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P2P: Send Action frame regardless if p2p_scan in progress
[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"
c58eed6d 13#include "common/defs.h"
b22128ef
JM		 14#include "common/ieee802_11_defs.h"
15#include "common/ieee802_11_common.h"
86bd36f0 16#include "common/wpa_ctrl.h"
51775096
BG		 17#include "crypto/sha256.h"
18#include "crypto/crypto.h"
b22128ef
JM		 19#include "wps/wps_i.h"
20#include "p2p_i.h"
21#include "p2p.h"
22
23
24static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
25static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
26static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
27 const u8 *sa, const u8 *data, size_t len,
28 int rx_freq);
29static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
30 const u8 *sa, const u8 *data,
31 size_t len);
32static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40c03fd4 33static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 34
35
40c03fd4
JM		 36/*
37 * p2p_scan recovery timeout
38 *
39 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
40 * timeout for this to avoid hitting P2P timeout unnecessarily.
41 */
42#define P2P_SCAN_TIMEOUT 35
43
b22128ef
JM		 44/**
45 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
46 * entries will be removed
47 */
dcdd3838
DS		 48#ifndef P2P_PEER_EXPIRATION_AGE
49#define P2P_PEER_EXPIRATION_AGE 60
50#endif /* P2P_PEER_EXPIRATION_AGE */
b22128ef 51
b22128ef 52
8c0d0ff2 53void p2p_expire_peers(struct p2p_data *p2p)
b22128ef
JM		 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
b22128ef
JM		 106static const char * p2p_state_txt(int state)
107{
108 switch (state) {
109 case P2P_IDLE:
110 return "IDLE";
111 case P2P_SEARCH:
112 return "SEARCH";
113 case P2P_CONNECT:
114 return "CONNECT";
115 case P2P_CONNECT_LISTEN:
116 return "CONNECT_LISTEN";
117 case P2P_GO_NEG:
118 return "GO_NEG";
119 case P2P_LISTEN_ONLY:
120 return "LISTEN_ONLY";
121 case P2P_WAIT_PEER_CONNECT:
122 return "WAIT_PEER_CONNECT";
123 case P2P_WAIT_PEER_IDLE:
124 return "WAIT_PEER_IDLE";
125 case P2P_SD_DURING_FIND:
126 return "SD_DURING_FIND";
127 case P2P_PROVISIONING:
128 return "PROVISIONING";
129 case P2P_PD_DURING_FIND:
130 return "PD_DURING_FIND";
131 case P2P_INVITE:
132 return "INVITE";
133 case P2P_INVITE_LISTEN:
134 return "INVITE_LISTEN";
135 default:
136 return "?";
137 }
138}
139
140
4c559019
JM		 141const char * p2p_get_state_txt(struct p2p_data *p2p)
142{
143 return p2p_state_txt(p2p->state);
144}
145
146
6df08d03
KV		 147struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p)
148{
149 return p2p ? p2p->p2ps_adv_list : NULL;
150}
151
152
6d908514
KV		 153void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr)
154{
155 if (p2p && intended_addr)
156 os_memcpy(p2p->intended_addr, intended_addr, ETH_ALEN);
157}
158
159
ec437d9e
JJ		 160u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
161{
162 struct p2p_device *dev = NULL;
163
164 if (!addr || !p2p)
165 return 0;
166
167 dev = p2p_get_device(p2p, addr);
168 if (dev)
169 return dev->wps_prov_info;
170 else
171 return 0;
172}
173
174
10531d21 175void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
ec437d9e
JJ		 176{
177 struct p2p_device *dev = NULL;
178
10531d21 179 if (!addr || !p2p)
ec437d9e
JJ		 180 return;
181
10531d21 182 dev = p2p_get_device(p2p, addr);
ec437d9e
JJ		 183 if (dev)
184 dev->wps_prov_info = 0;
185}
186
187
b22128ef
JM		 188void p2p_set_state(struct p2p_data *p2p, int new_state)
189{
ed496f13 190 p2p_dbg(p2p, "State %s -> %s",
b22128ef
JM		 191 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
192 p2p->state = new_state;
e3bd6e9d
IP		 193
194 if (new_state == P2P_IDLE && p2p->pending_channel) {
195 p2p_dbg(p2p, "Apply change in listen channel");
196 p2p->cfg->reg_class = p2p->pending_reg_class;
197 p2p->cfg->channel = p2p->pending_channel;
198 p2p->pending_reg_class = 0;
199 p2p->pending_channel = 0;
200 }
b22128ef
JM		 201}
202
203
204void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
205{
ed496f13 206 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
b22128ef
JM		 207 p2p_state_txt(p2p->state), sec, usec);
208 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
209 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
210}
211
212
213void p2p_clear_timeout(struct p2p_data *p2p)
214{
ed496f13 215 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 216 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
217}
218
219
8c00fd00 220void p2p_go_neg_failed(struct p2p_data *p2p, int status)
b22128ef
JM		 221{
222 struct p2p_go_neg_results res;
8c00fd00
JM		 223 struct p2p_device *peer = p2p->go_neg_peer;
224
225 if (!peer)
226 return;
227
0c6eee8b 228 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
9d118320
RR		 229 if (p2p->state != P2P_SEARCH) {
230 /*
231 * Clear timeouts related to GO Negotiation if no new p2p_find
232 * has been started.
233 */
234 p2p_clear_timeout(p2p);
235 p2p_set_state(p2p, P2P_IDLE);
236 }
8c00fd00
JM		 237
238 peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
239 peer->wps_method = WPS_NOT_READY;
240 peer->oob_pw_id = 0;
241 wpabuf_free(peer->go_neg_conf);
242 peer->go_neg_conf = NULL;
b22128ef
JM		 243 p2p->go_neg_peer = NULL;
244
245 os_memset(&res, 0, sizeof(res));
246 res.status = status;
8c00fd00
JM		 247 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
248 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
b22128ef
JM		 249 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
250}
251
252
96beff11 253static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
b22128ef
JM		 254{
255 unsigned int r, tu;
256 int freq;
257 struct wpabuf *ies;
258
ed496f13 259 p2p_dbg(p2p, "Starting short listen state (state=%s)",
b22128ef
JM		 260 p2p_state_txt(p2p->state));
261
5661bd0f
JJ		 262 if (p2p->pending_listen_freq) {
263 /* We have a pending p2p_listen request */
264 p2p_dbg(p2p, "p2p_listen command pending already");
265 return;
266 }
267
9ccd9165 268 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 269 if (freq < 0) {
ed496f13 270 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 271 return;
272 }
273
df2508d7
JM		 274 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
275 r = 0;
b22128ef
JM		 276 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
277 p2p->min_disc_int) * 100;
96beff11
JM		 278 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
279 tu = p2p->max_disc_tu;
280 if (!dev_disc && tu < 100)
281 tu = 100; /* Need to wait in non-device discovery use cases */
282 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
283 tu = p2p->cfg->max_listen * 1000 / 1024;
284
285 if (tu == 0) {
ed496f13 286 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
96beff11
JM		 287 p2p_set_timeout(p2p, 0, 0);
288 return;
289 }
b22128ef 290
e12c4004 291 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
b22128ef
JM		 292 if (ies == NULL)
293 return;
294
5661bd0f
JJ		 295 p2p->pending_listen_freq = freq;
296 p2p->pending_listen_sec = 0;
297 p2p->pending_listen_usec = 1024 * tu;
298
b22128ef
JM		 299 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
300 ies) < 0) {
ed496f13 301 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 302 p2p->pending_listen_freq = 0;
303 }
304 wpabuf_free(ies);
305}
306
307
308int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
309{
310 int freq;
311 struct wpabuf *ies;
312
ed496f13 313 p2p_dbg(p2p, "Going to listen(only) state");
b22128ef 314
5661bd0f
JJ		 315 if (p2p->pending_listen_freq) {
316 /* We have a pending p2p_listen request */
317 p2p_dbg(p2p, "p2p_listen command pending already");
318 return -1;
319 }
320
9ccd9165 321 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
b22128ef 322 if (freq < 0) {
ed496f13 323 p2p_dbg(p2p, "Unknown regulatory class/channel");
b22128ef
JM		 324 return -1;
325 }
326
b22128ef
JM		 327 p2p->pending_listen_sec = timeout / 1000;
328 p2p->pending_listen_usec = (timeout % 1000) * 1000;
329
330 if (p2p->p2p_scan_running) {
5b9cecaf 331 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
ed496f13 332 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
d9bdba9f
JM		 333 return 0;
334 }
ed496f13 335 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
b22128ef
JM		 336 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
337 return 0;
338 }
339
e12c4004 340 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
b22128ef
JM		 341 if (ies == NULL)
342 return -1;
343
5661bd0f
JJ		 344 p2p->pending_listen_freq = freq;
345
b22128ef 346 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
ed496f13 347 p2p_dbg(p2p, "Failed to start listen mode");
b22128ef
JM		 348 p2p->pending_listen_freq = 0;
349 wpabuf_free(ies);
350 return -1;
351 }
352 wpabuf_free(ies);
353
354 p2p_set_state(p2p, P2P_LISTEN_ONLY);
355
356 return 0;
357}
358
359
360static void p2p_device_clear_reported(struct p2p_data *p2p)
361{
362 struct p2p_device *dev;
44abecbf 363 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b22128ef 364 dev->flags &= ~P2P_DEV_REPORTED;
44abecbf
JM		 365 dev->sd_reqs = 0;
366 }
b22128ef
JM		 367}
368
369
370/**
371 * p2p_get_device - Fetch a peer entry
372 * @p2p: P2P module context from p2p_init()
373 * @addr: P2P Device Address of the peer
374 * Returns: Pointer to the device entry or %NULL if not found
375 */
376struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
377{
378 struct p2p_device *dev;
379 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
c5db8e51 380 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
b22128ef
JM		 381 return dev;
382 }
383 return NULL;
384}
385
386
387/**
388 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
389 * @p2p: P2P module context from p2p_init()
390 * @addr: P2P Interface Address of the peer
391 * Returns: Pointer to the device entry or %NULL if not found
392 */
393struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
394 const u8 *addr)
395{
396 struct p2p_device *dev;
397 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
398 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
399 return dev;
400 }
401 return NULL;
402}
403
404
405/**
406 * p2p_create_device - Create a peer entry
407 * @p2p: P2P module context from p2p_init()
408 * @addr: P2P Device Address of the peer
409 * Returns: Pointer to the device entry or %NULL on failure
410 *
411 * If there is already an entry for the peer, it will be returned instead of
412 * creating a new one.
