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P2P: Reduce the idle time in Wait peer connect state
[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"
21#include "wps/wps_i.h"
22#include "p2p_i.h"
23#include "p2p.h"
24
25
26static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
27static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
28static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
29 const u8 *sa, const u8 *data, size_t len,
30 int rx_freq);
31static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
32 const u8 *sa, const u8 *data,
33 size_t len);
34static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 35static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 36
37
40c03fd4
JM		 38/*
39 * p2p_scan recovery timeout
40 *
41 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
42 * timeout for this to avoid hitting P2P timeout unnecessarily.
43 */
44#define P2P_SCAN_TIMEOUT 35
45
b22128ef
JM		 46/**
47 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
48 * entries will be removed
49 */
50#define P2P_PEER_EXPIRATION_AGE 300
51
52#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
53
54static void p2p_expire_peers(struct p2p_data *p2p)
55{
56 struct p2p_device *dev, *n;
57 struct os_time now;
58
59 os_get_time(&now);
60 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
61 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
62 continue;
63 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
c5db8e51 64 "entry " MACSTR, MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 65 dl_list_del(&dev->list);
66 p2p_device_free(p2p, dev);
67 }
68}
69
70
71static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
72{
73 struct p2p_data *p2p = eloop_ctx;
74 p2p_expire_peers(p2p);
75 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
76 p2p_expiration_timeout, p2p, NULL);
77}
78
79
80static const char * p2p_state_txt(int state)
81{
82 switch (state) {
83 case P2P_IDLE:
84 return "IDLE";
85 case P2P_SEARCH:
86 return "SEARCH";
87 case P2P_CONNECT:
88 return "CONNECT";
89 case P2P_CONNECT_LISTEN:
90 return "CONNECT_LISTEN";
91 case P2P_GO_NEG:
92 return "GO_NEG";
93 case P2P_LISTEN_ONLY:
94 return "LISTEN_ONLY";
95 case P2P_WAIT_PEER_CONNECT:
96 return "WAIT_PEER_CONNECT";
97 case P2P_WAIT_PEER_IDLE:
98 return "WAIT_PEER_IDLE";
99 case P2P_SD_DURING_FIND:
100 return "SD_DURING_FIND";
101 case P2P_PROVISIONING:
102 return "PROVISIONING";
103 case P2P_PD_DURING_FIND:
104 return "PD_DURING_FIND";
105 case P2P_INVITE:
106 return "INVITE";
107 case P2P_INVITE_LISTEN:
108 return "INVITE_LISTEN";
39185dfa
JM		 109 case P2P_SEARCH_WHEN_READY:
110 return "SEARCH_WHEN_READY";
b22128ef
JM		 111 default:
112 return "?";
113 }
114}
115
116
ec437d9e
JJ		 117u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
118{
119 struct p2p_device *dev = NULL;
120
121 if (!addr || !p2p)
122 return 0;
123
124 dev = p2p_get_device(p2p, addr);
125 if (dev)
126 return dev->wps_prov_info;
127 else
128 return 0;
129}
130
131
132void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *iface_addr)
133{
134 struct p2p_device *dev = NULL;
135
136 if (!iface_addr || !p2p)
137 return;
138
139 dev = p2p_get_device_interface(p2p, iface_addr);
140 if (dev)
141 dev->wps_prov_info = 0;
142}
143
144
b22128ef
JM		 145void p2p_set_state(struct p2p_data *p2p, int new_state)
146{
147 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
148 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
149 p2p->state = new_state;
150}
151
152
153void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
154{
155 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
156 "P2P: Set timeout (state=%s): %u.%06u sec",
157 p2p_state_txt(p2p->state), sec, usec);
158 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
159 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
160}
161
162
163void p2p_clear_timeout(struct p2p_data *p2p)
164{
165 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
166 p2p_state_txt(p2p->state));
167 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
168}
169
170
171void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
172 int status)
173{
174 struct p2p_go_neg_results res;
175 p2p_clear_timeout(p2p);
176 p2p_set_state(p2p, P2P_IDLE);
eb916eb8
JB		 177 if (p2p->go_neg_peer)
178 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
b22128ef
JM		 179 p2p->go_neg_peer = NULL;
180
181 os_memset(&res, 0, sizeof(res));
182 res.status = status;
183 if (peer) {
c5db8e51 184 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 185 ETH_ALEN);
186 os_memcpy(res.peer_interface_addr, peer->intended_addr,
187 ETH_ALEN);
188 }
189 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
190}
191
192
193static void p2p_listen_in_find(struct p2p_data *p2p)
194{
195 unsigned int r, tu;
196 int freq;
197 struct wpabuf *ies;
198
199 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
200 "P2P: Starting short listen state (state=%s)",
201 p2p_state_txt(p2p->state));
202
203 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
204 p2p->cfg->channel);
205 if (freq < 0) {
206 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
207 "P2P: Unknown regulatory class/channel");
208 return;
209 }
210
211 os_get_random((u8 *) &r, sizeof(r));
212 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
213 p2p->min_disc_int) * 100;
214
215 p2p->pending_listen_freq = freq;
216 p2p->pending_listen_sec = 0;
217 p2p->pending_listen_usec = 1024 * tu;
218
219 ies = p2p_build_probe_resp_ies(p2p);
220 if (ies == NULL)
221 return;
222
223 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
224 ies) < 0) {
225 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
226 "P2P: Failed to start listen mode");
227 p2p->pending_listen_freq = 0;
228 }
229 wpabuf_free(ies);
230}
231
232
233int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
234{
235 int freq;
236 struct wpabuf *ies;
237
238 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
239 "P2P: Going to listen(only) state");
240
241 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
242 p2p->cfg->channel);
243 if (freq < 0) {
244 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
245 "P2P: Unknown regulatory class/channel");
246 return -1;
247 }
248
249 p2p->pending_listen_freq = freq;
250 p2p->pending_listen_sec = timeout / 1000;
251 p2p->pending_listen_usec = (timeout % 1000) * 1000;
252
253 if (p2p->p2p_scan_running) {
254 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
255 "P2P: p2p_scan running - delay start of listen state");
256 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
257 return 0;
258 }
259
260 ies = p2p_build_probe_resp_ies(p2p);
261 if (ies == NULL)
262 return -1;
263
264 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
265 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
266 "P2P: Failed to start listen mode");
267 p2p->pending_listen_freq = 0;
268 wpabuf_free(ies);
269 return -1;
270 }
271 wpabuf_free(ies);
272
273 p2p_set_state(p2p, P2P_LISTEN_ONLY);
274
275 return 0;
276}
277
278
279static void p2p_device_clear_reported(struct p2p_data *p2p)
280{
281 struct p2p_device *dev;
282 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
283 dev->flags &= ~P2P_DEV_REPORTED;
284}
285
286
287/**
288 * p2p_get_device - Fetch a peer entry
289 * @p2p: P2P module context from p2p_init()
290 * @addr: P2P Device Address of the peer
291 * Returns: Pointer to the device entry or %NULL if not found
292 */
293struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
294{
295 struct p2p_device *dev;
296 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 297 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 298 return dev;
299 }
300 return NULL;
301}
302
303
304/**
305 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
306 * @p2p: P2P module context from p2p_init()
307 * @addr: P2P Interface Address of the peer
308 * Returns: Pointer to the device entry or %NULL if not found
309 */
310struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
311 const u8 *addr)
312{
313 struct p2p_device *dev;
314 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
315 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
316 return dev;
317 }
318 return NULL;
319}
320
321
322/**
323 * p2p_create_device - Create a peer entry
324 * @p2p: P2P module context from p2p_init()
325 * @addr: P2P Device Address of the peer
326 * Returns: Pointer to the device entry or %NULL on failure
327 *
328 * If there is already an entry for the peer, it will be returned instead of
329 * creating a new one.
330 */
331static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
332 const u8 *addr)
333{
334 struct p2p_device *dev, *oldest = NULL;
335 size_t count = 0;
336
337 dev = p2p_get_device(p2p, addr);
338 if (dev)
339 return dev;
340
341 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
342 count++;
343 if (oldest == NULL ||
344 os_time_before(&dev->last_seen, &oldest->last_seen))
345 oldest = dev;
346 }
347 if (count + 1 > p2p->cfg->max_peers && oldest) {
348 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
349 "P2P: Remove oldest peer entry to make room for a new "
350 "peer");
351 dl_list_del(&oldest->list);
352 p2p_device_free(p2p, oldest);
353 }
354
355 dev = os_zalloc(sizeof(*dev));
356 if (dev == NULL)
357 return NULL;
358 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 359 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 360
361 return dev;
362}
363
364
365static void p2p_copy_client_info(struct p2p_device *dev,
366 struct p2p_client_info *cli)
367{
c5db8e51
KRK		 368 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
369 dev->info.device_name[cli->dev_name_len] = '\0';
370 dev->info.dev_capab = cli->dev_capab;
371 dev->info.config_methods = cli->config_methods;
372 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 373 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
374 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
375 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 376}
377
378
379static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
380 const u8 *go_interface_addr, int freq,
381 const u8 *gi, size_t gi_len)
382{
383 struct p2p_group_info info;
384 size_t c;
385 struct p2p_device *dev;
386
387 if (gi == NULL)
388 return 0;
389
390 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
391 return -1;
392
393 /*
394 * Clear old data for this group; if the devices are still in the
395 * group, the information will be restored in the loop following this.
396 */
397 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 398 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 399 ETH_ALEN) == 0) {
400 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
401 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
402 }
403 }
404
405 for (c = 0; c < info.num_clients; c++) {
406 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 407 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
408 ETH_ALEN) == 0)
409 continue; /* ignore our own entry */
b22128ef
JM		 410 dev = p2p_get_device(p2p, cli->p2p_device_addr);
411 if (dev) {
412 /*
413 * Update information only if we have not received this
414 * directly from the client.
415 */
416 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
417 P2P_DEV_PROBE_REQ_ONLY))
418 p2p_copy_client_info(dev, cli);
419 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
420 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
421 }
422 } else {
423 dev = p2p_create_device(p2p, cli->p2p_device_addr);
424 if (dev == NULL)
425 continue;
426 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
427 p2p_copy_client_info(dev, cli);
428 dev->oper_freq = freq;
c5db8e51
KRK		 429 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
430 dev->info.p2p_device_addr,
8fd7dc1b
JB		 431 &dev->info, 1);
432 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 433 }
434
435 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
436 ETH_ALEN);
437 os_get_time(&dev->last_seen);
438 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
439 os_memcpy(dev->member_in_go_iface, go_interface_addr,
440 ETH_ALEN);
441 }
442
443 return 0;
444}
445
446
b67d0d9e
JM		 447static void p2p_copy_wps_info(struct p2p_device *dev, int probe_req,
448 const struct p2p_message *msg)
449{
450 os_memcpy(dev->info.device_name, msg->device_name,
451 sizeof(dev->info.device_name));
452
453 if (msg->manufacturer &&
454 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
455 os_memset(dev->info.manufacturer, 0,
456 sizeof(dev->info.manufacturer));
457 os_memcpy(dev->info.manufacturer, msg->manufacturer,
458 msg->manufacturer_len);
459 }
460
461 if (msg->model_name &&
462 msg->model_name_len < sizeof(dev->info.model_name)) {
463 os_memset(dev->info.model_name, 0,
464 sizeof(dev->info.model_name));
465 os_memcpy(dev->info.model_name, msg->model_name,
466 msg->model_name_len);
467 }
468
469 if (msg->model_number &&
470 msg->model_number_len < sizeof(dev->info.model_number)) {
471 os_memset(dev->info.model_number, 0,
472 sizeof(dev->info.model_number));
473 os_memcpy(dev->info.model_number, msg->model_number,
474 msg->model_number_len);
475 }
476
477 if (msg->serial_number &&
478 msg->serial_number_len < sizeof(dev->info.serial_number)) {
479 os_memset(dev->info.serial_number, 0,
480 sizeof(dev->info.serial_number));
481 os_memcpy(dev->info.serial_number, msg->serial_number,
482 msg->serial_number_len);
483 }
484
485 if (msg->pri_dev_type)
486 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
487 sizeof(dev->info.pri_dev_type));
488 else if (msg->wps_pri_dev_type)
489 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
490 sizeof(dev->info.pri_dev_type));
491
492 if (msg->wps_sec_dev_type_list) {
493 os_memcpy(dev->info.wps_sec_dev_type_list,
494 msg->wps_sec_dev_type_list,
495 msg->wps_sec_dev_type_list_len);
496 dev->info.wps_sec_dev_type_list_len =
497 msg->wps_sec_dev_type_list_len;
498 }
499
500 if (msg->capability) {
501 dev->info.dev_capab = msg->capability[0];
502 dev->info.group_capab = msg->capability[1];
503 }
504
505 if (msg->ext_listen_timing) {
506 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
507 dev->ext_listen_interval =
508 WPA_GET_LE16(msg->ext_listen_timing + 2);
509 }
510
511 if (!probe_req) {
512 dev->info.config_methods = msg->config_methods ?
