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tests: Force GO to have an old entry in test_p2p_go_invite
[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 */
44#define P2P_PEER_EXPIRATION_AGE 300
45
46#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
47
48static void p2p_expire_peers(struct p2p_data *p2p)
49{
50 struct p2p_device *dev, *n;
51 struct os_time now;
1d277f02 52 size_t i;
b22128ef
JM		 53
54 os_get_time(&now);
55 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
56 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
57 continue;
b1aebbc4
JM		 58
59 if (p2p->cfg->go_connected &&
60 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
61 dev->info.p2p_device_addr)) {
62 /*
63 * We are connected as a client to a group in which the
64 * peer is the GO, so do not expire the peer entry.
65 */
66 os_get_time(&dev->last_seen);
67 continue;
68 }
69
1d277f02
JM		 70 for (i = 0; i < p2p->num_groups; i++) {
71 if (p2p_group_is_client_connected(
72 p2p->groups[i], dev->info.p2p_device_addr))
73 break;
74 }
75 if (i < p2p->num_groups) {
76 /*
77 * The peer is connected as a client in a group where
78 * we are the GO, so do not expire the peer entry.
79 */
80 os_get_time(&dev->last_seen);
81 continue;
82 }
83
ed496f13
JM		 84 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
85 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 86 dl_list_del(&dev->list);
87 p2p_device_free(p2p, dev);
88 }
89}
90
91
92static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
93{
94 struct p2p_data *p2p = eloop_ctx;
95 p2p_expire_peers(p2p);
96 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
97 p2p_expiration_timeout, p2p, NULL);
98}
99
100
101static const char * p2p_state_txt(int state)
102{
103 switch (state) {
104 case P2P_IDLE:
105 return "IDLE";
106 case P2P_SEARCH:
107 return "SEARCH";
108 case P2P_CONNECT:
109 return "CONNECT";
110 case P2P_CONNECT_LISTEN:
111 return "CONNECT_LISTEN";
112 case P2P_GO_NEG:
113 return "GO_NEG";
114 case P2P_LISTEN_ONLY:
115 return "LISTEN_ONLY";
116 case P2P_WAIT_PEER_CONNECT:
117 return "WAIT_PEER_CONNECT";
118 case P2P_WAIT_PEER_IDLE:
119 return "WAIT_PEER_IDLE";
120 case P2P_SD_DURING_FIND:
121 return "SD_DURING_FIND";
122 case P2P_PROVISIONING:
123 return "PROVISIONING";
124 case P2P_PD_DURING_FIND:
125 return "PD_DURING_FIND";
126 case P2P_INVITE:
127 return "INVITE";
128 case P2P_INVITE_LISTEN:
129 return "INVITE_LISTEN";
39185dfa
JM		 130 case P2P_SEARCH_WHEN_READY:
131 return "SEARCH_WHEN_READY";
99fcd404
JM		 132 case P2P_CONTINUE_SEARCH_WHEN_READY:
133 return "CONTINUE_SEARCH_WHEN_READY";
b22128ef
JM		 134 default:
135 return "?";
136 }
137}
138
139
4c559019
JM		 140const char * p2p_get_state_txt(struct p2p_data *p2p)
141{
142 return p2p_state_txt(p2p->state);
143}
144
145
ec437d9e
JJ		 146u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
147{
148 struct p2p_device *dev = NULL;
149
150 if (!addr || !p2p)
151 return 0;
152
153 dev = p2p_get_device(p2p, addr);
154 if (dev)
155 return dev->wps_prov_info;
156 else
157 return 0;
158}
159
160
10531d21 161void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 162{
163 struct p2p_device *dev = NULL;
164
10531d21 165 if (!addr || !p2p)
ec437d9e
JJ		 166 return;
167
10531d21 168 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 169 if (dev)
170 dev->wps_prov_info = 0;
171}
172
173
b22128ef
JM		 174void p2p_set_state(struct p2p_data *p2p, int new_state)
175{
ed496f13 176 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 177 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
178 p2p->state = new_state;
179}
180
181
182void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
183{
ed496f13 184 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 185 p2p_state_txt(p2p->state), sec, usec);
186 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
187 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
188}
189
190
191void p2p_clear_timeout(struct p2p_data *p2p)
192{
ed496f13 193 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 194 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
195}
196
197
198void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
199 int status)
200{
201 struct p2p_go_neg_results res;
202 p2p_clear_timeout(p2p);
203 p2p_set_state(p2p, P2P_IDLE);
fb8984fd
JM		 204 if (p2p->go_neg_peer) {
205 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
eb916eb8 206 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
fb8984fd 207 }
b22128ef
JM		 208 p2p->go_neg_peer = NULL;
209
210 os_memset(&res, 0, sizeof(res));
211 res.status = status;
212 if (peer) {
c5db8e51 213 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 214 ETH_ALEN);
215 os_memcpy(res.peer_interface_addr, peer->intended_addr,
216 ETH_ALEN);
217 }
218 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
219}
220
221
96beff11 222static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 223{
224 unsigned int r, tu;
225 int freq;
226 struct wpabuf *ies;
227
ed496f13 228 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 229 p2p_state_txt(p2p->state));
230
9ccd9165 231 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 232 if (freq < 0) {
ed496f13 233 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 234 return;
235 }
236
237 os_get_random((u8 *) &r, sizeof(r));
238 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
239 p2p->min_disc_int) * 100;
96beff11
JM		 240 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
241 tu = p2p->max_disc_tu;
242 if (!dev_disc && tu < 100)
243 tu = 100; /* Need to wait in non-device discovery use cases */
244 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
245 tu = p2p->cfg->max_listen * 1000 / 1024;
246
247 if (tu == 0) {
ed496f13 248 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 249 p2p_set_timeout(p2p, 0, 0);
250 return;
251 }
b22128ef
JM		 252
253 p2p->pending_listen_freq = freq;
254 p2p->pending_listen_sec = 0;
255 p2p->pending_listen_usec = 1024 * tu;
256
257 ies = p2p_build_probe_resp_ies(p2p);
258 if (ies == NULL)
259 return;
260
261 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
262 ies) < 0) {
ed496f13 263 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 264 p2p->pending_listen_freq = 0;
265 }
266 wpabuf_free(ies);
267}
268
269
270int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
271{
272 int freq;
273 struct wpabuf *ies;
274
ed496f13 275 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 276
9ccd9165 277 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 278 if (freq < 0) {
ed496f13 279 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 280 return -1;
281 }
282
283 p2p->pending_listen_freq = freq;
284 p2p->pending_listen_sec = timeout / 1000;
285 p2p->pending_listen_usec = (timeout % 1000) * 1000;
286
287 if (p2p->p2p_scan_running) {
5b9cecaf 288 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 289 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 290 return 0;
291 }
ed496f13 292 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 293 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
294 return 0;
295 }
296
297 ies = p2p_build_probe_resp_ies(p2p);
298 if (ies == NULL)
299 return -1;
300
301 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 302 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 303 p2p->pending_listen_freq = 0;
304 wpabuf_free(ies);
305 return -1;
306 }
307 wpabuf_free(ies);
308
309 p2p_set_state(p2p, P2P_LISTEN_ONLY);
310
311 return 0;
312}
313
314
315static void p2p_device_clear_reported(struct p2p_data *p2p)
316{
317 struct p2p_device *dev;
318 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
319 dev->flags &= ~P2P_DEV_REPORTED;
320}
321
322
323/**
324 * p2p_get_device - Fetch a peer entry
325 * @p2p: P2P module context from p2p_init()
326 * @addr: P2P Device Address of the peer
327 * Returns: Pointer to the device entry or %NULL if not found
328 */
329struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
330{
331 struct p2p_device *dev;
332 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 333 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 334 return dev;
335 }
336 return NULL;
337}
338
339
340/**
341 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
342 * @p2p: P2P module context from p2p_init()
343 * @addr: P2P Interface Address of the peer
344 * Returns: Pointer to the device entry or %NULL if not found
345 */
346struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
347 const u8 *addr)
348{
349 struct p2p_device *dev;
350 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
351 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
352 return dev;
353 }
354 return NULL;
355}
356
357
358/**
359 * p2p_create_device - Create a peer entry
360 * @p2p: P2P module context from p2p_init()
361 * @addr: P2P Device Address of the peer
362 * Returns: Pointer to the device entry or %NULL on failure
363 *
364 * If there is already an entry for the peer, it will be returned instead of
365 * creating a new one.
366 */
367static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
368 const u8 *addr)
369{
370 struct p2p_device *dev, *oldest = NULL;
371 size_t count = 0;
372
373 dev = p2p_get_device(p2p, addr);
374 if (dev)
375 return dev;
376
377 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
378 count++;
379 if (oldest == NULL ||
380 os_time_before(&dev->last_seen, &oldest->last_seen))
381 oldest = dev;
382 }
383 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 384 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 385 dl_list_del(&oldest->list);
386 p2p_device_free(p2p, oldest);
387 }
388
389 dev = os_zalloc(sizeof(*dev));
390 if (dev == NULL)
391 return NULL;
392 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 393 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 394
395 return dev;
396}
397
398
399static void p2p_copy_client_info(struct p2p_device *dev,
400 struct p2p_client_info *cli)
401{
c5db8e51
KRK		 402 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
403 dev->info.device_name[cli->dev_name_len] = '\0';
404 dev->info.dev_capab = cli->dev_capab;
405 dev->info.config_methods = cli->config_methods;
406 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 407 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
408 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
409 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 410}
411
412
413static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
414 const u8 *go_interface_addr, int freq,
415 const u8 *gi, size_t gi_len)
416{
417 struct p2p_group_info info;
418 size_t c;
419 struct p2p_device *dev;
420
421 if (gi == NULL)
422 return 0;
423
424 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
425 return -1;
426
427 /*
428 * Clear old data for this group; if the devices are still in the
429 * group, the information will be restored in the loop following this.
430 */
431 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 432 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 433 ETH_ALEN) == 0) {
434 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
435 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
436 }
437 }
438
439 for (c = 0; c < info.num_clients; c++) {
440 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 441 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
442 ETH_ALEN) == 0)
443 continue; /* ignore our own entry */
b22128ef
JM		 444 dev = p2p_get_device(p2p, cli->p2p_device_addr);
445 if (dev) {
b22128ef 446 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 447 P2P_DEV_PROBE_REQ_ONLY)) {
448 /*
449 * Update information since we have not
450 * received this directly from the client.
451 */
b22128ef 452 p2p_copy_client_info(dev, cli);
f33bc035
JM		 453 } else {
454 /*
455 * Need to update P2P Client Discoverability
456 * flag since it is valid only in P2P Group
457 * Info attribute.
458 */
459 dev->info.dev_capab &=
460 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
461 dev->info.dev_capab |=
462 cli->dev_capab &
463 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
464 }
b22128ef
JM		 465 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
466 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
467 }
468 } else {
469 dev = p2p_create_device(p2p, cli->p2p_device_addr);
470 if (dev == NULL)
471 continue;
472 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
473 p2p_copy_client_info(dev, cli);
474 dev->oper_freq = freq;
c5db8e51
KRK		 475 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
476 dev->info.p2p_device_addr,
8fd7dc1b
JB		 477 &dev->info, 1);
478 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 479 }
480
481 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
482 ETH_ALEN);
483 os_get_time(&dev->last_seen);
484 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
485 os_memcpy(dev->member_in_go_iface, go_interface_addr,
486 ETH_ALEN);
487 }
488
489 return 0;
490}
491
492
ed496f13
JM		 493static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
494 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 495{
496 os_memcpy(dev->info.device_name, msg->device_name,
497 sizeof(dev->info.device_name));
498
499 if (msg->manufacturer &&
500 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
501 os_memset(dev->info.manufacturer, 0,
502 sizeof(dev->info.manufacturer));
503 os_memcpy(dev->info.manufacturer, msg->manufacturer,
504 msg->manufacturer_len);
505 }
506
507 if (msg->model_name &&
508 msg->model_name_len < sizeof(dev->info.model_name)) {
509 os_memset(dev->info.model_name, 0,
510 sizeof(dev->info.model_name));
511 os_memcpy(dev->info.model_name, msg->model_name,
512 msg->model_name_len);
513 }
514
515 if (msg->model_number &&
516 msg->model_number_len < sizeof(dev->info.model_number)) {
517 os_memset(dev->info.model_number, 0,
518 sizeof(dev->info.model_number));
519 os_memcpy(dev->info.model_number, msg->model_number,
520 msg->model_number_len);
521 }
522
523 if (msg->serial_number &&
524 msg->serial_number_len < sizeof(dev->info.serial_number)) {
525 os_memset(dev->info.serial_number, 0,
526 sizeof(dev->info.serial_number));
527 os_memcpy(dev->info.serial_number, msg->serial_number,
528 msg->serial_number_len);
529 }
530
531 if (msg->pri_dev_type)
532 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
533 sizeof(dev->info.pri_dev_type));
534 else if (msg->wps_pri_dev_type)
535 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
536 sizeof(dev->info.pri_dev_type));
537
538 if (msg->wps_sec_dev_type_list) {
539 os_memcpy(dev->info.wps_sec_dev_type_list,
540 msg->wps_sec_dev_type_list,
541 msg->wps_sec_dev_type_list_len);
542 dev->info.wps_sec_dev_type_list_len =
543 msg->wps_sec_dev_type_list_len;
544 }
545
546 if (msg->capability) {
f33bc035
JM		 547 /*
548 * P2P Client Discoverability bit is reserved in all frames
549 * that use this function, so do not change its value here.
