]> git.ipfire.org Git - thirdparty/hostap.git/blame - src/p2p/p2p.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Split p2p_prepare_channel() into multiple functions
[thirdparty/hostap.git] / src / p2p / p2p.c
CommitLineData
b22128ef
JM		 1/*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
e22d4d95
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
b22128ef
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "common/ieee802_11_common.h"
8aebb0e4 15#include "common/wpa_ctrl.h"
b22128ef
JM		 16#include "wps/wps_i.h"
17#include "p2p_i.h"
18#include "p2p.h"
19
20
21static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
22static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
23static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
24 const u8 *sa, const u8 *data, size_t len,
25 int rx_freq);
26static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
27 const u8 *sa, const u8 *data,
28 size_t len);
29static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 30static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 31
32
40c03fd4
JM		 33/*
34 * p2p_scan recovery timeout
35 *
36 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
37 * timeout for this to avoid hitting P2P timeout unnecessarily.
38 */
39#define P2P_SCAN_TIMEOUT 35
40
b22128ef
JM		 41/**
42 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
43 * entries will be removed
44 */
45#define P2P_PEER_EXPIRATION_AGE 300
46
47#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
48
49static void p2p_expire_peers(struct p2p_data *p2p)
50{
51 struct p2p_device *dev, *n;
52 struct os_time now;
1d277f02 53 size_t i;
b22128ef
JM		 54
55 os_get_time(&now);
56 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
57 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
58 continue;
b1aebbc4
JM		 59
60 if (p2p->cfg->go_connected &&
61 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
62 dev->info.p2p_device_addr)) {
63 /*
64 * We are connected as a client to a group in which the
65 * peer is the GO, so do not expire the peer entry.
66 */
67 os_get_time(&dev->last_seen);
68 continue;
69 }
70
1d277f02
JM		 71 for (i = 0; i < p2p->num_groups; i++) {
72 if (p2p_group_is_client_connected(
73 p2p->groups[i], dev->info.p2p_device_addr))
74 break;
75 }
76 if (i < p2p->num_groups) {
77 /*
78 * The peer is connected as a client in a group where
79 * we are the GO, so do not expire the peer entry.
80 */
81 os_get_time(&dev->last_seen);
82 continue;
83 }
84
b22128ef 85 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
c5db8e51 86 "entry " MACSTR, MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 87 dl_list_del(&dev->list);
88 p2p_device_free(p2p, dev);
89 }
90}
91
92
93static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
94{
95 struct p2p_data *p2p = eloop_ctx;
96 p2p_expire_peers(p2p);
97 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
98 p2p_expiration_timeout, p2p, NULL);
99}
100
101
102static const char * p2p_state_txt(int state)
103{
104 switch (state) {
105 case P2P_IDLE:
106 return "IDLE";
107 case P2P_SEARCH:
108 return "SEARCH";
109 case P2P_CONNECT:
110 return "CONNECT";
111 case P2P_CONNECT_LISTEN:
112 return "CONNECT_LISTEN";
113 case P2P_GO_NEG:
114 return "GO_NEG";
115 case P2P_LISTEN_ONLY:
116 return "LISTEN_ONLY";
117 case P2P_WAIT_PEER_CONNECT:
118 return "WAIT_PEER_CONNECT";
119 case P2P_WAIT_PEER_IDLE:
120 return "WAIT_PEER_IDLE";
121 case P2P_SD_DURING_FIND:
122 return "SD_DURING_FIND";
123 case P2P_PROVISIONING:
124 return "PROVISIONING";
125 case P2P_PD_DURING_FIND:
126 return "PD_DURING_FIND";
127 case P2P_INVITE:
128 return "INVITE";
129 case P2P_INVITE_LISTEN:
130 return "INVITE_LISTEN";
39185dfa
JM		 131 case P2P_SEARCH_WHEN_READY:
132 return "SEARCH_WHEN_READY";
99fcd404
JM		 133 case P2P_CONTINUE_SEARCH_WHEN_READY:
134 return "CONTINUE_SEARCH_WHEN_READY";
b22128ef
JM		 135 default:
136 return "?";
137 }
138}
139
140
ec437d9e
JJ		 141u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
142{
143 struct p2p_device *dev = NULL;
144
145 if (!addr || !p2p)
146 return 0;
147
148 dev = p2p_get_device(p2p, addr);
149 if (dev)
150 return dev->wps_prov_info;
151 else
152 return 0;
153}
154
155
10531d21 156void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 157{
158 struct p2p_device *dev = NULL;
159
10531d21 160 if (!addr || !p2p)
ec437d9e
JJ		 161 return;
162
10531d21 163 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 164 if (dev)
165 dev->wps_prov_info = 0;
166}
167
168
b22128ef
JM		 169void p2p_set_state(struct p2p_data *p2p, int new_state)
170{
171 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
172 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
173 p2p->state = new_state;
174}
175
176
177void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
178{
179 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
180 "P2P: Set timeout (state=%s): %u.%06u sec",
181 p2p_state_txt(p2p->state), sec, usec);
182 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
183 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
184}
185
186
187void p2p_clear_timeout(struct p2p_data *p2p)
188{
189 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
190 p2p_state_txt(p2p->state));
191 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
192}
193
194
195void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
196 int status)
197{
198 struct p2p_go_neg_results res;
199 p2p_clear_timeout(p2p);
200 p2p_set_state(p2p, P2P_IDLE);
eb916eb8
JB		 201 if (p2p->go_neg_peer)
202 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
b22128ef
JM		 203 p2p->go_neg_peer = NULL;
204
205 os_memset(&res, 0, sizeof(res));
206 res.status = status;
207 if (peer) {
c5db8e51 208 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 209 ETH_ALEN);
210 os_memcpy(res.peer_interface_addr, peer->intended_addr,
211 ETH_ALEN);
212 }
213 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
214}
215
216
96beff11 217static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 218{
219 unsigned int r, tu;
220 int freq;
221 struct wpabuf *ies;
222
223 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
224 "P2P: Starting short listen state (state=%s)",
225 p2p_state_txt(p2p->state));
226
227 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
228 p2p->cfg->channel);
229 if (freq < 0) {
230 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
231 "P2P: Unknown regulatory class/channel");
232 return;
233 }
234
235 os_get_random((u8 *) &r, sizeof(r));
236 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
237 p2p->min_disc_int) * 100;
96beff11
JM		 238 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
239 tu = p2p->max_disc_tu;
240 if (!dev_disc && tu < 100)
241 tu = 100; /* Need to wait in non-device discovery use cases */
242 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
243 tu = p2p->cfg->max_listen * 1000 / 1024;
244
245 if (tu == 0) {
246 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip listen state "
247 "since duration was 0 TU");
248 p2p_set_timeout(p2p, 0, 0);
249 return;
250 }
b22128ef
JM		 251
252 p2p->pending_listen_freq = freq;
253 p2p->pending_listen_sec = 0;
254 p2p->pending_listen_usec = 1024 * tu;
255
256 ies = p2p_build_probe_resp_ies(p2p);
257 if (ies == NULL)
258 return;
259
260 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
261 ies) < 0) {
262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
263 "P2P: Failed to start listen mode");
264 p2p->pending_listen_freq = 0;
265 }
266 wpabuf_free(ies);
267}
268
269
270int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
271{
272 int freq;
273 struct wpabuf *ies;
274
275 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
276 "P2P: Going to listen(only) state");
277
278 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
279 p2p->cfg->channel);
280 if (freq < 0) {
281 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
282 "P2P: Unknown regulatory class/channel");
283 return -1;
284 }
285
286 p2p->pending_listen_freq = freq;
287 p2p->pending_listen_sec = timeout / 1000;
288 p2p->pending_listen_usec = (timeout % 1000) * 1000;
289
290 if (p2p->p2p_scan_running) {
5b9cecaf 291 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
d9bdba9f
JM		 292 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
293 "P2P: p2p_scan running - connect is already "
294 "pending - skip listen");
295 return 0;
296 }
b22128ef
JM		 297 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
298 "P2P: p2p_scan running - delay start of listen state");
299 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
300 return 0;
301 }
302
303 ies = p2p_build_probe_resp_ies(p2p);
304 if (ies == NULL)
305 return -1;
306
307 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
308 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
309 "P2P: Failed to start listen mode");
310 p2p->pending_listen_freq = 0;
311 wpabuf_free(ies);
312 return -1;
313 }
314 wpabuf_free(ies);
315
316 p2p_set_state(p2p, P2P_LISTEN_ONLY);
317
318 return 0;
319}
320
321
322static void p2p_device_clear_reported(struct p2p_data *p2p)
323{
324 struct p2p_device *dev;
325 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
326 dev->flags &= ~P2P_DEV_REPORTED;
327}
328
329
330/**
331 * p2p_get_device - Fetch a peer entry
332 * @p2p: P2P module context from p2p_init()
333 * @addr: P2P Device Address of the peer
334 * Returns: Pointer to the device entry or %NULL if not found
335 */
336struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
337{
338 struct p2p_device *dev;
339 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 340 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 341 return dev;
342 }
343 return NULL;
344}
345
346
347/**
348 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
349 * @p2p: P2P module context from p2p_init()
350 * @addr: P2P Interface Address of the peer
351 * Returns: Pointer to the device entry or %NULL if not found
352 */
353struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
354 const u8 *addr)
355{
356 struct p2p_device *dev;
357 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
358 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
359 return dev;
360 }
361 return NULL;
362}
363
364
365/**
366 * p2p_create_device - Create a peer entry
367 * @p2p: P2P module context from p2p_init()
368 * @addr: P2P Device Address of the peer
369 * Returns: Pointer to the device entry or %NULL on failure
370 *
371 * If there is already an entry for the peer, it will be returned instead of
372 * creating a new one.
373 */
374static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
375 const u8 *addr)
376{
377 struct p2p_device *dev, *oldest = NULL;
378 size_t count = 0;
379
380 dev = p2p_get_device(p2p, addr);
381 if (dev)
382 return dev;
383
384 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
385 count++;
386 if (oldest == NULL ||
387 os_time_before(&dev->last_seen, &oldest->last_seen))
388 oldest = dev;
389 }
390 if (count + 1 > p2p->cfg->max_peers && oldest) {
391 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
392 "P2P: Remove oldest peer entry to make room for a new "
393 "peer");
394 dl_list_del(&oldest->list);
395 p2p_device_free(p2p, oldest);
396 }
397
398 dev = os_zalloc(sizeof(*dev));
399 if (dev == NULL)
400 return NULL;
401 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 402 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 403
404 return dev;
405}
406
407
408static void p2p_copy_client_info(struct p2p_device *dev,
409 struct p2p_client_info *cli)
410{
c5db8e51
KRK		 411 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
412 dev->info.device_name[cli->dev_name_len] = '\0';
413 dev->info.dev_capab = cli->dev_capab;
414 dev->info.config_methods = cli->config_methods;
415 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 416 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
417 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
418 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 419}
420
421
422static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
423 const u8 *go_interface_addr, int freq,
424 const u8 *gi, size_t gi_len)
425{
426 struct p2p_group_info info;
427 size_t c;
428 struct p2p_device *dev;
429
430 if (gi == NULL)
431 return 0;
432
433 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
434 return -1;
435
436 /*
437 * Clear old data for this group; if the devices are still in the
438 * group, the information will be restored in the loop following this.
439 */
440 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 441 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 442 ETH_ALEN) == 0) {
443 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
444 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
445 }
446 }
447
448 for (c = 0; c < info.num_clients; c++) {
449 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 450 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
451 ETH_ALEN) == 0)
452 continue; /* ignore our own entry */
b22128ef
JM		 453 dev = p2p_get_device(p2p, cli->p2p_device_addr);
454 if (dev) {
b22128ef 455 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 456 P2P_DEV_PROBE_REQ_ONLY)) {
457 /*
458 * Update information since we have not
459 * received this directly from the client.
460 */
b22128ef 461 p2p_copy_client_info(dev, cli);
f33bc035
JM		 462 } else {
463 /*
464 * Need to update P2P Client Discoverability
465 * flag since it is valid only in P2P Group
466 * Info attribute.
467 */
468 dev->info.dev_capab &=
469 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
470 dev->info.dev_capab |=
471 cli->dev_capab &
472 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
473 }
b22128ef
JM		 474 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
475 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
476 }
477 } else {
478 dev = p2p_create_device(p2p, cli->p2p_device_addr);
479 if (dev == NULL)
480 continue;
481 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
482 p2p_copy_client_info(dev, cli);
483 dev->oper_freq = freq;
c5db8e51
KRK		 484 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
485 dev->info.p2p_device_addr,
8fd7dc1b
JB		 486 &dev->info, 1);
487 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 488 }
489
490 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
491 ETH_ALEN);
492 os_get_time(&dev->last_seen);
493 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
494 os_memcpy(dev->member_in_go_iface, go_interface_addr,
495 ETH_ALEN);
496 }
497
498 return 0;
499}
500
501
b67d0d9e
JM		 502static void p2p_copy_wps_info(struct p2p_device *dev, int probe_req,
503 const struct p2p_message *msg)
504{
505 os_memcpy(dev->info.device_name, msg->device_name,
506 sizeof(dev->info.device_name));
507
508 if (msg->manufacturer &&
509 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
510 os_memset(dev->info.manufacturer, 0,
511 sizeof(dev->info.manufacturer));
512 os_memcpy(dev->info.manufacturer, msg->manufacturer,
513 msg->manufacturer_len);
514 }
515
516 if (msg->model_name &&
517 msg->model_name_len < sizeof(dev->info.model_name)) {
518 os_memset(dev->info.model_name, 0,
519 sizeof(dev->info.model_name));
520 os_memcpy(dev->info.model_name, msg->model_name,
521 msg->model_name_len);
522 }
523
524 if (msg->model_number &&
525 msg->model_number_len < sizeof(dev->info.model_number)) {
526 os_memset(dev->info.model_number, 0,
527 sizeof(dev->info.model_number));
528 os_memcpy(dev->info.model_number, msg->model_number,
529 msg->model_number_len);
530 }
531
532 if (msg->serial_number &&
533 msg->serial_number_len < sizeof(dev->info.serial_number)) {
534 os_memset(dev->info.serial_number, 0,
535 sizeof(dev->info.serial_number));
536 os_memcpy(dev->info.serial_number, msg->serial_number,
537 msg->serial_number_len);
538 }
539
540 if (msg->pri_dev_type)
541 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
542 sizeof(dev->info.pri_dev_type));
543 else if (msg->wps_pri_dev_type)
544 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
545 sizeof(dev->info.pri_dev_type));
546
547 if (msg->wps_sec_dev_type_list) {
548 os_memcpy(dev->info.wps_sec_dev_type_list,
549 msg->wps_sec_dev_type_list,
550 msg->wps_sec_dev_type_list_len);
551 dev->info.wps_sec_dev_type_list_len =
552 msg->wps_sec_dev_type_list_len;
553 }
554
555 if (msg->capability) {
f33bc035
JM		 556 /*
557 * P2P Client Discoverability bit is reserved in all frames
558 * that use this function, so do not change its value here.
559 */
560 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
561 dev->info.dev_capab |= msg->capability[0] &
562 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 563 dev->info.group_capab = msg->capability[1];
564 }
565
566 if (msg->ext_listen_timing) {
567 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
568 dev->ext_listen_interval =
569 WPA_GET_LE16(msg->ext_listen_timing + 2);
570 }
571
572 if (!probe_req) {
573 dev->info.config_methods = msg->config_methods ?
