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P2PS: Process P2PS provisioning commands
[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"
51775096
BG		 16#include "crypto/sha256.h"
17#include "crypto/crypto.h"
b22128ef
JM		 18#include "wps/wps_i.h"
19#include "p2p_i.h"
20#include "p2p.h"
21
22
23static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
24static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
25static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
26 const u8 *sa, const u8 *data, size_t len,
27 int rx_freq);
28static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
29 const u8 *sa, const u8 *data,
30 size_t len);
31static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 32static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 33
34
40c03fd4
JM		 35/*
36 * p2p_scan recovery timeout
37 *
38 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
39 * timeout for this to avoid hitting P2P timeout unnecessarily.
40 */
41#define P2P_SCAN_TIMEOUT 35
42
b22128ef
JM		 43/**
44 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
45 * entries will be removed
46 */
dcdd3838
DS		 47#ifndef P2P_PEER_EXPIRATION_AGE
48#define P2P_PEER_EXPIRATION_AGE 60
49#endif /* P2P_PEER_EXPIRATION_AGE */
b22128ef
JM		 50
51#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
52
53static void p2p_expire_peers(struct p2p_data *p2p)
54{
55 struct p2p_device *dev, *n;
acb69cec 56 struct os_reltime now;
1d277f02 57 size_t i;
b22128ef 58
acb69cec 59 os_get_reltime(&now);
b22128ef
JM		 60 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
61 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
62 continue;
b1aebbc4 63
a691d99f
JJ		 64 if (dev == p2p->go_neg_peer) {
65 /*
66 * GO Negotiation is in progress with the peer, so
67 * don't expire the peer entry until GO Negotiation
68 * fails or times out.
69 */
70 continue;
71 }
72
b1aebbc4
JM		 73 if (p2p->cfg->go_connected &&
74 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
75 dev->info.p2p_device_addr)) {
76 /*
77 * We are connected as a client to a group in which the
78 * peer is the GO, so do not expire the peer entry.
79 */
acb69cec 80 os_get_reltime(&dev->last_seen);
b1aebbc4
JM		 81 continue;
82 }
83
1d277f02
JM		 84 for (i = 0; i < p2p->num_groups; i++) {
85 if (p2p_group_is_client_connected(
86 p2p->groups[i], dev->info.p2p_device_addr))
87 break;
88 }
89 if (i < p2p->num_groups) {
90 /*
91 * The peer is connected as a client in a group where
92 * we are the GO, so do not expire the peer entry.
93 */
acb69cec 94 os_get_reltime(&dev->last_seen);
1d277f02
JM		 95 continue;
96 }
97
ed496f13
JM		 98 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
99 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 100 dl_list_del(&dev->list);
101 p2p_device_free(p2p, dev);
102 }
103}
104
105
106static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
107{
108 struct p2p_data *p2p = eloop_ctx;
109 p2p_expire_peers(p2p);
110 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
111 p2p_expiration_timeout, p2p, NULL);
112}
113
114
115static const char * p2p_state_txt(int state)
116{
117 switch (state) {
118 case P2P_IDLE:
119 return "IDLE";
120 case P2P_SEARCH:
121 return "SEARCH";
122 case P2P_CONNECT:
123 return "CONNECT";
124 case P2P_CONNECT_LISTEN:
125 return "CONNECT_LISTEN";
126 case P2P_GO_NEG:
127 return "GO_NEG";
128 case P2P_LISTEN_ONLY:
129 return "LISTEN_ONLY";
130 case P2P_WAIT_PEER_CONNECT:
131 return "WAIT_PEER_CONNECT";
132 case P2P_WAIT_PEER_IDLE:
133 return "WAIT_PEER_IDLE";
134 case P2P_SD_DURING_FIND:
135 return "SD_DURING_FIND";
136 case P2P_PROVISIONING:
137 return "PROVISIONING";
138 case P2P_PD_DURING_FIND:
139 return "PD_DURING_FIND";
140 case P2P_INVITE:
141 return "INVITE";
142 case P2P_INVITE_LISTEN:
143 return "INVITE_LISTEN";
144 default:
145 return "?";
146 }
147}
148
149
4c559019
JM		 150const char * p2p_get_state_txt(struct p2p_data *p2p)
151{
152 return p2p_state_txt(p2p->state);
153}
154
155
6df08d03
KV		 156struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p)
157{
158 return p2p ? p2p->p2ps_adv_list : NULL;
159}
160
161
6d908514
KV		 162void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr)
163{
164 if (p2p && intended_addr)
165 os_memcpy(p2p->intended_addr, intended_addr, ETH_ALEN);
166}
167
168
ec437d9e
JJ		 169u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
170{
171 struct p2p_device *dev = NULL;
172
173 if (!addr || !p2p)
174 return 0;
175
176 dev = p2p_get_device(p2p, addr);
177 if (dev)
178 return dev->wps_prov_info;
179 else
180 return 0;
181}
182
183
10531d21 184void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 185{
186 struct p2p_device *dev = NULL;
187
10531d21 188 if (!addr || !p2p)
ec437d9e
JJ		 189 return;
190
10531d21 191 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 192 if (dev)
193 dev->wps_prov_info = 0;
194}
195
196
b22128ef
JM		 197void p2p_set_state(struct p2p_data *p2p, int new_state)
198{
ed496f13 199 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 200 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
201 p2p->state = new_state;
e3bd6e9d
IP		 202
203 if (new_state == P2P_IDLE && p2p->pending_channel) {
204 p2p_dbg(p2p, "Apply change in listen channel");
205 p2p->cfg->reg_class = p2p->pending_reg_class;
206 p2p->cfg->channel = p2p->pending_channel;
207 p2p->pending_reg_class = 0;
208 p2p->pending_channel = 0;
209 }
b22128ef
JM		 210}
211
212
213void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
214{
ed496f13 215 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 216 p2p_state_txt(p2p->state), sec, usec);
217 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
218 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
219}
220
221
222void p2p_clear_timeout(struct p2p_data *p2p)
223{
ed496f13 224 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 225 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
226}
227
228
8c00fd00 229void p2p_go_neg_failed(struct p2p_data *p2p, int status)
b22128ef
JM		 230{
231 struct p2p_go_neg_results res;
8c00fd00
JM		 232 struct p2p_device *peer = p2p->go_neg_peer;
233
234 if (!peer)
235 return;
236
0c6eee8b 237 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
9d118320
RR		 238 if (p2p->state != P2P_SEARCH) {
239 /*
240 * Clear timeouts related to GO Negotiation if no new p2p_find
241 * has been started.
242 */
243 p2p_clear_timeout(p2p);
244 p2p_set_state(p2p, P2P_IDLE);
245 }
8c00fd00
JM		 246
247 peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
248 peer->wps_method = WPS_NOT_READY;
249 peer->oob_pw_id = 0;
250 wpabuf_free(peer->go_neg_conf);
251 peer->go_neg_conf = NULL;
b22128ef
JM		 252 p2p->go_neg_peer = NULL;
253
254 os_memset(&res, 0, sizeof(res));
255 res.status = status;
8c00fd00
JM		 256 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
257 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
b22128ef
JM		 258 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
259}
260
261
96beff11 262static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 263{
264 unsigned int r, tu;
265 int freq;
266 struct wpabuf *ies;
267
ed496f13 268 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 269 p2p_state_txt(p2p->state));
270
5661bd0f
JJ		 271 if (p2p->pending_listen_freq) {
272 /* We have a pending p2p_listen request */
273 p2p_dbg(p2p, "p2p_listen command pending already");
274 return;
275 }
276
9ccd9165 277 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 278 if (freq < 0) {
ed496f13 279 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 280 return;
281 }
282
df2508d7
JM		 283 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
284 r = 0;
b22128ef
JM		 285 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
286 p2p->min_disc_int) * 100;
96beff11
JM		 287 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
288 tu = p2p->max_disc_tu;
289 if (!dev_disc && tu < 100)
290 tu = 100; /* Need to wait in non-device discovery use cases */
291 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
292 tu = p2p->cfg->max_listen * 1000 / 1024;
293
294 if (tu == 0) {
ed496f13 295 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 296 p2p_set_timeout(p2p, 0, 0);
297 return;
298 }
b22128ef 299
b22128ef
JM		 300 ies = p2p_build_probe_resp_ies(p2p);
301 if (ies == NULL)
302 return;
303
5661bd0f
JJ		 304 p2p->pending_listen_freq = freq;
305 p2p->pending_listen_sec = 0;
306 p2p->pending_listen_usec = 1024 * tu;
307
b22128ef
JM		 308 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
309 ies) < 0) {
ed496f13 310 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 311 p2p->pending_listen_freq = 0;
312 }
313 wpabuf_free(ies);
314}
315
316
317int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
318{
319 int freq;
320 struct wpabuf *ies;
321
ed496f13 322 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 323
5661bd0f
JJ		 324 if (p2p->pending_listen_freq) {
325 /* We have a pending p2p_listen request */
326 p2p_dbg(p2p, "p2p_listen command pending already");
327 return -1;
328 }
329
9ccd9165 330 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 331 if (freq < 0) {
ed496f13 332 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 333 return -1;
334 }
335
b22128ef
JM		 336 p2p->pending_listen_sec = timeout / 1000;
337 p2p->pending_listen_usec = (timeout % 1000) * 1000;
338
339 if (p2p->p2p_scan_running) {
5b9cecaf 340 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 341 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 342 return 0;
343 }
ed496f13 344 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 345 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
346 return 0;
347 }
348
349 ies = p2p_build_probe_resp_ies(p2p);
350 if (ies == NULL)
351 return -1;
352
5661bd0f
JJ		 353 p2p->pending_listen_freq = freq;
354
b22128ef 355 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 356 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 357 p2p->pending_listen_freq = 0;
358 wpabuf_free(ies);
359 return -1;
360 }
361 wpabuf_free(ies);
362
363 p2p_set_state(p2p, P2P_LISTEN_ONLY);
364
365 return 0;
366}
367
368
369static void p2p_device_clear_reported(struct p2p_data *p2p)
370{
371 struct p2p_device *dev;
44abecbf 372 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b22128ef 373 dev->flags &= ~P2P_DEV_REPORTED;
44abecbf
JM		 374 dev->sd_reqs = 0;
375 }
b22128ef
JM		 376}
377
378
379/**
380 * p2p_get_device - Fetch a peer entry
381 * @p2p: P2P module context from p2p_init()
382 * @addr: P2P Device Address of the peer
383 * Returns: Pointer to the device entry or %NULL if not found
384 */
385struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
386{
387 struct p2p_device *dev;
388 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 389 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 390 return dev;
391 }
392 return NULL;
393}
394
395
396/**
397 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
398 * @p2p: P2P module context from p2p_init()
399 * @addr: P2P Interface Address of the peer
400 * Returns: Pointer to the device entry or %NULL if not found
401 */
402struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
403 const u8 *addr)
404{
405 struct p2p_device *dev;
406 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
407 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
408 return dev;
409 }
410 return NULL;
411}
412
413
414/**
415 * p2p_create_device - Create a peer entry
416 * @p2p: P2P module context from p2p_init()
417 * @addr: P2P Device Address of the peer
418 * Returns: Pointer to the device entry or %NULL on failure
419 *
420 * If there is already an entry for the peer, it will be returned instead of
421 * creating a new one.
422 */
423static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
424 const u8 *addr)
425{
426 struct p2p_device *dev, *oldest = NULL;
427 size_t count = 0;
428
429 dev = p2p_get_device(p2p, addr);
430 if (dev)
431 return dev;
432
433 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
434 count++;
435 if (oldest == NULL ||
acb69cec 436 os_reltime_before(&dev->last_seen, &oldest->last_seen))
b22128ef
JM		 437 oldest = dev;
438 }
439 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 440 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 441 dl_list_del(&oldest->list);
442 p2p_device_free(p2p, oldest);
443 }
444
445 dev = os_zalloc(sizeof(*dev));
446 if (dev == NULL)
447 return NULL;
448 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 449 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 450
451 return dev;
452}
453
454
455static void p2p_copy_client_info(struct p2p_device *dev,
456 struct p2p_client_info *cli)
457{
c5db8e51
KRK		 458 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
459 dev->info.device_name[cli->dev_name_len] = '\0';
460 dev->info.dev_capab = cli->dev_capab;
461 dev->info.config_methods = cli->config_methods;
462 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 463 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
464 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
465 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 466}
467
468
469static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
470 const u8 *go_interface_addr, int freq,
471 const u8 *gi, size_t gi_len)
472{
473 struct p2p_group_info info;
474 size_t c;
475 struct p2p_device *dev;
476
477 if (gi == NULL)
478 return 0;
479
480 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
481 return -1;
482
483 /*
484 * Clear old data for this group; if the devices are still in the
485 * group, the information will be restored in the loop following this.
486 */
487 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 488 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 489 ETH_ALEN) == 0) {
490 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
491 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
492 }
493 }
494
495 for (c = 0; c < info.num_clients; c++) {
496 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 497 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
498 ETH_ALEN) == 0)
499 continue; /* ignore our own entry */
b22128ef
JM		 500 dev = p2p_get_device(p2p, cli->p2p_device_addr);
501 if (dev) {
b22128ef 502 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 503 P2P_DEV_PROBE_REQ_ONLY)) {
504 /*
505 * Update information since we have not
506 * received this directly from the client.
507 */
b22128ef 508 p2p_copy_client_info(dev, cli);
f33bc035
JM		 509 } else {
510 /*
511 * Need to update P2P Client Discoverability
512 * flag since it is valid only in P2P Group
513 * Info attribute.
514 */
515 dev->info.dev_capab &=
516 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
517 dev->info.dev_capab |=
518 cli->dev_capab &
519 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
520 }
b22128ef
JM		 521 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
522 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
523 }
524 } else {
525 dev = p2p_create_device(p2p, cli->p2p_device_addr);
526 if (dev == NULL)
527 continue;
528 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
529 p2p_copy_client_info(dev, cli);
530 dev->oper_freq = freq;
c5db8e51
KRK		 531 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
532 dev->info.p2p_device_addr,
8fd7dc1b
JB		 533 &dev->info, 1);
534 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 535 }
536
537 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
538 ETH_ALEN);
acb69cec 539 os_get_reltime(&dev->last_seen);
b22128ef
JM		 540 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
541 os_memcpy(dev->member_in_go_iface, go_interface_addr,
542 ETH_ALEN);
543 }
544
545 return 0;
546}
547
548
ed496f13
JM		 549static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
550 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 551{
552 os_memcpy(dev->info.device_name, msg->device_name,
553 sizeof(dev->info.device_name));
554
555 if (msg->manufacturer &&
556 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
557 os_memset(dev->info.manufacturer, 0,
558 sizeof(dev->info.manufacturer));
559 os_memcpy(dev->info.manufacturer, msg->manufacturer,
560 msg->manufacturer_len);
561 }
562
563 if (msg->model_name &&
564 msg->model_name_len < sizeof(dev->info.model_name)) {
565 os_memset(dev->info.model_name, 0,
566 sizeof(dev->info.model_name));
567 os_memcpy(dev->info.model_name, msg->model_name,
568 msg->model_name_len);
569 }
570
571 if (msg->model_number &&
572 msg->model_number_len < sizeof(dev->info.model_number)) {
573 os_memset(dev->info.model_number, 0,
574 sizeof(dev->info.model_number));
575 os_memcpy(dev->info.model_number, msg->model_number,
576 msg->model_number_len);
577 }
578
579 if (msg->serial_number &&
580 msg->serial_number_len < sizeof(dev->info.serial_number)) {
581 os_memset(dev->info.serial_number, 0,
582 sizeof(dev->info.serial_number));
583 os_memcpy(dev->info.serial_number, msg->serial_number,
584 msg->serial_number_len);
585 }
586
587 if (msg->pri_dev_type)
588 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
589 sizeof(dev->info.pri_dev_type));
590 else if (msg->wps_pri_dev_type)
591 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
592 sizeof(dev->info.pri_dev_type));
593
594 if (msg->wps_sec_dev_type_list) {
595 os_memcpy(dev->info.wps_sec_dev_type_list,
596 msg->wps_sec_dev_type_list,
597 msg->wps_sec_dev_type_list_len);
598 dev->info.wps_sec_dev_type_list_len =
599 msg->wps_sec_dev_type_list_len;
600 }
601
602 if (msg->capability) {
f33bc035
JM		 603 /*
604 * P2P Client Discoverability bit is reserved in all frames
605 * that use this function, so do not change its value here.
606 */
607 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
608 dev->info.dev_capab |= msg->capability[0] &
609 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 610 dev->info.group_capab = msg->capability[1];
611 }
612
613 if (msg->ext_listen_timing) {
614 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
615 dev->ext_listen_interval =
616 WPA_GET_LE16(msg->ext_listen_timing + 2);
617 }
618
619 if (!probe_req) {
954ee628
JM		 620 u16 new_config_methods;
621 new_config_methods = msg->config_methods ?
b67d0d9e 622 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 623 if (new_config_methods &&
624 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 625 p2p_dbg(p2p, "Update peer " MACSTR
626 " config_methods 0x%x -> 0x%x",
627 MAC2STR(dev->info.p2p_device_addr),
628 dev->info.config_methods,
629 new_config_methods);
954ee628
JM		 630 dev->info.config_methods = new_config_methods;
631 }
b67d0d9e
JM		 632 }
633}
634
635
71a0e395
JM		 636static void p2p_update_peer_vendor_elems(struct p2p_device *dev, const u8 *ies,
637 size_t ies_len)
638{
639 const u8 *pos, *end;
640 u8 id, len;
641
642 wpabuf_free(dev->info.vendor_elems);
643 dev->info.vendor_elems = NULL;
644
645 end = ies + ies_len;
646
647 for (pos = ies; pos + 1 < end; pos += len) {
648 id = *pos++;
649 len = *pos++;
650
651 if (pos + len > end)
652 break;
653
654 if (id != WLAN_EID_VENDOR_SPECIFIC || len < 3)
655 continue;
656
657 if (len >= 4) {
658 u32 type = WPA_GET_BE32(pos);
659
660 if (type == WPA_IE_VENDOR_TYPE ||
661 type == WMM_IE_VENDOR_TYPE ||
662 type == WPS_IE_VENDOR_TYPE ||
663 type == P2P_IE_VENDOR_TYPE ||
664 type == WFD_IE_VENDOR_TYPE)
665 continue;
666 }
667
668 /* Unknown vendor element - make raw IE data available */
669 if (wpabuf_resize(&dev->info.vendor_elems, 2 + len) < 0)
670 break;
671 wpabuf_put_data(dev->info.vendor_elems, pos - 2, 2 + len);
672 }
673}
674
675
4b32f6a5
JT		 676static int p2p_compare_wfd_info(struct p2p_device *dev,
677 const struct p2p_message *msg)
678{
679 if (dev->info.wfd_subelems && msg->wfd_subelems) {
680 if (dev->info.wfd_subelems->used != msg->wfd_subelems->used)
681 return 1;
682
683 return os_memcmp(dev->info.wfd_subelems->buf,
684 msg->wfd_subelems->buf,
685 dev->info.wfd_subelems->used);
686 }
687 if (dev->info.wfd_subelems || msg->wfd_subelems)
688 return 1;
689
690 return 0;
691}
692
693
b22128ef 694/**
c98b83f2 695 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 696 * @p2p: P2P module context from p2p_init()
697 * @addr: Source address of Beacon or Probe Response frame (may be either
698 * P2P Device Address or P2P Interface Address)
699 * @level: Signal level (signal strength of the received frame from the peer)
700 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 701 * @rx_time: Time when the result was received
b22128ef
JM		 702 * @ies: IEs from the Beacon or Probe Response frame
703 * @ies_len: Length of ies buffer in octets
c98b83f2 704 * @scan_res: Whether this was based on scan results
b22128ef
JM		 705 * Returns: 0 on success, -1 on failure
706 *
707 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 708 * to the peer table. This function can also be used with some other frames
709 * like Provision Discovery Request that contains P2P Capability and P2P Device
710 * Info attributes.
b22128ef 711 */
3dfd0484 712int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
acb69cec 713 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 714 size_t ies_len, int scan_res)
b22128ef
JM		 715{
716 struct p2p_device *dev;
717 struct p2p_message msg;
718 const u8 *p2p_dev_addr;
4b32f6a5 719 int wfd_changed;
6f2c0607 720 int i;
acb69cec 721 struct os_reltime time_now;
b22128ef
JM		 722
723 os_memset(&msg, 0, sizeof(msg));
724 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 725 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 726 p2p_parse_free(&msg);
727 return -1;
728 }
729
730 if (msg.p2p_device_addr)
731 p2p_dev_addr = msg.p2p_device_addr;
732 else if (msg.device_id)
733 p2p_dev_addr = msg.device_id;
734 else {
ed496f13 735 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 736 p2p_parse_free(&msg);
737 return -1;
738 }
739
80c9582a
JM		 740 if (!is_zero_ether_addr(p2p->peer_filter) &&
741 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 742 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
743 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 744 p2p_parse_free(&msg);
80c9582a
JM		 745 return 0;
746 }
747
b22128ef
JM		 748 dev = p2p_create_device(p2p, p2p_dev_addr);
749 if (dev == NULL) {
750 p2p_parse_free(&msg);
751 return -1;
752 }
3dfd0484 753
c5f10e80 754 if (rx_time == NULL) {
acb69cec 755 os_get_reltime(&time_now);
c5f10e80
JM		 756 rx_time = &time_now;
757 }
3dfd0484
YD		 758
759 /*
760 * Update the device entry only if the new peer
761 * entry is newer than the one previously stored.
