926 } else {
927 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
928 "found");
929 }
930 if (wpa_s->ap_iface)
931 wpa_supplicant_ap_deinit(wpa_s);
932 else
933 wpa_drv_deinit_p2p_cli(wpa_s);
934
935 return 0;
936 }
937
938
939 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
940 u8 *go_dev_addr,
941 const u8 *ssid, size_t ssid_len)
942 {
943 struct wpa_bss *bss;
944 const u8 *bssid;
945 struct wpabuf *p2p;
946 u8 group_capab;
947 const u8 *addr;
948
949 if (wpa_s->go_params)
950 bssid = wpa_s->go_params->peer_interface_addr;
951 else
952 bssid = wpa_s->bssid;
953
954 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
955 if (bss == NULL && wpa_s->go_params &&
956 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
957 bss = wpa_bss_get_p2p_dev_addr(
958 wpa_s, wpa_s->go_params->peer_device_addr);
959 if (bss == NULL) {
960 u8 iface_addr[ETH_ALEN];
961 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
962 iface_addr) == 0)
963 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
964 }
965 if (bss == NULL) {
966 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
967 "group is persistent - BSS " MACSTR " not found",
968 MAC2STR(bssid));
969 return 0;
970 }
971
972 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
973 if (p2p == NULL)
974 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
975 P2P_IE_VENDOR_TYPE);
976 if (p2p == NULL) {
977 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
978 "group is persistent - BSS " MACSTR
979 " did not include P2P IE", MAC2STR(bssid));
980 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
981 (u8 *) (bss + 1), bss->ie_len);
982 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
983 ((u8 *) bss + 1) + bss->ie_len,
984 bss->beacon_ie_len);
985 return 0;
986 }
987
988 group_capab = p2p_get_group_capab(p2p);
989 addr = p2p_get_go_dev_addr(p2p);
990 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
991 "group_capab=0x%x", group_capab);
992 if (addr) {
993 os_memcpy(go_dev_addr, addr, ETH_ALEN);
994 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
995 MAC2STR(addr));
996 } else
997 os_memset(go_dev_addr, 0, ETH_ALEN);
998 wpabuf_free(p2p);
999
1000 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1001 "go_dev_addr=" MACSTR,
1002 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1003
1004 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1005 }
1006
1007
1008 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1009 struct wpa_ssid *ssid,
1010 const u8 *go_dev_addr)
1011 {
1012 struct wpa_ssid *s;
1013 int changed = 0;
1014
1015 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1016 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1017 for (s = wpa_s->conf->ssid; s; s = s->next) {
1018 if (s->disabled == 2 &&
1019 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1020 s->ssid_len == ssid->ssid_len &&
1021 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1022 break;
1023 }
1024
1025 if (s) {
1026 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1027 "entry");
1028 if (ssid->passphrase && !s->passphrase)
1029 changed = 1;
1030 else if (ssid->passphrase && s->passphrase &&
1031 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1032 changed = 1;
1033 } else {
1034 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1035 "entry");
1036 changed = 1;
1037 s = wpa_config_add_network(wpa_s->conf);
1038 if (s == NULL)
1039 return -1;
1040
1041 /*
1042 * Instead of network_added we emit persistent_group_added
1043 * notification. Also to keep the defense checks in
1044 * persistent_group obj registration method, we set the
1045 * relevant flags in s to designate it as a persistent group.
1046 */
1047 s->p2p_group = 1;
1048 s->p2p_persistent_group = 1;
1049 wpas_notify_persistent_group_added(wpa_s, s);
1050 wpa_config_set_network_defaults(s);
1051 }
1052
1053 s->p2p_group = 1;
1054 s->p2p_persistent_group = 1;
1055 s->disabled = 2;
1056 s->bssid_set = 1;
1057 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1058 s->mode = ssid->mode;
1059 s->auth_alg = WPA_AUTH_ALG_OPEN;
1060 s->key_mgmt = WPA_KEY_MGMT_PSK;
1061 s->proto = WPA_PROTO_RSN;
1062 s->pairwise_cipher = WPA_CIPHER_CCMP;
1063 s->export_keys = 1;
1064 if (ssid->passphrase) {
1065 os_free(s->passphrase);
1066 s->passphrase = os_strdup(ssid->passphrase);
1067 }
1068 if (ssid->psk_set) {
1069 s->psk_set = 1;
1070 os_memcpy(s->psk, ssid->psk, 32);
1071 }
1072 if (s->passphrase && !s->psk_set)
1073 wpa_config_update_psk(s);
1074 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1075 os_free(s->ssid);
1076 s->ssid = os_malloc(ssid->ssid_len);
1077 }
1078 if (s->ssid) {
1079 s->ssid_len = ssid->ssid_len;
1080 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1081 }
1082 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1083 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1084 wpa_s->global->add_psk = NULL;
1085 changed = 1;
1086 }
1087
1088 if (changed && wpa_s->conf->update_config &&
1089 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1090 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1091 }
1092
1093 return s->id;
1094 }
1095
1096
1097 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1098 const u8 *addr)
1099 {
1100 struct wpa_ssid *ssid, *s;
1101 u8 *n;
1102 size_t i;
1103 int found = 0;
1104
1105 ssid = wpa_s->current_ssid;
1106 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1107 !ssid->p2p_persistent_group)
1108 return;
1109
1110 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
1111 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1112 continue;
1113
1114 if (s->ssid_len == ssid->ssid_len &&
1115 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1116 break;
1117 }
1118
1119 if (s == NULL)
1120 return;
1121
1122 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1123 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1124 ETH_ALEN) != 0)
1125 continue;
1126
1127 if (i == s->num_p2p_clients - 1)
1128 return; /* already the most recent entry */
1129
1130 /* move the entry to mark it most recent */
1131 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1132 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1133 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1134 os_memcpy(s->p2p_client_list +
1135 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1136 ETH_ALEN);
1137 os_memset(s->p2p_client_list +
1138 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1139 0xff, ETH_ALEN);
1140 found = 1;
1141 break;
1142 }
1143
1144 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1145 n = os_realloc_array(s->p2p_client_list,
1146 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1147 if (n == NULL)
1148 return;
1149 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1150 ETH_ALEN);
1151 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1152 0xff, ETH_ALEN);
1153 s->p2p_client_list = n;
1154 s->num_p2p_clients++;
1155 } else if (!found && s->p2p_client_list) {
1156 /* Not enough room for an additional entry - drop the oldest
1157 * entry */
1158 os_memmove(s->p2p_client_list,
1159 s->p2p_client_list + 2 * ETH_ALEN,
1160 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1161 os_memcpy(s->p2p_client_list +
1162 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1163 addr, ETH_ALEN);
1164 os_memset(s->p2p_client_list +
1165 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1166 0xff, ETH_ALEN);
1167 }
1168
1169 if (wpa_s->parent->conf->update_config &&
1170 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1171 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1172 }
1173
1174
1175 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1176 int go, struct wpa_ssid *ssid, int freq,
1177 const u8 *psk, const char *passphrase,
1178 const u8 *go_dev_addr, int persistent,
1179 const char *extra)
1180 {
1181 const char *ssid_txt;
1182 char psk_txt[65];
1183
1184 if (psk)
1185 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1186 else
1187 psk_txt[0] = '\0';
1188
1189 if (ssid)
1190 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1191 else
1192 ssid_txt = "";
1193
1194 if (passphrase && passphrase[0] == '\0')
1195 passphrase = NULL;
1196
1197 /*
1198 * Include PSK/passphrase only in the control interface message and
1199 * leave it out from the debug log entry.
1200 */
1201 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1202 P2P_EVENT_GROUP_STARTED
1203 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1204 MACSTR "%s%s",
1205 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1206 psk ? " psk=" : "", psk_txt,
1207 passphrase ? " passphrase=\"" : "",
1208 passphrase ? passphrase : "",
1209 passphrase ? "\"" : "",
1210 MAC2STR(go_dev_addr),
1211 persistent ? " [PERSISTENT]" : "", extra);
1212 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1213 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1214 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1215 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1216 extra);
1217 }
1218
1219
1220 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1221 int success)
1222 {
1223 struct wpa_ssid *ssid;
1224 int client;
1225 int persistent;
1226 u8 go_dev_addr[ETH_ALEN];
1227 int network_id = -1;
1228
1229 /*
1230 * This callback is likely called for the main interface. Update wpa_s
1231 * to use the group interface if a new interface was created for the
1232 * group.
1233 */
1234 if (wpa_s->global->p2p_group_formation)
1235 wpa_s = wpa_s->global->p2p_group_formation;
1236 if (wpa_s->p2p_go_group_formation_completed) {
1237 wpa_s->global->p2p_group_formation = NULL;
1238 wpa_s->p2p_in_provisioning = 0;
1239 }
1240 wpa_s->p2p_in_invitation = 0;
1241 wpa_s->group_formation_reported = 1;
1242
1243 if (!success) {
1244 wpa_msg_global(wpa_s->parent, MSG_INFO,
1245 P2P_EVENT_GROUP_FORMATION_FAILURE);
1246 wpas_p2p_group_delete(wpa_s,
1247 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1248 return;
1249 }
1250
1251 wpa_msg_global(wpa_s->parent, MSG_INFO,
1252 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1253
1254 ssid = wpa_s->current_ssid;
1255 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1256 ssid->mode = WPAS_MODE_P2P_GO;
1257 p2p_group_notif_formation_done(wpa_s->p2p_group);
1258 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1259 }
1260
1261 persistent = 0;
1262 if (ssid) {
1263 client = ssid->mode == WPAS_MODE_INFRA;
1264 if (ssid->mode == WPAS_MODE_P2P_GO) {
1265 persistent = ssid->p2p_persistent_group;
1266 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1267 ETH_ALEN);
1268 } else
1269 persistent = wpas_p2p_persistent_group(wpa_s,
1270 go_dev_addr,
1271 ssid->ssid,
1272 ssid->ssid_len);
1273 } else {
1274 client = wpa_s->p2p_group_interface ==
1275 P2P_GROUP_INTERFACE_CLIENT;
1276 os_memset(go_dev_addr, 0, ETH_ALEN);
1277 }
1278
1279 wpa_s->show_group_started = 0;
1280 if (client) {
1281 /*
1282 * Indicate event only after successfully completed 4-way
1283 * handshake, i.e., when the interface is ready for data
1284 * packets.
1285 */
1286 wpa_s->show_group_started = 1;
1287 } else {
1288 wpas_p2p_group_started(wpa_s, 1, ssid,
1289 ssid ? ssid->frequency : 0,
1290 ssid && ssid->passphrase == NULL &&
1291 ssid->psk_set ? ssid->psk : NULL,
1292 ssid ? ssid->passphrase : NULL,
1293 go_dev_addr, persistent, "");
1294 wpas_p2p_cross_connect_setup(wpa_s);
1295 wpas_p2p_set_group_idle_timeout(wpa_s);
1296 }
1297
1298 if (persistent)
1299 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1300 ssid, go_dev_addr);
1301 else {
1302 os_free(wpa_s->global->add_psk);
1303 wpa_s->global->add_psk = NULL;
1304 }
1305 if (network_id < 0 && ssid)
1306 network_id = ssid->id;
1307 if (!client) {
1308 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1309 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1310 }
1311 }
1312
1313
1314 struct send_action_work {
1315 unsigned int freq;
1316 u8 dst[ETH_ALEN];
1317 u8 src[ETH_ALEN];
1318 u8 bssid[ETH_ALEN];
1319 size_t len;
1320 unsigned int wait_time;
1321 u8 buf[0];
1322 };
1323
1324
1325 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1326 void *timeout_ctx)
1327 {
1328 struct wpa_supplicant *wpa_s = eloop_ctx;
1329
1330 if (!wpa_s->p2p_send_action_work)
1331 return;
1332
1333 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1334 os_free(wpa_s->p2p_send_action_work->ctx);
1335 radio_work_done(wpa_s->p2p_send_action_work);
1336 wpa_s->p2p_send_action_work = NULL;
1337 }
1338
1339
1340 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1341 {
1342 if (wpa_s->p2p_send_action_work) {
1343 struct send_action_work *awork;
1344 awork = wpa_s->p2p_send_action_work->ctx;
1345 if (awork->wait_time == 0) {
1346 os_free(awork);
1347 radio_work_done(wpa_s->p2p_send_action_work);
1348 wpa_s->p2p_send_action_work = NULL;
1349 } else {
1350 /*
1351 * In theory, this should not be needed, but number of
1352 * places in the P2P code is still using non-zero wait
1353 * time for the last Action frame in the sequence and
1354 * some of these do not call send_action_done().
1355 */
1356 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1357 wpa_s, NULL);
1358 eloop_register_timeout(
1359 0, awork->wait_time * 1000,
1360 wpas_p2p_send_action_work_timeout,
1361 wpa_s, NULL);
1362 }
1363 }
1364 }
1365
1366
1367 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1368 unsigned int freq,
1369 const u8 *dst, const u8 *src,
1370 const u8 *bssid,
1371 const u8 *data, size_t data_len,
1372 enum offchannel_send_action_result
1373 result)
1374 {
1375 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1376
1377 wpas_p2p_action_tx_clear(wpa_s);
1378
1379 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1380 return;
1381
1382 switch (result) {
1383 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1384 res = P2P_SEND_ACTION_SUCCESS;
1385 break;
1386 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1387 res = P2P_SEND_ACTION_NO_ACK;
1388 break;
1389 case OFFCHANNEL_SEND_ACTION_FAILED:
1390 res = P2P_SEND_ACTION_FAILED;
1391 break;
1392 }
1393
1394 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1395
1396 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1397 wpa_s->pending_pd_before_join &&
1398 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1399 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1400 wpa_s->p2p_fallback_to_go_neg) {
1401 wpa_s->pending_pd_before_join = 0;
1402 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1403 "during p2p_connect-auto");
1404 wpa_msg_global(wpa_s->parent, MSG_INFO,
1405 P2P_EVENT_FALLBACK_TO_GO_NEG
1406 "reason=no-ACK-to-PD-Req");
1407 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1408 return;
1409 }
1410 }
1411
1412
1413 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1414 {
1415 struct wpa_supplicant *wpa_s = work->wpa_s;
1416 struct send_action_work *awork = work->ctx;
1417
1418 if (deinit) {
1419 if (work->started) {
1420 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1421 wpa_s, NULL);
1422 wpa_s->p2p_send_action_work = NULL;
1423 offchannel_send_action_done(wpa_s);
1424 }
1425 os_free(awork);
1426 return;
1427 }
1428
1429 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1430 awork->bssid, awork->buf, awork->len,
1431 awork->wait_time,
1432 wpas_p2p_send_action_tx_status, 1) < 0) {
1433 os_free(awork);
1434 radio_work_done(work);
1435 return;
1436 }
1437 wpa_s->p2p_send_action_work = work;
1438 }
1439
1440
1441 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1442 unsigned int freq, const u8 *dst,
1443 const u8 *src, const u8 *bssid, const u8 *buf,
1444 size_t len, unsigned int wait_time)
1445 {
1446 struct send_action_work *awork;
1447
1448 if (wpa_s->p2p_send_action_work) {
1449 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1450 return -1;
1451 }
1452
1453 awork = os_zalloc(sizeof(*awork) + len);
1454 if (awork == NULL)
1455 return -1;
1456
1457 awork->freq = freq;
1458 os_memcpy(awork->dst, dst, ETH_ALEN);
1459 os_memcpy(awork->src, src, ETH_ALEN);
1460 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1461 awork->len = len;
1462 awork->wait_time = wait_time;
1463 os_memcpy(awork->buf, buf, len);
1464
1465 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1466 wpas_send_action_cb, awork) < 0) {
1467 os_free(awork);
1468 return -1;
1469 }
1470
1471 return 0;
1472 }
1473
1474
1475 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1476 const u8 *src, const u8 *bssid, const u8 *buf,
1477 size_t len, unsigned int wait_time)
1478 {
1479 struct wpa_supplicant *wpa_s = ctx;
1480 int listen_freq = -1, send_freq = -1;
1481
1482 if (wpa_s->p2p_listen_work)
1483 listen_freq = wpa_s->p2p_listen_work->freq;
1484 if (wpa_s->p2p_send_action_work)
1485 send_freq = wpa_s->p2p_send_action_work->freq;
1486 if (listen_freq != (int) freq && send_freq != (int) freq) {
1487 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1488 listen_freq, send_freq);
1489 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1490 len, wait_time);
1491 }
1492
1493 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1494 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1495 wait_time,
1496 wpas_p2p_send_action_tx_status, 1);
1497 }
1498
1499
1500 static void wpas_send_action_done(void *ctx)
1501 {
1502 struct wpa_supplicant *wpa_s = ctx;
1503
1504 if (wpa_s->p2p_send_action_work) {
1505 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1506 wpa_s, NULL);
1507 os_free(wpa_s->p2p_send_action_work->ctx);
1508 radio_work_done(wpa_s->p2p_send_action_work);
1509 wpa_s->p2p_send_action_work = NULL;
1510 }
1511
1512 offchannel_send_action_done(wpa_s);
1513 }
1514
1515
1516 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1517 struct p2p_go_neg_results *params)
1518 {
1519 if (wpa_s->go_params == NULL) {
1520 wpa_s->go_params = os_malloc(sizeof(*params));
1521 if (wpa_s->go_params == NULL)
1522 return -1;
1523 }
1524 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1525 return 0;
1526 }
1527
1528
1529 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1530 struct p2p_go_neg_results *res)
1531 {
1532 wpa_s->group_formation_reported = 0;
1533 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1534 " dev_addr " MACSTR " wps_method %d",
1535 MAC2STR(res->peer_interface_addr),
1536 MAC2STR(res->peer_device_addr), res->wps_method);
1537 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1538 res->ssid, res->ssid_len);
1539 wpa_supplicant_ap_deinit(wpa_s);
1540 wpas_copy_go_neg_results(wpa_s, res);
1541 if (res->wps_method == WPS_PBC) {
1542 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1543 #ifdef CONFIG_WPS_NFC
1544 } else if (res->wps_method == WPS_NFC) {
1545 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1546 res->peer_interface_addr,
1547 wpa_s->parent->p2p_oob_dev_pw,
1548 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1549 wpa_s->parent->p2p_oob_dev_pw_id ==
1550 DEV_PW_NFC_CONNECTION_HANDOVER ?
1551 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1552 NULL,
1553 NULL, 0, 0);
1554 #endif /* CONFIG_WPS_NFC */
1555 } else {
1556 u16 dev_pw_id = DEV_PW_DEFAULT;
1557 if (wpa_s->p2p_wps_method == WPS_P2PS)
1558 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1559 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1560 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1561 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1562 wpa_s->p2p_pin, 1, dev_pw_id);
1563 }
1564 }
1565
1566
1567 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1568 struct wpa_ssid *ssid)
1569 {
1570 struct wpa_ssid *persistent;
1571 struct psk_list_entry *psk;
1572 struct hostapd_data *hapd;
1573
1574 if (!wpa_s->ap_iface)
1575 return;
1576
1577 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1578 ssid->ssid_len);
1579 if (persistent == NULL)
1580 return;
1581
1582 hapd = wpa_s->ap_iface->bss[0];
1583
1584 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1585 list) {
1586 struct hostapd_wpa_psk *hpsk;
1587
1588 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1589 MACSTR " psk=%d",
1590 MAC2STR(psk->addr), psk->p2p);
1591 hpsk = os_zalloc(sizeof(*hpsk));
1592 if (hpsk == NULL)
1593 break;
1594 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1595 if (psk->p2p)
1596 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1597 else
1598 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1599 hpsk->next = hapd->conf->ssid.wpa_psk;
1600 hapd->conf->ssid.wpa_psk = hpsk;
1601 }
1602 }
1603
1604
1605 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1606 {
1607 unsigned int i;
1608
1609 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1610 wpa_s->p2p_group_common_freqs_num);
1611
1612 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1613 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1614 i, wpa_s->p2p_group_common_freqs[i]);
1615 }
1616
1617
1618 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1619 struct p2p_go_neg_results *params)
1620 {
1621 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1622
1623 wpa_s->p2p_group_common_freqs_num = 0;
1624 os_free(wpa_s->p2p_group_common_freqs);
1625 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1626 if (!wpa_s->p2p_group_common_freqs)
1627 return;
1628
1629 for (i = 0; i < len; i++) {
1630 if (!wpa_s->go_params->freq_list[i])
1631 break;
1632 wpa_s->p2p_group_common_freqs[i] =
1633 wpa_s->go_params->freq_list[i];
1634 }
1635 wpa_s->p2p_group_common_freqs_num = i;
1636 }
1637
1638
1639 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1640 {
1641 #ifndef CONFIG_NO_CONFIG_WRITE
1642 if (wpa_s->parent->conf->update_config &&
1643 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1644 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1645 #endif /* CONFIG_NO_CONFIG_WRITE */
1646 }
1647
1648
1649 static void p2p_go_configured(void *ctx, void *data)
1650 {
1651 struct wpa_supplicant *wpa_s = ctx;
1652 struct p2p_go_neg_results *params = data;
1653 struct wpa_ssid *ssid;
1654 int network_id = -1;
1655
1656 p2p_go_save_group_common_freqs(wpa_s, params);
1657 p2p_go_dump_common_freqs(wpa_s);
1658
1659 ssid = wpa_s->current_ssid;
1660 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1661 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1662 if (wpa_s->global->p2p_group_formation == wpa_s)
1663 wpa_s->global->p2p_group_formation = NULL;
1664 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1665 params->passphrase[0] == '\0' ?
1666 params->psk : NULL,
1667 params->passphrase,
1668 wpa_s->global->p2p_dev_addr,
1669 params->persistent_group, "");
1670 wpa_s->group_formation_reported = 1;
1671
1672 if (wpa_s->parent->p2ps_join_addr_valid) {
1673 wpa_dbg(wpa_s, MSG_DEBUG,
1674 "P2PS: Setting default PIN for " MACSTR,
1675 MAC2STR(wpa_s->parent->p2ps_join_addr));
1676 wpa_supplicant_ap_wps_pin(wpa_s,
1677 wpa_s->parent->p2ps_join_addr,
1678 "12345670", NULL, 0, 0);
1679 wpa_s->parent->p2ps_join_addr_valid = 0;
1680 }
1681
1682 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1683 if (params->persistent_group) {
1684 network_id = wpas_p2p_store_persistent_group(
1685 wpa_s->parent, ssid,
1686 wpa_s->global->p2p_dev_addr);
1687 wpas_p2p_add_psk_list(wpa_s, ssid);
1688 }
1689 if (network_id < 0)
1690 network_id = ssid->id;
1691 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1692 wpas_p2p_cross_connect_setup(wpa_s);
1693 wpas_p2p_set_group_idle_timeout(wpa_s);
1694
1695 if (wpa_s->p2p_first_connection_timeout) {
1696 wpa_dbg(wpa_s, MSG_DEBUG,
1697 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1698 wpa_s->p2p_first_connection_timeout);
1699 wpa_s->p2p_go_group_formation_completed = 0;
1700 wpa_s->global->p2p_group_formation = wpa_s;
1701 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1702 wpa_s->parent, NULL);
1703 eloop_register_timeout(
1704 wpa_s->p2p_first_connection_timeout, 0,
1705 wpas_p2p_group_formation_timeout,
1706 wpa_s->parent, NULL);
1707 }
1708
1709 return;
1710 }
1711
1712 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1713 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1714 params->peer_interface_addr)) {
1715 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1716 "filtering");
1717 return;
1718 }
1719 if (params->wps_method == WPS_PBC) {
1720 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1721 params->peer_device_addr);
1722 #ifdef CONFIG_WPS_NFC
1723 } else if (params->wps_method == WPS_NFC) {
1724 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1725 DEV_PW_NFC_CONNECTION_HANDOVER &&
1726 !wpa_s->parent->p2p_oob_dev_pw) {
1727 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1728 return;
1729 }
1730 wpas_ap_wps_add_nfc_pw(
1731 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1732 wpa_s->parent->p2p_oob_dev_pw,
1733 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1734 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1735 #endif /* CONFIG_WPS_NFC */
1736 } else if (wpa_s->p2p_pin[0])
1737 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1738 wpa_s->p2p_pin, NULL, 0, 0);
1739 os_free(wpa_s->go_params);
1740 wpa_s->go_params = NULL;
1741 }
1742
1743
1744 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1745 struct p2p_go_neg_results *params,
1746 int group_formation)
1747 {
1748 struct wpa_ssid *ssid;
1749
1750 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1751 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1752 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1753 "results");
1754 return;
1755 }
1756
1757 ssid = wpa_config_add_network(wpa_s->conf);
1758 if (ssid == NULL) {
1759 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1760 return;
1761 }
1762
1763 wpa_s->show_group_started = 0;
1764 wpa_s->p2p_go_group_formation_completed = 0;
1765 wpa_s->group_formation_reported = 0;
1766
1767 wpa_config_set_network_defaults(ssid);
1768 ssid->temporary = 1;
1769 ssid->p2p_group = 1;
1770 ssid->p2p_persistent_group = params->persistent_group;
1771 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1772 WPAS_MODE_P2P_GO;
1773 ssid->frequency = params->freq;
1774 ssid->ht40 = params->ht40;
1775 ssid->vht = params->vht;
1776 ssid->ssid = os_zalloc(params->ssid_len + 1);
1777 if (ssid->ssid) {
1778 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1779 ssid->ssid_len = params->ssid_len;
1780 }
1781 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1782 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1783 ssid->proto = WPA_PROTO_RSN;
1784 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1785 ssid->group_cipher = WPA_CIPHER_CCMP;
1786 if (params->freq > 56160) {
1787 /*
1788 * Enable GCMP instead of CCMP as pairwise_cipher and
1789 * group_cipher in 60 GHz.
1790 */
1791 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1792 ssid->group_cipher = WPA_CIPHER_GCMP;
1793 }
1794 if (os_strlen(params->passphrase) > 0) {
1795 ssid->passphrase = os_strdup(params->passphrase);
1796 if (ssid->passphrase == NULL) {
1797 wpa_msg_global(wpa_s, MSG_ERROR,
1798 "P2P: Failed to copy passphrase for GO");
1799 wpa_config_remove_network(wpa_s->conf, ssid->id);
1800 return;
1801 }
1802 } else
1803 ssid->passphrase = NULL;
1804 ssid->psk_set = params->psk_set;
1805 if (ssid->psk_set)
1806 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1807 else if (ssid->passphrase)
1808 wpa_config_update_psk(ssid);
1809 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1810
1811 wpa_s->ap_configured_cb = p2p_go_configured;
1812 wpa_s->ap_configured_cb_ctx = wpa_s;
1813 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1814 wpa_s->scan_req = NORMAL_SCAN_REQ;
1815 wpa_s->connect_without_scan = ssid;
1816 wpa_s->reassociate = 1;
1817 wpa_s->disconnected = 0;
1818 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1819 "start GO)");
1820 wpa_supplicant_req_scan(wpa_s, 0, 0);
1821 }
1822
1823
1824 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1825 const struct wpa_supplicant *src)
1826 {
1827 struct wpa_config *d;
1828 const struct wpa_config *s;
1829
1830 d = dst->conf;
1831 s = src->conf;
1832
1833 #define C(n) if (s->n) d->n = os_strdup(s->n)
1834 C(device_name);
1835 C(manufacturer);
1836 C(model_name);
1837 C(model_number);
1838 C(serial_number);
1839 C(config_methods);
1840 #undef C
1841
1842 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1843 os_memcpy(d->sec_device_type, s->sec_device_type,
1844 sizeof(d->sec_device_type));
1845 d->num_sec_device_types = s->num_sec_device_types;
1846
1847 d->p2p_group_idle = s->p2p_group_idle;
1848 d->p2p_intra_bss = s->p2p_intra_bss;
1849 d->persistent_reconnect = s->persistent_reconnect;
1850 d->max_num_sta = s->max_num_sta;
1851 d->pbc_in_m1 = s->pbc_in_m1;
1852 d->ignore_old_scan_res = s->ignore_old_scan_res;
1853 d->beacon_int = s->beacon_int;
1854 d->dtim_period = s->dtim_period;
1855 d->disassoc_low_ack = s->disassoc_low_ack;
1856 d->disable_scan_offload = s->disable_scan_offload;
1857 d->passive_scan = s->passive_scan;
1858
1859 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1860 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1861 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1862 }
1863 }
1864
1865
1866 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1867 char *ifname, size_t len)
1868 {
1869 char *ifname_ptr = wpa_s->ifname;
1870
1871 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1872 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1873 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1874 }
1875
1876 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1877 if (os_strlen(ifname) >= IFNAMSIZ &&
1878 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1879 int res;
1880
1881 /* Try to avoid going over the IFNAMSIZ length limit */
1882 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1883 if (os_snprintf_error(len, res) && len)
1884 ifname[len - 1] = '\0';
1885 }
1886 }
1887
1888
1889 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1890 enum wpa_driver_if_type type)
1891 {
1892 char ifname[120], force_ifname[120];
1893
1894 if (wpa_s->pending_interface_name[0]) {
1895 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1896 "- skip creation of a new one");
1897 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1898 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1899 "unknown?! ifname='%s'",
1900 wpa_s->pending_interface_name);
1901 return -1;
1902 }
1903 return 0;
1904 }
1905
1906 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1907 force_ifname[0] = '\0';
1908
1909 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1910 ifname);
1911 wpa_s->p2p_group_idx++;
1912
1913 wpa_s->pending_interface_type = type;
1914 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1915 wpa_s->pending_interface_addr, NULL) < 0) {
1916 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1917 "interface");
1918 return -1;
1919 }
1920
1921 if (force_ifname[0]) {
1922 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1923 force_ifname);
1924 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1925 sizeof(wpa_s->pending_interface_name));
1926 } else
1927 os_strlcpy(wpa_s->pending_interface_name, ifname,
1928 sizeof(wpa_s->pending_interface_name));
1929 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1930 MACSTR, wpa_s->pending_interface_name,
1931 MAC2STR(wpa_s->pending_interface_addr));
1932
1933 return 0;
1934 }
1935
1936
1937 static void wpas_p2p_remove_pending_group_interface(
1938 struct wpa_supplicant *wpa_s)
1939 {
1940 if (!wpa_s->pending_interface_name[0] ||
1941 is_zero_ether_addr(wpa_s->pending_interface_addr))
1942 return; /* No pending virtual interface */
1943
1944 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1945 wpa_s->pending_interface_name);
1946 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1947 wpa_s->pending_interface_name);
1948 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1949 wpa_s->pending_interface_name[0] = '\0';
1950 wpa_s->global->pending_group_iface_for_p2ps = 0;
1951 }
1952
1953
1954 static struct wpa_supplicant *
1955 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1956 {
1957 struct wpa_interface iface;
1958 struct wpa_supplicant *group_wpa_s;
1959
1960 if (!wpa_s->pending_interface_name[0]) {
1961 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1962 if (!wpas_p2p_create_iface(wpa_s))
1963 return NULL;
1964 /*
1965 * Something has forced us to remove the pending interface; try
1966 * to create a new one and hope for the best that we will get
1967 * the same local address.
