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Add macsec_qca driver wrapper
[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"
15#include "wps/wps_i.h"
16#include "p2p_i.h"
17#include "p2p.h"
18
19
20static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
21static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
22static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
23 const u8 *sa, const u8 *data, size_t len,
24 int rx_freq);
25static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
26 const u8 *sa, const u8 *data,
27 size_t len);
28static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 29static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 30
31
40c03fd4
JM		 32/*
33 * p2p_scan recovery timeout
34 *
35 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
36 * timeout for this to avoid hitting P2P timeout unnecessarily.
37 */
38#define P2P_SCAN_TIMEOUT 35
39
b22128ef
JM		 40/**
41 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
42 * entries will be removed
43 */
dcdd3838
DS		 44#ifndef P2P_PEER_EXPIRATION_AGE
45#define P2P_PEER_EXPIRATION_AGE 60
46#endif /* P2P_PEER_EXPIRATION_AGE */
b22128ef
JM		 47
48#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
49
50static void p2p_expire_peers(struct p2p_data *p2p)
51{
52 struct p2p_device *dev, *n;
acb69cec 53 struct os_reltime now;
1d277f02 54 size_t i;
b22128ef 55
acb69cec 56 os_get_reltime(&now);
b22128ef
JM		 57 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
58 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
59 continue;
b1aebbc4 60
a691d99f
JJ		 61 if (dev == p2p->go_neg_peer) {
62 /*
63 * GO Negotiation is in progress with the peer, so
64 * don't expire the peer entry until GO Negotiation
65 * fails or times out.
66 */
67 continue;
68 }
69
b1aebbc4
JM		 70 if (p2p->cfg->go_connected &&
71 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
72 dev->info.p2p_device_addr)) {
73 /*
74 * We are connected as a client to a group in which the
75 * peer is the GO, so do not expire the peer entry.
76 */
acb69cec 77 os_get_reltime(&dev->last_seen);
b1aebbc4
JM		 78 continue;
79 }
80
1d277f02
JM		 81 for (i = 0; i < p2p->num_groups; i++) {
82 if (p2p_group_is_client_connected(
83 p2p->groups[i], dev->info.p2p_device_addr))
84 break;
85 }
86 if (i < p2p->num_groups) {
87 /*
88 * The peer is connected as a client in a group where
89 * we are the GO, so do not expire the peer entry.
90 */
acb69cec 91 os_get_reltime(&dev->last_seen);
1d277f02
JM		 92 continue;
93 }
94
ed496f13
JM		 95 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
96 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 97 dl_list_del(&dev->list);
98 p2p_device_free(p2p, dev);
99 }
100}
101
102
103static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
104{
105 struct p2p_data *p2p = eloop_ctx;
106 p2p_expire_peers(p2p);
107 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
108 p2p_expiration_timeout, p2p, NULL);
109}
110
111
112static const char * p2p_state_txt(int state)
113{
114 switch (state) {
115 case P2P_IDLE:
116 return "IDLE";
117 case P2P_SEARCH:
118 return "SEARCH";
119 case P2P_CONNECT:
120 return "CONNECT";
121 case P2P_CONNECT_LISTEN:
122 return "CONNECT_LISTEN";
123 case P2P_GO_NEG:
124 return "GO_NEG";
125 case P2P_LISTEN_ONLY:
126 return "LISTEN_ONLY";
127 case P2P_WAIT_PEER_CONNECT:
128 return "WAIT_PEER_CONNECT";
129 case P2P_WAIT_PEER_IDLE:
130 return "WAIT_PEER_IDLE";
131 case P2P_SD_DURING_FIND:
132 return "SD_DURING_FIND";
133 case P2P_PROVISIONING:
134 return "PROVISIONING";
135 case P2P_PD_DURING_FIND:
136 return "PD_DURING_FIND";
137 case P2P_INVITE:
138 return "INVITE";
139 case P2P_INVITE_LISTEN:
140 return "INVITE_LISTEN";
141 default:
142 return "?";
143 }
144}
145
146
4c559019
JM		 147const char * p2p_get_state_txt(struct p2p_data *p2p)
148{
149 return p2p_state_txt(p2p->state);
150}
151
152
ec437d9e
JJ		 153u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
154{
155 struct p2p_device *dev = NULL;
156
157 if (!addr || !p2p)
158 return 0;
159
160 dev = p2p_get_device(p2p, addr);
161 if (dev)
162 return dev->wps_prov_info;
163 else
164 return 0;
165}
166
167
10531d21 168void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 169{
170 struct p2p_device *dev = NULL;
171
10531d21 172 if (!addr || !p2p)
ec437d9e
JJ		 173 return;
174
10531d21 175 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 176 if (dev)
177 dev->wps_prov_info = 0;
178}
179
180
b22128ef
JM		 181void p2p_set_state(struct p2p_data *p2p, int new_state)
182{
ed496f13 183 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 184 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
185 p2p->state = new_state;
186}
187
188
189void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
190{
ed496f13 191 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 192 p2p_state_txt(p2p->state), sec, usec);
193 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
194 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
195}
196
197
198void p2p_clear_timeout(struct p2p_data *p2p)
199{
ed496f13 200 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 201 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
202}
203
204
205void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
206 int status)
207{
208 struct p2p_go_neg_results res;
209 p2p_clear_timeout(p2p);
210 p2p_set_state(p2p, P2P_IDLE);
fb8984fd
JM		 211 if (p2p->go_neg_peer) {
212 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
eb916eb8 213 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
ab9e3442 214 p2p->go_neg_peer->oob_pw_id = 0;
fb8984fd 215 }
b22128ef
JM		 216 p2p->go_neg_peer = NULL;
217
218 os_memset(&res, 0, sizeof(res));
219 res.status = status;
220 if (peer) {
0e0e1e56
NS		 221 wpabuf_free(peer->go_neg_conf);
222 peer->go_neg_conf = NULL;
c5db8e51 223 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 224 ETH_ALEN);
225 os_memcpy(res.peer_interface_addr, peer->intended_addr,
226 ETH_ALEN);
227 }
228 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
229}
230
231
96beff11 232static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 233{
234 unsigned int r, tu;
235 int freq;
236 struct wpabuf *ies;
237
ed496f13 238 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 239 p2p_state_txt(p2p->state));
240
9ccd9165 241 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 242 if (freq < 0) {
ed496f13 243 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 244 return;
245 }
246
247 os_get_random((u8 *) &r, sizeof(r));
248 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
249 p2p->min_disc_int) * 100;
96beff11
JM		 250 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
251 tu = p2p->max_disc_tu;
252 if (!dev_disc && tu < 100)
253 tu = 100; /* Need to wait in non-device discovery use cases */
254 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
255 tu = p2p->cfg->max_listen * 1000 / 1024;
256
257 if (tu == 0) {
ed496f13 258 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 259 p2p_set_timeout(p2p, 0, 0);
260 return;
261 }
b22128ef
JM		 262
263 p2p->pending_listen_freq = freq;
264 p2p->pending_listen_sec = 0;
265 p2p->pending_listen_usec = 1024 * tu;
266
267 ies = p2p_build_probe_resp_ies(p2p);
268 if (ies == NULL)
269 return;
270
271 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
272 ies) < 0) {
ed496f13 273 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 274 p2p->pending_listen_freq = 0;
275 }
276 wpabuf_free(ies);
277}
278
279
280int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
281{
282 int freq;
283 struct wpabuf *ies;
284
ed496f13 285 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 286
9ccd9165 287 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 288 if (freq < 0) {
ed496f13 289 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 290 return -1;
291 }
292
293 p2p->pending_listen_freq = freq;
294 p2p->pending_listen_sec = timeout / 1000;
295 p2p->pending_listen_usec = (timeout % 1000) * 1000;
296
297 if (p2p->p2p_scan_running) {
5b9cecaf 298 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 299 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 300 return 0;
301 }
ed496f13 302 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 303 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
304 return 0;
305 }
306
307 ies = p2p_build_probe_resp_ies(p2p);
308 if (ies == NULL)
309 return -1;
310
311 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 312 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 313 p2p->pending_listen_freq = 0;
314 wpabuf_free(ies);
315 return -1;
316 }
317 wpabuf_free(ies);
318
319 p2p_set_state(p2p, P2P_LISTEN_ONLY);
320
321 return 0;
322}
323
324
325static void p2p_device_clear_reported(struct p2p_data *p2p)
326{
327 struct p2p_device *dev;
328 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
329 dev->flags &= ~P2P_DEV_REPORTED;
330}
331
332
333/**
334 * p2p_get_device - Fetch a peer entry
335 * @p2p: P2P module context from p2p_init()
336 * @addr: P2P Device Address of the peer
337 * Returns: Pointer to the device entry or %NULL if not found
338 */
339struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
340{
341 struct p2p_device *dev;
342 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 343 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 344 return dev;
345 }
346 return NULL;
347}
348
349
350/**
351 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
352 * @p2p: P2P module context from p2p_init()
353 * @addr: P2P Interface Address of the peer
354 * Returns: Pointer to the device entry or %NULL if not found
355 */
356struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
357 const u8 *addr)
358{
359 struct p2p_device *dev;
360 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
361 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
362 return dev;
363 }
364 return NULL;
365}
366
367
368/**
369 * p2p_create_device - Create a peer entry
370 * @p2p: P2P module context from p2p_init()
371 * @addr: P2P Device Address of the peer
372 * Returns: Pointer to the device entry or %NULL on failure
373 *
374 * If there is already an entry for the peer, it will be returned instead of
375 * creating a new one.
376 */
377static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
378 const u8 *addr)
379{
380 struct p2p_device *dev, *oldest = NULL;
381 size_t count = 0;
382
383 dev = p2p_get_device(p2p, addr);
384 if (dev)
385 return dev;
386
387 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
388 count++;
389 if (oldest == NULL ||
acb69cec 390 os_reltime_before(&dev->last_seen, &oldest->last_seen))
b22128ef
JM		 391 oldest = dev;
392 }
393 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 394 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 395 dl_list_del(&oldest->list);
396 p2p_device_free(p2p, oldest);
397 }
398
399 dev = os_zalloc(sizeof(*dev));
400 if (dev == NULL)
401 return NULL;
402 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 403 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 404
405 return dev;
406}
407
408
409static void p2p_copy_client_info(struct p2p_device *dev,
410 struct p2p_client_info *cli)
411{
c5db8e51
KRK		 412 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
413 dev->info.device_name[cli->dev_name_len] = '\0';
414 dev->info.dev_capab = cli->dev_capab;
415 dev->info.config_methods = cli->config_methods;
416 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 417 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
418 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
419 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 420}
421
422
423static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
424 const u8 *go_interface_addr, int freq,
425 const u8 *gi, size_t gi_len)
426{
427 struct p2p_group_info info;
428 size_t c;
429 struct p2p_device *dev;
430
431 if (gi == NULL)
432 return 0;
433
434 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
435 return -1;
436
437 /*
438 * Clear old data for this group; if the devices are still in the
439 * group, the information will be restored in the loop following this.
440 */
441 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 442 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 443 ETH_ALEN) == 0) {
444 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
445 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
446 }
447 }
448
449 for (c = 0; c < info.num_clients; c++) {
450 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 451 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
452 ETH_ALEN) == 0)
453 continue; /* ignore our own entry */
b22128ef
JM		 454 dev = p2p_get_device(p2p, cli->p2p_device_addr);
455 if (dev) {
b22128ef 456 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 457 P2P_DEV_PROBE_REQ_ONLY)) {
458 /*
459 * Update information since we have not
460 * received this directly from the client.
461 */
b22128ef 462 p2p_copy_client_info(dev, cli);
f33bc035
JM		 463 } else {
464 /*
465 * Need to update P2P Client Discoverability
466 * flag since it is valid only in P2P Group
467 * Info attribute.
468 */
469 dev->info.dev_capab &=
470 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
471 dev->info.dev_capab |=
472 cli->dev_capab &
473 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
474 }
b22128ef
JM		 475 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
476 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
477 }
478 } else {
479 dev = p2p_create_device(p2p, cli->p2p_device_addr);
480 if (dev == NULL)
481 continue;
482 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
483 p2p_copy_client_info(dev, cli);
484 dev->oper_freq = freq;
c5db8e51
KRK		 485 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
486 dev->info.p2p_device_addr,
8fd7dc1b
JB		 487 &dev->info, 1);
488 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 489 }
490
491 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
492 ETH_ALEN);
acb69cec 493 os_get_reltime(&dev->last_seen);
b22128ef
JM		 494 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
495 os_memcpy(dev->member_in_go_iface, go_interface_addr,
496 ETH_ALEN);
497 }
498
499 return 0;
500}
501
502
ed496f13
JM		 503static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
504 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 505{
506 os_memcpy(dev->info.device_name, msg->device_name,
507 sizeof(dev->info.device_name));
508
509 if (msg->manufacturer &&
510 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
511 os_memset(dev->info.manufacturer, 0,
512 sizeof(dev->info.manufacturer));
513 os_memcpy(dev->info.manufacturer, msg->manufacturer,
514 msg->manufacturer_len);
515 }
516
517 if (msg->model_name &&
518 msg->model_name_len < sizeof(dev->info.model_name)) {
519 os_memset(dev->info.model_name, 0,
520 sizeof(dev->info.model_name));
521 os_memcpy(dev->info.model_name, msg->model_name,
522 msg->model_name_len);
523 }
524
525 if (msg->model_number &&
526 msg->model_number_len < sizeof(dev->info.model_number)) {
527 os_memset(dev->info.model_number, 0,
528 sizeof(dev->info.model_number));
529 os_memcpy(dev->info.model_number, msg->model_number,
530 msg->model_number_len);
531 }
532
533 if (msg->serial_number &&
534 msg->serial_number_len < sizeof(dev->info.serial_number)) {
535 os_memset(dev->info.serial_number, 0,
536 sizeof(dev->info.serial_number));
537 os_memcpy(dev->info.serial_number, msg->serial_number,
538 msg->serial_number_len);
539 }
540
541 if (msg->pri_dev_type)
542 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
543 sizeof(dev->info.pri_dev_type));
544 else if (msg->wps_pri_dev_type)
545 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
546 sizeof(dev->info.pri_dev_type));
547
548 if (msg->wps_sec_dev_type_list) {
549 os_memcpy(dev->info.wps_sec_dev_type_list,
550 msg->wps_sec_dev_type_list,
551 msg->wps_sec_dev_type_list_len);
552 dev->info.wps_sec_dev_type_list_len =
553 msg->wps_sec_dev_type_list_len;
554 }
555
556 if (msg->capability) {
f33bc035
JM		 557 /*
558 * P2P Client Discoverability bit is reserved in all frames
559 * that use this function, so do not change its value here.
560 */
561 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
562 dev->info.dev_capab |= msg->capability[0] &
563 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 564 dev->info.group_capab = msg->capability[1];
565 }
566
567 if (msg->ext_listen_timing) {
568 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
569 dev->ext_listen_interval =
570 WPA_GET_LE16(msg->ext_listen_timing + 2);
571 }
572
573 if (!probe_req) {
954ee628
JM		 574 u16 new_config_methods;
575 new_config_methods = msg->config_methods ?
b67d0d9e 576 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 577 if (new_config_methods &&
578 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 579 p2p_dbg(p2p, "Update peer " MACSTR
580 " config_methods 0x%x -> 0x%x",
581 MAC2STR(dev->info.p2p_device_addr),
582 dev->info.config_methods,
583 new_config_methods);
954ee628
JM		 584 dev->info.config_methods = new_config_methods;
585 }
b67d0d9e
JM		 586 }
587}
588
589
b22128ef 590/**
c98b83f2 591 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 592 * @p2p: P2P module context from p2p_init()
593 * @addr: Source address of Beacon or Probe Response frame (may be either
594 * P2P Device Address or P2P Interface Address)
595 * @level: Signal level (signal strength of the received frame from the peer)
596 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 597 * @rx_time: Time when the result was received
b22128ef
JM		 598 * @ies: IEs from the Beacon or Probe Response frame
599 * @ies_len: Length of ies buffer in octets
c98b83f2 600 * @scan_res: Whether this was based on scan results
b22128ef
JM		 601 * Returns: 0 on success, -1 on failure
602 *
603 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 604 * to the peer table. This function can also be used with some other frames
605 * like Provision Discovery Request that contains P2P Capability and P2P Device
606 * Info attributes.
b22128ef 607 */
3dfd0484 608int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
acb69cec 609 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 610 size_t ies_len, int scan_res)
b22128ef
JM		 611{
612 struct p2p_device *dev;
613 struct p2p_message msg;
614 const u8 *p2p_dev_addr;
6f2c0607 615 int i;
acb69cec 616 struct os_reltime time_now;
b22128ef
JM		 617
618 os_memset(&msg, 0, sizeof(msg));
619 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 620 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 621 p2p_parse_free(&msg);
622 return -1;
623 }
624
625 if (msg.p2p_device_addr)
626 p2p_dev_addr = msg.p2p_device_addr;
627 else if (msg.device_id)
628 p2p_dev_addr = msg.device_id;
629 else {
ed496f13 630 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 631 p2p_parse_free(&msg);
632 return -1;
633 }
634
80c9582a
JM		 635 if (!is_zero_ether_addr(p2p->peer_filter) &&
636 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 637 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
638 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 639 p2p_parse_free(&msg);
80c9582a
JM		 640 return 0;
641 }
642
b22128ef
JM		 643 dev = p2p_create_device(p2p, p2p_dev_addr);
644 if (dev == NULL) {
645 p2p_parse_free(&msg);
646 return -1;
647 }
3dfd0484 648
c5f10e80 649 if (rx_time == NULL) {
acb69cec 650 os_get_reltime(&time_now);
c5f10e80
JM		 651 rx_time = &time_now;
652 }
3dfd0484
YD		 653
654 /*
655 * Update the device entry only if the new peer
656 * entry is newer than the one previously stored.
