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P2P: Set Invitation Type to 1 for GO inviting to a persistent group
[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 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
18#include "eloop.h"
19#include "common/ieee802_11_defs.h"
20#include "common/ieee802_11_common.h"
8aebb0e4 21#include "common/wpa_ctrl.h"
b22128ef
JM		 22#include "wps/wps_i.h"
23#include "p2p_i.h"
24#include "p2p.h"
25
26
27static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
28static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
29static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
30 const u8 *sa, const u8 *data, size_t len,
31 int rx_freq);
32static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
33 const u8 *sa, const u8 *data,
34 size_t len);
35static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 36static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 37
38
40c03fd4
JM		 39/*
40 * p2p_scan recovery timeout
41 *
42 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
43 * timeout for this to avoid hitting P2P timeout unnecessarily.
44 */
45#define P2P_SCAN_TIMEOUT 35
46
b22128ef
JM		 47/**
48 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
49 * entries will be removed
50 */
51#define P2P_PEER_EXPIRATION_AGE 300
52
53#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
54
55static void p2p_expire_peers(struct p2p_data *p2p)
56{
57 struct p2p_device *dev, *n;
58 struct os_time now;
1d277f02 59 size_t i;
b22128ef
JM		 60
61 os_get_time(&now);
62 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
63 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
64 continue;
b1aebbc4
JM		 65
66 if (p2p->cfg->go_connected &&
67 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
68 dev->info.p2p_device_addr)) {
69 /*
70 * We are connected as a client to a group in which the
71 * peer is the GO, so do not expire the peer entry.
72 */
73 os_get_time(&dev->last_seen);
74 continue;
75 }
76
1d277f02
JM		 77 for (i = 0; i < p2p->num_groups; i++) {
78 if (p2p_group_is_client_connected(
79 p2p->groups[i], dev->info.p2p_device_addr))
80 break;
81 }
82 if (i < p2p->num_groups) {
83 /*
84 * The peer is connected as a client in a group where
85 * we are the GO, so do not expire the peer entry.
86 */
87 os_get_time(&dev->last_seen);
88 continue;
89 }
90
b22128ef 91 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
c5db8e51 92 "entry " MACSTR, MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 93 dl_list_del(&dev->list);
94 p2p_device_free(p2p, dev);
95 }
96}
97
98
99static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
100{
101 struct p2p_data *p2p = eloop_ctx;
102 p2p_expire_peers(p2p);
103 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
104 p2p_expiration_timeout, p2p, NULL);
105}
106
107
108static const char * p2p_state_txt(int state)
109{
110 switch (state) {
111 case P2P_IDLE:
112 return "IDLE";
113 case P2P_SEARCH:
114 return "SEARCH";
115 case P2P_CONNECT:
116 return "CONNECT";
117 case P2P_CONNECT_LISTEN:
118 return "CONNECT_LISTEN";
119 case P2P_GO_NEG:
120 return "GO_NEG";
121 case P2P_LISTEN_ONLY:
122 return "LISTEN_ONLY";
123 case P2P_WAIT_PEER_CONNECT:
124 return "WAIT_PEER_CONNECT";
125 case P2P_WAIT_PEER_IDLE:
126 return "WAIT_PEER_IDLE";
127 case P2P_SD_DURING_FIND:
128 return "SD_DURING_FIND";
129 case P2P_PROVISIONING:
130 return "PROVISIONING";
131 case P2P_PD_DURING_FIND:
132 return "PD_DURING_FIND";
133 case P2P_INVITE:
134 return "INVITE";
135 case P2P_INVITE_LISTEN:
136 return "INVITE_LISTEN";
39185dfa
JM		 137 case P2P_SEARCH_WHEN_READY:
138 return "SEARCH_WHEN_READY";
b22128ef
JM		 139 default:
140 return "?";
141 }
142}
143
144
ec437d9e
JJ		 145u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
146{
147 struct p2p_device *dev = NULL;
148
149 if (!addr || !p2p)
150 return 0;
151
152 dev = p2p_get_device(p2p, addr);
153 if (dev)
154 return dev->wps_prov_info;
155 else
156 return 0;
157}
158
159
160void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *iface_addr)
161{
162 struct p2p_device *dev = NULL;
163
164 if (!iface_addr || !p2p)
165 return;
166
167 dev = p2p_get_device_interface(p2p, iface_addr);
168 if (dev)
169 dev->wps_prov_info = 0;
170}
171
172
b22128ef
JM		 173void p2p_set_state(struct p2p_data *p2p, int new_state)
174{
175 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
176 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
177 p2p->state = new_state;
178}
179
180
181void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
182{
183 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
184 "P2P: Set timeout (state=%s): %u.%06u sec",
185 p2p_state_txt(p2p->state), sec, usec);
186 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
187 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
188}
189
190
191void p2p_clear_timeout(struct p2p_data *p2p)
192{
193 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
194 p2p_state_txt(p2p->state));
195 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
196}
197
198
199void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
200 int status)
201{
202 struct p2p_go_neg_results res;
203 p2p_clear_timeout(p2p);
204 p2p_set_state(p2p, P2P_IDLE);
eb916eb8
JB		 205 if (p2p->go_neg_peer)
206 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
b22128ef
JM		 207 p2p->go_neg_peer = NULL;
208
209 os_memset(&res, 0, sizeof(res));
210 res.status = status;
211 if (peer) {
c5db8e51 212 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 213 ETH_ALEN);
214 os_memcpy(res.peer_interface_addr, peer->intended_addr,
215 ETH_ALEN);
216 }
217 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
218}
219
220
221static void p2p_listen_in_find(struct p2p_data *p2p)
222{
223 unsigned int r, tu;
224 int freq;
225 struct wpabuf *ies;
226
227 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
228 "P2P: Starting short listen state (state=%s)",
229 p2p_state_txt(p2p->state));
230
231 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
232 p2p->cfg->channel);
233 if (freq < 0) {
234 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
235 "P2P: Unknown regulatory class/channel");
236 return;
237 }
238
239 os_get_random((u8 *) &r, sizeof(r));
240 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
241 p2p->min_disc_int) * 100;
242
243 p2p->pending_listen_freq = freq;
244 p2p->pending_listen_sec = 0;
245 p2p->pending_listen_usec = 1024 * tu;
246
247 ies = p2p_build_probe_resp_ies(p2p);
248 if (ies == NULL)
249 return;
250
251 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
252 ies) < 0) {
253 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
254 "P2P: Failed to start listen mode");
255 p2p->pending_listen_freq = 0;
256 }
257 wpabuf_free(ies);
258}
259
260
261int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
262{
263 int freq;
264 struct wpabuf *ies;
265
266 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
267 "P2P: Going to listen(only) state");
268
269 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
270 p2p->cfg->channel);
271 if (freq < 0) {
272 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
273 "P2P: Unknown regulatory class/channel");
274 return -1;
275 }
276
277 p2p->pending_listen_freq = freq;
278 p2p->pending_listen_sec = timeout / 1000;
279 p2p->pending_listen_usec = (timeout % 1000) * 1000;
280
281 if (p2p->p2p_scan_running) {
d9bdba9f
JM		 282 if (p2p->start_after_scan == P2P_AFTER_SCAN_NOTHING) {
283 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
284 "P2P: p2p_scan running - connect is already "
285 "pending - skip listen");
286 return 0;
287 }
b22128ef
JM		 288 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
289 "P2P: p2p_scan running - delay start of listen state");
290 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
291 return 0;
292 }
293
294 ies = p2p_build_probe_resp_ies(p2p);
295 if (ies == NULL)
296 return -1;
297
298 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
299 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
300 "P2P: Failed to start listen mode");
301 p2p->pending_listen_freq = 0;
302 wpabuf_free(ies);
303 return -1;
304 }
305 wpabuf_free(ies);
306
307 p2p_set_state(p2p, P2P_LISTEN_ONLY);
308
309 return 0;
310}
311
312
313static void p2p_device_clear_reported(struct p2p_data *p2p)
314{
315 struct p2p_device *dev;
316 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
317 dev->flags &= ~P2P_DEV_REPORTED;
318}
319
320
321/**
322 * p2p_get_device - Fetch a peer entry
323 * @p2p: P2P module context from p2p_init()
324 * @addr: P2P Device Address of the peer
325 * Returns: Pointer to the device entry or %NULL if not found
326 */
327struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
328{
329 struct p2p_device *dev;
330 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 331 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 332 return dev;
333 }
334 return NULL;
335}
336
337
338/**
339 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
340 * @p2p: P2P module context from p2p_init()
341 * @addr: P2P Interface Address of the peer
342 * Returns: Pointer to the device entry or %NULL if not found
343 */
344struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
345 const u8 *addr)
346{
347 struct p2p_device *dev;
348 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
349 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
350 return dev;
351 }
352 return NULL;
353}
354
355
356/**
357 * p2p_create_device - Create a peer entry
358 * @p2p: P2P module context from p2p_init()
359 * @addr: P2P Device Address of the peer
360 * Returns: Pointer to the device entry or %NULL on failure
361 *
362 * If there is already an entry for the peer, it will be returned instead of
363 * creating a new one.
364 */
365static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
366 const u8 *addr)
367{
368 struct p2p_device *dev, *oldest = NULL;
369 size_t count = 0;
370
371 dev = p2p_get_device(p2p, addr);
372 if (dev)
373 return dev;
374
375 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
376 count++;
377 if (oldest == NULL ||
378 os_time_before(&dev->last_seen, &oldest->last_seen))
379 oldest = dev;
380 }
381 if (count + 1 > p2p->cfg->max_peers && oldest) {
382 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
383 "P2P: Remove oldest peer entry to make room for a new "
384 "peer");
385 dl_list_del(&oldest->list);
386 p2p_device_free(p2p, oldest);
387 }
388
389 dev = os_zalloc(sizeof(*dev));
390 if (dev == NULL)
391 return NULL;
392 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 393 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 394
395 return dev;
396}
397
398
399static void p2p_copy_client_info(struct p2p_device *dev,
400 struct p2p_client_info *cli)
401{
c5db8e51
KRK		 402 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
403 dev->info.device_name[cli->dev_name_len] = '\0';
404 dev->info.dev_capab = cli->dev_capab;
405 dev->info.config_methods = cli->config_methods;
406 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 407 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
408 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
409 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 410}
411
412
413static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
414 const u8 *go_interface_addr, int freq,
415 const u8 *gi, size_t gi_len)
416{
417 struct p2p_group_info info;
418 size_t c;
419 struct p2p_device *dev;
420
421 if (gi == NULL)
422 return 0;
423
424 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
425 return -1;
426
427 /*
428 * Clear old data for this group; if the devices are still in the
429 * group, the information will be restored in the loop following this.
430 */
431 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 432 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 433 ETH_ALEN) == 0) {
434 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
435 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
436 }
437 }
438
439 for (c = 0; c < info.num_clients; c++) {
440 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 441 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
442 ETH_ALEN) == 0)
443 continue; /* ignore our own entry */
b22128ef
JM		 444 dev = p2p_get_device(p2p, cli->p2p_device_addr);
445 if (dev) {
446 /*
447 * Update information only if we have not received this
448 * directly from the client.
449 */
450 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
451 P2P_DEV_PROBE_REQ_ONLY))
452 p2p_copy_client_info(dev, cli);
453 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
454 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
455 }
456 } else {
457 dev = p2p_create_device(p2p, cli->p2p_device_addr);
458 if (dev == NULL)
459 continue;
460 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
461 p2p_copy_client_info(dev, cli);
462 dev->oper_freq = freq;
c5db8e51
KRK		 463 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
464 dev->info.p2p_device_addr,
8fd7dc1b
JB		 465 &dev->info, 1);
466 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 467 }
468
469 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
470 ETH_ALEN);
471 os_get_time(&dev->last_seen);
472 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
473 os_memcpy(dev->member_in_go_iface, go_interface_addr,
474 ETH_ALEN);
475 }
476
477 return 0;
478}
479
480
b67d0d9e
JM		 481static void p2p_copy_wps_info(struct p2p_device *dev, int probe_req,
482 const struct p2p_message *msg)
483{
484 os_memcpy(dev->info.device_name, msg->device_name,
485 sizeof(dev->info.device_name));
486
487 if (msg->manufacturer &&
488 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
489 os_memset(dev->info.manufacturer, 0,
490 sizeof(dev->info.manufacturer));
491 os_memcpy(dev->info.manufacturer, msg->manufacturer,
492 msg->manufacturer_len);
493 }
494
495 if (msg->model_name &&
496 msg->model_name_len < sizeof(dev->info.model_name)) {
497 os_memset(dev->info.model_name, 0,
498 sizeof(dev->info.model_name));
499 os_memcpy(dev->info.model_name, msg->model_name,
500 msg->model_name_len);
501 }
502
503 if (msg->model_number &&
504 msg->model_number_len < sizeof(dev->info.model_number)) {
505 os_memset(dev->info.model_number, 0,
506 sizeof(dev->info.model_number));
507 os_memcpy(dev->info.model_number, msg->model_number,
508 msg->model_number_len);
509 }
510
511 if (msg->serial_number &&
512 msg->serial_number_len < sizeof(dev->info.serial_number)) {
513 os_memset(dev->info.serial_number, 0,
514 sizeof(dev->info.serial_number));
515 os_memcpy(dev->info.serial_number, msg->serial_number,
516 msg->serial_number_len);
517 }
518
519 if (msg->pri_dev_type)
520 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
521 sizeof(dev->info.pri_dev_type));
522 else if (msg->wps_pri_dev_type)
523 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
524 sizeof(dev->info.pri_dev_type));
525
526 if (msg->wps_sec_dev_type_list) {
527 os_memcpy(dev->info.wps_sec_dev_type_list,
528 msg->wps_sec_dev_type_list,
529 msg->wps_sec_dev_type_list_len);
530 dev->info.wps_sec_dev_type_list_len =
531 msg->wps_sec_dev_type_list_len;
532 }
533
534 if (msg->capability) {
535 dev->info.dev_capab = msg->capability[0];
536 dev->info.group_capab = msg->capability[1];
537 }
538
539 if (msg->ext_listen_timing) {
540 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
541 dev->ext_listen_interval =
542 WPA_GET_LE16(msg->ext_listen_timing + 2);
543 }
544
545 if (!probe_req) {
546 dev->info.config_methods = msg->config_methods ?