1968 */
1969 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1970 WPA_IF_P2P_CLIENT) < 0)
1971 return NULL;
1972 }
1973
1974 os_memset(&iface, 0, sizeof(iface));
1975 iface.ifname = wpa_s->pending_interface_name;
1976 iface.driver = wpa_s->driver->name;
1977 if (wpa_s->conf->ctrl_interface == NULL &&
1978 wpa_s->parent != wpa_s &&
1979 wpa_s->p2p_mgmt &&
1980 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1981 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1982 else
1983 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1984 iface.driver_param = wpa_s->conf->driver_param;
1985 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1986 if (group_wpa_s == NULL) {
1987 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1988 "wpa_supplicant interface");
1989 return NULL;
1990 }
1991 wpa_s->pending_interface_name[0] = '\0';
1992 group_wpa_s->parent = wpa_s;
1993 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1994 P2P_GROUP_INTERFACE_CLIENT;
1995 wpa_s->global->p2p_group_formation = group_wpa_s;
1996 wpa_s->global->pending_group_iface_for_p2ps = 0;
1997
1998 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1999
2000 return group_wpa_s;
2001 }
2002
2003
2004 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2005 void *timeout_ctx)
2006 {
2007 struct wpa_supplicant *wpa_s = eloop_ctx;
2008 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2009 wpas_p2p_group_formation_failed(wpa_s);
2010 }
2011
2012
2013 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
2014 {
2015 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2016 wpa_s->parent, NULL);
2017 if (wpa_s->global->p2p)
2018 p2p_group_formation_failed(wpa_s->global->p2p);
2019 wpas_group_formation_completed(wpa_s, 0);
2020 }
2021
2022
2023 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2024 {
2025 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2026 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2027 wpa_s->parent, NULL);
2028 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2029 wpa_s->parent, NULL);
2030 wpa_s->global->p2p_fail_on_wps_complete = 0;
2031 }
2032
2033
2034 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2035 {
2036 if (wpa_s->global->p2p_group_formation != wpa_s)
2037 return;
2038 /* Speed up group formation timeout since this cannot succeed */
2039 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2040 wpa_s->parent, NULL);
2041 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2042 wpa_s->parent, NULL);
2043 }
2044
2045
2046 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2047 {
2048 struct wpa_supplicant *wpa_s = ctx;
2049
2050 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2051 wpa_drv_cancel_remain_on_channel(wpa_s);
2052 wpa_s->off_channel_freq = 0;
2053 wpa_s->roc_waiting_drv_freq = 0;
2054 }
2055
2056 if (res->status) {
2057 wpa_msg_global(wpa_s, MSG_INFO,
2058 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2059 res->status);
2060 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2061 wpas_p2p_remove_pending_group_interface(wpa_s);
2062 return;
2063 }
2064
2065 if (wpa_s->p2p_go_ht40)
2066 res->ht40 = 1;
2067 if (wpa_s->p2p_go_vht)
2068 res->vht = 1;
2069
2070 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2071 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2072 " wps_method=%s",
2073 res->role_go ? "GO" : "client", res->freq, res->ht40,
2074 MAC2STR(res->peer_device_addr),
2075 MAC2STR(res->peer_interface_addr),
2076 p2p_wps_method_text(res->wps_method));
2077 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2078
2079 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2080 struct wpa_ssid *ssid;
2081 ssid = wpa_config_get_network(wpa_s->conf,
2082 wpa_s->p2p_persistent_id);
2083 if (ssid && ssid->disabled == 2 &&
2084 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2085 size_t len = os_strlen(ssid->passphrase);
2086 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2087 "on requested persistent group");
2088 os_memcpy(res->passphrase, ssid->passphrase, len);
2089 res->passphrase[len] = '\0';
2090 }
2091 }
2092
2093 if (wpa_s->create_p2p_iface) {
2094 struct wpa_supplicant *group_wpa_s =
2095 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2096 if (group_wpa_s == NULL) {
2097 wpas_p2p_remove_pending_group_interface(wpa_s);
2098 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2099 wpa_s, NULL);
2100 wpas_p2p_group_formation_failed(wpa_s);
2101 return;
2102 }
2103 if (group_wpa_s != wpa_s) {
2104 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2105 sizeof(group_wpa_s->p2p_pin));
2106 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2107 }
2108 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2109 wpa_s->pending_interface_name[0] = '\0';
2110 group_wpa_s->p2p_in_provisioning = 1;
2111
2112 if (res->role_go)
2113 wpas_start_wps_go(group_wpa_s, res, 1);
2114 else
2115 wpas_start_wps_enrollee(group_wpa_s, res);
2116 } else {
2117 wpa_s->p2p_in_provisioning = 1;
2118 wpa_s->global->p2p_group_formation = wpa_s;
2119
2120 if (res->role_go)
2121 wpas_start_wps_go(wpa_s, res, 1);
2122 else
2123 wpas_start_wps_enrollee(ctx, res);
2124 }
2125
2126 wpa_s->p2p_long_listen = 0;
2127 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2128
2129 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2130 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2131 (res->peer_config_timeout % 100) * 10000,
2132 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2133 }
2134
2135
2136 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
2137 {
2138 struct wpa_supplicant *wpa_s = ctx;
2139 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2140 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
2141
2142 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
2143 }
2144
2145
2146 static void wpas_dev_found(void *ctx, const u8 *addr,
2147 const struct p2p_peer_info *info,
2148 int new_device)
2149 {
2150 #ifndef CONFIG_NO_STDOUT_DEBUG
2151 struct wpa_supplicant *wpa_s = ctx;
2152 char devtype[WPS_DEV_TYPE_BUFSIZE];
2153 char *wfd_dev_info_hex = NULL;
2154
2155 #ifdef CONFIG_WIFI_DISPLAY
2156 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2157 WFD_SUBELEM_DEVICE_INFO);
2158 #endif /* CONFIG_WIFI_DISPLAY */
2159
2160 if (info->p2ps_instance) {
2161 char str[256];
2162 const u8 *buf = wpabuf_head(info->p2ps_instance);
2163 size_t len = wpabuf_len(info->p2ps_instance);
2164
2165 while (len) {
2166 u32 id;
2167 u16 methods;
2168 u8 str_len;
2169
2170 if (len < 4 + 2 + 1)
2171 break;
2172 id = WPA_GET_LE32(buf);
2173 buf += sizeof(u32);
2174 methods = WPA_GET_BE16(buf);
2175 buf += sizeof(u16);
2176 str_len = *buf++;
2177 if (str_len > len - 4 - 2 - 1)
2178 break;
2179 os_memcpy(str, buf, str_len);
2180 str[str_len] = '\0';
2181 buf += str_len;
2182 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2183
2184 wpa_msg_global(wpa_s, MSG_INFO,
2185 P2P_EVENT_DEVICE_FOUND MACSTR
2186 " p2p_dev_addr=" MACSTR
2187 " pri_dev_type=%s name='%s'"
2188 " config_methods=0x%x"
2189 " dev_capab=0x%x"
2190 " group_capab=0x%x"
2191 " adv_id=%x asp_svc=%s%s",
2192 MAC2STR(addr),
2193 MAC2STR(info->p2p_device_addr),
2194 wps_dev_type_bin2str(
2195 info->pri_dev_type,
2196 devtype, sizeof(devtype)),
2197 info->device_name, methods,
2198 info->dev_capab, info->group_capab,
2199 id, str,
2200 info->vendor_elems ?
2201 " vendor_elems=1" : "");
2202 }
2203 goto done;
2204 }
2205
2206 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2207 " p2p_dev_addr=" MACSTR
2208 " pri_dev_type=%s name='%s' config_methods=0x%x "
2209 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2210 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2211 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2212 sizeof(devtype)),
2213 info->device_name, info->config_methods,
2214 info->dev_capab, info->group_capab,
2215 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2216 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2217 info->vendor_elems ? " vendor_elems=1" : "",
2218 new_device);
2219
2220 done:
2221 os_free(wfd_dev_info_hex);
2222 #endif /* CONFIG_NO_STDOUT_DEBUG */
2223
2224 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2225 }
2226
2227
2228 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2229 {
2230 struct wpa_supplicant *wpa_s = ctx;
2231
2232 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2233 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2234
2235 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2236 }
2237
2238
2239 static void wpas_find_stopped(void *ctx)
2240 {
2241 struct wpa_supplicant *wpa_s = ctx;
2242 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2243 }
2244
2245
2246 struct wpas_p2p_listen_work {
2247 unsigned int freq;
2248 unsigned int duration;
2249 struct wpabuf *probe_resp_ie;
2250 };
2251
2252
2253 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2254 {
2255 if (lwork == NULL)
2256 return;
2257 wpabuf_free(lwork->probe_resp_ie);
2258 os_free(lwork);
2259 }
2260
2261
2262 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2263 {
2264 struct wpas_p2p_listen_work *lwork;
2265
2266 if (!wpa_s->p2p_listen_work)
2267 return;
2268
2269 lwork = wpa_s->p2p_listen_work->ctx;
2270 wpas_p2p_listen_work_free(lwork);
2271 radio_work_done(wpa_s->p2p_listen_work);
2272 wpa_s->p2p_listen_work = NULL;
2273 }
2274
2275
2276 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2277 {
2278 struct wpa_supplicant *wpa_s = work->wpa_s;
2279 struct wpas_p2p_listen_work *lwork = work->ctx;
2280 unsigned int duration;
2281
2282 if (deinit) {
2283 if (work->started) {
2284 wpa_s->p2p_listen_work = NULL;
2285 wpas_stop_listen(wpa_s);
2286 }
2287 wpas_p2p_listen_work_free(lwork);
2288 return;
2289 }
2290
2291 wpa_s->p2p_listen_work = work;
2292
2293 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2294
2295 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2296 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2297 "report received Probe Request frames");
2298 wpas_p2p_listen_work_done(wpa_s);
2299 return;
2300 }
2301
2302 wpa_s->pending_listen_freq = lwork->freq;
2303 wpa_s->pending_listen_duration = lwork->duration;
2304
2305 duration = lwork->duration;
2306 #ifdef CONFIG_TESTING_OPTIONS
2307 if (wpa_s->extra_roc_dur) {
2308 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2309 duration, duration + wpa_s->extra_roc_dur);
2310 duration += wpa_s->extra_roc_dur;
2311 }
2312 #endif /* CONFIG_TESTING_OPTIONS */
2313
2314 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2315 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2316 "to remain on channel (%u MHz) for Listen "
2317 "state", lwork->freq);
2318 wpas_p2p_listen_work_done(wpa_s);
2319 wpa_s->pending_listen_freq = 0;
2320 return;
2321 }
2322 wpa_s->off_channel_freq = 0;
2323 wpa_s->roc_waiting_drv_freq = lwork->freq;
2324 }
2325
2326
2327 static int wpas_start_listen(void *ctx, unsigned int freq,
2328 unsigned int duration,
2329 const struct wpabuf *probe_resp_ie)
2330 {
2331 struct wpa_supplicant *wpa_s = ctx;
2332 struct wpas_p2p_listen_work *lwork;
2333
2334 if (wpa_s->p2p_listen_work) {
2335 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2336 return -1;
2337 }
2338
2339 lwork = os_zalloc(sizeof(*lwork));
2340 if (lwork == NULL)
2341 return -1;
2342 lwork->freq = freq;
2343 lwork->duration = duration;
2344 if (probe_resp_ie) {
2345 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2346 if (lwork->probe_resp_ie == NULL) {
2347 wpas_p2p_listen_work_free(lwork);
2348 return -1;
2349 }
2350 }
2351
2352 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2353 lwork) < 0) {
2354 wpas_p2p_listen_work_free(lwork);
2355 return -1;
2356 }
2357
2358 return 0;
2359 }
2360
2361
2362 static void wpas_stop_listen(void *ctx)
2363 {
2364 struct wpa_supplicant *wpa_s = ctx;
2365 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2366 wpa_drv_cancel_remain_on_channel(wpa_s);
2367 wpa_s->off_channel_freq = 0;
2368 wpa_s->roc_waiting_drv_freq = 0;
2369 }
2370 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2371 wpa_drv_probe_req_report(wpa_s, 0);
2372 wpas_p2p_listen_work_done(wpa_s);
2373 }
2374
2375
2376 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
2377 {
2378 struct wpa_supplicant *wpa_s = ctx;
2379 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
2380 }
2381
2382
2383 /*
2384 * DNS Header section is used only to calculate compression pointers, so the
2385 * contents of this data does not matter, but the length needs to be reserved
2386 * in the virtual packet.
2387 */
2388 #define DNS_HEADER_LEN 12
2389
2390 /*
2391 * 27-octet in-memory packet from P2P specification containing two implied
2392 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
2393 */
2394 #define P2P_SD_IN_MEMORY_LEN 27
2395
2396 static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
2397 u8 **spos, const u8 *end)
2398 {
2399 while (*spos < end) {
2400 u8 val = ((*spos)[0] & 0xc0) >> 6;
2401 int len;
2402
2403 if (val == 1 || val == 2) {
2404 /* These are reserved values in RFC 1035 */
2405 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
2406 "sequence starting with 0x%x", val);
2407 return -1;
2408 }
2409
2410 if (val == 3) {
2411 u16 offset;
2412 u8 *spos_tmp;
2413
2414 /* Offset */
2415 if (*spos + 2 > end) {
2416 wpa_printf(MSG_DEBUG, "P2P: No room for full "
2417 "DNS offset field");
2418 return -1;
2419 }
2420
2421 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
2422 if (offset >= *spos - start) {
2423 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
2424 "pointer offset %u", offset);
2425 return -1;
2426 }
2427
2428 (*spos) += 2;
2429 spos_tmp = start + offset;
2430 return p2p_sd_dns_uncompress_label(upos, uend, start,
2431 &spos_tmp,
2432 *spos - 2);
2433 }
2434
2435 /* Label */
2436 len = (*spos)[0] & 0x3f;
2437 if (len == 0)
2438 return 0;
2439
2440 (*spos)++;
2441 if (*spos + len > end) {
2442 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
2443 "sequence - no room for label with length "
2444 "%u", len);
2445 return -1;
2446 }
2447
2448 if (*upos + len + 2 > uend)
2449 return -2;
2450
2451 os_memcpy(*upos, *spos, len);
2452 *spos += len;
2453 *upos += len;
2454 (*upos)[0] = '.';
2455 (*upos)++;
2456 (*upos)[0] = '\0';
2457 }
2458
2459 return 0;
2460 }
2461
2462
2463 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
2464 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
2465 * not large enough */
2466 static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
2467 size_t msg_len, size_t offset)
2468 {
2469 /* 27-octet in-memory packet from P2P specification */
2470 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
2471 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
2472 u8 *tmp, *end, *spos;
2473 char *upos, *uend;
2474 int ret = 0;
2475
2476 if (buf_len < 2)
2477 return -1;
2478 if (offset > msg_len)
2479 return -1;
2480
2481 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
2482 if (tmp == NULL)
2483 return -1;
2484 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
2485 end = spos + msg_len;
2486 spos += offset;
2487
2488 os_memset(tmp, 0, DNS_HEADER_LEN);
2489 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
2490 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
2491
2492 upos = buf;
2493 uend = buf + buf_len;
2494
2495 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
2496 if (ret) {
2497 os_free(tmp);
2498 return ret;
2499 }
2500
2501 if (upos == buf) {
2502 upos[0] = '.';
2503 upos[1] = '\0';
2504 } else if (upos[-1] == '.')
2505 upos[-1] = '\0';
2506
2507 os_free(tmp);
2508 return 0;
2509 }
2510
2511
2512 static struct p2p_srv_bonjour *
2513 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
2514 const struct wpabuf *query)
2515 {
2516 struct p2p_srv_bonjour *bsrv;
2517 size_t len;
2518
2519 len = wpabuf_len(query);
2520 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2521 struct p2p_srv_bonjour, list) {
2522 if (len == wpabuf_len(bsrv->query) &&
2523 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
2524 len) == 0)
2525 return bsrv;
2526 }
2527 return NULL;
2528 }
2529
2530
2531 static struct p2p_srv_upnp *
2532 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
2533 const char *service)
2534 {
2535 struct p2p_srv_upnp *usrv;
2536
2537 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2538 struct p2p_srv_upnp, list) {
2539 if (version == usrv->version &&
2540 os_strcmp(service, usrv->service) == 0)
2541 return usrv;
2542 }
2543 return NULL;
2544 }
2545
2546
2547 static void wpas_sd_add_empty(struct wpabuf *resp, u8 srv_proto,
2548 u8 srv_trans_id, u8 status)
2549 {
2550 u8 *len_pos;
2551
2552 if (wpabuf_tailroom(resp) < 5)
2553 return;
2554
2555 /* Length (to be filled) */
2556 len_pos = wpabuf_put(resp, 2);
2557 wpabuf_put_u8(resp, srv_proto);
2558 wpabuf_put_u8(resp, srv_trans_id);
2559 /* Status Code */
2560 wpabuf_put_u8(resp, status);
2561 /* Response Data: empty */
2562 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2563 }
2564
2565
2566 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
2567 u8 srv_trans_id)
2568 {
2569 wpas_sd_add_empty(resp, srv_proto, srv_trans_id,
2570 P2P_SD_PROTO_NOT_AVAILABLE);
2571 }
2572
2573
2574 static void wpas_sd_add_bad_request(struct wpabuf *resp, u8 srv_proto,
2575 u8 srv_trans_id)
2576 {
2577 wpas_sd_add_empty(resp, srv_proto, srv_trans_id, P2P_SD_BAD_REQUEST);
2578 }
2579
2580
2581 static void wpas_sd_add_not_found(struct wpabuf *resp, u8 srv_proto,
2582 u8 srv_trans_id)
2583 {
2584 wpas_sd_add_empty(resp, srv_proto, srv_trans_id,
2585 P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2586 }
2587
2588
2589 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
2590 struct wpabuf *resp, u8 srv_trans_id)
2591 {
2592 struct p2p_srv_bonjour *bsrv;
2593 u8 *len_pos;
2594
2595 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
2596
2597 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2598 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2599 return;
2600 }
2601
2602 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2603 struct p2p_srv_bonjour, list) {
2604 if (wpabuf_tailroom(resp) <
2605 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
2606 return;
2607 /* Length (to be filled) */
2608 len_pos = wpabuf_put(resp, 2);
2609 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2610 wpabuf_put_u8(resp, srv_trans_id);
2611 /* Status Code */
2612 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2613 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2614 wpabuf_head(bsrv->resp),
2615 wpabuf_len(bsrv->resp));
2616 /* Response Data */
2617 wpabuf_put_buf(resp, bsrv->query); /* Key */
2618 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2619 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2620 2);
2621 }
2622 }
2623
2624
2625 static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2626 size_t query_len)
2627 {
2628 char str_rx[256], str_srv[256];
2629
2630 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2631 return 0; /* Too short to include DNS Type and Version */
2632 if (os_memcmp(query + query_len - 3,
2633 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2634 3) != 0)
2635 return 0; /* Mismatch in DNS Type or Version */
2636 if (query_len == wpabuf_len(bsrv->query) &&
2637 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2638 return 1; /* Binary match */
2639
2640 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2641 0))
2642 return 0; /* Failed to uncompress query */
2643 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2644 wpabuf_head(bsrv->query),
2645 wpabuf_len(bsrv->query) - 3, 0))
2646 return 0; /* Failed to uncompress service */
2647
2648 return os_strcmp(str_rx, str_srv) == 0;
2649 }
2650
2651
2652 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2653 struct wpabuf *resp, u8 srv_trans_id,
2654 const u8 *query, size_t query_len)
2655 {
2656 struct p2p_srv_bonjour *bsrv;
2657 u8 *len_pos;
2658 int matches = 0;
2659
2660 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2661 query, query_len);
2662 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2663 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2664 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2665 srv_trans_id);
2666 return;
2667 }
2668
2669 if (query_len == 0) {
2670 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2671 return;
2672 }
2673
2674 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2675 struct p2p_srv_bonjour, list) {
2676 if (!match_bonjour_query(bsrv, query, query_len))
2677 continue;
2678
2679 if (wpabuf_tailroom(resp) <
2680 5 + query_len + wpabuf_len(bsrv->resp))
2681 return;
2682
2683 matches++;
2684
2685 /* Length (to be filled) */
2686 len_pos = wpabuf_put(resp, 2);
2687 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2688 wpabuf_put_u8(resp, srv_trans_id);
2689
2690 /* Status Code */
2691 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2692 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2693 wpabuf_head(bsrv->resp),
2694 wpabuf_len(bsrv->resp));
2695
2696 /* Response Data */
2697 wpabuf_put_data(resp, query, query_len); /* Key */
2698 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2699
2700 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2701 }
2702
2703 if (matches == 0) {
2704 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2705 "available");
2706 if (wpabuf_tailroom(resp) < 5)
2707 return;
2708
2709 /* Length (to be filled) */
2710 len_pos = wpabuf_put(resp, 2);
2711 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2712 wpabuf_put_u8(resp, srv_trans_id);
2713
2714 /* Status Code */
2715 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2716 /* Response Data: empty */
2717 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2718 2);
2719 }
2720 }
2721
2722
2723 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2724 struct wpabuf *resp, u8 srv_trans_id)
2725 {
2726 struct p2p_srv_upnp *usrv;
2727 u8 *len_pos;
2728
2729 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2730
2731 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2732 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2733 return;
2734 }
2735
2736 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2737 struct p2p_srv_upnp, list) {
2738 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2739 return;
2740
2741 /* Length (to be filled) */
2742 len_pos = wpabuf_put(resp, 2);
2743 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2744 wpabuf_put_u8(resp, srv_trans_id);
2745
2746 /* Status Code */
2747 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2748 /* Response Data */
2749 wpabuf_put_u8(resp, usrv->version);
2750 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2751 usrv->service);
2752 wpabuf_put_str(resp, usrv->service);
2753 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2754 2);
2755 }
2756 }
2757
2758
2759 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2760 struct wpabuf *resp, u8 srv_trans_id,
2761 const u8 *query, size_t query_len)
2762 {
2763 struct p2p_srv_upnp *usrv;
2764 u8 *len_pos;
2765 u8 version;
2766 char *str;
2767 int count = 0;
2768
2769 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2770 query, query_len);
2771
2772 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2773 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2774 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2775 srv_trans_id);
2776 return;
2777 }
2778
2779 if (query_len == 0) {
2780 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2781 return;
2782 }
2783
2784 if (wpabuf_tailroom(resp) < 5)
2785 return;
2786
2787 /* Length (to be filled) */
2788 len_pos = wpabuf_put(resp, 2);
2789 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2790 wpabuf_put_u8(resp, srv_trans_id);
2791
2792 version = query[0];
2793 str = os_malloc(query_len);
2794 if (str == NULL)
2795 return;
2796 os_memcpy(str, query + 1, query_len - 1);
2797 str[query_len - 1] = '\0';
2798
2799 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2800 struct p2p_srv_upnp, list) {
2801 if (version != usrv->version)
2802 continue;
2803
2804 if (os_strcmp(str, "ssdp:all") != 0 &&
2805 os_strstr(usrv->service, str) == NULL)
2806 continue;
2807
2808 if (wpabuf_tailroom(resp) < 2)
2809 break;
2810 if (count == 0) {
2811 /* Status Code */
2812 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2813 /* Response Data */
2814 wpabuf_put_u8(resp, version);
2815 } else
2816 wpabuf_put_u8(resp, ',');
2817
2818 count++;
2819
2820 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2821 usrv->service);
2822 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2823 break;
2824 wpabuf_put_str(resp, usrv->service);
2825 }
2826 os_free(str);
2827
2828 if (count == 0) {
2829 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2830 "available");
2831 /* Status Code */
2832 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2833 /* Response Data: empty */
2834 }
2835
2836 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2837 }
2838
2839
2840 #ifdef CONFIG_WIFI_DISPLAY
2841 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2842 struct wpabuf *resp, u8 srv_trans_id,
2843 const u8 *query, size_t query_len)
2844 {
2845 const u8 *pos;
2846 u8 role;
2847 u8 *len_pos;
2848
2849 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2850
2851 if (!wpa_s->global->wifi_display) {
2852 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2853 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2854 srv_trans_id);
2855 return;
2856 }
2857
2858 if (query_len < 1) {
2859 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2860 "Role");
2861 return;
2862 }
2863
2864 if (wpabuf_tailroom(resp) < 5)
2865 return;
2866
2867 pos = query;
2868 role = *pos++;
2869 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2870
2871 /* TODO: role specific handling */
2872
2873 /* Length (to be filled) */
2874 len_pos = wpabuf_put(resp, 2);
2875 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2876 wpabuf_put_u8(resp, srv_trans_id);
2877 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2878
2879 while (pos < query + query_len) {
2880 if (*pos < MAX_WFD_SUBELEMS &&
2881 wpa_s->global->wfd_subelem[*pos] &&
2882 wpabuf_tailroom(resp) >=
2883 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2884 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2885 "subelement %u", *pos);
2886 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2887 }
2888 pos++;
2889 }
2890
2891 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2892 }
2893 #endif /* CONFIG_WIFI_DISPLAY */
2894
2895
2896 static int find_p2ps_substr(struct p2ps_advertisement *adv_data,
2897 const u8 *needle, size_t needle_len)
2898 {
2899 const u8 *haystack = (const u8 *) adv_data->svc_info;
2900 size_t haystack_len, i;
2901
2902 /* Allow search term to be empty */
2903 if (!needle || !needle_len)
2904 return 1;
2905
2906 if (!haystack)
2907 return 0;
2908
2909 haystack_len = os_strlen(adv_data->svc_info);
2910 for (i = 0; i < haystack_len; i++) {
2911 if (haystack_len - i < needle_len)
2912 break;
2913 if (os_memcmp(haystack + i, needle, needle_len) == 0)
2914 return 1;
2915 }
2916
2917 return 0;
