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nl80211: Fix memory leak on start radar detection error path
[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"
86bd36f0 15#include "common/wpa_ctrl.h"
b22128ef
JM		 16#include "wps/wps_i.h"
17#include "p2p_i.h"
18#include "p2p.h"
19
20
21static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
22static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
23static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
24 const u8 *sa, const u8 *data, size_t len,
25 int rx_freq);
26static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
27 const u8 *sa, const u8 *data,
28 size_t len);
29static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 30static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 31
32
40c03fd4
JM		 33/*
34 * p2p_scan recovery timeout
35 *
36 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
37 * timeout for this to avoid hitting P2P timeout unnecessarily.
38 */
39#define P2P_SCAN_TIMEOUT 35
40
b22128ef
JM		 41/**
42 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
43 * entries will be removed
44 */
dcdd3838
DS		 45#ifndef P2P_PEER_EXPIRATION_AGE
46#define P2P_PEER_EXPIRATION_AGE 60
47#endif /* P2P_PEER_EXPIRATION_AGE */
b22128ef
JM		 48
49#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
50
51static void p2p_expire_peers(struct p2p_data *p2p)
52{
53 struct p2p_device *dev, *n;
acb69cec 54 struct os_reltime now;
1d277f02 55 size_t i;
b22128ef 56
acb69cec 57 os_get_reltime(&now);
b22128ef
JM		 58 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
59 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
60 continue;
b1aebbc4 61
a691d99f
JJ		 62 if (dev == p2p->go_neg_peer) {
63 /*
64 * GO Negotiation is in progress with the peer, so
65 * don't expire the peer entry until GO Negotiation
66 * fails or times out.
67 */
68 continue;
69 }
70
b1aebbc4
JM		 71 if (p2p->cfg->go_connected &&
72 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
73 dev->info.p2p_device_addr)) {
74 /*
75 * We are connected as a client to a group in which the
76 * peer is the GO, so do not expire the peer entry.
77 */
acb69cec 78 os_get_reltime(&dev->last_seen);
b1aebbc4
JM		 79 continue;
80 }
81
1d277f02
JM		 82 for (i = 0; i < p2p->num_groups; i++) {
83 if (p2p_group_is_client_connected(
84 p2p->groups[i], dev->info.p2p_device_addr))
85 break;
86 }
87 if (i < p2p->num_groups) {
88 /*
89 * The peer is connected as a client in a group where
90 * we are the GO, so do not expire the peer entry.
91 */
acb69cec 92 os_get_reltime(&dev->last_seen);
1d277f02
JM		 93 continue;
94 }
95
ed496f13
JM		 96 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
97 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 98 dl_list_del(&dev->list);
99 p2p_device_free(p2p, dev);
100 }
101}
102
103
104static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
105{
106 struct p2p_data *p2p = eloop_ctx;
107 p2p_expire_peers(p2p);
108 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
109 p2p_expiration_timeout, p2p, NULL);
110}
111
112
113static const char * p2p_state_txt(int state)
114{
115 switch (state) {
116 case P2P_IDLE:
117 return "IDLE";
118 case P2P_SEARCH:
119 return "SEARCH";
120 case P2P_CONNECT:
121 return "CONNECT";
122 case P2P_CONNECT_LISTEN:
123 return "CONNECT_LISTEN";
124 case P2P_GO_NEG:
125 return "GO_NEG";
126 case P2P_LISTEN_ONLY:
127 return "LISTEN_ONLY";
128 case P2P_WAIT_PEER_CONNECT:
129 return "WAIT_PEER_CONNECT";
130 case P2P_WAIT_PEER_IDLE:
131 return "WAIT_PEER_IDLE";
132 case P2P_SD_DURING_FIND:
133 return "SD_DURING_FIND";
134 case P2P_PROVISIONING:
135 return "PROVISIONING";
136 case P2P_PD_DURING_FIND:
137 return "PD_DURING_FIND";
138 case P2P_INVITE:
139 return "INVITE";
140 case P2P_INVITE_LISTEN:
141 return "INVITE_LISTEN";
142 default:
143 return "?";
144 }
145}
146
147
4c559019
JM		 148const char * p2p_get_state_txt(struct p2p_data *p2p)
149{
150 return p2p_state_txt(p2p->state);
151}
152
153
ec437d9e
JJ		 154u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
155{
156 struct p2p_device *dev = NULL;
157
158 if (!addr || !p2p)
159 return 0;
160
161 dev = p2p_get_device(p2p, addr);
162 if (dev)
163 return dev->wps_prov_info;
164 else
165 return 0;
166}
167
168
10531d21 169void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 170{
171 struct p2p_device *dev = NULL;
172
10531d21 173 if (!addr || !p2p)
ec437d9e
JJ		 174 return;
175
10531d21 176 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 177 if (dev)
178 dev->wps_prov_info = 0;
179}
180
181
b22128ef
JM		 182void p2p_set_state(struct p2p_data *p2p, int new_state)
183{
ed496f13 184 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 185 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
186 p2p->state = new_state;
e3bd6e9d
IP		 187
188 if (new_state == P2P_IDLE && p2p->pending_channel) {
189 p2p_dbg(p2p, "Apply change in listen channel");
190 p2p->cfg->reg_class = p2p->pending_reg_class;
191 p2p->cfg->channel = p2p->pending_channel;
192 p2p->pending_reg_class = 0;
193 p2p->pending_channel = 0;
194 }
b22128ef
JM		 195}
196
197
198void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
199{
ed496f13 200 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 201 p2p_state_txt(p2p->state), sec, usec);
202 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
203 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
204}
205
206
207void p2p_clear_timeout(struct p2p_data *p2p)
208{
ed496f13 209 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 210 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
211}
212
213
214void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
215 int status)
216{
217 struct p2p_go_neg_results res;
218 p2p_clear_timeout(p2p);
219 p2p_set_state(p2p, P2P_IDLE);
fb8984fd
JM		 220 if (p2p->go_neg_peer) {
221 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
eb916eb8 222 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
ab9e3442 223 p2p->go_neg_peer->oob_pw_id = 0;
fb8984fd 224 }
b22128ef
JM		 225 p2p->go_neg_peer = NULL;
226
227 os_memset(&res, 0, sizeof(res));
228 res.status = status;
229 if (peer) {
0e0e1e56
NS		 230 wpabuf_free(peer->go_neg_conf);
231 peer->go_neg_conf = NULL;
c5db8e51 232 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
b22128ef
JM		 233 ETH_ALEN);
234 os_memcpy(res.peer_interface_addr, peer->intended_addr,
235 ETH_ALEN);
236 }
237 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
238}
239
240
96beff11 241static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 242{
243 unsigned int r, tu;
244 int freq;
245 struct wpabuf *ies;
246
ed496f13 247 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 248 p2p_state_txt(p2p->state));
249
5661bd0f
JJ		 250 if (p2p->pending_listen_freq) {
251 /* We have a pending p2p_listen request */
252 p2p_dbg(p2p, "p2p_listen command pending already");
253 return;
254 }
255
9ccd9165 256 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 257 if (freq < 0) {
ed496f13 258 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 259 return;
260 }
261
df2508d7
JM		 262 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
263 r = 0;
b22128ef
JM		 264 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
265 p2p->min_disc_int) * 100;
96beff11
JM		 266 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
267 tu = p2p->max_disc_tu;
268 if (!dev_disc && tu < 100)
269 tu = 100; /* Need to wait in non-device discovery use cases */
270 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
271 tu = p2p->cfg->max_listen * 1000 / 1024;
272
273 if (tu == 0) {
ed496f13 274 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 275 p2p_set_timeout(p2p, 0, 0);
276 return;
277 }
b22128ef 278
b22128ef
JM		 279 ies = p2p_build_probe_resp_ies(p2p);
280 if (ies == NULL)
281 return;
282
5661bd0f
JJ		 283 p2p->pending_listen_freq = freq;
284 p2p->pending_listen_sec = 0;
285 p2p->pending_listen_usec = 1024 * tu;
286
b22128ef
JM		 287 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
288 ies) < 0) {
ed496f13 289 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 290 p2p->pending_listen_freq = 0;
291 }
292 wpabuf_free(ies);
293}
294
295
296int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
297{
298 int freq;
299 struct wpabuf *ies;
300
ed496f13 301 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 302
5661bd0f
JJ		 303 if (p2p->pending_listen_freq) {
304 /* We have a pending p2p_listen request */
305 p2p_dbg(p2p, "p2p_listen command pending already");
306 return -1;
307 }
308
9ccd9165 309 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 310 if (freq < 0) {
ed496f13 311 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 312 return -1;
313 }
314
b22128ef
JM		 315 p2p->pending_listen_sec = timeout / 1000;
316 p2p->pending_listen_usec = (timeout % 1000) * 1000;
317
318 if (p2p->p2p_scan_running) {
5b9cecaf 319 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 320 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 321 return 0;
322 }
ed496f13 323 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 324 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
325 return 0;
326 }
327
328 ies = p2p_build_probe_resp_ies(p2p);
329 if (ies == NULL)
330 return -1;
331
5661bd0f
JJ		 332 p2p->pending_listen_freq = freq;
333
b22128ef 334 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 335 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 336 p2p->pending_listen_freq = 0;
337 wpabuf_free(ies);
338 return -1;
339 }
340 wpabuf_free(ies);
341
342 p2p_set_state(p2p, P2P_LISTEN_ONLY);
343
344 return 0;
345}
346
347
348static void p2p_device_clear_reported(struct p2p_data *p2p)
349{
350 struct p2p_device *dev;
351 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
352 dev->flags &= ~P2P_DEV_REPORTED;
353}
354
355
356/**
357 * p2p_get_device - Fetch a peer entry
358 * @p2p: P2P module context from p2p_init()
359 * @addr: P2P Device Address of the peer
360 * Returns: Pointer to the device entry or %NULL if not found
361 */
362struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
363{
364 struct p2p_device *dev;
365 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 366 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 367 return dev;
368 }
369 return NULL;
370}
371
372
373/**
374 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
375 * @p2p: P2P module context from p2p_init()
376 * @addr: P2P Interface Address of the peer
377 * Returns: Pointer to the device entry or %NULL if not found
378 */
379struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
380 const u8 *addr)
381{
382 struct p2p_device *dev;
383 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
384 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
385 return dev;
386 }
387 return NULL;
388}
389
390
391/**
392 * p2p_create_device - Create a peer entry
393 * @p2p: P2P module context from p2p_init()
394 * @addr: P2P Device Address of the peer
395 * Returns: Pointer to the device entry or %NULL on failure
396 *
397 * If there is already an entry for the peer, it will be returned instead of
398 * creating a new one.
399 */
400static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
401 const u8 *addr)
402{
403 struct p2p_device *dev, *oldest = NULL;
404 size_t count = 0;
405
406 dev = p2p_get_device(p2p, addr);
407 if (dev)
408 return dev;
409
410 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
411 count++;
412 if (oldest == NULL ||
acb69cec 413 os_reltime_before(&dev->last_seen, &oldest->last_seen))
b22128ef
JM		 414 oldest = dev;
415 }
416 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 417 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 418 dl_list_del(&oldest->list);
419 p2p_device_free(p2p, oldest);
420 }
421
422 dev = os_zalloc(sizeof(*dev));
423 if (dev == NULL)
424 return NULL;
425 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 426 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 427
428 return dev;
429}
430
431
432static void p2p_copy_client_info(struct p2p_device *dev,
433 struct p2p_client_info *cli)
434{
c5db8e51
KRK		 435 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
436 dev->info.device_name[cli->dev_name_len] = '\0';
437 dev->info.dev_capab = cli->dev_capab;
438 dev->info.config_methods = cli->config_methods;
439 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 440 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
441 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
442 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 443}
444
445
446static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
447 const u8 *go_interface_addr, int freq,
448 const u8 *gi, size_t gi_len)
449{
450 struct p2p_group_info info;
451 size_t c;
452 struct p2p_device *dev;
453
454 if (gi == NULL)
455 return 0;
456
457 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
458 return -1;
459
460 /*
461 * Clear old data for this group; if the devices are still in the
462 * group, the information will be restored in the loop following this.
463 */
464 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 465 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 466 ETH_ALEN) == 0) {
467 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
468 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
469 }
470 }
471
472 for (c = 0; c < info.num_clients; c++) {
473 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 474 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
475 ETH_ALEN) == 0)
476 continue; /* ignore our own entry */
b22128ef
JM		 477 dev = p2p_get_device(p2p, cli->p2p_device_addr);
478 if (dev) {
b22128ef 479 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 480 P2P_DEV_PROBE_REQ_ONLY)) {
481 /*
482 * Update information since we have not
483 * received this directly from the client.
484 */
b22128ef 485 p2p_copy_client_info(dev, cli);
f33bc035
JM		 486 } else {
487 /*
488 * Need to update P2P Client Discoverability
489 * flag since it is valid only in P2P Group
490 * Info attribute.
491 */
492 dev->info.dev_capab &=
493 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
494 dev->info.dev_capab |=
495 cli->dev_capab &
496 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
497 }
b22128ef
JM		 498 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
499 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
500 }
501 } else {
502 dev = p2p_create_device(p2p, cli->p2p_device_addr);
503 if (dev == NULL)
504 continue;
505 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
506 p2p_copy_client_info(dev, cli);
507 dev->oper_freq = freq;
c5db8e51
KRK		 508 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
509 dev->info.p2p_device_addr,
8fd7dc1b
JB		 510 &dev->info, 1);
511 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 512 }
513
514 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
515 ETH_ALEN);
acb69cec 516 os_get_reltime(&dev->last_seen);
b22128ef
JM		 517 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
518 os_memcpy(dev->member_in_go_iface, go_interface_addr,
519 ETH_ALEN);
520 }
521
522 return 0;
523}
524
525
ed496f13
JM		 526static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
527 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 528{
529 os_memcpy(dev->info.device_name, msg->device_name,
530 sizeof(dev->info.device_name));
531
532 if (msg->manufacturer &&
533 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
534 os_memset(dev->info.manufacturer, 0,
535 sizeof(dev->info.manufacturer));
536 os_memcpy(dev->info.manufacturer, msg->manufacturer,
537 msg->manufacturer_len);
538 }
539
540 if (msg->model_name &&
541 msg->model_name_len < sizeof(dev->info.model_name)) {
542 os_memset(dev->info.model_name, 0,
543 sizeof(dev->info.model_name));
544 os_memcpy(dev->info.model_name, msg->model_name,
545 msg->model_name_len);
546 }
547
548 if (msg->model_number &&
549 msg->model_number_len < sizeof(dev->info.model_number)) {
550 os_memset(dev->info.model_number, 0,
551 sizeof(dev->info.model_number));
552 os_memcpy(dev->info.model_number, msg->model_number,
553 msg->model_number_len);
554 }
555
556 if (msg->serial_number &&
557 msg->serial_number_len < sizeof(dev->info.serial_number)) {
558 os_memset(dev->info.serial_number, 0,
559 sizeof(dev->info.serial_number));
560 os_memcpy(dev->info.serial_number, msg->serial_number,
561 msg->serial_number_len);
562 }
563
564 if (msg->pri_dev_type)
565 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
566 sizeof(dev->info.pri_dev_type));
567 else if (msg->wps_pri_dev_type)
568 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
569 sizeof(dev->info.pri_dev_type));
570
571 if (msg->wps_sec_dev_type_list) {
572 os_memcpy(dev->info.wps_sec_dev_type_list,
573 msg->wps_sec_dev_type_list,
574 msg->wps_sec_dev_type_list_len);
575 dev->info.wps_sec_dev_type_list_len =
576 msg->wps_sec_dev_type_list_len;
577 }
578
579 if (msg->capability) {
f33bc035
JM		 580 /*
581 * P2P Client Discoverability bit is reserved in all frames
582 * that use this function, so do not change its value here.