762 */
c5f10e80 763 if (dev->last_seen.sec > 0 &&
acb69cec 764 os_reltime_before(rx_time, &dev->last_seen)) {
ed496f13 765 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
c5f10e80
JM		 766 (unsigned int) rx_time->sec,
767 (unsigned int) rx_time->usec,
768 (unsigned int) dev->last_seen.sec,
769 (unsigned int) dev->last_seen.usec);
f96c1d76 770 p2p_parse_free(&msg);
3dfd0484 771 return -1;
f96c1d76 772 }
3dfd0484 773
acb69cec 774 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
3dfd0484 775
b22128ef
JM		 776 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
777
778 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
779 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
780 if (msg.ssid &&
781 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
782 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
783 != 0)) {
784 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
785 dev->oper_ssid_len = msg.ssid[1];
786 }
787
095b3c40
BG		 788 if (msg.adv_service_instance && msg.adv_service_instance_len) {
789 wpabuf_free(dev->info.p2ps_instance);
790 dev->info.p2ps_instance = wpabuf_alloc_copy(
791 msg.adv_service_instance, msg.adv_service_instance_len);
792 }
793
b22128ef
JM		 794 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
795 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
796 int ds_freq;
797 if (*msg.ds_params == 14)
798 ds_freq = 2484;
799 else
800 ds_freq = 2407 + *msg.ds_params * 5;
801 if (freq != ds_freq) {
ed496f13 802 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 803 freq, ds_freq);
804 freq = ds_freq;
805 }
806 }
807
c98b83f2 808 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 809 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
810 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 811 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
812 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 813 }
c98b83f2
JM		 814 if (scan_res) {
815 dev->listen_freq = freq;
816 if (msg.group_info)
817 dev->oper_freq = freq;
818 }
6402fc43 819 dev->info.level = level;
b22128ef 820
ed496f13 821 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 822
10c5d2a5 823 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 824 wpabuf_free(dev->info.wps_vendor_ext[i]);
825 dev->info.wps_vendor_ext[i] = NULL;
826 }
827
10c5d2a5 828 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 829 if (msg.wps_vendor_ext[i] == NULL)
830 break;
831 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
832 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
833 if (dev->info.wps_vendor_ext[i] == NULL)
834 break;
835 }
836
4b32f6a5
JT		 837 wfd_changed = p2p_compare_wfd_info(dev, &msg);
838
9675ce35
JM		 839 if (msg.wfd_subelems) {
840 wpabuf_free(dev->info.wfd_subelems);
841 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
842 }
843
c98b83f2
JM		 844 if (scan_res) {
845 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
846 msg.group_info, msg.group_info_len);
847 }
b22128ef
JM		 848
849 p2p_parse_free(&msg);
850
71a0e395
JM		 851 p2p_update_peer_vendor_elems(dev, ies, ies_len);
852
095b3c40
BG		 853 if (dev->flags & P2P_DEV_REPORTED && !wfd_changed &&
854 (!msg.adv_service_instance ||
855 (dev->flags & P2P_DEV_P2PS_REPORTED)))
b22128ef
JM		 856 return 0;
857
ed496f13
JM		 858 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
859 freq, (unsigned int) rx_time->sec,
c5f10e80 860 (unsigned int) rx_time->usec);
b22128ef 861 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 862 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 863 return 0;
864 }
8fd7dc1b 865
8b2b2a70
JM		 866 if (dev->info.config_methods == 0 &&
867 (freq == 2412 || freq == 2437 || freq == 2462)) {
868 /*
869 * If we have only seen a Beacon frame from a GO, we do not yet
870 * know what WPS config methods it supports. Since some
871 * applications use config_methods value from P2P-DEVICE-FOUND
872 * events, postpone reporting this peer until we've fully
873 * discovered its capabilities.
874 *
875 * At least for now, do this only if the peer was detected on
876 * one of the social channels since that peer can be easily be
877 * found again and there are no limitations of having to use
878 * passive scan on this channels, so this can be done through
879 * Probe Response frame that includes the config_methods
880 * information.
881 */
ed496f13
JM		 882 p2p_dbg(p2p, "Do not report peer " MACSTR
883 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 884 return 0;
885 }
886
8fd7dc1b
JB		 887 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
888 !(dev->flags & P2P_DEV_REPORTED_ONCE));
889 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef 890
095b3c40
BG		 891 if (msg.adv_service_instance)
892 dev->flags |= P2P_DEV_P2PS_REPORTED;
893
b22128ef
JM		 894 return 0;
895}
896
897
898static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
899{
6f2c0607
JMB		 900 int i;
901
5cfda25e
JJ		 902 if (p2p->go_neg_peer == dev) {
903 /*
904 * If GO Negotiation is in progress, report that it has failed.
905 */
8c00fd00 906 p2p_go_neg_failed(p2p, -1);
5cfda25e 907 }
b22128ef
JM		 908 if (p2p->invite_peer == dev)
909 p2p->invite_peer = NULL;
910 if (p2p->sd_peer == dev)
911 p2p->sd_peer = NULL;
912 if (p2p->pending_client_disc_go == dev)
913 p2p->pending_client_disc_go = NULL;
914
f5fc6032
AC		 915 /* dev_lost() device, but only if it was previously dev_found() */
916 if (dev->flags & P2P_DEV_REPORTED_ONCE)
917 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
918 dev->info.p2p_device_addr);
56eeb8f2 919
10c5d2a5 920 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 921 wpabuf_free(dev->info.wps_vendor_ext[i]);
922 dev->info.wps_vendor_ext[i] = NULL;
923 }
924
9675ce35 925 wpabuf_free(dev->info.wfd_subelems);
71a0e395 926 wpabuf_free(dev->info.vendor_elems);
0e0e1e56 927 wpabuf_free(dev->go_neg_conf);
095b3c40 928 wpabuf_free(dev->info.p2ps_instance);
9675ce35 929
b22128ef
JM		 930 os_free(dev);
931}
932
933
934static int p2p_get_next_prog_freq(struct p2p_data *p2p)
935{
936 struct p2p_channels *c;
937 struct p2p_reg_class *cla;
938 size_t cl, ch;
939 int found = 0;
940 u8 reg_class;
941 u8 channel;
942 int freq;
943
944 c = &p2p->cfg->channels;
945 for (cl = 0; cl < c->reg_classes; cl++) {
946 cla = &c->reg_class[cl];
947 if (cla->reg_class != p2p->last_prog_scan_class)
948 continue;
949 for (ch = 0; ch < cla->channels; ch++) {
950 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
951 found = 1;
952 break;
953 }
954 }
955 if (found)
956 break;
957 }
958
959 if (!found) {
960 /* Start from beginning */
961 reg_class = c->reg_class[0].reg_class;
962 channel = c->reg_class[0].channel[0];
963 } else {
964 /* Pick the next channel */
965 ch++;
966 if (ch == cla->channels) {
967 cl++;
968 if (cl == c->reg_classes)
969 cl = 0;
970 ch = 0;
971 }
972 reg_class = c->reg_class[cl].reg_class;
973 channel = c->reg_class[cl].channel[ch];
974 }
975
9ccd9165 976 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 977 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 978 reg_class, channel, freq);
979 p2p->last_prog_scan_class = reg_class;
980 p2p->last_prog_scan_chan = channel;
981
982 if (freq == 2412 || freq == 2437 || freq == 2462)
983 return 0; /* No need to add social channels */
984 return freq;
985}
986
987
988static void p2p_search(struct p2p_data *p2p)
989{
990 int freq = 0;
991 enum p2p_scan_type type;
360182ed 992 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 993 int res;
b22128ef
JM		 994
995 if (p2p->drv_in_listen) {
ed496f13 996 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 997 return;
998 }
999 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1000
e6ecfc4f
JB		 1001 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
1002 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
b22128ef 1003 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 1004 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 1005 } else {
1006 type = P2P_SCAN_SOCIAL;
ed496f13 1007 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 1008 }
1009
99fcd404
JM		 1010 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
1011 p2p->num_req_dev_types, p2p->req_dev_types,
1012 p2p->find_dev_id, pw_id);
1013 if (res < 0) {
b951a974 1014 p2p_dbg(p2p, "Scan request schedule failed");
b22128ef
JM		 1015 p2p_continue_find(p2p);
1016 }
1017}
1018
1019
1020static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
1021{
1022 struct p2p_data *p2p = eloop_ctx;
ed496f13 1023 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 1024 p2p_stop_find(p2p);
1025}
1026
1027
b951a974
SD		 1028void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status)
1029{
1030 if (status != 0) {
1031 p2p_dbg(p2p, "Scan request failed");
1032 /* Do continue find even for the first p2p_find_scan */
1033 p2p_continue_find(p2p);
1034 } else {
1035 p2p_dbg(p2p, "Running p2p_scan");
1036 p2p->p2p_scan_running = 1;
1037 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1038 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1039 p2p, NULL);
1040 }
1041}
1042
1043
b22128ef
JM		 1044static int p2p_run_after_scan(struct p2p_data *p2p)
1045{
1046 struct p2p_device *dev;
1047 enum p2p_after_scan op;
1048
3f9285ff 1049 if (p2p->after_scan_tx) {
63a965c3 1050 p2p->after_scan_tx_in_progress = 1;
ed496f13 1051 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
46eeedac
JM		 1052 p2p->cfg->send_action(p2p->cfg->cb_ctx,
1053 p2p->after_scan_tx->freq,
1054 p2p->after_scan_tx->dst,
1055 p2p->after_scan_tx->src,
1056 p2p->after_scan_tx->bssid,
1057 (u8 *) (p2p->after_scan_tx + 1),
1058 p2p->after_scan_tx->len,
1059 p2p->after_scan_tx->wait_time);
3f9285ff
JM		 1060 os_free(p2p->after_scan_tx);
1061 p2p->after_scan_tx = NULL;
1062 return 1;
1063 }
1064
b22128ef
JM		 1065 op = p2p->start_after_scan;
1066 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1067 switch (op) {
1068 case P2P_AFTER_SCAN_NOTHING:
1069 break;
1070 case P2P_AFTER_SCAN_LISTEN:
ed496f13 1071 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 1072 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
1073 p2p->pending_listen_usec / 1000);
1074 return 1;
1075 case P2P_AFTER_SCAN_CONNECT:
ed496f13 1076 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 1077 MAC2STR(p2p->after_scan_peer));
1078 dev = p2p_get_device(p2p, p2p->after_scan_peer);
1079 if (dev == NULL) {
ed496f13 1080 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 1081 break;
1082 }
1083 p2p_connect_send(p2p, dev);
1084 return 1;
1085 }
1086
1087 return 0;
1088}
1089
1090
b22128ef
JM		 1091static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1092{
1093 struct p2p_data *p2p = eloop_ctx;
1094 int running;
ed496f13 1095 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 1096 running = p2p->p2p_scan_running;
1097 /* Make sure we recover from missed scan results callback */
1098 p2p->p2p_scan_running = 0;
1099
1100 if (running)
1101 p2p_run_after_scan(p2p);
1102}
1103
1104
046ef4aa
JMB		 1105static void p2p_free_req_dev_types(struct p2p_data *p2p)
1106{
1107 p2p->num_req_dev_types = 0;
1108 os_free(p2p->req_dev_types);
1109 p2p->req_dev_types = NULL;
1110}
1111
1112
51775096
BG		 1113static int p2ps_gen_hash(struct p2p_data *p2p, const char *str, u8 *hash)
1114{
1115 u8 buf[SHA256_MAC_LEN];
1116 char str_buf[256];
1117 const u8 *adv_array;
1118 size_t i, adv_len;
1119
1120 if (!str || !hash)
1121 return 0;
1122
1123 if (!str[0]) {
1124 os_memcpy(hash, p2p->wild_card_hash, P2PS_HASH_LEN);
1125 return 1;
1126 }
1127
1128 adv_array = (u8 *) str_buf;
1129 adv_len = os_strlen(str);
1130
1131 for (i = 0; str[i] && i < adv_len; i++) {
1132 if (str[i] >= 'A' && str[i] <= 'Z')
1133 str_buf[i] = str[i] - 'A' + 'a';
1134 else
1135 str_buf[i] = str[i];
1136 }
1137
1138 if (sha256_vector(1, &adv_array, &adv_len, buf))
1139 return 0;
1140
1141 os_memcpy(hash, buf, P2PS_HASH_LEN);
1142 return 1;
1143}
1144
1145
b22128ef 1146int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 1147 enum p2p_discovery_type type,
6d92fa6e 1148 unsigned int num_req_dev_types, const u8 *req_dev_types,
51775096
BG		 1149 const u8 *dev_id, unsigned int search_delay,
1150 u8 seek_count, const char **seek)
b22128ef
JM		 1151{
1152 int res;
1153
ed496f13 1154 p2p_dbg(p2p, "Starting find (type=%d)", type);
acb69cec 1155 os_get_reltime(&p2p->find_start);
b22128ef 1156 if (p2p->p2p_scan_running) {
ed496f13 1157 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 1158 }
046ef4aa
JMB		 1159
1160 p2p_free_req_dev_types(p2p);
1161 if (req_dev_types && num_req_dev_types) {
1162 p2p->req_dev_types = os_malloc(num_req_dev_types *
1163 WPS_DEV_TYPE_LEN);
1164 if (p2p->req_dev_types == NULL)
1165 return -1;
1166 os_memcpy(p2p->req_dev_types, req_dev_types,
1167 num_req_dev_types * WPS_DEV_TYPE_LEN);
1168 p2p->num_req_dev_types = num_req_dev_types;
1169 }
1170
6d92fa6e
JM		 1171 if (dev_id) {
1172 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1173 p2p->find_dev_id = p2p->find_dev_id_buf;
1174 } else
1175 p2p->find_dev_id = NULL;
1176
51775096
BG		 1177 if (seek_count == 0 || !seek) {
1178 /* Not an ASP search */
1179 p2p->p2ps_seek = 0;
1180 } else if (seek_count == 1 && seek && (!seek[0] || !seek[0][0])) {
1181 /*
1182 * An empty seek string means no hash values, but still an ASP
1183 * search.
1184 */
1185 p2p->p2ps_seek_count = 0;
1186 p2p->p2ps_seek = 1;
1187 } else if (seek && seek_count <= P2P_MAX_QUERY_HASH) {
1188 u8 buf[P2PS_HASH_LEN];
1189 int i;
1190
1191 p2p->p2ps_seek_count = seek_count;
1192 for (i = 0; i < seek_count; i++) {
1193 if (!p2ps_gen_hash(p2p, seek[i], buf))
1194 continue;
1195
1196 /* If asking for wildcard, don't do others */
1197 if (os_memcmp(buf, p2p->wild_card_hash,
1198 P2PS_HASH_LEN) == 0) {
1199 p2p->p2ps_seek_count = 0;
1200 break;
1201 }
1202
1203 os_memcpy(&p2p->query_hash[i * P2PS_HASH_LEN], buf,
1204 P2PS_HASH_LEN);
1205 }
1206 p2p->p2ps_seek = 1;
1207 } else {
1208 p2p->p2ps_seek_count = 0;
1209 p2p->p2ps_seek = 1;
1210 }
1211
1212 /* Special case to perform wildcard search */
1213 if (p2p->p2ps_seek_count == 0 && p2p->p2ps_seek) {
1214 p2p->p2ps_seek_count = 1;
1215 os_memcpy(&p2p->query_hash, p2p->wild_card_hash, P2PS_HASH_LEN);
1216 }
1217
b22128ef
JM		 1218 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1219 p2p_clear_timeout(p2p);
1220 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1221 p2p->find_type = type;
1222 p2p_device_clear_reported(p2p);
1223 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1224 p2p->search_delay = search_delay;
1225 p2p->in_search_delay = 0;
b22128ef 1226 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1227 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1228 if (timeout)
1229 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1230 p2p, NULL);
1231 switch (type) {
1232 case P2P_FIND_START_WITH_FULL:
1233 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1234 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1235 p2p->num_req_dev_types,
360182ed
JM		 1236 p2p->req_dev_types, dev_id,
1237 DEV_PW_DEFAULT);
b22128ef
JM		 1238 break;
1239 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1240 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1241 p2p->num_req_dev_types,
360182ed
JM		 1242 p2p->req_dev_types, dev_id,
1243 DEV_PW_DEFAULT);
b22128ef
JM		 1244 break;
1245 default:
1246 return -1;
1247 }
1248
b951a974 1249 if (res != 0 && p2p->p2p_scan_running) {
1b5d4714
JM		 1250 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1251 /* wait for the previous p2p_scan to complete */
825fb6b2 1252 res = 0; /* do not report failure */
b951a974 1253 } else if (res != 0) {
ed496f13 1254 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1255 p2p_set_state(p2p, P2P_IDLE);
1256 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1257 }
1258
1259 return res;
1260}
1261
1262
0b8889d8 1263void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1264{
ed496f13 1265 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1266 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1267 p2p_clear_timeout(p2p);
1b5d4714 1268 if (p2p->state == P2P_SEARCH)
710ae9ac 1269 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
51775096
BG		 1270
1271 p2p->p2ps_seek_count = 0;
1272
b22128ef 1273 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1274 p2p_free_req_dev_types(p2p);
b22128ef 1275 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1276 if (p2p->go_neg_peer)
fb8984fd 1277 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1278 p2p->go_neg_peer = NULL;
1279 p2p->sd_peer = NULL;
1280 p2p->invite_peer = NULL;
1a9c618d
JM		 1281 p2p_stop_listen_for_freq(p2p, freq);
1282}
1283
1284
1285void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1286{
0b8889d8 1287 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1288 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1289 return;
1290 }
1a9c618d
JM		 1291 if (p2p->in_listen) {
1292 p2p->in_listen = 0;
1293 p2p_clear_timeout(p2p);
1294 }
54b8f994
JM		 1295 if (p2p->drv_in_listen) {
1296 /*
1297 * The driver may not deliver callback to p2p_listen_end()
1298 * when the operation gets canceled, so clear the internal
1299 * variable that is tracking driver state.