574 msg->config_methods : msg->wps_config_methods;
575 }
576}
577
578
b22128ef 579/**
c98b83f2 580 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 581 * @p2p: P2P module context from p2p_init()
582 * @addr: Source address of Beacon or Probe Response frame (may be either
583 * P2P Device Address or P2P Interface Address)
584 * @level: Signal level (signal strength of the received frame from the peer)
585 * @freq: Frequency on which the Beacon or Probe Response frame was received
3dfd0484 586 * @age_ms: Age of the information in milliseconds
b22128ef
JM		 587 * @ies: IEs from the Beacon or Probe Response frame
588 * @ies_len: Length of ies buffer in octets
c98b83f2 589 * @scan_res: Whether this was based on scan results
b22128ef
JM		 590 * Returns: 0 on success, -1 on failure
591 *
592 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 593 * to the peer table. This function can also be used with some other frames
594 * like Provision Discovery Request that contains P2P Capability and P2P Device
595 * Info attributes.
b22128ef 596 */
3dfd0484
YD		 597int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
598 unsigned int age_ms, int level, const u8 *ies,
599 size_t ies_len, int scan_res)
b22128ef
JM		 600{
601 struct p2p_device *dev;
602 struct p2p_message msg;
603 const u8 *p2p_dev_addr;
6f2c0607 604 int i;
3dfd0484 605 struct os_time time_now, time_tmp_age, entry_ts;
b22128ef
JM		 606
607 os_memset(&msg, 0, sizeof(msg));
608 if (p2p_parse_ies(ies, ies_len, &msg)) {
609 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
610 "P2P: Failed to parse P2P IE for a device entry");
611 p2p_parse_free(&msg);
612 return -1;
613 }
614
615 if (msg.p2p_device_addr)
616 p2p_dev_addr = msg.p2p_device_addr;
617 else if (msg.device_id)
618 p2p_dev_addr = msg.device_id;
619 else {
620 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
621 "P2P: Ignore scan data without P2P Device Info or "
622 "P2P Device Id");
623 p2p_parse_free(&msg);
624 return -1;
625 }
626
80c9582a
JM		 627 if (!is_zero_ether_addr(p2p->peer_filter) &&
628 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
629 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
630 "filter for " MACSTR " due to peer filter",
631 MAC2STR(p2p_dev_addr));
632 return 0;
633 }
634
b22128ef
JM		 635 dev = p2p_create_device(p2p, p2p_dev_addr);
636 if (dev == NULL) {
637 p2p_parse_free(&msg);
638 return -1;
639 }
3dfd0484
YD		 640
641 os_get_time(&time_now);
642 time_tmp_age.sec = age_ms / 1000;
643 time_tmp_age.usec = (age_ms % 1000) * 1000;
644 os_time_sub(&time_now, &time_tmp_age, &entry_ts);
645
646 /*
647 * Update the device entry only if the new peer
648 * entry is newer than the one previously stored.
649 */
650 if (dev->last_seen.usec > 0 &&
651 os_time_before(&entry_ts, &dev->last_seen))
652 return -1;
653
654 os_memcpy(&dev->last_seen, &entry_ts, sizeof(struct os_time));
655
b22128ef
JM		 656 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
657
658 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
659 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
660 if (msg.ssid &&
661 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
662 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
663 != 0)) {
664 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
665 dev->oper_ssid_len = msg.ssid[1];
666 }
667
668 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
669 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
670 int ds_freq;
671 if (*msg.ds_params == 14)
672 ds_freq = 2484;
673 else
674 ds_freq = 2407 + *msg.ds_params * 5;
675 if (freq != ds_freq) {
676 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
677 "P2P: Update Listen frequency based on DS "
678 "Parameter Set IE: %d -> %d MHz",
679 freq, ds_freq);
680 freq = ds_freq;
681 }
682 }
683
c98b83f2 684 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
b22128ef
JM		 685 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
686 "P2P: Update Listen frequency based on scan "
687 "results (" MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 688 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
689 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 690 }
c98b83f2
JM		 691 if (scan_res) {
692 dev->listen_freq = freq;
693 if (msg.group_info)
694 dev->oper_freq = freq;
695 }
6402fc43 696 dev->info.level = level;
b22128ef 697
b67d0d9e 698 p2p_copy_wps_info(dev, 0, &msg);
e57ae6e1 699
10c5d2a5 700 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 701 wpabuf_free(dev->info.wps_vendor_ext[i]);
702 dev->info.wps_vendor_ext[i] = NULL;
703 }
704
10c5d2a5 705 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 706 if (msg.wps_vendor_ext[i] == NULL)
707 break;
708 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
709 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
710 if (dev->info.wps_vendor_ext[i] == NULL)
711 break;
712 }
713
9675ce35
JM		 714 if (msg.wfd_subelems) {
715 wpabuf_free(dev->info.wfd_subelems);
716 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
717 }
718
c98b83f2
JM		 719 if (scan_res) {
720 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
721 msg.group_info, msg.group_info_len);
722 }
b22128ef
JM		 723
724 p2p_parse_free(&msg);
725
726 if (p2p_pending_sd_req(p2p, dev))
727 dev->flags |= P2P_DEV_SD_SCHEDULE;
728
729 if (dev->flags & P2P_DEV_REPORTED)
730 return 0;
731
732 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
733 "P2P: Peer found with Listen frequency %d MHz", freq);
734 if (dev->flags & P2P_DEV_USER_REJECTED) {
735 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
736 "P2P: Do not report rejected device");
737 return 0;
738 }
8fd7dc1b
JB		 739
740 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
741 !(dev->flags & P2P_DEV_REPORTED_ONCE));
742 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 743
744 return 0;
745}
746
747
748static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
749{
6f2c0607
JMB		 750 int i;
751
5cfda25e
JJ		 752 if (p2p->go_neg_peer == dev) {
753 /*
754 * If GO Negotiation is in progress, report that it has failed.
755 */
756 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 757 p2p->go_neg_peer = NULL;
5cfda25e 758 }
b22128ef
JM		 759 if (p2p->invite_peer == dev)
760 p2p->invite_peer = NULL;
761 if (p2p->sd_peer == dev)
762 p2p->sd_peer = NULL;
763 if (p2p->pending_client_disc_go == dev)
764 p2p->pending_client_disc_go = NULL;
765
f5fc6032
AC		 766 /* dev_lost() device, but only if it was previously dev_found() */
767 if (dev->flags & P2P_DEV_REPORTED_ONCE)
768 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
769 dev->info.p2p_device_addr);
56eeb8f2 770
10c5d2a5 771 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 772 wpabuf_free(dev->info.wps_vendor_ext[i]);
773 dev->info.wps_vendor_ext[i] = NULL;
774 }
775
9675ce35
JM		 776 wpabuf_free(dev->info.wfd_subelems);
777
b22128ef
JM		 778 os_free(dev);
779}
780
781
782static int p2p_get_next_prog_freq(struct p2p_data *p2p)
783{
784 struct p2p_channels *c;
785 struct p2p_reg_class *cla;
786 size_t cl, ch;
787 int found = 0;
788 u8 reg_class;
789 u8 channel;
790 int freq;
791
792 c = &p2p->cfg->channels;
793 for (cl = 0; cl < c->reg_classes; cl++) {
794 cla = &c->reg_class[cl];
795 if (cla->reg_class != p2p->last_prog_scan_class)
796 continue;
797 for (ch = 0; ch < cla->channels; ch++) {
798 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
799 found = 1;
800 break;
801 }
802 }
803 if (found)
804 break;
805 }
806
807 if (!found) {
808 /* Start from beginning */
809 reg_class = c->reg_class[0].reg_class;
810 channel = c->reg_class[0].channel[0];
811 } else {
812 /* Pick the next channel */
813 ch++;
814 if (ch == cla->channels) {
815 cl++;
816 if (cl == c->reg_classes)
817 cl = 0;
818 ch = 0;
819 }
820 reg_class = c->reg_class[cl].reg_class;
821 channel = c->reg_class[cl].channel[ch];
822 }
823
824 freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
825 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
826 "channel: reg_class %u channel %u -> %d MHz",
827 reg_class, channel, freq);
828 p2p->last_prog_scan_class = reg_class;
829 p2p->last_prog_scan_chan = channel;
830
831 if (freq == 2412 || freq == 2437 || freq == 2462)
832 return 0; /* No need to add social channels */
833 return freq;
834}
835
836
837static void p2p_search(struct p2p_data *p2p)
838{
839 int freq = 0;
840 enum p2p_scan_type type;
360182ed 841 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 842 int res;
b22128ef
JM		 843
844 if (p2p->drv_in_listen) {
845 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
846 "in Listen state - wait for it to end before "
847 "continuing");
848 return;
849 }
850 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
851
e6ecfc4f
JB		 852 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
853 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef
JM		 854 type = P2P_SCAN_SOCIAL_PLUS_ONE;
855 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
856 "(+ freq %u)", freq);
857 } else {
858 type = P2P_SCAN_SOCIAL;
859 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
860 }
861
99fcd404
JM		 862 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
863 p2p->num_req_dev_types, p2p->req_dev_types,
864 p2p->find_dev_id, pw_id);
865 if (res < 0) {
b22128ef
JM		 866 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
867 "P2P: Scan request failed");
868 p2p_continue_find(p2p);
99fcd404
JM		 869 } else if (res == 1) {
870 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
871 "p2p_scan at this point - will try again after "
872 "previous scan completes");
873 p2p_set_state(p2p, P2P_CONTINUE_SEARCH_WHEN_READY);
40c03fd4
JM		 874 } else {
875 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
876 p2p->p2p_scan_running = 1;
877 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
878 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
879 p2p, NULL);
b22128ef
JM		 880 }
881}
882
883
884static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
885{
886 struct p2p_data *p2p = eloop_ctx;
887 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
888 p2p_stop_find(p2p);
889}
890
891
892static int p2p_run_after_scan(struct p2p_data *p2p)
893{
894 struct p2p_device *dev;
895 enum p2p_after_scan op;
896
3f9285ff 897 if (p2p->after_scan_tx) {
3f9285ff
JM		 898 /* TODO: schedule p2p_run_after_scan to be called from TX
899 * status callback(?) */
900 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
901 "Action frame at p2p_scan completion");
46eeedac
JM		 902 p2p->cfg->send_action(p2p->cfg->cb_ctx,
903 p2p->after_scan_tx->freq,
904 p2p->after_scan_tx->dst,
905 p2p->after_scan_tx->src,
906 p2p->after_scan_tx->bssid,
907 (u8 *) (p2p->after_scan_tx + 1),
908 p2p->after_scan_tx->len,
909 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 910 os_free(p2p->after_scan_tx);
911 p2p->after_scan_tx = NULL;
912 return 1;
913 }
914
b22128ef
JM		 915 op = p2p->start_after_scan;
916 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
917 switch (op) {
918 case P2P_AFTER_SCAN_NOTHING:
919 break;
920 case P2P_AFTER_SCAN_LISTEN:
921 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
922 "requested Listen state");
923 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
924 p2p->pending_listen_usec / 1000);
925 return 1;
926 case P2P_AFTER_SCAN_CONNECT:
927 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
928 "requested connect with " MACSTR,
929 MAC2STR(p2p->after_scan_peer));
930 dev = p2p_get_device(p2p, p2p->after_scan_peer);
931 if (dev == NULL) {
932 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
933 "known anymore");
934 break;
935 }
936 p2p_connect_send(p2p, dev);
937 return 1;
938 }
939
940 return 0;
941}
942
943
b22128ef
JM		 944static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
945{
946 struct p2p_data *p2p = eloop_ctx;
947 int running;
948 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
949 "(running=%d)", p2p->p2p_scan_running);
950 running = p2p->p2p_scan_running;
951 /* Make sure we recover from missed scan results callback */
952 p2p->p2p_scan_running = 0;
953
954 if (running)
955 p2p_run_after_scan(p2p);
956}
957
958
046ef4aa
JMB		 959static void p2p_free_req_dev_types(struct p2p_data *p2p)
960{
961 p2p->num_req_dev_types = 0;
962 os_free(p2p->req_dev_types);
963 p2p->req_dev_types = NULL;
964}
965
966
b22128ef 967int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 968 enum p2p_discovery_type type,
6d92fa6e 969 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 970 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 971{
972 int res;
973
974 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
975 type);
976 if (p2p->p2p_scan_running) {
977 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
978 "already running");
979 }
046ef4aa
JMB		 980
981 p2p_free_req_dev_types(p2p);
982 if (req_dev_types && num_req_dev_types) {
983 p2p->req_dev_types = os_malloc(num_req_dev_types *
984 WPS_DEV_TYPE_LEN);
985 if (p2p->req_dev_types == NULL)
986 return -1;
987 os_memcpy(p2p->req_dev_types, req_dev_types,
988 num_req_dev_types * WPS_DEV_TYPE_LEN);
989 p2p->num_req_dev_types = num_req_dev_types;
990 }
991
6d92fa6e
JM		 992 if (dev_id) {
993 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
994 p2p->find_dev_id = p2p->find_dev_id_buf;
995 } else
996 p2p->find_dev_id = NULL;
997
b22128ef
JM		 998 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
999 p2p_clear_timeout(p2p);
1000 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1001 p2p->find_type = type;
1002 p2p_device_clear_reported(p2p);
1003 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1004 p2p->search_delay = search_delay;
1005 p2p->in_search_delay = 0;
b22128ef 1006 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1007 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1008 if (timeout)
1009 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1010 p2p, NULL);
1011 switch (type) {
1012 case P2P_FIND_START_WITH_FULL:
1013 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1014 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1015 p2p->num_req_dev_types,
360182ed
JM		 1016 p2p->req_dev_types, dev_id,
1017 DEV_PW_DEFAULT);
b22128ef
JM		 1018 break;
1019 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1020 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1021 p2p->num_req_dev_types,
360182ed
JM		 1022 p2p->req_dev_types, dev_id,
1023 DEV_PW_DEFAULT);
b22128ef
JM		 1024 break;
1025 default:
1026 return -1;
1027 }
1028
1029 if (res == 0) {
1030 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
1031 p2p->p2p_scan_running = 1;
1032 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1033 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1034 p2p, NULL);
39185dfa
JM		 1035 } else if (res == 1) {
1036 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
1037 "p2p_scan at this point - will try again after "
1038 "previous scan completes");
1039 res = 0;
1040 p2p_set_state(p2p, P2P_SEARCH_WHEN_READY);
1041 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1042 } else {
1043 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
1044 "p2p_scan");
0c96fd6d
JM		 1045 p2p_set_state(p2p, P2P_IDLE);
1046 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1047 }
1048
1049 return res;
1050}
1051
1052
39185dfa
JM		 1053int p2p_other_scan_completed(struct p2p_data *p2p)
1054{
99fcd404
JM		 1055 if (p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY) {
1056 p2p_set_state(p2p, P2P_SEARCH);
1057 p2p_search(p2p);
1058 return 1;
1059 }
39185dfa
JM		 1060 if (p2p->state != P2P_SEARCH_WHEN_READY)
1061 return 0;
1062 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting pending P2P find "
1063 "now that previous scan was completed");
1064 if (p2p_find(p2p, p2p->last_p2p_find_timeout, p2p->find_type,
6d92fa6e 1065 p2p->num_req_dev_types, p2p->req_dev_types,
37448ede 1066 p2p->find_dev_id, p2p->search_delay) < 0)
39185dfa
JM		 1067 return 0;
1068 return 1;
1069}
1070
1071
0b8889d8 1072void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef
JM		 1073{
1074 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
1075 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1076 p2p_clear_timeout(p2p);
8aebb0e4
JJ		 1077 if (p2p->state == P2P_SEARCH)
1078 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, P2P_EVENT_FIND_STOPPED);
b22128ef 1079 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1080 p2p_free_req_dev_types(p2p);
b22128ef
JM		 1081 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1082 p2p->go_neg_peer = NULL;
1083 p2p->sd_peer = NULL;
1084 p2p->invite_peer = NULL;
1a9c618d
JM		 1085 p2p_stop_listen_for_freq(p2p, freq);
1086}
1087
1088
1089void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1090{
0b8889d8
JM		 1091 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
1092 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip stop_listen "
1093 "since we are on correct channel for response");
1094 return;
1095 }
1a9c618d
JM		 1096 if (p2p->in_listen) {
1097 p2p->in_listen = 0;
1098 p2p_clear_timeout(p2p);
1099 }
54b8f994
JM		 1100 if (p2p->drv_in_listen) {
1101 /*
1102 * The driver may not deliver callback to p2p_listen_end()
1103 * when the operation gets canceled, so clear the internal
1104 * variable that is tracking driver state.