583 */
584 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
585 dev->info.dev_capab |= msg->capability[0] &
586 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 587 dev->info.group_capab = msg->capability[1];
588 }
589
590 if (msg->ext_listen_timing) {
591 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
592 dev->ext_listen_interval =
593 WPA_GET_LE16(msg->ext_listen_timing + 2);
594 }
595
596 if (!probe_req) {
954ee628
JM		 597 u16 new_config_methods;
598 new_config_methods = msg->config_methods ?
b67d0d9e 599 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 600 if (new_config_methods &&
601 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 602 p2p_dbg(p2p, "Update peer " MACSTR
603 " config_methods 0x%x -> 0x%x",
604 MAC2STR(dev->info.p2p_device_addr),
605 dev->info.config_methods,
606 new_config_methods);
954ee628
JM		 607 dev->info.config_methods = new_config_methods;
608 }
b67d0d9e
JM		 609 }
610}
611
612
71a0e395
JM		 613static void p2p_update_peer_vendor_elems(struct p2p_device *dev, const u8 *ies,
614 size_t ies_len)
615{
616 const u8 *pos, *end;
617 u8 id, len;
618
619 wpabuf_free(dev->info.vendor_elems);
620 dev->info.vendor_elems = NULL;
621
622 end = ies + ies_len;
623
624 for (pos = ies; pos + 1 < end; pos += len) {
625 id = *pos++;
626 len = *pos++;
627
628 if (pos + len > end)
629 break;
630
631 if (id != WLAN_EID_VENDOR_SPECIFIC || len < 3)
632 continue;
633
634 if (len >= 4) {
635 u32 type = WPA_GET_BE32(pos);
636
637 if (type == WPA_IE_VENDOR_TYPE ||
638 type == WMM_IE_VENDOR_TYPE ||
639 type == WPS_IE_VENDOR_TYPE ||
640 type == P2P_IE_VENDOR_TYPE ||
641 type == WFD_IE_VENDOR_TYPE)
642 continue;
643 }
644
645 /* Unknown vendor element - make raw IE data available */
646 if (wpabuf_resize(&dev->info.vendor_elems, 2 + len) < 0)
647 break;
648 wpabuf_put_data(dev->info.vendor_elems, pos - 2, 2 + len);
649 }
650}
651
652
b22128ef 653/**
c98b83f2 654 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 655 * @p2p: P2P module context from p2p_init()
656 * @addr: Source address of Beacon or Probe Response frame (may be either
657 * P2P Device Address or P2P Interface Address)
658 * @level: Signal level (signal strength of the received frame from the peer)
659 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 660 * @rx_time: Time when the result was received
b22128ef
JM		 661 * @ies: IEs from the Beacon or Probe Response frame
662 * @ies_len: Length of ies buffer in octets
c98b83f2 663 * @scan_res: Whether this was based on scan results
b22128ef
JM		 664 * Returns: 0 on success, -1 on failure
665 *
666 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 667 * to the peer table. This function can also be used with some other frames
668 * like Provision Discovery Request that contains P2P Capability and P2P Device
669 * Info attributes.
b22128ef 670 */
3dfd0484 671int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
acb69cec 672 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 673 size_t ies_len, int scan_res)
b22128ef
JM		 674{
675 struct p2p_device *dev;
676 struct p2p_message msg;
677 const u8 *p2p_dev_addr;
6f2c0607 678 int i;
acb69cec 679 struct os_reltime time_now;
b22128ef
JM		 680
681 os_memset(&msg, 0, sizeof(msg));
682 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 683 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 684 p2p_parse_free(&msg);
685 return -1;
686 }
687
688 if (msg.p2p_device_addr)
689 p2p_dev_addr = msg.p2p_device_addr;
690 else if (msg.device_id)
691 p2p_dev_addr = msg.device_id;
692 else {
ed496f13 693 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 694 p2p_parse_free(&msg);
695 return -1;
696 }
697
80c9582a
JM		 698 if (!is_zero_ether_addr(p2p->peer_filter) &&
699 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 700 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
701 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 702 p2p_parse_free(&msg);
80c9582a
JM		 703 return 0;
704 }
705
b22128ef
JM		 706 dev = p2p_create_device(p2p, p2p_dev_addr);
707 if (dev == NULL) {
708 p2p_parse_free(&msg);
709 return -1;
710 }
3dfd0484 711
c5f10e80 712 if (rx_time == NULL) {
acb69cec 713 os_get_reltime(&time_now);
c5f10e80
JM		 714 rx_time = &time_now;
715 }
3dfd0484
YD		 716
717 /*
718 * Update the device entry only if the new peer
719 * entry is newer than the one previously stored.
720 */
c5f10e80 721 if (dev->last_seen.sec > 0 &&
acb69cec 722 os_reltime_before(rx_time, &dev->last_seen)) {
ed496f13 723 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
c5f10e80
JM		 724 (unsigned int) rx_time->sec,
725 (unsigned int) rx_time->usec,
726 (unsigned int) dev->last_seen.sec,
727 (unsigned int) dev->last_seen.usec);
f96c1d76 728 p2p_parse_free(&msg);
3dfd0484 729 return -1;
f96c1d76 730 }
3dfd0484 731
acb69cec 732 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
3dfd0484 733
b22128ef
JM		 734 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
735
736 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
737 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
738 if (msg.ssid &&
739 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
740 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
741 != 0)) {
742 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
743 dev->oper_ssid_len = msg.ssid[1];
744 }
745
746 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
747 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
748 int ds_freq;
749 if (*msg.ds_params == 14)
750 ds_freq = 2484;
751 else
752 ds_freq = 2407 + *msg.ds_params * 5;
753 if (freq != ds_freq) {
ed496f13 754 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 755 freq, ds_freq);
756 freq = ds_freq;
757 }
758 }
759
c98b83f2 760 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 761 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
762 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 763 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
764 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 765 }
c98b83f2
JM		 766 if (scan_res) {
767 dev->listen_freq = freq;
768 if (msg.group_info)
769 dev->oper_freq = freq;
770 }
6402fc43 771 dev->info.level = level;
b22128ef 772
ed496f13 773 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 774
10c5d2a5 775 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 776 wpabuf_free(dev->info.wps_vendor_ext[i]);
777 dev->info.wps_vendor_ext[i] = NULL;
778 }
779
10c5d2a5 780 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 781 if (msg.wps_vendor_ext[i] == NULL)
782 break;
783 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
784 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
785 if (dev->info.wps_vendor_ext[i] == NULL)
786 break;
787 }
788
9675ce35
JM		 789 if (msg.wfd_subelems) {
790 wpabuf_free(dev->info.wfd_subelems);
791 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
792 }
793
c98b83f2
JM		 794 if (scan_res) {
795 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
796 msg.group_info, msg.group_info_len);
797 }
b22128ef
JM		 798
799 p2p_parse_free(&msg);
800
71a0e395
JM		 801 p2p_update_peer_vendor_elems(dev, ies, ies_len);
802
b22128ef
JM		 803 if (dev->flags & P2P_DEV_REPORTED)
804 return 0;
805
ed496f13
JM		 806 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
807 freq, (unsigned int) rx_time->sec,
c5f10e80 808 (unsigned int) rx_time->usec);
b22128ef 809 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 810 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 811 return 0;
812 }
8fd7dc1b 813
8b2b2a70
JM		 814 if (dev->info.config_methods == 0 &&
815 (freq == 2412 || freq == 2437 || freq == 2462)) {
816 /*
817 * If we have only seen a Beacon frame from a GO, we do not yet
818 * know what WPS config methods it supports. Since some
819 * applications use config_methods value from P2P-DEVICE-FOUND
820 * events, postpone reporting this peer until we've fully
821 * discovered its capabilities.
822 *
823 * At least for now, do this only if the peer was detected on
824 * one of the social channels since that peer can be easily be
825 * found again and there are no limitations of having to use
826 * passive scan on this channels, so this can be done through
827 * Probe Response frame that includes the config_methods
828 * information.
829 */
ed496f13
JM		 830 p2p_dbg(p2p, "Do not report peer " MACSTR
831 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 832 return 0;
833 }
834
8fd7dc1b
JB		 835 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
836 !(dev->flags & P2P_DEV_REPORTED_ONCE));
837 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 838
839 return 0;
840}
841
842
843static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
844{
6f2c0607
JMB		 845 int i;
846
5cfda25e
JJ		 847 if (p2p->go_neg_peer == dev) {
848 /*
849 * If GO Negotiation is in progress, report that it has failed.
850 */
851 p2p_go_neg_failed(p2p, dev, -1);
b22128ef 852 p2p->go_neg_peer = NULL;
5cfda25e 853 }
b22128ef
JM		 854 if (p2p->invite_peer == dev)
855 p2p->invite_peer = NULL;
856 if (p2p->sd_peer == dev)
857 p2p->sd_peer = NULL;
858 if (p2p->pending_client_disc_go == dev)
859 p2p->pending_client_disc_go = NULL;
860
f5fc6032
AC		 861 /* dev_lost() device, but only if it was previously dev_found() */
862 if (dev->flags & P2P_DEV_REPORTED_ONCE)
863 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
864 dev->info.p2p_device_addr);
56eeb8f2 865
10c5d2a5 866 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 867 wpabuf_free(dev->info.wps_vendor_ext[i]);
868 dev->info.wps_vendor_ext[i] = NULL;
869 }
870
9675ce35 871 wpabuf_free(dev->info.wfd_subelems);
71a0e395 872 wpabuf_free(dev->info.vendor_elems);
0e0e1e56 873 wpabuf_free(dev->go_neg_conf);
9675ce35 874
b22128ef
JM		 875 os_free(dev);
876}
877
878
879static int p2p_get_next_prog_freq(struct p2p_data *p2p)
880{
881 struct p2p_channels *c;
882 struct p2p_reg_class *cla;
883 size_t cl, ch;
884 int found = 0;
885 u8 reg_class;
886 u8 channel;
887 int freq;
888
889 c = &p2p->cfg->channels;
890 for (cl = 0; cl < c->reg_classes; cl++) {
891 cla = &c->reg_class[cl];
892 if (cla->reg_class != p2p->last_prog_scan_class)
893 continue;
894 for (ch = 0; ch < cla->channels; ch++) {
895 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
896 found = 1;
897 break;
898 }
899 }
900 if (found)
901 break;
902 }
903
904 if (!found) {
905 /* Start from beginning */
906 reg_class = c->reg_class[0].reg_class;
907 channel = c->reg_class[0].channel[0];
908 } else {
909 /* Pick the next channel */
910 ch++;
911 if (ch == cla->channels) {
912 cl++;
913 if (cl == c->reg_classes)
914 cl = 0;
915 ch = 0;
916 }
917 reg_class = c->reg_class[cl].reg_class;
918 channel = c->reg_class[cl].channel[ch];
919 }
920
9ccd9165 921 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 922 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 923 reg_class, channel, freq);
924 p2p->last_prog_scan_class = reg_class;
925 p2p->last_prog_scan_chan = channel;
926
927 if (freq == 2412 || freq == 2437 || freq == 2462)
928 return 0; /* No need to add social channels */
929 return freq;
930}
931
932
933static void p2p_search(struct p2p_data *p2p)
934{
935 int freq = 0;
936 enum p2p_scan_type type;
360182ed 937 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 938 int res;
b22128ef
JM		 939
940 if (p2p->drv_in_listen) {
ed496f13 941 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 942 return;
943 }
944 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
945
e6ecfc4f
JB		 946 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
947 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef 948 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 949 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 950 } else {
951 type = P2P_SCAN_SOCIAL;
ed496f13 952 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 953 }
954
99fcd404
JM		 955 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
956 p2p->num_req_dev_types, p2p->req_dev_types,
957 p2p->find_dev_id, pw_id);
958 if (res < 0) {
ed496f13 959 p2p_dbg(p2p, "Scan request failed");
b22128ef 960 p2p_continue_find(p2p);
40c03fd4 961 } else {
ed496f13 962 p2p_dbg(p2p, "Running p2p_scan");
40c03fd4
JM		 963 p2p->p2p_scan_running = 1;
964 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
965 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
966 p2p, NULL);
b22128ef
JM		 967 }
968}
969
970
971static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
972{
973 struct p2p_data *p2p = eloop_ctx;
ed496f13 974 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 975 p2p_stop_find(p2p);
976}
977
978
979static int p2p_run_after_scan(struct p2p_data *p2p)
980{
981 struct p2p_device *dev;
982 enum p2p_after_scan op;
983
3f9285ff 984 if (p2p->after_scan_tx) {
63a965c3 985 p2p->after_scan_tx_in_progress = 1;
ed496f13 986 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
46eeedac
JM		 987 p2p->cfg->send_action(p2p->cfg->cb_ctx,
988 p2p->after_scan_tx->freq,
989 p2p->after_scan_tx->dst,
990 p2p->after_scan_tx->src,
991 p2p->after_scan_tx->bssid,
992 (u8 *) (p2p->after_scan_tx + 1),
993 p2p->after_scan_tx->len,
994 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 995 os_free(p2p->after_scan_tx);
996 p2p->after_scan_tx = NULL;
997 return 1;
998 }
999
b22128ef
JM		 1000 op = p2p->start_after_scan;
1001 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1002 switch (op) {
1003 case P2P_AFTER_SCAN_NOTHING:
1004 break;
1005 case P2P_AFTER_SCAN_LISTEN:
ed496f13 1006 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 1007 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
1008 p2p->pending_listen_usec / 1000);
1009 return 1;
1010 case P2P_AFTER_SCAN_CONNECT:
ed496f13 1011 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 1012 MAC2STR(p2p->after_scan_peer));
1013 dev = p2p_get_device(p2p, p2p->after_scan_peer);
1014 if (dev == NULL) {
ed496f13 1015 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 1016 break;
1017 }
1018 p2p_connect_send(p2p, dev);
1019 return 1;
1020 }
1021
1022 return 0;
1023}
1024
1025
b22128ef
JM		 1026static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1027{
1028 struct p2p_data *p2p = eloop_ctx;
1029 int running;
ed496f13 1030 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 1031 running = p2p->p2p_scan_running;
1032 /* Make sure we recover from missed scan results callback */
1033 p2p->p2p_scan_running = 0;
1034
1035 if (running)
1036 p2p_run_after_scan(p2p);
1037}
1038
1039
046ef4aa
JMB		 1040static void p2p_free_req_dev_types(struct p2p_data *p2p)
1041{
1042 p2p->num_req_dev_types = 0;
1043 os_free(p2p->req_dev_types);
1044 p2p->req_dev_types = NULL;
1045}
1046
1047
b22128ef 1048int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 1049 enum p2p_discovery_type type,
6d92fa6e 1050 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 1051 const u8 *dev_id, unsigned int search_delay)
b22128ef
JM		 1052{
1053 int res;
1054
ed496f13 1055 p2p_dbg(p2p, "Starting find (type=%d)", type);
acb69cec 1056 os_get_reltime(&p2p->find_start);
b22128ef 1057 if (p2p->p2p_scan_running) {
ed496f13 1058 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 1059 }
046ef4aa
JMB		 1060
1061 p2p_free_req_dev_types(p2p);
1062 if (req_dev_types && num_req_dev_types) {
1063 p2p->req_dev_types = os_malloc(num_req_dev_types *
1064 WPS_DEV_TYPE_LEN);
1065 if (p2p->req_dev_types == NULL)
1066 return -1;
1067 os_memcpy(p2p->req_dev_types, req_dev_types,
1068 num_req_dev_types * WPS_DEV_TYPE_LEN);
1069 p2p->num_req_dev_types = num_req_dev_types;
1070 }
1071
6d92fa6e
JM		 1072 if (dev_id) {
1073 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1074 p2p->find_dev_id = p2p->find_dev_id_buf;
1075 } else
1076 p2p->find_dev_id = NULL;
1077
b22128ef
JM		 1078 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1079 p2p_clear_timeout(p2p);
1080 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1081 p2p->find_type = type;
1082 p2p_device_clear_reported(p2p);
1083 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1084 p2p->search_delay = search_delay;
1085 p2p->in_search_delay = 0;
b22128ef 1086 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1087 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1088 if (timeout)
1089 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1090 p2p, NULL);
1091 switch (type) {
1092 case P2P_FIND_START_WITH_FULL:
1093 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1094 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1095 p2p->num_req_dev_types,
360182ed
JM		 1096 p2p->req_dev_types, dev_id,
1097 DEV_PW_DEFAULT);
b22128ef
JM		 1098 break;
1099 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1100 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1101 p2p->num_req_dev_types,
360182ed
JM		 1102 p2p->req_dev_types, dev_id,
1103 DEV_PW_DEFAULT);
b22128ef
JM		 1104 break;
1105 default:
1106 return -1;
1107 }
1108
1109 if (res == 0) {
ed496f13 1110 p2p_dbg(p2p, "Running p2p_scan");
b22128ef
JM		 1111 p2p->p2p_scan_running = 1;
1112 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1113 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1114 p2p, NULL);
1b5d4714
JM		 1115 } else if (p2p->p2p_scan_running) {
1116 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1117 /* wait for the previous p2p_scan to complete */
825fb6b2 1118 res = 0; /* do not report failure */
b22128ef 1119 } else {
ed496f13 1120 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1121 p2p_set_state(p2p, P2P_IDLE);
1122 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1123 }
1124
1125 return res;
1126}
1127
1128
0b8889d8 1129void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1130{
ed496f13 1131 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1132 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1133 p2p_clear_timeout(p2p);
1b5d4714 1134 if (p2p->state == P2P_SEARCH)
710ae9ac 1135 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
b22128ef 1136 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1137 p2p_free_req_dev_types(p2p);
b22128ef 1138 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1139 if (p2p->go_neg_peer)
fb8984fd 1140 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1141 p2p->go_neg_peer = NULL;
1142 p2p->sd_peer = NULL;
1143 p2p->invite_peer = NULL;
1a9c618d
JM		 1144 p2p_stop_listen_for_freq(p2p, freq);
1145}
1146
1147
1148void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1149{
0b8889d8 1150 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1151 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1152 return;
1153 }
1a9c618d
JM		 1154 if (p2p->in_listen) {
1155 p2p->in_listen = 0;
1156 p2p_clear_timeout(p2p);
1157 }
54b8f994
JM		 1158 if (p2p->drv_in_listen) {
1159 /*
1160 * The driver may not deliver callback to p2p_listen_end()
1161 * when the operation gets canceled, so clear the internal
1162 * variable that is tracking driver state.