2918 }
2919
2920
2921 static void wpas_sd_req_asp(struct wpa_supplicant *wpa_s,
2922 struct wpabuf *resp, u8 srv_trans_id,
2923 const u8 *query, size_t query_len)
2924 {
2925 struct p2ps_advertisement *adv_data;
2926 const u8 *svc = &query[1];
2927 const u8 *info = NULL;
2928 size_t svc_len = query[0];
2929 size_t info_len = 0;
2930 int prefix = 0;
2931 u8 *count_pos = NULL;
2932 u8 *len_pos = NULL;
2933
2934 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for ASP", query, query_len);
2935
2936 if (!wpa_s->global->p2p) {
2937 wpa_printf(MSG_DEBUG, "P2P: ASP protocol not available");
2938 wpas_sd_add_proto_not_avail(resp, P2P_SERV_P2PS, srv_trans_id);
2939 return;
2940 }
2941
2942 /* Info block is optional */
2943 if (svc_len + 1 < query_len) {
2944 info = &svc[svc_len];
2945 info_len = *info++;
2946 }
2947
2948 /* Range check length of svc string and info block */
2949 if (svc_len + (info_len ? info_len + 2 : 1) > query_len) {
2950 wpa_printf(MSG_DEBUG, "P2P: ASP bad request");
2951 wpas_sd_add_bad_request(resp, P2P_SERV_P2PS, srv_trans_id);
2952 return;
2953 }
2954
2955 /* Detect and correct for prefix search */
2956 if (svc_len && svc[svc_len - 1] == '*') {
2957 prefix = 1;
2958 svc_len--;
2959 }
2960
2961 for (adv_data = p2p_get_p2ps_adv_list(wpa_s->global->p2p);
2962 adv_data; adv_data = adv_data->next) {
2963 /* If not a prefix match, reject length mismatches */
2964 if (!prefix && svc_len != os_strlen(adv_data->svc_name))
2965 continue;
2966
2967 /* Search each service for request */
2968 if (os_memcmp(adv_data->svc_name, svc, svc_len) == 0 &&
2969 find_p2ps_substr(adv_data, info, info_len)) {
2970 size_t len = os_strlen(adv_data->svc_name);
2971 size_t svc_info_len = 0;
2972
2973 if (adv_data->svc_info)
2974 svc_info_len = os_strlen(adv_data->svc_info);
2975
2976 if (len > 0xff || svc_info_len > 0xffff)
2977 return;
2978
2979 /* Length & Count to be filled as we go */
2980 if (!len_pos && !count_pos) {
2981 if (wpabuf_tailroom(resp) <
2982 len + svc_info_len + 16)
2983 return;
2984
2985 len_pos = wpabuf_put(resp, 2);
2986 wpabuf_put_u8(resp, P2P_SERV_P2PS);
2987 wpabuf_put_u8(resp, srv_trans_id);
2988 /* Status Code */
2989 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2990 count_pos = wpabuf_put(resp, 1);
2991 *count_pos = 0;
2992 } else if (wpabuf_tailroom(resp) <
2993 len + svc_info_len + 10)
2994 return;
2995
2996 if (svc_info_len) {
2997 wpa_printf(MSG_DEBUG,
2998 "P2P: Add Svc: %s info: %s",
2999 adv_data->svc_name,
3000 adv_data->svc_info);
3001 } else {
3002 wpa_printf(MSG_DEBUG, "P2P: Add Svc: %s",
3003 adv_data->svc_name);
3004 }
3005
3006 /* Advertisement ID */
3007 wpabuf_put_le32(resp, adv_data->id);
3008
3009 /* Config Methods */
3010 wpabuf_put_be16(resp, adv_data->config_methods);
3011
3012 /* Service Name */
3013 wpabuf_put_u8(resp, (u8) len);
3014 wpabuf_put_data(resp, adv_data->svc_name, len);
3015
3016 /* Service State */
3017 wpabuf_put_u8(resp, adv_data->state);
3018
3019 /* Service Information */
3020 wpabuf_put_le16(resp, (u16) svc_info_len);
3021 wpabuf_put_data(resp, adv_data->svc_info, svc_info_len);
3022
3023 /* Update length and count */
3024 (*count_pos)++;
3025 WPA_PUT_LE16(len_pos,
3026 (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
3027 }
3028 }
3029
3030 /* Return error if no matching svc found */
3031 if (count_pos == NULL) {
3032 wpa_printf(MSG_DEBUG, "P2P: ASP service not found");
3033 wpas_sd_add_not_found(resp, P2P_SERV_P2PS, srv_trans_id);
3034 }
3035 }
3036
3037
3038 static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
3039 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
3040 {
3041 struct wpa_supplicant *wpa_s = ctx;
3042 const u8 *pos = tlvs;
3043 const u8 *end = tlvs + tlvs_len;
3044 const u8 *tlv_end;
3045 u16 slen;
3046 struct wpabuf *resp;
3047 u8 srv_proto, srv_trans_id;
3048 size_t buf_len;
3049 char *buf;
3050
3051 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
3052 tlvs, tlvs_len);
3053 buf_len = 2 * tlvs_len + 1;
3054 buf = os_malloc(buf_len);
3055 if (buf) {
3056 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
3057 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
3058 MACSTR " %u %u %s",
3059 freq, MAC2STR(sa), dialog_token, update_indic,
3060 buf);
3061 os_free(buf);
3062 }
3063
3064 if (wpa_s->p2p_sd_over_ctrl_iface) {
3065 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
3066 update_indic, tlvs, tlvs_len);
3067 return; /* to be processed by an external program */
3068 }
3069
3070 resp = wpabuf_alloc(10000);
3071 if (resp == NULL)
3072 return;
3073
3074 while (pos + 1 < end) {
3075 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
3076 slen = WPA_GET_LE16(pos);
3077 pos += 2;
3078 if (pos + slen > end || slen < 2) {
3079 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
3080 "length");
3081 wpabuf_free(resp);
3082 return;
3083 }
3084 tlv_end = pos + slen;
3085
3086 srv_proto = *pos++;
3087 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
3088 srv_proto);
3089 srv_trans_id = *pos++;
3090 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
3091 srv_trans_id);
3092
3093 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
3094 pos, tlv_end - pos);
3095
3096
3097 if (wpa_s->force_long_sd) {
3098 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
3099 "response");
3100 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
3101 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
3102 goto done;
3103 }
3104
3105 switch (srv_proto) {
3106 case P2P_SERV_ALL_SERVICES:
3107 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
3108 "for all services");
3109 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
3110 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
3111 wpa_printf(MSG_DEBUG, "P2P: No service "
3112 "discovery protocols available");
3113 wpas_sd_add_proto_not_avail(
3114 resp, P2P_SERV_ALL_SERVICES,
3115 srv_trans_id);
3116 break;
3117 }
3118 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
3119 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
3120 break;
3121 case P2P_SERV_BONJOUR:
3122 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
3123 pos, tlv_end - pos);
3124 break;
3125 case P2P_SERV_UPNP:
3126 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
3127 pos, tlv_end - pos);
3128 break;
3129 #ifdef CONFIG_WIFI_DISPLAY
3130 case P2P_SERV_WIFI_DISPLAY:
3131 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
3132 pos, tlv_end - pos);
3133 break;
3134 #endif /* CONFIG_WIFI_DISPLAY */
3135 case P2P_SERV_P2PS:
3136 wpas_sd_req_asp(wpa_s, resp, srv_trans_id,
3137 pos, tlv_end - pos);
3138 break;
3139 default:
3140 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
3141 "protocol %u", srv_proto);
3142 wpas_sd_add_proto_not_avail(resp, srv_proto,
3143 srv_trans_id);
3144 break;
3145 }
3146
3147 pos = tlv_end;
3148 }
3149
3150 done:
3151 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
3152 update_indic, tlvs, tlvs_len);
3153
3154 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
3155
3156 wpabuf_free(resp);
3157 }
3158
3159
3160 static void wpas_sd_p2ps_serv_response(struct wpa_supplicant *wpa_s,
3161 const u8 *sa, u8 srv_trans_id,
3162 const u8 *pos, const u8 *tlv_end)
3163 {
3164 u8 left = *pos++;
3165 u32 adv_id;
3166 u8 svc_status;
3167 u16 config_methods;
3168 char svc_str[256];
3169
3170 while (left-- && pos < tlv_end) {
3171 char *buf = NULL;
3172 size_t buf_len;
3173 u8 svc_len;
3174
3175 /* Sanity check fixed length+svc_str */
3176 if (pos + 6 >= tlv_end)
3177 break;
3178 svc_len = pos[6];
3179 if (pos + svc_len + 10 > tlv_end)
3180 break;
3181
3182 /* Advertisement ID */
3183 adv_id = WPA_GET_LE32(pos);
3184 pos += sizeof(u32);
3185
3186 /* Config Methods */
3187 config_methods = WPA_GET_BE16(pos);
3188 pos += sizeof(u16);
3189
3190 /* Service Name */
3191 pos++; /* svc_len */
3192 os_memcpy(svc_str, pos, svc_len);
3193 svc_str[svc_len] = '\0';
3194 pos += svc_len;
3195
3196 /* Service Status */
3197 svc_status = *pos++;
3198
3199 /* Service Information Length */
3200 buf_len = WPA_GET_LE16(pos);
3201 pos += sizeof(u16);
3202
3203 /* Sanity check buffer length */
3204 if (buf_len > (unsigned int) (tlv_end - pos))
3205 break;
3206
3207 if (buf_len) {
3208 buf = os_zalloc(2 * buf_len + 1);
3209 if (buf) {
3210 utf8_escape((const char *) pos, buf_len, buf,
3211 2 * buf_len + 1);
3212 }
3213 }
3214
3215 pos += buf_len;
3216
3217 if (buf) {
3218 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_SERV_ASP_RESP
3219 MACSTR " %x %x %x %x %s '%s'",
3220 MAC2STR(sa), srv_trans_id, adv_id,
3221 svc_status, config_methods, svc_str,
3222 buf);
3223 os_free(buf);
3224 } else {
3225 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_SERV_ASP_RESP
3226 MACSTR " %x %x %x %x %s",
3227 MAC2STR(sa), srv_trans_id, adv_id,
3228 svc_status, config_methods, svc_str);
3229 }
3230 }
3231 }
3232
3233
3234 static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
3235 const u8 *tlvs, size_t tlvs_len)
3236 {
3237 struct wpa_supplicant *wpa_s = ctx;
3238 const u8 *pos = tlvs;
3239 const u8 *end = tlvs + tlvs_len;
3240 const u8 *tlv_end;
3241 u16 slen;
3242 size_t buf_len;
3243 char *buf;
3244
3245 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
3246 tlvs, tlvs_len);
3247 if (tlvs_len > 1500) {
3248 /* TODO: better way for handling this */
3249 wpa_msg_ctrl(wpa_s, MSG_INFO,
3250 P2P_EVENT_SERV_DISC_RESP MACSTR
3251 " %u <long response: %u bytes>",
3252 MAC2STR(sa), update_indic,
3253 (unsigned int) tlvs_len);
3254 } else {
3255 buf_len = 2 * tlvs_len + 1;
3256 buf = os_malloc(buf_len);
3257 if (buf) {
3258 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
3259 wpa_msg_ctrl(wpa_s, MSG_INFO,
3260 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
3261 MAC2STR(sa), update_indic, buf);
3262 os_free(buf);
3263 }
3264 }
3265
3266 while (pos < end) {
3267 u8 srv_proto, srv_trans_id, status;
3268
3269 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
3270 slen = WPA_GET_LE16(pos);
3271 pos += 2;
3272 if (pos + slen > end || slen < 3) {
3273 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
3274 "length");
3275 return;
3276 }
3277 tlv_end = pos + slen;
3278
3279 srv_proto = *pos++;
3280 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
3281 srv_proto);
3282 srv_trans_id = *pos++;
3283 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
3284 srv_trans_id);
3285 status = *pos++;
3286 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
3287 status);
3288
3289 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
3290 pos, tlv_end - pos);
3291
3292 if (srv_proto == P2P_SERV_P2PS && pos < tlv_end) {
3293 wpas_sd_p2ps_serv_response(wpa_s, sa, srv_trans_id,
3294 pos, tlv_end);
3295 }
3296
3297 pos = tlv_end;
3298 }
3299
3300 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
3301 }
3302
3303
3304 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
3305 const struct wpabuf *tlvs)
3306 {
3307 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3308 return 0;
3309 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
3310 }
3311
3312
3313 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
3314 u8 version, const char *query)
3315 {
3316 struct wpabuf *tlvs;
3317 u64 ret;
3318
3319 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
3320 if (tlvs == NULL)
3321 return 0;
3322 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
3323 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
3324 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
3325 wpabuf_put_u8(tlvs, version);
3326 wpabuf_put_str(tlvs, query);
3327 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
3328 wpabuf_free(tlvs);
3329 return ret;
3330 }
3331
3332
3333 u64 wpas_p2p_sd_request_asp(struct wpa_supplicant *wpa_s, const u8 *dst, u8 id,
3334 const char *svc_str, const char *info_substr)
3335 {
3336 struct wpabuf *tlvs;
3337 size_t plen, svc_len, substr_len = 0;
3338 u64 ret;
3339
3340 svc_len = os_strlen(svc_str);
3341 if (info_substr)
3342 substr_len = os_strlen(info_substr);
3343
3344 if (svc_len > 0xff || substr_len > 0xff)
3345 return 0;
3346
3347 plen = 1 + 1 + 1 + svc_len + 1 + substr_len;
3348 tlvs = wpabuf_alloc(2 + plen);
3349 if (tlvs == NULL)
3350 return 0;
3351
3352 wpabuf_put_le16(tlvs, plen);
3353 wpabuf_put_u8(tlvs, P2P_SERV_P2PS);
3354 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
3355 wpabuf_put_u8(tlvs, (u8) svc_len); /* Service String Length */
3356 wpabuf_put_data(tlvs, svc_str, svc_len);
3357 wpabuf_put_u8(tlvs, (u8) substr_len); /* Info Substring Length */
3358 wpabuf_put_data(tlvs, info_substr, substr_len);
3359 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
3360 wpabuf_free(tlvs);
3361
3362 return ret;
3363 }
3364
3365
3366 #ifdef CONFIG_WIFI_DISPLAY
3367
3368 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
3369 const struct wpabuf *tlvs)
3370 {
3371 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3372 return 0;
3373 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
3374 }
3375
3376
3377 #define MAX_WFD_SD_SUBELEMS 20
3378
3379 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
3380 const char *subelems)
3381 {
3382 u8 *len;
3383 const char *pos;
3384 int val;
3385 int count = 0;
3386
3387 len = wpabuf_put(tlvs, 2);
3388 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
3389 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
3390
3391 wpabuf_put_u8(tlvs, role);
3392
3393 pos = subelems;
3394 while (*pos) {
3395 val = atoi(pos);
3396 if (val >= 0 && val < 256) {
3397 wpabuf_put_u8(tlvs, val);
3398 count++;
3399 if (count == MAX_WFD_SD_SUBELEMS)
3400 break;
3401 }
3402 pos = os_strchr(pos + 1, ',');
3403 if (pos == NULL)
3404 break;
3405 pos++;
3406 }
3407
3408 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
3409 }
3410
3411
3412 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
3413 const u8 *dst, const char *role)
3414 {
3415 struct wpabuf *tlvs;
3416 u64 ret;
3417 const char *subelems;
3418 u8 id = 1;
3419
3420 subelems = os_strchr(role, ' ');
3421 if (subelems == NULL)
3422 return 0;
3423 subelems++;
3424
3425 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
3426 if (tlvs == NULL)
3427 return 0;
3428
3429 if (os_strstr(role, "[source]"))
3430 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
3431 if (os_strstr(role, "[pri-sink]"))
3432 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
3433 if (os_strstr(role, "[sec-sink]"))
3434 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
3435 if (os_strstr(role, "[source+sink]"))
3436 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
3437
3438 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
3439 wpabuf_free(tlvs);
3440 return ret;
3441 }
3442
3443 #endif /* CONFIG_WIFI_DISPLAY */
3444
3445
3446 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
3447 {
3448 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3449 return -1;
3450 return p2p_sd_cancel_request(wpa_s->global->p2p,
3451 (void *) (uintptr_t) req);
3452 }
3453
3454
3455 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
3456 const u8 *dst, u8 dialog_token,
3457 const struct wpabuf *resp_tlvs)
3458 {
3459 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3460 return;
3461 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
3462 resp_tlvs);
3463 }
3464
3465
3466 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
3467 {
3468 if (wpa_s->global->p2p)
3469 p2p_sd_service_update(wpa_s->global->p2p);
3470 }
3471
3472
3473 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
3474 {
3475 dl_list_del(&bsrv->list);
3476 wpabuf_free(bsrv->query);
3477 wpabuf_free(bsrv->resp);
3478 os_free(bsrv);
3479 }
3480
3481
3482 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
3483 {
3484 dl_list_del(&usrv->list);
3485 os_free(usrv->service);
3486 os_free(usrv);
3487 }
3488
3489
3490 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
3491 {
3492 struct p2p_srv_bonjour *bsrv, *bn;
3493 struct p2p_srv_upnp *usrv, *un;
3494
3495 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
3496 struct p2p_srv_bonjour, list)
3497 wpas_p2p_srv_bonjour_free(bsrv);
3498
3499 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
3500 struct p2p_srv_upnp, list)
3501 wpas_p2p_srv_upnp_free(usrv);
3502
3503 wpas_p2p_sd_service_update(wpa_s);
3504 }
3505
3506
3507 int wpas_p2p_service_p2ps_id_exists(struct wpa_supplicant *wpa_s, u32 adv_id)
3508 {
3509 if (adv_id == 0)
3510 return 1;
3511
3512 if (p2p_service_p2ps_id(wpa_s->global->p2p, adv_id))
3513 return 1;
3514
3515 return 0;
3516 }
3517
3518
3519 int wpas_p2p_service_del_asp(struct wpa_supplicant *wpa_s, u32 adv_id)
3520 {
3521 return p2p_service_del_asp(wpa_s->global->p2p, adv_id);
3522 }
3523
3524
3525 int wpas_p2p_service_add_asp(struct wpa_supplicant *wpa_s,
3526 int auto_accept, u32 adv_id,
3527 const char *adv_str, u8 svc_state,
3528 u16 config_methods, const char *svc_info)
3529 {
3530 return p2p_service_add_asp(wpa_s->global->p2p, auto_accept, adv_id,
3531 adv_str, svc_state, config_methods,
3532 svc_info);
3533 }
3534
3535
3536 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
3537 struct wpabuf *query, struct wpabuf *resp)
3538 {
3539 struct p2p_srv_bonjour *bsrv;
3540
3541 bsrv = os_zalloc(sizeof(*bsrv));
3542 if (bsrv == NULL)
3543 return -1;
3544 bsrv->query = query;
3545 bsrv->resp = resp;
3546 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
3547
3548 wpas_p2p_sd_service_update(wpa_s);
3549 return 0;
3550 }
3551
3552
3553 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
3554 const struct wpabuf *query)
3555 {
3556 struct p2p_srv_bonjour *bsrv;
3557
3558 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
3559 if (bsrv == NULL)
3560 return -1;
3561 wpas_p2p_srv_bonjour_free(bsrv);
3562 wpas_p2p_sd_service_update(wpa_s);
3563 return 0;
3564 }
3565
3566
3567 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
3568 const char *service)
3569 {
3570 struct p2p_srv_upnp *usrv;
3571
3572 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
3573 return 0; /* Already listed */
3574 usrv = os_zalloc(sizeof(*usrv));
3575 if (usrv == NULL)
3576 return -1;
3577 usrv->version = version;
3578 usrv->service = os_strdup(service);
3579 if (usrv->service == NULL) {
3580 os_free(usrv);
3581 return -1;
3582 }
3583 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
3584
3585 wpas_p2p_sd_service_update(wpa_s);
3586 return 0;
3587 }
3588
3589
3590 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
3591 const char *service)
3592 {
3593 struct p2p_srv_upnp *usrv;
3594
3595 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
3596 if (usrv == NULL)
3597 return -1;
3598 wpas_p2p_srv_upnp_free(usrv);
3599 wpas_p2p_sd_service_update(wpa_s);
3600 return 0;
3601 }
3602
3603
3604 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
3605 const u8 *peer, const char *params,
3606 unsigned int generated_pin)
3607 {
3608 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
3609 " %08d%s", MAC2STR(peer), generated_pin, params);
3610 }
3611
3612
3613 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
3614 const u8 *peer, const char *params)
3615 {
3616 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
3617 "%s", MAC2STR(peer), params);
3618 }
3619
3620
3621 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
3622 const u8 *dev_addr, const u8 *pri_dev_type,
3623 const char *dev_name, u16 supp_config_methods,
3624 u8 dev_capab, u8 group_capab, const u8 *group_id,
3625 size_t group_id_len)
3626 {
3627 struct wpa_supplicant *wpa_s = ctx;
3628 char devtype[WPS_DEV_TYPE_BUFSIZE];
3629 char params[300];
3630 u8 empty_dev_type[8];
3631 unsigned int generated_pin = 0;
3632 struct wpa_supplicant *group = NULL;
3633 int res;
3634
3635 if (group_id) {
3636 for (group = wpa_s->global->ifaces; group; group = group->next)
3637 {
3638 struct wpa_ssid *s = group->current_ssid;
3639 if (s != NULL &&
3640 s->mode == WPAS_MODE_P2P_GO &&
3641 group_id_len - ETH_ALEN == s->ssid_len &&
3642 os_memcmp(group_id + ETH_ALEN, s->ssid,
3643 s->ssid_len) == 0)
3644 break;
3645 }
3646 }
3647
3648 if (pri_dev_type == NULL) {
3649 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
3650 pri_dev_type = empty_dev_type;
3651 }
3652 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
3653 " pri_dev_type=%s name='%s' config_methods=0x%x "
3654 "dev_capab=0x%x group_capab=0x%x%s%s",
3655 MAC2STR(dev_addr),
3656 wps_dev_type_bin2str(pri_dev_type, devtype,
3657 sizeof(devtype)),
3658 dev_name, supp_config_methods, dev_capab, group_capab,
3659 group ? " group=" : "",
3660 group ? group->ifname : "");
3661 if (os_snprintf_error(sizeof(params), res))
3662 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
3663 params[sizeof(params) - 1] = '\0';
3664
3665 if (config_methods & WPS_CONFIG_DISPLAY) {
3666 generated_pin = wps_generate_pin();
3667 wpas_prov_disc_local_display(wpa_s, peer, params,
3668 generated_pin);
3669 } else if (config_methods & WPS_CONFIG_KEYPAD)
3670 wpas_prov_disc_local_keypad(wpa_s, peer, params);
3671 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
3672 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
3673 MACSTR "%s", MAC2STR(peer), params);
3674
3675 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
3676 P2P_PROV_DISC_SUCCESS,
3677 config_methods, generated_pin);
3678 }
3679
3680
3681 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
3682 {
3683 struct wpa_supplicant *wpa_s = ctx;
3684 unsigned int generated_pin = 0;
3685 char params[20];
3686
3687 if (wpa_s->pending_pd_before_join &&
3688 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
3689 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
3690 wpa_s->pending_pd_before_join = 0;
3691 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
3692 "join-existing-group operation");
3693 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
3694 return;
3695 }
3696
3697 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
3698 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
3699 int res;
3700
3701 res = os_snprintf(params, sizeof(params), " peer_go=%d",
3702 wpa_s->pending_pd_use == AUTO_PD_JOIN);
3703 if (os_snprintf_error(sizeof(params), res))
3704 params[sizeof(params) - 1] = '\0';
3705 } else
3706 params[0] = '\0';
3707
3708 if (config_methods & WPS_CONFIG_DISPLAY)
3709 wpas_prov_disc_local_keypad(wpa_s, peer, params);
3710 else if (config_methods & WPS_CONFIG_KEYPAD) {
3711 generated_pin = wps_generate_pin();
3712 wpas_prov_disc_local_display(wpa_s, peer, params,
3713 generated_pin);
3714 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
3715 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
3716 MACSTR "%s", MAC2STR(peer), params);
3717
3718 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
3719 P2P_PROV_DISC_SUCCESS,
3720 config_methods, generated_pin);
3721 }
3722
3723
3724 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
3725 enum p2p_prov_disc_status status,
3726 u32 adv_id, const u8 *adv_mac,
3727 const char *deferred_session_resp)
3728 {
3729 struct wpa_supplicant *wpa_s = ctx;
3730
3731 if (wpa_s->p2p_fallback_to_go_neg) {
3732 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
3733 "failed - fall back to GO Negotiation");
3734 wpa_msg_global(wpa_s->parent, MSG_INFO,
3735 P2P_EVENT_FALLBACK_TO_GO_NEG
3736 "reason=PD-failed");
3737 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
3738 return;
3739 }
3740
3741 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
3742 wpa_s->pending_pd_before_join = 0;
3743 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
3744 "join-existing-group operation (no ACK for PD "
3745 "Req attempts)");
3746 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
3747 return;
3748 }
3749
3750 if (adv_id && adv_mac && deferred_session_resp) {
3751 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3752 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
3753 " deferred_session_resp='%s'",
3754 MAC2STR(peer), status, adv_id,
3755 deferred_session_resp);
3756 } else if (adv_id && adv_mac) {
3757 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3758 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
3759 MAC2STR(peer), status, adv_id);
3760 } else {
3761 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3762 " p2p_dev_addr=" MACSTR " status=%d",
3763 MAC2STR(peer), status);
3764 }
3765
3766 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
3767 status, 0, 0);
3768 }
3769
3770
3771 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
3772 {
3773 if (channels == NULL)
3774 return 1; /* Assume no restrictions */
3775 return p2p_channels_includes_freq(channels, freq);
3776
3777 }
3778
3779
3780 /**
3781 * Pick the best frequency to use from all the currently used frequencies.
3782 */
3783 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
3784 struct wpa_used_freq_data *freqs,
3785 unsigned int num)
3786 {
3787 unsigned int i, c;
3788
3789 /* find a candidate freq that is supported by P2P */
3790 for (c = 0; c < num; c++)
3791 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
3792 break;
3793
3794 if (c == num)
3795 return 0;
3796
3797 /* once we have a candidate, try to find a 'better' one */
3798 for (i = c + 1; i < num; i++) {
3799 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
3800 continue;
3801
3802 /*
3803 * 1. Infrastructure station interfaces have higher preference.
3804 * 2. P2P Clients have higher preference.
3805 * 3. All others.
3806 */
3807 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
3808 c = i;
3809 break;
3810 }
3811
3812 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
3813 c = i;
3814 }
3815 return freqs[c].freq;
3816 }
3817
3818
3819 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
3820 const u8 *go_dev_addr, const u8 *ssid,
3821 size_t ssid_len, int *go, u8 *group_bssid,
3822 int *force_freq, int persistent_group,
3823 const struct p2p_channels *channels,
3824 int dev_pw_id)
3825 {
3826 struct wpa_supplicant *wpa_s = ctx;
3827 struct wpa_ssid *s;
3828 struct wpa_used_freq_data *freqs;
3829 struct wpa_supplicant *grp;
3830 int best_freq;
3831
3832 if (!persistent_group) {
3833 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3834 " to join an active group (SSID: %s)",
3835 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
3836 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3837 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
3838 == 0 ||
3839 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
3840 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
3841 "authorized invitation");
3842 goto accept_inv;
3843 }
3844
3845 #ifdef CONFIG_WPS_NFC
3846 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
3847 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
3848 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
3849 wpa_s->p2p_wps_method = WPS_NFC;
3850 wpa_s->pending_join_wps_method = WPS_NFC;
3851 os_memcpy(wpa_s->pending_join_dev_addr,
3852 go_dev_addr, ETH_ALEN);
3853 os_memcpy(wpa_s->pending_join_iface_addr,
3854 bssid, ETH_ALEN);
3855 goto accept_inv;
3856 }
3857 #endif /* CONFIG_WPS_NFC */
3858
3859 /*
3860 * Do not accept the invitation automatically; notify user and
3861 * request approval.