657 */
c5f10e80 658 if (dev->last_seen.sec > 0 &&
acb69cec 659 os_reltime_before(rx_time, &dev->last_seen)) {
ed496f13 660 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
c5f10e80
JM		 661 (unsigned int) rx_time->sec,
662 (unsigned int) rx_time->usec,
663 (unsigned int) dev->last_seen.sec,
664 (unsigned int) dev->last_seen.usec);
f96c1d76 665 p2p_parse_free(&msg);
3dfd0484 666 return -1;
f96c1d76 667 }
3dfd0484 668
acb69cec 669 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
3dfd0484 670
b22128ef
JM		 671 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
672
673 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
674 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
675 if (msg.ssid &&
676 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
677 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
678 != 0)) {
679 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
680 dev->oper_ssid_len = msg.ssid[1];
681 }
682
683 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
684 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
685 int ds_freq;
686 if (*msg.ds_params == 14)
687 ds_freq = 2484;
688 else
689 ds_freq = 2407 + *msg.ds_params * 5;
690 if (freq != ds_freq) {
ed496f13 691 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 692 freq, ds_freq);
693 freq = ds_freq;
694 }
695 }
696
c98b83f2 697 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 698 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
699 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 700 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
701 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 702 }
c98b83f2
JM		 703 if (scan_res) {
704 dev->listen_freq = freq;
705 if (msg.group_info)
706 dev->oper_freq = freq;
707 }
6402fc43 708 dev->info.level = level;
b22128ef 709
ed496f13 710 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 711
10c5d2a5 712 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 713 wpabuf_free(dev->info.wps_vendor_ext[i]);
714 dev->info.wps_vendor_ext[i] = NULL;
715 }
716
10c5d2a5 717 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 718 if (msg.wps_vendor_ext[i] == NULL)
719 break;
720 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
721 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
722 if (dev->info.wps_vendor_ext[i] == NULL)
723 break;
724 }
725
9675ce35
JM		 726 if (msg.wfd_subelems) {
727 wpabuf_free(dev->info.wfd_subelems);
728 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
729 }
730
c98b83f2
JM		 731 if (scan_res) {
732 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
733 msg.group_info, msg.group_info_len);
734 }
b22128ef
JM		 735
736 p2p_parse_free(&msg);
737
b22128ef
JM		 738 if (dev->flags & P2P_DEV_REPORTED)
739 return 0;
740
ed496f13
JM		 741 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
742 freq, (unsigned int) rx_time->sec,
c5f10e80 743 (unsigned int) rx_time->usec);
b22128ef 744 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 745 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 746 return 0;
747 }
8fd7dc1b 748
8b2b2a70
JM		 749 if (dev->info.config_methods == 0 &&
750 (freq == 2412 || freq == 2437 || freq == 2462)) {
751 /*
752 * If we have only seen a Beacon frame from a GO, we do not yet
753 * know what WPS config methods it supports. Since some
754 * applications use config_methods value from P2P-DEVICE-FOUND
755 * events, postpone reporting this peer until we've fully
756 * discovered its capabilities.
757 *
758 * At least for now, do this only if the peer was detected on
759 * one of the social channels since that peer can be easily be
760 * found again and there are no limitations of having to use
761 * passive scan on this channels, so this can be done through
762 * Probe Response frame that includes the config_methods
763 * information.
764 */
ed496f13
JM		 765 p2p_dbg(p2p, "Do not report peer " MACSTR
766 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 767 return 0;
768 }
769
8fd7dc1b
JB		 770 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
771 !(dev->flags & P2P_DEV_REPORTED_ONCE));
772 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 773
774 return 0;
775}
776
777
778static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
779{
6f2c0607
JMB		 780 int i;
781
5cfda25e
JJ		 782 if (p2p->go_neg_peer == dev) {
783 /*
784 * If GO Negotiation is in progress, report that it has failed.
785 */
786 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 787 p2p->go_neg_peer = NULL;
5cfda25e 788 }
b22128ef
JM		 789 if (p2p->invite_peer == dev)
790 p2p->invite_peer = NULL;
791 if (p2p->sd_peer == dev)
792 p2p->sd_peer = NULL;
793 if (p2p->pending_client_disc_go == dev)
794 p2p->pending_client_disc_go = NULL;
795
f5fc6032
AC		 796 /* dev_lost() device, but only if it was previously dev_found() */
797 if (dev->flags & P2P_DEV_REPORTED_ONCE)
798 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
799 dev->info.p2p_device_addr);
56eeb8f2 800
10c5d2a5 801 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 802 wpabuf_free(dev->info.wps_vendor_ext[i]);
803 dev->info.wps_vendor_ext[i] = NULL;
804 }
805
9675ce35 806 wpabuf_free(dev->info.wfd_subelems);
0e0e1e56 807 wpabuf_free(dev->go_neg_conf);
9675ce35 808
b22128ef
JM		 809 os_free(dev);
810}
811
812
813static int p2p_get_next_prog_freq(struct p2p_data *p2p)
814{
815 struct p2p_channels *c;
816 struct p2p_reg_class *cla;
817 size_t cl, ch;
818 int found = 0;
819 u8 reg_class;
820 u8 channel;
821 int freq;
822
823 c = &p2p->cfg->channels;
824 for (cl = 0; cl < c->reg_classes; cl++) {
825 cla = &c->reg_class[cl];
826 if (cla->reg_class != p2p->last_prog_scan_class)
827 continue;
828 for (ch = 0; ch < cla->channels; ch++) {
829 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
830 found = 1;
831 break;
832 }
833 }
834 if (found)
835 break;
836 }
837
838 if (!found) {
839 /* Start from beginning */
840 reg_class = c->reg_class[0].reg_class;
841 channel = c->reg_class[0].channel[0];
842 } else {
843 /* Pick the next channel */
844 ch++;
845 if (ch == cla->channels) {
846 cl++;
847 if (cl == c->reg_classes)
848 cl = 0;
849 ch = 0;
850 }
851 reg_class = c->reg_class[cl].reg_class;
852 channel = c->reg_class[cl].channel[ch];
853 }
854
9ccd9165 855 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 856 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 857 reg_class, channel, freq);
858 p2p->last_prog_scan_class = reg_class;
859 p2p->last_prog_scan_chan = channel;
860
861 if (freq == 2412 || freq == 2437 || freq == 2462)
862 return 0; /* No need to add social channels */
863 return freq;
864}
865
866
867static void p2p_search(struct p2p_data *p2p)
868{
869 int freq = 0;
870 enum p2p_scan_type type;
360182ed 871 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 872 int res;
b22128ef
JM		 873
874 if (p2p->drv_in_listen) {
ed496f13 875 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 876 return;
877 }
878 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
879
e6ecfc4f
JB		 880 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
881 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef 882 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 883 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 884 } else {
885 type = P2P_SCAN_SOCIAL;
ed496f13 886 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 887 }
888
99fcd404
JM		 889 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
890 p2p->num_req_dev_types, p2p->req_dev_types,
891 p2p->find_dev_id, pw_id);
892 if (res < 0) {
ed496f13 893 p2p_dbg(p2p, "Scan request failed");
b22128ef 894 p2p_continue_find(p2p);
40c03fd4 895 } else {
ed496f13 896 p2p_dbg(p2p, "Running p2p_scan");
40c03fd4
JM		 897 p2p->p2p_scan_running = 1;
898 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
899 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
900 p2p, NULL);
b22128ef
JM		 901 }
902}
903
904
905static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
906{
907 struct p2p_data *p2p = eloop_ctx;
ed496f13 908 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 909 p2p_stop_find(p2p);
910}
911
912
913static int p2p_run_after_scan(struct p2p_data *p2p)
914{
915 struct p2p_device *dev;
916 enum p2p_after_scan op;
917
3f9285ff 918 if (p2p->after_scan_tx) {
63a965c3 919 p2p->after_scan_tx_in_progress = 1;
ed496f13 920 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
46eeedac
JM		 921 p2p->cfg->send_action(p2p->cfg->cb_ctx,
922 p2p->after_scan_tx->freq,
923 p2p->after_scan_tx->dst,
924 p2p->after_scan_tx->src,
925 p2p->after_scan_tx->bssid,
926 (u8 *) (p2p->after_scan_tx + 1),
927 p2p->after_scan_tx->len,
928 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 929 os_free(p2p->after_scan_tx);
930 p2p->after_scan_tx = NULL;
931 return 1;
932 }
933
b22128ef
JM		 934 op = p2p->start_after_scan;
935 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
936 switch (op) {
937 case P2P_AFTER_SCAN_NOTHING:
938 break;
939 case P2P_AFTER_SCAN_LISTEN:
ed496f13 940 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 941 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
942 p2p->pending_listen_usec / 1000);
943 return 1;
944 case P2P_AFTER_SCAN_CONNECT:
ed496f13 945 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 946 MAC2STR(p2p->after_scan_peer));
947 dev = p2p_get_device(p2p, p2p->after_scan_peer);
948 if (dev == NULL) {
ed496f13 949 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 950 break;
951 }
952 p2p_connect_send(p2p, dev);
953 return 1;
954 }
955
956 return 0;
957}
958
959
b22128ef
JM		 960static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
961{
962 struct p2p_data *p2p = eloop_ctx;
963 int running;
ed496f13 964 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 965 running = p2p->p2p_scan_running;
966 /* Make sure we recover from missed scan results callback */
967 p2p->p2p_scan_running = 0;
968
969 if (running)
970 p2p_run_after_scan(p2p);
971}
972
973
046ef4aa
JMB		 974static void p2p_free_req_dev_types(struct p2p_data *p2p)
975{
976 p2p->num_req_dev_types = 0;
977 os_free(p2p->req_dev_types);
978 p2p->req_dev_types = NULL;
979}
980
981
b22128ef 982int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 983 enum p2p_discovery_type type,
6d92fa6e 984 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 985 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 986{
987 int res;
988
ed496f13 989 p2p_dbg(p2p, "Starting find (type=%d)", type);
acb69cec 990 os_get_reltime(&p2p->find_start);
b22128ef 991 if (p2p->p2p_scan_running) {
ed496f13 992 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 993 }
046ef4aa
JMB		 994
995 p2p_free_req_dev_types(p2p);
996 if (req_dev_types && num_req_dev_types) {
997 p2p->req_dev_types = os_malloc(num_req_dev_types *
998 WPS_DEV_TYPE_LEN);
999 if (p2p->req_dev_types == NULL)
1000 return -1;
1001 os_memcpy(p2p->req_dev_types, req_dev_types,
1002 num_req_dev_types * WPS_DEV_TYPE_LEN);
1003 p2p->num_req_dev_types = num_req_dev_types;
1004 }
1005
6d92fa6e
JM		 1006 if (dev_id) {
1007 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1008 p2p->find_dev_id = p2p->find_dev_id_buf;
1009 } else
1010 p2p->find_dev_id = NULL;
1011
b22128ef
JM		 1012 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1013 p2p_clear_timeout(p2p);
1014 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1015 p2p->find_type = type;
1016 p2p_device_clear_reported(p2p);
1017 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1018 p2p->search_delay = search_delay;
1019 p2p->in_search_delay = 0;
b22128ef 1020 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1021 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1022 if (timeout)
1023 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1024 p2p, NULL);
1025 switch (type) {
1026 case P2P_FIND_START_WITH_FULL:
1027 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1028 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1029 p2p->num_req_dev_types,
360182ed
JM		 1030 p2p->req_dev_types, dev_id,
1031 DEV_PW_DEFAULT);
b22128ef
JM		 1032 break;
1033 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1034 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1035 p2p->num_req_dev_types,
360182ed
JM		 1036 p2p->req_dev_types, dev_id,
1037 DEV_PW_DEFAULT);
b22128ef
JM		 1038 break;
1039 default:
1040 return -1;
1041 }
1042
1043 if (res == 0) {
ed496f13 1044 p2p_dbg(p2p, "Running p2p_scan");
b22128ef
JM		 1045 p2p->p2p_scan_running = 1;
1046 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1047 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1048 p2p, NULL);
1b5d4714
JM		 1049 } else if (p2p->p2p_scan_running) {
1050 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1051 /* wait for the previous p2p_scan to complete */
825fb6b2 1052 res = 0; /* do not report failure */
b22128ef 1053 } else {
ed496f13 1054 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1055 p2p_set_state(p2p, P2P_IDLE);
1056 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1057 }
1058
1059 return res;
1060}
1061
1062
0b8889d8 1063void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1064{
ed496f13 1065 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1066 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1067 p2p_clear_timeout(p2p);
1b5d4714 1068 if (p2p->state == P2P_SEARCH)
710ae9ac 1069 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
b22128ef 1070 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1071 p2p_free_req_dev_types(p2p);
b22128ef 1072 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1073 if (p2p->go_neg_peer)
fb8984fd 1074 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1075 p2p->go_neg_peer = NULL;
1076 p2p->sd_peer = NULL;
1077 p2p->invite_peer = NULL;
1a9c618d
JM		 1078 p2p_stop_listen_for_freq(p2p, freq);
1079}
1080
1081
1082void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1083{
0b8889d8 1084 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1085 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1086 return;
1087 }
1a9c618d
JM		 1088 if (p2p->in_listen) {
1089 p2p->in_listen = 0;
1090 p2p_clear_timeout(p2p);
1091 }
54b8f994
JM		 1092 if (p2p->drv_in_listen) {
1093 /*
1094 * The driver may not deliver callback to p2p_listen_end()
1095 * when the operation gets canceled, so clear the internal
1096 * variable that is tracking driver state.
