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P2P: Set FORCE_FREQ flag as part of p2p_prepare_channel()
[thirdparty/hostap.git] / src / p2p / p2p.c
CommitLineData
b22128ef
JM		 1/*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
e22d4d95
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
b22128ef
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "common/ieee802_11_common.h"
8aebb0e4 15#include "common/wpa_ctrl.h"
b22128ef
JM		 16#include "wps/wps_i.h"
17#include "p2p_i.h"
18#include "p2p.h"
19
20
21static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
22static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
23static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
24 const u8 *sa, const u8 *data, size_t len,
25 int rx_freq);
26static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
27 const u8 *sa, const u8 *data,
28 size_t len);
29static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 30static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 31
32
40c03fd4
JM		 33/*
34 * p2p_scan recovery timeout
35 *
36 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
37 * timeout for this to avoid hitting P2P timeout unnecessarily.
38 */
39#define P2P_SCAN_TIMEOUT 35
40
b22128ef
JM		 41/**
42 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
43 * entries will be removed
44 */
45#define P2P_PEER_EXPIRATION_AGE 300
46
47#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
48
49static void p2p_expire_peers(struct p2p_data *p2p)
50{
51 struct p2p_device *dev, *n;
52 struct os_time now;
1d277f02 53 size_t i;
b22128ef
JM		 54
55 os_get_time(&now);
56 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
57 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
58 continue;
b1aebbc4
JM		 59
60 if (p2p->cfg->go_connected &&
61 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
62 dev->info.p2p_device_addr)) {
63 /*
64 * We are connected as a client to a group in which the
65 * peer is the GO, so do not expire the peer entry.
66 */
67 os_get_time(&dev->last_seen);
68 continue;
69 }
70
1d277f02
JM		 71 for (i = 0; i < p2p->num_groups; i++) {
72 if (p2p_group_is_client_connected(
73 p2p->groups[i], dev->info.p2p_device_addr))
74 break;
75 }
76 if (i < p2p->num_groups) {
77 /*
78 * The peer is connected as a client in a group where
79 * we are the GO, so do not expire the peer entry.
80 */
81 os_get_time(&dev->last_seen);
82 continue;
83 }
84
b22128ef 85 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
c5db8e51 86 "entry " MACSTR, MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 87 dl_list_del(&dev->list);
88 p2p_device_free(p2p, dev);
89 }
90}
91
92
93static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
94{
95 struct p2p_data *p2p = eloop_ctx;
96 p2p_expire_peers(p2p);
97 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
98 p2p_expiration_timeout, p2p, NULL);
99}
100
101
102static const char * p2p_state_txt(int state)
103{
104 switch (state) {
105 case P2P_IDLE:
106 return "IDLE";
107 case P2P_SEARCH:
108 return "SEARCH";
109 case P2P_CONNECT:
110 return "CONNECT";
111 case P2P_CONNECT_LISTEN:
112 return "CONNECT_LISTEN";
113 case P2P_GO_NEG:
114 return "GO_NEG";
115 case P2P_LISTEN_ONLY:
116 return "LISTEN_ONLY";
117 case P2P_WAIT_PEER_CONNECT:
118 return "WAIT_PEER_CONNECT";
119 case P2P_WAIT_PEER_IDLE:
120 return "WAIT_PEER_IDLE";
121 case P2P_SD_DURING_FIND:
122 return "SD_DURING_FIND";
123 case P2P_PROVISIONING:
124 return "PROVISIONING";
125 case P2P_PD_DURING_FIND:
126 return "PD_DURING_FIND";
127 case P2P_INVITE:
128 return "INVITE";
129 case P2P_INVITE_LISTEN:
130 return "INVITE_LISTEN";
39185dfa
JM		 131 case P2P_SEARCH_WHEN_READY:
132 return "SEARCH_WHEN_READY";
99fcd404
JM		 133 case P2P_CONTINUE_SEARCH_WHEN_READY:
134 return "CONTINUE_SEARCH_WHEN_READY";
b22128ef
JM		 135 default:
136 return "?";
137 }
138}
139
140
ec437d9e
JJ		 141u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
142{
143 struct p2p_device *dev = NULL;
144
145 if (!addr || !p2p)
146 return 0;
147
148 dev = p2p_get_device(p2p, addr);
149 if (dev)
150 return dev->wps_prov_info;
151 else
152 return 0;
153}
154
155
10531d21 156void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 157{
158 struct p2p_device *dev = NULL;
159
10531d21 160 if (!addr || !p2p)
ec437d9e
JJ		 161 return;
162
10531d21 163 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 164 if (dev)
165 dev->wps_prov_info = 0;
166}
167
168
b22128ef
JM		 169void p2p_set_state(struct p2p_data *p2p, int new_state)
170{
171 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
172 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
173 p2p->state = new_state;
174}
175
176
177void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
178{
179 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
180 "P2P: Set timeout (state=%s): %u.%06u sec",
181 p2p_state_txt(p2p->state), sec, usec);
182 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
183 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
184}
185
186
187void p2p_clear_timeout(struct p2p_data *p2p)
188{
189 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
190 p2p_state_txt(p2p->state));
191 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
192}
193
194
195void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
196 int status)
197{
198 struct p2p_go_neg_results res;
199 p2p_clear_timeout(p2p);
200 p2p_set_state(p2p, P2P_IDLE);
eb916eb8
JB		 201 if (p2p->go_neg_peer)
202 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
b22128ef
JM		 203 p2p->go_neg_peer = NULL;
204
205 os_memset(&res, 0, sizeof(res));
206 res.status = status;
207 if (peer) {
c5db8e51 208 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 209 ETH_ALEN);
210 os_memcpy(res.peer_interface_addr, peer->intended_addr,
211 ETH_ALEN);
212 }
213 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
214}
215
216
96beff11 217static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 218{
219 unsigned int r, tu;
220 int freq;
221 struct wpabuf *ies;
222
223 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
224 "P2P: Starting short listen state (state=%s)",
225 p2p_state_txt(p2p->state));
226
227 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
228 p2p->cfg->channel);
229 if (freq < 0) {
230 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
231 "P2P: Unknown regulatory class/channel");
232 return;
233 }
234
235 os_get_random((u8 *) &r, sizeof(r));
236 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
237 p2p->min_disc_int) * 100;
96beff11
JM		 238 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
239 tu = p2p->max_disc_tu;
240 if (!dev_disc && tu < 100)
241 tu = 100; /* Need to wait in non-device discovery use cases */
242 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
243 tu = p2p->cfg->max_listen * 1000 / 1024;
244
245 if (tu == 0) {
246 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip listen state "
247 "since duration was 0 TU");
248 p2p_set_timeout(p2p, 0, 0);
249 return;
250 }
b22128ef
JM		 251
252 p2p->pending_listen_freq = freq;
253 p2p->pending_listen_sec = 0;
254 p2p->pending_listen_usec = 1024 * tu;
255
256 ies = p2p_build_probe_resp_ies(p2p);
257 if (ies == NULL)
258 return;
259
260 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
261 ies) < 0) {
262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
263 "P2P: Failed to start listen mode");
264 p2p->pending_listen_freq = 0;
265 }
266 wpabuf_free(ies);
267}
268
269
270int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
271{
272 int freq;
273 struct wpabuf *ies;
274
275 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
276 "P2P: Going to listen(only) state");
277
278 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
279 p2p->cfg->channel);
280 if (freq < 0) {
281 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
282 "P2P: Unknown regulatory class/channel");
283 return -1;
284 }
285
286 p2p->pending_listen_freq = freq;
287 p2p->pending_listen_sec = timeout / 1000;
288 p2p->pending_listen_usec = (timeout % 1000) * 1000;
289
290 if (p2p->p2p_scan_running) {
5b9cecaf 291 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
d9bdba9f
JM		 292 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
293 "P2P: p2p_scan running - connect is already "
294 "pending - skip listen");
295 return 0;
296 }
b22128ef
JM		 297 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
298 "P2P: p2p_scan running - delay start of listen state");
299 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
300 return 0;
301 }
302
303 ies = p2p_build_probe_resp_ies(p2p);
304 if (ies == NULL)
305 return -1;
306
307 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
308 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
309 "P2P: Failed to start listen mode");
310 p2p->pending_listen_freq = 0;
311 wpabuf_free(ies);
312 return -1;
313 }
314 wpabuf_free(ies);
315
316 p2p_set_state(p2p, P2P_LISTEN_ONLY);
317
318 return 0;
319}
320
321
322static void p2p_device_clear_reported(struct p2p_data *p2p)
323{
324 struct p2p_device *dev;
325 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
326 dev->flags &= ~P2P_DEV_REPORTED;
327}
328
329
330/**
331 * p2p_get_device - Fetch a peer entry
332 * @p2p: P2P module context from p2p_init()
333 * @addr: P2P Device Address of the peer
334 * Returns: Pointer to the device entry or %NULL if not found
335 */
336struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
337{
338 struct p2p_device *dev;
339 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 340 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 341 return dev;
342 }
343 return NULL;
344}
345
346
347/**
348 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
349 * @p2p: P2P module context from p2p_init()
350 * @addr: P2P Interface Address of the peer
351 * Returns: Pointer to the device entry or %NULL if not found
352 */
353struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
354 const u8 *addr)
355{
356 struct p2p_device *dev;
357 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
358 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
359 return dev;
360 }
361 return NULL;
362}
363
364
365/**
366 * p2p_create_device - Create a peer entry
367 * @p2p: P2P module context from p2p_init()
368 * @addr: P2P Device Address of the peer
369 * Returns: Pointer to the device entry or %NULL on failure
370 *
371 * If there is already an entry for the peer, it will be returned instead of
372 * creating a new one.
373 */
374static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
375 const u8 *addr)
376{
377 struct p2p_device *dev, *oldest = NULL;
378 size_t count = 0;
379
380 dev = p2p_get_device(p2p, addr);
381 if (dev)
382 return dev;
383
384 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
385 count++;
386 if (oldest == NULL ||
387 os_time_before(&dev->last_seen, &oldest->last_seen))
388 oldest = dev;
389 }
390 if (count + 1 > p2p->cfg->max_peers && oldest) {
391 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
392 "P2P: Remove oldest peer entry to make room for a new "
393 "peer");
394 dl_list_del(&oldest->list);
395 p2p_device_free(p2p, oldest);
396 }
397
398 dev = os_zalloc(sizeof(*dev));
399 if (dev == NULL)
400 return NULL;
401 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 402 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 403
404 return dev;
405}
406
407
408static void p2p_copy_client_info(struct p2p_device *dev,
409 struct p2p_client_info *cli)
410{
c5db8e51
KRK		 411 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
412 dev->info.device_name[cli->dev_name_len] = '\0';
413 dev->info.dev_capab = cli->dev_capab;
414 dev->info.config_methods = cli->config_methods;
415 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 416 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
417 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
418 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 419}
420
421
422static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
423 const u8 *go_interface_addr, int freq,
424 const u8 *gi, size_t gi_len)
425{
426 struct p2p_group_info info;
427 size_t c;
428 struct p2p_device *dev;
429
430 if (gi == NULL)
431 return 0;
432
433 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
434 return -1;
435
436 /*
437 * Clear old data for this group; if the devices are still in the
438 * group, the information will be restored in the loop following this.
439 */
440 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 441 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 442 ETH_ALEN) == 0) {
443 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
444 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
445 }
446 }
447
448 for (c = 0; c < info.num_clients; c++) {
449 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 450 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
451 ETH_ALEN) == 0)
452 continue; /* ignore our own entry */
b22128ef
JM		 453 dev = p2p_get_device(p2p, cli->p2p_device_addr);
454 if (dev) {
b22128ef 455 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 456 P2P_DEV_PROBE_REQ_ONLY)) {
457 /*
458 * Update information since we have not
459 * received this directly from the client.
460 */
b22128ef 461 p2p_copy_client_info(dev, cli);
f33bc035
JM		 462 } else {
463 /*
464 * Need to update P2P Client Discoverability
465 * flag since it is valid only in P2P Group
466 * Info attribute.
467 */
468 dev->info.dev_capab &=
469 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
470 dev->info.dev_capab |=
471 cli->dev_capab &
472 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
473 }
b22128ef
JM		 474 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
475 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
476 }
477 } else {
478 dev = p2p_create_device(p2p, cli->p2p_device_addr);
479 if (dev == NULL)
480 continue;
481 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
482 p2p_copy_client_info(dev, cli);
483 dev->oper_freq = freq;
c5db8e51
KRK		 484 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
485 dev->info.p2p_device_addr,
8fd7dc1b
JB		 486 &dev->info, 1);
487 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 488 }
489
490 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
491 ETH_ALEN);
492 os_get_time(&dev->last_seen);
493 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
494 os_memcpy(dev->member_in_go_iface, go_interface_addr,
495 ETH_ALEN);
496 }
497
498 return 0;
499}
500
501
b67d0d9e
JM		 502static void p2p_copy_wps_info(struct p2p_device *dev, int probe_req,
503 const struct p2p_message *msg)
504{
505 os_memcpy(dev->info.device_name, msg->device_name,
506 sizeof(dev->info.device_name));
507
508 if (msg->manufacturer &&
509 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
510 os_memset(dev->info.manufacturer, 0,
511 sizeof(dev->info.manufacturer));
512 os_memcpy(dev->info.manufacturer, msg->manufacturer,
513 msg->manufacturer_len);
514 }
515
516 if (msg->model_name &&
517 msg->model_name_len < sizeof(dev->info.model_name)) {
518 os_memset(dev->info.model_name, 0,
519 sizeof(dev->info.model_name));
520 os_memcpy(dev->info.model_name, msg->model_name,
521 msg->model_name_len);
522 }
523
524 if (msg->model_number &&
525 msg->model_number_len < sizeof(dev->info.model_number)) {
526 os_memset(dev->info.model_number, 0,
527 sizeof(dev->info.model_number));
528 os_memcpy(dev->info.model_number, msg->model_number,
529 msg->model_number_len);
530 }
531
532 if (msg->serial_number &&
533 msg->serial_number_len < sizeof(dev->info.serial_number)) {
534 os_memset(dev->info.serial_number, 0,
535 sizeof(dev->info.serial_number));
536 os_memcpy(dev->info.serial_number, msg->serial_number,
537 msg->serial_number_len);
538 }
539
540 if (msg->pri_dev_type)
541 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
542 sizeof(dev->info.pri_dev_type));
543 else if (msg->wps_pri_dev_type)
544 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
545 sizeof(dev->info.pri_dev_type));
546
547 if (msg->wps_sec_dev_type_list) {
548 os_memcpy(dev->info.wps_sec_dev_type_list,
549 msg->wps_sec_dev_type_list,
550 msg->wps_sec_dev_type_list_len);
551 dev->info.wps_sec_dev_type_list_len =
552 msg->wps_sec_dev_type_list_len;
553 }
554
555 if (msg->capability) {
f33bc035
JM		 556 /*
557 * P2P Client Discoverability bit is reserved in all frames
558 * that use this function, so do not change its value here.
559 */
560 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
561 dev->info.dev_capab |= msg->capability[0] &
562 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 563 dev->info.group_capab = msg->capability[1];
564 }
565
566 if (msg->ext_listen_timing) {
567 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
568 dev->ext_listen_interval =
569 WPA_GET_LE16(msg->ext_listen_timing + 2);
570 }
571
572 if (!probe_req) {
573 dev->info.config_methods = msg->config_methods ?