1163 */
ed496f13 1164 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1165 p2p->drv_in_listen = 0;
1166 }
b22128ef
JM		 1167 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1168}
1169
1170
0b5fb86a
SADR		 1171void p2p_stop_listen(struct p2p_data *p2p)
1172{
1173 if (p2p->state != P2P_LISTEN_ONLY) {
1174 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1175 return;
1176 }
1177
1178 p2p_stop_listen_for_freq(p2p, 0);
1179 p2p_set_state(p2p, P2P_IDLE);
1180}
1181
1182
0b8889d8
JM		 1183void p2p_stop_find(struct p2p_data *p2p)
1184{
5661bd0f 1185 p2p->pending_listen_freq = 0;
0b8889d8
JM		 1186 p2p_stop_find_for_freq(p2p, 0);
1187}
1188
1189
e28c226d
JM		 1190static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1191 unsigned int force_freq,
51e9f228 1192 unsigned int pref_freq, int go)
e28c226d
JM		 1193{
1194 u8 op_class, op_channel;
1195 unsigned int freq = force_freq ? force_freq : pref_freq;
1196
51e9f228
JM		 1197 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1198 force_freq, pref_freq, go);
9ccd9165 1199 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1200 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1201 return -1;
1202 }
1203
51e9f228
JM		 1204 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1205 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1206 op_channel))) {
ed496f13
JM		 1207 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1208 freq, op_class, op_channel);
e28c226d
JM		 1209 return -1;
1210 }
1211
1212 p2p->op_reg_class = op_class;
1213 p2p->op_channel = op_channel;
1214
1215 if (force_freq) {
1216 p2p->channels.reg_classes = 1;
1217 p2p->channels.reg_class[0].channels = 1;
1218 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1219 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1220 } else {
1221 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1222 sizeof(struct p2p_channels));
1223 }
1224
1225 return 0;
1226}
1227
1228
1229static void p2p_prepare_channel_best(struct p2p_data *p2p)
1230{
1231 u8 op_class, op_channel;
00043740
JM		 1232 const int op_classes_5ghz[] = { 124, 115, 0 };
1233 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
384bdd02 1234 const int op_classes_vht[] = { 128, 0 };
e28c226d 1235
99d7c762
JM		 1236 p2p_dbg(p2p, "Prepare channel best");
1237
e28c226d
JM		 1238 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1239 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1240 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1241 == 0) {
ed496f13 1242 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1243 p2p->op_reg_class = op_class;
1244 p2p->op_channel = op_channel;
1245 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1246 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1247 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1248 == 0) {
ed496f13 1249 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1250 p2p->op_reg_class = op_class;
1251 p2p->op_channel = op_channel;
1252 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1253 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1254 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1255 &op_channel) == 0) {
ed496f13 1256 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1257 p2p->op_reg_class = op_class;
1258 p2p->op_channel = op_channel;
6701fdc3
JM		 1259 } else if (p2p->cfg->num_pref_chan > 0 &&
1260 p2p_channels_includes(&p2p->cfg->channels,
1261 p2p->cfg->pref_chan[0].op_class,
1262 p2p->cfg->pref_chan[0].chan)) {
1263 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1264 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1265 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
384bdd02
JM		 1266 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1267 &p2p->op_reg_class, &p2p->op_channel) ==
1268 0) {
1269 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1270 p2p->op_reg_class, p2p->op_channel);
a30d50b3
JM		 1271 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1272 &p2p->op_reg_class, &p2p->op_channel) ==
1273 0) {
1274 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1275 p2p->op_reg_class, p2p->op_channel);
f2407107
JM		 1276 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1277 &p2p->op_reg_class, &p2p->op_channel) ==
1278 0) {
1279 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1280 p2p->op_reg_class, p2p->op_channel);
94b84bc7
AH		 1281 } else if (p2p_channels_includes(&p2p->cfg->channels,
1282 p2p->cfg->op_reg_class,
1283 p2p->cfg->op_channel)) {
99d7c762 1284 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1285 p2p->op_reg_class = p2p->cfg->op_reg_class;
1286 p2p->op_channel = p2p->cfg->op_channel;
6ace13a9
JM		 1287 } else if (p2p_channel_random_social(&p2p->cfg->channels,
1288 &p2p->op_reg_class,
1289 &p2p->op_channel) == 0) {
1290 p2p_dbg(p2p, "Select random available social channel %d from 2.4 GHz band as operating channel preference",
1291 p2p->op_channel);
94b84bc7 1292 } else {
6ace13a9
JM		 1293 /* Select any random available channel from the first available
1294 * operating class */
1295 p2p_channel_select(&p2p->cfg->channels, NULL,
1296 &p2p->op_reg_class,
1297 &p2p->op_channel);
1298 p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
1299 p2p->op_channel, p2p->op_reg_class);
e28c226d
JM		 1300 }
1301
1302 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1303 sizeof(struct p2p_channels));
1304}
1305
1306
a5830ede
JM		 1307/**
1308 * p2p_prepare_channel - Select operating channel for GO Negotiation
1309 * @p2p: P2P module context from p2p_init()
1310 * @dev: Selected peer device
1311 * @force_freq: Forced frequency in MHz or 0 if not forced
1312 * @pref_freq: Preferred frequency in MHz or 0 if no preference
51e9f228 1313 * @go: Whether the local end will be forced to be GO
a5830ede
JM		 1314 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1315 *
1316 * This function is used to do initial operating channel selection for GO
1317 * Negotiation prior to having received peer information. The selected channel
1318 * may be further optimized in p2p_reselect_channel() once the peer information
1319 * is available.
1320 */
79879f4a 1321int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
51e9f228 1322 unsigned int force_freq, unsigned int pref_freq, int go)
b22128ef 1323{
51e9f228
JM		 1324 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1325 force_freq, pref_freq, go);
04a3e69d 1326 if (force_freq || pref_freq) {
51e9f228
JM		 1327 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1328 0)
1e19f734 1329 return -1;
b22128ef 1330 } else {
e28c226d 1331 p2p_prepare_channel_best(p2p);
b22128ef 1332 }
51e9f228
JM		 1333 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1334 if (go)
1335 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1336 else if (!force_freq)
1337 p2p_channels_union(&p2p->channels, &p2p->cfg->cli_channels,
1338 &p2p->channels);
1339 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1340
ed496f13 1341 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1342 p2p->op_reg_class, p2p->op_channel,
1343 force_freq ? " (forced)" : "");
1344
92ac756c
JM		 1345 if (force_freq)
1346 dev->flags |= P2P_DEV_FORCE_FREQ;
1347 else
1348 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1349
7861cb08
JM		 1350 return 0;
1351}
1352
1353
acc247b2
JM		 1354static void p2p_set_dev_persistent(struct p2p_device *dev,
1355 int persistent_group)
1356{
1357 switch (persistent_group) {
1358 case 0:
1359 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1360 P2P_DEV_PREFER_PERSISTENT_RECONN);
1361 break;
1362 case 1:
1363 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1364 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1365 break;
1366 case 2:
1367 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1368 P2P_DEV_PREFER_PERSISTENT_RECONN;
1369 break;
1370 }
1371}
1372
1373
7861cb08
JM		 1374int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1375 enum p2p_wps_method wps_method,
1376 int go_intent, const u8 *own_interface_addr,
23c84252 1377 unsigned int force_freq, int persistent_group,
3bc462cb 1378 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1379 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
7861cb08
JM		 1380{
1381 struct p2p_device *dev;
1382
ed496f13 1383 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1384 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442
JM		 1385 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1386 "oob_pw_id=%u",
7861cb08 1387 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1388 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
7861cb08 1389
b22128ef
JM		 1390 dev = p2p_get_device(p2p, peer_addr);
1391 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1392 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1393 MAC2STR(peer_addr));
1394 return -1;
1395 }
1396
51e9f228
JM		 1397 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1398 go_intent == 15) < 0)
92ac756c
JM		 1399 return -1;
1400
b22128ef 1401 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1402 if (!(dev->info.dev_capab &
1403 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1404 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1405 " that is in a group and is not discoverable",
1406 MAC2STR(peer_addr));
1407 return -1;
1408 }
1409 if (dev->oper_freq <= 0) {
ed496f13 1410 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1411 " with incomplete information",
1412 MAC2STR(peer_addr));
1413 return -1;
1414 }
1415
1416 /*
1417 * First, try to connect directly. If the peer does not
1418 * acknowledge frames, assume it is sleeping and use device
1419 * discoverability via the GO at that point.
1420 */
1421 }
1422
23c84252
JM		 1423 p2p->ssid_set = 0;
1424 if (force_ssid) {
1425 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1426 force_ssid, force_ssid_len);
1427 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1428 p2p->ssid_len = force_ssid_len;
1429 p2p->ssid_set = 1;
1430 }
1431
b22128ef
JM		 1432 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1433 dev->flags &= ~P2P_DEV_USER_REJECTED;
1434 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1435 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1436 if (pd_before_go_neg)
1437 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1438 else {
3bc462cb 1439 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1440 /*
003c4580
JM		 1441 * Assign dialog token and tie breaker here to use the same
1442 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1443 */
1444 dev->dialog_token++;
1445 if (dev->dialog_token == 0)
1446 dev->dialog_token = 1;
003c4580
JM		 1447 dev->tie_breaker = p2p->next_tie_breaker;
1448 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1449 }
9dac8c3e 1450 dev->connect_reqs = 0;
b22128ef
JM		 1451 dev->go_neg_req_sent = 0;
1452 dev->go_state = UNKNOWN_GO;
acc247b2 1453 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1454 p2p->go_intent = go_intent;
1455 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1456
1457 if (p2p->state != P2P_IDLE)
1458 p2p_stop_find(p2p);
1459
f44ae207
JM		 1460 if (p2p->after_scan_tx) {
1461 /*
1462 * We need to drop the pending frame to avoid issues with the
1463 * new GO Negotiation, e.g., when the pending frame was from a
1464 * previous attempt at starting a GO Negotiation.
1465 */
ed496f13 1466 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
f44ae207
JM		 1467 os_free(p2p->after_scan_tx);
1468 p2p->after_scan_tx = NULL;
1469 }
1470
b22128ef 1471 dev->wps_method = wps_method;
ab9e3442 1472 dev->oob_pw_id = oob_pw_id;
b22128ef 1473 dev->status = P2P_SC_SUCCESS;
d5b20a73 1474
b22128ef 1475 if (p2p->p2p_scan_running) {
ed496f13 1476 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1477 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1478 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1479 return 0;
1480 }
1481 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1482
1483 return p2p_connect_send(p2p, dev);
1484}
1485
1486
1487int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1488 enum p2p_wps_method wps_method,
1489 int go_intent, const u8 *own_interface_addr,
23c84252 1490 unsigned int force_freq, int persistent_group,
04a3e69d 1491 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1492 unsigned int pref_freq, u16 oob_pw_id)
b22128ef
JM		 1493{
1494 struct p2p_device *dev;
1495
ed496f13 1496 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef 1497 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442 1498 " wps_method=%d persistent_group=%d oob_pw_id=%u",
b22128ef 1499 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1500 wps_method, persistent_group, oob_pw_id);
b22128ef 1501
b22128ef
JM		 1502 dev = p2p_get_device(p2p, peer_addr);
1503 if (dev == NULL) {
ed496f13 1504 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1505 MAC2STR(peer_addr));
1506 return -1;
1507 }
1508
51e9f228
JM		 1509 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1510 15) < 0)
92ac756c
JM		 1511 return -1;
1512
23c84252
JM		 1513 p2p->ssid_set = 0;
1514 if (force_ssid) {
1515 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1516 force_ssid, force_ssid_len);
1517 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1518 p2p->ssid_len = force_ssid_len;
1519 p2p->ssid_set = 1;
1520 }
1521
b22128ef
JM		 1522 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1523 dev->flags &= ~P2P_DEV_USER_REJECTED;
1524 dev->go_neg_req_sent = 0;
1525 dev->go_state = UNKNOWN_GO;
acc247b2 1526 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1527 p2p->go_intent = go_intent;
1528 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1529
1530 dev->wps_method = wps_method;
ab9e3442 1531 dev->oob_pw_id = oob_pw_id;
b22128ef
JM		 1532 dev->status = P2P_SC_SUCCESS;
1533
1534 return 0;
1535}
1536
1537
1538void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1539 struct p2p_device *dev, struct p2p_message *msg)
1540{
acb69cec 1541 os_get_reltime(&dev->last_seen);
b22128ef 1542
ed496f13 1543 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1544
b22128ef
JM		 1545 if (msg->listen_channel) {
1546 int freq;
9ccd9165 1547 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1548 msg->listen_channel[4]);
1549 if (freq < 0) {
ed496f13 1550 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1551 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1552 msg->listen_channel[0],
1553 msg->listen_channel[1],
1554 msg->listen_channel[2],
1555 msg->listen_channel[3],
1556 msg->listen_channel[4]);
1557 } else {
ed496f13
JM		 1558 p2p_dbg(p2p, "Update peer " MACSTR
1559 " Listen channel: %u -> %u MHz",
c5db8e51 1560 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1561 dev->listen_freq, freq);
1562 dev->listen_freq = freq;
1563 }
1564 }
b22128ef 1565
9675ce35
JM		 1566 if (msg->wfd_subelems) {
1567 wpabuf_free(dev->info.wfd_subelems);
1568 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1569 }
1570
b22128ef
JM		 1571 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1572 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1573 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1574 } else {
ed496f13 1575 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1576 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1577 "listen_freq=%d",
c5db8e51
KRK		 1578 MAC2STR(dev->info.p2p_device_addr),
1579 dev->info.dev_capab, dev->info.group_capab,
1580 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1581 }
1582
1583 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1584
1585 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1586 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1587 return;
1588 }
1589
8fd7dc1b
JB		 1590 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1591 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1592 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1593}
1594
1595
1596void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1597{
1598 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1599 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1600 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1601 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1602 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1603}
1604
1605
1606int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1607{
1608 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1b928f96 1609 p2p_random(params->passphrase, p2p->cfg->passphrase_len);
b22128ef
JM		 1610 return 0;
1611}
1612
1613
1614void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1615{
1616 struct p2p_go_neg_results res;
1617 int go = peer->go_state == LOCAL_GO;
1618 struct p2p_channels intersection;
1619 int freqs;
1620 size_t i, j;
1621
ed496f13
JM		 1622 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1623 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1624
1625 os_memset(&res, 0, sizeof(res));
1626 res.role_go = go;
c5db8e51 1627 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1628 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1629 res.wps_method = peer->wps_method;
acc247b2
JM		 1630 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1631 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1632 res.persistent_group = 2;
1633 else
1634 res.persistent_group = 1;
1635 }
b22128ef
JM		 1636
1637 if (go) {
1638 /* Setup AP mode for WPS provisioning */
9ccd9165 1639 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1640 p2p->op_channel);
1641 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1642 res.ssid_len = p2p->ssid_len;
1b928f96 1643 p2p_random(res.passphrase, p2p->cfg->passphrase_len);
e9a7ae41 1644 } else {
b22128ef 1645 res.freq = peer->oper_freq;
e9a7ae41
JM		 1646 if (p2p->ssid_len) {
1647 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1648 res.ssid_len = p2p->ssid_len;
1649 }
1650 }
b22128ef 1651
556b30da
JM		 1652 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1653 p2p_channels_dump(p2p, "peer channels", &peer->channels);
b22128ef
JM		 1654 p2p_channels_intersect(&p2p->channels, &peer->channels,
1655 &intersection);
556b30da
JM		 1656 if (go) {
1657 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1658 p2p_channels_dump(p2p, "intersection after no-GO removal",
1659 &intersection);
1660 }
b22128ef
JM		 1661 freqs = 0;
1662 for (i = 0; i < intersection.reg_classes; i++) {
1663 struct p2p_reg_class *c = &intersection.reg_class[i];
1664 if (freqs + 1 == P2P_MAX_CHANNELS)
1665 break;
1666 for (j = 0; j < c->channels; j++) {
1667 int freq;
1668 if (freqs + 1 == P2P_MAX_CHANNELS)
1669 break;
9ccd9165 1670 freq = p2p_channel_to_freq(c->reg_class, c->channel[j]);
b22128ef
JM		 1671 if (freq < 0)
1672 continue;
1673 res.freq_list[freqs++] = freq;
1674 }
1675 }
1676
ae3e3421
JM		 1677 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1678
b22128ef 1679 p2p_clear_timeout(p2p);
4458d915 1680 p2p->ssid_set = 0;
b22128ef
JM		 1681 peer->go_neg_req_sent = 0;
1682 peer->wps_method = WPS_NOT_READY;
ab9e3442 1683 peer->oob_pw_id = 0;
0e0e1e56
NS		 1684 wpabuf_free(peer->go_neg_conf);
1685 peer->go_neg_conf = NULL;
b22128ef
JM		 1686
1687 p2p_set_state(p2p, P2P_PROVISIONING);
1688 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1689}
1690
1691
1692static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1693 const u8 *data, size_t len, int rx_freq)
1694{
ed496f13 1695 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1696 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1697
1698 if (len < 1)
1699 return;
1700
1701 switch (data[0]) {
1702 case P2P_GO_NEG_REQ:
1703 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1704 break;
1705 case P2P_GO_NEG_RESP:
1706 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1707 break;
1708 case P2P_GO_NEG_CONF:
1709 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1710 break;
1711 case P2P_INVITATION_REQ:
1712 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1713 rx_freq);
1714 break;
1715 case P2P_INVITATION_RESP:
dc46fd66 1716 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 1717 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1718 break;
1719 case P2P_PROV_DISC_REQ:
1720 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1721 break;
1722 case P2P_PROV_DISC_RESP:
1723 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1724 break;
1725 case P2P_DEV_DISC_REQ:
1726 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1727 break;
1728 case P2P_DEV_DISC_RESP:
1729 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1730 break;
1731 default:
ed496f13 1732 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1733 data[0]);
1734 break;
1735 }
1736}
1737
1738
19df9b07
JM		 1739static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1740 const u8 *sa, const u8 *bssid, const u8 *data,
1741 size_t len, int freq)
b22128ef
JM		 1742{
1743 if (len < 1)
1744 return;
1745
1746 switch (data[0]) {
1747 case WLAN_PA_VENDOR_SPECIFIC:
1748 data++;
1749 len--;
8bc4372f 1750 if (len < 4)
b22128ef 1751 return;
8bc4372f 1752 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef
JM		 1753 return;
1754
8bc4372f
RJ		 1755 data += 4;
1756 len -= 4;
b22128ef 1757
8bc4372f 1758 p2p_rx_p2p_action(p2p, sa, data, len, freq);
b22128ef
JM		 1759 break;
1760 case WLAN_PA_GAS_INITIAL_REQ:
1761 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1762 break;
1763 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1764 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1765 break;
1766 case WLAN_PA_GAS_COMEBACK_REQ:
1767 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1768 break;
1769 case WLAN_PA_GAS_COMEBACK_RESP:
1770 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1771 break;
1772 }
1773}
1774
1775
1776void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1777 const u8 *bssid, u8 category,
1778 const u8 *data, size_t len, int freq)
1779{
1780 if (category == WLAN_ACTION_PUBLIC) {
1781 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1782 return;
1783 }
1784
1785 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1786 return;
1787
1788 if (len < 4)
1789 return;
1790
8bc4372f 1791 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef 1792 return;
8bc4372f
RJ		 1793 data += 4;
1794 len -= 4;
b22128ef
JM		 1795
1796 /* P2P action frame */
ed496f13 1797 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1798 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1799
1800 if (len < 1)
1801 return;
1802 switch (data[0]) {
1803 case P2P_NOA:
ed496f13 1804 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1805 /* TODO */
1806 break;
1807 case P2P_PRESENCE_REQ:
1808 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1809 break;
1810 case P2P_PRESENCE_RESP:
1811 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1812 break;
1813 case P2P_GO_DISC_REQ:
1814 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1815 break;
1816 default:
ed496f13 1817 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1818 break;
1819 }
1820}
1821
1822
1823static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1824{
1825 struct p2p_data *p2p = eloop_ctx;
1826 if (p2p->go_neg_peer == NULL)
1827 return;
7549c178
JM		 1828 if (p2p->pending_listen_freq) {
1829 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_go_neg_start");
1830 p2p->pending_listen_freq = 0;
1831 }
b22128ef
JM		 1832 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1833 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
e49cabcf
JM		 1834 /*
1835 * Set new timeout to make sure a previously set one does not expire
1836 * too quickly while waiting for the GO Negotiation to complete.