1097 */
ed496f13 1098 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1099 p2p->drv_in_listen = 0;
1100 }
b22128ef
JM		 1101 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1102}
1103
1104
0b5fb86a
SADR		 1105void p2p_stop_listen(struct p2p_data *p2p)
1106{
1107 if (p2p->state != P2P_LISTEN_ONLY) {
1108 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1109 return;
1110 }
1111
1112 p2p_stop_listen_for_freq(p2p, 0);
1113 p2p_set_state(p2p, P2P_IDLE);
1114}
1115
1116
0b8889d8
JM		 1117void p2p_stop_find(struct p2p_data *p2p)
1118{
1119 p2p_stop_find_for_freq(p2p, 0);
1120}
1121
1122
e28c226d
JM		 1123static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1124 unsigned int force_freq,
51e9f228 1125 unsigned int pref_freq, int go)
e28c226d
JM		 1126{
1127 u8 op_class, op_channel;
1128 unsigned int freq = force_freq ? force_freq : pref_freq;
1129
51e9f228
JM		 1130 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1131 force_freq, pref_freq, go);
9ccd9165 1132 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1133 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1134 return -1;
1135 }
1136
51e9f228
JM		 1137 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1138 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1139 op_channel))) {
ed496f13
JM		 1140 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1141 freq, op_class, op_channel);
e28c226d
JM		 1142 return -1;
1143 }
1144
1145 p2p->op_reg_class = op_class;
1146 p2p->op_channel = op_channel;
1147
1148 if (force_freq) {
1149 p2p->channels.reg_classes = 1;
1150 p2p->channels.reg_class[0].channels = 1;
1151 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1152 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1153 } else {
1154 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1155 sizeof(struct p2p_channels));
1156 }
1157
1158 return 0;
1159}
1160
1161
1162static void p2p_prepare_channel_best(struct p2p_data *p2p)
1163{
1164 u8 op_class, op_channel;
00043740
JM		 1165 const int op_classes_5ghz[] = { 124, 115, 0 };
1166 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
384bdd02 1167 const int op_classes_vht[] = { 128, 0 };
e28c226d 1168
99d7c762
JM		 1169 p2p_dbg(p2p, "Prepare channel best");
1170
e28c226d
JM		 1171 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1172 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1173 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1174 == 0) {
ed496f13 1175 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1176 p2p->op_reg_class = op_class;
1177 p2p->op_channel = op_channel;
1178 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1179 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1180 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1181 == 0) {
ed496f13 1182 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1183 p2p->op_reg_class = op_class;
1184 p2p->op_channel = op_channel;
1185 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1186 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1187 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1188 &op_channel) == 0) {
ed496f13 1189 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1190 p2p->op_reg_class = op_class;
1191 p2p->op_channel = op_channel;
6701fdc3
JM		 1192 } else if (p2p->cfg->num_pref_chan > 0 &&
1193 p2p_channels_includes(&p2p->cfg->channels,
1194 p2p->cfg->pref_chan[0].op_class,
1195 p2p->cfg->pref_chan[0].chan)) {
1196 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1197 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1198 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
384bdd02
JM		 1199 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1200 &p2p->op_reg_class, &p2p->op_channel) ==
1201 0) {
1202 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1203 p2p->op_reg_class, p2p->op_channel);
a30d50b3
JM		 1204 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1205 &p2p->op_reg_class, &p2p->op_channel) ==
1206 0) {
1207 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1208 p2p->op_reg_class, p2p->op_channel);
f2407107
JM		 1209 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1210 &p2p->op_reg_class, &p2p->op_channel) ==
1211 0) {
1212 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1213 p2p->op_reg_class, p2p->op_channel);
94b84bc7
AH		 1214 } else if (p2p_channels_includes(&p2p->cfg->channels,
1215 p2p->cfg->op_reg_class,
1216 p2p->cfg->op_channel)) {
99d7c762 1217 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1218 p2p->op_reg_class = p2p->cfg->op_reg_class;
1219 p2p->op_channel = p2p->cfg->op_channel;
6ace13a9
JM		 1220 } else if (p2p_channel_random_social(&p2p->cfg->channels,
1221 &p2p->op_reg_class,
1222 &p2p->op_channel) == 0) {
1223 p2p_dbg(p2p, "Select random available social channel %d from 2.4 GHz band as operating channel preference",
1224 p2p->op_channel);
94b84bc7 1225 } else {
6ace13a9
JM		 1226 /* Select any random available channel from the first available
1227 * operating class */
1228 p2p_channel_select(&p2p->cfg->channels, NULL,
1229 &p2p->op_reg_class,
1230 &p2p->op_channel);
1231 p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
1232 p2p->op_channel, p2p->op_reg_class);
e28c226d
JM		 1233 }
1234
1235 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1236 sizeof(struct p2p_channels));
1237}
1238
1239
a5830ede
JM		 1240/**
1241 * p2p_prepare_channel - Select operating channel for GO Negotiation
1242 * @p2p: P2P module context from p2p_init()
1243 * @dev: Selected peer device
1244 * @force_freq: Forced frequency in MHz or 0 if not forced
1245 * @pref_freq: Preferred frequency in MHz or 0 if no preference
51e9f228 1246 * @go: Whether the local end will be forced to be GO
a5830ede
JM		 1247 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1248 *
1249 * This function is used to do initial operating channel selection for GO
1250 * Negotiation prior to having received peer information. The selected channel
1251 * may be further optimized in p2p_reselect_channel() once the peer information
1252 * is available.
1253 */
79879f4a 1254int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
51e9f228 1255 unsigned int force_freq, unsigned int pref_freq, int go)
b22128ef 1256{
51e9f228
JM		 1257 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1258 force_freq, pref_freq, go);
04a3e69d 1259 if (force_freq || pref_freq) {
51e9f228
JM		 1260 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1261 0)
1e19f734 1262 return -1;
b22128ef 1263 } else {
e28c226d 1264 p2p_prepare_channel_best(p2p);
b22128ef 1265 }
51e9f228
JM		 1266 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1267 if (go)
1268 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1269 else if (!force_freq)
1270 p2p_channels_union(&p2p->channels, &p2p->cfg->cli_channels,
1271 &p2p->channels);
1272 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1273
ed496f13 1274 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1275 p2p->op_reg_class, p2p->op_channel,
1276 force_freq ? " (forced)" : "");
1277
92ac756c
JM		 1278 if (force_freq)
1279 dev->flags |= P2P_DEV_FORCE_FREQ;
1280 else
1281 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1282
7861cb08
JM		 1283 return 0;
1284}
1285
1286
acc247b2
JM		 1287static void p2p_set_dev_persistent(struct p2p_device *dev,
1288 int persistent_group)
1289{
1290 switch (persistent_group) {
1291 case 0:
1292 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1293 P2P_DEV_PREFER_PERSISTENT_RECONN);
1294 break;
1295 case 1:
1296 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1297 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1298 break;
1299 case 2:
1300 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1301 P2P_DEV_PREFER_PERSISTENT_RECONN;
1302 break;
1303 }
1304}
1305
1306
7861cb08
JM		 1307int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1308 enum p2p_wps_method wps_method,
1309 int go_intent, const u8 *own_interface_addr,
23c84252 1310 unsigned int force_freq, int persistent_group,
3bc462cb 1311 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1312 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
7861cb08
JM		 1313{
1314 struct p2p_device *dev;
1315
ed496f13 1316 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1317 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442
JM		 1318 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1319 "oob_pw_id=%u",
7861cb08 1320 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1321 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
7861cb08 1322
b22128ef
JM		 1323 dev = p2p_get_device(p2p, peer_addr);
1324 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1325 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1326 MAC2STR(peer_addr));
1327 return -1;
1328 }
1329
51e9f228
JM		 1330 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1331 go_intent == 15) < 0)
92ac756c
JM		 1332 return -1;
1333
b22128ef 1334 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1335 if (!(dev->info.dev_capab &
1336 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1337 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1338 " that is in a group and is not discoverable",
1339 MAC2STR(peer_addr));
1340 return -1;
1341 }
1342 if (dev->oper_freq <= 0) {
ed496f13 1343 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1344 " with incomplete information",
1345 MAC2STR(peer_addr));
1346 return -1;
1347 }
1348
1349 /*
1350 * First, try to connect directly. If the peer does not
1351 * acknowledge frames, assume it is sleeping and use device
1352 * discoverability via the GO at that point.
1353 */
1354 }
1355
23c84252
JM		 1356 p2p->ssid_set = 0;
1357 if (force_ssid) {
1358 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1359 force_ssid, force_ssid_len);
1360 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1361 p2p->ssid_len = force_ssid_len;
1362 p2p->ssid_set = 1;
1363 }
1364
b22128ef
JM		 1365 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1366 dev->flags &= ~P2P_DEV_USER_REJECTED;
1367 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1368 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1369 if (pd_before_go_neg)
1370 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1371 else {
3bc462cb 1372 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1373 /*
003c4580
JM		 1374 * Assign dialog token and tie breaker here to use the same
1375 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1376 */
1377 dev->dialog_token++;
1378 if (dev->dialog_token == 0)
1379 dev->dialog_token = 1;
003c4580
JM		 1380 dev->tie_breaker = p2p->next_tie_breaker;
1381 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1382 }
9dac8c3e 1383 dev->connect_reqs = 0;
b22128ef
JM		 1384 dev->go_neg_req_sent = 0;
1385 dev->go_state = UNKNOWN_GO;
acc247b2 1386 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1387 p2p->go_intent = go_intent;
1388 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1389
1390 if (p2p->state != P2P_IDLE)
1391 p2p_stop_find(p2p);
1392
f44ae207
JM		 1393 if (p2p->after_scan_tx) {
1394 /*
1395 * We need to drop the pending frame to avoid issues with the
1396 * new GO Negotiation, e.g., when the pending frame was from a
1397 * previous attempt at starting a GO Negotiation.
1398 */
ed496f13 1399 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
f44ae207
JM		 1400 os_free(p2p->after_scan_tx);
1401 p2p->after_scan_tx = NULL;
1402 }
1403
b22128ef 1404 dev->wps_method = wps_method;
ab9e3442 1405 dev->oob_pw_id = oob_pw_id;
b22128ef 1406 dev->status = P2P_SC_SUCCESS;
d5b20a73 1407
b22128ef 1408 if (p2p->p2p_scan_running) {
ed496f13 1409 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1410 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1411 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1412 return 0;
1413 }
1414 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1415
1416 return p2p_connect_send(p2p, dev);
1417}
1418
1419
1420int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1421 enum p2p_wps_method wps_method,
1422 int go_intent, const u8 *own_interface_addr,
23c84252 1423 unsigned int force_freq, int persistent_group,
04a3e69d 1424 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1425 unsigned int pref_freq, u16 oob_pw_id)
b22128ef
JM		 1426{
1427 struct p2p_device *dev;
1428
ed496f13 1429 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef 1430 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442 1431 " wps_method=%d persistent_group=%d oob_pw_id=%u",
b22128ef 1432 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1433 wps_method, persistent_group, oob_pw_id);
b22128ef 1434
b22128ef
JM		 1435 dev = p2p_get_device(p2p, peer_addr);
1436 if (dev == NULL) {
ed496f13 1437 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1438 MAC2STR(peer_addr));
1439 return -1;
1440 }
1441
51e9f228
JM		 1442 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1443 15) < 0)
92ac756c
JM		 1444 return -1;
1445
23c84252
JM		 1446 p2p->ssid_set = 0;
1447 if (force_ssid) {
1448 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1449 force_ssid, force_ssid_len);
1450 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1451 p2p->ssid_len = force_ssid_len;
1452 p2p->ssid_set = 1;
1453 }
1454
b22128ef
JM		 1455 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1456 dev->flags &= ~P2P_DEV_USER_REJECTED;
1457 dev->go_neg_req_sent = 0;
1458 dev->go_state = UNKNOWN_GO;
acc247b2 1459 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1460 p2p->go_intent = go_intent;
1461 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1462
1463 dev->wps_method = wps_method;
ab9e3442 1464 dev->oob_pw_id = oob_pw_id;
b22128ef
JM		 1465 dev->status = P2P_SC_SUCCESS;
1466
1467 return 0;
1468}
1469
1470
1471void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1472 struct p2p_device *dev, struct p2p_message *msg)
1473{
acb69cec 1474 os_get_reltime(&dev->last_seen);
b22128ef 1475
ed496f13 1476 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1477
b22128ef
JM		 1478 if (msg->listen_channel) {
1479 int freq;
9ccd9165 1480 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1481 msg->listen_channel[4]);
1482 if (freq < 0) {
ed496f13 1483 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1484 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1485 msg->listen_channel[0],
1486 msg->listen_channel[1],
1487 msg->listen_channel[2],
1488 msg->listen_channel[3],
1489 msg->listen_channel[4]);
1490 } else {
ed496f13
JM		 1491 p2p_dbg(p2p, "Update peer " MACSTR
1492 " Listen channel: %u -> %u MHz",
c5db8e51 1493 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1494 dev->listen_freq, freq);
1495 dev->listen_freq = freq;
1496 }
1497 }
b22128ef 1498
9675ce35
JM		 1499 if (msg->wfd_subelems) {
1500 wpabuf_free(dev->info.wfd_subelems);
1501 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1502 }
1503
b22128ef
JM		 1504 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1505 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1506 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1507 } else {
ed496f13 1508 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1509 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1510 "listen_freq=%d",
c5db8e51
KRK		 1511 MAC2STR(dev->info.p2p_device_addr),
1512 dev->info.dev_capab, dev->info.group_capab,
1513 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1514 }
1515
1516 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1517
1518 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1519 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1520 return;
1521 }
1522
8fd7dc1b
JB		 1523 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1524 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1525 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1526}
1527
1528
1529void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1530{
1531 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1532 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1533 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1534 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1535 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1536}
1537
1538
1539int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1540{
1541 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1542 p2p_random(params->passphrase, 8);
1543 return 0;
1544}
1545
1546
1547void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1548{
1549 struct p2p_go_neg_results res;
1550 int go = peer->go_state == LOCAL_GO;
1551 struct p2p_channels intersection;
1552 int freqs;
1553 size_t i, j;
1554
ed496f13
JM		 1555 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1556 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1557
1558 os_memset(&res, 0, sizeof(res));
1559 res.role_go = go;
c5db8e51 1560 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1561 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1562 res.wps_method = peer->wps_method;
acc247b2
JM		 1563 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1564 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1565 res.persistent_group = 2;
1566 else
1567 res.persistent_group = 1;
1568 }
b22128ef
JM		 1569
1570 if (go) {
1571 /* Setup AP mode for WPS provisioning */
9ccd9165 1572 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1573 p2p->op_channel);
1574 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1575 res.ssid_len = p2p->ssid_len;
1576 p2p_random(res.passphrase, 8);
e9a7ae41 1577 } else {
b22128ef 1578 res.freq = peer->oper_freq;
e9a7ae41
JM		 1579 if (p2p->ssid_len) {
1580 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1581 res.ssid_len = p2p->ssid_len;
1582 }
1583 }
b22128ef 1584
556b30da
JM		 1585 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1586 p2p_channels_dump(p2p, "peer channels", &peer->channels);
b22128ef
JM		 1587 p2p_channels_intersect(&p2p->channels, &peer->channels,
1588 &intersection);
556b30da
JM		 1589 if (go) {
1590 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1591 p2p_channels_dump(p2p, "intersection after no-GO removal",
1592 &intersection);
1593 }
b22128ef
JM		 1594 freqs = 0;
1595 for (i = 0; i < intersection.reg_classes; i++) {
1596 struct p2p_reg_class *c = &intersection.reg_class[i];
1597 if (freqs + 1 == P2P_MAX_CHANNELS)
1598 break;
1599 for (j = 0; j < c->channels; j++) {
1600 int freq;
1601 if (freqs + 1 == P2P_MAX_CHANNELS)
1602 break;
9ccd9165 1603 freq = p2p_channel_to_freq(c->reg_class, c->channel[j]);
b22128ef
JM		 1604 if (freq < 0)
1605 continue;
1606 res.freq_list[freqs++] = freq;
1607 }
1608 }
1609
ae3e3421
JM		 1610 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1611
b22128ef 1612 p2p_clear_timeout(p2p);
4458d915 1613 p2p->ssid_set = 0;
b22128ef
JM		 1614 peer->go_neg_req_sent = 0;
1615 peer->wps_method = WPS_NOT_READY;
ab9e3442 1616 peer->oob_pw_id = 0;
0e0e1e56
NS		 1617 wpabuf_free(peer->go_neg_conf);
1618 peer->go_neg_conf = NULL;
b22128ef
JM		 1619
1620 p2p_set_state(p2p, P2P_PROVISIONING);
1621 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1622}
1623
1624
1625static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1626 const u8 *data, size_t len, int rx_freq)
1627{
ed496f13 1628 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1629 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1630
1631 if (len < 1)
1632 return;
1633
1634 switch (data[0]) {
1635 case P2P_GO_NEG_REQ:
1636 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1637 break;
1638 case P2P_GO_NEG_RESP:
1639 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1640 break;
1641 case P2P_GO_NEG_CONF:
1642 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1643 break;
1644 case P2P_INVITATION_REQ:
1645 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1646 rx_freq);
1647 break;
1648 case P2P_INVITATION_RESP:
dc46fd66 1649 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 1650 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1651 break;
1652 case P2P_PROV_DISC_REQ:
1653 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1654 break;
1655 case P2P_PROV_DISC_RESP:
1656 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1657 break;
1658 case P2P_DEV_DISC_REQ:
1659 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1660 break;
1661 case P2P_DEV_DISC_RESP:
1662 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1663 break;
1664 default:
ed496f13 1665 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1666 data[0]);
1667 break;
1668 }
1669}
1670
1671
19df9b07
JM		 1672static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1673 const u8 *sa, const u8 *bssid, const u8 *data,
1674 size_t len, int freq)
b22128ef
JM		 1675{
1676 if (len < 1)
1677 return;
1678
1679 switch (data[0]) {
1680 case WLAN_PA_VENDOR_SPECIFIC:
1681 data++;
1682 len--;
8bc4372f 1683 if (len < 4)
b22128ef 1684 return;
8bc4372f 1685 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef
JM		 1686 return;
1687
8bc4372f
RJ		 1688 data += 4;
1689 len -= 4;
b22128ef 1690
8bc4372f 1691 p2p_rx_p2p_action(p2p, sa, data, len, freq);
b22128ef
JM		 1692 break;
1693 case WLAN_PA_GAS_INITIAL_REQ:
1694 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1695 break;
1696 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1697 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1698 break;
1699 case WLAN_PA_GAS_COMEBACK_REQ:
1700 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1701 break;
1702 case WLAN_PA_GAS_COMEBACK_RESP:
1703 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1704 break;
1705 }
1706}
1707
1708
1709void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1710 const u8 *bssid, u8 category,
1711 const u8 *data, size_t len, int freq)
1712{
1713 if (category == WLAN_ACTION_PUBLIC) {
1714 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1715 return;
1716 }
1717
1718 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1719 return;
1720
1721 if (len < 4)
1722 return;
1723
8bc4372f 1724 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef 1725 return;
8bc4372f
RJ		 1726 data += 4;
1727 len -= 4;
b22128ef
JM		 1728
1729 /* P2P action frame */
ed496f13 1730 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1731 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1732
1733 if (len < 1)
1734 return;
1735 switch (data[0]) {
1736 case P2P_NOA:
ed496f13 1737 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1738 /* TODO */
1739 break;
1740 case P2P_PRESENCE_REQ:
1741 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1742 break;
1743 case P2P_PRESENCE_RESP:
1744 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1745 break;
1746 case P2P_GO_DISC_REQ:
1747 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1748 break;
1749 default:
ed496f13 1750 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1751 break;
1752 }
1753}
1754
1755
1756static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1757{
1758 struct p2p_data *p2p = eloop_ctx;
1759 if (p2p->go_neg_peer == NULL)
1760 return;
1761 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1762 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1763 p2p_connect_send(p2p, p2p->go_neg_peer);
1764}
1765
1766
1767static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1768{
1769 struct p2p_data *p2p = eloop_ctx;
1770 if (p2p->invite_peer == NULL)
1771 return;
1772 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
8e9f53c3
JM		 1773 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
1774 p2p->invite_dev_pw_id);
b22128ef
JM		 1775}
1776
1777
1778static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1779 const u8 *ie, size_t ie_len)
1780{
1781 struct p2p_message msg;
1782 struct p2p_device *dev;
1783
1784 os_memset(&msg, 0, sizeof(msg));
1785 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1786 {
1787 p2p_parse_free(&msg);
1788 return; /* not a P2P probe */
1789 }
1790
1791 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1792 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1793 != 0) {
1794 /* The Probe Request is not part of P2P Device Discovery. It is
1795 * not known whether the source address of the frame is the P2P
1796 * Device Address or P2P Interface Address. Do not add a new
1797 * peer entry based on this frames.