513 msg->config_methods : msg->wps_config_methods;
514 }
515}
516
517
b22128ef
JM		 518/**
519 * p2p_add_device - Add peer entries based on scan results
520 * @p2p: P2P module context from p2p_init()
521 * @addr: Source address of Beacon or Probe Response frame (may be either
522 * P2P Device Address or P2P Interface Address)
523 * @level: Signal level (signal strength of the received frame from the peer)
524 * @freq: Frequency on which the Beacon or Probe Response frame was received
525 * @ies: IEs from the Beacon or Probe Response frame
526 * @ies_len: Length of ies buffer in octets
527 * Returns: 0 on success, -1 on failure
528 *
529 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 530 * to the peer table. This function can also be used with some other frames
531 * like Provision Discovery Request that contains P2P Capability and P2P Device
532 * Info attributes.
b22128ef 533 */
17bef1e9
AC		 534int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
535 const u8 *ies, size_t ies_len)
b22128ef
JM		 536{
537 struct p2p_device *dev;
538 struct p2p_message msg;
539 const u8 *p2p_dev_addr;
6f2c0607 540 int i;
b22128ef
JM		 541
542 os_memset(&msg, 0, sizeof(msg));
543 if (p2p_parse_ies(ies, ies_len, &msg)) {
544 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
545 "P2P: Failed to parse P2P IE for a device entry");
546 p2p_parse_free(&msg);
547 return -1;
548 }
549
550 if (msg.p2p_device_addr)
551 p2p_dev_addr = msg.p2p_device_addr;
552 else if (msg.device_id)
553 p2p_dev_addr = msg.device_id;
554 else {
555 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
556 "P2P: Ignore scan data without P2P Device Info or "
557 "P2P Device Id");
558 p2p_parse_free(&msg);
559 return -1;
560 }
561
80c9582a
JM		 562 if (!is_zero_ether_addr(p2p->peer_filter) &&
563 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
564 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
565 "filter for " MACSTR " due to peer filter",
566 MAC2STR(p2p_dev_addr));
567 return 0;
568 }
569
b22128ef
JM		 570 dev = p2p_create_device(p2p, p2p_dev_addr);
571 if (dev == NULL) {
572 p2p_parse_free(&msg);
573 return -1;
574 }
575 os_get_time(&dev->last_seen);
576 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
577
578 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
579 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
580 if (msg.ssid &&
581 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
582 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
583 != 0)) {
584 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
585 dev->oper_ssid_len = msg.ssid[1];
586 }
587
588 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
589 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
590 int ds_freq;
591 if (*msg.ds_params == 14)
592 ds_freq = 2484;
593 else
594 ds_freq = 2407 + *msg.ds_params * 5;
595 if (freq != ds_freq) {
596 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
597 "P2P: Update Listen frequency based on DS "
598 "Parameter Set IE: %d -> %d MHz",
599 freq, ds_freq);
600 freq = ds_freq;
601 }
602 }
603
604 if (dev->listen_freq && dev->listen_freq != freq) {
605 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
606 "P2P: Update Listen frequency based on scan "
607 "results (" MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 608 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
609 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef
JM		 610 }
611 dev->listen_freq = freq;
f8d0131a
JM		 612 if (msg.group_info)
613 dev->oper_freq = freq;
6402fc43 614 dev->info.level = level;
b22128ef 615
b67d0d9e 616 p2p_copy_wps_info(dev, 0, &msg);
e57ae6e1 617
10c5d2a5 618 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 619 wpabuf_free(dev->info.wps_vendor_ext[i]);
620 dev->info.wps_vendor_ext[i] = NULL;
621 }
622
10c5d2a5 623 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 624 if (msg.wps_vendor_ext[i] == NULL)
625 break;
626 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
627 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
628 if (dev->info.wps_vendor_ext[i] == NULL)
629 break;
630 }
631
b22128ef
JM		 632 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq, msg.group_info,
633 msg.group_info_len);
634
635 p2p_parse_free(&msg);
636
637 if (p2p_pending_sd_req(p2p, dev))
638 dev->flags |= P2P_DEV_SD_SCHEDULE;
639
640 if (dev->flags & P2P_DEV_REPORTED)
641 return 0;
642
643 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
644 "P2P: Peer found with Listen frequency %d MHz", freq);
645 if (dev->flags & P2P_DEV_USER_REJECTED) {
646 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
647 "P2P: Do not report rejected device");
648 return 0;
649 }
8fd7dc1b
JB		 650
651 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
652 !(dev->flags & P2P_DEV_REPORTED_ONCE));
653 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 654
655 return 0;
656}
657
658
659static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
660{
6f2c0607
JMB		 661 int i;
662
5cfda25e
JJ		 663 if (p2p->go_neg_peer == dev) {
664 /*
665 * If GO Negotiation is in progress, report that it has failed.
666 */
667 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 668 p2p->go_neg_peer = NULL;
5cfda25e 669 }
b22128ef
JM		 670 if (p2p->invite_peer == dev)
671 p2p->invite_peer = NULL;
672 if (p2p->sd_peer == dev)
673 p2p->sd_peer = NULL;
674 if (p2p->pending_client_disc_go == dev)
675 p2p->pending_client_disc_go = NULL;
676
f5fc6032
AC		 677 /* dev_lost() device, but only if it was previously dev_found() */
678 if (dev->flags & P2P_DEV_REPORTED_ONCE)
679 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
680 dev->info.p2p_device_addr);
56eeb8f2 681
10c5d2a5 682 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 683 wpabuf_free(dev->info.wps_vendor_ext[i]);
684 dev->info.wps_vendor_ext[i] = NULL;
685 }
686
b22128ef
JM		 687 os_free(dev);
688}
689
690
691static int p2p_get_next_prog_freq(struct p2p_data *p2p)
692{
693 struct p2p_channels *c;
694 struct p2p_reg_class *cla;
695 size_t cl, ch;
696 int found = 0;
697 u8 reg_class;
698 u8 channel;
699 int freq;
700
701 c = &p2p->cfg->channels;
702 for (cl = 0; cl < c->reg_classes; cl++) {
703 cla = &c->reg_class[cl];
704 if (cla->reg_class != p2p->last_prog_scan_class)
705 continue;
706 for (ch = 0; ch < cla->channels; ch++) {
707 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
708 found = 1;
709 break;
710 }
711 }
712 if (found)
713 break;
714 }
715
716 if (!found) {
717 /* Start from beginning */
718 reg_class = c->reg_class[0].reg_class;
719 channel = c->reg_class[0].channel[0];
720 } else {
721 /* Pick the next channel */
722 ch++;
723 if (ch == cla->channels) {
724 cl++;
725 if (cl == c->reg_classes)
726 cl = 0;
727 ch = 0;
728 }
729 reg_class = c->reg_class[cl].reg_class;
730 channel = c->reg_class[cl].channel[ch];
731 }
732
733 freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
734 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
735 "channel: reg_class %u channel %u -> %d MHz",
736 reg_class, channel, freq);
737 p2p->last_prog_scan_class = reg_class;
738 p2p->last_prog_scan_chan = channel;
739
740 if (freq == 2412 || freq == 2437 || freq == 2462)
741 return 0; /* No need to add social channels */
742 return freq;
743}
744
745
746static void p2p_search(struct p2p_data *p2p)
747{
748 int freq = 0;
749 enum p2p_scan_type type;
750
751 if (p2p->drv_in_listen) {
752 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
753 "in Listen state - wait for it to end before "
754 "continuing");
755 return;
756 }
757 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
758
759 if (p2p->go_neg_peer) {
760 /*
761 * Only scan the known listen frequency of the peer
762 * during GO Negotiation start.
763 */
764 freq = p2p->go_neg_peer->listen_freq;
765 if (freq <= 0)
766 freq = p2p->go_neg_peer->oper_freq;
767 type = P2P_SCAN_SPECIFIC;
768 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
769 "for freq %u (GO Neg)", freq);
770 } else if (p2p->invite_peer) {
771 /*
772 * Only scan the known listen frequency of the peer
773 * during Invite start.
774 */
775 freq = p2p->invite_peer->listen_freq;
776 if (freq <= 0)
777 freq = p2p->invite_peer->oper_freq;
778 type = P2P_SCAN_SPECIFIC;
779 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
780 "for freq %u (Invite)", freq);
781 } else if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
782 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
783 type = P2P_SCAN_SOCIAL_PLUS_ONE;
784 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
785 "(+ freq %u)", freq);
786 } else {
787 type = P2P_SCAN_SOCIAL;
788 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
789 }
790
046ef4aa
JMB		 791 if (p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
792 p2p->num_req_dev_types, p2p->req_dev_types) < 0)
793 {
b22128ef
JM		 794 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
795 "P2P: Scan request failed");
796 p2p_continue_find(p2p);
40c03fd4
JM		 797 } else {
798 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
799 p2p->p2p_scan_running = 1;
800 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
801 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
802 p2p, NULL);
b22128ef
JM		 803 }
804}
805
806
807static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
808{
809 struct p2p_data *p2p = eloop_ctx;
810 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
811 p2p_stop_find(p2p);
812}
813
814
815static int p2p_run_after_scan(struct p2p_data *p2p)
816{
817 struct p2p_device *dev;
818 enum p2p_after_scan op;
819
3f9285ff 820 if (p2p->after_scan_tx) {
3f9285ff
JM		 821 /* TODO: schedule p2p_run_after_scan to be called from TX
822 * status callback(?) */
823 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
824 "Action frame at p2p_scan completion");
46eeedac
JM		 825 p2p->cfg->send_action(p2p->cfg->cb_ctx,
826 p2p->after_scan_tx->freq,
827 p2p->after_scan_tx->dst,
828 p2p->after_scan_tx->src,
829 p2p->after_scan_tx->bssid,
830 (u8 *) (p2p->after_scan_tx + 1),
831 p2p->after_scan_tx->len,
832 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 833 os_free(p2p->after_scan_tx);
834 p2p->after_scan_tx = NULL;
835 return 1;
836 }
837
b22128ef
JM		 838 op = p2p->start_after_scan;
839 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
840 switch (op) {
841 case P2P_AFTER_SCAN_NOTHING:
842 break;
843 case P2P_AFTER_SCAN_LISTEN:
844 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
845 "requested Listen state");
846 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
847 p2p->pending_listen_usec / 1000);
848 return 1;
849 case P2P_AFTER_SCAN_CONNECT:
850 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
851 "requested connect with " MACSTR,
852 MAC2STR(p2p->after_scan_peer));
853 dev = p2p_get_device(p2p, p2p->after_scan_peer);
854 if (dev == NULL) {
855 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
856 "known anymore");
857 break;
858 }
859 p2p_connect_send(p2p, dev);
860 return 1;
861 }
862
863 return 0;
864}
865
866
b22128ef
JM		 867static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
868{
869 struct p2p_data *p2p = eloop_ctx;
870 int running;
871 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
872 "(running=%d)", p2p->p2p_scan_running);
873 running = p2p->p2p_scan_running;
874 /* Make sure we recover from missed scan results callback */
875 p2p->p2p_scan_running = 0;
876
877 if (running)
878 p2p_run_after_scan(p2p);
879}
880
881
046ef4aa
JMB		 882static void p2p_free_req_dev_types(struct p2p_data *p2p)
883{
884 p2p->num_req_dev_types = 0;
885 os_free(p2p->req_dev_types);
886 p2p->req_dev_types = NULL;
887}
888
889
b22128ef 890int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa
JMB		 891 enum p2p_discovery_type type,
892 unsigned int num_req_dev_types, const u8 *req_dev_types)
b22128ef
JM		 893{
894 int res;
895
896 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
897 type);
898 if (p2p->p2p_scan_running) {
899 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
900 "already running");
901 }
046ef4aa
JMB		 902
903 p2p_free_req_dev_types(p2p);
904 if (req_dev_types && num_req_dev_types) {
905 p2p->req_dev_types = os_malloc(num_req_dev_types *
906 WPS_DEV_TYPE_LEN);
907 if (p2p->req_dev_types == NULL)
908 return -1;
909 os_memcpy(p2p->req_dev_types, req_dev_types,
910 num_req_dev_types * WPS_DEV_TYPE_LEN);
911 p2p->num_req_dev_types = num_req_dev_types;
912 }
913
b22128ef
JM		 914 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
915 p2p_clear_timeout(p2p);
916 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
917 p2p->find_type = type;
918 p2p_device_clear_reported(p2p);
919 p2p_set_state(p2p, P2P_SEARCH);
920 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 921 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 922 if (timeout)
923 eloop_register_timeout(timeout, 0, p2p_find_timeout,
924 p2p, NULL);
925 switch (type) {
926 case P2P_FIND_START_WITH_FULL:
927 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 928 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
929 p2p->num_req_dev_types,
930 p2p->req_dev_types);
b22128ef
JM		 931 break;
932 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 933 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
934 p2p->num_req_dev_types,
935 p2p->req_dev_types);
b22128ef
JM		 936 break;
937 default:
938 return -1;
939 }
940
941 if (res == 0) {
942 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
943 p2p->p2p_scan_running = 1;
944 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
945 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
946 p2p, NULL);
39185dfa
JM		 947 } else if (res == 1) {
948 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Could not start "
949 "p2p_scan at this point - will try again after "
950 "previous scan completes");
951 res = 0;
952 p2p_set_state(p2p, P2P_SEARCH_WHEN_READY);
953 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 954 } else {
955 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
956 "p2p_scan");
0c96fd6d
JM		 957 p2p_set_state(p2p, P2P_IDLE);
958 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 959 }
960
961 return res;
962}
963
964
39185dfa
JM		 965int p2p_other_scan_completed(struct p2p_data *p2p)
966{
967 if (p2p->state != P2P_SEARCH_WHEN_READY)
968 return 0;
969 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting pending P2P find "
970 "now that previous scan was completed");
971 if (p2p_find(p2p, p2p->last_p2p_find_timeout, p2p->find_type,
972 p2p->num_req_dev_types, p2p->req_dev_types) < 0)
973 return 0;
974 return 1;
975}
976
977
0b8889d8 978void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef
JM		 979{
980 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
981 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
982 p2p_clear_timeout(p2p);
983 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 984 p2p_free_req_dev_types(p2p);
b22128ef
JM		 985 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
986 p2p->go_neg_peer = NULL;
987 p2p->sd_peer = NULL;
988 p2p->invite_peer = NULL;
0b8889d8
JM		 989 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
990 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip stop_listen "
991 "since we are on correct channel for response");
992 return;
993 }
54b8f994
JM		 994 if (p2p->drv_in_listen) {
995 /*
996 * The driver may not deliver callback to p2p_listen_end()
997 * when the operation gets canceled, so clear the internal
998 * variable that is tracking driver state.