574 msg->config_methods : msg->wps_config_methods;
575 }
576}
577
578
b22128ef 579/**
c98b83f2 580 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 581 * @p2p: P2P module context from p2p_init()
582 * @addr: Source address of Beacon or Probe Response frame (may be either
583 * P2P Device Address or P2P Interface Address)
584 * @level: Signal level (signal strength of the received frame from the peer)
585 * @freq: Frequency on which the Beacon or Probe Response frame was received
3dfd0484 586 * @age_ms: Age of the information in milliseconds
b22128ef
JM		 587 * @ies: IEs from the Beacon or Probe Response frame
588 * @ies_len: Length of ies buffer in octets
c98b83f2 589 * @scan_res: Whether this was based on scan results
b22128ef
JM		 590 * Returns: 0 on success, -1 on failure
591 *
592 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 593 * to the peer table. This function can also be used with some other frames
594 * like Provision Discovery Request that contains P2P Capability and P2P Device
595 * Info attributes.
b22128ef 596 */
3dfd0484
YD		 597int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
598 unsigned int age_ms, int level, const u8 *ies,
599 size_t ies_len, int scan_res)
b22128ef
JM		 600{
601 struct p2p_device *dev;
602 struct p2p_message msg;
603 const u8 *p2p_dev_addr;
6f2c0607 604 int i;
3dfd0484 605 struct os_time time_now, time_tmp_age, entry_ts;
b22128ef
JM		 606
607 os_memset(&msg, 0, sizeof(msg));
608 if (p2p_parse_ies(ies, ies_len, &msg)) {
609 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
610 "P2P: Failed to parse P2P IE for a device entry");
611 p2p_parse_free(&msg);
612 return -1;
613 }
614
615 if (msg.p2p_device_addr)
616 p2p_dev_addr = msg.p2p_device_addr;
617 else if (msg.device_id)
618 p2p_dev_addr = msg.device_id;
619 else {
620 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
621 "P2P: Ignore scan data without P2P Device Info or "
622 "P2P Device Id");
623 p2p_parse_free(&msg);
624 return -1;
625 }
626
80c9582a
JM		 627 if (!is_zero_ether_addr(p2p->peer_filter) &&
628 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
629 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
630 "filter for " MACSTR " due to peer filter",
631 MAC2STR(p2p_dev_addr));
632 return 0;
633 }
634
b22128ef
JM		 635 dev = p2p_create_device(p2p, p2p_dev_addr);
636 if (dev == NULL) {
637 p2p_parse_free(&msg);
638 return -1;
639 }
3dfd0484
YD		 640
641 os_get_time(&time_now);
642 time_tmp_age.sec = age_ms / 1000;
643 time_tmp_age.usec = (age_ms % 1000) * 1000;
644 os_time_sub(&time_now, &time_tmp_age, &entry_ts);
645
646 /*
647 * Update the device entry only if the new peer
648 * entry is newer than the one previously stored.
649 */
650 if (dev->last_seen.usec > 0 &&
651 os_time_before(&entry_ts, &dev->last_seen))
652 return -1;
653
654 os_memcpy(&dev->last_seen, &entry_ts, sizeof(struct os_time));
655
b22128ef
JM		 656 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
657
658 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
659 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
660 if (msg.ssid &&
661 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
662 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
663 != 0)) {
664 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
665 dev->oper_ssid_len = msg.ssid[1];
666 }
667
668 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
669 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
670 int ds_freq;
671 if (*msg.ds_params == 14)
672 ds_freq = 2484;
673 else
674 ds_freq = 2407 + *msg.ds_params * 5;
675 if (freq != ds_freq) {
676 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
677 "P2P: Update Listen frequency based on DS "
678 "Parameter Set IE: %d -> %d MHz",
679 freq, ds_freq);
680 freq = ds_freq;
681 }
682 }
683
c98b83f2 684 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
b22128ef
JM		 685 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
686 "P2P: Update Listen frequency based on scan "
687 "results (" MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 688 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
689 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 690 }
c98b83f2
JM		 691 if (scan_res) {
692 dev->listen_freq = freq;
693 if (msg.group_info)
694 dev->oper_freq = freq;
695 }
6402fc43 696 dev->info.level = level;
b22128ef 697
b67d0d9e 698 p2p_copy_wps_info(dev, 0, &msg);
e57ae6e1 699
10c5d2a5 700 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 701 wpabuf_free(dev->info.wps_vendor_ext[i]);
702 dev->info.wps_vendor_ext[i] = NULL;
703 }
704
10c5d2a5 705 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 706 if (msg.wps_vendor_ext[i] == NULL)
707 break;
708 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
709 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
710 if (dev->info.wps_vendor_ext[i] == NULL)
711 break;
712 }
713
9675ce35
JM		 714 if (msg.wfd_subelems) {
715 wpabuf_free(dev->info.wfd_subelems);
716 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
717 }
718
c98b83f2
JM		 719 if (scan_res) {
720 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
721 msg.group_info, msg.group_info_len);
722 }
b22128ef
JM		 723
724 p2p_parse_free(&msg);
725
726 if (p2p_pending_sd_req(p2p, dev))
727 dev->flags |= P2P_DEV_SD_SCHEDULE;
728
729 if (dev->flags & P2P_DEV_REPORTED)
730 return 0;
731
732 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
733 "P2P: Peer found with Listen frequency %d MHz", freq);
734 if (dev->flags & P2P_DEV_USER_REJECTED) {
735 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
736 "P2P: Do not report rejected device");
737 return 0;
738 }
8fd7dc1b
JB		 739
740 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
741 !(dev->flags & P2P_DEV_REPORTED_ONCE));
742 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 743
744 return 0;
745}
746
747
748static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
749{
6f2c0607
JMB		 750 int i;
751
5cfda25e
JJ		 752 if (p2p->go_neg_peer == dev) {
753 /*
754 * If GO Negotiation is in progress, report that it has failed.
755 */
756 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 757 p2p->go_neg_peer = NULL;
5cfda25e 758 }
b22128ef
JM		 759 if (p2p->invite_peer == dev)
760 p2p->invite_peer = NULL;
761 if (p2p->sd_peer == dev)
762 p2p->sd_peer = NULL;
763 if (p2p->pending_client_disc_go == dev)
764 p2p->pending_client_disc_go = NULL;
765
f5fc6032
AC		 766 /* dev_lost() device, but only if it was previously dev_found() */
767 if (dev->flags & P2P_DEV_REPORTED_ONCE)
768 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
769 dev->info.p2p_device_addr);
56eeb8f2 770
10c5d2a5 771 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 772 wpabuf_free(dev->info.wps_vendor_ext[i]);
773 dev->info.wps_vendor_ext[i] = NULL;
774 }
775
9675ce35
JM		 776 wpabuf_free(dev->info.wfd_subelems);
777
b22128ef
JM		 778 os_free(dev);
779}
780
781
782static int p2p_get_next_prog_freq(struct p2p_data *p2p)
783{
784 struct p2p_channels *c;
785 struct p2p_reg_class *cla;
786 size_t cl, ch;
787 int found = 0;
788 u8 reg_class;
789 u8 channel;
790 int freq;
791
792 c = &p2p->cfg->channels;
793 for (cl = 0; cl < c->reg_classes; cl++) {
794 cla = &c->reg_class[cl];
795 if (cla->reg_class != p2p->last_prog_scan_class)
796 continue;
797 for (ch = 0; ch < cla->channels; ch++) {
798 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
799 found = 1;
800 break;
801 }
802 }
803 if (found)
804 break;
805 }
806
807 if (!found) {
808 /* Start from beginning */
809 reg_class = c->reg_class[0].reg_class;
810 channel = c->reg_class[0].channel[0];
811 } else {
812 /* Pick the next channel */
813 ch++;
814 if (ch == cla->channels) {
815 cl++;
816 if (cl == c->reg_classes)
817 cl = 0;
818 ch = 0;
819 }
820 reg_class = c->reg_class[cl].reg_class;
821 channel = c->reg_class[cl].channel[ch];
822 }
823
824 freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
825 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
826 "channel: reg_class %u channel %u -> %d MHz",
827 reg_class, channel, freq);
828 p2p->last_prog_scan_class = reg_class;
829 p2p->last_prog_scan_chan = channel;
830
831 if (freq == 2412 || freq == 2437 || freq == 2462)
832 return 0; /* No need to add social channels */
833 return freq;
834}
835
836
837static void p2p_search(struct p2p_data *p2p)
838{
839 int freq = 0;
840 enum p2p_scan_type type;
360182ed 841 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 842 int res;
b22128ef
JM		 843
844 if (p2p->drv_in_listen) {
845 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
846 "in Listen state - wait for it to end before "
847 "continuing");
848 return;
849 }
850 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
851
e6ecfc4f
JB		 852 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
853 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef
JM		 854 type = P2P_SCAN_SOCIAL_PLUS_ONE;
855 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
856 "(+ freq %u)", freq);
857 } else {
858 type = P2P_SCAN_SOCIAL;
859 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
860 }
861
99fcd404
JM		 862 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
863 p2p->num_req_dev_types, p2p->req_dev_types,
864 p2p->find_dev_id, pw_id);
865 if (res < 0) {
b22128ef
JM		 866 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
867 "P2P: Scan request failed");
868 p2p_continue_find(p2p);
99fcd404
JM		 869 } else if (res == 1) {
870 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
871 "p2p_scan at this point - will try again after "
872 "previous scan completes");
873 p2p_set_state(p2p, P2P_CONTINUE_SEARCH_WHEN_READY);
40c03fd4
JM		 874 } else {
875 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
876 p2p->p2p_scan_running = 1;
877 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
878 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
879 p2p, NULL);
b22128ef
JM		 880 }
881}
882
883
884static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
885{
886 struct p2p_data *p2p = eloop_ctx;
887 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
888 p2p_stop_find(p2p);
889}
890
891
892static int p2p_run_after_scan(struct p2p_data *p2p)
893{
894 struct p2p_device *dev;
895 enum p2p_after_scan op;
896
3f9285ff 897 if (p2p->after_scan_tx) {
3f9285ff
JM		 898 /* TODO: schedule p2p_run_after_scan to be called from TX
899 * status callback(?) */
900 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
901 "Action frame at p2p_scan completion");
46eeedac
JM		 902 p2p->cfg->send_action(p2p->cfg->cb_ctx,
903 p2p->after_scan_tx->freq,
904 p2p->after_scan_tx->dst,
905 p2p->after_scan_tx->src,
906 p2p->after_scan_tx->bssid,
907 (u8 *) (p2p->after_scan_tx + 1),
908 p2p->after_scan_tx->len,
909 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 910 os_free(p2p->after_scan_tx);
911 p2p->after_scan_tx = NULL;
912 return 1;
913 }
914
b22128ef
JM		 915 op = p2p->start_after_scan;
916 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
917 switch (op) {
918 case P2P_AFTER_SCAN_NOTHING:
919 break;
920 case P2P_AFTER_SCAN_LISTEN:
921 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
922 "requested Listen state");
923 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
924 p2p->pending_listen_usec / 1000);
925 return 1;
926 case P2P_AFTER_SCAN_CONNECT:
927 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
928 "requested connect with " MACSTR,
929 MAC2STR(p2p->after_scan_peer));
930 dev = p2p_get_device(p2p, p2p->after_scan_peer);
931 if (dev == NULL) {
932 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
933 "known anymore");
934 break;
935 }
936 p2p_connect_send(p2p, dev);
937 return 1;
938 }
939
940 return 0;
941}
942
943
b22128ef
JM		 944static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
945{
946 struct p2p_data *p2p = eloop_ctx;
947 int running;
948 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
949 "(running=%d)", p2p->p2p_scan_running);
950 running = p2p->p2p_scan_running;
951 /* Make sure we recover from missed scan results callback */
952 p2p->p2p_scan_running = 0;
953
954 if (running)
955 p2p_run_after_scan(p2p);
956}
957
958
046ef4aa
JMB		 959static void p2p_free_req_dev_types(struct p2p_data *p2p)
960{
961 p2p->num_req_dev_types = 0;
962 os_free(p2p->req_dev_types);
963 p2p->req_dev_types = NULL;
964}
965
966
b22128ef 967int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 968 enum p2p_discovery_type type,
6d92fa6e 969 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 970 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 971{
972 int res;
973
974 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
975 type);
976 if (p2p->p2p_scan_running) {
977 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
978 "already running");
979 }
046ef4aa
JMB		 980
981 p2p_free_req_dev_types(p2p);
982 if (req_dev_types && num_req_dev_types) {
983 p2p->req_dev_types = os_malloc(num_req_dev_types *
984 WPS_DEV_TYPE_LEN);
985 if (p2p->req_dev_types == NULL)
986 return -1;
987 os_memcpy(p2p->req_dev_types, req_dev_types,
988 num_req_dev_types * WPS_DEV_TYPE_LEN);
989 p2p->num_req_dev_types = num_req_dev_types;
990 }
991
6d92fa6e
JM		 992 if (dev_id) {
993 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
994 p2p->find_dev_id = p2p->find_dev_id_buf;
995 } else
996 p2p->find_dev_id = NULL;
997
b22128ef
JM		 998 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
999 p2p_clear_timeout(p2p);
1000 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1001 p2p->find_type = type;
1002 p2p_device_clear_reported(p2p);
1003 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1004 p2p->search_delay = search_delay;
1005 p2p->in_search_delay = 0;
b22128ef 1006 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1007 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1008 if (timeout)
1009 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1010 p2p, NULL);
1011 switch (type) {
1012 case P2P_FIND_START_WITH_FULL:
1013 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1014 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1015 p2p->num_req_dev_types,
360182ed
JM		 1016 p2p->req_dev_types, dev_id,
1017 DEV_PW_DEFAULT);
b22128ef
JM		 1018 break;
1019 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1020 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1021 p2p->num_req_dev_types,
360182ed
JM		 1022 p2p->req_dev_types, dev_id,
1023 DEV_PW_DEFAULT);
b22128ef
JM		 1024 break;
1025 default:
1026 return -1;
1027 }
1028
1029 if (res == 0) {
1030 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
1031 p2p->p2p_scan_running = 1;
1032 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1033 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1034 p2p, NULL);
39185dfa
JM		 1035 } else if (res == 1) {
1036 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
1037 "p2p_scan at this point - will try again after "
1038 "previous scan completes");
1039 res = 0;
1040 p2p_set_state(p2p, P2P_SEARCH_WHEN_READY);
1041 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1042 } else {
1043 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
1044 "p2p_scan");
0c96fd6d
JM		 1045 p2p_set_state(p2p, P2P_IDLE);
1046 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1047 }
1048
1049 return res;
1050}
1051
1052
39185dfa
JM		 1053int p2p_other_scan_completed(struct p2p_data *p2p)
1054{
99fcd404
JM		 1055 if (p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY) {
1056 p2p_set_state(p2p, P2P_SEARCH);
1057 p2p_search(p2p);
1058 return 1;
1059 }
39185dfa
JM		 1060 if (p2p->state != P2P_SEARCH_WHEN_READY)
1061 return 0;
1062 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting pending P2P find "
1063 "now that previous scan was completed");
1064 if (p2p_find(p2p, p2p->last_p2p_find_timeout, p2p->find_type,
6d92fa6e 1065 p2p->num_req_dev_types, p2p->req_dev_types,
37448ede 1066 p2p->find_dev_id, p2p->search_delay) < 0)
39185dfa
JM		 1067 return 0;
1068 return 1;
1069}
1070
1071
0b8889d8 1072void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef
JM		 1073{
1074 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
1075 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1076 p2p_clear_timeout(p2p);
8aebb0e4
JJ		 1077 if (p2p->state == P2P_SEARCH)
1078 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, P2P_EVENT_FIND_STOPPED);
b22128ef 1079 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1080 p2p_free_req_dev_types(p2p);
b22128ef
JM		 1081 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1082 p2p->go_neg_peer = NULL;
1083 p2p->sd_peer = NULL;
1084 p2p->invite_peer = NULL;
1a9c618d
JM		 1085 p2p_stop_listen_for_freq(p2p, freq);
1086}
1087
1088
1089void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1090{
0b8889d8
JM		 1091 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
1092 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip stop_listen "
1093 "since we are on correct channel for response");
1094 return;
1095 }
1a9c618d
JM		 1096 if (p2p->in_listen) {
1097 p2p->in_listen = 0;
1098 p2p_clear_timeout(p2p);
1099 }
54b8f994
JM		 1100 if (p2p->drv_in_listen) {
1101 /*
1102 * The driver may not deliver callback to p2p_listen_end()
1103 * when the operation gets canceled, so clear the internal
1104 * variable that is tracking driver state.