1837 */
1838 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 1839 p2p_connect_send(p2p, p2p->go_neg_peer);
1840}
1841
1842
1843static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1844{
1845 struct p2p_data *p2p = eloop_ctx;
1846 if (p2p->invite_peer == NULL)
1847 return;
7549c178
JM		 1848 if (p2p->pending_listen_freq) {
1849 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_invite_start");
1850 p2p->pending_listen_freq = 0;
1851 }
b22128ef 1852 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
8e9f53c3
JM		 1853 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
1854 p2p->invite_dev_pw_id);
b22128ef
JM		 1855}
1856
1857
1858static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1859 const u8 *ie, size_t ie_len)
1860{
1861 struct p2p_message msg;
1862 struct p2p_device *dev;
1863
1864 os_memset(&msg, 0, sizeof(msg));
1865 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1866 {
1867 p2p_parse_free(&msg);
1868 return; /* not a P2P probe */
1869 }
1870
1871 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1872 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1873 != 0) {
1874 /* The Probe Request is not part of P2P Device Discovery. It is
1875 * not known whether the source address of the frame is the P2P
1876 * Device Address or P2P Interface Address. Do not add a new
1877 * peer entry based on this frames.
1878 */
1879 p2p_parse_free(&msg);
1880 return;
1881 }
1882
1883 dev = p2p_get_device(p2p, addr);
1884 if (dev) {
1885 if (dev->country[0] == 0 && msg.listen_channel)
1886 os_memcpy(dev->country, msg.listen_channel, 3);
acb69cec 1887 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1888 p2p_parse_free(&msg);
1889 return; /* already known */
1890 }
1891
1892 dev = p2p_create_device(p2p, addr);
1893 if (dev == NULL) {
1894 p2p_parse_free(&msg);
1895 return;
1896 }
1897
acb69cec 1898 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1899 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1900
b22128ef
JM		 1901 if (msg.listen_channel) {
1902 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 1903 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 1904 msg.listen_channel[4]);
1905 }
1906
ed496f13 1907 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 1908
9675ce35
JM		 1909 if (msg.wfd_subelems) {
1910 wpabuf_free(dev->info.wfd_subelems);
1911 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1912 }
1913
b22128ef
JM		 1914 p2p_parse_free(&msg);
1915
ed496f13 1916 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 1917 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 1918 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1919 dev->info.group_capab, dev->info.device_name,
1920 dev->listen_freq);
b22128ef
JM		 1921}
1922
1923
1924struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1925 const u8 *addr,
1926 struct p2p_message *msg)
1927{
1928 struct p2p_device *dev;
1929
1930 dev = p2p_get_device(p2p, addr);
1931 if (dev) {
acb69cec 1932 os_get_reltime(&dev->last_seen);
b22128ef
JM		 1933 return dev; /* already known */
1934 }
1935
1936 dev = p2p_create_device(p2p, addr);
1937 if (dev == NULL)
1938 return NULL;
1939
1940 p2p_add_dev_info(p2p, addr, dev, msg);
1941
1942 return dev;
1943}
1944
1945
1946static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1947{
1948 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1949 return 1;
1950 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1951 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1952 WPA_GET_BE16(&req_dev_type[6]) == 0)
1953 return 1; /* Category match with wildcard OUI/sub-category */
1954 return 0;
1955}
1956
1957
1958int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1959 size_t num_req_dev_type)
1960{
1961 size_t i;
1962 for (i = 0; i < num_req_dev_type; i++) {
1963 if (dev_type_match(dev_type, req_dev_type[i]))
1964 return 1;
1965 }
1966 return 0;
1967}
1968
1969
1970/**
1971 * p2p_match_dev_type - Match local device type with requested type
1972 * @p2p: P2P module context from p2p_init()
1973 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1974 * Returns: 1 on match, 0 on mismatch
1975 *
1976 * This function can be used to match the Requested Device Type attribute in
1977 * WPS IE with the local device types for deciding whether to reply to a Probe
1978 * Request frame.
1979 */
1980int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1981{
1982 struct wps_parse_attr attr;
1983 size_t i;
1984
1985 if (wps_parse_msg(wps, &attr))
1986 return 1; /* assume no Requested Device Type attributes */
1987
1988 if (attr.num_req_dev_type == 0)
1989 return 1; /* no Requested Device Type attributes -> match */
1990
1991 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1992 attr.num_req_dev_type))
1993 return 1; /* Own Primary Device Type matches */
1994
1995 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1996 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1997 attr.req_dev_type,
1998 attr.num_req_dev_type))
1999 return 1; /* Own Secondary Device Type matches */
2000
2001 /* No matching device type found */
2002 return 0;
2003}
2004
2005
2006struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
2007{
2008 struct wpabuf *buf;
2009 u8 *len;
360182ed 2010 int pw_id = -1;
9675ce35 2011 size_t extra = 0;
b22128ef 2012
9675ce35
JM		 2013#ifdef CONFIG_WIFI_DISPLAY
2014 if (p2p->wfd_ie_probe_resp)
2015 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
2016#endif /* CONFIG_WIFI_DISPLAY */
2017
86bd36f0
JM		 2018 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2019 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2020
9675ce35 2021 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 2022 if (buf == NULL)
2023 return NULL;
2024
360182ed
JM		 2025 if (p2p->go_neg_peer) {
2026 /* Advertise immediate availability of WPS credential */
2027 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
2028 }
2029
33183761
JM		 2030 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
2031 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
2032 wpabuf_free(buf);
2033 return NULL;
2034 }
b22128ef 2035
9675ce35
JM		 2036#ifdef CONFIG_WIFI_DISPLAY
2037 if (p2p->wfd_ie_probe_resp)
2038 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
2039#endif /* CONFIG_WIFI_DISPLAY */
2040
86bd36f0
JM		 2041 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2042 wpabuf_put_buf(buf,
2043 p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2044
b22128ef
JM		 2045 /* P2P IE */
2046 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 2047 p2p_buf_add_capability(buf, p2p->dev_capab &
2048 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 2049 if (p2p->ext_listen_interval)
2050 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
2051 p2p->ext_listen_interval);
2052 p2p_buf_add_device_info(buf, p2p, NULL);
2053 p2p_buf_update_ie_hdr(buf, len);
2054
2055 return buf;
2056}
2057
2058
2d43d37f
JB		 2059static enum p2p_probe_req_status
2060p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2061 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 2062{
2063 struct ieee802_11_elems elems;
2064 struct wpabuf *buf;
2065 struct ieee80211_mgmt *resp;
97c5b3c4 2066 struct p2p_message msg;
b22128ef
JM		 2067 struct wpabuf *ies;
2068
2069 if (!p2p->in_listen || !p2p->drv_in_listen) {
2070 /* not in Listen state - ignore Probe Request */
211d7ab3
JM		 2071 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2072 p2p->in_listen, p2p->drv_in_listen);
2d43d37f 2073 return P2P_PREQ_NOT_LISTEN;
b22128ef
JM		 2074 }
2075
2076 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
2077 ParseFailed) {
2078 /* Ignore invalid Probe Request frames */
a5527a49 2079 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
2d43d37f 2080 return P2P_PREQ_MALFORMED;
b22128ef
JM		 2081 }
2082
2083 if (elems.p2p == NULL) {
2084 /* not a P2P probe - ignore it */
a5527a49 2085 p2p_dbg(p2p, "Not a P2P probe - ignore it");
2d43d37f 2086 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 2087 }
2088
04a85e44
JM		 2089 if (dst && !is_broadcast_ether_addr(dst) &&
2090 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2091 /* Not sent to the broadcast address or our P2P Device Address
2092 */
a5527a49
JM		 2093 p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
2094 MAC2STR(dst));
2d43d37f 2095 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2096 }
2097
2098 if (bssid && !is_broadcast_ether_addr(bssid)) {
2099 /* Not sent to the Wildcard BSSID */
a5527a49
JM		 2100 p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
2101 MAC2STR(bssid));
2d43d37f 2102 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2103 }
2104
b22128ef
JM		 2105 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2106 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2107 0) {
2108 /* not using P2P Wildcard SSID - ignore */
a5527a49 2109 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
2d43d37f 2110 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2111 }
2112
e1d52629
JM		 2113 if (supp_rates_11b_only(&elems)) {
2114 /* Indicates support for 11b rates only */
a5527a49 2115 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
2d43d37f 2116 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2117 }
2118
97c5b3c4
JM		 2119 os_memset(&msg, 0, sizeof(msg));
2120 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2121 /* Could not parse P2P attributes */
a5527a49 2122 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
2d43d37f 2123 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2124 }
2125
2126 if (msg.device_id &&
1c7447d0 2127 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4 2128 /* Device ID did not match */
a5527a49
JM		 2129 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
2130 MAC2STR(msg.device_id));
97c5b3c4 2131 p2p_parse_free(&msg);
2d43d37f 2132 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2133 }
2134
b22128ef 2135 /* Check Requested Device Type match */
97c5b3c4
JM		 2136 if (msg.wps_attributes &&
2137 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2138 /* No match with Requested Device Type */
a5527a49 2139 p2p_dbg(p2p, "Probe Req requestred Device Type did not match - ignore it");
97c5b3c4 2140 p2p_parse_free(&msg);
2d43d37f 2141 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2142 }
97c5b3c4 2143 p2p_parse_free(&msg);
b22128ef 2144
2d43d37f
JB		 2145 if (!p2p->cfg->send_probe_resp) {
2146 /* Response generated elsewhere */
a5527a49 2147 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
2d43d37f
JB		 2148 return P2P_PREQ_NOT_PROCESSED;
2149 }
b22128ef 2150
ed496f13 2151 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2152
2153 /*
2154 * We do not really have a specific BSS that this frame is advertising,
2155 * so build a frame that has some information in valid format. This is
2156 * really only used for discovery purposes, not to learn exact BSS
2157 * parameters.
2158 */
2159 ies = p2p_build_probe_resp_ies(p2p);
2160 if (ies == NULL)
2d43d37f 2161 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2162
2163 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2164 if (buf == NULL) {
2165 wpabuf_free(ies);
2d43d37f 2166 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2167 }
2168
2169 resp = NULL;
2170 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2171
2172 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2173 (WLAN_FC_STYPE_PROBE_RESP << 4));
2174 os_memcpy(resp->da, addr, ETH_ALEN);
2175 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2176 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2177 resp->u.probe_resp.beacon_int = host_to_le16(100);
2178 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2179 resp->u.probe_resp.capab_info =
2180 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2181 WLAN_CAPABILITY_PRIVACY |
2182 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2183
2184 wpabuf_put_u8(buf, WLAN_EID_SSID);
2185 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2186 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2187
2188 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2189 wpabuf_put_u8(buf, 8);
2190 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2191 wpabuf_put_u8(buf, 90 / 5);
2192 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2193 wpabuf_put_u8(buf, 180 / 5);
2194 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2195 wpabuf_put_u8(buf, 360 / 5);
2196 wpabuf_put_u8(buf, 480 / 5);
2197 wpabuf_put_u8(buf, 540 / 5);
2198
2199 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2200 wpabuf_put_u8(buf, 1);
2201 wpabuf_put_u8(buf, p2p->cfg->channel);
2202
2203 wpabuf_put_buf(buf, ies);
2204 wpabuf_free(ies);
2205
2206 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2207
2208 wpabuf_free(buf);
2d43d37f
JB		 2209
2210 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2211}
2212
2213
2d43d37f
JB		 2214enum p2p_probe_req_status
2215p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2216 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2217{
2d43d37f
JB		 2218 enum p2p_probe_req_status res;
2219
b22128ef
JM		 2220 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2221
2d43d37f 2222 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
b22128ef
JM		 2223
2224 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2225 p2p->go_neg_peer &&
c5db8e51 2226 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2227 == 0 &&
2228 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2229 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2230 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2231 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2232 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2233 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2234 }
2235
2236 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2237 p2p->invite_peer &&
a05e236b 2238 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
c5db8e51
KRK		 2239 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2240 == 0) {
b22128ef 2241 /* Received a Probe Request from Invite peer */
ed496f13 2242 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
aef5047a 2243 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
b22128ef 2244 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2245 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2246 }
2247
2d43d37f 2248 return res;
b22128ef
JM		 2249}
2250
2251
2252static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2253 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2254{
2255 struct wpabuf *tmp;
2256 u8 *lpos;
2257 size_t tmplen;
2258 int res;
72044390 2259 u8 group_capab;
b22128ef 2260
4c08c0bd
JM		 2261 if (p2p_ie == NULL)
2262 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2263
2264 /*
2265 * (Re)Association Request - P2P IE
2266 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2267 * P2P Interface attribute (present if concurrent device and
2268 * P2P Management is enabled)
b22128ef
JM		 2269 */
2270 tmp = wpabuf_alloc(200);
2271 if (tmp == NULL)
2272 return -1;
2273
2274 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2275 group_capab = 0;
2276 if (p2p->num_groups > 0) {
2277 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2278 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2279 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2280 p2p->cross_connect)
2281 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2282 }
2283 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2284 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2285 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2286 p2p_buf_add_p2p_interface(tmp, p2p);
2287 p2p_buf_update_ie_hdr(tmp, lpos);
2288
2289 tmplen = wpabuf_len(tmp);
2290 if (tmplen > len)
2291 res = -1;
2292 else {
2293 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2294 res = tmplen;
2295 }
2296 wpabuf_free(tmp);
2297
2298 return res;
2299}
2300
2301
2302int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2303 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2304{
2305 struct wpabuf *tmp;
2306 u8 *lpos;
2307 struct p2p_device *peer;
2308 size_t tmplen;
2309 int res;
9675ce35 2310 size_t extra = 0;
b22128ef
JM		 2311
2312 if (!p2p_group)
4c08c0bd 2313 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2314
9675ce35
JM		 2315#ifdef CONFIG_WIFI_DISPLAY
2316 if (p2p->wfd_ie_assoc_req)
2317 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2318#endif /* CONFIG_WIFI_DISPLAY */
2319
86bd36f0
JM		 2320 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2321 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2322
b22128ef
JM		 2323 /*
2324 * (Re)Association Request - P2P IE
2325 * P2P Capability attribute (shall be present)
2326 * Extended Listen Timing (may be present)
2327 * P2P Device Info attribute (shall be present)
2328 */
9675ce35 2329 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2330 if (tmp == NULL)
2331 return -1;
2332
9675ce35
JM		 2333#ifdef CONFIG_WIFI_DISPLAY
2334 if (p2p->wfd_ie_assoc_req)
2335 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2336#endif /* CONFIG_WIFI_DISPLAY */
2337
86bd36f0
JM		 2338 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2339 wpabuf_put_buf(tmp,
2340 p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2341
b22128ef
JM		 2342 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2343
2344 lpos = p2p_buf_add_ie_hdr(tmp);
2345 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2346 if (p2p->ext_listen_interval)
2347 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2348 p2p->ext_listen_interval);
b22128ef
JM		 2349 p2p_buf_add_device_info(tmp, p2p, peer);
2350 p2p_buf_update_ie_hdr(tmp, lpos);
2351
2352 tmplen = wpabuf_len(tmp);
2353 if (tmplen > len)
2354 res = -1;
2355 else {
2356 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2357 res = tmplen;
2358 }
2359 wpabuf_free(tmp);
2360
2361 return res;
2362}
2363
2364
2365int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2366{
2367 struct wpabuf *p2p_ie;
2368 int ret;
2369
2370 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2371 if (p2p_ie == NULL)
2372 return 0;
2373
2374 ret = p2p_attr_text(p2p_ie, buf, end);
2375 wpabuf_free(p2p_ie);
2376 return ret;
2377}
2378
2379
c2d76aa6 2380int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2381{
0a70f34f
JM		 2382 struct p2p_message msg;
2383
0a70f34f 2384 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2385 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2386 return -1;
0a70f34f 2387
526ec4ae
JM		 2388 if (msg.p2p_device_addr) {
2389 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2390 return 0;
526ec4ae
JM		 2391 } else if (msg.device_id) {
2392 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2393 return 0;