1105 */
1106 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear "
1107 "drv_in_listen (%d)", p2p->drv_in_listen);
1108 p2p->drv_in_listen = 0;
1109 }
b22128ef
JM		 1110 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1111}
1112
1113
0b8889d8
JM		 1114void p2p_stop_find(struct p2p_data *p2p)
1115{
1116 p2p_stop_find_for_freq(p2p, 0);
1117}
1118
1119
e28c226d
JM		 1120static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1121 unsigned int force_freq,
1122 unsigned int pref_freq)
1123{
1124 u8 op_class, op_channel;
1125 unsigned int freq = force_freq ? force_freq : pref_freq;
1126
1127 if (p2p_freq_to_channel(p2p->cfg->country, freq,
1128 &op_class, &op_channel) < 0) {
1129 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1130 "P2P: Unsupported frequency %u MHz", freq);
1131 return -1;
1132 }
1133
1134 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel)) {
1135 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1136 "P2P: Frequency %u MHz (oper_class %u channel %u) not "
1137 "allowed for P2P", freq, op_class, op_channel);
1138 return -1;
1139 }
1140
1141 p2p->op_reg_class = op_class;
1142 p2p->op_channel = op_channel;
1143
1144 if (force_freq) {
1145 p2p->channels.reg_classes = 1;
1146 p2p->channels.reg_class[0].channels = 1;
1147 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1148 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1149 } else {
1150 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1151 sizeof(struct p2p_channels));
1152 }
1153
1154 return 0;
1155}
1156
1157
1158static void p2p_prepare_channel_best(struct p2p_data *p2p)
1159{
1160 u8 op_class, op_channel;
1161
1162 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1163 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
1164 p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_overall,
1165 &op_class, &op_channel) == 0) {
1166 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best "
1167 "overall channel as operating channel preference");
1168 p2p->op_reg_class = op_class;
1169 p2p->op_channel = op_channel;
1170 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1171 p2p_supported_freq(p2p, p2p->best_freq_5) &&
1172 p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_5,
1173 &op_class, &op_channel) == 0) {
1174 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best 5 GHz "
1175 "channel as operating channel preference");
1176 p2p->op_reg_class = op_class;
1177 p2p->op_channel = op_channel;
1178 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1179 p2p_supported_freq(p2p, p2p->best_freq_24) &&
1180 p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_24,
1181 &op_class, &op_channel) == 0) {
1182 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best 2.4 "
1183 "GHz channel as operating channel preference");
1184 p2p->op_reg_class = op_class;
1185 p2p->op_channel = op_channel;
1186 } else {
1187 p2p->op_reg_class = p2p->cfg->op_reg_class;
1188 p2p->op_channel = p2p->cfg->op_channel;
1189 }
1190
1191 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1192 sizeof(struct p2p_channels));
1193}
1194
1195
a5830ede
JM		 1196/**
1197 * p2p_prepare_channel - Select operating channel for GO Negotiation
1198 * @p2p: P2P module context from p2p_init()
1199 * @dev: Selected peer device
1200 * @force_freq: Forced frequency in MHz or 0 if not forced
1201 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1202 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1203 *
1204 * This function is used to do initial operating channel selection for GO
1205 * Negotiation prior to having received peer information. The selected channel
1206 * may be further optimized in p2p_reselect_channel() once the peer information
1207 * is available.
1208 */
92ac756c
JM		 1209static int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
1210 unsigned int force_freq, unsigned int pref_freq)
b22128ef 1211{
04a3e69d 1212 if (force_freq || pref_freq) {
e28c226d 1213 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq) < 0)
1e19f734 1214 return -1;
b22128ef 1215 } else {
e28c226d 1216 p2p_prepare_channel_best(p2p);
b22128ef
JM		 1217 }
1218 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1219 "P2P: Own preference for operation channel: "
7cfc4ac3 1220 "Operating Class %u Channel %u%s",
b22128ef
JM		 1221 p2p->op_reg_class, p2p->op_channel,
1222 force_freq ? " (forced)" : "");
1223
92ac756c
JM		 1224 if (force_freq)
1225 dev->flags |= P2P_DEV_FORCE_FREQ;
1226 else
1227 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1228
7861cb08
JM		 1229 return 0;
1230}
1231
1232
acc247b2
JM		 1233static void p2p_set_dev_persistent(struct p2p_device *dev,
1234 int persistent_group)
1235{
1236 switch (persistent_group) {
1237 case 0:
1238 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1239 P2P_DEV_PREFER_PERSISTENT_RECONN);
1240 break;
1241 case 1:
1242 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1243 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1244 break;
1245 case 2:
1246 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1247 P2P_DEV_PREFER_PERSISTENT_RECONN;
1248 break;
1249 }
1250}
1251
1252
7861cb08
JM		 1253int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1254 enum p2p_wps_method wps_method,
1255 int go_intent, const u8 *own_interface_addr,
23c84252 1256 unsigned int force_freq, int persistent_group,
3bc462cb 1257 const u8 *force_ssid, size_t force_ssid_len,
04a3e69d 1258 int pd_before_go_neg, unsigned int pref_freq)
7861cb08
JM		 1259{
1260 struct p2p_device *dev;
1261
1262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1263 "P2P: Request to start group negotiation - peer=" MACSTR
1264 " GO Intent=%d Intended Interface Address=" MACSTR
3bc462cb 1265 " wps_method=%d persistent_group=%d pd_before_go_neg=%d",
7861cb08 1266 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
3bc462cb 1267 wps_method, persistent_group, pd_before_go_neg);
7861cb08 1268
b22128ef
JM		 1269 dev = p2p_get_device(p2p, peer_addr);
1270 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
1271 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1272 "P2P: Cannot connect to unknown P2P Device " MACSTR,
1273 MAC2STR(peer_addr));
1274 return -1;
1275 }
1276
92ac756c
JM		 1277 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1278 return -1;
1279
b22128ef 1280 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1281 if (!(dev->info.dev_capab &
1282 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
b22128ef
JM		 1283 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1284 "P2P: Cannot connect to P2P Device " MACSTR
1285 " that is in a group and is not discoverable",
1286 MAC2STR(peer_addr));
1287 return -1;
1288 }
1289 if (dev->oper_freq <= 0) {
1290 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1291 "P2P: Cannot connect to P2P Device " MACSTR
1292 " with incomplete information",
1293 MAC2STR(peer_addr));
1294 return -1;
1295 }
1296
1297 /*
1298 * First, try to connect directly. If the peer does not
1299 * acknowledge frames, assume it is sleeping and use device
1300 * discoverability via the GO at that point.
1301 */
1302 }
1303
23c84252
JM		 1304 p2p->ssid_set = 0;
1305 if (force_ssid) {
1306 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1307 force_ssid, force_ssid_len);
1308 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1309 p2p->ssid_len = force_ssid_len;
1310 p2p->ssid_set = 1;
1311 }
1312
b22128ef
JM		 1313 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1314 dev->flags &= ~P2P_DEV_USER_REJECTED;
1315 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1316 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1317 if (pd_before_go_neg)
1318 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
1319 else
1320 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
9dac8c3e 1321 dev->connect_reqs = 0;
b22128ef
JM		 1322 dev->go_neg_req_sent = 0;
1323 dev->go_state = UNKNOWN_GO;
acc247b2 1324 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1325 p2p->go_intent = go_intent;
1326 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1327
1328 if (p2p->state != P2P_IDLE)
1329 p2p_stop_find(p2p);
1330
f44ae207
JM		 1331 if (p2p->after_scan_tx) {
1332 /*
1333 * We need to drop the pending frame to avoid issues with the
1334 * new GO Negotiation, e.g., when the pending frame was from a
1335 * previous attempt at starting a GO Negotiation.
1336 */
1337 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
1338 "previous pending Action frame TX that was waiting "
1339 "for p2p_scan completion");
1340 os_free(p2p->after_scan_tx);
1341 p2p->after_scan_tx = NULL;
1342 }
1343
b22128ef
JM		 1344 dev->wps_method = wps_method;
1345 dev->status = P2P_SC_SUCCESS;
d5b20a73 1346
b22128ef
JM		 1347 if (p2p->p2p_scan_running) {
1348 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1349 "P2P: p2p_scan running - delay connect send");
1350 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1351 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1352 return 0;
1353 }
1354 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1355
1356 return p2p_connect_send(p2p, dev);
1357}
1358
1359
1360int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1361 enum p2p_wps_method wps_method,
1362 int go_intent, const u8 *own_interface_addr,
23c84252 1363 unsigned int force_freq, int persistent_group,
04a3e69d
JM		 1364 const u8 *force_ssid, size_t force_ssid_len,
1365 unsigned int pref_freq)
b22128ef
JM		 1366{
1367 struct p2p_device *dev;
1368
1369 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1370 "P2P: Request to authorize group negotiation - peer=" MACSTR
1371 " GO Intent=%d Intended Interface Address=" MACSTR
1372 " wps_method=%d persistent_group=%d",
1373 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1374 wps_method, persistent_group);
1375
b22128ef
JM		 1376 dev = p2p_get_device(p2p, peer_addr);
1377 if (dev == NULL) {
1378 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1379 "P2P: Cannot authorize unknown P2P Device " MACSTR,
1380 MAC2STR(peer_addr));
1381 return -1;
1382 }
1383
92ac756c
JM		 1384 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
1385 return -1;
1386
23c84252
JM		 1387 p2p->ssid_set = 0;
1388 if (force_ssid) {
1389 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1390 force_ssid, force_ssid_len);
1391 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1392 p2p->ssid_len = force_ssid_len;
1393 p2p->ssid_set = 1;
1394 }
1395
b22128ef
JM		 1396 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1397 dev->flags &= ~P2P_DEV_USER_REJECTED;
1398 dev->go_neg_req_sent = 0;
1399 dev->go_state = UNKNOWN_GO;
acc247b2 1400 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1401 p2p->go_intent = go_intent;
1402 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1403
1404 dev->wps_method = wps_method;
1405 dev->status = P2P_SC_SUCCESS;
1406
1407 return 0;
1408}
1409
1410
1411void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1412 struct p2p_device *dev, struct p2p_message *msg)
1413{
1414 os_get_time(&dev->last_seen);
1415
b67d0d9e 1416 p2p_copy_wps_info(dev, 0, msg);
e57ae6e1 1417
b22128ef
JM		 1418 if (msg->listen_channel) {
1419 int freq;
1420 freq = p2p_channel_to_freq((char *) msg->listen_channel,
1421 msg->listen_channel[3],
1422 msg->listen_channel[4]);
1423 if (freq < 0) {
1424 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1425 "P2P: Unknown peer Listen channel: "
1426 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1427 msg->listen_channel[0],
1428 msg->listen_channel[1],
1429 msg->listen_channel[2],
1430 msg->listen_channel[3],
1431 msg->listen_channel[4]);
1432 } else {
1433 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1434 "peer " MACSTR " Listen channel: %u -> %u MHz",
c5db8e51 1435 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1436 dev->listen_freq, freq);
1437 dev->listen_freq = freq;
1438 }
1439 }
b22128ef 1440
9675ce35
JM		 1441 if (msg->wfd_subelems) {
1442 wpabuf_free(dev->info.wfd_subelems);
1443 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1444 }
1445
b22128ef
JM		 1446 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1447 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1448 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1449 "P2P: Completed device entry based on data from "
1450 "GO Negotiation Request");
1451 } else {
1452 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1453 "P2P: Created device entry based on GO Neg Req: "
1454 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1455 "listen_freq=%d",
c5db8e51
KRK		 1456 MAC2STR(dev->info.p2p_device_addr),
1457 dev->info.dev_capab, dev->info.group_capab,
1458 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1459 }
1460
1461 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1462
1463 if (dev->flags & P2P_DEV_USER_REJECTED) {
1464 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1465 "P2P: Do not report rejected device");
1466 return;
1467 }
1468
8fd7dc1b
JB		 1469 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1470 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1471 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1472}
1473
1474
1475void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1476{
1477 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1478 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1479 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1480 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1481 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1482}
1483
1484
1485int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1486{
1487 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1488 p2p_random(params->passphrase, 8);
1489 return 0;
1490}
1491
1492
1493void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1494{
1495 struct p2p_go_neg_results res;
1496 int go = peer->go_state == LOCAL_GO;
1497 struct p2p_channels intersection;
1498 int freqs;
1499 size_t i, j;
1500
1501 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1502 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
c5db8e51 1503 "GO)", MAC2STR(peer->info.p2p_device_addr),
b22128ef
JM		 1504 go ? "local end" : "peer");
1505
1506 os_memset(&res, 0, sizeof(res));
1507 res.role_go = go;
c5db8e51 1508 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1509 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1510 res.wps_method = peer->wps_method;
acc247b2
JM		 1511 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1512 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1513 res.persistent_group = 2;
1514 else
1515 res.persistent_group = 1;
1516 }
b22128ef
JM		 1517
1518 if (go) {
1519 /* Setup AP mode for WPS provisioning */
1520 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1521 p2p->op_reg_class,
1522 p2p->op_channel);
1523 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1524 res.ssid_len = p2p->ssid_len;
1525 p2p_random(res.passphrase, 8);
e9a7ae41 1526 } else {
b22128ef 1527 res.freq = peer->oper_freq;
e9a7ae41
JM		 1528 if (p2p->ssid_len) {
1529 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1530 res.ssid_len = p2p->ssid_len;
1531 }
1532 }
b22128ef
JM		 1533
1534 p2p_channels_intersect(&p2p->channels, &peer->channels,
1535 &intersection);
1536 freqs = 0;
1537 for (i = 0; i < intersection.reg_classes; i++) {
1538 struct p2p_reg_class *c = &intersection.reg_class[i];
1539 if (freqs + 1 == P2P_MAX_CHANNELS)
1540 break;
1541 for (j = 0; j < c->channels; j++) {
1542 int freq;
1543 if (freqs + 1 == P2P_MAX_CHANNELS)
1544 break;
1545 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1546 c->channel[j]);
1547 if (freq < 0)
1548 continue;
1549 res.freq_list[freqs++] = freq;
1550 }
1551 }
1552
ae3e3421
JM		 1553 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1554
b22128ef 1555 p2p_clear_timeout(p2p);
4458d915 1556 p2p->ssid_set = 0;
b22128ef
JM		 1557 peer->go_neg_req_sent = 0;
1558 peer->wps_method = WPS_NOT_READY;
1559
1560 p2p_set_state(p2p, P2P_PROVISIONING);
1561 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1562}
1563
1564
1565static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1566 const u8 *data, size_t len, int rx_freq)
1567{
1568 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1569 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1570 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1571
1572 if (len < 1)
1573 return;
1574
1575 switch (data[0]) {
1576 case P2P_GO_NEG_REQ:
1577 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1578 break;
1579 case P2P_GO_NEG_RESP:
1580 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1581 break;
1582 case P2P_GO_NEG_CONF:
1583 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1584 break;
1585 case P2P_INVITATION_REQ:
1586 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1587 rx_freq);
1588 break;
1589 case P2P_INVITATION_RESP:
1590 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1591 break;
1592 case P2P_PROV_DISC_REQ:
1593 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1594 break;
1595 case P2P_PROV_DISC_RESP:
1596 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1597 break;
1598 case P2P_DEV_DISC_REQ:
1599 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1600 break;
1601 case P2P_DEV_DISC_RESP:
1602 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1603 break;
1604 default:
1605 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1606 "P2P: Unsupported P2P Public Action frame type %d",
1607 data[0]);
1608 break;
1609 }
1610}
1611
1612
19df9b07
JM		 1613static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1614 const u8 *sa, const u8 *bssid, const u8 *data,
1615 size_t len, int freq)
b22128ef
JM		 1616{
1617 if (len < 1)
1618 return;
1619
1620 switch (data[0]) {
1621 case WLAN_PA_VENDOR_SPECIFIC:
1622 data++;
1623 len--;
1624 if (len < 3)
1625 return;
1626 if (WPA_GET_BE24(data) != OUI_WFA)
1627 return;
1628
1629 data += 3;
1630 len -= 3;
1631 if (len < 1)
1632 return;
1633
1634 if (*data != P2P_OUI_TYPE)
1635 return;
1636
1637 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1638 break;
1639 case WLAN_PA_GAS_INITIAL_REQ:
1640 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1641 break;
1642 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1643 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1644 break;
1645 case WLAN_PA_GAS_COMEBACK_REQ:
1646 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1647 break;
1648 case WLAN_PA_GAS_COMEBACK_RESP:
1649 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1650 break;
1651 }
1652}
1653
1654
1655void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1656 const u8 *bssid, u8 category,
1657 const u8 *data, size_t len, int freq)
1658{
1659 if (category == WLAN_ACTION_PUBLIC) {
1660 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1661 return;
1662 }
1663
1664 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1665 return;
1666
1667 if (len < 4)
1668 return;
1669
1670 if (WPA_GET_BE24(data) != OUI_WFA)
1671 return;
1672 data += 3;
1673 len -= 3;
1674
1675 if (*data != P2P_OUI_TYPE)
1676 return;
1677 data++;
1678 len--;
1679
1680 /* P2P action frame */
1681 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1682 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1683 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1684
1685 if (len < 1)
1686 return;
1687 switch (data[0]) {
1688 case P2P_NOA:
1689 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1690 "P2P: Received P2P Action - Notice of Absence");
1691 /* TODO */
1692 break;
1693 case P2P_PRESENCE_REQ:
1694 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1695 break;
1696 case P2P_PRESENCE_RESP:
1697 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1698 break;
1699 case P2P_GO_DISC_REQ:
1700 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1701 break;
1702 default:
1703 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1704 "P2P: Received P2P Action - unknown type %u", data[0]);
1705 break;
1706 }
1707}
1708
1709
1710static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1711{
1712 struct p2p_data *p2p = eloop_ctx;
1713 if (p2p->go_neg_peer == NULL)
1714 return;
1715 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1716 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1717 p2p_connect_send(p2p, p2p->go_neg_peer);
1718}
1719
1720
1721static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1722{
1723 struct p2p_data *p2p = eloop_ctx;
1724 if (p2p->invite_peer == NULL)
1725 return;
1726 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1727 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1728}
1729
1730
1731static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1732 const u8 *ie, size_t ie_len)
1733{
1734 struct p2p_message msg;
1735 struct p2p_device *dev;
1736
1737 os_memset(&msg, 0, sizeof(msg));
1738 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1739 {
1740 p2p_parse_free(&msg);
1741 return; /* not a P2P probe */
1742 }
1743
1744 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1745 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1746 != 0) {
1747 /* The Probe Request is not part of P2P Device Discovery. It is
1748 * not known whether the source address of the frame is the P2P
1749 * Device Address or P2P Interface Address. Do not add a new
1750 * peer entry based on this frames.