3862 */
3863 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3864 }
3865
3866 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
3867 if (grp) {
3868 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
3869 "running persistent group");
3870 if (*go)
3871 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
3872 goto accept_inv;
3873 }
3874
3875 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3876 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
3877 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
3878 "invitation to re-invoke a persistent group");
3879 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
3880 } else if (!wpa_s->conf->persistent_reconnect)
3881 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3882
3883 for (s = wpa_s->conf->ssid; s; s = s->next) {
3884 if (s->disabled == 2 &&
3885 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
3886 s->ssid_len == ssid_len &&
3887 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3888 break;
3889 }
3890
3891 if (!s) {
3892 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3893 " requested reinvocation of an unknown group",
3894 MAC2STR(sa));
3895 return P2P_SC_FAIL_UNKNOWN_GROUP;
3896 }
3897
3898 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
3899 *go = 1;
3900 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3901 wpa_printf(MSG_DEBUG, "P2P: The only available "
3902 "interface is already in use - reject "
3903 "invitation");
3904 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3905 }
3906 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
3907 } else if (s->mode == WPAS_MODE_P2P_GO) {
3908 *go = 1;
3909 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
3910 {
3911 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3912 "interface address for the group");
3913 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3914 }
3915 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
3916 ETH_ALEN);
3917 }
3918
3919 accept_inv:
3920 wpas_p2p_set_own_freq_preference(wpa_s, 0);
3921
3922 best_freq = 0;
3923 freqs = os_calloc(wpa_s->num_multichan_concurrent,
3924 sizeof(struct wpa_used_freq_data));
3925 if (freqs) {
3926 int num_channels = wpa_s->num_multichan_concurrent;
3927 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
3928 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
3929 os_free(freqs);
3930 }
3931
3932 /* Get one of the frequencies currently in use */
3933 if (best_freq > 0) {
3934 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
3935 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
3936
3937 if (wpa_s->num_multichan_concurrent < 2 ||
3938 wpas_p2p_num_unused_channels(wpa_s) < 1) {
3939 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
3940 *force_freq = best_freq;
3941 }
3942 }
3943
3944 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
3945 wpas_p2p_num_unused_channels(wpa_s) > 0) {
3946 if (*go == 0) {
3947 /* We are the client */
3948 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
3949 "running a GO but we are capable of MCC, "
3950 "figure out the best channel to use");
3951 *force_freq = 0;
3952 } else if (!freq_included(channels, *force_freq)) {
3953 /* We are the GO, and *force_freq is not in the
3954 * intersection */
3955 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3956 "in intersection but we are capable of MCC, "
3957 "figure out the best channel to use",
3958 *force_freq);
3959 *force_freq = 0;
3960 }
3961 }
3962
3963 return P2P_SC_SUCCESS;
3964 }
3965
3966
3967 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3968 const u8 *ssid, size_t ssid_len,
3969 const u8 *go_dev_addr, u8 status,
3970 int op_freq)
3971 {
3972 struct wpa_supplicant *wpa_s = ctx;
3973 struct wpa_ssid *s;
3974
3975 for (s = wpa_s->conf->ssid; s; s = s->next) {
3976 if (s->disabled == 2 &&
3977 s->ssid_len == ssid_len &&
3978 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3979 break;
3980 }
3981
3982 if (status == P2P_SC_SUCCESS) {
3983 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3984 " was accepted; op_freq=%d MHz, SSID=%s",
3985 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3986 if (s) {
3987 int go = s->mode == WPAS_MODE_P2P_GO;
3988 wpas_p2p_group_add_persistent(
3989 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
3990 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3991 } else if (bssid) {
3992 wpa_s->user_initiated_pd = 0;
3993 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3994 wpa_s->p2p_wps_method, 0, op_freq,
3995 ssid, ssid_len);
3996 }
3997 return;
3998 }
3999
4000 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
4001 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
4002 " was rejected (status %u)", MAC2STR(sa), status);
4003 return;
4004 }
4005
4006 if (!s) {
4007 if (bssid) {
4008 wpa_msg_global(wpa_s, MSG_INFO,
4009 P2P_EVENT_INVITATION_RECEIVED
4010 "sa=" MACSTR " go_dev_addr=" MACSTR
4011 " bssid=" MACSTR " unknown-network",
4012 MAC2STR(sa), MAC2STR(go_dev_addr),
4013 MAC2STR(bssid));
4014 } else {
4015 wpa_msg_global(wpa_s, MSG_INFO,
4016 P2P_EVENT_INVITATION_RECEIVED
4017 "sa=" MACSTR " go_dev_addr=" MACSTR
4018 " unknown-network",
4019 MAC2STR(sa), MAC2STR(go_dev_addr));
4020 }
4021 return;
4022 }
4023
4024 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
4025 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
4026 "sa=" MACSTR " persistent=%d freq=%d",
4027 MAC2STR(sa), s->id, op_freq);
4028 } else {
4029 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
4030 "sa=" MACSTR " persistent=%d",
4031 MAC2STR(sa), s->id);
4032 }
4033 }
4034
4035
4036 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
4037 struct wpa_ssid *ssid,
4038 const u8 *peer, int inv)
4039 {
4040 size_t i;
4041
4042 if (ssid == NULL)
4043 return;
4044
4045 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
4046 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
4047 ETH_ALEN) == 0)
4048 break;
4049 }
4050 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
4051 if (ssid->mode != WPAS_MODE_P2P_GO &&
4052 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
4053 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
4054 "due to invitation result", ssid->id);
4055 wpas_notify_network_removed(wpa_s, ssid);
4056 wpa_config_remove_network(wpa_s->conf, ssid->id);
4057 return;
4058 }
4059 return; /* Peer not found in client list */
4060 }
4061
4062 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
4063 "group %d client list%s",
4064 MAC2STR(peer), ssid->id,
4065 inv ? " due to invitation result" : "");
4066 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
4067 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
4068 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
4069 ssid->num_p2p_clients--;
4070 if (wpa_s->parent->conf->update_config &&
4071 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
4072 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
4073 }
4074
4075
4076 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
4077 const u8 *peer)
4078 {
4079 struct wpa_ssid *ssid;
4080
4081 wpa_s = wpa_s->global->p2p_invite_group;
4082 if (wpa_s == NULL)
4083 return; /* No known invitation group */
4084 ssid = wpa_s->current_ssid;
4085 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
4086 !ssid->p2p_persistent_group)
4087 return; /* Not operating as a GO in persistent group */
4088 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
4089 ssid->ssid, ssid->ssid_len);
4090 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
4091 }
4092
4093
4094 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
4095 const struct p2p_channels *channels,
4096 const u8 *peer, int neg_freq,
4097 int peer_oper_freq)
4098 {
4099 struct wpa_supplicant *wpa_s = ctx;
4100 struct wpa_ssid *ssid;
4101 int freq;
4102
4103 if (bssid) {
4104 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
4105 "status=%d " MACSTR,
4106 status, MAC2STR(bssid));
4107 } else {
4108 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
4109 "status=%d ", status);
4110 }
4111 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
4112
4113 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
4114 status, MAC2STR(peer));
4115 if (wpa_s->pending_invite_ssid_id == -1) {
4116 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
4117 wpas_remove_persistent_client(wpa_s, peer);
4118 return; /* Invitation to active group */
4119 }
4120
4121 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
4122 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
4123 "invitation exchange to indicate readiness for "
4124 "re-invocation");
4125 }
4126
4127 if (status != P2P_SC_SUCCESS) {
4128 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
4129 ssid = wpa_config_get_network(
4130 wpa_s->conf, wpa_s->pending_invite_ssid_id);
4131 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
4132 }
4133 wpas_p2p_remove_pending_group_interface(wpa_s);
4134 return;
4135 }
4136
4137 ssid = wpa_config_get_network(wpa_s->conf,
4138 wpa_s->pending_invite_ssid_id);
4139 if (ssid == NULL) {
4140 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
4141 "data matching with invitation");
4142 return;
4143 }
4144
4145 /*
4146 * The peer could have missed our ctrl::ack frame for Invitation
4147 * Response and continue retransmitting the frame. To reduce the
4148 * likelihood of the peer not getting successful TX status for the
4149 * Invitation Response frame, wait a short time here before starting
4150 * the persistent group so that we will remain on the current channel to
4151 * acknowledge any possible retransmission from the peer.
4152 */
4153 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
4154 "starting persistent group");
4155 os_sleep(0, 50000);
4156
4157 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
4158 freq_included(channels, neg_freq))
4159 freq = neg_freq;
4160 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
4161 freq_included(channels, peer_oper_freq))
4162 freq = peer_oper_freq;
4163 else
4164 freq = 0;
4165
4166 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
4167 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4168 wpas_p2p_group_add_persistent(wpa_s, ssid,
4169 ssid->mode == WPAS_MODE_P2P_GO,
4170 wpa_s->p2p_persistent_go_freq,
4171 freq,
4172 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
4173 channels,
4174 ssid->mode == WPAS_MODE_P2P_GO ?
4175 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4176 0);
4177 }
4178
4179
4180 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
4181 unsigned int freq)
4182 {
4183 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
4184 return 1;
4185 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
4186 }
4187
4188
4189 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
4190 {
4191 reg->channel[reg->channels] = chan;
4192 reg->channels++;
4193 }
4194
4195
4196 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
4197 struct p2p_channels *chan,
4198 struct p2p_channels *cli_chan)
4199 {
4200 int i, cla = 0;
4201
4202 wpa_s->global->p2p_24ghz_social_channels = 1;
4203
4204 os_memset(cli_chan, 0, sizeof(*cli_chan));
4205
4206 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
4207 "band");
4208
4209 /* Operating class 81 - 2.4 GHz band channels 1..13 */
4210 chan->reg_class[cla].reg_class = 81;
4211 chan->reg_class[cla].channels = 0;
4212 for (i = 0; i < 11; i++) {
4213 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
4214 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
4215 }
4216 if (chan->reg_class[cla].channels)
4217 cla++;
4218
4219 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
4220 "band");
4221
4222 /* Operating class 115 - 5 GHz, channels 36-48 */
4223 chan->reg_class[cla].reg_class = 115;
4224 chan->reg_class[cla].channels = 0;
4225 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
4226 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
4227 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
4228 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
4229 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
4230 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
4231 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
4232 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
4233 if (chan->reg_class[cla].channels)
4234 cla++;
4235
4236 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
4237 "band");
4238
4239 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
4240 chan->reg_class[cla].reg_class = 124;
4241 chan->reg_class[cla].channels = 0;
4242 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
4243 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
4244 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
4245 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
4246 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
4247 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
4248 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
4249 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
4250 if (chan->reg_class[cla].channels)
4251 cla++;
4252
4253 chan->reg_classes = cla;
4254 return 0;
4255 }
4256
4257
4258 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
4259 u16 num_modes,
4260 enum hostapd_hw_mode mode)
4261 {
4262 u16 i;
4263
4264 for (i = 0; i < num_modes; i++) {
4265 if (modes[i].mode == mode)
4266 return &modes[i];
4267 }
4268
4269 return NULL;
4270 }
4271
4272
4273 enum chan_allowed {
4274 NOT_ALLOWED, NO_IR, ALLOWED
4275 };
4276
4277 static int has_channel(struct wpa_global *global,
4278 struct hostapd_hw_modes *mode, u8 chan, int *flags)
4279 {
4280 int i;
4281 unsigned int freq;
4282
4283 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
4284 chan * 5;
4285 if (wpas_p2p_disallowed_freq(global, freq))
4286 return NOT_ALLOWED;
4287
4288 for (i = 0; i < mode->num_channels; i++) {
4289 if (mode->channels[i].chan == chan) {
4290 if (flags)
4291 *flags = mode->channels[i].flag;
4292 if (mode->channels[i].flag &
4293 (HOSTAPD_CHAN_DISABLED |
4294 HOSTAPD_CHAN_RADAR))
4295 return NOT_ALLOWED;
4296 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
4297 return NO_IR;
4298 return ALLOWED;
4299 }
4300 }
4301
4302 return NOT_ALLOWED;
4303 }
4304
4305
4306 struct p2p_oper_class_map {
4307 enum hostapd_hw_mode mode;
4308 u8 op_class;
4309 u8 min_chan;
4310 u8 max_chan;
4311 u8 inc;
4312 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
4313 };
4314
4315 static struct p2p_oper_class_map op_class[] = {
4316 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
4317 #if 0 /* Do not enable HT40 on 2 GHz for now */
4318 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
4319 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
4320 #endif
4321 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
4322 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
4323 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
4324 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
4325 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
4326 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
4327
4328 /*
4329 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
4330 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
4331 * 80 MHz, but currently use the following definition for simplicity
4332 * (these center frequencies are not actual channels, which makes
4333 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
4334 * removing invalid channels.
4335 */
4336 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
4337 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
4338 { -1, 0, 0, 0, 0, BW20 }
4339 };
4340
4341
4342 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
4343 struct hostapd_hw_modes *mode,
4344 u8 channel)
4345 {
4346 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
4347 unsigned int i;
4348
4349 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
4350 return 0;
4351
4352 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
4353 /*
4354 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
4355 * so the center channel is 6 channels away from the start/end.
4356 */
4357 if (channel >= center_channels[i] - 6 &&
4358 channel <= center_channels[i] + 6)
4359 return center_channels[i];
4360
4361 return 0;
4362 }
4363
4364
4365 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
4366 struct hostapd_hw_modes *mode,
4367 u8 channel, u8 bw)
4368 {
4369 u8 center_chan;
4370 int i, flags;
4371 enum chan_allowed res, ret = ALLOWED;
4372
4373 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
4374 if (!center_chan)
4375 return NOT_ALLOWED;
4376 if (center_chan >= 58 && center_chan <= 138)
4377 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
4378
4379 /* check all the channels are available */
4380 for (i = 0; i < 4; i++) {
4381 int adj_chan = center_chan - 6 + i * 4;
4382
4383 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
4384 if (res == NOT_ALLOWED)
4385 return NOT_ALLOWED;
4386 if (res == NO_IR)
4387 ret = NO_IR;
4388
4389 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
4390 return NOT_ALLOWED;
4391 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
4392 return NOT_ALLOWED;
4393 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
4394 return NOT_ALLOWED;
4395 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
4396 return NOT_ALLOWED;
4397 }
4398
4399 return ret;
4400 }
4401
4402
4403 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
4404 struct hostapd_hw_modes *mode,
4405 u8 channel, u8 bw)
4406 {
4407 int flag = 0;
4408 enum chan_allowed res, res2;
4409
4410 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
4411 if (bw == BW40MINUS) {
4412 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
4413 return NOT_ALLOWED;
4414 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
4415 } else if (bw == BW40PLUS) {
4416 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
4417 return NOT_ALLOWED;
4418 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
4419 } else if (bw == BW80) {
4420 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
4421 }
4422
4423 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
4424 return NOT_ALLOWED;
4425 if (res == NO_IR || res2 == NO_IR)
4426 return NO_IR;
4427 return res;
4428 }
4429
4430
4431 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
4432 struct p2p_channels *chan,
4433 struct p2p_channels *cli_chan)
4434 {
4435 struct hostapd_hw_modes *mode;
4436 int cla, op, cli_cla;
4437
4438 if (wpa_s->hw.modes == NULL) {
4439 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
4440 "of all supported channels; assume dualband "
4441 "support");
4442 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
4443 }
4444
4445 cla = cli_cla = 0;
4446
4447 for (op = 0; op_class[op].op_class; op++) {
4448 struct p2p_oper_class_map *o = &op_class[op];
4449 u8 ch;
4450 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
4451
4452 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
4453 if (mode == NULL)
4454 continue;
4455 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
4456 wpa_s->global->p2p_24ghz_social_channels = 1;
4457 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
4458 enum chan_allowed res;
4459 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
4460 if (res == ALLOWED) {
4461 if (reg == NULL) {
4462 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
4463 o->op_class);
4464 reg = &chan->reg_class[cla];
4465 cla++;
4466 reg->reg_class = o->op_class;
4467 }
4468 reg->channel[reg->channels] = ch;
4469 reg->channels++;
4470 } else if (res == NO_IR &&
4471 wpa_s->conf->p2p_add_cli_chan) {
4472 if (cli_reg == NULL) {
4473 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
4474 o->op_class);
4475 cli_reg = &cli_chan->reg_class[cli_cla];
4476 cli_cla++;
4477 cli_reg->reg_class = o->op_class;
4478 }
4479 cli_reg->channel[cli_reg->channels] = ch;
4480 cli_reg->channels++;
4481 }
4482 }
4483 if (reg) {
4484 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
4485 reg->channel, reg->channels);
4486 }
4487 if (cli_reg) {
4488 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
4489 cli_reg->channel, cli_reg->channels);
4490 }
4491 }
4492
4493 chan->reg_classes = cla;
4494 cli_chan->reg_classes = cli_cla;
4495
4496 return 0;
4497 }
4498
4499
4500 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
4501 struct hostapd_hw_modes *mode, u8 channel)
4502 {
4503 int op;
4504 enum chan_allowed ret;
4505
4506 for (op = 0; op_class[op].op_class; op++) {
4507 struct p2p_oper_class_map *o = &op_class[op];
4508 u8 ch;
4509
4510 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
4511 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
4512 o->bw == BW20 || ch != channel)
4513 continue;
4514 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
4515 if (ret == ALLOWED)
4516 return (o->bw == BW40MINUS) ? -1 : 1;
4517 }
4518 }
4519 return 0;
4520 }
4521
4522
4523 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
4524 struct hostapd_hw_modes *mode, u8 channel)
4525 {
4526 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
4527 return 0;
4528
4529 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
4530 }
4531
4532
4533 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
4534 size_t buf_len)
4535 {
4536 struct wpa_supplicant *wpa_s = ctx;
4537
4538 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4539 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
4540 break;
4541 }
4542 if (wpa_s == NULL)
4543 return -1;
4544
4545 return wpa_drv_get_noa(wpa_s, buf, buf_len);
4546 }
4547
4548
4549 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
4550 const u8 *ssid, size_t ssid_len)
4551 {
4552 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4553 struct wpa_ssid *s = wpa_s->current_ssid;
4554 if (s == NULL)
4555 continue;
4556 if (s->mode != WPAS_MODE_P2P_GO &&
4557 s->mode != WPAS_MODE_AP &&
4558 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
4559 continue;
4560 if (s->ssid_len != ssid_len ||
4561 os_memcmp(ssid, s->ssid, ssid_len) != 0)
4562 continue;
4563 return wpa_s;
4564 }
4565
4566 return NULL;
4567
4568 }
4569
4570
4571 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
4572 const u8 *peer_dev_addr)
4573 {
4574 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4575 struct wpa_ssid *ssid = wpa_s->current_ssid;
4576 if (ssid == NULL)
4577 continue;
4578 if (ssid->mode != WPAS_MODE_INFRA)
4579 continue;
4580 if (wpa_s->wpa_state != WPA_COMPLETED &&
4581 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
4582 continue;
4583 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
4584 return wpa_s;
4585 }
4586
4587 return NULL;
4588 }
4589
4590
4591 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
4592 {
4593 struct wpa_supplicant *wpa_s = ctx;
4594
4595 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
4596 }
4597
4598
4599 static int wpas_is_concurrent_session_active(void *ctx)
4600 {
4601 struct wpa_supplicant *wpa_s = ctx;
4602 struct wpa_supplicant *ifs;
4603
4604 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
4605 if (ifs == wpa_s)
4606 continue;
4607 if (ifs->wpa_state > WPA_ASSOCIATED)
4608 return 1;
4609 }
4610 return 0;
4611 }
4612
4613
4614 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
4615 {
4616 struct wpa_supplicant *wpa_s = ctx;
4617 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
4618 }
4619
4620
4621 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
4622 const char *conf_p2p_dev)
4623 {
4624 struct wpa_interface iface;
4625 struct wpa_supplicant *p2pdev_wpa_s;
4626 char ifname[100];
4627 char force_name[100];
4628 int ret;
4629
4630 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
4631 wpa_s->ifname);
4632 if (os_snprintf_error(sizeof(ifname), ret))
4633 return -1;
4634 force_name[0] = '\0';
4635 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
4636 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
4637 force_name, wpa_s->pending_interface_addr, NULL);
4638 if (ret < 0) {
4639 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
4640 return ret;
4641 }
4642 os_strlcpy(wpa_s->pending_interface_name, ifname,
4643 sizeof(wpa_s->pending_interface_name));
4644
4645 os_memset(&iface, 0, sizeof(iface));
4646 iface.p2p_mgmt = 1;
4647 iface.ifname = wpa_s->pending_interface_name;
4648 iface.driver = wpa_s->driver->name;
4649 iface.driver_param = wpa_s->conf->driver_param;
4650
4651 /*
4652 * If a P2P Device configuration file was given, use it as the interface
4653 * configuration file (instead of using parent's configuration file.
4654 */
4655 if (conf_p2p_dev) {
4656 iface.confname = conf_p2p_dev;
4657 iface.ctrl_interface = NULL;
4658 } else {
4659 iface.confname = wpa_s->confname;
4660 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
4661 }
4662 iface.conf_p2p_dev = NULL;
4663
4664 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
4665 if (!p2pdev_wpa_s) {
4666 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
4667 return -1;
4668 }
4669 p2pdev_wpa_s->parent = wpa_s;
4670 wpa_s->p2p_dev = p2pdev_wpa_s;
4671
4672 wpa_s->pending_interface_name[0] = '\0';
4673 return 0;
4674 }
4675
4676
4677 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
4678 const u8 *noa, size_t noa_len)
4679 {
4680 struct wpa_supplicant *wpa_s, *intf = ctx;
4681 char hex[100];
4682
4683 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4684 if (wpa_s->waiting_presence_resp)
4685 break;
4686 }
4687 if (!wpa_s) {
4688 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
4689 return;
4690 }
4691 wpa_s->waiting_presence_resp = 0;
4692
4693 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
4694 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
4695 " status=%u noa=%s", MAC2STR(src), status, hex);
4696 }
4697
4698
4699 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
4700 size_t ssid_len, u8 *go_dev_addr,
4701 u8 *ret_ssid, size_t *ret_ssid_len)
4702 {
4703 struct wpa_supplicant *wpa_s = ctx;
4704 struct wpa_ssid *s;
4705
4706 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
4707 if (s) {
4708 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
4709 *ret_ssid_len = s->ssid_len;
4710 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
4711 return 1;
4712 }
4713
4714 return 0;
4715 }
4716
4717
4718 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
4719 u8 *ssid, size_t *ssid_len, int *group_iface)
4720 {
4721 struct wpa_supplicant *wpa_s = ctx;
4722 struct wpa_ssid *s;
4723 u8 bssid[ETH_ALEN];
4724
4725 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
4726 if (!s) {
4727 s = wpas_p2p_get_persistent_go(wpa_s);
4728 if (s)
4729 os_memcpy(bssid, s->bssid, ETH_ALEN);
4730 }
4731
4732 *group_iface = wpas_p2p_create_iface(wpa_s);
4733 if (!s)
4734 return 0;
4735
4736 os_memcpy(intended_addr, bssid, ETH_ALEN);
4737 os_memcpy(ssid, s->ssid, s->ssid_len);
4738 *ssid_len = s->ssid_len;
4739
4740 return 1;
4741 }
4742
4743
4744 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
4745 const u8 *ssid, size_t ssid_len)
4746 {
4747 struct wpa_supplicant *wpa_s = ctx;
4748 struct wpa_ssid *s;
4749 int save_config = 0;
4750 size_t i;
4751
4752 /* Start with our first choice of Persistent Groups */
4753 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
4754 if (go && ssid && ssid_len &&
4755 s->ssid_len == ssid_len &&
4756 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
4757 os_memcmp(ssid, s->ssid, ssid_len) == 0)
4758 break;
4759
4760 /* Remove stale persistent group */
4761 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
4762 wpa_config_remove_network(wpa_s->conf, s->id);
4763 save_config = 1;
4764 continue;
4765 }
4766
4767 for (i = 0; i < s->num_p2p_clients; i++) {
4768 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
4769 peer, ETH_ALEN) != 0)
4770 continue;
4771
4772 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
4773 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
4774 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
4775 break;
4776 }
4777 s->num_p2p_clients--;
4778 save_config = 1;
4779 }
4780
4781 if (save_config)
4782 p2p_config_write(wpa_s);
4783
4784 /* Return TRUE if valid SSID remains */
4785 return s != NULL;
4786 }
4787
4788
4789 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
4790 const u8 *adv_mac, const u8 *ses_mac,
4791 const u8 *grp_mac, u32 adv_id, u32 ses_id,
4792 u8 conncap, int passwd_id,
4793 const u8 *persist_ssid,
4794 size_t persist_ssid_size, int response_done,
4795 int prov_start, const char *session_info)
4796 {
4797 struct wpa_supplicant *wpa_s = ctx;
4798 u8 mac[ETH_ALEN];
4799 struct wpa_ssid *persistent_go, *stale, *s;
4800 int save_config = 0;
4801 struct wpa_supplicant *go_wpa_s;
4802
4803 if (!dev)
4804 return;
4805
4806 os_memset(mac, 0, ETH_ALEN);
4807 if (!adv_mac)
4808 adv_mac = mac;
4809 if (!ses_mac)
4810 ses_mac = mac;
4811 if (!grp_mac)
4812 grp_mac = mac;
4813
4814 if (prov_start) {
4815 if (session_info == NULL) {
4816 wpa_msg_global(wpa_s, MSG_INFO,
4817 P2P_EVENT_P2PS_PROVISION_START MACSTR
4818 " adv_id=%x conncap=%x"
4819 " adv_mac=" MACSTR
4820 " session=%x mac=" MACSTR
4821 " dev_passwd_id=%d",
4822 MAC2STR(dev), adv_id, conncap,
4823 MAC2STR(adv_mac),
4824 ses_id, MAC2STR(ses_mac),
4825 passwd_id);
4826 } else {
4827 wpa_msg_global(wpa_s, MSG_INFO,
4828 P2P_EVENT_P2PS_PROVISION_START MACSTR
4829 " adv_id=%x conncap=%x"
4830 " adv_mac=" MACSTR
4831 " session=%x mac=" MACSTR
4832 " dev_passwd_id=%d info='%s'",
4833 MAC2STR(dev), adv_id, conncap,
4834 MAC2STR(adv_mac),
4835 ses_id, MAC2STR(ses_mac),
4836 passwd_id, session_info);
4837 }
4838 return;
4839 }
4840
4841 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4842 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4843
4844 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4845 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4846 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4847
4848 if (persistent_go && !persistent_go->num_p2p_clients) {
4849 /* remove empty persistent GO */
4850 wpa_config_remove_network(wpa_s->conf,
4851 persistent_go->id);
4852 }
4853
4854 wpa_msg_global(wpa_s, MSG_INFO,
4855 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4856 " status=%d"
4857 " adv_id=%x adv_mac=" MACSTR
4858 " session=%x mac=" MACSTR,
4859 MAC2STR(dev), status,
4860 adv_id, MAC2STR(adv_mac),
4861 ses_id, MAC2STR(ses_mac));
4862 return;
4863 }
4864
4865 /* Clean up stale persistent groups with this device */
4866 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4867 persist_ssid_size);
4868 for (;;) {
4869 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4870 if (!stale)
4871 break;
4872
4873 if (s && s->ssid_len == stale->ssid_len &&
4874 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4875 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4876 break;
4877
4878 /* Remove stale persistent group */
4879 if (stale->mode != WPAS_MODE_P2P_GO ||
4880 stale->num_p2p_clients <= 1) {
4881 wpa_config_remove_network(wpa_s->conf, stale->id);
4882 } else {
4883 size_t i;
4884
4885 for (i = 0; i < stale->num_p2p_clients; i++) {
4886 if (os_memcmp(stale->p2p_client_list +
4887 i * ETH_ALEN,
4888 dev, ETH_ALEN) == 0) {
4889 os_memmove(stale->p2p_client_list +
4890 i * ETH_ALEN,
4891 stale->p2p_client_list +
4892 (i + 1) * ETH_ALEN,
4893 (stale->num_p2p_clients -
4894 i - 1) * ETH_ALEN);
4895 break;
4896 }
4897 }
4898 stale->num_p2p_clients--;
4899 }
4900 save_config = 1;
4901 }
4902
4903 if (save_config)
4904 p2p_config_write(wpa_s);
4905
4906 if (s) {
4907 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4908 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4909
4910 if (persistent_go && s != persistent_go &&
4911 !persistent_go->num_p2p_clients) {
4912 /* remove empty persistent GO */
4913 wpa_config_remove_network(wpa_s->conf,
4914 persistent_go->id);
4915 /* Save config */
4916 }
4917
4918 wpa_msg_global(wpa_s, MSG_INFO,
4919 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4920 " status=%d"
4921 " adv_id=%x adv_mac=" MACSTR
4922 " session=%x mac=" MACSTR
4923 " persist=%d",
4924 MAC2STR(dev), status,
4925 adv_id, MAC2STR(adv_mac),
4926 ses_id, MAC2STR(ses_mac), s->id);
4927 return;
4928 }
4929
4930 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4931 const char *go_ifname = NULL;
4932 if (!go_wpa_s) {
4933 wpa_s->global->pending_p2ps_group = 1;
4934
4935 if (wpa_s->conf->p2p_no_group_iface)
4936 go_ifname = wpa_s->ifname;
4937 else if (wpa_s->pending_interface_name[0])
4938 go_ifname = wpa_s->pending_interface_name;
4939
4940 if (!go_ifname) {
4941 wpas_p2ps_prov_complete(
4942 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4943 dev, adv_mac, ses_mac,
4944 NULL, adv_id, ses_id, 0, 0,
4945 NULL, 0, 0, 0, NULL);
4946 return;
4947 }
4948
4949 /* If PD Resp complete, start up the GO */
4950 if (response_done && persistent_go) {
4951 wpas_p2p_group_add_persistent(
4952 wpa_s, persistent_go,
4953 0, 0, 0, 0, 0, NULL,
4954 persistent_go->mode ==
4955 WPAS_MODE_P2P_GO ?
4956 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4957 0);
4958 } else if (response_done) {
4959 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
4960 }
4961
4962 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4963 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
4964 wpa_s->p2ps_join_addr_valid = 1;
4965 wpa_dbg(wpa_s, MSG_DEBUG,
4966 "P2PS: Saving PIN for " MACSTR,
4967 MAC2STR(dev));
4968 }
4969 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4970 go_ifname = go_wpa_s->ifname;
4971
4972 wpa_dbg(go_wpa_s, MSG_DEBUG,
4973 "P2P: Setting PIN-1 For " MACSTR, MAC2STR(dev));
4974 wpa_supplicant_ap_wps_pin(go_wpa_s, dev, "12345670",
4975 NULL, 0, 0);
4976
4977 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
4978 wpa_s->p2ps_join_addr_valid = 1;
4979 wpa_dbg(wpa_s, MSG_DEBUG,
4980 "P2PS: Saving PIN for " MACSTR, MAC2STR(dev));
4981 }
4982
4983 wpa_msg_global(wpa_s, MSG_INFO,
4984 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4985 " status=%d conncap=%x"
4986 " adv_id=%x adv_mac=" MACSTR
4987 " session=%x mac=" MACSTR
4988 " dev_passwd_id=%d go=%s",
4989 MAC2STR(dev), status, conncap,
4990 adv_id, MAC2STR(adv_mac),
4991 ses_id, MAC2STR(ses_mac),
4992 passwd_id, go_ifname);
4993 return;
4994 }
4995
4996 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4997 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4998
4999 if (persistent_go && !persistent_go->num_p2p_clients) {
5000 /* remove empty persistent GO */
5001 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
5002 }
5003
5004 if (conncap == P2PS_SETUP_CLIENT) {
5005 wpa_msg_global(wpa_s, MSG_INFO,
5006 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
5007 " status=%d conncap=%x"
5008 " adv_id=%x adv_mac=" MACSTR
5009 " session=%x mac=" MACSTR
5010 " dev_passwd_id=%d join=" MACSTR,
5011 MAC2STR(dev), status, conncap,
5012 adv_id, MAC2STR(adv_mac),
5013 ses_id, MAC2STR(ses_mac),
5014 passwd_id, MAC2STR(grp_mac));
5015 } else {
5016 wpa_msg_global(wpa_s, MSG_INFO,
5017 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
5018 " status=%d conncap=%x"
5019 " adv_id=%x adv_mac=" MACSTR
5020 " session=%x mac=" MACSTR
5021 " dev_passwd_id=%d",
5022 MAC2STR(dev), status, conncap,
5023 adv_id, MAC2STR(adv_mac),
5024 ses_id, MAC2STR(ses_mac),
5025 passwd_id);
5026 }
5027 }
5028
5029
5030 static int _wpas_p2p_in_progress(void *ctx)
5031 {
5032 struct wpa_supplicant *wpa_s = ctx;
5033 return wpas_p2p_in_progress(wpa_s);
5034 }
5035
5036
5037 static int wpas_prov_disc_resp_cb(void *ctx)
5038 {
5039 struct wpa_supplicant *wpa_s = ctx;
5040 struct wpa_ssid *persistent_go;
5041
5042 if (!wpa_s->global->pending_p2ps_group)
5043 return 0;
5044
5045 wpa_s->global->pending_p2ps_group = 0;
5046
5047 if (wpas_p2p_get_go_group(wpa_s))
5048 return 0;
5049 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
5050
5051 if (persistent_go) {
5052 wpas_p2p_group_add_persistent(
5053 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
5054 persistent_go->mode == WPAS_MODE_P2P_GO ?
