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WPS: Add more debug information to M7 AP Settings
[thirdparty/hostap.git] / src / p2p / p2p.c
CommitLineData
b22128ef
JM		 1/*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
e22d4d95
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
b22128ef
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "common/ieee802_11_common.h"
15#include "wps/wps_i.h"
16#include "p2p_i.h"
17#include "p2p.h"
18
19
20static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
21static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
22static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
23 const u8 *sa, const u8 *data, size_t len,
24 int rx_freq);
25static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
26 const u8 *sa, const u8 *data,
27 size_t len);
28static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 29static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 30
31
40c03fd4
JM		 32/*
33 * p2p_scan recovery timeout
34 *
35 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
36 * timeout for this to avoid hitting P2P timeout unnecessarily.
37 */
38#define P2P_SCAN_TIMEOUT 35
39
b22128ef
JM		 40/**
41 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
42 * entries will be removed
43 */
dcdd3838
DS		 44#ifndef P2P_PEER_EXPIRATION_AGE
45#define P2P_PEER_EXPIRATION_AGE 60
46#endif /* P2P_PEER_EXPIRATION_AGE */
b22128ef
JM		 47
48#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
49
50static void p2p_expire_peers(struct p2p_data *p2p)
51{
52 struct p2p_device *dev, *n;
acb69cec 53 struct os_reltime now;
1d277f02 54 size_t i;
b22128ef 55
acb69cec 56 os_get_reltime(&now);
b22128ef
JM		 57 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
58 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
59 continue;
b1aebbc4 60
a691d99f
JJ		 61 if (dev == p2p->go_neg_peer) {
62 /*
63 * GO Negotiation is in progress with the peer, so
64 * don't expire the peer entry until GO Negotiation
65 * fails or times out.
66 */
67 continue;
68 }
69
b1aebbc4
JM		 70 if (p2p->cfg->go_connected &&
71 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
72 dev->info.p2p_device_addr)) {
73 /*
74 * We are connected as a client to a group in which the
75 * peer is the GO, so do not expire the peer entry.
76 */
acb69cec 77 os_get_reltime(&dev->last_seen);
b1aebbc4
JM		 78 continue;
79 }
80
1d277f02
JM		 81 for (i = 0; i < p2p->num_groups; i++) {
82 if (p2p_group_is_client_connected(
83 p2p->groups[i], dev->info.p2p_device_addr))
84 break;
85 }
86 if (i < p2p->num_groups) {
87 /*
88 * The peer is connected as a client in a group where
89 * we are the GO, so do not expire the peer entry.
90 */
acb69cec 91 os_get_reltime(&dev->last_seen);
1d277f02
JM		 92 continue;
93 }
94
ed496f13
JM		 95 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
96 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 97 dl_list_del(&dev->list);
98 p2p_device_free(p2p, dev);
99 }
100}
101
102
103static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
104{
105 struct p2p_data *p2p = eloop_ctx;
106 p2p_expire_peers(p2p);
107 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
108 p2p_expiration_timeout, p2p, NULL);
109}
110
111
112static const char * p2p_state_txt(int state)
113{
114 switch (state) {
115 case P2P_IDLE:
116 return "IDLE";
117 case P2P_SEARCH:
118 return "SEARCH";
119 case P2P_CONNECT:
120 return "CONNECT";
121 case P2P_CONNECT_LISTEN:
122 return "CONNECT_LISTEN";
123 case P2P_GO_NEG:
124 return "GO_NEG";
125 case P2P_LISTEN_ONLY:
126 return "LISTEN_ONLY";
127 case P2P_WAIT_PEER_CONNECT:
128 return "WAIT_PEER_CONNECT";
129 case P2P_WAIT_PEER_IDLE:
130 return "WAIT_PEER_IDLE";
131 case P2P_SD_DURING_FIND:
132 return "SD_DURING_FIND";
133 case P2P_PROVISIONING:
134 return "PROVISIONING";
135 case P2P_PD_DURING_FIND:
136 return "PD_DURING_FIND";
137 case P2P_INVITE:
138 return "INVITE";
139 case P2P_INVITE_LISTEN:
140 return "INVITE_LISTEN";
141 default:
142 return "?";
143 }
144}
145
146
4c559019
JM		 147const char * p2p_get_state_txt(struct p2p_data *p2p)
148{
149 return p2p_state_txt(p2p->state);
150}
151
152
ec437d9e
JJ		 153u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
154{
155 struct p2p_device *dev = NULL;
156
157 if (!addr || !p2p)
158 return 0;
159
160 dev = p2p_get_device(p2p, addr);
161 if (dev)
162 return dev->wps_prov_info;
163 else
164 return 0;
165}
166
167
10531d21 168void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 169{
170 struct p2p_device *dev = NULL;
171
10531d21 172 if (!addr || !p2p)
ec437d9e
JJ		 173 return;
174
10531d21 175 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 176 if (dev)
177 dev->wps_prov_info = 0;
178}
179
180
b22128ef
JM		 181void p2p_set_state(struct p2p_data *p2p, int new_state)
182{
ed496f13 183 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 184 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
185 p2p->state = new_state;
186}
187
188
189void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
190{
ed496f13 191 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 192 p2p_state_txt(p2p->state), sec, usec);
193 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
194 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
195}
196
197
198void p2p_clear_timeout(struct p2p_data *p2p)
199{
ed496f13 200 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 201 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
202}
203
204
205void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
206 int status)
207{
208 struct p2p_go_neg_results res;
209 p2p_clear_timeout(p2p);
210 p2p_set_state(p2p, P2P_IDLE);
fb8984fd
JM		 211 if (p2p->go_neg_peer) {
212 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
eb916eb8 213 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
ab9e3442 214 p2p->go_neg_peer->oob_pw_id = 0;
fb8984fd 215 }
b22128ef
JM		 216 p2p->go_neg_peer = NULL;
217
218 os_memset(&res, 0, sizeof(res));
219 res.status = status;
220 if (peer) {
c5db8e51 221 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 222 ETH_ALEN);
223 os_memcpy(res.peer_interface_addr, peer->intended_addr,
224 ETH_ALEN);
225 }
226 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
227}
228
229
96beff11 230static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 231{
232 unsigned int r, tu;
233 int freq;
234 struct wpabuf *ies;
235
ed496f13 236 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 237 p2p_state_txt(p2p->state));
238
9ccd9165 239 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 240 if (freq < 0) {
ed496f13 241 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 242 return;
243 }
244
245 os_get_random((u8 *) &r, sizeof(r));
246 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
247 p2p->min_disc_int) * 100;
96beff11
JM		 248 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
249 tu = p2p->max_disc_tu;
250 if (!dev_disc && tu < 100)
251 tu = 100; /* Need to wait in non-device discovery use cases */
252 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
253 tu = p2p->cfg->max_listen * 1000 / 1024;
254
255 if (tu == 0) {
ed496f13 256 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 257 p2p_set_timeout(p2p, 0, 0);
258 return;
259 }
b22128ef
JM		 260
261 p2p->pending_listen_freq = freq;
262 p2p->pending_listen_sec = 0;
263 p2p->pending_listen_usec = 1024 * tu;
264
265 ies = p2p_build_probe_resp_ies(p2p);
266 if (ies == NULL)
267 return;
268
269 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
270 ies) < 0) {
ed496f13 271 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 272 p2p->pending_listen_freq = 0;
273 }
274 wpabuf_free(ies);
275}
276
277
278int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
279{
280 int freq;
281 struct wpabuf *ies;
282
ed496f13 283 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 284
9ccd9165 285 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 286 if (freq < 0) {
ed496f13 287 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 288 return -1;
289 }
290
291 p2p->pending_listen_freq = freq;
292 p2p->pending_listen_sec = timeout / 1000;
293 p2p->pending_listen_usec = (timeout % 1000) * 1000;
294
295 if (p2p->p2p_scan_running) {
5b9cecaf 296 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 297 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 298 return 0;
299 }
ed496f13 300 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 301 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
302 return 0;
303 }
304
305 ies = p2p_build_probe_resp_ies(p2p);
306 if (ies == NULL)
307 return -1;
308
309 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 310 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 311 p2p->pending_listen_freq = 0;
312 wpabuf_free(ies);
313 return -1;
314 }
315 wpabuf_free(ies);
316
317 p2p_set_state(p2p, P2P_LISTEN_ONLY);
318
319 return 0;
320}
321
322
323static void p2p_device_clear_reported(struct p2p_data *p2p)
324{
325 struct p2p_device *dev;
326 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
327 dev->flags &= ~P2P_DEV_REPORTED;
328}
329
330
331/**
332 * p2p_get_device - Fetch a peer entry
333 * @p2p: P2P module context from p2p_init()
334 * @addr: P2P Device Address of the peer
335 * Returns: Pointer to the device entry or %NULL if not found
336 */
337struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
338{
339 struct p2p_device *dev;
340 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 341 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 342 return dev;
343 }
344 return NULL;
345}
346
347
348/**
349 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
350 * @p2p: P2P module context from p2p_init()
351 * @addr: P2P Interface Address of the peer
352 * Returns: Pointer to the device entry or %NULL if not found
353 */
354struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
355 const u8 *addr)
356{
357 struct p2p_device *dev;
358 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
359 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
360 return dev;
361 }
362 return NULL;
363}
364
365
366/**
367 * p2p_create_device - Create a peer entry
368 * @p2p: P2P module context from p2p_init()
369 * @addr: P2P Device Address of the peer
370 * Returns: Pointer to the device entry or %NULL on failure
371 *
372 * If there is already an entry for the peer, it will be returned instead of
373 * creating a new one.
374 */
375static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
376 const u8 *addr)
377{
378 struct p2p_device *dev, *oldest = NULL;
379 size_t count = 0;
380
381 dev = p2p_get_device(p2p, addr);
382 if (dev)
383 return dev;
384
385 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
386 count++;
387 if (oldest == NULL ||
acb69cec 388 os_reltime_before(&dev->last_seen, &oldest->last_seen))
b22128ef
JM		 389 oldest = dev;
390 }
391 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 392 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 393 dl_list_del(&oldest->list);
394 p2p_device_free(p2p, oldest);
395 }
396
397 dev = os_zalloc(sizeof(*dev));
398 if (dev == NULL)
399 return NULL;
400 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 401 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 402
403 return dev;
404}
405
406
407static void p2p_copy_client_info(struct p2p_device *dev,
408 struct p2p_client_info *cli)
409{
c5db8e51
KRK		 410 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
411 dev->info.device_name[cli->dev_name_len] = '\0';
412 dev->info.dev_capab = cli->dev_capab;
413 dev->info.config_methods = cli->config_methods;
414 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 415 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
416 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
417 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 418}
419
420
421static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
422 const u8 *go_interface_addr, int freq,
423 const u8 *gi, size_t gi_len)
424{
425 struct p2p_group_info info;
426 size_t c;
427 struct p2p_device *dev;
428
429 if (gi == NULL)
430 return 0;
431
432 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
433 return -1;
434
435 /*
436 * Clear old data for this group; if the devices are still in the
437 * group, the information will be restored in the loop following this.
438 */
439 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 440 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 441 ETH_ALEN) == 0) {
442 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
443 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
444 }
445 }
446
447 for (c = 0; c < info.num_clients; c++) {
448 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 449 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
450 ETH_ALEN) == 0)
451 continue; /* ignore our own entry */
b22128ef
JM		 452 dev = p2p_get_device(p2p, cli->p2p_device_addr);
453 if (dev) {
b22128ef 454 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 455 P2P_DEV_PROBE_REQ_ONLY)) {
456 /*
457 * Update information since we have not
458 * received this directly from the client.
459 */
b22128ef 460 p2p_copy_client_info(dev, cli);
f33bc035
JM		 461 } else {
462 /*
463 * Need to update P2P Client Discoverability
464 * flag since it is valid only in P2P Group
465 * Info attribute.
466 */
467 dev->info.dev_capab &=
468 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
469 dev->info.dev_capab |=
470 cli->dev_capab &
471 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
472 }
b22128ef
JM		 473 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
474 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
475 }
476 } else {
477 dev = p2p_create_device(p2p, cli->p2p_device_addr);
478 if (dev == NULL)
479 continue;
480 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
481 p2p_copy_client_info(dev, cli);
482 dev->oper_freq = freq;
c5db8e51
KRK		 483 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
484 dev->info.p2p_device_addr,
8fd7dc1b
JB		 485 &dev->info, 1);
486 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 487 }
488
489 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
490 ETH_ALEN);
acb69cec 491 os_get_reltime(&dev->last_seen);
b22128ef
JM		 492 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
493 os_memcpy(dev->member_in_go_iface, go_interface_addr,
494 ETH_ALEN);
495 }
496
497 return 0;
498}
499
500
ed496f13
JM		 501static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
502 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 503{
504 os_memcpy(dev->info.device_name, msg->device_name,
505 sizeof(dev->info.device_name));
506
507 if (msg->manufacturer &&
508 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
509 os_memset(dev->info.manufacturer, 0,
510 sizeof(dev->info.manufacturer));
511 os_memcpy(dev->info.manufacturer, msg->manufacturer,
512 msg->manufacturer_len);
513 }
514
515 if (msg->model_name &&
516 msg->model_name_len < sizeof(dev->info.model_name)) {
517 os_memset(dev->info.model_name, 0,
518 sizeof(dev->info.model_name));
519 os_memcpy(dev->info.model_name, msg->model_name,
520 msg->model_name_len);
521 }
522
523 if (msg->model_number &&
524 msg->model_number_len < sizeof(dev->info.model_number)) {
525 os_memset(dev->info.model_number, 0,
526 sizeof(dev->info.model_number));
527 os_memcpy(dev->info.model_number, msg->model_number,
528 msg->model_number_len);
529 }
530
531 if (msg->serial_number &&
532 msg->serial_number_len < sizeof(dev->info.serial_number)) {
533 os_memset(dev->info.serial_number, 0,
534 sizeof(dev->info.serial_number));
535 os_memcpy(dev->info.serial_number, msg->serial_number,
536 msg->serial_number_len);
537 }
538
539 if (msg->pri_dev_type)
540 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
541 sizeof(dev->info.pri_dev_type));
542 else if (msg->wps_pri_dev_type)
543 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
544 sizeof(dev->info.pri_dev_type));
545
546 if (msg->wps_sec_dev_type_list) {
547 os_memcpy(dev->info.wps_sec_dev_type_list,
548 msg->wps_sec_dev_type_list,
549 msg->wps_sec_dev_type_list_len);
550 dev->info.wps_sec_dev_type_list_len =
551 msg->wps_sec_dev_type_list_len;
552 }
553
554 if (msg->capability) {
f33bc035
JM		 555 /*
556 * P2P Client Discoverability bit is reserved in all frames
557 * that use this function, so do not change its value here.
558 */
559 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
560 dev->info.dev_capab |= msg->capability[0] &
561 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 562 dev->info.group_capab = msg->capability[1];
563 }
564
565 if (msg->ext_listen_timing) {
566 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
567 dev->ext_listen_interval =
568 WPA_GET_LE16(msg->ext_listen_timing + 2);
569 }
570
571 if (!probe_req) {
954ee628
JM		 572 u16 new_config_methods;
573 new_config_methods = msg->config_methods ?
b67d0d9e 574 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 575 if (new_config_methods &&
576 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 577 p2p_dbg(p2p, "Update peer " MACSTR
578 " config_methods 0x%x -> 0x%x",
579 MAC2STR(dev->info.p2p_device_addr),
580 dev->info.config_methods,
581 new_config_methods);
954ee628
JM		 582 dev->info.config_methods = new_config_methods;
583 }
b67d0d9e
JM		 584 }
585}
586
587
b22128ef 588/**
c98b83f2 589 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 590 * @p2p: P2P module context from p2p_init()
591 * @addr: Source address of Beacon or Probe Response frame (may be either
592 * P2P Device Address or P2P Interface Address)
593 * @level: Signal level (signal strength of the received frame from the peer)
594 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 595 * @rx_time: Time when the result was received
b22128ef
JM		 596 * @ies: IEs from the Beacon or Probe Response frame
597 * @ies_len: Length of ies buffer in octets
c98b83f2 598 * @scan_res: Whether this was based on scan results
b22128ef
JM		 599 * Returns: 0 on success, -1 on failure
600 *
601 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 602 * to the peer table. This function can also be used with some other frames
603 * like Provision Discovery Request that contains P2P Capability and P2P Device
604 * Info attributes.
b22128ef 605 */
3dfd0484 606int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
acb69cec 607 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 608 size_t ies_len, int scan_res)
b22128ef
JM		 609{
610 struct p2p_device *dev;
611 struct p2p_message msg;
612 const u8 *p2p_dev_addr;
6f2c0607 613 int i;
acb69cec 614 struct os_reltime time_now;
b22128ef
JM		 615
616 os_memset(&msg, 0, sizeof(msg));
617 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 618 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 619 p2p_parse_free(&msg);
620 return -1;
621 }
622
623 if (msg.p2p_device_addr)
624 p2p_dev_addr = msg.p2p_device_addr;
625 else if (msg.device_id)
626 p2p_dev_addr = msg.device_id;
627 else {
ed496f13 628 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 629 p2p_parse_free(&msg);
630 return -1;
631 }
632
80c9582a
JM		 633 if (!is_zero_ether_addr(p2p->peer_filter) &&
634 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 635 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
636 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 637 p2p_parse_free(&msg);
80c9582a
JM		 638 return 0;
639 }
640
b22128ef
JM		 641 dev = p2p_create_device(p2p, p2p_dev_addr);
642 if (dev == NULL) {
643 p2p_parse_free(&msg);
644 return -1;
645 }
3dfd0484 646
c5f10e80 647 if (rx_time == NULL) {
acb69cec 648 os_get_reltime(&time_now);
c5f10e80
JM		 649 rx_time = &time_now;
650 }
3dfd0484
YD		 651
652 /*
653 * Update the device entry only if the new peer
654 * entry is newer than the one previously stored.