999 */
1000 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear "
1001 "drv_in_listen (%d)", p2p->drv_in_listen);
1002 p2p->drv_in_listen = 0;
1003 }
b22128ef
JM		 1004 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1005}
1006
1007
0b8889d8
JM		 1008void p2p_stop_find(struct p2p_data *p2p)
1009{
1010 p2p_stop_find_for_freq(p2p, 0);
1011}
1012
1013
7861cb08 1014static int p2p_prepare_channel(struct p2p_data *p2p, unsigned int force_freq)
b22128ef 1015{
b22128ef 1016 if (force_freq) {
1e19f734 1017 u8 op_reg_class, op_channel;
b22128ef 1018 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
1e19f734 1019 &op_reg_class, &op_channel) < 0) {
b22128ef
JM		 1020 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1021 "P2P: Unsupported frequency %u MHz",
1022 force_freq);
1023 return -1;
1024 }
1e19f734
JM		 1025 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
1026 op_channel)) {
1027 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1028 "P2P: Frequency %u MHz (oper_class %u "
1029 "channel %u) not allowed for P2P",
1030 force_freq, op_reg_class, op_channel);
1031 return -1;
1032 }
1033 p2p->op_reg_class = op_reg_class;
1034 p2p->op_channel = op_channel;
b22128ef
JM		 1035 p2p->channels.reg_classes = 1;
1036 p2p->channels.reg_class[0].channels = 1;
1037 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1038 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1039 } else {
7cfc4ac3
AGS		 1040 u8 op_reg_class, op_channel;
1041
1042 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1043 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
1044 p2p_freq_to_channel(p2p->cfg->country,
1045 p2p->best_freq_overall,
1046 &op_reg_class, &op_channel) == 0) {
1047 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1048 "P2P: Select best overall channel as "
1049 "operating channel preference");
1050 p2p->op_reg_class = op_reg_class;
1051 p2p->op_channel = op_channel;
1052 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1053 p2p_supported_freq(p2p, p2p->best_freq_5) &&
1054 p2p_freq_to_channel(p2p->cfg->country,
1055 p2p->best_freq_5,
1056 &op_reg_class, &op_channel) ==
1057 0) {
1058 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1059 "P2P: Select best 5 GHz channel as "
1060 "operating channel preference");
1061 p2p->op_reg_class = op_reg_class;
1062 p2p->op_channel = op_channel;
1063 } else if (!p2p->cfg->cfg_op_channel &&
1064 p2p->best_freq_24 > 0 &&
1065 p2p_supported_freq(p2p, p2p->best_freq_24) &&
1066 p2p_freq_to_channel(p2p->cfg->country,
1067 p2p->best_freq_24,
1068 &op_reg_class, &op_channel) ==
1069 0) {
1070 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1071 "P2P: Select best 2.4 GHz channel as "
1072 "operating channel preference");
1073 p2p->op_reg_class = op_reg_class;
1074 p2p->op_channel = op_channel;
1075 } else {
1076 p2p->op_reg_class = p2p->cfg->op_reg_class;
1077 p2p->op_channel = p2p->cfg->op_channel;
1078 }
1079
b22128ef
JM		 1080 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1081 sizeof(struct p2p_channels));
1082 }
1083 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1084 "P2P: Own preference for operation channel: "
7cfc4ac3 1085 "Operating Class %u Channel %u%s",
b22128ef
JM		 1086 p2p->op_reg_class, p2p->op_channel,
1087 force_freq ? " (forced)" : "");
1088
7861cb08
JM		 1089 return 0;
1090}
1091
1092
acc247b2
JM		 1093static void p2p_set_dev_persistent(struct p2p_device *dev,
1094 int persistent_group)
1095{
1096 switch (persistent_group) {
1097 case 0:
1098 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1099 P2P_DEV_PREFER_PERSISTENT_RECONN);
1100 break;
1101 case 1:
1102 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1103 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1104 break;
1105 case 2:
1106 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1107 P2P_DEV_PREFER_PERSISTENT_RECONN;
1108 break;
1109 }
1110}
1111
1112
7861cb08
JM		 1113int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1114 enum p2p_wps_method wps_method,
1115 int go_intent, const u8 *own_interface_addr,
1116 unsigned int force_freq, int persistent_group)
1117{
1118 struct p2p_device *dev;
1119
1120 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1121 "P2P: Request to start group negotiation - peer=" MACSTR
1122 " GO Intent=%d Intended Interface Address=" MACSTR
1123 " wps_method=%d persistent_group=%d",
1124 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1125 wps_method, persistent_group);
1126
1127 if (p2p_prepare_channel(p2p, force_freq) < 0)
1128 return -1;
1129
4458d915 1130 p2p->ssid_set = 0;
b22128ef
JM		 1131 dev = p2p_get_device(p2p, peer_addr);
1132 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
1133 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1134 "P2P: Cannot connect to unknown P2P Device " MACSTR,
1135 MAC2STR(peer_addr));
1136 return -1;
1137 }
1138
1139 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1140 if (!(dev->info.dev_capab &
1141 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
b22128ef
JM		 1142 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1143 "P2P: Cannot connect to P2P Device " MACSTR
1144 " that is in a group and is not discoverable",
1145 MAC2STR(peer_addr));
1146 return -1;
1147 }
1148 if (dev->oper_freq <= 0) {
1149 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1150 "P2P: Cannot connect to P2P Device " MACSTR
1151 " with incomplete information",
1152 MAC2STR(peer_addr));
1153 return -1;
1154 }
1155
1156 /*
1157 * First, try to connect directly. If the peer does not
1158 * acknowledge frames, assume it is sleeping and use device
1159 * discoverability via the GO at that point.
1160 */
1161 }
1162
1163 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1164 dev->flags &= ~P2P_DEV_USER_REJECTED;
1165 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1166 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
9dac8c3e 1167 dev->connect_reqs = 0;
b22128ef
JM		 1168 dev->go_neg_req_sent = 0;
1169 dev->go_state = UNKNOWN_GO;
acc247b2 1170 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1171 p2p->go_intent = go_intent;
1172 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1173
1174 if (p2p->state != P2P_IDLE)
1175 p2p_stop_find(p2p);
1176
f44ae207
JM		 1177 if (p2p->after_scan_tx) {
1178 /*
1179 * We need to drop the pending frame to avoid issues with the
1180 * new GO Negotiation, e.g., when the pending frame was from a
1181 * previous attempt at starting a GO Negotiation.
1182 */
1183 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
1184 "previous pending Action frame TX that was waiting "
1185 "for p2p_scan completion");
1186 os_free(p2p->after_scan_tx);
1187 p2p->after_scan_tx = NULL;
1188 }
1189
b22128ef
JM		 1190 dev->wps_method = wps_method;
1191 dev->status = P2P_SC_SUCCESS;
d5b20a73
JM		 1192
1193 if (force_freq)
1194 dev->flags |= P2P_DEV_FORCE_FREQ;
1195 else
1196 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1197
b22128ef
JM		 1198 if (p2p->p2p_scan_running) {
1199 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1200 "P2P: p2p_scan running - delay connect send");
1201 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1202 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1203 return 0;
1204 }
1205 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1206
1207 return p2p_connect_send(p2p, dev);
1208}
1209
1210
1211int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1212 enum p2p_wps_method wps_method,
1213 int go_intent, const u8 *own_interface_addr,
1214 unsigned int force_freq, int persistent_group)
1215{
1216 struct p2p_device *dev;
1217
1218 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1219 "P2P: Request to authorize group negotiation - peer=" MACSTR
1220 " GO Intent=%d Intended Interface Address=" MACSTR
1221 " wps_method=%d persistent_group=%d",
1222 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
1223 wps_method, persistent_group);
1224
7861cb08
JM		 1225 if (p2p_prepare_channel(p2p, force_freq) < 0)
1226 return -1;
b22128ef
JM		 1227
1228 dev = p2p_get_device(p2p, peer_addr);
1229 if (dev == NULL) {
1230 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1231 "P2P: Cannot authorize unknown P2P Device " MACSTR,
1232 MAC2STR(peer_addr));
1233 return -1;
1234 }
1235
1236 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1237 dev->flags &= ~P2P_DEV_USER_REJECTED;
1238 dev->go_neg_req_sent = 0;
1239 dev->go_state = UNKNOWN_GO;
acc247b2 1240 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1241 p2p->go_intent = go_intent;
1242 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1243
1244 dev->wps_method = wps_method;
1245 dev->status = P2P_SC_SUCCESS;
1246
d5b20a73
JM		 1247 if (force_freq)
1248 dev->flags |= P2P_DEV_FORCE_FREQ;
1249 else
1250 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1251
b22128ef
JM		 1252 return 0;
1253}
1254
1255
1256void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1257 struct p2p_device *dev, struct p2p_message *msg)
1258{
1259 os_get_time(&dev->last_seen);
1260
b67d0d9e 1261 p2p_copy_wps_info(dev, 0, msg);
e57ae6e1 1262
b22128ef
JM		 1263 if (msg->listen_channel) {
1264 int freq;
1265 freq = p2p_channel_to_freq((char *) msg->listen_channel,
1266 msg->listen_channel[3],
1267 msg->listen_channel[4]);
1268 if (freq < 0) {
1269 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1270 "P2P: Unknown peer Listen channel: "
1271 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1272 msg->listen_channel[0],
1273 msg->listen_channel[1],
1274 msg->listen_channel[2],
1275 msg->listen_channel[3],
1276 msg->listen_channel[4]);
1277 } else {
1278 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1279 "peer " MACSTR " Listen channel: %u -> %u MHz",
c5db8e51 1280 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1281 dev->listen_freq, freq);
1282 dev->listen_freq = freq;
1283 }
1284 }
b22128ef
JM		 1285
1286 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1287 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1288 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1289 "P2P: Completed device entry based on data from "
1290 "GO Negotiation Request");
1291 } else {
1292 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1293 "P2P: Created device entry based on GO Neg Req: "
1294 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1295 "listen_freq=%d",
c5db8e51
KRK		 1296 MAC2STR(dev->info.p2p_device_addr),
1297 dev->info.dev_capab, dev->info.group_capab,
1298 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1299 }
1300
1301 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1302
1303 if (dev->flags & P2P_DEV_USER_REJECTED) {
1304 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1305 "P2P: Do not report rejected device");
1306 return;
1307 }
1308
8fd7dc1b
JB		 1309 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1310 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1311 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1312}
1313
1314
1315void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1316{
1317 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1318 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1319 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1320 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1321 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1322}
1323
1324
1325int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1326{
1327 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1328 p2p_random(params->passphrase, 8);
1329 return 0;
1330}
1331
1332
1333void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1334{
1335 struct p2p_go_neg_results res;
1336 int go = peer->go_state == LOCAL_GO;
1337 struct p2p_channels intersection;
1338 int freqs;
1339 size_t i, j;
1340
1341 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1342 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
c5db8e51 1343 "GO)", MAC2STR(peer->info.p2p_device_addr),
b22128ef
JM		 1344 go ? "local end" : "peer");
1345
1346 os_memset(&res, 0, sizeof(res));
1347 res.role_go = go;
c5db8e51 1348 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1349 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1350 res.wps_method = peer->wps_method;
acc247b2
JM		 1351 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1352 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1353 res.persistent_group = 2;
1354 else
1355 res.persistent_group = 1;
1356 }
b22128ef
JM		 1357
1358 if (go) {
1359 /* Setup AP mode for WPS provisioning */
1360 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1361 p2p->op_reg_class,
1362 p2p->op_channel);
1363 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1364 res.ssid_len = p2p->ssid_len;
1365 p2p_random(res.passphrase, 8);
e9a7ae41 1366 } else {
b22128ef 1367 res.freq = peer->oper_freq;
e9a7ae41
JM		 1368 if (p2p->ssid_len) {
1369 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1370 res.ssid_len = p2p->ssid_len;
1371 }
1372 }
b22128ef
JM		 1373
1374 p2p_channels_intersect(&p2p->channels, &peer->channels,
1375 &intersection);
1376 freqs = 0;
1377 for (i = 0; i < intersection.reg_classes; i++) {
1378 struct p2p_reg_class *c = &intersection.reg_class[i];
1379 if (freqs + 1 == P2P_MAX_CHANNELS)
1380 break;
1381 for (j = 0; j < c->channels; j++) {
1382 int freq;
1383 if (freqs + 1 == P2P_MAX_CHANNELS)
1384 break;