1300 */
ed496f13 1301 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1302 p2p->drv_in_listen = 0;
1303 }
b22128ef
JM		 1304 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1305}
1306
1307
0b5fb86a
SADR		 1308void p2p_stop_listen(struct p2p_data *p2p)
1309{
1310 if (p2p->state != P2P_LISTEN_ONLY) {
1311 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1312 return;
1313 }
1314
1315 p2p_stop_listen_for_freq(p2p, 0);
1316 p2p_set_state(p2p, P2P_IDLE);
1317}
1318
1319
0b8889d8
JM		 1320void p2p_stop_find(struct p2p_data *p2p)
1321{
5661bd0f 1322 p2p->pending_listen_freq = 0;
0b8889d8
JM		 1323 p2p_stop_find_for_freq(p2p, 0);
1324}
1325
1326
e28c226d
JM		 1327static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1328 unsigned int force_freq,
51e9f228 1329 unsigned int pref_freq, int go)
e28c226d
JM		 1330{
1331 u8 op_class, op_channel;
1332 unsigned int freq = force_freq ? force_freq : pref_freq;
1333
51e9f228
JM		 1334 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1335 force_freq, pref_freq, go);
9ccd9165 1336 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1337 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1338 return -1;
1339 }
1340
51e9f228
JM		 1341 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1342 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1343 op_channel))) {
ed496f13
JM		 1344 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1345 freq, op_class, op_channel);
e28c226d
JM		 1346 return -1;
1347 }
1348
1349 p2p->op_reg_class = op_class;
1350 p2p->op_channel = op_channel;
1351
1352 if (force_freq) {
1353 p2p->channels.reg_classes = 1;
1354 p2p->channels.reg_class[0].channels = 1;
1355 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1356 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1357 } else {
1358 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1359 sizeof(struct p2p_channels));
1360 }
1361
1362 return 0;
1363}
1364
1365
1366static void p2p_prepare_channel_best(struct p2p_data *p2p)
1367{
1368 u8 op_class, op_channel;
00043740
JM		 1369 const int op_classes_5ghz[] = { 124, 115, 0 };
1370 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
384bdd02 1371 const int op_classes_vht[] = { 128, 0 };
e28c226d 1372
99d7c762
JM		 1373 p2p_dbg(p2p, "Prepare channel best");
1374
e28c226d
JM		 1375 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1376 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1377 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1378 == 0) {
ed496f13 1379 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1380 p2p->op_reg_class = op_class;
1381 p2p->op_channel = op_channel;
1382 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1383 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1384 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1385 == 0) {
ed496f13 1386 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1387 p2p->op_reg_class = op_class;
1388 p2p->op_channel = op_channel;
1389 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1390 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1391 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1392 &op_channel) == 0) {
ed496f13 1393 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1394 p2p->op_reg_class = op_class;
1395 p2p->op_channel = op_channel;
6701fdc3
JM		 1396 } else if (p2p->cfg->num_pref_chan > 0 &&
1397 p2p_channels_includes(&p2p->cfg->channels,
1398 p2p->cfg->pref_chan[0].op_class,
1399 p2p->cfg->pref_chan[0].chan)) {
1400 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1401 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1402 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
384bdd02
JM		 1403 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1404 &p2p->op_reg_class, &p2p->op_channel) ==
1405 0) {
1406 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1407 p2p->op_reg_class, p2p->op_channel);
a30d50b3
JM		 1408 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1409 &p2p->op_reg_class, &p2p->op_channel) ==
1410 0) {
1411 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1412 p2p->op_reg_class, p2p->op_channel);
f2407107
JM		 1413 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1414 &p2p->op_reg_class, &p2p->op_channel) ==
1415 0) {
1416 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1417 p2p->op_reg_class, p2p->op_channel);
94b84bc7
AH		 1418 } else if (p2p_channels_includes(&p2p->cfg->channels,
1419 p2p->cfg->op_reg_class,
1420 p2p->cfg->op_channel)) {
99d7c762 1421 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1422 p2p->op_reg_class = p2p->cfg->op_reg_class;
1423 p2p->op_channel = p2p->cfg->op_channel;
6ace13a9
JM		 1424 } else if (p2p_channel_random_social(&p2p->cfg->channels,
1425 &p2p->op_reg_class,
1426 &p2p->op_channel) == 0) {
1595eb93
AM		 1427 p2p_dbg(p2p, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1428 p2p->op_reg_class, p2p->op_channel);
94b84bc7 1429 } else {
6ace13a9
JM		 1430 /* Select any random available channel from the first available
1431 * operating class */
1432 p2p_channel_select(&p2p->cfg->channels, NULL,
1433 &p2p->op_reg_class,
1434 &p2p->op_channel);
1435 p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
1436 p2p->op_channel, p2p->op_reg_class);
e28c226d
JM		 1437 }
1438
1439 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1440 sizeof(struct p2p_channels));
1441}
1442
1443
a5830ede
JM		 1444/**
1445 * p2p_prepare_channel - Select operating channel for GO Negotiation
1446 * @p2p: P2P module context from p2p_init()
1447 * @dev: Selected peer device
1448 * @force_freq: Forced frequency in MHz or 0 if not forced
1449 * @pref_freq: Preferred frequency in MHz or 0 if no preference
51e9f228 1450 * @go: Whether the local end will be forced to be GO
a5830ede
JM		 1451 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1452 *
1453 * This function is used to do initial operating channel selection for GO
1454 * Negotiation prior to having received peer information. The selected channel
1455 * may be further optimized in p2p_reselect_channel() once the peer information
1456 * is available.
1457 */
79879f4a 1458int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
51e9f228 1459 unsigned int force_freq, unsigned int pref_freq, int go)
b22128ef 1460{
51e9f228
JM		 1461 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1462 force_freq, pref_freq, go);
04a3e69d 1463 if (force_freq || pref_freq) {
51e9f228
JM		 1464 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1465 0)
1e19f734 1466 return -1;
b22128ef 1467 } else {
e28c226d 1468 p2p_prepare_channel_best(p2p);
b22128ef 1469 }
51e9f228
JM		 1470 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1471 if (go)
1472 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1473 else if (!force_freq)
a6306bcc
JM		 1474 p2p_channels_union_inplace(&p2p->channels,
1475 &p2p->cfg->cli_channels);
51e9f228
JM		 1476 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1477
ed496f13 1478 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1479 p2p->op_reg_class, p2p->op_channel,
1480 force_freq ? " (forced)" : "");
1481
92ac756c
JM		 1482 if (force_freq)
1483 dev->flags |= P2P_DEV_FORCE_FREQ;
1484 else
1485 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1486
7861cb08
JM		 1487 return 0;
1488}
1489
1490
acc247b2
JM		 1491static void p2p_set_dev_persistent(struct p2p_device *dev,
1492 int persistent_group)
1493{
1494 switch (persistent_group) {
1495 case 0:
1496 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1497 P2P_DEV_PREFER_PERSISTENT_RECONN);
1498 break;
1499 case 1:
1500 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1501 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1502 break;
1503 case 2:
1504 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1505 P2P_DEV_PREFER_PERSISTENT_RECONN;
1506 break;
1507 }
1508}
1509
1510
7861cb08
JM		 1511int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1512 enum p2p_wps_method wps_method,
1513 int go_intent, const u8 *own_interface_addr,
23c84252 1514 unsigned int force_freq, int persistent_group,
3bc462cb 1515 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1516 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
7861cb08
JM		 1517{
1518 struct p2p_device *dev;
1519
ed496f13 1520 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1521 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442
JM		 1522 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1523 "oob_pw_id=%u",
7861cb08 1524 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1525 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
7861cb08 1526
b22128ef
JM		 1527 dev = p2p_get_device(p2p, peer_addr);
1528 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1529 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1530 MAC2STR(peer_addr));
1531 return -1;
1532 }
1533
51e9f228
JM		 1534 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1535 go_intent == 15) < 0)
92ac756c
JM		 1536 return -1;
1537
b22128ef 1538 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1539 if (!(dev->info.dev_capab &
1540 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1541 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1542 " that is in a group and is not discoverable",
1543 MAC2STR(peer_addr));
1544 return -1;
1545 }
1546 if (dev->oper_freq <= 0) {
ed496f13 1547 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1548 " with incomplete information",
1549 MAC2STR(peer_addr));
1550 return -1;
1551 }
1552
1553 /*
1554 * First, try to connect directly. If the peer does not
1555 * acknowledge frames, assume it is sleeping and use device
1556 * discoverability via the GO at that point.
1557 */
1558 }
1559
23c84252
JM		 1560 p2p->ssid_set = 0;
1561 if (force_ssid) {
1562 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1563 force_ssid, force_ssid_len);
1564 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1565 p2p->ssid_len = force_ssid_len;
1566 p2p->ssid_set = 1;
1567 }
1568
b22128ef
JM		 1569 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1570 dev->flags &= ~P2P_DEV_USER_REJECTED;
1571 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1572 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1573 if (pd_before_go_neg)
1574 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1575 else {
3bc462cb 1576 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1577 /*
003c4580
JM		 1578 * Assign dialog token and tie breaker here to use the same
1579 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1580 */
1581 dev->dialog_token++;
1582 if (dev->dialog_token == 0)
1583 dev->dialog_token = 1;
003c4580
JM		 1584 dev->tie_breaker = p2p->next_tie_breaker;
1585 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1586 }
9dac8c3e 1587 dev->connect_reqs = 0;
b22128ef
JM		 1588 dev->go_neg_req_sent = 0;
1589 dev->go_state = UNKNOWN_GO;
acc247b2 1590 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1591 p2p->go_intent = go_intent;
1592 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1593
1594 if (p2p->state != P2P_IDLE)
1595 p2p_stop_find(p2p);
1596
f44ae207
JM		 1597 if (p2p->after_scan_tx) {
1598 /*
1599 * We need to drop the pending frame to avoid issues with the
1600 * new GO Negotiation, e.g., when the pending frame was from a
1601 * previous attempt at starting a GO Negotiation.
1602 */
ed496f13 1603 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
f44ae207
JM		 1604 os_free(p2p->after_scan_tx);
1605 p2p->after_scan_tx = NULL;
1606 }
1607
b22128ef 1608 dev->wps_method = wps_method;
ab9e3442 1609 dev->oob_pw_id = oob_pw_id;
b22128ef 1610 dev->status = P2P_SC_SUCCESS;
d5b20a73 1611
b22128ef 1612 if (p2p->p2p_scan_running) {
ed496f13 1613 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1614 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1615 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1616 return 0;
1617 }
1618 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1619
1620 return p2p_connect_send(p2p, dev);
1621}
1622
1623
1624int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1625 enum p2p_wps_method wps_method,
1626 int go_intent, const u8 *own_interface_addr,
23c84252 1627 unsigned int force_freq, int persistent_group,
04a3e69d 1628 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1629 unsigned int pref_freq, u16 oob_pw_id)
b22128ef
JM		 1630{
1631 struct p2p_device *dev;
1632
ed496f13 1633 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef 1634 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442 1635 " wps_method=%d persistent_group=%d oob_pw_id=%u",
b22128ef 1636 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1637 wps_method, persistent_group, oob_pw_id);
b22128ef 1638
b22128ef
JM		 1639 dev = p2p_get_device(p2p, peer_addr);
1640 if (dev == NULL) {
ed496f13 1641 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1642 MAC2STR(peer_addr));
1643 return -1;
1644 }
1645
51e9f228
JM		 1646 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1647 15) < 0)
92ac756c
JM		 1648 return -1;
1649
23c84252
JM		 1650 p2p->ssid_set = 0;
1651 if (force_ssid) {
1652 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1653 force_ssid, force_ssid_len);
1654 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1655 p2p->ssid_len = force_ssid_len;
1656 p2p->ssid_set = 1;
1657 }
1658
b22128ef
JM		 1659 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1660 dev->flags &= ~P2P_DEV_USER_REJECTED;
1661 dev->go_neg_req_sent = 0;
1662 dev->go_state = UNKNOWN_GO;
acc247b2 1663 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1664 p2p->go_intent = go_intent;
1665 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1666
1667 dev->wps_method = wps_method;
ab9e3442 1668 dev->oob_pw_id = oob_pw_id;
b22128ef
JM		 1669 dev->status = P2P_SC_SUCCESS;
1670
1671 return 0;
1672}
1673
1674
1675void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1676 struct p2p_device *dev, struct p2p_message *msg)
1677{
acb69cec 1678 os_get_reltime(&dev->last_seen);
b22128ef 1679
ed496f13 1680 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1681
b22128ef
JM		 1682 if (msg->listen_channel) {
1683 int freq;
9ccd9165 1684 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1685 msg->listen_channel[4]);
1686 if (freq < 0) {
ed496f13 1687 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1688 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1689 msg->listen_channel[0],
1690 msg->listen_channel[1],
1691 msg->listen_channel[2],
1692 msg->listen_channel[3],
1693 msg->listen_channel[4]);
1694 } else {
ed496f13
JM		 1695 p2p_dbg(p2p, "Update peer " MACSTR
1696 " Listen channel: %u -> %u MHz",
c5db8e51 1697 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1698 dev->listen_freq, freq);
1699 dev->listen_freq = freq;
1700 }
1701 }
b22128ef 1702
9675ce35
JM		 1703 if (msg->wfd_subelems) {
1704 wpabuf_free(dev->info.wfd_subelems);
1705 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1706 }
1707
b22128ef
JM		 1708 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1709 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1710 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1711 } else {
ed496f13 1712 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1713 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1714 "listen_freq=%d",
c5db8e51
KRK		 1715 MAC2STR(dev->info.p2p_device_addr),
1716 dev->info.dev_capab, dev->info.group_capab,
1717 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1718 }
1719
1720 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1721
1722 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1723 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1724 return;
1725 }
1726
8fd7dc1b
JB		 1727 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1728 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1729 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1730}
1731
1732
1733void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1734{
1735 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1736 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1737 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1738 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1739 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1740}
1741
1742
1743int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1744{
59fec34d
KV		 1745 if (p2p->ssid_set) {
1746 os_memcpy(params->ssid, p2p->ssid, p2p->ssid_len);
1747 params->ssid_len = p2p->ssid_len;
1748 } else {
1749 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1750 }
1751 p2p->ssid_set = 0;
1752
1b928f96 1753 p2p_random(params->passphrase, p2p->cfg->passphrase_len);
b22128ef
JM		 1754 return 0;
1755}
1756
1757
1758void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1759{
1760 struct p2p_go_neg_results res;
1761 int go = peer->go_state == LOCAL_GO;
1762 struct p2p_channels intersection;
b22128ef 1763
ed496f13
JM		 1764 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1765 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1766
1767 os_memset(&res, 0, sizeof(res));
1768 res.role_go = go;
c5db8e51 1769 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1770 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1771 res.wps_method = peer->wps_method;
acc247b2
JM		 1772 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1773 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1774 res.persistent_group = 2;
1775 else
1776 res.persistent_group = 1;
1777 }
b22128ef
JM		 1778
1779 if (go) {
1780 /* Setup AP mode for WPS provisioning */
9ccd9165 1781 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1782 p2p->op_channel);
1783 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1784 res.ssid_len = p2p->ssid_len;
1b928f96 1785 p2p_random(res.passphrase, p2p->cfg->passphrase_len);
e9a7ae41 1786 } else {
b22128ef 1787 res.freq = peer->oper_freq;
e9a7ae41
JM		 1788 if (p2p->ssid_len) {
1789 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1790 res.ssid_len = p2p->ssid_len;
1791 }
1792 }
b22128ef 1793
556b30da
JM		 1794 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1795 p2p_channels_dump(p2p, "peer channels", &peer->channels);
b22128ef
JM		 1796 p2p_channels_intersect(&p2p->channels, &peer->channels,
1797 &intersection);
556b30da
JM		 1798 if (go) {
1799 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1800 p2p_channels_dump(p2p, "intersection after no-GO removal",
1801 &intersection);
1802 }
1170239e
IP		 1803
1804 p2p_channels_to_freqs(&intersection, res.freq_list,
1805 P2P_MAX_CHANNELS);
b22128ef 1806
ae3e3421
JM		 1807 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1808
b22128ef 1809 p2p_clear_timeout(p2p);
4458d915 1810 p2p->ssid_set = 0;
b22128ef
JM		 1811 peer->go_neg_req_sent = 0;
1812 peer->wps_method = WPS_NOT_READY;
ab9e3442 1813 peer->oob_pw_id = 0;
0e0e1e56
NS		 1814 wpabuf_free(peer->go_neg_conf);
1815 peer->go_neg_conf = NULL;
b22128ef
JM		 1816
1817 p2p_set_state(p2p, P2P_PROVISIONING);
1818 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1819}
1820
1821
1822static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1823 const u8 *data, size_t len, int rx_freq)
1824{
ed496f13 1825 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1826 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1827
1828 if (len < 1)
1829 return;
1830
1831 switch (data[0]) {
1832 case P2P_GO_NEG_REQ:
1833 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1834 break;
1835 case P2P_GO_NEG_RESP:
1836 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1837 break;
1838 case P2P_GO_NEG_CONF:
1839 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1840 break;
1841 case P2P_INVITATION_REQ:
1842 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1843 rx_freq);
1844 break;
1845 case P2P_INVITATION_RESP:
1846 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1847 break;
1848 case P2P_PROV_DISC_REQ:
1849 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1850 break;
1851 case P2P_PROV_DISC_RESP:
1852 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1853 break;
1854 case P2P_DEV_DISC_REQ:
1855 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1856 break;
1857 case P2P_DEV_DISC_RESP:
1858 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1859 break;
1860 default:
ed496f13 1861 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1862 data[0]);
1863 break;
1864 }
1865}
1866
1867
19df9b07
JM		 1868static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1869 const u8 *sa, const u8 *bssid, const u8 *data,
1870 size_t len, int freq)
b22128ef
JM		 1871{
1872 if (len < 1)
1873 return;
1874
1875 switch (data[0]) {
1876 case WLAN_PA_VENDOR_SPECIFIC:
1877 data++;
1878 len--;
8bc4372f 1879 if (len < 4)
b22128ef 1880 return;
8bc4372f 1881 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef
JM		 1882 return;
1883
8bc4372f
RJ		 1884 data += 4;
1885 len -= 4;
b22128ef 1886
8bc4372f 1887 p2p_rx_p2p_action(p2p, sa, data, len, freq);
b22128ef
JM		 1888 break;
1889 case WLAN_PA_GAS_INITIAL_REQ:
1890 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1891 break;
1892 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1893 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1894 break;
1895 case WLAN_PA_GAS_COMEBACK_REQ:
1896 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1897 break;
1898 case WLAN_PA_GAS_COMEBACK_RESP:
1899 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1900 break;
1901 }
1902}
1903
1904
1905void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1906 const u8 *bssid, u8 category,
1907 const u8 *data, size_t len, int freq)
1908{
1909 if (category == WLAN_ACTION_PUBLIC) {
1910 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1911 return;
1912 }
1913
1914 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1915 return;
1916
1917 if (len < 4)
1918 return;
1919
8bc4372f 1920 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef 1921 return;
8bc4372f
RJ		 1922 data += 4;
1923 len -= 4;
b22128ef
JM		 1924
1925 /* P2P action frame */
ed496f13 1926 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1927 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1928
1929 if (len < 1)
1930 return;
1931 switch (data[0]) {
1932 case P2P_NOA:
ed496f13 1933 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1934 /* TODO */
1935 break;
1936 case P2P_PRESENCE_REQ:
1937 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1938 break;
1939 case P2P_PRESENCE_RESP:
1940 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1941 break;
1942 case P2P_GO_DISC_REQ:
1943 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1944 break;
1945 default:
ed496f13 1946 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1947 break;
1948 }
1949}
1950
1951
1952static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1953{
1954 struct p2p_data *p2p = eloop_ctx;
1955 if (p2p->go_neg_peer == NULL)
1956 return;
7549c178
JM		 1957 if (p2p->pending_listen_freq) {
1958 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_go_neg_start");
1959 p2p->pending_listen_freq = 0;
1960 }
b22128ef
JM		 1961 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1962 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
e49cabcf
JM		 1963 /*
1964 * Set new timeout to make sure a previously set one does not expire
1965 * too quickly while waiting for the GO Negotiation to complete.