655 */
c5f10e80 656 if (dev->last_seen.sec > 0 &&
acb69cec 657 os_reltime_before(rx_time, &dev->last_seen)) {
ed496f13 658 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
c5f10e80
JM		 659 (unsigned int) rx_time->sec,
660 (unsigned int) rx_time->usec,
661 (unsigned int) dev->last_seen.sec,
662 (unsigned int) dev->last_seen.usec);
f96c1d76 663 p2p_parse_free(&msg);
3dfd0484 664 return -1;
f96c1d76 665 }
3dfd0484 666
acb69cec 667 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
3dfd0484 668
b22128ef
JM		 669 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
670
671 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
672 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
673 if (msg.ssid &&
674 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
675 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
676 != 0)) {
677 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
678 dev->oper_ssid_len = msg.ssid[1];
679 }
680
681 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
682 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
683 int ds_freq;
684 if (*msg.ds_params == 14)
685 ds_freq = 2484;
686 else
687 ds_freq = 2407 + *msg.ds_params * 5;
688 if (freq != ds_freq) {
ed496f13 689 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 690 freq, ds_freq);
691 freq = ds_freq;
692 }
693 }
694
c98b83f2 695 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 696 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
697 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 698 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
699 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 700 }
c98b83f2
JM		 701 if (scan_res) {
702 dev->listen_freq = freq;
703 if (msg.group_info)
704 dev->oper_freq = freq;
705 }
6402fc43 706 dev->info.level = level;
b22128ef 707
ed496f13 708 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 709
10c5d2a5 710 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 711 wpabuf_free(dev->info.wps_vendor_ext[i]);
712 dev->info.wps_vendor_ext[i] = NULL;
713 }
714
10c5d2a5 715 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 716 if (msg.wps_vendor_ext[i] == NULL)
717 break;
718 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
719 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
720 if (dev->info.wps_vendor_ext[i] == NULL)
721 break;
722 }
723
9675ce35
JM		 724 if (msg.wfd_subelems) {
725 wpabuf_free(dev->info.wfd_subelems);
726 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
727 }
728
c98b83f2
JM		 729 if (scan_res) {
730 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
731 msg.group_info, msg.group_info_len);
732 }
b22128ef
JM		 733
734 p2p_parse_free(&msg);
735
736 if (p2p_pending_sd_req(p2p, dev))
737 dev->flags |= P2P_DEV_SD_SCHEDULE;
738
739 if (dev->flags & P2P_DEV_REPORTED)
740 return 0;
741
ed496f13
JM		 742 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
743 freq, (unsigned int) rx_time->sec,
c5f10e80 744 (unsigned int) rx_time->usec);
b22128ef 745 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 746 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 747 return 0;
748 }
8fd7dc1b 749
8b2b2a70
JM		 750 if (dev->info.config_methods == 0 &&
751 (freq == 2412 || freq == 2437 || freq == 2462)) {
752 /*
753 * If we have only seen a Beacon frame from a GO, we do not yet
754 * know what WPS config methods it supports. Since some
755 * applications use config_methods value from P2P-DEVICE-FOUND
756 * events, postpone reporting this peer until we've fully
757 * discovered its capabilities.
758 *
759 * At least for now, do this only if the peer was detected on
760 * one of the social channels since that peer can be easily be
761 * found again and there are no limitations of having to use
762 * passive scan on this channels, so this can be done through
763 * Probe Response frame that includes the config_methods
764 * information.
765 */
ed496f13
JM		 766 p2p_dbg(p2p, "Do not report peer " MACSTR
767 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 768 return 0;
769 }
770
8fd7dc1b
JB		 771 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
772 !(dev->flags & P2P_DEV_REPORTED_ONCE));
773 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 774
775 return 0;
776}
777
778
779static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
780{
6f2c0607
JMB		 781 int i;
782
5cfda25e
JJ		 783 if (p2p->go_neg_peer == dev) {
784 /*
785 * If GO Negotiation is in progress, report that it has failed.
786 */
787 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 788 p2p->go_neg_peer = NULL;
5cfda25e 789 }
b22128ef
JM		 790 if (p2p->invite_peer == dev)
791 p2p->invite_peer = NULL;
792 if (p2p->sd_peer == dev)
793 p2p->sd_peer = NULL;
794 if (p2p->pending_client_disc_go == dev)
795 p2p->pending_client_disc_go = NULL;
796
f5fc6032
AC		 797 /* dev_lost() device, but only if it was previously dev_found() */
798 if (dev->flags & P2P_DEV_REPORTED_ONCE)
799 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
800 dev->info.p2p_device_addr);
56eeb8f2 801
10c5d2a5 802 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 803 wpabuf_free(dev->info.wps_vendor_ext[i]);
804 dev->info.wps_vendor_ext[i] = NULL;
805 }
806
9675ce35
JM		 807 wpabuf_free(dev->info.wfd_subelems);
808
b22128ef
JM		 809 os_free(dev);
810}
811
812
813static int p2p_get_next_prog_freq(struct p2p_data *p2p)
814{
815 struct p2p_channels *c;
816 struct p2p_reg_class *cla;
817 size_t cl, ch;
818 int found = 0;
819 u8 reg_class;
820 u8 channel;
821 int freq;
822
823 c = &p2p->cfg->channels;
824 for (cl = 0; cl < c->reg_classes; cl++) {
825 cla = &c->reg_class[cl];
826 if (cla->reg_class != p2p->last_prog_scan_class)
827 continue;
828 for (ch = 0; ch < cla->channels; ch++) {
829 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
830 found = 1;
831 break;
832 }
833 }
834 if (found)
835 break;
836 }
837
838 if (!found) {
839 /* Start from beginning */
840 reg_class = c->reg_class[0].reg_class;
841 channel = c->reg_class[0].channel[0];
842 } else {
843 /* Pick the next channel */
844 ch++;
845 if (ch == cla->channels) {
846 cl++;
847 if (cl == c->reg_classes)
848 cl = 0;
849 ch = 0;
850 }
851 reg_class = c->reg_class[cl].reg_class;
852 channel = c->reg_class[cl].channel[ch];
853 }
854
9ccd9165 855 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 856 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 857 reg_class, channel, freq);
858 p2p->last_prog_scan_class = reg_class;
859 p2p->last_prog_scan_chan = channel;
860
861 if (freq == 2412 || freq == 2437 || freq == 2462)
862 return 0; /* No need to add social channels */
863 return freq;
864}
865
866
867static void p2p_search(struct p2p_data *p2p)
868{
869 int freq = 0;
870 enum p2p_scan_type type;
360182ed 871 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 872 int res;
b22128ef
JM		 873
874 if (p2p->drv_in_listen) {
ed496f13 875 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 876 return;
877 }
878 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
879
e6ecfc4f
JB		 880 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
881 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef 882 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 883 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 884 } else {
885 type = P2P_SCAN_SOCIAL;
ed496f13 886 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 887 }
888
99fcd404
JM		 889 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
890 p2p->num_req_dev_types, p2p->req_dev_types,
891 p2p->find_dev_id, pw_id);
892 if (res < 0) {
ed496f13 893 p2p_dbg(p2p, "Scan request failed");
b22128ef 894 p2p_continue_find(p2p);
40c03fd4 895 } else {
ed496f13 896 p2p_dbg(p2p, "Running p2p_scan");
40c03fd4
JM		 897 p2p->p2p_scan_running = 1;
898 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
899 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
900 p2p, NULL);
b22128ef
JM		 901 }
902}
903
904
905static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
906{
907 struct p2p_data *p2p = eloop_ctx;
ed496f13 908 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 909 p2p_stop_find(p2p);
910}
911
912
913static int p2p_run_after_scan(struct p2p_data *p2p)
914{
915 struct p2p_device *dev;
916 enum p2p_after_scan op;
917
3f9285ff 918 if (p2p->after_scan_tx) {
63a965c3 919 p2p->after_scan_tx_in_progress = 1;
ed496f13 920 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
46eeedac
JM		 921 p2p->cfg->send_action(p2p->cfg->cb_ctx,
922 p2p->after_scan_tx->freq,
923 p2p->after_scan_tx->dst,
924 p2p->after_scan_tx->src,
925 p2p->after_scan_tx->bssid,
926 (u8 *) (p2p->after_scan_tx + 1),
927 p2p->after_scan_tx->len,
928 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 929 os_free(p2p->after_scan_tx);
930 p2p->after_scan_tx = NULL;
931 return 1;
932 }
933
b22128ef
JM		 934 op = p2p->start_after_scan;
935 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
936 switch (op) {
937 case P2P_AFTER_SCAN_NOTHING:
938 break;
939 case P2P_AFTER_SCAN_LISTEN:
ed496f13 940 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 941 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
942 p2p->pending_listen_usec / 1000);
943 return 1;
944 case P2P_AFTER_SCAN_CONNECT:
ed496f13 945 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 946 MAC2STR(p2p->after_scan_peer));
947 dev = p2p_get_device(p2p, p2p->after_scan_peer);
948 if (dev == NULL) {
ed496f13 949 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 950 break;
951 }
952 p2p_connect_send(p2p, dev);
953 return 1;
954 }
955
956 return 0;
957}
958
959
b22128ef
JM		 960static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
961{
962 struct p2p_data *p2p = eloop_ctx;
963 int running;
ed496f13 964 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 965 running = p2p->p2p_scan_running;
966 /* Make sure we recover from missed scan results callback */
967 p2p->p2p_scan_running = 0;
968
969 if (running)
970 p2p_run_after_scan(p2p);
971}
972
973
046ef4aa
JMB		 974static void p2p_free_req_dev_types(struct p2p_data *p2p)
975{
976 p2p->num_req_dev_types = 0;
977 os_free(p2p->req_dev_types);
978 p2p->req_dev_types = NULL;
979}
980
981
b22128ef 982int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 983 enum p2p_discovery_type type,
6d92fa6e 984 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 985 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 986{
987 int res;
988
ed496f13 989 p2p_dbg(p2p, "Starting find (type=%d)", type);
acb69cec 990 os_get_reltime(&p2p->find_start);
b22128ef 991 if (p2p->p2p_scan_running) {
ed496f13 992 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 993 }
046ef4aa
JMB		 994
995 p2p_free_req_dev_types(p2p);
996 if (req_dev_types && num_req_dev_types) {
997 p2p->req_dev_types = os_malloc(num_req_dev_types *
998 WPS_DEV_TYPE_LEN);
999 if (p2p->req_dev_types == NULL)
1000 return -1;
1001 os_memcpy(p2p->req_dev_types, req_dev_types,
1002 num_req_dev_types * WPS_DEV_TYPE_LEN);
1003 p2p->num_req_dev_types = num_req_dev_types;
1004 }
1005
6d92fa6e
JM		 1006 if (dev_id) {
1007 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1008 p2p->find_dev_id = p2p->find_dev_id_buf;
1009 } else
1010 p2p->find_dev_id = NULL;
1011
b22128ef
JM		 1012 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1013 p2p_clear_timeout(p2p);
1014 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1015 p2p->find_type = type;
1016 p2p_device_clear_reported(p2p);
1017 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1018 p2p->search_delay = search_delay;
1019 p2p->in_search_delay = 0;
b22128ef 1020 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1021 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1022 if (timeout)
1023 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1024 p2p, NULL);
1025 switch (type) {
1026 case P2P_FIND_START_WITH_FULL:
1027 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1028 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1029 p2p->num_req_dev_types,
360182ed
JM		 1030 p2p->req_dev_types, dev_id,
1031 DEV_PW_DEFAULT);
b22128ef
JM		 1032 break;
1033 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1034 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1035 p2p->num_req_dev_types,
360182ed
JM		 1036 p2p->req_dev_types, dev_id,
1037 DEV_PW_DEFAULT);
b22128ef
JM		 1038 break;
1039 default:
1040 return -1;
1041 }
1042
1043 if (res == 0) {
ed496f13 1044 p2p_dbg(p2p, "Running p2p_scan");
b22128ef
JM		 1045 p2p->p2p_scan_running = 1;
1046 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1047 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1048 p2p, NULL);
1b5d4714
JM		 1049 } else if (p2p->p2p_scan_running) {
1050 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1051 /* wait for the previous p2p_scan to complete */
b22128ef 1052 } else {
ed496f13 1053 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1054 p2p_set_state(p2p, P2P_IDLE);
1055 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1056 }
1057
1058 return res;
1059}
1060
1061
0b8889d8 1062void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1063{
ed496f13 1064 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1065 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1066 p2p_clear_timeout(p2p);
1b5d4714 1067 if (p2p->state == P2P_SEARCH)
710ae9ac 1068 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
b22128ef 1069 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1070 p2p_free_req_dev_types(p2p);
b22128ef 1071 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1072 if (p2p->go_neg_peer)
fb8984fd 1073 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1074 p2p->go_neg_peer = NULL;
1075 p2p->sd_peer = NULL;
1076 p2p->invite_peer = NULL;
1a9c618d
JM		 1077 p2p_stop_listen_for_freq(p2p, freq);
1078}
1079
1080
1081void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1082{
0b8889d8 1083 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1084 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1085 return;
1086 }
1a9c618d
JM		 1087 if (p2p->in_listen) {
1088 p2p->in_listen = 0;
1089 p2p_clear_timeout(p2p);
1090 }
54b8f994
JM		 1091 if (p2p->drv_in_listen) {
1092 /*
1093 * The driver may not deliver callback to p2p_listen_end()
1094 * when the operation gets canceled, so clear the internal
1095 * variable that is tracking driver state.