413 */
414static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
415 const u8 *addr)
416{
417 struct p2p_device *dev, *oldest = NULL;
418 size_t count = 0;
419
420 dev = p2p_get_device(p2p, addr);
421 if (dev)
422 return dev;
423
424 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
425 count++;
426 if (oldest == NULL ||
acb69cec 427 os_reltime_before(&dev->last_seen, &oldest->last_seen))
b22128ef
JM		 428 oldest = dev;
429 }
430 if (count + 1 > p2p->cfg->max_peers && oldest) {
ed496f13 431 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
b22128ef
JM		 432 dl_list_del(&oldest->list);
433 p2p_device_free(p2p, oldest);
434 }
435
436 dev = os_zalloc(sizeof(*dev));
437 if (dev == NULL)
438 return NULL;
439 dl_list_add(&p2p->devices, &dev->list);
c5db8e51 440 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
b22128ef
JM		 441
442 return dev;
443}
444
445
446static void p2p_copy_client_info(struct p2p_device *dev,
447 struct p2p_client_info *cli)
448{
5d1d69a1
HW		 449 p2p_copy_filter_devname(dev->info.device_name,
450 sizeof(dev->info.device_name),
451 cli->dev_name, cli->dev_name_len);
c5db8e51
KRK		 452 dev->info.dev_capab = cli->dev_capab;
453 dev->info.config_methods = cli->config_methods;
454 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
e57ae6e1
JMB		 455 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
456 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
457 dev->info.wps_sec_dev_type_list_len);
b22128ef
JM		 458}
459
460
461static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
462 const u8 *go_interface_addr, int freq,
4e8817f7
AO		 463 const u8 *gi, size_t gi_len,
464 struct os_reltime *rx_time)
b22128ef
JM		 465{
466 struct p2p_group_info info;
467 size_t c;
468 struct p2p_device *dev;
469
470 if (gi == NULL)
471 return 0;
472
473 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
474 return -1;
475
476 /*
477 * Clear old data for this group; if the devices are still in the
478 * group, the information will be restored in the loop following this.
479 */
480 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
b5472a45 481 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
b22128ef
JM		 482 ETH_ALEN) == 0) {
483 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
484 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
485 }
486 }
487
488 for (c = 0; c < info.num_clients; c++) {
489 struct p2p_client_info *cli = &info.client[c];
2f0c8936
MK		 490 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
491 ETH_ALEN) == 0)
492 continue; /* ignore our own entry */
b22128ef
JM		 493 dev = p2p_get_device(p2p, cli->p2p_device_addr);
494 if (dev) {
b22128ef 495 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
f33bc035
JM		 496 P2P_DEV_PROBE_REQ_ONLY)) {
497 /*
498 * Update information since we have not
499 * received this directly from the client.
500 */
b22128ef 501 p2p_copy_client_info(dev, cli);
f33bc035
JM		 502 } else {
503 /*
504 * Need to update P2P Client Discoverability
505 * flag since it is valid only in P2P Group
506 * Info attribute.
507 */
508 dev->info.dev_capab &=
509 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
510 dev->info.dev_capab |=
511 cli->dev_capab &
512 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
513 }
b22128ef
JM		 514 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
515 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
516 }
517 } else {
518 dev = p2p_create_device(p2p, cli->p2p_device_addr);
519 if (dev == NULL)
520 continue;
521 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
522 p2p_copy_client_info(dev, cli);
523 dev->oper_freq = freq;
c5db8e51
KRK		 524 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
525 dev->info.p2p_device_addr,
8fd7dc1b
JB		 526 &dev->info, 1);
527 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 528 }
529
530 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
531 ETH_ALEN);
4e8817f7 532 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
b22128ef
JM		 533 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
534 os_memcpy(dev->member_in_go_iface, go_interface_addr,
535 ETH_ALEN);
8f524099 536 dev->flags |= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT;
b22128ef
JM		 537 }
538
539 return 0;
540}
541
542
ed496f13
JM		 543static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
544 int probe_req, const struct p2p_message *msg)
b67d0d9e
JM		 545{
546 os_memcpy(dev->info.device_name, msg->device_name,
547 sizeof(dev->info.device_name));
548
549 if (msg->manufacturer &&
550 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
551 os_memset(dev->info.manufacturer, 0,
552 sizeof(dev->info.manufacturer));
553 os_memcpy(dev->info.manufacturer, msg->manufacturer,
554 msg->manufacturer_len);
555 }
556
557 if (msg->model_name &&
558 msg->model_name_len < sizeof(dev->info.model_name)) {
559 os_memset(dev->info.model_name, 0,
560 sizeof(dev->info.model_name));
561 os_memcpy(dev->info.model_name, msg->model_name,
562 msg->model_name_len);
563 }
564
565 if (msg->model_number &&
566 msg->model_number_len < sizeof(dev->info.model_number)) {
567 os_memset(dev->info.model_number, 0,
568 sizeof(dev->info.model_number));
569 os_memcpy(dev->info.model_number, msg->model_number,
570 msg->model_number_len);
571 }
572
573 if (msg->serial_number &&
574 msg->serial_number_len < sizeof(dev->info.serial_number)) {
575 os_memset(dev->info.serial_number, 0,
576 sizeof(dev->info.serial_number));
577 os_memcpy(dev->info.serial_number, msg->serial_number,
578 msg->serial_number_len);
579 }
580
581 if (msg->pri_dev_type)
582 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
583 sizeof(dev->info.pri_dev_type));
584 else if (msg->wps_pri_dev_type)
585 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
586 sizeof(dev->info.pri_dev_type));
587
588 if (msg->wps_sec_dev_type_list) {
589 os_memcpy(dev->info.wps_sec_dev_type_list,
590 msg->wps_sec_dev_type_list,
591 msg->wps_sec_dev_type_list_len);
592 dev->info.wps_sec_dev_type_list_len =
593 msg->wps_sec_dev_type_list_len;
594 }
595
596 if (msg->capability) {
f33bc035
JM		 597 /*
598 * P2P Client Discoverability bit is reserved in all frames
599 * that use this function, so do not change its value here.
600 */
601 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
602 dev->info.dev_capab |= msg->capability[0] &
603 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
b67d0d9e
JM		 604 dev->info.group_capab = msg->capability[1];
605 }
606
607 if (msg->ext_listen_timing) {
608 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
609 dev->ext_listen_interval =
610 WPA_GET_LE16(msg->ext_listen_timing + 2);
611 }
612
613 if (!probe_req) {
954ee628
JM		 614 u16 new_config_methods;
615 new_config_methods = msg->config_methods ?
b67d0d9e 616 msg->config_methods : msg->wps_config_methods;
954ee628
JM		 617 if (new_config_methods &&
618 dev->info.config_methods != new_config_methods) {
ed496f13
JM		 619 p2p_dbg(p2p, "Update peer " MACSTR
620 " config_methods 0x%x -> 0x%x",
621 MAC2STR(dev->info.p2p_device_addr),
622 dev->info.config_methods,
623 new_config_methods);
954ee628
JM		 624 dev->info.config_methods = new_config_methods;
625 }
b67d0d9e
JM		 626 }
627}
628
629
71a0e395
JM		 630static void p2p_update_peer_vendor_elems(struct p2p_device *dev, const u8 *ies,
631 size_t ies_len)
632{
633 const u8 *pos, *end;
634 u8 id, len;
635
636 wpabuf_free(dev->info.vendor_elems);
637 dev->info.vendor_elems = NULL;
638
639 end = ies + ies_len;
640
d6ee858c 641 for (pos = ies; end - pos > 1; pos += len) {
71a0e395
JM		 642 id = *pos++;
643 len = *pos++;
644
d6ee858c 645 if (len > end - pos)
71a0e395
JM		 646 break;
647
648 if (id != WLAN_EID_VENDOR_SPECIFIC || len < 3)
649 continue;
650
651 if (len >= 4) {
652 u32 type = WPA_GET_BE32(pos);
653
654 if (type == WPA_IE_VENDOR_TYPE ||
655 type == WMM_IE_VENDOR_TYPE ||
656 type == WPS_IE_VENDOR_TYPE ||
657 type == P2P_IE_VENDOR_TYPE ||
658 type == WFD_IE_VENDOR_TYPE)
659 continue;
660 }
661
662 /* Unknown vendor element - make raw IE data available */
663 if (wpabuf_resize(&dev->info.vendor_elems, 2 + len) < 0)
664 break;
665 wpabuf_put_data(dev->info.vendor_elems, pos - 2, 2 + len);
666 }
667}
668
669
4b32f6a5
JT		 670static int p2p_compare_wfd_info(struct p2p_device *dev,
671 const struct p2p_message *msg)
672{
673 if (dev->info.wfd_subelems && msg->wfd_subelems) {
674 if (dev->info.wfd_subelems->used != msg->wfd_subelems->used)
675 return 1;
676
677 return os_memcmp(dev->info.wfd_subelems->buf,
678 msg->wfd_subelems->buf,
679 dev->info.wfd_subelems->used);
680 }
681 if (dev->info.wfd_subelems || msg->wfd_subelems)
682 return 1;
683
684 return 0;
685}
686
687
b22128ef 688/**
c98b83f2 689 * p2p_add_device - Add peer entries based on scan results or P2P frames
b22128ef
JM		 690 * @p2p: P2P module context from p2p_init()
691 * @addr: Source address of Beacon or Probe Response frame (may be either
692 * P2P Device Address or P2P Interface Address)
693 * @level: Signal level (signal strength of the received frame from the peer)
694 * @freq: Frequency on which the Beacon or Probe Response frame was received
c5f10e80 695 * @rx_time: Time when the result was received
b22128ef
JM		 696 * @ies: IEs from the Beacon or Probe Response frame
697 * @ies_len: Length of ies buffer in octets
c98b83f2 698 * @scan_res: Whether this was based on scan results
b22128ef
JM		 699 * Returns: 0 on success, -1 on failure
700 *
701 * If the scan result is for a GO, the clients in the group will also be added
17bef1e9
AC		 702 * to the peer table. This function can also be used with some other frames
703 * like Provision Discovery Request that contains P2P Capability and P2P Device
704 * Info attributes.
b22128ef 705 */
3dfd0484 706int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
acb69cec 707 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 708 size_t ies_len, int scan_res)
b22128ef
JM		 709{
710 struct p2p_device *dev;
711 struct p2p_message msg;
712 const u8 *p2p_dev_addr;
4b32f6a5 713 int wfd_changed;
0a6c9dc7 714 int dev_name_changed;
6f2c0607 715 int i;
acb69cec 716 struct os_reltime time_now;
b22128ef
JM		 717
718 os_memset(&msg, 0, sizeof(msg));
719 if (p2p_parse_ies(ies, ies_len, &msg)) {
ed496f13 720 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
b22128ef
JM		 721 p2p_parse_free(&msg);
722 return -1;
723 }
724
725 if (msg.p2p_device_addr)
726 p2p_dev_addr = msg.p2p_device_addr;
727 else if (msg.device_id)
728 p2p_dev_addr = msg.device_id;
729 else {
ed496f13 730 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
b22128ef
JM		 731 p2p_parse_free(&msg);
732 return -1;
733 }
734
80c9582a
JM		 735 if (!is_zero_ether_addr(p2p->peer_filter) &&
736 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
ed496f13
JM		 737 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
738 " due to peer filter", MAC2STR(p2p_dev_addr));
f96c1d76 739 p2p_parse_free(&msg);
80c9582a
JM		 740 return 0;
741 }
742
b22128ef
JM		 743 dev = p2p_create_device(p2p, p2p_dev_addr);
744 if (dev == NULL) {
745 p2p_parse_free(&msg);
746 return -1;
747 }
3dfd0484 748
c5f10e80 749 if (rx_time == NULL) {
acb69cec 750 os_get_reltime(&time_now);
c5f10e80
JM		 751 rx_time = &time_now;
752 }
3dfd0484
YD		 753
754 /*
755 * Update the device entry only if the new peer
8f524099
AO		 756 * entry is newer than the one previously stored, or if
757 * the device was previously seen as a P2P Client in a group
758 * and the new entry isn't older than a threshold.