550 */
551 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
552 dev->info.dev_capab |= msg->capability[0] &
553 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 554 dev->info.group_capab = msg->capability[1];
555 }
556
557 if (msg->ext_listen_timing) {
558 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
559 dev->ext_listen_interval =
560 WPA_GET_LE16(msg->ext_listen_timing + 2);
561 }
562
563 if (!probe_req) {
954ee628
JM		 564 u16 new_config_methods;
565 new_config_methods = msg->config_methods ?
b67d0d9e 566 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 567 if (new_config_methods &&
568 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 569 p2p_dbg(p2p, "Update peer " MACSTR
570 " config_methods 0x%x -> 0x%x",
571 MAC2STR(dev->info.p2p_device_addr),
572 dev->info.config_methods,
573 new_config_methods);
954ee628
JM		 574 dev->info.config_methods = new_config_methods;
575 }
b67d0d9e
JM		 576 }
577}
578
579
b22128ef 580/**
c98b83f2 581 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 582 * @p2p: P2P module context from p2p_init()
583 * @addr: Source address of Beacon or Probe Response frame (may be either
584 * P2P Device Address or P2P Interface Address)
585 * @level: Signal level (signal strength of the received frame from the peer)
586 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 587 * @rx_time: Time when the result was received
b22128ef
JM		 588 * @ies: IEs from the Beacon or Probe Response frame
589 * @ies_len: Length of ies buffer in octets
c98b83f2 590 * @scan_res: Whether this was based on scan results
b22128ef
JM		 591 * Returns: 0 on success, -1 on failure
592 *
593 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 594 * to the peer table. This function can also be used with some other frames
595 * like Provision Discovery Request that contains P2P Capability and P2P Device
596 * Info attributes.
b22128ef 597 */
3dfd0484 598int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
c5f10e80 599 struct os_time *rx_time, int level, const u8 *ies,
3dfd0484 600 size_t ies_len, int scan_res)
b22128ef
JM		 601{
602 struct p2p_device *dev;
603 struct p2p_message msg;
604 const u8 *p2p_dev_addr;
6f2c0607 605 int i;
c5f10e80 606 struct os_time time_now;
b22128ef
JM		 607
608 os_memset(&msg, 0, sizeof(msg));
609 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 610 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 611 p2p_parse_free(&msg);
612 return -1;
613 }
614
615 if (msg.p2p_device_addr)
616 p2p_dev_addr = msg.p2p_device_addr;
617 else if (msg.device_id)
618 p2p_dev_addr = msg.device_id;
619 else {
ed496f13 620 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 621 p2p_parse_free(&msg);
622 return -1;
623 }
624
80c9582a
JM		 625 if (!is_zero_ether_addr(p2p->peer_filter) &&
626 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 627 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
628 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 629 p2p_parse_free(&msg);
80c9582a
JM		 630 return 0;
631 }
632
b22128ef
JM		 633 dev = p2p_create_device(p2p, p2p_dev_addr);
634 if (dev == NULL) {
635 p2p_parse_free(&msg);
636 return -1;
637 }
3dfd0484 638
c5f10e80
JM		 639 if (rx_time == NULL) {
640 os_get_time(&time_now);
641 rx_time = &time_now;
642 }
3dfd0484
YD		 643
644 /*
645 * Update the device entry only if the new peer
646 * entry is newer than the one previously stored.
647 */
c5f10e80
JM		 648 if (dev->last_seen.sec > 0 &&
649 os_time_before(rx_time, &dev->last_seen)) {
ed496f13 650 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
c5f10e80
JM		 651 (unsigned int) rx_time->sec,
652 (unsigned int) rx_time->usec,
653 (unsigned int) dev->last_seen.sec,
654 (unsigned int) dev->last_seen.usec);
f96c1d76 655 p2p_parse_free(&msg);
3dfd0484 656 return -1;
f96c1d76 657 }
3dfd0484 658
c5f10e80 659 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_time));
3dfd0484 660
b22128ef
JM		 661 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
662
663 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
664 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
665 if (msg.ssid &&
666 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
667 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
668 != 0)) {
669 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
670 dev->oper_ssid_len = msg.ssid[1];
671 }
672
673 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
674 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
675 int ds_freq;
676 if (*msg.ds_params == 14)
677 ds_freq = 2484;
678 else
679 ds_freq = 2407 + *msg.ds_params * 5;
680 if (freq != ds_freq) {
ed496f13 681 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 682 freq, ds_freq);
683 freq = ds_freq;
684 }
685 }
686
c98b83f2 687 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 688 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
689 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 690 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
691 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 692 }
c98b83f2
JM		 693 if (scan_res) {
694 dev->listen_freq = freq;
695 if (msg.group_info)
696 dev->oper_freq = freq;
697 }
6402fc43 698 dev->info.level = level;
b22128ef 699
ed496f13 700 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 701
10c5d2a5 702 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 703 wpabuf_free(dev->info.wps_vendor_ext[i]);
704 dev->info.wps_vendor_ext[i] = NULL;
705 }
706
10c5d2a5 707 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 708 if (msg.wps_vendor_ext[i] == NULL)
709 break;
710 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
711 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
712 if (dev->info.wps_vendor_ext[i] == NULL)
713 break;
714 }
715
9675ce35
JM		 716 if (msg.wfd_subelems) {
717 wpabuf_free(dev->info.wfd_subelems);
718 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
719 }
720
c98b83f2
JM		 721 if (scan_res) {
722 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
723 msg.group_info, msg.group_info_len);
724 }
b22128ef
JM		 725
726 p2p_parse_free(&msg);
727
728 if (p2p_pending_sd_req(p2p, dev))
729 dev->flags |= P2P_DEV_SD_SCHEDULE;
730
731 if (dev->flags & P2P_DEV_REPORTED)
732 return 0;
733
ed496f13
JM		 734 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
735 freq, (unsigned int) rx_time->sec,
c5f10e80 736 (unsigned int) rx_time->usec);
b22128ef 737 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 738 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 739 return 0;
740 }
8fd7dc1b 741
8b2b2a70
JM		 742 if (dev->info.config_methods == 0 &&
743 (freq == 2412 || freq == 2437 || freq == 2462)) {
744 /*
745 * If we have only seen a Beacon frame from a GO, we do not yet
746 * know what WPS config methods it supports. Since some
747 * applications use config_methods value from P2P-DEVICE-FOUND
748 * events, postpone reporting this peer until we've fully
749 * discovered its capabilities.
750 *
751 * At least for now, do this only if the peer was detected on
752 * one of the social channels since that peer can be easily be
753 * found again and there are no limitations of having to use
754 * passive scan on this channels, so this can be done through
755 * Probe Response frame that includes the config_methods
756 * information.
757 */
ed496f13
JM		 758 p2p_dbg(p2p, "Do not report peer " MACSTR
759 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 760 return 0;
761 }
762
8fd7dc1b
JB		 763 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
764 !(dev->flags & P2P_DEV_REPORTED_ONCE));
765 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 766
767 return 0;
768}
769
770
771static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
772{
6f2c0607
JMB		 773 int i;
774
5cfda25e
JJ		 775 if (p2p->go_neg_peer == dev) {
776 /*
777 * If GO Negotiation is in progress, report that it has failed.
778 */
779 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 780 p2p->go_neg_peer = NULL;
5cfda25e 781 }
b22128ef
JM		 782 if (p2p->invite_peer == dev)
783 p2p->invite_peer = NULL;
784 if (p2p->sd_peer == dev)
785 p2p->sd_peer = NULL;
786 if (p2p->pending_client_disc_go == dev)
787 p2p->pending_client_disc_go = NULL;
788
f5fc6032
AC		 789 /* dev_lost() device, but only if it was previously dev_found() */
790 if (dev->flags & P2P_DEV_REPORTED_ONCE)
791 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
792 dev->info.p2p_device_addr);
56eeb8f2 793
10c5d2a5 794 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 795 wpabuf_free(dev->info.wps_vendor_ext[i]);
796 dev->info.wps_vendor_ext[i] = NULL;
797 }
798
9675ce35
JM		 799 wpabuf_free(dev->info.wfd_subelems);
800
b22128ef
JM		 801 os_free(dev);
802}
803
804
805static int p2p_get_next_prog_freq(struct p2p_data *p2p)
806{
807 struct p2p_channels *c;
808 struct p2p_reg_class *cla;
809 size_t cl, ch;
810 int found = 0;
811 u8 reg_class;
812 u8 channel;
813 int freq;
814
815 c = &p2p->cfg->channels;
816 for (cl = 0; cl < c->reg_classes; cl++) {
817 cla = &c->reg_class[cl];
818 if (cla->reg_class != p2p->last_prog_scan_class)
819 continue;
820 for (ch = 0; ch < cla->channels; ch++) {
821 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
822 found = 1;
823 break;
824 }
825 }
826 if (found)
827 break;
828 }
829
830 if (!found) {
831 /* Start from beginning */
832 reg_class = c->reg_class[0].reg_class;
833 channel = c->reg_class[0].channel[0];
834 } else {
835 /* Pick the next channel */
836 ch++;
837 if (ch == cla->channels) {
838 cl++;
839 if (cl == c->reg_classes)
840 cl = 0;
841 ch = 0;
842 }
843 reg_class = c->reg_class[cl].reg_class;
844 channel = c->reg_class[cl].channel[ch];
845 }
846
9ccd9165 847 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 848 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 849 reg_class, channel, freq);
850 p2p->last_prog_scan_class = reg_class;
851 p2p->last_prog_scan_chan = channel;
852
853 if (freq == 2412 || freq == 2437 || freq == 2462)
854 return 0; /* No need to add social channels */
855 return freq;
856}
857
858
859static void p2p_search(struct p2p_data *p2p)
860{
861 int freq = 0;
862 enum p2p_scan_type type;
360182ed 863 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 864 int res;
b22128ef
JM		 865
866 if (p2p->drv_in_listen) {
ed496f13 867 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 868 return;
869 }
870 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
871
e6ecfc4f
JB		 872 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
873 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef 874 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 875 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 876 } else {
877 type = P2P_SCAN_SOCIAL;
ed496f13 878 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 879 }
880
99fcd404
JM		 881 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
882 p2p->num_req_dev_types, p2p->req_dev_types,
883 p2p->find_dev_id, pw_id);
884 if (res < 0) {
ed496f13 885 p2p_dbg(p2p, "Scan request failed");
b22128ef 886 p2p_continue_find(p2p);
99fcd404 887 } else if (res == 1) {
ed496f13 888 p2p_dbg(p2p, "Could not start p2p_scan at this point - will try again after previous scan completes");
99fcd404 889 p2p_set_state(p2p, P2P_CONTINUE_SEARCH_WHEN_READY);
40c03fd4 890 } else {
ed496f13 891 p2p_dbg(p2p, "Running p2p_scan");
40c03fd4
JM		 892 p2p->p2p_scan_running = 1;
893 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
894 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
895 p2p, NULL);
b22128ef
JM		 896 }
897}
898
899
900static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
901{
902 struct p2p_data *p2p = eloop_ctx;
ed496f13 903 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 904 p2p_stop_find(p2p);
905}
906
907
908static int p2p_run_after_scan(struct p2p_data *p2p)
909{
910 struct p2p_device *dev;
911 enum p2p_after_scan op;
912
3f9285ff 913 if (p2p->after_scan_tx) {
63a965c3 914 p2p->after_scan_tx_in_progress = 1;
ed496f13 915 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
46eeedac
JM		 916 p2p->cfg->send_action(p2p->cfg->cb_ctx,
917 p2p->after_scan_tx->freq,
918 p2p->after_scan_tx->dst,
919 p2p->after_scan_tx->src,
920 p2p->after_scan_tx->bssid,
921 (u8 *) (p2p->after_scan_tx + 1),
922 p2p->after_scan_tx->len,
923 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 924 os_free(p2p->after_scan_tx);
925 p2p->after_scan_tx = NULL;
926 return 1;
927 }
928
b22128ef
JM		 929 op = p2p->start_after_scan;
930 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
931 switch (op) {
932 case P2P_AFTER_SCAN_NOTHING:
933 break;
934 case P2P_AFTER_SCAN_LISTEN:
ed496f13 935 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 936 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
937 p2p->pending_listen_usec / 1000);
938 return 1;
939 case P2P_AFTER_SCAN_CONNECT:
ed496f13 940 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 941 MAC2STR(p2p->after_scan_peer));
942 dev = p2p_get_device(p2p, p2p->after_scan_peer);
943 if (dev == NULL) {
ed496f13 944 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 945 break;
946 }
947 p2p_connect_send(p2p, dev);
948 return 1;
949 }
950
951 return 0;
952}
953
954
b22128ef
JM		 955static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
956{
957 struct p2p_data *p2p = eloop_ctx;
958 int running;
ed496f13 959 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 960 running = p2p->p2p_scan_running;
961 /* Make sure we recover from missed scan results callback */
962 p2p->p2p_scan_running = 0;
963
964 if (running)
965 p2p_run_after_scan(p2p);
966}
967
968
046ef4aa
JMB		 969static void p2p_free_req_dev_types(struct p2p_data *p2p)
970{
971 p2p->num_req_dev_types = 0;
972 os_free(p2p->req_dev_types);
973 p2p->req_dev_types = NULL;
974}
975
976
b22128ef 977int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 978 enum p2p_discovery_type type,
6d92fa6e 979 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 980 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 981{
982 int res;
983
ed496f13 984 p2p_dbg(p2p, "Starting find (type=%d)", type);
a5b5e830 985 os_get_time(&p2p->find_start);
b22128ef 986 if (p2p->p2p_scan_running) {
ed496f13 987 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 988 }
046ef4aa
JMB		 989
990 p2p_free_req_dev_types(p2p);
991 if (req_dev_types && num_req_dev_types) {
992 p2p->req_dev_types = os_malloc(num_req_dev_types *
993 WPS_DEV_TYPE_LEN);
994 if (p2p->req_dev_types == NULL)
995 return -1;
996 os_memcpy(p2p->req_dev_types, req_dev_types,
997 num_req_dev_types * WPS_DEV_TYPE_LEN);
998 p2p->num_req_dev_types = num_req_dev_types;
999 }
1000
6d92fa6e
JM		 1001 if (dev_id) {
1002 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1003 p2p->find_dev_id = p2p->find_dev_id_buf;
1004 } else
1005 p2p->find_dev_id = NULL;
1006
b22128ef
JM		 1007 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1008 p2p_clear_timeout(p2p);
1009 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1010 p2p->find_type = type;
1011 p2p_device_clear_reported(p2p);
1012 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1013 p2p->search_delay = search_delay;
1014 p2p->in_search_delay = 0;
b22128ef 1015 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1016 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1017 if (timeout)
1018 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1019 p2p, NULL);
1020 switch (type) {
1021 case P2P_FIND_START_WITH_FULL:
1022 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1023 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1024 p2p->num_req_dev_types,
360182ed
JM		 1025 p2p->req_dev_types, dev_id,
1026 DEV_PW_DEFAULT);
b22128ef
JM		 1027 break;
1028 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1029 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1030 p2p->num_req_dev_types,
360182ed
JM		 1031 p2p->req_dev_types, dev_id,
1032 DEV_PW_DEFAULT);
b22128ef
JM		 1033 break;
1034 default:
1035 return -1;
1036 }
1037
1038 if (res == 0) {
ed496f13 1039 p2p_dbg(p2p, "Running p2p_scan");
b22128ef
JM		 1040 p2p->p2p_scan_running = 1;
1041 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1042 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1043 p2p, NULL);
39185dfa 1044 } else if (res == 1) {
ed496f13 1045 p2p_dbg(p2p, "Could not start p2p_scan at this point - will try again after previous scan completes");
39185dfa
JM		 1046 res = 0;
1047 p2p_set_state(p2p, P2P_SEARCH_WHEN_READY);
1048 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef 1049 } else {
ed496f13 1050 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1051 p2p_set_state(p2p, P2P_IDLE);
1052 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1053 }
1054
1055 return res;
1056}
1057
1058
39185dfa
JM		 1059int p2p_other_scan_completed(struct p2p_data *p2p)
1060{
99fcd404
JM		 1061 if (p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY) {
1062 p2p_set_state(p2p, P2P_SEARCH);
1063 p2p_search(p2p);
1064 return 1;
1065 }
39185dfa
JM		 1066 if (p2p->state != P2P_SEARCH_WHEN_READY)
1067 return 0;
ed496f13 1068 p2p_dbg(p2p, "Starting pending P2P find now that previous scan was completed");
39185dfa 1069 if (p2p_find(p2p, p2p->last_p2p_find_timeout, p2p->find_type,
6d92fa6e 1070 p2p->num_req_dev_types, p2p->req_dev_types,
c002f640 1071 p2p->find_dev_id, p2p->search_delay) < 0) {
710ae9ac 1072 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
39185dfa 1073 return 0;
c002f640 1074 }
39185dfa
JM		 1075 return 1;
1076}
1077
1078
0b8889d8 1079void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1080{
ed496f13 1081 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1082 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1083 p2p_clear_timeout(p2p);
a16ed53a
PK		 1084 if (p2p->state == P2P_SEARCH ||
1085 p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY ||
1086 p2p->state == P2P_SEARCH_WHEN_READY)
710ae9ac 1087 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
b22128ef 1088 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1089 p2p_free_req_dev_types(p2p);
b22128ef 1090 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1091 if (p2p->go_neg_peer)
fb8984fd 1092 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1093 p2p->go_neg_peer = NULL;
1094 p2p->sd_peer = NULL;
1095 p2p->invite_peer = NULL;
1a9c618d
JM		 1096 p2p_stop_listen_for_freq(p2p, freq);
1097}
1098
1099
1100void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1101{
0b8889d8 1102 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1103 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1104 return;
1105 }
1a9c618d
JM		 1106 if (p2p->in_listen) {
1107 p2p->in_listen = 0;
1108 p2p_clear_timeout(p2p);
1109 }
54b8f994
JM		 1110 if (p2p->drv_in_listen) {
1111 /*
1112 * The driver may not deliver callback to p2p_listen_end()
1113 * when the operation gets canceled, so clear the internal
1114 * variable that is tracking driver state.