1385 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1386 c->channel[j]);
1387 if (freq < 0)
1388 continue;
1389 res.freq_list[freqs++] = freq;
1390 }
1391 }
1392
ae3e3421
JM		 1393 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1394
b22128ef 1395 p2p_clear_timeout(p2p);
4458d915 1396 p2p->ssid_set = 0;
b22128ef
JM		 1397 peer->go_neg_req_sent = 0;
1398 peer->wps_method = WPS_NOT_READY;
1399
1400 p2p_set_state(p2p, P2P_PROVISIONING);
1401 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1402}
1403
1404
1405static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1406 const u8 *data, size_t len, int rx_freq)
1407{
1408 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1409 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1410 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1411
1412 if (len < 1)
1413 return;
1414
1415 switch (data[0]) {
1416 case P2P_GO_NEG_REQ:
1417 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1418 break;
1419 case P2P_GO_NEG_RESP:
1420 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1421 break;
1422 case P2P_GO_NEG_CONF:
1423 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1424 break;
1425 case P2P_INVITATION_REQ:
1426 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1427 rx_freq);
1428 break;
1429 case P2P_INVITATION_RESP:
1430 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1431 break;
1432 case P2P_PROV_DISC_REQ:
1433 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1434 break;
1435 case P2P_PROV_DISC_RESP:
1436 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1437 break;
1438 case P2P_DEV_DISC_REQ:
1439 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1440 break;
1441 case P2P_DEV_DISC_RESP:
1442 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1443 break;
1444 default:
1445 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1446 "P2P: Unsupported P2P Public Action frame type %d",
1447 data[0]);
1448 break;
1449 }
1450}
1451
1452
19df9b07
JM		 1453static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1454 const u8 *sa, const u8 *bssid, const u8 *data,
1455 size_t len, int freq)
b22128ef
JM		 1456{
1457 if (len < 1)
1458 return;
1459
1460 switch (data[0]) {
1461 case WLAN_PA_VENDOR_SPECIFIC:
1462 data++;
1463 len--;
1464 if (len < 3)
1465 return;
1466 if (WPA_GET_BE24(data) != OUI_WFA)
1467 return;
1468
1469 data += 3;
1470 len -= 3;
1471 if (len < 1)
1472 return;
1473
1474 if (*data != P2P_OUI_TYPE)
1475 return;
1476
1477 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1478 break;
1479 case WLAN_PA_GAS_INITIAL_REQ:
1480 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1481 break;
1482 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1483 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1484 break;
1485 case WLAN_PA_GAS_COMEBACK_REQ:
1486 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1487 break;
1488 case WLAN_PA_GAS_COMEBACK_RESP:
1489 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1490 break;
1491 }
1492}
1493
1494
1495void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1496 const u8 *bssid, u8 category,
1497 const u8 *data, size_t len, int freq)
1498{
1499 if (category == WLAN_ACTION_PUBLIC) {
1500 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1501 return;
1502 }
1503
1504 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1505 return;
1506
1507 if (len < 4)
1508 return;
1509
1510 if (WPA_GET_BE24(data) != OUI_WFA)
1511 return;
1512 data += 3;
1513 len -= 3;
1514
1515 if (*data != P2P_OUI_TYPE)
1516 return;
1517 data++;
1518 len--;
1519
1520 /* P2P action frame */
1521 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1522 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1523 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1524
1525 if (len < 1)
1526 return;
1527 switch (data[0]) {
1528 case P2P_NOA:
1529 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1530 "P2P: Received P2P Action - Notice of Absence");
1531 /* TODO */
1532 break;
1533 case P2P_PRESENCE_REQ:
1534 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1535 break;
1536 case P2P_PRESENCE_RESP:
1537 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1538 break;
1539 case P2P_GO_DISC_REQ:
1540 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1541 break;
1542 default:
1543 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1544 "P2P: Received P2P Action - unknown type %u", data[0]);
1545 break;
1546 }
1547}
1548
1549
1550static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1551{
1552 struct p2p_data *p2p = eloop_ctx;
1553 if (p2p->go_neg_peer == NULL)
1554 return;
1555 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1556 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1557 p2p_connect_send(p2p, p2p->go_neg_peer);
1558}
1559
1560
1561static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1562{
1563 struct p2p_data *p2p = eloop_ctx;
1564 if (p2p->invite_peer == NULL)
1565 return;
1566 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1567 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1568}
1569
1570
1571static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1572 const u8 *ie, size_t ie_len)
1573{
1574 struct p2p_message msg;
1575 struct p2p_device *dev;
1576
1577 os_memset(&msg, 0, sizeof(msg));
1578 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1579 {
1580 p2p_parse_free(&msg);
1581 return; /* not a P2P probe */
1582 }
1583
1584 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1585 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1586 != 0) {
1587 /* The Probe Request is not part of P2P Device Discovery. It is
1588 * not known whether the source address of the frame is the P2P
1589 * Device Address or P2P Interface Address. Do not add a new
1590 * peer entry based on this frames.
1591 */
1592 p2p_parse_free(&msg);
1593 return;
1594 }
1595
1596 dev = p2p_get_device(p2p, addr);
1597 if (dev) {
1598 if (dev->country[0] == 0 && msg.listen_channel)
1599 os_memcpy(dev->country, msg.listen_channel, 3);
ed908a55 1600 os_get_time(&dev->last_seen);
b22128ef
JM		 1601 p2p_parse_free(&msg);
1602 return; /* already known */
1603 }
1604
1605 dev = p2p_create_device(p2p, addr);
1606 if (dev == NULL) {
1607 p2p_parse_free(&msg);
1608 return;
1609 }
1610
1611 os_get_time(&dev->last_seen);
1612 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1613
b22128ef
JM		 1614 if (msg.listen_channel) {
1615 os_memcpy(dev->country, msg.listen_channel, 3);
1616 dev->listen_freq = p2p_channel_to_freq(dev->country,
1617 msg.listen_channel[3],
1618 msg.listen_channel[4]);
1619 }
1620
b67d0d9e 1621 p2p_copy_wps_info(dev, 1, &msg);
e57ae6e1 1622
b22128ef
JM		 1623 p2p_parse_free(&msg);
1624
1625 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1626 "P2P: Created device entry based on Probe Req: " MACSTR
1627 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1628 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1629 dev->info.group_capab, dev->info.device_name,
1630 dev->listen_freq);
b22128ef
JM		 1631}
1632
1633
1634struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1635 const u8 *addr,
1636 struct p2p_message *msg)
1637{
1638 struct p2p_device *dev;
1639
1640 dev = p2p_get_device(p2p, addr);
1641 if (dev) {
1642 os_get_time(&dev->last_seen);
1643 return dev; /* already known */
1644 }
1645
1646 dev = p2p_create_device(p2p, addr);
1647 if (dev == NULL)
1648 return NULL;
1649
1650 p2p_add_dev_info(p2p, addr, dev, msg);
1651
1652 return dev;
1653}
1654
1655
1656static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1657{
1658 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1659 return 1;
1660 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1661 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1662 WPA_GET_BE16(&req_dev_type[6]) == 0)
1663 return 1; /* Category match with wildcard OUI/sub-category */
1664 return 0;
1665}
1666
1667
1668int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1669 size_t num_req_dev_type)
1670{
1671 size_t i;
1672 for (i = 0; i < num_req_dev_type; i++) {
1673 if (dev_type_match(dev_type, req_dev_type[i]))
1674 return 1;
1675 }
1676 return 0;
1677}
1678
1679
1680/**
1681 * p2p_match_dev_type - Match local device type with requested type
1682 * @p2p: P2P module context from p2p_init()
1683 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1684 * Returns: 1 on match, 0 on mismatch
1685 *
1686 * This function can be used to match the Requested Device Type attribute in
1687 * WPS IE with the local device types for deciding whether to reply to a Probe
1688 * Request frame.
1689 */
1690int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1691{
1692 struct wps_parse_attr attr;
1693 size_t i;
1694
1695 if (wps_parse_msg(wps, &attr))
1696 return 1; /* assume no Requested Device Type attributes */
1697
1698 if (attr.num_req_dev_type == 0)
1699 return 1; /* no Requested Device Type attributes -> match */
1700
1701 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1702 attr.num_req_dev_type))
1703 return 1; /* Own Primary Device Type matches */
1704
1705 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1706 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1707 attr.req_dev_type,
1708 attr.num_req_dev_type))
1709 return 1; /* Own Secondary Device Type matches */
1710
1711 /* No matching device type found */
1712 return 0;
1713}
1714
1715
1716struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1717{
1718 struct wpabuf *buf;
1719 u8 *len;
1720
1721 buf = wpabuf_alloc(1000);
1722 if (buf == NULL)
1723 return NULL;
1724
b22128ef
JM		 1725 p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
1726
1727 /* P2P IE */
1728 len = p2p_buf_add_ie_hdr(buf);
1729 p2p_buf_add_capability(buf, p2p->dev_capab, 0);
1730 if (p2p->ext_listen_interval)
1731 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1732 p2p->ext_listen_interval);
1733 p2p_buf_add_device_info(buf, p2p, NULL);
1734 p2p_buf_update_ie_hdr(buf, len);
1735
1736 return buf;
1737}
1738
1739
e1d52629
JM		 1740static int is_11b(u8 rate)
1741{
1742 return rate == 0x02 || rate == 0x04 || rate == 0x0b || rate == 0x16;
1743}
1744
1745
1746static int supp_rates_11b_only(struct ieee802_11_elems *elems)
1747{
1748 int num_11b = 0, num_others = 0;
1749 int i;
1750
1751 if (elems->supp_rates == NULL && elems->ext_supp_rates == NULL)
1752 return 0;
1753
1754 for (i = 0; elems->supp_rates && i < elems->supp_rates_len; i++) {
1755 if (is_11b(elems->supp_rates[i]))
1756 num_11b++;
1757 else
1758 num_others++;
1759 }
1760
70dbe3b6
JM		 1761 for (i = 0; elems->ext_supp_rates && i < elems->ext_supp_rates_len;
1762 i++) {
1763 if (is_11b(elems->ext_supp_rates[i]))
1764 num_11b++;
1765 else
1766 num_others++;
1767 }
1768
e1d52629
JM		 1769 return num_11b > 0 && num_others == 0;
1770}
1771
1772
04a85e44
JM		 1773static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr,
1774 const u8 *dst, const u8 *bssid, const u8 *ie,
b22128ef
JM		 1775 size_t ie_len)
1776{
1777 struct ieee802_11_elems elems;
1778 struct wpabuf *buf;
1779 struct ieee80211_mgmt *resp;
97c5b3c4 1780 struct p2p_message msg;
b22128ef
JM		 1781 struct wpabuf *ies;
1782
1783 if (!p2p->in_listen || !p2p->drv_in_listen) {
1784 /* not in Listen state - ignore Probe Request */
1785 return;
1786 }
1787
1788 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1789 ParseFailed) {
1790 /* Ignore invalid Probe Request frames */
1791 return;
1792 }
1793
1794 if (elems.p2p == NULL) {
1795 /* not a P2P probe - ignore it */
1796 return;
1797 }
1798
04a85e44
JM		 1799 if (dst && !is_broadcast_ether_addr(dst) &&
1800 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1801 /* Not sent to the broadcast address or our P2P Device Address
1802 */
1803 return;
1804 }
1805
1806 if (bssid && !is_broadcast_ether_addr(bssid)) {
1807 /* Not sent to the Wildcard BSSID */
1808 return;
1809 }
1810
b22128ef
JM		 1811 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1812 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1813 0) {
1814 /* not using P2P Wildcard SSID - ignore */
1815 return;
1816 }
1817
e1d52629
JM		 1818 if (supp_rates_11b_only(&elems)) {
1819 /* Indicates support for 11b rates only */
1820 return;
1821 }
1822
97c5b3c4
JM		 1823 os_memset(&msg, 0, sizeof(msg));
1824 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
1825 /* Could not parse P2P attributes */
1826 return;
1827 }
1828
1829 if (msg.device_id &&
1830 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN != 0)) {
1831 /* Device ID did not match */
1832 p2p_parse_free(&msg);
1833 return;
1834 }
1835
b22128ef 1836 /* Check Requested Device Type match */
97c5b3c4
JM		 1837 if (msg.wps_attributes &&
1838 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 1839 /* No match with Requested Device Type */
97c5b3c4 1840 p2p_parse_free(&msg);
b22128ef
JM		 1841 return;
1842 }
97c5b3c4 1843 p2p_parse_free(&msg);
b22128ef
JM		 1844
1845 if (!p2p->cfg->send_probe_resp)
1846 return; /* Response generated elsewhere */
1847
1848 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1849 "P2P: Reply to P2P Probe Request in Listen state");
1850
1851 /*
1852 * We do not really have a specific BSS that this frame is advertising,
1853 * so build a frame that has some information in valid format. This is
1854 * really only used for discovery purposes, not to learn exact BSS
1855 * parameters.