547 msg->config_methods : msg->wps_config_methods;
548 }
549}
550
551
b22128ef
JM		 552/**
553 * p2p_add_device - Add peer entries based on scan results
554 * @p2p: P2P module context from p2p_init()
555 * @addr: Source address of Beacon or Probe Response frame (may be either
556 * P2P Device Address or P2P Interface Address)
557 * @level: Signal level (signal strength of the received frame from the peer)
558 * @freq: Frequency on which the Beacon or Probe Response frame was received
559 * @ies: IEs from the Beacon or Probe Response frame
560 * @ies_len: Length of ies buffer in octets
561 * Returns: 0 on success, -1 on failure
562 *
563 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 564 * to the peer table. This function can also be used with some other frames
565 * like Provision Discovery Request that contains P2P Capability and P2P Device
566 * Info attributes.
b22128ef 567 */
17bef1e9
AC		 568int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
569 const u8 *ies, size_t ies_len)
b22128ef
JM		 570{
571 struct p2p_device *dev;
572 struct p2p_message msg;
573 const u8 *p2p_dev_addr;
6f2c0607 574 int i;
b22128ef
JM		 575
576 os_memset(&msg, 0, sizeof(msg));
577 if (p2p_parse_ies(ies, ies_len, &msg)) {
578 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
579 "P2P: Failed to parse P2P IE for a device entry");
580 p2p_parse_free(&msg);
581 return -1;
582 }
583
584 if (msg.p2p_device_addr)
585 p2p_dev_addr = msg.p2p_device_addr;
586 else if (msg.device_id)
587 p2p_dev_addr = msg.device_id;
588 else {
589 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
590 "P2P: Ignore scan data without P2P Device Info or "
591 "P2P Device Id");
592 p2p_parse_free(&msg);
593 return -1;
594 }
595
80c9582a
JM		 596 if (!is_zero_ether_addr(p2p->peer_filter) &&
597 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
598 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
599 "filter for " MACSTR " due to peer filter",
600 MAC2STR(p2p_dev_addr));
601 return 0;
602 }
603
b22128ef
JM		 604 dev = p2p_create_device(p2p, p2p_dev_addr);
605 if (dev == NULL) {
606 p2p_parse_free(&msg);
607 return -1;
608 }
609 os_get_time(&dev->last_seen);
610 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
611
612 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
613 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
614 if (msg.ssid &&
615 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
616 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
617 != 0)) {
618 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
619 dev->oper_ssid_len = msg.ssid[1];
620 }
621
622 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
623 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
624 int ds_freq;
625 if (*msg.ds_params == 14)
626 ds_freq = 2484;
627 else
628 ds_freq = 2407 + *msg.ds_params * 5;
629 if (freq != ds_freq) {
630 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
631 "P2P: Update Listen frequency based on DS "
632 "Parameter Set IE: %d -> %d MHz",
633 freq, ds_freq);
634 freq = ds_freq;
635 }
636 }
637
638 if (dev->listen_freq && dev->listen_freq != freq) {
639 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
640 "P2P: Update Listen frequency based on scan "
641 "results (" MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 642 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
643 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef
JM		 644 }
645 dev->listen_freq = freq;
f8d0131a
JM		 646 if (msg.group_info)
647 dev->oper_freq = freq;
6402fc43 648 dev->info.level = level;
b22128ef 649
b67d0d9e 650 p2p_copy_wps_info(dev, 0, &msg);
e57ae6e1 651
10c5d2a5 652 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 653 wpabuf_free(dev->info.wps_vendor_ext[i]);
654 dev->info.wps_vendor_ext[i] = NULL;
655 }
656
10c5d2a5 657 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 658 if (msg.wps_vendor_ext[i] == NULL)
659 break;
660 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
661 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
662 if (dev->info.wps_vendor_ext[i] == NULL)
663 break;
664 }
665
b22128ef
JM		 666 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq, msg.group_info,
667 msg.group_info_len);
668
669 p2p_parse_free(&msg);
670
671 if (p2p_pending_sd_req(p2p, dev))
672 dev->flags |= P2P_DEV_SD_SCHEDULE;
673
674 if (dev->flags & P2P_DEV_REPORTED)
675 return 0;
676
677 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
678 "P2P: Peer found with Listen frequency %d MHz", freq);
679 if (dev->flags & P2P_DEV_USER_REJECTED) {
680 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
681 "P2P: Do not report rejected device");
682 return 0;
683 }
8fd7dc1b
JB		 684
685 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
686 !(dev->flags & P2P_DEV_REPORTED_ONCE));
687 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 688
689 return 0;
690}
691
692
693static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
694{
6f2c0607
JMB		 695 int i;
696
5cfda25e
JJ		 697 if (p2p->go_neg_peer == dev) {
698 /*
699 * If GO Negotiation is in progress, report that it has failed.
700 */
701 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 702 p2p->go_neg_peer = NULL;
5cfda25e 703 }
b22128ef
JM		 704 if (p2p->invite_peer == dev)
705 p2p->invite_peer = NULL;
706 if (p2p->sd_peer == dev)
707 p2p->sd_peer = NULL;
708 if (p2p->pending_client_disc_go == dev)
709 p2p->pending_client_disc_go = NULL;
710
f5fc6032
AC		 711 /* dev_lost() device, but only if it was previously dev_found() */
712 if (dev->flags & P2P_DEV_REPORTED_ONCE)
713 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
714 dev->info.p2p_device_addr);
56eeb8f2 715
10c5d2a5 716 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 717 wpabuf_free(dev->info.wps_vendor_ext[i]);
718 dev->info.wps_vendor_ext[i] = NULL;
719 }
720
b22128ef
JM		 721 os_free(dev);
722}
723
724
725static int p2p_get_next_prog_freq(struct p2p_data *p2p)
726{
727 struct p2p_channels *c;
728 struct p2p_reg_class *cla;
729 size_t cl, ch;
730 int found = 0;
731 u8 reg_class;
732 u8 channel;
733 int freq;
734
735 c = &p2p->cfg->channels;
736 for (cl = 0; cl < c->reg_classes; cl++) {
737 cla = &c->reg_class[cl];
738 if (cla->reg_class != p2p->last_prog_scan_class)
739 continue;
740 for (ch = 0; ch < cla->channels; ch++) {
741 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
742 found = 1;
743 break;
744 }
745 }
746 if (found)
747 break;
748 }
749
750 if (!found) {
751 /* Start from beginning */
752 reg_class = c->reg_class[0].reg_class;
753 channel = c->reg_class[0].channel[0];
754 } else {
755 /* Pick the next channel */
756 ch++;
757 if (ch == cla->channels) {
758 cl++;
759 if (cl == c->reg_classes)
760 cl = 0;
761 ch = 0;
762 }
763 reg_class = c->reg_class[cl].reg_class;
764 channel = c->reg_class[cl].channel[ch];
765 }
766
767 freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
768 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
769 "channel: reg_class %u channel %u -> %d MHz",
770 reg_class, channel, freq);
771 p2p->last_prog_scan_class = reg_class;
772 p2p->last_prog_scan_chan = channel;
773
774 if (freq == 2412 || freq == 2437 || freq == 2462)
775 return 0; /* No need to add social channels */
776 return freq;
777}
778
779
780static void p2p_search(struct p2p_data *p2p)
781{
782 int freq = 0;
783 enum p2p_scan_type type;
784
785 if (p2p->drv_in_listen) {
786 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
787 "in Listen state - wait for it to end before "
788 "continuing");
789 return;
790 }
791 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
792
793 if (p2p->go_neg_peer) {
794 /*
795 * Only scan the known listen frequency of the peer
796 * during GO Negotiation start.
797 */
798 freq = p2p->go_neg_peer->listen_freq;
799 if (freq <= 0)
800 freq = p2p->go_neg_peer->oper_freq;
801 type = P2P_SCAN_SPECIFIC;
802 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
803 "for freq %u (GO Neg)", freq);
804 } else if (p2p->invite_peer) {
805 /*
806 * Only scan the known listen frequency of the peer
807 * during Invite start.
808 */
809 freq = p2p->invite_peer->listen_freq;
810 if (freq <= 0)
811 freq = p2p->invite_peer->oper_freq;
812 type = P2P_SCAN_SPECIFIC;
813 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
814 "for freq %u (Invite)", freq);
815 } else if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
816 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
817 type = P2P_SCAN_SOCIAL_PLUS_ONE;
818 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
819 "(+ freq %u)", freq);
820 } else {
821 type = P2P_SCAN_SOCIAL;
822 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
823 }
824
046ef4aa 825 if (p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
6d92fa6e
JM		 826 p2p->num_req_dev_types, p2p->req_dev_types,
827 p2p->find_dev_id) < 0) {
b22128ef
JM		 828 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
829 "P2P: Scan request failed");
830 p2p_continue_find(p2p);
40c03fd4
JM		 831 } else {
832 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
833 p2p->p2p_scan_running = 1;
834 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
835 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
836 p2p, NULL);
b22128ef
JM		 837 }
838}
839
840
841static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
842{
843 struct p2p_data *p2p = eloop_ctx;
844 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
845 p2p_stop_find(p2p);
846}
847
848
849static int p2p_run_after_scan(struct p2p_data *p2p)
850{
851 struct p2p_device *dev;
852 enum p2p_after_scan op;
853
3f9285ff 854 if (p2p->after_scan_tx) {
3f9285ff
JM		 855 /* TODO: schedule p2p_run_after_scan to be called from TX
856 * status callback(?) */
857 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
858 "Action frame at p2p_scan completion");
46eeedac
JM		 859 p2p->cfg->send_action(p2p->cfg->cb_ctx,
860 p2p->after_scan_tx->freq,
861 p2p->after_scan_tx->dst,
862 p2p->after_scan_tx->src,
863 p2p->after_scan_tx->bssid,
864 (u8 *) (p2p->after_scan_tx + 1),
865 p2p->after_scan_tx->len,
866 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 867 os_free(p2p->after_scan_tx);
868 p2p->after_scan_tx = NULL;
869 return 1;
870 }
871
b22128ef
JM		 872 op = p2p->start_after_scan;
873 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
874 switch (op) {
875 case P2P_AFTER_SCAN_NOTHING:
876 break;
877 case P2P_AFTER_SCAN_LISTEN:
878 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
879 "requested Listen state");
880 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
881 p2p->pending_listen_usec / 1000);
882 return 1;
883 case P2P_AFTER_SCAN_CONNECT:
884 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
885 "requested connect with " MACSTR,
886 MAC2STR(p2p->after_scan_peer));
887 dev = p2p_get_device(p2p, p2p->after_scan_peer);
888 if (dev == NULL) {
889 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
890 "known anymore");
891 break;
892 }
893 p2p_connect_send(p2p, dev);
894 return 1;
895 }
896
897 return 0;
898}
899
900
b22128ef
JM		 901static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
902{
903 struct p2p_data *p2p = eloop_ctx;
904 int running;
905 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
906 "(running=%d)", p2p->p2p_scan_running);
907 running = p2p->p2p_scan_running;
908 /* Make sure we recover from missed scan results callback */
909 p2p->p2p_scan_running = 0;
910
911 if (running)
912 p2p_run_after_scan(p2p);
913}
914
915
046ef4aa
JMB		 916static void p2p_free_req_dev_types(struct p2p_data *p2p)
917{
918 p2p->num_req_dev_types = 0;
919 os_free(p2p->req_dev_types);
920 p2p->req_dev_types = NULL;
921}
922
923
b22128ef 924int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 925 enum p2p_discovery_type type,
6d92fa6e
JM		 926 unsigned int num_req_dev_types, const u8 *req_dev_types,
927 const u8 *dev_id)
b22128ef
JM		 928{
929 int res;
930
931 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
932 type);
933 if (p2p->p2p_scan_running) {
934 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
935 "already running");
936 }
046ef4aa
JMB		 937
938 p2p_free_req_dev_types(p2p);
939 if (req_dev_types && num_req_dev_types) {
940 p2p->req_dev_types = os_malloc(num_req_dev_types *
941 WPS_DEV_TYPE_LEN);
942 if (p2p->req_dev_types == NULL)
943 return -1;
944 os_memcpy(p2p->req_dev_types, req_dev_types,
945 num_req_dev_types * WPS_DEV_TYPE_LEN);
946 p2p->num_req_dev_types = num_req_dev_types;
947 }
948
6d92fa6e
JM		 949 if (dev_id) {
950 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
951 p2p->find_dev_id = p2p->find_dev_id_buf;
952 } else
953 p2p->find_dev_id = NULL;
954
b22128ef
JM		 955 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
956 p2p_clear_timeout(p2p);
957 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
958 p2p->find_type = type;
959 p2p_device_clear_reported(p2p);
960 p2p_set_state(p2p, P2P_SEARCH);
961 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 962 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 963 if (timeout)
964 eloop_register_timeout(timeout, 0, p2p_find_timeout,
965 p2p, NULL);
966 switch (type) {
967 case P2P_FIND_START_WITH_FULL:
968 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 969 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
970 p2p->num_req_dev_types,
6d92fa6e 971 p2p->req_dev_types, dev_id);
b22128ef
JM		 972 break;
973 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 974 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
975 p2p->num_req_dev_types,
6d92fa6e 976 p2p->req_dev_types, dev_id);
b22128ef
JM		 977 break;
978 default:
979 return -1;
980 }
981
982 if (res == 0) {
983 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
984 p2p->p2p_scan_running = 1;
985 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
986 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
987 p2p, NULL);
39185dfa
JM		 988 } else if (res == 1) {
989 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
990 "p2p_scan at this point - will try again after "
991 "previous scan completes");
992 res = 0;
993 p2p_set_state(p2p, P2P_SEARCH_WHEN_READY);
994 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 995 } else {
996 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
997 "p2p_scan");
0c96fd6d
JM		 998 p2p_set_state(p2p, P2P_IDLE);
999 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1000 }
1001
1002 return res;
1003}
1004
1005
39185dfa
JM		 1006int p2p_other_scan_completed(struct p2p_data *p2p)
1007{
1008 if (p2p->state != P2P_SEARCH_WHEN_READY)
1009 return 0;
1010 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting pending P2P find "
1011 "now that previous scan was completed");
1012 if (p2p_find(p2p, p2p->last_p2p_find_timeout, p2p->find_type,
6d92fa6e
JM		 1013 p2p->num_req_dev_types, p2p->req_dev_types,
1014 p2p->find_dev_id) < 0)
39185dfa
JM		 1015 return 0;
1016 return 1;
1017}
1018
1019
0b8889d8 1020void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef
JM		 1021{
1022 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
1023 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1024 p2p_clear_timeout(p2p);
8aebb0e4
JJ		 1025 if (p2p->state == P2P_SEARCH)
1026 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, P2P_EVENT_FIND_STOPPED);
b22128ef 1027 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1028 p2p_free_req_dev_types(p2p);
b22128ef
JM		 1029 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1030 p2p->go_neg_peer = NULL;
1031 p2p->sd_peer = NULL;
1032 p2p->invite_peer = NULL;
0b8889d8
JM		 1033 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
1034 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip stop_listen "
1035 "since we are on correct channel for response");
1036 return;
1037 }
54b8f994
JM		 1038 if (p2p->drv_in_listen) {
1039 /*
1040 * The driver may not deliver callback to p2p_listen_end()
1041 * when the operation gets canceled, so clear the internal
1042 * variable that is tracking driver state.