0a70f34f 2394 }
c2d76aa6
MH		 2395 return -1;
2396}
0a70f34f 2397
c2d76aa6
MH		 2398
2399int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2400{
2401 struct wpabuf *p2p_ie;
2402 int ret;
2403
2404 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2405 P2P_IE_VENDOR_TYPE);
2406 if (p2p_ie == NULL)
2407 return -1;
2408 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2409 wpabuf_free(p2p_ie);
526ec4ae 2410 return ret;
0a70f34f
JM		 2411}
2412
2413
b22128ef
JM		 2414static void p2p_clear_go_neg(struct p2p_data *p2p)
2415{
2416 p2p->go_neg_peer = NULL;
2417 p2p_clear_timeout(p2p);
2418 p2p_set_state(p2p, P2P_IDLE);
2419}
2420
2421
2422void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2423{
2424 if (p2p->go_neg_peer == NULL) {
ed496f13 2425 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2426 return; /* No pending Group Formation */
2427 }
2428
2429 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2430 0) {
ed496f13
JM		 2431 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2432 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2433 MAC2STR(mac_addr),
2434 MAC2STR(p2p->go_neg_peer->intended_addr));
2435 return; /* Ignore unexpected peer address */
2436 }
2437
ed496f13 2438 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2439 MAC2STR(mac_addr));
2440
2441 p2p_clear_go_neg(p2p);
2442}
2443
2444
2445void p2p_group_formation_failed(struct p2p_data *p2p)
2446{
2447 if (p2p->go_neg_peer == NULL) {
ed496f13 2448 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2449 return; /* No pending Group Formation */
2450 }
2451
ed496f13 2452 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2453 MAC2STR(p2p->go_neg_peer->intended_addr));
2454
2455 p2p_clear_go_neg(p2p);
2456}
2457
2458
2459struct p2p_data * p2p_init(const struct p2p_config *cfg)
2460{
2461 struct p2p_data *p2p;
2462
1b928f96
JM		 2463 if (cfg->max_peers < 1 ||
2464 cfg->passphrase_len < 8 || cfg->passphrase_len > 63)
b22128ef
JM		 2465 return NULL;
2466
2467 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2468 if (p2p == NULL)
2469 return NULL;
2470 p2p->cfg = (struct p2p_config *) (p2p + 1);
2471 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2472 if (cfg->dev_name)
2473 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2474 if (cfg->manufacturer)
2475 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2476 if (cfg->model_name)
2477 p2p->cfg->model_name = os_strdup(cfg->model_name);
2478 if (cfg->model_number)
2479 p2p->cfg->model_number = os_strdup(cfg->model_number);
2480 if (cfg->serial_number)
2481 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2482 if (cfg->pref_chan) {
2483 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2484 sizeof(struct p2p_channel));
2485 if (p2p->cfg->pref_chan) {
2486 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2487 cfg->num_pref_chan *
2488 sizeof(struct p2p_channel));
2489 } else
2490 p2p->cfg->num_pref_chan = 0;
2491 }
b22128ef
JM		 2492
2493 p2p->min_disc_int = 1;
2494 p2p->max_disc_int = 3;
96beff11 2495 p2p->max_disc_tu = -1;
b22128ef 2496
df2508d7
JM		 2497 if (os_get_random(&p2p->next_tie_breaker, 1) < 0)
2498 p2p->next_tie_breaker = 0;
b22128ef
JM		 2499 p2p->next_tie_breaker &= 0x01;
2500 if (cfg->sd_request)
2501 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2502 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2503 if (cfg->concurrent_operations)
2504 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2505 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2506
2507 dl_list_init(&p2p->devices);
2508
2509 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2510 p2p_expiration_timeout, p2p, NULL);
2511
4f219667
JM		 2512 p2p->go_timeout = 100;
2513 p2p->client_timeout = 20;
f667e031 2514 p2p->num_p2p_sd_queries = 0;
4f219667 2515
51e9f228
JM		 2516 p2p_dbg(p2p, "initialized");
2517 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2518 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2519
b22128ef
JM		 2520 return p2p;
2521}
2522
2523
2524void p2p_deinit(struct p2p_data *p2p)
2525{
9675ce35
JM		 2526#ifdef CONFIG_WIFI_DISPLAY
2527 wpabuf_free(p2p->wfd_ie_beacon);
2528 wpabuf_free(p2p->wfd_ie_probe_req);
2529 wpabuf_free(p2p->wfd_ie_probe_resp);
2530 wpabuf_free(p2p->wfd_ie_assoc_req);
2531 wpabuf_free(p2p->wfd_ie_invitation);
2532 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2533 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2534 wpabuf_free(p2p->wfd_ie_go_neg);
2535 wpabuf_free(p2p->wfd_dev_info);
2536 wpabuf_free(p2p->wfd_assoc_bssid);
2537 wpabuf_free(p2p->wfd_coupled_sink_info);
2538#endif /* CONFIG_WIFI_DISPLAY */
2539
b22128ef
JM		 2540 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2541 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2542 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2543 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2544 p2p_flush(p2p);
046ef4aa 2545 p2p_free_req_dev_types(p2p);
b22128ef 2546 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2547 os_free(p2p->cfg->manufacturer);
2548 os_free(p2p->cfg->model_name);
2549 os_free(p2p->cfg->model_number);
2550 os_free(p2p->cfg->serial_number);
21d996f7 2551 os_free(p2p->cfg->pref_chan);
b22128ef 2552 os_free(p2p->groups);
18708aad 2553 wpabuf_free(p2p->sd_resp);
3f9285ff 2554 os_free(p2p->after_scan_tx);
f95cac27 2555 p2p_remove_wps_vendor_extensions(p2p);
556b30da 2556 os_free(p2p->no_go_freq.range);
b22128ef
JM		 2557 os_free(p2p);
2558}
2559
2560
2561void p2p_flush(struct p2p_data *p2p)
2562{
2563 struct p2p_device *dev, *prev;
78db55b8 2564 p2p_stop_find(p2p);
b22128ef
JM		 2565 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2566 list) {
2567 dl_list_del(&dev->list);
2568 p2p_device_free(p2p, dev);
2569 }
2570 p2p_free_sd_queries(p2p);
f44ae207
JM		 2571 os_free(p2p->after_scan_tx);
2572 p2p->after_scan_tx = NULL;
b22128ef
JM		 2573}
2574
2575
9d562b79
SS		 2576int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2577{
2578 struct p2p_device *dev;
2579
2580 dev = p2p_get_device(p2p, addr);
2581 if (dev == NULL)
2582 return -1;
2583
ed496f13 2584 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79
SS		 2585
2586 if (p2p->go_neg_peer == dev)
2587 p2p->go_neg_peer = NULL;
2588
2589 dev->wps_method = WPS_NOT_READY;
ab9e3442 2590 dev->oob_pw_id = 0;
9d562b79
SS		 2591 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2592 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2593
2594 /* Check if after_scan_tx is for this peer. If so free it */
2595 if (p2p->after_scan_tx &&
2596 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2597 os_free(p2p->after_scan_tx);
2598 p2p->after_scan_tx = NULL;
2599 }
2600
2601 return 0;
2602}
2603
2604
b22128ef
JM		 2605int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2606{
2607 os_free(p2p->cfg->dev_name);
2608 if (dev_name) {
2609 p2p->cfg->dev_name = os_strdup(dev_name);
2610 if (p2p->cfg->dev_name == NULL)
2611 return -1;
2612 } else
2613 p2p->cfg->dev_name = NULL;
2614 return 0;
2615}
2616
2617
b6e01800
JM		 2618int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2619{
2620 os_free(p2p->cfg->manufacturer);
2621 p2p->cfg->manufacturer = NULL;
2622 if (manufacturer) {
2623 p2p->cfg->manufacturer = os_strdup(manufacturer);
2624 if (p2p->cfg->manufacturer == NULL)
2625 return -1;
2626 }
2627
2628 return 0;
2629}
2630
2631
2632int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2633{
2634 os_free(p2p->cfg->model_name);
2635 p2p->cfg->model_name = NULL;
2636 if (model_name) {
2637 p2p->cfg->model_name = os_strdup(model_name);
2638 if (p2p->cfg->model_name == NULL)
2639 return -1;
2640 }
2641
2642 return 0;
2643}
2644
2645
2646int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2647{
2648 os_free(p2p->cfg->model_number);
2649 p2p->cfg->model_number = NULL;
2650 if (model_number) {
2651 p2p->cfg->model_number = os_strdup(model_number);
2652 if (p2p->cfg->model_number == NULL)
2653 return -1;
2654 }
2655
2656 return 0;
2657}
2658
2659
2660int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2661{
2662 os_free(p2p->cfg->serial_number);
2663 p2p->cfg->serial_number = NULL;
2664 if (serial_number) {
2665 p2p->cfg->serial_number = os_strdup(serial_number);
2666 if (p2p->cfg->serial_number == NULL)
2667 return -1;
2668 }
2669
2670 return 0;
2671}
2672
2673
2674void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2675{
2676 p2p->cfg->config_methods = config_methods;
2677}
2678
2679
2680void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2681{
2682 os_memcpy(p2p->cfg->uuid, uuid, 16);
2683}
2684
2685
b22128ef
JM		 2686int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2687{
2688 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2689 return 0;
2690}
2691
2692
2693int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2694 size_t num_dev_types)
2695{
2696 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2697 num_dev_types = P2P_SEC_DEVICE_TYPES;
2698 p2p->cfg->num_sec_dev_types = num_dev_types;
2699 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2700 return 0;
2701}
2702
2703
f95cac27
JMB		 2704void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2705{
2706 int i;
2707
10c5d2a5 2708 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2709 wpabuf_free(p2p->wps_vendor_ext[i]);
2710 p2p->wps_vendor_ext[i] = NULL;
2711 }
2712}
2713
2714
2715int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2716 const struct wpabuf *vendor_ext)
2717{
2718 int i;
2719
2720 if (vendor_ext == NULL)
2721 return -1;
2722
10c5d2a5 2723 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 2724 if (p2p->wps_vendor_ext[i] == NULL)
2725 break;
2726 }
10c5d2a5 2727 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 2728 return -1;
2729
2730 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2731 if (p2p->wps_vendor_ext[i] == NULL)
2732 return -1;
2733
2734 return 0;
2735}
2736
2737
b22128ef
JM		 2738int p2p_set_country(struct p2p_data *p2p, const char *country)
2739{
2740 os_memcpy(p2p->cfg->country, country, 3);
2741 return 0;
2742}
2743
2744
2745void p2p_continue_find(struct p2p_data *p2p)
2746{
2747 struct p2p_device *dev;
2748 p2p_set_state(p2p, P2P_SEARCH);
2749 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
f667e031
JJ		 2750 if (dev->sd_pending_bcast_queries == 0) {
2751 /* Initialize with total number of registered broadcast
2752 * SD queries. */
2753 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
2754 }
2755
2756 if (p2p_start_sd(p2p, dev) == 0)
2757 return;
2758 if (dev->req_config_methods &&
2759 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
ed496f13 2760 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
10c4edde 2761 MACSTR " (config methods 0x%x)",
c5db8e51 2762 MAC2STR(dev->info.p2p_device_addr),
10c4edde 2763 dev->req_config_methods);
1ef2f7ff 2764 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
b22128ef
JM		 2765 return;
2766 }
2767 }
2768
96beff11 2769 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 2770}
2771
2772
2773static void p2p_sd_cb(struct p2p_data *p2p, int success)
2774{
ed496f13 2775 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 2776 success);
2777 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2778
2779 if (!success) {
f667e031 2780 p2p->sd_peer = NULL;
b22128ef
JM		 2781 p2p_continue_find(p2p);
2782 return;
2783 }
2784
2785 if (p2p->sd_peer == NULL) {
ed496f13 2786 p2p_dbg(p2p, "No SD peer entry known");
b22128ef
JM		 2787 p2p_continue_find(p2p);
2788 return;
2789 }
2790
2791 /* Wait for response from the peer */
2792 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2793 p2p_set_timeout(p2p, 0, 200000);
2794}
2795
6b56cc2d
JS		 2796
2797/**
2798 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2799 * @p2p: P2P module context from p2p_init()
2800 */
19df9b07 2801static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 2802{
2803 struct p2p_device *dev;
2804
2805 if (p2p->state != P2P_IDLE)
2806 return;
2807
2808 /*
2809 * Retry the prov disc req attempt only for the peer that the user had
175171ac 2810 * requested.
6b56cc2d
JS		 2811 */
2812
2813 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2814 if (os_memcmp(p2p->pending_pd_devaddr,
2815 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2816 continue;
2817 if (!dev->req_config_methods)
2818 continue;
6b56cc2d 2819
ed496f13 2820 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 2821 MACSTR " (config methods 0x%x)",
2822 MAC2STR(dev->info.p2p_device_addr),
2823 dev->req_config_methods);
175171ac 2824 p2p_send_prov_disc_req(p2p, dev,
8d82c210
JM		 2825 dev->flags & P2P_DEV_PD_FOR_JOIN,
2826 p2p->pd_force_freq);
6b56cc2d
JS		 2827 return;
2828 }
2829}
2830
2831
b22128ef
JM		 2832static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2833{
ed496f13 2834 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 2835 success);
6b56cc2d
JS		 2836
2837 /*
2838 * Postpone resetting the pending action state till after we actually
2839 * time out. This allows us to take some action like notifying any
2840 * interested parties about no response to the request.
2841 *
2842 * When the timer (below) goes off we check in IDLE, SEARCH, or
2843 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2844 * requests in, if this was still pending and then raise notification.
2845 */
b22128ef
JM		 2846
2847 if (!success) {
6b56cc2d
JS		 2848 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2849
488f4a71
JM		 2850 if (p2p->user_initiated_pd &&
2851 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2852 {
2853 /* Retry request from timeout to avoid busy loops */
2854 p2p->pending_action_state = P2P_PENDING_PD;
2855 p2p_set_timeout(p2p, 0, 50000);
2856 } else if (p2p->state != P2P_IDLE)
b22128ef 2857 p2p_continue_find(p2p);
6b56cc2d
JS		 2858 else if (p2p->user_initiated_pd) {
2859 p2p->pending_action_state = P2P_PENDING_PD;
2860 p2p_set_timeout(p2p, 0, 300000);
2861 }
b22128ef
JM		 2862 return;
2863 }
2864
6b56cc2d
JS		 2865 /*
2866 * This postponing, of resetting pending_action_state, needs to be
2867 * done only for user initiated PD requests and not internal ones.
2868 */
2869 if (p2p->user_initiated_pd)
2870 p2p->pending_action_state = P2P_PENDING_PD;
2871 else
2872 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2873
b22128ef
JM		 2874 /* Wait for response from the peer */
2875 if (p2p->state == P2P_SEARCH)
2876 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2877 p2p_set_timeout(p2p, 0, 200000);
2878}
2879
2880
2881int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
acb69cec 2882 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 2883 size_t ies_len)
b22128ef 2884{
acb69cec 2885 if (os_reltime_before(rx_time, &p2p->find_start)) {
a5b5e830
JM		 2886 /*
2887 * The driver may have cached (e.g., in cfg80211 BSS table) the
2888 * scan results for relatively long time. To avoid reporting
2889 * stale information, update P2P peers only based on results
2890 * that have based on frames received after the last p2p_find
2891 * operation was started.
2892 */
ed496f13
JM		 2893 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
2894 " (rx_time=%u.%06u)",
a5b5e830
JM		 2895 MAC2STR(bssid), (unsigned int) rx_time->sec,
2896 (unsigned int) rx_time->usec);
2897 return 0;
2898 }
2899
c5f10e80 2900 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 2901
b22128ef
JM		 2902 return 0;
2903}
2904
2905
2906void p2p_scan_res_handled(struct p2p_data *p2p)
2907{
2908 if (!p2p->p2p_scan_running) {
ed496f13 2909 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 2910 }
2911 p2p->p2p_scan_running = 0;
2912 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2913
2914 if (p2p_run_after_scan(p2p))
2915 return;
2916 if (p2p->state == P2P_SEARCH)
2917 p2p_continue_find(p2p);
2918}
2919
2920
6d92fa6e 2921void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 2922{
9675ce35
JM		 2923 u8 *len;
2924
2925#ifdef CONFIG_WIFI_DISPLAY
2926 if (p2p->wfd_ie_probe_req)
2927 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2928#endif /* CONFIG_WIFI_DISPLAY */
2929
86bd36f0
JM		 2930 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
2931 wpabuf_put_buf(ies,
2932 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
2933
9675ce35 2934 len = p2p_buf_add_ie_hdr(ies);
18485b54
MH		 2935 p2p_buf_add_capability(ies, p2p->dev_capab &
2936 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
6d92fa6e
JM		 2937 if (dev_id)
2938 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 2939 if (p2p->cfg->reg_class && p2p->cfg->channel)
2940 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2941 p2p->cfg->reg_class,
2942 p2p->cfg->channel);
2943 if (p2p->ext_listen_interval)
2944 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2945 p2p->ext_listen_interval);
2946 /* TODO: p2p_buf_add_operating_channel() if GO */
2947 p2p_buf_update_ie_hdr(ies, len);
2948}
2949
2950
206e1f42
JM		 2951size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2952{
9675ce35
JM		 2953 size_t len = 100;
2954
2955#ifdef CONFIG_WIFI_DISPLAY
2956 if (p2p && p2p->wfd_ie_probe_req)
2957 len += wpabuf_len(p2p->wfd_ie_probe_req);
2958#endif /* CONFIG_WIFI_DISPLAY */
2959
86bd36f0
JM		 2960 if (p2p && p2p->vendor_elem &&
2961 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
2962 len += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
2963
9675ce35 2964 return len;
206e1f42
JM		 2965}
2966
2967
b22128ef
JM		 2968int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2969{
2970 return p2p_attr_text(p2p_ie, buf, end);
2971}
2972
2973
2974static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2975{
2976 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 2977 int timeout;
b22128ef 2978
ed496f13 2979 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 2980
2981 if (dev == NULL) {
ed496f13 2982 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 2983 return;
2984 }
2985
2986 if (success) {
b22128ef
JM		 2987 if (dev->flags & P2P_DEV_USER_REJECTED) {
2988 p2p_set_state(p2p, P2P_IDLE);
2989 return;
2990 }
a1d2ab32
NKG		 2991 } else if (dev->go_neg_req_sent) {
2992 /* Cancel the increment from p2p_connect_send() on failure */
2993 dev->go_neg_req_sent--;
b22128ef
JM		 2994 }
2995
2996 if (!success &&
c5db8e51 2997 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 2998 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 2999 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 3000 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 3001 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3002 p2p_send_dev_disc_req(p2p, dev);
3003 return;
3004 }
3005
3006 /*
3007 * Use P2P find, if needed, to find the other device from its listen
3008 * channel.