5055 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
5056 } else {
5057 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
5058 }
5059
5060 return 1;
5061 }
5062
5063
5064 /**
5065 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
5066 * @global: Pointer to global data from wpa_supplicant_init()
5067 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5068 * Returns: 0 on success, -1 on failure
5069 */
5070 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
5071 {
5072 struct p2p_config p2p;
5073 int i;
5074
5075 if (wpa_s->conf->p2p_disabled)
5076 return 0;
5077
5078 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
5079 return 0;
5080
5081 if (global->p2p)
5082 return 0;
5083
5084 os_memset(&p2p, 0, sizeof(p2p));
5085 p2p.cb_ctx = wpa_s;
5086 p2p.debug_print = wpas_p2p_debug_print;
5087 p2p.p2p_scan = wpas_p2p_scan;
5088 p2p.send_action = wpas_send_action;
5089 p2p.send_action_done = wpas_send_action_done;
5090 p2p.go_neg_completed = wpas_go_neg_completed;
5091 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
5092 p2p.dev_found = wpas_dev_found;
5093 p2p.dev_lost = wpas_dev_lost;
5094 p2p.find_stopped = wpas_find_stopped;
5095 p2p.start_listen = wpas_start_listen;
5096 p2p.stop_listen = wpas_stop_listen;
5097 p2p.send_probe_resp = wpas_send_probe_resp;
5098 p2p.sd_request = wpas_sd_request;
5099 p2p.sd_response = wpas_sd_response;
5100 p2p.prov_disc_req = wpas_prov_disc_req;
5101 p2p.prov_disc_resp = wpas_prov_disc_resp;
5102 p2p.prov_disc_fail = wpas_prov_disc_fail;
5103 p2p.invitation_process = wpas_invitation_process;
5104 p2p.invitation_received = wpas_invitation_received;
5105 p2p.invitation_result = wpas_invitation_result;
5106 p2p.get_noa = wpas_get_noa;
5107 p2p.go_connected = wpas_go_connected;
5108 p2p.presence_resp = wpas_presence_resp;
5109 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
5110 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
5111 p2p.get_persistent_group = wpas_get_persistent_group;
5112 p2p.get_go_info = wpas_get_go_info;
5113 p2p.remove_stale_groups = wpas_remove_stale_groups;
5114 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
5115 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
5116 p2p.p2ps_group_capability = p2ps_group_capability;
5117
5118 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
5119 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
5120 p2p.dev_name = wpa_s->conf->device_name;
5121 p2p.manufacturer = wpa_s->conf->manufacturer;
5122 p2p.model_name = wpa_s->conf->model_name;
5123 p2p.model_number = wpa_s->conf->model_number;
5124 p2p.serial_number = wpa_s->conf->serial_number;
5125 if (wpa_s->wps) {
5126 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
5127 p2p.config_methods = wpa_s->wps->config_methods;
5128 }
5129
5130 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
5131 wpa_printf(MSG_ERROR,
5132 "P2P: Failed to configure supported channel list");
5133 return -1;
5134 }
5135
5136 if (wpa_s->conf->p2p_listen_reg_class &&
5137 wpa_s->conf->p2p_listen_channel) {
5138 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
5139 p2p.channel = wpa_s->conf->p2p_listen_channel;
5140 p2p.channel_forced = 1;
5141 } else {
5142 /*
5143 * Pick one of the social channels randomly as the listen
5144 * channel.
5145 */
5146 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
5147 &p2p.channel) != 0) {
5148 wpa_printf(MSG_ERROR,
5149 "P2P: Failed to select random social channel as listen channel");
5150 return -1;
5151 }
5152 p2p.channel_forced = 0;
5153 }
5154 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
5155 p2p.reg_class, p2p.channel);
5156
5157 if (wpa_s->conf->p2p_oper_reg_class &&
5158 wpa_s->conf->p2p_oper_channel) {
5159 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
5160 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
5161 p2p.cfg_op_channel = 1;
5162 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
5163 "%d:%d", p2p.op_reg_class, p2p.op_channel);
5164
5165 } else {
5166 /*
5167 * Use random operation channel from 2.4 GHz band social
5168 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
5169 * other preference is indicated.
5170 */
5171 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
5172 &p2p.op_channel) != 0) {
5173 wpa_printf(MSG_ERROR,
5174 "P2P: Failed to select random social channel as operation channel");
5175 return -1;
5176 }
5177 p2p.cfg_op_channel = 0;
5178 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
5179 "%d:%d", p2p.op_reg_class, p2p.op_channel);
5180 }
5181
5182 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
5183 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
5184 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
5185 }
5186
5187 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5188 os_memcpy(p2p.country, wpa_s->conf->country, 2);
5189 p2p.country[2] = 0x04;
5190 } else
5191 os_memcpy(p2p.country, "XX\x04", 3);
5192
5193 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
5194 WPS_DEV_TYPE_LEN);
5195
5196 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
5197 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
5198 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
5199
5200 p2p.concurrent_operations = !!(wpa_s->drv_flags &
5201 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
5202
5203 p2p.max_peers = 100;
5204
5205 if (wpa_s->conf->p2p_ssid_postfix) {
5206 p2p.ssid_postfix_len =
5207 os_strlen(wpa_s->conf->p2p_ssid_postfix);
5208 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
5209 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
5210 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
5211 p2p.ssid_postfix_len);
5212 }
5213
5214 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
5215
5216 p2p.max_listen = wpa_s->max_remain_on_chan;
5217
5218 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
5219 wpa_s->conf->p2p_passphrase_len <= 63)
5220 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
5221 else
5222 p2p.passphrase_len = 8;
5223
5224 global->p2p = p2p_init(&p2p);
5225 if (global->p2p == NULL)
5226 return -1;
5227 global->p2p_init_wpa_s = wpa_s;
5228
5229 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
5230 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
5231 continue;
5232 p2p_add_wps_vendor_extension(
5233 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
5234 }
5235
5236 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
5237
5238 return 0;
5239 }
5240
5241
5242 /**
5243 * wpas_p2p_deinit - Deinitialize per-interface P2P data
5244 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5245 *
5246 * This function deinitialize per-interface P2P data.
5247 */
5248 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
5249 {
5250 if (wpa_s->driver && wpa_s->drv_priv)
5251 wpa_drv_probe_req_report(wpa_s, 0);
5252
5253 if (wpa_s->go_params) {
5254 /* Clear any stored provisioning info */
5255 p2p_clear_provisioning_info(
5256 wpa_s->global->p2p,
5257 wpa_s->go_params->peer_device_addr);
5258 }
5259
5260 os_free(wpa_s->go_params);
5261 wpa_s->go_params = NULL;
5262 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
5263 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5264 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5265 wpa_s->p2p_long_listen = 0;
5266 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5267 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5268 wpas_p2p_remove_pending_group_interface(wpa_s);
5269 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
5270 wpas_p2p_listen_work_done(wpa_s);
5271 if (wpa_s->p2p_send_action_work) {
5272 os_free(wpa_s->p2p_send_action_work->ctx);
5273 radio_work_done(wpa_s->p2p_send_action_work);
5274 wpa_s->p2p_send_action_work = NULL;
5275 }
5276 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
5277
5278 wpabuf_free(wpa_s->p2p_oob_dev_pw);
5279 wpa_s->p2p_oob_dev_pw = NULL;
5280
5281 os_free(wpa_s->p2p_group_common_freqs);
5282 wpa_s->p2p_group_common_freqs = NULL;
5283 wpa_s->p2p_group_common_freqs_num = 0;
5284
5285 /* TODO: remove group interface from the driver if this wpa_s instance
5286 * is on top of a P2P group interface */
5287 }
5288
5289
5290 /**
5291 * wpas_p2p_deinit_global - Deinitialize global P2P module
5292 * @global: Pointer to global data from wpa_supplicant_init()
5293 *
5294 * This function deinitializes the global (per device) P2P module.
5295 */
5296 static void wpas_p2p_deinit_global(struct wpa_global *global)
5297 {
5298 struct wpa_supplicant *wpa_s, *tmp;
5299
5300 wpa_s = global->ifaces;
5301
5302 wpas_p2p_service_flush(global->p2p_init_wpa_s);
5303
5304 /* Remove remaining P2P group interfaces */
5305 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
5306 wpa_s = wpa_s->next;
5307 while (wpa_s) {
5308 tmp = global->ifaces;
5309 while (tmp &&
5310 (tmp == wpa_s ||
5311 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
5312 tmp = tmp->next;
5313 }
5314 if (tmp == NULL)
5315 break;
5316 /* Disconnect from the P2P group and deinit the interface */
5317 wpas_p2p_disconnect(tmp);
5318 }
5319
5320 /*
5321 * Deinit GO data on any possibly remaining interface (if main
5322 * interface is used as GO).
5323 */
5324 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5325 if (wpa_s->ap_iface)
5326 wpas_p2p_group_deinit(wpa_s);
5327 }
5328
5329 p2p_deinit(global->p2p);
5330 global->p2p = NULL;
5331 global->p2p_init_wpa_s = NULL;
5332 }
5333
5334
5335 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
5336 {
5337 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5338 wpa_s->conf->p2p_no_group_iface)
5339 return 0; /* separate interface disabled per configuration */
5340 if (wpa_s->drv_flags &
5341 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
5342 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
5343 return 1; /* P2P group requires a new interface in every case
5344 */
5345 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
5346 return 0; /* driver does not support concurrent operations */
5347 if (wpa_s->global->ifaces->next)
5348 return 1; /* more that one interface already in use */
5349 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
5350 return 1; /* this interface is already in use */
5351 return 0;
5352 }
5353
5354
5355 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
5356 const u8 *peer_addr,
5357 enum p2p_wps_method wps_method,
5358 int go_intent, const u8 *own_interface_addr,
5359 unsigned int force_freq, int persistent_group,
5360 struct wpa_ssid *ssid, unsigned int pref_freq)
5361 {
5362 if (persistent_group && wpa_s->conf->persistent_reconnect)
5363 persistent_group = 2;
5364
5365 /*
5366 * Increase GO config timeout if HT40 is used since it takes some time
5367 * to scan channels for coex purposes before the BSS can be started.
5368 */
5369 p2p_set_config_timeout(wpa_s->global->p2p,
5370 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
5371
5372 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
5373 go_intent, own_interface_addr, force_freq,
5374 persistent_group, ssid ? ssid->ssid : NULL,
5375 ssid ? ssid->ssid_len : 0,
5376 wpa_s->p2p_pd_before_go_neg, pref_freq,
5377 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
5378 0);
5379 }
5380
5381
5382 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
5383 const u8 *peer_addr,
5384 enum p2p_wps_method wps_method,
5385 int go_intent, const u8 *own_interface_addr,
5386 unsigned int force_freq, int persistent_group,
5387 struct wpa_ssid *ssid, unsigned int pref_freq)
5388 {
5389 if (persistent_group && wpa_s->conf->persistent_reconnect)
5390 persistent_group = 2;
5391
5392 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
5393 go_intent, own_interface_addr, force_freq,
5394 persistent_group, ssid ? ssid->ssid : NULL,
5395 ssid ? ssid->ssid_len : 0, pref_freq,
5396 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
5397 0);
5398 }
5399
5400
5401 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
5402 {
5403 wpa_s->p2p_join_scan_count++;
5404 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
5405 wpa_s->p2p_join_scan_count);
5406 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
5407 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
5408 " for join operationg - stop join attempt",
5409 MAC2STR(wpa_s->pending_join_iface_addr));
5410 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5411 if (wpa_s->p2p_auto_pd) {
5412 wpa_s->p2p_auto_pd = 0;
5413 wpa_msg_global(wpa_s, MSG_INFO,
5414 P2P_EVENT_PROV_DISC_FAILURE
5415 " p2p_dev_addr=" MACSTR " status=N/A",
5416 MAC2STR(wpa_s->pending_join_dev_addr));
5417 return;
5418 }
5419 wpa_msg_global(wpa_s->parent, MSG_INFO,
5420 P2P_EVENT_GROUP_FORMATION_FAILURE);
5421 }
5422 }
5423
5424
5425 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
5426 {
5427 int res;
5428 unsigned int num, i;
5429 struct wpa_used_freq_data *freqs;
5430
5431 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
5432 /* Multiple channels are supported and not all are in use */
5433 return 0;
5434 }
5435
5436 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5437 sizeof(struct wpa_used_freq_data));
5438 if (!freqs)
5439 return 1;
5440
5441 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5442 wpa_s->num_multichan_concurrent);
5443
5444 for (i = 0; i < num; i++) {
5445 if (freqs[i].freq == freq) {
5446 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
5447 freq);
5448 res = 0;
5449 goto exit_free;
5450 }
5451 }
5452
5453 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
5454 res = 1;
5455
5456 exit_free:
5457 os_free(freqs);
5458 return res;
5459 }
5460
5461
5462 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
5463 const u8 *peer_dev_addr)
5464 {
5465 struct wpa_bss *bss;
5466 int updated;
5467
5468 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
5469 if (bss == NULL)
5470 return -1;
5471 if (bss->last_update_idx < wpa_s->bss_update_idx) {
5472 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
5473 "last scan");
5474 return 0;
5475 }
5476
5477 updated = os_reltime_before(&wpa_s->p2p_auto_started,
5478 &bss->last_update);
5479 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
5480 "%ld.%06ld (%supdated in last scan)",
5481 bss->last_update.sec, bss->last_update.usec,
5482 updated ? "": "not ");
5483
5484 return updated;
5485 }
5486
5487
5488 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
5489 struct wpa_scan_results *scan_res)
5490 {
5491 struct wpa_bss *bss = NULL;
5492 int freq;
5493 u8 iface_addr[ETH_ALEN];
5494
5495 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5496
5497 if (wpa_s->global->p2p_disabled)
5498 return;
5499
5500 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
5501 scan_res ? (int) scan_res->num : -1,
5502 wpa_s->p2p_auto_join ? "auto_" : "");
5503
5504 if (scan_res)
5505 wpas_p2p_scan_res_handler(wpa_s, scan_res);
5506
5507 if (wpa_s->p2p_auto_pd) {
5508 int join = wpas_p2p_peer_go(wpa_s,
5509 wpa_s->pending_join_dev_addr);
5510 if (join == 0 &&
5511 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
5512 wpa_s->auto_pd_scan_retry++;
5513 bss = wpa_bss_get_bssid_latest(
5514 wpa_s, wpa_s->pending_join_dev_addr);
5515 if (bss) {
5516 freq = bss->freq;
5517 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
5518 "the peer " MACSTR " at %d MHz",
5519 wpa_s->auto_pd_scan_retry,
5520 MAC2STR(wpa_s->
5521 pending_join_dev_addr),
5522 freq);
5523 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
5524 return;
5525 }
5526 }
5527
5528 if (join < 0)
5529 join = 0;
5530
5531 wpa_s->p2p_auto_pd = 0;
5532 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
5533 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
5534 MAC2STR(wpa_s->pending_join_dev_addr), join);
5535 if (p2p_prov_disc_req(wpa_s->global->p2p,
5536 wpa_s->pending_join_dev_addr, NULL,
5537 wpa_s->pending_pd_config_methods, join,
5538 0, wpa_s->user_initiated_pd) < 0) {
5539 wpa_s->p2p_auto_pd = 0;
5540 wpa_msg_global(wpa_s, MSG_INFO,
5541 P2P_EVENT_PROV_DISC_FAILURE
5542 " p2p_dev_addr=" MACSTR " status=N/A",
5543 MAC2STR(wpa_s->pending_join_dev_addr));
5544 }
5545 return;
5546 }
5547
5548 if (wpa_s->p2p_auto_join) {
5549 int join = wpas_p2p_peer_go(wpa_s,
5550 wpa_s->pending_join_dev_addr);
5551 if (join < 0) {
5552 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
5553 "running a GO -> use GO Negotiation");
5554 wpa_msg_global(wpa_s->parent, MSG_INFO,
5555 P2P_EVENT_FALLBACK_TO_GO_NEG
5556 "reason=peer-not-running-GO");
5557 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
5558 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
5559 wpa_s->p2p_persistent_group, 0, 0, 0,
5560 wpa_s->p2p_go_intent,
5561 wpa_s->p2p_connect_freq,
5562 wpa_s->p2p_persistent_id,
5563 wpa_s->p2p_pd_before_go_neg,
5564 wpa_s->p2p_go_ht40,
5565 wpa_s->p2p_go_vht);
5566 return;
5567 }
5568
5569 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
5570 "try to join the group", join ? "" :
5571 " in older scan");
5572 if (!join) {
5573 wpa_msg_global(wpa_s->parent, MSG_INFO,
5574 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
5575 wpa_s->p2p_fallback_to_go_neg = 1;
5576 }
5577 }
5578
5579 freq = p2p_get_oper_freq(wpa_s->global->p2p,
5580 wpa_s->pending_join_iface_addr);
5581 if (freq < 0 &&
5582 p2p_get_interface_addr(wpa_s->global->p2p,
5583 wpa_s->pending_join_dev_addr,
5584 iface_addr) == 0 &&
5585 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
5586 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
5587 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
5588 "address for join from " MACSTR " to " MACSTR
5589 " based on newly discovered P2P peer entry",
5590 MAC2STR(wpa_s->pending_join_iface_addr),
5591 MAC2STR(iface_addr));
5592 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
5593 ETH_ALEN);
5594
5595 freq = p2p_get_oper_freq(wpa_s->global->p2p,
5596 wpa_s->pending_join_iface_addr);
5597 }
5598 if (freq >= 0) {
5599 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
5600 "from P2P peer table: %d MHz", freq);
5601 }
5602 if (wpa_s->p2p_join_ssid_len) {
5603 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
5604 MACSTR " and SSID %s",
5605 MAC2STR(wpa_s->pending_join_iface_addr),
5606 wpa_ssid_txt(wpa_s->p2p_join_ssid,
5607 wpa_s->p2p_join_ssid_len));
5608 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5609 wpa_s->p2p_join_ssid,
5610 wpa_s->p2p_join_ssid_len);
5611 }
5612 if (!bss) {
5613 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
5614 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
5615 bss = wpa_bss_get_bssid_latest(wpa_s,
5616 wpa_s->pending_join_iface_addr);
5617 }
5618 if (bss) {
5619 freq = bss->freq;
5620 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
5621 "from BSS table: %d MHz (SSID %s)", freq,
5622 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5623 }
5624 if (freq > 0) {
5625 u16 method;
5626
5627 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
5628 wpa_msg_global(wpa_s->parent, MSG_INFO,
5629 P2P_EVENT_GROUP_FORMATION_FAILURE
5630 "reason=FREQ_CONFLICT");
5631 return;
5632 }
5633
5634 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
5635 "prior to joining an existing group (GO " MACSTR
5636 " freq=%u MHz)",
5637 MAC2STR(wpa_s->pending_join_dev_addr), freq);
5638 wpa_s->pending_pd_before_join = 1;
5639
5640 switch (wpa_s->pending_join_wps_method) {
5641 case WPS_PIN_DISPLAY:
5642 method = WPS_CONFIG_KEYPAD;
5643 break;
5644 case WPS_PIN_KEYPAD:
5645 method = WPS_CONFIG_DISPLAY;
5646 break;
5647 case WPS_PBC:
5648 method = WPS_CONFIG_PUSHBUTTON;
5649 break;
5650 default:
5651 method = 0;
5652 break;
5653 }
5654
5655 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
5656 wpa_s->pending_join_dev_addr) ==
5657 method)) {
5658 /*
5659 * We have already performed provision discovery for
5660 * joining the group. Proceed directly to join
5661 * operation without duplicated provision discovery. */
5662 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
5663 "with " MACSTR " already done - proceed to "
5664 "join",
5665 MAC2STR(wpa_s->pending_join_dev_addr));
5666 wpa_s->pending_pd_before_join = 0;
5667 goto start;
5668 }
5669
5670 if (p2p_prov_disc_req(wpa_s->global->p2p,
5671 wpa_s->pending_join_dev_addr,
5672 NULL, method, 1,
5673 freq, wpa_s->user_initiated_pd) < 0) {
5674 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
5675 "Discovery Request before joining an "
5676 "existing group");
5677 wpa_s->pending_pd_before_join = 0;
5678 goto start;
5679 }
5680 return;
5681 }
5682
5683 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
5684 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5685 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5686 wpas_p2p_check_join_scan_limit(wpa_s);
5687 return;
5688
5689 start:
5690 /* Start join operation immediately */
5691 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
5692 }
5693
5694
5695 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
5696 const u8 *ssid, size_t ssid_len)
5697 {
5698 int ret;
5699 struct wpa_driver_scan_params params;
5700 struct wpabuf *wps_ie, *ies;
5701 size_t ielen;
5702 int freqs[2] = { 0, 0 };
5703
5704 os_memset(&params, 0, sizeof(params));
5705
5706 /* P2P Wildcard SSID */
5707 params.num_ssids = 1;
5708 if (ssid && ssid_len) {
5709 params.ssids[0].ssid = ssid;
5710 params.ssids[0].ssid_len = ssid_len;
5711 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
5712 wpa_s->p2p_join_ssid_len = ssid_len;
5713 } else {
5714 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
5715 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
5716 wpa_s->p2p_join_ssid_len = 0;
5717 }
5718
5719 wpa_s->wps->dev.p2p = 1;
5720 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
5721 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
5722 NULL);
5723 if (wps_ie == NULL) {
5724 wpas_p2p_scan_res_join(wpa_s, NULL);
5725 return;
5726 }
5727
5728 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
5729 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
5730 if (ies == NULL) {
5731 wpabuf_free(wps_ie);
5732 wpas_p2p_scan_res_join(wpa_s, NULL);
5733 return;
5734 }
5735 wpabuf_put_buf(ies, wps_ie);
5736 wpabuf_free(wps_ie);
5737
5738 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
5739
5740 params.p2p_probe = 1;
5741 params.extra_ies = wpabuf_head(ies);
5742 params.extra_ies_len = wpabuf_len(ies);
5743
5744 if (!freq) {
5745 int oper_freq;
5746 /*
5747 * If freq is not provided, check the operating freq of the GO
5748 * and use a single channel scan on if possible.
5749 */
5750 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
5751 wpa_s->pending_join_iface_addr);
5752 if (oper_freq > 0)
5753 freq = oper_freq;
5754 }
5755 if (freq > 0) {
5756 freqs[0] = freq;
5757 params.freqs = freqs;
5758 }
5759
5760 /*
5761 * Run a scan to update BSS table and start Provision Discovery once
5762 * the new scan results become available.
5763 */
5764 ret = wpa_drv_scan(wpa_s, &params);
5765 if (!ret) {
5766 os_get_reltime(&wpa_s->scan_trigger_time);
5767 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5768 wpa_s->own_scan_requested = 1;
5769 }
5770
5771 wpabuf_free(ies);
5772
5773 if (ret) {
5774 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5775 "try again later");
5776 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5777 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5778 wpas_p2p_check_join_scan_limit(wpa_s);
5779 }
5780 }
5781
5782
5783 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5784 {
5785 struct wpa_supplicant *wpa_s = eloop_ctx;
5786 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5787 }
5788
5789
5790 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5791 const u8 *dev_addr, enum p2p_wps_method wps_method,
5792 int auto_join, int op_freq,
5793 const u8 *ssid, size_t ssid_len)
5794 {
5795 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5796 MACSTR " dev " MACSTR " op_freq=%d)%s",
5797 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5798 auto_join ? " (auto_join)" : "");
5799 if (ssid && ssid_len) {
5800 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5801 wpa_ssid_txt(ssid, ssid_len));
5802 }
5803
5804 wpa_s->p2p_auto_pd = 0;
5805 wpa_s->p2p_auto_join = !!auto_join;
5806 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5807 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5808 wpa_s->pending_join_wps_method = wps_method;
5809
5810 /* Make sure we are not running find during connection establishment */
5811 wpas_p2p_stop_find(wpa_s);
5812
5813 wpa_s->p2p_join_scan_count = 0;
5814 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5815 return 0;
5816 }
5817
5818
5819 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5820 const u8 *ssid, size_t ssid_len)
5821 {
5822 struct wpa_supplicant *group;
5823 struct p2p_go_neg_results res;
5824 struct wpa_bss *bss;
5825
5826 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5827 if (group == NULL)
5828 return -1;
5829 if (group != wpa_s) {
5830 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5831 sizeof(group->p2p_pin));
5832 group->p2p_wps_method = wpa_s->p2p_wps_method;
5833 } else {
5834 /*
5835 * Need to mark the current interface for p2p_group_formation
5836 * when a separate group interface is not used. This is needed
5837 * to allow p2p_cancel stop a pending p2p_connect-join.
5838 * wpas_p2p_init_group_interface() addresses this for the case
5839 * where a separate group interface is used.
5840 */
5841 wpa_s->global->p2p_group_formation = wpa_s;
5842 }
5843
5844 group->p2p_in_provisioning = 1;
5845 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5846
5847 os_memset(&res, 0, sizeof(res));
5848 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5849 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5850 ETH_ALEN);
5851 res.wps_method = wpa_s->pending_join_wps_method;
5852 if (freq && ssid && ssid_len) {
5853 res.freq = freq;
5854 res.ssid_len = ssid_len;
5855 os_memcpy(res.ssid, ssid, ssid_len);
5856 } else {
5857 bss = wpa_bss_get_bssid_latest(wpa_s,
5858 wpa_s->pending_join_iface_addr);
5859 if (bss) {
5860 res.freq = bss->freq;
5861 res.ssid_len = bss->ssid_len;
5862 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5863 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5864 bss->freq,
5865 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5866 }
5867 }
5868
5869 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5870 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5871 "starting client");
5872 wpa_drv_cancel_remain_on_channel(wpa_s);
5873 wpa_s->off_channel_freq = 0;
5874 wpa_s->roc_waiting_drv_freq = 0;
5875 }
5876 wpas_start_wps_enrollee(group, &res);
5877
5878 /*
5879 * Allow a longer timeout for join-a-running-group than normal 15
5880 * second group formation timeout since the GO may not have authorized
5881 * our connection yet.
5882 */
5883 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5884 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5885 wpa_s, NULL);
5886
5887 return 0;
5888 }
5889
5890
5891 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5892 int *force_freq, int *pref_freq, int go)
5893 {
5894 struct wpa_used_freq_data *freqs;
5895 int res, best_freq, num_unused;
5896 unsigned int freq_in_use = 0, num, i;
5897
5898 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5899 sizeof(struct wpa_used_freq_data));
5900 if (!freqs)
5901 return -1;
5902
5903 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5904 wpa_s->num_multichan_concurrent);
5905
5906 /*
5907 * It is possible that the total number of used frequencies is bigger
5908 * than the number of frequencies used for P2P, so get the system wide
5909 * number of unused frequencies.