1105 */
1106 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear "
1107 "drv_in_listen (%d)", p2p->drv_in_listen);
1108 p2p->drv_in_listen = 0;
1109 }
b22128ef
JM		 1110 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1111}
1112
1113
0b8889d8
JM		 1114void p2p_stop_find(struct p2p_data *p2p)
1115{
1116 p2p_stop_find_for_freq(p2p, 0);
1117}
1118
1119
92ac756c
JM		 1120static int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
1121 unsigned int force_freq, unsigned int pref_freq)
b22128ef 1122{
04a3e69d 1123 if (force_freq || pref_freq) {
1e19f734 1124 u8 op_reg_class, op_channel;
04a3e69d
JM		 1125 unsigned int freq = force_freq ? force_freq : pref_freq;
1126 if (p2p_freq_to_channel(p2p->cfg->country, freq,
1e19f734 1127 &op_reg_class, &op_channel) < 0) {
b22128ef
JM		 1128 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1129 "P2P: Unsupported frequency %u MHz",
04a3e69d 1130 freq);
b22128ef
JM		 1131 return -1;
1132 }
1e19f734
JM		 1133 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
1134 op_channel)) {
1135 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1136 "P2P: Frequency %u MHz (oper_class %u "
1137 "channel %u) not allowed for P2P",
04a3e69d 1138 freq, op_reg_class, op_channel);
1e19f734
JM		 1139 return -1;
1140 }
1141 p2p->op_reg_class = op_reg_class;
1142 p2p->op_channel = op_channel;
04a3e69d
JM		 1143 if (force_freq) {
1144 p2p->channels.reg_classes = 1;
1145 p2p->channels.reg_class[0].channels = 1;
1146 p2p->channels.reg_class[0].reg_class =
1147 p2p->op_reg_class;
1148 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1149 } else {
1150 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1151 sizeof(struct p2p_channels));
1152 }
b22128ef 1153 } else {
7cfc4ac3
AGS		 1154 u8 op_reg_class, op_channel;
1155
1156 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1157 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
1158 p2p_freq_to_channel(p2p->cfg->country,
1159 p2p->best_freq_overall,
1160 &op_reg_class, &op_channel) == 0) {
1161 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1162 "P2P: Select best overall channel as "
1163 "operating channel preference");
1164 p2p->op_reg_class = op_reg_class;
1165 p2p->op_channel = op_channel;
1166 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1167 p2p_supported_freq(p2p, p2p->best_freq_5) &&
1168 p2p_freq_to_channel(p2p->cfg->country,
1169 p2p->best_freq_5,
1170 &op_reg_class, &op_channel) ==
1171 0) {
1172 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1173 "P2P: Select best 5 GHz channel as "
1174 "operating channel preference");
1175 p2p->op_reg_class = op_reg_class;
1176 p2p->op_channel = op_channel;
1177 } else if (!p2p->cfg->cfg_op_channel &&
1178 p2p->best_freq_24 > 0 &&
1179 p2p_supported_freq(p2p, p2p->best_freq_24) &&
1180 p2p_freq_to_channel(p2p->cfg->country,
1181 p2p->best_freq_24,
1182 &op_reg_class, &op_channel) ==
1183 0) {
1184 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1185 "P2P: Select best 2.4 GHz channel as "
1186 "operating channel preference");
1187 p2p->op_reg_class = op_reg_class;
1188 p2p->op_channel = op_channel;
1189 } else {
1190 p2p->op_reg_class = p2p->cfg->op_reg_class;
1191 p2p->op_channel = p2p->cfg->op_channel;
1192 }
1193
b22128ef
JM		 1194 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1195 sizeof(struct p2p_channels));
1196 }
1197 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1198 "P2P: Own preference for operation channel: "
7cfc4ac3 1199 "Operating Class %u Channel %u%s",
b22128ef
JM		 1200 p2p->op_reg_class, p2p->op_channel,
1201 force_freq ? " (forced)" : "");
1202
92ac756c
JM		 1203 if (force_freq)
1204 dev->flags |= P2P_DEV_FORCE_FREQ;
1205 else
1206 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1207
7861cb08
JM		 1208 return 0;
1209}
1210
1211
acc247b2
JM		 1212static void p2p_set_dev_persistent(struct p2p_device *dev,
1213 int persistent_group)
1214{
1215 switch (persistent_group) {
1216 case 0:
1217 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1218 P2P_DEV_PREFER_PERSISTENT_RECONN);
1219 break;
1220 case 1:
1221 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1222 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1223 break;
1224 case 2:
1225 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1226 P2P_DEV_PREFER_PERSISTENT_RECONN;
1227 break;
1228 }
1229}
1230
1231
7861cb08
JM		 1232int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1233 enum p2p_wps_method wps_method,
1234 int go_intent, const u8 *own_interface_addr,
23c84252 1235 unsigned int force_freq, int persistent_group,
3bc462cb 1236 const u8 *force_ssid, size_t force_ssid_len,
04a3e69d 1237 int pd_before_go_neg, unsigned int pref_freq)
7861cb08
JM		 1238{
1239 struct p2p_device *dev;
1240
1241 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1242 "P2P: Request to start group negotiation - peer=" MACSTR
1243 " GO Intent=%d Intended Interface Address=" MACSTR
3bc462cb 1244 " wps_method=%d persistent_group=%d pd_before_go_neg=%d",
7861cb08 1245 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
3bc462cb 1246 wps_method, persistent_group, pd_before_go_neg);
7861cb08 1247
b22128ef
JM		 1248 dev = p2p_get_device(p2p, peer_addr);
1249 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
1250 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1251 "P2P: Cannot connect to unknown P2P Device " MACSTR,
1252 MAC2STR(peer_addr));
1253 return -1;
1254 }
1255
92ac756c
JM		 1256 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1257 return -1;
1258
b22128ef 1259 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1260 if (!(dev->info.dev_capab &
1261 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
b22128ef
JM		 1262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1263 "P2P: Cannot connect to P2P Device " MACSTR
1264 " that is in a group and is not discoverable",
1265 MAC2STR(peer_addr));
1266 return -1;
1267 }
1268 if (dev->oper_freq <= 0) {
1269 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1270 "P2P: Cannot connect to P2P Device " MACSTR
1271 " with incomplete information",
1272 MAC2STR(peer_addr));
1273 return -1;
1274 }
1275
1276 /*
1277 * First, try to connect directly. If the peer does not
1278 * acknowledge frames, assume it is sleeping and use device
1279 * discoverability via the GO at that point.
1280 */
1281 }
1282
23c84252
JM		 1283 p2p->ssid_set = 0;
1284 if (force_ssid) {
1285 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1286 force_ssid, force_ssid_len);
1287 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1288 p2p->ssid_len = force_ssid_len;
1289 p2p->ssid_set = 1;
1290 }
1291
b22128ef
JM		 1292 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1293 dev->flags &= ~P2P_DEV_USER_REJECTED;
1294 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1295 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1296 if (pd_before_go_neg)
1297 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
1298 else
1299 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
9dac8c3e 1300 dev->connect_reqs = 0;
b22128ef
JM		 1301 dev->go_neg_req_sent = 0;
1302 dev->go_state = UNKNOWN_GO;
acc247b2 1303 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1304 p2p->go_intent = go_intent;
1305 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1306
1307 if (p2p->state != P2P_IDLE)
1308 p2p_stop_find(p2p);
1309
f44ae207
JM		 1310 if (p2p->after_scan_tx) {
1311 /*
1312 * We need to drop the pending frame to avoid issues with the
1313 * new GO Negotiation, e.g., when the pending frame was from a
1314 * previous attempt at starting a GO Negotiation.
1315 */
1316 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
1317 "previous pending Action frame TX that was waiting "
1318 "for p2p_scan completion");
1319 os_free(p2p->after_scan_tx);
1320 p2p->after_scan_tx = NULL;
1321 }
1322
b22128ef
JM		 1323 dev->wps_method = wps_method;
1324 dev->status = P2P_SC_SUCCESS;
d5b20a73 1325
b22128ef
JM		 1326 if (p2p->p2p_scan_running) {
1327 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1328 "P2P: p2p_scan running - delay connect send");
1329 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1330 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1331 return 0;
1332 }
1333 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1334
1335 return p2p_connect_send(p2p, dev);
1336}
1337
1338
1339int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1340 enum p2p_wps_method wps_method,
1341 int go_intent, const u8 *own_interface_addr,
23c84252 1342 unsigned int force_freq, int persistent_group,
04a3e69d
JM		 1343 const u8 *force_ssid, size_t force_ssid_len,
1344 unsigned int pref_freq)
b22128ef
JM		 1345{
1346 struct p2p_device *dev;
1347
1348 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1349 "P2P: Request to authorize group negotiation - peer=" MACSTR
1350 " GO Intent=%d Intended Interface Address=" MACSTR
1351 " wps_method=%d persistent_group=%d",
1352 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1353 wps_method, persistent_group);
1354
b22128ef
JM		 1355 dev = p2p_get_device(p2p, peer_addr);
1356 if (dev == NULL) {
1357 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1358 "P2P: Cannot authorize unknown P2P Device " MACSTR,
1359 MAC2STR(peer_addr));
1360 return -1;
1361 }
1362
92ac756c
JM		 1363 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1364 return -1;
1365
23c84252
JM		 1366 p2p->ssid_set = 0;
1367 if (force_ssid) {
1368 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1369 force_ssid, force_ssid_len);
1370 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1371 p2p->ssid_len = force_ssid_len;
1372 p2p->ssid_set = 1;
1373 }
1374
b22128ef
JM		 1375 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1376 dev->flags &= ~P2P_DEV_USER_REJECTED;
1377 dev->go_neg_req_sent = 0;
1378 dev->go_state = UNKNOWN_GO;
acc247b2 1379 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1380 p2p->go_intent = go_intent;
1381 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1382
1383 dev->wps_method = wps_method;
1384 dev->status = P2P_SC_SUCCESS;
1385
1386 return 0;
1387}
1388
1389
1390void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1391 struct p2p_device *dev, struct p2p_message *msg)
1392{
1393 os_get_time(&dev->last_seen);
1394
b67d0d9e 1395 p2p_copy_wps_info(dev, 0, msg);
e57ae6e1 1396
b22128ef
JM		 1397 if (msg->listen_channel) {
1398 int freq;
1399 freq = p2p_channel_to_freq((char *) msg->listen_channel,
1400 msg->listen_channel[3],
1401 msg->listen_channel[4]);
1402 if (freq < 0) {
1403 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1404 "P2P: Unknown peer Listen channel: "
1405 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1406 msg->listen_channel[0],
1407 msg->listen_channel[1],
1408 msg->listen_channel[2],
1409 msg->listen_channel[3],
1410 msg->listen_channel[4]);
1411 } else {
1412 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1413 "peer " MACSTR " Listen channel: %u -> %u MHz",
c5db8e51 1414 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1415 dev->listen_freq, freq);
1416 dev->listen_freq = freq;
1417 }
1418 }
b22128ef 1419
9675ce35
JM		 1420 if (msg->wfd_subelems) {
1421 wpabuf_free(dev->info.wfd_subelems);
1422 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1423 }
1424
b22128ef
JM		 1425 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1426 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1427 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1428 "P2P: Completed device entry based on data from "
1429 "GO Negotiation Request");
1430 } else {
1431 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1432 "P2P: Created device entry based on GO Neg Req: "
1433 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1434 "listen_freq=%d",
c5db8e51
KRK		 1435 MAC2STR(dev->info.p2p_device_addr),
1436 dev->info.dev_capab, dev->info.group_capab,
1437 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1438 }
1439
1440 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1441
1442 if (dev->flags & P2P_DEV_USER_REJECTED) {
1443 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1444 "P2P: Do not report rejected device");
1445 return;
1446 }
1447
8fd7dc1b
JB		 1448 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1449 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1450 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1451}
1452
1453
1454void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1455{
1456 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1457 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1458 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1459 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1460 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1461}
1462
1463
1464int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1465{
1466 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1467 p2p_random(params->passphrase, 8);
1468 return 0;
1469}
1470
1471
1472void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1473{
1474 struct p2p_go_neg_results res;
1475 int go = peer->go_state == LOCAL_GO;
1476 struct p2p_channels intersection;
1477 int freqs;
1478 size_t i, j;
1479
1480 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1481 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
c5db8e51 1482 "GO)", MAC2STR(peer->info.p2p_device_addr),
b22128ef
JM		 1483 go ? "local end" : "peer");
1484
1485 os_memset(&res, 0, sizeof(res));
1486 res.role_go = go;
c5db8e51 1487 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1488 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1489 res.wps_method = peer->wps_method;
acc247b2
JM		 1490 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1491 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1492 res.persistent_group = 2;
1493 else
1494 res.persistent_group = 1;
1495 }
b22128ef
JM		 1496
1497 if (go) {
1498 /* Setup AP mode for WPS provisioning */
1499 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1500 p2p->op_reg_class,
1501 p2p->op_channel);
1502 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1503 res.ssid_len = p2p->ssid_len;
1504 p2p_random(res.passphrase, 8);
e9a7ae41 1505 } else {
b22128ef 1506 res.freq = peer->oper_freq;
e9a7ae41
JM		 1507 if (p2p->ssid_len) {
1508 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1509 res.ssid_len = p2p->ssid_len;
1510 }
1511 }
b22128ef
JM		 1512
1513 p2p_channels_intersect(&p2p->channels, &peer->channels,
1514 &intersection);
1515 freqs = 0;
1516 for (i = 0; i < intersection.reg_classes; i++) {
1517 struct p2p_reg_class *c = &intersection.reg_class[i];
1518 if (freqs + 1 == P2P_MAX_CHANNELS)
1519 break;
1520 for (j = 0; j < c->channels; j++) {
1521 int freq;
1522 if (freqs + 1 == P2P_MAX_CHANNELS)
1523 break;
1524 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1525 c->channel[j]);
1526 if (freq < 0)
1527 continue;
1528 res.freq_list[freqs++] = freq;
1529 }
1530 }
1531
ae3e3421
JM		 1532 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1533
b22128ef 1534 p2p_clear_timeout(p2p);
4458d915 1535 p2p->ssid_set = 0;
b22128ef
JM		 1536 peer->go_neg_req_sent = 0;
1537 peer->wps_method = WPS_NOT_READY;
1538
1539 p2p_set_state(p2p, P2P_PROVISIONING);
1540 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1541}
1542
1543
1544static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1545 const u8 *data, size_t len, int rx_freq)
1546{
1547 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1548 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1549 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1550
1551 if (len < 1)
1552 return;
1553
1554 switch (data[0]) {
1555 case P2P_GO_NEG_REQ:
1556 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1557 break;
1558 case P2P_GO_NEG_RESP:
1559 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1560 break;
1561 case P2P_GO_NEG_CONF:
1562 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1563 break;
1564 case P2P_INVITATION_REQ:
1565 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1566 rx_freq);
1567 break;
1568 case P2P_INVITATION_RESP:
1569 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1570 break;
1571 case P2P_PROV_DISC_REQ:
1572 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1573 break;
1574 case P2P_PROV_DISC_RESP:
1575 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1576 break;
1577 case P2P_DEV_DISC_REQ:
1578 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1579 break;
1580 case P2P_DEV_DISC_RESP:
1581 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1582 break;
1583 default:
1584 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1585 "P2P: Unsupported P2P Public Action frame type %d",
1586 data[0]);
1587 break;
1588 }
1589}
1590
1591
19df9b07
JM		 1592static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1593 const u8 *sa, const u8 *bssid, const u8 *data,
1594 size_t len, int freq)
b22128ef
JM		 1595{
1596 if (len < 1)
1597 return;
1598
1599 switch (data[0]) {
1600 case WLAN_PA_VENDOR_SPECIFIC:
1601 data++;
1602 len--;
1603 if (len < 3)
1604 return;
1605 if (WPA_GET_BE24(data) != OUI_WFA)
1606 return;
1607
1608 data += 3;
1609 len -= 3;
1610 if (len < 1)
1611 return;
1612
1613 if (*data != P2P_OUI_TYPE)
1614 return;
1615
1616 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1617 break;
1618 case WLAN_PA_GAS_INITIAL_REQ:
1619 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1620 break;
1621 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1622 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1623 break;
1624 case WLAN_PA_GAS_COMEBACK_REQ:
1625 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1626 break;
1627 case WLAN_PA_GAS_COMEBACK_RESP:
1628 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1629 break;
1630 }
1631}
1632
1633
1634void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1635 const u8 *bssid, u8 category,
1636 const u8 *data, size_t len, int freq)
1637{
1638 if (category == WLAN_ACTION_PUBLIC) {
1639 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1640 return;
1641 }
1642
1643 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1644 return;
1645
1646 if (len < 4)
1647 return;
1648
1649 if (WPA_GET_BE24(data) != OUI_WFA)
1650 return;
1651 data += 3;
1652 len -= 3;
1653
1654 if (*data != P2P_OUI_TYPE)
1655 return;
1656 data++;
1657 len--;
1658
1659 /* P2P action frame */
1660 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1661 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1662 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1663
1664 if (len < 1)
1665 return;
1666 switch (data[0]) {
1667 case P2P_NOA:
1668 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1669 "P2P: Received P2P Action - Notice of Absence");
1670 /* TODO */
1671 break;
1672 case P2P_PRESENCE_REQ:
1673 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1674 break;
1675 case P2P_PRESENCE_RESP:
1676 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1677 break;
1678 case P2P_GO_DISC_REQ:
1679 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1680 break;
1681 default:
1682 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1683 "P2P: Received P2P Action - unknown type %u", data[0]);
1684 break;
1685 }
1686}
1687
1688
1689static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1690{
1691 struct p2p_data *p2p = eloop_ctx;
1692 if (p2p->go_neg_peer == NULL)
1693 return;
1694 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1695 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1696 p2p_connect_send(p2p, p2p->go_neg_peer);
1697}
1698
1699
1700static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1701{
1702 struct p2p_data *p2p = eloop_ctx;
1703 if (p2p->invite_peer == NULL)
1704 return;
1705 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1706 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1707}
1708
1709
1710static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1711 const u8 *ie, size_t ie_len)
1712{
1713 struct p2p_message msg;
1714 struct p2p_device *dev;
1715
1716 os_memset(&msg, 0, sizeof(msg));
1717 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1718 {
1719 p2p_parse_free(&msg);
1720 return; /* not a P2P probe */
1721 }
1722
1723 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1724 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1725 != 0) {
1726 /* The Probe Request is not part of P2P Device Discovery. It is
1727 * not known whether the source address of the frame is the P2P
1728 * Device Address or P2P Interface Address. Do not add a new
1729 * peer entry based on this frames.