1798 */
1799 p2p_parse_free(&msg);
1800 return;
1801 }
1802
1803 dev = p2p_get_device(p2p, addr);
1804 if (dev) {
1805 if (dev->country[0] == 0 && msg.listen_channel)
1806 os_memcpy(dev->country, msg.listen_channel, 3);
acb69cec 1807 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1808 p2p_parse_free(&msg);
1809 return; /* already known */
1810 }
1811
1812 dev = p2p_create_device(p2p, addr);
1813 if (dev == NULL) {
1814 p2p_parse_free(&msg);
1815 return;
1816 }
1817
acb69cec 1818 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1819 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1820
b22128ef
JM		 1821 if (msg.listen_channel) {
1822 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 1823 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 1824 msg.listen_channel[4]);
1825 }
1826
ed496f13 1827 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 1828
9675ce35
JM		 1829 if (msg.wfd_subelems) {
1830 wpabuf_free(dev->info.wfd_subelems);
1831 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1832 }
1833
b22128ef
JM		 1834 p2p_parse_free(&msg);
1835
ed496f13 1836 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 1837 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1838 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1839 dev->info.group_capab, dev->info.device_name,
1840 dev->listen_freq);
b22128ef
JM		 1841}
1842
1843
1844struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1845 const u8 *addr,
1846 struct p2p_message *msg)
1847{
1848 struct p2p_device *dev;
1849
1850 dev = p2p_get_device(p2p, addr);
1851 if (dev) {
acb69cec 1852 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1853 return dev; /* already known */
1854 }
1855
1856 dev = p2p_create_device(p2p, addr);
1857 if (dev == NULL)
1858 return NULL;
1859
1860 p2p_add_dev_info(p2p, addr, dev, msg);
1861
1862 return dev;
1863}
1864
1865
1866static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1867{
1868 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1869 return 1;
1870 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1871 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1872 WPA_GET_BE16(&req_dev_type[6]) == 0)
1873 return 1; /* Category match with wildcard OUI/sub-category */
1874 return 0;
1875}
1876
1877
1878int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1879 size_t num_req_dev_type)
1880{
1881 size_t i;
1882 for (i = 0; i < num_req_dev_type; i++) {
1883 if (dev_type_match(dev_type, req_dev_type[i]))
1884 return 1;
1885 }
1886 return 0;
1887}
1888
1889
1890/**
1891 * p2p_match_dev_type - Match local device type with requested type
1892 * @p2p: P2P module context from p2p_init()
1893 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1894 * Returns: 1 on match, 0 on mismatch
1895 *
1896 * This function can be used to match the Requested Device Type attribute in
1897 * WPS IE with the local device types for deciding whether to reply to a Probe
1898 * Request frame.
1899 */
1900int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1901{
1902 struct wps_parse_attr attr;
1903 size_t i;
1904
1905 if (wps_parse_msg(wps, &attr))
1906 return 1; /* assume no Requested Device Type attributes */
1907
1908 if (attr.num_req_dev_type == 0)
1909 return 1; /* no Requested Device Type attributes -> match */
1910
1911 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1912 attr.num_req_dev_type))
1913 return 1; /* Own Primary Device Type matches */
1914
1915 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1916 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1917 attr.req_dev_type,
1918 attr.num_req_dev_type))
1919 return 1; /* Own Secondary Device Type matches */
1920
1921 /* No matching device type found */
1922 return 0;
1923}
1924
1925
1926struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1927{
1928 struct wpabuf *buf;
1929 u8 *len;
360182ed 1930 int pw_id = -1;
9675ce35 1931 size_t extra = 0;
b22128ef 1932
9675ce35
JM		 1933#ifdef CONFIG_WIFI_DISPLAY
1934 if (p2p->wfd_ie_probe_resp)
1935 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1936#endif /* CONFIG_WIFI_DISPLAY */
1937
1938 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 1939 if (buf == NULL)
1940 return NULL;
1941
360182ed
JM		 1942 if (p2p->go_neg_peer) {
1943 /* Advertise immediate availability of WPS credential */
1944 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1945 }
1946
33183761
JM		 1947 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
1948 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
1949 wpabuf_free(buf);
1950 return NULL;
1951 }
b22128ef 1952
9675ce35
JM		 1953#ifdef CONFIG_WIFI_DISPLAY
1954 if (p2p->wfd_ie_probe_resp)
1955 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1956#endif /* CONFIG_WIFI_DISPLAY */
1957
b22128ef
JM		 1958 /* P2P IE */
1959 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 1960 p2p_buf_add_capability(buf, p2p->dev_capab &
1961 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 1962 if (p2p->ext_listen_interval)
1963 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1964 p2p->ext_listen_interval);
1965 p2p_buf_add_device_info(buf, p2p, NULL);
1966 p2p_buf_update_ie_hdr(buf, len);
1967
1968 return buf;
1969}
1970
1971
2d43d37f
JB		 1972static enum p2p_probe_req_status
1973p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1974 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1975{
1976 struct ieee802_11_elems elems;
1977 struct wpabuf *buf;
1978 struct ieee80211_mgmt *resp;
97c5b3c4 1979 struct p2p_message msg;
b22128ef
JM		 1980 struct wpabuf *ies;
1981
1982 if (!p2p->in_listen || !p2p->drv_in_listen) {
1983 /* not in Listen state - ignore Probe Request */
211d7ab3
JM		 1984 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
1985 p2p->in_listen, p2p->drv_in_listen);
2d43d37f 1986 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 1987 }
1988
1989 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1990 ParseFailed) {
1991 /* Ignore invalid Probe Request frames */
a5527a49 1992 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
2d43d37f 1993 return P2P_PREQ_MALFORMED;
b22128ef
JM		 1994 }
1995
1996 if (elems.p2p == NULL) {
1997 /* not a P2P probe - ignore it */
a5527a49 1998 p2p_dbg(p2p, "Not a P2P probe - ignore it");
2d43d37f 1999 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 2000 }
2001
04a85e44
JM		 2002 if (dst && !is_broadcast_ether_addr(dst) &&
2003 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2004 /* Not sent to the broadcast address or our P2P Device Address
2005 */
a5527a49
JM		 2006 p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
2007 MAC2STR(dst));
2d43d37f 2008 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2009 }
2010
2011 if (bssid && !is_broadcast_ether_addr(bssid)) {
2012 /* Not sent to the Wildcard BSSID */
a5527a49
JM		 2013 p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
2014 MAC2STR(bssid));
2d43d37f 2015 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2016 }
2017
b22128ef
JM		 2018 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2019 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2020 0) {
2021 /* not using P2P Wildcard SSID - ignore */
a5527a49 2022 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
2d43d37f 2023 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2024 }
2025
e1d52629
JM		 2026 if (supp_rates_11b_only(&elems)) {
2027 /* Indicates support for 11b rates only */
a5527a49 2028 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
2d43d37f 2029 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2030 }
2031
97c5b3c4
JM		 2032 os_memset(&msg, 0, sizeof(msg));
2033 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2034 /* Could not parse P2P attributes */
a5527a49 2035 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
2d43d37f 2036 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2037 }
2038
2039 if (msg.device_id &&
1c7447d0 2040 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4 2041 /* Device ID did not match */
a5527a49
JM		 2042 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
2043 MAC2STR(msg.device_id));
97c5b3c4 2044 p2p_parse_free(&msg);
2d43d37f 2045 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2046 }
2047
b22128ef 2048 /* Check Requested Device Type match */
97c5b3c4
JM		 2049 if (msg.wps_attributes &&
2050 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2051 /* No match with Requested Device Type */
a5527a49 2052 p2p_dbg(p2p, "Probe Req requestred Device Type did not match - ignore it");
97c5b3c4 2053 p2p_parse_free(&msg);
2d43d37f 2054 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2055 }
97c5b3c4 2056 p2p_parse_free(&msg);
b22128ef 2057
2d43d37f
JB		 2058 if (!p2p->cfg->send_probe_resp) {
2059 /* Response generated elsewhere */
a5527a49 2060 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
2d43d37f
JB		 2061 return P2P_PREQ_NOT_PROCESSED;
2062 }
b22128ef 2063
ed496f13 2064 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2065
2066 /*
2067 * We do not really have a specific BSS that this frame is advertising,
2068 * so build a frame that has some information in valid format. This is
2069 * really only used for discovery purposes, not to learn exact BSS
2070 * parameters.
2071 */
2072 ies = p2p_build_probe_resp_ies(p2p);
2073 if (ies == NULL)
2d43d37f 2074 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2075
2076 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2077 if (buf == NULL) {
2078 wpabuf_free(ies);
2d43d37f 2079 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2080 }
2081
2082 resp = NULL;
2083 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2084
2085 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2086 (WLAN_FC_STYPE_PROBE_RESP << 4));
2087 os_memcpy(resp->da, addr, ETH_ALEN);
2088 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2089 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2090 resp->u.probe_resp.beacon_int = host_to_le16(100);
2091 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2092 resp->u.probe_resp.capab_info =
2093 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2094 WLAN_CAPABILITY_PRIVACY |
2095 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2096
2097 wpabuf_put_u8(buf, WLAN_EID_SSID);
2098 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2099 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2100
2101 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2102 wpabuf_put_u8(buf, 8);
2103 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2104 wpabuf_put_u8(buf, 90 / 5);
2105 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2106 wpabuf_put_u8(buf, 180 / 5);
2107 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2108 wpabuf_put_u8(buf, 360 / 5);
2109 wpabuf_put_u8(buf, 480 / 5);
2110 wpabuf_put_u8(buf, 540 / 5);
2111
2112 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2113 wpabuf_put_u8(buf, 1);
2114 wpabuf_put_u8(buf, p2p->cfg->channel);
2115
2116 wpabuf_put_buf(buf, ies);
2117 wpabuf_free(ies);
2118
2119 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2120
2121 wpabuf_free(buf);
2d43d37f
JB		 2122
2123 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2124}
2125
2126
2d43d37f
JB		 2127enum p2p_probe_req_status
2128p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2129 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2130{
2d43d37f
JB		 2131 enum p2p_probe_req_status res;
2132
b22128ef
JM		 2133 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2134
2d43d37f 2135 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2136
2137 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2138 p2p->go_neg_peer &&
c5db8e51 2139 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2140 == 0 &&
2141 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2142 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2143 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2144 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2145 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2146 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2147 }
2148
2149 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2150 p2p->invite_peer &&
a05e236b 2151 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
c5db8e51
KRK		 2152 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2153 == 0) {
b22128ef 2154 /* Received a Probe Request from Invite peer */
ed496f13 2155 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
aef5047a 2156 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
b22128ef 2157 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2158 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2159 }
2160
2d43d37f 2161 return res;
b22128ef
JM		 2162}
2163
2164
2165static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2166 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2167{
2168 struct wpabuf *tmp;
2169 u8 *lpos;
2170 size_t tmplen;
2171 int res;
72044390 2172 u8 group_capab;
b22128ef 2173
4c08c0bd
JM		 2174 if (p2p_ie == NULL)
2175 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2176
2177 /*
2178 * (Re)Association Request - P2P IE
2179 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2180 * P2P Interface attribute (present if concurrent device and
2181 * P2P Management is enabled)
b22128ef
JM		 2182 */
2183 tmp = wpabuf_alloc(200);
2184 if (tmp == NULL)
2185 return -1;
2186
2187 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2188 group_capab = 0;
2189 if (p2p->num_groups > 0) {
2190 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2191 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2192 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2193 p2p->cross_connect)
2194 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2195 }
2196 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2197 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2198 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2199 p2p_buf_add_p2p_interface(tmp, p2p);
2200 p2p_buf_update_ie_hdr(tmp, lpos);
2201
2202 tmplen = wpabuf_len(tmp);
2203 if (tmplen > len)
2204 res = -1;
2205 else {
2206 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2207 res = tmplen;
2208 }
2209 wpabuf_free(tmp);
2210
2211 return res;
2212}
2213
2214
2215int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2216 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2217{
2218 struct wpabuf *tmp;
2219 u8 *lpos;
2220 struct p2p_device *peer;
2221 size_t tmplen;
2222 int res;
9675ce35 2223 size_t extra = 0;
b22128ef
JM		 2224
2225 if (!p2p_group)
4c08c0bd 2226 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2227
9675ce35
JM		 2228#ifdef CONFIG_WIFI_DISPLAY
2229 if (p2p->wfd_ie_assoc_req)
2230 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2231#endif /* CONFIG_WIFI_DISPLAY */
2232
b22128ef
JM		 2233 /*
2234 * (Re)Association Request - P2P IE
2235 * P2P Capability attribute (shall be present)
2236 * Extended Listen Timing (may be present)
2237 * P2P Device Info attribute (shall be present)
2238 */
9675ce35 2239 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2240 if (tmp == NULL)
2241 return -1;
2242
9675ce35
JM		 2243#ifdef CONFIG_WIFI_DISPLAY
2244 if (p2p->wfd_ie_assoc_req)
2245 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2246#endif /* CONFIG_WIFI_DISPLAY */
2247
b22128ef
JM		 2248 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2249
2250 lpos = p2p_buf_add_ie_hdr(tmp);
2251 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2252 if (p2p->ext_listen_interval)
2253 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2254 p2p->ext_listen_interval);
b22128ef
JM		 2255 p2p_buf_add_device_info(tmp, p2p, peer);
2256 p2p_buf_update_ie_hdr(tmp, lpos);
2257
2258 tmplen = wpabuf_len(tmp);
2259 if (tmplen > len)
2260 res = -1;
2261 else {
2262 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2263 res = tmplen;
2264 }
2265 wpabuf_free(tmp);
2266
2267 return res;
2268}
2269
2270
2271int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2272{
2273 struct wpabuf *p2p_ie;
2274 int ret;
2275
2276 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2277 if (p2p_ie == NULL)
2278 return 0;
2279
2280 ret = p2p_attr_text(p2p_ie, buf, end);
2281 wpabuf_free(p2p_ie);
2282 return ret;
2283}
2284
2285
c2d76aa6 2286int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2287{
0a70f34f
JM		 2288 struct p2p_message msg;
2289
0a70f34f 2290 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2291 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2292 return -1;
0a70f34f 2293
526ec4ae
JM		 2294 if (msg.p2p_device_addr) {
2295 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2296 return 0;
526ec4ae
JM		 2297 } else if (msg.device_id) {
2298 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2299 return 0;
0a70f34f 2300 }
c2d76aa6
MH		 2301 return -1;
2302}
0a70f34f 2303
c2d76aa6
MH		 2304
2305int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2306{
2307 struct wpabuf *p2p_ie;
2308 int ret;
2309
2310 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2311 P2P_IE_VENDOR_TYPE);
2312 if (p2p_ie == NULL)
2313 return -1;
2314 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2315 wpabuf_free(p2p_ie);
526ec4ae 2316 return ret;
0a70f34f
JM		 2317}
2318
2319
b22128ef
JM		 2320static void p2p_clear_go_neg(struct p2p_data *p2p)
2321{
2322 p2p->go_neg_peer = NULL;
2323 p2p_clear_timeout(p2p);
2324 p2p_set_state(p2p, P2P_IDLE);
2325}
2326
2327
2328void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2329{