1115 */
ed496f13 1116 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1117 p2p->drv_in_listen = 0;
1118 }
b22128ef
JM		 1119 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1120}
1121
1122
0b5fb86a
SADR		 1123void p2p_stop_listen(struct p2p_data *p2p)
1124{
1125 if (p2p->state != P2P_LISTEN_ONLY) {
1126 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1127 return;
1128 }
1129
1130 p2p_stop_listen_for_freq(p2p, 0);
1131 p2p_set_state(p2p, P2P_IDLE);
1132}
1133
1134
0b8889d8
JM		 1135void p2p_stop_find(struct p2p_data *p2p)
1136{
1137 p2p_stop_find_for_freq(p2p, 0);
1138}
1139
1140
e28c226d
JM		 1141static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1142 unsigned int force_freq,
1143 unsigned int pref_freq)
1144{
1145 u8 op_class, op_channel;
1146 unsigned int freq = force_freq ? force_freq : pref_freq;
1147
99d7c762
JM		 1148 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u",
1149 force_freq, pref_freq);
9ccd9165 1150 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1151 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1152 return -1;
1153 }
1154
1155 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel)) {
ed496f13
JM		 1156 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1157 freq, op_class, op_channel);
e28c226d
JM		 1158 return -1;
1159 }
1160
1161 p2p->op_reg_class = op_class;
1162 p2p->op_channel = op_channel;
1163
1164 if (force_freq) {
1165 p2p->channels.reg_classes = 1;
1166 p2p->channels.reg_class[0].channels = 1;
1167 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1168 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1169 } else {
1170 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1171 sizeof(struct p2p_channels));
1172 }
1173
1174 return 0;
1175}
1176
1177
1178static void p2p_prepare_channel_best(struct p2p_data *p2p)
1179{
1180 u8 op_class, op_channel;
1181
99d7c762
JM		 1182 p2p_dbg(p2p, "Prepare channel best");
1183
e28c226d
JM		 1184 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1185 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1186 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1187 == 0) {
ed496f13 1188 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1189 p2p->op_reg_class = op_class;
1190 p2p->op_channel = op_channel;
1191 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1192 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1193 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1194 == 0) {
ed496f13 1195 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1196 p2p->op_reg_class = op_class;
1197 p2p->op_channel = op_channel;
1198 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1199 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1200 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1201 &op_channel) == 0) {
ed496f13 1202 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1203 p2p->op_reg_class = op_class;
1204 p2p->op_channel = op_channel;
6701fdc3
JM		 1205 } else if (p2p->cfg->num_pref_chan > 0 &&
1206 p2p_channels_includes(&p2p->cfg->channels,
1207 p2p->cfg->pref_chan[0].op_class,
1208 p2p->cfg->pref_chan[0].chan)) {
1209 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1210 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1211 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
e28c226d 1212 } else {
99d7c762 1213 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1214 p2p->op_reg_class = p2p->cfg->op_reg_class;
1215 p2p->op_channel = p2p->cfg->op_channel;
1216 }
1217
1218 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1219 sizeof(struct p2p_channels));
1220}
1221
1222
a5830ede
JM		 1223/**
1224 * p2p_prepare_channel - Select operating channel for GO Negotiation
1225 * @p2p: P2P module context from p2p_init()
1226 * @dev: Selected peer device
1227 * @force_freq: Forced frequency in MHz or 0 if not forced
1228 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1229 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1230 *
1231 * This function is used to do initial operating channel selection for GO
1232 * Negotiation prior to having received peer information. The selected channel
1233 * may be further optimized in p2p_reselect_channel() once the peer information
1234 * is available.
1235 */
79879f4a
DG		 1236int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
1237 unsigned int force_freq, unsigned int pref_freq)
b22128ef 1238{
99d7c762
JM		 1239 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u",
1240 force_freq, pref_freq);
04a3e69d 1241 if (force_freq || pref_freq) {
e28c226d 1242 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq) < 0)
1e19f734 1243 return -1;
b22128ef 1244 } else {
e28c226d 1245 p2p_prepare_channel_best(p2p);
b22128ef 1246 }
ed496f13 1247 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1248 p2p->op_reg_class, p2p->op_channel,
1249 force_freq ? " (forced)" : "");
1250
92ac756c
JM		 1251 if (force_freq)
1252 dev->flags |= P2P_DEV_FORCE_FREQ;
1253 else
1254 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1255
7861cb08
JM		 1256 return 0;
1257}
1258
1259
acc247b2
JM		 1260static void p2p_set_dev_persistent(struct p2p_device *dev,
1261 int persistent_group)
1262{
1263 switch (persistent_group) {
1264 case 0:
1265 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1266 P2P_DEV_PREFER_PERSISTENT_RECONN);
1267 break;
1268 case 1:
1269 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1270 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1271 break;
1272 case 2:
1273 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1274 P2P_DEV_PREFER_PERSISTENT_RECONN;
1275 break;
1276 }
1277}
1278
1279
7861cb08
JM		 1280int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1281 enum p2p_wps_method wps_method,
1282 int go_intent, const u8 *own_interface_addr,
23c84252 1283 unsigned int force_freq, int persistent_group,
3bc462cb 1284 const u8 *force_ssid, size_t force_ssid_len,
04a3e69d 1285 int pd_before_go_neg, unsigned int pref_freq)
7861cb08
JM		 1286{
1287 struct p2p_device *dev;
1288
ed496f13 1289 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1290 " GO Intent=%d Intended Interface Address=" MACSTR
3bc462cb 1291 " wps_method=%d persistent_group=%d pd_before_go_neg=%d",
7861cb08 1292 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
3bc462cb 1293 wps_method, persistent_group, pd_before_go_neg);
7861cb08 1294
b22128ef
JM		 1295 dev = p2p_get_device(p2p, peer_addr);
1296 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1297 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1298 MAC2STR(peer_addr));
1299 return -1;
1300 }
1301
92ac756c
JM		 1302 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1303 return -1;
1304
b22128ef 1305 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1306 if (!(dev->info.dev_capab &
1307 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1308 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1309 " that is in a group and is not discoverable",
1310 MAC2STR(peer_addr));
1311 return -1;
1312 }
1313 if (dev->oper_freq <= 0) {
ed496f13 1314 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1315 " with incomplete information",
1316 MAC2STR(peer_addr));
1317 return -1;
1318 }
1319
1320 /*
1321 * First, try to connect directly. If the peer does not
1322 * acknowledge frames, assume it is sleeping and use device
1323 * discoverability via the GO at that point.
1324 */
1325 }
1326
23c84252
JM		 1327 p2p->ssid_set = 0;
1328 if (force_ssid) {
1329 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1330 force_ssid, force_ssid_len);
1331 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1332 p2p->ssid_len = force_ssid_len;
1333 p2p->ssid_set = 1;
1334 }
1335
b22128ef
JM		 1336 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1337 dev->flags &= ~P2P_DEV_USER_REJECTED;
1338 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1339 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1340 if (pd_before_go_neg)
1341 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1342 else {
3bc462cb 1343 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1344 /*
003c4580
JM		 1345 * Assign dialog token and tie breaker here to use the same
1346 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1347 */
1348 dev->dialog_token++;
1349 if (dev->dialog_token == 0)
1350 dev->dialog_token = 1;
003c4580
JM		 1351 dev->tie_breaker = p2p->next_tie_breaker;
1352 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1353 }
9dac8c3e 1354 dev->connect_reqs = 0;
b22128ef
JM		 1355 dev->go_neg_req_sent = 0;
1356 dev->go_state = UNKNOWN_GO;
acc247b2 1357 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1358 p2p->go_intent = go_intent;
1359 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1360
1361 if (p2p->state != P2P_IDLE)
1362 p2p_stop_find(p2p);
1363
f44ae207
JM		 1364 if (p2p->after_scan_tx) {
1365 /*
1366 * We need to drop the pending frame to avoid issues with the
1367 * new GO Negotiation, e.g., when the pending frame was from a
1368 * previous attempt at starting a GO Negotiation.
1369 */
ed496f13 1370 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
f44ae207
JM		 1371 os_free(p2p->after_scan_tx);
1372 p2p->after_scan_tx = NULL;
1373 }
1374
b22128ef
JM		 1375 dev->wps_method = wps_method;
1376 dev->status = P2P_SC_SUCCESS;
d5b20a73 1377
b22128ef 1378 if (p2p->p2p_scan_running) {
ed496f13 1379 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1380 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1381 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1382 return 0;
1383 }
1384 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1385
1386 return p2p_connect_send(p2p, dev);
1387}
1388
1389
1390int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1391 enum p2p_wps_method wps_method,
1392 int go_intent, const u8 *own_interface_addr,
23c84252 1393 unsigned int force_freq, int persistent_group,
04a3e69d
JM		 1394 const u8 *force_ssid, size_t force_ssid_len,
1395 unsigned int pref_freq)
b22128ef
JM		 1396{
1397 struct p2p_device *dev;
1398
ed496f13 1399 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef
JM		 1400 " GO Intent=%d Intended Interface Address=" MACSTR
1401 " wps_method=%d persistent_group=%d",
1402 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1403 wps_method, persistent_group);
1404
b22128ef
JM		 1405 dev = p2p_get_device(p2p, peer_addr);
1406 if (dev == NULL) {
ed496f13 1407 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1408 MAC2STR(peer_addr));
1409 return -1;
1410 }
1411
92ac756c
JM		 1412 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1413 return -1;
1414
23c84252
JM		 1415 p2p->ssid_set = 0;
1416 if (force_ssid) {
1417 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1418 force_ssid, force_ssid_len);
1419 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1420 p2p->ssid_len = force_ssid_len;
1421 p2p->ssid_set = 1;
1422 }
1423
b22128ef
JM		 1424 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1425 dev->flags &= ~P2P_DEV_USER_REJECTED;
1426 dev->go_neg_req_sent = 0;
1427 dev->go_state = UNKNOWN_GO;
acc247b2 1428 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1429 p2p->go_intent = go_intent;
1430 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1431
1432 dev->wps_method = wps_method;
1433 dev->status = P2P_SC_SUCCESS;
1434
1435 return 0;
1436}
1437
1438
1439void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1440 struct p2p_device *dev, struct p2p_message *msg)
1441{
1442 os_get_time(&dev->last_seen);
1443
ed496f13 1444 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1445
b22128ef
JM		 1446 if (msg->listen_channel) {
1447 int freq;
9ccd9165 1448 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1449 msg->listen_channel[4]);
1450 if (freq < 0) {
ed496f13 1451 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1452 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1453 msg->listen_channel[0],
1454 msg->listen_channel[1],
1455 msg->listen_channel[2],
1456 msg->listen_channel[3],
1457 msg->listen_channel[4]);
1458 } else {
ed496f13
JM		 1459 p2p_dbg(p2p, "Update peer " MACSTR
1460 " Listen channel: %u -> %u MHz",
c5db8e51 1461 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1462 dev->listen_freq, freq);
1463 dev->listen_freq = freq;
1464 }
1465 }
b22128ef 1466
9675ce35
JM		 1467 if (msg->wfd_subelems) {
1468 wpabuf_free(dev->info.wfd_subelems);
1469 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1470 }
1471
b22128ef
JM		 1472 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1473 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1474 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1475 } else {
ed496f13 1476 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1477 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1478 "listen_freq=%d",
c5db8e51
KRK		 1479 MAC2STR(dev->info.p2p_device_addr),
1480 dev->info.dev_capab, dev->info.group_capab,
1481 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1482 }
1483
1484 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1485
1486 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1487 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1488 return;
1489 }
1490
8fd7dc1b
JB		 1491 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1492 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1493 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1494}
1495
1496
1497void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1498{
1499 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1500 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1501 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1502 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1503 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1504}
1505
1506
1507int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1508{
1509 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1510 p2p_random(params->passphrase, 8);
1511 return 0;
1512}
1513
1514
1515void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1516{
1517 struct p2p_go_neg_results res;
1518 int go = peer->go_state == LOCAL_GO;
1519 struct p2p_channels intersection;
1520 int freqs;
1521 size_t i, j;
1522
ed496f13
JM		 1523 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1524 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1525
1526 os_memset(&res, 0, sizeof(res));
1527 res.role_go = go;
c5db8e51 1528 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1529 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1530 res.wps_method = peer->wps_method;
acc247b2
JM		 1531 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1532 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1533 res.persistent_group = 2;