5910 */
5911 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5912
5913 wpa_printf(MSG_DEBUG,
5914 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5915 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5916
5917 if (freq > 0) {
5918 int ret;
5919 if (go)
5920 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5921 else
5922 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5923 if (!ret) {
5924 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
5925 "(%u MHz) is not supported for P2P uses",
5926 freq);
5927 res = -3;
5928 goto exit_free;
5929 }
5930
5931 for (i = 0; i < num; i++) {
5932 if (freqs[i].freq == freq)
5933 freq_in_use = 1;
5934 }
5935
5936 if (num_unused <= 0 && !freq_in_use) {
5937 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5938 freq);
5939 res = -2;
5940 goto exit_free;
5941 }
5942 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5943 "requested channel (%u MHz)", freq);
5944 *force_freq = freq;
5945 goto exit_ok;
5946 }
5947
5948 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5949
5950 /* We have a candidate frequency to use */
5951 if (best_freq > 0) {
5952 if (*pref_freq == 0 && num_unused > 0) {
5953 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5954 best_freq);
5955 *pref_freq = best_freq;
5956 } else {
5957 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5958 best_freq);
5959 *force_freq = best_freq;
5960 }
5961 } else if (num_unused > 0) {
5962 wpa_printf(MSG_DEBUG,
5963 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5964 *force_freq = 0;
5965 } else {
5966 wpa_printf(MSG_DEBUG,
5967 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5968 res = -2;
5969 goto exit_free;
5970 }
5971
5972 exit_ok:
5973 res = 0;
5974 exit_free:
5975 os_free(freqs);
5976 return res;
5977 }
5978
5979
5980 /**
5981 * wpas_p2p_connect - Request P2P Group Formation to be started
5982 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5983 * @peer_addr: Address of the peer P2P Device
5984 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5985 * @persistent_group: Whether to create a persistent group
5986 * @auto_join: Whether to select join vs. GO Negotiation automatically
5987 * @join: Whether to join an existing group (as a client) instead of starting
5988 * Group Owner negotiation; @peer_addr is BSSID in that case
5989 * @auth: Whether to only authorize the connection instead of doing that and
5990 * initiating Group Owner negotiation
5991 * @go_intent: GO Intent or -1 to use default
5992 * @freq: Frequency for the group or 0 for auto-selection
5993 * @persistent_id: Persistent group credentials to use for forcing GO
5994 * parameters or -1 to generate new values (SSID/passphrase)
5995 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5996 * interoperability workaround when initiating group formation
5997 * @ht40: Start GO with 40 MHz channel width
5998 * @vht: Start GO with VHT support
5999 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
6000 * failure, -2 on failure due to channel not currently available,
6001 * -3 if forced channel is not supported
6002 */
6003 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6004 const char *pin, enum p2p_wps_method wps_method,
6005 int persistent_group, int auto_join, int join, int auth,
6006 int go_intent, int freq, int persistent_id, int pd,
6007 int ht40, int vht)
6008 {
6009 int force_freq = 0, pref_freq = 0;
6010 int ret = 0, res;
6011 enum wpa_driver_if_type iftype;
6012 const u8 *if_addr;
6013 struct wpa_ssid *ssid = NULL;
6014
6015 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6016 return -1;
6017
6018 if (persistent_id >= 0) {
6019 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
6020 if (ssid == NULL || ssid->disabled != 2 ||
6021 ssid->mode != WPAS_MODE_P2P_GO)
6022 return -1;
6023 }
6024
6025 os_free(wpa_s->global->add_psk);
6026 wpa_s->global->add_psk = NULL;
6027
6028 wpa_s->global->p2p_fail_on_wps_complete = 0;
6029 wpa_s->global->pending_p2ps_group = 0;
6030
6031 if (go_intent < 0)
6032 go_intent = wpa_s->conf->p2p_go_intent;
6033
6034 if (!auth)
6035 wpa_s->p2p_long_listen = 0;
6036
6037 wpa_s->p2p_wps_method = wps_method;
6038 wpa_s->p2p_persistent_group = !!persistent_group;
6039 wpa_s->p2p_persistent_id = persistent_id;
6040 wpa_s->p2p_go_intent = go_intent;
6041 wpa_s->p2p_connect_freq = freq;
6042 wpa_s->p2p_fallback_to_go_neg = 0;
6043 wpa_s->p2p_pd_before_go_neg = !!pd;
6044 wpa_s->p2p_go_ht40 = !!ht40;
6045 wpa_s->p2p_go_vht = !!vht;
6046
6047 if (pin)
6048 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
6049 else if (wps_method == WPS_PIN_DISPLAY) {
6050 ret = wps_generate_pin();
6051 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
6052 "%08d", ret);
6053 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
6054 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
6055 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
6056 wpa_s->p2p_pin);
6057 } else
6058 wpa_s->p2p_pin[0] = '\0';
6059
6060 if (join || auto_join) {
6061 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
6062 if (auth) {
6063 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
6064 "connect a running group from " MACSTR,
6065 MAC2STR(peer_addr));
6066 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6067 return ret;
6068 }
6069 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
6070 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
6071 iface_addr) < 0) {
6072 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
6073 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
6074 dev_addr);
6075 }
6076 if (auto_join) {
6077 os_get_reltime(&wpa_s->p2p_auto_started);
6078 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
6079 "%ld.%06ld",
6080 wpa_s->p2p_auto_started.sec,
6081 wpa_s->p2p_auto_started.usec);
6082 }
6083 wpa_s->user_initiated_pd = 1;
6084 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
6085 auto_join, freq, NULL, 0) < 0)
6086 return -1;
6087 return ret;
6088 }
6089
6090 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6091 go_intent == 15);
6092 if (res)
6093 return res;
6094 wpas_p2p_set_own_freq_preference(wpa_s,
6095 force_freq ? force_freq : pref_freq);
6096
6097 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
6098
6099 if (wpa_s->create_p2p_iface) {
6100 /* Prepare to add a new interface for the group */
6101 iftype = WPA_IF_P2P_GROUP;
6102 if (go_intent == 15)
6103 iftype = WPA_IF_P2P_GO;
6104 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
6105 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
6106 "interface for the group");
6107 return -1;
6108 }
6109
6110 if_addr = wpa_s->pending_interface_addr;
6111 } else
6112 if_addr = wpa_s->own_addr;
6113
6114 if (auth) {
6115 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6116 go_intent, if_addr,
6117 force_freq, persistent_group, ssid,
6118 pref_freq) < 0)
6119 return -1;
6120 return ret;
6121 }
6122
6123 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
6124 go_intent, if_addr, force_freq,
6125 persistent_group, ssid, pref_freq) < 0) {
6126 if (wpa_s->create_p2p_iface)
6127 wpas_p2p_remove_pending_group_interface(wpa_s);
6128 return -1;
6129 }
6130 return ret;
6131 }
6132
6133
6134 /**
6135 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
6136 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6137 * @freq: Frequency of the channel in MHz
6138 * @duration: Duration of the stay on the channel in milliseconds
6139 *
6140 * This callback is called when the driver indicates that it has started the
6141 * requested remain-on-channel duration.
6142 */
6143 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
6144 unsigned int freq, unsigned int duration)
6145 {
6146 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6147 return;
6148 wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
6149 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
6150 wpa_s->roc_waiting_drv_freq, freq, duration);
6151 if (wpa_s->off_channel_freq &&
6152 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
6153 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
6154 wpa_s->pending_listen_duration);
6155 wpa_s->pending_listen_freq = 0;
6156 } else {
6157 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
6158 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
6159 freq, duration);
6160 }
6161 }
6162
6163
6164 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
6165 {
6166 /* Limit maximum Listen state time based on driver limitation. */
6167 if (timeout > wpa_s->max_remain_on_chan)
6168 timeout = wpa_s->max_remain_on_chan;
6169
6170 return p2p_listen(wpa_s->global->p2p, timeout);
6171 }
6172
6173
6174 /**
6175 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
6176 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6177 * @freq: Frequency of the channel in MHz
6178 *
6179 * This callback is called when the driver indicates that a remain-on-channel
6180 * operation has been completed, i.e., the duration on the requested channel
6181 * has timed out.
6182 */
6183 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
6184 unsigned int freq)
6185 {
6186 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
6187 "(p2p_long_listen=%d ms pending_action_tx=%p)",
6188 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
6189 wpas_p2p_listen_work_done(wpa_s);
6190 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6191 return;
6192 if (wpa_s->p2p_long_listen > 0)
6193 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
6194 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
6195 return; /* P2P module started a new operation */
6196 if (offchannel_pending_action_tx(wpa_s))
6197 return;
6198 if (wpa_s->p2p_long_listen > 0) {
6199 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
6200 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
6201 } else {
6202 /*
6203 * When listen duration is over, stop listen & update p2p_state
6204 * to IDLE.
6205 */
6206 p2p_stop_listen(wpa_s->global->p2p);
6207 }
6208 }
6209
6210
6211 /**
6212 * wpas_p2p_group_remove - Remove a P2P group
6213 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6214 * @ifname: Network interface name of the group interface or "*" to remove all
6215 * groups
6216 * Returns: 0 on success, -1 on failure
6217 *
6218 * This function is used to remove a P2P group. This can be used to disconnect
6219 * from a group in which the local end is a P2P Client or to end a P2P Group in
6220 * case the local end is the Group Owner. If a virtual network interface was
6221 * created for this group, that interface will be removed. Otherwise, only the
6222 * configured P2P group network will be removed from the interface.
6223 */
6224 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
6225 {
6226 struct wpa_global *global = wpa_s->global;
6227 struct wpa_supplicant *calling_wpa_s = wpa_s;
6228
6229 if (os_strcmp(ifname, "*") == 0) {
6230 struct wpa_supplicant *prev;
6231 wpa_s = global->ifaces;
6232 while (wpa_s) {
6233 prev = wpa_s;
6234 wpa_s = wpa_s->next;
6235 if (prev->p2p_group_interface !=
6236 NOT_P2P_GROUP_INTERFACE ||
6237 (prev->current_ssid &&
6238 prev->current_ssid->p2p_group))
6239 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
6240 }
6241 return 0;
6242 }
6243
6244 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6245 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6246 break;
6247 }
6248
6249 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
6250 }
6251
6252
6253 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
6254 {
6255 unsigned int r;
6256
6257 if (freq == 2) {
6258 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
6259 "band");
6260 if (wpa_s->best_24_freq > 0 &&
6261 p2p_supported_freq_go(wpa_s->global->p2p,
6262 wpa_s->best_24_freq)) {
6263 freq = wpa_s->best_24_freq;
6264 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
6265 "channel: %d MHz", freq);
6266 } else {
6267 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6268 return -1;
6269 freq = 2412 + (r % 3) * 25;
6270 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
6271 "channel: %d MHz", freq);
6272 }
6273 }
6274
6275 if (freq == 5) {
6276 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
6277 "band");
6278 if (wpa_s->best_5_freq > 0 &&
6279 p2p_supported_freq_go(wpa_s->global->p2p,
6280 wpa_s->best_5_freq)) {
6281 freq = wpa_s->best_5_freq;
6282 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
6283 "channel: %d MHz", freq);
6284 } else {
6285 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6286 return -1;
6287 freq = 5180 + (r % 4) * 20;
6288 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
6289 wpa_printf(MSG_DEBUG, "P2P: Could not select "
6290 "5 GHz channel for P2P group");
6291 return -1;
6292 }
6293 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
6294 "channel: %d MHz", freq);
6295 }
6296 }
6297
6298 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
6299 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
6300 "(%u MHz) is not supported for P2P uses",
6301 freq);
6302 return -1;
6303 }
6304
6305 return freq;
6306 }
6307
6308
6309 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
6310 struct p2p_go_neg_results *params,
6311 const struct p2p_channels *channels)
6312 {
6313 unsigned int i, r;
6314
6315 /* first try some random selection of the social channels */
6316 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6317 return -1;
6318
6319 for (i = 0; i < 3; i++) {
6320 params->freq = 2412 + ((r + i) % 3) * 25;
6321 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
6322 freq_included(channels, params->freq) &&
6323 p2p_supported_freq(wpa_s->global->p2p, params->freq))
6324 goto out;
6325 }
6326
6327 /* try all channels in reg. class 81 */
6328 for (i = 0; i < 11; i++) {
6329 params->freq = 2412 + i * 5;
6330 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
6331 freq_included(channels, params->freq) &&
6332 p2p_supported_freq(wpa_s->global->p2p, params->freq))
6333 goto out;
6334 }
6335
6336 /* try social channel class 180 channel 2 */
6337 params->freq = 58320 + 1 * 2160;
6338 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
6339 freq_included(channels, params->freq) &&
6340 p2p_supported_freq(wpa_s->global->p2p, params->freq))
6341 goto out;
6342
6343 /* try all channels in reg. class 180 */
6344 for (i = 0; i < 4; i++) {
6345 params->freq = 58320 + i * 2160;
6346 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
6347 freq_included(channels, params->freq) &&
6348 p2p_supported_freq(wpa_s->global->p2p, params->freq))
6349 goto out;
6350 }
6351
6352 wpa_printf(MSG_DEBUG, "P2P: No 2.4 and 60 GHz channel allowed");
6353 return -1;
6354 out:
6355 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
6356 params->freq);
6357 return 0;
6358 }
6359
6360
6361 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
6362 struct p2p_go_neg_results *params,
6363 int freq, int ht40, int vht,
6364 const struct p2p_channels *channels)
6365 {
6366 struct wpa_used_freq_data *freqs;
6367 unsigned int pref_freq, cand_freq;
6368 unsigned int num, i;
6369
6370 os_memset(params, 0, sizeof(*params));
6371 params->role_go = 1;
6372 params->ht40 = ht40;
6373 params->vht = vht;
6374 if (freq) {
6375 if (!freq_included(channels, freq)) {
6376 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
6377 "accepted", freq);
6378 return -1;
6379 }
6380 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
6381 "frequency %d MHz", freq);
6382 params->freq = freq;
6383 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
6384 wpa_s->conf->p2p_oper_channel >= 1 &&
6385 wpa_s->conf->p2p_oper_channel <= 11 &&
6386 freq_included(channels,
6387 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
6388 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
6389 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
6390 "frequency %d MHz", params->freq);
6391 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
6392 wpa_s->conf->p2p_oper_reg_class == 116 ||
6393 wpa_s->conf->p2p_oper_reg_class == 117 ||
6394 wpa_s->conf->p2p_oper_reg_class == 124 ||
6395 wpa_s->conf->p2p_oper_reg_class == 126 ||
6396 wpa_s->conf->p2p_oper_reg_class == 127) &&
6397 freq_included(channels,
6398 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
6399 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
6400 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
6401 "frequency %d MHz", params->freq);
6402 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
6403 wpa_s->best_overall_freq > 0 &&
6404 p2p_supported_freq_go(wpa_s->global->p2p,
6405 wpa_s->best_overall_freq) &&
6406 freq_included(channels, wpa_s->best_overall_freq)) {
6407 params->freq = wpa_s->best_overall_freq;
6408 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
6409 "channel %d MHz", params->freq);
6410 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
6411 wpa_s->best_24_freq > 0 &&
6412 p2p_supported_freq_go(wpa_s->global->p2p,
6413 wpa_s->best_24_freq) &&
6414 freq_included(channels, wpa_s->best_24_freq)) {
6415 params->freq = wpa_s->best_24_freq;
6416 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
6417 "channel %d MHz", params->freq);
6418 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
6419 wpa_s->best_5_freq > 0 &&
6420 p2p_supported_freq_go(wpa_s->global->p2p,
6421 wpa_s->best_5_freq) &&
6422 freq_included(channels, wpa_s->best_5_freq)) {
6423 params->freq = wpa_s->best_5_freq;
6424 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
6425 "channel %d MHz", params->freq);
6426 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
6427 channels))) {
6428 params->freq = pref_freq;
6429 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
6430 "channels", params->freq);
6431 } else {
6432 /* no preference, select some channel */
6433 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
6434 return -1;
6435 }
6436
6437 freqs = os_calloc(wpa_s->num_multichan_concurrent,
6438 sizeof(struct wpa_used_freq_data));
6439 if (!freqs)
6440 return -1;
6441
6442 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
6443 wpa_s->num_multichan_concurrent);
6444
6445 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
6446
6447 /* First try the best used frequency if possible */
6448 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
6449 params->freq = cand_freq;
6450 } else if (!freq) {
6451 /* Try any of the used frequencies */
6452 for (i = 0; i < num; i++) {
6453 if (freq_included(channels, freqs[i].freq)) {
6454 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
6455 freqs[i].freq);
6456 params->freq = freqs[i].freq;
6457 break;
6458 }
6459 }
6460
6461 if (i == num) {
6462 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
6463 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
6464 os_free(freqs);
6465 return -1;
6466 } else {
6467 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
6468 }
6469 }
6470 } else {
6471 for (i = 0; i < num; i++) {
6472 if (freqs[i].freq == freq)
6473 break;
6474 }
6475
6476 if (i == num) {
6477 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
6478 if (freq)
6479 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
6480 os_free(freqs);
6481 return -1;
6482 } else {
6483 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
6484 }
6485 }
6486 }
6487
6488 os_free(freqs);
6489 return 0;
6490 }
6491
6492
6493 static struct wpa_supplicant *
6494 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
6495 int go)
6496 {
6497 struct wpa_supplicant *group_wpa_s;
6498
6499 if (!wpas_p2p_create_iface(wpa_s)) {
6500 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
6501 "operations");
6502 wpa_s->p2p_first_connection_timeout = 0;
6503 return wpa_s;
6504 }
6505
6506 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
6507 WPA_IF_P2P_CLIENT) < 0) {
6508 wpa_msg_global(wpa_s, MSG_ERROR,
6509 "P2P: Failed to add group interface");
6510 return NULL;
6511 }
6512 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
6513 if (group_wpa_s == NULL) {
6514 wpa_msg_global(wpa_s, MSG_ERROR,
6515 "P2P: Failed to initialize group interface");
6516 wpas_p2p_remove_pending_group_interface(wpa_s);
6517 return NULL;
6518 }
6519
6520 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6521 group_wpa_s->ifname);
6522 group_wpa_s->p2p_first_connection_timeout = 0;
6523 return group_wpa_s;
6524 }
6525
6526
6527 /**
6528 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6529 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6530 * @persistent_group: Whether to create a persistent group
6531 * @freq: Frequency for the group or 0 to indicate no hardcoding
6532 * @ht40: Start GO with 40 MHz channel width
6533 * @vht: Start GO with VHT support
6534 * Returns: 0 on success, -1 on failure
6535 *
6536 * This function creates a new P2P group with the local end as the Group Owner,
6537 * i.e., without using Group Owner Negotiation.
6538 */
6539 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6540 int freq, int ht40, int vht)
6541 {
6542 struct p2p_go_neg_results params;
6543
6544 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6545 return -1;
6546
6547 os_free(wpa_s->global->add_psk);
6548 wpa_s->global->add_psk = NULL;
6549
6550 /* Make sure we are not running find during connection establishment */
6551 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6552 wpas_p2p_stop_find_oper(wpa_s);
6553
6554 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6555 if (freq < 0)
6556 return -1;
6557
6558 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
6559 return -1;
6560 if (params.freq &&
6561 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
6562 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
6563 "(%u MHz) is not supported for P2P uses",
6564 params.freq);
6565 return -1;
6566 }
6567 p2p_go_params(wpa_s->global->p2p, &params);
6568 params.persistent_group = persistent_group;
6569
6570 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6571 if (wpa_s == NULL)
6572 return -1;
6573 wpas_start_wps_go(wpa_s, &params, 0);
6574
6575 return 0;
6576 }
6577
6578
6579 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6580 struct wpa_ssid *params, int addr_allocated,
6581 int freq)
6582 {
6583 struct wpa_ssid *ssid;
6584
6585 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6586 if (wpa_s == NULL)
6587 return -1;
6588 wpa_s->p2p_last_4way_hs_fail = NULL;
6589
6590 wpa_supplicant_ap_deinit(wpa_s);
6591
6592 ssid = wpa_config_add_network(wpa_s->conf);
6593 if (ssid == NULL)
6594 return -1;
6595 wpa_config_set_network_defaults(ssid);
6596 ssid->temporary = 1;
6597 ssid->proto = WPA_PROTO_RSN;
6598 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
6599 ssid->group_cipher = WPA_CIPHER_CCMP;
6600 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6601 ssid->ssid = os_malloc(params->ssid_len);
6602 if (ssid->ssid == NULL) {
6603 wpa_config_remove_network(wpa_s->conf, ssid->id);
6604 return -1;
6605 }
6606 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6607 ssid->ssid_len = params->ssid_len;
6608 ssid->p2p_group = 1;
6609 ssid->export_keys = 1;
6610 if (params->psk_set) {
6611 os_memcpy(ssid->psk, params->psk, 32);
6612 ssid->psk_set = 1;
6613 }
6614 if (params->passphrase)
6615 ssid->passphrase = os_strdup(params->passphrase);
6616
6617 wpa_s->show_group_started = 1;
6618 wpa_s->p2p_in_invitation = 1;
6619 wpa_s->p2p_invite_go_freq = freq;
6620
6621 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6622 NULL);
6623 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6624 wpas_p2p_group_formation_timeout,
6625 wpa_s->parent, NULL);
6626 wpa_supplicant_select_network(wpa_s, ssid);
6627
6628 return 0;
6629 }
6630
6631
6632 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6633 struct wpa_ssid *ssid, int addr_allocated,
6634 int force_freq, int neg_freq, int ht40,
6635 int vht, const struct p2p_channels *channels,
6636 int connection_timeout)
6637 {
6638 struct p2p_go_neg_results params;
6639 int go = 0, freq;
6640
6641 if (ssid->disabled != 2 || ssid->ssid == NULL)
6642 return -1;
6643
6644 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6645 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6646 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6647 "already running");
6648 return 0;
6649 }
6650
6651 os_free(wpa_s->global->add_psk);
6652 wpa_s->global->add_psk = NULL;
6653
6654 /* Make sure we are not running find during connection establishment */
6655 wpas_p2p_stop_find_oper(wpa_s);
6656
6657 wpa_s->p2p_fallback_to_go_neg = 0;
6658
6659 if (ssid->mode == WPAS_MODE_P2P_GO) {
6660 if (force_freq > 0) {
6661 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6662 if (freq < 0)
6663 return -1;
6664 } else {
6665 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6666 if (freq < 0 ||
6667 (freq > 0 && !freq_included(channels, freq)))
6668 freq = 0;
6669 }
6670 } else {
6671 freq = neg_freq;
6672 if (freq < 0 ||
6673 (freq > 0 && !freq_included(channels, freq)))
6674 freq = 0;
6675 }
6676
6677 if (ssid->mode == WPAS_MODE_INFRA)
6678 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
6679
6680 if (ssid->mode != WPAS_MODE_P2P_GO)
6681 return -1;
6682
6683 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
6684 return -1;
6685
6686 params.role_go = 1;
6687 params.psk_set = ssid->psk_set;
6688 if (params.psk_set)
6689 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6690 if (ssid->passphrase) {
6691 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6692 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6693 "persistent group");
6694 return -1;
6695 }
6696 os_strlcpy(params.passphrase, ssid->passphrase,
6697 sizeof(params.passphrase));
6698 }
6699 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6700 params.ssid_len = ssid->ssid_len;
6701 params.persistent_group = 1;
6702
6703 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6704 if (wpa_s == NULL)
6705 return -1;
6706
6707 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6708
6709 wpa_s->p2p_first_connection_timeout = connection_timeout;
6710 wpas_start_wps_go(wpa_s, &params, 0);
6711
6712 return 0;
6713 }
6714
6715
6716 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6717 struct wpabuf *proberesp_ies)
6718 {
6719 struct wpa_supplicant *wpa_s = ctx;
6720 if (wpa_s->ap_iface) {
6721 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6722 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6723 wpabuf_free(beacon_ies);
6724 wpabuf_free(proberesp_ies);
6725 return;
6726 }
6727 if (beacon_ies) {
6728 wpabuf_free(hapd->p2p_beacon_ie);
6729 hapd->p2p_beacon_ie = beacon_ies;
6730 }
6731 wpabuf_free(hapd->p2p_probe_resp_ie);
6732 hapd->p2p_probe_resp_ie = proberesp_ies;
6733 } else {
6734 wpabuf_free(beacon_ies);
6735 wpabuf_free(proberesp_ies);
6736 }
6737 wpa_supplicant_ap_update_beacon(wpa_s);
6738 }
6739
6740
6741 static void wpas_p2p_idle_update(void *ctx, int idle)
6742 {
6743 struct wpa_supplicant *wpa_s = ctx;
6744 if (!wpa_s->ap_iface)
6745 return;
6746 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6747 if (idle) {
6748 if (wpa_s->global->p2p_fail_on_wps_complete &&
6749 wpa_s->p2p_in_provisioning) {
6750 wpas_p2p_grpform_fail_after_wps(wpa_s);
6751 return;
6752 }
6753 wpas_p2p_set_group_idle_timeout(wpa_s);
6754 } else
6755 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6756 }
6757
6758
6759 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6760 struct wpa_ssid *ssid)
6761 {
6762 struct p2p_group *group;
6763 struct p2p_group_config *cfg;
6764
6765 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6766 return NULL;
6767
6768 cfg = os_zalloc(sizeof(*cfg));
6769 if (cfg == NULL)
6770 return NULL;
6771
6772 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6773 cfg->persistent_group = 2;
6774 else if (ssid->p2p_persistent_group)
6775 cfg->persistent_group = 1;
6776 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6777 if (wpa_s->max_stations &&
6778 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6779 cfg->max_clients = wpa_s->max_stations;
6780 else
6781 cfg->max_clients = wpa_s->conf->max_num_sta;
6782 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6783 cfg->ssid_len = ssid->ssid_len;
6784 cfg->freq = ssid->frequency;
6785 cfg->cb_ctx = wpa_s;
6786 cfg->ie_update = wpas_p2p_ie_update;
6787 cfg->idle_update = wpas_p2p_idle_update;
6788
6789 group = p2p_group_init(wpa_s->global->p2p, cfg);
6790 if (group == NULL)
6791 os_free(cfg);
6792 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6793 p2p_group_notif_formation_done(group);
6794 wpa_s->p2p_group = group;
6795 return group;
6796 }
6797
6798
6799 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6800 int registrar)
6801 {
6802 struct wpa_ssid *ssid = wpa_s->current_ssid;
6803
6804 if (!wpa_s->p2p_in_provisioning) {
6805 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6806 "provisioning not in progress");
6807 return;
6808 }
6809
6810 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6811 u8 go_dev_addr[ETH_ALEN];
6812 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6813 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6814 ssid->ssid_len);
6815 /* Clear any stored provisioning info */
6816 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6817 }
6818
6819 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6820 NULL);
6821 wpa_s->p2p_go_group_formation_completed = 1;
6822 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6823 /*
6824 * Use a separate timeout for initial data connection to
6825 * complete to allow the group to be removed automatically if
6826 * something goes wrong in this step before the P2P group idle
6827 * timeout mechanism is taken into use.
6828 */
6829 wpa_dbg(wpa_s, MSG_DEBUG,
6830 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6831 P2P_MAX_INITIAL_CONN_WAIT);
6832 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6833 wpas_p2p_group_formation_timeout,
6834 wpa_s->parent, NULL);
6835 } else if (ssid) {
6836 /*
6837 * Use a separate timeout for initial data connection to
6838 * complete to allow the group to be removed automatically if
6839 * the client does not complete data connection successfully.
6840 */
6841 wpa_dbg(wpa_s, MSG_DEBUG,
6842 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6843 P2P_MAX_INITIAL_CONN_WAIT_GO);
6844 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6845 wpas_p2p_group_formation_timeout,
6846 wpa_s->parent, NULL);
6847 /*
6848 * Complete group formation on first successful data connection
6849 */
6850 wpa_s->p2p_go_group_formation_completed = 0;
6851 }
6852 if (wpa_s->global->p2p)
6853 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6854 wpas_group_formation_completed(wpa_s, 1);
6855 }
6856
6857
6858 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6859 struct wps_event_fail *fail)
6860 {
6861 if (!wpa_s->p2p_in_provisioning) {
6862 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6863 "provisioning not in progress");
6864 return;
6865 }
6866
6867 if (wpa_s->go_params) {
6868 p2p_clear_provisioning_info(
6869 wpa_s->global->p2p,
6870 wpa_s->go_params->peer_device_addr);
6871 }
6872
6873 wpas_notify_p2p_wps_failed(wpa_s, fail);
6874
6875 if (wpa_s == wpa_s->global->p2p_group_formation) {
6876 /*
6877 * Allow some time for the failed WPS negotiation exchange to
6878 * complete, but remove the group since group formation cannot
6879 * succeed after provisioning failure.
6880 */
6881 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6882 wpa_s->global->p2p_fail_on_wps_complete = 1;
6883 eloop_deplete_timeout(0, 50000,
6884 wpas_p2p_group_formation_timeout,
6885 wpa_s->parent, NULL);
6886 }
6887 }
6888
6889
6890 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6891 {
6892 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6893 !wpa_s->p2p_in_provisioning)
6894 return 0;
6895
6896 wpas_p2p_grpform_fail_after_wps(wpa_s);
6897
6898 return 1;
6899 }
6900
6901
6902 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6903 const char *config_method,
6904 enum wpas_p2p_prov_disc_use use,
6905 struct p2ps_provision *p2ps_prov)
6906 {
6907 u16 config_methods;
6908
6909 wpa_s->global->pending_p2ps_group = 0;
6910 wpa_s->p2p_fallback_to_go_neg = 0;
6911 wpa_s->pending_pd_use = NORMAL_PD;
6912 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6913 p2ps_prov->conncap = p2ps_group_capability(
6914 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
6915 wpa_printf(MSG_DEBUG,
6916 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6917 __func__, p2ps_prov->conncap,
6918 p2ps_prov->adv_id, p2ps_prov->conncap,
6919 p2ps_prov->status, p2ps_prov->info);
6920
6921 config_methods = 0;
6922 } else if (os_strncmp(config_method, "display", 7) == 0)
6923 config_methods = WPS_CONFIG_DISPLAY;
6924 else if (os_strncmp(config_method, "keypad", 6) == 0)
6925 config_methods = WPS_CONFIG_KEYPAD;
6926 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6927 os_strncmp(config_method, "pushbutton", 10) == 0)
6928 config_methods = WPS_CONFIG_PUSHBUTTON;
6929 else {
6930 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6931 os_free(p2ps_prov);
6932 return -1;
6933 }
6934
6935 if (use == WPAS_P2P_PD_AUTO) {
6936 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6937 wpa_s->pending_pd_config_methods = config_methods;
6938 wpa_s->p2p_auto_pd = 1;
6939 wpa_s->p2p_auto_join = 0;
6940 wpa_s->pending_pd_before_join = 0;
6941 wpa_s->auto_pd_scan_retry = 0;
6942 wpas_p2p_stop_find(wpa_s);
6943 wpa_s->p2p_join_scan_count = 0;
6944 os_get_reltime(&wpa_s->p2p_auto_started);
6945 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6946 wpa_s->p2p_auto_started.sec,
6947 wpa_s->p2p_auto_started.usec);
6948 wpas_p2p_join_scan(wpa_s, NULL);
6949 return 0;
6950 }
6951
6952 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6953 os_free(p2ps_prov);
6954 return -1;
6955 }
6956
6957 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6958 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6959 0, 1);
6960 }
6961
6962
6963 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6964 char *end)
6965 {
6966 return p2p_scan_result_text(ies, ies_len, buf, end);
6967 }
6968
6969
6970 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6971 {
6972 if (!offchannel_pending_action_tx(wpa_s))
6973 return;
6974
6975 wpas_p2p_action_tx_clear(wpa_s);
6976
6977 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6978 "operation request");
6979 offchannel_clear_pending_action_tx(wpa_s);
6980 }
6981
6982
6983 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6984 enum p2p_discovery_type type,
6985 unsigned int num_req_dev_types, const u8 *req_dev_types,
6986 const u8 *dev_id, unsigned int search_delay,
6987 u8 seek_cnt, const char **seek_string)
6988 {
6989 wpas_p2p_clear_pending_action_tx(wpa_s);
6990 wpa_s->p2p_long_listen = 0;
6991
6992 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6993 wpa_s->p2p_in_provisioning)
6994 return -1;
6995
6996 wpa_supplicant_cancel_sched_scan(wpa_s);
6997
6998 return p2p_find(wpa_s->global->p2p, timeout, type,
6999 num_req_dev_types, req_dev_types, dev_id,
7000 search_delay, seek_cnt, seek_string);
7001 }
7002
7003
7004 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
7005 struct wpa_scan_results *scan_res)
7006 {
7007 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7008
7009 if (wpa_s->p2p_scan_work) {
7010 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
7011 wpa_s->p2p_scan_work = NULL;
7012 radio_work_done(work);
7013 }
7014
7015 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7016 return;
7017
7018 /*
7019 * Indicate that results have been processed so that the P2P module can
7020 * continue pending tasks.