2330 if (p2p->go_neg_peer == NULL) {
ed496f13 2331 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2332 return; /* No pending Group Formation */
2333 }
2334
2335 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2336 0) {
ed496f13
JM		 2337 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2338 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2339 MAC2STR(mac_addr),
2340 MAC2STR(p2p->go_neg_peer->intended_addr));
2341 return; /* Ignore unexpected peer address */
2342 }
2343
ed496f13 2344 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2345 MAC2STR(mac_addr));
2346
2347 p2p_clear_go_neg(p2p);
2348}
2349
2350
2351void p2p_group_formation_failed(struct p2p_data *p2p)
2352{
2353 if (p2p->go_neg_peer == NULL) {
ed496f13 2354 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2355 return; /* No pending Group Formation */
2356 }
2357
ed496f13 2358 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2359 MAC2STR(p2p->go_neg_peer->intended_addr));
2360
2361 p2p_clear_go_neg(p2p);
2362}
2363
2364
2365struct p2p_data * p2p_init(const struct p2p_config *cfg)
2366{
2367 struct p2p_data *p2p;
2368
2369 if (cfg->max_peers < 1)
2370 return NULL;
2371
2372 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2373 if (p2p == NULL)
2374 return NULL;
2375 p2p->cfg = (struct p2p_config *) (p2p + 1);
2376 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2377 if (cfg->dev_name)
2378 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2379 if (cfg->manufacturer)
2380 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2381 if (cfg->model_name)
2382 p2p->cfg->model_name = os_strdup(cfg->model_name);
2383 if (cfg->model_number)
2384 p2p->cfg->model_number = os_strdup(cfg->model_number);
2385 if (cfg->serial_number)
2386 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2387 if (cfg->pref_chan) {
2388 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2389 sizeof(struct p2p_channel));
2390 if (p2p->cfg->pref_chan) {
2391 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2392 cfg->num_pref_chan *
2393 sizeof(struct p2p_channel));
2394 } else
2395 p2p->cfg->num_pref_chan = 0;
2396 }
b22128ef
JM		 2397
2398 p2p->min_disc_int = 1;
2399 p2p->max_disc_int = 3;
96beff11 2400 p2p->max_disc_tu = -1;
b22128ef
JM		 2401
2402 os_get_random(&p2p->next_tie_breaker, 1);
2403 p2p->next_tie_breaker &= 0x01;
2404 if (cfg->sd_request)
2405 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2406 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2407 if (cfg->concurrent_operations)
2408 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2409 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2410
2411 dl_list_init(&p2p->devices);
2412
2413 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2414 p2p_expiration_timeout, p2p, NULL);
2415
4f219667
JM		 2416 p2p->go_timeout = 100;
2417 p2p->client_timeout = 20;
f667e031 2418 p2p->num_p2p_sd_queries = 0;
4f219667 2419
51e9f228
JM		 2420 p2p_dbg(p2p, "initialized");
2421 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2422 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2423
b22128ef
JM		 2424 return p2p;
2425}
2426
2427
2428void p2p_deinit(struct p2p_data *p2p)
2429{
9675ce35
JM		 2430#ifdef CONFIG_WIFI_DISPLAY
2431 wpabuf_free(p2p->wfd_ie_beacon);
2432 wpabuf_free(p2p->wfd_ie_probe_req);
2433 wpabuf_free(p2p->wfd_ie_probe_resp);
2434 wpabuf_free(p2p->wfd_ie_assoc_req);
2435 wpabuf_free(p2p->wfd_ie_invitation);
2436 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2437 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2438 wpabuf_free(p2p->wfd_ie_go_neg);
2439 wpabuf_free(p2p->wfd_dev_info);
2440 wpabuf_free(p2p->wfd_assoc_bssid);
2441 wpabuf_free(p2p->wfd_coupled_sink_info);
2442#endif /* CONFIG_WIFI_DISPLAY */
2443
b22128ef
JM		 2444 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2445 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2446 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2447 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2448 p2p_flush(p2p);
046ef4aa 2449 p2p_free_req_dev_types(p2p);
b22128ef 2450 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2451 os_free(p2p->cfg->manufacturer);
2452 os_free(p2p->cfg->model_name);
2453 os_free(p2p->cfg->model_number);
2454 os_free(p2p->cfg->serial_number);
21d996f7 2455 os_free(p2p->cfg->pref_chan);
b22128ef 2456 os_free(p2p->groups);
18708aad 2457 wpabuf_free(p2p->sd_resp);
3f9285ff 2458 os_free(p2p->after_scan_tx);
f95cac27 2459 p2p_remove_wps_vendor_extensions(p2p);
556b30da 2460 os_free(p2p->no_go_freq.range);
b22128ef
JM		 2461 os_free(p2p);
2462}
2463
2464
2465void p2p_flush(struct p2p_data *p2p)
2466{
2467 struct p2p_device *dev, *prev;
78db55b8 2468 p2p_stop_find(p2p);
b22128ef
JM		 2469 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2470 list) {
2471 dl_list_del(&dev->list);
2472 p2p_device_free(p2p, dev);
2473 }
2474 p2p_free_sd_queries(p2p);
f44ae207
JM		 2475 os_free(p2p->after_scan_tx);
2476 p2p->after_scan_tx = NULL;
b22128ef
JM		 2477}
2478
2479
9d562b79
SS		 2480int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2481{
2482 struct p2p_device *dev;
2483
2484 dev = p2p_get_device(p2p, addr);
2485 if (dev == NULL)
2486 return -1;
2487
ed496f13 2488 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79
SS		 2489
2490 if (p2p->go_neg_peer == dev)
2491 p2p->go_neg_peer = NULL;
2492
2493 dev->wps_method = WPS_NOT_READY;
ab9e3442 2494 dev->oob_pw_id = 0;
9d562b79
SS		 2495 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2496 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2497
2498 /* Check if after_scan_tx is for this peer. If so free it */
2499 if (p2p->after_scan_tx &&
2500 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2501 os_free(p2p->after_scan_tx);
2502 p2p->after_scan_tx = NULL;
2503 }
2504
2505 return 0;
2506}
2507
2508
b22128ef
JM		 2509int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2510{
2511 os_free(p2p->cfg->dev_name);
2512 if (dev_name) {
2513 p2p->cfg->dev_name = os_strdup(dev_name);
2514 if (p2p->cfg->dev_name == NULL)
2515 return -1;
2516 } else
2517 p2p->cfg->dev_name = NULL;
2518 return 0;
2519}
2520
2521
b6e01800
JM		 2522int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2523{
2524 os_free(p2p->cfg->manufacturer);
2525 p2p->cfg->manufacturer = NULL;
2526 if (manufacturer) {
2527 p2p->cfg->manufacturer = os_strdup(manufacturer);
2528 if (p2p->cfg->manufacturer == NULL)
2529 return -1;
2530 }
2531
2532 return 0;
2533}
2534
2535
2536int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2537{
2538 os_free(p2p->cfg->model_name);
2539 p2p->cfg->model_name = NULL;
2540 if (model_name) {
2541 p2p->cfg->model_name = os_strdup(model_name);
2542 if (p2p->cfg->model_name == NULL)
2543 return -1;
2544 }
2545
2546 return 0;
2547}
2548
2549
2550int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2551{
2552 os_free(p2p->cfg->model_number);
2553 p2p->cfg->model_number = NULL;
2554 if (model_number) {
2555 p2p->cfg->model_number = os_strdup(model_number);
2556 if (p2p->cfg->model_number == NULL)
2557 return -1;
2558 }
2559
2560 return 0;
2561}
2562
2563
2564int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2565{
2566 os_free(p2p->cfg->serial_number);
2567 p2p->cfg->serial_number = NULL;
2568 if (serial_number) {
2569 p2p->cfg->serial_number = os_strdup(serial_number);
2570 if (p2p->cfg->serial_number == NULL)
2571 return -1;
2572 }
2573
2574 return 0;
2575}
2576
2577
2578void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2579{
2580 p2p->cfg->config_methods = config_methods;
2581}
2582
2583
2584void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2585{
2586 os_memcpy(p2p->cfg->uuid, uuid, 16);
2587}
2588
2589
b22128ef
JM		 2590int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2591{
2592 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2593 return 0;
2594}
2595
2596
2597int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2598 size_t num_dev_types)
2599{
2600 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2601 num_dev_types = P2P_SEC_DEVICE_TYPES;
2602 p2p->cfg->num_sec_dev_types = num_dev_types;
2603 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2604 return 0;
2605}
2606
2607
f95cac27
JMB		 2608void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2609{
2610 int i;
2611
10c5d2a5 2612 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2613 wpabuf_free(p2p->wps_vendor_ext[i]);
2614 p2p->wps_vendor_ext[i] = NULL;
2615 }
2616}
2617
2618
2619int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2620 const struct wpabuf *vendor_ext)
2621{
2622 int i;
2623
2624 if (vendor_ext == NULL)
2625 return -1;
2626
10c5d2a5 2627 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2628 if (p2p->wps_vendor_ext[i] == NULL)
2629 break;
2630 }
10c5d2a5 2631 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2632 return -1;
2633
2634 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2635 if (p2p->wps_vendor_ext[i] == NULL)
2636 return -1;
2637
2638 return 0;
2639}
2640
2641
b22128ef
JM		 2642int p2p_set_country(struct p2p_data *p2p, const char *country)
2643{
2644 os_memcpy(p2p->cfg->country, country, 3);
2645 return 0;
2646}
2647
2648
2649void p2p_continue_find(struct p2p_data *p2p)
2650{
2651 struct p2p_device *dev;
2652 p2p_set_state(p2p, P2P_SEARCH);
2653 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
f667e031
JJ		 2654 if (dev->sd_pending_bcast_queries == 0) {
2655 /* Initialize with total number of registered broadcast
2656 * SD queries. */
2657 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
2658 }
2659
2660 if (p2p_start_sd(p2p, dev) == 0)
2661 return;
2662 if (dev->req_config_methods &&
2663 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
ed496f13 2664 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
10c4edde 2665 MACSTR " (config methods 0x%x)",
c5db8e51 2666 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2667 dev->req_config_methods);
1ef2f7ff 2668 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2669 return;
2670 }
2671 }
2672
96beff11 2673 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2674}
2675
2676
2677static void p2p_sd_cb(struct p2p_data *p2p, int success)
2678{
ed496f13 2679 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 2680 success);
2681 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2682
2683 if (!success) {
f667e031 2684 p2p->sd_peer = NULL;
b22128ef
JM		 2685 p2p_continue_find(p2p);
2686 return;
2687 }
2688
2689 if (p2p->sd_peer == NULL) {
ed496f13 2690 p2p_dbg(p2p, "No SD peer entry known");
b22128ef
JM		 2691 p2p_continue_find(p2p);
2692 return;
2693 }
2694
2695 /* Wait for response from the peer */
2696 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2697 p2p_set_timeout(p2p, 0, 200000);
2698}
2699
6b56cc2d
JS		 2700
2701/**
2702 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2703 * @p2p: P2P module context from p2p_init()
2704 */
19df9b07 2705static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2706{
2707 struct p2p_device *dev;
2708
2709 if (p2p->state != P2P_IDLE)
2710 return;
2711
2712 /*
2713 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2714 * requested.
6b56cc2d
JS		 2715 */
2716
2717 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2718 if (os_memcmp(p2p->pending_pd_devaddr,
2719 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2720 continue;
2721 if (!dev->req_config_methods)
2722 continue;
6b56cc2d 2723
ed496f13 2724 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 2725 MACSTR " (config methods 0x%x)",
2726 MAC2STR(dev->info.p2p_device_addr),
2727 dev->req_config_methods);
175171ac 2728 p2p_send_prov_disc_req(p2p, dev,
8d82c210
JM		 2729 dev->flags & P2P_DEV_PD_FOR_JOIN,
2730 p2p->pd_force_freq);
6b56cc2d
JS		 2731 return;
2732 }
2733}
2734
2735
b22128ef
JM		 2736static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2737{
ed496f13 2738 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 2739 success);
6b56cc2d
JS		 2740
2741 /*
2742 * Postpone resetting the pending action state till after we actually
2743 * time out. This allows us to take some action like notifying any
2744 * interested parties about no response to the request.
2745 *
2746 * When the timer (below) goes off we check in IDLE, SEARCH, or
2747 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2748 * requests in, if this was still pending and then raise notification.
2749 */
b22128ef
JM		 2750
2751 if (!success) {
6b56cc2d
JS		 2752 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2753
488f4a71
JM		 2754 if (p2p->user_initiated_pd &&
2755 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2756 {
2757 /* Retry request from timeout to avoid busy loops */
2758 p2p->pending_action_state = P2P_PENDING_PD;
2759 p2p_set_timeout(p2p, 0, 50000);
2760 } else if (p2p->state != P2P_IDLE)
b22128ef 2761 p2p_continue_find(p2p);
6b56cc2d
JS		 2762 else if (p2p->user_initiated_pd) {
2763 p2p->pending_action_state = P2P_PENDING_PD;
2764 p2p_set_timeout(p2p, 0, 300000);
2765 }
b22128ef
JM		 2766 return;
2767 }
2768
6b56cc2d
JS		 2769 /*
2770 * This postponing, of resetting pending_action_state, needs to be
2771 * done only for user initiated PD requests and not internal ones.
2772 */
2773 if (p2p->user_initiated_pd)
2774 p2p->pending_action_state = P2P_PENDING_PD;
2775 else
2776 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2777
b22128ef
JM		 2778 /* Wait for response from the peer */
2779 if (p2p->state == P2P_SEARCH)
2780 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2781 p2p_set_timeout(p2p, 0, 200000);
2782}
2783
2784
2785int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
acb69cec 2786 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 2787 size_t ies_len)
b22128ef 2788{
acb69cec 2789 if (os_reltime_before(rx_time, &p2p->find_start)) {
a5b5e830
JM		 2790 /*
2791 * The driver may have cached (e.g., in cfg80211 BSS table) the
2792 * scan results for relatively long time. To avoid reporting
2793 * stale information, update P2P peers only based on results
2794 * that have based on frames received after the last p2p_find
2795 * operation was started.
2796 */
ed496f13
JM		 2797 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
2798 " (rx_time=%u.%06u)",
a5b5e830
JM		 2799 MAC2STR(bssid), (unsigned int) rx_time->sec,
2800 (unsigned int) rx_time->usec);
2801 return 0;
2802 }
2803
c5f10e80 2804 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 2805
b22128ef
JM		 2806 return 0;
2807}
2808
2809
2810void p2p_scan_res_handled(struct p2p_data *p2p)
2811{
2812 if (!p2p->p2p_scan_running) {
ed496f13 2813 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 2814 }
2815 p2p->p2p_scan_running = 0;
2816 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2817
2818 if (p2p_run_after_scan(p2p))
2819 return;
2820 if (p2p->state == P2P_SEARCH)
2821 p2p_continue_find(p2p);
2822}
2823
2824
6d92fa6e 2825void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2826{
9675ce35
JM		 2827 u8 *len;
2828
2829#ifdef CONFIG_WIFI_DISPLAY
2830 if (p2p->wfd_ie_probe_req)
2831 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2832#endif /* CONFIG_WIFI_DISPLAY */
2833
2834 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2835 p2p_buf_add_capability(ies, p2p->dev_capab &
2836 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2837 if (dev_id)
2838 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2839 if (p2p->cfg->reg_class && p2p->cfg->channel)
2840 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2841 p2p->cfg->reg_class,
2842 p2p->cfg->channel);
2843 if (p2p->ext_listen_interval)
2844 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2845 p2p->ext_listen_interval);
2846 /* TODO: p2p_buf_add_operating_channel() if GO */
2847 p2p_buf_update_ie_hdr(ies, len);
2848}
2849
2850
206e1f42
JM		 2851size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2852{
9675ce35
JM		 2853 size_t len = 100;
2854
2855#ifdef CONFIG_WIFI_DISPLAY
2856 if (p2p && p2p->wfd_ie_probe_req)
2857 len += wpabuf_len(p2p->wfd_ie_probe_req);
2858#endif /* CONFIG_WIFI_DISPLAY */
2859
2860 return len;
206e1f42
JM		 2861}
2862
2863
b22128ef
JM		 2864int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2865{
2866 return p2p_attr_text(p2p_ie, buf, end);
2867}
2868
2869
2870static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2871{
2872 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 2873 int timeout;
b22128ef 2874
ed496f13 2875 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 2876
2877 if (dev == NULL) {
ed496f13 2878 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 2879 return;
2880 }
2881
2882 if (success) {
b22128ef
JM		 2883 if (dev->flags & P2P_DEV_USER_REJECTED) {
2884 p2p_set_state(p2p, P2P_IDLE);
2885 return;
2886 }
a1d2ab32
NKG		 2887 } else if (dev->go_neg_req_sent) {
2888 /* Cancel the increment from p2p_connect_send() on failure */
2889 dev->go_neg_req_sent--;
b22128ef
JM		 2890 }
2891
2892 if (!success &&
c5db8e51 2893 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 2894 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 2895 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 2896 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2897 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2898 p2p_send_dev_disc_req(p2p, dev);
2899 return;
2900 }
2901
2902 /*
2903 * Use P2P find, if needed, to find the other device from its listen
2904 * channel.