1534 else
1535 res.persistent_group = 1;
1536 }
b22128ef
JM		 1537
1538 if (go) {
1539 /* Setup AP mode for WPS provisioning */
9ccd9165 1540 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1541 p2p->op_channel);
1542 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1543 res.ssid_len = p2p->ssid_len;
1544 p2p_random(res.passphrase, 8);
e9a7ae41 1545 } else {
b22128ef 1546 res.freq = peer->oper_freq;
e9a7ae41
JM		 1547 if (p2p->ssid_len) {
1548 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1549 res.ssid_len = p2p->ssid_len;
1550 }
1551 }
b22128ef
JM		 1552
1553 p2p_channels_intersect(&p2p->channels, &peer->channels,
1554 &intersection);
1555 freqs = 0;
1556 for (i = 0; i < intersection.reg_classes; i++) {
1557 struct p2p_reg_class *c = &intersection.reg_class[i];
1558 if (freqs + 1 == P2P_MAX_CHANNELS)
1559 break;
1560 for (j = 0; j < c->channels; j++) {
1561 int freq;
1562 if (freqs + 1 == P2P_MAX_CHANNELS)
1563 break;
9ccd9165 1564 freq = p2p_channel_to_freq(c->reg_class, c->channel[j]);
b22128ef
JM		 1565 if (freq < 0)
1566 continue;
1567 res.freq_list[freqs++] = freq;
1568 }
1569 }
1570
ae3e3421
JM		 1571 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1572
b22128ef 1573 p2p_clear_timeout(p2p);
4458d915 1574 p2p->ssid_set = 0;
b22128ef
JM		 1575 peer->go_neg_req_sent = 0;
1576 peer->wps_method = WPS_NOT_READY;
1577
1578 p2p_set_state(p2p, P2P_PROVISIONING);
1579 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1580}
1581
1582
1583static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1584 const u8 *data, size_t len, int rx_freq)
1585{
ed496f13 1586 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1587 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1588
1589 if (len < 1)
1590 return;
1591
1592 switch (data[0]) {
1593 case P2P_GO_NEG_REQ:
1594 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1595 break;
1596 case P2P_GO_NEG_RESP:
1597 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1598 break;
1599 case P2P_GO_NEG_CONF:
1600 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1601 break;
1602 case P2P_INVITATION_REQ:
1603 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1604 rx_freq);
1605 break;
1606 case P2P_INVITATION_RESP:
1607 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1608 break;
1609 case P2P_PROV_DISC_REQ:
1610 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1611 break;
1612 case P2P_PROV_DISC_RESP:
1613 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1614 break;
1615 case P2P_DEV_DISC_REQ:
1616 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1617 break;
1618 case P2P_DEV_DISC_RESP:
1619 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1620 break;
1621 default:
ed496f13 1622 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1623 data[0]);
1624 break;
1625 }
1626}
1627
1628
19df9b07
JM		 1629static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1630 const u8 *sa, const u8 *bssid, const u8 *data,
1631 size_t len, int freq)
b22128ef
JM		 1632{
1633 if (len < 1)
1634 return;
1635
1636 switch (data[0]) {
1637 case WLAN_PA_VENDOR_SPECIFIC:
1638 data++;
1639 len--;
1640 if (len < 3)
1641 return;
1642 if (WPA_GET_BE24(data) != OUI_WFA)
1643 return;
1644
1645 data += 3;
1646 len -= 3;
1647 if (len < 1)
1648 return;
1649
1650 if (*data != P2P_OUI_TYPE)
1651 return;
1652
1653 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1654 break;
1655 case WLAN_PA_GAS_INITIAL_REQ:
1656 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1657 break;
1658 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1659 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1660 break;
1661 case WLAN_PA_GAS_COMEBACK_REQ:
1662 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1663 break;
1664 case WLAN_PA_GAS_COMEBACK_RESP:
1665 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1666 break;
1667 }
1668}
1669
1670
1671void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1672 const u8 *bssid, u8 category,
1673 const u8 *data, size_t len, int freq)
1674{
1675 if (category == WLAN_ACTION_PUBLIC) {
1676 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1677 return;
1678 }
1679
1680 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1681 return;
1682
1683 if (len < 4)
1684 return;
1685
1686 if (WPA_GET_BE24(data) != OUI_WFA)
1687 return;
1688 data += 3;
1689 len -= 3;
1690
1691 if (*data != P2P_OUI_TYPE)
1692 return;
1693 data++;
1694 len--;
1695
1696 /* P2P action frame */
ed496f13 1697 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1698 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1699
1700 if (len < 1)
1701 return;
1702 switch (data[0]) {
1703 case P2P_NOA:
ed496f13 1704 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1705 /* TODO */
1706 break;
1707 case P2P_PRESENCE_REQ:
1708 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1709 break;
1710 case P2P_PRESENCE_RESP:
1711 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1712 break;
1713 case P2P_GO_DISC_REQ:
1714 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1715 break;
1716 default:
ed496f13 1717 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1718 break;
1719 }
1720}
1721
1722
1723static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1724{
1725 struct p2p_data *p2p = eloop_ctx;
1726 if (p2p->go_neg_peer == NULL)
1727 return;
1728 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1729 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1730 p2p_connect_send(p2p, p2p->go_neg_peer);
1731}
1732
1733
1734static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1735{
1736 struct p2p_data *p2p = eloop_ctx;
1737 if (p2p->invite_peer == NULL)
1738 return;
1739 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1740 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1741}
1742
1743
1744static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1745 const u8 *ie, size_t ie_len)
1746{
1747 struct p2p_message msg;
1748 struct p2p_device *dev;
1749
1750 os_memset(&msg, 0, sizeof(msg));
1751 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1752 {
1753 p2p_parse_free(&msg);
1754 return; /* not a P2P probe */
1755 }
1756
1757 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1758 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1759 != 0) {
1760 /* The Probe Request is not part of P2P Device Discovery. It is
1761 * not known whether the source address of the frame is the P2P
1762 * Device Address or P2P Interface Address. Do not add a new
1763 * peer entry based on this frames.
1764 */
1765 p2p_parse_free(&msg);
1766 return;
1767 }
1768
1769 dev = p2p_get_device(p2p, addr);
1770 if (dev) {
1771 if (dev->country[0] == 0 && msg.listen_channel)
1772 os_memcpy(dev->country, msg.listen_channel, 3);
ed908a55 1773 os_get_time(&dev->last_seen);
b22128ef
JM		 1774 p2p_parse_free(&msg);
1775 return; /* already known */
1776 }
1777
1778 dev = p2p_create_device(p2p, addr);
1779 if (dev == NULL) {
1780 p2p_parse_free(&msg);
1781 return;
1782 }
1783
1784 os_get_time(&dev->last_seen);
1785 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1786
b22128ef
JM		 1787 if (msg.listen_channel) {
1788 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 1789 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 1790 msg.listen_channel[4]);
1791 }
1792
ed496f13 1793 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 1794
9675ce35
JM		 1795 if (msg.wfd_subelems) {
1796 wpabuf_free(dev->info.wfd_subelems);
1797 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1798 }
1799
b22128ef
JM		 1800 p2p_parse_free(&msg);
1801
ed496f13 1802 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 1803 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1804 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1805 dev->info.group_capab, dev->info.device_name,
1806 dev->listen_freq);
b22128ef
JM		 1807}
1808
1809
1810struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1811 const u8 *addr,
1812 struct p2p_message *msg)
1813{
1814 struct p2p_device *dev;
1815
1816 dev = p2p_get_device(p2p, addr);
1817 if (dev) {
1818 os_get_time(&dev->last_seen);
1819 return dev; /* already known */
1820 }
1821
1822 dev = p2p_create_device(p2p, addr);
1823 if (dev == NULL)
1824 return NULL;
1825
1826 p2p_add_dev_info(p2p, addr, dev, msg);
1827
1828 return dev;
1829}
1830
1831
1832static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1833{
1834 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1835 return 1;
1836 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1837 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1838 WPA_GET_BE16(&req_dev_type[6]) == 0)
1839 return 1; /* Category match with wildcard OUI/sub-category */
1840 return 0;
1841}
1842
1843
1844int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1845 size_t num_req_dev_type)
1846{
1847 size_t i;
1848 for (i = 0; i < num_req_dev_type; i++) {
1849 if (dev_type_match(dev_type, req_dev_type[i]))
1850 return 1;
1851 }
1852 return 0;
1853}
1854
1855
1856/**
1857 * p2p_match_dev_type - Match local device type with requested type
1858 * @p2p: P2P module context from p2p_init()
1859 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1860 * Returns: 1 on match, 0 on mismatch
1861 *
1862 * This function can be used to match the Requested Device Type attribute in
1863 * WPS IE with the local device types for deciding whether to reply to a Probe
1864 * Request frame.
1865 */
1866int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1867{
1868 struct wps_parse_attr attr;
1869 size_t i;
1870
1871 if (wps_parse_msg(wps, &attr))
1872 return 1; /* assume no Requested Device Type attributes */
1873
1874 if (attr.num_req_dev_type == 0)
1875 return 1; /* no Requested Device Type attributes -> match */
1876
1877 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1878 attr.num_req_dev_type))
1879 return 1; /* Own Primary Device Type matches */
1880
1881 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1882 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1883 attr.req_dev_type,
1884 attr.num_req_dev_type))
1885 return 1; /* Own Secondary Device Type matches */
1886
1887 /* No matching device type found */
1888 return 0;
1889}
1890
1891
1892struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1893{
1894 struct wpabuf *buf;
1895 u8 *len;
360182ed 1896 int pw_id = -1;
9675ce35 1897 size_t extra = 0;
b22128ef 1898
9675ce35
JM		 1899#ifdef CONFIG_WIFI_DISPLAY
1900 if (p2p->wfd_ie_probe_resp)
1901 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1902#endif /* CONFIG_WIFI_DISPLAY */
1903
1904 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 1905 if (buf == NULL)
1906 return NULL;
1907
360182ed
JM		 1908 if (p2p->go_neg_peer) {
1909 /* Advertise immediate availability of WPS credential */
1910 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1911 }
1912
1913 p2p_build_wps_ie(p2p, buf, pw_id, 1);
b22128ef 1914
9675ce35
JM		 1915#ifdef CONFIG_WIFI_DISPLAY
1916 if (p2p->wfd_ie_probe_resp)
1917 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1918#endif /* CONFIG_WIFI_DISPLAY */
1919
b22128ef
JM		 1920 /* P2P IE */
1921 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 1922 p2p_buf_add_capability(buf, p2p->dev_capab &
1923 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 1924 if (p2p->ext_listen_interval)
1925 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1926 p2p->ext_listen_interval);
1927 p2p_buf_add_device_info(buf, p2p, NULL);
1928 p2p_buf_update_ie_hdr(buf, len);
1929
1930 return buf;
1931}
1932
1933
2d43d37f
JB		 1934static enum p2p_probe_req_status
1935p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1936 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1937{
1938 struct ieee802_11_elems elems;
1939 struct wpabuf *buf;
1940 struct ieee80211_mgmt *resp;
97c5b3c4 1941 struct p2p_message msg;
b22128ef
JM		 1942 struct wpabuf *ies;
1943
1944 if (!p2p->in_listen || !p2p->drv_in_listen) {
1945 /* not in Listen state - ignore Probe Request */
2d43d37f 1946 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 1947 }
1948
1949 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1950 ParseFailed) {
1951 /* Ignore invalid Probe Request frames */
2d43d37f 1952 return P2P_PREQ_MALFORMED;
b22128ef
JM		 1953 }
1954
1955 if (elems.p2p == NULL) {
1956 /* not a P2P probe - ignore it */
2d43d37f 1957 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 1958 }
1959
04a85e44
JM		 1960 if (dst && !is_broadcast_ether_addr(dst) &&
1961 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1962 /* Not sent to the broadcast address or our P2P Device Address
1963 */
2d43d37f 1964 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1965 }
1966
1967 if (bssid && !is_broadcast_ether_addr(bssid)) {
1968 /* Not sent to the Wildcard BSSID */
2d43d37f 1969 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1970 }
1971
b22128ef
JM		 1972 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1973 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1974 0) {
1975 /* not using P2P Wildcard SSID - ignore */
2d43d37f 1976 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 1977 }
1978
e1d52629
JM		 1979 if (supp_rates_11b_only(&elems)) {
1980 /* Indicates support for 11b rates only */
2d43d37f 1981 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 1982 }
1983
97c5b3c4
JM		 1984 os_memset(&msg, 0, sizeof(msg));
1985 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
1986 /* Could not parse P2P attributes */
2d43d37f 1987 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 1988 }
1989
1990 if (msg.device_id &&
1c7447d0 1991 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4
JM		 1992 /* Device ID did not match */
1993 p2p_parse_free(&msg);
2d43d37f 1994 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 1995 }
1996
b22128ef 1997 /* Check Requested Device Type match */
97c5b3c4
JM		 1998 if (msg.wps_attributes &&
1999 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2000 /* No match with Requested Device Type */
97c5b3c4 2001 p2p_parse_free(&msg);
2d43d37f 2002 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2003 }
97c5b3c4 2004 p2p_parse_free(&msg);
b22128ef 2005
2d43d37f
JB		 2006 if (!p2p->cfg->send_probe_resp) {
2007 /* Response generated elsewhere */
2008 return P2P_PREQ_NOT_PROCESSED;
2009 }
b22128ef 2010
ed496f13 2011 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2012
2013 /*
2014 * We do not really have a specific BSS that this frame is advertising,
2015 * so build a frame that has some information in valid format. This is
2016 * really only used for discovery purposes, not to learn exact BSS
2017 * parameters.