3009 */
3010 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 3011 timeout = success ? 500000 : 100000;
3012 if (!success && p2p->go_neg_peer &&
3013 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
3014 unsigned int r;
3015 /*
3016 * Peer is expected to wait our response and we will skip the
3017 * listen phase. Add some randomness to the wait time here to
3018 * make it less likely to hit cases where we could end up in
3019 * sync with peer not listening.
3020 */
df2508d7
JM		 3021 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3022 r = 0;
fb8984fd
JM		 3023 timeout += r % 100000;
3024 }
3025 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 3026}
3027
3028
3029static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
3030{
ed496f13 3031 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 3032 success);
3033 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 3034 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 3035 return;
3036 }
3037 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 3038 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3039}
3040
3041
7800d45c
JM		 3042static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
3043 const u8 *addr)
b22128ef 3044{
ed496f13 3045 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272
JM		 3046 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
3047 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
3048 p2p->go_neg_peer->status);
7800d45c
JM		 3049 } else if (success) {
3050 struct p2p_device *dev;
3051 dev = p2p_get_device(p2p, addr);
3052 if (dev &&
3053 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
3054 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 3055 }
b22128ef
JM		 3056}
3057
3058
93b7ddd0
JM		 3059static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
3060 enum p2p_send_action_result result)
b22128ef
JM		 3061{
3062 struct p2p_device *dev;
3063
ed496f13 3064 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
93b7ddd0 3065 if (result == P2P_SEND_ACTION_FAILED) {
0e0e1e56 3066 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
93b7ddd0
JM		 3067 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3068 return;
3069 }
0e0e1e56
NS		 3070
3071 dev = p2p->go_neg_peer;
3072
93b7ddd0 3073 if (result == P2P_SEND_ACTION_NO_ACK) {
0e0e1e56
NS		 3074 /*
3075 * Retry GO Negotiation Confirmation
3076 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3077 * ACK for confirmation.
3078 */
3079 if (dev && dev->go_neg_conf &&
3080 dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
3081 p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
3082 dev->go_neg_conf_sent);
3083 p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
3084 if (p2p_send_action(p2p, dev->go_neg_conf_freq,
3085 dev->info.p2p_device_addr,
3086 p2p->cfg->dev_addr,
3087 dev->info.p2p_device_addr,
3088 wpabuf_head(dev->go_neg_conf),
3089 wpabuf_len(dev->go_neg_conf), 0) >=
3090 0) {
3091 dev->go_neg_conf_sent++;
3092 return;
3093 }
3094 p2p_dbg(p2p, "Failed to re-send Action frame");
3095
3096 /*
3097 * Continue with the assumption that the first attempt
3098 * went through and just the ACK frame was lost.
3099 */
3100 }
3101
b22128ef
JM		 3102 /*
3103 * It looks like the TX status for GO Negotiation Confirm is
3104 * often showing failure even when the peer has actually
3105 * received the frame. Since the peer may change channels
3106 * immediately after having received the frame, we may not see
3107 * an Ack for retries, so just dropping a single frame may
3108 * trigger this. To allow the group formation to succeed if the
3109 * peer did indeed receive the frame, continue regardless of
3110 * the TX status.
3111 */
ed496f13 3112 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 3113 }
3114
0e0e1e56
NS		 3115 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3116
b22128ef
JM		 3117 if (dev == NULL)
3118 return;
3119
3120 p2p_go_complete(p2p, dev);
3121}
3122
3123
3124void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 3125 const u8 *src, const u8 *bssid,
3126 enum p2p_send_action_result result)
b22128ef
JM		 3127{
3128 enum p2p_pending_action_state state;
93b7ddd0 3129 int success;
b22128ef 3130
ed496f13 3131 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
93b7ddd0 3132 " src=" MACSTR " bssid=" MACSTR " result=%d",
b22128ef 3133 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
93b7ddd0
JM		 3134 MAC2STR(bssid), result);
3135 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 3136 state = p2p->pending_action_state;
3137 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3138 switch (state) {
3139 case P2P_NO_PENDING_ACTION:
c5c2d942
JM		 3140 if (p2p->send_action_in_progress) {
3141 p2p->send_action_in_progress = 0;
3142 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3143 }
63a965c3
JM		 3144 if (p2p->after_scan_tx_in_progress) {
3145 p2p->after_scan_tx_in_progress = 0;
3146 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
3147 p2p_run_after_scan(p2p))
3148 break;
3149 if (p2p->state == P2P_SEARCH) {
ed496f13 3150 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
63a965c3
JM		 3151 p2p_continue_find(p2p);
3152 }
3153 }
b22128ef
JM		 3154 break;
3155 case P2P_PENDING_GO_NEG_REQUEST:
3156 p2p_go_neg_req_cb(p2p, success);
3157 break;
3158 case P2P_PENDING_GO_NEG_RESPONSE:
3159 p2p_go_neg_resp_cb(p2p, success);
3160 break;
3161 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 3162 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 3163 break;
3164 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 3165 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 3166 break;
3167 case P2P_PENDING_SD:
3168 p2p_sd_cb(p2p, success);
3169 break;
3170 case P2P_PENDING_PD:
3171 p2p_prov_disc_cb(p2p, success);
3172 break;
3173 case P2P_PENDING_INVITATION_REQUEST:
3174 p2p_invitation_req_cb(p2p, success);
3175 break;
3176 case P2P_PENDING_INVITATION_RESPONSE:
3177 p2p_invitation_resp_cb(p2p, success);
3178 break;
3179 case P2P_PENDING_DEV_DISC_REQUEST:
3180 p2p_dev_disc_req_cb(p2p, success);
3181 break;
3182 case P2P_PENDING_DEV_DISC_RESPONSE:
3183 p2p_dev_disc_resp_cb(p2p, success);
3184 break;
3185 case P2P_PENDING_GO_DISC_REQ:
3186 p2p_go_disc_req_cb(p2p, success);
3187 break;
3188 }
63a965c3
JM		 3189
3190 p2p->after_scan_tx_in_progress = 0;
b22128ef
JM		 3191}
3192
3193
3194void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3195 unsigned int duration)
3196{
3197 if (freq == p2p->pending_client_disc_freq) {
ed496f13 3198 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 3199 p2p->pending_client_disc_freq = 0;
3200 return;
3201 }
3202
3203 if (freq != p2p->pending_listen_freq) {
ed496f13 3204 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3205 freq, duration, p2p->pending_listen_freq);
3206 return;
3207 }
3208
ed496f13 3209 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3210 p2p->pending_listen_sec, p2p->pending_listen_usec,
3211 p2p->pending_listen_freq);
3212 p2p->in_listen = 1;
0b8889d8 3213 p2p->drv_in_listen = freq;
b22128ef
JM		 3214 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3215 /*
3216 * Add 20 msec extra wait to avoid race condition with driver
3217 * remain-on-channel end event, i.e., give driver more time to
3218 * complete the operation before our timeout expires.
3219 */
3220 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3221 p2p->pending_listen_usec + 20000);
3222 }
3223
3224 p2p->pending_listen_freq = 0;
3225}
3226
3227
3228int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3229{
ed496f13 3230 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3231 p2p->drv_in_listen = 0;
3232 if (p2p->in_listen)
3233 return 0; /* Internal timeout will trigger the next step */
3234
3235 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3236 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3237 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
e24cf97c
JM		 3238 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3239 return 0;
3240 }
3241
b22128ef
JM		 3242 p2p_set_state(p2p, P2P_CONNECT);
3243 p2p_connect_send(p2p, p2p->go_neg_peer);
3244 return 1;
3245 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3246 if (p2p->p2p_scan_running) {
3247 /*
3248 * Search is already in progress. This can happen if
3249 * an Action frame RX is reported immediately after
3250 * the end of a remain-on-channel operation and the
3251 * response frame to that is sent using an offchannel
3252 * operation while in p2p_find. Avoid an attempt to
3253 * restart a scan here.
3254 */
ed496f13 3255 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3256 return 1;
3257 }
3fe8b68d
JM		 3258 if (p2p->pending_listen_freq) {
3259 /*
3260 * Better wait a bit if the driver is unable to start
3261 * offchannel operation for some reason. p2p_search()
3262 * will be started from internal timeout.
3263 */
ed496f13 3264 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3265 p2p_set_timeout(p2p, 0, 100000);
3266 return 1;
3267 }
37448ede 3268 if (p2p->search_delay) {
ed496f13 3269 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3270 p2p->search_delay);
3271 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3272 (p2p->search_delay % 1000) * 1000);
3273 return 1;
3274 }
b22128ef
JM		 3275 p2p_search(p2p);
3276 return 1;
3277 }
3278
3279 return 0;
3280}
3281
3282
3283static void p2p_timeout_connect(struct p2p_data *p2p)
3284{
3285 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3286 if (p2p->go_neg_peer &&
3287 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3288 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
579a8098
JM		 3289 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3290 return;
3291 }
fb8984fd
JM		 3292 if (p2p->go_neg_peer &&
3293 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3294 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3295 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3296 p2p_connect_send(p2p, p2p->go_neg_peer);
3297 return;
3298 }
fdd48ff6
JM		 3299 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3300 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3301 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3302 p2p_set_timeout(p2p, 0, 30000);
3303 return;
3304 }
b22128ef 3305 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3306 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3307}
3308
3309
3310static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3311{
3312 if (p2p->go_neg_peer) {
3313 if (p2p->drv_in_listen) {
ed496f13 3314 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3315 return;
3316 }
9dac8c3e
FM		 3317
3318 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3319 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
9dac8c3e
FM		 3320 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3321 return;
3322 }
3323
b22128ef
JM		 3324 p2p_set_state(p2p, P2P_CONNECT);
3325 p2p_connect_send(p2p, p2p->go_neg_peer);
3326 } else
3327 p2p_set_state(p2p, P2P_IDLE);
3328}
3329
3330
3331static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3332{
b22128ef 3333 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
a2d63657
RR		 3334
3335 if (p2p->cfg->is_concurrent_session_active &&
3336 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3337 p2p_set_timeout(p2p, 0, 500000);
3338 else
3339 p2p_set_timeout(p2p, 0, 200000);
b22128ef
JM		 3340}
3341
3342
3343static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3344{
3345 struct p2p_device *dev = p2p->go_neg_peer;
388444e8 3346 struct os_reltime now;
b22128ef
JM		 3347
3348 if (dev == NULL) {
ed496f13 3349 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3350 return;
3351 }
3352
388444e8
RR		 3353 os_get_reltime(&now);
3354 if (os_reltime_expired(&now, &dev->go_neg_wait_started, 120)) {
ed496f13 3355 p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation");
b22128ef
JM		 3356 p2p_go_neg_failed(p2p, dev, -1);
3357 return;
3358 }
3359
ed496f13 3360 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3361 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3362 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3363}
3364
3365
3366static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3367{
ed496f13 3368 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3369 if (p2p->sd_peer) {
3370 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 3371 p2p->sd_peer = NULL;
3372 }
3373 p2p_continue_find(p2p);
3374}
3375
3376
3377static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3378{
ed496f13 3379 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3380 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3381 p2p_continue_find(p2p);
3382}
3383
3384
6b56cc2d
JS		 3385static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3386{
3387 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3388
3389 /*
3390 * For user initiated PD requests that we have not gotten any responses
3391 * for while in IDLE state, we retry them a couple of times before
3392 * giving up.
3393 */
3394 if (!p2p->user_initiated_pd)
3395 return;
3396
ed496f13 3397 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 3398
3399 if (p2p->pd_retries) {
3400 p2p->pd_retries--;
3401 p2p_retry_pd(p2p);
3402 } else {
175171ac
JM		 3403 struct p2p_device *dev;
3404 int for_join = 0;
3405
3406 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3407 if (os_memcmp(p2p->pending_pd_devaddr,
3408 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3409 continue;
3410 if (dev->req_config_methods &&
3411 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3412 for_join = 1;
3413 }
3414
349b213c
JS		 3415 if (p2p->cfg->prov_disc_fail)
3416 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3417 p2p->pending_pd_devaddr,
175171ac
JM		 3418 for_join ?
3419 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3420 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3421 p2p_reset_pending_pd(p2p);
3422 }
3423}
3424
3425
b22128ef
JM		 3426static void p2p_timeout_invite(struct p2p_data *p2p)
3427{
3428 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3429 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3430 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3431 /*
3432 * Better remain on operating channel instead of listen channel
3433 * when running a group.
3434 */
ed496f13 3435 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 3436 p2p_set_timeout(p2p, 0, 100000);
3437 return;
3438 }
96beff11 3439 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3440}
3441
3442
3443static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3444{
3445 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3446 p2p_set_state(p2p, P2P_INVITE);
3447 p2p_invite_send(p2p, p2p->invite_peer,
8e9f53c3 3448 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
b22128ef
JM		 3449 } else {
3450 if (p2p->invite_peer) {
ed496f13 3451 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 3452 if (p2p->cfg->invitation_result)
3453 p2p->cfg->invitation_result(
dbca75f8 3454 p2p->cfg->cb_ctx, -1, NULL, NULL,
dcd25d4c 3455 p2p->invite_peer->info.p2p_device_addr,
41d5ce9e 3456 0, 0);
b22128ef
JM		 3457 }
3458 p2p_set_state(p2p, P2P_IDLE);
3459 }
3460}
3461
3462
3463static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3464{
3465 struct p2p_data *p2p = eloop_ctx;
3466
ed496f13 3467 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3468
3469 p2p->in_listen = 0;
3470
3471 switch (p2p->state) {
3472 case P2P_IDLE:
6b56cc2d
JS		 3473 /* Check if we timed out waiting for PD req */
3474 if (p2p->pending_action_state == P2P_PENDING_PD)
3475 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3476 break;
3477 case P2P_SEARCH:
6b56cc2d
JS		 3478 /* Check if we timed out waiting for PD req */
3479 if (p2p->pending_action_state == P2P_PENDING_PD)
3480 p2p_timeout_prov_disc_req(p2p);
37448ede 3481 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 3482 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3483 p2p->search_delay);
3484 p2p->in_search_delay = 1;
3485 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3486 (p2p->search_delay % 1000) * 1000);
3487 break;
3488 }
3489 p2p->in_search_delay = 0;
b22128ef
JM		 3490 p2p_search(p2p);
3491 break;
3492 case P2P_CONNECT:
3493 p2p_timeout_connect(p2p);
3494 break;
3495 case P2P_CONNECT_LISTEN:
3496 p2p_timeout_connect_listen(p2p);
3497 break;
3498 case P2P_GO_NEG:
3499 break;
3500 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3501 /* Check if we timed out waiting for PD req */
3502 if (p2p->pending_action_state == P2P_PENDING_PD)
3503 p2p_timeout_prov_disc_req(p2p);
3504
b22128ef 3505 if (p2p->ext_listen_only) {
ed496f13 3506 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 3507 p2p->ext_listen_only = 0;
3508 p2p_set_state(p2p, P2P_IDLE);
3509 }
3510 break;
3511 case P2P_WAIT_PEER_CONNECT:
3512 p2p_timeout_wait_peer_connect(p2p);
3513 break;
3514 case P2P_WAIT_PEER_IDLE:
3515 p2p_timeout_wait_peer_idle(p2p);
3516 break;
3517 case P2P_SD_DURING_FIND:
3518 p2p_timeout_sd_during_find(p2p);
3519 break;
3520 case P2P_PROVISIONING:
3521 break;
3522 case P2P_PD_DURING_FIND:
3523 p2p_timeout_prov_disc_during_find(p2p);
3524 break;
3525 case P2P_INVITE:
3526 p2p_timeout_invite(p2p);
3527 break;
3528 case P2P_INVITE_LISTEN:
3529 p2p_timeout_invite_listen(p2p);
3530 break;
3531 }
3532}
3533
3534
3535int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3536{
3537 struct p2p_device *dev;
3538
3539 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 3540 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3541 MACSTR, MAC2STR(peer_addr));
b22128ef 3542 if (dev == NULL) {
ed496f13 3543 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 3544 return -1;
3545 }
3546 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3547 dev->flags |= P2P_DEV_USER_REJECTED;
3548 return 0;
3549}
3550
3551
e5a359cf 3552const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3553{
3554 switch (method) {
3555 case WPS_NOT_READY:
3556 return "not-ready";
b22128ef
JM		 3557 case WPS_PIN_DISPLAY:
3558 return "Display";
3559 case WPS_PIN_KEYPAD:
3560 return "Keypad";
3561 case WPS_PBC:
3562 return "PBC";
c00ab85f
JM		 3563 case WPS_NFC:
3564 return "NFC";
b22128ef
JM		 3565 }
3566
3567 return "??";
3568}
3569
3570
3571static const char * p2p_go_state_text(enum p2p_go_state go_state)
3572{
3573 switch (go_state) {
3574 case UNKNOWN_GO:
3575 return "unknown";
3576 case LOCAL_GO:
3577 return "local";
3578 case REMOTE_GO:
3579 return "remote";
3580 }
3581
3582 return "??";
3583}
3584
3585
b3ffc80b
JM		 3586const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3587 const u8 *addr, int next)
b22128ef
JM		 3588{
3589 struct p2p_device *dev;
b22128ef
JM		 3590
3591 if (addr)
3592 dev = p2p_get_device(p2p, addr);
3593 else
3594 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3595
3596 if (dev && next) {
3597 dev = dl_list_first(&dev->list, struct p2p_device, list);
3598 if (&dev->list == &p2p->devices)
3599 dev = NULL;
3600 }
3601
3602 if (dev == NULL)
b3ffc80b
JM		 3603 return NULL;
3604
3605 return &dev->info;
3606}
3607
3608
3609int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3610 char *buf, size_t buflen)
3611{
3612 struct p2p_device *dev;
3613 int res;
3614 char *pos, *end;
acb69cec 3615 struct os_reltime now;
b3ffc80b
JM		 3616
3617 if (info == NULL)
b22128ef
JM		 3618 return -1;
3619
b3ffc80b
JM		 3620 dev = (struct p2p_device *) (((u8 *) info) -
3621 offsetof(struct p2p_device, info));
3622
b22128ef
JM		 3623 pos = buf;
3624 end = buf + buflen;
3625
acb69cec 3626 os_get_reltime(&now);
b22128ef
JM		 3627 res = os_snprintf(pos, end - pos,
3628 "age=%d\n"
3629 "listen_freq=%d\n"
b22128ef
JM		 3630 "wps_method=%s\n"
3631 "interface_addr=" MACSTR "\n"
3632 "member_in_go_dev=" MACSTR "\n"
3633 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 3634 "go_neg_req_sent=%d\n"
3635 "go_state=%s\n"
3636 "dialog_token=%u\n"
3637 "intended_addr=" MACSTR "\n"
3638 "country=%c%c\n"
3639 "oper_freq=%d\n"
3640 "req_config_methods=0x%x\n"
f667e031 3641 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef 3642 "status=%d\n"
b22128ef
JM		 3643 "invitation_reqs=%u\n",
3644 (int) (now.sec - dev->last_seen.sec),
3645 dev->listen_freq,
b22128ef
JM		 3646 p2p_wps_method_text(dev->wps_method),
3647 MAC2STR(dev->interface_addr),
3648 MAC2STR(dev->member_in_go_dev),
3649 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 3650 dev->go_neg_req_sent,
3651 p2p_go_state_text(dev->go_state),
3652 dev->dialog_token,
3653 MAC2STR(dev->intended_addr),
3654 dev->country[0] ? dev->country[0] : '_',
3655 dev->country[1] ? dev->country[1] : '_',
3656 dev->oper_freq,
3657 dev->req_config_methods,
3658 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3659 "[PROBE_REQ_ONLY]" : "",
3660 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3661 dev->flags & P2P_DEV_NOT_YET_READY ?