1751 */
1752 p2p_parse_free(&msg);
1753 return;
1754 }
1755
1756 dev = p2p_get_device(p2p, addr);
1757 if (dev) {
1758 if (dev->country[0] == 0 && msg.listen_channel)
1759 os_memcpy(dev->country, msg.listen_channel, 3);
ed908a55 1760 os_get_time(&dev->last_seen);
b22128ef
JM		 1761 p2p_parse_free(&msg);
1762 return; /* already known */
1763 }
1764
1765 dev = p2p_create_device(p2p, addr);
1766 if (dev == NULL) {
1767 p2p_parse_free(&msg);
1768 return;
1769 }
1770
1771 os_get_time(&dev->last_seen);
1772 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1773
b22128ef
JM		 1774 if (msg.listen_channel) {
1775 os_memcpy(dev->country, msg.listen_channel, 3);
1776 dev->listen_freq = p2p_channel_to_freq(dev->country,
1777 msg.listen_channel[3],
1778 msg.listen_channel[4]);
1779 }
1780
b67d0d9e 1781 p2p_copy_wps_info(dev, 1, &msg);
e57ae6e1 1782
9675ce35
JM		 1783 if (msg.wfd_subelems) {
1784 wpabuf_free(dev->info.wfd_subelems);
1785 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1786 }
1787
b22128ef
JM		 1788 p2p_parse_free(&msg);
1789
1790 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1791 "P2P: Created device entry based on Probe Req: " MACSTR
1792 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1793 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1794 dev->info.group_capab, dev->info.device_name,
1795 dev->listen_freq);
b22128ef
JM		 1796}
1797
1798
1799struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1800 const u8 *addr,
1801 struct p2p_message *msg)
1802{
1803 struct p2p_device *dev;
1804
1805 dev = p2p_get_device(p2p, addr);
1806 if (dev) {
1807 os_get_time(&dev->last_seen);
1808 return dev; /* already known */
1809 }
1810
1811 dev = p2p_create_device(p2p, addr);
1812 if (dev == NULL)
1813 return NULL;
1814
1815 p2p_add_dev_info(p2p, addr, dev, msg);
1816
1817 return dev;
1818}
1819
1820
1821static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1822{
1823 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1824 return 1;
1825 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1826 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1827 WPA_GET_BE16(&req_dev_type[6]) == 0)
1828 return 1; /* Category match with wildcard OUI/sub-category */
1829 return 0;
1830}
1831
1832
1833int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1834 size_t num_req_dev_type)
1835{
1836 size_t i;
1837 for (i = 0; i < num_req_dev_type; i++) {
1838 if (dev_type_match(dev_type, req_dev_type[i]))
1839 return 1;
1840 }
1841 return 0;
1842}
1843
1844
1845/**
1846 * p2p_match_dev_type - Match local device type with requested type
1847 * @p2p: P2P module context from p2p_init()
1848 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1849 * Returns: 1 on match, 0 on mismatch
1850 *
1851 * This function can be used to match the Requested Device Type attribute in
1852 * WPS IE with the local device types for deciding whether to reply to a Probe
1853 * Request frame.
1854 */
1855int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1856{
1857 struct wps_parse_attr attr;
1858 size_t i;
1859
1860 if (wps_parse_msg(wps, &attr))
1861 return 1; /* assume no Requested Device Type attributes */
1862
1863 if (attr.num_req_dev_type == 0)
1864 return 1; /* no Requested Device Type attributes -> match */
1865
1866 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1867 attr.num_req_dev_type))
1868 return 1; /* Own Primary Device Type matches */
1869
1870 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1871 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1872 attr.req_dev_type,
1873 attr.num_req_dev_type))
1874 return 1; /* Own Secondary Device Type matches */
1875
1876 /* No matching device type found */
1877 return 0;
1878}
1879
1880
1881struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1882{
1883 struct wpabuf *buf;
1884 u8 *len;
360182ed 1885 int pw_id = -1;
9675ce35 1886 size_t extra = 0;
b22128ef 1887
9675ce35
JM		 1888#ifdef CONFIG_WIFI_DISPLAY
1889 if (p2p->wfd_ie_probe_resp)
1890 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1891#endif /* CONFIG_WIFI_DISPLAY */
1892
1893 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 1894 if (buf == NULL)
1895 return NULL;
1896
360182ed
JM		 1897 if (p2p->go_neg_peer) {
1898 /* Advertise immediate availability of WPS credential */
1899 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1900 }
1901
1902 p2p_build_wps_ie(p2p, buf, pw_id, 1);
b22128ef 1903
9675ce35
JM		 1904#ifdef CONFIG_WIFI_DISPLAY
1905 if (p2p->wfd_ie_probe_resp)
1906 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1907#endif /* CONFIG_WIFI_DISPLAY */
1908
b22128ef
JM		 1909 /* P2P IE */
1910 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 1911 p2p_buf_add_capability(buf, p2p->dev_capab &
1912 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 1913 if (p2p->ext_listen_interval)
1914 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1915 p2p->ext_listen_interval);
1916 p2p_buf_add_device_info(buf, p2p, NULL);
1917 p2p_buf_update_ie_hdr(buf, len);
1918
1919 return buf;
1920}
1921
1922
e1d52629
JM		 1923static int is_11b(u8 rate)
1924{
1925 return rate == 0x02 || rate == 0x04 || rate == 0x0b || rate == 0x16;
1926}
1927
1928
1929static int supp_rates_11b_only(struct ieee802_11_elems *elems)
1930{
1931 int num_11b = 0, num_others = 0;
1932 int i;
1933
1934 if (elems->supp_rates == NULL && elems->ext_supp_rates == NULL)
1935 return 0;
1936
1937 for (i = 0; elems->supp_rates && i < elems->supp_rates_len; i++) {
1938 if (is_11b(elems->supp_rates[i]))
1939 num_11b++;
1940 else
1941 num_others++;
1942 }
1943
70dbe3b6
JM		 1944 for (i = 0; elems->ext_supp_rates && i < elems->ext_supp_rates_len;
1945 i++) {
1946 if (is_11b(elems->ext_supp_rates[i]))
1947 num_11b++;
1948 else
1949 num_others++;
1950 }
1951
e1d52629
JM		 1952 return num_11b > 0 && num_others == 0;
1953}
1954
1955
2d43d37f
JB		 1956static enum p2p_probe_req_status
1957p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1958 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1959{
1960 struct ieee802_11_elems elems;
1961 struct wpabuf *buf;
1962 struct ieee80211_mgmt *resp;
97c5b3c4 1963 struct p2p_message msg;
b22128ef
JM		 1964 struct wpabuf *ies;
1965
1966 if (!p2p->in_listen || !p2p->drv_in_listen) {
1967 /* not in Listen state - ignore Probe Request */
2d43d37f 1968 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 1969 }
1970
1971 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1972 ParseFailed) {
1973 /* Ignore invalid Probe Request frames */
2d43d37f 1974 return P2P_PREQ_MALFORMED;
b22128ef
JM		 1975 }
1976
1977 if (elems.p2p == NULL) {
1978 /* not a P2P probe - ignore it */
2d43d37f 1979 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 1980 }
1981
04a85e44
JM		 1982 if (dst && !is_broadcast_ether_addr(dst) &&
1983 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1984 /* Not sent to the broadcast address or our P2P Device Address
1985 */
2d43d37f 1986 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1987 }
1988
1989 if (bssid && !is_broadcast_ether_addr(bssid)) {
1990 /* Not sent to the Wildcard BSSID */
2d43d37f 1991 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1992 }
1993
b22128ef
JM		 1994 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1995 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1996 0) {
1997 /* not using P2P Wildcard SSID - ignore */
2d43d37f 1998 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 1999 }
2000
e1d52629
JM		 2001 if (supp_rates_11b_only(&elems)) {
2002 /* Indicates support for 11b rates only */
2d43d37f 2003 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2004 }
2005
97c5b3c4
JM		 2006 os_memset(&msg, 0, sizeof(msg));
2007 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2008 /* Could not parse P2P attributes */
2d43d37f 2009 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2010 }
2011
2012 if (msg.device_id &&
1c7447d0 2013 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4
JM		 2014 /* Device ID did not match */
2015 p2p_parse_free(&msg);
2d43d37f 2016 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2017 }
2018
b22128ef 2019 /* Check Requested Device Type match */
97c5b3c4
JM		 2020 if (msg.wps_attributes &&
2021 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2022 /* No match with Requested Device Type */
97c5b3c4 2023 p2p_parse_free(&msg);
2d43d37f 2024 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2025 }
97c5b3c4 2026 p2p_parse_free(&msg);
b22128ef 2027
2d43d37f
JB		 2028 if (!p2p->cfg->send_probe_resp) {
2029 /* Response generated elsewhere */
2030 return P2P_PREQ_NOT_PROCESSED;
2031 }
b22128ef
JM		 2032
2033 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2034 "P2P: Reply to P2P Probe Request in Listen state");
2035
2036 /*
2037 * We do not really have a specific BSS that this frame is advertising,
2038 * so build a frame that has some information in valid format. This is
2039 * really only used for discovery purposes, not to learn exact BSS
2040 * parameters.