1966 */
1967 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 1968 p2p_connect_send(p2p, p2p->go_neg_peer);
1969}
1970
1971
1972static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1973{
1974 struct p2p_data *p2p = eloop_ctx;
1975 if (p2p->invite_peer == NULL)
1976 return;
7549c178
JM		 1977 if (p2p->pending_listen_freq) {
1978 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_invite_start");
1979 p2p->pending_listen_freq = 0;
1980 }
b22128ef 1981 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
8e9f53c3
JM		 1982 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
1983 p2p->invite_dev_pw_id);
b22128ef
JM		 1984}
1985
1986
1987static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1988 const u8 *ie, size_t ie_len)
1989{
1990 struct p2p_message msg;
1991 struct p2p_device *dev;
1992
1993 os_memset(&msg, 0, sizeof(msg));
1994 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1995 {
1996 p2p_parse_free(&msg);
1997 return; /* not a P2P probe */
1998 }
1999
2000 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
2001 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
2002 != 0) {
2003 /* The Probe Request is not part of P2P Device Discovery. It is
2004 * not known whether the source address of the frame is the P2P
2005 * Device Address or P2P Interface Address. Do not add a new
2006 * peer entry based on this frames.
2007 */
2008 p2p_parse_free(&msg);
2009 return;
2010 }
2011
2012 dev = p2p_get_device(p2p, addr);
2013 if (dev) {
2014 if (dev->country[0] == 0 && msg.listen_channel)
2015 os_memcpy(dev->country, msg.listen_channel, 3);
acb69cec 2016 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2017 p2p_parse_free(&msg);
2018 return; /* already known */
2019 }
2020
2021 dev = p2p_create_device(p2p, addr);
2022 if (dev == NULL) {
2023 p2p_parse_free(&msg);
2024 return;
2025 }
2026
acb69cec 2027 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2028 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
2029
b22128ef
JM		 2030 if (msg.listen_channel) {
2031 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 2032 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 2033 msg.listen_channel[4]);
2034 }
2035
ed496f13 2036 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 2037
9675ce35
JM		 2038 if (msg.wfd_subelems) {
2039 wpabuf_free(dev->info.wfd_subelems);
2040 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
2041 }
2042
b22128ef
JM		 2043 p2p_parse_free(&msg);
2044
ed496f13 2045 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 2046 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 2047 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
2048 dev->info.group_capab, dev->info.device_name,
2049 dev->listen_freq);
b22128ef
JM		 2050}
2051
2052
2053struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
2054 const u8 *addr,
2055 struct p2p_message *msg)
2056{
2057 struct p2p_device *dev;
2058
2059 dev = p2p_get_device(p2p, addr);
2060 if (dev) {
acb69cec 2061 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2062 return dev; /* already known */
2063 }
2064
2065 dev = p2p_create_device(p2p, addr);
2066 if (dev == NULL)
2067 return NULL;
2068
2069 p2p_add_dev_info(p2p, addr, dev, msg);
2070
2071 return dev;
2072}
2073
2074
2075static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
2076{
2077 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
2078 return 1;
2079 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
2080 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
2081 WPA_GET_BE16(&req_dev_type[6]) == 0)
2082 return 1; /* Category match with wildcard OUI/sub-category */
2083 return 0;
2084}
2085
2086
2087int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
2088 size_t num_req_dev_type)
2089{
2090 size_t i;
2091 for (i = 0; i < num_req_dev_type; i++) {
2092 if (dev_type_match(dev_type, req_dev_type[i]))
2093 return 1;
2094 }
2095 return 0;
2096}
2097
2098
2099/**
2100 * p2p_match_dev_type - Match local device type with requested type
2101 * @p2p: P2P module context from p2p_init()
2102 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2103 * Returns: 1 on match, 0 on mismatch
2104 *
2105 * This function can be used to match the Requested Device Type attribute in
2106 * WPS IE with the local device types for deciding whether to reply to a Probe
2107 * Request frame.
2108 */
2109int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
2110{
2111 struct wps_parse_attr attr;
2112 size_t i;
2113
2114 if (wps_parse_msg(wps, &attr))
2115 return 1; /* assume no Requested Device Type attributes */
2116
2117 if (attr.num_req_dev_type == 0)
2118 return 1; /* no Requested Device Type attributes -> match */
2119
2120 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
2121 attr.num_req_dev_type))
2122 return 1; /* Own Primary Device Type matches */
2123
e635efb4 2124 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++) {
b22128ef
JM		 2125 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
2126 attr.req_dev_type,
2127 attr.num_req_dev_type))
e635efb4
JM		 2128 return 1; /* Own Secondary Device Type matches */
2129 }
b22128ef
JM		 2130
2131 /* No matching device type found */
2132 return 0;
2133}
2134
2135
2136struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
2137{
2138 struct wpabuf *buf;
2139 u8 *len;
360182ed 2140 int pw_id = -1;
9675ce35 2141 size_t extra = 0;
b22128ef 2142
9675ce35
JM		 2143#ifdef CONFIG_WIFI_DISPLAY
2144 if (p2p->wfd_ie_probe_resp)
2145 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
2146#endif /* CONFIG_WIFI_DISPLAY */
2147
86bd36f0
JM		 2148 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2149 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2150
4660e732
BG		 2151 if (p2p->query_count)
2152 extra += MAX_SVC_ADV_IE_LEN;
2153
9675ce35 2154 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 2155 if (buf == NULL)
2156 return NULL;
2157
360182ed
JM		 2158 if (p2p->go_neg_peer) {
2159 /* Advertise immediate availability of WPS credential */
2160 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
2161 }
2162
33183761
JM		 2163 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
2164 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
2165 wpabuf_free(buf);
2166 return NULL;
2167 }
b22128ef 2168
9675ce35
JM		 2169#ifdef CONFIG_WIFI_DISPLAY
2170 if (p2p->wfd_ie_probe_resp)
2171 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
2172#endif /* CONFIG_WIFI_DISPLAY */
2173
86bd36f0
JM		 2174 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2175 wpabuf_put_buf(buf,
2176 p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2177
b22128ef
JM		 2178 /* P2P IE */
2179 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 2180 p2p_buf_add_capability(buf, p2p->dev_capab &
2181 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 2182 if (p2p->ext_listen_interval)
2183 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
2184 p2p->ext_listen_interval);
2185 p2p_buf_add_device_info(buf, p2p, NULL);
2186 p2p_buf_update_ie_hdr(buf, len);
2187
4660e732
BG		 2188 if (p2p->query_count) {
2189 p2p_buf_add_service_instance(buf, p2p, p2p->query_count,
2190 p2p->query_hash,
2191 p2p->p2ps_adv_list);
2192 }
2193
b22128ef
JM		 2194 return buf;
2195}
2196
2197
9e7321ee
KV		 2198static int p2p_service_find_asp(struct p2p_data *p2p, const u8 *hash)
2199{
2200 struct p2ps_advertisement *adv_data;
2201
2202 p2p_dbg(p2p, "ASP find - ASP list: %p", p2p->p2ps_adv_list);
2203
2204 /* Wildcard always matches if we have actual services */
2205 if (os_memcmp(hash, p2p->wild_card_hash, P2PS_HASH_LEN) == 0)
2206 return p2p->p2ps_adv_list != NULL;
2207
2208 adv_data = p2p->p2ps_adv_list;
2209 while (adv_data) {
2210 p2p_dbg(p2p, "ASP hash: %x =? %x", hash[0], adv_data->hash[0]);
2211 if (os_memcmp(hash, adv_data->hash, P2PS_HASH_LEN) == 0)
2212 return 1;
2213 adv_data = adv_data->next;
2214 }
2215
2216 return 0;
2217}
2218
2219
2d43d37f
JB		 2220static enum p2p_probe_req_status
2221p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2222 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef
JM		 2223{
2224 struct ieee802_11_elems elems;
2225 struct wpabuf *buf;
2226 struct ieee80211_mgmt *resp;
97c5b3c4 2227 struct p2p_message msg;
b22128ef
JM		 2228 struct wpabuf *ies;
2229
b22128ef
JM		 2230 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
2231 ParseFailed) {
2232 /* Ignore invalid Probe Request frames */
a5527a49 2233 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
2d43d37f 2234 return P2P_PREQ_MALFORMED;
b22128ef
JM		 2235 }
2236
2237 if (elems.p2p == NULL) {
2238 /* not a P2P probe - ignore it */
a5527a49 2239 p2p_dbg(p2p, "Not a P2P probe - ignore it");
2d43d37f 2240 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 2241 }
2242
04a85e44
JM		 2243 if (dst && !is_broadcast_ether_addr(dst) &&
2244 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2245 /* Not sent to the broadcast address or our P2P Device Address
2246 */
a5527a49
JM		 2247 p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
2248 MAC2STR(dst));
2d43d37f 2249 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2250 }
2251
2252 if (bssid && !is_broadcast_ether_addr(bssid)) {
2253 /* Not sent to the Wildcard BSSID */
a5527a49
JM		 2254 p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
2255 MAC2STR(bssid));
2d43d37f 2256 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2257 }
2258
b22128ef
JM		 2259 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2260 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2261 0) {
2262 /* not using P2P Wildcard SSID - ignore */
a5527a49 2263 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
2d43d37f 2264 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2265 }
2266
e1d52629
JM		 2267 if (supp_rates_11b_only(&elems)) {
2268 /* Indicates support for 11b rates only */
a5527a49 2269 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
2d43d37f 2270 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2271 }
2272
97c5b3c4
JM		 2273 os_memset(&msg, 0, sizeof(msg));
2274 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2275 /* Could not parse P2P attributes */
a5527a49 2276 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
2d43d37f 2277 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2278 }
2279
9e7321ee
KV		 2280 p2p->p2ps_svc_found = 0;
2281
2282 if (msg.service_hash && msg.service_hash_count) {
2283 const u8 *hash = msg.service_hash;
2284 u8 *dest = p2p->query_hash;
2285 u8 i;
2286
2287 p2p->query_count = 0;
2288 for (i = 0; i < msg.service_hash_count; i++) {
2289 if (p2p_service_find_asp(p2p, hash)) {
2290 p2p->p2ps_svc_found = 1;
2291
2292 if (!os_memcmp(hash, p2p->wild_card_hash,
2293 P2PS_HASH_LEN)) {
2294 /* We found match(es) but wildcard
2295 * will return all */
2296 p2p->query_count = 1;
2297 os_memcpy(p2p->query_hash, hash,
2298 P2PS_HASH_LEN);
2299 break;
2300 }
2301
2302 /* Save each matching hash */
2303 if (p2p->query_count < P2P_MAX_QUERY_HASH) {
2304 os_memcpy(dest, hash, P2PS_HASH_LEN);
2305 dest += P2PS_HASH_LEN;
2306 p2p->query_count++;
2307 } else {
2308 /* We found match(es) but too many to
2309 * return all */
2310 p2p->query_count = 0;
2311 break;
2312 }
2313 }
2314 hash += P2PS_HASH_LEN;
2315 }
2316
2317 p2p_dbg(p2p, "ASP adv found: %d", p2p->p2ps_svc_found);
2318
2319 /* Probed hash unknown */
2320 if (!p2p->p2ps_svc_found) {
2321 p2p_parse_free(&msg);
2322 return P2P_PREQ_NOT_PROCESSED;
2323 }
2324 } else {
2325 /* This is not a P2PS Probe Request */
2326 p2p->query_count = 0;
2327 p2p_dbg(p2p, "No P2PS Hash in Probe Request");
2328
2329 if (!p2p->in_listen || !p2p->drv_in_listen) {
2330 /* not in Listen state - ignore Probe Request */
2331 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2332 p2p->in_listen, p2p->drv_in_listen);
2333 p2p_parse_free(&msg);
2334 return P2P_PREQ_NOT_LISTEN;
2335 }
2336 }
2337
97c5b3c4 2338 if (msg.device_id &&
1c7447d0 2339 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4 2340 /* Device ID did not match */
a5527a49
JM		 2341 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
2342 MAC2STR(msg.device_id));
97c5b3c4 2343 p2p_parse_free(&msg);
2d43d37f 2344 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2345 }
2346
b22128ef 2347 /* Check Requested Device Type match */
97c5b3c4
JM		 2348 if (msg.wps_attributes &&
2349 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2350 /* No match with Requested Device Type */
a5527a49 2351 p2p_dbg(p2p, "Probe Req requestred Device Type did not match - ignore it");
97c5b3c4 2352 p2p_parse_free(&msg);
2d43d37f 2353 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2354 }
97c5b3c4 2355 p2p_parse_free(&msg);
b22128ef 2356
2d43d37f
JB		 2357 if (!p2p->cfg->send_probe_resp) {
2358 /* Response generated elsewhere */
a5527a49 2359 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
2d43d37f
JB		 2360 return P2P_PREQ_NOT_PROCESSED;
2361 }
b22128ef 2362
ed496f13 2363 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2364
2365 /*
2366 * We do not really have a specific BSS that this frame is advertising,
2367 * so build a frame that has some information in valid format. This is
2368 * really only used for discovery purposes, not to learn exact BSS
2369 * parameters.
2370 */
2371 ies = p2p_build_probe_resp_ies(p2p);
2372 if (ies == NULL)
2d43d37f 2373 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2374
2375 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2376 if (buf == NULL) {
2377 wpabuf_free(ies);
2d43d37f 2378 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2379 }
2380
2381 resp = NULL;
2382 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2383
2384 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2385 (WLAN_FC_STYPE_PROBE_RESP << 4));
2386 os_memcpy(resp->da, addr, ETH_ALEN);
2387 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2388 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2389 resp->u.probe_resp.beacon_int = host_to_le16(100);
2390 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2391 resp->u.probe_resp.capab_info =
2392 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2393 WLAN_CAPABILITY_PRIVACY |
2394 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2395
2396 wpabuf_put_u8(buf, WLAN_EID_SSID);
2397 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2398 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2399
2400 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2401 wpabuf_put_u8(buf, 8);
2402 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2403 wpabuf_put_u8(buf, 90 / 5);
2404 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2405 wpabuf_put_u8(buf, 180 / 5);
2406 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2407 wpabuf_put_u8(buf, 360 / 5);
2408 wpabuf_put_u8(buf, 480 / 5);
2409 wpabuf_put_u8(buf, 540 / 5);
2410
2411 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2412 wpabuf_put_u8(buf, 1);
2413 wpabuf_put_u8(buf, p2p->cfg->channel);
2414
2415 wpabuf_put_buf(buf, ies);
2416 wpabuf_free(ies);
2417
2418 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2419
2420 wpabuf_free(buf);
2d43d37f
JB		 2421
2422 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2423}
2424
2425
2d43d37f
JB		 2426enum p2p_probe_req_status
2427p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2428 const u8 *bssid, const u8 *ie, size_t ie_len)
b22128ef 2429{
2d43d37f
JB		 2430 enum p2p_probe_req_status res;
2431
b22128ef
JM		 2432 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2433
2d43d37f 2434 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
4660e732 2435 p2p->query_count = 0;
b22128ef
JM		 2436
2437 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2438 p2p->go_neg_peer &&
c5db8e51 2439 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2440 == 0 &&
2441 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2442 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2443 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2444 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2445 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2d43d37f 2446 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2447 }
2448
2449 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2450 p2p->invite_peer &&
a05e236b 2451 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
c5db8e51
KRK		 2452 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2453 == 0) {
b22128ef 2454 /* Received a Probe Request from Invite peer */
ed496f13 2455 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
aef5047a 2456 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
b22128ef 2457 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2d43d37f 2458 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2459 }
2460
2d43d37f 2461 return res;
b22128ef
JM		 2462}
2463
2464
2465static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2466 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2467{
2468 struct wpabuf *tmp;
2469 u8 *lpos;
2470 size_t tmplen;
2471 int res;
72044390 2472 u8 group_capab;
b22128ef 2473
4c08c0bd
JM		 2474 if (p2p_ie == NULL)
2475 return 0; /* WLAN AP is not a P2P manager */
b22128ef
JM		 2476
2477 /*
2478 * (Re)Association Request - P2P IE
2479 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2480 * P2P Interface attribute (present if concurrent device and
2481 * P2P Management is enabled)
b22128ef
JM		 2482 */
2483 tmp = wpabuf_alloc(200);
2484 if (tmp == NULL)
2485 return -1;
2486
2487 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2488 group_capab = 0;
2489 if (p2p->num_groups > 0) {
2490 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2491 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2492 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2493 p2p->cross_connect)
2494 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2495 }
2496 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2497 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2498 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2499 p2p_buf_add_p2p_interface(tmp, p2p);
2500 p2p_buf_update_ie_hdr(tmp, lpos);
2501
2502 tmplen = wpabuf_len(tmp);
2503 if (tmplen > len)
2504 res = -1;
2505 else {
2506 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2507 res = tmplen;
2508 }
2509 wpabuf_free(tmp);
2510
2511 return res;
2512}
2513
2514
2515int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2516 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2517{
2518 struct wpabuf *tmp;
2519 u8 *lpos;
2520 struct p2p_device *peer;
2521 size_t tmplen;
2522 int res;
9675ce35 2523 size_t extra = 0;
b22128ef
JM		 2524
2525 if (!p2p_group)
4c08c0bd 2526 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2527
9675ce35
JM		 2528#ifdef CONFIG_WIFI_DISPLAY
2529 if (p2p->wfd_ie_assoc_req)
2530 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2531#endif /* CONFIG_WIFI_DISPLAY */
2532
86bd36f0
JM		 2533 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2534 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2535
b22128ef
JM		 2536 /*
2537 * (Re)Association Request - P2P IE
2538 * P2P Capability attribute (shall be present)
2539 * Extended Listen Timing (may be present)
2540 * P2P Device Info attribute (shall be present)
2541 */
9675ce35 2542 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2543 if (tmp == NULL)
2544 return -1;
2545
9675ce35
JM		 2546#ifdef CONFIG_WIFI_DISPLAY
2547 if (p2p->wfd_ie_assoc_req)
2548 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2549#endif /* CONFIG_WIFI_DISPLAY */
2550
86bd36f0
JM		 2551 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2552 wpabuf_put_buf(tmp,
2553 p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2554
b22128ef
JM		 2555 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2556
2557 lpos = p2p_buf_add_ie_hdr(tmp);