2905 */
2906 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 2907 timeout = success ? 500000 : 100000;
2908 if (!success && p2p->go_neg_peer &&
2909 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
2910 unsigned int r;
2911 /*
2912 * Peer is expected to wait our response and we will skip the
2913 * listen phase. Add some randomness to the wait time here to
2914 * make it less likely to hit cases where we could end up in
2915 * sync with peer not listening.
2916 */
2917 os_get_random((u8 *) &r, sizeof(r));
2918 timeout += r % 100000;
2919 }
2920 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 2921}
2922
2923
2924static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2925{
ed496f13 2926 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 2927 success);
2928 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 2929 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 2930 return;
2931 }
2932 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 2933 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 2934}
2935
2936
7800d45c
JM		 2937static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
2938 const u8 *addr)
b22128ef 2939{
ed496f13 2940 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272
JM		 2941 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2942 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2943 p2p->go_neg_peer->status);
7800d45c
JM		 2944 } else if (success) {
2945 struct p2p_device *dev;
2946 dev = p2p_get_device(p2p, addr);
2947 if (dev &&
2948 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
2949 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 2950 }
b22128ef
JM		 2951}
2952
2953
93b7ddd0
JM		 2954static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2955 enum p2p_send_action_result result)
b22128ef
JM		 2956{
2957 struct p2p_device *dev;
2958
ed496f13 2959 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
93b7ddd0 2960 if (result == P2P_SEND_ACTION_FAILED) {
0e0e1e56 2961 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2962 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2963 return;
2964 }
0e0e1e56
NS		 2965
2966 dev = p2p->go_neg_peer;
2967
93b7ddd0 2968 if (result == P2P_SEND_ACTION_NO_ACK) {
0e0e1e56
NS		 2969 /*
2970 * Retry GO Negotiation Confirmation
2971 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
2972 * ACK for confirmation.
2973 */
2974 if (dev && dev->go_neg_conf &&
2975 dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
2976 p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
2977 dev->go_neg_conf_sent);
2978 p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
2979 if (p2p_send_action(p2p, dev->go_neg_conf_freq,
2980 dev->info.p2p_device_addr,
2981 p2p->cfg->dev_addr,
2982 dev->info.p2p_device_addr,
2983 wpabuf_head(dev->go_neg_conf),
2984 wpabuf_len(dev->go_neg_conf), 0) >=
2985 0) {
2986 dev->go_neg_conf_sent++;
2987 return;
2988 }
2989 p2p_dbg(p2p, "Failed to re-send Action frame");
2990
2991 /*
2992 * Continue with the assumption that the first attempt
2993 * went through and just the ACK frame was lost.
2994 */
2995 }
2996
b22128ef
JM		 2997 /*
2998 * It looks like the TX status for GO Negotiation Confirm is
2999 * often showing failure even when the peer has actually
3000 * received the frame. Since the peer may change channels
3001 * immediately after having received the frame, we may not see
3002 * an Ack for retries, so just dropping a single frame may
3003 * trigger this. To allow the group formation to succeed if the
3004 * peer did indeed receive the frame, continue regardless of
3005 * the TX status.
3006 */
ed496f13 3007 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 3008 }
3009
0e0e1e56
NS		 3010 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3011
b22128ef
JM		 3012 if (dev == NULL)
3013 return;
3014
3015 p2p_go_complete(p2p, dev);
3016}
3017
3018
3019void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 3020 const u8 *src, const u8 *bssid,
3021 enum p2p_send_action_result result)
b22128ef
JM		 3022{
3023 enum p2p_pending_action_state state;
93b7ddd0 3024 int success;
b22128ef 3025
ed496f13 3026 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 3027 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 3028 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 3029 MAC2STR(bssid), result);
3030 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 3031 state = p2p->pending_action_state;
3032 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3033 switch (state) {
3034 case P2P_NO_PENDING_ACTION:
c5c2d942
JM		 3035 if (p2p->send_action_in_progress) {
3036 p2p->send_action_in_progress = 0;
3037 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3038 }
63a965c3
JM		 3039 if (p2p->after_scan_tx_in_progress) {
3040 p2p->after_scan_tx_in_progress = 0;
3041 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
3042 p2p_run_after_scan(p2p))
3043 break;
3044 if (p2p->state == P2P_SEARCH) {
ed496f13 3045 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
63a965c3
JM		 3046 p2p_continue_find(p2p);
3047 }
3048 }
b22128ef
JM		 3049 break;
3050 case P2P_PENDING_GO_NEG_REQUEST:
3051 p2p_go_neg_req_cb(p2p, success);
3052 break;
3053 case P2P_PENDING_GO_NEG_RESPONSE:
3054 p2p_go_neg_resp_cb(p2p, success);
3055 break;
3056 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 3057 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 3058 break;
3059 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 3060 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 3061 break;
3062 case P2P_PENDING_SD:
3063 p2p_sd_cb(p2p, success);
3064 break;
3065 case P2P_PENDING_PD:
3066 p2p_prov_disc_cb(p2p, success);
3067 break;
3068 case P2P_PENDING_INVITATION_REQUEST:
3069 p2p_invitation_req_cb(p2p, success);
3070 break;
3071 case P2P_PENDING_INVITATION_RESPONSE:
3072 p2p_invitation_resp_cb(p2p, success);
3073 break;
3074 case P2P_PENDING_DEV_DISC_REQUEST:
3075 p2p_dev_disc_req_cb(p2p, success);
3076 break;
3077 case P2P_PENDING_DEV_DISC_RESPONSE:
3078 p2p_dev_disc_resp_cb(p2p, success);
3079 break;
3080 case P2P_PENDING_GO_DISC_REQ:
3081 p2p_go_disc_req_cb(p2p, success);
3082 break;
3083 }
63a965c3
JM		 3084
3085 p2p->after_scan_tx_in_progress = 0;
b22128ef
JM		 3086}
3087
3088
3089void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3090 unsigned int duration)
3091{
3092 if (freq == p2p->pending_client_disc_freq) {
ed496f13 3093 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 3094 p2p->pending_client_disc_freq = 0;
3095 return;
3096 }
3097
3098 if (freq != p2p->pending_listen_freq) {
ed496f13 3099 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3100 freq, duration, p2p->pending_listen_freq);
3101 return;
3102 }
3103
ed496f13 3104 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3105 p2p->pending_listen_sec, p2p->pending_listen_usec,
3106 p2p->pending_listen_freq);
3107 p2p->in_listen = 1;
0b8889d8 3108 p2p->drv_in_listen = freq;
b22128ef
JM		 3109 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3110 /*
3111 * Add 20 msec extra wait to avoid race condition with driver
3112 * remain-on-channel end event, i.e., give driver more time to
3113 * complete the operation before our timeout expires.
3114 */
3115 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3116 p2p->pending_listen_usec + 20000);
3117 }
3118
3119 p2p->pending_listen_freq = 0;
3120}
3121
3122
3123int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3124{
ed496f13 3125 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3126 p2p->drv_in_listen = 0;
3127 if (p2p->in_listen)
3128 return 0; /* Internal timeout will trigger the next step */
3129
3130 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3131 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3132 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
e24cf97c
JM		 3133 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3134 return 0;
3135 }
3136
b22128ef
JM		 3137 p2p_set_state(p2p, P2P_CONNECT);
3138 p2p_connect_send(p2p, p2p->go_neg_peer);
3139 return 1;
3140 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3141 if (p2p->p2p_scan_running) {
3142 /*
3143 * Search is already in progress. This can happen if
3144 * an Action frame RX is reported immediately after
3145 * the end of a remain-on-channel operation and the
3146 * response frame to that is sent using an offchannel
3147 * operation while in p2p_find. Avoid an attempt to
3148 * restart a scan here.
3149 */
ed496f13 3150 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3151 return 1;
3152 }
3fe8b68d
JM		 3153 if (p2p->pending_listen_freq) {
3154 /*
3155 * Better wait a bit if the driver is unable to start
3156 * offchannel operation for some reason. p2p_search()
3157 * will be started from internal timeout.
3158 */
ed496f13 3159 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3160 p2p_set_timeout(p2p, 0, 100000);
3161 return 1;
3162 }
37448ede 3163 if (p2p->search_delay) {
ed496f13 3164 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3165 p2p->search_delay);
3166 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3167 (p2p->search_delay % 1000) * 1000);
3168 return 1;
3169 }
b22128ef
JM		 3170 p2p_search(p2p);
3171 return 1;
3172 }
3173
3174 return 0;
3175}
3176
3177
3178static void p2p_timeout_connect(struct p2p_data *p2p)
3179{
3180 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3181 if (p2p->go_neg_peer &&
3182 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3183 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
579a8098
JM		 3184 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3185 return;
3186 }
fb8984fd
JM		 3187 if (p2p->go_neg_peer &&
3188 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3189 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3190 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3191 p2p_connect_send(p2p, p2p->go_neg_peer);
3192 return;
3193 }
fdd48ff6
JM		 3194 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3195 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3196 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3197 p2p_set_timeout(p2p, 0, 30000);
3198 return;
3199 }
b22128ef 3200 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3201 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3202}
3203
3204
3205static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3206{
3207 if (p2p->go_neg_peer) {
3208 if (p2p->drv_in_listen) {
ed496f13 3209 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3210 return;
3211 }
9dac8c3e
FM		 3212
3213 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3214 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
9dac8c3e
FM		 3215 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3216 return;
3217 }
3218
b22128ef
JM		 3219 p2p_set_state(p2p, P2P_CONNECT);
3220 p2p_connect_send(p2p, p2p->go_neg_peer);
3221 } else
3222 p2p_set_state(p2p, P2P_IDLE);
3223}
3224
3225
3226static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3227{
b22128ef 3228 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
a2d63657
RR		 3229
3230 if (p2p->cfg->is_concurrent_session_active &&
3231 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3232 p2p_set_timeout(p2p, 0, 500000);
3233 else
3234 p2p_set_timeout(p2p, 0, 200000);
b22128ef
JM		 3235}
3236
3237
3238static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3239{
3240 struct p2p_device *dev = p2p->go_neg_peer;
3241
3242 if (dev == NULL) {
ed496f13 3243 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3244 return;
3245 }
3246
3247 dev->wait_count++;
3248 if (dev->wait_count >= 120) {
ed496f13 3249 p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation");
b22128ef
JM		 3250 p2p_go_neg_failed(p2p, dev, -1);
3251 return;
3252 }
3253
ed496f13 3254 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3255 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3256 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3257}
3258
3259
3260static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3261{
ed496f13 3262 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3263 if (p2p->sd_peer) {
3264 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 3265 p2p->sd_peer = NULL;
3266 }
3267 p2p_continue_find(p2p);
3268}
3269
3270
3271static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3272{
ed496f13 3273 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3274 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3275 p2p_continue_find(p2p);
3276}
3277
3278
6b56cc2d
JS		 3279static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3280{
3281 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3282
3283 /*
3284 * For user initiated PD requests that we have not gotten any responses
3285 * for while in IDLE state, we retry them a couple of times before
3286 * giving up.
3287 */
3288 if (!p2p->user_initiated_pd)
3289 return;
3290
ed496f13 3291 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 3292
3293 if (p2p->pd_retries) {
3294 p2p->pd_retries--;
3295 p2p_retry_pd(p2p);
3296 } else {
175171ac
JM		 3297 struct p2p_device *dev;
3298 int for_join = 0;
3299
3300 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3301 if (os_memcmp(p2p->pending_pd_devaddr,
3302 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3303 continue;
3304 if (dev->req_config_methods &&
3305 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3306 for_join = 1;
3307 }
3308
349b213c
JS		 3309 if (p2p->cfg->prov_disc_fail)
3310 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3311 p2p->pending_pd_devaddr,
175171ac
JM		 3312 for_join ?
3313 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3314 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3315 p2p_reset_pending_pd(p2p);
3316 }
3317}
3318
3319
b22128ef
JM		 3320static void p2p_timeout_invite(struct p2p_data *p2p)
3321{
3322 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3323 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3324 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3325 /*
3326 * Better remain on operating channel instead of listen channel
3327 * when running a group.
3328 */
ed496f13 3329 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 3330 p2p_set_timeout(p2p, 0, 100000);
3331 return;
3332 }
96beff11 3333 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3334}
3335
3336
3337static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3338{
3339 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3340 p2p_set_state(p2p, P2P_INVITE);
3341 p2p_invite_send(p2p, p2p->invite_peer,
8e9f53c3 3342 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
b22128ef
JM		 3343 } else {
3344 if (p2p->invite_peer) {
ed496f13 3345 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 3346 if (p2p->cfg->invitation_result)
3347 p2p->cfg->invitation_result(
dbca75f8 3348 p2p->cfg->cb_ctx, -1, NULL, NULL,
dcd25d4c 3349 p2p->invite_peer->info.p2p_device_addr,
41d5ce9e 3350 0, 0);
b22128ef
JM		 3351 }
3352 p2p_set_state(p2p, P2P_IDLE);
3353 }
3354}
3355
3356
3357static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3358{
3359 struct p2p_data *p2p = eloop_ctx;
3360
ed496f13 3361 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3362
3363 p2p->in_listen = 0;
3364
3365 switch (p2p->state) {
3366 case P2P_IDLE:
6b56cc2d
JS		 3367 /* Check if we timed out waiting for PD req */
3368 if (p2p->pending_action_state == P2P_PENDING_PD)
3369 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3370 break;
3371 case P2P_SEARCH:
6b56cc2d
JS		 3372 /* Check if we timed out waiting for PD req */
3373 if (p2p->pending_action_state == P2P_PENDING_PD)
3374 p2p_timeout_prov_disc_req(p2p);
37448ede 3375 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 3376 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3377 p2p->search_delay);
3378 p2p->in_search_delay = 1;
3379 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3380 (p2p->search_delay % 1000) * 1000);
3381 break;
3382 }
3383 p2p->in_search_delay = 0;
b22128ef
JM		 3384 p2p_search(p2p);
3385 break;
3386 case P2P_CONNECT:
3387 p2p_timeout_connect(p2p);
3388 break;
3389 case P2P_CONNECT_LISTEN:
3390 p2p_timeout_connect_listen(p2p);
3391 break;
3392 case P2P_GO_NEG:
3393 break;
3394 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3395 /* Check if we timed out waiting for PD req */
3396 if (p2p->pending_action_state == P2P_PENDING_PD)
3397 p2p_timeout_prov_disc_req(p2p);
3398
b22128ef 3399 if (p2p->ext_listen_only) {
ed496f13 3400 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 3401 p2p->ext_listen_only = 0;
3402 p2p_set_state(p2p, P2P_IDLE);
3403 }
3404 break;
3405 case P2P_WAIT_PEER_CONNECT:
3406 p2p_timeout_wait_peer_connect(p2p);
3407 break;
3408 case P2P_WAIT_PEER_IDLE:
3409 p2p_timeout_wait_peer_idle(p2p);
3410 break;
3411 case P2P_SD_DURING_FIND:
3412 p2p_timeout_sd_during_find(p2p);
3413 break;
3414 case P2P_PROVISIONING:
3415 break;
3416 case P2P_PD_DURING_FIND:
3417 p2p_timeout_prov_disc_during_find(p2p);
3418 break;
3419 case P2P_INVITE:
3420 p2p_timeout_invite(p2p);
3421 break;
3422 case P2P_INVITE_LISTEN:
3423 p2p_timeout_invite_listen(p2p);
3424 break;
3425 }
3426}
3427
3428
3429int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3430{
3431 struct p2p_device *dev;
3432
3433 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 3434 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3435 MACSTR, MAC2STR(peer_addr));
b22128ef 3436 if (dev == NULL) {
ed496f13 3437 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 3438 return -1;
3439 }
3440 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3441 dev->flags |= P2P_DEV_USER_REJECTED;
3442 return 0;
3443}
3444
3445
e5a359cf 3446const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3447{
3448 switch (method) {
3449 case WPS_NOT_READY:
3450 return "not-ready";
b22128ef
JM		 3451 case WPS_PIN_DISPLAY:
3452 return "Display";
3453 case WPS_PIN_KEYPAD:
3454 return "Keypad";
3455 case WPS_PBC:
3456 return "PBC";
c00ab85f
JM		 3457 case WPS_NFC:
3458 return "NFC";
b22128ef
JM		 3459 }
3460
3461 return "??";
3462}
3463
3464
3465static const char * p2p_go_state_text(enum p2p_go_state go_state)
3466{
3467 switch (go_state) {
3468 case UNKNOWN_GO:
3469 return "unknown";
3470 case LOCAL_GO:
3471 return "local";
3472 case REMOTE_GO:
3473 return "remote";
3474 }
3475
3476 return "??";
3477}
3478
3479
b3ffc80b
JM		 3480const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3481 const u8 *addr, int next)
b22128ef
JM		 3482{
3483 struct p2p_device *dev;
b22128ef
JM		 3484
3485 if (addr)
3486 dev = p2p_get_device(p2p, addr);
3487 else
3488 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3489
3490 if (dev && next) {
3491 dev = dl_list_first(&dev->list, struct p2p_device, list);
3492 if (&dev->list == &p2p->devices)
3493 dev = NULL;
3494 }
3495
3496 if (dev == NULL)
b3ffc80b
JM		 3497 return NULL;
3498
3499 return &dev->info;
3500}
3501
3502
3503int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3504 char *buf, size_t buflen)
3505{
3506 struct p2p_device *dev;
3507 int res;
3508 char *pos, *end;
acb69cec 3509 struct os_reltime now;
b3ffc80b
JM		 3510
3511 if (info == NULL)
b22128ef
JM		 3512 return -1;
3513
b3ffc80b
JM		 3514 dev = (struct p2p_device *) (((u8 *) info) -
3515 offsetof(struct p2p_device, info));
3516
b22128ef
JM		 3517 pos = buf;
3518 end = buf + buflen;
3519
acb69cec 3520 os_get_reltime(&now);
b22128ef
JM		 3521 res = os_snprintf(pos, end - pos,
3522 "age=%d\n"
3523 "listen_freq=%d\n"
b22128ef
JM		 3524 "wps_method=%s\n"
3525 "interface_addr=" MACSTR "\n"
3526 "member_in_go_dev=" MACSTR "\n"
3527 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3528 "go_neg_req_sent=%d\n"
3529 "go_state=%s\n"
3530 "dialog_token=%u\n"
3531 "intended_addr=" MACSTR "\n"
3532 "country=%c%c\n"
3533 "oper_freq=%d\n"
3534 "req_config_methods=0x%x\n"
f667e031 3535 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3536 "status=%d\n"
3537 "wait_count=%u\n"
3538 "invitation_reqs=%u\n",
3539 (int) (now.sec - dev->last_seen.sec),
3540 dev->listen_freq,
b22128ef
JM		 3541 p2p_wps_method_text(dev->wps_method),
3542 MAC2STR(dev->interface_addr),
3543 MAC2STR(dev->member_in_go_dev),
3544 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3545 dev->go_neg_req_sent,
3546 p2p_go_state_text(dev->go_state),
3547 dev->dialog_token,
3548 MAC2STR(dev->intended_addr),
3549 dev->country[0] ? dev->country[0] : '_',
3550 dev->country[1] ? dev->country[1] : '_',
3551 dev->oper_freq,
3552 dev->req_config_methods,
3553 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3554 "[PROBE_REQ_ONLY]" : "",
3555 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3556 dev->flags & P2P_DEV_NOT_YET_READY ?