3dfd0484 759 */
c5f10e80 760 if (dev->last_seen.sec > 0 &&
8f524099
AO		 761 os_reltime_before(rx_time, &dev->last_seen) &&
762 (!(dev->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT) ||
763 os_reltime_expired(&dev->last_seen, rx_time,
764 P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD))) {
765 p2p_dbg(p2p,
766 "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
c5f10e80
JM		 767 (unsigned int) rx_time->sec,
768 (unsigned int) rx_time->usec,
769 (unsigned int) dev->last_seen.sec,
8f524099
AO		 770 (unsigned int) dev->last_seen.usec,
771 dev->flags);
f96c1d76 772 p2p_parse_free(&msg);
3dfd0484 773 return -1;
f96c1d76 774 }
3dfd0484 775
acb69cec 776 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
3dfd0484 777
8f524099
AO		 778 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY |
779 P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT);
b22128ef
JM		 780
781 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
782 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
783 if (msg.ssid &&
9ed4eee3 784 msg.ssid[1] <= sizeof(dev->oper_ssid) &&
b22128ef
JM		 785 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
786 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
787 != 0)) {
788 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
789 dev->oper_ssid_len = msg.ssid[1];
790 }
791
0f282c76
NC		 792 wpabuf_free(dev->info.p2ps_instance);
793 dev->info.p2ps_instance = NULL;
794 if (msg.adv_service_instance && msg.adv_service_instance_len)
095b3c40
BG		 795 dev->info.p2ps_instance = wpabuf_alloc_copy(
796 msg.adv_service_instance, msg.adv_service_instance_len);
095b3c40 797
b22128ef
JM		 798 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
799 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
800 int ds_freq;
801 if (*msg.ds_params == 14)
802 ds_freq = 2484;
803 else
804 ds_freq = 2407 + *msg.ds_params * 5;
805 if (freq != ds_freq) {
ed496f13 806 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
b22128ef
JM		 807 freq, ds_freq);
808 freq = ds_freq;
809 }
810 }
811
c98b83f2 812 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
ed496f13
JM		 813 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
814 MACSTR " %d -> %d MHz (DS param %d)",
c5db8e51
KRK		 815 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
816 freq, msg.ds_params ? *msg.ds_params : -1);
b22128ef 817 }
c98b83f2
JM		 818 if (scan_res) {
819 dev->listen_freq = freq;
820 if (msg.group_info)
821 dev->oper_freq = freq;
822 }
6402fc43 823 dev->info.level = level;
b22128ef 824
bbad185c
AO		 825 dev_name_changed = os_strncmp(dev->info.device_name, msg.device_name,
826 WPS_DEV_NAME_MAX_LEN) != 0;
0a6c9dc7 827
ed496f13 828 p2p_copy_wps_info(p2p, dev, 0, &msg);
e57ae6e1 829
10c5d2a5 830 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 831 wpabuf_free(dev->info.wps_vendor_ext[i]);
832 dev->info.wps_vendor_ext[i] = NULL;
833 }
834
10c5d2a5 835 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 836 if (msg.wps_vendor_ext[i] == NULL)
837 break;
838 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
839 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
840 if (dev->info.wps_vendor_ext[i] == NULL)
841 break;
842 }
843
4b32f6a5
JT		 844 wfd_changed = p2p_compare_wfd_info(dev, &msg);
845
9a431d49 846 if (wfd_changed) {
9675ce35 847 wpabuf_free(dev->info.wfd_subelems);
9a431d49
MH		 848 if (msg.wfd_subelems)
849 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
850 else
851 dev->info.wfd_subelems = NULL;
9675ce35
JM		 852 }
853
c98b83f2
JM		 854 if (scan_res) {
855 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
4e8817f7
AO		 856 msg.group_info, msg.group_info_len,
857 rx_time);
c98b83f2 858 }
b22128ef
JM		 859
860 p2p_parse_free(&msg);
861
71a0e395
JM		 862 p2p_update_peer_vendor_elems(dev, ies, ies_len);
863
095b3c40 864 if (dev->flags & P2P_DEV_REPORTED && !wfd_changed &&
0a6c9dc7 865 !dev_name_changed &&
095b3c40
BG		 866 (!msg.adv_service_instance ||
867 (dev->flags & P2P_DEV_P2PS_REPORTED)))
b22128ef
JM		 868 return 0;
869
ed496f13
JM		 870 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
871 freq, (unsigned int) rx_time->sec,
c5f10e80 872 (unsigned int) rx_time->usec);
b22128ef 873 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 874 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 875 return 0;
876 }
8fd7dc1b 877
8b2b2a70
JM		 878 if (dev->info.config_methods == 0 &&
879 (freq == 2412 || freq == 2437 || freq == 2462)) {
880 /*
881 * If we have only seen a Beacon frame from a GO, we do not yet
882 * know what WPS config methods it supports. Since some
883 * applications use config_methods value from P2P-DEVICE-FOUND
884 * events, postpone reporting this peer until we've fully
885 * discovered its capabilities.
886 *
887 * At least for now, do this only if the peer was detected on
888 * one of the social channels since that peer can be easily be
889 * found again and there are no limitations of having to use
890 * passive scan on this channels, so this can be done through
891 * Probe Response frame that includes the config_methods
892 * information.
893 */
ed496f13
JM		 894 p2p_dbg(p2p, "Do not report peer " MACSTR
895 " with unknown config methods", MAC2STR(addr));
8b2b2a70
JM		 896 return 0;
897 }
898
8fd7dc1b
JB		 899 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
900 !(dev->flags & P2P_DEV_REPORTED_ONCE));
901 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef 902
095b3c40
BG		 903 if (msg.adv_service_instance)
904 dev->flags |= P2P_DEV_P2PS_REPORTED;
905
b22128ef
JM		 906 return 0;
907}
908
909
910static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
911{
6f2c0607
JMB		 912 int i;
913
5cfda25e
JJ		 914 if (p2p->go_neg_peer == dev) {
915 /*
916 * If GO Negotiation is in progress, report that it has failed.
917 */
8c00fd00 918 p2p_go_neg_failed(p2p, -1);
5cfda25e 919 }
b22128ef
JM		 920 if (p2p->invite_peer == dev)
921 p2p->invite_peer = NULL;
922 if (p2p->sd_peer == dev)
923 p2p->sd_peer = NULL;
924 if (p2p->pending_client_disc_go == dev)
925 p2p->pending_client_disc_go = NULL;
926
f5fc6032
AC		 927 /* dev_lost() device, but only if it was previously dev_found() */
928 if (dev->flags & P2P_DEV_REPORTED_ONCE)
929 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
930 dev->info.p2p_device_addr);
56eeb8f2 931
10c5d2a5 932 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
6f2c0607
JMB		 933 wpabuf_free(dev->info.wps_vendor_ext[i]);
934 dev->info.wps_vendor_ext[i] = NULL;
935 }
936
9675ce35 937 wpabuf_free(dev->info.wfd_subelems);
71a0e395 938 wpabuf_free(dev->info.vendor_elems);
0e0e1e56 939 wpabuf_free(dev->go_neg_conf);
095b3c40 940 wpabuf_free(dev->info.p2ps_instance);
9675ce35 941
b22128ef
JM		 942 os_free(dev);
943}
944
945
946static int p2p_get_next_prog_freq(struct p2p_data *p2p)
947{
948 struct p2p_channels *c;
949 struct p2p_reg_class *cla;
950 size_t cl, ch;
951 int found = 0;
952 u8 reg_class;
953 u8 channel;
954 int freq;
955
956 c = &p2p->cfg->channels;
957 for (cl = 0; cl < c->reg_classes; cl++) {
958 cla = &c->reg_class[cl];
959 if (cla->reg_class != p2p->last_prog_scan_class)
960 continue;
961 for (ch = 0; ch < cla->channels; ch++) {
962 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
963 found = 1;
964 break;
965 }
966 }
967 if (found)
968 break;
969 }
970
971 if (!found) {
972 /* Start from beginning */
973 reg_class = c->reg_class[0].reg_class;
974 channel = c->reg_class[0].channel[0];
975 } else {
976 /* Pick the next channel */
977 ch++;
978 if (ch == cla->channels) {
979 cl++;
980 if (cl == c->reg_classes)
981 cl = 0;
982 ch = 0;
983 }
984 reg_class = c->reg_class[cl].reg_class;
985 channel = c->reg_class[cl].channel[ch];
986 }
987
9ccd9165 988 freq = p2p_channel_to_freq(reg_class, channel);
ed496f13 989 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
b22128ef
JM		 990 reg_class, channel, freq);
991 p2p->last_prog_scan_class = reg_class;
992 p2p->last_prog_scan_chan = channel;
993
994 if (freq == 2412 || freq == 2437 || freq == 2462)
995 return 0; /* No need to add social channels */
996 return freq;
997}
998
999
1000static void p2p_search(struct p2p_data *p2p)
1001{
1002 int freq = 0;
1003 enum p2p_scan_type type;
360182ed 1004 u16 pw_id = DEV_PW_DEFAULT;
99fcd404 1005 int res;
b22128ef
JM		 1006
1007 if (p2p->drv_in_listen) {
ed496f13 1008 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
b22128ef
JM		 1009 return;
1010 }
1011 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1012
2c0ac6d6
JM		 1013 if (p2p->find_pending_full &&
1014 (p2p->find_type == P2P_FIND_PROGRESSIVE ||
1015 p2p->find_type == P2P_FIND_START_WITH_FULL)) {
1016 type = P2P_SCAN_FULL;
1017 p2p_dbg(p2p, "Starting search (pending full scan)");
1018 p2p->find_pending_full = 0;
1019 } else if ((p2p->find_type == P2P_FIND_PROGRESSIVE &&
d3bb082a
JM		 1020 (freq = p2p_get_next_prog_freq(p2p)) > 0) ||
1021 (p2p->find_type == P2P_FIND_START_WITH_FULL &&
1022 (freq = p2p->find_specified_freq) > 0)) {
b22128ef 1023 type = P2P_SCAN_SOCIAL_PLUS_ONE;
ed496f13 1024 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
b22128ef
JM		 1025 } else {
1026 type = P2P_SCAN_SOCIAL;
ed496f13 1027 p2p_dbg(p2p, "Starting search");
b22128ef
JM		 1028 }
1029
99fcd404
JM		 1030 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
1031 p2p->num_req_dev_types, p2p->req_dev_types,
1032 p2p->find_dev_id, pw_id);
1033 if (res < 0) {
b951a974 1034 p2p_dbg(p2p, "Scan request schedule failed");
b22128ef
JM		 1035 p2p_continue_find(p2p);
1036 }
1037}
1038
1039
1040static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
1041{
1042 struct p2p_data *p2p = eloop_ctx;