1096 */
ed496f13 1097 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1098 p2p->drv_in_listen = 0;
1099 }
b22128ef
JM		 1100 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1101}
1102
1103
0b5fb86a
SADR		 1104void p2p_stop_listen(struct p2p_data *p2p)
1105{
1106 if (p2p->state != P2P_LISTEN_ONLY) {
1107 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1108 return;
1109 }
1110
1111 p2p_stop_listen_for_freq(p2p, 0);
1112 p2p_set_state(p2p, P2P_IDLE);
1113}
1114
1115
0b8889d8
JM		 1116void p2p_stop_find(struct p2p_data *p2p)
1117{
1118 p2p_stop_find_for_freq(p2p, 0);
1119}
1120
1121
e28c226d
JM		 1122static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1123 unsigned int force_freq,
51e9f228 1124 unsigned int pref_freq, int go)
e28c226d
JM		 1125{
1126 u8 op_class, op_channel;
1127 unsigned int freq = force_freq ? force_freq : pref_freq;
1128
51e9f228
JM		 1129 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1130 force_freq, pref_freq, go);
9ccd9165 1131 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1132 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1133 return -1;
1134 }
1135
51e9f228
JM		 1136 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1137 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1138 op_channel))) {
ed496f13
JM		 1139 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1140 freq, op_class, op_channel);
e28c226d
JM		 1141 return -1;
1142 }
1143
1144 p2p->op_reg_class = op_class;
1145 p2p->op_channel = op_channel;
1146
1147 if (force_freq) {
1148 p2p->channels.reg_classes = 1;
1149 p2p->channels.reg_class[0].channels = 1;
1150 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1151 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1152 } else {
1153 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1154 sizeof(struct p2p_channels));
1155 }
1156
1157 return 0;
1158}
1159
1160
1161static void p2p_prepare_channel_best(struct p2p_data *p2p)
1162{
1163 u8 op_class, op_channel;
00043740
JM		 1164 const int op_classes_5ghz[] = { 124, 115, 0 };
1165 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
384bdd02 1166 const int op_classes_vht[] = { 128, 0 };
e28c226d 1167
99d7c762
JM		 1168 p2p_dbg(p2p, "Prepare channel best");
1169
e28c226d
JM		 1170 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1171 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1172 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1173 == 0) {
ed496f13 1174 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1175 p2p->op_reg_class = op_class;
1176 p2p->op_channel = op_channel;
1177 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1178 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1179 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1180 == 0) {
ed496f13 1181 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1182 p2p->op_reg_class = op_class;
1183 p2p->op_channel = op_channel;
1184 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1185 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1186 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1187 &op_channel) == 0) {
ed496f13 1188 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1189 p2p->op_reg_class = op_class;
1190 p2p->op_channel = op_channel;
6701fdc3
JM		 1191 } else if (p2p->cfg->num_pref_chan > 0 &&
1192 p2p_channels_includes(&p2p->cfg->channels,
1193 p2p->cfg->pref_chan[0].op_class,
1194 p2p->cfg->pref_chan[0].chan)) {
1195 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1196 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1197 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
384bdd02
JM		 1198 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1199 &p2p->op_reg_class, &p2p->op_channel) ==
1200 0) {
1201 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1202 p2p->op_reg_class, p2p->op_channel);
a30d50b3
JM		 1203 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1204 &p2p->op_reg_class, &p2p->op_channel) ==
1205 0) {
1206 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1207 p2p->op_reg_class, p2p->op_channel);
f2407107
JM		 1208 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1209 &p2p->op_reg_class, &p2p->op_channel) ==
1210 0) {
1211 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1212 p2p->op_reg_class, p2p->op_channel);
e28c226d 1213 } else {
99d7c762 1214 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1215 p2p->op_reg_class = p2p->cfg->op_reg_class;
1216 p2p->op_channel = p2p->cfg->op_channel;
1217 }
1218
1219 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1220 sizeof(struct p2p_channels));
1221}
1222
1223
a5830ede
JM		 1224/**
1225 * p2p_prepare_channel - Select operating channel for GO Negotiation
1226 * @p2p: P2P module context from p2p_init()
1227 * @dev: Selected peer device
1228 * @force_freq: Forced frequency in MHz or 0 if not forced
1229 * @pref_freq: Preferred frequency in MHz or 0 if no preference
51e9f228 1230 * @go: Whether the local end will be forced to be GO
a5830ede
JM		 1231 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1232 *
1233 * This function is used to do initial operating channel selection for GO
1234 * Negotiation prior to having received peer information. The selected channel
1235 * may be further optimized in p2p_reselect_channel() once the peer information
1236 * is available.
1237 */
79879f4a 1238int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
51e9f228 1239 unsigned int force_freq, unsigned int pref_freq, int go)
b22128ef 1240{
51e9f228
JM		 1241 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1242 force_freq, pref_freq, go);
04a3e69d 1243 if (force_freq || pref_freq) {
51e9f228
JM		 1244 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1245 0)
1e19f734 1246 return -1;
b22128ef 1247 } else {
e28c226d 1248 p2p_prepare_channel_best(p2p);
b22128ef 1249 }
51e9f228
JM		 1250 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1251 if (go)
1252 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1253 else if (!force_freq)
1254 p2p_channels_union(&p2p->channels, &p2p->cfg->cli_channels,
1255 &p2p->channels);
1256 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1257
ed496f13 1258 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1259 p2p->op_reg_class, p2p->op_channel,
1260 force_freq ? " (forced)" : "");
1261
92ac756c
JM		 1262 if (force_freq)
1263 dev->flags |= P2P_DEV_FORCE_FREQ;
1264 else
1265 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1266
7861cb08
JM		 1267 return 0;
1268}
1269
1270
acc247b2
JM		 1271static void p2p_set_dev_persistent(struct p2p_device *dev,
1272 int persistent_group)
1273{
1274 switch (persistent_group) {
1275 case 0:
1276 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1277 P2P_DEV_PREFER_PERSISTENT_RECONN);
1278 break;
1279 case 1:
1280 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1281 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1282 break;
1283 case 2:
1284 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1285 P2P_DEV_PREFER_PERSISTENT_RECONN;
1286 break;
1287 }
1288}
1289
1290
7861cb08
JM		 1291int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1292 enum p2p_wps_method wps_method,
1293 int go_intent, const u8 *own_interface_addr,
23c84252 1294 unsigned int force_freq, int persistent_group,
3bc462cb 1295 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1296 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
7861cb08
JM		 1297{
1298 struct p2p_device *dev;
1299
ed496f13 1300 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1301 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442
JM		 1302 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1303 "oob_pw_id=%u",
7861cb08 1304 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1305 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
7861cb08 1306
b22128ef
JM		 1307 dev = p2p_get_device(p2p, peer_addr);
1308 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1309 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1310 MAC2STR(peer_addr));
1311 return -1;
1312 }
1313
51e9f228
JM		 1314 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1315 go_intent == 15) < 0)
92ac756c
JM		 1316 return -1;
1317
b22128ef 1318 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1319 if (!(dev->info.dev_capab &
1320 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1321 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1322 " that is in a group and is not discoverable",
1323 MAC2STR(peer_addr));
1324 return -1;
1325 }
1326 if (dev->oper_freq <= 0) {
ed496f13 1327 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1328 " with incomplete information",
1329 MAC2STR(peer_addr));
1330 return -1;
1331 }
1332
1333 /*
1334 * First, try to connect directly. If the peer does not
1335 * acknowledge frames, assume it is sleeping and use device
1336 * discoverability via the GO at that point.
1337 */
1338 }
1339
23c84252
JM		 1340 p2p->ssid_set = 0;
1341 if (force_ssid) {
1342 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1343 force_ssid, force_ssid_len);
1344 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1345 p2p->ssid_len = force_ssid_len;
1346 p2p->ssid_set = 1;
1347 }
1348
b22128ef
JM		 1349 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1350 dev->flags &= ~P2P_DEV_USER_REJECTED;
1351 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1352 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1353 if (pd_before_go_neg)
1354 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1355 else {
3bc462cb 1356 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1357 /*
003c4580
JM		 1358 * Assign dialog token and tie breaker here to use the same
1359 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1360 */
1361 dev->dialog_token++;
1362 if (dev->dialog_token == 0)
1363 dev->dialog_token = 1;
003c4580
JM		 1364 dev->tie_breaker = p2p->next_tie_breaker;
1365 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1366 }
9dac8c3e 1367 dev->connect_reqs = 0;
b22128ef
JM		 1368 dev->go_neg_req_sent = 0;
1369 dev->go_state = UNKNOWN_GO;
acc247b2 1370 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1371 p2p->go_intent = go_intent;
1372 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1373
1374 if (p2p->state != P2P_IDLE)
1375 p2p_stop_find(p2p);
1376
f44ae207
JM		 1377 if (p2p->after_scan_tx) {
1378 /*
1379 * We need to drop the pending frame to avoid issues with the
1380 * new GO Negotiation, e.g., when the pending frame was from a
1381 * previous attempt at starting a GO Negotiation.
1382 */
ed496f13 1383 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
f44ae207
JM		 1384 os_free(p2p->after_scan_tx);
1385 p2p->after_scan_tx = NULL;
1386 }
1387
b22128ef 1388 dev->wps_method = wps_method;
ab9e3442 1389 dev->oob_pw_id = oob_pw_id;
b22128ef 1390 dev->status = P2P_SC_SUCCESS;
d5b20a73 1391
b22128ef 1392 if (p2p->p2p_scan_running) {
ed496f13 1393 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1394 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1395 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1396 return 0;
1397 }
1398 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1399
1400 return p2p_connect_send(p2p, dev);
1401}
1402
1403
1404int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1405 enum p2p_wps_method wps_method,
1406 int go_intent, const u8 *own_interface_addr,
23c84252 1407 unsigned int force_freq, int persistent_group,
04a3e69d 1408 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1409 unsigned int pref_freq, u16 oob_pw_id)
b22128ef
JM		 1410{
1411 struct p2p_device *dev;
1412
ed496f13 1413 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef 1414 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442 1415 " wps_method=%d persistent_group=%d oob_pw_id=%u",
b22128ef 1416 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1417 wps_method, persistent_group, oob_pw_id);
b22128ef 1418
b22128ef
JM		 1419 dev = p2p_get_device(p2p, peer_addr);
1420 if (dev == NULL) {
ed496f13 1421 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1422 MAC2STR(peer_addr));
1423 return -1;
1424 }
1425
51e9f228
JM		 1426 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1427 15) < 0)
92ac756c
JM		 1428 return -1;
1429
23c84252
JM		 1430 p2p->ssid_set = 0;
1431 if (force_ssid) {
1432 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1433 force_ssid, force_ssid_len);
1434 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1435 p2p->ssid_len = force_ssid_len;
1436 p2p->ssid_set = 1;
1437 }
1438
b22128ef
JM		 1439 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1440 dev->flags &= ~P2P_DEV_USER_REJECTED;
1441 dev->go_neg_req_sent = 0;
1442 dev->go_state = UNKNOWN_GO;
acc247b2 1443 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1444 p2p->go_intent = go_intent;
1445 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1446
1447 dev->wps_method = wps_method;
ab9e3442 1448 dev->oob_pw_id = oob_pw_id;
b22128ef
JM		 1449 dev->status = P2P_SC_SUCCESS;
1450
1451 return 0;
1452}
1453
1454
1455void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1456 struct p2p_device *dev, struct p2p_message *msg)
1457{
acb69cec 1458 os_get_reltime(&dev->last_seen);
b22128ef 1459
ed496f13 1460 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1461
b22128ef
JM		 1462 if (msg->listen_channel) {
1463 int freq;
9ccd9165 1464 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1465 msg->listen_channel[4]);
1466 if (freq < 0) {
ed496f13 1467 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1468 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1469 msg->listen_channel[0],
1470 msg->listen_channel[1],
1471 msg->listen_channel[2],
1472 msg->listen_channel[3],
1473 msg->listen_channel[4]);
1474 } else {
ed496f13
JM		 1475 p2p_dbg(p2p, "Update peer " MACSTR
1476 " Listen channel: %u -> %u MHz",
c5db8e51 1477 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1478 dev->listen_freq, freq);
1479 dev->listen_freq = freq;
1480 }
1481 }
b22128ef 1482
9675ce35
JM		 1483 if (msg->wfd_subelems) {
1484 wpabuf_free(dev->info.wfd_subelems);
1485 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1486 }
1487
b22128ef
JM		 1488 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1489 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1490 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1491 } else {
ed496f13 1492 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1493 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1494 "listen_freq=%d",
c5db8e51
KRK		 1495 MAC2STR(dev->info.p2p_device_addr),
1496 dev->info.dev_capab, dev->info.group_capab,
1497 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1498 }
1499
1500 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1501
1502 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1503 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1504 return;
1505 }
1506
8fd7dc1b
JB		 1507 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1508 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1509 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1510}
1511
1512
1513void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1514{
1515 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1516 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1517 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1518 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1519 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1520}
1521
1522
1523int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1524{
1525 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1526 p2p_random(params->passphrase, 8);
1527 return 0;
1528}
1529
1530
1531void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1532{
1533 struct p2p_go_neg_results res;
1534 int go = peer->go_state == LOCAL_GO;
1535 struct p2p_channels intersection;
1536 int freqs;
1537 size_t i, j;
1538
ed496f13
JM		 1539 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1540 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1541
1542 os_memset(&res, 0, sizeof(res));
1543 res.role_go = go;
c5db8e51 1544 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1545 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1546 res.wps_method = peer->wps_method;
acc247b2
JM		 1547 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1548 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1549 res.persistent_group = 2;
1550 else
1551 res.persistent_group = 1;
1552 }
b22128ef
JM		 1553
1554 if (go) {
1555 /* Setup AP mode for WPS provisioning */
9ccd9165 1556 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1557 p2p->op_channel);
1558 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1559 res.ssid_len = p2p->ssid_len;
1560 p2p_random(res.passphrase, 8);
e9a7ae41 1561 } else {
b22128ef 1562 res.freq = peer->oper_freq;
e9a7ae41
JM		 1563 if (p2p->ssid_len) {
1564 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1565 res.ssid_len = p2p->ssid_len;
1566 }
1567 }
b22128ef 1568
556b30da
JM		 1569 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1570 p2p_channels_dump(p2p, "peer channels", &peer->channels);
b22128ef
JM		 1571 p2p_channels_intersect(&p2p->channels, &peer->channels,
1572 &intersection);
556b30da
JM		 1573 if (go) {
1574 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1575 p2p_channels_dump(p2p, "intersection after no-GO removal",
1576 &intersection);
1577 }
b22128ef
JM		 1578 freqs = 0;
1579 for (i = 0; i < intersection.reg_classes; i++) {
1580 struct p2p_reg_class *c = &intersection.reg_class[i];
1581 if (freqs + 1 == P2P_MAX_CHANNELS)
1582 break;
1583 for (j = 0; j < c->channels; j++) {
1584 int freq;
1585 if (freqs + 1 == P2P_MAX_CHANNELS)
1586 break;
9ccd9165 1587 freq = p2p_channel_to_freq(c->reg_class, c->channel[j]);
b22128ef
JM		 1588 if (freq < 0)
1589 continue;
1590 res.freq_list[freqs++] = freq;
1591 }
1592 }
1593
ae3e3421
JM		 1594 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1595
b22128ef 1596 p2p_clear_timeout(p2p);
4458d915 1597 p2p->ssid_set = 0;
b22128ef
JM		 1598 peer->go_neg_req_sent = 0;
1599 peer->wps_method = WPS_NOT_READY;
ab9e3442 1600 peer->oob_pw_id = 0;
b22128ef
JM		 1601
1602 p2p_set_state(p2p, P2P_PROVISIONING);
1603 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1604}
1605
1606
1607static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1608 const u8 *data, size_t len, int rx_freq)
1609{
ed496f13 1610 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1611 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1612
1613 if (len < 1)
1614 return;
1615
1616 switch (data[0]) {
1617 case P2P_GO_NEG_REQ:
1618 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1619 break;
1620 case P2P_GO_NEG_RESP:
1621 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1622 break;
1623 case P2P_GO_NEG_CONF:
1624 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1625 break;
1626 case P2P_INVITATION_REQ:
1627 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1628 rx_freq);
1629 break;
1630 case P2P_INVITATION_RESP:
dc46fd66 1631 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 1632 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1633 break;
1634 case P2P_PROV_DISC_REQ:
1635 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1636 break;
1637 case P2P_PROV_DISC_RESP:
1638 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1639 break;
1640 case P2P_DEV_DISC_REQ:
1641 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1642 break;
1643 case P2P_DEV_DISC_RESP:
1644 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1645 break;
1646 default:
ed496f13 1647 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1648 data[0]);
1649 break;
1650 }
1651}
1652
1653
19df9b07
JM		 1654static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1655 const u8 *sa, const u8 *bssid, const u8 *data,
1656 size_t len, int freq)
b22128ef
JM		 1657{
1658 if (len < 1)
1659 return;
1660
1661 switch (data[0]) {
1662 case WLAN_PA_VENDOR_SPECIFIC:
1663 data++;
1664 len--;
1665 if (len < 3)
1666 return;
1667 if (WPA_GET_BE24(data) != OUI_WFA)
1668 return;
1669
1670 data += 3;
1671 len -= 3;
1672 if (len < 1)
1673 return;
1674
1675 if (*data != P2P_OUI_TYPE)
1676 return;
1677
1678 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1679 break;
1680 case WLAN_PA_GAS_INITIAL_REQ:
1681 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1682 break;
1683 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1684 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1685 break;
1686 case WLAN_PA_GAS_COMEBACK_REQ:
1687 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1688 break;
1689 case WLAN_PA_GAS_COMEBACK_RESP:
1690 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1691 break;
1692 }
1693}
1694
1695
1696void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1697 const u8 *bssid, u8 category,
1698 const u8 *data, size_t len, int freq)
1699{
1700 if (category == WLAN_ACTION_PUBLIC) {
1701 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1702 return;
1703 }
1704
1705 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1706 return;
1707
1708 if (len < 4)
1709 return;
1710
1711 if (WPA_GET_BE24(data) != OUI_WFA)
1712 return;
1713 data += 3;
1714 len -= 3;
1715
1716 if (*data != P2P_OUI_TYPE)
1717 return;
1718 data++;
1719 len--;
1720
1721 /* P2P action frame */
ed496f13 1722 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1723 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1724
1725 if (len < 1)
1726 return;
1727 switch (data[0]) {
1728 case P2P_NOA:
ed496f13 1729 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1730 /* TODO */
1731 break;
1732 case P2P_PRESENCE_REQ:
1733 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1734 break;
1735 case P2P_PRESENCE_RESP:
1736 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1737 break;
1738 case P2P_GO_DISC_REQ:
1739 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1740 break;
1741 default:
ed496f13 1742 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1743 break;
1744 }
1745}
1746
1747
1748static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1749{
1750 struct p2p_data *p2p = eloop_ctx;
1751 if (p2p->go_neg_peer == NULL)
1752 return;
1753 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1754 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1755 p2p_connect_send(p2p, p2p->go_neg_peer);
1756}
1757
1758
1759static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1760{
1761 struct p2p_data *p2p = eloop_ctx;
1762 if (p2p->invite_peer == NULL)
1763 return;
1764 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
8e9f53c3
JM		 1765 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
1766 p2p->invite_dev_pw_id);
b22128ef
JM		 1767}
1768
1769
1770static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1771 const u8 *ie, size_t ie_len)
1772{
1773 struct p2p_message msg;
1774 struct p2p_device *dev;
1775
1776 os_memset(&msg, 0, sizeof(msg));
1777 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1778 {
1779 p2p_parse_free(&msg);
1780 return; /* not a P2P probe */
1781 }
1782
1783 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1784 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1785 != 0) {
1786 /* The Probe Request is not part of P2P Device Discovery. It is
1787 * not known whether the source address of the frame is the P2P
1788 * Device Address or P2P Interface Address. Do not add a new
1789 * peer entry based on this frames.