1043 */
1044 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear "
1045 "drv_in_listen (%d)", p2p->drv_in_listen);
1046 p2p->drv_in_listen = 0;
1047 }
b22128ef
JM		 1048 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1049}
1050
1051
0b8889d8
JM		 1052void p2p_stop_find(struct p2p_data *p2p)
1053{
1054 p2p_stop_find_for_freq(p2p, 0);
1055}
1056
1057
7861cb08 1058static int p2p_prepare_channel(struct p2p_data *p2p, unsigned int force_freq)
b22128ef 1059{
b22128ef 1060 if (force_freq) {
1e19f734 1061 u8 op_reg_class, op_channel;
b22128ef 1062 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
1e19f734 1063 &op_reg_class, &op_channel) < 0) {
b22128ef
JM		 1064 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1065 "P2P: Unsupported frequency %u MHz",
1066 force_freq);
1067 return -1;
1068 }
1e19f734
JM		 1069 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
1070 op_channel)) {
1071 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1072 "P2P: Frequency %u MHz (oper_class %u "
1073 "channel %u) not allowed for P2P",
1074 force_freq, op_reg_class, op_channel);
1075 return -1;
1076 }
1077 p2p->op_reg_class = op_reg_class;
1078 p2p->op_channel = op_channel;
b22128ef
JM		 1079 p2p->channels.reg_classes = 1;
1080 p2p->channels.reg_class[0].channels = 1;
1081 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1082 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1083 } else {
7cfc4ac3
AGS		 1084 u8 op_reg_class, op_channel;
1085
1086 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1087 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
1088 p2p_freq_to_channel(p2p->cfg->country,
1089 p2p->best_freq_overall,
1090 &op_reg_class, &op_channel) == 0) {
1091 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1092 "P2P: Select best overall channel as "
1093 "operating channel preference");
1094 p2p->op_reg_class = op_reg_class;
1095 p2p->op_channel = op_channel;
1096 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1097 p2p_supported_freq(p2p, p2p->best_freq_5) &&
1098 p2p_freq_to_channel(p2p->cfg->country,
1099 p2p->best_freq_5,
1100 &op_reg_class, &op_channel) ==
1101 0) {
1102 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1103 "P2P: Select best 5 GHz channel as "
1104 "operating channel preference");
1105 p2p->op_reg_class = op_reg_class;
1106 p2p->op_channel = op_channel;
1107 } else if (!p2p->cfg->cfg_op_channel &&
1108 p2p->best_freq_24 > 0 &&
1109 p2p_supported_freq(p2p, p2p->best_freq_24) &&
1110 p2p_freq_to_channel(p2p->cfg->country,
1111 p2p->best_freq_24,
1112 &op_reg_class, &op_channel) ==
1113 0) {
1114 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1115 "P2P: Select best 2.4 GHz channel as "
1116 "operating channel preference");
1117 p2p->op_reg_class = op_reg_class;
1118 p2p->op_channel = op_channel;
1119 } else {
1120 p2p->op_reg_class = p2p->cfg->op_reg_class;
1121 p2p->op_channel = p2p->cfg->op_channel;
1122 }
1123
b22128ef
JM		 1124 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1125 sizeof(struct p2p_channels));
1126 }
1127 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1128 "P2P: Own preference for operation channel: "
7cfc4ac3 1129 "Operating Class %u Channel %u%s",
b22128ef
JM		 1130 p2p->op_reg_class, p2p->op_channel,
1131 force_freq ? " (forced)" : "");
1132
7861cb08
JM		 1133 return 0;
1134}
1135
1136
acc247b2
JM		 1137static void p2p_set_dev_persistent(struct p2p_device *dev,
1138 int persistent_group)
1139{
1140 switch (persistent_group) {
1141 case 0:
1142 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1143 P2P_DEV_PREFER_PERSISTENT_RECONN);
1144 break;
1145 case 1:
1146 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1147 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1148 break;
1149 case 2:
1150 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1151 P2P_DEV_PREFER_PERSISTENT_RECONN;
1152 break;
1153 }
1154}
1155
1156
7861cb08
JM		 1157int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1158 enum p2p_wps_method wps_method,
1159 int go_intent, const u8 *own_interface_addr,
1160 unsigned int force_freq, int persistent_group)
1161{
1162 struct p2p_device *dev;
1163
1164 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1165 "P2P: Request to start group negotiation - peer=" MACSTR
1166 " GO Intent=%d Intended Interface Address=" MACSTR
1167 " wps_method=%d persistent_group=%d",
1168 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1169 wps_method, persistent_group);
1170
1171 if (p2p_prepare_channel(p2p, force_freq) < 0)
1172 return -1;
1173
4458d915 1174 p2p->ssid_set = 0;
b22128ef
JM		 1175 dev = p2p_get_device(p2p, peer_addr);
1176 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
1177 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1178 "P2P: Cannot connect to unknown P2P Device " MACSTR,
1179 MAC2STR(peer_addr));
1180 return -1;
1181 }
1182
1183 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1184 if (!(dev->info.dev_capab &
1185 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
b22128ef
JM		 1186 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1187 "P2P: Cannot connect to P2P Device " MACSTR
1188 " that is in a group and is not discoverable",
1189 MAC2STR(peer_addr));
1190 return -1;
1191 }
1192 if (dev->oper_freq <= 0) {
1193 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1194 "P2P: Cannot connect to P2P Device " MACSTR
1195 " with incomplete information",
1196 MAC2STR(peer_addr));
1197 return -1;
1198 }
1199
1200 /*
1201 * First, try to connect directly. If the peer does not
1202 * acknowledge frames, assume it is sleeping and use device
1203 * discoverability via the GO at that point.
1204 */
1205 }
1206
1207 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1208 dev->flags &= ~P2P_DEV_USER_REJECTED;
1209 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1210 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
9dac8c3e 1211 dev->connect_reqs = 0;
b22128ef
JM		 1212 dev->go_neg_req_sent = 0;
1213 dev->go_state = UNKNOWN_GO;
acc247b2 1214 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1215 p2p->go_intent = go_intent;
1216 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1217
1218 if (p2p->state != P2P_IDLE)
1219 p2p_stop_find(p2p);
1220
f44ae207
JM		 1221 if (p2p->after_scan_tx) {
1222 /*
1223 * We need to drop the pending frame to avoid issues with the
1224 * new GO Negotiation, e.g., when the pending frame was from a
1225 * previous attempt at starting a GO Negotiation.
1226 */
1227 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
1228 "previous pending Action frame TX that was waiting "
1229 "for p2p_scan completion");
1230 os_free(p2p->after_scan_tx);
1231 p2p->after_scan_tx = NULL;
1232 }
1233
b22128ef
JM		 1234 dev->wps_method = wps_method;
1235 dev->status = P2P_SC_SUCCESS;
d5b20a73
JM		 1236
1237 if (force_freq)
1238 dev->flags |= P2P_DEV_FORCE_FREQ;
1239 else
1240 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1241
b22128ef
JM		 1242 if (p2p->p2p_scan_running) {
1243 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1244 "P2P: p2p_scan running - delay connect send");
1245 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1246 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1247 return 0;
1248 }
1249 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1250
1251 return p2p_connect_send(p2p, dev);
1252}
1253
1254
1255int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1256 enum p2p_wps_method wps_method,
1257 int go_intent, const u8 *own_interface_addr,
1258 unsigned int force_freq, int persistent_group)
1259{
1260 struct p2p_device *dev;
1261
1262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1263 "P2P: Request to authorize group negotiation - peer=" MACSTR
1264 " GO Intent=%d Intended Interface Address=" MACSTR
1265 " wps_method=%d persistent_group=%d",
1266 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1267 wps_method, persistent_group);
1268
7861cb08
JM		 1269 if (p2p_prepare_channel(p2p, force_freq) < 0)
1270 return -1;
b22128ef
JM		 1271
1272 dev = p2p_get_device(p2p, peer_addr);
1273 if (dev == NULL) {
1274 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1275 "P2P: Cannot authorize unknown P2P Device " MACSTR,
1276 MAC2STR(peer_addr));
1277 return -1;
1278 }
1279
1280 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1281 dev->flags &= ~P2P_DEV_USER_REJECTED;
1282 dev->go_neg_req_sent = 0;
1283 dev->go_state = UNKNOWN_GO;
acc247b2 1284 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1285 p2p->go_intent = go_intent;
1286 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1287
1288 dev->wps_method = wps_method;
1289 dev->status = P2P_SC_SUCCESS;
1290
d5b20a73
JM		 1291 if (force_freq)
1292 dev->flags |= P2P_DEV_FORCE_FREQ;
1293 else
1294 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1295
b22128ef
JM		 1296 return 0;
1297}
1298
1299
1300void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1301 struct p2p_device *dev, struct p2p_message *msg)
1302{
1303 os_get_time(&dev->last_seen);
1304
b67d0d9e 1305 p2p_copy_wps_info(dev, 0, msg);
e57ae6e1 1306
b22128ef
JM		 1307 if (msg->listen_channel) {
1308 int freq;
1309 freq = p2p_channel_to_freq((char *) msg->listen_channel,
1310 msg->listen_channel[3],
1311 msg->listen_channel[4]);
1312 if (freq < 0) {
1313 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1314 "P2P: Unknown peer Listen channel: "
1315 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1316 msg->listen_channel[0],
1317 msg->listen_channel[1],
1318 msg->listen_channel[2],
1319 msg->listen_channel[3],
1320 msg->listen_channel[4]);
1321 } else {
1322 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1323 "peer " MACSTR " Listen channel: %u -> %u MHz",
c5db8e51 1324 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1325 dev->listen_freq, freq);
1326 dev->listen_freq = freq;
1327 }
1328 }
b22128ef
JM		 1329
1330 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1331 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1332 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1333 "P2P: Completed device entry based on data from "
1334 "GO Negotiation Request");
1335 } else {
1336 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1337 "P2P: Created device entry based on GO Neg Req: "
1338 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1339 "listen_freq=%d",
c5db8e51
KRK		 1340 MAC2STR(dev->info.p2p_device_addr),
1341 dev->info.dev_capab, dev->info.group_capab,
1342 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1343 }
1344
1345 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1346
1347 if (dev->flags & P2P_DEV_USER_REJECTED) {
1348 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1349 "P2P: Do not report rejected device");
1350 return;
1351 }
1352
8fd7dc1b
JB		 1353 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1354 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1355 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1356}
1357
1358
1359void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1360{
1361 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1362 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1363 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1364 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1365 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1366}
1367
1368
1369int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1370{
1371 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1372 p2p_random(params->passphrase, 8);
1373 return 0;
1374}
1375
1376
1377void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1378{
1379 struct p2p_go_neg_results res;
1380 int go = peer->go_state == LOCAL_GO;
1381 struct p2p_channels intersection;
1382 int freqs;
1383 size_t i, j;
1384
1385 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1386 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
c5db8e51 1387 "GO)", MAC2STR(peer->info.p2p_device_addr),
b22128ef
JM		 1388 go ? "local end" : "peer");
1389
1390 os_memset(&res, 0, sizeof(res));
1391 res.role_go = go;
c5db8e51 1392 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1393 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1394 res.wps_method = peer->wps_method;
acc247b2
JM		 1395 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1396 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1397 res.persistent_group = 2;
1398 else
1399 res.persistent_group = 1;
1400 }
b22128ef
JM		 1401
1402 if (go) {
1403 /* Setup AP mode for WPS provisioning */
1404 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1405 p2p->op_reg_class,
1406 p2p->op_channel);
1407 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1408 res.ssid_len = p2p->ssid_len;
1409 p2p_random(res.passphrase, 8);
e9a7ae41 1410 } else {
b22128ef 1411 res.freq = peer->oper_freq;
e9a7ae41
JM		 1412 if (p2p->ssid_len) {
1413 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1414 res.ssid_len = p2p->ssid_len;
1415 }
1416 }
b22128ef
JM		 1417
1418 p2p_channels_intersect(&p2p->channels, &peer->channels,
1419 &intersection);
1420 freqs = 0;
1421 for (i = 0; i < intersection.reg_classes; i++) {
1422 struct p2p_reg_class *c = &intersection.reg_class[i];
1423 if (freqs + 1 == P2P_MAX_CHANNELS)
1424 break;
1425 for (j = 0; j < c->channels; j++) {
1426 int freq;
1427 if (freqs + 1 == P2P_MAX_CHANNELS)
1428 break;