ed496f13 1043 p2p_dbg(p2p, "Find timeout -> stop");
b22128ef
JM		 1044 p2p_stop_find(p2p);
1045}
1046
1047
b951a974
SD		 1048void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status)
1049{
1050 if (status != 0) {
1051 p2p_dbg(p2p, "Scan request failed");
1052 /* Do continue find even for the first p2p_find_scan */
1053 p2p_continue_find(p2p);
1054 } else {
1055 p2p_dbg(p2p, "Running p2p_scan");
1056 p2p->p2p_scan_running = 1;
1057 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1058 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1059 p2p, NULL);
1060 }
1061}
1062
1063
b22128ef
JM		 1064static int p2p_run_after_scan(struct p2p_data *p2p)
1065{
1066 struct p2p_device *dev;
1067 enum p2p_after_scan op;
1068
1069 op = p2p->start_after_scan;
1070 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1071 switch (op) {
1072 case P2P_AFTER_SCAN_NOTHING:
1073 break;
1074 case P2P_AFTER_SCAN_LISTEN:
ed496f13 1075 p2p_dbg(p2p, "Start previously requested Listen state");
b22128ef
JM		 1076 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
1077 p2p->pending_listen_usec / 1000);
1078 return 1;
1079 case P2P_AFTER_SCAN_CONNECT:
ed496f13 1080 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
b22128ef
JM		 1081 MAC2STR(p2p->after_scan_peer));
1082 dev = p2p_get_device(p2p, p2p->after_scan_peer);
1083 if (dev == NULL) {
ed496f13 1084 p2p_dbg(p2p, "Peer not known anymore");
b22128ef
JM		 1085 break;
1086 }
1087 p2p_connect_send(p2p, dev);
1088 return 1;
1089 }
1090
1091 return 0;
1092}
1093
1094
b22128ef
JM		 1095static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1096{
1097 struct p2p_data *p2p = eloop_ctx;
1098 int running;
ed496f13 1099 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
b22128ef
JM		 1100 running = p2p->p2p_scan_running;
1101 /* Make sure we recover from missed scan results callback */
1102 p2p->p2p_scan_running = 0;
1103
1104 if (running)
1105 p2p_run_after_scan(p2p);
1106}
1107
1108
046ef4aa
JMB		 1109static void p2p_free_req_dev_types(struct p2p_data *p2p)
1110{
1111 p2p->num_req_dev_types = 0;
1112 os_free(p2p->req_dev_types);
1113 p2p->req_dev_types = NULL;
1114}
1115
1116
51775096
BG		 1117static int p2ps_gen_hash(struct p2p_data *p2p, const char *str, u8 *hash)
1118{
1119 u8 buf[SHA256_MAC_LEN];
1120 char str_buf[256];
1121 const u8 *adv_array;
1122 size_t i, adv_len;
1123
1124 if (!str || !hash)
1125 return 0;
1126
1127 if (!str[0]) {
1128 os_memcpy(hash, p2p->wild_card_hash, P2PS_HASH_LEN);
1129 return 1;
1130 }
1131
1132 adv_array = (u8 *) str_buf;
1133 adv_len = os_strlen(str);
f33a31b0
JM		 1134 if (adv_len >= sizeof(str_buf))
1135 return 0;
51775096 1136
65866555 1137 for (i = 0; i < adv_len; i++) {
51775096
BG		 1138 if (str[i] >= 'A' && str[i] <= 'Z')
1139 str_buf[i] = str[i] - 'A' + 'a';
1140 else
1141 str_buf[i] = str[i];
1142 }
1143
1144 if (sha256_vector(1, &adv_array, &adv_len, buf))
1145 return 0;
1146
1147 os_memcpy(hash, buf, P2PS_HASH_LEN);
1148 return 1;
1149}
1150
1151
b22128ef 1152int p2p_find(struct p2p_data *p2p, unsigned int timeout,
046ef4aa 1153 enum p2p_discovery_type type,
6d92fa6e 1154 unsigned int num_req_dev_types, const u8 *req_dev_types,
51775096 1155 const u8 *dev_id, unsigned int search_delay,
fa9f381f 1156 u8 seek_count, const char **seek, int freq)
b22128ef
JM		 1157{
1158 int res;
f2a6ac63 1159 struct os_reltime start;
b22128ef 1160
ed496f13 1161 p2p_dbg(p2p, "Starting find (type=%d)", type);
b22128ef 1162 if (p2p->p2p_scan_running) {
ed496f13 1163 p2p_dbg(p2p, "p2p_scan is already running");
b22128ef 1164 }
046ef4aa
JMB		 1165
1166 p2p_free_req_dev_types(p2p);
1167 if (req_dev_types && num_req_dev_types) {
a1f11e34
JB		 1168 p2p->req_dev_types = os_memdup(req_dev_types,
1169 num_req_dev_types *
046ef4aa
JMB		 1170 WPS_DEV_TYPE_LEN);
1171 if (p2p->req_dev_types == NULL)
1172 return -1;
046ef4aa
JMB		 1173 p2p->num_req_dev_types = num_req_dev_types;
1174 }
1175
6d92fa6e
JM		 1176 if (dev_id) {
1177 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1178 p2p->find_dev_id = p2p->find_dev_id_buf;
1179 } else
1180 p2p->find_dev_id = NULL;
1181
51775096
BG		 1182 if (seek_count == 0 || !seek) {
1183 /* Not an ASP search */
1184 p2p->p2ps_seek = 0;
1185 } else if (seek_count == 1 && seek && (!seek[0] || !seek[0][0])) {
1186 /*
1187 * An empty seek string means no hash values, but still an ASP
1188 * search.
1189 */
24533f7e 1190 p2p_dbg(p2p, "ASP search");
51775096
BG		 1191 p2p->p2ps_seek_count = 0;
1192 p2p->p2ps_seek = 1;
1193 } else if (seek && seek_count <= P2P_MAX_QUERY_HASH) {
1194 u8 buf[P2PS_HASH_LEN];
e12c4004 1195 int i, count = 0;
51775096 1196
51775096
BG		 1197 for (i = 0; i < seek_count; i++) {
1198 if (!p2ps_gen_hash(p2p, seek[i], buf))
1199 continue;
1200
24533f7e
JM		 1201 p2p_dbg(p2p, "Seek service %s hash " MACSTR,
1202 seek[i], MAC2STR(buf));
e12c4004
MS		 1203 os_memcpy(&p2p->p2ps_seek_hash[count * P2PS_HASH_LEN],
1204 buf, P2PS_HASH_LEN);
1205 count++;
51775096 1206 }
e12c4004
MS		 1207
1208 p2p->p2ps_seek_count = count;
51775096
BG		 1209 p2p->p2ps_seek = 1;
1210 } else {
1211 p2p->p2ps_seek_count = 0;
1212 p2p->p2ps_seek = 1;
1213 }
1214
1215 /* Special case to perform wildcard search */
1216 if (p2p->p2ps_seek_count == 0 && p2p->p2ps_seek) {
1217 p2p->p2ps_seek_count = 1;
e12c4004
MS		 1218 os_memcpy(&p2p->p2ps_seek_hash, p2p->wild_card_hash,
1219 P2PS_HASH_LEN);
51775096
BG		 1220 }
1221
b22128ef
JM		 1222 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1223 p2p_clear_timeout(p2p);
e79eb0c6
JM		 1224 if (p2p->pending_listen_freq) {
1225 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_find");
1226 p2p->pending_listen_freq = 0;
1227 }
b22128ef 1228 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
2c0ac6d6 1229 p2p->find_pending_full = 0;
b22128ef 1230 p2p->find_type = type;
d3bb082a
JM		 1231 if (freq != 2412 && freq != 2437 && freq != 2462 && freq != 60480)
1232 p2p->find_specified_freq = freq;
1233 else
1234 p2p->find_specified_freq = 0;
b22128ef 1235 p2p_device_clear_reported(p2p);
cba9ebfd 1236 os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
b22128ef 1237 p2p_set_state(p2p, P2P_SEARCH);
37448ede
JM		 1238 p2p->search_delay = search_delay;
1239 p2p->in_search_delay = 0;
b22128ef 1240 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
39185dfa 1241 p2p->last_p2p_find_timeout = timeout;
b22128ef
JM		 1242 if (timeout)
1243 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1244 p2p, NULL);
f2a6ac63 1245 os_get_reltime(&start);
b22128ef
JM		 1246 switch (type) {
1247 case P2P_FIND_START_WITH_FULL:
fa9f381f
DN		 1248 if (freq > 0) {
1249 /*
1250 * Start with the specified channel and then move to
d3bb082a 1251 * scans for social channels and this specific channel.
fa9f381f
DN		 1252 */
1253 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx,
1254 P2P_SCAN_SPECIFIC, freq,
1255 p2p->num_req_dev_types,
1256 p2p->req_dev_types, dev_id,
1257 DEV_PW_DEFAULT);
1258 break;
1259 }
1260 /* fall through */
b22128ef 1261 case P2P_FIND_PROGRESSIVE:
046ef4aa
JMB		 1262 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1263 p2p->num_req_dev_types,
360182ed
JM		 1264 p2p->req_dev_types, dev_id,
1265 DEV_PW_DEFAULT);
b22128ef
JM		 1266 break;
1267 case P2P_FIND_ONLY_SOCIAL:
046ef4aa
JMB		 1268 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1269 p2p->num_req_dev_types,
360182ed
JM		 1270 p2p->req_dev_types, dev_id,
1271 DEV_PW_DEFAULT);
b22128ef
JM		 1272 break;
1273 default:
1274 return -1;
1275 }
1276
f2a6ac63
PK		 1277 if (!res)
1278 p2p->find_start = start;
1279
b951a974 1280 if (res != 0 && p2p->p2p_scan_running) {
1b5d4714
JM		 1281 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1282 /* wait for the previous p2p_scan to complete */
2c0ac6d6
JM		 1283 if (type == P2P_FIND_PROGRESSIVE ||
1284 (type == P2P_FIND_START_WITH_FULL && freq == 0))
1285 p2p->find_pending_full = 1;
825fb6b2 1286 res = 0; /* do not report failure */
b951a974 1287 } else if (res != 0) {
ed496f13 1288 p2p_dbg(p2p, "Failed to start p2p_scan");
0c96fd6d
JM		 1289 p2p_set_state(p2p, P2P_IDLE);
1290 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
b22128ef
JM		 1291 }
1292
1293 return res;
1294}
1295
1296
0b8889d8 1297void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
b22128ef 1298{
ed496f13 1299 p2p_dbg(p2p, "Stopping find");
b22128ef
JM		 1300 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1301 p2p_clear_timeout(p2p);
0cf12b32 1302 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
710ae9ac 1303 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
51775096
BG		 1304
1305 p2p->p2ps_seek_count = 0;
1306
b22128ef 1307 p2p_set_state(p2p, P2P_IDLE);
046ef4aa 1308 p2p_free_req_dev_types(p2p);
b22128ef 1309 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
3a2a7c3d 1310 if (p2p->go_neg_peer)
fb8984fd 1311 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef
JM		 1312 p2p->go_neg_peer = NULL;
1313 p2p->sd_peer = NULL;
1314 p2p->invite_peer = NULL;
1a9c618d 1315 p2p_stop_listen_for_freq(p2p, freq);
0d2f324d 1316 p2p->send_action_in_progress = 0;
1a9c618d
JM		 1317}
1318
1319
1320void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1321{
0b8889d8 1322 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
ed496f13 1323 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
0b8889d8
JM		 1324 return;
1325 }
1a9c618d
JM		 1326 if (p2p->in_listen) {
1327 p2p->in_listen = 0;
1328 p2p_clear_timeout(p2p);
1329 }
54b8f994
JM		 1330 if (p2p->drv_in_listen) {
1331 /*
1332 * The driver may not deliver callback to p2p_listen_end()
1333 * when the operation gets canceled, so clear the internal
1334 * variable that is tracking driver state.