2018 */
2019 ies = p2p_build_probe_resp_ies(p2p);
2020 if (ies == NULL)
2d43d37f 2021 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2022
2023 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2024 if (buf == NULL) {
2025 wpabuf_free(ies);
2d43d37f 2026 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2027 }
2028
2029 resp = NULL;
2030 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2031
2032 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2033 (WLAN_FC_STYPE_PROBE_RESP << 4));
2034 os_memcpy(resp->da, addr, ETH_ALEN);
2035 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2036 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2037 resp->u.probe_resp.beacon_int = host_to_le16(100);
2038 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2039 resp->u.probe_resp.capab_info =
2040 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2041 WLAN_CAPABILITY_PRIVACY |
2042 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2043
2044 wpabuf_put_u8(buf, WLAN_EID_SSID);
2045 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2046 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2047
2048 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2049 wpabuf_put_u8(buf, 8);
2050 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2051 wpabuf_put_u8(buf, 90 / 5);
2052 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2053 wpabuf_put_u8(buf, 180 / 5);
2054 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2055 wpabuf_put_u8(buf, 360 / 5);
2056 wpabuf_put_u8(buf, 480 / 5);
2057 wpabuf_put_u8(buf, 540 / 5);
2058
2059 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2060 wpabuf_put_u8(buf, 1);
2061 wpabuf_put_u8(buf, p2p->cfg->channel);
2062
2063 wpabuf_put_buf(buf, ies);
2064 wpabuf_free(ies);
2065
2066 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2067
2068 wpabuf_free(buf);
2d43d37f
JB		 2069
2070 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2071}
2072
2073
2d43d37f
JB		 2074enum p2p_probe_req_status
2075p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2076 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2077{
2d43d37f
JB		 2078 enum p2p_probe_req_status res;
2079
b22128ef
JM		 2080 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2081
2d43d37f 2082 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2083
2084 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2085 p2p->go_neg_peer &&
c5db8e51 2086 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2087 == 0 &&
2088 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2089 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2090 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2091 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2092 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2093 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2094 }
2095
2096 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2097 p2p->invite_peer &&
c5db8e51
KRK		 2098 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2099 == 0) {
b22128ef 2100 /* Received a Probe Request from Invite peer */
ed496f13 2101 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
b22128ef 2102 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2103 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2104 }
2105
2d43d37f 2106 return res;
b22128ef
JM		 2107}
2108
2109
2110static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2111 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2112{
2113 struct wpabuf *tmp;
2114 u8 *lpos;
2115 size_t tmplen;
2116 int res;
72044390 2117 u8 group_capab;
b22128ef 2118
4c08c0bd
JM		 2119 if (p2p_ie == NULL)
2120 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2121
2122 /*
2123 * (Re)Association Request - P2P IE
2124 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2125 * P2P Interface attribute (present if concurrent device and
2126 * P2P Management is enabled)
b22128ef
JM		 2127 */
2128 tmp = wpabuf_alloc(200);
2129 if (tmp == NULL)
2130 return -1;
2131
2132 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2133 group_capab = 0;
2134 if (p2p->num_groups > 0) {
2135 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2136 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2137 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2138 p2p->cross_connect)
2139 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2140 }
2141 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2142 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2143 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2144 p2p_buf_add_p2p_interface(tmp, p2p);
2145 p2p_buf_update_ie_hdr(tmp, lpos);
2146
2147 tmplen = wpabuf_len(tmp);
2148 if (tmplen > len)
2149 res = -1;
2150 else {
2151 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2152 res = tmplen;
2153 }
2154 wpabuf_free(tmp);
2155
2156 return res;
2157}
2158
2159
2160int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2161 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2162{
2163 struct wpabuf *tmp;
2164 u8 *lpos;
2165 struct p2p_device *peer;
2166 size_t tmplen;
2167 int res;
9675ce35 2168 size_t extra = 0;
b22128ef
JM		 2169
2170 if (!p2p_group)
4c08c0bd 2171 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2172
9675ce35
JM		 2173#ifdef CONFIG_WIFI_DISPLAY
2174 if (p2p->wfd_ie_assoc_req)
2175 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2176#endif /* CONFIG_WIFI_DISPLAY */
2177
b22128ef
JM		 2178 /*
2179 * (Re)Association Request - P2P IE
2180 * P2P Capability attribute (shall be present)
2181 * Extended Listen Timing (may be present)
2182 * P2P Device Info attribute (shall be present)
2183 */
9675ce35 2184 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2185 if (tmp == NULL)
2186 return -1;
2187
9675ce35
JM		 2188#ifdef CONFIG_WIFI_DISPLAY
2189 if (p2p->wfd_ie_assoc_req)
2190 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2191#endif /* CONFIG_WIFI_DISPLAY */
2192
b22128ef
JM		 2193 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2194
2195 lpos = p2p_buf_add_ie_hdr(tmp);
2196 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2197 if (p2p->ext_listen_interval)
2198 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2199 p2p->ext_listen_interval);
b22128ef
JM		 2200 p2p_buf_add_device_info(tmp, p2p, peer);
2201 p2p_buf_update_ie_hdr(tmp, lpos);
2202
2203 tmplen = wpabuf_len(tmp);
2204 if (tmplen > len)
2205 res = -1;
2206 else {
2207 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2208 res = tmplen;
2209 }
2210 wpabuf_free(tmp);
2211
2212 return res;
2213}
2214
2215
2216int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2217{
2218 struct wpabuf *p2p_ie;
2219 int ret;
2220
2221 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2222 if (p2p_ie == NULL)
2223 return 0;
2224
2225 ret = p2p_attr_text(p2p_ie, buf, end);
2226 wpabuf_free(p2p_ie);
2227 return ret;
2228}
2229
2230
c2d76aa6 2231int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2232{
0a70f34f
JM		 2233 struct p2p_message msg;
2234
0a70f34f 2235 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2236 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2237 return -1;
0a70f34f 2238
526ec4ae
JM		 2239 if (msg.p2p_device_addr) {
2240 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2241 return 0;
526ec4ae
JM		 2242 } else if (msg.device_id) {
2243 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2244 return 0;
0a70f34f 2245 }
c2d76aa6
MH		 2246 return -1;
2247}
0a70f34f 2248
c2d76aa6
MH		 2249
2250int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2251{
2252 struct wpabuf *p2p_ie;
2253 int ret;
2254
2255 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2256 P2P_IE_VENDOR_TYPE);
2257 if (p2p_ie == NULL)
2258 return -1;
2259 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2260 wpabuf_free(p2p_ie);
526ec4ae 2261 return ret;
0a70f34f
JM		 2262}
2263
2264
b22128ef
JM		 2265static void p2p_clear_go_neg(struct p2p_data *p2p)
2266{
2267 p2p->go_neg_peer = NULL;
2268 p2p_clear_timeout(p2p);
2269 p2p_set_state(p2p, P2P_IDLE);
2270}
2271
2272
2273void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2274{
2275 if (p2p->go_neg_peer == NULL) {
ed496f13 2276 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2277 return; /* No pending Group Formation */
2278 }
2279
2280 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2281 0) {
ed496f13
JM		 2282 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2283 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2284 MAC2STR(mac_addr),
2285 MAC2STR(p2p->go_neg_peer->intended_addr));
2286 return; /* Ignore unexpected peer address */
2287 }
2288
ed496f13 2289 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2290 MAC2STR(mac_addr));
2291
2292 p2p_clear_go_neg(p2p);
2293}
2294
2295
2296void p2p_group_formation_failed(struct p2p_data *p2p)
2297{
2298 if (p2p->go_neg_peer == NULL) {
ed496f13 2299 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2300 return; /* No pending Group Formation */
2301 }
2302
ed496f13 2303 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2304 MAC2STR(p2p->go_neg_peer->intended_addr));
2305
2306 p2p_clear_go_neg(p2p);
2307}
2308
2309
2310struct p2p_data * p2p_init(const struct p2p_config *cfg)
2311{
2312 struct p2p_data *p2p;
2313
2314 if (cfg->max_peers < 1)
2315 return NULL;
2316
2317 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2318 if (p2p == NULL)
2319 return NULL;
2320 p2p->cfg = (struct p2p_config *) (p2p + 1);
2321 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2322 if (cfg->dev_name)
2323 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2324 if (cfg->manufacturer)
2325 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2326 if (cfg->model_name)
2327 p2p->cfg->model_name = os_strdup(cfg->model_name);
2328 if (cfg->model_number)
2329 p2p->cfg->model_number = os_strdup(cfg->model_number);
2330 if (cfg->serial_number)
2331 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2332 if (cfg->pref_chan) {
2333 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2334 sizeof(struct p2p_channel));
2335 if (p2p->cfg->pref_chan) {
2336 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2337 cfg->num_pref_chan *
2338 sizeof(struct p2p_channel));
2339 } else
2340 p2p->cfg->num_pref_chan = 0;
2341 }
b22128ef
JM		 2342
2343 p2p->min_disc_int = 1;
2344 p2p->max_disc_int = 3;
96beff11 2345 p2p->max_disc_tu = -1;
b22128ef
JM		 2346
2347 os_get_random(&p2p->next_tie_breaker, 1);
2348 p2p->next_tie_breaker &= 0x01;
2349 if (cfg->sd_request)
2350 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2351 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2352 if (cfg->concurrent_operations)
2353 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2354 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2355
2356 dl_list_init(&p2p->devices);
2357
2358 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2359 p2p_expiration_timeout, p2p, NULL);
2360
4f219667
JM		 2361 p2p->go_timeout = 100;
2362 p2p->client_timeout = 20;
2363
b22128ef
JM		 2364 return p2p;
2365}
2366
2367
2368void p2p_deinit(struct p2p_data *p2p)
2369{
9675ce35
JM		 2370#ifdef CONFIG_WIFI_DISPLAY
2371 wpabuf_free(p2p->wfd_ie_beacon);
2372 wpabuf_free(p2p->wfd_ie_probe_req);
2373 wpabuf_free(p2p->wfd_ie_probe_resp);
2374 wpabuf_free(p2p->wfd_ie_assoc_req);
2375 wpabuf_free(p2p->wfd_ie_invitation);
2376 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2377 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2378 wpabuf_free(p2p->wfd_ie_go_neg);
2379 wpabuf_free(p2p->wfd_dev_info);
2380 wpabuf_free(p2p->wfd_assoc_bssid);
2381 wpabuf_free(p2p->wfd_coupled_sink_info);
2382#endif /* CONFIG_WIFI_DISPLAY */
2383
b22128ef
JM		 2384 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2385 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2386 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2387 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2388 p2p_flush(p2p);
046ef4aa 2389 p2p_free_req_dev_types(p2p);
b22128ef 2390 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2391 os_free(p2p->cfg->manufacturer);
2392 os_free(p2p->cfg->model_name);
2393 os_free(p2p->cfg->model_number);
2394 os_free(p2p->cfg->serial_number);
21d996f7 2395 os_free(p2p->cfg->pref_chan);
b22128ef 2396 os_free(p2p->groups);
18708aad 2397 wpabuf_free(p2p->sd_resp);
3f9285ff 2398 os_free(p2p->after_scan_tx);
f95cac27 2399 p2p_remove_wps_vendor_extensions(p2p);
b22128ef
JM		 2400 os_free(p2p);
2401}
2402
2403
2404void p2p_flush(struct p2p_data *p2p)
2405{
2406 struct p2p_device *dev, *prev;
78db55b8 2407 p2p_stop_find(p2p);
b22128ef
JM		 2408 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2409 list) {
2410 dl_list_del(&dev->list);
2411 p2p_device_free(p2p, dev);
2412 }
2413 p2p_free_sd_queries(p2p);
f44ae207
JM		 2414 os_free(p2p->after_scan_tx);
2415 p2p->after_scan_tx = NULL;
b22128ef
JM		 2416}
2417
2418
9d562b79
SS		 2419int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2420{
2421 struct p2p_device *dev;
2422
2423 dev = p2p_get_device(p2p, addr);
2424 if (dev == NULL)
2425 return -1;
2426
ed496f13 2427 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79
SS		 2428
2429 if (p2p->go_neg_peer == dev)
2430 p2p->go_neg_peer = NULL;
2431
2432 dev->wps_method = WPS_NOT_READY;
2433 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2434 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2435
2436 /* Check if after_scan_tx is for this peer. If so free it */
2437 if (p2p->after_scan_tx &&
2438 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2439 os_free(p2p->after_scan_tx);
2440 p2p->after_scan_tx = NULL;
2441 }
2442
2443 return 0;
2444}
2445
2446
b22128ef
JM		 2447int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2448{
2449 os_free(p2p->cfg->dev_name);
2450 if (dev_name) {
2451 p2p->cfg->dev_name = os_strdup(dev_name);
2452 if (p2p->cfg->dev_name == NULL)
2453 return -1;
2454 } else
2455 p2p->cfg->dev_name = NULL;
2456 return 0;
2457}
2458
2459
b6e01800
JM		 2460int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2461{
2462 os_free(p2p->cfg->manufacturer);
2463 p2p->cfg->manufacturer = NULL;
2464 if (manufacturer) {
2465 p2p->cfg->manufacturer = os_strdup(manufacturer);
2466 if (p2p->cfg->manufacturer == NULL)
2467 return -1;
2468 }
2469
2470 return 0;
2471}
2472
2473
2474int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2475{
2476 os_free(p2p->cfg->model_name);
2477 p2p->cfg->model_name = NULL;
2478 if (model_name) {
2479 p2p->cfg->model_name = os_strdup(model_name);
2480 if (p2p->cfg->model_name == NULL)
2481 return -1;
2482 }
2483
2484 return 0;
2485}
2486
2487
2488int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2489{
2490 os_free(p2p->cfg->model_number);
2491 p2p->cfg->model_number = NULL;
2492 if (model_number) {
2493 p2p->cfg->model_number = os_strdup(model_number);
2494 if (p2p->cfg->model_number == NULL)
2495 return -1;
2496 }
2497
2498 return 0;
2499}
2500
2501
2502int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2503{
2504 os_free(p2p->cfg->serial_number);
2505 p2p->cfg->serial_number = NULL;
2506 if (serial_number) {
2507 p2p->cfg->serial_number = os_strdup(serial_number);
2508 if (p2p->cfg->serial_number == NULL)
2509 return -1;
2510 }
2511
2512 return 0;
2513}
2514
2515
2516void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2517{
2518 p2p->cfg->config_methods = config_methods;
2519}
2520
2521
2522void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2523{
2524 os_memcpy(p2p->cfg->uuid, uuid, 16);
2525}
2526
2527
b22128ef
JM		 2528int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2529{
2530 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2531 return 0;
2532}
2533
2534
2535int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2536 size_t num_dev_types)
2537{
2538 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2539 num_dev_types = P2P_SEC_DEVICE_TYPES;
2540 p2p->cfg->num_sec_dev_types = num_dev_types;
2541 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2542 return 0;
2543}
2544
2545
f95cac27
JMB		 2546void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2547{
2548 int i;
2549
10c5d2a5 2550 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2551 wpabuf_free(p2p->wps_vendor_ext[i]);
2552 p2p->wps_vendor_ext[i] = NULL;
2553 }
2554}
2555
2556
2557int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2558 const struct wpabuf *vendor_ext)
2559{
2560 int i;
2561
2562 if (vendor_ext == NULL)
2563 return -1;
2564
10c5d2a5 2565 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2566 if (p2p->wps_vendor_ext[i] == NULL)
2567 break;
2568 }
10c5d2a5 2569 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2570 return -1;
2571
2572 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2573 if (p2p->wps_vendor_ext[i] == NULL)
2574 return -1;
2575
2576 return 0;
2577}
2578
2579
b22128ef
JM		 2580int p2p_set_country(struct p2p_data *p2p, const char *country)
2581{
2582 os_memcpy(p2p->cfg->country, country, 3);
2583 return 0;
2584}
2585
2586
2587void p2p_continue_find(struct p2p_data *p2p)
2588{
2589 struct p2p_device *dev;
2590 p2p_set_state(p2p, P2P_SEARCH);
2591 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2592 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2593 if (p2p_start_sd(p2p, dev) == 0)
2594 return;
2595 else
2596 break;
10c4edde
JM		 2597 } else if (dev->req_config_methods &&
2598 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
ed496f13 2599 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
10c4edde 2600 MACSTR " (config methods 0x%x)",
c5db8e51 2601 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2602 dev->req_config_methods);
1ef2f7ff 2603 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2604 return;
2605 }
2606 }
2607
96beff11 2608 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2609}
2610
2611
2612static void p2p_sd_cb(struct p2p_data *p2p, int success)
2613{
ed496f13 2614 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 2615 success);
2616 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2617
2618 if (!success) {
2619 if (p2p->sd_peer) {
2620 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2621 p2p->sd_peer = NULL;
2622 }
2623 p2p_continue_find(p2p);
2624 return;
2625 }
2626
2627 if (p2p->sd_peer == NULL) {
ed496f13 2628 p2p_dbg(p2p, "No SD peer entry known");
b22128ef
JM		 2629 p2p_continue_find(p2p);
2630 return;
2631 }
2632
2633 /* Wait for response from the peer */
2634 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2635 p2p_set_timeout(p2p, 0, 200000);
2636}
2637
6b56cc2d
JS		 2638
2639/**
2640 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2641 * @p2p: P2P module context from p2p_init()
2642 */
19df9b07 2643static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2644{
2645 struct p2p_device *dev;
2646
2647 if (p2p->state != P2P_IDLE)
2648 return;
2649
2650 /*
2651 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2652 * requested.