1730 */
1731 p2p_parse_free(&msg);
1732 return;
1733 }
1734
1735 dev = p2p_get_device(p2p, addr);
1736 if (dev) {
1737 if (dev->country[0] == 0 && msg.listen_channel)
1738 os_memcpy(dev->country, msg.listen_channel, 3);
ed908a55 1739 os_get_time(&dev->last_seen);
b22128ef
JM		 1740 p2p_parse_free(&msg);
1741 return; /* already known */
1742 }
1743
1744 dev = p2p_create_device(p2p, addr);
1745 if (dev == NULL) {
1746 p2p_parse_free(&msg);
1747 return;
1748 }
1749
1750 os_get_time(&dev->last_seen);
1751 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1752
b22128ef
JM		 1753 if (msg.listen_channel) {
1754 os_memcpy(dev->country, msg.listen_channel, 3);
1755 dev->listen_freq = p2p_channel_to_freq(dev->country,
1756 msg.listen_channel[3],
1757 msg.listen_channel[4]);
1758 }
1759
b67d0d9e 1760 p2p_copy_wps_info(dev, 1, &msg);
e57ae6e1 1761
9675ce35
JM		 1762 if (msg.wfd_subelems) {
1763 wpabuf_free(dev->info.wfd_subelems);
1764 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1765 }
1766
b22128ef
JM		 1767 p2p_parse_free(&msg);
1768
1769 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1770 "P2P: Created device entry based on Probe Req: " MACSTR
1771 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1772 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1773 dev->info.group_capab, dev->info.device_name,
1774 dev->listen_freq);
b22128ef
JM		 1775}
1776
1777
1778struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1779 const u8 *addr,
1780 struct p2p_message *msg)
1781{
1782 struct p2p_device *dev;
1783
1784 dev = p2p_get_device(p2p, addr);
1785 if (dev) {
1786 os_get_time(&dev->last_seen);
1787 return dev; /* already known */
1788 }
1789
1790 dev = p2p_create_device(p2p, addr);
1791 if (dev == NULL)
1792 return NULL;
1793
1794 p2p_add_dev_info(p2p, addr, dev, msg);
1795
1796 return dev;
1797}
1798
1799
1800static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1801{
1802 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1803 return 1;
1804 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1805 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1806 WPA_GET_BE16(&req_dev_type[6]) == 0)
1807 return 1; /* Category match with wildcard OUI/sub-category */
1808 return 0;
1809}
1810
1811
1812int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1813 size_t num_req_dev_type)
1814{
1815 size_t i;
1816 for (i = 0; i < num_req_dev_type; i++) {
1817 if (dev_type_match(dev_type, req_dev_type[i]))
1818 return 1;
1819 }
1820 return 0;
1821}
1822
1823
1824/**
1825 * p2p_match_dev_type - Match local device type with requested type
1826 * @p2p: P2P module context from p2p_init()
1827 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1828 * Returns: 1 on match, 0 on mismatch
1829 *
1830 * This function can be used to match the Requested Device Type attribute in
1831 * WPS IE with the local device types for deciding whether to reply to a Probe
1832 * Request frame.
1833 */
1834int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1835{
1836 struct wps_parse_attr attr;
1837 size_t i;
1838
1839 if (wps_parse_msg(wps, &attr))
1840 return 1; /* assume no Requested Device Type attributes */
1841
1842 if (attr.num_req_dev_type == 0)
1843 return 1; /* no Requested Device Type attributes -> match */
1844
1845 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1846 attr.num_req_dev_type))
1847 return 1; /* Own Primary Device Type matches */
1848
1849 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1850 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1851 attr.req_dev_type,
1852 attr.num_req_dev_type))
1853 return 1; /* Own Secondary Device Type matches */
1854
1855 /* No matching device type found */
1856 return 0;
1857}
1858
1859
1860struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1861{
1862 struct wpabuf *buf;
1863 u8 *len;
360182ed 1864 int pw_id = -1;
9675ce35 1865 size_t extra = 0;
b22128ef 1866
9675ce35
JM		 1867#ifdef CONFIG_WIFI_DISPLAY
1868 if (p2p->wfd_ie_probe_resp)
1869 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1870#endif /* CONFIG_WIFI_DISPLAY */
1871
1872 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 1873 if (buf == NULL)
1874 return NULL;
1875
360182ed
JM		 1876 if (p2p->go_neg_peer) {
1877 /* Advertise immediate availability of WPS credential */
1878 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1879 }
1880
1881 p2p_build_wps_ie(p2p, buf, pw_id, 1);
b22128ef 1882
9675ce35
JM		 1883#ifdef CONFIG_WIFI_DISPLAY
1884 if (p2p->wfd_ie_probe_resp)
1885 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1886#endif /* CONFIG_WIFI_DISPLAY */
1887
b22128ef
JM		 1888 /* P2P IE */
1889 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 1890 p2p_buf_add_capability(buf, p2p->dev_capab &
1891 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 1892 if (p2p->ext_listen_interval)
1893 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1894 p2p->ext_listen_interval);
1895 p2p_buf_add_device_info(buf, p2p, NULL);
1896 p2p_buf_update_ie_hdr(buf, len);
1897
1898 return buf;
1899}
1900
1901
e1d52629
JM		 1902static int is_11b(u8 rate)
1903{
1904 return rate == 0x02 || rate == 0x04 || rate == 0x0b || rate == 0x16;
1905}
1906
1907
1908static int supp_rates_11b_only(struct ieee802_11_elems *elems)
1909{
1910 int num_11b = 0, num_others = 0;
1911 int i;
1912
1913 if (elems->supp_rates == NULL && elems->ext_supp_rates == NULL)
1914 return 0;
1915
1916 for (i = 0; elems->supp_rates && i < elems->supp_rates_len; i++) {
1917 if (is_11b(elems->supp_rates[i]))
1918 num_11b++;
1919 else
1920 num_others++;
1921 }
1922
70dbe3b6
JM		 1923 for (i = 0; elems->ext_supp_rates && i < elems->ext_supp_rates_len;
1924 i++) {
1925 if (is_11b(elems->ext_supp_rates[i]))
1926 num_11b++;
1927 else
1928 num_others++;
1929 }
1930
e1d52629
JM		 1931 return num_11b > 0 && num_others == 0;
1932}
1933
1934
2d43d37f
JB		 1935static enum p2p_probe_req_status
1936p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1937 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1938{
1939 struct ieee802_11_elems elems;
1940 struct wpabuf *buf;
1941 struct ieee80211_mgmt *resp;
97c5b3c4 1942 struct p2p_message msg;
b22128ef
JM		 1943 struct wpabuf *ies;
1944
1945 if (!p2p->in_listen || !p2p->drv_in_listen) {
1946 /* not in Listen state - ignore Probe Request */
2d43d37f 1947 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 1948 }
1949
1950 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1951 ParseFailed) {
1952 /* Ignore invalid Probe Request frames */
2d43d37f 1953 return P2P_PREQ_MALFORMED;
b22128ef
JM		 1954 }
1955
1956 if (elems.p2p == NULL) {
1957 /* not a P2P probe - ignore it */
2d43d37f 1958 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 1959 }
1960
04a85e44
JM		 1961 if (dst && !is_broadcast_ether_addr(dst) &&
1962 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1963 /* Not sent to the broadcast address or our P2P Device Address
1964 */
2d43d37f 1965 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1966 }
1967
1968 if (bssid && !is_broadcast_ether_addr(bssid)) {
1969 /* Not sent to the Wildcard BSSID */
2d43d37f 1970 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1971 }
1972
b22128ef
JM		 1973 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1974 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1975 0) {
1976 /* not using P2P Wildcard SSID - ignore */
2d43d37f 1977 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 1978 }
1979
e1d52629
JM		 1980 if (supp_rates_11b_only(&elems)) {
1981 /* Indicates support for 11b rates only */
2d43d37f 1982 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 1983 }
1984
97c5b3c4
JM		 1985 os_memset(&msg, 0, sizeof(msg));
1986 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
1987 /* Could not parse P2P attributes */
2d43d37f 1988 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 1989 }
1990
1991 if (msg.device_id &&
1c7447d0 1992 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4
JM		 1993 /* Device ID did not match */
1994 p2p_parse_free(&msg);
2d43d37f 1995 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 1996 }
1997
b22128ef 1998 /* Check Requested Device Type match */
97c5b3c4
JM		 1999 if (msg.wps_attributes &&
2000 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2001 /* No match with Requested Device Type */
97c5b3c4 2002 p2p_parse_free(&msg);
2d43d37f 2003 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2004 }
97c5b3c4 2005 p2p_parse_free(&msg);
b22128ef 2006
2d43d37f
JB		 2007 if (!p2p->cfg->send_probe_resp) {
2008 /* Response generated elsewhere */
2009 return P2P_PREQ_NOT_PROCESSED;
2010 }
b22128ef
JM		 2011
2012 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2013 "P2P: Reply to P2P Probe Request in Listen state");
2014
2015 /*
2016 * We do not really have a specific BSS that this frame is advertising,
2017 * so build a frame that has some information in valid format. This is
2018 * really only used for discovery purposes, not to learn exact BSS
2019 * parameters.