1790 */
1791 p2p_parse_free(&msg);
1792 return;
1793 }
1794
1795 dev = p2p_get_device(p2p, addr);
1796 if (dev) {
1797 if (dev->country[0] == 0 && msg.listen_channel)
1798 os_memcpy(dev->country, msg.listen_channel, 3);
acb69cec 1799 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1800 p2p_parse_free(&msg);
1801 return; /* already known */
1802 }
1803
1804 dev = p2p_create_device(p2p, addr);
1805 if (dev == NULL) {
1806 p2p_parse_free(&msg);
1807 return;
1808 }
1809
acb69cec 1810 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1811 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1812
b22128ef
JM		 1813 if (msg.listen_channel) {
1814 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 1815 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 1816 msg.listen_channel[4]);
1817 }
1818
ed496f13 1819 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 1820
9675ce35
JM		 1821 if (msg.wfd_subelems) {
1822 wpabuf_free(dev->info.wfd_subelems);
1823 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1824 }
1825
b22128ef
JM		 1826 p2p_parse_free(&msg);
1827
ed496f13 1828 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 1829 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1830 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1831 dev->info.group_capab, dev->info.device_name,
1832 dev->listen_freq);
b22128ef
JM		 1833}
1834
1835
1836struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1837 const u8 *addr,
1838 struct p2p_message *msg)
1839{
1840 struct p2p_device *dev;
1841
1842 dev = p2p_get_device(p2p, addr);
1843 if (dev) {
acb69cec 1844 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1845 return dev; /* already known */
1846 }
1847
1848 dev = p2p_create_device(p2p, addr);
1849 if (dev == NULL)
1850 return NULL;
1851
1852 p2p_add_dev_info(p2p, addr, dev, msg);
1853
1854 return dev;
1855}
1856
1857
1858static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1859{
1860 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1861 return 1;
1862 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1863 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1864 WPA_GET_BE16(&req_dev_type[6]) == 0)
1865 return 1; /* Category match with wildcard OUI/sub-category */
1866 return 0;
1867}
1868
1869
1870int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1871 size_t num_req_dev_type)
1872{
1873 size_t i;
1874 for (i = 0; i < num_req_dev_type; i++) {
1875 if (dev_type_match(dev_type, req_dev_type[i]))
1876 return 1;
1877 }
1878 return 0;
1879}
1880
1881
1882/**
1883 * p2p_match_dev_type - Match local device type with requested type
1884 * @p2p: P2P module context from p2p_init()
1885 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1886 * Returns: 1 on match, 0 on mismatch
1887 *
1888 * This function can be used to match the Requested Device Type attribute in
1889 * WPS IE with the local device types for deciding whether to reply to a Probe
1890 * Request frame.
1891 */
1892int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1893{
1894 struct wps_parse_attr attr;
1895 size_t i;
1896
1897 if (wps_parse_msg(wps, &attr))
1898 return 1; /* assume no Requested Device Type attributes */
1899
1900 if (attr.num_req_dev_type == 0)
1901 return 1; /* no Requested Device Type attributes -> match */
1902
1903 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1904 attr.num_req_dev_type))
1905 return 1; /* Own Primary Device Type matches */
1906
1907 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1908 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1909 attr.req_dev_type,
1910 attr.num_req_dev_type))
1911 return 1; /* Own Secondary Device Type matches */
1912
1913 /* No matching device type found */
1914 return 0;
1915}
1916
1917
1918struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1919{
1920 struct wpabuf *buf;
1921 u8 *len;
360182ed 1922 int pw_id = -1;
9675ce35 1923 size_t extra = 0;
b22128ef 1924
9675ce35
JM		 1925#ifdef CONFIG_WIFI_DISPLAY
1926 if (p2p->wfd_ie_probe_resp)
1927 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1928#endif /* CONFIG_WIFI_DISPLAY */
1929
1930 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 1931 if (buf == NULL)
1932 return NULL;
1933
360182ed
JM		 1934 if (p2p->go_neg_peer) {
1935 /* Advertise immediate availability of WPS credential */
1936 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1937 }
1938
33183761
JM		 1939 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
1940 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
1941 wpabuf_free(buf);
1942 return NULL;
1943 }
b22128ef 1944
9675ce35
JM		 1945#ifdef CONFIG_WIFI_DISPLAY
1946 if (p2p->wfd_ie_probe_resp)
1947 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1948#endif /* CONFIG_WIFI_DISPLAY */
1949
b22128ef
JM		 1950 /* P2P IE */
1951 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 1952 p2p_buf_add_capability(buf, p2p->dev_capab &
1953 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 1954 if (p2p->ext_listen_interval)
1955 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1956 p2p->ext_listen_interval);
1957 p2p_buf_add_device_info(buf, p2p, NULL);
1958 p2p_buf_update_ie_hdr(buf, len);
1959
1960 return buf;
1961}
1962
1963
2d43d37f
JB		 1964static enum p2p_probe_req_status
1965p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1966 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 1967{
1968 struct ieee802_11_elems elems;
1969 struct wpabuf *buf;
1970 struct ieee80211_mgmt *resp;
97c5b3c4 1971 struct p2p_message msg;
b22128ef
JM		 1972 struct wpabuf *ies;
1973
1974 if (!p2p->in_listen || !p2p->drv_in_listen) {
1975 /* not in Listen state - ignore Probe Request */
2d43d37f 1976 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 1977 }
1978
1979 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1980 ParseFailed) {
1981 /* Ignore invalid Probe Request frames */
2d43d37f 1982 return P2P_PREQ_MALFORMED;
b22128ef
JM		 1983 }
1984
1985 if (elems.p2p == NULL) {
1986 /* not a P2P probe - ignore it */
2d43d37f 1987 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 1988 }
1989
04a85e44
JM		 1990 if (dst && !is_broadcast_ether_addr(dst) &&
1991 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1992 /* Not sent to the broadcast address or our P2P Device Address
1993 */
2d43d37f 1994 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 1995 }
1996
1997 if (bssid && !is_broadcast_ether_addr(bssid)) {
1998 /* Not sent to the Wildcard BSSID */
2d43d37f 1999 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2000 }
2001
b22128ef
JM		 2002 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2003 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2004 0) {
2005 /* not using P2P Wildcard SSID - ignore */
2d43d37f 2006 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2007 }
2008
e1d52629
JM		 2009 if (supp_rates_11b_only(&elems)) {
2010 /* Indicates support for 11b rates only */
2d43d37f 2011 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2012 }
2013
97c5b3c4
JM		 2014 os_memset(&msg, 0, sizeof(msg));
2015 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2016 /* Could not parse P2P attributes */
2d43d37f 2017 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2018 }
2019
2020 if (msg.device_id &&
1c7447d0 2021 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4
JM		 2022 /* Device ID did not match */
2023 p2p_parse_free(&msg);
2d43d37f 2024 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2025 }
2026
b22128ef 2027 /* Check Requested Device Type match */
97c5b3c4
JM		 2028 if (msg.wps_attributes &&
2029 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2030 /* No match with Requested Device Type */
97c5b3c4 2031 p2p_parse_free(&msg);
2d43d37f 2032 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2033 }
97c5b3c4 2034 p2p_parse_free(&msg);
b22128ef 2035
2d43d37f
JB		 2036 if (!p2p->cfg->send_probe_resp) {
2037 /* Response generated elsewhere */
2038 return P2P_PREQ_NOT_PROCESSED;
2039 }
b22128ef 2040
ed496f13 2041 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2042
2043 /*
2044 * We do not really have a specific BSS that this frame is advertising,
2045 * so build a frame that has some information in valid format. This is
2046 * really only used for discovery purposes, not to learn exact BSS
2047 * parameters.
2048 */
2049 ies = p2p_build_probe_resp_ies(p2p);
2050 if (ies == NULL)
2d43d37f 2051 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2052
2053 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2054 if (buf == NULL) {
2055 wpabuf_free(ies);
2d43d37f 2056 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2057 }
2058
2059 resp = NULL;
2060 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2061
2062 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2063 (WLAN_FC_STYPE_PROBE_RESP << 4));
2064 os_memcpy(resp->da, addr, ETH_ALEN);
2065 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2066 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2067 resp->u.probe_resp.beacon_int = host_to_le16(100);
2068 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2069 resp->u.probe_resp.capab_info =
2070 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2071 WLAN_CAPABILITY_PRIVACY |
2072 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2073
2074 wpabuf_put_u8(buf, WLAN_EID_SSID);
2075 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2076 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2077
2078 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2079 wpabuf_put_u8(buf, 8);
2080 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2081 wpabuf_put_u8(buf, 90 / 5);
2082 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2083 wpabuf_put_u8(buf, 180 / 5);
2084 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2085 wpabuf_put_u8(buf, 360 / 5);
2086 wpabuf_put_u8(buf, 480 / 5);
2087 wpabuf_put_u8(buf, 540 / 5);
2088
2089 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2090 wpabuf_put_u8(buf, 1);
2091 wpabuf_put_u8(buf, p2p->cfg->channel);
2092
2093 wpabuf_put_buf(buf, ies);
2094 wpabuf_free(ies);
2095
2096 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2097
2098 wpabuf_free(buf);
2d43d37f
JB		 2099
2100 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2101}
2102
2103
2d43d37f
JB		 2104enum p2p_probe_req_status
2105p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2106 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2107{
2d43d37f
JB		 2108 enum p2p_probe_req_status res;
2109
b22128ef
JM		 2110 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2111
2d43d37f 2112 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2113
2114 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2115 p2p->go_neg_peer &&
c5db8e51 2116 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2117 == 0 &&
2118 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2119 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2120 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2121 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2122 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2123 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2124 }
2125
2126 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2127 p2p->invite_peer &&
a05e236b 2128 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
c5db8e51
KRK		 2129 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2130 == 0) {
b22128ef 2131 /* Received a Probe Request from Invite peer */
ed496f13 2132 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
b22128ef 2133 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2134 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2135 }
2136
2d43d37f 2137 return res;
b22128ef
JM		 2138}
2139
2140
2141static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2142 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2143{
2144 struct wpabuf *tmp;
2145 u8 *lpos;
2146 size_t tmplen;
2147 int res;
72044390 2148 u8 group_capab;
b22128ef 2149
4c08c0bd
JM		 2150 if (p2p_ie == NULL)
2151 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2152
2153 /*
2154 * (Re)Association Request - P2P IE
2155 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2156 * P2P Interface attribute (present if concurrent device and
2157 * P2P Management is enabled)
b22128ef
JM		 2158 */
2159 tmp = wpabuf_alloc(200);
2160 if (tmp == NULL)
2161 return -1;
2162
2163 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2164 group_capab = 0;
2165 if (p2p->num_groups > 0) {
2166 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2167 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2168 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2169 p2p->cross_connect)
2170 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2171 }
2172 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2173 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2174 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2175 p2p_buf_add_p2p_interface(tmp, p2p);
2176 p2p_buf_update_ie_hdr(tmp, lpos);
2177
2178 tmplen = wpabuf_len(tmp);
2179 if (tmplen > len)
2180 res = -1;
2181 else {
2182 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2183 res = tmplen;
2184 }
2185 wpabuf_free(tmp);
2186
2187 return res;
2188}
2189
2190
2191int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2192 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2193{
2194 struct wpabuf *tmp;
2195 u8 *lpos;
2196 struct p2p_device *peer;
2197 size_t tmplen;
2198 int res;
9675ce35 2199 size_t extra = 0;
b22128ef
JM		 2200
2201 if (!p2p_group)
4c08c0bd 2202 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2203
9675ce35
JM		 2204#ifdef CONFIG_WIFI_DISPLAY
2205 if (p2p->wfd_ie_assoc_req)
2206 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2207#endif /* CONFIG_WIFI_DISPLAY */
2208
b22128ef
JM		 2209 /*
2210 * (Re)Association Request - P2P IE
2211 * P2P Capability attribute (shall be present)
2212 * Extended Listen Timing (may be present)
2213 * P2P Device Info attribute (shall be present)
2214 */
9675ce35 2215 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2216 if (tmp == NULL)
2217 return -1;
2218
9675ce35
JM		 2219#ifdef CONFIG_WIFI_DISPLAY
2220 if (p2p->wfd_ie_assoc_req)
2221 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2222#endif /* CONFIG_WIFI_DISPLAY */
2223
b22128ef
JM		 2224 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2225
2226 lpos = p2p_buf_add_ie_hdr(tmp);
2227 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2228 if (p2p->ext_listen_interval)
2229 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2230 p2p->ext_listen_interval);
b22128ef
JM		 2231 p2p_buf_add_device_info(tmp, p2p, peer);
2232 p2p_buf_update_ie_hdr(tmp, lpos);
2233
2234 tmplen = wpabuf_len(tmp);
2235 if (tmplen > len)
2236 res = -1;
2237 else {
2238 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2239 res = tmplen;
2240 }
2241 wpabuf_free(tmp);
2242
2243 return res;
2244}
2245
2246
2247int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2248{
2249 struct wpabuf *p2p_ie;
2250 int ret;
2251
2252 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2253 if (p2p_ie == NULL)
2254 return 0;
2255
2256 ret = p2p_attr_text(p2p_ie, buf, end);
2257 wpabuf_free(p2p_ie);
2258 return ret;
2259}
2260
2261
c2d76aa6 2262int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2263{
0a70f34f
JM		 2264 struct p2p_message msg;
2265
0a70f34f 2266 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2267 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2268 return -1;
0a70f34f 2269
526ec4ae
JM		 2270 if (msg.p2p_device_addr) {
2271 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2272 return 0;
526ec4ae
JM		 2273 } else if (msg.device_id) {
2274 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2275 return 0;
0a70f34f 2276 }
c2d76aa6
MH		 2277 return -1;
2278}
0a70f34f 2279
c2d76aa6
MH		 2280
2281int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2282{
2283 struct wpabuf *p2p_ie;
2284 int ret;
2285
2286 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2287 P2P_IE_VENDOR_TYPE);
2288 if (p2p_ie == NULL)
2289 return -1;
2290 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2291 wpabuf_free(p2p_ie);
526ec4ae 2292 return ret;
0a70f34f
JM		 2293}
2294
2295
b22128ef
JM		 2296static void p2p_clear_go_neg(struct p2p_data *p2p)
2297{
2298 p2p->go_neg_peer = NULL;
2299 p2p_clear_timeout(p2p);
2300 p2p_set_state(p2p, P2P_IDLE);
2301}
2302
2303
2304void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2305{
2306 if (p2p->go_neg_peer == NULL) {
ed496f13 2307 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2308 return; /* No pending Group Formation */
2309 }
2310
2311 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2312 0) {
ed496f13
JM		 2313 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2314 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2315 MAC2STR(mac_addr),
2316 MAC2STR(p2p->go_neg_peer->intended_addr));