2041 */
2042 ies = p2p_build_probe_resp_ies(p2p);
2043 if (ies == NULL)
2d43d37f 2044 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2045
2046 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2047 if (buf == NULL) {
2048 wpabuf_free(ies);
2d43d37f 2049 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2050 }
2051
2052 resp = NULL;
2053 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2054
2055 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2056 (WLAN_FC_STYPE_PROBE_RESP << 4));
2057 os_memcpy(resp->da, addr, ETH_ALEN);
2058 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2059 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2060 resp->u.probe_resp.beacon_int = host_to_le16(100);
2061 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2062 resp->u.probe_resp.capab_info =
2063 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2064 WLAN_CAPABILITY_PRIVACY |
2065 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2066
2067 wpabuf_put_u8(buf, WLAN_EID_SSID);
2068 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2069 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2070
2071 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2072 wpabuf_put_u8(buf, 8);
2073 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2074 wpabuf_put_u8(buf, 90 / 5);
2075 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2076 wpabuf_put_u8(buf, 180 / 5);
2077 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2078 wpabuf_put_u8(buf, 360 / 5);
2079 wpabuf_put_u8(buf, 480 / 5);
2080 wpabuf_put_u8(buf, 540 / 5);
2081
2082 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2083 wpabuf_put_u8(buf, 1);
2084 wpabuf_put_u8(buf, p2p->cfg->channel);
2085
2086 wpabuf_put_buf(buf, ies);
2087 wpabuf_free(ies);
2088
2089 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2090
2091 wpabuf_free(buf);
2d43d37f
JB		 2092
2093 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2094}
2095
2096
2d43d37f
JB		 2097enum p2p_probe_req_status
2098p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2099 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2100{
2d43d37f
JB		 2101 enum p2p_probe_req_status res;
2102
b22128ef
JM		 2103 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2104
2d43d37f 2105 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2106
2107 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2108 p2p->go_neg_peer &&
c5db8e51
KRK		 2109 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
2110 == 0) {
b22128ef
JM		 2111 /* Received a Probe Request from GO Negotiation peer */
2112 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2113 "P2P: Found GO Negotiation peer - try to start GO "
2114 "negotiation from timeout");
2115 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2116 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2117 }
2118
2119 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2120 p2p->invite_peer &&
c5db8e51
KRK		 2121 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2122 == 0) {
b22128ef
JM		 2123 /* Received a Probe Request from Invite peer */
2124 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2125 "P2P: Found Invite peer - try to start Invite from "
2126 "timeout");
2127 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2128 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2129 }
2130
2d43d37f 2131 return res;
b22128ef
JM		 2132}
2133
2134
2135static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2136 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2137{
2138 struct wpabuf *tmp;
2139 u8 *lpos;
2140 size_t tmplen;
2141 int res;
72044390 2142 u8 group_capab;
b22128ef 2143
4c08c0bd
JM		 2144 if (p2p_ie == NULL)
2145 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2146
2147 /*
2148 * (Re)Association Request - P2P IE
2149 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2150 * P2P Interface attribute (present if concurrent device and
2151 * P2P Management is enabled)
b22128ef
JM		 2152 */
2153 tmp = wpabuf_alloc(200);
2154 if (tmp == NULL)
2155 return -1;
2156
2157 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2158 group_capab = 0;
2159 if (p2p->num_groups > 0) {
2160 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2161 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2162 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2163 p2p->cross_connect)
2164 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2165 }
2166 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2167 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2168 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2169 p2p_buf_add_p2p_interface(tmp, p2p);
2170 p2p_buf_update_ie_hdr(tmp, lpos);
2171
2172 tmplen = wpabuf_len(tmp);
2173 if (tmplen > len)
2174 res = -1;
2175 else {
2176 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2177 res = tmplen;
2178 }
2179 wpabuf_free(tmp);
2180
2181 return res;
2182}
2183
2184
2185int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2186 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2187{
2188 struct wpabuf *tmp;
2189 u8 *lpos;
2190 struct p2p_device *peer;
2191 size_t tmplen;
2192 int res;
9675ce35 2193 size_t extra = 0;
b22128ef
JM		 2194
2195 if (!p2p_group)
4c08c0bd 2196 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2197
9675ce35
JM		 2198#ifdef CONFIG_WIFI_DISPLAY
2199 if (p2p->wfd_ie_assoc_req)
2200 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2201#endif /* CONFIG_WIFI_DISPLAY */
2202
b22128ef
JM		 2203 /*
2204 * (Re)Association Request - P2P IE
2205 * P2P Capability attribute (shall be present)
2206 * Extended Listen Timing (may be present)
2207 * P2P Device Info attribute (shall be present)
2208 */
9675ce35 2209 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2210 if (tmp == NULL)
2211 return -1;
2212
9675ce35
JM		 2213#ifdef CONFIG_WIFI_DISPLAY
2214 if (p2p->wfd_ie_assoc_req)
2215 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2216#endif /* CONFIG_WIFI_DISPLAY */
2217
b22128ef
JM		 2218 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2219
2220 lpos = p2p_buf_add_ie_hdr(tmp);
2221 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2222 if (p2p->ext_listen_interval)
2223 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2224 p2p->ext_listen_interval);
b22128ef
JM		 2225 p2p_buf_add_device_info(tmp, p2p, peer);
2226 p2p_buf_update_ie_hdr(tmp, lpos);
2227
2228 tmplen = wpabuf_len(tmp);
2229 if (tmplen > len)
2230 res = -1;
2231 else {
2232 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2233 res = tmplen;
2234 }
2235 wpabuf_free(tmp);
2236
2237 return res;
2238}
2239
2240
2241int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2242{
2243 struct wpabuf *p2p_ie;
2244 int ret;
2245
2246 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2247 if (p2p_ie == NULL)
2248 return 0;
2249
2250 ret = p2p_attr_text(p2p_ie, buf, end);
2251 wpabuf_free(p2p_ie);
2252 return ret;
2253}
2254
2255
c2d76aa6 2256int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2257{
0a70f34f
JM		 2258 struct p2p_message msg;
2259
0a70f34f 2260 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2261 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2262 return -1;
0a70f34f 2263
526ec4ae
JM		 2264 if (msg.p2p_device_addr) {
2265 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2266 return 0;
526ec4ae
JM		 2267 } else if (msg.device_id) {
2268 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2269 return 0;
0a70f34f 2270 }
c2d76aa6
MH		 2271 return -1;
2272}
0a70f34f 2273
c2d76aa6
MH		 2274
2275int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2276{
2277 struct wpabuf *p2p_ie;
2278 int ret;
2279
2280 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2281 P2P_IE_VENDOR_TYPE);
2282 if (p2p_ie == NULL)
2283 return -1;
2284 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2285 wpabuf_free(p2p_ie);
526ec4ae 2286 return ret;
0a70f34f
JM		 2287}
2288
2289
b22128ef
JM		 2290static void p2p_clear_go_neg(struct p2p_data *p2p)
2291{
2292 p2p->go_neg_peer = NULL;
2293 p2p_clear_timeout(p2p);
2294 p2p_set_state(p2p, P2P_IDLE);
2295}
2296
2297
2298void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2299{
2300 if (p2p->go_neg_peer == NULL) {
2301 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2302 "P2P: No pending Group Formation - "
2303 "ignore WPS registration success notification");
2304 return; /* No pending Group Formation */
2305 }
2306
2307 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2308 0) {
2309 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2310 "P2P: Ignore WPS registration success notification "
2311 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
2312 MAC2STR(mac_addr),
2313 MAC2STR(p2p->go_neg_peer->intended_addr));
2314 return; /* Ignore unexpected peer address */
2315 }
2316
2317 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2318 "P2P: Group Formation completed successfully with " MACSTR,
2319 MAC2STR(mac_addr));
2320
2321 p2p_clear_go_neg(p2p);
2322}
2323
2324
2325void p2p_group_formation_failed(struct p2p_data *p2p)
2326{
2327 if (p2p->go_neg_peer == NULL) {
2328 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2329 "P2P: No pending Group Formation - "
2330 "ignore group formation failure notification");
2331 return; /* No pending Group Formation */
2332 }
2333
2334 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2335 "P2P: Group Formation failed with " MACSTR,
2336 MAC2STR(p2p->go_neg_peer->intended_addr));
2337
2338 p2p_clear_go_neg(p2p);
2339}
2340
2341
2342struct p2p_data * p2p_init(const struct p2p_config *cfg)
2343{
2344 struct p2p_data *p2p;
2345
2346 if (cfg->max_peers < 1)
2347 return NULL;
2348
2349 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2350 if (p2p == NULL)
2351 return NULL;
2352 p2p->cfg = (struct p2p_config *) (p2p + 1);
2353 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2354 if (cfg->dev_name)
2355 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2356 if (cfg->manufacturer)
2357 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2358 if (cfg->model_name)
2359 p2p->cfg->model_name = os_strdup(cfg->model_name);
2360 if (cfg->model_number)
2361 p2p->cfg->model_number = os_strdup(cfg->model_number);
2362 if (cfg->serial_number)
2363 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2364 if (cfg->pref_chan) {
2365 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2366 sizeof(struct p2p_channel));
2367 if (p2p->cfg->pref_chan) {
2368 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2369 cfg->num_pref_chan *
2370 sizeof(struct p2p_channel));
2371 } else
2372 p2p->cfg->num_pref_chan = 0;
2373 }
b22128ef
JM		 2374
2375 p2p->min_disc_int = 1;
2376 p2p->max_disc_int = 3;
96beff11 2377 p2p->max_disc_tu = -1;
b22128ef
JM		 2378
2379 os_get_random(&p2p->next_tie_breaker, 1);
2380 p2p->next_tie_breaker &= 0x01;
2381 if (cfg->sd_request)
2382 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2383 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2384 if (cfg->concurrent_operations)
2385 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2386 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2387
2388 dl_list_init(&p2p->devices);
2389
2390 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2391 p2p_expiration_timeout, p2p, NULL);
2392
4f219667
JM		 2393 p2p->go_timeout = 100;
2394 p2p->client_timeout = 20;
2395
b22128ef
JM		 2396 return p2p;
2397}
2398
2399
2400void p2p_deinit(struct p2p_data *p2p)
2401{
9675ce35
JM		 2402#ifdef CONFIG_WIFI_DISPLAY
2403 wpabuf_free(p2p->wfd_ie_beacon);
2404 wpabuf_free(p2p->wfd_ie_probe_req);
2405 wpabuf_free(p2p->wfd_ie_probe_resp);
2406 wpabuf_free(p2p->wfd_ie_assoc_req);
2407 wpabuf_free(p2p->wfd_ie_invitation);
2408 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2409 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2410 wpabuf_free(p2p->wfd_ie_go_neg);
2411 wpabuf_free(p2p->wfd_dev_info);
2412 wpabuf_free(p2p->wfd_assoc_bssid);
2413 wpabuf_free(p2p->wfd_coupled_sink_info);
2414#endif /* CONFIG_WIFI_DISPLAY */
2415
b22128ef
JM		 2416 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2417 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2418 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2419 p2p_flush(p2p);
046ef4aa 2420 p2p_free_req_dev_types(p2p);
b22128ef 2421 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2422 os_free(p2p->cfg->manufacturer);
2423 os_free(p2p->cfg->model_name);
2424 os_free(p2p->cfg->model_number);
2425 os_free(p2p->cfg->serial_number);
21d996f7 2426 os_free(p2p->cfg->pref_chan);
b22128ef 2427 os_free(p2p->groups);
18708aad 2428 wpabuf_free(p2p->sd_resp);
3f9285ff 2429 os_free(p2p->after_scan_tx);
f95cac27 2430 p2p_remove_wps_vendor_extensions(p2p);
b22128ef
JM		 2431 os_free(p2p);
2432}
2433
2434
2435void p2p_flush(struct p2p_data *p2p)
2436{
2437 struct p2p_device *dev, *prev;
78db55b8 2438 p2p_stop_find(p2p);
b22128ef
JM		 2439 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2440 list) {
2441 dl_list_del(&dev->list);
2442 p2p_device_free(p2p, dev);
2443 }
2444 p2p_free_sd_queries(p2p);
f44ae207
JM		 2445 os_free(p2p->after_scan_tx);
2446 p2p->after_scan_tx = NULL;
b22128ef
JM		 2447}
2448
2449
9d562b79
SS		 2450int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2451{
2452 struct p2p_device *dev;
2453
2454 dev = p2p_get_device(p2p, addr);
2455 if (dev == NULL)
2456 return -1;
2457
2458 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Unauthorizing " MACSTR,
2459 MAC2STR(addr));
2460
2461 if (p2p->go_neg_peer == dev)
2462 p2p->go_neg_peer = NULL;
2463
2464 dev->wps_method = WPS_NOT_READY;
2465 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2466 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2467
2468 /* Check if after_scan_tx is for this peer. If so free it */
2469 if (p2p->after_scan_tx &&
2470 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2471 os_free(p2p->after_scan_tx);
2472 p2p->after_scan_tx = NULL;
2473 }
2474
2475 return 0;
2476}
2477
2478
b22128ef
JM		 2479int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2480{
2481 os_free(p2p->cfg->dev_name);
2482 if (dev_name) {
2483 p2p->cfg->dev_name = os_strdup(dev_name);
2484 if (p2p->cfg->dev_name == NULL)
2485 return -1;
2486 } else
2487 p2p->cfg->dev_name = NULL;
2488 return 0;
2489}
2490
2491
b6e01800
JM		 2492int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2493{
2494 os_free(p2p->cfg->manufacturer);
2495 p2p->cfg->manufacturer = NULL;
2496 if (manufacturer) {
2497 p2p->cfg->manufacturer = os_strdup(manufacturer);
2498 if (p2p->cfg->manufacturer == NULL)
2499 return -1;
2500 }
2501
2502 return 0;
2503}
2504
2505
2506int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2507{
2508 os_free(p2p->cfg->model_name);
2509 p2p->cfg->model_name = NULL;
2510 if (model_name) {
2511 p2p->cfg->model_name = os_strdup(model_name);
2512 if (p2p->cfg->model_name == NULL)
2513 return -1;
2514 }
2515
2516 return 0;
2517}
2518
2519
2520int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2521{
2522 os_free(p2p->cfg->model_number);
2523 p2p->cfg->model_number = NULL;
2524 if (model_number) {
2525 p2p->cfg->model_number = os_strdup(model_number);
2526 if (p2p->cfg->model_number == NULL)
2527 return -1;
2528 }
2529
2530 return 0;
2531}
2532
2533
2534int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2535{
2536 os_free(p2p->cfg->serial_number);
2537 p2p->cfg->serial_number = NULL;
2538 if (serial_number) {
2539 p2p->cfg->serial_number = os_strdup(serial_number);
2540 if (p2p->cfg->serial_number == NULL)
2541 return -1;
2542 }
2543
2544 return 0;
2545}
2546
2547
2548void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2549{
2550 p2p->cfg->config_methods = config_methods;
2551}
2552
2553
2554void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2555{
2556 os_memcpy(p2p->cfg->uuid, uuid, 16);
2557}
2558
2559
b22128ef
JM		 2560int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2561{
2562 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2563 return 0;
2564}
2565
2566
2567int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2568 size_t num_dev_types)
2569{
2570 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2571 num_dev_types = P2P_SEC_DEVICE_TYPES;
2572 p2p->cfg->num_sec_dev_types = num_dev_types;
2573 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2574 return 0;
2575}
2576
2577
f95cac27
JMB		 2578void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2579{
2580 int i;
2581
10c5d2a5 2582 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2583 wpabuf_free(p2p->wps_vendor_ext[i]);
2584 p2p->wps_vendor_ext[i] = NULL;
2585 }
2586}
2587
2588
2589int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2590 const struct wpabuf *vendor_ext)
2591{
2592 int i;
2593
2594 if (vendor_ext == NULL)
2595 return -1;
2596
10c5d2a5 2597 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2598 if (p2p->wps_vendor_ext[i] == NULL)
2599 break;
2600 }
10c5d2a5 2601 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2602 return -1;
2603
2604 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2605 if (p2p->wps_vendor_ext[i] == NULL)
2606 return -1;
2607
2608 return 0;
2609}
2610
2611
b22128ef
JM		 2612int p2p_set_country(struct p2p_data *p2p, const char *country)
2613{
2614 os_memcpy(p2p->cfg->country, country, 3);
2615 return 0;
2616}
2617
2618
2619void p2p_continue_find(struct p2p_data *p2p)
2620{
2621 struct p2p_device *dev;
2622 p2p_set_state(p2p, P2P_SEARCH);
2623 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2624 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2625 if (p2p_start_sd(p2p, dev) == 0)
2626 return;
2627 else
2628 break;
10c4edde
JM		 2629 } else if (dev->req_config_methods &&
2630 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
2631 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2632 "pending Provision Discovery Request to "
10c4edde 2633 MACSTR " (config methods 0x%x)",
c5db8e51 2634 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2635 dev->req_config_methods);
1ef2f7ff 2636 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2637 return;
2638 }
2639 }
2640
96beff11 2641 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2642}
2643
2644
2645static void p2p_sd_cb(struct p2p_data *p2p, int success)
2646{
2647 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2648 "P2P: Service Discovery Query TX callback: success=%d",
2649 success);
2650 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2651
2652 if (!success) {
2653 if (p2p->sd_peer) {
2654 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2655 p2p->sd_peer = NULL;
2656 }
2657 p2p_continue_find(p2p);
2658 return;
2659 }
2660
2661 if (p2p->sd_peer == NULL) {
2662 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2663 "P2P: No SD peer entry known");
2664 p2p_continue_find(p2p);
2665 return;
2666 }
2667
2668 /* Wait for response from the peer */
2669 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2670 p2p_set_timeout(p2p, 0, 200000);
2671}
2672
6b56cc2d
JS		 2673
2674/**
2675 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2676 * @p2p: P2P module context from p2p_init()
2677 */
19df9b07 2678static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2679{
2680 struct p2p_device *dev;
2681
2682 if (p2p->state != P2P_IDLE)
2683 return;
2684
2685 /*
2686 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2687 * requested.