2020 */
2021 ies = p2p_build_probe_resp_ies(p2p);
2022 if (ies == NULL)
2d43d37f 2023 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2024
2025 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2026 if (buf == NULL) {
2027 wpabuf_free(ies);
2d43d37f 2028 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2029 }
2030
2031 resp = NULL;
2032 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2033
2034 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2035 (WLAN_FC_STYPE_PROBE_RESP << 4));
2036 os_memcpy(resp->da, addr, ETH_ALEN);
2037 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2038 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2039 resp->u.probe_resp.beacon_int = host_to_le16(100);
2040 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2041 resp->u.probe_resp.capab_info =
2042 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2043 WLAN_CAPABILITY_PRIVACY |
2044 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2045
2046 wpabuf_put_u8(buf, WLAN_EID_SSID);
2047 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2048 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2049
2050 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2051 wpabuf_put_u8(buf, 8);
2052 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2053 wpabuf_put_u8(buf, 90 / 5);
2054 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2055 wpabuf_put_u8(buf, 180 / 5);
2056 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2057 wpabuf_put_u8(buf, 360 / 5);
2058 wpabuf_put_u8(buf, 480 / 5);
2059 wpabuf_put_u8(buf, 540 / 5);
2060
2061 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2062 wpabuf_put_u8(buf, 1);
2063 wpabuf_put_u8(buf, p2p->cfg->channel);
2064
2065 wpabuf_put_buf(buf, ies);
2066 wpabuf_free(ies);
2067
2068 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2069
2070 wpabuf_free(buf);
2d43d37f
JB		 2071
2072 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2073}
2074
2075
2d43d37f
JB		 2076enum p2p_probe_req_status
2077p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2078 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2079{
2d43d37f
JB		 2080 enum p2p_probe_req_status res;
2081
b22128ef
JM		 2082 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2083
2d43d37f 2084 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2085
2086 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2087 p2p->go_neg_peer &&
c5db8e51
KRK		 2088 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
2089 == 0) {
b22128ef
JM		 2090 /* Received a Probe Request from GO Negotiation peer */
2091 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2092 "P2P: Found GO Negotiation peer - try to start GO "
2093 "negotiation from timeout");
2094 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2095 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2096 }
2097
2098 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2099 p2p->invite_peer &&
c5db8e51
KRK		 2100 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2101 == 0) {
b22128ef
JM		 2102 /* Received a Probe Request from Invite peer */
2103 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2104 "P2P: Found Invite peer - try to start Invite from "
2105 "timeout");
2106 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2107 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2108 }
2109
2d43d37f 2110 return res;
b22128ef
JM		 2111}
2112
2113
2114static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2115 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2116{
2117 struct wpabuf *tmp;
2118 u8 *lpos;
2119 size_t tmplen;
2120 int res;
72044390 2121 u8 group_capab;
b22128ef 2122
4c08c0bd
JM		 2123 if (p2p_ie == NULL)
2124 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2125
2126 /*
2127 * (Re)Association Request - P2P IE
2128 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2129 * P2P Interface attribute (present if concurrent device and
2130 * P2P Management is enabled)
b22128ef
JM		 2131 */
2132 tmp = wpabuf_alloc(200);
2133 if (tmp == NULL)
2134 return -1;
2135
2136 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2137 group_capab = 0;
2138 if (p2p->num_groups > 0) {
2139 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2140 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2141 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2142 p2p->cross_connect)
2143 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2144 }
2145 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2146 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2147 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2148 p2p_buf_add_p2p_interface(tmp, p2p);
2149 p2p_buf_update_ie_hdr(tmp, lpos);
2150
2151 tmplen = wpabuf_len(tmp);
2152 if (tmplen > len)
2153 res = -1;
2154 else {
2155 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2156 res = tmplen;
2157 }
2158 wpabuf_free(tmp);
2159
2160 return res;
2161}
2162
2163
2164int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2165 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2166{
2167 struct wpabuf *tmp;
2168 u8 *lpos;
2169 struct p2p_device *peer;
2170 size_t tmplen;
2171 int res;
9675ce35 2172 size_t extra = 0;
b22128ef
JM		 2173
2174 if (!p2p_group)
4c08c0bd 2175 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2176
9675ce35
JM		 2177#ifdef CONFIG_WIFI_DISPLAY
2178 if (p2p->wfd_ie_assoc_req)
2179 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2180#endif /* CONFIG_WIFI_DISPLAY */
2181
b22128ef
JM		 2182 /*
2183 * (Re)Association Request - P2P IE
2184 * P2P Capability attribute (shall be present)
2185 * Extended Listen Timing (may be present)
2186 * P2P Device Info attribute (shall be present)
2187 */
9675ce35 2188 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2189 if (tmp == NULL)
2190 return -1;
2191
9675ce35
JM		 2192#ifdef CONFIG_WIFI_DISPLAY
2193 if (p2p->wfd_ie_assoc_req)
2194 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2195#endif /* CONFIG_WIFI_DISPLAY */
2196
b22128ef
JM		 2197 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2198
2199 lpos = p2p_buf_add_ie_hdr(tmp);
2200 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2201 if (p2p->ext_listen_interval)
2202 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2203 p2p->ext_listen_interval);
b22128ef
JM		 2204 p2p_buf_add_device_info(tmp, p2p, peer);
2205 p2p_buf_update_ie_hdr(tmp, lpos);
2206
2207 tmplen = wpabuf_len(tmp);
2208 if (tmplen > len)
2209 res = -1;
2210 else {
2211 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2212 res = tmplen;
2213 }
2214 wpabuf_free(tmp);
2215
2216 return res;
2217}
2218
2219
2220int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2221{
2222 struct wpabuf *p2p_ie;
2223 int ret;
2224
2225 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2226 if (p2p_ie == NULL)
2227 return 0;
2228
2229 ret = p2p_attr_text(p2p_ie, buf, end);
2230 wpabuf_free(p2p_ie);
2231 return ret;
2232}
2233
2234
c2d76aa6 2235int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2236{
0a70f34f
JM		 2237 struct p2p_message msg;
2238
0a70f34f 2239 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2240 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2241 return -1;
0a70f34f 2242
526ec4ae
JM		 2243 if (msg.p2p_device_addr) {
2244 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2245 return 0;
526ec4ae
JM		 2246 } else if (msg.device_id) {
2247 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2248 return 0;
0a70f34f 2249 }
c2d76aa6
MH		 2250 return -1;
2251}
0a70f34f 2252
c2d76aa6
MH		 2253
2254int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2255{
2256 struct wpabuf *p2p_ie;
2257 int ret;
2258
2259 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2260 P2P_IE_VENDOR_TYPE);
2261 if (p2p_ie == NULL)
2262 return -1;
2263 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2264 wpabuf_free(p2p_ie);
526ec4ae 2265 return ret;
0a70f34f
JM		 2266}
2267
2268
b22128ef
JM		 2269static void p2p_clear_go_neg(struct p2p_data *p2p)
2270{
2271 p2p->go_neg_peer = NULL;
2272 p2p_clear_timeout(p2p);
2273 p2p_set_state(p2p, P2P_IDLE);
2274}
2275
2276
2277void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2278{
2279 if (p2p->go_neg_peer == NULL) {
2280 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2281 "P2P: No pending Group Formation - "
2282 "ignore WPS registration success notification");
2283 return; /* No pending Group Formation */
2284 }
2285
2286 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2287 0) {
2288 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2289 "P2P: Ignore WPS registration success notification "
2290 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
2291 MAC2STR(mac_addr),
2292 MAC2STR(p2p->go_neg_peer->intended_addr));
2293 return; /* Ignore unexpected peer address */
2294 }
2295
2296 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2297 "P2P: Group Formation completed successfully with " MACSTR,
2298 MAC2STR(mac_addr));
2299
2300 p2p_clear_go_neg(p2p);
2301}
2302
2303
2304void p2p_group_formation_failed(struct p2p_data *p2p)
2305{
2306 if (p2p->go_neg_peer == NULL) {
2307 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2308 "P2P: No pending Group Formation - "
2309 "ignore group formation failure notification");
2310 return; /* No pending Group Formation */
2311 }
2312
2313 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2314 "P2P: Group Formation failed with " MACSTR,
2315 MAC2STR(p2p->go_neg_peer->intended_addr));
2316
2317 p2p_clear_go_neg(p2p);
2318}
2319
2320
2321struct p2p_data * p2p_init(const struct p2p_config *cfg)
2322{
2323 struct p2p_data *p2p;
2324
2325 if (cfg->max_peers < 1)
2326 return NULL;
2327
2328 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2329 if (p2p == NULL)
2330 return NULL;
2331 p2p->cfg = (struct p2p_config *) (p2p + 1);
2332 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2333 if (cfg->dev_name)
2334 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2335 if (cfg->manufacturer)
2336 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2337 if (cfg->model_name)
2338 p2p->cfg->model_name = os_strdup(cfg->model_name);
2339 if (cfg->model_number)
2340 p2p->cfg->model_number = os_strdup(cfg->model_number);
2341 if (cfg->serial_number)
2342 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2343 if (cfg->pref_chan) {
2344 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2345 sizeof(struct p2p_channel));
2346 if (p2p->cfg->pref_chan) {
2347 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2348 cfg->num_pref_chan *
2349 sizeof(struct p2p_channel));
2350 } else
2351 p2p->cfg->num_pref_chan = 0;
2352 }
b22128ef
JM		 2353
2354 p2p->min_disc_int = 1;
2355 p2p->max_disc_int = 3;
96beff11 2356 p2p->max_disc_tu = -1;
b22128ef
JM		 2357
2358 os_get_random(&p2p->next_tie_breaker, 1);
2359 p2p->next_tie_breaker &= 0x01;
2360 if (cfg->sd_request)
2361 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2362 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2363 if (cfg->concurrent_operations)
2364 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2365 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2366
2367 dl_list_init(&p2p->devices);
2368
2369 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2370 p2p_expiration_timeout, p2p, NULL);
2371
4f219667
JM		 2372 p2p->go_timeout = 100;
2373 p2p->client_timeout = 20;
2374
b22128ef
JM		 2375 return p2p;
2376}
2377
2378
2379void p2p_deinit(struct p2p_data *p2p)
2380{
9675ce35
JM		 2381#ifdef CONFIG_WIFI_DISPLAY
2382 wpabuf_free(p2p->wfd_ie_beacon);
2383 wpabuf_free(p2p->wfd_ie_probe_req);
2384 wpabuf_free(p2p->wfd_ie_probe_resp);
2385 wpabuf_free(p2p->wfd_ie_assoc_req);
2386 wpabuf_free(p2p->wfd_ie_invitation);
2387 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2388 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2389 wpabuf_free(p2p->wfd_ie_go_neg);
2390 wpabuf_free(p2p->wfd_dev_info);
2391 wpabuf_free(p2p->wfd_assoc_bssid);
2392 wpabuf_free(p2p->wfd_coupled_sink_info);
2393#endif /* CONFIG_WIFI_DISPLAY */
2394
b22128ef
JM		 2395 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2396 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2397 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2398 p2p_flush(p2p);
046ef4aa 2399 p2p_free_req_dev_types(p2p);
b22128ef 2400 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2401 os_free(p2p->cfg->manufacturer);
2402 os_free(p2p->cfg->model_name);
2403 os_free(p2p->cfg->model_number);
2404 os_free(p2p->cfg->serial_number);
21d996f7 2405 os_free(p2p->cfg->pref_chan);
b22128ef 2406 os_free(p2p->groups);
18708aad 2407 wpabuf_free(p2p->sd_resp);
3f9285ff 2408 os_free(p2p->after_scan_tx);
f95cac27 2409 p2p_remove_wps_vendor_extensions(p2p);
b22128ef
JM		 2410 os_free(p2p);
2411}
2412
2413
2414void p2p_flush(struct p2p_data *p2p)
2415{
2416 struct p2p_device *dev, *prev;
78db55b8 2417 p2p_stop_find(p2p);
b22128ef
JM		 2418 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2419 list) {
2420 dl_list_del(&dev->list);
2421 p2p_device_free(p2p, dev);
2422 }
2423 p2p_free_sd_queries(p2p);
f44ae207
JM		 2424 os_free(p2p->after_scan_tx);
2425 p2p->after_scan_tx = NULL;
b22128ef
JM		 2426}
2427
2428
9d562b79
SS		 2429int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2430{
2431 struct p2p_device *dev;
2432
2433 dev = p2p_get_device(p2p, addr);
2434 if (dev == NULL)
2435 return -1;
2436
2437 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Unauthorizing " MACSTR,
2438 MAC2STR(addr));
2439
2440 if (p2p->go_neg_peer == dev)
2441 p2p->go_neg_peer = NULL;
2442
2443 dev->wps_method = WPS_NOT_READY;
2444 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2445 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2446
2447 /* Check if after_scan_tx is for this peer. If so free it */
2448 if (p2p->after_scan_tx &&
2449 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2450 os_free(p2p->after_scan_tx);
2451 p2p->after_scan_tx = NULL;
2452 }
2453
2454 return 0;
2455}
2456
2457
b22128ef
JM		 2458int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2459{
2460 os_free(p2p->cfg->dev_name);
2461 if (dev_name) {
2462 p2p->cfg->dev_name = os_strdup(dev_name);
2463 if (p2p->cfg->dev_name == NULL)
2464 return -1;
2465 } else
2466 p2p->cfg->dev_name = NULL;
2467 return 0;
2468}
2469
2470
b6e01800
JM		 2471int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2472{
2473 os_free(p2p->cfg->manufacturer);
2474 p2p->cfg->manufacturer = NULL;
2475 if (manufacturer) {
2476 p2p->cfg->manufacturer = os_strdup(manufacturer);
2477 if (p2p->cfg->manufacturer == NULL)
2478 return -1;
2479 }
2480
2481 return 0;
2482}
2483
2484
2485int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2486{
2487 os_free(p2p->cfg->model_name);
2488 p2p->cfg->model_name = NULL;
2489 if (model_name) {
2490 p2p->cfg->model_name = os_strdup(model_name);
2491 if (p2p->cfg->model_name == NULL)
2492 return -1;
2493 }
2494
2495 return 0;
2496}
2497
2498
2499int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2500{
2501 os_free(p2p->cfg->model_number);
2502 p2p->cfg->model_number = NULL;
2503 if (model_number) {
2504 p2p->cfg->model_number = os_strdup(model_number);
2505 if (p2p->cfg->model_number == NULL)
2506 return -1;
2507 }
2508
2509 return 0;
2510}
2511
2512
2513int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2514{
2515 os_free(p2p->cfg->serial_number);
2516 p2p->cfg->serial_number = NULL;
2517 if (serial_number) {
2518 p2p->cfg->serial_number = os_strdup(serial_number);
2519 if (p2p->cfg->serial_number == NULL)
2520 return -1;
2521 }
2522
2523 return 0;
2524}
2525
2526
2527void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2528{
2529 p2p->cfg->config_methods = config_methods;
2530}
2531
2532
2533void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2534{
2535 os_memcpy(p2p->cfg->uuid, uuid, 16);
2536}
2537
2538
b22128ef
JM		 2539int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2540{
2541 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2542 return 0;
2543}
2544
2545
2546int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2547 size_t num_dev_types)
2548{
2549 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2550 num_dev_types = P2P_SEC_DEVICE_TYPES;
2551 p2p->cfg->num_sec_dev_types = num_dev_types;
2552 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2553 return 0;
2554}
2555
2556
f95cac27
JMB		 2557void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2558{
2559 int i;
2560
10c5d2a5 2561 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2562 wpabuf_free(p2p->wps_vendor_ext[i]);
2563 p2p->wps_vendor_ext[i] = NULL;
2564 }
2565}
2566
2567
2568int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2569 const struct wpabuf *vendor_ext)
2570{
2571 int i;
2572
2573 if (vendor_ext == NULL)
2574 return -1;
2575
10c5d2a5 2576 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2577 if (p2p->wps_vendor_ext[i] == NULL)
2578 break;
2579 }
10c5d2a5 2580 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2581 return -1;
2582
2583 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2584 if (p2p->wps_vendor_ext[i] == NULL)
2585 return -1;
2586
2587 return 0;
2588}
2589
2590
b22128ef
JM		 2591int p2p_set_country(struct p2p_data *p2p, const char *country)
2592{
2593 os_memcpy(p2p->cfg->country, country, 3);
2594 return 0;
2595}
2596
2597
2598void p2p_continue_find(struct p2p_data *p2p)
2599{
2600 struct p2p_device *dev;
2601 p2p_set_state(p2p, P2P_SEARCH);
2602 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2603 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2604 if (p2p_start_sd(p2p, dev) == 0)
2605 return;
2606 else
2607 break;
10c4edde
JM		 2608 } else if (dev->req_config_methods &&
2609 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
2610 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2611 "pending Provision Discovery Request to "
10c4edde 2612 MACSTR " (config methods 0x%x)",
c5db8e51 2613 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2614 dev->req_config_methods);
1ef2f7ff 2615 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2616 return;
2617 }
2618 }
2619
96beff11 2620 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2621}
2622
2623
2624static void p2p_sd_cb(struct p2p_data *p2p, int success)
2625{
2626 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2627 "P2P: Service Discovery Query TX callback: success=%d",
2628 success);
2629 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2630
2631 if (!success) {
2632 if (p2p->sd_peer) {
2633 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2634 p2p->sd_peer = NULL;
2635 }
2636 p2p_continue_find(p2p);
2637 return;
2638 }
2639
2640 if (p2p->sd_peer == NULL) {
2641 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2642 "P2P: No SD peer entry known");
2643 p2p_continue_find(p2p);
2644 return;
2645 }
2646
2647 /* Wait for response from the peer */
2648 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2649 p2p_set_timeout(p2p, 0, 200000);
2650}
2651
6b56cc2d
JS		 2652
2653/**
2654 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2655 * @p2p: P2P module context from p2p_init()
2656 */
19df9b07 2657static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2658{
2659 struct p2p_device *dev;
2660
2661 if (p2p->state != P2P_IDLE)
2662 return;
2663
2664 /*
2665 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2666 * requested.