1335 */
ed496f13 1336 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
54b8f994
JM		 1337 p2p->drv_in_listen = 0;
1338 }
b22128ef
JM		 1339 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1340}
1341
1342
0b5fb86a
SADR		 1343void p2p_stop_listen(struct p2p_data *p2p)
1344{
1345 if (p2p->state != P2P_LISTEN_ONLY) {
1346 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1347 return;
1348 }
1349
1350 p2p_stop_listen_for_freq(p2p, 0);
1351 p2p_set_state(p2p, P2P_IDLE);
1352}
1353
1354
0b8889d8
JM		 1355void p2p_stop_find(struct p2p_data *p2p)
1356{
5661bd0f 1357 p2p->pending_listen_freq = 0;
0b8889d8
JM		 1358 p2p_stop_find_for_freq(p2p, 0);
1359}
1360
1361
e28c226d
JM		 1362static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1363 unsigned int force_freq,
51e9f228 1364 unsigned int pref_freq, int go)
e28c226d
JM		 1365{
1366 u8 op_class, op_channel;
1367 unsigned int freq = force_freq ? force_freq : pref_freq;
1368
51e9f228
JM		 1369 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1370 force_freq, pref_freq, go);
9ccd9165 1371 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
ed496f13 1372 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
e28c226d
JM		 1373 return -1;
1374 }
1375
51e9f228
JM		 1376 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1377 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1378 op_channel))) {
ed496f13
JM		 1379 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1380 freq, op_class, op_channel);
e28c226d
JM		 1381 return -1;
1382 }
1383
1384 p2p->op_reg_class = op_class;
1385 p2p->op_channel = op_channel;
1386
1387 if (force_freq) {
1388 p2p->channels.reg_classes = 1;
1389 p2p->channels.reg_class[0].channels = 1;
1390 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1391 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1392 } else {
1393 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1394 sizeof(struct p2p_channels));
1395 }
1396
1397 return 0;
1398}
1399
1400
1401static void p2p_prepare_channel_best(struct p2p_data *p2p)
1402{
1403 u8 op_class, op_channel;
0c9fb14e 1404 const int op_classes_5ghz[] = { 124, 125, 115, 0 };
00043740 1405 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
384bdd02 1406 const int op_classes_vht[] = { 128, 0 };
e28c226d 1407
99d7c762
JM		 1408 p2p_dbg(p2p, "Prepare channel best");
1409
e28c226d
JM		 1410 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1411 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
9ccd9165
JM		 1412 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1413 == 0) {
ed496f13 1414 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
e28c226d
JM		 1415 p2p->op_reg_class = op_class;
1416 p2p->op_channel = op_channel;
1417 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1418 p2p_supported_freq(p2p, p2p->best_freq_5) &&
9ccd9165
JM		 1419 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1420 == 0) {
ed496f13 1421 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
e28c226d
JM		 1422 p2p->op_reg_class = op_class;
1423 p2p->op_channel = op_channel;
1424 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1425 p2p_supported_freq(p2p, p2p->best_freq_24) &&
9ccd9165
JM		 1426 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1427 &op_channel) == 0) {
ed496f13 1428 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
e28c226d
JM		 1429 p2p->op_reg_class = op_class;
1430 p2p->op_channel = op_channel;
6701fdc3
JM		 1431 } else if (p2p->cfg->num_pref_chan > 0 &&
1432 p2p_channels_includes(&p2p->cfg->channels,
1433 p2p->cfg->pref_chan[0].op_class,
1434 p2p->cfg->pref_chan[0].chan)) {
1435 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1436 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1437 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
384bdd02
JM		 1438 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1439 &p2p->op_reg_class, &p2p->op_channel) ==
1440 0) {
1441 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1442 p2p->op_reg_class, p2p->op_channel);
a30d50b3
JM		 1443 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1444 &p2p->op_reg_class, &p2p->op_channel) ==
1445 0) {
1446 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1447 p2p->op_reg_class, p2p->op_channel);
f2407107
JM		 1448 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1449 &p2p->op_reg_class, &p2p->op_channel) ==
1450 0) {
1451 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1452 p2p->op_reg_class, p2p->op_channel);
94b84bc7
AH		 1453 } else if (p2p_channels_includes(&p2p->cfg->channels,
1454 p2p->cfg->op_reg_class,
1455 p2p->cfg->op_channel)) {
99d7c762 1456 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
e28c226d
JM		 1457 p2p->op_reg_class = p2p->cfg->op_reg_class;
1458 p2p->op_channel = p2p->cfg->op_channel;
6ace13a9
JM		 1459 } else if (p2p_channel_random_social(&p2p->cfg->channels,
1460 &p2p->op_reg_class,
59fa2053
PK		 1461 &p2p->op_channel,
1462 NULL, NULL) == 0) {
1595eb93
AM		 1463 p2p_dbg(p2p, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1464 p2p->op_reg_class, p2p->op_channel);
94b84bc7 1465 } else {
6ace13a9
JM		 1466 /* Select any random available channel from the first available
1467 * operating class */
1468 p2p_channel_select(&p2p->cfg->channels, NULL,
1469 &p2p->op_reg_class,
1470 &p2p->op_channel);
1471 p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
1472 p2p->op_channel, p2p->op_reg_class);
e28c226d
JM		 1473 }
1474
1475 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1476 sizeof(struct p2p_channels));
1477}
1478
1479
a5830ede 1480/**
ebd32943 1481 * p2p_prepare_channel - Select operating channel for GO Negotiation or P2PS PD
a5830ede
JM		 1482 * @p2p: P2P module context from p2p_init()
1483 * @dev: Selected peer device
1484 * @force_freq: Forced frequency in MHz or 0 if not forced
1485 * @pref_freq: Preferred frequency in MHz or 0 if no preference
51e9f228 1486 * @go: Whether the local end will be forced to be GO
a5830ede
JM		 1487 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1488 *
1489 * This function is used to do initial operating channel selection for GO
ebd32943
IP		 1490 * Negotiation prior to having received peer information or for P2PS PD
1491 * signalling. The selected channel may be further optimized in
1492 * p2p_reselect_channel() once the peer information is available.
a5830ede 1493 */
79879f4a 1494int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
51e9f228 1495 unsigned int force_freq, unsigned int pref_freq, int go)
b22128ef 1496{
51e9f228
JM		 1497 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1498 force_freq, pref_freq, go);
04a3e69d 1499 if (force_freq || pref_freq) {
51e9f228
JM		 1500 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1501 0)
1e19f734 1502 return -1;
b22128ef 1503 } else {
e28c226d 1504 p2p_prepare_channel_best(p2p);
b22128ef 1505 }
51e9f228
JM		 1506 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1507 if (go)
1508 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1509 else if (!force_freq)
a6306bcc
JM		 1510 p2p_channels_union_inplace(&p2p->channels,
1511 &p2p->cfg->cli_channels);
51e9f228
JM		 1512 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1513
ed496f13 1514 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
b22128ef
JM		 1515 p2p->op_reg_class, p2p->op_channel,
1516 force_freq ? " (forced)" : "");
1517
92ac756c
JM		 1518 if (force_freq)
1519 dev->flags |= P2P_DEV_FORCE_FREQ;
1520 else
1521 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1522
7861cb08
JM		 1523 return 0;
1524}
1525
1526
acc247b2
JM		 1527static void p2p_set_dev_persistent(struct p2p_device *dev,
1528 int persistent_group)
1529{
1530 switch (persistent_group) {
1531 case 0:
1532 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1533 P2P_DEV_PREFER_PERSISTENT_RECONN);
1534 break;
1535 case 1:
1536 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1537 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1538 break;
1539 case 2:
1540 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1541 P2P_DEV_PREFER_PERSISTENT_RECONN;
1542 break;
1543 }
1544}
1545
1546
7861cb08
JM		 1547int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1548 enum p2p_wps_method wps_method,
1549 int go_intent, const u8 *own_interface_addr,
23c84252 1550 unsigned int force_freq, int persistent_group,
3bc462cb 1551 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1552 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
7861cb08
JM		 1553{
1554 struct p2p_device *dev;
1555
ed496f13 1556 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
7861cb08 1557 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442
JM		 1558 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1559 "oob_pw_id=%u",
7861cb08 1560 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1561 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
7861cb08 1562
b22128ef
JM		 1563 dev = p2p_get_device(p2p, peer_addr);
1564 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
ed496f13 1565 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
b22128ef
JM		 1566 MAC2STR(peer_addr));
1567 return -1;
1568 }
1569
51e9f228
JM		 1570 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1571 go_intent == 15) < 0)
92ac756c
JM		 1572 return -1;
1573
b22128ef 1574 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
c5db8e51
KRK		 1575 if (!(dev->info.dev_capab &
1576 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
ed496f13 1577 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1578 " that is in a group and is not discoverable",
1579 MAC2STR(peer_addr));
1580 return -1;
1581 }
1582 if (dev->oper_freq <= 0) {
ed496f13 1583 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
b22128ef
JM		 1584 " with incomplete information",
1585 MAC2STR(peer_addr));
1586 return -1;
1587 }
1588
1589 /*
1590 * First, try to connect directly. If the peer does not
1591 * acknowledge frames, assume it is sleeping and use device
1592 * discoverability via the GO at that point.
1593 */
1594 }
1595
23c84252
JM		 1596 p2p->ssid_set = 0;
1597 if (force_ssid) {
1598 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1599 force_ssid, force_ssid_len);
1600 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1601 p2p->ssid_len = force_ssid_len;
1602 p2p->ssid_set = 1;
1603 }
1604
b22128ef
JM		 1605 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1606 dev->flags &= ~P2P_DEV_USER_REJECTED;
1607 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1608 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3bc462cb
JM		 1609 if (pd_before_go_neg)
1610 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1611 else {
3bc462cb 1612 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
624b4d5a 1613 /*
003c4580
JM		 1614 * Assign dialog token and tie breaker here to use the same
1615 * values in each retry within the same GO Negotiation exchange.