6b56cc2d
JS		 2688 */
2689
2690 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2691 if (os_memcmp(p2p->pending_pd_devaddr,
2692 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2693 continue;
2694 if (!dev->req_config_methods)
2695 continue;
6b56cc2d
JS		 2696
2697 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2698 "pending Provision Discovery Request to "
6b56cc2d
JS		 2699 MACSTR " (config methods 0x%x)",
2700 MAC2STR(dev->info.p2p_device_addr),
2701 dev->req_config_methods);
175171ac
JM		 2702 p2p_send_prov_disc_req(p2p, dev,
2703 dev->flags & P2P_DEV_PD_FOR_JOIN, 0);
6b56cc2d
JS		 2704 return;
2705 }
2706}
2707
2708
b22128ef
JM		 2709static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2710{
2711 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2712 "P2P: Provision Discovery Request TX callback: success=%d",
2713 success);
6b56cc2d
JS		 2714
2715 /*
2716 * Postpone resetting the pending action state till after we actually
2717 * time out. This allows us to take some action like notifying any
2718 * interested parties about no response to the request.
2719 *
2720 * When the timer (below) goes off we check in IDLE, SEARCH, or
2721 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2722 * requests in, if this was still pending and then raise notification.
2723 */
b22128ef
JM		 2724
2725 if (!success) {
6b56cc2d
JS		 2726 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2727
488f4a71
JM		 2728 if (p2p->user_initiated_pd &&
2729 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2730 {
2731 /* Retry request from timeout to avoid busy loops */
2732 p2p->pending_action_state = P2P_PENDING_PD;
2733 p2p_set_timeout(p2p, 0, 50000);
2734 } else if (p2p->state != P2P_IDLE)
b22128ef 2735 p2p_continue_find(p2p);
6b56cc2d
JS		 2736 else if (p2p->user_initiated_pd) {
2737 p2p->pending_action_state = P2P_PENDING_PD;
2738 p2p_set_timeout(p2p, 0, 300000);
2739 }
b22128ef
JM		 2740 return;
2741 }
2742
6b56cc2d
JS		 2743 /*
2744 * This postponing, of resetting pending_action_state, needs to be
2745 * done only for user initiated PD requests and not internal ones.
2746 */
2747 if (p2p->user_initiated_pd)
2748 p2p->pending_action_state = P2P_PENDING_PD;
2749 else
2750 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2751
b22128ef
JM		 2752 /* Wait for response from the peer */
2753 if (p2p->state == P2P_SEARCH)
2754 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2755 p2p_set_timeout(p2p, 0, 200000);
2756}
2757
2758
2759int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
3dfd0484
YD		 2760 unsigned int age, int level, const u8 *ies,
2761 size_t ies_len)
b22128ef 2762{
3dfd0484 2763 p2p_add_device(p2p, bssid, freq, age, level, ies, ies_len, 1);
b22128ef 2764
b22128ef
JM		 2765 return 0;
2766}
2767
2768
2769void p2p_scan_res_handled(struct p2p_data *p2p)
2770{
2771 if (!p2p->p2p_scan_running) {
2772 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
2773 "running, but scan results received");
2774 }
2775 p2p->p2p_scan_running = 0;
2776 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2777
2778 if (p2p_run_after_scan(p2p))
2779 return;
2780 if (p2p->state == P2P_SEARCH)
2781 p2p_continue_find(p2p);
2782}
2783
2784
6d92fa6e 2785void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2786{
9675ce35
JM		 2787 u8 *len;
2788
2789#ifdef CONFIG_WIFI_DISPLAY
2790 if (p2p->wfd_ie_probe_req)
2791 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2792#endif /* CONFIG_WIFI_DISPLAY */
2793
2794 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2795 p2p_buf_add_capability(ies, p2p->dev_capab &
2796 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2797 if (dev_id)
2798 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2799 if (p2p->cfg->reg_class && p2p->cfg->channel)
2800 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2801 p2p->cfg->reg_class,
2802 p2p->cfg->channel);
2803 if (p2p->ext_listen_interval)
2804 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2805 p2p->ext_listen_interval);
2806 /* TODO: p2p_buf_add_operating_channel() if GO */
2807 p2p_buf_update_ie_hdr(ies, len);
2808}
2809
2810
206e1f42
JM		 2811size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2812{
9675ce35
JM		 2813 size_t len = 100;
2814
2815#ifdef CONFIG_WIFI_DISPLAY
2816 if (p2p && p2p->wfd_ie_probe_req)
2817 len += wpabuf_len(p2p->wfd_ie_probe_req);
2818#endif /* CONFIG_WIFI_DISPLAY */
2819
2820 return len;
206e1f42
JM		 2821}
2822
2823
b22128ef
JM		 2824int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2825{
2826 return p2p_attr_text(p2p_ie, buf, end);
2827}
2828
2829
2830static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2831{
2832 struct p2p_device *dev = p2p->go_neg_peer;
2833
2834 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2835 "P2P: GO Negotiation Request TX callback: success=%d",
2836 success);
2837
2838 if (dev == NULL) {
2839 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2840 "P2P: No pending GO Negotiation");
2841 return;
2842 }
2843
2844 if (success) {
b22128ef
JM		 2845 if (dev->flags & P2P_DEV_USER_REJECTED) {
2846 p2p_set_state(p2p, P2P_IDLE);
2847 return;
2848 }
a1d2ab32
NKG		 2849 } else if (dev->go_neg_req_sent) {
2850 /* Cancel the increment from p2p_connect_send() on failure */
2851 dev->go_neg_req_sent--;
b22128ef
JM		 2852 }
2853
2854 if (!success &&
c5db8e51 2855 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef
JM		 2856 !is_zero_ether_addr(dev->member_in_go_dev)) {
2857 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2858 "P2P: Peer " MACSTR " did not acknowledge request - "
2859 "try to use device discoverability through its GO",
c5db8e51 2860 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2861 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2862 p2p_send_dev_disc_req(p2p, dev);
2863 return;
2864 }
2865
2866 /*
2867 * Use P2P find, if needed, to find the other device from its listen
2868 * channel.
2869 */
2870 p2p_set_state(p2p, P2P_CONNECT);
504a5839 2871 p2p_set_timeout(p2p, 0, success ? 200000 : 100000);
b22128ef
JM		 2872}
2873
2874
2875static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2876{
2877 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2878 "P2P: GO Negotiation Response TX callback: success=%d",
2879 success);
2880 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2881 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2882 "P2P: Ignore TX callback event - GO Negotiation is "
2883 "not running anymore");
2884 return;
2885 }
2886 p2p_set_state(p2p, P2P_CONNECT);
504a5839 2887 p2p_set_timeout(p2p, 0, 250000);
b22128ef
JM		 2888}
2889
2890
2891static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2892{
2893 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2894 "P2P: GO Negotiation Response (failure) TX callback: "
2895 "success=%d", success);
fbe70272
JM		 2896 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2897 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2898 p2p->go_neg_peer->status);
2899 }
b22128ef
JM		 2900}
2901
2902
93b7ddd0
JM		 2903static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2904 enum p2p_send_action_result result)
b22128ef
JM		 2905{
2906 struct p2p_device *dev;
2907
2908 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
93b7ddd0
JM		 2909 "P2P: GO Negotiation Confirm TX callback: result=%d",
2910 result);
b22128ef 2911 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2912 if (result == P2P_SEND_ACTION_FAILED) {
2913 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2914 return;
2915 }
2916 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2917 /*
2918 * It looks like the TX status for GO Negotiation Confirm is
2919 * often showing failure even when the peer has actually
2920 * received the frame. Since the peer may change channels
2921 * immediately after having received the frame, we may not see
2922 * an Ack for retries, so just dropping a single frame may
2923 * trigger this. To allow the group formation to succeed if the
2924 * peer did indeed receive the frame, continue regardless of
2925 * the TX status.
2926 */
2927 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2928 "P2P: Assume GO Negotiation Confirm TX was actually "
2929 "received by the peer even though Ack was not "
2930 "reported");
2931 }
2932
2933 dev = p2p->go_neg_peer;
2934 if (dev == NULL)
2935 return;
2936
2937 p2p_go_complete(p2p, dev);
2938}
2939
2940
2941void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2942 const u8 *src, const u8 *bssid,
2943 enum p2p_send_action_result result)
b22128ef
JM		 2944{
2945 enum p2p_pending_action_state state;
93b7ddd0 2946 int success;
b22128ef
JM		 2947
2948 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2949 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2950 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2951 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2952 MAC2STR(bssid), result);
2953 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2954 state = p2p->pending_action_state;
2955 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2956 switch (state) {
2957 case P2P_NO_PENDING_ACTION:
2958 break;
2959 case P2P_PENDING_GO_NEG_REQUEST:
2960 p2p_go_neg_req_cb(p2p, success);
2961 break;
2962 case P2P_PENDING_GO_NEG_RESPONSE:
2963 p2p_go_neg_resp_cb(p2p, success);
2964 break;
2965 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2966 p2p_go_neg_resp_failure_cb(p2p, success);
2967 break;
2968 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2969 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 2970 break;
2971 case P2P_PENDING_SD:
2972 p2p_sd_cb(p2p, success);
2973 break;
2974 case P2P_PENDING_PD:
2975 p2p_prov_disc_cb(p2p, success);
2976 break;
2977 case P2P_PENDING_INVITATION_REQUEST:
2978 p2p_invitation_req_cb(p2p, success);
2979 break;
2980 case P2P_PENDING_INVITATION_RESPONSE:
2981 p2p_invitation_resp_cb(p2p, success);
2982 break;
2983 case P2P_PENDING_DEV_DISC_REQUEST:
2984 p2p_dev_disc_req_cb(p2p, success);
2985 break;
2986 case P2P_PENDING_DEV_DISC_RESPONSE:
2987 p2p_dev_disc_resp_cb(p2p, success);
2988 break;
2989 case P2P_PENDING_GO_DISC_REQ:
2990 p2p_go_disc_req_cb(p2p, success);
2991 break;
2992 }
2993}
2994
2995
2996void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2997 unsigned int duration)
2998{
2999 if (freq == p2p->pending_client_disc_freq) {
3000 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3001 "P2P: Client discoverability remain-awake completed");
3002 p2p->pending_client_disc_freq = 0;
3003 return;
3004 }
3005
3006 if (freq != p2p->pending_listen_freq) {
3007 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3008 "P2P: Unexpected listen callback for freq=%u "
3009 "duration=%u (pending_listen_freq=%u)",
3010 freq, duration, p2p->pending_listen_freq);
3011 return;
3012 }
3013
3014 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3015 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
3016 "callback",
3017 p2p->pending_listen_sec, p2p->pending_listen_usec,
3018 p2p->pending_listen_freq);
3019 p2p->in_listen = 1;
0b8889d8 3020 p2p->drv_in_listen = freq;
b22128ef
JM		 3021 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3022 /*
3023 * Add 20 msec extra wait to avoid race condition with driver
3024 * remain-on-channel end event, i.e., give driver more time to
3025 * complete the operation before our timeout expires.
3026 */
3027 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3028 p2p->pending_listen_usec + 20000);
3029 }
3030
3031 p2p->pending_listen_freq = 0;
3032}
3033
3034
3035int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3036{
3037 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
3038 "state (freq=%u)", freq);
3039 p2p->drv_in_listen = 0;
3040 if (p2p->in_listen)
3041 return 0; /* Internal timeout will trigger the next step */
3042
3043 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c
JM		 3044 if (p2p->go_neg_peer->connect_reqs >= 120) {
3045 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3046 "P2P: Timeout on sending GO Negotiation "
3047 "Request without getting response");
3048 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3049 return 0;
3050 }
3051
b22128ef
JM		 3052 p2p_set_state(p2p, P2P_CONNECT);
3053 p2p_connect_send(p2p, p2p->go_neg_peer);
3054 return 1;
3055 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3056 if (p2p->p2p_scan_running) {
3057 /*
3058 * Search is already in progress. This can happen if
3059 * an Action frame RX is reported immediately after
3060 * the end of a remain-on-channel operation and the
3061 * response frame to that is sent using an offchannel
3062 * operation while in p2p_find. Avoid an attempt to
3063 * restart a scan here.
3064 */
3065 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan "
3066 "already in progress - do not try to start a "
3067 "new one");
3068 return 1;
3069 }
3fe8b68d
JM		 3070 if (p2p->pending_listen_freq) {
3071 /*
3072 * Better wait a bit if the driver is unable to start
3073 * offchannel operation for some reason. p2p_search()
3074 * will be started from internal timeout.
3075 */
3076 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Listen "
3077 "operation did not seem to start - delay "
3078 "search phase to avoid busy loop");
3079 p2p_set_timeout(p2p, 0, 100000);
3080 return 1;
3081 }
37448ede
JM		 3082 if (p2p->search_delay) {
3083 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay "
3084 "search operation by %u ms",
3085 p2p->search_delay);
3086 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3087 (p2p->search_delay % 1000) * 1000);
3088 return 1;
3089 }
b22128ef
JM		 3090 p2p_search(p2p);
3091 return 1;
3092 }
3093
3094 return 0;
3095}
3096
3097
3098static void p2p_timeout_connect(struct p2p_data *p2p)
3099{
3100 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3101 if (p2p->go_neg_peer &&
3102 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
3103 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Wait for GO "
3104 "Negotiation Confirm timed out - assume GO "
3105 "Negotiation failed");
3106 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3107 return;
3108 }
b22128ef 3109 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3110 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3111}
3112
3113
3114static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3115{
3116 if (p2p->go_neg_peer) {
3117 if (p2p->drv_in_listen) {
3118 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
3119 "still in Listen state; wait for it to "
3120 "complete");
3121 return;
3122 }
9dac8c3e
FM		 3123
3124 if (p2p->go_neg_peer->connect_reqs >= 120) {
3125 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3126 "P2P: Timeout on sending GO Negotiation "
3127 "Request without getting response");
3128 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3129 return;
3130 }
3131
b22128ef
JM		 3132 p2p_set_state(p2p, P2P_CONNECT);
3133 p2p_connect_send(p2p, p2p->go_neg_peer);
3134 } else
3135 p2p_set_state(p2p, P2P_IDLE);
3136}
3137
3138
3139static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3140{
3141 /*
3142 * TODO: could remain constantly in Listen state for some time if there
3143 * are no other concurrent uses for the radio. For now, go to listen
3144 * state once per second to give other uses a chance to use the radio.
3145 */
3146 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
d58ed4e3 3147 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3148}
3149
3150
3151static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3152{
3153 struct p2p_device *dev = p2p->go_neg_peer;
3154
3155 if (dev == NULL) {
3156 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3157 "P2P: Unknown GO Neg peer - stop GO Neg wait");
3158 return;
3159 }
3160
3161 dev->wait_count++;
3162 if (dev->wait_count >= 120) {
3163 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3164 "P2P: Timeout on waiting peer to become ready for GO "
3165 "Negotiation");
3166 p2p_go_neg_failed(p2p, dev, -1);
3167 return;
3168 }
3169
3170 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3171 "P2P: Go to Listen state while waiting for the peer to become "
3172 "ready for GO Negotiation");
3173 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3174 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3175}
3176
3177
3178static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3179{
3180 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3181 "P2P: Service Discovery Query timeout");
3182 if (p2p->sd_peer) {
3183 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3184 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
3185 p2p->sd_peer = NULL;
3186 }
3187 p2p_continue_find(p2p);
3188}
3189
3190
3191static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3192{
3193 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3194 "P2P: Provision Discovery Request timeout");
3195 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3196 p2p_continue_find(p2p);
3197}
3198
3199
6b56cc2d
JS		 3200static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3201{
3202 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3203
3204 /*
3205 * For user initiated PD requests that we have not gotten any responses
3206 * for while in IDLE state, we retry them a couple of times before
3207 * giving up.