3557 "[NOT_YET_READY]" : "",
b22128ef
JM		 3558 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3559 "[PD_PEER_DISPLAY]" : "",
3560 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3561 "[PD_PEER_KEYPAD]" : "",
3562 dev->flags & P2P_DEV_USER_REJECTED ?
3563 "[USER_REJECTED]" : "",
3564 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3565 "[PEER_WAITING_RESPONSE]" : "",
3566 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3567 "[PREFER_PERSISTENT_GROUP]" : "",
3568 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3569 "[WAIT_GO_NEG_RESPONSE]" : "",
3570 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3571 "[WAIT_GO_NEG_CONFIRM]" : "",
3572 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3573 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3574 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3575 "[FORCE_FREQ]" : "",
3576 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3577 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3578 dev->status,
3579 dev->wait_count,
3580 dev->invitation_reqs);
3581 if (res < 0 || res >= end - pos)
3582 return pos - buf;
3583 pos += res;
3584
3585 if (dev->ext_listen_period) {
3586 res = os_snprintf(pos, end - pos,
3587 "ext_listen_period=%u\n"
3588 "ext_listen_interval=%u\n",
3589 dev->ext_listen_period,
3590 dev->ext_listen_interval);
3591 if (res < 0 || res >= end - pos)
3592 return pos - buf;
3593 pos += res;
3594 }
3595
3596 if (dev->oper_ssid_len) {
3597 res = os_snprintf(pos, end - pos,
3598 "oper_ssid=%s\n",
3599 wpa_ssid_txt(dev->oper_ssid,
3600 dev->oper_ssid_len));
3601 if (res < 0 || res >= end - pos)
3602 return pos - buf;
3603 pos += res;
3604 }
3605
9675ce35
JM		 3606#ifdef CONFIG_WIFI_DISPLAY
3607 if (dev->info.wfd_subelems) {
3608 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3609 if (res < 0 || res >= end - pos)
3610 return pos - buf;
3611 pos += res;
3612
3613 pos += wpa_snprintf_hex(pos, end - pos,
3614 wpabuf_head(dev->info.wfd_subelems),
3615 wpabuf_len(dev->info.wfd_subelems));
3616
3617 res = os_snprintf(pos, end - pos, "\n");
3618 if (res < 0 || res >= end - pos)
3619 return pos - buf;
3620 pos += res;
3621 }
3622#endif /* CONFIG_WIFI_DISPLAY */
3623
b22128ef
JM		 3624 return pos - buf;
3625}
3626
3627
b3bcc0f5
JM		 3628int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3629{
3630 return p2p_get_device(p2p, addr) != NULL;
3631}
3632
3633
b22128ef
JM		 3634void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3635{
3636 if (enabled) {
ed496f13 3637 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 3638 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3639 } else {
ed496f13 3640 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 3641 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3642 }
3643}
3644
3645
3646static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3647 u32 duration2, u32 interval2)
3648{
3649 struct wpabuf *req;
3650 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3651 u8 *len;
3652
3653 req = wpabuf_alloc(100);
3654 if (req == NULL)
3655 return NULL;
3656
3657 if (duration1 || interval1) {
3658 os_memset(&desc1, 0, sizeof(desc1));
3659 desc1.count_type = 1;
3660 desc1.duration = duration1;
3661 desc1.interval = interval1;
3662 ptr1 = &desc1;
3663
3664 if (duration2 || interval2) {
3665 os_memset(&desc2, 0, sizeof(desc2));
3666 desc2.count_type = 2;
3667 desc2.duration = duration2;
3668 desc2.interval = interval2;
3669 ptr2 = &desc2;
3670 }
3671 }
3672
3673 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3674 len = p2p_buf_add_ie_hdr(req);
3675 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3676 p2p_buf_update_ie_hdr(req, len);
3677
3678 return req;
3679}
3680
3681
3682int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3683 const u8 *own_interface_addr, unsigned int freq,
3684 u32 duration1, u32 interval1, u32 duration2,
3685 u32 interval2)
3686{
3687 struct wpabuf *req;
3688
ed496f13
JM		 3689 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
3690 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
3691 "dur2=%u int2=%u",
b22128ef
JM		 3692 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3693 freq, duration1, interval1, duration2, interval2);
3694
3695 req = p2p_build_presence_req(duration1, interval1, duration2,
3696 interval2);
3697 if (req == NULL)
3698 return -1;
3699
3700 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3701 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3702 go_interface_addr,
3703 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 3704 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3705 }
3706 wpabuf_free(req);
3707
3708 return 0;
3709}
3710
3711
3712static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3713 size_t noa_len, u8 dialog_token)
3714{
3715 struct wpabuf *resp;
3716 u8 *len;
3717
3718 resp = wpabuf_alloc(100 + noa_len);
3719 if (resp == NULL)
3720 return NULL;
3721
3722 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3723 len = p2p_buf_add_ie_hdr(resp);
3724 p2p_buf_add_status(resp, status);
3725 if (noa) {
3726 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3727 wpabuf_put_le16(resp, noa_len);
3728 wpabuf_put_data(resp, noa, noa_len);
3729 } else
3730 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3731 p2p_buf_update_ie_hdr(resp, len);
3732
3733 return resp;
3734}
3735
3736
3737static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3738 const u8 *sa, const u8 *data, size_t len,
3739 int rx_freq)
3740{
3741 struct p2p_message msg;
3742 u8 status;
3743 struct wpabuf *resp;
3744 size_t g;
3745 struct p2p_group *group = NULL;
3746 int parsed = 0;
3747 u8 noa[50];
3748 int noa_len;
3749
ed496f13 3750 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 3751
3752 for (g = 0; g < p2p->num_groups; g++) {
3753 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3754 ETH_ALEN) == 0) {
3755 group = p2p->groups[g];
3756 break;
3757 }
3758 }
3759 if (group == NULL) {
ed496f13 3760 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 3761 MACSTR, MAC2STR(da));
3762 return;
3763 }
3764
3765 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3766 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 3767 status = P2P_SC_FAIL_INVALID_PARAMS;
3768 goto fail;
3769 }
3770 parsed = 1;
3771
3772 if (msg.noa == NULL) {
ed496f13 3773 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 3774 status = P2P_SC_FAIL_INVALID_PARAMS;
3775 goto fail;
3776 }
3777
3778 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3779
3780fail:
3781 if (p2p->cfg->get_noa)
3782 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3783 sizeof(noa));
3784 else
3785 noa_len = -1;
3786 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3787 noa_len > 0 ? noa_len : 0,
3788 msg.dialog_token);
3789 if (parsed)
3790 p2p_parse_free(&msg);
3791 if (resp == NULL)
3792 return;
3793
3794 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3795 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3796 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 3797 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3798 }
3799 wpabuf_free(resp);
3800}
3801
3802
3803static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3804 const u8 *sa, const u8 *data, size_t len)
3805{
3806 struct p2p_message msg;
3807
ed496f13 3808 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 3809
3810 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3811 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 3812 return;
3813 }
3814
3815 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 3816 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 3817 p2p_parse_free(&msg);
3818 return;
3819 }
3820
c64e3a08
JM		 3821 if (p2p->cfg->presence_resp) {
3822 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
3823 msg.noa, msg.noa_len);
3824 }
3825
b22128ef 3826 if (*msg.status) {
ed496f13 3827 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 3828 *msg.status);
3829 p2p_parse_free(&msg);
3830 return;
3831 }
3832
ed496f13 3833 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 3834 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3835 msg.noa, msg.noa_len);
3836 /* TODO: process NoA */
3837 p2p_parse_free(&msg);
3838}
3839
3840
3841static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3842{
3843 struct p2p_data *p2p = eloop_ctx;
3844
3845 if (p2p->ext_listen_interval) {
3846 /* Schedule next extended listen timeout */
3847 eloop_register_timeout(p2p->ext_listen_interval_sec,
3848 p2p->ext_listen_interval_usec,
3849 p2p_ext_listen_timeout, p2p, NULL);
3850 }
3851
f7a69057
JM		 3852 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3853 /*
3854 * This should not really happen, but it looks like the Listen
3855 * command may fail is something else (e.g., a scan) was
3856 * running at an inconvenient time. As a workaround, allow new
3857 * Extended Listen operation to be started.
3858 */
ed496f13 3859 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 3860 p2p->ext_listen_only = 0;
3861 p2p_set_state(p2p, P2P_IDLE);
3862 }
3863
b22128ef 3864 if (p2p->state != P2P_IDLE) {
ed496f13 3865 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3866 return;
3867 }
3868
ed496f13 3869 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 3870 p2p->ext_listen_only = 1;
3871 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 3872 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 3873 p2p->ext_listen_only = 0;
3874 }
3875}
3876
3877
3878int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3879 unsigned int interval)
3880{
3881 if (period > 65535 || interval > 65535 || period > interval ||
3882 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 3883 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
3884 period, interval);
b22128ef
JM		 3885 return -1;
3886 }
3887
3888 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3889
3890 if (interval == 0) {
ed496f13 3891 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 3892 p2p->ext_listen_period = 0;
3893 p2p->ext_listen_interval = 0;
3894 return 0;
3895 }
3896
ed496f13
JM		 3897 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
3898 period, interval);
b22128ef
JM		 3899 p2p->ext_listen_period = period;
3900 p2p->ext_listen_interval = interval;
3901 p2p->ext_listen_interval_sec = interval / 1000;
3902 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3903
3904 eloop_register_timeout(p2p->ext_listen_interval_sec,
3905 p2p->ext_listen_interval_usec,
3906 p2p_ext_listen_timeout, p2p, NULL);
3907
3908 return 0;
3909}
3910
3911
3912void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3913 const u8 *ie, size_t ie_len)
3914{
3915 struct p2p_message msg;
3916
3917 if (bssid == NULL || ie == NULL)
3918 return;
3919
3920 os_memset(&msg, 0, sizeof(msg));
3921 if (p2p_parse_ies(ie, ie_len, &msg))
3922 return;
04c366cb
EL		 3923 if (msg.minor_reason_code == NULL) {
3924 p2p_parse_free(&msg);
b22128ef 3925 return;
04c366cb 3926 }
b22128ef 3927
ed496f13 3928 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 3929 " reason_code=%u minor_reason_code=%u",
3930 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3931
3932 p2p_parse_free(&msg);
3933}
3934
3935
3936void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3937 const u8 *ie, size_t ie_len)
3938{
3939 struct p2p_message msg;
3940
3941 if (bssid == NULL || ie == NULL)
3942 return;
3943
3944 os_memset(&msg, 0, sizeof(msg));
3945 if (p2p_parse_ies(ie, ie_len, &msg))
3946 return;
04c366cb
EL		 3947 if (msg.minor_reason_code == NULL) {
3948 p2p_parse_free(&msg);
b22128ef 3949 return;
04c366cb 3950 }
b22128ef 3951
ed496f13 3952 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 3953 " reason_code=%u minor_reason_code=%u",
3954 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3955
3956 p2p_parse_free(&msg);
3957}
3958
3959
3960void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3961{
3962 if (enabled) {
ed496f13 3963 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 3964 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3965 } else {
ed496f13 3966 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 3967 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3968 }
3969}
3970
3971
3972int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3973{
9ccd9165 3974 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 3975 return -1;
3976
ed496f13
JM		 3977 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
3978 reg_class, channel);
b22128ef
JM		 3979 p2p->cfg->reg_class = reg_class;
3980 p2p->cfg->channel = channel;
3981
3982 return 0;
3983}
3984
3985
3986int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3987{
ed496f13 3988 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 3989 if (postfix == NULL) {
3990 p2p->cfg->ssid_postfix_len = 0;
3991 return 0;
3992 }
3993 if (len > sizeof(p2p->cfg->ssid_postfix))
3994 return -1;
3995 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3996 p2p->cfg->ssid_postfix_len = len;
3997 return 0;
3998}
3999
4000
2463ba70
JS		 4001int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
4002 int cfg_op_channel)
4003{
9ccd9165 4004 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 4005 return -1;
4006
ed496f13
JM		 4007 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
4008 op_reg_class, op_channel);
2463ba70
JS		 4009 p2p->cfg->op_reg_class = op_reg_class;
4010 p2p->cfg->op_channel = op_channel;
4011 p2p->cfg->cfg_op_channel = cfg_op_channel;
4012 return 0;
4013}
4014
4015
21d996f7
JM		 4016int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
4017 const struct p2p_channel *pref_chan)
4018{
4019 struct p2p_channel *n;
4020
4021 if (pref_chan) {
4022 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
4023 if (n == NULL)
4024 return -1;
4025 os_memcpy(n, pref_chan,
4026 num_pref_chan * sizeof(struct p2p_channel));
4027 } else
4028 n = NULL;
4029
4030 os_free(p2p->cfg->pref_chan);
4031 p2p->cfg->pref_chan = n;
4032 p2p->cfg->num_pref_chan = num_pref_chan;
4033
4034 return 0;
4035}
4036
4037
556b30da
JM		 4038int p2p_set_no_go_freq(struct p2p_data *p2p,
4039 const struct wpa_freq_range_list *list)
4040{
4041 struct wpa_freq_range *tmp;
4042
4043 if (list == NULL || list->num == 0) {
4044 os_free(p2p->no_go_freq.range);
4045 p2p->no_go_freq.range = NULL;
4046 p2p->no_go_freq.num = 0;
4047 return 0;
4048 }
4049
4050 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
4051 if (tmp == NULL)
4052 return -1;
4053 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
4054 os_free(p2p->no_go_freq.range);
4055 p2p->no_go_freq.range = tmp;
4056 p2p->no_go_freq.num = list->num;
4057 p2p_dbg(p2p, "Updated no GO chan list");
4058
4059 return 0;
4060}
4061
4062
b22128ef
JM		 4063int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4064 u8 *iface_addr)
4065{
4066 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4067 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4068 return -1;
4069 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4070 return 0;
4071}
80c9582a
JM		 4072
4073
4147a2cc
JM		 4074int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4075 u8 *dev_addr)
4076{
4077 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4078 if (dev == NULL)
4079 return -1;
c5db8e51 4080 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4081 return 0;
4082}
4083
4084
80c9582a
JM		 4085void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4086{
4087 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4088 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 4089 p2p_dbg(p2p, "Disable peer filter");
80c9582a 4090 else
ed496f13
JM		 4091 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4092 MAC2STR(p2p->peer_filter));
80c9582a 4093}
72044390
JM		 4094
4095
4096void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4097{
ed496f13 4098 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 4099 if (p2p->cross_connect == enabled)
4100 return;
4101 p2p->cross_connect = enabled;
4102 /* TODO: may need to tear down any action group where we are GO(?) */