6b56cc2d
JS		 2653 */
2654
2655 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2656 if (os_memcmp(p2p->pending_pd_devaddr,
2657 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2658 continue;
2659 if (!dev->req_config_methods)
2660 continue;
6b56cc2d 2661
ed496f13 2662 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 2663 MACSTR " (config methods 0x%x)",
2664 MAC2STR(dev->info.p2p_device_addr),
2665 dev->req_config_methods);
175171ac
JM		 2666 p2p_send_prov_disc_req(p2p, dev,
2667 dev->flags & P2P_DEV_PD_FOR_JOIN, 0);
6b56cc2d
JS		 2668 return;
2669 }
2670}
2671
2672
b22128ef
JM		 2673static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2674{
ed496f13 2675 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 2676 success);
6b56cc2d
JS		 2677
2678 /*
2679 * Postpone resetting the pending action state till after we actually
2680 * time out. This allows us to take some action like notifying any
2681 * interested parties about no response to the request.
2682 *
2683 * When the timer (below) goes off we check in IDLE, SEARCH, or
2684 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2685 * requests in, if this was still pending and then raise notification.
2686 */
b22128ef
JM		 2687
2688 if (!success) {
6b56cc2d
JS		 2689 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2690
488f4a71
JM		 2691 if (p2p->user_initiated_pd &&
2692 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2693 {
2694 /* Retry request from timeout to avoid busy loops */
2695 p2p->pending_action_state = P2P_PENDING_PD;
2696 p2p_set_timeout(p2p, 0, 50000);
2697 } else if (p2p->state != P2P_IDLE)
b22128ef 2698 p2p_continue_find(p2p);
6b56cc2d
JS		 2699 else if (p2p->user_initiated_pd) {
2700 p2p->pending_action_state = P2P_PENDING_PD;
2701 p2p_set_timeout(p2p, 0, 300000);
2702 }
b22128ef
JM		 2703 return;
2704 }
2705
6b56cc2d
JS		 2706 /*
2707 * This postponing, of resetting pending_action_state, needs to be
2708 * done only for user initiated PD requests and not internal ones.
2709 */
2710 if (p2p->user_initiated_pd)
2711 p2p->pending_action_state = P2P_PENDING_PD;
2712 else
2713 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2714
b22128ef
JM		 2715 /* Wait for response from the peer */
2716 if (p2p->state == P2P_SEARCH)
2717 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2718 p2p_set_timeout(p2p, 0, 200000);
2719}
2720
2721
2722int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
c5f10e80 2723 struct os_time *rx_time, int level, const u8 *ies,
3dfd0484 2724 size_t ies_len)
b22128ef 2725{
a5b5e830
JM		 2726 if (os_time_before(rx_time, &p2p->find_start)) {
2727 /*
2728 * The driver may have cached (e.g., in cfg80211 BSS table) the
2729 * scan results for relatively long time. To avoid reporting
2730 * stale information, update P2P peers only based on results
2731 * that have based on frames received after the last p2p_find
2732 * operation was started.
2733 */
ed496f13
JM		 2734 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
2735 " (rx_time=%u.%06u)",
a5b5e830
JM		 2736 MAC2STR(bssid), (unsigned int) rx_time->sec,
2737 (unsigned int) rx_time->usec);
2738 return 0;
2739 }
2740
c5f10e80 2741 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 2742
b22128ef
JM		 2743 return 0;
2744}
2745
2746
2747void p2p_scan_res_handled(struct p2p_data *p2p)
2748{
2749 if (!p2p->p2p_scan_running) {
ed496f13 2750 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 2751 }
2752 p2p->p2p_scan_running = 0;
2753 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2754
2755 if (p2p_run_after_scan(p2p))
2756 return;
2757 if (p2p->state == P2P_SEARCH)
2758 p2p_continue_find(p2p);
2759}
2760
2761
6d92fa6e 2762void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2763{
9675ce35
JM		 2764 u8 *len;
2765
2766#ifdef CONFIG_WIFI_DISPLAY
2767 if (p2p->wfd_ie_probe_req)
2768 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2769#endif /* CONFIG_WIFI_DISPLAY */
2770
2771 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2772 p2p_buf_add_capability(ies, p2p->dev_capab &
2773 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2774 if (dev_id)
2775 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2776 if (p2p->cfg->reg_class && p2p->cfg->channel)
2777 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2778 p2p->cfg->reg_class,
2779 p2p->cfg->channel);
2780 if (p2p->ext_listen_interval)
2781 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2782 p2p->ext_listen_interval);
2783 /* TODO: p2p_buf_add_operating_channel() if GO */
2784 p2p_buf_update_ie_hdr(ies, len);
2785}
2786
2787
206e1f42
JM		 2788size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2789{
9675ce35
JM		 2790 size_t len = 100;
2791
2792#ifdef CONFIG_WIFI_DISPLAY
2793 if (p2p && p2p->wfd_ie_probe_req)
2794 len += wpabuf_len(p2p->wfd_ie_probe_req);
2795#endif /* CONFIG_WIFI_DISPLAY */
2796
2797 return len;
206e1f42
JM		 2798}
2799
2800
b22128ef
JM		 2801int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2802{
2803 return p2p_attr_text(p2p_ie, buf, end);
2804}
2805
2806
2807static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2808{
2809 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 2810 int timeout;
b22128ef 2811
ed496f13 2812 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 2813
2814 if (dev == NULL) {
ed496f13 2815 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 2816 return;
2817 }
2818
2819 if (success) {
b22128ef
JM		 2820 if (dev->flags & P2P_DEV_USER_REJECTED) {
2821 p2p_set_state(p2p, P2P_IDLE);
2822 return;
2823 }
a1d2ab32
NKG		 2824 } else if (dev->go_neg_req_sent) {
2825 /* Cancel the increment from p2p_connect_send() on failure */
2826 dev->go_neg_req_sent--;
b22128ef
JM		 2827 }
2828
2829 if (!success &&
c5db8e51 2830 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 2831 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 2832 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 2833 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2834 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2835 p2p_send_dev_disc_req(p2p, dev);
2836 return;
2837 }
2838
2839 /*
2840 * Use P2P find, if needed, to find the other device from its listen
2841 * channel.
2842 */
2843 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 2844 timeout = success ? 500000 : 100000;
2845 if (!success && p2p->go_neg_peer &&
2846 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
2847 unsigned int r;
2848 /*
2849 * Peer is expected to wait our response and we will skip the
2850 * listen phase. Add some randomness to the wait time here to
2851 * make it less likely to hit cases where we could end up in
2852 * sync with peer not listening.
2853 */
2854 os_get_random((u8 *) &r, sizeof(r));
2855 timeout += r % 100000;
2856 }
2857 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 2858}
2859
2860
2861static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2862{
ed496f13 2863 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 2864 success);
2865 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 2866 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 2867 return;
2868 }
2869 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 2870 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 2871}
2872
2873
7800d45c
JM		 2874static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
2875 const u8 *addr)
b22128ef 2876{
ed496f13 2877 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272
JM		 2878 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2879 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2880 p2p->go_neg_peer->status);
7800d45c
JM		 2881 } else if (success) {
2882 struct p2p_device *dev;
2883 dev = p2p_get_device(p2p, addr);
2884 if (dev &&
2885 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
2886 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 2887 }
b22128ef
JM		 2888}
2889
2890
93b7ddd0
JM		 2891static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2892 enum p2p_send_action_result result)
b22128ef
JM		 2893{
2894 struct p2p_device *dev;
2895
ed496f13 2896 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
b22128ef 2897 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2898 if (result == P2P_SEND_ACTION_FAILED) {
2899 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2900 return;
2901 }
2902 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2903 /*
2904 * It looks like the TX status for GO Negotiation Confirm is
2905 * often showing failure even when the peer has actually
2906 * received the frame. Since the peer may change channels
2907 * immediately after having received the frame, we may not see
2908 * an Ack for retries, so just dropping a single frame may
2909 * trigger this. To allow the group formation to succeed if the
2910 * peer did indeed receive the frame, continue regardless of
2911 * the TX status.
2912 */
ed496f13 2913 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 2914 }
2915
2916 dev = p2p->go_neg_peer;
2917 if (dev == NULL)
2918 return;
2919
2920 p2p_go_complete(p2p, dev);
2921}
2922
2923
2924void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2925 const u8 *src, const u8 *bssid,
2926 enum p2p_send_action_result result)
b22128ef
JM		 2927{
2928 enum p2p_pending_action_state state;
93b7ddd0 2929 int success;
b22128ef 2930
ed496f13 2931 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2932 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2933 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2934 MAC2STR(bssid), result);
2935 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2936 state = p2p->pending_action_state;
2937 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2938 switch (state) {
2939 case P2P_NO_PENDING_ACTION:
63a965c3
JM		 2940 if (p2p->after_scan_tx_in_progress) {
2941 p2p->after_scan_tx_in_progress = 0;
2942 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
2943 p2p_run_after_scan(p2p))
2944 break;
2945 if (p2p->state == P2P_SEARCH) {
ed496f13 2946 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
63a965c3
JM		 2947 p2p_continue_find(p2p);
2948 }
2949 }
b22128ef
JM		 2950 break;
2951 case P2P_PENDING_GO_NEG_REQUEST:
2952 p2p_go_neg_req_cb(p2p, success);
2953 break;
2954 case P2P_PENDING_GO_NEG_RESPONSE:
2955 p2p_go_neg_resp_cb(p2p, success);
2956 break;
2957 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 2958 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 2959 break;
2960 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2961 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 2962 break;
2963 case P2P_PENDING_SD:
2964 p2p_sd_cb(p2p, success);
2965 break;
2966 case P2P_PENDING_PD:
2967 p2p_prov_disc_cb(p2p, success);
2968 break;
2969 case P2P_PENDING_INVITATION_REQUEST:
2970 p2p_invitation_req_cb(p2p, success);
2971 break;
2972 case P2P_PENDING_INVITATION_RESPONSE:
2973 p2p_invitation_resp_cb(p2p, success);
2974 break;
2975 case P2P_PENDING_DEV_DISC_REQUEST:
2976 p2p_dev_disc_req_cb(p2p, success);
2977 break;
2978 case P2P_PENDING_DEV_DISC_RESPONSE:
2979 p2p_dev_disc_resp_cb(p2p, success);
2980 break;
2981 case P2P_PENDING_GO_DISC_REQ:
2982 p2p_go_disc_req_cb(p2p, success);
2983 break;
2984 }
63a965c3
JM		 2985
2986 p2p->after_scan_tx_in_progress = 0;
b22128ef
JM		 2987}
2988
2989
2990void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2991 unsigned int duration)
2992{
2993 if (freq == p2p->pending_client_disc_freq) {
ed496f13 2994 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 2995 p2p->pending_client_disc_freq = 0;
2996 return;
2997 }
2998
2999 if (freq != p2p->pending_listen_freq) {
ed496f13 3000 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3001 freq, duration, p2p->pending_listen_freq);
3002 return;
3003 }
3004
ed496f13 3005 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3006 p2p->pending_listen_sec, p2p->pending_listen_usec,
3007 p2p->pending_listen_freq);
3008 p2p->in_listen = 1;
0b8889d8 3009 p2p->drv_in_listen = freq;
b22128ef
JM		 3010 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3011 /*
3012 * Add 20 msec extra wait to avoid race condition with driver
3013 * remain-on-channel end event, i.e., give driver more time to
3014 * complete the operation before our timeout expires.
3015 */
3016 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3017 p2p->pending_listen_usec + 20000);
3018 }
3019
3020 p2p->pending_listen_freq = 0;
3021}
3022
3023
3024int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3025{
ed496f13 3026 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3027 p2p->drv_in_listen = 0;
3028 if (p2p->in_listen)
3029 return 0; /* Internal timeout will trigger the next step */
3030
3031 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3032 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3033 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
e24cf97c
JM		 3034 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3035 return 0;
3036 }
3037
b22128ef
JM		 3038 p2p_set_state(p2p, P2P_CONNECT);
3039 p2p_connect_send(p2p, p2p->go_neg_peer);
3040 return 1;
3041 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3042 if (p2p->p2p_scan_running) {
3043 /*
3044 * Search is already in progress. This can happen if
3045 * an Action frame RX is reported immediately after
3046 * the end of a remain-on-channel operation and the
3047 * response frame to that is sent using an offchannel
3048 * operation while in p2p_find. Avoid an attempt to
3049 * restart a scan here.
3050 */
ed496f13 3051 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3052 return 1;
3053 }
3fe8b68d
JM		 3054 if (p2p->pending_listen_freq) {
3055 /*
3056 * Better wait a bit if the driver is unable to start
3057 * offchannel operation for some reason. p2p_search()
3058 * will be started from internal timeout.
3059 */
ed496f13 3060 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3061 p2p_set_timeout(p2p, 0, 100000);
3062 return 1;
3063 }
37448ede 3064 if (p2p->search_delay) {
ed496f13 3065 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3066 p2p->search_delay);
3067 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3068 (p2p->search_delay % 1000) * 1000);
3069 return 1;
3070 }
b22128ef
JM		 3071 p2p_search(p2p);
3072 return 1;
3073 }
3074
3075 return 0;
3076}
3077
3078
3079static void p2p_timeout_connect(struct p2p_data *p2p)
3080{
3081 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3082 if (p2p->go_neg_peer &&
3083 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3084 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
579a8098
JM		 3085 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3086 return;
3087 }
fb8984fd
JM		 3088 if (p2p->go_neg_peer &&
3089 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3090 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3091 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3092 p2p_connect_send(p2p, p2p->go_neg_peer);
3093 return;
3094 }
3095
b22128ef 3096 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3097 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3098}
3099
3100
3101static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3102{
3103 if (p2p->go_neg_peer) {
3104 if (p2p->drv_in_listen) {
ed496f13 3105 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3106 return;
3107 }
9dac8c3e
FM		 3108
3109 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3110 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
9dac8c3e
FM		 3111 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3112 return;
3113 }
3114
b22128ef
JM		 3115 p2p_set_state(p2p, P2P_CONNECT);
3116 p2p_connect_send(p2p, p2p->go_neg_peer);
3117 } else
3118 p2p_set_state(p2p, P2P_IDLE);
3119}
3120
3121
3122static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3123{
3124 /*
3125 * TODO: could remain constantly in Listen state for some time if there
3126 * are no other concurrent uses for the radio. For now, go to listen
3127 * state once per second to give other uses a chance to use the radio.
3128 */
3129 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
d58ed4e3 3130 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3131}
3132
3133
3134static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3135{
3136 struct p2p_device *dev = p2p->go_neg_peer;
3137
3138 if (dev == NULL) {
ed496f13 3139 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3140 return;
3141 }
3142
3143 dev->wait_count++;
3144 if (dev->wait_count >= 120) {
ed496f13 3145 p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation");
b22128ef
JM		 3146 p2p_go_neg_failed(p2p, dev, -1);
3147 return;
3148 }
3149
ed496f13 3150 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3151 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3152 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3153}
3154
3155
3156static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3157{
ed496f13 3158 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3159 if (p2p->sd_peer) {
3160 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3161 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
3162 p2p->sd_peer = NULL;
3163 }
3164 p2p_continue_find(p2p);
3165}
3166
3167
3168static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3169{
ed496f13 3170 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3171 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3172 p2p_continue_find(p2p);
3173}
3174
3175
6b56cc2d
JS		 3176static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3177{
3178 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3179
3180 /*
3181 * For user initiated PD requests that we have not gotten any responses
3182 * for while in IDLE state, we retry them a couple of times before
3183 * giving up.