3662 "[NOT_YET_READY]" : "",
b22128ef
JM		 3663 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3664 "[PD_PEER_DISPLAY]" : "",
3665 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3666 "[PD_PEER_KEYPAD]" : "",
3667 dev->flags & P2P_DEV_USER_REJECTED ?
3668 "[USER_REJECTED]" : "",
3669 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3670 "[PEER_WAITING_RESPONSE]" : "",
3671 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3672 "[PREFER_PERSISTENT_GROUP]" : "",
3673 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3674 "[WAIT_GO_NEG_RESPONSE]" : "",
3675 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3676 "[WAIT_GO_NEG_CONFIRM]" : "",
3677 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3678 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 3679 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 3680 "[FORCE_FREQ]" : "",
3681 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3682 "[PD_FOR_JOIN]" : "",
b22128ef 3683 dev->status,
b22128ef
JM		 3684 dev->invitation_reqs);
3685 if (res < 0 || res >= end - pos)
3686 return pos - buf;
3687 pos += res;
3688
3689 if (dev->ext_listen_period) {
3690 res = os_snprintf(pos, end - pos,
3691 "ext_listen_period=%u\n"
3692 "ext_listen_interval=%u\n",
3693 dev->ext_listen_period,
3694 dev->ext_listen_interval);
3695 if (res < 0 || res >= end - pos)
3696 return pos - buf;
3697 pos += res;
3698 }
3699
3700 if (dev->oper_ssid_len) {
3701 res = os_snprintf(pos, end - pos,
3702 "oper_ssid=%s\n",
3703 wpa_ssid_txt(dev->oper_ssid,
3704 dev->oper_ssid_len));
3705 if (res < 0 || res >= end - pos)
3706 return pos - buf;
3707 pos += res;
3708 }
3709
9675ce35
JM		 3710#ifdef CONFIG_WIFI_DISPLAY
3711 if (dev->info.wfd_subelems) {
3712 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3713 if (res < 0 || res >= end - pos)
3714 return pos - buf;
3715 pos += res;
3716
3717 pos += wpa_snprintf_hex(pos, end - pos,
3718 wpabuf_head(dev->info.wfd_subelems),
3719 wpabuf_len(dev->info.wfd_subelems));
3720
3721 res = os_snprintf(pos, end - pos, "\n");
3722 if (res < 0 || res >= end - pos)
3723 return pos - buf;
3724 pos += res;
3725 }
3726#endif /* CONFIG_WIFI_DISPLAY */
3727
b22128ef
JM		 3728 return pos - buf;
3729}
3730
3731
b3bcc0f5
JM		 3732int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3733{
3734 return p2p_get_device(p2p, addr) != NULL;
3735}
3736
3737
b22128ef
JM		 3738void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3739{
3740 if (enabled) {
ed496f13 3741 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 3742 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3743 } else {
ed496f13 3744 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 3745 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3746 }
3747}
3748
3749
3750static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3751 u32 duration2, u32 interval2)
3752{
3753 struct wpabuf *req;
3754 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3755 u8 *len;
3756
3757 req = wpabuf_alloc(100);
3758 if (req == NULL)
3759 return NULL;
3760
3761 if (duration1 || interval1) {
3762 os_memset(&desc1, 0, sizeof(desc1));
3763 desc1.count_type = 1;
3764 desc1.duration = duration1;
3765 desc1.interval = interval1;
3766 ptr1 = &desc1;
3767
3768 if (duration2 || interval2) {
3769 os_memset(&desc2, 0, sizeof(desc2));
3770 desc2.count_type = 2;
3771 desc2.duration = duration2;
3772 desc2.interval = interval2;
3773 ptr2 = &desc2;
3774 }
3775 }
3776
3777 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3778 len = p2p_buf_add_ie_hdr(req);
3779 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3780 p2p_buf_update_ie_hdr(req, len);
3781
3782 return req;
3783}
3784
3785
3786int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3787 const u8 *own_interface_addr, unsigned int freq,
3788 u32 duration1, u32 interval1, u32 duration2,
3789 u32 interval2)
3790{
3791 struct wpabuf *req;
3792
ed496f13
JM		 3793 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
3794 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
3795 "dur2=%u int2=%u",
b22128ef
JM		 3796 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3797 freq, duration1, interval1, duration2, interval2);
3798
3799 req = p2p_build_presence_req(duration1, interval1, duration2,
3800 interval2);
3801 if (req == NULL)
3802 return -1;
3803
3804 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3805 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3806 go_interface_addr,
3807 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 3808 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3809 }
3810 wpabuf_free(req);
3811
3812 return 0;
3813}
3814
3815
3816static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3817 size_t noa_len, u8 dialog_token)
3818{
3819 struct wpabuf *resp;
3820 u8 *len;
3821
3822 resp = wpabuf_alloc(100 + noa_len);
3823 if (resp == NULL)
3824 return NULL;
3825
3826 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3827 len = p2p_buf_add_ie_hdr(resp);
3828 p2p_buf_add_status(resp, status);
3829 if (noa) {
3830 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3831 wpabuf_put_le16(resp, noa_len);
3832 wpabuf_put_data(resp, noa, noa_len);
3833 } else
3834 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3835 p2p_buf_update_ie_hdr(resp, len);
3836
3837 return resp;
3838}
3839
3840
3841static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3842 const u8 *sa, const u8 *data, size_t len,
3843 int rx_freq)
3844{
3845 struct p2p_message msg;
3846 u8 status;
3847 struct wpabuf *resp;
3848 size_t g;
3849 struct p2p_group *group = NULL;
3850 int parsed = 0;
3851 u8 noa[50];
3852 int noa_len;
3853
ed496f13 3854 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 3855
3856 for (g = 0; g < p2p->num_groups; g++) {
3857 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3858 ETH_ALEN) == 0) {
3859 group = p2p->groups[g];
3860 break;
3861 }
3862 }
3863 if (group == NULL) {
ed496f13 3864 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 3865 MACSTR, MAC2STR(da));
3866 return;
3867 }
3868
3869 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3870 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 3871 status = P2P_SC_FAIL_INVALID_PARAMS;
3872 goto fail;
3873 }
3874 parsed = 1;
3875
3876 if (msg.noa == NULL) {
ed496f13 3877 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 3878 status = P2P_SC_FAIL_INVALID_PARAMS;
3879 goto fail;
3880 }
3881
3882 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3883
3884fail:
3885 if (p2p->cfg->get_noa)
3886 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3887 sizeof(noa));
3888 else
3889 noa_len = -1;
3890 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3891 noa_len > 0 ? noa_len : 0,
3892 msg.dialog_token);
3893 if (parsed)
3894 p2p_parse_free(&msg);
3895 if (resp == NULL)
3896 return;
3897
3898 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 3899 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3900 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 3901 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 3902 }
3903 wpabuf_free(resp);
3904}
3905
3906
3907static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3908 const u8 *sa, const u8 *data, size_t len)
3909{
3910 struct p2p_message msg;
3911
ed496f13 3912 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 3913
3914 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 3915 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 3916 return;
3917 }
3918
3919 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 3920 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 3921 p2p_parse_free(&msg);
3922 return;
3923 }
3924
c64e3a08
JM		 3925 if (p2p->cfg->presence_resp) {
3926 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
3927 msg.noa, msg.noa_len);
3928 }
3929
b22128ef 3930 if (*msg.status) {
ed496f13 3931 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 3932 *msg.status);
3933 p2p_parse_free(&msg);
3934 return;
3935 }
3936
ed496f13 3937 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 3938 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3939 msg.noa, msg.noa_len);
3940 /* TODO: process NoA */
3941 p2p_parse_free(&msg);
3942}
3943
3944
3945static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3946{
3947 struct p2p_data *p2p = eloop_ctx;
3948
3949 if (p2p->ext_listen_interval) {
3950 /* Schedule next extended listen timeout */
3951 eloop_register_timeout(p2p->ext_listen_interval_sec,
3952 p2p->ext_listen_interval_usec,
3953 p2p_ext_listen_timeout, p2p, NULL);
3954 }
3955
7e68be38
JM		 3956 if ((p2p->cfg->is_p2p_in_progress &&
3957 p2p->cfg->is_p2p_in_progress(p2p->cfg->cb_ctx)) ||
3958 (p2p->pending_action_state == P2P_PENDING_PD &&
3959 p2p->pd_retries > 0)) {
0f1034e3
SD		 3960 p2p_dbg(p2p, "Operation in progress - skip Extended Listen timeout (%s)",
3961 p2p_state_txt(p2p->state));
3962 return;
3963 }
3964
f7a69057
JM		 3965 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3966 /*
3967 * This should not really happen, but it looks like the Listen
3968 * command may fail is something else (e.g., a scan) was
3969 * running at an inconvenient time. As a workaround, allow new
3970 * Extended Listen operation to be started.
3971 */
ed496f13 3972 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 3973 p2p->ext_listen_only = 0;
3974 p2p_set_state(p2p, P2P_IDLE);
3975 }
3976
b22128ef 3977 if (p2p->state != P2P_IDLE) {
ed496f13 3978 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3979 return;
3980 }
3981
ed496f13 3982 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 3983 p2p->ext_listen_only = 1;
3984 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 3985 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 3986 p2p->ext_listen_only = 0;
3987 }
3988}
3989
3990
3991int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3992 unsigned int interval)
3993{
3994 if (period > 65535 || interval > 65535 || period > interval ||
3995 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 3996 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
3997 period, interval);
b22128ef
JM		 3998 return -1;
3999 }
4000
4001 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
4002
4003 if (interval == 0) {
ed496f13 4004 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 4005 p2p->ext_listen_period = 0;
4006 p2p->ext_listen_interval = 0;
4007 return 0;
4008 }
4009
ed496f13
JM		 4010 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4011 period, interval);
b22128ef
JM		 4012 p2p->ext_listen_period = period;
4013 p2p->ext_listen_interval = interval;
4014 p2p->ext_listen_interval_sec = interval / 1000;
4015 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
4016
4017 eloop_register_timeout(p2p->ext_listen_interval_sec,
4018 p2p->ext_listen_interval_usec,
4019 p2p_ext_listen_timeout, p2p, NULL);
4020
4021 return 0;
4022}
4023
4024
4025void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4026 const u8 *ie, size_t ie_len)
4027{
4028 struct p2p_message msg;
4029
4030 if (bssid == NULL || ie == NULL)
4031 return;
4032
4033 os_memset(&msg, 0, sizeof(msg));
4034 if (p2p_parse_ies(ie, ie_len, &msg))
4035 return;
04c366cb
EL		 4036 if (msg.minor_reason_code == NULL) {
4037 p2p_parse_free(&msg);
b22128ef 4038 return;
04c366cb 4039 }
b22128ef 4040
ed496f13 4041 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 4042 " reason_code=%u minor_reason_code=%u",
4043 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4044
4045 p2p_parse_free(&msg);
4046}
4047
4048
4049void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4050 const u8 *ie, size_t ie_len)
4051{
4052 struct p2p_message msg;
4053
4054 if (bssid == NULL || ie == NULL)
4055 return;
4056
4057 os_memset(&msg, 0, sizeof(msg));
4058 if (p2p_parse_ies(ie, ie_len, &msg))
4059 return;
04c366cb
EL		 4060 if (msg.minor_reason_code == NULL) {
4061 p2p_parse_free(&msg);
b22128ef 4062 return;
04c366cb 4063 }
b22128ef 4064
ed496f13 4065 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 4066 " reason_code=%u minor_reason_code=%u",
4067 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4068
4069 p2p_parse_free(&msg);
4070}
4071
4072
4073void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
4074{
4075 if (enabled) {
ed496f13 4076 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 4077 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
4078 } else {
ed496f13 4079 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 4080 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
4081 }
4082}
4083
4084
e3bd6e9d
IP		 4085int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
4086 u8 forced)
b22128ef 4087{
9ccd9165 4088 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 4089 return -1;
4090
ed496f13
JM		 4091 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
4092 reg_class, channel);
e3bd6e9d
IP		 4093
4094 /*
4095 * Listen channel was set in configuration or set by control interface;
4096 * cannot override it.