1856 */
1857 ies = p2p_build_probe_resp_ies(p2p);
1858 if (ies == NULL)
1859 return;
1860
1861 buf = wpabuf_alloc(200 + wpabuf_len(ies));
1862 if (buf == NULL) {
1863 wpabuf_free(ies);
1864 return;
1865 }
1866
1867 resp = NULL;
1868 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
1869
1870 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
1871 (WLAN_FC_STYPE_PROBE_RESP << 4));
1872 os_memcpy(resp->da, addr, ETH_ALEN);
1873 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
1874 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
1875 resp->u.probe_resp.beacon_int = host_to_le16(100);
1876 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1877 resp->u.probe_resp.capab_info =
1878 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
1879 WLAN_CAPABILITY_PRIVACY |
1880 WLAN_CAPABILITY_SHORT_SLOT_TIME);
1881
1882 wpabuf_put_u8(buf, WLAN_EID_SSID);
1883 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
1884 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1885
1886 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
1887 wpabuf_put_u8(buf, 8);
1888 wpabuf_put_u8(buf, (60 / 5) | 0x80);
1889 wpabuf_put_u8(buf, 90 / 5);
1890 wpabuf_put_u8(buf, (120 / 5) | 0x80);
1891 wpabuf_put_u8(buf, 180 / 5);
1892 wpabuf_put_u8(buf, (240 / 5) | 0x80);
1893 wpabuf_put_u8(buf, 360 / 5);
1894 wpabuf_put_u8(buf, 480 / 5);
1895 wpabuf_put_u8(buf, 540 / 5);
1896
1897 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
1898 wpabuf_put_u8(buf, 1);
1899 wpabuf_put_u8(buf, p2p->cfg->channel);
1900
1901 wpabuf_put_buf(buf, ies);
1902 wpabuf_free(ies);
1903
1904 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
1905
1906 wpabuf_free(buf);
1907}
1908
1909
04a85e44
JM		 1910int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1911 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1912{
1913 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
1914
04a85e44 1915 p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 1916
1917 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
1918 p2p->go_neg_peer &&
c5db8e51
KRK		 1919 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
1920 == 0) {
b22128ef
JM		 1921 /* Received a Probe Request from GO Negotiation peer */
1922 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1923 "P2P: Found GO Negotiation peer - try to start GO "
1924 "negotiation from timeout");
1925 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
1926 return 1;
1927 }
1928
1929 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
1930 p2p->invite_peer &&
c5db8e51
KRK		 1931 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
1932 == 0) {
b22128ef
JM		 1933 /* Received a Probe Request from Invite peer */
1934 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1935 "P2P: Found Invite peer - try to start Invite from "
1936 "timeout");
1937 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
1938 return 1;
1939 }
1940
1941 return 0;
1942}
1943
1944
1945static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 1946 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 1947{
1948 struct wpabuf *tmp;
1949 u8 *lpos;
1950 size_t tmplen;
1951 int res;
72044390 1952 u8 group_capab;
b22128ef 1953
4c08c0bd
JM		 1954 if (p2p_ie == NULL)
1955 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 1956
1957 /*
1958 * (Re)Association Request - P2P IE
1959 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 1960 * P2P Interface attribute (present if concurrent device and
1961 * P2P Management is enabled)
b22128ef
JM		 1962 */
1963 tmp = wpabuf_alloc(200);
1964 if (tmp == NULL)
1965 return -1;
1966
1967 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 1968 group_capab = 0;
1969 if (p2p->num_groups > 0) {
1970 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
1971 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1972 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
1973 p2p->cross_connect)
1974 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
1975 }
1976 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 1977 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1978 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 1979 p2p_buf_add_p2p_interface(tmp, p2p);
1980 p2p_buf_update_ie_hdr(tmp, lpos);
1981
1982 tmplen = wpabuf_len(tmp);
1983 if (tmplen > len)
1984 res = -1;
1985 else {
1986 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1987 res = tmplen;
1988 }
1989 wpabuf_free(tmp);
1990
1991 return res;
1992}
1993
1994
1995int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 1996 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 1997{
1998 struct wpabuf *tmp;
1999 u8 *lpos;
2000 struct p2p_device *peer;
2001 size_t tmplen;
2002 int res;
2003
2004 if (!p2p_group)
4c08c0bd 2005 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef
JM		 2006
2007 /*
2008 * (Re)Association Request - P2P IE
2009 * P2P Capability attribute (shall be present)
2010 * Extended Listen Timing (may be present)
2011 * P2P Device Info attribute (shall be present)
2012 */
2013 tmp = wpabuf_alloc(200);
2014 if (tmp == NULL)
2015 return -1;
2016
2017 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2018
2019 lpos = p2p_buf_add_ie_hdr(tmp);
2020 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2021 if (p2p->ext_listen_interval)
2022 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2023 p2p->ext_listen_interval);
b22128ef
JM		 2024 p2p_buf_add_device_info(tmp, p2p, peer);
2025 p2p_buf_update_ie_hdr(tmp, lpos);
2026
2027 tmplen = wpabuf_len(tmp);
2028 if (tmplen > len)
2029 res = -1;
2030 else {
2031 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2032 res = tmplen;
2033 }
2034 wpabuf_free(tmp);
2035
2036 return res;
2037}
2038
2039
2040int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2041{
2042 struct wpabuf *p2p_ie;
2043 int ret;
2044
2045 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2046 if (p2p_ie == NULL)
2047 return 0;
2048
2049 ret = p2p_attr_text(p2p_ie, buf, end);
2050 wpabuf_free(p2p_ie);
2051 return ret;
2052}
2053
2054
2055static void p2p_clear_go_neg(struct p2p_data *p2p)
2056{
2057 p2p->go_neg_peer = NULL;
2058 p2p_clear_timeout(p2p);
2059 p2p_set_state(p2p, P2P_IDLE);
2060}
2061
2062
2063void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2064{
2065 if (p2p->go_neg_peer == NULL) {
2066 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2067 "P2P: No pending Group Formation - "
2068 "ignore WPS registration success notification");
2069 return; /* No pending Group Formation */
2070 }
2071
2072 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2073 0) {
2074 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2075 "P2P: Ignore WPS registration success notification "
2076 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
2077 MAC2STR(mac_addr),
2078 MAC2STR(p2p->go_neg_peer->intended_addr));
2079 return; /* Ignore unexpected peer address */
2080 }
2081
2082 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2083 "P2P: Group Formation completed successfully with " MACSTR,
2084 MAC2STR(mac_addr));
2085
2086 p2p_clear_go_neg(p2p);
2087}
2088
2089
2090void p2p_group_formation_failed(struct p2p_data *p2p)
2091{
2092 if (p2p->go_neg_peer == NULL) {
2093 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2094 "P2P: No pending Group Formation - "
2095 "ignore group formation failure notification");
2096 return; /* No pending Group Formation */
2097 }
2098
2099 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2100 "P2P: Group Formation failed with " MACSTR,
2101 MAC2STR(p2p->go_neg_peer->intended_addr));
2102
2103 p2p_clear_go_neg(p2p);
2104}
2105
2106
2107struct p2p_data * p2p_init(const struct p2p_config *cfg)
2108{
2109 struct p2p_data *p2p;
2110
2111 if (cfg->max_peers < 1)
2112 return NULL;
2113
2114 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2115 if (p2p == NULL)
2116 return NULL;
2117 p2p->cfg = (struct p2p_config *) (p2p + 1);
2118 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2119 if (cfg->dev_name)
2120 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2121 if (cfg->manufacturer)
2122 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2123 if (cfg->model_name)
2124 p2p->cfg->model_name = os_strdup(cfg->model_name);
2125 if (cfg->model_number)
2126 p2p->cfg->model_number = os_strdup(cfg->model_number);
2127 if (cfg->serial_number)
2128 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
b22128ef
JM		 2129
2130 p2p->min_disc_int = 1;
2131 p2p->max_disc_int = 3;
2132
2133 os_get_random(&p2p->next_tie_breaker, 1);
2134 p2p->next_tie_breaker &= 0x01;
2135 if (cfg->sd_request)
2136 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2137 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2138 if (cfg->concurrent_operations)
2139 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2140 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2141
2142 dl_list_init(&p2p->devices);
2143
2144 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2145 p2p_expiration_timeout, p2p, NULL);
2146
2147 return p2p;
2148}
2149
2150
2151void p2p_deinit(struct p2p_data *p2p)
2152{
2153 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2154 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2155 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2156 p2p_flush(p2p);
046ef4aa 2157 p2p_free_req_dev_types(p2p);
b22128ef 2158 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2159 os_free(p2p->cfg->manufacturer);
2160 os_free(p2p->cfg->model_name);
2161 os_free(p2p->cfg->model_number);
2162 os_free(p2p->cfg->serial_number);
b22128ef 2163 os_free(p2p->groups);
18708aad 2164 wpabuf_free(p2p->sd_resp);
3f9285ff 2165 os_free(p2p->after_scan_tx);
f95cac27 2166 p2p_remove_wps_vendor_extensions(p2p);
b22128ef
JM		 2167 os_free(p2p);
2168}
2169
2170
2171void p2p_flush(struct p2p_data *p2p)
2172{
2173 struct p2p_device *dev, *prev;
2174 p2p_clear_timeout(p2p);
2175 p2p_set_state(p2p, P2P_IDLE);
2176 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
2177 p2p->go_neg_peer = NULL;
2178 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
2179 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2180 list) {
2181 dl_list_del(&dev->list);
2182 p2p_device_free(p2p, dev);
2183 }
2184 p2p_free_sd_queries(p2p);
f44ae207
JM		 2185 os_free(p2p->after_scan_tx);
2186 p2p->after_scan_tx = NULL;
b22128ef
JM		 2187}
2188
2189
9d562b79
SS		 2190int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2191{
2192 struct p2p_device *dev;
2193
2194 dev = p2p_get_device(p2p, addr);
2195 if (dev == NULL)
2196 return -1;
2197
2198 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Unauthorizing " MACSTR,
2199 MAC2STR(addr));
2200
2201 if (p2p->go_neg_peer == dev)
2202 p2p->go_neg_peer = NULL;
2203
2204 dev->wps_method = WPS_NOT_READY;
2205 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2206 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2207
2208 /* Check if after_scan_tx is for this peer. If so free it */
2209 if (p2p->after_scan_tx &&
2210 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2211 os_free(p2p->after_scan_tx);
2212 p2p->after_scan_tx = NULL;
2213 }
2214
2215 return 0;
2216}
2217
2218
b22128ef
JM		 2219int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2220{
2221 os_free(p2p->cfg->dev_name);
2222 if (dev_name) {
2223 p2p->cfg->dev_name = os_strdup(dev_name);
2224 if (p2p->cfg->dev_name == NULL)
2225 return -1;
2226 } else
2227 p2p->cfg->dev_name = NULL;
2228 return 0;
2229}
2230
2231
b6e01800
JM		 2232int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2233{
2234 os_free(p2p->cfg->manufacturer);
2235 p2p->cfg->manufacturer = NULL;
2236 if (manufacturer) {
2237 p2p->cfg->manufacturer = os_strdup(manufacturer);
2238 if (p2p->cfg->manufacturer == NULL)
2239 return -1;
2240 }
2241
2242 return 0;
2243}
2244
2245
2246int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2247{
2248 os_free(p2p->cfg->model_name);
2249 p2p->cfg->model_name = NULL;
2250 if (model_name) {
2251 p2p->cfg->model_name = os_strdup(model_name);
2252 if (p2p->cfg->model_name == NULL)
2253 return -1;
2254 }
2255
2256 return 0;
2257}
2258
2259
2260int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2261{
2262 os_free(p2p->cfg->model_number);
2263 p2p->cfg->model_number = NULL;
2264 if (model_number) {
2265 p2p->cfg->model_number = os_strdup(model_number);
2266 if (p2p->cfg->model_number == NULL)
2267 return -1;
2268 }
2269
2270 return 0;
2271}
2272
2273
2274int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2275{
2276 os_free(p2p->cfg->serial_number);
2277 p2p->cfg->serial_number = NULL;
2278 if (serial_number) {
2279 p2p->cfg->serial_number = os_strdup(serial_number);
2280 if (p2p->cfg->serial_number == NULL)
2281 return -1;
2282 }
2283
2284 return 0;
2285}
2286
2287
2288void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2289{
2290 p2p->cfg->config_methods = config_methods;
2291}
2292
2293
2294void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2295{
2296 os_memcpy(p2p->cfg->uuid, uuid, 16);
2297}
2298
2299
b22128ef
JM		 2300int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2301{
2302 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2303 return 0;
2304}
2305
2306
2307int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2308 size_t num_dev_types)
2309{
2310 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2311 num_dev_types = P2P_SEC_DEVICE_TYPES;
2312 p2p->cfg->num_sec_dev_types = num_dev_types;
2313 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2314 return 0;
2315}
2316
2317
f95cac27
JMB		 2318void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2319{
2320 int i;
2321
10c5d2a5 2322 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2323 wpabuf_free(p2p->wps_vendor_ext[i]);
2324 p2p->wps_vendor_ext[i] = NULL;
2325 }
2326}
2327
2328
2329int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2330 const struct wpabuf *vendor_ext)
2331{
2332 int i;
2333
2334 if (vendor_ext == NULL)
2335 return -1;
2336
10c5d2a5 2337 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2338 if (p2p->wps_vendor_ext[i] == NULL)
2339 break;
2340 }
10c5d2a5 2341 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2342 return -1;
2343
2344 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2345 if (p2p->wps_vendor_ext[i] == NULL)
2346 return -1;
2347
2348 return 0;
2349}
2350
2351
b22128ef
JM		 2352int p2p_set_country(struct p2p_data *p2p, const char *country)
2353{
2354 os_memcpy(p2p->cfg->country, country, 3);
2355 return 0;
2356}
2357
2358
2359void p2p_continue_find(struct p2p_data *p2p)
2360{
2361 struct p2p_device *dev;
2362 p2p_set_state(p2p, P2P_SEARCH);
2363 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2364 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2365 if (p2p_start_sd(p2p, dev) == 0)
2366 return;
2367 else
2368 break;
10c4edde
JM		 2369 } else if (dev->req_config_methods &&
2370 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
2371 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2372 "pending Provision Discovery Request to "
10c4edde 2373 MACSTR " (config methods 0x%x)",
c5db8e51 2374 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2375 dev->req_config_methods);
1ef2f7ff 2376 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2377 return;
2378 }
2379 }
2380
2381 p2p_listen_in_find(p2p);
2382}
2383
2384
2385static void p2p_sd_cb(struct p2p_data *p2p, int success)
2386{
2387 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2388 "P2P: Service Discovery Query TX callback: success=%d",
2389 success);
2390 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2391
2392 if (!success) {
2393 if (p2p->sd_peer) {
2394 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2395 p2p->sd_peer = NULL;
2396 }
2397 p2p_continue_find(p2p);
2398 return;
2399 }
2400
2401 if (p2p->sd_peer == NULL) {
2402 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2403 "P2P: No SD peer entry known");
2404 p2p_continue_find(p2p);
2405 return;
2406 }
2407
2408 /* Wait for response from the peer */
2409 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2410 p2p_set_timeout(p2p, 0, 200000);
2411}
2412
6b56cc2d
JS		 2413
2414/**
2415 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2416 * @p2p: P2P module context from p2p_init()
2417 */
19df9b07 2418static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2419{
2420 struct p2p_device *dev;
2421
2422 if (p2p->state != P2P_IDLE)
2423 return;
2424
2425 /*
2426 * Retry the prov disc req attempt only for the peer that the user had
2427 * requested for and provided a join has not been initiated on it
2428 * in the meantime.