2317 return; /* Ignore unexpected peer address */
2318 }
2319
ed496f13 2320 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2321 MAC2STR(mac_addr));
2322
2323 p2p_clear_go_neg(p2p);
2324}
2325
2326
2327void p2p_group_formation_failed(struct p2p_data *p2p)
2328{
2329 if (p2p->go_neg_peer == NULL) {
ed496f13 2330 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2331 return; /* No pending Group Formation */
2332 }
2333
ed496f13 2334 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2335 MAC2STR(p2p->go_neg_peer->intended_addr));
2336
2337 p2p_clear_go_neg(p2p);
2338}
2339
2340
2341struct p2p_data * p2p_init(const struct p2p_config *cfg)
2342{
2343 struct p2p_data *p2p;
2344
2345 if (cfg->max_peers < 1)
2346 return NULL;
2347
2348 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2349 if (p2p == NULL)
2350 return NULL;
2351 p2p->cfg = (struct p2p_config *) (p2p + 1);
2352 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2353 if (cfg->dev_name)
2354 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2355 if (cfg->manufacturer)
2356 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2357 if (cfg->model_name)
2358 p2p->cfg->model_name = os_strdup(cfg->model_name);
2359 if (cfg->model_number)
2360 p2p->cfg->model_number = os_strdup(cfg->model_number);
2361 if (cfg->serial_number)
2362 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2363 if (cfg->pref_chan) {
2364 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2365 sizeof(struct p2p_channel));
2366 if (p2p->cfg->pref_chan) {
2367 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2368 cfg->num_pref_chan *
2369 sizeof(struct p2p_channel));
2370 } else
2371 p2p->cfg->num_pref_chan = 0;
2372 }
b22128ef
JM		 2373
2374 p2p->min_disc_int = 1;
2375 p2p->max_disc_int = 3;
96beff11 2376 p2p->max_disc_tu = -1;
b22128ef
JM		 2377
2378 os_get_random(&p2p->next_tie_breaker, 1);
2379 p2p->next_tie_breaker &= 0x01;
2380 if (cfg->sd_request)
2381 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2382 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2383 if (cfg->concurrent_operations)
2384 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2385 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2386
2387 dl_list_init(&p2p->devices);
2388
2389 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2390 p2p_expiration_timeout, p2p, NULL);
2391
4f219667
JM		 2392 p2p->go_timeout = 100;
2393 p2p->client_timeout = 20;
2394
51e9f228
JM		 2395 p2p_dbg(p2p, "initialized");
2396 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2397 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2398
b22128ef
JM		 2399 return p2p;
2400}
2401
2402
2403void p2p_deinit(struct p2p_data *p2p)
2404{
9675ce35
JM		 2405#ifdef CONFIG_WIFI_DISPLAY
2406 wpabuf_free(p2p->wfd_ie_beacon);
2407 wpabuf_free(p2p->wfd_ie_probe_req);
2408 wpabuf_free(p2p->wfd_ie_probe_resp);
2409 wpabuf_free(p2p->wfd_ie_assoc_req);
2410 wpabuf_free(p2p->wfd_ie_invitation);
2411 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2412 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2413 wpabuf_free(p2p->wfd_ie_go_neg);
2414 wpabuf_free(p2p->wfd_dev_info);
2415 wpabuf_free(p2p->wfd_assoc_bssid);
2416 wpabuf_free(p2p->wfd_coupled_sink_info);
2417#endif /* CONFIG_WIFI_DISPLAY */
2418
b22128ef
JM		 2419 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2420 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2421 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2422 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2423 p2p_flush(p2p);
046ef4aa 2424 p2p_free_req_dev_types(p2p);
b22128ef 2425 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2426 os_free(p2p->cfg->manufacturer);
2427 os_free(p2p->cfg->model_name);
2428 os_free(p2p->cfg->model_number);
2429 os_free(p2p->cfg->serial_number);
21d996f7 2430 os_free(p2p->cfg->pref_chan);
b22128ef 2431 os_free(p2p->groups);
18708aad 2432 wpabuf_free(p2p->sd_resp);
3f9285ff 2433 os_free(p2p->after_scan_tx);
f95cac27 2434 p2p_remove_wps_vendor_extensions(p2p);
556b30da 2435 os_free(p2p->no_go_freq.range);
b22128ef
JM		 2436 os_free(p2p);
2437}
2438
2439
2440void p2p_flush(struct p2p_data *p2p)
2441{
2442 struct p2p_device *dev, *prev;
78db55b8 2443 p2p_stop_find(p2p);
b22128ef
JM		 2444 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2445 list) {
2446 dl_list_del(&dev->list);
2447 p2p_device_free(p2p, dev);
2448 }
2449 p2p_free_sd_queries(p2p);
f44ae207
JM		 2450 os_free(p2p->after_scan_tx);
2451 p2p->after_scan_tx = NULL;
b22128ef
JM		 2452}
2453
2454
9d562b79
SS		 2455int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2456{
2457 struct p2p_device *dev;
2458
2459 dev = p2p_get_device(p2p, addr);
2460 if (dev == NULL)
2461 return -1;
2462
ed496f13 2463 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79
SS		 2464
2465 if (p2p->go_neg_peer == dev)
2466 p2p->go_neg_peer = NULL;
2467
2468 dev->wps_method = WPS_NOT_READY;
ab9e3442 2469 dev->oob_pw_id = 0;
9d562b79
SS		 2470 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2471 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2472
2473 /* Check if after_scan_tx is for this peer. If so free it */
2474 if (p2p->after_scan_tx &&
2475 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2476 os_free(p2p->after_scan_tx);
2477 p2p->after_scan_tx = NULL;
2478 }
2479
2480 return 0;
2481}
2482
2483
b22128ef
JM		 2484int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2485{
2486 os_free(p2p->cfg->dev_name);
2487 if (dev_name) {
2488 p2p->cfg->dev_name = os_strdup(dev_name);
2489 if (p2p->cfg->dev_name == NULL)
2490 return -1;
2491 } else
2492 p2p->cfg->dev_name = NULL;
2493 return 0;
2494}
2495
2496
b6e01800
JM		 2497int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2498{
2499 os_free(p2p->cfg->manufacturer);
2500 p2p->cfg->manufacturer = NULL;
2501 if (manufacturer) {
2502 p2p->cfg->manufacturer = os_strdup(manufacturer);
2503 if (p2p->cfg->manufacturer == NULL)
2504 return -1;
2505 }
2506
2507 return 0;
2508}
2509
2510
2511int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2512{
2513 os_free(p2p->cfg->model_name);
2514 p2p->cfg->model_name = NULL;
2515 if (model_name) {
2516 p2p->cfg->model_name = os_strdup(model_name);
2517 if (p2p->cfg->model_name == NULL)
2518 return -1;
2519 }
2520
2521 return 0;
2522}
2523
2524
2525int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2526{
2527 os_free(p2p->cfg->model_number);
2528 p2p->cfg->model_number = NULL;
2529 if (model_number) {
2530 p2p->cfg->model_number = os_strdup(model_number);
2531 if (p2p->cfg->model_number == NULL)
2532 return -1;
2533 }
2534
2535 return 0;
2536}
2537
2538
2539int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2540{
2541 os_free(p2p->cfg->serial_number);
2542 p2p->cfg->serial_number = NULL;
2543 if (serial_number) {
2544 p2p->cfg->serial_number = os_strdup(serial_number);
2545 if (p2p->cfg->serial_number == NULL)
2546 return -1;
2547 }
2548
2549 return 0;
2550}
2551
2552
2553void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2554{
2555 p2p->cfg->config_methods = config_methods;
2556}
2557
2558
2559void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2560{
2561 os_memcpy(p2p->cfg->uuid, uuid, 16);
2562}
2563
2564
b22128ef
JM		 2565int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2566{
2567 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2568 return 0;
2569}
2570
2571
2572int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2573 size_t num_dev_types)
2574{
2575 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2576 num_dev_types = P2P_SEC_DEVICE_TYPES;
2577 p2p->cfg->num_sec_dev_types = num_dev_types;
2578 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2579 return 0;
2580}
2581
2582
f95cac27
JMB		 2583void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2584{
2585 int i;
2586
10c5d2a5 2587 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2588 wpabuf_free(p2p->wps_vendor_ext[i]);
2589 p2p->wps_vendor_ext[i] = NULL;
2590 }
2591}
2592
2593
2594int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2595 const struct wpabuf *vendor_ext)
2596{
2597 int i;
2598
2599 if (vendor_ext == NULL)
2600 return -1;
2601
10c5d2a5 2602 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2603 if (p2p->wps_vendor_ext[i] == NULL)
2604 break;
2605 }
10c5d2a5 2606 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2607 return -1;
2608
2609 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2610 if (p2p->wps_vendor_ext[i] == NULL)
2611 return -1;
2612
2613 return 0;
2614}
2615
2616
b22128ef
JM		 2617int p2p_set_country(struct p2p_data *p2p, const char *country)
2618{
2619 os_memcpy(p2p->cfg->country, country, 3);
2620 return 0;
2621}
2622
2623
2624void p2p_continue_find(struct p2p_data *p2p)
2625{
2626 struct p2p_device *dev;
2627 p2p_set_state(p2p, P2P_SEARCH);
2628 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2629 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
2630 if (p2p_start_sd(p2p, dev) == 0)
2631 return;
2632 else
2633 break;
10c4edde
JM		 2634 } else if (dev->req_config_methods &&
2635 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
ed496f13 2636 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
10c4edde 2637 MACSTR " (config methods 0x%x)",
c5db8e51 2638 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2639 dev->req_config_methods);
1ef2f7ff 2640 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2641 return;
2642 }
2643 }
2644
96beff11 2645 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2646}
2647
2648
2649static void p2p_sd_cb(struct p2p_data *p2p, int success)
2650{
ed496f13 2651 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 2652 success);
2653 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2654
2655 if (!success) {
2656 if (p2p->sd_peer) {
2657 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2658 p2p->sd_peer = NULL;
2659 }
2660 p2p_continue_find(p2p);
2661 return;
2662 }
2663
2664 if (p2p->sd_peer == NULL) {
ed496f13 2665 p2p_dbg(p2p, "No SD peer entry known");
b22128ef
JM		 2666 p2p_continue_find(p2p);
2667 return;
2668 }
2669
2670 /* Wait for response from the peer */
2671 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2672 p2p_set_timeout(p2p, 0, 200000);
2673}
2674
6b56cc2d
JS		 2675
2676/**
2677 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2678 * @p2p: P2P module context from p2p_init()
2679 */
19df9b07 2680static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2681{
2682 struct p2p_device *dev;
2683
2684 if (p2p->state != P2P_IDLE)
2685 return;
2686
2687 /*
2688 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2689 * requested.
6b56cc2d
JS		 2690 */
2691
2692 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2693 if (os_memcmp(p2p->pending_pd_devaddr,
2694 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2695 continue;
2696 if (!dev->req_config_methods)
2697 continue;
6b56cc2d 2698
ed496f13 2699 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 2700 MACSTR " (config methods 0x%x)",
2701 MAC2STR(dev->info.p2p_device_addr),
2702 dev->req_config_methods);
175171ac 2703 p2p_send_prov_disc_req(p2p, dev,
8d82c210
JM		 2704 dev->flags & P2P_DEV_PD_FOR_JOIN,
2705 p2p->pd_force_freq);
6b56cc2d
JS		 2706 return;
2707 }
2708}
2709
2710
b22128ef
JM		 2711static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2712{
ed496f13 2713 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 2714 success);
6b56cc2d
JS		 2715
2716 /*
2717 * Postpone resetting the pending action state till after we actually
2718 * time out. This allows us to take some action like notifying any
2719 * interested parties about no response to the request.
2720 *
2721 * When the timer (below) goes off we check in IDLE, SEARCH, or
2722 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2723 * requests in, if this was still pending and then raise notification.
2724 */
b22128ef
JM		 2725
2726 if (!success) {
6b56cc2d
JS		 2727 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2728
488f4a71
JM		 2729 if (p2p->user_initiated_pd &&
2730 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2731 {
2732 /* Retry request from timeout to avoid busy loops */
2733 p2p->pending_action_state = P2P_PENDING_PD;
2734 p2p_set_timeout(p2p, 0, 50000);
2735 } else if (p2p->state != P2P_IDLE)
b22128ef 2736 p2p_continue_find(p2p);
6b56cc2d
JS		 2737 else if (p2p->user_initiated_pd) {
2738 p2p->pending_action_state = P2P_PENDING_PD;
2739 p2p_set_timeout(p2p, 0, 300000);
2740 }
b22128ef
JM		 2741 return;
2742 }
2743
6b56cc2d
JS		 2744 /*
2745 * This postponing, of resetting pending_action_state, needs to be
2746 * done only for user initiated PD requests and not internal ones.
2747 */
2748 if (p2p->user_initiated_pd)
2749 p2p->pending_action_state = P2P_PENDING_PD;
2750 else
2751 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2752
b22128ef
JM		 2753 /* Wait for response from the peer */
2754 if (p2p->state == P2P_SEARCH)
2755 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2756 p2p_set_timeout(p2p, 0, 200000);
2757}
2758
2759
2760int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
acb69cec 2761 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 2762 size_t ies_len)
b22128ef 2763{
acb69cec 2764 if (os_reltime_before(rx_time, &p2p->find_start)) {
a5b5e830
JM		 2765 /*
2766 * The driver may have cached (e.g., in cfg80211 BSS table) the
2767 * scan results for relatively long time. To avoid reporting
2768 * stale information, update P2P peers only based on results
2769 * that have based on frames received after the last p2p_find
2770 * operation was started.
2771 */
ed496f13
JM		 2772 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
2773 " (rx_time=%u.%06u)",
a5b5e830
JM		 2774 MAC2STR(bssid), (unsigned int) rx_time->sec,
2775 (unsigned int) rx_time->usec);
2776 return 0;
2777 }
2778
c5f10e80 2779 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 2780
b22128ef
JM		 2781 return 0;
2782}
2783
2784
2785void p2p_scan_res_handled(struct p2p_data *p2p)
2786{
2787 if (!p2p->p2p_scan_running) {
ed496f13 2788 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 2789 }
2790 p2p->p2p_scan_running = 0;
2791 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2792
2793 if (p2p_run_after_scan(p2p))
2794 return;
2795 if (p2p->state == P2P_SEARCH)
2796 p2p_continue_find(p2p);
2797}
2798
2799
6d92fa6e 2800void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2801{
9675ce35
JM		 2802 u8 *len;
2803
2804#ifdef CONFIG_WIFI_DISPLAY
2805 if (p2p->wfd_ie_probe_req)
2806 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2807#endif /* CONFIG_WIFI_DISPLAY */
2808
2809 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2810 p2p_buf_add_capability(ies, p2p->dev_capab &
2811 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2812 if (dev_id)
2813 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2814 if (p2p->cfg->reg_class && p2p->cfg->channel)
2815 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2816 p2p->cfg->reg_class,
2817 p2p->cfg->channel);
2818 if (p2p->ext_listen_interval)
2819 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2820 p2p->ext_listen_interval);
2821 /* TODO: p2p_buf_add_operating_channel() if GO */
2822 p2p_buf_update_ie_hdr(ies, len);
2823}
2824
2825
206e1f42
JM		 2826size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2827{
9675ce35
JM		 2828 size_t len = 100;
2829
2830#ifdef CONFIG_WIFI_DISPLAY
2831 if (p2p && p2p->wfd_ie_probe_req)
2832 len += wpabuf_len(p2p->wfd_ie_probe_req);
2833#endif /* CONFIG_WIFI_DISPLAY */
2834
2835 return len;
206e1f42
JM		 2836}
2837
2838
b22128ef
JM		 2839int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2840{
2841 return p2p_attr_text(p2p_ie, buf, end);
2842}
2843
2844
2845static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2846{
2847 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 2848 int timeout;
b22128ef 2849
ed496f13 2850 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 2851
2852 if (dev == NULL) {
ed496f13 2853 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 2854 return;
2855 }
2856
2857 if (success) {
b22128ef
JM		 2858 if (dev->flags & P2P_DEV_USER_REJECTED) {
2859 p2p_set_state(p2p, P2P_IDLE);
2860 return;
2861 }
a1d2ab32
NKG		 2862 } else if (dev->go_neg_req_sent) {
2863 /* Cancel the increment from p2p_connect_send() on failure */
2864 dev->go_neg_req_sent--;
b22128ef
JM		 2865 }
2866
2867 if (!success &&
c5db8e51 2868 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 2869 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 2870 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 2871 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 2872 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2873 p2p_send_dev_disc_req(p2p, dev);
2874 return;
2875 }
2876
2877 /*
2878 * Use P2P find, if needed, to find the other device from its listen
2879 * channel.