624b4d5a
SD		 1616 */
1617 dev->dialog_token++;
1618 if (dev->dialog_token == 0)
1619 dev->dialog_token = 1;
003c4580
JM		 1620 dev->tie_breaker = p2p->next_tie_breaker;
1621 p2p->next_tie_breaker = !p2p->next_tie_breaker;
624b4d5a 1622 }
9dac8c3e 1623 dev->connect_reqs = 0;
b22128ef
JM		 1624 dev->go_neg_req_sent = 0;
1625 dev->go_state = UNKNOWN_GO;
acc247b2 1626 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1627 p2p->go_intent = go_intent;
1628 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1629
1630 if (p2p->state != P2P_IDLE)
1631 p2p_stop_find(p2p);
1632
1633 dev->wps_method = wps_method;
ab9e3442 1634 dev->oob_pw_id = oob_pw_id;
b22128ef 1635 dev->status = P2P_SC_SUCCESS;
d5b20a73 1636
b22128ef 1637 if (p2p->p2p_scan_running) {
ed496f13 1638 p2p_dbg(p2p, "p2p_scan running - delay connect send");
b22128ef
JM		 1639 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1640 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1641 return 0;
1642 }
b22128ef
JM		 1643
1644 return p2p_connect_send(p2p, dev);
1645}
1646
1647
1648int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1649 enum p2p_wps_method wps_method,
1650 int go_intent, const u8 *own_interface_addr,
23c84252 1651 unsigned int force_freq, int persistent_group,
04a3e69d 1652 const u8 *force_ssid, size_t force_ssid_len,
ab9e3442 1653 unsigned int pref_freq, u16 oob_pw_id)
b22128ef
JM		 1654{
1655 struct p2p_device *dev;
1656
ed496f13 1657 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
b22128ef 1658 " GO Intent=%d Intended Interface Address=" MACSTR
ab9e3442 1659 " wps_method=%d persistent_group=%d oob_pw_id=%u",
b22128ef 1660 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
ab9e3442 1661 wps_method, persistent_group, oob_pw_id);
b22128ef 1662
b22128ef
JM		 1663 dev = p2p_get_device(p2p, peer_addr);
1664 if (dev == NULL) {
ed496f13 1665 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
b22128ef
JM		 1666 MAC2STR(peer_addr));
1667 return -1;
1668 }
1669
51e9f228
JM		 1670 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1671 15) < 0)
92ac756c
JM		 1672 return -1;
1673
23c84252
JM		 1674 p2p->ssid_set = 0;
1675 if (force_ssid) {
1676 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1677 force_ssid, force_ssid_len);
1678 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1679 p2p->ssid_len = force_ssid_len;
1680 p2p->ssid_set = 1;
1681 }
1682
b22128ef
JM		 1683 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1684 dev->flags &= ~P2P_DEV_USER_REJECTED;
1685 dev->go_neg_req_sent = 0;
1686 dev->go_state = UNKNOWN_GO;
acc247b2 1687 p2p_set_dev_persistent(dev, persistent_group);
b22128ef
JM		 1688 p2p->go_intent = go_intent;
1689 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1690
1691 dev->wps_method = wps_method;
ab9e3442 1692 dev->oob_pw_id = oob_pw_id;
b22128ef
JM		 1693 dev->status = P2P_SC_SUCCESS;
1694
1695 return 0;
1696}
1697
1698
1699void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1700 struct p2p_device *dev, struct p2p_message *msg)
1701{
acb69cec 1702 os_get_reltime(&dev->last_seen);
b22128ef 1703
ed496f13 1704 p2p_copy_wps_info(p2p, dev, 0, msg);
e57ae6e1 1705
b22128ef
JM		 1706 if (msg->listen_channel) {
1707 int freq;
9ccd9165 1708 freq = p2p_channel_to_freq(msg->listen_channel[3],
b22128ef
JM		 1709 msg->listen_channel[4]);
1710 if (freq < 0) {
ed496f13 1711 p2p_dbg(p2p, "Unknown peer Listen channel: "
b22128ef
JM		 1712 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1713 msg->listen_channel[0],
1714 msg->listen_channel[1],
1715 msg->listen_channel[2],
1716 msg->listen_channel[3],
1717 msg->listen_channel[4]);
1718 } else {
ed496f13
JM		 1719 p2p_dbg(p2p, "Update peer " MACSTR
1720 " Listen channel: %u -> %u MHz",
c5db8e51 1721 MAC2STR(dev->info.p2p_device_addr),
b22128ef
JM		 1722 dev->listen_freq, freq);
1723 dev->listen_freq = freq;
1724 }
1725 }
b22128ef 1726
9675ce35
JM		 1727 if (msg->wfd_subelems) {
1728 wpabuf_free(dev->info.wfd_subelems);
1729 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1730 }
1731
b22128ef
JM		 1732 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1733 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
ed496f13 1734 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
b22128ef 1735 } else {
ed496f13 1736 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
b22128ef
JM		 1737 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1738 "listen_freq=%d",
c5db8e51
KRK		 1739 MAC2STR(dev->info.p2p_device_addr),
1740 dev->info.dev_capab, dev->info.group_capab,
1741 dev->info.device_name, dev->listen_freq);
b22128ef
JM		 1742 }
1743
1744 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1745
1746 if (dev->flags & P2P_DEV_USER_REJECTED) {
ed496f13 1747 p2p_dbg(p2p, "Do not report rejected device");
b22128ef
JM		 1748 return;
1749 }
1750
8fd7dc1b
JB		 1751 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1752 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1753 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
b22128ef
JM		 1754}
1755
1756
1757void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1758{
1759 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1760 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1761 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1762 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1763 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1764}
1765
1766
1767int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1768{
59fec34d
KV		 1769 if (p2p->ssid_set) {
1770 os_memcpy(params->ssid, p2p->ssid, p2p->ssid_len);
1771 params->ssid_len = p2p->ssid_len;
1772 } else {
1773 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1774 }
1775 p2p->ssid_set = 0;
1776
1b928f96 1777 p2p_random(params->passphrase, p2p->cfg->passphrase_len);
b22128ef
JM		 1778 return 0;
1779}
1780
1781
1782void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1783{
1784 struct p2p_go_neg_results res;
1785 int go = peer->go_state == LOCAL_GO;
1786 struct p2p_channels intersection;
b22128ef 1787
ed496f13
JM		 1788 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1789 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
b22128ef
JM		 1790
1791 os_memset(&res, 0, sizeof(res));
1792 res.role_go = go;
c5db8e51 1793 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
b22128ef
JM		 1794 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1795 res.wps_method = peer->wps_method;
acc247b2
JM		 1796 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1797 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1798 res.persistent_group = 2;
1799 else
1800 res.persistent_group = 1;
1801 }
b22128ef
JM		 1802
1803 if (go) {
1804 /* Setup AP mode for WPS provisioning */
9ccd9165 1805 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
b22128ef
JM		 1806 p2p->op_channel);
1807 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1808 res.ssid_len = p2p->ssid_len;
1b928f96 1809 p2p_random(res.passphrase, p2p->cfg->passphrase_len);
e9a7ae41 1810 } else {
b22128ef 1811 res.freq = peer->oper_freq;
e9a7ae41
JM		 1812 if (p2p->ssid_len) {
1813 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1814 res.ssid_len = p2p->ssid_len;
1815 }
1816 }
b22128ef 1817
556b30da
JM		 1818 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1819 p2p_channels_dump(p2p, "peer channels", &peer->channels);
b22128ef
JM		 1820 p2p_channels_intersect(&p2p->channels, &peer->channels,
1821 &intersection);
556b30da
JM		 1822 if (go) {
1823 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1824 p2p_channels_dump(p2p, "intersection after no-GO removal",
1825 &intersection);
1826 }
1170239e
IP		 1827
1828 p2p_channels_to_freqs(&intersection, res.freq_list,
1829 P2P_MAX_CHANNELS);
b22128ef 1830
ae3e3421
JM		 1831 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1832
b22128ef 1833 p2p_clear_timeout(p2p);
4458d915 1834 p2p->ssid_set = 0;
b22128ef 1835 peer->go_neg_req_sent = 0;
49aa88bb 1836 peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
b22128ef 1837 peer->wps_method = WPS_NOT_READY;
ab9e3442 1838 peer->oob_pw_id = 0;
0e0e1e56
NS		 1839 wpabuf_free(peer->go_neg_conf);
1840 peer->go_neg_conf = NULL;
b22128ef
JM		 1841
1842 p2p_set_state(p2p, P2P_PROVISIONING);
1843 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1844}
1845
1846
1847static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1848 const u8 *data, size_t len, int rx_freq)
1849{
ed496f13 1850 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1851 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1852
1853 if (len < 1)
1854 return;
1855
1856 switch (data[0]) {
1857 case P2P_GO_NEG_REQ:
1858 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1859 break;
1860 case P2P_GO_NEG_RESP:
1861 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1862 break;
1863 case P2P_GO_NEG_CONF:
1864 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1865 break;
1866 case P2P_INVITATION_REQ:
1867 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1868 rx_freq);
1869 break;
1870 case P2P_INVITATION_RESP:
1871 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1872 break;
1873 case P2P_PROV_DISC_REQ:
1874 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1875 break;
1876 case P2P_PROV_DISC_RESP:
1877 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1878 break;
1879 case P2P_DEV_DISC_REQ:
1880 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1881 break;
1882 case P2P_DEV_DISC_RESP:
1883 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1884 break;
1885 default:
ed496f13 1886 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
b22128ef
JM		 1887 data[0]);
1888 break;
1889 }
1890}
1891
1892
19df9b07
JM		 1893static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1894 const u8 *sa, const u8 *bssid, const u8 *data,
1895 size_t len, int freq)
b22128ef
JM		 1896{
1897 if (len < 1)
1898 return;
1899
1900 switch (data[0]) {
1901 case WLAN_PA_VENDOR_SPECIFIC:
1902 data++;
1903 len--;
8bc4372f 1904 if (len < 4)
b22128ef 1905 return;
8bc4372f 1906 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef
JM		 1907 return;
1908
8bc4372f
RJ		 1909 data += 4;
1910 len -= 4;
b22128ef 1911
8bc4372f 1912 p2p_rx_p2p_action(p2p, sa, data, len, freq);
b22128ef
JM		 1913 break;
1914 case WLAN_PA_GAS_INITIAL_REQ:
1915 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1916 break;
1917 case WLAN_PA_GAS_INITIAL_RESP:
18708aad
JM		 1918 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1919 break;
1920 case WLAN_PA_GAS_COMEBACK_REQ:
1921 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1922 break;
1923 case WLAN_PA_GAS_COMEBACK_RESP:
1924 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
b22128ef
JM		 1925 break;
1926 }
1927}
1928
1929
1930void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1931 const u8 *bssid, u8 category,
1932 const u8 *data, size_t len, int freq)
1933{
1934 if (category == WLAN_ACTION_PUBLIC) {
1935 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1936 return;
1937 }
1938
1939 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1940 return;
1941
1942 if (len < 4)
1943 return;
1944
8bc4372f 1945 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
b22128ef 1946 return;
8bc4372f
RJ		 1947 data += 4;
1948 len -= 4;
b22128ef
JM		 1949
1950 /* P2P action frame */
ed496f13 1951 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
b22128ef
JM		 1952 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1953
1954 if (len < 1)
1955 return;
1956 switch (data[0]) {
1957 case P2P_NOA:
ed496f13 1958 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
b22128ef
JM		 1959 /* TODO */
1960 break;
1961 case P2P_PRESENCE_REQ:
1962 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1963 break;
1964 case P2P_PRESENCE_RESP:
1965 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1966 break;
1967 case P2P_GO_DISC_REQ:
1968 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1969 break;
1970 default:
ed496f13 1971 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
b22128ef
JM		 1972 break;
1973 }
1974}
1975
1976
1977static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1978{
1979 struct p2p_data *p2p = eloop_ctx;
1980 if (p2p->go_neg_peer == NULL)
1981 return;
7549c178
JM		 1982 if (p2p->pending_listen_freq) {
1983 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_go_neg_start");
1984 p2p->pending_listen_freq = 0;
1985 }
b22128ef
JM		 1986 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1987 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
e49cabcf
JM		 1988 /*
1989 * Set new timeout to make sure a previously set one does not expire
1990 * too quickly while waiting for the GO Negotiation to complete.