1429 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1430 c->channel[j]);
1431 if (freq < 0)
1432 continue;
1433 res.freq_list[freqs++] = freq;
1434 }
1435 }
1436
ae3e3421
JM		 1437 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1438
b22128ef 1439 p2p_clear_timeout(p2p);
4458d915 1440 p2p->ssid_set = 0;
b22128ef
JM		 1441 peer->go_neg_req_sent = 0;
1442 peer->wps_method = WPS_NOT_READY;
1443
1444 p2p_set_state(p2p, P2P_PROVISIONING);
1445 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1446}
1447
1448
1449static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1450 const u8 *data, size_t len, int rx_freq)
1451{
1452 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1453 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1454 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1455
1456 if (len < 1)
1457 return;
1458
1459 switch (data[0]) {
1460 case P2P_GO_NEG_REQ:
1461 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1462 break;
1463 case P2P_GO_NEG_RESP:
1464 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1465 break;
1466 case P2P_GO_NEG_CONF:
1467 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1468 break;
1469 case P2P_INVITATION_REQ:
1470 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1471 rx_freq);
1472 break;
1473 case P2P_INVITATION_RESP:
1474 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1475 break;
1476 case P2P_PROV_DISC_REQ:
1477 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1478 break;
1479 case P2P_PROV_DISC_RESP:
1480 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1481 break;
1482 case P2P_DEV_DISC_REQ:
1483 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1484 break;
1485 case P2P_DEV_DISC_RESP:
1486 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1487 break;
1488 default:
1489 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1490 "P2P: Unsupported P2P Public Action frame type %d",
1491 data[0]);
1492 break;
1493 }
1494}
1495
1496
19df9b07
JM		 1497static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1498 const u8 *sa, const u8 *bssid, const u8 *data,
1499 size_t len, int freq)
b22128ef
JM		 1500{
1501 if (len < 1)
1502 return;
1503
1504 switch (data[0]) {
1505 case WLAN_PA_VENDOR_SPECIFIC:
1506 data++;
1507 len--;
1508 if (len < 3)
1509 return;
1510 if (WPA_GET_BE24(data) != OUI_WFA)
1511 return;
1512
1513 data += 3;
1514 len -= 3;
1515 if (len < 1)
1516 return;
1517
1518 if (*data != P2P_OUI_TYPE)
1519 return;
1520
1521 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1522 break;
1523 case WLAN_PA_GAS_INITIAL_REQ:
1524 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1525 break;
1526 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1527 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1528 break;
1529 case WLAN_PA_GAS_COMEBACK_REQ:
1530 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1531 break;
1532 case WLAN_PA_GAS_COMEBACK_RESP:
1533 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1534 break;
1535 }
1536}
1537
1538
1539void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1540 const u8 *bssid, u8 category,
1541 const u8 *data, size_t len, int freq)
1542{
1543 if (category == WLAN_ACTION_PUBLIC) {
1544 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1545 return;
1546 }
1547
1548 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1549 return;
1550
1551 if (len < 4)
1552 return;
1553
1554 if (WPA_GET_BE24(data) != OUI_WFA)
1555 return;
1556 data += 3;
1557 len -= 3;
1558
1559 if (*data != P2P_OUI_TYPE)
1560 return;
1561 data++;
1562 len--;
1563
1564 /* P2P action frame */
1565 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1566 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1567 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1568
1569 if (len < 1)
1570 return;
1571 switch (data[0]) {
1572 case P2P_NOA:
1573 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1574 "P2P: Received P2P Action - Notice of Absence");
1575 /* TODO */
1576 break;
1577 case P2P_PRESENCE_REQ:
1578 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1579 break;
1580 case P2P_PRESENCE_RESP:
1581 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1582 break;
1583 case P2P_GO_DISC_REQ:
1584 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1585 break;
1586 default:
1587 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1588 "P2P: Received P2P Action - unknown type %u", data[0]);
1589 break;
1590 }
1591}
1592
1593
1594static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1595{
1596 struct p2p_data *p2p = eloop_ctx;
1597 if (p2p->go_neg_peer == NULL)
1598 return;
1599 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1600 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1601 p2p_connect_send(p2p, p2p->go_neg_peer);
1602}
1603
1604
1605static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1606{
1607 struct p2p_data *p2p = eloop_ctx;
1608 if (p2p->invite_peer == NULL)
1609 return;
1610 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1611 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1612}
1613
1614
1615static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1616 const u8 *ie, size_t ie_len)
1617{
1618 struct p2p_message msg;
1619 struct p2p_device *dev;
1620
1621 os_memset(&msg, 0, sizeof(msg));
1622 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1623 {
1624 p2p_parse_free(&msg);
1625 return; /* not a P2P probe */
1626 }
1627
1628 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1629 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1630 != 0) {
1631 /* The Probe Request is not part of P2P Device Discovery. It is
1632 * not known whether the source address of the frame is the P2P
1633 * Device Address or P2P Interface Address. Do not add a new
1634 * peer entry based on this frames.
1635 */
1636 p2p_parse_free(&msg);
1637 return;
1638 }
1639
1640 dev = p2p_get_device(p2p, addr);
1641 if (dev) {
1642 if (dev->country[0] == 0 && msg.listen_channel)
1643 os_memcpy(dev->country, msg.listen_channel, 3);
ed908a55 1644 os_get_time(&dev->last_seen);
b22128ef
JM		 1645 p2p_parse_free(&msg);
1646 return; /* already known */
1647 }
1648
1649 dev = p2p_create_device(p2p, addr);
1650 if (dev == NULL) {
1651 p2p_parse_free(&msg);
1652 return;
1653 }
1654
1655 os_get_time(&dev->last_seen);
1656 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1657
b22128ef
JM		 1658 if (msg.listen_channel) {
1659 os_memcpy(dev->country, msg.listen_channel, 3);
1660 dev->listen_freq = p2p_channel_to_freq(dev->country,
1661 msg.listen_channel[3],
1662 msg.listen_channel[4]);
1663 }
1664
b67d0d9e 1665 p2p_copy_wps_info(dev, 1, &msg);
e57ae6e1 1666
b22128ef
JM		 1667 p2p_parse_free(&msg);
1668
1669 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1670 "P2P: Created device entry based on Probe Req: " MACSTR
1671 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1672 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1673 dev->info.group_capab, dev->info.device_name,
1674 dev->listen_freq);
b22128ef
JM		 1675}
1676
1677
1678struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1679 const u8 *addr,
1680 struct p2p_message *msg)
1681{
1682 struct p2p_device *dev;
1683
1684 dev = p2p_get_device(p2p, addr);
1685 if (dev) {
1686 os_get_time(&dev->last_seen);
1687 return dev; /* already known */
1688 }
1689
1690 dev = p2p_create_device(p2p, addr);
1691 if (dev == NULL)
1692 return NULL;
1693
1694 p2p_add_dev_info(p2p, addr, dev, msg);
1695
1696 return dev;
1697}
1698
1699
1700static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1701{
1702 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1703 return 1;
1704 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1705 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1706 WPA_GET_BE16(&req_dev_type[6]) == 0)
1707 return 1; /* Category match with wildcard OUI/sub-category */
1708 return 0;
1709}
1710
1711
1712int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1713 size_t num_req_dev_type)
1714{
1715 size_t i;
1716 for (i = 0; i < num_req_dev_type; i++) {
1717 if (dev_type_match(dev_type, req_dev_type[i]))
1718 return 1;
1719 }
1720 return 0;
1721}
1722
1723
1724/**
1725 * p2p_match_dev_type - Match local device type with requested type
1726 * @p2p: P2P module context from p2p_init()
1727 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1728 * Returns: 1 on match, 0 on mismatch
1729 *
1730 * This function can be used to match the Requested Device Type attribute in
1731 * WPS IE with the local device types for deciding whether to reply to a Probe
1732 * Request frame.
1733 */
1734int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1735{
1736 struct wps_parse_attr attr;
1737 size_t i;
1738
1739 if (wps_parse_msg(wps, &attr))
1740 return 1; /* assume no Requested Device Type attributes */
1741
1742 if (attr.num_req_dev_type == 0)
1743 return 1; /* no Requested Device Type attributes -> match */
1744
1745 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1746 attr.num_req_dev_type))
1747 return 1; /* Own Primary Device Type matches */
1748
1749 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1750 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1751 attr.req_dev_type,
1752 attr.num_req_dev_type))
1753 return 1; /* Own Secondary Device Type matches */
1754
1755 /* No matching device type found */
1756 return 0;
1757}
1758
1759
1760struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1761{
1762 struct wpabuf *buf;
1763 u8 *len;
1764
1765 buf = wpabuf_alloc(1000);
1766 if (buf == NULL)
1767 return NULL;
1768
b22128ef
JM		 1769 p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
1770
1771 /* P2P IE */
1772 len = p2p_buf_add_ie_hdr(buf);
1773 p2p_buf_add_capability(buf, p2p->dev_capab, 0);
1774 if (p2p->ext_listen_interval)
1775 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1776 p2p->ext_listen_interval);
1777 p2p_buf_add_device_info(buf, p2p, NULL);
1778 p2p_buf_update_ie_hdr(buf, len);
1779
1780 return buf;
1781}
1782
1783
e1d52629
JM		 1784static int is_11b(u8 rate)
1785{
1786 return rate == 0x02 || rate == 0x04 || rate == 0x0b || rate == 0x16;
1787}
1788
1789
1790static int supp_rates_11b_only(struct ieee802_11_elems *elems)
1791{
1792 int num_11b = 0, num_others = 0;
1793 int i;
1794
1795 if (elems->supp_rates == NULL && elems->ext_supp_rates == NULL)
1796 return 0;
1797
1798 for (i = 0; elems->supp_rates && i < elems->supp_rates_len; i++) {
1799 if (is_11b(elems->supp_rates[i]))
1800 num_11b++;
1801 else
1802 num_others++;
1803 }
1804
70dbe3b6
JM		 1805 for (i = 0; elems->ext_supp_rates && i < elems->ext_supp_rates_len;
1806 i++) {
1807 if (is_11b(elems->ext_supp_rates[i]))
1808 num_11b++;
1809 else
1810 num_others++;
1811 }
1812
e1d52629
JM		 1813 return num_11b > 0 && num_others == 0;
1814}
1815
1816
04a85e44
JM		 1817static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr,
1818 const u8 *dst, const u8 *bssid, const u8 *ie,
b22128ef
JM		 1819 size_t ie_len)
1820{
1821 struct ieee802_11_elems elems;
1822 struct wpabuf *buf;
1823 struct ieee80211_mgmt *resp;
97c5b3c4 1824 struct p2p_message msg;
b22128ef
JM		 1825 struct wpabuf *ies;
1826
1827 if (!p2p->in_listen || !p2p->drv_in_listen) {
1828 /* not in Listen state - ignore Probe Request */
1829 return;
1830 }
1831
1832 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1833 ParseFailed) {
1834 /* Ignore invalid Probe Request frames */
1835 return;
1836 }
1837
1838 if (elems.p2p == NULL) {
1839 /* not a P2P probe - ignore it */
1840 return;
1841 }
1842
04a85e44
JM		 1843 if (dst && !is_broadcast_ether_addr(dst) &&
1844 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1845 /* Not sent to the broadcast address or our P2P Device Address
1846 */
1847 return;
1848 }
1849
1850 if (bssid && !is_broadcast_ether_addr(bssid)) {
1851 /* Not sent to the Wildcard BSSID */
1852 return;
1853 }
1854
b22128ef
JM		 1855 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1856 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1857 0) {
1858 /* not using P2P Wildcard SSID - ignore */
1859 return;
1860 }
1861
e1d52629
JM		 1862 if (supp_rates_11b_only(&elems)) {
1863 /* Indicates support for 11b rates only */
1864 return;
1865 }
1866
97c5b3c4
JM		 1867 os_memset(&msg, 0, sizeof(msg));
1868 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
1869 /* Could not parse P2P attributes */
1870 return;
1871 }
1872
1873 if (msg.device_id &&
1874 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN != 0)) {
1875 /* Device ID did not match */
1876 p2p_parse_free(&msg);
1877 return;
1878 }
1879
b22128ef 1880 /* Check Requested Device Type match */
97c5b3c4
JM		 1881 if (msg.wps_attributes &&
1882 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 1883 /* No match with Requested Device Type */
97c5b3c4 1884 p2p_parse_free(&msg);
b22128ef
JM		 1885 return;
1886 }
97c5b3c4 1887 p2p_parse_free(&msg);
b22128ef
JM		 1888
1889 if (!p2p->cfg->send_probe_resp)
1890 return; /* Response generated elsewhere */
1891
1892 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1893 "P2P: Reply to P2P Probe Request in Listen state");
1894
1895 /*
1896 * We do not really have a specific BSS that this frame is advertising,
1897 * so build a frame that has some information in valid format. This is
1898 * really only used for discovery purposes, not to learn exact BSS
1899 * parameters.