2880 */
2881 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 2882 timeout = success ? 500000 : 100000;
2883 if (!success && p2p->go_neg_peer &&
2884 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
2885 unsigned int r;
2886 /*
2887 * Peer is expected to wait our response and we will skip the
2888 * listen phase. Add some randomness to the wait time here to
2889 * make it less likely to hit cases where we could end up in
2890 * sync with peer not listening.
2891 */
2892 os_get_random((u8 *) &r, sizeof(r));
2893 timeout += r % 100000;
2894 }
2895 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 2896}
2897
2898
2899static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2900{
ed496f13 2901 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 2902 success);
2903 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 2904 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 2905 return;
2906 }
2907 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 2908 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 2909}
2910
2911
7800d45c
JM		 2912static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
2913 const u8 *addr)
b22128ef 2914{
ed496f13 2915 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272
JM		 2916 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2917 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2918 p2p->go_neg_peer->status);
7800d45c
JM		 2919 } else if (success) {
2920 struct p2p_device *dev;
2921 dev = p2p_get_device(p2p, addr);
2922 if (dev &&
2923 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
2924 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 2925 }
b22128ef
JM		 2926}
2927
2928
93b7ddd0
JM		 2929static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2930 enum p2p_send_action_result result)
b22128ef
JM		 2931{
2932 struct p2p_device *dev;
2933
ed496f13 2934 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
b22128ef 2935 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 2936 if (result == P2P_SEND_ACTION_FAILED) {
2937 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2938 return;
2939 }
2940 if (result == P2P_SEND_ACTION_NO_ACK) {
b22128ef
JM		 2941 /*
2942 * It looks like the TX status for GO Negotiation Confirm is
2943 * often showing failure even when the peer has actually
2944 * received the frame. Since the peer may change channels
2945 * immediately after having received the frame, we may not see
2946 * an Ack for retries, so just dropping a single frame may
2947 * trigger this. To allow the group formation to succeed if the
2948 * peer did indeed receive the frame, continue regardless of
2949 * the TX status.
2950 */
ed496f13 2951 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 2952 }
2953
2954 dev = p2p->go_neg_peer;
2955 if (dev == NULL)
2956 return;
2957
2958 p2p_go_complete(p2p, dev);
2959}
2960
2961
2962void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 2963 const u8 *src, const u8 *bssid,
2964 enum p2p_send_action_result result)
b22128ef
JM		 2965{
2966 enum p2p_pending_action_state state;
93b7ddd0 2967 int success;
b22128ef 2968
ed496f13 2969 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 2970 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 2971 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 2972 MAC2STR(bssid), result);
2973 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 2974 state = p2p->pending_action_state;
2975 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2976 switch (state) {
2977 case P2P_NO_PENDING_ACTION:
63a965c3
JM		 2978 if (p2p->after_scan_tx_in_progress) {
2979 p2p->after_scan_tx_in_progress = 0;
2980 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
2981 p2p_run_after_scan(p2p))
2982 break;
2983 if (p2p->state == P2P_SEARCH) {
ed496f13 2984 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
63a965c3
JM		 2985 p2p_continue_find(p2p);
2986 }
2987 }
b22128ef
JM		 2988 break;
2989 case P2P_PENDING_GO_NEG_REQUEST:
2990 p2p_go_neg_req_cb(p2p, success);
2991 break;
2992 case P2P_PENDING_GO_NEG_RESPONSE:
2993 p2p_go_neg_resp_cb(p2p, success);
2994 break;
2995 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 2996 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 2997 break;
2998 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 2999 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 3000 break;
3001 case P2P_PENDING_SD:
3002 p2p_sd_cb(p2p, success);
3003 break;
3004 case P2P_PENDING_PD:
3005 p2p_prov_disc_cb(p2p, success);
3006 break;
3007 case P2P_PENDING_INVITATION_REQUEST:
3008 p2p_invitation_req_cb(p2p, success);
3009 break;
3010 case P2P_PENDING_INVITATION_RESPONSE:
3011 p2p_invitation_resp_cb(p2p, success);
3012 break;
3013 case P2P_PENDING_DEV_DISC_REQUEST:
3014 p2p_dev_disc_req_cb(p2p, success);
3015 break;
3016 case P2P_PENDING_DEV_DISC_RESPONSE:
3017 p2p_dev_disc_resp_cb(p2p, success);
3018 break;
3019 case P2P_PENDING_GO_DISC_REQ:
3020 p2p_go_disc_req_cb(p2p, success);
3021 break;
3022 }
63a965c3
JM		 3023
3024 p2p->after_scan_tx_in_progress = 0;
b22128ef
JM		 3025}
3026
3027
3028void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3029 unsigned int duration)
3030{
3031 if (freq == p2p->pending_client_disc_freq) {
ed496f13 3032 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 3033 p2p->pending_client_disc_freq = 0;
3034 return;
3035 }
3036
3037 if (freq != p2p->pending_listen_freq) {
ed496f13 3038 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3039 freq, duration, p2p->pending_listen_freq);
3040 return;
3041 }
3042
ed496f13 3043 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3044 p2p->pending_listen_sec, p2p->pending_listen_usec,
3045 p2p->pending_listen_freq);
3046 p2p->in_listen = 1;
0b8889d8 3047 p2p->drv_in_listen = freq;
b22128ef
JM		 3048 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3049 /*
3050 * Add 20 msec extra wait to avoid race condition with driver
3051 * remain-on-channel end event, i.e., give driver more time to
3052 * complete the operation before our timeout expires.
3053 */
3054 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3055 p2p->pending_listen_usec + 20000);
3056 }
3057
3058 p2p->pending_listen_freq = 0;
3059}
3060
3061
3062int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3063{
ed496f13 3064 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3065 p2p->drv_in_listen = 0;
3066 if (p2p->in_listen)
3067 return 0; /* Internal timeout will trigger the next step */
3068
3069 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3070 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3071 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
e24cf97c
JM		 3072 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3073 return 0;
3074 }
3075
b22128ef
JM		 3076 p2p_set_state(p2p, P2P_CONNECT);
3077 p2p_connect_send(p2p, p2p->go_neg_peer);
3078 return 1;
3079 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3080 if (p2p->p2p_scan_running) {
3081 /*
3082 * Search is already in progress. This can happen if
3083 * an Action frame RX is reported immediately after
3084 * the end of a remain-on-channel operation and the
3085 * response frame to that is sent using an offchannel
3086 * operation while in p2p_find. Avoid an attempt to
3087 * restart a scan here.
3088 */
ed496f13 3089 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3090 return 1;
3091 }
3fe8b68d
JM		 3092 if (p2p->pending_listen_freq) {
3093 /*
3094 * Better wait a bit if the driver is unable to start
3095 * offchannel operation for some reason. p2p_search()
3096 * will be started from internal timeout.
3097 */
ed496f13 3098 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3099 p2p_set_timeout(p2p, 0, 100000);
3100 return 1;
3101 }
37448ede 3102 if (p2p->search_delay) {
ed496f13 3103 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3104 p2p->search_delay);
3105 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3106 (p2p->search_delay % 1000) * 1000);
3107 return 1;
3108 }
b22128ef
JM		 3109 p2p_search(p2p);
3110 return 1;
3111 }
3112
3113 return 0;
3114}
3115
3116
3117static void p2p_timeout_connect(struct p2p_data *p2p)
3118{
3119 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3120 if (p2p->go_neg_peer &&
3121 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3122 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
579a8098
JM		 3123 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3124 return;
3125 }
fb8984fd
JM		 3126 if (p2p->go_neg_peer &&
3127 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3128 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3129 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3130 p2p_connect_send(p2p, p2p->go_neg_peer);
3131 return;
3132 }
fdd48ff6
JM		 3133 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3134 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3135 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3136 p2p_set_timeout(p2p, 0, 30000);
3137 return;
3138 }
b22128ef 3139 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3140 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3141}
3142
3143
3144static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3145{
3146 if (p2p->go_neg_peer) {
3147 if (p2p->drv_in_listen) {
ed496f13 3148 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3149 return;
3150 }
9dac8c3e
FM		 3151
3152 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3153 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
9dac8c3e
FM		 3154 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3155 return;
3156 }
3157
b22128ef
JM		 3158 p2p_set_state(p2p, P2P_CONNECT);
3159 p2p_connect_send(p2p, p2p->go_neg_peer);
3160 } else
3161 p2p_set_state(p2p, P2P_IDLE);
3162}
3163
3164
3165static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3166{
b22128ef 3167 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
a2d63657
RR		 3168
3169 if (p2p->cfg->is_concurrent_session_active &&
3170 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3171 p2p_set_timeout(p2p, 0, 500000);
3172 else
3173 p2p_set_timeout(p2p, 0, 200000);
b22128ef
JM		 3174}
3175
3176
3177static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3178{
3179 struct p2p_device *dev = p2p->go_neg_peer;
3180
3181 if (dev == NULL) {
ed496f13 3182 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3183 return;
3184 }
3185
3186 dev->wait_count++;
3187 if (dev->wait_count >= 120) {
ed496f13 3188 p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation");
b22128ef
JM		 3189 p2p_go_neg_failed(p2p, dev, -1);
3190 return;
3191 }
3192
ed496f13 3193 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3194 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3195 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3196}
3197
3198
3199static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3200{
ed496f13 3201 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3202 if (p2p->sd_peer) {
3203 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3204 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
3205 p2p->sd_peer = NULL;
3206 }
3207 p2p_continue_find(p2p);
3208}
3209
3210
3211static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3212{
ed496f13 3213 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3214 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3215 p2p_continue_find(p2p);
3216}
3217
3218
6b56cc2d
JS		 3219static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3220{
3221 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3222
3223 /*
3224 * For user initiated PD requests that we have not gotten any responses
3225 * for while in IDLE state, we retry them a couple of times before
3226 * giving up.
3227 */
3228 if (!p2p->user_initiated_pd)
3229 return;
3230
ed496f13 3231 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 3232
3233 if (p2p->pd_retries) {
3234 p2p->pd_retries--;
3235 p2p_retry_pd(p2p);
3236 } else {
175171ac
JM		 3237 struct p2p_device *dev;
3238 int for_join = 0;
3239
3240 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3241 if (os_memcmp(p2p->pending_pd_devaddr,
3242 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3243 continue;
3244 if (dev->req_config_methods &&
3245 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3246 for_join = 1;
3247 }
3248
349b213c
JS		 3249 if (p2p->cfg->prov_disc_fail)
3250 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3251 p2p->pending_pd_devaddr,
175171ac
JM		 3252 for_join ?
3253 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3254 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3255 p2p_reset_pending_pd(p2p);
3256 }
3257}
3258
3259
b22128ef
JM		 3260static void p2p_timeout_invite(struct p2p_data *p2p)
3261{
3262 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3263 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3264 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3265 /*
3266 * Better remain on operating channel instead of listen channel
3267 * when running a group.
3268 */
ed496f13 3269 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 3270 p2p_set_timeout(p2p, 0, 100000);
3271 return;
3272 }
96beff11 3273 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3274}
3275
3276
3277static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3278{
3279 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3280 p2p_set_state(p2p, P2P_INVITE);
3281 p2p_invite_send(p2p, p2p->invite_peer,
8e9f53c3 3282 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
b22128ef
JM		 3283 } else {
3284 if (p2p->invite_peer) {
ed496f13 3285 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 3286 if (p2p->cfg->invitation_result)
3287 p2p->cfg->invitation_result(
dbca75f8 3288 p2p->cfg->cb_ctx, -1, NULL, NULL,
dcd25d4c
VKE		 3289 p2p->invite_peer->info.p2p_device_addr,
3290 0);
b22128ef
JM		 3291 }
3292 p2p_set_state(p2p, P2P_IDLE);
3293 }
3294}
3295
3296
3297static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3298{
3299 struct p2p_data *p2p = eloop_ctx;
3300
ed496f13 3301 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3302
3303 p2p->in_listen = 0;
3304
3305 switch (p2p->state) {
3306 case P2P_IDLE:
6b56cc2d
JS		 3307 /* Check if we timed out waiting for PD req */
3308 if (p2p->pending_action_state == P2P_PENDING_PD)
3309 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3310 break;
3311 case P2P_SEARCH:
6b56cc2d
JS		 3312 /* Check if we timed out waiting for PD req */
3313 if (p2p->pending_action_state == P2P_PENDING_PD)
3314 p2p_timeout_prov_disc_req(p2p);
37448ede 3315 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 3316 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3317 p2p->search_delay);
3318 p2p->in_search_delay = 1;
3319 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3320 (p2p->search_delay % 1000) * 1000);
3321 break;
3322 }
3323 p2p->in_search_delay = 0;
b22128ef
JM		 3324 p2p_search(p2p);
3325 break;
3326 case P2P_CONNECT:
3327 p2p_timeout_connect(p2p);
3328 break;
3329 case P2P_CONNECT_LISTEN:
3330 p2p_timeout_connect_listen(p2p);
3331 break;
3332 case P2P_GO_NEG:
3333 break;
3334 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3335 /* Check if we timed out waiting for PD req */
3336 if (p2p->pending_action_state == P2P_PENDING_PD)
3337 p2p_timeout_prov_disc_req(p2p);
3338
b22128ef 3339 if (p2p->ext_listen_only) {
ed496f13 3340 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 3341 p2p->ext_listen_only = 0;
3342 p2p_set_state(p2p, P2P_IDLE);
3343 }
3344 break;
3345 case P2P_WAIT_PEER_CONNECT:
3346 p2p_timeout_wait_peer_connect(p2p);
3347 break;
3348 case P2P_WAIT_PEER_IDLE:
3349 p2p_timeout_wait_peer_idle(p2p);
3350 break;
3351 case P2P_SD_DURING_FIND:
3352 p2p_timeout_sd_during_find(p2p);
3353 break;
3354 case P2P_PROVISIONING:
3355 break;
3356 case P2P_PD_DURING_FIND:
3357 p2p_timeout_prov_disc_during_find(p2p);
3358 break;
3359 case P2P_INVITE:
3360 p2p_timeout_invite(p2p);
3361 break;
3362 case P2P_INVITE_LISTEN:
3363 p2p_timeout_invite_listen(p2p);
3364 break;
3365 }
3366}
3367
3368
3369int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3370{
3371 struct p2p_device *dev;
3372
3373 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 3374 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3375 MACSTR, MAC2STR(peer_addr));
b22128ef 3376 if (dev == NULL) {
ed496f13 3377 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 3378 return -1;
3379 }
3380 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3381 dev->flags |= P2P_DEV_USER_REJECTED;
3382 return 0;
3383}
3384
3385
e5a359cf 3386const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3387{
3388 switch (method) {
3389 case WPS_NOT_READY:
3390 return "not-ready";
b22128ef
JM		 3391 case WPS_PIN_DISPLAY:
3392 return "Display";
3393 case WPS_PIN_KEYPAD:
3394 return "Keypad";
3395 case WPS_PBC:
3396 return "PBC";
c00ab85f
JM		 3397 case WPS_NFC:
3398 return "NFC";
b22128ef
JM		 3399 }
3400
3401 return "??";
3402}
3403
3404
3405static const char * p2p_go_state_text(enum p2p_go_state go_state)
3406{
3407 switch (go_state) {
3408 case UNKNOWN_GO:
3409 return "unknown";
3410 case LOCAL_GO:
3411 return "local";
3412 case REMOTE_GO:
3413 return "remote";
3414 }
3415
3416 return "??";
3417}
3418
3419
b3ffc80b
JM		 3420const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3421 const u8 *addr, int next)
b22128ef
JM		 3422{
3423 struct p2p_device *dev;
b22128ef
JM		 3424
3425 if (addr)
3426 dev = p2p_get_device(p2p, addr);
3427 else
3428 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3429
3430 if (dev && next) {
3431 dev = dl_list_first(&dev->list, struct p2p_device, list);
3432 if (&dev->list == &p2p->devices)
3433 dev = NULL;
3434 }
3435
3436 if (dev == NULL)
b3ffc80b
JM		 3437 return NULL;
3438
3439 return &dev->info;
3440}
3441
3442
3443int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3444 char *buf, size_t buflen)
3445{
3446 struct p2p_device *dev;
3447 int res;
3448 char *pos, *end;
acb69cec 3449 struct os_reltime now;
b3ffc80b
JM		 3450
3451 if (info == NULL)
b22128ef
JM		 3452 return -1;
3453
b3ffc80b
JM		 3454 dev = (struct p2p_device *) (((u8 *) info) -
3455 offsetof(struct p2p_device, info));
3456
b22128ef
JM		 3457 pos = buf;
3458 end = buf + buflen;
3459
acb69cec 3460 os_get_reltime(&now);
b22128ef
JM		 3461 res = os_snprintf(pos, end - pos,
3462 "age=%d\n"
3463 "listen_freq=%d\n"
b22128ef
JM		 3464 "wps_method=%s\n"
3465 "interface_addr=" MACSTR "\n"
3466 "member_in_go_dev=" MACSTR "\n"
3467 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3468 "go_neg_req_sent=%d\n"
3469 "go_state=%s\n"
3470 "dialog_token=%u\n"
3471 "intended_addr=" MACSTR "\n"
3472 "country=%c%c\n"
3473 "oper_freq=%d\n"
3474 "req_config_methods=0x%x\n"
10c4edde 3475 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef
JM		 3476 "status=%d\n"
3477 "wait_count=%u\n"
3478 "invitation_reqs=%u\n",
3479 (int) (now.sec - dev->last_seen.sec),
3480 dev->listen_freq,
b22128ef
JM		 3481 p2p_wps_method_text(dev->wps_method),
3482 MAC2STR(dev->interface_addr),
3483 MAC2STR(dev->member_in_go_dev),
3484 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3485 dev->go_neg_req_sent,
3486 p2p_go_state_text(dev->go_state),
3487 dev->dialog_token,
3488 MAC2STR(dev->intended_addr),
3489 dev->country[0] ? dev->country[0] : '_',
3490 dev->country[1] ? dev->country[1] : '_',
3491 dev->oper_freq,
3492 dev->req_config_methods,
3493 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3494 "[PROBE_REQ_ONLY]" : "",
3495 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3496 dev->flags & P2P_DEV_NOT_YET_READY ?