6b56cc2d
JS		 2667 */
2668
2669 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2670 if (os_memcmp(p2p->pending_pd_devaddr,
2671 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2672 continue;
2673 if (!dev->req_config_methods)
2674 continue;
6b56cc2d
JS		 2675
2676 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2677 "pending Provision Discovery Request to "
6b56cc2d
JS		 2678 MACSTR " (config methods 0x%x)",
2679 MAC2STR(dev->info.p2p_device_addr),
2680 dev->req_config_methods);
175171ac
JM		 2681 p2p_send_prov_disc_req(p2p, dev,
2682 dev->flags & P2P_DEV_PD_FOR_JOIN, 0);
6b56cc2d
JS		 2683 return;
2684 }
2685}
2686
2687
b22128ef
JM		 2688static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2689{
2690 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2691 "P2P: Provision Discovery Request TX callback: success=%d",
2692 success);
6b56cc2d
JS		 2693
2694 /*
2695 * Postpone resetting the pending action state till after we actually
2696 * time out. This allows us to take some action like notifying any
2697 * interested parties about no response to the request.
2698 *
2699 * When the timer (below) goes off we check in IDLE, SEARCH, or
2700 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2701 * requests in, if this was still pending and then raise notification.
2702 */
b22128ef
JM		 2703
2704 if (!success) {
6b56cc2d
JS		 2705 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2706
488f4a71
JM		 2707 if (p2p->user_initiated_pd &&
2708 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2709 {
2710 /* Retry request from timeout to avoid busy loops */
2711 p2p->pending_action_state = P2P_PENDING_PD;
2712 p2p_set_timeout(p2p, 0, 50000);
2713 } else if (p2p->state != P2P_IDLE)
b22128ef 2714 p2p_continue_find(p2p);
6b56cc2d
JS		 2715 else if (p2p->user_initiated_pd) {
2716 p2p->pending_action_state = P2P_PENDING_PD;
2717 p2p_set_timeout(p2p, 0, 300000);
2718 }
b22128ef
JM		 2719 return;
2720 }
2721
6b56cc2d
JS		 2722 /*
2723 * This postponing, of resetting pending_action_state, needs to be
2724 * done only for user initiated PD requests and not internal ones.
2725 */
2726 if (p2p->user_initiated_pd)
2727 p2p->pending_action_state = P2P_PENDING_PD;
2728 else
2729 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2730
b22128ef
JM		 2731 /* Wait for response from the peer */
2732 if (p2p->state == P2P_SEARCH)
2733 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2734 p2p_set_timeout(p2p, 0, 200000);
2735}
2736
2737
2738int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
3dfd0484
YD		 2739 unsigned int age, int level, const u8 *ies,
2740 size_t ies_len)
b22128ef 2741{
3dfd0484 2742 p2p_add_device(p2p, bssid, freq, age, level, ies, ies_len, 1);
b22128ef 2743
b22128ef
JM		 2744 return 0;
2745}
2746
2747
2748void p2p_scan_res_handled(struct p2p_data *p2p)
2749{
2750 if (!p2p->p2p_scan_running) {
2751 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
2752 "running, but scan results received");
2753 }
2754 p2p->p2p_scan_running = 0;
2755 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2756
2757 if (p2p_run_after_scan(p2p))
2758 return;
2759 if (p2p->state == P2P_SEARCH)
2760 p2p_continue_find(p2p);
2761}
2762
2763
6d92fa6e 2764void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2765{
9675ce35
JM		 2766 u8 *len;
2767
2768#ifdef CONFIG_WIFI_DISPLAY
2769 if (p2p->wfd_ie_probe_req)
2770 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2771#endif /* CONFIG_WIFI_DISPLAY */
2772
2773 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2774 p2p_buf_add_capability(ies, p2p->dev_capab &
2775 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2776 if (dev_id)
2777 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2778 if (p2p->cfg->reg_class && p2p->cfg->channel)
2779 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2780 p2p->cfg->reg_class,
2781 p2p->cfg->channel);
2782 if (p2p->ext_listen_interval)
2783 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2784 p2p->ext_listen_interval);
2785 /* TODO: p2p_buf_add_operating_channel() if GO */
2786 p2p_buf_update_ie_hdr(ies, len);
2787}
2788
2789
206e1f42
JM		 2790size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2791{
9675ce35
JM		 2792 size_t len = 100;
2793
2794#ifdef CONFIG_WIFI_DISPLAY
2795 if (p2p && p2p->wfd_ie_probe_req)
2796 len += wpabuf_len(p2p->wfd_ie_probe_req);
2797#endif /* CONFIG_WIFI_DISPLAY */
2798
2799 return len;
206e1f42
JM		 2800}
2801
2802
b22128ef
JM		 2803int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2804{
2805 return p2p_attr_text(p2p_ie, buf, end);
2806}
2807
2808
2809static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2810{
2811 struct p2p_device *dev = p2p->go_neg_peer;
2812
2813 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2814 "P2P: GO Negotiation Request TX callback: success=%d",
2815 success);
2816
2817 if (dev == NULL) {
2818 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2819 "P2P: No pending GO Negotiation");
2820 return;
2821 }
2822
2823 if (success) {
b22128ef
JM		 2824 if (dev->flags & P2P_DEV_USER_REJECTED) {
2825 p2p_set_state(p2p, P2P_IDLE);
2826 return;
2827 }
a1d2ab32
NKG		 2828 } else if (dev->go_neg_req_sent) {
2829 /* Cancel the increment from p2p_connect_send() on failure */
2830 dev->go_neg_req_sent--;
b22128ef
JM		 2831 }
2832
2833 if (!success &&
c5db8e51 2834 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef
JM		 2835 !is_zero_ether_addr(dev->member_in_go_dev)) {
2836 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2837 "P2P: Peer " MACSTR " did not acknowledge request - "
2838 "try to use device discoverability through its GO",
c5db8e51 2839 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2840 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2841 p2p_send_dev_disc_req(p2p, dev);
2842 return;
2843 }
2844
2845 /*
2846 * Use P2P find, if needed, to find the other device from its listen
2847 * channel.
2848 */
2849 p2p_set_state(p2p, P2P_CONNECT);
504a5839 2850 p2p_set_timeout(p2p, 0, success ? 200000 : 100000);
b22128ef
JM		 2851}
2852
2853
2854static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2855{
2856 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2857 "P2P: GO Negotiation Response TX callback: success=%d",
2858 success);
2859 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2860 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2861 "P2P: Ignore TX callback event - GO Negotiation is "
2862 "not running anymore");
2863 return;
2864 }
2865 p2p_set_state(p2p, P2P_CONNECT);
504a5839 2866 p2p_set_timeout(p2p, 0, 250000);
b22128ef
JM		 2867}
2868
2869
2870static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2871{
2872 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2873 "P2P: GO Negotiation Response (failure) TX callback: "
2874 "success=%d", success);
fbe70272
JM		 2875 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2876 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2877 p2p->go_neg_peer->status);
2878 }
b22128ef
JM		 2879}
2880
2881
93b7ddd0
JM		 2882static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2883 enum p2p_send_action_result result)
b22128ef
JM		 2884{
2885 struct p2p_device *dev;
2886
2887 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
93b7ddd0
JM		 2888 "P2P: GO Negotiation Confirm TX callback: result=%d",
2889 result);
b22128ef 2890 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2891 if (result == P2P_SEND_ACTION_FAILED) {
2892 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2893 return;
2894 }
2895 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2896 /*
2897 * It looks like the TX status for GO Negotiation Confirm is
2898 * often showing failure even when the peer has actually
2899 * received the frame. Since the peer may change channels
2900 * immediately after having received the frame, we may not see
2901 * an Ack for retries, so just dropping a single frame may
2902 * trigger this. To allow the group formation to succeed if the
2903 * peer did indeed receive the frame, continue regardless of
2904 * the TX status.
2905 */
2906 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2907 "P2P: Assume GO Negotiation Confirm TX was actually "
2908 "received by the peer even though Ack was not "
2909 "reported");
2910 }
2911
2912 dev = p2p->go_neg_peer;
2913 if (dev == NULL)
2914 return;
2915
2916 p2p_go_complete(p2p, dev);
2917}
2918
2919
2920void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2921 const u8 *src, const u8 *bssid,
2922 enum p2p_send_action_result result)
b22128ef
JM		 2923{
2924 enum p2p_pending_action_state state;
93b7ddd0 2925 int success;
b22128ef
JM		 2926
2927 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2928 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2929 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2930 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2931 MAC2STR(bssid), result);
2932 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2933 state = p2p->pending_action_state;
2934 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2935 switch (state) {
2936 case P2P_NO_PENDING_ACTION:
2937 break;
2938 case P2P_PENDING_GO_NEG_REQUEST:
2939 p2p_go_neg_req_cb(p2p, success);
2940 break;
2941 case P2P_PENDING_GO_NEG_RESPONSE:
2942 p2p_go_neg_resp_cb(p2p, success);
2943 break;
2944 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2945 p2p_go_neg_resp_failure_cb(p2p, success);
2946 break;
2947 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2948 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 2949 break;
2950 case P2P_PENDING_SD:
2951 p2p_sd_cb(p2p, success);
2952 break;
2953 case P2P_PENDING_PD:
2954 p2p_prov_disc_cb(p2p, success);
2955 break;
2956 case P2P_PENDING_INVITATION_REQUEST:
2957 p2p_invitation_req_cb(p2p, success);
2958 break;
2959 case P2P_PENDING_INVITATION_RESPONSE:
2960 p2p_invitation_resp_cb(p2p, success);
2961 break;
2962 case P2P_PENDING_DEV_DISC_REQUEST:
2963 p2p_dev_disc_req_cb(p2p, success);
2964 break;
2965 case P2P_PENDING_DEV_DISC_RESPONSE:
2966 p2p_dev_disc_resp_cb(p2p, success);
2967 break;
2968 case P2P_PENDING_GO_DISC_REQ:
2969 p2p_go_disc_req_cb(p2p, success);
2970 break;
2971 }
2972}
2973
2974
2975void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2976 unsigned int duration)
2977{
2978 if (freq == p2p->pending_client_disc_freq) {
2979 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2980 "P2P: Client discoverability remain-awake completed");
2981 p2p->pending_client_disc_freq = 0;
2982 return;
2983 }
2984
2985 if (freq != p2p->pending_listen_freq) {
2986 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2987 "P2P: Unexpected listen callback for freq=%u "
2988 "duration=%u (pending_listen_freq=%u)",
2989 freq, duration, p2p->pending_listen_freq);
2990 return;
2991 }
2992
2993 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2994 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2995 "callback",
2996 p2p->pending_listen_sec, p2p->pending_listen_usec,
2997 p2p->pending_listen_freq);
2998 p2p->in_listen = 1;
0b8889d8 2999 p2p->drv_in_listen = freq;
b22128ef
JM		 3000 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3001 /*
3002 * Add 20 msec extra wait to avoid race condition with driver
3003 * remain-on-channel end event, i.e., give driver more time to
3004 * complete the operation before our timeout expires.
3005 */
3006 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3007 p2p->pending_listen_usec + 20000);
3008 }
3009
3010 p2p->pending_listen_freq = 0;
3011}
3012
3013
3014int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3015{
3016 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
3017 "state (freq=%u)", freq);
3018 p2p->drv_in_listen = 0;
3019 if (p2p->in_listen)
3020 return 0; /* Internal timeout will trigger the next step */
3021
3022 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c
JM		 3023 if (p2p->go_neg_peer->connect_reqs >= 120) {
3024 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3025 "P2P: Timeout on sending GO Negotiation "
3026 "Request without getting response");
3027 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3028 return 0;
3029 }
3030
b22128ef
JM		 3031 p2p_set_state(p2p, P2P_CONNECT);
3032 p2p_connect_send(p2p, p2p->go_neg_peer);
3033 return 1;
3034 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3035 if (p2p->p2p_scan_running) {
3036 /*
3037 * Search is already in progress. This can happen if
3038 * an Action frame RX is reported immediately after
3039 * the end of a remain-on-channel operation and the
3040 * response frame to that is sent using an offchannel
3041 * operation while in p2p_find. Avoid an attempt to
3042 * restart a scan here.
3043 */
3044 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan "
3045 "already in progress - do not try to start a "
3046 "new one");
3047 return 1;
3048 }
3fe8b68d
JM		 3049 if (p2p->pending_listen_freq) {
3050 /*
3051 * Better wait a bit if the driver is unable to start
3052 * offchannel operation for some reason. p2p_search()
3053 * will be started from internal timeout.
3054 */
3055 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Listen "
3056 "operation did not seem to start - delay "
3057 "search phase to avoid busy loop");
3058 p2p_set_timeout(p2p, 0, 100000);
3059 return 1;
3060 }
37448ede
JM		 3061 if (p2p->search_delay) {
3062 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay "
3063 "search operation by %u ms",
3064 p2p->search_delay);
3065 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3066 (p2p->search_delay % 1000) * 1000);
3067 return 1;
3068 }
b22128ef
JM		 3069 p2p_search(p2p);
3070 return 1;
3071 }
3072
3073 return 0;
3074}
3075
3076
3077static void p2p_timeout_connect(struct p2p_data *p2p)
3078{
3079 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3080 if (p2p->go_neg_peer &&
3081 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
3082 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Wait for GO "
3083 "Negotiation Confirm timed out - assume GO "
3084 "Negotiation failed");
3085 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3086 return;
3087 }
b22128ef 3088 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3089 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3090}
3091
3092
3093static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3094{
3095 if (p2p->go_neg_peer) {
3096 if (p2p->drv_in_listen) {
3097 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
3098 "still in Listen state; wait for it to "
3099 "complete");
3100 return;
3101 }
9dac8c3e
FM		 3102
3103 if (p2p->go_neg_peer->connect_reqs >= 120) {
3104 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3105 "P2P: Timeout on sending GO Negotiation "
3106 "Request without getting response");
3107 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3108 return;
3109 }
3110
b22128ef
JM		 3111 p2p_set_state(p2p, P2P_CONNECT);
3112 p2p_connect_send(p2p, p2p->go_neg_peer);
3113 } else
3114 p2p_set_state(p2p, P2P_IDLE);
3115}
3116
3117
3118static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3119{
3120 /*
3121 * TODO: could remain constantly in Listen state for some time if there
3122 * are no other concurrent uses for the radio. For now, go to listen
3123 * state once per second to give other uses a chance to use the radio.
3124 */
3125 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
d58ed4e3 3126 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3127}
3128
3129
3130static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3131{
3132 struct p2p_device *dev = p2p->go_neg_peer;
3133
3134 if (dev == NULL) {
3135 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3136 "P2P: Unknown GO Neg peer - stop GO Neg wait");
3137 return;
3138 }
3139
3140 dev->wait_count++;
3141 if (dev->wait_count >= 120) {
3142 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3143 "P2P: Timeout on waiting peer to become ready for GO "
3144 "Negotiation");
3145 p2p_go_neg_failed(p2p, dev, -1);
3146 return;
3147 }
3148
3149 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3150 "P2P: Go to Listen state while waiting for the peer to become "
3151 "ready for GO Negotiation");
3152 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3153 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3154}
3155
3156
3157static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3158{
3159 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3160 "P2P: Service Discovery Query timeout");
3161 if (p2p->sd_peer) {
3162 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3163 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
3164 p2p->sd_peer = NULL;
3165 }
3166 p2p_continue_find(p2p);
3167}
3168
3169
3170static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3171{
3172 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3173 "P2P: Provision Discovery Request timeout");
3174 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3175 p2p_continue_find(p2p);
3176}
3177
3178
6b56cc2d
JS		 3179static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3180{
3181 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3182
3183 /*
3184 * For user initiated PD requests that we have not gotten any responses
3185 * for while in IDLE state, we retry them a couple of times before
3186 * giving up.