2429 */
2430
2431 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2432 if (os_memcmp(p2p->pending_pd_devaddr,
2433 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2434 continue;
2435 if (!dev->req_config_methods)
2436 continue;
2437 if (dev->flags & P2P_DEV_PD_FOR_JOIN)
2438 continue;
2439
2440 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
e3a0706b 2441 "pending Provision Discovery Request to "
6b56cc2d
JS		 2442 MACSTR " (config methods 0x%x)",
2443 MAC2STR(dev->info.p2p_device_addr),
2444 dev->req_config_methods);
1ef2f7ff 2445 p2p_send_prov_disc_req(p2p, dev, 0, 0);
6b56cc2d
JS		 2446 return;
2447 }
2448}
2449
2450
b22128ef
JM		 2451static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2452{
2453 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2454 "P2P: Provision Discovery Request TX callback: success=%d",
2455 success);
6b56cc2d
JS		 2456
2457 /*
2458 * Postpone resetting the pending action state till after we actually
2459 * time out. This allows us to take some action like notifying any
2460 * interested parties about no response to the request.
2461 *
2462 * When the timer (below) goes off we check in IDLE, SEARCH, or
2463 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2464 * requests in, if this was still pending and then raise notification.
2465 */
b22128ef
JM		 2466
2467 if (!success) {
6b56cc2d
JS		 2468 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2469
b22128ef
JM		 2470 if (p2p->state != P2P_IDLE)
2471 p2p_continue_find(p2p);
6b56cc2d
JS		 2472 else if (p2p->user_initiated_pd) {
2473 p2p->pending_action_state = P2P_PENDING_PD;
2474 p2p_set_timeout(p2p, 0, 300000);
2475 }
b22128ef
JM		 2476 return;
2477 }
2478
6b56cc2d
JS		 2479 /*
2480 * This postponing, of resetting pending_action_state, needs to be
2481 * done only for user initiated PD requests and not internal ones.
2482 */
2483 if (p2p->user_initiated_pd)
2484 p2p->pending_action_state = P2P_PENDING_PD;
2485 else
2486 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2487
b22128ef
JM		 2488 /* Wait for response from the peer */
2489 if (p2p->state == P2P_SEARCH)
2490 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2491 p2p_set_timeout(p2p, 0, 200000);
2492}
2493
2494
2495int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
2496 int level, const u8 *ies, size_t ies_len)
2497{
2498 p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
2499
2500 if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
c5db8e51
KRK		 2501 os_memcmp(p2p->go_neg_peer->info.p2p_device_addr, bssid, ETH_ALEN)
2502 == 0) {
b22128ef
JM		 2503 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2504 "P2P: Found GO Negotiation peer - try to start GO "
2505 "negotiation");
2506 p2p_connect_send(p2p, p2p->go_neg_peer);
2507 return 1;
2508 }
2509
2510 return 0;
2511}
2512
2513
2514void p2p_scan_res_handled(struct p2p_data *p2p)
2515{
2516 if (!p2p->p2p_scan_running) {
2517 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
2518 "running, but scan results received");
2519 }
2520 p2p->p2p_scan_running = 0;
2521 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2522
2523 if (p2p_run_after_scan(p2p))
2524 return;
2525 if (p2p->state == P2P_SEARCH)
2526 p2p_continue_find(p2p);
2527}
2528
2529
2530void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies)
2531{
2532 u8 *len = p2p_buf_add_ie_hdr(ies);
2533 p2p_buf_add_capability(ies, p2p->dev_capab, 0);
2534 if (p2p->cfg->reg_class && p2p->cfg->channel)
2535 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2536 p2p->cfg->reg_class,
2537 p2p->cfg->channel);
2538 if (p2p->ext_listen_interval)
2539 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2540 p2p->ext_listen_interval);
2541 /* TODO: p2p_buf_add_operating_channel() if GO */
2542 p2p_buf_update_ie_hdr(ies, len);
2543}
2544
2545
206e1f42
JM		 2546size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2547{
2548 return 100;
2549}
2550
2551
b22128ef
JM		 2552int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2553{
2554 return p2p_attr_text(p2p_ie, buf, end);
2555}
2556
2557
2558static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2559{
2560 struct p2p_device *dev = p2p->go_neg_peer;
2561
2562 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2563 "P2P: GO Negotiation Request TX callback: success=%d",
2564 success);
2565
2566 if (dev == NULL) {
2567 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2568 "P2P: No pending GO Negotiation");
2569 return;
2570 }
2571
2572 if (success) {
2573 dev->go_neg_req_sent++;
2574 if (dev->flags & P2P_DEV_USER_REJECTED) {
2575 p2p_set_state(p2p, P2P_IDLE);
2576 return;
2577 }
2578 }
2579
2580 if (!success &&
c5db8e51 2581 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef
JM		 2582 !is_zero_ether_addr(dev->member_in_go_dev)) {
2583 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2584 "P2P: Peer " MACSTR " did not acknowledge request - "
2585 "try to use device discoverability through its GO",
c5db8e51 2586 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2587 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2588 p2p_send_dev_disc_req(p2p, dev);
2589 return;
2590 }
2591
2592 /*
2593 * Use P2P find, if needed, to find the other device from its listen
2594 * channel.
2595 */
2596 p2p_set_state(p2p, P2P_CONNECT);
2597 p2p_set_timeout(p2p, 0, 100000);
2598}
2599
2600
2601static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2602{
2603 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2604 "P2P: GO Negotiation Response TX callback: success=%d",
2605 success);
2606 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2607 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2608 "P2P: Ignore TX callback event - GO Negotiation is "
2609 "not running anymore");
2610 return;
2611 }
2612 p2p_set_state(p2p, P2P_CONNECT);
2613 p2p_set_timeout(p2p, 0, 100000);
2614}
2615
2616
2617static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2618{
2619 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2620 "P2P: GO Negotiation Response (failure) TX callback: "
2621 "success=%d", success);
fbe70272
JM		 2622 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2623 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2624 p2p->go_neg_peer->status);
2625 }
b22128ef
JM		 2626}
2627
2628
93b7ddd0
JM		 2629static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2630 enum p2p_send_action_result result)
b22128ef
JM		 2631{
2632 struct p2p_device *dev;
2633
2634 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
93b7ddd0
JM		 2635 "P2P: GO Negotiation Confirm TX callback: result=%d",
2636 result);
b22128ef 2637 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2638 if (result == P2P_SEND_ACTION_FAILED) {
2639 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2640 return;
2641 }
2642 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2643 /*
2644 * It looks like the TX status for GO Negotiation Confirm is
2645 * often showing failure even when the peer has actually
2646 * received the frame. Since the peer may change channels
2647 * immediately after having received the frame, we may not see
2648 * an Ack for retries, so just dropping a single frame may
2649 * trigger this. To allow the group formation to succeed if the
2650 * peer did indeed receive the frame, continue regardless of
2651 * the TX status.
2652 */
2653 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2654 "P2P: Assume GO Negotiation Confirm TX was actually "
2655 "received by the peer even though Ack was not "
2656 "reported");
2657 }
2658
2659 dev = p2p->go_neg_peer;
2660 if (dev == NULL)
2661 return;
2662
2663 p2p_go_complete(p2p, dev);
2664}
2665
2666
2667void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2668 const u8 *src, const u8 *bssid,
2669 enum p2p_send_action_result result)
b22128ef
JM		 2670{
2671 enum p2p_pending_action_state state;
93b7ddd0 2672 int success;
b22128ef
JM		 2673
2674 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2675 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2676 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2677 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2678 MAC2STR(bssid), result);
2679 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2680 state = p2p->pending_action_state;
2681 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2682 switch (state) {
2683 case P2P_NO_PENDING_ACTION:
2684 break;
2685 case P2P_PENDING_GO_NEG_REQUEST:
2686 p2p_go_neg_req_cb(p2p, success);
2687 break;
2688 case P2P_PENDING_GO_NEG_RESPONSE:
2689 p2p_go_neg_resp_cb(p2p, success);
2690 break;
2691 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2692 p2p_go_neg_resp_failure_cb(p2p, success);
2693 break;
2694 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2695 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 2696 break;
2697 case P2P_PENDING_SD:
2698 p2p_sd_cb(p2p, success);
2699 break;
2700 case P2P_PENDING_PD:
2701 p2p_prov_disc_cb(p2p, success);
2702 break;
2703 case P2P_PENDING_INVITATION_REQUEST:
2704 p2p_invitation_req_cb(p2p, success);
2705 break;
2706 case P2P_PENDING_INVITATION_RESPONSE:
2707 p2p_invitation_resp_cb(p2p, success);
2708 break;
2709 case P2P_PENDING_DEV_DISC_REQUEST:
2710 p2p_dev_disc_req_cb(p2p, success);
2711 break;
2712 case P2P_PENDING_DEV_DISC_RESPONSE:
2713 p2p_dev_disc_resp_cb(p2p, success);
2714 break;
2715 case P2P_PENDING_GO_DISC_REQ:
2716 p2p_go_disc_req_cb(p2p, success);
2717 break;
2718 }
2719}
2720
2721
2722void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2723 unsigned int duration)
2724{
2725 if (freq == p2p->pending_client_disc_freq) {
2726 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2727 "P2P: Client discoverability remain-awake completed");
2728 p2p->pending_client_disc_freq = 0;
2729 return;
2730 }
2731
2732 if (freq != p2p->pending_listen_freq) {
2733 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2734 "P2P: Unexpected listen callback for freq=%u "
2735 "duration=%u (pending_listen_freq=%u)",
2736 freq, duration, p2p->pending_listen_freq);
2737 return;
2738 }
2739
2740 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2741 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2742 "callback",
2743 p2p->pending_listen_sec, p2p->pending_listen_usec,
2744 p2p->pending_listen_freq);
2745 p2p->in_listen = 1;
0b8889d8 2746 p2p->drv_in_listen = freq;
b22128ef
JM		 2747 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
2748 /*
2749 * Add 20 msec extra wait to avoid race condition with driver
2750 * remain-on-channel end event, i.e., give driver more time to
2751 * complete the operation before our timeout expires.
2752 */
2753 p2p_set_timeout(p2p, p2p->pending_listen_sec,
2754 p2p->pending_listen_usec + 20000);
2755 }
2756
2757 p2p->pending_listen_freq = 0;
2758}
2759
2760
2761int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
2762{
2763 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
2764 "state (freq=%u)", freq);
2765 p2p->drv_in_listen = 0;
2766 if (p2p->in_listen)
2767 return 0; /* Internal timeout will trigger the next step */
2768
2769 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c
JM		 2770 if (p2p->go_neg_peer->connect_reqs >= 120) {
2771 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2772 "P2P: Timeout on sending GO Negotiation "
2773 "Request without getting response");
2774 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2775 return 0;
2776 }
2777
b22128ef
JM		 2778 p2p_set_state(p2p, P2P_CONNECT);
2779 p2p_connect_send(p2p, p2p->go_neg_peer);
2780 return 1;
2781 } else if (p2p->state == P2P_SEARCH) {
2782 p2p_search(p2p);
2783 return 1;
2784 }
2785
2786 return 0;
2787}
2788
2789
2790static void p2p_timeout_connect(struct p2p_data *p2p)
2791{
2792 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2793 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
2794 p2p_listen_in_find(p2p);
2795}
2796
2797
2798static void p2p_timeout_connect_listen(struct p2p_data *p2p)
2799{
2800 if (p2p->go_neg_peer) {
2801 if (p2p->drv_in_listen) {
2802 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
2803 "still in Listen state; wait for it to "
2804 "complete");
2805 return;
2806 }
9dac8c3e
FM		 2807
2808 if (p2p->go_neg_peer->connect_reqs >= 120) {
2809 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2810 "P2P: Timeout on sending GO Negotiation "
2811 "Request without getting response");
2812 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2813 return;
2814 }
2815
b22128ef
JM		 2816 p2p_set_state(p2p, P2P_CONNECT);
2817 p2p_connect_send(p2p, p2p->go_neg_peer);
2818 } else
2819 p2p_set_state(p2p, P2P_IDLE);
2820}
2821
2822
2823static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
2824{
2825 /*
2826 * TODO: could remain constantly in Listen state for some time if there
2827 * are no other concurrent uses for the radio. For now, go to listen
2828 * state once per second to give other uses a chance to use the radio.