1900 */
1901 ies = p2p_build_probe_resp_ies(p2p);
1902 if (ies == NULL)
1903 return;
1904
1905 buf = wpabuf_alloc(200 + wpabuf_len(ies));
1906 if (buf == NULL) {
1907 wpabuf_free(ies);
1908 return;
1909 }
1910
1911 resp = NULL;
1912 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
1913
1914 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
1915 (WLAN_FC_STYPE_PROBE_RESP << 4));
1916 os_memcpy(resp->da, addr, ETH_ALEN);
1917 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
1918 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
1919 resp->u.probe_resp.beacon_int = host_to_le16(100);
1920 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1921 resp->u.probe_resp.capab_info =
1922 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
1923 WLAN_CAPABILITY_PRIVACY |
1924 WLAN_CAPABILITY_SHORT_SLOT_TIME);
1925
1926 wpabuf_put_u8(buf, WLAN_EID_SSID);
1927 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
1928 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1929
1930 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
1931 wpabuf_put_u8(buf, 8);
1932 wpabuf_put_u8(buf, (60 / 5) | 0x80);
1933 wpabuf_put_u8(buf, 90 / 5);
1934 wpabuf_put_u8(buf, (120 / 5) | 0x80);
1935 wpabuf_put_u8(buf, 180 / 5);
1936 wpabuf_put_u8(buf, (240 / 5) | 0x80);
1937 wpabuf_put_u8(buf, 360 / 5);
1938 wpabuf_put_u8(buf, 480 / 5);
1939 wpabuf_put_u8(buf, 540 / 5);
1940
1941 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
1942 wpabuf_put_u8(buf, 1);
1943 wpabuf_put_u8(buf, p2p->cfg->channel);
1944
1945 wpabuf_put_buf(buf, ies);
1946 wpabuf_free(ies);
1947
1948 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
1949
1950 wpabuf_free(buf);
1951}
1952
1953
04a85e44
JM		 1954int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1955 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1956{
1957 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
1958
04a85e44 1959 p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 1960
1961 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
1962 p2p->go_neg_peer &&
c5db8e51
KRK		 1963 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
1964 == 0) {
b22128ef
JM		 1965 /* Received a Probe Request from GO Negotiation peer */
1966 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1967 "P2P: Found GO Negotiation peer - try to start GO "
1968 "negotiation from timeout");
1969 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
1970 return 1;
1971 }
1972
1973 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
1974 p2p->invite_peer &&
c5db8e51
KRK		 1975 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
1976 == 0) {
b22128ef
JM		 1977 /* Received a Probe Request from Invite peer */
1978 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1979 "P2P: Found Invite peer - try to start Invite from "
1980 "timeout");
1981 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
1982 return 1;
1983 }
1984
1985 return 0;
1986}
1987
1988
1989static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 1990 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 1991{
1992 struct wpabuf *tmp;
1993 u8 *lpos;
1994 size_t tmplen;
1995 int res;
72044390 1996 u8 group_capab;
b22128ef 1997
4c08c0bd
JM		 1998 if (p2p_ie == NULL)
1999 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2000
2001 /*
2002 * (Re)Association Request - P2P IE
2003 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2004 * P2P Interface attribute (present if concurrent device and
2005 * P2P Management is enabled)
b22128ef
JM		 2006 */
2007 tmp = wpabuf_alloc(200);
2008 if (tmp == NULL)
2009 return -1;
2010
2011 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2012 group_capab = 0;
2013 if (p2p->num_groups > 0) {
2014 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2015 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2016 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2017 p2p->cross_connect)
2018 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2019 }
2020 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2021 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2022 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2023 p2p_buf_add_p2p_interface(tmp, p2p);
2024 p2p_buf_update_ie_hdr(tmp, lpos);
2025
2026 tmplen = wpabuf_len(tmp);
2027 if (tmplen > len)
2028 res = -1;
2029 else {
2030 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2031 res = tmplen;
2032 }
2033 wpabuf_free(tmp);
2034
2035 return res;
2036}
2037
2038
2039int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2040 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2041{
2042 struct wpabuf *tmp;
2043 u8 *lpos;
2044 struct p2p_device *peer;
2045 size_t tmplen;
2046 int res;
2047
2048 if (!p2p_group)
4c08c0bd 2049 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef
JM		 2050
2051 /*
2052 * (Re)Association Request - P2P IE
2053 * P2P Capability attribute (shall be present)
2054 * Extended Listen Timing (may be present)
2055 * P2P Device Info attribute (shall be present)
2056 */
2057 tmp = wpabuf_alloc(200);
2058 if (tmp == NULL)
2059 return -1;
2060
2061 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2062
2063 lpos = p2p_buf_add_ie_hdr(tmp);
2064 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2065 if (p2p->ext_listen_interval)
2066 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2067 p2p->ext_listen_interval);
b22128ef
JM		 2068 p2p_buf_add_device_info(tmp, p2p, peer);
2069 p2p_buf_update_ie_hdr(tmp, lpos);
2070
2071 tmplen = wpabuf_len(tmp);
2072 if (tmplen > len)
2073 res = -1;
2074 else {
2075 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2076 res = tmplen;
2077 }
2078 wpabuf_free(tmp);
2079
2080 return res;
2081}
2082
2083
2084int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2085{
2086 struct wpabuf *p2p_ie;
2087 int ret;
2088
2089 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2090 if (p2p_ie == NULL)
2091 return 0;
2092
2093 ret = p2p_attr_text(p2p_ie, buf, end);
2094 wpabuf_free(p2p_ie);
2095 return ret;
2096}
2097
2098
2099static void p2p_clear_go_neg(struct p2p_data *p2p)
2100{
2101 p2p->go_neg_peer = NULL;
2102 p2p_clear_timeout(p2p);
2103 p2p_set_state(p2p, P2P_IDLE);
2104}
2105
2106
2107void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2108{
2109 if (p2p->go_neg_peer == NULL) {
2110 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2111 "P2P: No pending Group Formation - "
2112 "ignore WPS registration success notification");
2113 return; /* No pending Group Formation */
2114 }
2115
2116 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2117 0) {
2118 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2119 "P2P: Ignore WPS registration success notification "
2120 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
2121 MAC2STR(mac_addr),
2122 MAC2STR(p2p->go_neg_peer->intended_addr));
2123 return; /* Ignore unexpected peer address */
2124 }
2125
2126 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2127 "P2P: Group Formation completed successfully with " MACSTR,
2128 MAC2STR(mac_addr));
2129
2130 p2p_clear_go_neg(p2p);
2131}
2132
2133
2134void p2p_group_formation_failed(struct p2p_data *p2p)
2135{
2136 if (p2p->go_neg_peer == NULL) {
2137 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2138 "P2P: No pending Group Formation - "
2139 "ignore group formation failure notification");
2140 return; /* No pending Group Formation */
2141 }
2142
2143 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2144 "P2P: Group Formation failed with " MACSTR,
2145 MAC2STR(p2p->go_neg_peer->intended_addr));
2146
2147 p2p_clear_go_neg(p2p);
2148}
2149
2150
2151struct p2p_data * p2p_init(const struct p2p_config *cfg)
2152{
2153 struct p2p_data *p2p;
2154
2155 if (cfg->max_peers < 1)
2156 return NULL;
2157
2158 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2159 if (p2p == NULL)
2160 return NULL;
2161 p2p->cfg = (struct p2p_config *) (p2p + 1);
2162 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2163 if (cfg->dev_name)
2164 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2165 if (cfg->manufacturer)
2166 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2167 if (cfg->model_name)
2168 p2p->cfg->model_name = os_strdup(cfg->model_name);
2169 if (cfg->model_number)
2170 p2p->cfg->model_number = os_strdup(cfg->model_number);
2171 if (cfg->serial_number)
2172 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
b22128ef
JM		 2173
2174 p2p->min_disc_int = 1;
2175 p2p->max_disc_int = 3;
2176
2177 os_get_random(&p2p->next_tie_breaker, 1);
2178 p2p->next_tie_breaker &= 0x01;
2179 if (cfg->sd_request)
2180 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2181 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2182 if (cfg->concurrent_operations)
2183 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2184 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2185
2186 dl_list_init(&p2p->devices);
2187
2188 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2189 p2p_expiration_timeout, p2p, NULL);
2190
2191 return p2p;
2192}
2193
2194
2195void p2p_deinit(struct p2p_data *p2p)
2196{
2197 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2198 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2199 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2200 p2p_flush(p2p);
046ef4aa 2201 p2p_free_req_dev_types(p2p);
b22128ef 2202 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2203 os_free(p2p->cfg->manufacturer);
2204 os_free(p2p->cfg->model_name);
2205 os_free(p2p->cfg->model_number);
2206 os_free(p2p->cfg->serial_number);
b22128ef 2207 os_free(p2p->groups);
18708aad 2208 wpabuf_free(p2p->sd_resp);
3f9285ff 2209 os_free(p2p->after_scan_tx);
f95cac27 2210 p2p_remove_wps_vendor_extensions(p2p);
b22128ef
JM		 2211 os_free(p2p);
2212}
2213
2214
2215void p2p_flush(struct p2p_data *p2p)
2216{
2217 struct p2p_device *dev, *prev;
2218 p2p_clear_timeout(p2p);
2219 p2p_set_state(p2p, P2P_IDLE);
2220 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
2221 p2p->go_neg_peer = NULL;
2222 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
2223 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2224 list) {
2225 dl_list_del(&dev->list);
2226 p2p_device_free(p2p, dev);
2227 }
2228 p2p_free_sd_queries(p2p);
f44ae207
JM		 2229 os_free(p2p->after_scan_tx);
2230 p2p->after_scan_tx = NULL;
b22128ef
JM		 2231}
2232
2233
9d562b79
SS		 2234int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2235{
2236 struct p2p_device *dev;
2237
2238 dev = p2p_get_device(p2p, addr);
2239 if (dev == NULL)
2240 return -1;
2241
2242 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Unauthorizing " MACSTR,
2243 MAC2STR(addr));
2244
2245 if (p2p->go_neg_peer == dev)
2246 p2p->go_neg_peer = NULL;
2247
2248 dev->wps_method = WPS_NOT_READY;
2249 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2250 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2251
2252 /* Check if after_scan_tx is for this peer. If so free it */
2253 if (p2p->after_scan_tx &&
2254 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2255 os_free(p2p->after_scan_tx);
2256 p2p->after_scan_tx = NULL;
2257 }
2258
2259 return 0;
2260}
2261
2262
b22128ef
JM		 2263int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2264{
2265 os_free(p2p->cfg->dev_name);
2266 if (dev_name) {
2267 p2p->cfg->dev_name = os_strdup(dev_name);
2268 if (p2p->cfg->dev_name == NULL)
2269 return -1;
2270 } else
2271 p2p->cfg->dev_name = NULL;
2272 return 0;
2273}
2274
2275
b6e01800
JM		 2276int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2277{
2278 os_free(p2p->cfg->manufacturer);
2279 p2p->cfg->manufacturer = NULL;
2280 if (manufacturer) {
2281 p2p->cfg->manufacturer = os_strdup(manufacturer);
2282 if (p2p->cfg->manufacturer == NULL)
2283 return -1;
2284 }
2285
2286 return 0;
2287}
2288
2289
2290int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2291{
2292 os_free(p2p->cfg->model_name);
2293 p2p->cfg->model_name = NULL;
2294 if (model_name) {
2295 p2p->cfg->model_name = os_strdup(model_name);
2296 if (p2p->cfg->model_name == NULL)
2297 return -1;
2298 }
2299
2300 return 0;
2301}
2302
2303
2304int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2305{
2306 os_free(p2p->cfg->model_number);
2307 p2p->cfg->model_number = NULL;
2308 if (model_number) {
2309 p2p->cfg->model_number = os_strdup(model_number);
2310 if (p2p->cfg->model_number == NULL)
2311 return -1;
2312 }
2313
2314 return 0;
2315}
2316
2317
2318int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2319{
2320 os_free(p2p->cfg->serial_number);
2321 p2p->cfg->serial_number = NULL;
2322 if (serial_number) {
2323 p2p->cfg->serial_number = os_strdup(serial_number);
2324 if (p2p->cfg->serial_number == NULL)
2325 return -1;
2326 }
2327
2328 return 0;
2329}
2330
2331
2332void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2333{
2334 p2p->cfg->config_methods = config_methods;
2335}
2336
2337
2338void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2339{
2340 os_memcpy(p2p->cfg->uuid, uuid, 16);
2341}
2342
2343
b22128ef
JM		 2344int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2345{
2346 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2347 return 0;
2348}
2349
2350
2351int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2352 size_t num_dev_types)
2353{
2354 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2355 num_dev_types = P2P_SEC_DEVICE_TYPES;
2356 p2p->cfg->num_sec_dev_types = num_dev_types;
2357 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2358 return 0;
2359}
2360
2361
f95cac27
JMB		 2362void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2363{
2364 int i;
2365
10c5d2a5 2366 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2367 wpabuf_free(p2p->wps_vendor_ext[i]);
2368 p2p->wps_vendor_ext[i] = NULL;
2369 }
2370}
2371
2372
2373int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2374 const struct wpabuf *vendor_ext)
2375{
2376 int i;
2377
2378 if (vendor_ext == NULL)
2379 return -1;
2380
10c5d2a5 2381 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2382 if (p2p->wps_vendor_ext[i] == NULL)
2383 break;
2384 }
10c5d2a5 2385 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2386 return -1;
2387
2388 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2389 if (p2p->wps_vendor_ext[i] == NULL)
2390 return -1;
2391
2392 return 0;
2393}
2394
2395
b22128ef
JM		 2396int p2p_set_country(struct p2p_data *p2p, const char *country)
2397{
2398 os_memcpy(p2p->cfg->country, country, 3);
2399 return 0;
2400}
2401
2402
2403void p2p_continue_find(struct p2p_data *p2p)
2404{
2405 struct p2p_device *dev;
2406 p2p_set_state(p2p, P2P_SEARCH);
2407 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2408 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2409 if (p2p_start_sd(p2p, dev) == 0)
2410 return;
2411 else
2412 break;
10c4edde
JM		 2413 } else if (dev->req_config_methods &&
2414 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
2415 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2416 "pending Provision Discovery Request to "
10c4edde 2417 MACSTR " (config methods 0x%x)",
c5db8e51 2418 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2419 dev->req_config_methods);
1ef2f7ff 2420 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2421 return;
2422 }
2423 }
2424
2425 p2p_listen_in_find(p2p);
2426}
2427
2428
2429static void p2p_sd_cb(struct p2p_data *p2p, int success)
2430{
2431 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2432 "P2P: Service Discovery Query TX callback: success=%d",
2433 success);
2434 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2435
2436 if (!success) {
2437 if (p2p->sd_peer) {
2438 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2439 p2p->sd_peer = NULL;
2440 }
2441 p2p_continue_find(p2p);
2442 return;
2443 }
2444
2445 if (p2p->sd_peer == NULL) {
2446 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2447 "P2P: No SD peer entry known");
2448 p2p_continue_find(p2p);
2449 return;
2450 }
2451
2452 /* Wait for response from the peer */
2453 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2454 p2p_set_timeout(p2p, 0, 200000);
2455}
2456
6b56cc2d
JS		 2457
2458/**
2459 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2460 * @p2p: P2P module context from p2p_init()
2461 */
19df9b07 2462static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2463{
2464 struct p2p_device *dev;
2465
2466 if (p2p->state != P2P_IDLE)
2467 return;
2468
2469 /*
2470 * Retry the prov disc req attempt only for the peer that the user had
2471 * requested for and provided a join has not been initiated on it
2472 * in the meantime.