7021 */
7022 p2p_scan_res_handled(wpa_s->global->p2p);
7023 }
7024
7025
7026 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
7027 {
7028 wpas_p2p_clear_pending_action_tx(wpa_s);
7029 wpa_s->p2p_long_listen = 0;
7030 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
7031 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
7032
7033 if (wpa_s->global->p2p)
7034 p2p_stop_find(wpa_s->global->p2p);
7035
7036 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
7037 wpa_printf(MSG_DEBUG,
7038 "P2P: Do not consider the scan results after stop_find");
7039 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
7040 }
7041 }
7042
7043
7044 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
7045 {
7046 wpas_p2p_stop_find_oper(wpa_s);
7047 if (!wpa_s->global->pending_group_iface_for_p2ps)
7048 wpas_p2p_remove_pending_group_interface(wpa_s);
7049 }
7050
7051
7052 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
7053 {
7054 struct wpa_supplicant *wpa_s = eloop_ctx;
7055 wpa_s->p2p_long_listen = 0;
7056 }
7057
7058
7059 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
7060 {
7061 int res;
7062
7063 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7064 return -1;
7065
7066 wpa_supplicant_cancel_sched_scan(wpa_s);
7067 wpas_p2p_clear_pending_action_tx(wpa_s);
7068
7069 if (timeout == 0) {
7070 /*
7071 * This is a request for unlimited Listen state. However, at
7072 * least for now, this is mapped to a Listen state for one
7073 * hour.
7074 */
7075 timeout = 3600;
7076 }
7077 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
7078 wpa_s->p2p_long_listen = 0;
7079
7080 /*
7081 * Stop previous find/listen operation to avoid trying to request a new
7082 * remain-on-channel operation while the driver is still running the
7083 * previous one.
7084 */
7085 if (wpa_s->global->p2p)
7086 p2p_stop_find(wpa_s->global->p2p);
7087
7088 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
7089 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
7090 wpa_s->p2p_long_listen = timeout * 1000;
7091 eloop_register_timeout(timeout, 0,
7092 wpas_p2p_long_listen_timeout,
7093 wpa_s, NULL);
7094 }
7095
7096 return res;
7097 }
7098
7099
7100 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
7101 u8 *buf, size_t len, int p2p_group)
7102 {
7103 struct wpabuf *p2p_ie;
7104 int ret;
7105
7106 if (wpa_s->global->p2p_disabled)
7107 return -1;
7108 if (wpa_s->conf->p2p_disabled)
7109 return -1;
7110 if (wpa_s->global->p2p == NULL)
7111 return -1;
7112 if (bss == NULL)
7113 return -1;
7114
7115 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
7116 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
7117 p2p_group, p2p_ie);
7118 wpabuf_free(p2p_ie);
7119
7120 return ret;
7121 }
7122
7123
7124 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
7125 const u8 *dst, const u8 *bssid,
7126 const u8 *ie, size_t ie_len, int ssi_signal)
7127 {
7128 if (wpa_s->global->p2p_disabled)
7129 return 0;
7130 if (wpa_s->global->p2p == NULL)
7131 return 0;
7132
7133 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
7134 ie, ie_len)) {
7135 case P2P_PREQ_NOT_P2P:
7136 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
7137 ssi_signal);
7138 /* fall through */
7139 case P2P_PREQ_MALFORMED:
7140 case P2P_PREQ_NOT_LISTEN:
7141 case P2P_PREQ_NOT_PROCESSED:
7142 default: /* make gcc happy */
7143 return 0;
7144 case P2P_PREQ_PROCESSED:
7145 return 1;
7146 }
7147 }
7148
7149
7150 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
7151 const u8 *sa, const u8 *bssid,
7152 u8 category, const u8 *data, size_t len, int freq)
7153 {
7154 if (wpa_s->global->p2p_disabled)
7155 return;
7156 if (wpa_s->global->p2p == NULL)
7157 return;
7158
7159 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
7160 freq);
7161 }
7162
7163
7164 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
7165 {
7166 if (wpa_s->global->p2p_disabled)
7167 return;
7168 if (wpa_s->global->p2p == NULL)
7169 return;
7170
7171 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
7172 }
7173
7174
7175 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
7176 {
7177 p2p_group_deinit(wpa_s->p2p_group);
7178 wpa_s->p2p_group = NULL;
7179
7180 wpa_s->ap_configured_cb = NULL;
7181 wpa_s->ap_configured_cb_ctx = NULL;
7182 wpa_s->ap_configured_cb_data = NULL;
7183 wpa_s->connect_without_scan = NULL;
7184 }
7185
7186
7187 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
7188 {
7189 wpa_s->p2p_long_listen = 0;
7190
7191 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7192 return -1;
7193
7194 return p2p_reject(wpa_s->global->p2p, addr);
7195 }
7196
7197
7198 /* Invite to reinvoke a persistent group */
7199 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
7200 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
7201 int ht40, int vht, int pref_freq)
7202 {
7203 enum p2p_invite_role role;
7204 u8 *bssid = NULL;
7205 int force_freq = 0;
7206 int res;
7207 int no_pref_freq_given = pref_freq == 0;
7208
7209 wpa_s->global->p2p_invite_group = NULL;
7210 if (peer_addr)
7211 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
7212 else
7213 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
7214
7215 wpa_s->p2p_persistent_go_freq = freq;
7216 wpa_s->p2p_go_ht40 = !!ht40;
7217 if (ssid->mode == WPAS_MODE_P2P_GO) {
7218 role = P2P_INVITE_ROLE_GO;
7219 if (peer_addr == NULL) {
7220 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
7221 "address in invitation command");
7222 return -1;
7223 }
7224 if (wpas_p2p_create_iface(wpa_s)) {
7225 if (wpas_p2p_add_group_interface(wpa_s,
7226 WPA_IF_P2P_GO) < 0) {
7227 wpa_printf(MSG_ERROR, "P2P: Failed to "
7228 "allocate a new interface for the "
7229 "group");
7230 return -1;
7231 }
7232 bssid = wpa_s->pending_interface_addr;
7233 } else
7234 bssid = wpa_s->own_addr;
7235 } else {
7236 role = P2P_INVITE_ROLE_CLIENT;
7237 peer_addr = ssid->bssid;
7238 }
7239 wpa_s->pending_invite_ssid_id = ssid->id;
7240
7241 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
7242 role == P2P_INVITE_ROLE_GO);
7243 if (res)
7244 return res;
7245
7246 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7247 return -1;
7248
7249 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
7250 no_pref_freq_given && pref_freq > 0 &&
7251 wpa_s->num_multichan_concurrent > 1 &&
7252 wpas_p2p_num_unused_channels(wpa_s) > 0) {
7253 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
7254 pref_freq);
7255 pref_freq = 0;
7256 }
7257
7258 /*
7259 * Stop any find/listen operations before invitation and possibly
7260 * connection establishment.
7261 */
7262 wpas_p2p_stop_find_oper(wpa_s);
7263
7264 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
7265 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
7266 1, pref_freq, -1);
7267 }
7268
7269
7270 /* Invite to join an active group */
7271 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
7272 const u8 *peer_addr, const u8 *go_dev_addr)
7273 {
7274 struct wpa_global *global = wpa_s->global;
7275 enum p2p_invite_role role;
7276 u8 *bssid = NULL;
7277 struct wpa_ssid *ssid;
7278 int persistent;
7279 int freq = 0, force_freq = 0, pref_freq = 0;
7280 int res;
7281
7282 wpa_s->p2p_persistent_go_freq = 0;
7283 wpa_s->p2p_go_ht40 = 0;
7284 wpa_s->p2p_go_vht = 0;
7285
7286 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7287 if (os_strcmp(wpa_s->ifname, ifname) == 0)
7288 break;
7289 }
7290 if (wpa_s == NULL) {
7291 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
7292 return -1;
7293 }
7294
7295 ssid = wpa_s->current_ssid;
7296 if (ssid == NULL) {
7297 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
7298 "invitation");
7299 return -1;
7300 }
7301
7302 wpa_s->global->p2p_invite_group = wpa_s;
7303 persistent = ssid->p2p_persistent_group &&
7304 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
7305 ssid->ssid, ssid->ssid_len);
7306
7307 if (ssid->mode == WPAS_MODE_P2P_GO) {
7308 role = P2P_INVITE_ROLE_ACTIVE_GO;
7309 bssid = wpa_s->own_addr;
7310 if (go_dev_addr == NULL)
7311 go_dev_addr = wpa_s->global->p2p_dev_addr;
7312 freq = ssid->frequency;
7313 } else {
7314 role = P2P_INVITE_ROLE_CLIENT;
7315 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
7316 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
7317 "invite to current group");
7318 return -1;
7319 }
7320 bssid = wpa_s->bssid;
7321 if (go_dev_addr == NULL &&
7322 !is_zero_ether_addr(wpa_s->go_dev_addr))
7323 go_dev_addr = wpa_s->go_dev_addr;
7324 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7325 (int) wpa_s->assoc_freq;
7326 }
7327 wpa_s->parent->pending_invite_ssid_id = -1;
7328
7329 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7330 return -1;
7331
7332 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
7333 role == P2P_INVITE_ROLE_ACTIVE_GO);
7334 if (res)
7335 return res;
7336 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
7337
7338 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
7339 ssid->ssid, ssid->ssid_len, force_freq,
7340 go_dev_addr, persistent, pref_freq, -1);
7341 }
7342
7343
7344 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
7345 {
7346 struct wpa_ssid *ssid = wpa_s->current_ssid;
7347 u8 go_dev_addr[ETH_ALEN];
7348 int network_id = -1;
7349 int persistent;
7350 int freq;
7351 u8 ip[3 * 4];
7352 char ip_addr[100];
7353
7354 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
7355 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7356 wpa_s->parent, NULL);
7357 }
7358
7359 if (!wpa_s->show_group_started || !ssid)
7360 return;
7361
7362 wpa_s->show_group_started = 0;
7363
7364 os_memset(go_dev_addr, 0, ETH_ALEN);
7365 if (ssid->bssid_set)
7366 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
7367 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
7368 ssid->ssid_len);
7369 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
7370
7371 if (wpa_s->global->p2p_group_formation == wpa_s)
7372 wpa_s->global->p2p_group_formation = NULL;
7373
7374 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7375 (int) wpa_s->assoc_freq;
7376
7377 ip_addr[0] = '\0';
7378 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
7379 int res;
7380
7381 res = os_snprintf(ip_addr, sizeof(ip_addr),
7382 " ip_addr=%u.%u.%u.%u "
7383 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
7384 ip[0], ip[1], ip[2], ip[3],
7385 ip[4], ip[5], ip[6], ip[7],
7386 ip[8], ip[9], ip[10], ip[11]);
7387 if (os_snprintf_error(sizeof(ip_addr), res))
7388 ip_addr[0] = '\0';
7389 }
7390
7391 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
7392 ssid->passphrase == NULL && ssid->psk_set ?
7393 ssid->psk : NULL,
7394 ssid->passphrase, go_dev_addr, persistent,
7395 ip_addr);
7396
7397 if (persistent)
7398 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
7399 ssid, go_dev_addr);
7400 if (network_id < 0)
7401 network_id = ssid->id;
7402 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
7403 }
7404
7405
7406 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
7407 u32 interval1, u32 duration2, u32 interval2)
7408 {
7409 int ret;
7410
7411 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7412 return -1;
7413
7414 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
7415 wpa_s->current_ssid == NULL ||
7416 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
7417 return -1;
7418
7419 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
7420 wpa_s->own_addr, wpa_s->assoc_freq,
7421 duration1, interval1, duration2, interval2);
7422 if (ret == 0)
7423 wpa_s->waiting_presence_resp = 1;
7424
7425 return ret;
7426 }
7427
7428
7429 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
7430 unsigned int interval)
7431 {
7432 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7433 return -1;
7434
7435 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7436 }
7437
7438
7439 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7440 {
7441 if (wpa_s->current_ssid == NULL) {
7442 /*
7443 * current_ssid can be cleared when P2P client interface gets
7444 * disconnected, so assume this interface was used as P2P
7445 * client.
7446 */
7447 return 1;
7448 }
7449 return wpa_s->current_ssid->p2p_group &&
7450 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7451 }
7452
7453
7454 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7455 {
7456 struct wpa_supplicant *wpa_s = eloop_ctx;
7457
7458 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7459 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7460 "disabled");
7461 return;
7462 }
7463
7464 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7465 "group");
7466 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7467 }
7468
7469
7470 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7471 {
7472 int timeout;
7473
7474 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7475 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7476
7477 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7478 return;
7479
7480 timeout = wpa_s->conf->p2p_group_idle;
7481 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7482 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7483 timeout = P2P_MAX_CLIENT_IDLE;
7484
7485 if (timeout == 0)
7486 return;
7487
7488 if (timeout < 0) {
7489 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7490 timeout = 0; /* special client mode no-timeout */
7491 else
7492 return;
7493 }
7494
7495 if (wpa_s->p2p_in_provisioning) {
7496 /*
7497 * Use the normal group formation timeout during the
7498 * provisioning phase to avoid terminating this process too
7499 * early due to group idle timeout.
7500 */
7501 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7502 "during provisioning");
7503 return;
7504 }
7505
7506 if (wpa_s->show_group_started) {
7507 /*
7508 * Use the normal group formation timeout between the end of
7509 * the provisioning phase and completion of 4-way handshake to
7510 * avoid terminating this process too early due to group idle
7511 * timeout.
7512 */
7513 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7514 "while waiting for initial 4-way handshake to "
7515 "complete");
7516 return;
7517 }
7518
7519 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7520 timeout);
7521 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7522 wpa_s, NULL);
7523 }
7524
7525
7526 /* Returns 1 if the interface was removed */
7527 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7528 u16 reason_code, const u8 *ie, size_t ie_len,
7529 int locally_generated)
7530 {
7531 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7532 return 0;
7533
7534 if (!locally_generated)
7535 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7536 ie_len);
7537
7538 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7539 wpa_s->current_ssid &&
7540 wpa_s->current_ssid->p2p_group &&
7541 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7542 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7543 "session is ending");
7544 if (wpas_p2p_group_delete(wpa_s,
7545 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7546 > 0)
7547 return 1;
7548 }
7549
7550 return 0;
7551 }
7552
7553
7554 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7555 u16 reason_code, const u8 *ie, size_t ie_len,
7556 int locally_generated)
7557 {
7558 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7559 return;
7560
7561 if (!locally_generated)
7562 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7563 ie_len);
7564 }
7565
7566
7567 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7568 {
7569 struct p2p_data *p2p = wpa_s->global->p2p;
7570
7571 if (p2p == NULL)
7572 return;
7573
7574 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7575 return;
7576
7577 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7578 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7579
7580 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7581 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7582
7583 if (wpa_s->wps &&
7584 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7585 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7586
7587 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7588 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7589
7590 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7591 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7592 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7593 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7594 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7595 }
7596
7597 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7598 p2p_set_sec_dev_types(p2p,
7599 (void *) wpa_s->conf->sec_device_type,
7600 wpa_s->conf->num_sec_device_types);
7601
7602 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7603 int i;
7604 p2p_remove_wps_vendor_extensions(p2p);
7605 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7606 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7607 continue;
7608 p2p_add_wps_vendor_extension(
7609 p2p, wpa_s->conf->wps_vendor_ext[i]);
7610 }
7611 }
7612
7613 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7614 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7615 char country[3];
7616 country[0] = wpa_s->conf->country[0];
7617 country[1] = wpa_s->conf->country[1];
7618 country[2] = 0x04;
7619 p2p_set_country(p2p, country);
7620 }
7621
7622 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7623 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7624 wpa_s->conf->p2p_ssid_postfix ?
7625 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7626 0);
7627 }
7628
7629 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7630 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7631
7632 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7633 u8 reg_class, channel;
7634 int ret;
7635 unsigned int r;
7636 u8 channel_forced;
7637
7638 if (wpa_s->conf->p2p_listen_reg_class &&
7639 wpa_s->conf->p2p_listen_channel) {
7640 reg_class = wpa_s->conf->p2p_listen_reg_class;
7641 channel = wpa_s->conf->p2p_listen_channel;
7642 channel_forced = 1;
7643 } else {
7644 reg_class = 81;
7645 /*
7646 * Pick one of the social channels randomly as the
7647 * listen channel.
7648 */
7649 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7650 channel = 1;
7651 else
7652 channel = 1 + (r % 3) * 5;
7653 channel_forced = 0;
7654 }
7655 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7656 channel_forced);
7657 if (ret)
7658 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7659 "failed: %d", ret);
7660 }
7661 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7662 u8 op_reg_class, op_channel, cfg_op_channel;
7663 int ret = 0;
7664 unsigned int r;
7665 if (wpa_s->conf->p2p_oper_reg_class &&
7666 wpa_s->conf->p2p_oper_channel) {
7667 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7668 op_channel = wpa_s->conf->p2p_oper_channel;
7669 cfg_op_channel = 1;
7670 } else {
7671 op_reg_class = 81;
7672 /*
7673 * Use random operation channel from (1, 6, 11)
7674 *if no other preference is indicated.
7675 */
7676 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7677 op_channel = 1;
7678 else
7679 op_channel = 1 + (r % 3) * 5;
7680 cfg_op_channel = 0;
7681 }
7682 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7683 cfg_op_channel);
7684 if (ret)
7685 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7686 "failed: %d", ret);
7687 }
7688
7689 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7690 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7691 wpa_s->conf->p2p_pref_chan) < 0) {
7692 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7693 "update failed");
7694 }
7695
7696 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7697 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7698 "update failed");
7699 }
7700 }
7701
7702 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7703 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7704 }
7705
7706
7707 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7708 int duration)
7709 {
7710 if (!wpa_s->ap_iface)
7711 return -1;
7712 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7713 duration);
7714 }
7715
7716
7717 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7718 {
7719 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7720 return -1;
7721
7722 wpa_s->global->cross_connection = enabled;
7723 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7724
7725 if (!enabled) {
7726 struct wpa_supplicant *iface;
7727
7728 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7729 {
7730 if (iface->cross_connect_enabled == 0)
7731 continue;
7732
7733 iface->cross_connect_enabled = 0;
7734 iface->cross_connect_in_use = 0;
7735 wpa_msg_global(iface->parent, MSG_INFO,
7736 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7737 iface->ifname,
7738 iface->cross_connect_uplink);
7739 }
7740 }
7741
7742 return 0;
7743 }
7744
7745
7746 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7747 {
7748 struct wpa_supplicant *iface;
7749
7750 if (!uplink->global->cross_connection)
7751 return;
7752
7753 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7754 if (!iface->cross_connect_enabled)
7755 continue;
7756 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7757 0)
7758 continue;
7759 if (iface->ap_iface == NULL)
7760 continue;
7761 if (iface->cross_connect_in_use)
7762 continue;
7763
7764 iface->cross_connect_in_use = 1;
7765 wpa_msg_global(iface->parent, MSG_INFO,
7766 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7767 iface->ifname, iface->cross_connect_uplink);
7768 }
7769 }
7770
7771
7772 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7773 {
7774 struct wpa_supplicant *iface;
7775
7776 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7777 if (!iface->cross_connect_enabled)
7778 continue;
7779 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7780 0)
7781 continue;
7782 if (!iface->cross_connect_in_use)
7783 continue;
7784
7785 wpa_msg_global(iface->parent, MSG_INFO,
7786 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7787 iface->ifname, iface->cross_connect_uplink);
7788 iface->cross_connect_in_use = 0;
7789 }
7790 }
7791
7792
7793 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7794 {
7795 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7796 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7797 wpa_s->cross_connect_disallowed)
7798 wpas_p2p_disable_cross_connect(wpa_s);
7799 else
7800 wpas_p2p_enable_cross_connect(wpa_s);
7801 if (!wpa_s->ap_iface &&
7802 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7803 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7804 }
7805
7806
7807 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7808 {
7809 wpas_p2p_disable_cross_connect(wpa_s);
7810 if (!wpa_s->ap_iface &&
7811 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7812 wpa_s, NULL))
7813 wpas_p2p_set_group_idle_timeout(wpa_s);
7814 }
7815
7816
7817 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7818 {
7819 struct wpa_supplicant *iface;
7820
7821 if (!wpa_s->global->cross_connection)
7822 return;
7823
7824 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7825 if (iface == wpa_s)
7826 continue;
7827 if (iface->drv_flags &
7828 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7829 continue;
7830 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7831 iface != wpa_s->parent)
7832 continue;
7833
7834 wpa_s->cross_connect_enabled = 1;
7835 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7836 sizeof(wpa_s->cross_connect_uplink));
7837 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7838 "%s to %s whenever uplink is available",
7839 wpa_s->ifname, wpa_s->cross_connect_uplink);
7840
7841 if (iface->ap_iface || iface->current_ssid == NULL ||
7842 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7843 iface->cross_connect_disallowed ||
7844 iface->wpa_state != WPA_COMPLETED)
7845 break;
7846
7847 wpa_s->cross_connect_in_use = 1;
7848 wpa_msg_global(wpa_s->parent, MSG_INFO,
7849 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7850 wpa_s->ifname, wpa_s->cross_connect_uplink);
7851 break;
7852 }
7853 }
7854
7855
7856 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7857 {
7858 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7859 !wpa_s->p2p_in_provisioning)
7860 return 0; /* not P2P client operation */
7861
7862 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7863 "session overlap");
7864 if (wpa_s != wpa_s->parent)
7865 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
7866 wpas_p2p_group_formation_failed(wpa_s);
7867 return 1;
7868 }
7869
7870
7871 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7872 {
7873 struct wpa_supplicant *wpa_s = eloop_ctx;
7874 wpas_p2p_notif_pbc_overlap(wpa_s);
7875 }
7876
7877
7878 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
7879 {
7880 struct p2p_channels chan, cli_chan;
7881 struct wpa_supplicant *ifs;
7882
7883 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7884 return;
7885
7886 os_memset(&chan, 0, sizeof(chan));
7887 os_memset(&cli_chan, 0, sizeof(cli_chan));
7888 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7889 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7890 "channel list");
7891 return;
7892 }
7893
7894 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7895
7896 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
7897 int freq;
7898 if (!ifs->current_ssid ||
7899 !ifs->current_ssid->p2p_group ||
7900 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
7901 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
7902 continue;
7903 freq = ifs->current_ssid->frequency;
7904 if (freq_included(&chan, freq)) {
7905 wpa_dbg(ifs, MSG_DEBUG,
7906 "P2P GO operating frequency %d MHz in valid range",
7907 freq);
7908 continue;
7909 }
7910
7911 wpa_dbg(ifs, MSG_DEBUG,
7912 "P2P GO operating in invalid frequency %d MHz", freq);
7913 /* TODO: Consider using CSA or removing the group within
7914 * wpa_supplicant */
7915 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
7916 }
7917 }
7918
7919
7920 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7921 struct wpa_scan_results *scan_res)
7922 {
7923 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7924 }
7925
7926
7927 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7928 {
7929 struct wpa_global *global = wpa_s->global;
7930 int found = 0;
7931 const u8 *peer;
7932
7933 if (global->p2p == NULL)
7934 return -1;
7935
7936 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7937
7938 if (wpa_s->pending_interface_name[0] &&
7939 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7940 found = 1;
7941
7942 peer = p2p_get_go_neg_peer(global->p2p);
7943 if (peer) {
7944 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7945 MACSTR, MAC2STR(peer));
7946 p2p_unauthorize(global->p2p, peer);
7947 found = 1;
7948 }
7949
7950 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7951 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7952 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7953 found = 1;
7954 }
7955
7956 if (wpa_s->pending_pd_before_join) {
7957 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7958 wpa_s->pending_pd_before_join = 0;
7959 found = 1;
7960 }
7961
7962 wpas_p2p_stop_find(wpa_s);
7963
7964 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7965 if (wpa_s == global->p2p_group_formation &&
7966 (wpa_s->p2p_in_provisioning ||
7967 wpa_s->parent->pending_interface_type ==
7968 WPA_IF_P2P_CLIENT)) {
7969 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7970 "formation found - cancelling",
7971 wpa_s->ifname);
7972 found = 1;
7973 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7974 wpa_s->parent, NULL);
7975 if (wpa_s->p2p_in_provisioning) {
7976 wpas_group_formation_completed(wpa_s, 0);
7977 break;
7978 }
7979 wpas_p2p_group_delete(wpa_s,
7980 P2P_GROUP_REMOVAL_REQUESTED);
7981 break;
7982 } else if (wpa_s->p2p_in_invitation) {
7983 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7984 wpa_s->ifname);
7985 found = 1;
7986 wpas_p2p_group_formation_failed(wpa_s);
7987 }
7988 }
7989
7990 if (!found) {
7991 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7992 return -1;
7993 }
7994
7995 return 0;
7996 }
7997
7998
7999 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
8000 {
8001 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
8002 return;
8003
8004 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
8005 "being available anymore");
8006 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
8007 }
8008
8009
8010 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
8011 int freq_24, int freq_5, int freq_overall)
8012 {
8013 struct p2p_data *p2p = wpa_s->global->p2p;
8014 if (p2p == NULL)
8015 return;
8016 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
8017 }
8018
8019
8020 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
8021 {
8022 u8 peer[ETH_ALEN];
8023 struct p2p_data *p2p = wpa_s->global->p2p;
8024
8025 if (p2p == NULL)
8026 return -1;
8027
8028 if (hwaddr_aton(addr, peer))
8029 return -1;
8030
8031 return p2p_unauthorize(p2p, peer);
8032 }
8033
8034
8035 /**
8036 * wpas_p2p_disconnect - Disconnect from a P2P Group
8037 * @wpa_s: Pointer to wpa_supplicant data
8038 * Returns: 0 on success, -1 on failure
8039 *
8040 * This can be used to disconnect from a group in which the local end is a P2P
8041 * Client or to end a P2P Group in case the local end is the Group Owner. If a
8042 * virtual network interface was created for this group, that interface will be
8043 * removed. Otherwise, only the configured P2P group network will be removed
8044 * from the interface.
8045 */
8046 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
8047 {
8048
8049 if (wpa_s == NULL)
8050 return -1;
8051
8052 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
8053 -1 : 0;
8054 }
8055
8056
8057 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
8058 {
8059 int ret;
8060
8061 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8062 return 0;
8063
8064 ret = p2p_in_progress(wpa_s->global->p2p);
8065 if (ret == 0) {
8066 /*
8067 * Check whether there is an ongoing WPS provisioning step (or
8068 * other parts of group formation) on another interface since
8069 * p2p_in_progress() does not report this to avoid issues for
8070 * scans during such provisioning step.
8071 */
8072 if (wpa_s->global->p2p_group_formation &&
8073 wpa_s->global->p2p_group_formation != wpa_s) {
8074 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
8075 "in group formation",
8076 wpa_s->global->p2p_group_formation->ifname);
8077 ret = 1;
8078 }
8079 }
8080
8081 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
8082 struct os_reltime now;
8083 os_get_reltime(&now);
8084 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
8085 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
8086 /* Wait for the first client has expired */
8087 wpa_s->global->p2p_go_wait_client.sec = 0;
8088 } else {
8089 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
8090 ret = 1;
8091 }
8092 }
8093
8094 return ret;
8095 }
8096
8097
8098 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
8099 struct wpa_ssid *ssid)
8100 {
8101 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
8102 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
8103 wpa_s->parent, NULL) > 0) {
8104 /**
8105 * Remove the network by scheduling the group formation
8106 * timeout to happen immediately. The teardown code
8107 * needs to be scheduled to run asynch later so that we
8108 * don't delete data from under ourselves unexpectedly.
8109 * Calling wpas_p2p_group_formation_timeout directly
8110 * causes a series of crashes in WPS failure scenarios.