3187 */
3188 if (!p2p->user_initiated_pd)
3189 return;
3190
3191 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3192 "P2P: User initiated Provision Discovery Request timeout");
3193
3194 if (p2p->pd_retries) {
3195 p2p->pd_retries--;
3196 p2p_retry_pd(p2p);
3197 } else {
175171ac
JM		 3198 struct p2p_device *dev;
3199 int for_join = 0;
3200
3201 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3202 if (os_memcmp(p2p->pending_pd_devaddr,
3203 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3204 continue;
3205 if (dev->req_config_methods &&
3206 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3207 for_join = 1;
3208 }
3209
349b213c
JS		 3210 if (p2p->cfg->prov_disc_fail)
3211 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3212 p2p->pending_pd_devaddr,
175171ac
JM		 3213 for_join ?
3214 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3215 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3216 p2p_reset_pending_pd(p2p);
3217 }
3218}
3219
3220
b22128ef
JM		 3221static void p2p_timeout_invite(struct p2p_data *p2p)
3222{
3223 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3224 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3225 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3226 /*
3227 * Better remain on operating channel instead of listen channel
3228 * when running a group.
3229 */
3230 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
3231 "active GO role - wait on operating channel");
3232 p2p_set_timeout(p2p, 0, 100000);
3233 return;
3234 }
96beff11 3235 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3236}
3237
3238
3239static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3240{
3241 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3242 p2p_set_state(p2p, P2P_INVITE);
3243 p2p_invite_send(p2p, p2p->invite_peer,
3244 p2p->invite_go_dev_addr);
3245 } else {
3246 if (p2p->invite_peer) {
3247 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3248 "P2P: Invitation Request retry limit reached");
3249 if (p2p->cfg->invitation_result)
3250 p2p->cfg->invitation_result(
3251 p2p->cfg->cb_ctx, -1, NULL);
3252 }
3253 p2p_set_state(p2p, P2P_IDLE);
3254 }
3255}
3256
3257
3258static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3259{
3260 struct p2p_data *p2p = eloop_ctx;
3261
3262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
3263 p2p_state_txt(p2p->state));
3264
3265 p2p->in_listen = 0;
3266
3267 switch (p2p->state) {
3268 case P2P_IDLE:
6b56cc2d
JS		 3269 /* Check if we timed out waiting for PD req */
3270 if (p2p->pending_action_state == P2P_PENDING_PD)
3271 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3272 break;
3273 case P2P_SEARCH:
6b56cc2d
JS		 3274 /* Check if we timed out waiting for PD req */
3275 if (p2p->pending_action_state == P2P_PENDING_PD)
3276 p2p_timeout_prov_disc_req(p2p);
37448ede
JM		 3277 if (p2p->search_delay && !p2p->in_search_delay) {
3278 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay "
3279 "search operation by %u ms",
3280 p2p->search_delay);
3281 p2p->in_search_delay = 1;
3282 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3283 (p2p->search_delay % 1000) * 1000);
3284 break;
3285 }
3286 p2p->in_search_delay = 0;
b22128ef
JM		 3287 p2p_search(p2p);
3288 break;
3289 case P2P_CONNECT:
3290 p2p_timeout_connect(p2p);
3291 break;
3292 case P2P_CONNECT_LISTEN:
3293 p2p_timeout_connect_listen(p2p);
3294 break;
3295 case P2P_GO_NEG:
3296 break;
3297 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3298 /* Check if we timed out waiting for PD req */
3299 if (p2p->pending_action_state == P2P_PENDING_PD)
3300 p2p_timeout_prov_disc_req(p2p);
3301
b22128ef
JM		 3302 if (p2p->ext_listen_only) {
3303 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3304 "P2P: Extended Listen Timing - Listen State "
3305 "completed");
3306 p2p->ext_listen_only = 0;
3307 p2p_set_state(p2p, P2P_IDLE);
3308 }
3309 break;
3310 case P2P_WAIT_PEER_CONNECT:
3311 p2p_timeout_wait_peer_connect(p2p);
3312 break;
3313 case P2P_WAIT_PEER_IDLE:
3314 p2p_timeout_wait_peer_idle(p2p);
3315 break;
3316 case P2P_SD_DURING_FIND:
3317 p2p_timeout_sd_during_find(p2p);
3318 break;
3319 case P2P_PROVISIONING:
3320 break;
3321 case P2P_PD_DURING_FIND:
3322 p2p_timeout_prov_disc_during_find(p2p);
3323 break;
3324 case P2P_INVITE:
3325 p2p_timeout_invite(p2p);
3326 break;
3327 case P2P_INVITE_LISTEN:
3328 p2p_timeout_invite_listen(p2p);
3329 break;
39185dfa
JM		 3330 case P2P_SEARCH_WHEN_READY:
3331 break;
99fcd404
JM		 3332 case P2P_CONTINUE_SEARCH_WHEN_READY:
3333 break;
b22128ef
JM		 3334 }
3335}
3336
3337
3338int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3339{
3340 struct p2p_device *dev;
3341
3342 dev = p2p_get_device(p2p, peer_addr);
3343 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
3344 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
3345 if (dev == NULL) {
3346 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
3347 " unknown", MAC2STR(peer_addr));
3348 return -1;
3349 }
3350 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3351 dev->flags |= P2P_DEV_USER_REJECTED;
3352 return 0;
3353}
3354
3355
e5a359cf 3356const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3357{
3358 switch (method) {
3359 case WPS_NOT_READY:
3360 return "not-ready";
b22128ef
JM		 3361 case WPS_PIN_DISPLAY:
3362 return "Display";
3363 case WPS_PIN_KEYPAD:
3364 return "Keypad";
3365 case WPS_PBC:
3366 return "PBC";
3367 }
3368
3369 return "??";
3370}
3371
3372
3373static const char * p2p_go_state_text(enum p2p_go_state go_state)
3374{
3375 switch (go_state) {
3376 case UNKNOWN_GO:
3377 return "unknown";
3378 case LOCAL_GO:
3379 return "local";
3380 case REMOTE_GO:
3381 return "remote";
3382 }
3383
3384 return "??";
3385}
3386
3387
b3ffc80b
JM		 3388const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3389 const u8 *addr, int next)
b22128ef
JM		 3390{
3391 struct p2p_device *dev;
b22128ef
JM		 3392
3393 if (addr)
3394 dev = p2p_get_device(p2p, addr);
3395 else
3396 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3397
3398 if (dev && next) {
3399 dev = dl_list_first(&dev->list, struct p2p_device, list);
3400 if (&dev->list == &p2p->devices)
3401 dev = NULL;
3402 }
3403
3404 if (dev == NULL)
b3ffc80b
JM		 3405 return NULL;
3406
3407 return &dev->info;
3408}
3409
3410
3411int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3412 char *buf, size_t buflen)
3413{
3414 struct p2p_device *dev;
3415 int res;
3416 char *pos, *end;
3417 struct os_time now;
3418
3419 if (info == NULL)
b22128ef
JM		 3420 return -1;
3421
b3ffc80b
JM		 3422 dev = (struct p2p_device *) (((u8 *) info) -
3423 offsetof(struct p2p_device, info));
3424
b22128ef
JM		 3425 pos = buf;
3426 end = buf + buflen;
3427
b22128ef
JM		 3428 os_get_time(&now);
3429 res = os_snprintf(pos, end - pos,
3430 "age=%d\n"
3431 "listen_freq=%d\n"
b22128ef
JM		 3432 "wps_method=%s\n"
3433 "interface_addr=" MACSTR "\n"
3434 "member_in_go_dev=" MACSTR "\n"
3435 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3436 "go_neg_req_sent=%d\n"
3437 "go_state=%s\n"
3438 "dialog_token=%u\n"
3439 "intended_addr=" MACSTR "\n"
3440 "country=%c%c\n"
3441 "oper_freq=%d\n"
3442 "req_config_methods=0x%x\n"
10c4edde 3443 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3444 "status=%d\n"
3445 "wait_count=%u\n"
3446 "invitation_reqs=%u\n",
3447 (int) (now.sec - dev->last_seen.sec),
3448 dev->listen_freq,
b22128ef
JM		 3449 p2p_wps_method_text(dev->wps_method),
3450 MAC2STR(dev->interface_addr),
3451 MAC2STR(dev->member_in_go_dev),
3452 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3453 dev->go_neg_req_sent,
3454 p2p_go_state_text(dev->go_state),
3455 dev->dialog_token,
3456 MAC2STR(dev->intended_addr),
3457 dev->country[0] ? dev->country[0] : '_',
3458 dev->country[1] ? dev->country[1] : '_',
3459 dev->oper_freq,
3460 dev->req_config_methods,
3461 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3462 "[PROBE_REQ_ONLY]" : "",
3463 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3464 dev->flags & P2P_DEV_NOT_YET_READY ?
3465 "[NOT_YET_READY]" : "",
3466 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3467 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3468 "",
3469 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3470 "[PD_PEER_DISPLAY]" : "",
3471 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3472 "[PD_PEER_KEYPAD]" : "",
3473 dev->flags & P2P_DEV_USER_REJECTED ?
3474 "[USER_REJECTED]" : "",
3475 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3476 "[PEER_WAITING_RESPONSE]" : "",
3477 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3478 "[PREFER_PERSISTENT_GROUP]" : "",
3479 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3480 "[WAIT_GO_NEG_RESPONSE]" : "",
3481 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3482 "[WAIT_GO_NEG_CONFIRM]" : "",
3483 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3484 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3485 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3486 "[FORCE_FREQ]" : "",
3487 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3488 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3489 dev->status,
3490 dev->wait_count,
3491 dev->invitation_reqs);
3492 if (res < 0 || res >= end - pos)
3493 return pos - buf;
3494 pos += res;
3495
3496 if (dev->ext_listen_period) {
3497 res = os_snprintf(pos, end - pos,
3498 "ext_listen_period=%u\n"
3499 "ext_listen_interval=%u\n",
3500 dev->ext_listen_period,
3501 dev->ext_listen_interval);
3502 if (res < 0 || res >= end - pos)
3503 return pos - buf;
3504 pos += res;
3505 }
3506
3507 if (dev->oper_ssid_len) {
3508 res = os_snprintf(pos, end - pos,
3509 "oper_ssid=%s\n",
3510 wpa_ssid_txt(dev->oper_ssid,
3511 dev->oper_ssid_len));
3512 if (res < 0 || res >= end - pos)
3513 return pos - buf;
3514 pos += res;
3515 }
3516
9675ce35
JM		 3517#ifdef CONFIG_WIFI_DISPLAY
3518 if (dev->info.wfd_subelems) {
3519 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3520 if (res < 0 || res >= end - pos)
3521 return pos - buf;
3522 pos += res;
3523
3524 pos += wpa_snprintf_hex(pos, end - pos,
3525 wpabuf_head(dev->info.wfd_subelems),
3526 wpabuf_len(dev->info.wfd_subelems));
3527
3528 res = os_snprintf(pos, end - pos, "\n");
3529 if (res < 0 || res >= end - pos)
3530 return pos - buf;
3531 pos += res;
3532 }
3533#endif /* CONFIG_WIFI_DISPLAY */
3534
b22128ef
JM		 3535 return pos - buf;
3536}
3537
3538
b3bcc0f5
JM		 3539int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3540{
3541 return p2p_get_device(p2p, addr) != NULL;
3542}
3543
3544
b22128ef
JM		 3545void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3546{
3547 if (enabled) {
3548 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3549 "discoverability enabled");
3550 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3551 } else {
3552 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3553 "discoverability disabled");
3554 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3555 }
3556}
3557
3558
3559static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3560 u32 duration2, u32 interval2)
3561{
3562 struct wpabuf *req;
3563 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3564 u8 *len;
3565
3566 req = wpabuf_alloc(100);
3567 if (req == NULL)
3568 return NULL;
3569
3570 if (duration1 || interval1) {
3571 os_memset(&desc1, 0, sizeof(desc1));
3572 desc1.count_type = 1;
3573 desc1.duration = duration1;
3574 desc1.interval = interval1;
3575 ptr1 = &desc1;
3576
3577 if (duration2 || interval2) {
3578 os_memset(&desc2, 0, sizeof(desc2));
3579 desc2.count_type = 2;
3580 desc2.duration = duration2;
3581 desc2.interval = interval2;
3582 ptr2 = &desc2;
3583 }
3584 }
3585
3586 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3587 len = p2p_buf_add_ie_hdr(req);
3588 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3589 p2p_buf_update_ie_hdr(req, len);
3590
3591 return req;
3592}
3593
3594
3595int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3596 const u8 *own_interface_addr, unsigned int freq,
3597 u32 duration1, u32 interval1, u32 duration2,
3598 u32 interval2)
3599{
3600 struct wpabuf *req;
3601
3602 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
3603 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
3604 "int1=%u dur2=%u int2=%u",
3605 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3606 freq, duration1, interval1, duration2, interval2);
3607
3608 req = p2p_build_presence_req(duration1, interval1, duration2,
3609 interval2);
3610 if (req == NULL)
3611 return -1;
3612
3613 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3614 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3615 go_interface_addr,
3616 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
b22128ef
JM		 3617 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3618 "P2P: Failed to send Action frame");
3619 }
3620 wpabuf_free(req);
3621
3622 return 0;
3623}
3624
3625
3626static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3627 size_t noa_len, u8 dialog_token)
3628{
3629 struct wpabuf *resp;
3630 u8 *len;
3631
3632 resp = wpabuf_alloc(100 + noa_len);
3633 if (resp == NULL)
3634 return NULL;
3635
3636 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3637 len = p2p_buf_add_ie_hdr(resp);
3638 p2p_buf_add_status(resp, status);
3639 if (noa) {
3640 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3641 wpabuf_put_le16(resp, noa_len);
3642 wpabuf_put_data(resp, noa, noa_len);
3643 } else
3644 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3645 p2p_buf_update_ie_hdr(resp, len);
3646
3647 return resp;
3648}
3649
3650
3651static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3652 const u8 *sa, const u8 *data, size_t len,
3653 int rx_freq)
3654{
3655 struct p2p_message msg;
3656 u8 status;
3657 struct wpabuf *resp;
3658 size_t g;
3659 struct p2p_group *group = NULL;
3660 int parsed = 0;
3661 u8 noa[50];
3662 int noa_len;
3663
3664 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3665 "P2P: Received P2P Action - P2P Presence Request");
3666
3667 for (g = 0; g < p2p->num_groups; g++) {
3668 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3669 ETH_ALEN) == 0) {
3670 group = p2p->groups[g];
3671 break;
3672 }
3673 }
3674 if (group == NULL) {
3675 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3676 "P2P: Ignore P2P Presence Request for unknown group "
3677 MACSTR, MAC2STR(da));
3678 return;
3679 }
3680
3681 if (p2p_parse(data, len, &msg) < 0) {
3682 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3683 "P2P: Failed to parse P2P Presence Request");
3684 status = P2P_SC_FAIL_INVALID_PARAMS;
3685 goto fail;
3686 }
3687 parsed = 1;
3688
3689 if (msg.noa == NULL) {
3690 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3691 "P2P: No NoA attribute in P2P Presence Request");
3692 status = P2P_SC_FAIL_INVALID_PARAMS;
3693 goto fail;
3694 }
3695
3696 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3697
3698fail:
3699 if (p2p->cfg->get_noa)
3700 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3701 sizeof(noa));
3702 else
3703 noa_len = -1;
3704 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3705 noa_len > 0 ? noa_len : 0,
3706 msg.dialog_token);
3707 if (parsed)
3708 p2p_parse_free(&msg);
3709 if (resp == NULL)
3710 return;
3711
3712 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3713 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3714 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
b22128ef
JM		 3715 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3716 "P2P: Failed to send Action frame");
3717 }
3718 wpabuf_free(resp);
3719}
3720
3721
3722static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3723 const u8 *sa, const u8 *data, size_t len)
3724{
3725 struct p2p_message msg;
3726
3727 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3728 "P2P: Received P2P Action - P2P Presence Response");
3729
3730 if (p2p_parse(data, len, &msg) < 0) {
3731 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3732 "P2P: Failed to parse P2P Presence Response");
3733 return;
3734 }
3735
3736 if (msg.status == NULL || msg.noa == NULL) {
3737 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3738 "P2P: No Status or NoA attribute in P2P Presence "
3739 "Response");
3740 p2p_parse_free(&msg);
3741 return;
3742 }
3743
3744 if (*msg.status) {
3745 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3746 "P2P: P2P Presence Request was rejected: status %u",
3747 *msg.status);
3748 p2p_parse_free(&msg);
3749 return;
3750 }
3751
3752 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3753 "P2P: P2P Presence Request was accepted");
3754 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3755 msg.noa, msg.noa_len);
3756 /* TODO: process NoA */
3757 p2p_parse_free(&msg);
3758}
3759
3760
3761static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3762{
3763 struct p2p_data *p2p = eloop_ctx;
3764
3765 if (p2p->ext_listen_interval) {
3766 /* Schedule next extended listen timeout */
3767 eloop_register_timeout(p2p->ext_listen_interval_sec,
3768 p2p->ext_listen_interval_usec,
3769 p2p_ext_listen_timeout, p2p, NULL);
3770 }
3771
f7a69057
JM		 3772 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3773 /*
3774 * This should not really happen, but it looks like the Listen
3775 * command may fail is something else (e.g., a scan) was
3776 * running at an inconvenient time. As a workaround, allow new
3777 * Extended Listen operation to be started.