2473 */
2474
2475 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2476 if (os_memcmp(p2p->pending_pd_devaddr,
2477 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2478 continue;
2479 if (!dev->req_config_methods)
2480 continue;
2481 if (dev->flags & P2P_DEV_PD_FOR_JOIN)
2482 continue;
2483
2484 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2485 "pending Provision Discovery Request to "
6b56cc2d
JS		 2486 MACSTR " (config methods 0x%x)",
2487 MAC2STR(dev->info.p2p_device_addr),
2488 dev->req_config_methods);
1ef2f7ff 2489 p2p_send_prov_disc_req(p2p, dev, 0, 0);
6b56cc2d
JS		 2490 return;
2491 }
2492}
2493
2494
b22128ef
JM		 2495static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2496{
2497 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2498 "P2P: Provision Discovery Request TX callback: success=%d",
2499 success);
6b56cc2d
JS		 2500
2501 /*
2502 * Postpone resetting the pending action state till after we actually
2503 * time out. This allows us to take some action like notifying any
2504 * interested parties about no response to the request.
2505 *
2506 * When the timer (below) goes off we check in IDLE, SEARCH, or
2507 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2508 * requests in, if this was still pending and then raise notification.
2509 */
b22128ef
JM		 2510
2511 if (!success) {
6b56cc2d
JS		 2512 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2513
b22128ef
JM		 2514 if (p2p->state != P2P_IDLE)
2515 p2p_continue_find(p2p);
6b56cc2d
JS		 2516 else if (p2p->user_initiated_pd) {
2517 p2p->pending_action_state = P2P_PENDING_PD;
2518 p2p_set_timeout(p2p, 0, 300000);
2519 }
b22128ef
JM		 2520 return;
2521 }
2522
6b56cc2d
JS		 2523 /*
2524 * This postponing, of resetting pending_action_state, needs to be
2525 * done only for user initiated PD requests and not internal ones.
2526 */
2527 if (p2p->user_initiated_pd)
2528 p2p->pending_action_state = P2P_PENDING_PD;
2529 else
2530 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2531
b22128ef
JM		 2532 /* Wait for response from the peer */
2533 if (p2p->state == P2P_SEARCH)
2534 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2535 p2p_set_timeout(p2p, 0, 200000);
2536}
2537
2538
2539int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
2540 int level, const u8 *ies, size_t ies_len)
2541{
2542 p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
2543
2544 if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
c5db8e51
KRK		 2545 os_memcmp(p2p->go_neg_peer->info.p2p_device_addr, bssid, ETH_ALEN)
2546 == 0) {
b22128ef
JM		 2547 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2548 "P2P: Found GO Negotiation peer - try to start GO "
2549 "negotiation");
2550 p2p_connect_send(p2p, p2p->go_neg_peer);
2551 return 1;
2552 }
2553
2554 return 0;
2555}
2556
2557
2558void p2p_scan_res_handled(struct p2p_data *p2p)
2559{
2560 if (!p2p->p2p_scan_running) {
2561 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
2562 "running, but scan results received");
2563 }
2564 p2p->p2p_scan_running = 0;
2565 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2566
2567 if (p2p_run_after_scan(p2p))
2568 return;
2569 if (p2p->state == P2P_SEARCH)
2570 p2p_continue_find(p2p);
2571}
2572
2573
6d92fa6e 2574void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef
JM		 2575{
2576 u8 *len = p2p_buf_add_ie_hdr(ies);
2577 p2p_buf_add_capability(ies, p2p->dev_capab, 0);
6d92fa6e
JM		 2578 if (dev_id)
2579 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2580 if (p2p->cfg->reg_class && p2p->cfg->channel)
2581 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2582 p2p->cfg->reg_class,
2583 p2p->cfg->channel);
2584 if (p2p->ext_listen_interval)
2585 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2586 p2p->ext_listen_interval);
2587 /* TODO: p2p_buf_add_operating_channel() if GO */
2588 p2p_buf_update_ie_hdr(ies, len);
2589}
2590
2591
206e1f42
JM		 2592size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2593{
2594 return 100;
2595}
2596
2597
b22128ef
JM		 2598int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2599{
2600 return p2p_attr_text(p2p_ie, buf, end);
2601}
2602
2603
2604static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2605{
2606 struct p2p_device *dev = p2p->go_neg_peer;
2607
2608 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2609 "P2P: GO Negotiation Request TX callback: success=%d",
2610 success);
2611
2612 if (dev == NULL) {
2613 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2614 "P2P: No pending GO Negotiation");
2615 return;
2616 }
2617
2618 if (success) {
2619 dev->go_neg_req_sent++;
2620 if (dev->flags & P2P_DEV_USER_REJECTED) {
2621 p2p_set_state(p2p, P2P_IDLE);
2622 return;
2623 }
2624 }
2625
2626 if (!success &&
c5db8e51 2627 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef
JM		 2628 !is_zero_ether_addr(dev->member_in_go_dev)) {
2629 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2630 "P2P: Peer " MACSTR " did not acknowledge request - "
2631 "try to use device discoverability through its GO",
c5db8e51 2632 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2633 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2634 p2p_send_dev_disc_req(p2p, dev);
2635 return;
2636 }
2637
2638 /*
2639 * Use P2P find, if needed, to find the other device from its listen
2640 * channel.
2641 */
2642 p2p_set_state(p2p, P2P_CONNECT);
2643 p2p_set_timeout(p2p, 0, 100000);
2644}
2645
2646
2647static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2648{
2649 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2650 "P2P: GO Negotiation Response TX callback: success=%d",
2651 success);
2652 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2653 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2654 "P2P: Ignore TX callback event - GO Negotiation is "
2655 "not running anymore");
2656 return;
2657 }
2658 p2p_set_state(p2p, P2P_CONNECT);
2659 p2p_set_timeout(p2p, 0, 100000);
2660}
2661
2662
2663static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2664{
2665 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2666 "P2P: GO Negotiation Response (failure) TX callback: "
2667 "success=%d", success);
fbe70272
JM		 2668 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2669 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2670 p2p->go_neg_peer->status);
2671 }
b22128ef
JM		 2672}
2673
2674
93b7ddd0
JM		 2675static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2676 enum p2p_send_action_result result)
b22128ef
JM		 2677{
2678 struct p2p_device *dev;
2679
2680 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
93b7ddd0
JM		 2681 "P2P: GO Negotiation Confirm TX callback: result=%d",
2682 result);
b22128ef 2683 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2684 if (result == P2P_SEND_ACTION_FAILED) {
2685 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2686 return;
2687 }
2688 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2689 /*
2690 * It looks like the TX status for GO Negotiation Confirm is
2691 * often showing failure even when the peer has actually
2692 * received the frame. Since the peer may change channels
2693 * immediately after having received the frame, we may not see
2694 * an Ack for retries, so just dropping a single frame may
2695 * trigger this. To allow the group formation to succeed if the
2696 * peer did indeed receive the frame, continue regardless of
2697 * the TX status.
2698 */
2699 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2700 "P2P: Assume GO Negotiation Confirm TX was actually "
2701 "received by the peer even though Ack was not "
2702 "reported");
2703 }
2704
2705 dev = p2p->go_neg_peer;
2706 if (dev == NULL)
2707 return;
2708
2709 p2p_go_complete(p2p, dev);
2710}
2711
2712
2713void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2714 const u8 *src, const u8 *bssid,
2715 enum p2p_send_action_result result)
b22128ef
JM		 2716{
2717 enum p2p_pending_action_state state;
93b7ddd0 2718 int success;
b22128ef
JM		 2719
2720 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2721 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2722 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2723 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2724 MAC2STR(bssid), result);
2725 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2726 state = p2p->pending_action_state;
2727 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2728 switch (state) {
2729 case P2P_NO_PENDING_ACTION:
2730 break;
2731 case P2P_PENDING_GO_NEG_REQUEST:
2732 p2p_go_neg_req_cb(p2p, success);
2733 break;
2734 case P2P_PENDING_GO_NEG_RESPONSE:
2735 p2p_go_neg_resp_cb(p2p, success);
2736 break;
2737 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2738 p2p_go_neg_resp_failure_cb(p2p, success);
2739 break;
2740 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2741 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 2742 break;
2743 case P2P_PENDING_SD:
2744 p2p_sd_cb(p2p, success);
2745 break;
2746 case P2P_PENDING_PD:
2747 p2p_prov_disc_cb(p2p, success);
2748 break;
2749 case P2P_PENDING_INVITATION_REQUEST:
2750 p2p_invitation_req_cb(p2p, success);
2751 break;
2752 case P2P_PENDING_INVITATION_RESPONSE:
2753 p2p_invitation_resp_cb(p2p, success);
2754 break;
2755 case P2P_PENDING_DEV_DISC_REQUEST:
2756 p2p_dev_disc_req_cb(p2p, success);
2757 break;
2758 case P2P_PENDING_DEV_DISC_RESPONSE:
2759 p2p_dev_disc_resp_cb(p2p, success);
2760 break;
2761 case P2P_PENDING_GO_DISC_REQ:
2762 p2p_go_disc_req_cb(p2p, success);
2763 break;
2764 }
2765}
2766
2767
2768void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2769 unsigned int duration)
2770{
2771 if (freq == p2p->pending_client_disc_freq) {
2772 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2773 "P2P: Client discoverability remain-awake completed");
2774 p2p->pending_client_disc_freq = 0;
2775 return;
2776 }
2777
2778 if (freq != p2p->pending_listen_freq) {
2779 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2780 "P2P: Unexpected listen callback for freq=%u "
2781 "duration=%u (pending_listen_freq=%u)",
2782 freq, duration, p2p->pending_listen_freq);
2783 return;
2784 }
2785
2786 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2787 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2788 "callback",
2789 p2p->pending_listen_sec, p2p->pending_listen_usec,
2790 p2p->pending_listen_freq);
2791 p2p->in_listen = 1;
0b8889d8 2792 p2p->drv_in_listen = freq;
b22128ef
JM		 2793 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
2794 /*
2795 * Add 20 msec extra wait to avoid race condition with driver
2796 * remain-on-channel end event, i.e., give driver more time to
2797 * complete the operation before our timeout expires.