2558 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2559 if (p2p->ext_listen_interval)
2560 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2561 p2p->ext_listen_interval);
b22128ef
JM		 2562 p2p_buf_add_device_info(tmp, p2p, peer);
2563 p2p_buf_update_ie_hdr(tmp, lpos);
2564
2565 tmplen = wpabuf_len(tmp);
2566 if (tmplen > len)
2567 res = -1;
2568 else {
2569 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2570 res = tmplen;
2571 }
2572 wpabuf_free(tmp);
2573
2574 return res;
2575}
2576
2577
2578int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2579{
2580 struct wpabuf *p2p_ie;
2581 int ret;
2582
2583 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2584 if (p2p_ie == NULL)
2585 return 0;
2586
2587 ret = p2p_attr_text(p2p_ie, buf, end);
2588 wpabuf_free(p2p_ie);
2589 return ret;
2590}
2591
2592
ae9d45f3
KV		 2593struct p2ps_advertisement *
2594p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id)
2595{
2596 struct p2ps_advertisement *adv_data;
2597
2598 if (!p2p)
2599 return NULL;
2600
2601 adv_data = p2p->p2ps_adv_list;
2602 while (adv_data) {
2603 if (adv_data->id == adv_id)
2604 return adv_data;
2605 adv_data = adv_data->next;
2606 }
2607
2608 return NULL;
2609}
2610
2611
2612int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id)
2613{
2614 struct p2ps_advertisement *adv_data;
2615 struct p2ps_advertisement **prior;
2616
2617 if (!p2p)
2618 return -1;
2619
2620 adv_data = p2p->p2ps_adv_list;
2621 prior = &p2p->p2ps_adv_list;
2622 while (adv_data) {
2623 if (adv_data->id == adv_id) {
2624 p2p_dbg(p2p, "Delete ASP adv_id=0x%x", adv_id);
2625 *prior = adv_data->next;
2626 os_free(adv_data);
2627 return 0;
2628 }
2629 prior = &adv_data->next;
2630 adv_data = adv_data->next;
2631 }
2632
2633 return -1;
2634}
2635
2636
2637int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id,
2638 const char *adv_str, u8 svc_state, u16 config_methods,
2639 const char *svc_info)
2640{
2641 struct p2ps_advertisement *adv_data, *tmp, **prev;
2642 u8 buf[P2PS_HASH_LEN];
2643 size_t adv_data_len, adv_len, info_len = 0;
2644
2645 if (!p2p || !adv_str || !adv_str[0])
2646 return -1;
2647
2648 if (!(config_methods & p2p->cfg->config_methods)) {
2649 p2p_dbg(p2p, "Config methods not supported svc: 0x%x dev: 0x%x",
2650 config_methods, p2p->cfg->config_methods);
2651 return -1;
2652 }
2653
2654 if (!p2ps_gen_hash(p2p, adv_str, buf))
2655 return -1;
2656
2657 if (svc_info)
2658 info_len = os_strlen(svc_info);
2659 adv_len = os_strlen(adv_str);
2660 adv_data_len = sizeof(struct p2ps_advertisement) + adv_len + 1 +
2661 info_len + 1;
2662
2663 adv_data = os_zalloc(adv_data_len);
2664 if (!adv_data)
2665 return -1;
2666
2667 os_memcpy(adv_data->hash, buf, P2PS_HASH_LEN);
2668 adv_data->id = adv_id;
2669 adv_data->state = svc_state;
2670 adv_data->config_methods = config_methods & p2p->cfg->config_methods;
2671 adv_data->auto_accept = (u8) auto_accept;
2672 os_memcpy(adv_data->svc_name, adv_str, adv_len);
2673
2674 if (svc_info && info_len) {
2675 adv_data->svc_info = &adv_data->svc_name[adv_len + 1];
2676 os_memcpy(adv_data->svc_info, svc_info, info_len);
2677 }
2678
2679 /*
2680 * Group Advertisements by service string. They do not need to be
2681 * sorted, but groups allow easier Probe Response instance grouping
2682 */
2683 tmp = p2p->p2ps_adv_list;
2684 prev = &p2p->p2ps_adv_list;
2685 while (tmp) {
2686 if (tmp->id == adv_data->id) {
2687 if (os_strcmp(tmp->svc_name, adv_data->svc_name) != 0) {
2688 os_free(adv_data);
2689 return -1;
2690 }
2691 adv_data->next = tmp->next;
2692 *prev = adv_data;
2693 os_free(tmp);
2694 goto inserted;
2695 } else {
2696 if (os_strcmp(tmp->svc_name, adv_data->svc_name) == 0) {
2697 adv_data->next = tmp->next;
2698 tmp->next = adv_data;
2699 goto inserted;
2700 }
2701 }
2702 prev = &tmp->next;
2703 tmp = tmp->next;
2704 }
2705
2706 /* No svc_name match found */
2707 adv_data->next = p2p->p2ps_adv_list;
2708 p2p->p2ps_adv_list = adv_data;
2709
2710inserted:
2711 p2p_dbg(p2p,
2712 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s'",
2713 adv_id, adv_data->config_methods, svc_state, adv_str);
2714
2715 return 0;
2716}
2717
2718
c2d76aa6 2719int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2720{
0a70f34f
JM		 2721 struct p2p_message msg;
2722
0a70f34f 2723 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2724 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2725 return -1;
0a70f34f 2726
526ec4ae
JM		 2727 if (msg.p2p_device_addr) {
2728 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2729 return 0;
526ec4ae
JM		 2730 } else if (msg.device_id) {
2731 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2732 return 0;
0a70f34f 2733 }
c2d76aa6
MH		 2734 return -1;
2735}
0a70f34f 2736
c2d76aa6
MH		 2737
2738int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2739{
2740 struct wpabuf *p2p_ie;
2741 int ret;
2742
2743 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2744 P2P_IE_VENDOR_TYPE);
2745 if (p2p_ie == NULL)
2746 return -1;
2747 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2748 wpabuf_free(p2p_ie);
526ec4ae 2749 return ret;
0a70f34f
JM		 2750}
2751
2752
b22128ef
JM		 2753static void p2p_clear_go_neg(struct p2p_data *p2p)
2754{
2755 p2p->go_neg_peer = NULL;
2756 p2p_clear_timeout(p2p);
2757 p2p_set_state(p2p, P2P_IDLE);
2758}
2759
2760
2761void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2762{
2763 if (p2p->go_neg_peer == NULL) {
ed496f13 2764 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2765 return; /* No pending Group Formation */
2766 }
2767
2768 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2769 0) {
ed496f13
JM		 2770 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2771 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2772 MAC2STR(mac_addr),
2773 MAC2STR(p2p->go_neg_peer->intended_addr));
2774 return; /* Ignore unexpected peer address */
2775 }
2776
ed496f13 2777 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2778 MAC2STR(mac_addr));
2779
2780 p2p_clear_go_neg(p2p);
2781}
2782
2783
2784void p2p_group_formation_failed(struct p2p_data *p2p)
2785{
2786 if (p2p->go_neg_peer == NULL) {
ed496f13 2787 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2788 return; /* No pending Group Formation */
2789 }
2790
ed496f13 2791 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2792 MAC2STR(p2p->go_neg_peer->intended_addr));
2793
2794 p2p_clear_go_neg(p2p);
2795}
2796
2797
2798struct p2p_data * p2p_init(const struct p2p_config *cfg)
2799{
2800 struct p2p_data *p2p;
2801
1b928f96
JM		 2802 if (cfg->max_peers < 1 ||
2803 cfg->passphrase_len < 8 || cfg->passphrase_len > 63)
b22128ef
JM		 2804 return NULL;
2805
2806 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2807 if (p2p == NULL)
2808 return NULL;
2809 p2p->cfg = (struct p2p_config *) (p2p + 1);
2810 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2811 if (cfg->dev_name)
2812 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2813 if (cfg->manufacturer)
2814 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2815 if (cfg->model_name)
2816 p2p->cfg->model_name = os_strdup(cfg->model_name);
2817 if (cfg->model_number)
2818 p2p->cfg->model_number = os_strdup(cfg->model_number);
2819 if (cfg->serial_number)
2820 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2821 if (cfg->pref_chan) {
2822 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2823 sizeof(struct p2p_channel));
2824 if (p2p->cfg->pref_chan) {
2825 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2826 cfg->num_pref_chan *
2827 sizeof(struct p2p_channel));
2828 } else
2829 p2p->cfg->num_pref_chan = 0;
2830 }
b22128ef 2831
51775096
BG		 2832 p2ps_gen_hash(p2p, P2PS_WILD_HASH_STR, p2p->wild_card_hash);
2833
b22128ef
JM		 2834 p2p->min_disc_int = 1;
2835 p2p->max_disc_int = 3;
96beff11 2836 p2p->max_disc_tu = -1;
b22128ef 2837
df2508d7
JM		 2838 if (os_get_random(&p2p->next_tie_breaker, 1) < 0)
2839 p2p->next_tie_breaker = 0;
b22128ef
JM		 2840 p2p->next_tie_breaker &= 0x01;
2841 if (cfg->sd_request)
2842 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2843 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2844 if (cfg->concurrent_operations)
2845 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2846 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2847
2848 dl_list_init(&p2p->devices);
2849
2850 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2851 p2p_expiration_timeout, p2p, NULL);
2852
4f219667
JM		 2853 p2p->go_timeout = 100;
2854 p2p->client_timeout = 20;
f667e031 2855 p2p->num_p2p_sd_queries = 0;
4f219667 2856
51e9f228
JM		 2857 p2p_dbg(p2p, "initialized");
2858 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2859 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2860
b22128ef
JM		 2861 return p2p;
2862}
2863
2864
2865void p2p_deinit(struct p2p_data *p2p)
2866{
ae9d45f3
KV		 2867 struct p2ps_advertisement *adv, *prev;
2868
9675ce35
JM		 2869#ifdef CONFIG_WIFI_DISPLAY
2870 wpabuf_free(p2p->wfd_ie_beacon);
2871 wpabuf_free(p2p->wfd_ie_probe_req);
2872 wpabuf_free(p2p->wfd_ie_probe_resp);
2873 wpabuf_free(p2p->wfd_ie_assoc_req);
2874 wpabuf_free(p2p->wfd_ie_invitation);
2875 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2876 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2877 wpabuf_free(p2p->wfd_ie_go_neg);
2878 wpabuf_free(p2p->wfd_dev_info);
2879 wpabuf_free(p2p->wfd_assoc_bssid);
2880 wpabuf_free(p2p->wfd_coupled_sink_info);
2881#endif /* CONFIG_WIFI_DISPLAY */
2882
b22128ef
JM		 2883 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2884 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2885 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2886 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
0c6eee8b 2887 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
b22128ef 2888 p2p_flush(p2p);
046ef4aa 2889 p2p_free_req_dev_types(p2p);
b22128ef 2890 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2891 os_free(p2p->cfg->manufacturer);
2892 os_free(p2p->cfg->model_name);
2893 os_free(p2p->cfg->model_number);
2894 os_free(p2p->cfg->serial_number);
21d996f7 2895 os_free(p2p->cfg->pref_chan);
b22128ef 2896 os_free(p2p->groups);
369678ad 2897 os_free(p2p->p2ps_prov);
18708aad 2898 wpabuf_free(p2p->sd_resp);
3f9285ff 2899 os_free(p2p->after_scan_tx);
f95cac27 2900 p2p_remove_wps_vendor_extensions(p2p);
556b30da 2901 os_free(p2p->no_go_freq.range);
ae9d45f3
KV		 2902
2903 adv = p2p->p2ps_adv_list;
2904 while (adv) {
2905 prev = adv;
2906 adv = adv->next;
2907 os_free(prev);
2908 }
2909
b22128ef
JM		 2910 os_free(p2p);
2911}
2912
2913
2914void p2p_flush(struct p2p_data *p2p)
2915{
2916 struct p2p_device *dev, *prev;
78db55b8 2917 p2p_stop_find(p2p);
b22128ef
JM		 2918 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2919 list) {
2920 dl_list_del(&dev->list);
2921 p2p_device_free(p2p, dev);
2922 }
2923 p2p_free_sd_queries(p2p);
f44ae207
JM		 2924 os_free(p2p->after_scan_tx);
2925 p2p->after_scan_tx = NULL;
b22128ef
JM		 2926}
2927
2928
9d562b79
SS		 2929int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2930{
2931 struct p2p_device *dev;
2932
2933 dev = p2p_get_device(p2p, addr);
2934 if (dev == NULL)
2935 return -1;
2936
ed496f13 2937 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79 2938
0c6eee8b
RR		 2939 if (p2p->go_neg_peer == dev) {
2940 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
9d562b79 2941 p2p->go_neg_peer = NULL;
0c6eee8b 2942 }
9d562b79
SS		 2943
2944 dev->wps_method = WPS_NOT_READY;
ab9e3442 2945 dev->oob_pw_id = 0;
9d562b79
SS		 2946 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2947 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2948
2949 /* Check if after_scan_tx is for this peer. If so free it */
2950 if (p2p->after_scan_tx &&
2951 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2952 os_free(p2p->after_scan_tx);
2953 p2p->after_scan_tx = NULL;
2954 }
2955
2956 return 0;
2957}
2958
2959
b22128ef
JM		 2960int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2961{
2962 os_free(p2p->cfg->dev_name);
2963 if (dev_name) {
2964 p2p->cfg->dev_name = os_strdup(dev_name);
2965 if (p2p->cfg->dev_name == NULL)
2966 return -1;
2967 } else
2968 p2p->cfg->dev_name = NULL;
2969 return 0;
2970}
2971
2972
b6e01800
JM		 2973int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2974{
2975 os_free(p2p->cfg->manufacturer);
2976 p2p->cfg->manufacturer = NULL;
2977 if (manufacturer) {
2978 p2p->cfg->manufacturer = os_strdup(manufacturer);
2979 if (p2p->cfg->manufacturer == NULL)
2980 return -1;
2981 }
2982
2983 return 0;
2984}
2985
2986
2987int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2988{
2989 os_free(p2p->cfg->model_name);
2990 p2p->cfg->model_name = NULL;
2991 if (model_name) {
2992 p2p->cfg->model_name = os_strdup(model_name);
2993 if (p2p->cfg->model_name == NULL)
2994 return -1;
2995 }
2996
2997 return 0;
2998}
2999
3000
3001int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
3002{
3003 os_free(p2p->cfg->model_number);
3004 p2p->cfg->model_number = NULL;
3005 if (model_number) {
3006 p2p->cfg->model_number = os_strdup(model_number);
3007 if (p2p->cfg->model_number == NULL)
3008 return -1;
3009 }
3010
3011 return 0;
3012}
3013
3014
3015int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
3016{
3017 os_free(p2p->cfg->serial_number);
3018 p2p->cfg->serial_number = NULL;
3019 if (serial_number) {
3020 p2p->cfg->serial_number = os_strdup(serial_number);
3021 if (p2p->cfg->serial_number == NULL)
3022 return -1;
3023 }
3024
3025 return 0;
3026}
3027
3028
3029void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
3030{
3031 p2p->cfg->config_methods = config_methods;
3032}
3033
3034
3035void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
3036{
3037 os_memcpy(p2p->cfg->uuid, uuid, 16);
3038}
3039
3040
b22128ef
JM		 3041int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
3042{
3043 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
3044 return 0;
3045}
3046
3047
3048int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
3049 size_t num_dev_types)
3050{
3051 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
3052 num_dev_types = P2P_SEC_DEVICE_TYPES;
3053 p2p->cfg->num_sec_dev_types = num_dev_types;
3054 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
3055 return 0;
3056}
3057
3058
f95cac27
JMB		 3059void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
3060{
3061 int i;
3062
10c5d2a5 3063 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 3064 wpabuf_free(p2p->wps_vendor_ext[i]);
3065 p2p->wps_vendor_ext[i] = NULL;
3066 }
3067}
3068
3069
3070int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
3071 const struct wpabuf *vendor_ext)
3072{
3073 int i;
3074
3075 if (vendor_ext == NULL)
3076 return -1;
3077
10c5d2a5 3078 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 3079 if (p2p->wps_vendor_ext[i] == NULL)
3080 break;
3081 }
10c5d2a5 3082 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 3083 return -1;
3084
3085 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
3086 if (p2p->wps_vendor_ext[i] == NULL)
3087 return -1;
3088
3089 return 0;
3090}
3091
3092
b22128ef
JM		 3093int p2p_set_country(struct p2p_data *p2p, const char *country)
3094{
3095 os_memcpy(p2p->cfg->country, country, 3);
3096 return 0;
3097}
3098
3099
e706b8c8
JM		 3100static int p2p_pre_find_operation(struct p2p_data *p2p, struct p2p_device *dev)
3101{
3102 if (dev->sd_pending_bcast_queries == 0) {
3103 /* Initialize with total number of registered broadcast
3104 * SD queries. */
3105 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
3106 }
3107
3108 if (p2p_start_sd(p2p, dev) == 0)
3109 return 1;
3110
3111 if (dev->req_config_methods &&
3112 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
3113 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
3114 MACSTR " (config methods 0x%x)",
3115 MAC2STR(dev->info.p2p_device_addr),
3116 dev->req_config_methods);
3117 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
3118 return 1;
3119 }
3120
3121 return 0;
3122}
3123
3124
b22128ef
JM		 3125void p2p_continue_find(struct p2p_data *p2p)
3126{
3127 struct p2p_device *dev;
e706b8c8
JM		 3128 int found;
3129
b22128ef 3130 p2p_set_state(p2p, P2P_SEARCH);
e706b8c8
JM		 3131
3132 /* Continue from the device following the last iteration */
3133 found = 0;
b22128ef 3134 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
e706b8c8
JM		 3135 if (dev == p2p->last_p2p_find_oper) {
3136 found = 1;
3137 continue;
3138 }
3139 if (!found)
3140 continue;
3141 if (p2p_pre_find_operation(p2p, dev) > 0) {
3142 p2p->last_p2p_find_oper = dev;
3143 return;
f667e031 3144 }
e706b8c8 3145 }
f667e031 3146
e706b8c8
JM		 3147 /*
3148 * Wrap around to the beginning of the list and continue until the last
3149 * iteration device.
3150 */
3151 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3152 if (p2p_pre_find_operation(p2p, dev) > 0) {
3153 p2p->last_p2p_find_oper = dev;
f667e031 3154 return;
b22128ef 3155 }
e706b8c8
JM		 3156 if (dev == p2p->last_p2p_find_oper)
3157 break;
b22128ef
JM		 3158 }
3159
96beff11 3160 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 3161}
3162
3163
3164static void p2p_sd_cb(struct p2p_data *p2p, int success)
3165{
ed496f13 3166 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 3167 success);
3168 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3169
3170 if (!success) {
4db20751
JM		 3171 if (p2p->sd_peer)
3172 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
f667e031 3173 p2p->sd_peer = NULL;
b22128ef
JM		 3174 p2p_continue_find(p2p);
3175 return;
3176 }
3177
3178 if (p2p->sd_peer == NULL) {
ed496f13 3179 p2p_dbg(p2p, "No SD peer entry known");
b22128ef
JM		 3180 p2p_continue_find(p2p);
3181 return;
3182 }
3183
bff162ac 3184 if (p2p->sd_query && p2p->sd_query->for_all_peers) {
7139cf4a
CM		 3185 /* Update the pending broadcast SD query count for this device
3186 */
3187 p2p->sd_peer->sd_pending_bcast_queries--;
3188
3189 /*
3190 * If there are no pending broadcast queries for this device,
3191 * mark it as done (-1).
3192 */
3193 if (p2p->sd_peer->sd_pending_bcast_queries == 0)
3194 p2p->sd_peer->sd_pending_bcast_queries = -1;
3195 }
3196
b22128ef
JM		 3197 /* Wait for response from the peer */
3198 p2p_set_state(p2p, P2P_SD_DURING_FIND);
3199 p2p_set_timeout(p2p, 0, 200000);
3200}
3201
6b56cc2d
JS		 3202
3203/**
3204 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3205 * @p2p: P2P module context from p2p_init()
3206 */
19df9b07 3207static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 3208{
3209 struct p2p_device *dev;
3210
3211 if (p2p->state != P2P_IDLE)
3212 return;
3213
3214 /*
3215 * Retry the prov disc req attempt only for the peer that the user had
175171ac 3216 * requested.
6b56cc2d
JS		 3217 */
3218
3219 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3220 if (os_memcmp(p2p->pending_pd_devaddr,
3221 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3222 continue;
3223 if (!dev->req_config_methods)
3224 continue;
6b56cc2d 3225
ed496f13 3226 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 3227 MACSTR " (config methods 0x%x)",
3228 MAC2STR(dev->info.p2p_device_addr),
3229 dev->req_config_methods);
175171ac 3230 p2p_send_prov_disc_req(p2p, dev,
8d82c210
JM		 3231 dev->flags & P2P_DEV_PD_FOR_JOIN,
3232 p2p->pd_force_freq);
6b56cc2d
JS		 3233 return;
3234 }
3235}
3236
3237
b22128ef
JM		 3238static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
3239{
ed496f13 3240 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 3241 success);
6b56cc2d
JS		 3242
3243 /*
3244 * Postpone resetting the pending action state till after we actually
3245 * time out. This allows us to take some action like notifying any
3246 * interested parties about no response to the request.