3778 */
3779 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
3780 "Extended Listen operation had not been completed - "
3781 "try again");
3782 p2p->ext_listen_only = 0;
3783 p2p_set_state(p2p, P2P_IDLE);
3784 }
3785
b22128ef
JM		 3786 if (p2p->state != P2P_IDLE) {
3787 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
3788 "Listen timeout in active state (%s)",
3789 p2p_state_txt(p2p->state));
3790 return;
3791 }
3792
3793 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
3794 p2p->ext_listen_only = 1;
3795 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
3796 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
3797 "Listen state for Extended Listen Timing");
3798 p2p->ext_listen_only = 0;
3799 }
3800}
3801
3802
3803int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3804 unsigned int interval)
3805{
3806 if (period > 65535 || interval > 65535 || period > interval ||
3807 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
3808 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3809 "P2P: Invalid Extended Listen Timing request: "
3810 "period=%u interval=%u", period, interval);
3811 return -1;
3812 }
3813
3814 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3815
3816 if (interval == 0) {
3817 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3818 "P2P: Disabling Extended Listen Timing");
3819 p2p->ext_listen_period = 0;
3820 p2p->ext_listen_interval = 0;
3821 return 0;
3822 }
3823
3824 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3825 "P2P: Enabling Extended Listen Timing: period %u msec, "
3826 "interval %u msec", period, interval);
3827 p2p->ext_listen_period = period;
3828 p2p->ext_listen_interval = interval;
3829 p2p->ext_listen_interval_sec = interval / 1000;
3830 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3831
3832 eloop_register_timeout(p2p->ext_listen_interval_sec,
3833 p2p->ext_listen_interval_usec,
3834 p2p_ext_listen_timeout, p2p, NULL);
3835
3836 return 0;
3837}
3838
3839
3840void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3841 const u8 *ie, size_t ie_len)
3842{
3843 struct p2p_message msg;
3844
3845 if (bssid == NULL || ie == NULL)
3846 return;
3847
3848 os_memset(&msg, 0, sizeof(msg));
3849 if (p2p_parse_ies(ie, ie_len, &msg))
3850 return;
3851 if (msg.minor_reason_code == NULL)
3852 return;
3853
3854 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3855 "P2P: Deauthentication notification BSSID " MACSTR
3856 " reason_code=%u minor_reason_code=%u",
3857 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3858
3859 p2p_parse_free(&msg);
3860}
3861
3862
3863void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3864 const u8 *ie, size_t ie_len)
3865{
3866 struct p2p_message msg;
3867
3868 if (bssid == NULL || ie == NULL)
3869 return;
3870
3871 os_memset(&msg, 0, sizeof(msg));
3872 if (p2p_parse_ies(ie, ie_len, &msg))
3873 return;
3874 if (msg.minor_reason_code == NULL)
3875 return;
3876
3877 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3878 "P2P: Disassociation notification BSSID " MACSTR
3879 " reason_code=%u minor_reason_code=%u",
3880 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3881
3882 p2p_parse_free(&msg);
3883}
3884
3885
3886void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3887{
3888 if (enabled) {
3889 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3890 "Device operations enabled");
3891 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3892 } else {
3893 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3894 "Device operations disabled");
3895 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3896 }
3897}
3898
3899
3900int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3901{
3902 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
3903 return -1;
3904
3905 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
3906 "reg_class %u channel %u", reg_class, channel);
3907 p2p->cfg->reg_class = reg_class;
3908 p2p->cfg->channel = channel;
3909
3910 return 0;
3911}
3912
3913
3914int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3915{
3916 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
3917 if (postfix == NULL) {
3918 p2p->cfg->ssid_postfix_len = 0;
3919 return 0;
3920 }
3921 if (len > sizeof(p2p->cfg->ssid_postfix))
3922 return -1;
3923 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3924 p2p->cfg->ssid_postfix_len = len;
3925 return 0;
3926}
3927
3928
2463ba70
JS		 3929int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3930 int cfg_op_channel)
3931{
3932 if (p2p_channel_to_freq(p2p->cfg->country, op_reg_class, op_channel)
3933 < 0)
3934 return -1;
3935
3936 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, "P2P: Set Operating channel: "
3937 "reg_class %u channel %u", op_reg_class, op_channel);
3938 p2p->cfg->op_reg_class = op_reg_class;
3939 p2p->cfg->op_channel = op_channel;
3940 p2p->cfg->cfg_op_channel = cfg_op_channel;
3941 return 0;
3942}
3943
3944
21d996f7
JM		 3945int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
3946 const struct p2p_channel *pref_chan)
3947{
3948 struct p2p_channel *n;
3949
3950 if (pref_chan) {
3951 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
3952 if (n == NULL)
3953 return -1;
3954 os_memcpy(n, pref_chan,
3955 num_pref_chan * sizeof(struct p2p_channel));
3956 } else
3957 n = NULL;
3958
3959 os_free(p2p->cfg->pref_chan);
3960 p2p->cfg->pref_chan = n;
3961 p2p->cfg->num_pref_chan = num_pref_chan;
3962
3963 return 0;
3964}
3965
3966
b22128ef
JM		 3967int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3968 u8 *iface_addr)
3969{
3970 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3971 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3972 return -1;
3973 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3974 return 0;
3975}
80c9582a
JM		 3976
3977
4147a2cc
JM		 3978int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
3979 u8 *dev_addr)
3980{
3981 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3982 if (dev == NULL)
3983 return -1;
c5db8e51 3984 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 3985 return 0;
3986}
3987
3988
80c9582a
JM		 3989void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3990{
3991 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3992 if (is_zero_ether_addr(p2p->peer_filter))
3993 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3994 "filter");
3995 else
3996 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3997 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3998}
72044390
JM		 3999
4000
4001void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4002{
4003 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
4004 enabled ? "enabled" : "disabled");
4005 if (p2p->cross_connect == enabled)
4006 return;
4007 p2p->cross_connect = enabled;
4008 /* TODO: may need to tear down any action group where we are GO(?) */
4009}
f8d0131a
JM		 4010
4011
4012int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4013{
4014 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4015 if (dev == NULL)
4016 return -1;
4017 if (dev->oper_freq <= 0)
4018 return -1;
4019 return dev->oper_freq;
4020}
0f66abd2
SS		 4021
4022
4023void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4024{
4025 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
4026 enabled ? "enabled" : "disabled");
4027 p2p->cfg->p2p_intra_bss = enabled;
4028}
b5c9da8d
JM		 4029
4030
4031void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
4032{
4033 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
4034 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
4035}
3f9285ff
JM		 4036
4037
4038int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4039 const u8 *src, const u8 *bssid, const u8 *buf,
4040 size_t len, unsigned int wait_time)
4041{
4042 if (p2p->p2p_scan_running) {
4043 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
4044 "frame TX until p2p_scan completes");
4045 if (p2p->after_scan_tx) {
4046 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
4047 "previous pending Action frame TX");
4048 os_free(p2p->after_scan_tx);
4049 }
4050 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4051 len);
4052 if (p2p->after_scan_tx == NULL)
4053 return -1;
4054 p2p->after_scan_tx->freq = freq;
4055 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4056 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4057 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4058 p2p->after_scan_tx->len = len;
4059 p2p->after_scan_tx->wait_time = wait_time;
4060 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4061 return 0;
4062 }
4063
4064 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4065 buf, len, wait_time);
4066}
7cfc4ac3
AGS		 4067
4068
4069void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4070 int freq_overall)
4071{
4072 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Best channel: 2.4 GHz: %d,"
4073 " 5 GHz: %d, overall: %d", freq_24, freq_5, freq_overall);
4074 p2p->best_freq_24 = freq_24;
4075 p2p->best_freq_5 = freq_5;
4076 p2p->best_freq_overall = freq_overall;
4077}
231bbd03
SS		 4078
4079
4080const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4081{
4082 if (p2p == NULL || p2p->go_neg_peer == NULL)
4083 return NULL;
c5db8e51 4084 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4085}
c165d81e
JB		 4086
4087
4088const struct p2p_peer_info *
4089p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4090{
4091 struct p2p_device *dev;
4092
4093 if (addr) {
4094 dev = p2p_get_device(p2p, addr);
4095 if (!dev)
4096 return NULL;
4097
4098 if (!next) {
4099 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4100 return NULL;
4101
4102 return &dev->info;
4103 } else {
4104 do {
4105 dev = dl_list_first(&dev->list,
4106 struct p2p_device,
4107 list);
4108 if (&dev->list == &p2p->devices)
4109 return NULL;
4110 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4111 }
4112 } else {
4113 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4114 if (!dev)
4115 return NULL;
4116 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4117 dev = dl_list_first(&dev->list,
4118 struct p2p_device,
4119 list);
4120 if (&dev->list == &p2p->devices)
4121 return NULL;
4122 }
4123 }
4124
4125 return &dev->info;
4126}
303f60d3
JM		 4127
4128
4129int p2p_in_progress(struct p2p_data *p2p)
4130{
4131 if (p2p == NULL)
4132 return 0;
99fcd404
JM		 4133 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SEARCH_WHEN_READY ||
4134 p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY)
4135 return 2;
fc6997b3 4136 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4137}
4f219667
JM		 4138
4139
4140void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4141 u8 client_timeout)
4142{
4143 if (p2p) {
4144 p2p->go_timeout = go_timeout;
4145 p2p->client_timeout = client_timeout;
4146 }
4147}
99fcd404
JM		 4148
4149
4150void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay)
4151{
4152 if (p2p && p2p->search_delay < delay)
4153 p2p->search_delay = delay;
4154}
9675ce35
JM		 4155
4156
4157#ifdef CONFIG_WIFI_DISPLAY
4158
4159static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4160{
4161 size_t g;
4162 struct p2p_group *group;
4163
4164 for (g = 0; g < p2p->num_groups; g++) {
4165 group = p2p->groups[g];
4166 p2p_group_update_ies(group);
4167 }
4168}
4169
4170
4171int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4172{
4173 wpabuf_free(p2p->wfd_ie_beacon);
4174 p2p->wfd_ie_beacon = ie;
4175 p2p_update_wfd_ie_groups(p2p);
4176 return 0;
4177}
4178
4179
4180int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4181{
4182 wpabuf_free(p2p->wfd_ie_probe_req);
4183 p2p->wfd_ie_probe_req = ie;
4184 return 0;
4185}
4186
4187
4188int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4189{
4190 wpabuf_free(p2p->wfd_ie_probe_resp);
4191 p2p->wfd_ie_probe_resp = ie;
4192 p2p_update_wfd_ie_groups(p2p);
4193 return 0;
4194}
4195
4196
4197int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4198{
4199 wpabuf_free(p2p->wfd_ie_assoc_req);
4200 p2p->wfd_ie_assoc_req = ie;
4201 return 0;
4202}
4203
4204
4205int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4206{
4207 wpabuf_free(p2p->wfd_ie_invitation);
4208 p2p->wfd_ie_invitation = ie;
4209 return 0;
4210}
4211
4212
4213int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4214{
4215 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4216 p2p->wfd_ie_prov_disc_req = ie;
4217 return 0;
4218}
4219
4220
4221int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4222{
4223 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4224 p2p->wfd_ie_prov_disc_resp = ie;
4225 return 0;
4226}
4227
4228
4229int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4230{
4231 wpabuf_free(p2p->wfd_ie_go_neg);
4232 p2p->wfd_ie_go_neg = ie;
4233 return 0;
4234}
4235
4236
4237int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4238{
4239 wpabuf_free(p2p->wfd_dev_info);
4240 if (elem) {
4241 p2p->wfd_dev_info = wpabuf_dup(elem);
4242 if (p2p->wfd_dev_info == NULL)
4243 return -1;
4244 } else
4245 p2p->wfd_dev_info = NULL;
4246
4247 return 0;
4248}
4249
4250
4251int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4252{
4253 wpabuf_free(p2p->wfd_assoc_bssid);
4254 if (elem) {
4255 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4256 if (p2p->wfd_assoc_bssid == NULL)
4257 return -1;
4258 } else
4259 p2p->wfd_assoc_bssid = NULL;
4260
4261 return 0;
4262}
4263
4264
4265int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4266 const struct wpabuf *elem)
4267{
4268 wpabuf_free(p2p->wfd_coupled_sink_info);
4269 if (elem) {
4270 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4271 if (p2p->wfd_coupled_sink_info == NULL)
4272 return -1;
4273 } else
4274 p2p->wfd_coupled_sink_info = NULL;
4275
4276 return 0;
4277}
4278
4279#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4280
4281
4282int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4283 int max_disc_tu)
4284{
4285 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4286 return -1;
4287
4288 p2p->min_disc_int = min_disc_int;
4289 p2p->max_disc_int = max_disc_int;
4290 p2p->max_disc_tu = max_disc_tu;
4291 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set discoverable interval: "
4292 "min=%d max=%d max_tu=%d", min_disc_int, max_disc_int,
4293 max_disc_tu);
4294
4295 return 0;
4296}
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