3497 "[NOT_YET_READY]" : "",
3498 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
3499 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
3500 "",
3501 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3502 "[PD_PEER_DISPLAY]" : "",
3503 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3504 "[PD_PEER_KEYPAD]" : "",
3505 dev->flags & P2P_DEV_USER_REJECTED ?
3506 "[USER_REJECTED]" : "",
3507 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3508 "[PEER_WAITING_RESPONSE]" : "",
3509 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3510 "[PREFER_PERSISTENT_GROUP]" : "",
3511 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3512 "[WAIT_GO_NEG_RESPONSE]" : "",
3513 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3514 "[WAIT_GO_NEG_CONFIRM]" : "",
3515 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3516 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3517 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3518 "[FORCE_FREQ]" : "",
3519 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3520 "[PD_FOR_JOIN]" : "",
b22128ef
JM		 3521 dev->status,
3522 dev->wait_count,
3523 dev->invitation_reqs);
3524 if (res < 0 || res >= end - pos)
3525 return pos - buf;
3526 pos += res;
3527
3528 if (dev->ext_listen_period) {
3529 res = os_snprintf(pos, end - pos,
3530 "ext_listen_period=%u\n"
3531 "ext_listen_interval=%u\n",
3532 dev->ext_listen_period,
3533 dev->ext_listen_interval);
3534 if (res < 0 || res >= end - pos)
3535 return pos - buf;
3536 pos += res;
3537 }
3538
3539 if (dev->oper_ssid_len) {
3540 res = os_snprintf(pos, end - pos,
3541 "oper_ssid=%s\n",
3542 wpa_ssid_txt(dev->oper_ssid,
3543 dev->oper_ssid_len));
3544 if (res < 0 || res >= end - pos)
3545 return pos - buf;
3546 pos += res;
3547 }
3548
9675ce35
JM		 3549#ifdef CONFIG_WIFI_DISPLAY
3550 if (dev->info.wfd_subelems) {
3551 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3552 if (res < 0 || res >= end - pos)
3553 return pos - buf;
3554 pos += res;
3555
3556 pos += wpa_snprintf_hex(pos, end - pos,
3557 wpabuf_head(dev->info.wfd_subelems),
3558 wpabuf_len(dev->info.wfd_subelems));
3559
3560 res = os_snprintf(pos, end - pos, "\n");
3561 if (res < 0 || res >= end - pos)
3562 return pos - buf;
3563 pos += res;
3564 }
3565#endif /* CONFIG_WIFI_DISPLAY */
3566
b22128ef
JM		 3567 return pos - buf;
3568}
3569
3570
b3bcc0f5
JM		 3571int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3572{
3573 return p2p_get_device(p2p, addr) != NULL;
3574}
3575
3576
b22128ef
JM		 3577void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3578{
3579 if (enabled) {
ed496f13 3580 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 3581 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3582 } else {
ed496f13 3583 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 3584 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3585 }
3586}
3587
3588
3589static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3590 u32 duration2, u32 interval2)
3591{
3592 struct wpabuf *req;
3593 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3594 u8 *len;
3595
3596 req = wpabuf_alloc(100);
3597 if (req == NULL)
3598 return NULL;
3599
3600 if (duration1 || interval1) {
3601 os_memset(&desc1, 0, sizeof(desc1));
3602 desc1.count_type = 1;
3603 desc1.duration = duration1;
3604 desc1.interval = interval1;
3605 ptr1 = &desc1;
3606
3607 if (duration2 || interval2) {
3608 os_memset(&desc2, 0, sizeof(desc2));
3609 desc2.count_type = 2;
3610 desc2.duration = duration2;
3611 desc2.interval = interval2;
3612 ptr2 = &desc2;
3613 }
3614 }
3615
3616 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3617 len = p2p_buf_add_ie_hdr(req);
3618 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3619 p2p_buf_update_ie_hdr(req, len);
3620
3621 return req;
3622}
3623
3624
3625int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3626 const u8 *own_interface_addr, unsigned int freq,
3627 u32 duration1, u32 interval1, u32 duration2,
3628 u32 interval2)
3629{
3630 struct wpabuf *req;
3631
ed496f13
JM		 3632 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
3633 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
3634 "dur2=%u int2=%u",
b22128ef
JM		 3635 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3636 freq, duration1, interval1, duration2, interval2);
3637
3638 req = p2p_build_presence_req(duration1, interval1, duration2,
3639 interval2);
3640 if (req == NULL)
3641 return -1;
3642
3643 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3644 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3645 go_interface_addr,
3646 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 3647 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3648 }
3649 wpabuf_free(req);
3650
3651 return 0;
3652}
3653
3654
3655static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3656 size_t noa_len, u8 dialog_token)
3657{
3658 struct wpabuf *resp;
3659 u8 *len;
3660
3661 resp = wpabuf_alloc(100 + noa_len);
3662 if (resp == NULL)
3663 return NULL;
3664
3665 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3666 len = p2p_buf_add_ie_hdr(resp);
3667 p2p_buf_add_status(resp, status);
3668 if (noa) {
3669 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3670 wpabuf_put_le16(resp, noa_len);
3671 wpabuf_put_data(resp, noa, noa_len);
3672 } else
3673 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3674 p2p_buf_update_ie_hdr(resp, len);
3675
3676 return resp;
3677}
3678
3679
3680static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3681 const u8 *sa, const u8 *data, size_t len,
3682 int rx_freq)
3683{
3684 struct p2p_message msg;
3685 u8 status;
3686 struct wpabuf *resp;
3687 size_t g;
3688 struct p2p_group *group = NULL;
3689 int parsed = 0;
3690 u8 noa[50];
3691 int noa_len;
3692
ed496f13 3693 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 3694
3695 for (g = 0; g < p2p->num_groups; g++) {
3696 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3697 ETH_ALEN) == 0) {
3698 group = p2p->groups[g];
3699 break;
3700 }
3701 }
3702 if (group == NULL) {
ed496f13 3703 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 3704 MACSTR, MAC2STR(da));
3705 return;
3706 }
3707
3708 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3709 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 3710 status = P2P_SC_FAIL_INVALID_PARAMS;
3711 goto fail;
3712 }
3713 parsed = 1;
3714
3715 if (msg.noa == NULL) {
ed496f13 3716 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 3717 status = P2P_SC_FAIL_INVALID_PARAMS;
3718 goto fail;
3719 }
3720
3721 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3722
3723fail:
3724 if (p2p->cfg->get_noa)
3725 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3726 sizeof(noa));
3727 else
3728 noa_len = -1;
3729 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3730 noa_len > 0 ? noa_len : 0,
3731 msg.dialog_token);
3732 if (parsed)
3733 p2p_parse_free(&msg);
3734 if (resp == NULL)
3735 return;
3736
3737 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3738 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3739 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 3740 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3741 }
3742 wpabuf_free(resp);
3743}
3744
3745
3746static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3747 const u8 *sa, const u8 *data, size_t len)
3748{
3749 struct p2p_message msg;
3750
ed496f13 3751 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 3752
3753 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3754 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 3755 return;
3756 }
3757
3758 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 3759 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 3760 p2p_parse_free(&msg);
3761 return;
3762 }
3763
c64e3a08
JM		 3764 if (p2p->cfg->presence_resp) {
3765 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
3766 msg.noa, msg.noa_len);
3767 }
3768
b22128ef 3769 if (*msg.status) {
ed496f13 3770 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 3771 *msg.status);
3772 p2p_parse_free(&msg);
3773 return;
3774 }
3775
ed496f13 3776 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 3777 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3778 msg.noa, msg.noa_len);
3779 /* TODO: process NoA */
3780 p2p_parse_free(&msg);
3781}
3782
3783
3784static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3785{
3786 struct p2p_data *p2p = eloop_ctx;
3787
3788 if (p2p->ext_listen_interval) {
3789 /* Schedule next extended listen timeout */
3790 eloop_register_timeout(p2p->ext_listen_interval_sec,
3791 p2p->ext_listen_interval_usec,
3792 p2p_ext_listen_timeout, p2p, NULL);
3793 }
3794
f7a69057
JM		 3795 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3796 /*
3797 * This should not really happen, but it looks like the Listen
3798 * command may fail is something else (e.g., a scan) was
3799 * running at an inconvenient time. As a workaround, allow new
3800 * Extended Listen operation to be started.
3801 */
ed496f13 3802 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 3803 p2p->ext_listen_only = 0;
3804 p2p_set_state(p2p, P2P_IDLE);
3805 }
3806
b22128ef 3807 if (p2p->state != P2P_IDLE) {
ed496f13 3808 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3809 return;
3810 }
3811
ed496f13 3812 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 3813 p2p->ext_listen_only = 1;
3814 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 3815 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 3816 p2p->ext_listen_only = 0;
3817 }
3818}
3819
3820
3821int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3822 unsigned int interval)
3823{
3824 if (period > 65535 || interval > 65535 || period > interval ||
3825 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 3826 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
3827 period, interval);
b22128ef
JM		 3828 return -1;
3829 }
3830
3831 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3832
3833 if (interval == 0) {
ed496f13 3834 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 3835 p2p->ext_listen_period = 0;
3836 p2p->ext_listen_interval = 0;
3837 return 0;
3838 }
3839
ed496f13
JM		 3840 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
3841 period, interval);
b22128ef
JM		 3842 p2p->ext_listen_period = period;
3843 p2p->ext_listen_interval = interval;
3844 p2p->ext_listen_interval_sec = interval / 1000;
3845 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3846
3847 eloop_register_timeout(p2p->ext_listen_interval_sec,
3848 p2p->ext_listen_interval_usec,
3849 p2p_ext_listen_timeout, p2p, NULL);
3850
3851 return 0;
3852}
3853
3854
3855void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3856 const u8 *ie, size_t ie_len)
3857{
3858 struct p2p_message msg;
3859
3860 if (bssid == NULL || ie == NULL)
3861 return;
3862
3863 os_memset(&msg, 0, sizeof(msg));
3864 if (p2p_parse_ies(ie, ie_len, &msg))
3865 return;
04c366cb
EL		 3866 if (msg.minor_reason_code == NULL) {
3867 p2p_parse_free(&msg);
b22128ef 3868 return;
04c366cb 3869 }
b22128ef 3870
ed496f13 3871 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 3872 " reason_code=%u minor_reason_code=%u",
3873 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3874
3875 p2p_parse_free(&msg);
3876}
3877
3878
3879void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3880 const u8 *ie, size_t ie_len)
3881{
3882 struct p2p_message msg;
3883
3884 if (bssid == NULL || ie == NULL)
3885 return;
3886
3887 os_memset(&msg, 0, sizeof(msg));
3888 if (p2p_parse_ies(ie, ie_len, &msg))
3889 return;
04c366cb
EL		 3890 if (msg.minor_reason_code == NULL) {
3891 p2p_parse_free(&msg);
b22128ef 3892 return;
04c366cb 3893 }
b22128ef 3894
ed496f13 3895 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 3896 " reason_code=%u minor_reason_code=%u",
3897 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3898
3899 p2p_parse_free(&msg);
3900}
3901
3902
3903void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3904{
3905 if (enabled) {
ed496f13 3906 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 3907 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3908 } else {
ed496f13 3909 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 3910 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3911 }
3912}
3913
3914
3915int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3916{
9ccd9165 3917 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 3918 return -1;
3919
ed496f13
JM		 3920 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
3921 reg_class, channel);
b22128ef
JM		 3922 p2p->cfg->reg_class = reg_class;
3923 p2p->cfg->channel = channel;
3924
3925 return 0;
3926}
3927
3928
3929int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3930{
ed496f13 3931 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 3932 if (postfix == NULL) {
3933 p2p->cfg->ssid_postfix_len = 0;
3934 return 0;
3935 }
3936 if (len > sizeof(p2p->cfg->ssid_postfix))
3937 return -1;
3938 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3939 p2p->cfg->ssid_postfix_len = len;
3940 return 0;
3941}
3942
3943
2463ba70
JS		 3944int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3945 int cfg_op_channel)
3946{
9ccd9165 3947 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 3948 return -1;
3949
ed496f13
JM		 3950 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
3951 op_reg_class, op_channel);
2463ba70
JS		 3952 p2p->cfg->op_reg_class = op_reg_class;
3953 p2p->cfg->op_channel = op_channel;
3954 p2p->cfg->cfg_op_channel = cfg_op_channel;
3955 return 0;
3956}
3957
3958
21d996f7
JM		 3959int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
3960 const struct p2p_channel *pref_chan)
3961{
3962 struct p2p_channel *n;
3963
3964 if (pref_chan) {
3965 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
3966 if (n == NULL)
3967 return -1;
3968 os_memcpy(n, pref_chan,
3969 num_pref_chan * sizeof(struct p2p_channel));
3970 } else
3971 n = NULL;
3972
3973 os_free(p2p->cfg->pref_chan);
3974 p2p->cfg->pref_chan = n;
3975 p2p->cfg->num_pref_chan = num_pref_chan;
3976
3977 return 0;
3978}
3979
3980
556b30da
JM		 3981int p2p_set_no_go_freq(struct p2p_data *p2p,
3982 const struct wpa_freq_range_list *list)
3983{
3984 struct wpa_freq_range *tmp;
3985
3986 if (list == NULL || list->num == 0) {
3987 os_free(p2p->no_go_freq.range);
3988 p2p->no_go_freq.range = NULL;
3989 p2p->no_go_freq.num = 0;
3990 return 0;
3991 }
3992
3993 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
3994 if (tmp == NULL)
3995 return -1;
3996 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
3997 os_free(p2p->no_go_freq.range);
3998 p2p->no_go_freq.range = tmp;
3999 p2p->no_go_freq.num = list->num;
4000 p2p_dbg(p2p, "Updated no GO chan list");
4001
4002 return 0;
4003}
4004
4005
b22128ef
JM		 4006int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4007 u8 *iface_addr)
4008{
4009 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4010 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4011 return -1;
4012 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4013 return 0;
4014}
80c9582a
JM		 4015
4016
4147a2cc
JM		 4017int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4018 u8 *dev_addr)
4019{
4020 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4021 if (dev == NULL)
4022 return -1;
c5db8e51 4023 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4024 return 0;
4025}
4026
4027
80c9582a
JM		 4028void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4029{
4030 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4031 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 4032 p2p_dbg(p2p, "Disable peer filter");
80c9582a 4033 else
ed496f13
JM		 4034 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4035 MAC2STR(p2p->peer_filter));
80c9582a 4036}
72044390
JM		 4037
4038