2829 */
2830 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
d58ed4e3 2831 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 2832}
2833
2834
2835static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
2836{
2837 struct p2p_device *dev = p2p->go_neg_peer;
2838
2839 if (dev == NULL) {
2840 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2841 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2842 return;
2843 }
2844
2845 dev->wait_count++;
2846 if (dev->wait_count >= 120) {
2847 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2848 "P2P: Timeout on waiting peer to become ready for GO "
2849 "Negotiation");
2850 p2p_go_neg_failed(p2p, dev, -1);
2851 return;
2852 }
2853
2854 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2855 "P2P: Go to Listen state while waiting for the peer to become "
2856 "ready for GO Negotiation");
2857 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
2858 p2p_listen_in_find(p2p);
2859}
2860
2861
2862static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
2863{
2864 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2865 "P2P: Service Discovery Query timeout");
2866 if (p2p->sd_peer) {
2867 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2868 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2869 p2p->sd_peer = NULL;
2870 }
2871 p2p_continue_find(p2p);
2872}
2873
2874
2875static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
2876{
2877 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2878 "P2P: Provision Discovery Request timeout");
2879 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2880 p2p_continue_find(p2p);
2881}
2882
2883
6b56cc2d
JS		 2884static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
2885{
2886 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2887
2888 /*
2889 * For user initiated PD requests that we have not gotten any responses
2890 * for while in IDLE state, we retry them a couple of times before
2891 * giving up.
2892 */
2893 if (!p2p->user_initiated_pd)
2894 return;
2895
2896 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2897 "P2P: User initiated Provision Discovery Request timeout");
2898
2899 if (p2p->pd_retries) {
2900 p2p->pd_retries--;
2901 p2p_retry_pd(p2p);
2902 } else {
349b213c
JS		 2903 if (p2p->cfg->prov_disc_fail)
2904 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
2905 p2p->pending_pd_devaddr,
2906 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 2907 p2p_reset_pending_pd(p2p);
2908 }
2909}
2910
2911
b22128ef
JM		 2912static void p2p_timeout_invite(struct p2p_data *p2p)
2913{
2914 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2915 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 2916 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
2917 /*
2918 * Better remain on operating channel instead of listen channel
2919 * when running a group.
2920 */
2921 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
2922 "active GO role - wait on operating channel");
2923 p2p_set_timeout(p2p, 0, 100000);
2924 return;
2925 }
b22128ef
JM		 2926 p2p_listen_in_find(p2p);
2927}
2928
2929
2930static void p2p_timeout_invite_listen(struct p2p_data *p2p)
2931{
2932 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
2933 p2p_set_state(p2p, P2P_INVITE);
2934 p2p_invite_send(p2p, p2p->invite_peer,
2935 p2p->invite_go_dev_addr);
2936 } else {
2937 if (p2p->invite_peer) {
2938 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2939 "P2P: Invitation Request retry limit reached");
2940 if (p2p->cfg->invitation_result)
2941 p2p->cfg->invitation_result(
2942 p2p->cfg->cb_ctx, -1, NULL);
2943 }
2944 p2p_set_state(p2p, P2P_IDLE);
2945 }
2946}
2947
2948
2949static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
2950{
2951 struct p2p_data *p2p = eloop_ctx;
2952
2953 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
2954 p2p_state_txt(p2p->state));
2955
2956 p2p->in_listen = 0;
2957
2958 switch (p2p->state) {
2959 case P2P_IDLE:
6b56cc2d
JS		 2960 /* Check if we timed out waiting for PD req */
2961 if (p2p->pending_action_state == P2P_PENDING_PD)
2962 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 2963 break;
2964 case P2P_SEARCH:
6b56cc2d
JS		 2965 /* Check if we timed out waiting for PD req */
2966 if (p2p->pending_action_state == P2P_PENDING_PD)
2967 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 2968 p2p_search(p2p);
2969 break;
2970 case P2P_CONNECT:
2971 p2p_timeout_connect(p2p);
2972 break;
2973 case P2P_CONNECT_LISTEN:
2974 p2p_timeout_connect_listen(p2p);
2975 break;
2976 case P2P_GO_NEG:
2977 break;
2978 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 2979 /* Check if we timed out waiting for PD req */
2980 if (p2p->pending_action_state == P2P_PENDING_PD)
2981 p2p_timeout_prov_disc_req(p2p);
2982
b22128ef
JM		 2983 if (p2p->ext_listen_only) {
2984 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2985 "P2P: Extended Listen Timing - Listen State "
2986 "completed");
2987 p2p->ext_listen_only = 0;
2988 p2p_set_state(p2p, P2P_IDLE);
2989 }
2990 break;
2991 case P2P_WAIT_PEER_CONNECT:
2992 p2p_timeout_wait_peer_connect(p2p);
2993 break;
2994 case P2P_WAIT_PEER_IDLE:
2995 p2p_timeout_wait_peer_idle(p2p);
2996 break;
2997 case P2P_SD_DURING_FIND:
2998 p2p_timeout_sd_during_find(p2p);
2999 break;
3000 case P2P_PROVISIONING:
3001 break;
3002 case P2P_PD_DURING_FIND:
3003 p2p_timeout_prov_disc_during_find(p2p);
3004 break;
3005 case P2P_INVITE:
3006 p2p_timeout_invite(p2p);
3007 break;
3008 case P2P_INVITE_LISTEN:
3009 p2p_timeout_invite_listen(p2p);
3010 break;
39185dfa
JM		 3011 case P2P_SEARCH_WHEN_READY:
3012 break;
b22128ef
JM		 3013 }
3014}
3015
3016
3017int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3018{
3019 struct p2p_device *dev;
3020
3021 dev = p2p_get_device(p2p, peer_addr);
3022 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
3023 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
3024 if (dev == NULL) {
3025 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
3026 " unknown", MAC2STR(peer_addr));
3027 return -1;
3028 }
3029 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3030 dev->flags |= P2P_DEV_USER_REJECTED;
3031 return 0;
3032}
3033
3034
e5a359cf 3035const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3036{
3037 switch (method) {
3038 case WPS_NOT_READY:
3039 return "not-ready";
b22128ef
JM		 3040 case WPS_PIN_DISPLAY:
3041 return "Display";
3042 case WPS_PIN_KEYPAD:
3043 return "Keypad";
3044 case WPS_PBC:
3045 return "PBC";
3046 }
3047
3048 return "??";
3049}
3050
3051
3052static const char * p2p_go_state_text(enum p2p_go_state go_state)
3053{
3054 switch (go_state) {
3055 case UNKNOWN_GO:
3056 return "unknown";
3057 case LOCAL_GO:
3058 return "local";
3059 case REMOTE_GO:
3060 return "remote";
3061 }
3062
3063 return "??";
3064}
3065
3066
3067int p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next,
3068 char *buf, size_t buflen)
3069{
3070 struct p2p_device *dev;
3071 int res;
3072 char *pos, *end;
3073 struct os_time now;
3074 char devtype[WPS_DEV_TYPE_BUFSIZE];
3075
3076 if (addr)
3077 dev = p2p_get_device(p2p, addr);
3078 else
3079 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3080
3081 if (dev && next) {
3082 dev = dl_list_first(&dev->list, struct p2p_device, list);
3083 if (&dev->list == &p2p->devices)
3084 dev = NULL;
3085 }
3086
3087 if (dev == NULL)
3088 return -1;
3089
3090 pos = buf;
3091 end = buf + buflen;
3092
3093 res = os_snprintf(pos, end - pos, MACSTR "\n",
c5db8e51 3094 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 3095 if (res < 0 || res >= end - pos)
3096 return pos - buf;
3097 pos += res;
3098
3099 os_get_time(&now);
3100 res = os_snprintf(pos, end - pos,
3101 "age=%d\n"
3102 "listen_freq=%d\n"
3103 "level=%d\n"
3104 "wps_method=%s\n"
3105 "interface_addr=" MACSTR "\n"
3106 "member_in_go_dev=" MACSTR "\n"
3107 "member_in_go_iface=" MACSTR "\n"
3108 "pri_dev_type=%s\n"
3109 "device_name=%s\n"
b67d0d9e
JM		 3110 "manufacturer=%s\n"
3111 "model_name=%s\n"
3112 "model_number=%s\n"
3113 "serial_number=%s\n"
b22128ef
JM		 3114 "config_methods=0x%x\n"
3115 "dev_capab=0x%x\n"
3116 "group_capab=0x%x\n"
3117 "go_neg_req_sent=%d\n"
3118 "go_state=%s\n"
3119 "dialog_token=%u\n"
3120 "intended_addr=" MACSTR "\n"
3121 "country=%c%c\n"
3122 "oper_freq=%d\n"
3123 "req_config_methods=0x%x\n"
10c4edde 3124 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3125 "status=%d\n"
3126 "wait_count=%u\n"
3127 "invitation_reqs=%u\n",
3128 (int) (now.sec - dev->last_seen.sec),
3129 dev->listen_freq,
6402fc43 3130 dev->info.level,
b22128ef
JM		 3131 p2p_wps_method_text(dev->wps_method),
3132 MAC2STR(dev->interface_addr),
3133 MAC2STR(dev->member_in_go_dev),
3134 MAC2STR(dev->member_in_go_iface),
c5db8e51 3135 wps_dev_type_bin2str(dev->info.pri_dev_type,
b22128ef 3136 devtype, sizeof(devtype)),
c5db8e51 3137 dev->info.device_name,
b67d0d9e
JM		 3138 dev->info.manufacturer,
3139 dev->info.model_name,
3140 dev->info.model_number,
3141 dev->info.serial_number,
c5db8e51
KRK		 3142 dev->info.config_methods,
3143 dev->info.dev_capab,
3144 dev->info.group_capab,
b22128ef
JM		 3145 dev->go_neg_req_sent,
3146 p2p_go_state_text(dev->go_state),
3147 dev->dialog_token,
3148 MAC2STR(dev->intended_addr),
3149 dev->country[0] ? dev->country[0] : '_',
3150 dev->country[1] ? dev->country[1] : '_',
3151 dev->oper_freq,
3152 dev->req_config_methods,
3153 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3154 "[PROBE_REQ_ONLY]" : "",
3155 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3156 dev->flags & P2P_DEV_NOT_YET_READY ?
3157 "[NOT_YET_READY]" : "",
3158 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3159 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3160 "",
3161 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3162 "[PD_PEER_DISPLAY]" : "",
3163 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3164 "[PD_PEER_KEYPAD]" : "",
3165 dev->flags & P2P_DEV_USER_REJECTED ?