3208 */
3209 if (!p2p->user_initiated_pd)
3210 return;
3211
3212 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3213 "P2P: User initiated Provision Discovery Request timeout");
3214
3215 if (p2p->pd_retries) {
3216 p2p->pd_retries--;
3217 p2p_retry_pd(p2p);
3218 } else {
175171ac
JM		 3219 struct p2p_device *dev;
3220 int for_join = 0;
3221
3222 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3223 if (os_memcmp(p2p->pending_pd_devaddr,
3224 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3225 continue;
3226 if (dev->req_config_methods &&
3227 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3228 for_join = 1;
3229 }
3230
349b213c
JS		 3231 if (p2p->cfg->prov_disc_fail)
3232 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3233 p2p->pending_pd_devaddr,
175171ac
JM		 3234 for_join ?
3235 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3236 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3237 p2p_reset_pending_pd(p2p);
3238 }
3239}
3240
3241
b22128ef
JM		 3242static void p2p_timeout_invite(struct p2p_data *p2p)
3243{
3244 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3245 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3246 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3247 /*
3248 * Better remain on operating channel instead of listen channel
3249 * when running a group.
3250 */
3251 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
3252 "active GO role - wait on operating channel");
3253 p2p_set_timeout(p2p, 0, 100000);
3254 return;
3255 }
96beff11 3256 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3257}
3258
3259
3260static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3261{
3262 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3263 p2p_set_state(p2p, P2P_INVITE);
3264 p2p_invite_send(p2p, p2p->invite_peer,
3265 p2p->invite_go_dev_addr);
3266 } else {
3267 if (p2p->invite_peer) {
3268 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3269 "P2P: Invitation Request retry limit reached");
3270 if (p2p->cfg->invitation_result)
3271 p2p->cfg->invitation_result(
3272 p2p->cfg->cb_ctx, -1, NULL);
3273 }
3274 p2p_set_state(p2p, P2P_IDLE);
3275 }
3276}
3277
3278
3279static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3280{
3281 struct p2p_data *p2p = eloop_ctx;
3282
3283 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
3284 p2p_state_txt(p2p->state));
3285
3286 p2p->in_listen = 0;
3287
3288 switch (p2p->state) {
3289 case P2P_IDLE:
6b56cc2d
JS		 3290 /* Check if we timed out waiting for PD req */
3291 if (p2p->pending_action_state == P2P_PENDING_PD)
3292 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3293 break;
3294 case P2P_SEARCH:
6b56cc2d
JS		 3295 /* Check if we timed out waiting for PD req */
3296 if (p2p->pending_action_state == P2P_PENDING_PD)
3297 p2p_timeout_prov_disc_req(p2p);
37448ede
JM		 3298 if (p2p->search_delay && !p2p->in_search_delay) {
3299 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay "
3300 "search operation by %u ms",
3301 p2p->search_delay);
3302 p2p->in_search_delay = 1;
3303 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3304 (p2p->search_delay % 1000) * 1000);
3305 break;
3306 }
3307 p2p->in_search_delay = 0;
b22128ef
JM		 3308 p2p_search(p2p);
3309 break;
3310 case P2P_CONNECT:
3311 p2p_timeout_connect(p2p);
3312 break;
3313 case P2P_CONNECT_LISTEN:
3314 p2p_timeout_connect_listen(p2p);
3315 break;
3316 case P2P_GO_NEG:
3317 break;
3318 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3319 /* Check if we timed out waiting for PD req */
3320 if (p2p->pending_action_state == P2P_PENDING_PD)
3321 p2p_timeout_prov_disc_req(p2p);
3322
b22128ef
JM		 3323 if (p2p->ext_listen_only) {
3324 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3325 "P2P: Extended Listen Timing - Listen State "
3326 "completed");
3327 p2p->ext_listen_only = 0;
3328 p2p_set_state(p2p, P2P_IDLE);
3329 }
3330 break;
3331 case P2P_WAIT_PEER_CONNECT:
3332 p2p_timeout_wait_peer_connect(p2p);
3333 break;
3334 case P2P_WAIT_PEER_IDLE:
3335 p2p_timeout_wait_peer_idle(p2p);
3336 break;
3337 case P2P_SD_DURING_FIND:
3338 p2p_timeout_sd_during_find(p2p);
3339 break;
3340 case P2P_PROVISIONING:
3341 break;
3342 case P2P_PD_DURING_FIND:
3343 p2p_timeout_prov_disc_during_find(p2p);
3344 break;
3345 case P2P_INVITE:
3346 p2p_timeout_invite(p2p);
3347 break;
3348 case P2P_INVITE_LISTEN:
3349 p2p_timeout_invite_listen(p2p);
3350 break;
39185dfa
JM		 3351 case P2P_SEARCH_WHEN_READY:
3352 break;
99fcd404
JM		 3353 case P2P_CONTINUE_SEARCH_WHEN_READY:
3354 break;
b22128ef
JM		 3355 }
3356}
3357
3358
3359int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3360{
3361 struct p2p_device *dev;
3362
3363 dev = p2p_get_device(p2p, peer_addr);
3364 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
3365 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
3366 if (dev == NULL) {
3367 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
3368 " unknown", MAC2STR(peer_addr));
3369 return -1;
3370 }
3371 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3372 dev->flags |= P2P_DEV_USER_REJECTED;
3373 return 0;
3374}
3375
3376
e5a359cf 3377const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3378{
3379 switch (method) {
3380 case WPS_NOT_READY:
3381 return "not-ready";
b22128ef
JM		 3382 case WPS_PIN_DISPLAY:
3383 return "Display";
3384 case WPS_PIN_KEYPAD:
3385 return "Keypad";
3386 case WPS_PBC:
3387 return "PBC";
3388 }
3389
3390 return "??";
3391}
3392
3393
3394static const char * p2p_go_state_text(enum p2p_go_state go_state)
3395{
3396 switch (go_state) {
3397 case UNKNOWN_GO:
3398 return "unknown";
3399 case LOCAL_GO:
3400 return "local";
3401 case REMOTE_GO:
3402 return "remote";
3403 }
3404
3405 return "??";
3406}
3407
3408
b3ffc80b
JM		 3409const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3410 const u8 *addr, int next)
b22128ef
JM		 3411{
3412 struct p2p_device *dev;
b22128ef
JM		 3413
3414 if (addr)
3415 dev = p2p_get_device(p2p, addr);
3416 else
3417 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3418
3419 if (dev && next) {
3420 dev = dl_list_first(&dev->list, struct p2p_device, list);
3421 if (&dev->list == &p2p->devices)
3422 dev = NULL;
3423 }
3424
3425 if (dev == NULL)
b3ffc80b
JM		 3426 return NULL;
3427
3428 return &dev->info;
3429}
3430
3431
3432int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3433 char *buf, size_t buflen)
3434{
3435 struct p2p_device *dev;
3436 int res;
3437 char *pos, *end;
3438 struct os_time now;
3439
3440 if (info == NULL)
b22128ef
JM		 3441 return -1;
3442
b3ffc80b
JM		 3443 dev = (struct p2p_device *) (((u8 *) info) -
3444 offsetof(struct p2p_device, info));
3445
b22128ef
JM		 3446 pos = buf;
3447 end = buf + buflen;
3448
b22128ef
JM		 3449 os_get_time(&now);
3450 res = os_snprintf(pos, end - pos,
3451 "age=%d\n"
3452 "listen_freq=%d\n"
b22128ef
JM		 3453 "wps_method=%s\n"
3454 "interface_addr=" MACSTR "\n"
3455 "member_in_go_dev=" MACSTR "\n"
3456 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3457 "go_neg_req_sent=%d\n"
3458 "go_state=%s\n"
3459 "dialog_token=%u\n"
3460 "intended_addr=" MACSTR "\n"
3461 "country=%c%c\n"
3462 "oper_freq=%d\n"
3463 "req_config_methods=0x%x\n"
10c4edde 3464 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3465 "status=%d\n"
3466 "wait_count=%u\n"
3467 "invitation_reqs=%u\n",
3468 (int) (now.sec - dev->last_seen.sec),
3469 dev->listen_freq,
b22128ef
JM		 3470 p2p_wps_method_text(dev->wps_method),
3471 MAC2STR(dev->interface_addr),
3472 MAC2STR(dev->member_in_go_dev),
3473 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3474 dev->go_neg_req_sent,
3475 p2p_go_state_text(dev->go_state),
3476 dev->dialog_token,
3477 MAC2STR(dev->intended_addr),
3478 dev->country[0] ? dev->country[0] : '_',
3479 dev->country[1] ? dev->country[1] : '_',
3480 dev->oper_freq,
3481 dev->req_config_methods,
3482 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3483 "[PROBE_REQ_ONLY]" : "",
3484 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3485 dev->flags & P2P_DEV_NOT_YET_READY ?
3486 "[NOT_YET_READY]" : "",
3487 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3488 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3489 "",
3490 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3491 "[PD_PEER_DISPLAY]" : "",
3492 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3493 "[PD_PEER_KEYPAD]" : "",
3494 dev->flags & P2P_DEV_USER_REJECTED ?
3495 "[USER_REJECTED]" : "",
3496 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3497 "[PEER_WAITING_RESPONSE]" : "",
3498 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3499 "[PREFER_PERSISTENT_GROUP]" : "",
3500 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3501 "[WAIT_GO_NEG_RESPONSE]" : "",
3502 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3503 "[WAIT_GO_NEG_CONFIRM]" : "",
3504 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3505 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3506 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3507 "[FORCE_FREQ]" : "",
3508 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3509 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3510 dev->status,
3511 dev->wait_count,
3512 dev->invitation_reqs);
3513 if (res < 0 || res >= end - pos)
3514 return pos - buf;
3515 pos += res;
3516
3517 if (dev->ext_listen_period) {
3518 res = os_snprintf(pos, end - pos,
3519 "ext_listen_period=%u\n"
3520 "ext_listen_interval=%u\n",
3521 dev->ext_listen_period,
3522 dev->ext_listen_interval);
3523 if (res < 0 || res >= end - pos)
3524 return pos - buf;
3525 pos += res;
3526 }
3527
3528 if (dev->oper_ssid_len) {
3529 res = os_snprintf(pos, end - pos,
3530 "oper_ssid=%s\n",
3531 wpa_ssid_txt(dev->oper_ssid,
3532 dev->oper_ssid_len));
3533 if (res < 0 || res >= end - pos)
3534 return pos - buf;
3535 pos += res;
3536 }
3537
9675ce35
JM		 3538#ifdef CONFIG_WIFI_DISPLAY
3539 if (dev->info.wfd_subelems) {
3540 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3541 if (res < 0 || res >= end - pos)
3542 return pos - buf;
3543 pos += res;
3544
3545 pos += wpa_snprintf_hex(pos, end - pos,
3546 wpabuf_head(dev->info.wfd_subelems),
3547 wpabuf_len(dev->info.wfd_subelems));
3548
3549 res = os_snprintf(pos, end - pos, "\n");
3550 if (res < 0 || res >= end - pos)
3551 return pos - buf;
3552 pos += res;
3553 }
3554#endif /* CONFIG_WIFI_DISPLAY */
3555
b22128ef
JM		 3556 return pos - buf;
3557}
3558
3559
b3bcc0f5
JM		 3560int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3561{
3562 return p2p_get_device(p2p, addr) != NULL;
3563}
3564
3565
b22128ef
JM		 3566void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3567{
3568 if (enabled) {
3569 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3570 "discoverability enabled");
3571 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3572 } else {
3573 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3574 "discoverability disabled");
3575 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3576 }
3577}
3578
3579
3580static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3581 u32 duration2, u32 interval2)
3582{
3583 struct wpabuf *req;
3584 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3585 u8 *len;
3586
3587 req = wpabuf_alloc(100);
3588 if (req == NULL)
3589 return NULL;
3590
3591 if (duration1 || interval1) {
3592 os_memset(&desc1, 0, sizeof(desc1));
3593 desc1.count_type = 1;
3594 desc1.duration = duration1;
3595 desc1.interval = interval1;
3596 ptr1 = &desc1;
3597
3598 if (duration2 || interval2) {
3599 os_memset(&desc2, 0, sizeof(desc2));
3600 desc2.count_type = 2;
3601 desc2.duration = duration2;
3602 desc2.interval = interval2;
3603 ptr2 = &desc2;
3604 }
3605 }
3606
3607 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3608 len = p2p_buf_add_ie_hdr(req);
3609 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3610 p2p_buf_update_ie_hdr(req, len);
3611
3612 return req;
3613}
3614
3615
3616int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3617 const u8 *own_interface_addr, unsigned int freq,
3618 u32 duration1, u32 interval1, u32 duration2,
3619 u32 interval2)
3620{
3621 struct wpabuf *req;
3622
3623 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
3624 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
3625 "int1=%u dur2=%u int2=%u",
3626 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3627 freq, duration1, interval1, duration2, interval2);
3628
3629 req = p2p_build_presence_req(duration1, interval1, duration2,
3630 interval2);
3631 if (req == NULL)
3632 return -1;
3633
3634 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3635 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3636 go_interface_addr,
3637 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
b22128ef
JM		 3638 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3639 "P2P: Failed to send Action frame");
3640 }
3641 wpabuf_free(req);
3642
3643 return 0;
3644}
3645
3646
3647static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3648 size_t noa_len, u8 dialog_token)
3649{
3650 struct wpabuf *resp;
3651 u8 *len;
3652
3653 resp = wpabuf_alloc(100 + noa_len);
3654 if (resp == NULL)
3655 return NULL;
3656
3657 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3658 len = p2p_buf_add_ie_hdr(resp);
3659 p2p_buf_add_status(resp, status);
3660 if (noa) {
3661 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3662 wpabuf_put_le16(resp, noa_len);
3663 wpabuf_put_data(resp, noa, noa_len);
3664 } else
3665 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3666 p2p_buf_update_ie_hdr(resp, len);
3667
3668 return resp;
3669}
3670
3671
3672static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3673 const u8 *sa, const u8 *data, size_t len,
3674 int rx_freq)
3675{
3676 struct p2p_message msg;
3677 u8 status;
3678 struct wpabuf *resp;
3679 size_t g;
3680 struct p2p_group *group = NULL;
3681 int parsed = 0;
3682 u8 noa[50];
3683 int noa_len;
3684
3685 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3686 "P2P: Received P2P Action - P2P Presence Request");
3687
3688 for (g = 0; g < p2p->num_groups; g++) {
3689 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3690 ETH_ALEN) == 0) {
3691 group = p2p->groups[g];
3692 break;
3693 }
3694 }
3695 if (group == NULL) {
3696 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3697 "P2P: Ignore P2P Presence Request for unknown group "
3698 MACSTR, MAC2STR(da));
3699 return;
3700 }
3701
3702 if (p2p_parse(data, len, &msg) < 0) {
3703 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3704 "P2P: Failed to parse P2P Presence Request");
3705 status = P2P_SC_FAIL_INVALID_PARAMS;
3706 goto fail;
3707 }
3708 parsed = 1;
3709
3710 if (msg.noa == NULL) {
3711 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3712 "P2P: No NoA attribute in P2P Presence Request");
3713 status = P2P_SC_FAIL_INVALID_PARAMS;
3714 goto fail;
3715 }
3716
3717 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3718
3719fail:
3720 if (p2p->cfg->get_noa)
3721 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3722 sizeof(noa));
3723 else
3724 noa_len = -1;
3725 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3726 noa_len > 0 ? noa_len : 0,
3727 msg.dialog_token);
3728 if (parsed)
3729 p2p_parse_free(&msg);
3730 if (resp == NULL)
3731 return;
3732
3733 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3734 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3735 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
b22128ef
JM		 3736 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3737 "P2P: Failed to send Action frame");
3738 }
3739 wpabuf_free(resp);
3740}
3741
3742
3743static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3744 const u8 *sa, const u8 *data, size_t len)
3745{
3746 struct p2p_message msg;
3747
3748 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3749 "P2P: Received P2P Action - P2P Presence Response");
3750
3751 if (p2p_parse(data, len, &msg) < 0) {
3752 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3753 "P2P: Failed to parse P2P Presence Response");
3754 return;
3755 }
3756
3757 if (msg.status == NULL || msg.noa == NULL) {
3758 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3759 "P2P: No Status or NoA attribute in P2P Presence "
3760 "Response");
3761 p2p_parse_free(&msg);
3762 return;
3763 }
3764
3765 if (*msg.status) {
3766 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3767 "P2P: P2P Presence Request was rejected: status %u",
3768 *msg.status);
3769 p2p_parse_free(&msg);
3770 return;
3771 }
3772
3773 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3774 "P2P: P2P Presence Request was accepted");
3775 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3776 msg.noa, msg.noa_len);
3777 /* TODO: process NoA */
3778 p2p_parse_free(&msg);
3779}
3780
3781
3782static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3783{
3784 struct p2p_data *p2p = eloop_ctx;
3785
3786 if (p2p->ext_listen_interval) {
3787 /* Schedule next extended listen timeout */
3788 eloop_register_timeout(p2p->ext_listen_interval_sec,
3789 p2p->ext_listen_interval_usec,
3790 p2p_ext_listen_timeout, p2p, NULL);
3791 }
3792
f7a69057
JM		 3793 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3794 /*
3795 * This should not really happen, but it looks like the Listen
3796 * command may fail is something else (e.g., a scan) was
3797 * running at an inconvenient time. As a workaround, allow new
3798 * Extended Listen operation to be started.