4039void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4040{
ed496f13 4041 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 4042 if (p2p->cross_connect == enabled)
4043 return;
4044 p2p->cross_connect = enabled;
4045 /* TODO: may need to tear down any action group where we are GO(?) */
4046}
f8d0131a
JM		 4047
4048
4049int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4050{
4051 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4052 if (dev == NULL)
4053 return -1;
4054 if (dev->oper_freq <= 0)
4055 return -1;
4056 return dev->oper_freq;
4057}
0f66abd2
SS		 4058
4059
4060void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4061{
ed496f13 4062 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 4063 enabled ? "enabled" : "disabled");
4064 p2p->cfg->p2p_intra_bss = enabled;
4065}
b5c9da8d
JM		 4066
4067
51e9f228
JM		 4068void p2p_update_channel_list(struct p2p_data *p2p,
4069 const struct p2p_channels *chan,
4070 const struct p2p_channels *cli_chan)
b5c9da8d 4071{
ed496f13 4072 p2p_dbg(p2p, "Update channel list");
b5c9da8d 4073 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
51e9f228
JM		 4074 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4075 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4076 sizeof(struct p2p_channels));
4077 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
b5c9da8d 4078}
3f9285ff
JM		 4079
4080
4081int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4082 const u8 *src, const u8 *bssid, const u8 *buf,
4083 size_t len, unsigned int wait_time)
4084{
4085 if (p2p->p2p_scan_running) {
ed496f13 4086 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
3f9285ff 4087 if (p2p->after_scan_tx) {
ed496f13 4088 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
3f9285ff
JM		 4089 os_free(p2p->after_scan_tx);
4090 }
4091 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4092 len);
4093 if (p2p->after_scan_tx == NULL)
4094 return -1;
4095 p2p->after_scan_tx->freq = freq;
4096 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4097 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4098 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4099 p2p->after_scan_tx->len = len;
4100 p2p->after_scan_tx->wait_time = wait_time;
4101 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4102 return 0;
4103 }
4104
4105 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4106 buf, len, wait_time);
4107}
7cfc4ac3
AGS		 4108
4109
4110void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4111 int freq_overall)
4112{
ed496f13
JM		 4113 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4114 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4115 p2p->best_freq_24 = freq_24;
4116 p2p->best_freq_5 = freq_5;
4117 p2p->best_freq_overall = freq_overall;
4118}
231bbd03
SS		 4119
4120
6cb27aa8
JM		 4121void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4122{
ed496f13 4123 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4124 p2p->own_freq_preference = freq;
4125}
4126
4127
231bbd03
SS		 4128const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4129{
4130 if (p2p == NULL || p2p->go_neg_peer == NULL)
4131 return NULL;
c5db8e51 4132 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4133}
c165d81e
JB		 4134
4135
4136const struct p2p_peer_info *
4137p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4138{
4139 struct p2p_device *dev;
4140
4141 if (addr) {
4142 dev = p2p_get_device(p2p, addr);
4143 if (!dev)
4144 return NULL;
4145
4146 if (!next) {
4147 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4148 return NULL;
4149
4150 return &dev->info;
4151 } else {
4152 do {
4153 dev = dl_list_first(&dev->list,
4154 struct p2p_device,
4155 list);
4156 if (&dev->list == &p2p->devices)
4157 return NULL;
4158 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4159 }
4160 } else {
4161 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4162 if (!dev)
4163 return NULL;
4164 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4165 dev = dl_list_first(&dev->list,
4166 struct p2p_device,
4167 list);
4168 if (&dev->list == &p2p->devices)
4169 return NULL;
4170 }
4171 }
4172
4173 return &dev->info;
4174}
303f60d3
JM		 4175
4176
4177int p2p_in_progress(struct p2p_data *p2p)
4178{
4179 if (p2p == NULL)
4180 return 0;
1b5d4714 4181 if (p2p->state == P2P_SEARCH)
99fcd404 4182 return 2;
fc6997b3 4183 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4184}
4f219667
JM		 4185
4186
4187void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4188 u8 client_timeout)
4189{
4190 if (p2p) {
4191 p2p->go_timeout = go_timeout;
4192 p2p->client_timeout = client_timeout;
4193 }
4194}
99fcd404
JM		 4195
4196
9675ce35
JM		 4197#ifdef CONFIG_WIFI_DISPLAY
4198
4199static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4200{
4201 size_t g;
4202 struct p2p_group *group;
4203
4204 for (g = 0; g < p2p->num_groups; g++) {
4205 group = p2p->groups[g];
3342c263 4206 p2p_group_force_beacon_update_ies(group);
9675ce35
JM		 4207 }
4208}
4209
4210
4211int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4212{
4213 wpabuf_free(p2p->wfd_ie_beacon);
4214 p2p->wfd_ie_beacon = ie;
4215 p2p_update_wfd_ie_groups(p2p);
4216 return 0;
4217}
4218
4219
4220int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4221{
4222 wpabuf_free(p2p->wfd_ie_probe_req);
4223 p2p->wfd_ie_probe_req = ie;
4224 return 0;
4225}
4226
4227
4228int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4229{
4230 wpabuf_free(p2p->wfd_ie_probe_resp);
4231 p2p->wfd_ie_probe_resp = ie;
4232 p2p_update_wfd_ie_groups(p2p);
4233 return 0;
4234}
4235
4236
4237int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4238{
4239 wpabuf_free(p2p->wfd_ie_assoc_req);
4240 p2p->wfd_ie_assoc_req = ie;
4241 return 0;
4242}
4243
4244
4245int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4246{
4247 wpabuf_free(p2p->wfd_ie_invitation);
4248 p2p->wfd_ie_invitation = ie;
4249 return 0;
4250}
4251
4252
4253int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4254{
4255 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4256 p2p->wfd_ie_prov_disc_req = ie;
4257 return 0;
4258}
4259
4260
4261int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4262{
4263 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4264 p2p->wfd_ie_prov_disc_resp = ie;
4265 return 0;
4266}
4267
4268
4269int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4270{
4271 wpabuf_free(p2p->wfd_ie_go_neg);
4272 p2p->wfd_ie_go_neg = ie;
4273 return 0;
4274}
4275
4276
4277int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4278{
4279 wpabuf_free(p2p->wfd_dev_info);
4280 if (elem) {
4281 p2p->wfd_dev_info = wpabuf_dup(elem);
4282 if (p2p->wfd_dev_info == NULL)
4283 return -1;
4284 } else
4285 p2p->wfd_dev_info = NULL;
4286
4287 return 0;
4288}
4289
4290
4291int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4292{
4293 wpabuf_free(p2p->wfd_assoc_bssid);
4294 if (elem) {
4295 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4296 if (p2p->wfd_assoc_bssid == NULL)
4297 return -1;
4298 } else
4299 p2p->wfd_assoc_bssid = NULL;
4300
4301 return 0;
4302}
4303
4304
4305int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4306 const struct wpabuf *elem)
4307{
4308 wpabuf_free(p2p->wfd_coupled_sink_info);
4309 if (elem) {
4310 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4311 if (p2p->wfd_coupled_sink_info == NULL)
4312 return -1;
4313 } else
4314 p2p->wfd_coupled_sink_info = NULL;
4315
4316 return 0;
4317}
4318
4319#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4320
4321
4322int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4323 int max_disc_tu)
4324{
4325 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4326 return -1;
4327
4328 p2p->min_disc_int = min_disc_int;
4329 p2p->max_disc_int = max_disc_int;
4330 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 4331 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4332 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 4333
4334 return 0;
4335}
ed496f13
JM		 4336
4337
4338void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4339{
4340 va_list ap;
4341 char buf[500];
4342
4343 if (!p2p->cfg->debug_print)
4344 return;
4345
4346 va_start(ap, fmt);
4347 vsnprintf(buf, sizeof(buf), fmt, ap);
4348 buf[sizeof(buf) - 1] = '\0';
4349 va_end(ap);
4350 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4351}
4352
4353
4354void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4355{
4356 va_list ap;
4357 char buf[500];
4358
4359 if (!p2p->cfg->debug_print)
4360 return;
4361
4362 va_start(ap, fmt);
4363 vsnprintf(buf, sizeof(buf), fmt, ap);
4364 buf[sizeof(buf) - 1] = '\0';
4365 va_end(ap);
4366 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4367}
4368
4369
4370void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4371{
4372 va_list ap;
4373 char buf[500];
4374
4375 if (!p2p->cfg->debug_print)
4376 return;
4377
4378 va_start(ap, fmt);
4379 vsnprintf(buf, sizeof(buf), fmt, ap);
4380 buf[sizeof(buf) - 1] = '\0';
4381 va_end(ap);
4382 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4383}
93588780
JM		 4384
4385
4386#ifdef CONFIG_WPS_NFC
4387
59b45d1a 4388static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
abe44e3c
JM		 4389 int client_freq,
4390 const u8 *go_dev_addr,
4391 const u8 *ssid, size_t ssid_len)
93588780
JM		 4392{
4393 struct wpabuf *buf;
4394 u8 op_class, channel;
4395 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
4396
4397 buf = wpabuf_alloc(1000);
4398 if (buf == NULL)
4399 return NULL;
4400
4401 op_class = p2p->cfg->reg_class;
4402 channel = p2p->cfg->channel;
4403
4404 p2p_buf_add_capability(buf, p2p->dev_capab &
4405 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
4406 p2p_buf_add_device_info(buf, p2p, NULL);
4407
4408 if (p2p->num_groups > 0) {
4409 role = P2P_GO_IN_A_GROUP;
4410 p2p_freq_to_channel(p2p_group_get_freq(p2p->groups[0]),
4411 &op_class, &channel);
59b45d1a
JM		 4412 } else if (client_freq > 0) {
4413 role = P2P_CLIENT_IN_A_GROUP;
4414 p2p_freq_to_channel(client_freq, &op_class, &channel);
93588780
JM		 4415 }
4416
4417 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
4418 channel, role);
4419
4420 if (p2p->num_groups > 0) {
4421 /* Limit number of clients to avoid very long message */
4422 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
4423 p2p_group_buf_add_id(p2p->groups[0], buf);
abe44e3c
JM		 4424 } else if (client_freq > 0 &&
4425 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
4426 ssid && ssid_len > 0) {
4427 /*
4428 * Add the optional P2P Group ID to indicate in which group this
4429 * device is a P2P Client.
4430 */
4431 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
93588780
JM		 4432 }
4433
4434 return buf;
4435}
4436
4437
59b45d1a 4438struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
abe44e3c
JM		 4439 int client_freq,
4440 const u8 *go_dev_addr,
4441 const u8 *ssid, size_t ssid_len)
93588780 4442{
abe44e3c
JM		 4443 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4444 ssid_len);
93588780
JM		 4445}
4446
4447
59b45d1a 4448struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
abe44e3c
JM		 4449 int client_freq,
4450 const u8 *go_dev_addr,
4451 const u8 *ssid, size_t ssid_len)
93588780 4452{
abe44e3c
JM		 4453 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4454 ssid_len);
93588780
JM		 4455}
4456
db6ae69e
JM		 4457
4458int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
4459 struct p2p_nfc_params *params)
4460{
4461 struct p2p_message msg;
4462 struct p2p_device *dev;
4463 const u8 *p2p_dev_addr;
59b45d1a
JM		 4464 int freq;
4465 enum p2p_role_indication role;
db6ae69e
JM		 4466
4467 params->next_step = NO_ACTION;
4468
4469 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
4470 params->p2p_attr, params->p2p_len, &msg)) {
4471 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
4472 p2p_parse_free(&msg);
4473 return -1;
4474 }
4475
4476 if (msg.p2p_device_addr)
4477 p2p_dev_addr = msg.p2p_device_addr;
4478 else if (msg.device_id)
4479 p2p_dev_addr = msg.device_id;
4480 else {
4481 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
4482 p2p_parse_free(&msg);
4483 return -1;
4484 }
4485
4486 if (msg.oob_dev_password) {
4487 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
4488 msg.oob_dev_password_len);
4489 params->oob_dev_pw_len = msg.oob_dev_password_len;
4490 }
4491
4492 dev = p2p_create_device(p2p, p2p_dev_addr);
4493 if (dev == NULL) {
4494 p2p_parse_free(&msg);
4495 return -1;
4496 }
4497
4498 params->peer = &dev->info;
4499
4500 os_get_reltime(&dev->last_seen);
4501 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
4502 p2p_copy_wps_info(p2p, dev, 0, &msg);
4503
59b45d1a
JM		 4504 if (!msg.oob_go_neg_channel) {
4505 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
4506 return -1;
4507 }
db6ae69e 4508
59b45d1a
JM		 4509 if (msg.oob_go_neg_channel[3] == 0 &&
4510 msg.oob_go_neg_channel[4] == 0)
4511 freq = 0;
4512 else
4513 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
4514 msg.oob_go_neg_channel[4]);
4515 if (freq < 0) {
4516 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
4517 return -1;
59b45d1a 4518 }
23318bea 4519 role = msg.oob_go_neg_channel[5];
db6ae69e 4520
23318bea
JM		 4521 if (role == P2P_GO_IN_A_GROUP) {
4522 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
4523 params->go_freq = freq;
abe44e3c
JM		 4524 } else if (role == P2P_CLIENT_IN_A_GROUP) {
4525 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
4526 freq);
4527 params->go_freq = freq;
23318bea
JM		 4528 } else
4529 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
4530 dev->oob_go_neg_freq = freq;
4531
4532 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
59b45d1a
JM		 4533 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
4534 p2p->cfg->channel);
4535 if (freq < 0) {
4536 p2p_dbg(p2p, "Own listen channel not known");
4537 return -1;
4538 }
4539 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
4540 dev->oob_go_neg_freq = freq;
db6ae69e
JM		 4541 }
4542
23318bea
JM		 4543 if (msg.group_id) {
4544 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
4545 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
4546 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
4547 params->go_ssid_len);
4548 }
59b45d1a 4549
db6ae69e
JM		 4550 p2p_parse_free(&msg);
4551
4552 if (dev->flags & P2P_DEV_USER_REJECTED) {
4553 p2p_dbg(p2p, "Do not report rejected device");
4554 return 0;
4555 }
4556
4557 if (!(dev->flags & P2P_DEV_REPORTED)) {
4558 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
4559 !(dev->flags & P2P_DEV_REPORTED_ONCE));
4560 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
4561 }
4562
59b45d1a 4563 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
74df9ecd 4564 params->next_step = BOTH_GO;
59b45d1a 4565 else if (role == P2P_GO_IN_A_GROUP)
db6ae69e 4566 params->next_step = JOIN_GROUP;
59b45d1a
JM		 4567 else if (role == P2P_CLIENT_IN_A_GROUP) {
4568 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
4569 params->next_step = PEER_CLIENT;
4570 } else if (p2p->num_groups > 0)
db6ae69e
JM		 4571 params->next_step = AUTH_JOIN;
4572 else if (params->sel)
4573 params->next_step = INIT_GO_NEG;
4574 else
4575 params->next_step = RESP_GO_NEG;
4576
4577 return 0;
4578}
4579
c4f87a70
JM		 4580
4581void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
4582 int go_intent,
4583 const u8 *own_interface_addr)
4584{
4585
4586 p2p->authorized_oob_dev_pw_id = dev_pw_id;
4587 if (dev_pw_id == 0) {
4588 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
4589 return;
4590 }
4591
4592 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
4593 dev_pw_id);
4594
4595 p2p->go_intent = go_intent;
4596 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
4597}
4598
93588780 4599#endif /* CONFIG_WPS_NFC */
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