3247 *
3248 * When the timer (below) goes off we check in IDLE, SEARCH, or
3249 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3250 * requests in, if this was still pending and then raise notification.
3251 */
b22128ef
JM		 3252
3253 if (!success) {
6b56cc2d
JS		 3254 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3255
488f4a71
JM		 3256 if (p2p->user_initiated_pd &&
3257 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
3258 {
3259 /* Retry request from timeout to avoid busy loops */
3260 p2p->pending_action_state = P2P_PENDING_PD;
3261 p2p_set_timeout(p2p, 0, 50000);
3262 } else if (p2p->state != P2P_IDLE)
b22128ef 3263 p2p_continue_find(p2p);
6b56cc2d
JS		 3264 else if (p2p->user_initiated_pd) {
3265 p2p->pending_action_state = P2P_PENDING_PD;
3266 p2p_set_timeout(p2p, 0, 300000);
3267 }
b22128ef
JM		 3268 return;
3269 }
3270
6b56cc2d
JS		 3271 /*
3272 * This postponing, of resetting pending_action_state, needs to be
3273 * done only for user initiated PD requests and not internal ones.
3274 */
3275 if (p2p->user_initiated_pd)
3276 p2p->pending_action_state = P2P_PENDING_PD;
3277 else
3278 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3279
b22128ef
JM		 3280 /* Wait for response from the peer */
3281 if (p2p->state == P2P_SEARCH)
3282 p2p_set_state(p2p, P2P_PD_DURING_FIND);
3283 p2p_set_timeout(p2p, 0, 200000);
3284}
3285
3286
3287int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
acb69cec 3288 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 3289 size_t ies_len)
b22128ef 3290{
acb69cec 3291 if (os_reltime_before(rx_time, &p2p->find_start)) {
a5b5e830
JM		 3292 /*
3293 * The driver may have cached (e.g., in cfg80211 BSS table) the
3294 * scan results for relatively long time. To avoid reporting
3295 * stale information, update P2P peers only based on results
3296 * that have based on frames received after the last p2p_find
3297 * operation was started.
3298 */
ed496f13
JM		 3299 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
3300 " (rx_time=%u.%06u)",
a5b5e830
JM		 3301 MAC2STR(bssid), (unsigned int) rx_time->sec,
3302 (unsigned int) rx_time->usec);
3303 return 0;
3304 }
3305
c5f10e80 3306 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 3307
b22128ef
JM		 3308 return 0;
3309}
3310
3311
3312void p2p_scan_res_handled(struct p2p_data *p2p)
3313{
3314 if (!p2p->p2p_scan_running) {
ed496f13 3315 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 3316 }
3317 p2p->p2p_scan_running = 0;
3318 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
3319
3320 if (p2p_run_after_scan(p2p))
3321 return;
3322 if (p2p->state == P2P_SEARCH)
3323 p2p_continue_find(p2p);
3324}
3325
3326
6d92fa6e 3327void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
b22128ef 3328{
1a94b0ad 3329 u8 dev_capab;
9675ce35
JM		 3330 u8 *len;
3331
3332#ifdef CONFIG_WIFI_DISPLAY
3333 if (p2p->wfd_ie_probe_req)
3334 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
3335#endif /* CONFIG_WIFI_DISPLAY */
3336
86bd36f0
JM		 3337 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3338 wpabuf_put_buf(ies,
3339 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3340
9675ce35 3341 len = p2p_buf_add_ie_hdr(ies);
1a94b0ad
BG		 3342
3343 dev_capab = p2p->dev_capab & ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3344
3345 /* P2PS requires Probe Request frames to include SD bit */
3346 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3347 dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
3348
3349 p2p_buf_add_capability(ies, dev_capab, 0);
3350
6d92fa6e
JM		 3351 if (dev_id)
3352 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 3353 if (p2p->cfg->reg_class && p2p->cfg->channel)
3354 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
3355 p2p->cfg->reg_class,
3356 p2p->cfg->channel);
3357 if (p2p->ext_listen_interval)
3358 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
3359 p2p->ext_listen_interval);
1a94b0ad
BG		 3360
3361 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3362 p2p_buf_add_service_hash(ies, p2p);
3363
b22128ef
JM		 3364 /* TODO: p2p_buf_add_operating_channel() if GO */
3365 p2p_buf_update_ie_hdr(ies, len);
3366}
3367
3368
206e1f42
JM		 3369size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
3370{
9675ce35
JM		 3371 size_t len = 100;
3372
3373#ifdef CONFIG_WIFI_DISPLAY
3374 if (p2p && p2p->wfd_ie_probe_req)
3375 len += wpabuf_len(p2p->wfd_ie_probe_req);
3376#endif /* CONFIG_WIFI_DISPLAY */
3377
86bd36f0
JM		 3378 if (p2p && p2p->vendor_elem &&
3379 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3380 len += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3381
9675ce35 3382 return len;
206e1f42
JM		 3383}
3384
3385
b22128ef
JM		 3386int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
3387{
3388 return p2p_attr_text(p2p_ie, buf, end);
3389}
3390
3391
3392static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
3393{
3394 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 3395 int timeout;
b22128ef 3396
ed496f13 3397 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 3398
3399 if (dev == NULL) {
ed496f13 3400 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 3401 return;
3402 }
3403
3404 if (success) {
b22128ef
JM		 3405 if (dev->flags & P2P_DEV_USER_REJECTED) {
3406 p2p_set_state(p2p, P2P_IDLE);
3407 return;
3408 }
a1d2ab32
NKG		 3409 } else if (dev->go_neg_req_sent) {
3410 /* Cancel the increment from p2p_connect_send() on failure */
3411 dev->go_neg_req_sent--;
b22128ef
JM		 3412 }
3413
3414 if (!success &&
c5db8e51 3415 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 3416 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 3417 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 3418 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 3419 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3420 p2p_send_dev_disc_req(p2p, dev);
3421 return;
3422 }
3423
3424 /*
3425 * Use P2P find, if needed, to find the other device from its listen
3426 * channel.
3427 */
3428 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 3429 timeout = success ? 500000 : 100000;
3430 if (!success && p2p->go_neg_peer &&
3431 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
3432 unsigned int r;
3433 /*
3434 * Peer is expected to wait our response and we will skip the
3435 * listen phase. Add some randomness to the wait time here to
3436 * make it less likely to hit cases where we could end up in
3437 * sync with peer not listening.
3438 */
df2508d7
JM		 3439 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3440 r = 0;
fb8984fd
JM		 3441 timeout += r % 100000;
3442 }
3443 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 3444}
3445
3446
3447static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
3448{
ed496f13 3449 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 3450 success);
3451 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 3452 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 3453 return;
3454 }
3455 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 3456 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3457}
3458
3459
7800d45c
JM		 3460static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
3461 const u8 *addr)
b22128ef 3462{
ed496f13 3463 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272 3464 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
8c00fd00 3465 p2p_go_neg_failed(p2p, p2p->go_neg_peer->status);
7800d45c
JM		 3466 } else if (success) {
3467 struct p2p_device *dev;
3468 dev = p2p_get_device(p2p, addr);
3469 if (dev &&
3470 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
3471 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 3472 }
b22128ef
JM		 3473}
3474
3475
93b7ddd0
JM		 3476static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
3477 enum p2p_send_action_result result)
b22128ef
JM		 3478{
3479 struct p2p_device *dev;
3480
ed496f13 3481 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
93b7ddd0 3482 if (result == P2P_SEND_ACTION_FAILED) {
0e0e1e56 3483 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
8c00fd00 3484 p2p_go_neg_failed(p2p, -1);
93b7ddd0
JM		 3485 return;
3486 }
0e0e1e56
NS		 3487
3488 dev = p2p->go_neg_peer;
3489
93b7ddd0 3490 if (result == P2P_SEND_ACTION_NO_ACK) {
0e0e1e56
NS		 3491 /*
3492 * Retry GO Negotiation Confirmation
3493 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3494 * ACK for confirmation.
3495 */
3496 if (dev && dev->go_neg_conf &&
3497 dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
3498 p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
3499 dev->go_neg_conf_sent);
3500 p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
3501 if (p2p_send_action(p2p, dev->go_neg_conf_freq,
3502 dev->info.p2p_device_addr,
3503 p2p->cfg->dev_addr,
3504 dev->info.p2p_device_addr,
3505 wpabuf_head(dev->go_neg_conf),
3506 wpabuf_len(dev->go_neg_conf), 0) >=
3507 0) {
3508 dev->go_neg_conf_sent++;
3509 return;
3510 }
3511 p2p_dbg(p2p, "Failed to re-send Action frame");
3512
3513 /*
3514 * Continue with the assumption that the first attempt
3515 * went through and just the ACK frame was lost.
3516 */
3517 }
3518
b22128ef
JM		 3519 /*
3520 * It looks like the TX status for GO Negotiation Confirm is
3521 * often showing failure even when the peer has actually
3522 * received the frame. Since the peer may change channels
3523 * immediately after having received the frame, we may not see
3524 * an Ack for retries, so just dropping a single frame may
3525 * trigger this. To allow the group formation to succeed if the
3526 * peer did indeed receive the frame, continue regardless of
3527 * the TX status.
3528 */
ed496f13 3529 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 3530 }
3531
0e0e1e56
NS		 3532 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3533
b22128ef
JM		 3534 if (dev == NULL)
3535 return;
3536
3537 p2p_go_complete(p2p, dev);
3538}
3539
3540
3541void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 3542 const u8 *src, const u8 *bssid,
3543 enum p2p_send_action_result result)
b22128ef
JM		 3544{
3545 enum p2p_pending_action_state state;
93b7ddd0 3546 int success;
b22128ef 3547
ed496f13 3548 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
c5e154c0 3549 " src=" MACSTR " bssid=" MACSTR " result=%d p2p_state=%s)",
b22128ef 3550 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
c5e154c0 3551 MAC2STR(bssid), result, p2p_state_txt(p2p->state));
93b7ddd0 3552 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 3553 state = p2p->pending_action_state;
3554 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3555 switch (state) {
3556 case P2P_NO_PENDING_ACTION:
c5c2d942
JM		 3557 if (p2p->send_action_in_progress) {
3558 p2p->send_action_in_progress = 0;
3559 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3560 }
63a965c3
JM		 3561 if (p2p->after_scan_tx_in_progress) {
3562 p2p->after_scan_tx_in_progress = 0;
3563 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
3564 p2p_run_after_scan(p2p))
3565 break;
3566 if (p2p->state == P2P_SEARCH) {
ed496f13 3567 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
63a965c3
JM		 3568 p2p_continue_find(p2p);
3569 }
3570 }
b22128ef
JM		 3571 break;
3572 case P2P_PENDING_GO_NEG_REQUEST:
3573 p2p_go_neg_req_cb(p2p, success);
3574 break;
3575 case P2P_PENDING_GO_NEG_RESPONSE:
3576 p2p_go_neg_resp_cb(p2p, success);
3577 break;
3578 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 3579 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 3580 break;
3581 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 3582 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 3583 break;
3584 case P2P_PENDING_SD:
3585 p2p_sd_cb(p2p, success);
3586 break;
3587 case P2P_PENDING_PD:
3588 p2p_prov_disc_cb(p2p, success);
3589 break;
3590 case P2P_PENDING_INVITATION_REQUEST:
3591 p2p_invitation_req_cb(p2p, success);
3592 break;
3593 case P2P_PENDING_INVITATION_RESPONSE:
3594 p2p_invitation_resp_cb(p2p, success);
3595 break;
3596 case P2P_PENDING_DEV_DISC_REQUEST:
3597 p2p_dev_disc_req_cb(p2p, success);
3598 break;
3599 case P2P_PENDING_DEV_DISC_RESPONSE:
3600 p2p_dev_disc_resp_cb(p2p, success);
3601 break;
3602 case P2P_PENDING_GO_DISC_REQ:
3603 p2p_go_disc_req_cb(p2p, success);
3604 break;
3605 }
63a965c3
JM		 3606
3607 p2p->after_scan_tx_in_progress = 0;
b22128ef
JM		 3608}
3609
3610
3611void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3612 unsigned int duration)
3613{
3614 if (freq == p2p->pending_client_disc_freq) {
ed496f13 3615 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 3616 p2p->pending_client_disc_freq = 0;
3617 return;
3618 }
3619
3620 if (freq != p2p->pending_listen_freq) {
ed496f13 3621 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3622 freq, duration, p2p->pending_listen_freq);
3623 return;
3624 }
3625
ed496f13 3626 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3627 p2p->pending_listen_sec, p2p->pending_listen_usec,
3628 p2p->pending_listen_freq);
3629 p2p->in_listen = 1;
0b8889d8 3630 p2p->drv_in_listen = freq;
b22128ef
JM		 3631 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3632 /*
3633 * Add 20 msec extra wait to avoid race condition with driver
3634 * remain-on-channel end event, i.e., give driver more time to
3635 * complete the operation before our timeout expires.
3636 */
3637 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3638 p2p->pending_listen_usec + 20000);
3639 }
3640
3641 p2p->pending_listen_freq = 0;
3642}
3643
3644
3645int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3646{
ed496f13 3647 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3648 p2p->drv_in_listen = 0;
3649 if (p2p->in_listen)
3650 return 0; /* Internal timeout will trigger the next step */
3651
3652 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3653 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3654 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
8c00fd00 3655 p2p_go_neg_failed(p2p, -1);
e24cf97c
JM		 3656 return 0;
3657 }
3658
b22128ef
JM		 3659 p2p_set_state(p2p, P2P_CONNECT);
3660 p2p_connect_send(p2p, p2p->go_neg_peer);
3661 return 1;
3662 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3663 if (p2p->p2p_scan_running) {
3664 /*
3665 * Search is already in progress. This can happen if
3666 * an Action frame RX is reported immediately after
3667 * the end of a remain-on-channel operation and the
3668 * response frame to that is sent using an offchannel
3669 * operation while in p2p_find. Avoid an attempt to
3670 * restart a scan here.
3671 */
ed496f13 3672 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3673 return 1;
3674 }
3fe8b68d
JM		 3675 if (p2p->pending_listen_freq) {
3676 /*
3677 * Better wait a bit if the driver is unable to start
3678 * offchannel operation for some reason. p2p_search()
3679 * will be started from internal timeout.
3680 */
ed496f13 3681 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3682 p2p_set_timeout(p2p, 0, 100000);
3683 return 1;
3684 }
37448ede 3685 if (p2p->search_delay) {
ed496f13 3686 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3687 p2p->search_delay);
3688 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3689 (p2p->search_delay % 1000) * 1000);
3690 return 1;
3691 }
b22128ef
JM		 3692 p2p_search(p2p);
3693 return 1;
3694 }
3695
3696 return 0;
3697}
3698
3699
3700static void p2p_timeout_connect(struct p2p_data *p2p)
3701{
3702 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3703 if (p2p->go_neg_peer &&
3704 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3705 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
8c00fd00 3706 p2p_go_neg_failed(p2p, -1);
579a8098
JM		 3707 return;
3708 }
fb8984fd
JM		 3709 if (p2p->go_neg_peer &&
3710 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3711 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3712 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3713 p2p_connect_send(p2p, p2p->go_neg_peer);
3714 return;
3715 }
fdd48ff6
JM		 3716 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3717 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3718 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3719 p2p_set_timeout(p2p, 0, 30000);
3720 return;
3721 }
b22128ef 3722 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3723 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3724}
3725
3726
3727static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3728{
3729 if (p2p->go_neg_peer) {
3730 if (p2p->drv_in_listen) {
ed496f13 3731 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3732 return;
3733 }
9dac8c3e
FM		 3734
3735 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3736 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
8c00fd00 3737 p2p_go_neg_failed(p2p, -1);
9dac8c3e
FM		 3738 return;
3739 }
3740
b22128ef
JM		 3741 p2p_set_state(p2p, P2P_CONNECT);
3742 p2p_connect_send(p2p, p2p->go_neg_peer);
3743 } else
3744 p2p_set_state(p2p, P2P_IDLE);
3745}
3746
3747
3748static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3749{
b22128ef 3750 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
a2d63657
RR		 3751
3752 if (p2p->cfg->is_concurrent_session_active &&
3753 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3754 p2p_set_timeout(p2p, 0, 500000);
3755 else
3756 p2p_set_timeout(p2p, 0, 200000);
b22128ef
JM		 3757}
3758
3759
3760static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3761{
3762 struct p2p_device *dev = p2p->go_neg_peer;
3763
3764 if (dev == NULL) {
ed496f13 3765 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3766 return;
3767 }
3768
ed496f13 3769 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3770 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3771 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3772}
3773
3774
3775static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3776{
ed496f13 3777 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3778 if (p2p->sd_peer) {
3779 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 3780 p2p->sd_peer = NULL;
3781 }
3782 p2p_continue_find(p2p);
3783}
3784
3785
3786static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3787{
ed496f13 3788 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3789 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3790 p2p_continue_find(p2p);
3791}
3792
3793
6b56cc2d
JS		 3794static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3795{
3796 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3797
3798 /*
3799 * For user initiated PD requests that we have not gotten any responses
3800 * for while in IDLE state, we retry them a couple of times before
3801 * giving up.
3802 */
3803 if (!p2p->user_initiated_pd)
3804 return;
3805
ed496f13 3806 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 3807
3808 if (p2p->pd_retries) {
3809 p2p->pd_retries--;
3810 p2p_retry_pd(p2p);
3811 } else {
175171ac
JM		 3812 struct p2p_device *dev;
3813 int for_join = 0;
3814
3815 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3816 if (os_memcmp(p2p->pending_pd_devaddr,
3817 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3818 continue;
3819 if (dev->req_config_methods &&
3820 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3821 for_join = 1;
3822 }
3823
349b213c
JS		 3824 if (p2p->cfg->prov_disc_fail)
3825 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3826 p2p->pending_pd_devaddr,
175171ac
JM		 3827 for_join ?
3828 P2P_PROV_DISC_TIMEOUT_JOIN :
349b213c 3829 P2P_PROV_DISC_TIMEOUT);
6b56cc2d
JS		 3830 p2p_reset_pending_pd(p2p);
3831 }
3832}
3833
3834
b22128ef
JM		 3835static void p2p_timeout_invite(struct p2p_data *p2p)
3836{
3837 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3838 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 3839 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3840 /*
3841 * Better remain on operating channel instead of listen channel
3842 * when running a group.