4097 */
4098 if (p2p->cfg->channel_forced && forced == 0)
4099 return -1;
4100
4101 if (p2p->state == P2P_IDLE) {
4102 p2p->cfg->reg_class = reg_class;
4103 p2p->cfg->channel = channel;
4104 p2p->cfg->channel_forced = forced;
4105 } else {
4106 p2p_dbg(p2p, "Defer setting listen channel");
4107 p2p->pending_reg_class = reg_class;
4108 p2p->pending_channel = channel;
4109 p2p->pending_channel_forced = forced;
4110 }
b22128ef
JM		 4111
4112 return 0;
4113}
4114
4115
e3bd6e9d
IP		 4116u8 p2p_get_listen_channel(struct p2p_data *p2p)
4117{
4118 return p2p->cfg->channel;
4119}
4120
4121
b22128ef
JM		 4122int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
4123{
ed496f13 4124 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 4125 if (postfix == NULL) {
4126 p2p->cfg->ssid_postfix_len = 0;
4127 return 0;
4128 }
4129 if (len > sizeof(p2p->cfg->ssid_postfix))
4130 return -1;
4131 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
4132 p2p->cfg->ssid_postfix_len = len;
4133 return 0;
4134}
4135
4136
2463ba70
JS		 4137int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
4138 int cfg_op_channel)
4139{
9ccd9165 4140 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 4141 return -1;
4142
ed496f13
JM		 4143 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
4144 op_reg_class, op_channel);
2463ba70
JS		 4145 p2p->cfg->op_reg_class = op_reg_class;
4146 p2p->cfg->op_channel = op_channel;
4147 p2p->cfg->cfg_op_channel = cfg_op_channel;
4148 return 0;
4149}
4150
4151
21d996f7
JM		 4152int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
4153 const struct p2p_channel *pref_chan)
4154{
4155 struct p2p_channel *n;
4156
4157 if (pref_chan) {
4158 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
4159 if (n == NULL)
4160 return -1;
4161 os_memcpy(n, pref_chan,
4162 num_pref_chan * sizeof(struct p2p_channel));
4163 } else
4164 n = NULL;
4165
4166 os_free(p2p->cfg->pref_chan);
4167 p2p->cfg->pref_chan = n;
4168 p2p->cfg->num_pref_chan = num_pref_chan;
4169
4170 return 0;
4171}
4172
4173
556b30da
JM		 4174int p2p_set_no_go_freq(struct p2p_data *p2p,
4175 const struct wpa_freq_range_list *list)
4176{
4177 struct wpa_freq_range *tmp;
4178
4179 if (list == NULL || list->num == 0) {
4180 os_free(p2p->no_go_freq.range);
4181 p2p->no_go_freq.range = NULL;
4182 p2p->no_go_freq.num = 0;
4183 return 0;
4184 }
4185
4186 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
4187 if (tmp == NULL)
4188 return -1;
4189 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
4190 os_free(p2p->no_go_freq.range);
4191 p2p->no_go_freq.range = tmp;
4192 p2p->no_go_freq.num = list->num;
4193 p2p_dbg(p2p, "Updated no GO chan list");
4194
4195 return 0;
4196}
4197
4198
b22128ef
JM		 4199int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4200 u8 *iface_addr)
4201{
4202 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4203 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4204 return -1;
4205 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4206 return 0;
4207}
80c9582a
JM		 4208
4209
4147a2cc
JM		 4210int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4211 u8 *dev_addr)
4212{
4213 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4214 if (dev == NULL)
4215 return -1;
c5db8e51 4216 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4217 return 0;
4218}
4219
4220
80c9582a
JM		 4221void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4222{
4223 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4224 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 4225 p2p_dbg(p2p, "Disable peer filter");
80c9582a 4226 else
ed496f13
JM		 4227 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4228 MAC2STR(p2p->peer_filter));
80c9582a 4229}
72044390
JM		 4230
4231
4232void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4233{
ed496f13 4234 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 4235 if (p2p->cross_connect == enabled)
4236 return;
4237 p2p->cross_connect = enabled;
4238 /* TODO: may need to tear down any action group where we are GO(?) */
4239}
f8d0131a
JM		 4240
4241
4242int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4243{
4244 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4245 if (dev == NULL)
4246 return -1;
4247 if (dev->oper_freq <= 0)
4248 return -1;
4249 return dev->oper_freq;
4250}
0f66abd2
SS		 4251
4252
4253void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4254{
ed496f13 4255 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 4256 enabled ? "enabled" : "disabled");
4257 p2p->cfg->p2p_intra_bss = enabled;
4258}
b5c9da8d
JM		 4259
4260
51e9f228
JM		 4261void p2p_update_channel_list(struct p2p_data *p2p,
4262 const struct p2p_channels *chan,
4263 const struct p2p_channels *cli_chan)
b5c9da8d 4264{
ed496f13 4265 p2p_dbg(p2p, "Update channel list");
b5c9da8d 4266 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
51e9f228
JM		 4267 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4268 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4269 sizeof(struct p2p_channels));
4270 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
b5c9da8d 4271}
3f9285ff
JM		 4272
4273
4274int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4275 const u8 *src, const u8 *bssid, const u8 *buf,
4276 size_t len, unsigned int wait_time)
4277{
4278 if (p2p->p2p_scan_running) {
ed496f13 4279 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
3f9285ff 4280 if (p2p->after_scan_tx) {
ed496f13 4281 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
3f9285ff
JM		 4282 os_free(p2p->after_scan_tx);
4283 }
4284 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4285 len);
4286 if (p2p->after_scan_tx == NULL)
4287 return -1;
4288 p2p->after_scan_tx->freq = freq;
4289 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4290 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4291 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4292 p2p->after_scan_tx->len = len;
4293 p2p->after_scan_tx->wait_time = wait_time;
4294 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4295 return 0;
4296 }
4297
4298 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4299 buf, len, wait_time);
4300}
7cfc4ac3
AGS		 4301
4302
4303void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4304 int freq_overall)
4305{
ed496f13
JM		 4306 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4307 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4308 p2p->best_freq_24 = freq_24;
4309 p2p->best_freq_5 = freq_5;
4310 p2p->best_freq_overall = freq_overall;
4311}
231bbd03
SS		 4312
4313
6cb27aa8
JM		 4314void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4315{
ed496f13 4316 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4317 p2p->own_freq_preference = freq;
4318}
4319
4320
231bbd03
SS		 4321const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4322{
4323 if (p2p == NULL || p2p->go_neg_peer == NULL)
4324 return NULL;
c5db8e51 4325 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4326}
c165d81e
JB		 4327
4328
4329const struct p2p_peer_info *
4330p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4331{
4332 struct p2p_device *dev;
4333
4334 if (addr) {
4335 dev = p2p_get_device(p2p, addr);
4336 if (!dev)
4337 return NULL;
4338
4339 if (!next) {
4340 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4341 return NULL;
4342
4343 return &dev->info;
4344 } else {
4345 do {
4346 dev = dl_list_first(&dev->list,
4347 struct p2p_device,
4348 list);
0bceb8d6 4349 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4350 return NULL;
4351 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4352 }
4353 } else {
4354 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4355 if (!dev)
4356 return NULL;
4357 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4358 dev = dl_list_first(&dev->list,
4359 struct p2p_device,
4360 list);
0bceb8d6 4361 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4362 return NULL;
4363 }
4364 }
4365
4366 return &dev->info;
4367}
303f60d3
JM		 4368
4369
4370int p2p_in_progress(struct p2p_data *p2p)
4371{
4372 if (p2p == NULL)
4373 return 0;
1b5d4714 4374 if (p2p->state == P2P_SEARCH)
99fcd404 4375 return 2;
fc6997b3 4376 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4377}
4f219667
JM		 4378
4379
4380void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4381 u8 client_timeout)
4382{
4383 if (p2p) {
4384 p2p->go_timeout = go_timeout;
4385 p2p->client_timeout = client_timeout;
4386 }
4387}
99fcd404
JM		 4388
4389
9675ce35
JM		 4390#ifdef CONFIG_WIFI_DISPLAY
4391
4392static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4393{
4394 size_t g;
4395 struct p2p_group *group;
4396
4397 for (g = 0; g < p2p->num_groups; g++) {
4398 group = p2p->groups[g];
3342c263 4399 p2p_group_force_beacon_update_ies(group);
9675ce35
JM		 4400 }
4401}
4402
4403
4404int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4405{
4406 wpabuf_free(p2p->wfd_ie_beacon);
4407 p2p->wfd_ie_beacon = ie;
4408 p2p_update_wfd_ie_groups(p2p);
4409 return 0;
4410}
4411
4412
4413int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4414{
4415 wpabuf_free(p2p->wfd_ie_probe_req);
4416 p2p->wfd_ie_probe_req = ie;
4417 return 0;
4418}
4419
4420
4421int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4422{
4423 wpabuf_free(p2p->wfd_ie_probe_resp);
4424 p2p->wfd_ie_probe_resp = ie;
4425 p2p_update_wfd_ie_groups(p2p);
4426 return 0;
4427}
4428
4429
4430int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4431{
4432 wpabuf_free(p2p->wfd_ie_assoc_req);
4433 p2p->wfd_ie_assoc_req = ie;
4434 return 0;
4435}
4436
4437
4438int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4439{
4440 wpabuf_free(p2p->wfd_ie_invitation);
4441 p2p->wfd_ie_invitation = ie;
4442 return 0;
4443}
4444
4445
4446int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4447{
4448 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4449 p2p->wfd_ie_prov_disc_req = ie;
4450 return 0;
4451}
4452
4453
4454int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4455{
4456 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4457 p2p->wfd_ie_prov_disc_resp = ie;
4458 return 0;
4459}
4460
4461
4462int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4463{
4464 wpabuf_free(p2p->wfd_ie_go_neg);
4465 p2p->wfd_ie_go_neg = ie;
4466 return 0;
4467}
4468
4469
4470int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4471{
4472 wpabuf_free(p2p->wfd_dev_info);
4473 if (elem) {
4474 p2p->wfd_dev_info = wpabuf_dup(elem);
4475 if (p2p->wfd_dev_info == NULL)
4476 return -1;
4477 } else
4478 p2p->wfd_dev_info = NULL;
4479
4480 return 0;
4481}
4482
4483
4484int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4485{
4486 wpabuf_free(p2p->wfd_assoc_bssid);
4487 if (elem) {
4488 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4489 if (p2p->wfd_assoc_bssid == NULL)
4490 return -1;
4491 } else
4492 p2p->wfd_assoc_bssid = NULL;
4493
4494 return 0;
4495}
4496
4497
4498int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4499 const struct wpabuf *elem)
4500{
4501 wpabuf_free(p2p->wfd_coupled_sink_info);
4502 if (elem) {
4503 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4504 if (p2p->wfd_coupled_sink_info == NULL)
4505 return -1;
4506 } else
4507 p2p->wfd_coupled_sink_info = NULL;
4508
4509 return 0;
4510}
4511
4512#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4513
4514
4515int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4516 int max_disc_tu)
4517{
4518 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4519 return -1;
4520
4521 p2p->min_disc_int = min_disc_int;
4522 p2p->max_disc_int = max_disc_int;
4523 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 4524 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4525 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 4526
4527 return 0;
4528}
ed496f13
JM		 4529
4530
4531void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4532{
4533 va_list ap;
4534 char buf[500];
4535
4536 if (!p2p->cfg->debug_print)
4537 return;
4538
4539 va_start(ap, fmt);
4540 vsnprintf(buf, sizeof(buf), fmt, ap);
4541 buf[sizeof(buf) - 1] = '\0';
4542 va_end(ap);
4543 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4544}
4545
4546
4547void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4548{
4549 va_list ap;
4550 char buf[500];
4551
4552 if (!p2p->cfg->debug_print)
4553 return;
4554
4555 va_start(ap, fmt);
4556 vsnprintf(buf, sizeof(buf), fmt, ap);
4557 buf[sizeof(buf) - 1] = '\0';
4558 va_end(ap);
4559 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4560}
4561
4562
4563void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4564{
4565 va_list ap;
4566 char buf[500];
4567
4568 if (!p2p->cfg->debug_print)
4569 return;
4570
4571 va_start(ap, fmt);
4572 vsnprintf(buf, sizeof(buf), fmt, ap);
4573 buf[sizeof(buf) - 1] = '\0';
4574 va_end(ap);
4575 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4576}
93588780
JM		 4577
4578
36716eef
TB		 4579void p2p_loop_on_known_peers(struct p2p_data *p2p,
4580 void (*peer_callback)(struct p2p_peer_info *peer,
4581 void *user_data),
4582 void *user_data)
4583{
4584 struct p2p_device *dev, *n;
4585
4586 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
4587 peer_callback(&dev->info, user_data);
4588 }
4589}
4590
4591
93588780
JM		 4592#ifdef CONFIG_WPS_NFC
4593
59b45d1a 4594static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
abe44e3c
JM		 4595 int client_freq,
4596 const u8 *go_dev_addr,
4597 const u8 *ssid, size_t ssid_len)
93588780
JM		 4598{
4599 struct wpabuf *buf;
4600 u8 op_class, channel;
4601 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
4602
4603 buf = wpabuf_alloc(1000);
4604 if (buf == NULL)
4605 return NULL;
4606
4607 op_class = p2p->cfg->reg_class;
4608 channel = p2p->cfg->channel;
4609
4610 p2p_buf_add_capability(buf, p2p->dev_capab &
4611 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
4612 p2p_buf_add_device_info(buf, p2p, NULL);
4613
4614 if (p2p->num_groups > 0) {
d06e9ac5 4615 int freq = p2p_group_get_freq(p2p->groups[0]);
93588780 4616 role = P2P_GO_IN_A_GROUP;
d06e9ac5
JM		 4617 if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
4618 p2p_dbg(p2p,
4619 "Unknown GO operating frequency %d MHz for NFC handover",
4620 freq);
4621 wpabuf_free(buf);
4622 return NULL;
4623 }
59b45d1a
JM		 4624 } else if (client_freq > 0) {
4625 role = P2P_CLIENT_IN_A_GROUP;
d06e9ac5
JM		 4626 if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
4627 p2p_dbg(p2p,
4628 "Unknown client operating frequency %d MHz for NFC handover",
4629 client_freq);
4630 wpabuf_free(buf);
4631 return NULL;
4632 }
93588780
JM		 4633 }
4634
4635 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
4636 channel, role);
4637
4638 if (p2p->num_groups > 0) {
4639 /* Limit number of clients to avoid very long message */
4640 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
4641 p2p_group_buf_add_id(p2p->groups[0], buf);
abe44e3c
JM		 4642 } else if (client_freq > 0 &&
4643 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
4644 ssid && ssid_len > 0) {
4645 /*
4646 * Add the optional P2P Group ID to indicate in which group this
4647 * device is a P2P Client.
4648 */
4649 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
93588780
JM		 4650 }
4651
4652 return buf;
4653}
4654
4655
59b45d1a 4656struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
abe44e3c
JM		 4657 int client_freq,
4658 const u8 *go_dev_addr,
4659 const u8 *ssid, size_t ssid_len)
93588780 4660{
abe44e3c
JM		 4661 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4662 ssid_len);
93588780
JM		 4663}
4664
4665
59b45d1a 4666struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
abe44e3c
JM		 4667 int client_freq,
4668 const u8 *go_dev_addr,
4669 const u8 *ssid, size_t ssid_len)
93588780 4670{
abe44e3c
JM		 4671 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4672 ssid_len);
93588780
JM		 4673}
4674
db6ae69e
JM		 4675
4676int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
4677 struct p2p_nfc_params *params)
4678{
4679 struct p2p_message msg;
4680 struct p2p_device *dev;
4681 const u8 *p2p_dev_addr;
59b45d1a
JM		 4682 int freq;
4683 enum p2p_role_indication role;
db6ae69e
JM		 4684
4685 params->next_step = NO_ACTION;
4686
4687 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
4688 params->p2p_attr, params->p2p_len, &msg)) {
4689 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
4690 p2p_parse_free(&msg);
4691 return -1;
4692 }
4693
4694 if (msg.p2p_device_addr)
4695 p2p_dev_addr = msg.p2p_device_addr;
4696 else if (msg.device_id)
4697 p2p_dev_addr = msg.device_id;
4698 else {
4699 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
4700 p2p_parse_free(&msg);
4701 return -1;
4702 }
4703
4704 if (msg.oob_dev_password) {
4705 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
4706 msg.oob_dev_password_len);
4707 params->oob_dev_pw_len = msg.oob_dev_password_len;
4708 }
4709
4710 dev = p2p_create_device(p2p, p2p_dev_addr);
4711 if (dev == NULL) {
4712 p2p_parse_free(&msg);
4713 return -1;
4714 }
4715
4716 params->peer = &dev->info;
4717
4718 os_get_reltime(&dev->last_seen);
4719 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
4720 p2p_copy_wps_info(p2p, dev, 0, &msg);
4721
59b45d1a
JM		 4722 if (!msg.oob_go_neg_channel) {
4723 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
4724 return -1;
4725 }
db6ae69e 4726
59b45d1a
JM		 4727 if (msg.oob_go_neg_channel[3] == 0 &&
4728 msg.oob_go_neg_channel[4] == 0)
4729 freq = 0;
4730 else
4731 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
4732 msg.oob_go_neg_channel[4]);
4733 if (freq < 0) {
4734 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
4735 return -1;
59b45d1a 4736 }
23318bea 4737 role = msg.oob_go_neg_channel[5];
db6ae69e 4738
23318bea
JM		 4739 if (role == P2P_GO_IN_A_GROUP) {
4740 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
4741 params->go_freq = freq;
abe44e3c
JM		 4742 } else if (role == P2P_CLIENT_IN_A_GROUP) {
4743 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
4744 freq);
4745 params->go_freq = freq;
23318bea
JM		 4746 } else
4747 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
4748 dev->oob_go_neg_freq = freq;
4749
4750 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
59b45d1a
JM		 4751 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
4752 p2p->cfg->channel);
4753 if (freq < 0) {
4754 p2p_dbg(p2p, "Own listen channel not known");
4755 return -1;
4756 }
4757 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
4758 dev->oob_go_neg_freq = freq;
db6ae69e
JM		 4759 }
4760
23318bea
JM		 4761 if (msg.group_id) {
4762 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
4763 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
4764 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
4765 params->go_ssid_len);
4766 }
59b45d1a 4767
db6ae69e
JM		 4768 if (dev->flags & P2P_DEV_USER_REJECTED) {
4769 p2p_dbg(p2p, "Do not report rejected device");
8a387a26 4770 p2p_parse_free(&msg);
db6ae69e
JM		 4771 return 0;
4772 }
4773
4774 if (!(dev->flags & P2P_DEV_REPORTED)) {
4775 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
4776 !(dev->flags & P2P_DEV_REPORTED_ONCE));
4777 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
4778 }
8a387a26 4779 p2p_parse_free(&msg);
db6ae69e 4780
59b45d1a 4781 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
74df9ecd 4782 params->next_step = BOTH_GO;
59b45d1a 4783 else if (role == P2P_GO_IN_A_GROUP)
db6ae69e 4784 params->next_step = JOIN_GROUP;
59b45d1a
JM		 4785 else if (role == P2P_CLIENT_IN_A_GROUP) {
4786 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
4787 params->next_step = PEER_CLIENT;
4788 } else if (p2p->num_groups > 0)
db6ae69e
JM		 4789 params->next_step = AUTH_JOIN;
4790 else if (params->sel)
4791 params->next_step = INIT_GO_NEG;
4792 else
4793 params->next_step = RESP_GO_NEG;
4794
4795 return 0;
4796}
4797
c4f87a70
JM		 4798
4799void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
4800 int go_intent,
4801 const u8 *own_interface_addr)
4802{
4803
4804 p2p->authorized_oob_dev_pw_id = dev_pw_id;
4805 if (dev_pw_id == 0) {
4806 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
4807 return;
4808 }
4809
4810 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
4811 dev_pw_id);
4812
4813 p2p->go_intent = go_intent;
4814 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
4815}
4816
93588780 4817#endif /* CONFIG_WPS_NFC */
1b928f96
JM		 4818
4819
4820int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len)
4821{
4822 if (len < 8 || len > 63)
4823 return -1;
4824 p2p->cfg->passphrase_len = len;
4825 return 0;
4826}
86bd36f0
JM		 4827
4828
4829void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem)
4830{
4831 p2p->vendor_elem = vendor_elem;
4832}
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