3184 */
3185 if (!p2p->user_initiated_pd)
3186 return;
3187
ed496f13 3188 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 3189
3190 if (p2p->pd_retries) {
3191 p2p->pd_retries--;
3192 p2p_retry_pd(p2p);
3193 } else {
175171ac
JM		 3194 struct p2p_device *dev;
3195 int for_join = 0;
3196
3197 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3198 if (os_memcmp(p2p->pending_pd_devaddr,
3199 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3200 continue;
3201 if (dev->req_config_methods &&
3202 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3203 for_join = 1;
3204 }
3205
349b213c
JS		 3206 if (p2p->cfg->prov_disc_fail)
3207 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3208 p2p->pending_pd_devaddr,
175171ac
JM		 3209 for_join ?
3210 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3211 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3212 p2p_reset_pending_pd(p2p);
3213 }
3214}
3215
3216
b22128ef
JM		 3217static void p2p_timeout_invite(struct p2p_data *p2p)
3218{
3219 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3220 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3221 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3222 /*
3223 * Better remain on operating channel instead of listen channel
3224 * when running a group.
3225 */
ed496f13 3226 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 3227 p2p_set_timeout(p2p, 0, 100000);
3228 return;
3229 }
96beff11 3230 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3231}
3232
3233
3234static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3235{
3236 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3237 p2p_set_state(p2p, P2P_INVITE);
3238 p2p_invite_send(p2p, p2p->invite_peer,
3239 p2p->invite_go_dev_addr);
3240 } else {
3241 if (p2p->invite_peer) {
ed496f13 3242 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 3243 if (p2p->cfg->invitation_result)
3244 p2p->cfg->invitation_result(
dbca75f8
JM		 3245 p2p->cfg->cb_ctx, -1, NULL, NULL,
3246 p2p->invite_peer->info.p2p_device_addr);
b22128ef
JM		 3247 }
3248 p2p_set_state(p2p, P2P_IDLE);
3249 }
3250}
3251
3252
3253static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3254{
3255 struct p2p_data *p2p = eloop_ctx;
3256
ed496f13 3257 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3258
3259 p2p->in_listen = 0;
3260
3261 switch (p2p->state) {
3262 case P2P_IDLE:
6b56cc2d
JS		 3263 /* Check if we timed out waiting for PD req */
3264 if (p2p->pending_action_state == P2P_PENDING_PD)
3265 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3266 break;
3267 case P2P_SEARCH:
6b56cc2d
JS		 3268 /* Check if we timed out waiting for PD req */
3269 if (p2p->pending_action_state == P2P_PENDING_PD)
3270 p2p_timeout_prov_disc_req(p2p);
37448ede 3271 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 3272 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3273 p2p->search_delay);
3274 p2p->in_search_delay = 1;
3275 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3276 (p2p->search_delay % 1000) * 1000);
3277 break;
3278 }
3279 p2p->in_search_delay = 0;
b22128ef
JM		 3280 p2p_search(p2p);
3281 break;
3282 case P2P_CONNECT:
3283 p2p_timeout_connect(p2p);
3284 break;
3285 case P2P_CONNECT_LISTEN:
3286 p2p_timeout_connect_listen(p2p);
3287 break;
3288 case P2P_GO_NEG:
3289 break;
3290 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3291 /* Check if we timed out waiting for PD req */
3292 if (p2p->pending_action_state == P2P_PENDING_PD)
3293 p2p_timeout_prov_disc_req(p2p);
3294
b22128ef 3295 if (p2p->ext_listen_only) {
ed496f13 3296 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 3297 p2p->ext_listen_only = 0;
3298 p2p_set_state(p2p, P2P_IDLE);
3299 }
3300 break;
3301 case P2P_WAIT_PEER_CONNECT:
3302 p2p_timeout_wait_peer_connect(p2p);
3303 break;
3304 case P2P_WAIT_PEER_IDLE:
3305 p2p_timeout_wait_peer_idle(p2p);
3306 break;
3307 case P2P_SD_DURING_FIND:
3308 p2p_timeout_sd_during_find(p2p);
3309 break;
3310 case P2P_PROVISIONING:
3311 break;
3312 case P2P_PD_DURING_FIND:
3313 p2p_timeout_prov_disc_during_find(p2p);
3314 break;
3315 case P2P_INVITE:
3316 p2p_timeout_invite(p2p);
3317 break;
3318 case P2P_INVITE_LISTEN:
3319 p2p_timeout_invite_listen(p2p);
3320 break;
39185dfa
JM		 3321 case P2P_SEARCH_WHEN_READY:
3322 break;
99fcd404
JM		 3323 case P2P_CONTINUE_SEARCH_WHEN_READY:
3324 break;
b22128ef
JM		 3325 }
3326}
3327
3328
3329int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3330{
3331 struct p2p_device *dev;
3332
3333 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 3334 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3335 MACSTR, MAC2STR(peer_addr));
b22128ef 3336 if (dev == NULL) {
ed496f13 3337 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 3338 return -1;
3339 }
3340 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3341 dev->flags |= P2P_DEV_USER_REJECTED;
3342 return 0;
3343}
3344
3345
e5a359cf 3346const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3347{
3348 switch (method) {
3349 case WPS_NOT_READY:
3350 return "not-ready";
b22128ef
JM		 3351 case WPS_PIN_DISPLAY:
3352 return "Display";
3353 case WPS_PIN_KEYPAD:
3354 return "Keypad";
3355 case WPS_PBC:
3356 return "PBC";
3357 }
3358
3359 return "??";
3360}
3361
3362
3363static const char * p2p_go_state_text(enum p2p_go_state go_state)
3364{
3365 switch (go_state) {
3366 case UNKNOWN_GO:
3367 return "unknown";
3368 case LOCAL_GO:
3369 return "local";
3370 case REMOTE_GO:
3371 return "remote";
3372 }
3373
3374 return "??";
3375}
3376
3377
b3ffc80b
JM		 3378const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3379 const u8 *addr, int next)
b22128ef
JM		 3380{
3381 struct p2p_device *dev;
b22128ef
JM		 3382
3383 if (addr)
3384 dev = p2p_get_device(p2p, addr);
3385 else
3386 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3387
3388 if (dev && next) {
3389 dev = dl_list_first(&dev->list, struct p2p_device, list);
3390 if (&dev->list == &p2p->devices)
3391 dev = NULL;
3392 }
3393
3394 if (dev == NULL)
b3ffc80b
JM		 3395 return NULL;
3396
3397 return &dev->info;
3398}
3399
3400
3401int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3402 char *buf, size_t buflen)
3403{
3404 struct p2p_device *dev;
3405 int res;
3406 char *pos, *end;
3407 struct os_time now;
3408
3409 if (info == NULL)
b22128ef
JM		 3410 return -1;
3411
b3ffc80b
JM		 3412 dev = (struct p2p_device *) (((u8 *) info) -
3413 offsetof(struct p2p_device, info));
3414
b22128ef
JM		 3415 pos = buf;
3416 end = buf + buflen;
3417
b22128ef
JM		 3418 os_get_time(&now);
3419 res = os_snprintf(pos, end - pos,
3420 "age=%d\n"
3421 "listen_freq=%d\n"
b22128ef
JM		 3422 "wps_method=%s\n"
3423 "interface_addr=" MACSTR "\n"
3424 "member_in_go_dev=" MACSTR "\n"
3425 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3426 "go_neg_req_sent=%d\n"
3427 "go_state=%s\n"
3428 "dialog_token=%u\n"
3429 "intended_addr=" MACSTR "\n"
3430 "country=%c%c\n"
3431 "oper_freq=%d\n"
3432 "req_config_methods=0x%x\n"
10c4edde 3433 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3434 "status=%d\n"
3435 "wait_count=%u\n"
3436 "invitation_reqs=%u\n",
3437 (int) (now.sec - dev->last_seen.sec),
3438 dev->listen_freq,
b22128ef
JM		 3439 p2p_wps_method_text(dev->wps_method),
3440 MAC2STR(dev->interface_addr),
3441 MAC2STR(dev->member_in_go_dev),
3442 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3443 dev->go_neg_req_sent,
3444 p2p_go_state_text(dev->go_state),
3445 dev->dialog_token,
3446 MAC2STR(dev->intended_addr),
3447 dev->country[0] ? dev->country[0] : '_',
3448 dev->country[1] ? dev->country[1] : '_',
3449 dev->oper_freq,
3450 dev->req_config_methods,
3451 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3452 "[PROBE_REQ_ONLY]" : "",
3453 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3454 dev->flags & P2P_DEV_NOT_YET_READY ?
3455 "[NOT_YET_READY]" : "",
3456 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3457 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3458 "",
3459 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3460 "[PD_PEER_DISPLAY]" : "",
3461 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3462 "[PD_PEER_KEYPAD]" : "",
3463 dev->flags & P2P_DEV_USER_REJECTED ?
3464 "[USER_REJECTED]" : "",
3465 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3466 "[PEER_WAITING_RESPONSE]" : "",
3467 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3468 "[PREFER_PERSISTENT_GROUP]" : "",
3469 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3470 "[WAIT_GO_NEG_RESPONSE]" : "",
3471 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3472 "[WAIT_GO_NEG_CONFIRM]" : "",
3473 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3474 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3475 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3476 "[FORCE_FREQ]" : "",
3477 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3478 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3479 dev->status,
3480 dev->wait_count,
3481 dev->invitation_reqs);
3482 if (res < 0 || res >= end - pos)
3483 return pos - buf;
3484 pos += res;
3485
3486 if (dev->ext_listen_period) {
3487 res = os_snprintf(pos, end - pos,
3488 "ext_listen_period=%u\n"
3489 "ext_listen_interval=%u\n",
3490 dev->ext_listen_period,
3491 dev->ext_listen_interval);
3492 if (res < 0 || res >= end - pos)
3493 return pos - buf;
3494 pos += res;
3495 }
3496
3497 if (dev->oper_ssid_len) {
3498 res = os_snprintf(pos, end - pos,
3499 "oper_ssid=%s\n",
3500 wpa_ssid_txt(dev->oper_ssid,
3501 dev->oper_ssid_len));
3502 if (res < 0 || res >= end - pos)
3503 return pos - buf;
3504 pos += res;
3505 }
3506
9675ce35
JM		 3507#ifdef CONFIG_WIFI_DISPLAY
3508 if (dev->info.wfd_subelems) {
3509 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3510 if (res < 0 || res >= end - pos)
3511 return pos - buf;
3512 pos += res;
3513
3514 pos += wpa_snprintf_hex(pos, end - pos,
3515 wpabuf_head(dev->info.wfd_subelems),
3516 wpabuf_len(dev->info.wfd_subelems));
3517
3518 res = os_snprintf(pos, end - pos, "\n");
3519 if (res < 0 || res >= end - pos)
3520 return pos - buf;
3521 pos += res;
3522 }
3523#endif /* CONFIG_WIFI_DISPLAY */
3524
b22128ef
JM		 3525 return pos - buf;
3526}
3527
3528
b3bcc0f5
JM		 3529int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3530{
3531 return p2p_get_device(p2p, addr) != NULL;
3532}
3533
3534
b22128ef
JM		 3535void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3536{
3537 if (enabled) {
ed496f13 3538 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 3539 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3540 } else {
ed496f13 3541 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 3542 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3543 }
3544}
3545
3546
3547static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3548 u32 duration2, u32 interval2)
3549{
3550 struct wpabuf *req;
3551 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3552 u8 *len;
3553
3554 req = wpabuf_alloc(100);
3555 if (req == NULL)
3556 return NULL;
3557
3558 if (duration1 || interval1) {
3559 os_memset(&desc1, 0, sizeof(desc1));
3560 desc1.count_type = 1;
3561 desc1.duration = duration1;
3562 desc1.interval = interval1;
3563 ptr1 = &desc1;
3564
3565 if (duration2 || interval2) {
3566 os_memset(&desc2, 0, sizeof(desc2));
3567 desc2.count_type = 2;
3568 desc2.duration = duration2;
3569 desc2.interval = interval2;
3570 ptr2 = &desc2;
3571 }
3572 }
3573
3574 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3575 len = p2p_buf_add_ie_hdr(req);
3576 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3577 p2p_buf_update_ie_hdr(req, len);
3578
3579 return req;
3580}
3581
3582
3583int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3584 const u8 *own_interface_addr, unsigned int freq,
3585 u32 duration1, u32 interval1, u32 duration2,
3586 u32 interval2)
3587{
3588 struct wpabuf *req;
3589
ed496f13
JM		 3590 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
3591 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
3592 "dur2=%u int2=%u",
b22128ef
JM		 3593 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3594 freq, duration1, interval1, duration2, interval2);
3595
3596 req = p2p_build_presence_req(duration1, interval1, duration2,
3597 interval2);
3598 if (req == NULL)
3599 return -1;
3600
3601 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3602 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3603 go_interface_addr,
3604 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 3605 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3606 }
3607 wpabuf_free(req);
3608
3609 return 0;
3610}
3611
3612
3613static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3614 size_t noa_len, u8 dialog_token)
3615{
3616 struct wpabuf *resp;
3617 u8 *len;
3618
3619 resp = wpabuf_alloc(100 + noa_len);
3620 if (resp == NULL)
3621 return NULL;
3622
3623 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3624 len = p2p_buf_add_ie_hdr(resp);
3625 p2p_buf_add_status(resp, status);
3626 if (noa) {
3627 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3628 wpabuf_put_le16(resp, noa_len);
3629 wpabuf_put_data(resp, noa, noa_len);
3630 } else
3631 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3632 p2p_buf_update_ie_hdr(resp, len);
3633
3634 return resp;
3635}
3636
3637
3638static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3639 const u8 *sa, const u8 *data, size_t len,
3640 int rx_freq)
3641{
3642 struct p2p_message msg;
3643 u8 status;
3644 struct wpabuf *resp;
3645 size_t g;
3646 struct p2p_group *group = NULL;
3647 int parsed = 0;
3648 u8 noa[50];
3649 int noa_len;
3650
ed496f13 3651 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 3652
3653 for (g = 0; g < p2p->num_groups; g++) {
3654 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3655 ETH_ALEN) == 0) {
3656 group = p2p->groups[g];
3657 break;
3658 }
3659 }
3660 if (group == NULL) {
ed496f13 3661 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 3662 MACSTR, MAC2STR(da));
3663 return;
3664 }
3665
3666 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3667 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 3668 status = P2P_SC_FAIL_INVALID_PARAMS;
3669 goto fail;
3670 }
3671 parsed = 1;
3672
3673 if (msg.noa == NULL) {
ed496f13 3674 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 3675 status = P2P_SC_FAIL_INVALID_PARAMS;
3676 goto fail;
3677 }
3678
3679 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3680
3681fail:
3682 if (p2p->cfg->get_noa)
3683 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3684 sizeof(noa));
3685 else
3686 noa_len = -1;
3687 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3688 noa_len > 0 ? noa_len : 0,
3689 msg.dialog_token);
3690 if (parsed)
3691 p2p_parse_free(&msg);
3692 if (resp == NULL)
3693 return;
3694
3695 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3696 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3697 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 3698 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3699 }
3700 wpabuf_free(resp);
3701}
3702
3703
3704static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3705 const u8 *sa, const u8 *data, size_t len)
3706{
3707 struct p2p_message msg;
3708
ed496f13 3709 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 3710
3711 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3712 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 3713 return;
3714 }
3715
3716 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 3717 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 3718 p2p_parse_free(&msg);
3719 return;
3720 }
3721
3722 if (*msg.status) {
ed496f13 3723 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 3724 *msg.status);
3725 p2p_parse_free(&msg);
3726 return;
3727 }
3728
ed496f13 3729 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 3730 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3731 msg.noa, msg.noa_len);
3732 /* TODO: process NoA */
3733 p2p_parse_free(&msg);
3734}
3735
3736
3737static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3738{
3739 struct p2p_data *p2p = eloop_ctx;
3740
3741 if (p2p->ext_listen_interval) {
3742 /* Schedule next extended listen timeout */
3743 eloop_register_timeout(p2p->ext_listen_interval_sec,
3744 p2p->ext_listen_interval_usec,
3745 p2p_ext_listen_timeout, p2p, NULL);
3746 }
3747
f7a69057
JM		 3748 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3749 /*
3750 * This should not really happen, but it looks like the Listen
3751 * command may fail is something else (e.g., a scan) was
3752 * running at an inconvenient time. As a workaround, allow new
3753 * Extended Listen operation to be started.