3166 "[USER_REJECTED]" : "",
3167 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3168 "[PEER_WAITING_RESPONSE]" : "",
3169 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3170 "[PREFER_PERSISTENT_GROUP]" : "",
3171 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3172 "[WAIT_GO_NEG_RESPONSE]" : "",
3173 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3174 "[WAIT_GO_NEG_CONFIRM]" : "",
3175 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3176 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3177 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3178 "[FORCE_FREQ]" : "",
3179 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3180 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3181 dev->status,
3182 dev->wait_count,
3183 dev->invitation_reqs);
3184 if (res < 0 || res >= end - pos)
3185 return pos - buf;
3186 pos += res;
3187
3188 if (dev->ext_listen_period) {
3189 res = os_snprintf(pos, end - pos,
3190 "ext_listen_period=%u\n"
3191 "ext_listen_interval=%u\n",
3192 dev->ext_listen_period,
3193 dev->ext_listen_interval);
3194 if (res < 0 || res >= end - pos)
3195 return pos - buf;
3196 pos += res;
3197 }
3198
3199 if (dev->oper_ssid_len) {
3200 res = os_snprintf(pos, end - pos,
3201 "oper_ssid=%s\n",
3202 wpa_ssid_txt(dev->oper_ssid,
3203 dev->oper_ssid_len));
3204 if (res < 0 || res >= end - pos)
3205 return pos - buf;
3206 pos += res;
3207 }
3208
3209 return pos - buf;
3210}
3211
3212
3213void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3214{
3215 if (enabled) {
3216 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3217 "discoverability enabled");
3218 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3219 } else {
3220 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
3221 "discoverability disabled");
3222 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3223 }
3224}
3225
3226
3227static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3228 u32 duration2, u32 interval2)
3229{
3230 struct wpabuf *req;
3231 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3232 u8 *len;
3233
3234 req = wpabuf_alloc(100);
3235 if (req == NULL)
3236 return NULL;
3237
3238 if (duration1 || interval1) {
3239 os_memset(&desc1, 0, sizeof(desc1));
3240 desc1.count_type = 1;
3241 desc1.duration = duration1;
3242 desc1.interval = interval1;
3243 ptr1 = &desc1;
3244
3245 if (duration2 || interval2) {
3246 os_memset(&desc2, 0, sizeof(desc2));
3247 desc2.count_type = 2;
3248 desc2.duration = duration2;
3249 desc2.interval = interval2;
3250 ptr2 = &desc2;
3251 }
3252 }
3253
3254 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3255 len = p2p_buf_add_ie_hdr(req);
3256 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3257 p2p_buf_update_ie_hdr(req, len);
3258
3259 return req;
3260}
3261
3262
3263int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3264 const u8 *own_interface_addr, unsigned int freq,
3265 u32 duration1, u32 interval1, u32 duration2,
3266 u32 interval2)
3267{
3268 struct wpabuf *req;
3269
3270 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
3271 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
3272 "int1=%u dur2=%u int2=%u",
3273 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3274 freq, duration1, interval1, duration2, interval2);
3275
3276 req = p2p_build_presence_req(duration1, interval1, duration2,
3277 interval2);
3278 if (req == NULL)
3279 return -1;
3280
3281 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3282 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3283 go_interface_addr,
3284 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
b22128ef
JM		 3285 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3286 "P2P: Failed to send Action frame");
3287 }
3288 wpabuf_free(req);
3289
3290 return 0;
3291}
3292
3293
3294static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3295 size_t noa_len, u8 dialog_token)
3296{
3297 struct wpabuf *resp;
3298 u8 *len;
3299
3300 resp = wpabuf_alloc(100 + noa_len);
3301 if (resp == NULL)
3302 return NULL;
3303
3304 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3305 len = p2p_buf_add_ie_hdr(resp);
3306 p2p_buf_add_status(resp, status);
3307 if (noa) {
3308 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3309 wpabuf_put_le16(resp, noa_len);
3310 wpabuf_put_data(resp, noa, noa_len);
3311 } else
3312 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3313 p2p_buf_update_ie_hdr(resp, len);
3314
3315 return resp;
3316}
3317
3318
3319static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3320 const u8 *sa, const u8 *data, size_t len,
3321 int rx_freq)
3322{
3323 struct p2p_message msg;
3324 u8 status;
3325 struct wpabuf *resp;
3326 size_t g;
3327 struct p2p_group *group = NULL;
3328 int parsed = 0;
3329 u8 noa[50];
3330 int noa_len;
3331
3332 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3333 "P2P: Received P2P Action - P2P Presence Request");
3334
3335 for (g = 0; g < p2p->num_groups; g++) {
3336 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3337 ETH_ALEN) == 0) {
3338 group = p2p->groups[g];
3339 break;
3340 }
3341 }
3342 if (group == NULL) {
3343 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3344 "P2P: Ignore P2P Presence Request for unknown group "
3345 MACSTR, MAC2STR(da));
3346 return;
3347 }
3348
3349 if (p2p_parse(data, len, &msg) < 0) {
3350 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3351 "P2P: Failed to parse P2P Presence Request");
3352 status = P2P_SC_FAIL_INVALID_PARAMS;
3353 goto fail;
3354 }
3355 parsed = 1;
3356
3357 if (msg.noa == NULL) {
3358 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3359 "P2P: No NoA attribute in P2P Presence Request");
3360 status = P2P_SC_FAIL_INVALID_PARAMS;
3361 goto fail;
3362 }
3363
3364 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3365
3366fail:
3367 if (p2p->cfg->get_noa)
3368 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3369 sizeof(noa));
3370 else
3371 noa_len = -1;
3372 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3373 noa_len > 0 ? noa_len : 0,
3374 msg.dialog_token);
3375 if (parsed)
3376 p2p_parse_free(&msg);
3377 if (resp == NULL)
3378 return;
3379
3380 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3381 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3382 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
b22128ef
JM		 3383 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3384 "P2P: Failed to send Action frame");
3385 }
3386 wpabuf_free(resp);
3387}
3388
3389
3390static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3391 const u8 *sa, const u8 *data, size_t len)
3392{
3393 struct p2p_message msg;
3394
3395 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3396 "P2P: Received P2P Action - P2P Presence Response");
3397
3398 if (p2p_parse(data, len, &msg) < 0) {
3399 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3400 "P2P: Failed to parse P2P Presence Response");
3401 return;
3402 }
3403
3404 if (msg.status == NULL || msg.noa == NULL) {
3405 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3406 "P2P: No Status or NoA attribute in P2P Presence "
3407 "Response");
3408 p2p_parse_free(&msg);
3409 return;
3410 }
3411
3412 if (*msg.status) {
3413 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3414 "P2P: P2P Presence Request was rejected: status %u",
3415 *msg.status);
3416 p2p_parse_free(&msg);
3417 return;
3418 }
3419
3420 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3421 "P2P: P2P Presence Request was accepted");
3422 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3423 msg.noa, msg.noa_len);
3424 /* TODO: process NoA */
3425 p2p_parse_free(&msg);
3426}
3427
3428
3429static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3430{
3431 struct p2p_data *p2p = eloop_ctx;
3432
3433 if (p2p->ext_listen_interval) {
3434 /* Schedule next extended listen timeout */
3435 eloop_register_timeout(p2p->ext_listen_interval_sec,
3436 p2p->ext_listen_interval_usec,
3437 p2p_ext_listen_timeout, p2p, NULL);
3438 }
3439
f7a69057
JM		 3440 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3441 /*
3442 * This should not really happen, but it looks like the Listen
3443 * command may fail is something else (e.g., a scan) was
3444 * running at an inconvenient time. As a workaround, allow new
3445 * Extended Listen operation to be started.
3446 */
3447 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
3448 "Extended Listen operation had not been completed - "
3449 "try again");
3450 p2p->ext_listen_only = 0;
3451 p2p_set_state(p2p, P2P_IDLE);
3452 }
3453
b22128ef
JM		 3454 if (p2p->state != P2P_IDLE) {
3455 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
3456 "Listen timeout in active state (%s)",
3457 p2p_state_txt(p2p->state));
3458 return;
3459 }
3460
3461 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
3462 p2p->ext_listen_only = 1;
3463 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
3464 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
3465 "Listen state for Extended Listen Timing");
3466 p2p->ext_listen_only = 0;
3467 }
3468}
3469
3470
3471int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3472 unsigned int interval)
3473{
3474 if (period > 65535 || interval > 65535 || period > interval ||
3475 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
3476 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3477 "P2P: Invalid Extended Listen Timing request: "
3478 "period=%u interval=%u", period, interval);
3479 return -1;
3480 }
3481
3482 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3483
3484 if (interval == 0) {
3485 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3486 "P2P: Disabling Extended Listen Timing");
3487 p2p->ext_listen_period = 0;
3488 p2p->ext_listen_interval = 0;
3489 return 0;
3490 }
3491
3492 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
3493 "P2P: Enabling Extended Listen Timing: period %u msec, "
3494 "interval %u msec", period, interval);
3495 p2p->ext_listen_period = period;
3496 p2p->ext_listen_interval = interval;
3497 p2p->ext_listen_interval_sec = interval / 1000;
3498 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3499
3500 eloop_register_timeout(p2p->ext_listen_interval_sec,
3501 p2p->ext_listen_interval_usec,
3502 p2p_ext_listen_timeout, p2p, NULL);
3503
3504 return 0;
3505}
3506
3507
3508void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3509 const u8 *ie, size_t ie_len)
3510{
3511 struct p2p_message msg;
3512
3513 if (bssid == NULL || ie == NULL)
3514 return;
3515
3516 os_memset(&msg, 0, sizeof(msg));
3517 if (p2p_parse_ies(ie, ie_len, &msg))
3518 return;
3519 if (msg.minor_reason_code == NULL)
3520 return;
3521
3522 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3523 "P2P: Deauthentication notification BSSID " MACSTR
3524 " reason_code=%u minor_reason_code=%u",
3525 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3526
3527 p2p_parse_free(&msg);
3528}
3529
3530
3531void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3532 const u8 *ie, size_t ie_len)
3533{
3534 struct p2p_message msg;
3535
3536 if (bssid == NULL || ie == NULL)
3537 return;
3538
3539 os_memset(&msg, 0, sizeof(msg));
3540 if (p2p_parse_ies(ie, ie_len, &msg))
3541 return;
3542 if (msg.minor_reason_code == NULL)
3543 return;
3544
3545 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
3546 "P2P: Disassociation notification BSSID " MACSTR
3547 " reason_code=%u minor_reason_code=%u",
3548 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3549
3550 p2p_parse_free(&msg);
3551}
3552
3553
3554void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3555{
3556 if (enabled) {
3557 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3558 "Device operations enabled");
3559 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3560 } else {
3561 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
3562 "Device operations disabled");
3563 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3564 }
3565}
3566
3567
3568int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3569{
3570 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
3571 return -1;
3572
3573 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
3574 "reg_class %u channel %u", reg_class, channel);
3575 p2p->cfg->reg_class = reg_class;
3576 p2p->cfg->channel = channel;
3577
3578 return 0;
3579}
3580
3581
3582int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3583{
3584 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
3585 if (postfix == NULL) {
3586 p2p->cfg->ssid_postfix_len = 0;
3587 return 0;
3588 }
3589 if (len > sizeof(p2p->cfg->ssid_postfix))
3590 return -1;
3591 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3592 p2p->cfg->ssid_postfix_len = len;
3593 return 0;
3594}
3595
3596
2463ba70
JS		 3597int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3598 int cfg_op_channel)
3599{
3600 if (p2p_channel_to_freq(p2p->cfg->country, op_reg_class, op_channel)
3601 < 0)
3602 return -1;
3603
3604 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, "P2P: Set Operating channel: "
3605 "reg_class %u channel %u", op_reg_class, op_channel);
3606 p2p->cfg->op_reg_class = op_reg_class;
3607 p2p->cfg->op_channel = op_channel;
3608 p2p->cfg->cfg_op_channel = cfg_op_channel;
3609 return 0;
3610}
3611
3612
b22128ef
JM		 3613int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3614 u8 *iface_addr)
3615{
3616 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3617 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3618 return -1;
3619 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3620 return 0;
3621}
80c9582a
JM		 3622
3623
4147a2cc
JM		 3624int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
3625 u8 *dev_addr)
3626{
3627 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3628 if (dev == NULL)
3629 return -1;
c5db8e51 3630 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 3631 return 0;
3632}
3633
3634
80c9582a
JM		 3635void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3636{
3637 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3638 if (is_zero_ether_addr(p2p->peer_filter))
3639 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3640 "filter");
3641 else
3642 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3643 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3644}
72044390
JM		 3645
3646
3647void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3648{
3649 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
3650 enabled ? "enabled" : "disabled");
3651 if (p2p->cross_connect == enabled)
3652 return;
3653 p2p->cross_connect = enabled;
3654 /* TODO: may need to tear down any action group where we are GO(?) */
3655}
f8d0131a
JM		 3656
3657
3658int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3659{
3660 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3661 if (dev == NULL)
3662 return -1;
3663 if (dev->oper_freq <= 0)
3664 return -1;
3665 return dev->oper_freq;
3666}
0f66abd2
SS		 3667
3668
3669void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
3670{
3671 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
3672 enabled ? "enabled" : "disabled");
3673 p2p->cfg->p2p_intra_bss = enabled;
3674}
b5c9da8d
JM		 3675
3676
3677void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
3678{
3679 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
3680 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
3681}
3f9285ff
JM		 3682
3683
3684int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
3685 const u8 *src, const u8 *bssid, const u8 *buf,
3686 size_t len, unsigned int wait_time)
3687{
3688 if (p2p->p2p_scan_running) {
3689 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
3690 "frame TX until p2p_scan completes");
3691 if (p2p->after_scan_tx) {
3692 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
3693 "previous pending Action frame TX");
3694 os_free(p2p->after_scan_tx);
3695 }
3696 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
3697 len);
3698 if (p2p->after_scan_tx == NULL)
3699 return -1;
3700 p2p->after_scan_tx->freq = freq;
3701 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
3702 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
3703 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
3704 p2p->after_scan_tx->len = len;
3705 p2p->after_scan_tx->wait_time = wait_time;
3706 os_memcpy(p2p->after_scan_tx + 1, buf, len);
3707 return 0;
3708 }
3709
3710 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
3711 buf, len, wait_time);
3712}
7cfc4ac3
AGS		 3713
3714
3715void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
3716 int freq_overall)
3717{
3718 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Best channel: 2.4 GHz: %d,"
3719 " 5 GHz: %d, overall: %d", freq_24, freq_5, freq_overall);
3720 p2p->best_freq_24 = freq_24;
3721 p2p->best_freq_5 = freq_5;
3722 p2p->best_freq_overall = freq_overall;
3723}
231bbd03
SS		 3724
3725
3726const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
3727{
3728 if (p2p == NULL || p2p->go_neg_peer == NULL)
3729 return NULL;
c5db8e51 3730 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 3731}
c165d81e
JB		 3732
3733
3734const struct p2p_peer_info *
3735p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
3736{
3737 struct p2p_device *dev;
3738
3739 if (addr) {
3740 dev = p2p_get_device(p2p, addr);
3741 if (!dev)
3742 return NULL;
3743
3744 if (!next) {
3745 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
3746 return NULL;
3747
3748 return &dev->info;
3749 } else {
3750 do {
3751 dev = dl_list_first(&dev->list,
3752 struct p2p_device,
3753 list);
3754 if (&dev->list == &p2p->devices)
3755 return NULL;
3756 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
3757 }
3758 } else {
3759 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3760 if (!dev)
3761 return NULL;
3762 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
3763 dev = dl_list_first(&dev->list,
3764 struct p2p_device,
3765 list);
3766 if (&dev->list == &p2p->devices)
3767 return NULL;
3768 }
3769 }
3770
3771 return &dev->info;
3772}
303f60d3
JM		 3773
3774
3775int p2p_in_progress(struct p2p_data *p2p)
3776{
3777 if (p2p == NULL)
3778 return 0;
fc6997b3 3779 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 3780}
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