4103}
f8d0131a
JM		 4104
4105
4106int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4107{
4108 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4109 if (dev == NULL)
4110 return -1;
4111 if (dev->oper_freq <= 0)
4112 return -1;
4113 return dev->oper_freq;
4114}
0f66abd2
SS		 4115
4116
4117void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4118{
ed496f13 4119 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 4120 enabled ? "enabled" : "disabled");
4121 p2p->cfg->p2p_intra_bss = enabled;
4122}
b5c9da8d
JM		 4123
4124
51e9f228
JM		 4125void p2p_update_channel_list(struct p2p_data *p2p,
4126 const struct p2p_channels *chan,
4127 const struct p2p_channels *cli_chan)
b5c9da8d 4128{
ed496f13 4129 p2p_dbg(p2p, "Update channel list");
b5c9da8d 4130 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
51e9f228
JM		 4131 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4132 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4133 sizeof(struct p2p_channels));
4134 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
b5c9da8d 4135}
3f9285ff
JM		 4136
4137
4138int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4139 const u8 *src, const u8 *bssid, const u8 *buf,
4140 size_t len, unsigned int wait_time)
4141{
4142 if (p2p->p2p_scan_running) {
ed496f13 4143 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
3f9285ff 4144 if (p2p->after_scan_tx) {
ed496f13 4145 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
3f9285ff
JM		 4146 os_free(p2p->after_scan_tx);
4147 }
4148 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4149 len);
4150 if (p2p->after_scan_tx == NULL)
4151 return -1;
4152 p2p->after_scan_tx->freq = freq;
4153 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4154 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4155 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4156 p2p->after_scan_tx->len = len;
4157 p2p->after_scan_tx->wait_time = wait_time;
4158 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4159 return 0;
4160 }
4161
4162 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4163 buf, len, wait_time);
4164}
7cfc4ac3
AGS		 4165
4166
4167void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4168 int freq_overall)
4169{
ed496f13
JM		 4170 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4171 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4172 p2p->best_freq_24 = freq_24;
4173 p2p->best_freq_5 = freq_5;
4174 p2p->best_freq_overall = freq_overall;
4175}
231bbd03
SS		 4176
4177
6cb27aa8
JM		 4178void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4179{
ed496f13 4180 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4181 p2p->own_freq_preference = freq;
4182}
4183
4184
231bbd03
SS		 4185const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4186{
4187 if (p2p == NULL || p2p->go_neg_peer == NULL)
4188 return NULL;
c5db8e51 4189 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4190}
c165d81e
JB		 4191
4192
4193const struct p2p_peer_info *
4194p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4195{
4196 struct p2p_device *dev;
4197
4198 if (addr) {
4199 dev = p2p_get_device(p2p, addr);
4200 if (!dev)
4201 return NULL;
4202
4203 if (!next) {
4204 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4205 return NULL;
4206
4207 return &dev->info;
4208 } else {
4209 do {
4210 dev = dl_list_first(&dev->list,
4211 struct p2p_device,
4212 list);
0bceb8d6 4213 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4214 return NULL;
4215 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4216 }
4217 } else {
4218 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4219 if (!dev)
4220 return NULL;
4221 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4222 dev = dl_list_first(&dev->list,
4223 struct p2p_device,
4224 list);
0bceb8d6 4225 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4226 return NULL;
4227 }
4228 }
4229
4230 return &dev->info;
4231}
303f60d3
JM		 4232
4233
4234int p2p_in_progress(struct p2p_data *p2p)
4235{
4236 if (p2p == NULL)
4237 return 0;
1b5d4714 4238 if (p2p->state == P2P_SEARCH)
99fcd404 4239 return 2;
fc6997b3 4240 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4241}
4f219667
JM		 4242
4243
4244void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4245 u8 client_timeout)
4246{
4247 if (p2p) {
4248 p2p->go_timeout = go_timeout;
4249 p2p->client_timeout = client_timeout;
4250 }
4251}
99fcd404
JM		 4252
4253
9675ce35
JM		 4254#ifdef CONFIG_WIFI_DISPLAY
4255
4256static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4257{
4258 size_t g;
4259 struct p2p_group *group;
4260
4261 for (g = 0; g < p2p->num_groups; g++) {
4262 group = p2p->groups[g];
3342c263 4263 p2p_group_force_beacon_update_ies(group);
9675ce35
JM		 4264 }
4265}
4266
4267
4268int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4269{
4270 wpabuf_free(p2p->wfd_ie_beacon);
4271 p2p->wfd_ie_beacon = ie;
4272 p2p_update_wfd_ie_groups(p2p);
4273 return 0;
4274}
4275
4276
4277int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4278{
4279 wpabuf_free(p2p->wfd_ie_probe_req);
4280 p2p->wfd_ie_probe_req = ie;
4281 return 0;
4282}
4283
4284
4285int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4286{
4287 wpabuf_free(p2p->wfd_ie_probe_resp);
4288 p2p->wfd_ie_probe_resp = ie;
4289 p2p_update_wfd_ie_groups(p2p);
4290 return 0;
4291}
4292
4293
4294int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4295{
4296 wpabuf_free(p2p->wfd_ie_assoc_req);
4297 p2p->wfd_ie_assoc_req = ie;
4298 return 0;
4299}
4300
4301
4302int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4303{
4304 wpabuf_free(p2p->wfd_ie_invitation);
4305 p2p->wfd_ie_invitation = ie;
4306 return 0;
4307}
4308
4309
4310int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4311{
4312 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4313 p2p->wfd_ie_prov_disc_req = ie;
4314 return 0;
4315}
4316
4317
4318int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4319{
4320 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4321 p2p->wfd_ie_prov_disc_resp = ie;
4322 return 0;
4323}
4324
4325
4326int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4327{
4328 wpabuf_free(p2p->wfd_ie_go_neg);
4329 p2p->wfd_ie_go_neg = ie;
4330 return 0;
4331}
4332
4333
4334int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4335{
4336 wpabuf_free(p2p->wfd_dev_info);
4337 if (elem) {
4338 p2p->wfd_dev_info = wpabuf_dup(elem);
4339 if (p2p->wfd_dev_info == NULL)
4340 return -1;
4341 } else
4342 p2p->wfd_dev_info = NULL;
4343
4344 return 0;
4345}
4346
4347
4348int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4349{
4350 wpabuf_free(p2p->wfd_assoc_bssid);
4351 if (elem) {
4352 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4353 if (p2p->wfd_assoc_bssid == NULL)
4354 return -1;
4355 } else
4356 p2p->wfd_assoc_bssid = NULL;
4357
4358 return 0;
4359}
4360
4361
4362int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4363 const struct wpabuf *elem)
4364{
4365 wpabuf_free(p2p->wfd_coupled_sink_info);
4366 if (elem) {
4367 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4368 if (p2p->wfd_coupled_sink_info == NULL)
4369 return -1;
4370 } else
4371 p2p->wfd_coupled_sink_info = NULL;
4372
4373 return 0;
4374}
4375
4376#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4377
4378
4379int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4380 int max_disc_tu)
4381{
4382 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4383 return -1;
4384
4385 p2p->min_disc_int = min_disc_int;
4386 p2p->max_disc_int = max_disc_int;
4387 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 4388 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4389 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 4390
4391 return 0;
4392}
ed496f13
JM		 4393
4394
4395void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4396{
4397 va_list ap;
4398 char buf[500];
4399
4400 if (!p2p->cfg->debug_print)
4401 return;
4402
4403 va_start(ap, fmt);
4404 vsnprintf(buf, sizeof(buf), fmt, ap);
4405 buf[sizeof(buf) - 1] = '\0';
4406 va_end(ap);
4407 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4408}
4409
4410
4411void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4412{
4413 va_list ap;
4414 char buf[500];
4415
4416 if (!p2p->cfg->debug_print)
4417 return;
4418
4419 va_start(ap, fmt);
4420 vsnprintf(buf, sizeof(buf), fmt, ap);
4421 buf[sizeof(buf) - 1] = '\0';
4422 va_end(ap);
4423 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4424}
4425
4426
4427void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4428{
4429 va_list ap;
4430 char buf[500];
4431
4432 if (!p2p->cfg->debug_print)
4433 return;
4434
4435 va_start(ap, fmt);
4436 vsnprintf(buf, sizeof(buf), fmt, ap);
4437 buf[sizeof(buf) - 1] = '\0';
4438 va_end(ap);
4439 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4440}
93588780
JM		 4441
4442
4443#ifdef CONFIG_WPS_NFC
4444
59b45d1a 4445static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
abe44e3c
JM		 4446 int client_freq,
4447 const u8 *go_dev_addr,
4448 const u8 *ssid, size_t ssid_len)
93588780
JM		 4449{
4450 struct wpabuf *buf;
4451 u8 op_class, channel;
4452 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
4453
4454 buf = wpabuf_alloc(1000);
4455 if (buf == NULL)
4456 return NULL;
4457
4458 op_class = p2p->cfg->reg_class;
4459 channel = p2p->cfg->channel;
4460
4461 p2p_buf_add_capability(buf, p2p->dev_capab &
4462 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
4463 p2p_buf_add_device_info(buf, p2p, NULL);
4464
4465 if (p2p->num_groups > 0) {
d06e9ac5 4466 int freq = p2p_group_get_freq(p2p->groups[0]);
93588780 4467 role = P2P_GO_IN_A_GROUP;
d06e9ac5
JM		 4468 if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
4469 p2p_dbg(p2p,
4470 "Unknown GO operating frequency %d MHz for NFC handover",
4471 freq);
4472 wpabuf_free(buf);
4473 return NULL;
4474 }
59b45d1a
JM		 4475 } else if (client_freq > 0) {
4476 role = P2P_CLIENT_IN_A_GROUP;
d06e9ac5
JM		 4477 if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
4478 p2p_dbg(p2p,
4479 "Unknown client operating frequency %d MHz for NFC handover",
4480 client_freq);
4481 wpabuf_free(buf);
4482 return NULL;
4483 }
93588780
JM		 4484 }
4485
4486 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
4487 channel, role);
4488
4489 if (p2p->num_groups > 0) {
4490 /* Limit number of clients to avoid very long message */
4491 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
4492 p2p_group_buf_add_id(p2p->groups[0], buf);
abe44e3c
JM		 4493 } else if (client_freq > 0 &&
4494 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
4495 ssid && ssid_len > 0) {
4496 /*
4497 * Add the optional P2P Group ID to indicate in which group this
4498 * device is a P2P Client.
4499 */
4500 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
93588780
JM		 4501 }
4502
4503 return buf;
4504}
4505
4506
59b45d1a 4507struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
abe44e3c
JM		 4508 int client_freq,
4509 const u8 *go_dev_addr,
4510 const u8 *ssid, size_t ssid_len)
93588780 4511{
abe44e3c
JM		 4512 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4513 ssid_len);
93588780
JM		 4514}
4515
4516
59b45d1a 4517struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
abe44e3c
JM		 4518 int client_freq,
4519 const u8 *go_dev_addr,
4520 const u8 *ssid, size_t ssid_len)
93588780 4521{
abe44e3c
JM		 4522 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4523 ssid_len);
93588780
JM		 4524}
4525
db6ae69e
JM		 4526
4527int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
4528 struct p2p_nfc_params *params)
4529{
4530 struct p2p_message msg;
4531 struct p2p_device *dev;
4532 const u8 *p2p_dev_addr;
59b45d1a
JM		 4533 int freq;
4534 enum p2p_role_indication role;
db6ae69e
JM		 4535
4536 params->next_step = NO_ACTION;
4537
4538 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
4539 params->p2p_attr, params->p2p_len, &msg)) {
4540 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
4541 p2p_parse_free(&msg);
4542 return -1;
4543 }
4544
4545 if (msg.p2p_device_addr)
4546 p2p_dev_addr = msg.p2p_device_addr;
4547 else if (msg.device_id)
4548 p2p_dev_addr = msg.device_id;
4549 else {
4550 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
4551 p2p_parse_free(&msg);
4552 return -1;
4553 }
4554
4555 if (msg.oob_dev_password) {
4556 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
4557 msg.oob_dev_password_len);
4558 params->oob_dev_pw_len = msg.oob_dev_password_len;
4559 }
4560
4561 dev = p2p_create_device(p2p, p2p_dev_addr);
4562 if (dev == NULL) {
4563 p2p_parse_free(&msg);
4564 return -1;
4565 }
4566
4567 params->peer = &dev->info;
4568
4569 os_get_reltime(&dev->last_seen);
4570 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
4571 p2p_copy_wps_info(p2p, dev, 0, &msg);
4572
59b45d1a
JM		 4573 if (!msg.oob_go_neg_channel) {
4574 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
4575 return -1;
4576 }
db6ae69e 4577
59b45d1a
JM		 4578 if (msg.oob_go_neg_channel[3] == 0 &&
4579 msg.oob_go_neg_channel[4] == 0)
4580 freq = 0;
4581 else
4582 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
4583 msg.oob_go_neg_channel[4]);
4584 if (freq < 0) {
4585 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
4586 return -1;
59b45d1a 4587 }
23318bea 4588 role = msg.oob_go_neg_channel[5];
db6ae69e 4589
23318bea
JM		 4590 if (role == P2P_GO_IN_A_GROUP) {
4591 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
4592 params->go_freq = freq;
abe44e3c
JM		 4593 } else if (role == P2P_CLIENT_IN_A_GROUP) {
4594 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
4595 freq);
4596 params->go_freq = freq;
23318bea
JM		 4597 } else
4598 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
4599 dev->oob_go_neg_freq = freq;
4600
4601 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
59b45d1a
JM		 4602 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
4603 p2p->cfg->channel);
4604 if (freq < 0) {
4605 p2p_dbg(p2p, "Own listen channel not known");
4606 return -1;
4607 }
4608 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
4609 dev->oob_go_neg_freq = freq;
db6ae69e
JM		 4610 }
4611
23318bea
JM		 4612 if (msg.group_id) {
4613 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
4614 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
4615 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
4616 params->go_ssid_len);
4617 }
59b45d1a 4618
db6ae69e
JM		 4619 p2p_parse_free(&msg);
4620
4621 if (dev->flags & P2P_DEV_USER_REJECTED) {
4622 p2p_dbg(p2p, "Do not report rejected device");
4623 return 0;
4624 }
4625
4626 if (!(dev->flags & P2P_DEV_REPORTED)) {
4627 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
4628 !(dev->flags & P2P_DEV_REPORTED_ONCE));
4629 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
4630 }
4631
59b45d1a 4632 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
74df9ecd 4633 params->next_step = BOTH_GO;
59b45d1a 4634 else if (role == P2P_GO_IN_A_GROUP)
db6ae69e 4635 params->next_step = JOIN_GROUP;
59b45d1a
JM		 4636 else if (role == P2P_CLIENT_IN_A_GROUP) {
4637 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
4638 params->next_step = PEER_CLIENT;
4639 } else if (p2p->num_groups > 0)
db6ae69e
JM		 4640 params->next_step = AUTH_JOIN;
4641 else if (params->sel)
4642 params->next_step = INIT_GO_NEG;
4643 else
4644 params->next_step = RESP_GO_NEG;
4645
4646 return 0;
4647}
4648
c4f87a70
JM		 4649
4650void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
4651 int go_intent,
4652 const u8 *own_interface_addr)
4653{
4654
4655 p2p->authorized_oob_dev_pw_id = dev_pw_id;
4656 if (dev_pw_id == 0) {
4657 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
4658 return;
4659 }
4660
4661 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
4662 dev_pw_id);
4663
4664 p2p->go_intent = go_intent;
4665 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
4666}
4667
93588780 4668#endif /* CONFIG_WPS_NFC */
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