3754 */
ed496f13 3755 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 3756 p2p->ext_listen_only = 0;
3757 p2p_set_state(p2p, P2P_IDLE);
3758 }
3759
b22128ef 3760 if (p2p->state != P2P_IDLE) {
ed496f13 3761 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3762 return;
3763 }
3764
ed496f13 3765 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 3766 p2p->ext_listen_only = 1;
3767 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 3768 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 3769 p2p->ext_listen_only = 0;
3770 }
3771}
3772
3773
3774int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3775 unsigned int interval)
3776{
3777 if (period > 65535 || interval > 65535 || period > interval ||
3778 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 3779 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
3780 period, interval);
b22128ef
JM		 3781 return -1;
3782 }
3783
3784 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3785
3786 if (interval == 0) {
ed496f13 3787 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 3788 p2p->ext_listen_period = 0;
3789 p2p->ext_listen_interval = 0;
3790 return 0;
3791 }
3792
ed496f13
JM		 3793 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
3794 period, interval);
b22128ef
JM		 3795 p2p->ext_listen_period = period;
3796 p2p->ext_listen_interval = interval;
3797 p2p->ext_listen_interval_sec = interval / 1000;
3798 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3799
3800 eloop_register_timeout(p2p->ext_listen_interval_sec,
3801 p2p->ext_listen_interval_usec,
3802 p2p_ext_listen_timeout, p2p, NULL);
3803
3804 return 0;
3805}
3806
3807
3808void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3809 const u8 *ie, size_t ie_len)
3810{
3811 struct p2p_message msg;
3812
3813 if (bssid == NULL || ie == NULL)
3814 return;
3815
3816 os_memset(&msg, 0, sizeof(msg));
3817 if (p2p_parse_ies(ie, ie_len, &msg))
3818 return;
3819 if (msg.minor_reason_code == NULL)
3820 return;
3821
ed496f13 3822 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 3823 " reason_code=%u minor_reason_code=%u",
3824 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3825
3826 p2p_parse_free(&msg);
3827}
3828
3829
3830void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3831 const u8 *ie, size_t ie_len)
3832{
3833 struct p2p_message msg;
3834
3835 if (bssid == NULL || ie == NULL)
3836 return;
3837
3838 os_memset(&msg, 0, sizeof(msg));
3839 if (p2p_parse_ies(ie, ie_len, &msg))
3840 return;
3841 if (msg.minor_reason_code == NULL)
3842 return;
3843
ed496f13 3844 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 3845 " reason_code=%u minor_reason_code=%u",
3846 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3847
3848 p2p_parse_free(&msg);
3849}
3850
3851
3852void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3853{
3854 if (enabled) {
ed496f13 3855 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 3856 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3857 } else {
ed496f13 3858 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 3859 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3860 }
3861}
3862
3863
3864int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3865{
9ccd9165 3866 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 3867 return -1;
3868
ed496f13
JM		 3869 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
3870 reg_class, channel);
b22128ef
JM		 3871 p2p->cfg->reg_class = reg_class;
3872 p2p->cfg->channel = channel;
3873
3874 return 0;
3875}
3876
3877
3878int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3879{
ed496f13 3880 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 3881 if (postfix == NULL) {
3882 p2p->cfg->ssid_postfix_len = 0;
3883 return 0;
3884 }
3885 if (len > sizeof(p2p->cfg->ssid_postfix))
3886 return -1;
3887 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3888 p2p->cfg->ssid_postfix_len = len;
3889 return 0;
3890}
3891
3892
2463ba70
JS		 3893int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3894 int cfg_op_channel)
3895{
9ccd9165 3896 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 3897 return -1;
3898
ed496f13
JM		 3899 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
3900 op_reg_class, op_channel);
2463ba70
JS		 3901 p2p->cfg->op_reg_class = op_reg_class;
3902 p2p->cfg->op_channel = op_channel;
3903 p2p->cfg->cfg_op_channel = cfg_op_channel;
3904 return 0;
3905}
3906
3907
21d996f7
JM		 3908int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
3909 const struct p2p_channel *pref_chan)
3910{
3911 struct p2p_channel *n;
3912
3913 if (pref_chan) {
3914 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
3915 if (n == NULL)
3916 return -1;
3917 os_memcpy(n, pref_chan,
3918 num_pref_chan * sizeof(struct p2p_channel));
3919 } else
3920 n = NULL;
3921
3922 os_free(p2p->cfg->pref_chan);
3923 p2p->cfg->pref_chan = n;
3924 p2p->cfg->num_pref_chan = num_pref_chan;
3925
3926 return 0;
3927}
3928
3929
b22128ef
JM		 3930int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3931 u8 *iface_addr)
3932{
3933 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3934 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3935 return -1;
3936 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3937 return 0;
3938}
80c9582a
JM		 3939
3940
4147a2cc
JM		 3941int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
3942 u8 *dev_addr)
3943{
3944 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3945 if (dev == NULL)
3946 return -1;
c5db8e51 3947 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 3948 return 0;
3949}
3950
3951
80c9582a
JM		 3952void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3953{
3954 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3955 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 3956 p2p_dbg(p2p, "Disable peer filter");
80c9582a 3957 else
ed496f13
JM		 3958 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
3959 MAC2STR(p2p->peer_filter));
80c9582a 3960}
72044390
JM		 3961
3962
3963void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3964{
ed496f13 3965 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 3966 if (p2p->cross_connect == enabled)
3967 return;
3968 p2p->cross_connect = enabled;
3969 /* TODO: may need to tear down any action group where we are GO(?) */
3970}
f8d0131a
JM		 3971
3972
3973int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3974{
3975 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3976 if (dev == NULL)
3977 return -1;
3978 if (dev->oper_freq <= 0)
3979 return -1;
3980 return dev->oper_freq;
3981}
0f66abd2
SS		 3982
3983
3984void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
3985{
ed496f13 3986 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 3987 enabled ? "enabled" : "disabled");
3988 p2p->cfg->p2p_intra_bss = enabled;
3989}
b5c9da8d
JM		 3990
3991
3992void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
3993{
ed496f13 3994 p2p_dbg(p2p, "Update channel list");
b5c9da8d
JM		 3995 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
3996}
3f9285ff
JM		 3997
3998
3999int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4000 const u8 *src, const u8 *bssid, const u8 *buf,
4001 size_t len, unsigned int wait_time)
4002{
4003 if (p2p->p2p_scan_running) {
ed496f13 4004 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
3f9285ff 4005 if (p2p->after_scan_tx) {
ed496f13 4006 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
3f9285ff
JM		 4007 os_free(p2p->after_scan_tx);
4008 }
4009 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4010 len);
4011 if (p2p->after_scan_tx == NULL)
4012 return -1;
4013 p2p->after_scan_tx->freq = freq;
4014 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4015 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4016 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4017 p2p->after_scan_tx->len = len;
4018 p2p->after_scan_tx->wait_time = wait_time;
4019 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4020 return 0;
4021 }
4022
4023 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4024 buf, len, wait_time);
4025}
7cfc4ac3
AGS		 4026
4027
4028void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4029 int freq_overall)
4030{
ed496f13
JM		 4031 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4032 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4033 p2p->best_freq_24 = freq_24;
4034 p2p->best_freq_5 = freq_5;
4035 p2p->best_freq_overall = freq_overall;
4036}
231bbd03
SS		 4037
4038
6cb27aa8
JM		 4039void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4040{
ed496f13 4041 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4042 p2p->own_freq_preference = freq;
4043}
4044
4045
231bbd03
SS		 4046const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4047{
4048 if (p2p == NULL || p2p->go_neg_peer == NULL)
4049 return NULL;
c5db8e51 4050 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4051}
c165d81e
JB		 4052
4053
4054const struct p2p_peer_info *
4055p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4056{
4057 struct p2p_device *dev;
4058
4059 if (addr) {
4060 dev = p2p_get_device(p2p, addr);
4061 if (!dev)
4062 return NULL;
4063
4064 if (!next) {
4065 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4066 return NULL;
4067
4068 return &dev->info;
4069 } else {
4070 do {
4071 dev = dl_list_first(&dev->list,
4072 struct p2p_device,
4073 list);
4074 if (&dev->list == &p2p->devices)
4075 return NULL;
4076 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4077 }
4078 } else {
4079 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4080 if (!dev)
4081 return NULL;
4082 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4083 dev = dl_list_first(&dev->list,
4084 struct p2p_device,
4085 list);
4086 if (&dev->list == &p2p->devices)
4087 return NULL;
4088 }
4089 }
4090
4091 return &dev->info;
4092}
303f60d3
JM		 4093
4094
4095int p2p_in_progress(struct p2p_data *p2p)
4096{
4097 if (p2p == NULL)
4098 return 0;
99fcd404
JM		 4099 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SEARCH_WHEN_READY ||
4100 p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY)
4101 return 2;
fc6997b3 4102 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4103}
4f219667
JM		 4104
4105
4106void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4107 u8 client_timeout)
4108{
4109 if (p2p) {
4110 p2p->go_timeout = go_timeout;
4111 p2p->client_timeout = client_timeout;
4112 }
4113}
99fcd404
JM		 4114
4115
4116void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay)
4117{
4118 if (p2p && p2p->search_delay < delay)
4119 p2p->search_delay = delay;
4120}
9675ce35
JM		 4121
4122
4123#ifdef CONFIG_WIFI_DISPLAY
4124
4125static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4126{
4127 size_t g;
4128 struct p2p_group *group;
4129
4130 for (g = 0; g < p2p->num_groups; g++) {
4131 group = p2p->groups[g];
4132 p2p_group_update_ies(group);
4133 }
4134}
4135
4136
4137int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4138{
4139 wpabuf_free(p2p->wfd_ie_beacon);
4140 p2p->wfd_ie_beacon = ie;
4141 p2p_update_wfd_ie_groups(p2p);
4142 return 0;
4143}
4144
4145
4146int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4147{
4148 wpabuf_free(p2p->wfd_ie_probe_req);
4149 p2p->wfd_ie_probe_req = ie;
4150 return 0;
4151}
4152
4153
4154int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4155{
4156 wpabuf_free(p2p->wfd_ie_probe_resp);
4157 p2p->wfd_ie_probe_resp = ie;
4158 p2p_update_wfd_ie_groups(p2p);
4159 return 0;
4160}
4161
4162
4163int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4164{
4165 wpabuf_free(p2p->wfd_ie_assoc_req);
4166 p2p->wfd_ie_assoc_req = ie;
4167 return 0;
4168}
4169
4170
4171int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4172{
4173 wpabuf_free(p2p->wfd_ie_invitation);
4174 p2p->wfd_ie_invitation = ie;
4175 return 0;
4176}
4177
4178
4179int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4180{
4181 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4182 p2p->wfd_ie_prov_disc_req = ie;
4183 return 0;
4184}
4185
4186
4187int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4188{
4189 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4190 p2p->wfd_ie_prov_disc_resp = ie;
4191 return 0;
4192}
4193
4194
4195int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4196{
4197 wpabuf_free(p2p->wfd_ie_go_neg);
4198 p2p->wfd_ie_go_neg = ie;
4199 return 0;
4200}
4201
4202
4203int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4204{
4205 wpabuf_free(p2p->wfd_dev_info);
4206 if (elem) {
4207 p2p->wfd_dev_info = wpabuf_dup(elem);
4208 if (p2p->wfd_dev_info == NULL)
4209 return -1;
4210 } else
4211 p2p->wfd_dev_info = NULL;
4212
4213 return 0;
4214}
4215
4216
4217int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4218{
4219 wpabuf_free(p2p->wfd_assoc_bssid);
4220 if (elem) {
4221 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4222 if (p2p->wfd_assoc_bssid == NULL)
4223 return -1;
4224 } else
4225 p2p->wfd_assoc_bssid = NULL;
4226
4227 return 0;
4228}
4229
4230
4231int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4232 const struct wpabuf *elem)
4233{
4234 wpabuf_free(p2p->wfd_coupled_sink_info);
4235 if (elem) {
4236 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4237 if (p2p->wfd_coupled_sink_info == NULL)
4238 return -1;
4239 } else
4240 p2p->wfd_coupled_sink_info = NULL;
4241
4242 return 0;
4243}
4244
4245#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4246
4247
4248int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4249 int max_disc_tu)
4250{
4251 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4252 return -1;
4253
4254 p2p->min_disc_int = min_disc_int;
4255 p2p->max_disc_int = max_disc_int;
4256 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 4257 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4258 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 4259
4260 return 0;
4261}
ed496f13
JM		 4262
4263
4264void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4265{
4266 va_list ap;
4267 char buf[500];
4268
4269 if (!p2p->cfg->debug_print)
4270 return;
4271
4272 va_start(ap, fmt);
4273 vsnprintf(buf, sizeof(buf), fmt, ap);
4274 buf[sizeof(buf) - 1] = '\0';
4275 va_end(ap);
4276 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4277}
4278
4279
4280void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4281{
4282 va_list ap;
4283 char buf[500];
4284
4285 if (!p2p->cfg->debug_print)
4286 return;
4287
4288 va_start(ap, fmt);
4289 vsnprintf(buf, sizeof(buf), fmt, ap);
4290 buf[sizeof(buf) - 1] = '\0';
4291 va_end(ap);
4292 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4293}
4294
4295
4296void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4297{
4298 va_list ap;
4299 char buf[500];
4300
4301 if (!p2p->cfg->debug_print)
4302 return;
4303
4304 va_start(ap, fmt);
4305 vsnprintf(buf, sizeof(buf), fmt, ap);
4306 buf[sizeof(buf) - 1] = '\0';
4307 va_end(ap);
4308 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4309}
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