8111 */
8112 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
8113 "P2P group network getting removed");
8114 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
8115 wpa_s->parent, NULL);
8116 }
8117 }
8118
8119
8120 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
8121 const u8 *addr, const u8 *ssid,
8122 size_t ssid_len)
8123 {
8124 struct wpa_ssid *s;
8125 size_t i;
8126
8127 for (s = wpa_s->conf->ssid; s; s = s->next) {
8128 if (s->disabled != 2)
8129 continue;
8130 if (ssid &&
8131 (ssid_len != s->ssid_len ||
8132 os_memcmp(ssid, s->ssid, ssid_len) != 0))
8133 continue;
8134 if (addr == NULL) {
8135 if (s->mode == WPAS_MODE_P2P_GO)
8136 return s;
8137 continue;
8138 }
8139 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
8140 return s; /* peer is GO in the persistent group */
8141 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
8142 continue;
8143 for (i = 0; i < s->num_p2p_clients; i++) {
8144 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
8145 addr, ETH_ALEN) == 0)
8146 return s; /* peer is P2P client in persistent
8147 * group */
8148 }
8149 }
8150
8151 return NULL;
8152 }
8153
8154
8155 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
8156 const u8 *addr)
8157 {
8158 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
8159 wpa_s->parent, NULL) > 0) {
8160 /*
8161 * This can happen if WPS provisioning step is not terminated
8162 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
8163 * peer was able to connect, there is no need to time out group
8164 * formation after this, though. In addition, this is used with
8165 * the initial connection wait on the GO as a separate formation
8166 * timeout and as such, expected to be hit after the initial WPS
8167 * provisioning step.
8168 */
8169 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
8170
8171 if (!wpa_s->p2p_go_group_formation_completed &&
8172 !wpa_s->group_formation_reported) {
8173 /*
8174 * GO has not yet notified group formation success since
8175 * the WPS step was not completed cleanly. Do that
8176 * notification now since the P2P Client was able to
8177 * connect and as such, must have received the
8178 * credential from the WPS step.
8179 */
8180 if (wpa_s->global->p2p)
8181 p2p_wps_success_cb(wpa_s->global->p2p, addr);
8182 wpas_group_formation_completed(wpa_s, 1);
8183 }
8184 }
8185 if (!wpa_s->p2p_go_group_formation_completed) {
8186 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
8187 wpa_s->p2p_go_group_formation_completed = 1;
8188 wpa_s->global->p2p_group_formation = NULL;
8189 wpa_s->p2p_in_provisioning = 0;
8190 wpa_s->p2p_in_invitation = 0;
8191 }
8192 wpa_s->global->p2p_go_wait_client.sec = 0;
8193 if (addr == NULL)
8194 return;
8195 wpas_p2p_add_persistent_group_client(wpa_s, addr);
8196 }
8197
8198
8199 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
8200 int group_added)
8201 {
8202 struct wpa_supplicant *group = wpa_s;
8203 int ret = 0;
8204
8205 if (wpa_s->global->p2p_group_formation)
8206 group = wpa_s->global->p2p_group_formation;
8207 wpa_s = wpa_s->parent;
8208 offchannel_send_action_done(wpa_s);
8209 if (group_added)
8210 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
8211 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
8212 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
8213 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
8214 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
8215 wpa_s->p2p_persistent_id,
8216 wpa_s->p2p_pd_before_go_neg,
8217 wpa_s->p2p_go_ht40,
8218 wpa_s->p2p_go_vht);
8219 return ret;
8220 }
8221
8222
8223 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
8224 {
8225 int res;
8226
8227 if (!wpa_s->p2p_fallback_to_go_neg ||
8228 wpa_s->p2p_in_provisioning <= 5)
8229 return 0;
8230
8231 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
8232 return 0; /* peer operating as a GO */
8233
8234 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
8235 "fallback to GO Negotiation");
8236 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
8237 "reason=GO-not-found");
8238 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
8239
8240 return res == 1 ? 2 : 1;
8241 }
8242
8243
8244 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
8245 {
8246 struct wpa_supplicant *ifs;
8247
8248 if (wpa_s->wpa_state > WPA_SCANNING) {
8249 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
8250 "concurrent operation",
8251 wpa_s->conf->p2p_search_delay);
8252 return wpa_s->conf->p2p_search_delay;
8253 }
8254
8255 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8256 radio_list) {
8257 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
8258 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
8259 "delay due to concurrent operation on "
8260 "interface %s",
8261 wpa_s->conf->p2p_search_delay,
8262 ifs->ifname);
8263 return wpa_s->conf->p2p_search_delay;
8264 }
8265 }
8266
8267 return 0;
8268 }
8269
8270
8271 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
8272 struct wpa_ssid *s, const u8 *addr,
8273 int iface_addr)
8274 {
8275 struct psk_list_entry *psk, *tmp;
8276 int changed = 0;
8277
8278 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
8279 list) {
8280 if ((iface_addr && !psk->p2p &&
8281 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
8282 (!iface_addr && psk->p2p &&
8283 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
8284 wpa_dbg(wpa_s, MSG_DEBUG,
8285 "P2P: Remove persistent group PSK list entry for "
8286 MACSTR " p2p=%u",
8287 MAC2STR(psk->addr), psk->p2p);
8288 dl_list_del(&psk->list);
8289 os_free(psk);
8290 changed++;
8291 }
8292 }
8293
8294 return changed;
8295 }
8296
8297
8298 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
8299 const u8 *p2p_dev_addr,
8300 const u8 *psk, size_t psk_len)
8301 {
8302 struct wpa_ssid *ssid = wpa_s->current_ssid;
8303 struct wpa_ssid *persistent;
8304 struct psk_list_entry *p, *last;
8305
8306 if (psk_len != sizeof(p->psk))
8307 return;
8308
8309 if (p2p_dev_addr) {
8310 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
8311 " p2p_dev_addr=" MACSTR,
8312 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
8313 if (is_zero_ether_addr(p2p_dev_addr))
8314 p2p_dev_addr = NULL;
8315 } else {
8316 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
8317 MAC2STR(mac_addr));
8318 }
8319
8320 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
8321 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
8322 /* To be added to persistent group once created */
8323 if (wpa_s->global->add_psk == NULL) {
8324 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
8325 if (wpa_s->global->add_psk == NULL)
8326 return;
8327 }
8328 p = wpa_s->global->add_psk;
8329 if (p2p_dev_addr) {
8330 p->p2p = 1;
8331 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8332 } else {
8333 p->p2p = 0;
8334 os_memcpy(p->addr, mac_addr, ETH_ALEN);
8335 }
8336 os_memcpy(p->psk, psk, psk_len);
8337 return;
8338 }
8339
8340 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
8341 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
8342 return;
8343 }
8344
8345 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
8346 ssid->ssid_len);
8347 if (!persistent) {
8348 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
8349 return;
8350 }
8351
8352 p = os_zalloc(sizeof(*p));
8353 if (p == NULL)
8354 return;
8355 if (p2p_dev_addr) {
8356 p->p2p = 1;
8357 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8358 } else {
8359 p->p2p = 0;
8360 os_memcpy(p->addr, mac_addr, ETH_ALEN);
8361 }
8362 os_memcpy(p->psk, psk, psk_len);
8363
8364 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
8365 (last = dl_list_last(&persistent->psk_list,
8366 struct psk_list_entry, list))) {
8367 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
8368 MACSTR " (p2p=%u) to make room for a new one",
8369 MAC2STR(last->addr), last->p2p);
8370 dl_list_del(&last->list);
8371 os_free(last);
8372 }
8373
8374 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
8375 p2p_dev_addr ? p2p_dev_addr : mac_addr,
8376 p2p_dev_addr == NULL);
8377 if (p2p_dev_addr) {
8378 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
8379 MACSTR, MAC2STR(p2p_dev_addr));
8380 } else {
8381 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
8382 MAC2STR(mac_addr));
8383 }
8384 dl_list_add(&persistent->psk_list, &p->list);
8385
8386 if (wpa_s->parent->conf->update_config &&
8387 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
8388 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
8389 }
8390
8391
8392 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
8393 struct wpa_ssid *s, const u8 *addr,
8394 int iface_addr)
8395 {
8396 int res;
8397
8398 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
8399 if (res > 0 && wpa_s->conf->update_config &&
8400 wpa_config_write(wpa_s->confname, wpa_s->conf))
8401 wpa_dbg(wpa_s, MSG_DEBUG,
8402 "P2P: Failed to update configuration");
8403 }
8404
8405
8406 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
8407 const u8 *peer, int iface_addr)
8408 {
8409 struct hostapd_data *hapd;
8410 struct hostapd_wpa_psk *psk, *prev, *rem;
8411 struct sta_info *sta;
8412
8413 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
8414 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
8415 return;
8416
8417 /* Remove per-station PSK entry */
8418 hapd = wpa_s->ap_iface->bss[0];
8419 prev = NULL;
8420 psk = hapd->conf->ssid.wpa_psk;
8421 while (psk) {
8422 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
8423 (!iface_addr &&
8424 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
8425 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
8426 MACSTR " iface_addr=%d",
8427 MAC2STR(peer), iface_addr);
8428 if (prev)
8429 prev->next = psk->next;
8430 else
8431 hapd->conf->ssid.wpa_psk = psk->next;
8432 rem = psk;
8433 psk = psk->next;
8434 os_free(rem);
8435 } else {
8436 prev = psk;
8437 psk = psk->next;
8438 }
8439 }
8440
8441 /* Disconnect from group */
8442 if (iface_addr)
8443 sta = ap_get_sta(hapd, peer);
8444 else
8445 sta = ap_get_sta_p2p(hapd, peer);
8446 if (sta) {
8447 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8448 " (iface_addr=%d) from group",
8449 MAC2STR(peer), iface_addr);
8450 hostapd_drv_sta_deauth(hapd, sta->addr,
8451 WLAN_REASON_DEAUTH_LEAVING);
8452 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8453 }
8454 }
8455
8456
8457 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8458 int iface_addr)
8459 {
8460 struct wpa_ssid *s;
8461 struct wpa_supplicant *w;
8462
8463 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8464
8465 /* Remove from any persistent group */
8466 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
8467 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8468 continue;
8469 if (!iface_addr)
8470 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
8471 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
8472 }
8473
8474 /* Remove from any operating group */
8475 for (w = wpa_s->global->ifaces; w; w = w->next)
8476 wpas_p2p_remove_client_go(w, peer, iface_addr);
8477 }
8478
8479
8480 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8481 {
8482 struct wpa_supplicant *wpa_s = eloop_ctx;
8483 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8484 }
8485
8486
8487 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8488 {
8489 struct wpa_supplicant *wpa_s = eloop_ctx;
8490
8491 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8492 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8493 }
8494
8495
8496 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8497 struct wpa_ssid *ssid)
8498 {
8499 struct wpa_supplicant *iface;
8500
8501 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8502 if (!iface->current_ssid ||
8503 iface->current_ssid->frequency == freq ||
8504 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8505 !iface->current_ssid->p2p_group))
8506 continue;
8507
8508 /* Remove the connection with least priority */
8509 if (!wpas_is_p2p_prioritized(iface)) {
8510 /* STA connection has priority over existing
8511 * P2P connection, so remove the interface. */
8512 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8513 eloop_register_timeout(0, 0,
8514 wpas_p2p_group_freq_conflict,
8515 iface, NULL);
8516 /* If connection in progress is P2P connection, do not
8517 * proceed for the connection. */
8518 if (wpa_s == iface)
8519 return -1;
8520 else
8521 return 0;
8522 } else {
8523 /* P2P connection has priority, disable the STA network
8524 */
8525 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8526 ssid);
8527 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8528 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8529 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8530 ETH_ALEN);
8531 /* If P2P connection is in progress, continue
8532 * connecting...*/
8533 if (wpa_s == iface)
8534 return 0;
8535 else
8536 return -1;
8537 }
8538 }
8539
8540 return 0;
8541 }
8542
8543
8544 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8545 {
8546 struct wpa_ssid *ssid = wpa_s->current_ssid;
8547
8548 if (ssid == NULL || !ssid->p2p_group)
8549 return 0;
8550
8551 if (wpa_s->p2p_last_4way_hs_fail &&
8552 wpa_s->p2p_last_4way_hs_fail == ssid) {
8553 u8 go_dev_addr[ETH_ALEN];
8554 struct wpa_ssid *persistent;
8555
8556 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8557 ssid->ssid,
8558 ssid->ssid_len) <= 0) {
8559 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8560 goto disconnect;
8561 }
8562
8563 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8564 MACSTR, MAC2STR(go_dev_addr));
8565 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
8566 ssid->ssid,
8567 ssid->ssid_len);
8568 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8569 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8570 goto disconnect;
8571 }
8572 wpa_msg_global(wpa_s->parent, MSG_INFO,
8573 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8574 persistent->id);
8575 disconnect:
8576 wpa_s->p2p_last_4way_hs_fail = NULL;
8577 /*
8578 * Remove the group from a timeout to avoid issues with caller
8579 * continuing to use the interface if this is on a P2P group
8580 * interface.
8581 */
8582 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8583 wpa_s, NULL);
8584 return 1;
8585 }
8586
8587 wpa_s->p2p_last_4way_hs_fail = ssid;
8588 return 0;
8589 }
8590
8591
8592 #ifdef CONFIG_WPS_NFC
8593
8594 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8595 struct wpabuf *p2p)
8596 {
8597 struct wpabuf *ret;
8598 size_t wsc_len;
8599
8600 if (p2p == NULL) {
8601 wpabuf_free(wsc);
8602 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8603 return NULL;
8604 }
8605
8606 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8607 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8608 if (ret == NULL) {
8609 wpabuf_free(wsc);
8610 wpabuf_free(p2p);
8611 return NULL;
8612 }
8613
8614 wpabuf_put_be16(ret, wsc_len);
8615 if (wsc)
8616 wpabuf_put_buf(ret, wsc);
8617 wpabuf_put_be16(ret, wpabuf_len(p2p));
8618 wpabuf_put_buf(ret, p2p);
8619
8620 wpabuf_free(wsc);
8621 wpabuf_free(p2p);
8622 wpa_hexdump_buf(MSG_DEBUG,
8623 "P2P: Generated NFC connection handover message", ret);
8624
8625 if (ndef && ret) {
8626 struct wpabuf *tmp;
8627 tmp = ndef_build_p2p(ret);
8628 wpabuf_free(ret);
8629 if (tmp == NULL) {
8630 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8631 return NULL;
8632 }
8633 ret = tmp;
8634 }
8635
8636 return ret;
8637 }
8638
8639
8640 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8641 struct wpa_ssid **ssid, u8 *go_dev_addr)
8642 {
8643 struct wpa_supplicant *iface;
8644
8645 if (go_dev_addr)
8646 os_memset(go_dev_addr, 0, ETH_ALEN);
8647 if (ssid)
8648 *ssid = NULL;
8649 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8650 if (iface->wpa_state < WPA_ASSOCIATING ||
8651 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8652 !iface->current_ssid->p2p_group ||
8653 iface->current_ssid->mode != WPAS_MODE_INFRA)
8654 continue;
8655 if (ssid)
8656 *ssid = iface->current_ssid;
8657 if (go_dev_addr)
8658 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8659 return iface->assoc_freq;
8660 }
8661 return 0;
8662 }
8663
8664
8665 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8666 int ndef)
8667 {
8668 struct wpabuf *wsc, *p2p;
8669 struct wpa_ssid *ssid;
8670 u8 go_dev_addr[ETH_ALEN];
8671 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8672
8673 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8674 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8675 return NULL;
8676 }
8677
8678 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8679 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8680 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8681 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8682 return NULL;
8683 }
8684
8685 if (cli_freq == 0) {
8686 wsc = wps_build_nfc_handover_req_p2p(
8687 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8688 } else
8689 wsc = NULL;
8690 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8691 go_dev_addr, ssid ? ssid->ssid : NULL,
8692 ssid ? ssid->ssid_len : 0);
8693
8694 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8695 }
8696
8697
8698 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8699 int ndef, int tag)
8700 {
8701 struct wpabuf *wsc, *p2p;
8702 struct wpa_ssid *ssid;
8703 u8 go_dev_addr[ETH_ALEN];
8704 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8705
8706 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8707 return NULL;
8708
8709 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8710 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8711 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8712 return NULL;
8713
8714 if (cli_freq == 0) {
8715 wsc = wps_build_nfc_handover_sel_p2p(
8716 wpa_s->parent->wps,
8717 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8718 DEV_PW_NFC_CONNECTION_HANDOVER,
8719 wpa_s->conf->wps_nfc_dh_pubkey,
8720 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8721 } else
8722 wsc = NULL;
8723 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8724 go_dev_addr, ssid ? ssid->ssid : NULL,
8725 ssid ? ssid->ssid_len : 0);
8726
8727 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8728 }
8729
8730
8731 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8732 struct p2p_nfc_params *params)
8733 {
8734 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8735 "connection handover (freq=%d)",
8736 params->go_freq);
8737
8738 if (params->go_freq && params->go_ssid_len) {
8739 wpa_s->p2p_wps_method = WPS_NFC;
8740 wpa_s->pending_join_wps_method = WPS_NFC;
8741 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8742 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8743 ETH_ALEN);
8744 return wpas_p2p_join_start(wpa_s, params->go_freq,
8745 params->go_ssid,
8746 params->go_ssid_len);
8747 }
8748
8749 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8750 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8751 params->go_freq, -1, 0, 1, 1);
8752 }
8753
8754
8755 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8756 struct p2p_nfc_params *params, int tag)
8757 {
8758 int res, persistent;
8759 struct wpa_ssid *ssid;
8760
8761 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8762 "connection handover");
8763 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8764 ssid = wpa_s->current_ssid;
8765 if (ssid == NULL)
8766 continue;
8767 if (ssid->mode != WPAS_MODE_P2P_GO)
8768 continue;
8769 if (wpa_s->ap_iface == NULL)
8770 continue;
8771 break;
8772 }
8773 if (wpa_s == NULL) {
8774 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8775 return -1;
8776 }
8777
8778 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8779 DEV_PW_NFC_CONNECTION_HANDOVER &&
8780 !wpa_s->parent->p2p_oob_dev_pw) {
8781 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8782 return -1;
8783 }
8784 res = wpas_ap_wps_add_nfc_pw(
8785 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8786 wpa_s->parent->p2p_oob_dev_pw,
8787 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8788 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8789 if (res)
8790 return res;
8791
8792 if (!tag) {
8793 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8794 return 0;
8795 }
8796
8797 if (!params->peer ||
8798 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8799 return 0;
8800
8801 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8802 " to join", MAC2STR(params->peer->p2p_device_addr));
8803
8804 wpa_s->global->p2p_invite_group = wpa_s;
8805 persistent = ssid->p2p_persistent_group &&
8806 wpas_p2p_get_persistent(wpa_s->parent,
8807 params->peer->p2p_device_addr,
8808 ssid->ssid, ssid->ssid_len);
8809 wpa_s->parent->pending_invite_ssid_id = -1;
8810
8811 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8812 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8813 ssid->ssid, ssid->ssid_len, ssid->frequency,
8814 wpa_s->global->p2p_dev_addr, persistent, 0,
8815 wpa_s->parent->p2p_oob_dev_pw_id);
8816 }
8817
8818
8819 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8820 struct p2p_nfc_params *params,
8821 int forced_freq)
8822 {
8823 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8824 "connection handover");
8825 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8826 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8827 forced_freq, -1, 0, 1, 1);
8828 }
8829
8830
8831 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8832 struct p2p_nfc_params *params,
8833 int forced_freq)
8834 {
8835 int res;
8836
8837 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8838 "connection handover");
8839 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8840 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8841 forced_freq, -1, 0, 1, 1);
8842 if (res)
8843 return res;
8844
8845 res = wpas_p2p_listen(wpa_s, 60);
8846 if (res) {
8847 p2p_unauthorize(wpa_s->global->p2p,
8848 params->peer->p2p_device_addr);
8849 }
8850
8851 return res;
8852 }
8853
8854
8855 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8856 const struct wpabuf *data,
8857 int sel, int tag, int forced_freq)
8858 {
8859 const u8 *pos, *end;
8860 u16 len, id;
8861 struct p2p_nfc_params params;
8862 int res;
8863
8864 os_memset(&params, 0, sizeof(params));
8865 params.sel = sel;
8866
8867 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8868
8869 pos = wpabuf_head(data);
8870 end = pos + wpabuf_len(data);
8871
8872 if (end - pos < 2) {
8873 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8874 "attributes");
8875 return -1;
8876 }
8877 len = WPA_GET_BE16(pos);
8878 pos += 2;
8879 if (len > end - pos) {
8880 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8881 "attributes");
8882 return -1;
8883 }
8884 params.wsc_attr = pos;
8885 params.wsc_len = len;
8886 pos += len;
8887
8888 if (end - pos < 2) {
8889 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8890 "attributes");
8891 return -1;
8892 }
8893 len = WPA_GET_BE16(pos);
8894 pos += 2;
8895 if (len > end - pos) {
8896 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8897 "attributes");
8898 return -1;
8899 }
8900 params.p2p_attr = pos;
8901 params.p2p_len = len;
8902 pos += len;
8903
8904 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8905 params.wsc_attr, params.wsc_len);
8906 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8907 params.p2p_attr, params.p2p_len);
8908 if (pos < end) {
8909 wpa_hexdump(MSG_DEBUG,
8910 "P2P: Ignored extra data after P2P attributes",
8911 pos, end - pos);
8912 }
8913
8914 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
8915 if (res)
8916 return res;
8917
8918 if (params.next_step == NO_ACTION)
8919 return 0;
8920
8921 if (params.next_step == BOTH_GO) {
8922 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8923 MAC2STR(params.peer->p2p_device_addr));
8924 return 0;
8925 }
8926
8927 if (params.next_step == PEER_CLIENT) {
8928 if (!is_zero_ether_addr(params.go_dev_addr)) {
8929 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8930 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8931 " ssid=\"%s\"",
8932 MAC2STR(params.peer->p2p_device_addr),
8933 params.go_freq,
8934 MAC2STR(params.go_dev_addr),
8935 wpa_ssid_txt(params.go_ssid,
8936 params.go_ssid_len));
8937 } else {
8938 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8939 "peer=" MACSTR " freq=%d",
8940 MAC2STR(params.peer->p2p_device_addr),
8941 params.go_freq);
8942 }
8943 return 0;
8944 }
8945
8946 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8947 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8948 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8949 return 0;
8950 }
8951
8952 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8953 wpa_s->p2p_oob_dev_pw = NULL;
8954
8955 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8956 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8957 "received");
8958 return -1;
8959 }
8960
8961 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8962 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8963 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8964 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8965 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8966 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8967 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8968
8969 if (tag) {
8970 if (id < 0x10) {
8971 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8972 "peer OOB Device Password Id %u", id);
8973 return -1;
8974 }
8975 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8976 "Device Password Id %u", id);
8977 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8978 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8979 params.oob_dev_pw_len -
8980 WPS_OOB_PUBKEY_HASH_LEN - 2);
8981 wpa_s->p2p_oob_dev_pw_id = id;
8982 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8983 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8984 params.oob_dev_pw_len -
8985 WPS_OOB_PUBKEY_HASH_LEN - 2);
8986 if (wpa_s->p2p_oob_dev_pw == NULL)
8987 return -1;
8988
8989 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8990 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8991 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8992 return -1;
8993 } else {
8994 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8995 "without Device Password");
8996 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8997 }
8998
8999 switch (params.next_step) {
9000 case NO_ACTION:
9001 case BOTH_GO:
9002 case PEER_CLIENT:
9003 /* already covered above */
9004 return 0;
9005 case JOIN_GROUP:
9006 return wpas_p2p_nfc_join_group(wpa_s, &params);
9007 case AUTH_JOIN:
9008 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
9009 case INIT_GO_NEG:
9010 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
9011 case RESP_GO_NEG:
9012 /* TODO: use own OOB Dev Pw */
9013 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
9014 }
9015
9016 return -1;
9017 }
9018
9019
9020 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
9021 const struct wpabuf *data, int forced_freq)
9022 {
9023 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9024 return -1;
9025
9026 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
9027 }
9028
9029
9030 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
9031 const struct wpabuf *req,
9032 const struct wpabuf *sel, int forced_freq)
9033 {
9034 struct wpabuf *tmp;
9035 int ret;
9036
9037 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9038 return -1;
9039
9040 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
9041
9042 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
9043 wpabuf_head(req), wpabuf_len(req));
9044 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
9045 wpabuf_head(sel), wpabuf_len(sel));
9046 if (forced_freq)
9047 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
9048 tmp = ndef_parse_p2p(init ? sel : req);
9049 if (tmp == NULL) {
9050 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
9051 return -1;
9052 }
9053
9054 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
9055 forced_freq);
9056 wpabuf_free(tmp);
9057
9058 return ret;
9059 }
9060
9061
9062 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
9063 {
9064 const u8 *if_addr;
9065 int go_intent = wpa_s->conf->p2p_go_intent;
9066 struct wpa_supplicant *iface;
9067
9068 if (wpa_s->global->p2p == NULL)
9069 return -1;
9070
9071 if (!enabled) {
9072 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
9073 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
9074 {
9075 if (!iface->ap_iface)
9076 continue;
9077 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
9078 }
9079 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
9080 0, NULL);
9081 if (wpa_s->p2p_nfc_tag_enabled)
9082 wpas_p2p_remove_pending_group_interface(wpa_s);
9083 wpa_s->p2p_nfc_tag_enabled = 0;
9084 return 0;
9085 }
9086
9087 if (wpa_s->global->p2p_disabled)
9088 return -1;
9089
9090 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
9091 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
9092 wpa_s->conf->wps_nfc_dev_pw == NULL ||
9093 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
9094 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
9095 "to allow static handover cases");
9096 return -1;
9097 }
9098
9099 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
9100
9101 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
9102 wpabuf_free(wpa_s->p2p_oob_dev_pw);
9103 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
9104 if (wpa_s->p2p_oob_dev_pw == NULL)
9105 return -1;
9106 wpa_s->p2p_peer_oob_pk_hash_known = 0;
9107
9108 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
9109 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
9110 /*
9111 * P2P Group Interface present and the command came on group
9112 * interface, so enable the token for the current interface.
9113 */
9114 wpa_s->create_p2p_iface = 0;
9115 } else {
9116 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
9117 }
9118
9119 if (wpa_s->create_p2p_iface) {
9120 enum wpa_driver_if_type iftype;
9121 /* Prepare to add a new interface for the group */
9122 iftype = WPA_IF_P2P_GROUP;
9123 if (go_intent == 15)
9124 iftype = WPA_IF_P2P_GO;
9125 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
9126 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
9127 "interface for the group");
9128 return -1;
9129 }
9130
9131 if_addr = wpa_s->pending_interface_addr;
9132 } else
9133 if_addr = wpa_s->own_addr;
9134
9135 wpa_s->p2p_nfc_tag_enabled = enabled;
9136
9137 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
9138 struct hostapd_data *hapd;
9139 if (iface->ap_iface == NULL)
9140 continue;
9141 hapd = iface->ap_iface->bss[0];
9142 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
9143 hapd->conf->wps_nfc_dh_pubkey =
9144 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
9145 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
9146 hapd->conf->wps_nfc_dh_privkey =
9147 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
9148 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
9149 hapd->conf->wps_nfc_dev_pw =
9150 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
9151 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
9152
9153 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
9154 wpa_dbg(iface, MSG_DEBUG,
9155 "P2P: Failed to enable NFC Tag for GO");
9156 }
9157 }
9158 p2p_set_authorized_oob_dev_pw_id(
9159 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
9160 if_addr);
9161
9162 return 0;
9163 }
9164
9165 #endif /* CONFIG_WPS_NFC */
9166
9167
9168 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
9169 struct wpa_used_freq_data *freqs,
9170 unsigned int num)
9171 {
9172 u8 curr_chan, cand, chan;
9173 unsigned int i;
9174
9175 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
9176 for (i = 0, cand = 0; i < num; i++) {
9177 ieee80211_freq_to_chan(freqs[i].freq, &chan);
9178 if (curr_chan == chan) {
9179 cand = 0;
9180 break;
9181 }
9182
9183 if (chan == 1 || chan == 6 || chan == 11)
9184 cand = chan;
9185 }
9186
9187 if (cand) {
9188 wpa_dbg(wpa_s, MSG_DEBUG,
9189 "P2P: Update Listen channel to %u based on operating channel",
9190 cand);
9191 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
9192 }
9193 }
9194
9195
9196 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9197 {
9198 struct wpa_used_freq_data *freqs;
9199 unsigned int num = wpa_s->num_multichan_concurrent;
9200
9201 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9202 return;
9203
9204 /*
9205 * If possible, optimize the Listen channel to be a channel that is
9206 * already used by one of the other interfaces.
9207 */
9208 if (!wpa_s->conf->p2p_optimize_listen_chan)
9209 return;
9210
9211 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
9212 return;
9213
9214 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
9215 if (!freqs)
9216 return;
9217
9218 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
9219
9220 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
9221 os_free(freqs);
9222 }
9223
9224
9225 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9226 {
9227 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9228 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9229 "the management interface is being removed");
9230 wpas_p2p_deinit_global(wpa_s->global);
9231 }
9232 }
9233
9234
9235 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9236 {
9237 if (wpa_s->ap_iface->bss)
9238 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9239 wpas_p2p_group_deinit(wpa_s);
9240 }
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