1991 */
1992 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 1993 p2p_connect_send(p2p, p2p->go_neg_peer);
1994}
1995
1996
1997static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1998{
1999 struct p2p_data *p2p = eloop_ctx;
2000 if (p2p->invite_peer == NULL)
2001 return;
7549c178
JM		 2002 if (p2p->pending_listen_freq) {
2003 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_invite_start");
2004 p2p->pending_listen_freq = 0;
2005 }
b22128ef 2006 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
8e9f53c3
JM		 2007 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
2008 p2p->invite_dev_pw_id);
b22128ef
JM		 2009}
2010
2011
2012static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
2013 const u8 *ie, size_t ie_len)
2014{
2015 struct p2p_message msg;
2016 struct p2p_device *dev;
2017
2018 os_memset(&msg, 0, sizeof(msg));
2019 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
2020 {
2021 p2p_parse_free(&msg);
2022 return; /* not a P2P probe */
2023 }
2024
2025 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
2026 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
2027 != 0) {
2028 /* The Probe Request is not part of P2P Device Discovery. It is
2029 * not known whether the source address of the frame is the P2P
2030 * Device Address or P2P Interface Address. Do not add a new
2031 * peer entry based on this frames.
2032 */
2033 p2p_parse_free(&msg);
2034 return;
2035 }
2036
2037 dev = p2p_get_device(p2p, addr);
2038 if (dev) {
12c1fdf1
IP		 2039 if (msg.listen_channel) {
2040 int freq;
2041
2042 if (dev->country[0] == 0)
2043 os_memcpy(dev->country, msg.listen_channel, 3);
2044
2045 freq = p2p_channel_to_freq(msg.listen_channel[3],
2046 msg.listen_channel[4]);
2047
2048 if (freq > 0 && dev->listen_freq != freq) {
2049 p2p_dbg(p2p,
2050 "Updated peer " MACSTR " Listen channel (Probe Request): %d -> %d MHz",
2051 MAC2STR(addr), dev->listen_freq, freq);
2052 dev->listen_freq = freq;
2053 }
2054 }
2055
acb69cec 2056 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2057 p2p_parse_free(&msg);
2058 return; /* already known */
2059 }
2060
2061 dev = p2p_create_device(p2p, addr);
2062 if (dev == NULL) {
2063 p2p_parse_free(&msg);
2064 return;
2065 }
2066
acb69cec 2067 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2068 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
2069
b22128ef
JM		 2070 if (msg.listen_channel) {
2071 os_memcpy(dev->country, msg.listen_channel, 3);
9ccd9165 2072 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
b22128ef
JM		 2073 msg.listen_channel[4]);
2074 }
2075
ed496f13 2076 p2p_copy_wps_info(p2p, dev, 1, &msg);
e57ae6e1 2077
9675ce35
JM		 2078 if (msg.wfd_subelems) {
2079 wpabuf_free(dev->info.wfd_subelems);
2080 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
2081 }
2082
b22128ef
JM		 2083 p2p_parse_free(&msg);
2084
ed496f13 2085 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
b22128ef 2086 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
c5db8e51
KRK		 2087 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
2088 dev->info.group_capab, dev->info.device_name,
2089 dev->listen_freq);
b22128ef
JM		 2090}
2091
2092
2093struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
2094 const u8 *addr,
2095 struct p2p_message *msg)
2096{
2097 struct p2p_device *dev;
2098
2099 dev = p2p_get_device(p2p, addr);
2100 if (dev) {
acb69cec 2101 os_get_reltime(&dev->last_seen);
b22128ef
JM		 2102 return dev; /* already known */
2103 }
2104
2105 dev = p2p_create_device(p2p, addr);
2106 if (dev == NULL)
2107 return NULL;
2108
2109 p2p_add_dev_info(p2p, addr, dev, msg);
2110
2111 return dev;
2112}
2113
2114
2115static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
2116{
2117 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
2118 return 1;
2119 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
2120 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
2121 WPA_GET_BE16(&req_dev_type[6]) == 0)
2122 return 1; /* Category match with wildcard OUI/sub-category */
2123 return 0;
2124}
2125
2126
2127int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
2128 size_t num_req_dev_type)
2129{
2130 size_t i;
2131 for (i = 0; i < num_req_dev_type; i++) {
2132 if (dev_type_match(dev_type, req_dev_type[i]))
2133 return 1;
2134 }
2135 return 0;
2136}
2137
2138
2139/**
2140 * p2p_match_dev_type - Match local device type with requested type
2141 * @p2p: P2P module context from p2p_init()
2142 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2143 * Returns: 1 on match, 0 on mismatch
2144 *
2145 * This function can be used to match the Requested Device Type attribute in
2146 * WPS IE with the local device types for deciding whether to reply to a Probe
2147 * Request frame.
2148 */
2149int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
2150{
2151 struct wps_parse_attr attr;
2152 size_t i;
2153
2154 if (wps_parse_msg(wps, &attr))
2155 return 1; /* assume no Requested Device Type attributes */
2156
2157 if (attr.num_req_dev_type == 0)
2158 return 1; /* no Requested Device Type attributes -> match */
2159
2160 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
2161 attr.num_req_dev_type))
2162 return 1; /* Own Primary Device Type matches */
2163
e635efb4 2164 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++) {
b22128ef
JM		 2165 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
2166 attr.req_dev_type,
2167 attr.num_req_dev_type))
e635efb4
JM		 2168 return 1; /* Own Secondary Device Type matches */
2169 }
b22128ef
JM		 2170
2171 /* No matching device type found */
2172 return 0;
2173}
2174
2175
e12c4004
MS		 2176struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p,
2177 const u8 *query_hash,
2178 u8 query_count)
b22128ef
JM		 2179{
2180 struct wpabuf *buf;
2181 u8 *len;
360182ed 2182 int pw_id = -1;
9675ce35 2183 size_t extra = 0;
b22128ef 2184
9675ce35
JM		 2185#ifdef CONFIG_WIFI_DISPLAY
2186 if (p2p->wfd_ie_probe_resp)
2187 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
2188#endif /* CONFIG_WIFI_DISPLAY */
2189
86bd36f0
JM		 2190 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2191 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2192
e12c4004 2193 if (query_count)
4660e732
BG		 2194 extra += MAX_SVC_ADV_IE_LEN;
2195
9675ce35 2196 buf = wpabuf_alloc(1000 + extra);
b22128ef
JM		 2197 if (buf == NULL)
2198 return NULL;
2199
360182ed
JM		 2200 if (p2p->go_neg_peer) {
2201 /* Advertise immediate availability of WPS credential */
2202 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
2203 }
2204
33183761
JM		 2205 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
2206 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
2207 wpabuf_free(buf);
2208 return NULL;
2209 }
b22128ef 2210
9675ce35
JM		 2211#ifdef CONFIG_WIFI_DISPLAY
2212 if (p2p->wfd_ie_probe_resp)
2213 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
2214#endif /* CONFIG_WIFI_DISPLAY */
2215
86bd36f0
JM		 2216 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2217 wpabuf_put_buf(buf,
2218 p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2219
b22128ef
JM		 2220 /* P2P IE */
2221 len = p2p_buf_add_ie_hdr(buf);
18485b54
MH		 2222 p2p_buf_add_capability(buf, p2p->dev_capab &
2223 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
b22128ef
JM		 2224 if (p2p->ext_listen_interval)
2225 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
2226 p2p->ext_listen_interval);
2227 p2p_buf_add_device_info(buf, p2p, NULL);
2228 p2p_buf_update_ie_hdr(buf, len);
2229
e12c4004
MS		 2230 if (query_count) {
2231 p2p_buf_add_service_instance(buf, p2p, query_count, query_hash,
4660e732
BG		 2232 p2p->p2ps_adv_list);
2233 }
2234
b22128ef
JM		 2235 return buf;
2236}
2237
a6f5b193
PX		 2238static int p2p_build_probe_resp_buf(struct p2p_data *p2p, struct wpabuf *buf,
2239 struct wpabuf *ies,
2240 const u8 *addr, int rx_freq)
2241{
2242 struct ieee80211_mgmt *resp;
2243 u8 channel, op_class;
2244
2245 resp = wpabuf_put(buf, offsetof(struct ieee80211_mgmt,
2246 u.probe_resp.variable));
2247
2248 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2249 (WLAN_FC_STYPE_PROBE_RESP << 4));
2250 os_memcpy(resp->da, addr, ETH_ALEN);
2251 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2252 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2253 resp->u.probe_resp.beacon_int = host_to_le16(100);
2254 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2255 resp->u.probe_resp.capab_info =
2256 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2257 WLAN_CAPABILITY_PRIVACY |
2258 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2259
2260 wpabuf_put_u8(buf, WLAN_EID_SSID);
2261 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2262 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2263
2264 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2265 wpabuf_put_u8(buf, 8);
2266 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2267 wpabuf_put_u8(buf, 90 / 5);
2268 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2269 wpabuf_put_u8(buf, 180 / 5);
2270 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2271 wpabuf_put_u8(buf, 360 / 5);
2272 wpabuf_put_u8(buf, 480 / 5);
2273 wpabuf_put_u8(buf, 540 / 5);
2274
2275 if (!rx_freq) {
2276 channel = p2p->cfg->channel;
2277 } else if (p2p_freq_to_channel(rx_freq, &op_class, &channel)) {
2278 p2p_err(p2p, "Failed to convert freq to channel");
2279 return -1;
2280 }
2281
2282 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2283 wpabuf_put_u8(buf, 1);
2284 wpabuf_put_u8(buf, channel);
2285
2286 wpabuf_put_buf(buf, ies);
2287
2288 return 0;
2289}
b22128ef 2290
9e7321ee
KV		 2291static int p2p_service_find_asp(struct p2p_data *p2p, const u8 *hash)
2292{
2293 struct p2ps_advertisement *adv_data;
ebdc32f3 2294 int any_wfa;
9e7321ee
KV		 2295
2296 p2p_dbg(p2p, "ASP find - ASP list: %p", p2p->p2ps_adv_list);
2297
ebdc32f3
JM		 2298 /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
2299 any_wfa = os_memcmp(hash, p2p->wild_card_hash, P2PS_HASH_LEN) == 0;
9e7321ee
KV		 2300
2301 adv_data = p2p->p2ps_adv_list;
2302 while (adv_data) {
9e7321ee 2303 if (os_memcmp(hash, adv_data->hash, P2PS_HASH_LEN) == 0)
ebdc32f3
JM		 2304 return 1; /* exact hash match */
2305 if (any_wfa &&
2306 os_strncmp(adv_data->svc_name, P2PS_WILD_HASH_STR,
2307 os_strlen(P2PS_WILD_HASH_STR)) == 0)
2308 return 1; /* WFA service match */
9e7321ee
KV		 2309 adv_data = adv_data->next;
2310 }
2311
2312 return 0;
2313}
2314
2315
2d43d37f
JB		 2316static enum p2p_probe_req_status
2317p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
734ddf61
MS		 2318 const u8 *bssid, const u8 *ie, size_t ie_len,
2319 unsigned int rx_freq)
b22128ef
JM		 2320{
2321 struct ieee802_11_elems elems;
2322 struct wpabuf *buf;