2798 */
2799 p2p_set_timeout(p2p, p2p->pending_listen_sec,
2800 p2p->pending_listen_usec + 20000);
2801 }
2802
2803 p2p->pending_listen_freq = 0;
2804}
2805
2806
2807int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
2808{
2809 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
2810 "state (freq=%u)", freq);
2811 p2p->drv_in_listen = 0;
2812 if (p2p->in_listen)
2813 return 0; /* Internal timeout will trigger the next step */
2814
2815 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c
JM		 2816 if (p2p->go_neg_peer->connect_reqs >= 120) {
2817 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2818 "P2P: Timeout on sending GO Negotiation "
2819 "Request without getting response");
2820 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2821 return 0;
2822 }
2823
b22128ef
JM		 2824 p2p_set_state(p2p, P2P_CONNECT);
2825 p2p_connect_send(p2p, p2p->go_neg_peer);
2826 return 1;
2827 } else if (p2p->state == P2P_SEARCH) {
2828 p2p_search(p2p);
2829 return 1;
2830 }
2831
2832 return 0;
2833}
2834
2835
2836static void p2p_timeout_connect(struct p2p_data *p2p)
2837{
2838 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2839 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
2840 p2p_listen_in_find(p2p);
2841}
2842
2843
2844static void p2p_timeout_connect_listen(struct p2p_data *p2p)
2845{
2846 if (p2p->go_neg_peer) {
2847 if (p2p->drv_in_listen) {
2848 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
2849 "still in Listen state; wait for it to "
2850 "complete");
2851 return;
2852 }
9dac8c3e
FM		 2853
2854 if (p2p->go_neg_peer->connect_reqs >= 120) {
2855 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2856 "P2P: Timeout on sending GO Negotiation "
2857 "Request without getting response");
2858 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2859 return;
2860 }
2861
b22128ef
JM		 2862 p2p_set_state(p2p, P2P_CONNECT);
2863 p2p_connect_send(p2p, p2p->go_neg_peer);
2864 } else
2865 p2p_set_state(p2p, P2P_IDLE);
2866}
2867
2868
2869static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
2870{
2871 /*
2872 * TODO: could remain constantly in Listen state for some time if there
2873 * are no other concurrent uses for the radio. For now, go to listen
2874 * state once per second to give other uses a chance to use the radio.
2875 */
2876 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
d58ed4e3 2877 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 2878}
2879
2880
2881static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
2882{
2883 struct p2p_device *dev = p2p->go_neg_peer;
2884
2885 if (dev == NULL) {
2886 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2887 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2888 return;
2889 }
2890
2891 dev->wait_count++;
2892 if (dev->wait_count >= 120) {
2893 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2894 "P2P: Timeout on waiting peer to become ready for GO "
2895 "Negotiation");
2896 p2p_go_neg_failed(p2p, dev, -1);
2897 return;
2898 }
2899
2900 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2901 "P2P: Go to Listen state while waiting for the peer to become "
2902 "ready for GO Negotiation");
2903 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
2904 p2p_listen_in_find(p2p);
2905}
2906
2907
2908static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
2909{
2910 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2911 "P2P: Service Discovery Query timeout");
2912 if (p2p->sd_peer) {
2913 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2914 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2915 p2p->sd_peer = NULL;
2916 }
2917 p2p_continue_find(p2p);
2918}
2919
2920
2921static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
2922{
2923 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2924 "P2P: Provision Discovery Request timeout");
2925 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2926 p2p_continue_find(p2p);
2927}
2928
2929
6b56cc2d
JS		 2930static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
2931{
2932 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2933
2934 /*
2935 * For user initiated PD requests that we have not gotten any responses
2936 * for while in IDLE state, we retry them a couple of times before
2937 * giving up.
2938 */
2939 if (!p2p->user_initiated_pd)
2940 return;
2941
2942 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2943 "P2P: User initiated Provision Discovery Request timeout");
2944
2945 if (p2p->pd_retries) {
2946 p2p->pd_retries--;
2947 p2p_retry_pd(p2p);
2948 } else {
349b213c
JS		 2949 if (p2p->cfg->prov_disc_fail)
2950 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
2951 p2p->pending_pd_devaddr,
2952 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 2953 p2p_reset_pending_pd(p2p);
2954 }
2955}
2956
2957
b22128ef
JM		 2958static void p2p_timeout_invite(struct p2p_data *p2p)
2959{
2960 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2961 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 2962 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
2963 /*
2964 * Better remain on operating channel instead of listen channel
2965 * when running a group.
2966 */
2967 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
2968 "active GO role - wait on operating channel");
2969 p2p_set_timeout(p2p, 0, 100000);
2970 return;
2971 }
b22128ef
JM		 2972 p2p_listen_in_find(p2p);
2973}
2974
2975
2976static void p2p_timeout_invite_listen(struct p2p_data *p2p)
2977{
2978 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
2979 p2p_set_state(p2p, P2P_INVITE);
2980 p2p_invite_send(p2p, p2p->invite_peer,
2981 p2p->invite_go_dev_addr);
2982 } else {
2983 if (p2p->invite_peer) {
2984 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2985 "P2P: Invitation Request retry limit reached");
2986 if (p2p->cfg->invitation_result)
2987 p2p->cfg->invitation_result(
2988 p2p->cfg->cb_ctx, -1, NULL);
2989 }
2990 p2p_set_state(p2p, P2P_IDLE);
2991 }
2992}
2993
2994
2995static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
2996{
2997 struct p2p_data *p2p = eloop_ctx;
2998
2999 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
3000 p2p_state_txt(p2p->state));
3001
3002 p2p->in_listen = 0;
3003
3004 switch (p2p->state) {
3005 case P2P_IDLE:
6b56cc2d
JS		 3006 /* Check if we timed out waiting for PD req */
3007 if (p2p->pending_action_state == P2P_PENDING_PD)
3008 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3009 break;
3010 case P2P_SEARCH:
6b56cc2d
JS		 3011 /* Check if we timed out waiting for PD req */
3012 if (p2p->pending_action_state == P2P_PENDING_PD)
3013 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3014 p2p_search(p2p);
3015 break;
3016 case P2P_CONNECT:
3017 p2p_timeout_connect(p2p);
3018 break;
3019 case P2P_CONNECT_LISTEN:
3020 p2p_timeout_connect_listen(p2p);
3021 break;
3022 case P2P_GO_NEG:
3023 break;
3024 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3025 /* Check if we timed out waiting for PD req */
3026 if (p2p->pending_action_state == P2P_PENDING_PD)
3027 p2p_timeout_prov_disc_req(p2p);
3028
b22128ef
JM		 3029 if (p2p->ext_listen_only) {
3030 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3031 "P2P: Extended Listen Timing - Listen State "
3032 "completed");
3033 p2p->ext_listen_only = 0;
3034 p2p_set_state(p2p, P2P_IDLE);
3035 }
3036 break;
3037 case P2P_WAIT_PEER_CONNECT:
3038 p2p_timeout_wait_peer_connect(p2p);
3039 break;
3040 case P2P_WAIT_PEER_IDLE:
3041 p2p_timeout_wait_peer_idle(p2p);
3042 break;
3043 case P2P_SD_DURING_FIND:
3044 p2p_timeout_sd_during_find(p2p);
3045 break;
3046 case P2P_PROVISIONING:
3047 break;
3048 case P2P_PD_DURING_FIND:
3049 p2p_timeout_prov_disc_during_find(p2p);
3050 break;
3051 case P2P_INVITE:
3052 p2p_timeout_invite(p2p);
3053 break;
3054 case P2P_INVITE_LISTEN:
3055 p2p_timeout_invite_listen(p2p);
3056 break;
39185dfa
JM		 3057 case P2P_SEARCH_WHEN_READY:
3058 break;
b22128ef
JM		 3059 }
3060}
3061
3062
3063int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3064{
3065 struct p2p_device *dev;
3066
3067 dev = p2p_get_device(p2p, peer_addr);
3068 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
3069 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
3070 if (dev == NULL) {
3071 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
3072 " unknown", MAC2STR(peer_addr));
3073 return -1;
3074 }
3075 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3076 dev->flags |= P2P_DEV_USER_REJECTED;
3077 return 0;
3078}
3079
3080
e5a359cf 3081const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3082{
3083 switch (method) {
3084 case WPS_NOT_READY:
3085 return "not-ready";
b22128ef
JM		 3086 case WPS_PIN_DISPLAY:
3087 return "Display";
3088 case WPS_PIN_KEYPAD:
3089 return "Keypad";
3090 case WPS_PBC:
3091 return "PBC";
3092 }
3093
3094 return "??";
3095}
3096
3097
3098static const char * p2p_go_state_text(enum p2p_go_state go_state)
3099{
3100 switch (go_state) {
3101 case UNKNOWN_GO:
3102 return "unknown";
3103 case LOCAL_GO:
3104 return "local";
3105 case REMOTE_GO:
3106 return "remote";
3107 }
3108
3109 return "??";
3110}
3111
3112
b3ffc80b
JM		 3113const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3114 const u8 *addr, int next)
b22128ef
JM		 3115{
3116 struct p2p_device *dev;
b22128ef
JM		 3117
3118 if (addr)
3119 dev = p2p_get_device(p2p, addr);
3120 else
3121 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3122
3123 if (dev && next) {
3124 dev = dl_list_first(&dev->list, struct p2p_device, list);
3125 if (&dev->list == &p2p->devices)
3126 dev = NULL;
3127 }
3128
3129 if (dev == NULL)
b3ffc80b
JM		 3130 return NULL;
3131
3132 return &dev->info;
3133}
3134
3135
3136int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3137 char *buf, size_t buflen)
3138{
3139 struct p2p_device *dev;
3140 int res;
3141 char *pos, *end;
3142 struct os_time now;
3143
3144 if (info == NULL)
b22128ef
JM		 3145 return -1;
3146
b3ffc80b
JM		 3147 dev = (struct p2p_device *) (((u8 *) info) -
3148 offsetof(struct p2p_device, info));
3149
b22128ef
JM		 3150 pos = buf;
3151 end = buf + buflen;
3152
b22128ef
JM		 3153 os_get_time(&now);
3154 res = os_snprintf(pos, end - pos,
3155 "age=%d\n"
3156 "listen_freq=%d\n"
b22128ef
JM		 3157 "wps_method=%s\n"
3158 "interface_addr=" MACSTR "\n"
3159 "member_in_go_dev=" MACSTR "\n"
3160 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3161 "go_neg_req_sent=%d\n"
3162 "go_state=%s\n"
3163 "dialog_token=%u\n"
3164 "intended_addr=" MACSTR "\n"
3165 "country=%c%c\n"
3166 "oper_freq=%d\n"
3167 "req_config_methods=0x%x\n"
10c4edde 3168 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3169 "status=%d\n"
3170 "wait_count=%u\n"
3171 "invitation_reqs=%u\n",
3172 (int) (now.sec - dev->last_seen.sec),
3173 dev->listen_freq,
b22128ef
JM		 3174 p2p_wps_method_text(dev->wps_method),
3175 MAC2STR(dev->interface_addr),
3176 MAC2STR(dev->member_in_go_dev),
3177 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3178 dev->go_neg_req_sent,
3179 p2p_go_state_text(dev->go_state),
3180 dev->dialog_token,
3181 MAC2STR(dev->intended_addr),
3182 dev->country[0] ? dev->country[0] : '_',
3183 dev->country[1] ? dev->country[1] : '_',
3184 dev->oper_freq,
3185 dev->req_config_methods,
3186 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3187 "[PROBE_REQ_ONLY]" : "",
3188 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3189 dev->flags & P2P_DEV_NOT_YET_READY ?
3190 "[NOT_YET_READY]" : "",
3191 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3192 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3193 "",
3194 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3195 "[PD_PEER_DISPLAY]" : "",
3196 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3197 "[PD_PEER_KEYPAD]" : "",
3198 dev->flags & P2P_DEV_USER_REJECTED ?