3799 */
3800 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
3801 "Extended Listen operation had not been completed - "
3802 "try again");
3803 p2p->ext_listen_only = 0;
3804 p2p_set_state(p2p, P2P_IDLE);
3805 }
3806
b22128ef
JM		 3807 if (p2p->state != P2P_IDLE) {
3808 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
3809 "Listen timeout in active state (%s)",
3810 p2p_state_txt(p2p->state));
3811 return;
3812 }
3813
3814 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
3815 p2p->ext_listen_only = 1;
3816 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
3817 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
3818 "Listen state for Extended Listen Timing");
3819 p2p->ext_listen_only = 0;
3820 }
3821}
3822
3823
3824int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3825 unsigned int interval)
3826{
3827 if (period > 65535 || interval > 65535 || period > interval ||
3828 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
3829 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3830 "P2P: Invalid Extended Listen Timing request: "
3831 "period=%u interval=%u", period, interval);
3832 return -1;
3833 }
3834
3835 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3836
3837 if (interval == 0) {
3838 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3839 "P2P: Disabling Extended Listen Timing");
3840 p2p->ext_listen_period = 0;
3841 p2p->ext_listen_interval = 0;
3842 return 0;
3843 }
3844
3845 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3846 "P2P: Enabling Extended Listen Timing: period %u msec, "
3847 "interval %u msec", period, interval);
3848 p2p->ext_listen_period = period;
3849 p2p->ext_listen_interval = interval;
3850 p2p->ext_listen_interval_sec = interval / 1000;
3851 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3852
3853 eloop_register_timeout(p2p->ext_listen_interval_sec,
3854 p2p->ext_listen_interval_usec,
3855 p2p_ext_listen_timeout, p2p, NULL);
3856
3857 return 0;
3858}
3859
3860
3861void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3862 const u8 *ie, size_t ie_len)
3863{
3864 struct p2p_message msg;
3865
3866 if (bssid == NULL || ie == NULL)
3867 return;
3868
3869 os_memset(&msg, 0, sizeof(msg));
3870 if (p2p_parse_ies(ie, ie_len, &msg))
3871 return;
3872 if (msg.minor_reason_code == NULL)
3873 return;
3874
3875 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3876 "P2P: Deauthentication notification BSSID " MACSTR
3877 " reason_code=%u minor_reason_code=%u",
3878 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3879
3880 p2p_parse_free(&msg);
3881}
3882
3883
3884void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3885 const u8 *ie, size_t ie_len)
3886{
3887 struct p2p_message msg;
3888
3889 if (bssid == NULL || ie == NULL)
3890 return;
3891
3892 os_memset(&msg, 0, sizeof(msg));
3893 if (p2p_parse_ies(ie, ie_len, &msg))
3894 return;
3895 if (msg.minor_reason_code == NULL)
3896 return;
3897
3898 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3899 "P2P: Disassociation notification BSSID " MACSTR
3900 " reason_code=%u minor_reason_code=%u",
3901 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3902
3903 p2p_parse_free(&msg);
3904}
3905
3906
3907void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3908{
3909 if (enabled) {
3910 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3911 "Device operations enabled");
3912 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3913 } else {
3914 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3915 "Device operations disabled");
3916 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3917 }
3918}
3919
3920
3921int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3922{
3923 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
3924 return -1;
3925
3926 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
3927 "reg_class %u channel %u", reg_class, channel);
3928 p2p->cfg->reg_class = reg_class;
3929 p2p->cfg->channel = channel;
3930
3931 return 0;
3932}
3933
3934
3935int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3936{
3937 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
3938 if (postfix == NULL) {
3939 p2p->cfg->ssid_postfix_len = 0;
3940 return 0;
3941 }
3942 if (len > sizeof(p2p->cfg->ssid_postfix))
3943 return -1;
3944 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3945 p2p->cfg->ssid_postfix_len = len;
3946 return 0;
3947}
3948
3949
2463ba70
JS		 3950int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3951 int cfg_op_channel)
3952{
3953 if (p2p_channel_to_freq(p2p->cfg->country, op_reg_class, op_channel)
3954 < 0)
3955 return -1;
3956
3957 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, "P2P: Set Operating channel: "
3958 "reg_class %u channel %u", op_reg_class, op_channel);
3959 p2p->cfg->op_reg_class = op_reg_class;
3960 p2p->cfg->op_channel = op_channel;
3961 p2p->cfg->cfg_op_channel = cfg_op_channel;
3962 return 0;
3963}
3964
3965
21d996f7
JM		 3966int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
3967 const struct p2p_channel *pref_chan)
3968{
3969 struct p2p_channel *n;
3970
3971 if (pref_chan) {
3972 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
3973 if (n == NULL)
3974 return -1;
3975 os_memcpy(n, pref_chan,
3976 num_pref_chan * sizeof(struct p2p_channel));
3977 } else
3978 n = NULL;
3979
3980 os_free(p2p->cfg->pref_chan);
3981 p2p->cfg->pref_chan = n;
3982 p2p->cfg->num_pref_chan = num_pref_chan;
3983
3984 return 0;
3985}
3986
3987
b22128ef
JM		 3988int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3989 u8 *iface_addr)
3990{
3991 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3992 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3993 return -1;
3994 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3995 return 0;
3996}
80c9582a
JM		 3997
3998
4147a2cc
JM		 3999int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4000 u8 *dev_addr)
4001{
4002 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4003 if (dev == NULL)
4004 return -1;
c5db8e51 4005 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4006 return 0;
4007}
4008
4009
80c9582a
JM		 4010void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4011{
4012 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4013 if (is_zero_ether_addr(p2p->peer_filter))
4014 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
4015 "filter");
4016 else
4017 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
4018 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
4019}
72044390
JM		 4020
4021
4022void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4023{
4024 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
4025 enabled ? "enabled" : "disabled");
4026 if (p2p->cross_connect == enabled)
4027 return;
4028 p2p->cross_connect = enabled;
4029 /* TODO: may need to tear down any action group where we are GO(?) */
4030}
f8d0131a
JM		 4031
4032
4033int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4034{
4035 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4036 if (dev == NULL)
4037 return -1;
4038 if (dev->oper_freq <= 0)
4039 return -1;
4040 return dev->oper_freq;
4041}
0f66abd2
SS		 4042
4043
4044void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4045{
4046 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
4047 enabled ? "enabled" : "disabled");
4048 p2p->cfg->p2p_intra_bss = enabled;
4049}
b5c9da8d
JM		 4050
4051
4052void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
4053{
4054 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
4055 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
4056}
3f9285ff
JM		 4057
4058
4059int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4060 const u8 *src, const u8 *bssid, const u8 *buf,
4061 size_t len, unsigned int wait_time)
4062{
4063 if (p2p->p2p_scan_running) {
4064 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
4065 "frame TX until p2p_scan completes");
4066 if (p2p->after_scan_tx) {
4067 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
4068 "previous pending Action frame TX");
4069 os_free(p2p->after_scan_tx);
4070 }
4071 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4072 len);
4073 if (p2p->after_scan_tx == NULL)
4074 return -1;
4075 p2p->after_scan_tx->freq = freq;
4076 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4077 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4078 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4079 p2p->after_scan_tx->len = len;
4080 p2p->after_scan_tx->wait_time = wait_time;
4081 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4082 return 0;
4083 }
4084
4085 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4086 buf, len, wait_time);
4087}
7cfc4ac3
AGS		 4088
4089
4090void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4091 int freq_overall)
4092{
4093 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Best channel: 2.4 GHz: %d,"
4094 " 5 GHz: %d, overall: %d", freq_24, freq_5, freq_overall);
4095 p2p->best_freq_24 = freq_24;
4096 p2p->best_freq_5 = freq_5;
4097 p2p->best_freq_overall = freq_overall;
4098}
231bbd03
SS		 4099
4100
4101const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4102{
4103 if (p2p == NULL || p2p->go_neg_peer == NULL)
4104 return NULL;
c5db8e51 4105 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4106}
c165d81e
JB		 4107
4108
4109const struct p2p_peer_info *
4110p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4111{
4112 struct p2p_device *dev;
4113
4114 if (addr) {
4115 dev = p2p_get_device(p2p, addr);
4116 if (!dev)
4117 return NULL;
4118
4119 if (!next) {
4120 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4121 return NULL;
4122
4123 return &dev->info;
4124 } else {
4125 do {
4126 dev = dl_list_first(&dev->list,
4127 struct p2p_device,
4128 list);
4129 if (&dev->list == &p2p->devices)
4130 return NULL;
4131 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4132 }
4133 } else {
4134 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4135 if (!dev)
4136 return NULL;
4137 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4138 dev = dl_list_first(&dev->list,
4139 struct p2p_device,
4140 list);
4141 if (&dev->list == &p2p->devices)
4142 return NULL;
4143 }
4144 }
4145
4146 return &dev->info;
4147}
303f60d3
JM		 4148
4149
4150int p2p_in_progress(struct p2p_data *p2p)
4151{
4152 if (p2p == NULL)
4153 return 0;
99fcd404
JM		 4154 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SEARCH_WHEN_READY ||
4155 p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY)
4156 return 2;
fc6997b3 4157 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4158}
4f219667
JM		 4159
4160
4161void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4162 u8 client_timeout)
4163{
4164 if (p2p) {
4165 p2p->go_timeout = go_timeout;
4166 p2p->client_timeout = client_timeout;
4167 }
4168}
99fcd404
JM		 4169
4170
4171void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay)
4172{
4173 if (p2p && p2p->search_delay < delay)
4174 p2p->search_delay = delay;
4175}
9675ce35
JM		 4176
4177
4178#ifdef CONFIG_WIFI_DISPLAY
4179
4180static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4181{
4182 size_t g;
4183 struct p2p_group *group;
4184
4185 for (g = 0; g < p2p->num_groups; g++) {
4186 group = p2p->groups[g];
4187 p2p_group_update_ies(group);
4188 }
4189}
4190
4191
4192int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4193{
4194 wpabuf_free(p2p->wfd_ie_beacon);
4195 p2p->wfd_ie_beacon = ie;
4196 p2p_update_wfd_ie_groups(p2p);
4197 return 0;
4198}
4199
4200
4201int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4202{
4203 wpabuf_free(p2p->wfd_ie_probe_req);
4204 p2p->wfd_ie_probe_req = ie;
4205 return 0;
4206}
4207
4208
4209int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4210{
4211 wpabuf_free(p2p->wfd_ie_probe_resp);
4212 p2p->wfd_ie_probe_resp = ie;
4213 p2p_update_wfd_ie_groups(p2p);
4214 return 0;
4215}
4216
4217
4218int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4219{
4220 wpabuf_free(p2p->wfd_ie_assoc_req);
4221 p2p->wfd_ie_assoc_req = ie;
4222 return 0;
4223}
4224
4225
4226int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4227{
4228 wpabuf_free(p2p->wfd_ie_invitation);
4229 p2p->wfd_ie_invitation = ie;
4230 return 0;
4231}
4232
4233
4234int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4235{
4236 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4237 p2p->wfd_ie_prov_disc_req = ie;
4238 return 0;
4239}
4240
4241
4242int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4243{
4244 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4245 p2p->wfd_ie_prov_disc_resp = ie;
4246 return 0;
4247}
4248
4249
4250int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4251{
4252 wpabuf_free(p2p->wfd_ie_go_neg);
4253 p2p->wfd_ie_go_neg = ie;
4254 return 0;
4255}
4256
4257
4258int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4259{
4260 wpabuf_free(p2p->wfd_dev_info);
4261 if (elem) {
4262 p2p->wfd_dev_info = wpabuf_dup(elem);
4263 if (p2p->wfd_dev_info == NULL)
4264 return -1;
4265 } else
4266 p2p->wfd_dev_info = NULL;
4267
4268 return 0;
4269}
4270
4271
4272int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4273{
4274 wpabuf_free(p2p->wfd_assoc_bssid);
4275 if (elem) {
4276 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4277 if (p2p->wfd_assoc_bssid == NULL)
4278 return -1;
4279 } else
4280 p2p->wfd_assoc_bssid = NULL;
4281
4282 return 0;
4283}
4284
4285
4286int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4287 const struct wpabuf *elem)
4288{
4289 wpabuf_free(p2p->wfd_coupled_sink_info);
4290 if (elem) {
4291 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4292 if (p2p->wfd_coupled_sink_info == NULL)
4293 return -1;
4294 } else
4295 p2p->wfd_coupled_sink_info = NULL;
4296
4297 return 0;
4298}
4299
4300#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4301
4302
4303int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4304 int max_disc_tu)
4305{
4306 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4307 return -1;
4308
4309 p2p->min_disc_int = min_disc_int;
4310 p2p->max_disc_int = max_disc_int;
4311 p2p->max_disc_tu = max_disc_tu;
4312 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set discoverable interval: "
4313 "min=%d max=%d max_tu=%d", min_disc_int, max_disc_int,
4314 max_disc_tu);
4315
4316 return 0;
4317}
Unnamed repository; edit this file 'description' to name the repository.