3843 */
ed496f13 3844 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 3845 p2p_set_timeout(p2p, 0, 100000);
3846 return;
3847 }
96beff11 3848 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3849}
3850
3851
3852static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3853{
3854 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3855 p2p_set_state(p2p, P2P_INVITE);
3856 p2p_invite_send(p2p, p2p->invite_peer,
8e9f53c3 3857 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
b22128ef
JM		 3858 } else {
3859 if (p2p->invite_peer) {
ed496f13 3860 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 3861 if (p2p->cfg->invitation_result)
3862 p2p->cfg->invitation_result(
dbca75f8 3863 p2p->cfg->cb_ctx, -1, NULL, NULL,
dcd25d4c 3864 p2p->invite_peer->info.p2p_device_addr,
41d5ce9e 3865 0, 0);
b22128ef
JM		 3866 }
3867 p2p_set_state(p2p, P2P_IDLE);
3868 }
3869}
3870
3871
3872static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3873{
3874 struct p2p_data *p2p = eloop_ctx;
3875
ed496f13 3876 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 3877
3878 p2p->in_listen = 0;
a902d5a6
CM		 3879 if (p2p->drv_in_listen) {
3880 p2p_dbg(p2p, "Driver is still in listen state - stop it");
3881 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
3882 }
b22128ef
JM		 3883
3884 switch (p2p->state) {
3885 case P2P_IDLE:
6b56cc2d
JS		 3886 /* Check if we timed out waiting for PD req */
3887 if (p2p->pending_action_state == P2P_PENDING_PD)
3888 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 3889 break;
3890 case P2P_SEARCH:
6b56cc2d
JS		 3891 /* Check if we timed out waiting for PD req */
3892 if (p2p->pending_action_state == P2P_PENDING_PD)
3893 p2p_timeout_prov_disc_req(p2p);
37448ede 3894 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 3895 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3896 p2p->search_delay);
3897 p2p->in_search_delay = 1;
3898 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3899 (p2p->search_delay % 1000) * 1000);
3900 break;
3901 }
3902 p2p->in_search_delay = 0;
b22128ef
JM		 3903 p2p_search(p2p);
3904 break;
3905 case P2P_CONNECT:
3906 p2p_timeout_connect(p2p);
3907 break;
3908 case P2P_CONNECT_LISTEN:
3909 p2p_timeout_connect_listen(p2p);
3910 break;
3911 case P2P_GO_NEG:
3912 break;
3913 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 3914 /* Check if we timed out waiting for PD req */
3915 if (p2p->pending_action_state == P2P_PENDING_PD)
3916 p2p_timeout_prov_disc_req(p2p);
3917
b22128ef 3918 if (p2p->ext_listen_only) {
ed496f13 3919 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 3920 p2p->ext_listen_only = 0;
3921 p2p_set_state(p2p, P2P_IDLE);
3922 }
3923 break;
3924 case P2P_WAIT_PEER_CONNECT:
3925 p2p_timeout_wait_peer_connect(p2p);
3926 break;
3927 case P2P_WAIT_PEER_IDLE:
3928 p2p_timeout_wait_peer_idle(p2p);
3929 break;
3930 case P2P_SD_DURING_FIND:
3931 p2p_timeout_sd_during_find(p2p);
3932 break;
3933 case P2P_PROVISIONING:
3934 break;
3935 case P2P_PD_DURING_FIND:
3936 p2p_timeout_prov_disc_during_find(p2p);
3937 break;
3938 case P2P_INVITE:
3939 p2p_timeout_invite(p2p);
3940 break;
3941 case P2P_INVITE_LISTEN:
3942 p2p_timeout_invite_listen(p2p);
3943 break;
3944 }
3945}
3946
3947
3948int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3949{
3950 struct p2p_device *dev;
3951
3952 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 3953 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3954 MACSTR, MAC2STR(peer_addr));
b22128ef 3955 if (dev == NULL) {
ed496f13 3956 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 3957 return -1;
3958 }
3959 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3960 dev->flags |= P2P_DEV_USER_REJECTED;
3961 return 0;
3962}
3963
3964
e5a359cf 3965const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 3966{
3967 switch (method) {
3968 case WPS_NOT_READY:
3969 return "not-ready";
b22128ef
JM		 3970 case WPS_PIN_DISPLAY:
3971 return "Display";
3972 case WPS_PIN_KEYPAD:
3973 return "Keypad";
3974 case WPS_PBC:
3975 return "PBC";
c00ab85f
JM		 3976 case WPS_NFC:
3977 return "NFC";
4f88fc04
BG		 3978 case WPS_P2PS:
3979 return "P2PS";
b22128ef
JM		 3980 }
3981
3982 return "??";
3983}
3984
3985
3986static const char * p2p_go_state_text(enum p2p_go_state go_state)
3987{
3988 switch (go_state) {
3989 case UNKNOWN_GO:
3990 return "unknown";
3991 case LOCAL_GO:
3992 return "local";
3993 case REMOTE_GO:
3994 return "remote";
3995 }
3996
3997 return "??";
3998}
3999
4000
b3ffc80b
JM		 4001const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
4002 const u8 *addr, int next)
b22128ef
JM		 4003{
4004 struct p2p_device *dev;
b22128ef
JM		 4005
4006 if (addr)
4007 dev = p2p_get_device(p2p, addr);
4008 else
4009 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4010
4011 if (dev && next) {
4012 dev = dl_list_first(&dev->list, struct p2p_device, list);
4013 if (&dev->list == &p2p->devices)
4014 dev = NULL;
4015 }
4016
4017 if (dev == NULL)
b3ffc80b
JM		 4018 return NULL;
4019
4020 return &dev->info;
4021}
4022
4023
4024int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
4025 char *buf, size_t buflen)
4026{
4027 struct p2p_device *dev;
4028 int res;
4029 char *pos, *end;
acb69cec 4030 struct os_reltime now;
b3ffc80b
JM		 4031
4032 if (info == NULL)
b22128ef
JM		 4033 return -1;
4034
b3ffc80b
JM		 4035 dev = (struct p2p_device *) (((u8 *) info) -
4036 offsetof(struct p2p_device, info));
4037
b22128ef
JM		 4038 pos = buf;
4039 end = buf + buflen;
4040
acb69cec 4041 os_get_reltime(&now);
b22128ef
JM		 4042 res = os_snprintf(pos, end - pos,
4043 "age=%d\n"
4044 "listen_freq=%d\n"
b22128ef
JM		 4045 "wps_method=%s\n"
4046 "interface_addr=" MACSTR "\n"
4047 "member_in_go_dev=" MACSTR "\n"
4048 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 4049 "go_neg_req_sent=%d\n"
4050 "go_state=%s\n"
4051 "dialog_token=%u\n"
4052 "intended_addr=" MACSTR "\n"
4053 "country=%c%c\n"
4054 "oper_freq=%d\n"
4055 "req_config_methods=0x%x\n"
f667e031 4056 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef 4057 "status=%d\n"
b22128ef
JM		 4058 "invitation_reqs=%u\n",
4059 (int) (now.sec - dev->last_seen.sec),
4060 dev->listen_freq,
b22128ef
JM		 4061 p2p_wps_method_text(dev->wps_method),
4062 MAC2STR(dev->interface_addr),
4063 MAC2STR(dev->member_in_go_dev),
4064 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 4065 dev->go_neg_req_sent,
4066 p2p_go_state_text(dev->go_state),
4067 dev->dialog_token,
4068 MAC2STR(dev->intended_addr),
4069 dev->country[0] ? dev->country[0] : '_',
4070 dev->country[1] ? dev->country[1] : '_',
4071 dev->oper_freq,
4072 dev->req_config_methods,
4073 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
4074 "[PROBE_REQ_ONLY]" : "",
4075 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
4076 dev->flags & P2P_DEV_NOT_YET_READY ?
4077 "[NOT_YET_READY]" : "",
b22128ef
JM		 4078 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
4079 "[PD_PEER_DISPLAY]" : "",
4080 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
4081 "[PD_PEER_KEYPAD]" : "",
4082 dev->flags & P2P_DEV_USER_REJECTED ?
4083 "[USER_REJECTED]" : "",
4084 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
4085 "[PEER_WAITING_RESPONSE]" : "",
4086 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
4087 "[PREFER_PERSISTENT_GROUP]" : "",
4088 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
4089 "[WAIT_GO_NEG_RESPONSE]" : "",
4090 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
4091 "[WAIT_GO_NEG_CONFIRM]" : "",
4092 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
4093 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 4094 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 4095 "[FORCE_FREQ]" : "",
4096 dev->flags & P2P_DEV_PD_FOR_JOIN ?
4097 "[PD_FOR_JOIN]" : "",
b22128ef 4098 dev->status,
b22128ef 4099 dev->invitation_reqs);
d85e1fc8 4100 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4101 return pos - buf;
4102 pos += res;
4103
4104 if (dev->ext_listen_period) {
4105 res = os_snprintf(pos, end - pos,
4106 "ext_listen_period=%u\n"
4107 "ext_listen_interval=%u\n",
4108 dev->ext_listen_period,
4109 dev->ext_listen_interval);
d85e1fc8 4110 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4111 return pos - buf;
4112 pos += res;
4113 }
4114
4115 if (dev->oper_ssid_len) {
4116 res = os_snprintf(pos, end - pos,
4117 "oper_ssid=%s\n",
4118 wpa_ssid_txt(dev->oper_ssid,
4119 dev->oper_ssid_len));
d85e1fc8 4120 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4121 return pos - buf;
4122 pos += res;
4123 }
4124
9675ce35
JM		 4125#ifdef CONFIG_WIFI_DISPLAY
4126 if (dev->info.wfd_subelems) {
4127 res = os_snprintf(pos, end - pos, "wfd_subelems=");
d85e1fc8 4128 if (os_snprintf_error(end - pos, res))
9675ce35
JM		 4129 return pos - buf;
4130 pos += res;
4131
4132 pos += wpa_snprintf_hex(pos, end - pos,
4133 wpabuf_head(dev->info.wfd_subelems),
4134 wpabuf_len(dev->info.wfd_subelems));
4135
4136 res = os_snprintf(pos, end - pos, "\n");
d85e1fc8 4137 if (os_snprintf_error(end - pos, res))
9675ce35
JM		 4138 return pos - buf;
4139 pos += res;
4140 }
4141#endif /* CONFIG_WIFI_DISPLAY */
4142
b22128ef
JM		 4143 return pos - buf;
4144}
4145
4146
b3bcc0f5
JM		 4147int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
4148{
4149 return p2p_get_device(p2p, addr) != NULL;
4150}
4151
4152
b22128ef
JM		 4153void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
4154{
4155 if (enabled) {
ed496f13 4156 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 4157 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4158 } else {
ed496f13 4159 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 4160 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4161 }
4162}
4163
4164
4165static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
4166 u32 duration2, u32 interval2)
4167{
4168 struct wpabuf *req;
4169 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
4170 u8 *len;
4171
4172 req = wpabuf_alloc(100);
4173 if (req == NULL)
4174 return NULL;
4175
4176 if (duration1 || interval1) {
4177 os_memset(&desc1, 0, sizeof(desc1));
4178 desc1.count_type = 1;
4179 desc1.duration = duration1;
4180 desc1.interval = interval1;
4181 ptr1 = &desc1;
4182
4183 if (duration2 || interval2) {
4184 os_memset(&desc2, 0, sizeof(desc2));
4185 desc2.count_type = 2;
4186 desc2.duration = duration2;
4187 desc2.interval = interval2;
4188 ptr2 = &desc2;
4189 }
4190 }
4191
4192 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
4193 len = p2p_buf_add_ie_hdr(req);
4194 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
4195 p2p_buf_update_ie_hdr(req, len);
4196
4197 return req;
4198}
4199
4200
4201int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
4202 const u8 *own_interface_addr, unsigned int freq,
4203 u32 duration1, u32 interval1, u32 duration2,
4204 u32 interval2)
4205{
4206 struct wpabuf *req;
4207
ed496f13
JM		 4208 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
4209 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
4210 "dur2=%u int2=%u",
b22128ef
JM		 4211 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
4212 freq, duration1, interval1, duration2, interval2);
4213
4214 req = p2p_build_presence_req(duration1, interval1, duration2,
4215 interval2);
4216 if (req == NULL)
4217 return -1;
4218
4219 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 4220 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
4221 go_interface_addr,
4222 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 4223 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 4224 }
4225 wpabuf_free(req);
4226
4227 return 0;
4228}
4229
4230
4231static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
4232 size_t noa_len, u8 dialog_token)
4233{
4234 struct wpabuf *resp;
4235 u8 *len;
4236
4237 resp = wpabuf_alloc(100 + noa_len);
4238 if (resp == NULL)
4239 return NULL;
4240
4241 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
4242 len = p2p_buf_add_ie_hdr(resp);
4243 p2p_buf_add_status(resp, status);
4244 if (noa) {
4245 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
4246 wpabuf_put_le16(resp, noa_len);
4247 wpabuf_put_data(resp, noa, noa_len);
4248 } else
4249 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
4250 p2p_buf_update_ie_hdr(resp, len);
4251
4252 return resp;
4253}
4254
4255
4256static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
4257 const u8 *sa, const u8 *data, size_t len,
4258 int rx_freq)
4259{
4260 struct p2p_message msg;
4261 u8 status;
4262 struct wpabuf *resp;
4263 size_t g;
4264 struct p2p_group *group = NULL;
4265 int parsed = 0;
4266 u8 noa[50];
4267 int noa_len;
4268
ed496f13 4269 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 4270
4271 for (g = 0; g < p2p->num_groups; g++) {
4272 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
4273 ETH_ALEN) == 0) {
4274 group = p2p->groups[g];
4275 break;
4276 }
4277 }
4278 if (group == NULL) {
ed496f13 4279 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 4280 MACSTR, MAC2STR(da));
4281 return;
4282 }
4283
4284 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 4285 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 4286 status = P2P_SC_FAIL_INVALID_PARAMS;
4287 goto fail;
4288 }
4289 parsed = 1;
4290
4291 if (msg.noa == NULL) {
ed496f13 4292 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 4293 status = P2P_SC_FAIL_INVALID_PARAMS;
4294 goto fail;
4295 }
4296
4297 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
4298
4299fail:
4300 if (p2p->cfg->get_noa)
4301 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
4302 sizeof(noa));
4303 else
4304 noa_len = -1;
4305 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
4306 noa_len > 0 ? noa_len : 0,
4307 msg.dialog_token);
4308 if (parsed)
4309 p2p_parse_free(&msg);
4310 if (resp == NULL)
4311 return;
4312
4313 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 4314 if (p2p_send_action(p2p, rx_freq, sa, da, da,
4315 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 4316 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 4317 }
4318 wpabuf_free(resp);
4319}
4320
4321
4322static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
4323 const u8 *sa, const u8 *data, size_t len)
4324{
4325 struct p2p_message msg;
4326
ed496f13 4327 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 4328
4329 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 4330 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 4331 return;
4332 }
4333
4334 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 4335 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 4336 p2p_parse_free(&msg);
4337 return;
4338 }
4339
c64e3a08
JM		 4340 if (p2p->cfg->presence_resp) {
4341 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
4342 msg.noa, msg.noa_len);
4343 }
4344
b22128ef 4345 if (*msg.status) {
ed496f13 4346 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 4347 *msg.status);
4348 p2p_parse_free(&msg);
4349 return;
4350 }
4351
ed496f13 4352 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 4353 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
4354 msg.noa, msg.noa_len);
4355 /* TODO: process NoA */
4356 p2p_parse_free(&msg);
4357}
4358
4359
4360static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4361{
4362 struct p2p_data *p2p = eloop_ctx;
4363
4364 if (p2p->ext_listen_interval) {
4365 /* Schedule next extended listen timeout */
4366 eloop_register_timeout(p2p->ext_listen_interval_sec,
4367 p2p->ext_listen_interval_usec,
4368 p2p_ext_listen_timeout, p2p, NULL);
4369 }
4370
7e68be38
JM		 4371 if ((p2p->cfg->is_p2p_in_progress &&
4372 p2p->cfg->is_p2p_in_progress(p2p->cfg->cb_ctx)) ||
4373 (p2p->pending_action_state == P2P_PENDING_PD &&
4374 p2p->pd_retries > 0)) {
0f1034e3
SD		 4375 p2p_dbg(p2p, "Operation in progress - skip Extended Listen timeout (%s)",
4376 p2p_state_txt(p2p->state));
4377 return;
4378 }
4379
f7a69057
JM		 4380 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
4381 /*
4382 * This should not really happen, but it looks like the Listen
4383 * command may fail is something else (e.g., a scan) was
4384 * running at an inconvenient time. As a workaround, allow new
4385 * Extended Listen operation to be started.
4386 */
ed496f13 4387 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 4388 p2p->ext_listen_only = 0;
4389 p2p_set_state(p2p, P2P_IDLE);
4390 }
4391
b22128ef 4392 if (p2p->state != P2P_IDLE) {
ed496f13 4393 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 4394 return;
4395 }
4396
ed496f13 4397 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 4398 p2p->ext_listen_only = 1;
4399 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 4400 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 4401 p2p->ext_listen_only = 0;
4402 }
4403}
4404
4405
4406int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
4407 unsigned int interval)
4408{
4409 if (period > 65535 || interval > 65535 || period > interval ||
4410 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 4411 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
4412 period, interval);
b22128ef
JM		 4413 return -1;
4414 }
4415
4416 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
4417
4418 if (interval == 0) {
ed496f13 4419 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 4420 p2p->ext_listen_period = 0;
4421 p2p->ext_listen_interval = 0;
4422 return 0;
4423 }
4424
ed496f13
JM		 4425 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4426 period, interval);
b22128ef
JM		 4427 p2p->ext_listen_period = period;
4428 p2p->ext_listen_interval = interval;
4429 p2p->ext_listen_interval_sec = interval / 1000;
4430 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
4431
4432 eloop_register_timeout(p2p->ext_listen_interval_sec,
4433 p2p->ext_listen_interval_usec,
4434 p2p_ext_listen_timeout, p2p, NULL);
4435
4436 return 0;
4437}
4438
4439
4440void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4441 const u8 *ie, size_t ie_len)
4442{
4443 struct p2p_message msg;
4444
4445 if (bssid == NULL || ie == NULL)
4446 return;
4447
4448 os_memset(&msg, 0, sizeof(msg));
4449 if (p2p_parse_ies(ie, ie_len, &msg))
4450 return;
04c366cb
EL		 4451 if (msg.minor_reason_code == NULL) {
4452 p2p_parse_free(&msg);
b22128ef 4453 return;
04c366cb 4454 }
b22128ef 4455
ed496f13 4456 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 4457 " reason_code=%u minor_reason_code=%u",
4458 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4459
4460 p2p_parse_free(&msg);
4461}
4462
4463
4464void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4465 const u8 *ie, size_t ie_len)
4466{
4467 struct p2p_message msg;
4468
4469 if (bssid == NULL || ie == NULL)
4470 return;
4471
4472 os_memset(&msg, 0, sizeof(msg));
4473 if (p2p_parse_ies(ie, ie_len, &msg))
4474 return;
04c366cb
EL		 4475 if (msg.minor_reason_code == NULL) {
4476 p2p_parse_free(&msg);
b22128ef 4477 return;
04c366cb 4478 }
b22128ef 4479
ed496f13 4480 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 4481 " reason_code=%u minor_reason_code=%u",
4482 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4483
4484 p2p_parse_free(&msg);
4485}
4486
4487
4488void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
4489{
4490 if (enabled) {
ed496f13 4491 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 4492 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
4493 } else {
ed496f13 4494 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 4495 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
4496 }
4497}
4498
4499
1595eb93
AM		 4500int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class,
4501 u8 *op_channel)
4502{
4503 return p2p_channel_random_social(&p2p->channels, op_class, op_channel);
4504}
4505
4506
e3bd6e9d
IP		 4507int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
4508 u8 forced)
b22128ef 4509{
9ccd9165 4510 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 4511 return -1;
4512
ed496f13
JM		 4513 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
4514 reg_class, channel);
e3bd6e9d
IP		 4515
4516 /*
4517 * Listen channel was set in configuration or set by control interface;
4518 * cannot override it.