3199 "[USER_REJECTED]" : "",
3200 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3201 "[PEER_WAITING_RESPONSE]" : "",
3202 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3203 "[PREFER_PERSISTENT_GROUP]" : "",
3204 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3205 "[WAIT_GO_NEG_RESPONSE]" : "",
3206 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3207 "[WAIT_GO_NEG_CONFIRM]" : "",
3208 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3209 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3210 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3211 "[FORCE_FREQ]" : "",
3212 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3213 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3214 dev->status,
3215 dev->wait_count,
3216 dev->invitation_reqs);
3217 if (res < 0 || res >= end - pos)
3218 return pos - buf;
3219 pos += res;
3220
3221 if (dev->ext_listen_period) {
3222 res = os_snprintf(pos, end - pos,
3223 "ext_listen_period=%u\n"
3224 "ext_listen_interval=%u\n",
3225 dev->ext_listen_period,
3226 dev->ext_listen_interval);
3227 if (res < 0 || res >= end - pos)
3228 return pos - buf;
3229 pos += res;
3230 }
3231
3232 if (dev->oper_ssid_len) {
3233 res = os_snprintf(pos, end - pos,
3234 "oper_ssid=%s\n",
3235 wpa_ssid_txt(dev->oper_ssid,
3236 dev->oper_ssid_len));
3237 if (res < 0 || res >= end - pos)
3238 return pos - buf;
3239 pos += res;
3240 }
3241
3242 return pos - buf;
3243}
3244
3245
b3bcc0f5
JM		 3246int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3247{
3248 return p2p_get_device(p2p, addr) != NULL;
3249}
3250
3251
b22128ef
JM		 3252void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3253{
3254 if (enabled) {
3255 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3256 "discoverability enabled");
3257 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3258 } else {
3259 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3260 "discoverability disabled");
3261 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3262 }
3263}
3264
3265
3266static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3267 u32 duration2, u32 interval2)
3268{
3269 struct wpabuf *req;
3270 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3271 u8 *len;
3272
3273 req = wpabuf_alloc(100);
3274 if (req == NULL)
3275 return NULL;
3276
3277 if (duration1 || interval1) {
3278 os_memset(&desc1, 0, sizeof(desc1));
3279 desc1.count_type = 1;
3280 desc1.duration = duration1;
3281 desc1.interval = interval1;
3282 ptr1 = &desc1;
3283
3284 if (duration2 || interval2) {
3285 os_memset(&desc2, 0, sizeof(desc2));
3286 desc2.count_type = 2;
3287 desc2.duration = duration2;
3288 desc2.interval = interval2;
3289 ptr2 = &desc2;
3290 }
3291 }
3292
3293 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3294 len = p2p_buf_add_ie_hdr(req);
3295 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3296 p2p_buf_update_ie_hdr(req, len);
3297
3298 return req;
3299}
3300
3301
3302int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3303 const u8 *own_interface_addr, unsigned int freq,
3304 u32 duration1, u32 interval1, u32 duration2,
3305 u32 interval2)
3306{
3307 struct wpabuf *req;
3308
3309 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
3310 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
3311 "int1=%u dur2=%u int2=%u",
3312 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3313 freq, duration1, interval1, duration2, interval2);
3314
3315 req = p2p_build_presence_req(duration1, interval1, duration2,
3316 interval2);
3317 if (req == NULL)
3318 return -1;
3319
3320 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3321 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3322 go_interface_addr,
3323 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
b22128ef
JM		 3324 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3325 "P2P: Failed to send Action frame");
3326 }
3327 wpabuf_free(req);
3328
3329 return 0;
3330}
3331
3332
3333static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3334 size_t noa_len, u8 dialog_token)
3335{
3336 struct wpabuf *resp;
3337 u8 *len;
3338
3339 resp = wpabuf_alloc(100 + noa_len);
3340 if (resp == NULL)
3341 return NULL;
3342
3343 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3344 len = p2p_buf_add_ie_hdr(resp);
3345 p2p_buf_add_status(resp, status);
3346 if (noa) {
3347 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3348 wpabuf_put_le16(resp, noa_len);
3349 wpabuf_put_data(resp, noa, noa_len);
3350 } else
3351 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3352 p2p_buf_update_ie_hdr(resp, len);
3353
3354 return resp;
3355}
3356
3357
3358static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3359 const u8 *sa, const u8 *data, size_t len,
3360 int rx_freq)
3361{
3362 struct p2p_message msg;
3363 u8 status;
3364 struct wpabuf *resp;
3365 size_t g;
3366 struct p2p_group *group = NULL;
3367 int parsed = 0;
3368 u8 noa[50];
3369 int noa_len;
3370
3371 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3372 "P2P: Received P2P Action - P2P Presence Request");
3373
3374 for (g = 0; g < p2p->num_groups; g++) {
3375 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3376 ETH_ALEN) == 0) {
3377 group = p2p->groups[g];
3378 break;
3379 }
3380 }
3381 if (group == NULL) {
3382 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3383 "P2P: Ignore P2P Presence Request for unknown group "
3384 MACSTR, MAC2STR(da));
3385 return;
3386 }
3387
3388 if (p2p_parse(data, len, &msg) < 0) {
3389 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3390 "P2P: Failed to parse P2P Presence Request");
3391 status = P2P_SC_FAIL_INVALID_PARAMS;
3392 goto fail;
3393 }
3394 parsed = 1;
3395
3396 if (msg.noa == NULL) {
3397 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3398 "P2P: No NoA attribute in P2P Presence Request");
3399 status = P2P_SC_FAIL_INVALID_PARAMS;
3400 goto fail;
3401 }
3402
3403 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3404
3405fail:
3406 if (p2p->cfg->get_noa)
3407 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3408 sizeof(noa));
3409 else
3410 noa_len = -1;
3411 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3412 noa_len > 0 ? noa_len : 0,
3413 msg.dialog_token);
3414 if (parsed)
3415 p2p_parse_free(&msg);
3416 if (resp == NULL)
3417 return;
3418
3419 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3420 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3421 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
b22128ef
JM		 3422 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3423 "P2P: Failed to send Action frame");
3424 }
3425 wpabuf_free(resp);
3426}
3427
3428
3429static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3430 const u8 *sa, const u8 *data, size_t len)
3431{
3432 struct p2p_message msg;
3433
3434 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3435 "P2P: Received P2P Action - P2P Presence Response");
3436
3437 if (p2p_parse(data, len, &msg) < 0) {
3438 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3439 "P2P: Failed to parse P2P Presence Response");
3440 return;
3441 }
3442
3443 if (msg.status == NULL || msg.noa == NULL) {
3444 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3445 "P2P: No Status or NoA attribute in P2P Presence "
3446 "Response");
3447 p2p_parse_free(&msg);
3448 return;
3449 }
3450
3451 if (*msg.status) {
3452 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3453 "P2P: P2P Presence Request was rejected: status %u",
3454 *msg.status);
3455 p2p_parse_free(&msg);
3456 return;
3457 }
3458
3459 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3460 "P2P: P2P Presence Request was accepted");
3461 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3462 msg.noa, msg.noa_len);
3463 /* TODO: process NoA */
3464 p2p_parse_free(&msg);
3465}
3466
3467
3468static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3469{
3470 struct p2p_data *p2p = eloop_ctx;
3471
3472 if (p2p->ext_listen_interval) {
3473 /* Schedule next extended listen timeout */
3474 eloop_register_timeout(p2p->ext_listen_interval_sec,
3475 p2p->ext_listen_interval_usec,
3476 p2p_ext_listen_timeout, p2p, NULL);
3477 }
3478
f7a69057
JM		 3479 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3480 /*
3481 * This should not really happen, but it looks like the Listen
3482 * command may fail is something else (e.g., a scan) was
3483 * running at an inconvenient time. As a workaround, allow new
3484 * Extended Listen operation to be started.
3485 */
3486 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
3487 "Extended Listen operation had not been completed - "
3488 "try again");
3489 p2p->ext_listen_only = 0;
3490 p2p_set_state(p2p, P2P_IDLE);
3491 }
3492
b22128ef
JM		 3493 if (p2p->state != P2P_IDLE) {
3494 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
3495 "Listen timeout in active state (%s)",
3496 p2p_state_txt(p2p->state));
3497 return;
3498 }
3499
3500 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
3501 p2p->ext_listen_only = 1;
3502 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
3503 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
3504 "Listen state for Extended Listen Timing");
3505 p2p->ext_listen_only = 0;
3506 }
3507}
3508
3509
3510int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3511 unsigned int interval)
3512{
3513 if (period > 65535 || interval > 65535 || period > interval ||
3514 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
3515 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3516 "P2P: Invalid Extended Listen Timing request: "
3517 "period=%u interval=%u", period, interval);
3518 return -1;
3519 }
3520
3521 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3522
3523 if (interval == 0) {
3524 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3525 "P2P: Disabling Extended Listen Timing");
3526 p2p->ext_listen_period = 0;
3527 p2p->ext_listen_interval = 0;
3528 return 0;
3529 }
3530
3531 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3532 "P2P: Enabling Extended Listen Timing: period %u msec, "
3533 "interval %u msec", period, interval);
3534 p2p->ext_listen_period = period;
3535 p2p->ext_listen_interval = interval;
3536 p2p->ext_listen_interval_sec = interval / 1000;
3537 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3538
3539 eloop_register_timeout(p2p->ext_listen_interval_sec,
3540 p2p->ext_listen_interval_usec,
3541 p2p_ext_listen_timeout, p2p, NULL);
3542
3543 return 0;
3544}
3545
3546
3547void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3548 const u8 *ie, size_t ie_len)
3549{
3550 struct p2p_message msg;
3551
3552 if (bssid == NULL || ie == NULL)
3553 return;
3554
3555 os_memset(&msg, 0, sizeof(msg));
3556 if (p2p_parse_ies(ie, ie_len, &msg))
3557 return;
3558 if (msg.minor_reason_code == NULL)
3559 return;
3560
3561 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3562 "P2P: Deauthentication notification BSSID " MACSTR
3563 " reason_code=%u minor_reason_code=%u",
3564 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3565
3566 p2p_parse_free(&msg);
3567}
3568
3569
3570void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3571 const u8 *ie, size_t ie_len)
3572{
3573 struct p2p_message msg;
3574
3575 if (bssid == NULL || ie == NULL)
3576 return;
3577
3578 os_memset(&msg, 0, sizeof(msg));
3579 if (p2p_parse_ies(ie, ie_len, &msg))
3580 return;
3581 if (msg.minor_reason_code == NULL)
3582 return;
3583
3584 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3585 "P2P: Disassociation notification BSSID " MACSTR
3586 " reason_code=%u minor_reason_code=%u",
3587 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3588
3589 p2p_parse_free(&msg);
3590}
3591
3592
3593void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3594{
3595 if (enabled) {
3596 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3597 "Device operations enabled");
3598 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3599 } else {
3600 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3601 "Device operations disabled");
3602 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3603 }
3604}
3605
3606
3607int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3608{
3609 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
3610 return -1;
3611
3612 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
3613 "reg_class %u channel %u", reg_class, channel);
3614 p2p->cfg->reg_class = reg_class;
3615 p2p->cfg->channel = channel;
3616
3617 return 0;
3618}
3619
3620
3621int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3622{
3623 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
3624 if (postfix == NULL) {
3625 p2p->cfg->ssid_postfix_len = 0;
3626 return 0;
3627 }
3628 if (len > sizeof(p2p->cfg->ssid_postfix))
3629 return -1;
3630 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3631 p2p->cfg->ssid_postfix_len = len;
3632 return 0;
3633}
3634
3635
2463ba70
JS		 3636int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3637 int cfg_op_channel)
3638{
3639 if (p2p_channel_to_freq(p2p->cfg->country, op_reg_class, op_channel)
3640 < 0)
3641 return -1;
3642
3643 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, "P2P: Set Operating channel: "
3644 "reg_class %u channel %u", op_reg_class, op_channel);
3645 p2p->cfg->op_reg_class = op_reg_class;
3646 p2p->cfg->op_channel = op_channel;
3647 p2p->cfg->cfg_op_channel = cfg_op_channel;
3648 return 0;
3649}
3650
3651
b22128ef
JM		 3652int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3653 u8 *iface_addr)
3654{
3655 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3656 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3657 return -1;
3658 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3659 return 0;
3660}
80c9582a
JM		 3661
3662
4147a2cc
JM		 3663int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
3664 u8 *dev_addr)
3665{
3666 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3667 if (dev == NULL)
3668 return -1;
c5db8e51 3669 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 3670 return 0;
3671}
3672
3673
80c9582a
JM		 3674void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3675{
3676 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3677 if (is_zero_ether_addr(p2p->peer_filter))
3678 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3679 "filter");
3680 else
3681 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3682 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3683}
72044390
JM		 3684
3685
3686void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3687{
3688 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
3689 enabled ? "enabled" : "disabled");
3690 if (p2p->cross_connect == enabled)
3691 return;
3692 p2p->cross_connect = enabled;
3693 /* TODO: may need to tear down any action group where we are GO(?) */
3694}
f8d0131a
JM		 3695
3696
3697int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3698{
3699 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3700 if (dev == NULL)
3701 return -1;
3702 if (dev->oper_freq <= 0)
3703 return -1;
3704 return dev->oper_freq;
3705}
0f66abd2
SS		 3706
3707
3708void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
3709{
3710 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
3711 enabled ? "enabled" : "disabled");
3712 p2p->cfg->p2p_intra_bss = enabled;
3713}
b5c9da8d
JM		 3714
3715
3716void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
3717{
3718 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
3719 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
3720}
3f9285ff
JM		 3721
3722
3723int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
3724 const u8 *src, const u8 *bssid, const u8 *buf,
3725 size_t len, unsigned int wait_time)
3726{
3727 if (p2p->p2p_scan_running) {
3728 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
3729 "frame TX until p2p_scan completes");
3730 if (p2p->after_scan_tx) {
3731 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
3732 "previous pending Action frame TX");
3733 os_free(p2p->after_scan_tx);
3734 }
3735 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
3736 len);
3737 if (p2p->after_scan_tx == NULL)
3738 return -1;
3739 p2p->after_scan_tx->freq = freq;
3740 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
3741 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
3742 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
3743 p2p->after_scan_tx->len = len;
3744 p2p->after_scan_tx->wait_time = wait_time;
3745 os_memcpy(p2p->after_scan_tx + 1, buf, len);
3746 return 0;
3747 }
3748
3749 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
3750 buf, len, wait_time);
3751}
7cfc4ac3
AGS		 3752
3753
3754void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
3755 int freq_overall)
3756{
3757 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Best channel: 2.4 GHz: %d,"
3758 " 5 GHz: %d, overall: %d", freq_24, freq_5, freq_overall);
3759 p2p->best_freq_24 = freq_24;
3760 p2p->best_freq_5 = freq_5;
3761 p2p->best_freq_overall = freq_overall;
3762}
231bbd03
SS		 3763
3764
3765const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
3766{
3767 if (p2p == NULL || p2p->go_neg_peer == NULL)
3768 return NULL;
c5db8e51 3769 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 3770}
c165d81e
JB		 3771
3772
3773const struct p2p_peer_info *
3774p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
3775{
3776 struct p2p_device *dev;
3777
3778 if (addr) {
3779 dev = p2p_get_device(p2p, addr);
3780 if (!dev)
3781 return NULL;
3782
3783 if (!next) {
3784 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
3785 return NULL;
3786
3787 return &dev->info;
3788 } else {
3789 do {
3790 dev = dl_list_first(&dev->list,
3791 struct p2p_device,
3792 list);
3793 if (&dev->list == &p2p->devices)
3794 return NULL;
3795 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
3796 }
3797 } else {
3798 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3799 if (!dev)
3800 return NULL;
3801 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
3802 dev = dl_list_first(&dev->list,
3803 struct p2p_device,
3804 list);
3805 if (&dev->list == &p2p->devices)
3806 return NULL;
3807 }
3808 }
3809
3810 return &dev->info;
3811}
303f60d3
JM		 3812
3813
3814int p2p_in_progress(struct p2p_data *p2p)
3815{
3816 if (p2p == NULL)
3817 return 0;
fc6997b3 3818 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 3819}
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