4519 */
4520 if (p2p->cfg->channel_forced && forced == 0)
4521 return -1;
4522
4523 if (p2p->state == P2P_IDLE) {
4524 p2p->cfg->reg_class = reg_class;
4525 p2p->cfg->channel = channel;
4526 p2p->cfg->channel_forced = forced;
4527 } else {
4528 p2p_dbg(p2p, "Defer setting listen channel");
4529 p2p->pending_reg_class = reg_class;
4530 p2p->pending_channel = channel;
4531 p2p->pending_channel_forced = forced;
4532 }
b22128ef
JM		 4533
4534 return 0;
4535}
4536
4537
e3bd6e9d
IP		 4538u8 p2p_get_listen_channel(struct p2p_data *p2p)
4539{
4540 return p2p->cfg->channel;
4541}
4542
4543
b22128ef
JM		 4544int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
4545{
ed496f13 4546 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 4547 if (postfix == NULL) {
4548 p2p->cfg->ssid_postfix_len = 0;
4549 return 0;
4550 }
4551 if (len > sizeof(p2p->cfg->ssid_postfix))
4552 return -1;
4553 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
4554 p2p->cfg->ssid_postfix_len = len;
4555 return 0;
4556}
4557
4558
2463ba70
JS		 4559int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
4560 int cfg_op_channel)
4561{
9ccd9165 4562 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 4563 return -1;
4564
ed496f13
JM		 4565 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
4566 op_reg_class, op_channel);
2463ba70
JS		 4567 p2p->cfg->op_reg_class = op_reg_class;
4568 p2p->cfg->op_channel = op_channel;
4569 p2p->cfg->cfg_op_channel = cfg_op_channel;
4570 return 0;
4571}
4572
4573
21d996f7
JM		 4574int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
4575 const struct p2p_channel *pref_chan)
4576{
4577 struct p2p_channel *n;
4578
4579 if (pref_chan) {
4580 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
4581 if (n == NULL)
4582 return -1;
4583 os_memcpy(n, pref_chan,
4584 num_pref_chan * sizeof(struct p2p_channel));
4585 } else
4586 n = NULL;
4587
4588 os_free(p2p->cfg->pref_chan);
4589 p2p->cfg->pref_chan = n;
4590 p2p->cfg->num_pref_chan = num_pref_chan;
4591
4592 return 0;
4593}
4594
4595
556b30da
JM		 4596int p2p_set_no_go_freq(struct p2p_data *p2p,
4597 const struct wpa_freq_range_list *list)
4598{
4599 struct wpa_freq_range *tmp;
4600
4601 if (list == NULL || list->num == 0) {
4602 os_free(p2p->no_go_freq.range);
4603 p2p->no_go_freq.range = NULL;
4604 p2p->no_go_freq.num = 0;
4605 return 0;
4606 }
4607
4608 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
4609 if (tmp == NULL)
4610 return -1;
4611 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
4612 os_free(p2p->no_go_freq.range);
4613 p2p->no_go_freq.range = tmp;
4614 p2p->no_go_freq.num = list->num;
4615 p2p_dbg(p2p, "Updated no GO chan list");
4616
4617 return 0;
4618}
4619
4620
b22128ef
JM		 4621int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4622 u8 *iface_addr)
4623{
4624 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4625 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4626 return -1;
4627 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4628 return 0;
4629}
80c9582a
JM		 4630
4631
4147a2cc
JM		 4632int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4633 u8 *dev_addr)
4634{
4635 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4636 if (dev == NULL)
4637 return -1;
c5db8e51 4638 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4639 return 0;
4640}
4641
4642
80c9582a
JM		 4643void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4644{
4645 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4646 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 4647 p2p_dbg(p2p, "Disable peer filter");
80c9582a 4648 else
ed496f13
JM		 4649 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4650 MAC2STR(p2p->peer_filter));
80c9582a 4651}
72044390
JM		 4652
4653
4654void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4655{
ed496f13 4656 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 4657 if (p2p->cross_connect == enabled)
4658 return;
4659 p2p->cross_connect = enabled;
4660 /* TODO: may need to tear down any action group where we are GO(?) */
4661}
f8d0131a
JM		 4662
4663
4664int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4665{
4666 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4667 if (dev == NULL)
4668 return -1;
4669 if (dev->oper_freq <= 0)
4670 return -1;
4671 return dev->oper_freq;
4672}
0f66abd2
SS		 4673
4674
4675void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4676{
ed496f13 4677 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 4678 enabled ? "enabled" : "disabled");
4679 p2p->cfg->p2p_intra_bss = enabled;
4680}
b5c9da8d
JM		 4681
4682
51e9f228
JM		 4683void p2p_update_channel_list(struct p2p_data *p2p,
4684 const struct p2p_channels *chan,
4685 const struct p2p_channels *cli_chan)
b5c9da8d 4686{
ed496f13 4687 p2p_dbg(p2p, "Update channel list");
b5c9da8d 4688 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
51e9f228
JM		 4689 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4690 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4691 sizeof(struct p2p_channels));
4692 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
b5c9da8d 4693}
3f9285ff
JM		 4694
4695
4696int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4697 const u8 *src, const u8 *bssid, const u8 *buf,
4698 size_t len, unsigned int wait_time)
4699{
4700 if (p2p->p2p_scan_running) {
ed496f13 4701 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
3f9285ff 4702 if (p2p->after_scan_tx) {
ed496f13 4703 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
3f9285ff
JM		 4704 os_free(p2p->after_scan_tx);
4705 }
4706 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4707 len);
4708 if (p2p->after_scan_tx == NULL)
4709 return -1;
4710 p2p->after_scan_tx->freq = freq;
4711 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4712 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4713 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4714 p2p->after_scan_tx->len = len;
4715 p2p->after_scan_tx->wait_time = wait_time;
4716 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4717 return 0;
4718 }
4719
4720 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4721 buf, len, wait_time);
4722}
7cfc4ac3
AGS		 4723
4724
4725void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4726 int freq_overall)
4727{
ed496f13
JM		 4728 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4729 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4730 p2p->best_freq_24 = freq_24;
4731 p2p->best_freq_5 = freq_5;
4732 p2p->best_freq_overall = freq_overall;
4733}
231bbd03
SS		 4734
4735
6cb27aa8
JM		 4736void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4737{
ed496f13 4738 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4739 p2p->own_freq_preference = freq;
4740}
4741
4742
231bbd03
SS		 4743const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4744{
4745 if (p2p == NULL || p2p->go_neg_peer == NULL)
4746 return NULL;
c5db8e51 4747 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4748}
c165d81e
JB		 4749
4750
4751const struct p2p_peer_info *
4752p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4753{
4754 struct p2p_device *dev;
4755
4756 if (addr) {
4757 dev = p2p_get_device(p2p, addr);
4758 if (!dev)
4759 return NULL;
4760
4761 if (!next) {
4762 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4763 return NULL;
4764
4765 return &dev->info;
4766 } else {
4767 do {
4768 dev = dl_list_first(&dev->list,
4769 struct p2p_device,
4770 list);
0bceb8d6 4771 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4772 return NULL;
4773 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4774 }
4775 } else {
4776 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4777 if (!dev)
4778 return NULL;
4779 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4780 dev = dl_list_first(&dev->list,
4781 struct p2p_device,
4782 list);
0bceb8d6 4783 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4784 return NULL;
4785 }
4786 }
4787
4788 return &dev->info;
4789}
303f60d3
JM		 4790
4791
4792int p2p_in_progress(struct p2p_data *p2p)
4793{
4794 if (p2p == NULL)
4795 return 0;
1b5d4714 4796 if (p2p->state == P2P_SEARCH)
99fcd404 4797 return 2;
fc6997b3 4798 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 4799}
4f219667
JM		 4800
4801
4802void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4803 u8 client_timeout)
4804{
4805 if (p2p) {
4806 p2p->go_timeout = go_timeout;
4807 p2p->client_timeout = client_timeout;
4808 }
4809}
99fcd404
JM		 4810
4811
9675ce35
JM		 4812#ifdef CONFIG_WIFI_DISPLAY
4813
4814static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4815{
4816 size_t g;
4817 struct p2p_group *group;
4818
4819 for (g = 0; g < p2p->num_groups; g++) {
4820 group = p2p->groups[g];
3342c263 4821 p2p_group_force_beacon_update_ies(group);
9675ce35
JM		 4822 }
4823}
4824
4825
4826int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4827{
4828 wpabuf_free(p2p->wfd_ie_beacon);
4829 p2p->wfd_ie_beacon = ie;
4830 p2p_update_wfd_ie_groups(p2p);
4831 return 0;
4832}
4833
4834
4835int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4836{
4837 wpabuf_free(p2p->wfd_ie_probe_req);
4838 p2p->wfd_ie_probe_req = ie;
4839 return 0;
4840}
4841
4842
4843int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4844{
4845 wpabuf_free(p2p->wfd_ie_probe_resp);
4846 p2p->wfd_ie_probe_resp = ie;
4847 p2p_update_wfd_ie_groups(p2p);
4848 return 0;
4849}
4850
4851
4852int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4853{
4854 wpabuf_free(p2p->wfd_ie_assoc_req);
4855 p2p->wfd_ie_assoc_req = ie;
4856 return 0;
4857}
4858
4859
4860int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4861{
4862 wpabuf_free(p2p->wfd_ie_invitation);
4863 p2p->wfd_ie_invitation = ie;
4864 return 0;
4865}
4866
4867
4868int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4869{
4870 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4871 p2p->wfd_ie_prov_disc_req = ie;
4872 return 0;
4873}
4874
4875
4876int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4877{
4878 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4879 p2p->wfd_ie_prov_disc_resp = ie;
4880 return 0;
4881}
4882
4883
4884int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4885{
4886 wpabuf_free(p2p->wfd_ie_go_neg);
4887 p2p->wfd_ie_go_neg = ie;
4888 return 0;
4889}
4890
4891
4892int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4893{
4894 wpabuf_free(p2p->wfd_dev_info);
4895 if (elem) {
4896 p2p->wfd_dev_info = wpabuf_dup(elem);
4897 if (p2p->wfd_dev_info == NULL)
4898 return -1;
4899 } else
4900 p2p->wfd_dev_info = NULL;
4901
4902 return 0;
4903}
4904
4905
4906int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4907{
4908 wpabuf_free(p2p->wfd_assoc_bssid);
4909 if (elem) {
4910 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4911 if (p2p->wfd_assoc_bssid == NULL)
4912 return -1;
4913 } else
4914 p2p->wfd_assoc_bssid = NULL;
4915
4916 return 0;
4917}
4918
4919
4920int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4921 const struct wpabuf *elem)
4922{
4923 wpabuf_free(p2p->wfd_coupled_sink_info);
4924 if (elem) {
4925 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4926 if (p2p->wfd_coupled_sink_info == NULL)
4927 return -1;
4928 } else
4929 p2p->wfd_coupled_sink_info = NULL;
4930
4931 return 0;
4932}
4933
4934#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 4935
4936
4937int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4938 int max_disc_tu)
4939{
4940 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4941 return -1;
4942
4943 p2p->min_disc_int = min_disc_int;
4944 p2p->max_disc_int = max_disc_int;
4945 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 4946 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4947 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 4948
4949 return 0;
4950}
ed496f13
JM		 4951
4952
4953void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4954{
4955 va_list ap;
4956 char buf[500];
4957
4958 if (!p2p->cfg->debug_print)
4959 return;
4960
4961 va_start(ap, fmt);
4962 vsnprintf(buf, sizeof(buf), fmt, ap);
4963 buf[sizeof(buf) - 1] = '\0';
4964 va_end(ap);
4965 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4966}
4967
4968
4969void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4970{
4971 va_list ap;
4972 char buf[500];
4973
4974 if (!p2p->cfg->debug_print)
4975 return;
4976
4977 va_start(ap, fmt);
4978 vsnprintf(buf, sizeof(buf), fmt, ap);
4979 buf[sizeof(buf) - 1] = '\0';
4980 va_end(ap);
4981 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4982}
4983
4984
4985void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4986{
4987 va_list ap;
4988 char buf[500];
4989
4990 if (!p2p->cfg->debug_print)
4991 return;
4992
4993 va_start(ap, fmt);
4994 vsnprintf(buf, sizeof(buf), fmt, ap);
4995 buf[sizeof(buf) - 1] = '\0';
4996 va_end(ap);
4997 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4998}
93588780
JM		 4999
5000
36716eef
TB		 5001void p2p_loop_on_known_peers(struct p2p_data *p2p,
5002 void (*peer_callback)(struct p2p_peer_info *peer,
5003 void *user_data),
5004 void *user_data)
5005{
5006 struct p2p_device *dev, *n;
5007
5008 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
5009 peer_callback(&dev->info, user_data);
5010 }
5011}
5012
5013
93588780
JM		 5014#ifdef CONFIG_WPS_NFC
5015
59b45d1a 5016static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
abe44e3c
JM		 5017 int client_freq,
5018 const u8 *go_dev_addr,
5019 const u8 *ssid, size_t ssid_len)
93588780
JM		 5020{
5021 struct wpabuf *buf;
5022 u8 op_class, channel;
5023 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
5024
5025 buf = wpabuf_alloc(1000);
5026 if (buf == NULL)
5027 return NULL;
5028
5029 op_class = p2p->cfg->reg_class;
5030 channel = p2p->cfg->channel;
5031
5032 p2p_buf_add_capability(buf, p2p->dev_capab &
5033 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
5034 p2p_buf_add_device_info(buf, p2p, NULL);
5035
5036 if (p2p->num_groups > 0) {
d06e9ac5 5037 int freq = p2p_group_get_freq(p2p->groups[0]);
93588780 5038 role = P2P_GO_IN_A_GROUP;
d06e9ac5
JM		 5039 if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
5040 p2p_dbg(p2p,
5041 "Unknown GO operating frequency %d MHz for NFC handover",
5042 freq);
5043 wpabuf_free(buf);
5044 return NULL;
5045 }
59b45d1a
JM		 5046 } else if (client_freq > 0) {
5047 role = P2P_CLIENT_IN_A_GROUP;
d06e9ac5
JM		 5048 if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
5049 p2p_dbg(p2p,
5050 "Unknown client operating frequency %d MHz for NFC handover",
5051 client_freq);
5052 wpabuf_free(buf);
5053 return NULL;
5054 }
93588780
JM		 5055 }
5056
5057 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
5058 channel, role);
5059
5060 if (p2p->num_groups > 0) {
5061 /* Limit number of clients to avoid very long message */
5062 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
5063 p2p_group_buf_add_id(p2p->groups[0], buf);
abe44e3c
JM		 5064 } else if (client_freq > 0 &&
5065 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
5066 ssid && ssid_len > 0) {
5067 /*
5068 * Add the optional P2P Group ID to indicate in which group this
5069 * device is a P2P Client.
5070 */
5071 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
93588780
JM		 5072 }
5073
5074 return buf;
5075}
5076
5077
59b45d1a 5078struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
abe44e3c
JM		 5079 int client_freq,
5080 const u8 *go_dev_addr,
5081 const u8 *ssid, size_t ssid_len)
93588780 5082{
abe44e3c
JM		 5083 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5084 ssid_len);
93588780
JM		 5085}
5086
5087
59b45d1a 5088struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
abe44e3c
JM		 5089 int client_freq,
5090 const u8 *go_dev_addr,
5091 const u8 *ssid, size_t ssid_len)
93588780 5092{
abe44e3c
JM		 5093 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5094 ssid_len);
93588780
JM		 5095}
5096
db6ae69e
JM		 5097
5098int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
5099 struct p2p_nfc_params *params)
5100{
5101 struct p2p_message msg;
5102 struct p2p_device *dev;
5103 const u8 *p2p_dev_addr;
59b45d1a
JM		 5104 int freq;
5105 enum p2p_role_indication role;
db6ae69e
JM		 5106
5107 params->next_step = NO_ACTION;
5108
5109 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
5110 params->p2p_attr, params->p2p_len, &msg)) {
5111 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
5112 p2p_parse_free(&msg);
5113 return -1;
5114 }
5115
5116 if (msg.p2p_device_addr)
5117 p2p_dev_addr = msg.p2p_device_addr;
5118 else if (msg.device_id)
5119 p2p_dev_addr = msg.device_id;
5120 else {
5121 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
5122 p2p_parse_free(&msg);
5123 return -1;
5124 }
5125
5126 if (msg.oob_dev_password) {
5127 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
5128 msg.oob_dev_password_len);
5129 params->oob_dev_pw_len = msg.oob_dev_password_len;
5130 }
5131
5132 dev = p2p_create_device(p2p, p2p_dev_addr);
5133 if (dev == NULL) {
5134 p2p_parse_free(&msg);
5135 return -1;
5136 }
5137
5138 params->peer = &dev->info;
5139
5140 os_get_reltime(&dev->last_seen);
5141 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
5142 p2p_copy_wps_info(p2p, dev, 0, &msg);
5143
59b45d1a
JM		 5144 if (!msg.oob_go_neg_channel) {
5145 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
5146 return -1;
5147 }
db6ae69e 5148
59b45d1a
JM		 5149 if (msg.oob_go_neg_channel[3] == 0 &&
5150 msg.oob_go_neg_channel[4] == 0)
5151 freq = 0;
5152 else
5153 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
5154 msg.oob_go_neg_channel[4]);
5155 if (freq < 0) {
5156 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
5157 return -1;
59b45d1a 5158 }
23318bea 5159 role = msg.oob_go_neg_channel[5];
db6ae69e 5160
23318bea
JM		 5161 if (role == P2P_GO_IN_A_GROUP) {
5162 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
5163 params->go_freq = freq;
abe44e3c
JM		 5164 } else if (role == P2P_CLIENT_IN_A_GROUP) {
5165 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
5166 freq);
5167 params->go_freq = freq;
23318bea
JM		 5168 } else
5169 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
5170 dev->oob_go_neg_freq = freq;
5171
5172 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
59b45d1a
JM		 5173 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
5174 p2p->cfg->channel);
5175 if (freq < 0) {
5176 p2p_dbg(p2p, "Own listen channel not known");
5177 return -1;
5178 }
5179 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
5180 dev->oob_go_neg_freq = freq;
db6ae69e
JM		 5181 }
5182
23318bea
JM		 5183 if (msg.group_id) {
5184 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
5185 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
5186 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
5187 params->go_ssid_len);
5188 }
59b45d1a 5189
db6ae69e
JM		 5190 if (dev->flags & P2P_DEV_USER_REJECTED) {
5191 p2p_dbg(p2p, "Do not report rejected device");
8a387a26 5192 p2p_parse_free(&msg);
db6ae69e
JM		 5193 return 0;
5194 }
5195
5196 if (!(dev->flags & P2P_DEV_REPORTED)) {
5197 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
5198 !(dev->flags & P2P_DEV_REPORTED_ONCE));
5199 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
5200 }
8a387a26 5201 p2p_parse_free(&msg);
db6ae69e 5202
59b45d1a 5203 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
74df9ecd 5204 params->next_step = BOTH_GO;
59b45d1a 5205 else if (role == P2P_GO_IN_A_GROUP)
db6ae69e 5206 params->next_step = JOIN_GROUP;
59b45d1a
JM		 5207 else if (role == P2P_CLIENT_IN_A_GROUP) {
5208 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
5209 params->next_step = PEER_CLIENT;
5210 } else if (p2p->num_groups > 0)
db6ae69e
JM		 5211 params->next_step = AUTH_JOIN;
5212 else if (params->sel)
5213 params->next_step = INIT_GO_NEG;
5214 else
5215 params->next_step = RESP_GO_NEG;
5216
5217 return 0;
5218}
5219
c4f87a70
JM		 5220
5221void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
5222 int go_intent,
5223 const u8 *own_interface_addr)
5224{
5225
5226 p2p->authorized_oob_dev_pw_id = dev_pw_id;
5227 if (dev_pw_id == 0) {
5228 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
5229 return;
5230 }
5231
5232 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
5233 dev_pw_id);
5234
5235 p2p->go_intent = go_intent;
5236 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
5237}
5238
93588780 5239#endif /* CONFIG_WPS_NFC */
1b928f96
JM		 5240
5241
5242int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len)
5243{
5244 if (len < 8 || len > 63)
5245 return -1;
5246 p2p->cfg->passphrase_len = len;
5247 return 0;
5248}
86bd36f0
JM		 5249
5250
5251void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem)
5252{
5253 p2p->vendor_elem = vendor_elem;
5254}
0c6eee8b
RR		 5255
5256
5257void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx)
5258{
5259 struct p2p_data *p2p = eloop_ctx;
5260
5261 p2p_dbg(p2p,
5262 "Timeout on waiting peer to become ready for GO Negotiation");
8c00fd00 5263 p2p_go_neg_failed(p2p, -1);
0c6eee8b 5264}
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