97c5b3c4 2323 struct p2p_message msg;
b22128ef
JM		 2324 struct wpabuf *ies;
2325
b22128ef
JM		 2326 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
2327 ParseFailed) {
2328 /* Ignore invalid Probe Request frames */
a5527a49 2329 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
2d43d37f 2330 return P2P_PREQ_MALFORMED;
b22128ef
JM		 2331 }
2332
2333 if (elems.p2p == NULL) {
2334 /* not a P2P probe - ignore it */
a5527a49 2335 p2p_dbg(p2p, "Not a P2P probe - ignore it");
2d43d37f 2336 return P2P_PREQ_NOT_P2P;
b22128ef
JM		 2337 }
2338
04a85e44
JM		 2339 if (dst && !is_broadcast_ether_addr(dst) &&
2340 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2341 /* Not sent to the broadcast address or our P2P Device Address
2342 */
a5527a49
JM		 2343 p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
2344 MAC2STR(dst));
2d43d37f 2345 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2346 }
2347
2348 if (bssid && !is_broadcast_ether_addr(bssid)) {
2349 /* Not sent to the Wildcard BSSID */
a5527a49
JM		 2350 p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
2351 MAC2STR(bssid));
2d43d37f 2352 return P2P_PREQ_NOT_PROCESSED;
04a85e44
JM		 2353 }
2354
b22128ef
JM		 2355 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2356 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2357 0) {
2358 /* not using P2P Wildcard SSID - ignore */
a5527a49 2359 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
2d43d37f 2360 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2361 }
2362
e1d52629
JM		 2363 if (supp_rates_11b_only(&elems)) {
2364 /* Indicates support for 11b rates only */
a5527a49 2365 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
2d43d37f 2366 return P2P_PREQ_NOT_P2P;
e1d52629
JM		 2367 }
2368
97c5b3c4
JM		 2369 os_memset(&msg, 0, sizeof(msg));
2370 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2371 /* Could not parse P2P attributes */
a5527a49 2372 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
2d43d37f 2373 return P2P_PREQ_NOT_P2P;
97c5b3c4
JM		 2374 }
2375
9e7321ee
KV		 2376 if (msg.service_hash && msg.service_hash_count) {
2377 const u8 *hash = msg.service_hash;
9e7321ee 2378 u8 i;
886f583d 2379 int p2ps_svc_found = 0;
9e7321ee 2380
a4062443
JM		 2381 p2p_dbg(p2p, "in_listen=%d drv_in_listen=%d when received P2PS Probe Request at %u MHz; own Listen channel %u, pending listen freq %u MHz",
2382 p2p->in_listen, p2p->drv_in_listen, rx_freq,
2383 p2p->cfg->channel, p2p->pending_listen_freq);
2384
2385 if (!p2p->in_listen && !p2p->drv_in_listen &&
2386 p2p->pending_listen_freq && rx_freq &&
2387 rx_freq != p2p->pending_listen_freq) {
2388 p2p_dbg(p2p, "Do not reply to Probe Request frame that was received on %u MHz while waiting to start Listen state on %u MHz",
2389 rx_freq, p2p->pending_listen_freq);
2390 p2p_parse_free(&msg);
2391 return P2P_PREQ_NOT_LISTEN;
2392 }
2393
9e7321ee
KV		 2394 for (i = 0; i < msg.service_hash_count; i++) {
2395 if (p2p_service_find_asp(p2p, hash)) {
fdde3db6
JM		 2396 p2p_dbg(p2p, "Service Hash match found: "
2397 MACSTR, MAC2STR(hash));
886f583d 2398 p2ps_svc_found = 1;
fdde3db6 2399 break;
9e7321ee
KV		 2400 }
2401 hash += P2PS_HASH_LEN;
2402 }
2403
9e7321ee 2404 /* Probed hash unknown */
886f583d 2405 if (!p2ps_svc_found) {
fdde3db6 2406 p2p_dbg(p2p, "No Service Hash match found");
9e7321ee
KV		 2407 p2p_parse_free(&msg);
2408 return P2P_PREQ_NOT_PROCESSED;
2409 }
2410 } else {
2411 /* This is not a P2PS Probe Request */
9e7321ee
KV		 2412 p2p_dbg(p2p, "No P2PS Hash in Probe Request");
2413
2414 if (!p2p->in_listen || !p2p->drv_in_listen) {
2415 /* not in Listen state - ignore Probe Request */
2416 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2417 p2p->in_listen, p2p->drv_in_listen);
2418 p2p_parse_free(&msg);
2419 return P2P_PREQ_NOT_LISTEN;
2420 }
2421 }
2422
97c5b3c4 2423 if (msg.device_id &&
1c7447d0 2424 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
97c5b3c4 2425 /* Device ID did not match */
a5527a49
JM		 2426 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
2427 MAC2STR(msg.device_id));
97c5b3c4 2428 p2p_parse_free(&msg);
2d43d37f 2429 return P2P_PREQ_NOT_PROCESSED;
97c5b3c4
JM		 2430 }
2431
b22128ef 2432 /* Check Requested Device Type match */
97c5b3c4
JM		 2433 if (msg.wps_attributes &&
2434 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
b22128ef 2435 /* No match with Requested Device Type */
b3e8ca65 2436 p2p_dbg(p2p, "Probe Req requested Device Type did not match - ignore it");
97c5b3c4 2437 p2p_parse_free(&msg);
2d43d37f 2438 return P2P_PREQ_NOT_PROCESSED;
b22128ef 2439 }
b22128ef 2440
2d43d37f
JB		 2441 if (!p2p->cfg->send_probe_resp) {
2442 /* Response generated elsewhere */
a5527a49 2443 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
fdde3db6 2444 p2p_parse_free(&msg);
2d43d37f
JB		 2445 return P2P_PREQ_NOT_PROCESSED;
2446 }
b22128ef 2447
ed496f13 2448 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
b22128ef
JM		 2449
2450 /*
2451 * We do not really have a specific BSS that this frame is advertising,
2452 * so build a frame that has some information in valid format. This is
2453 * really only used for discovery purposes, not to learn exact BSS
2454 * parameters.
2455 */
fdde3db6
JM		 2456 ies = p2p_build_probe_resp_ies(p2p, msg.service_hash,
2457 msg.service_hash_count);
2458 p2p_parse_free(&msg);
b22128ef 2459 if (ies == NULL)
2d43d37f 2460 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2461
2462 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2463 if (buf == NULL) {
2464 wpabuf_free(ies);
2d43d37f 2465 return P2P_PREQ_NOT_PROCESSED;
b22128ef
JM		 2466 }
2467
a6f5b193 2468 if (p2p_build_probe_resp_buf(p2p, buf, ies, addr, rx_freq)) {
734ddf61
MS		 2469 wpabuf_free(ies);
2470 wpabuf_free(buf);
2471 return P2P_PREQ_NOT_PROCESSED;
2472 }
2473
b22128ef
JM		 2474 wpabuf_free(ies);
2475
0799b3f8 2476 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf, rx_freq);
b22128ef
JM		 2477
2478 wpabuf_free(buf);
2d43d37f 2479
5143e7ee 2480 return P2P_PREQ_PROCESSED;
b22128ef
JM		 2481}
2482
2483
2d43d37f
JB		 2484enum p2p_probe_req_status
2485p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
734ddf61 2486 const u8 *bssid, const u8 *ie, size_t ie_len,
a6f5b193 2487 unsigned int rx_freq, int p2p_lo_started)
b22128ef 2488{
2d43d37f
JB		 2489 enum p2p_probe_req_status res;
2490
b22128ef
JM		 2491 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2492
a6f5b193
PX		 2493 if (p2p_lo_started) {
2494 p2p_dbg(p2p,
2495 "Probe Response is offloaded, do not reply Probe Request");
2496 return P2P_PREQ_PROCESSED;
2497 }
2498
734ddf61 2499 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len, rx_freq);
5143e7ee
MS		 2500 if (res != P2P_PREQ_PROCESSED && res != P2P_PREQ_NOT_PROCESSED)
2501 return res;
2502
2503 /*
2504 * Activate a pending GO Negotiation/Invite flow if a received Probe
2505 * Request frame is from an expected peer. Some devices may share the
2506 * same address for P2P and non-P2P STA running simultaneously. The
2507 * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
2508 * return values verified above ensure we are handling a Probe Request
2509 * frame from a P2P peer.
2510 */
b22128ef
JM		 2511 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2512 p2p->go_neg_peer &&
c5db8e51 2513 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
c03e2113
JM		 2514 == 0 &&
2515 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
b22128ef 2516 /* Received a Probe Request from GO Negotiation peer */
ed496f13 2517 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
8cee87ab 2518 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
b22128ef 2519 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
5143e7ee 2520 return res;
b22128ef
JM		 2521 }
2522
2523 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2524 p2p->invite_peer &&
a05e236b 2525 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
c5db8e51
KRK		 2526 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2527 == 0) {
b22128ef 2528 /* Received a Probe Request from Invite peer */
ed496f13 2529 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
aef5047a 2530 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
b22128ef 2531 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
5143e7ee 2532 return res;
b22128ef
JM		 2533 }
2534
2d43d37f 2535 return res;
b22128ef
JM		 2536}
2537
2538
2539static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
4c08c0bd 2540 u8 *buf, size_t len, struct wpabuf *p2p_ie)
b22128ef
JM		 2541{
2542 struct wpabuf *tmp;
2543 u8 *lpos;
2544 size_t tmplen;
2545 int res;
72044390 2546 u8 group_capab;
9b05135a 2547 struct p2p_message msg;
b22128ef 2548
4c08c0bd
JM		 2549 if (p2p_ie == NULL)
2550 return 0; /* WLAN AP is not a P2P manager */
b22128ef 2551
9b05135a
IP		 2552 os_memset(&msg, 0, sizeof(msg));
2553 if (p2p_parse_p2p_ie(p2p_ie, &msg) < 0)
2554 return 0;
2555
2556 p2p_dbg(p2p, "BSS P2P manageability %s",
2557 msg.manageability ? "enabled" : "disabled");
2558
2559 if (!msg.manageability)
2560 return 0;
2561
b22128ef
JM		 2562 /*
2563 * (Re)Association Request - P2P IE
2564 * P2P Capability attribute (shall be present)
4c08c0bd
JM		 2565 * P2P Interface attribute (present if concurrent device and
2566 * P2P Management is enabled)
b22128ef
JM		 2567 */
2568 tmp = wpabuf_alloc(200);
2569 if (tmp == NULL)
2570 return -1;
2571
2572 lpos = p2p_buf_add_ie_hdr(tmp);
72044390
JM		 2573 group_capab = 0;
2574 if (p2p->num_groups > 0) {
2575 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2576 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2577 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2578 p2p->cross_connect)
2579 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2580 }
2581 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
4c08c0bd
JM		 2582 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2583 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
b22128ef
JM		 2584 p2p_buf_add_p2p_interface(tmp, p2p);
2585 p2p_buf_update_ie_hdr(tmp, lpos);
2586
2587 tmplen = wpabuf_len(tmp);
2588 if (tmplen > len)
2589 res = -1;
2590 else {
2591 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2592 res = tmplen;
2593 }
2594 wpabuf_free(tmp);
2595
2596 return res;
2597}
2598
2599
2600int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
4c08c0bd 2601 size_t len, int p2p_group, struct wpabuf *p2p_ie)
b22128ef
JM		 2602{
2603 struct wpabuf *tmp;
2604 u8 *lpos;
2605 struct p2p_device *peer;
2606 size_t tmplen;
2607 int res;
9675ce35 2608 size_t extra = 0;
b22128ef
JM		 2609
2610 if (!p2p_group)
4c08c0bd 2611 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
b22128ef 2612
9675ce35
JM		 2613#ifdef CONFIG_WIFI_DISPLAY
2614 if (p2p->wfd_ie_assoc_req)
2615 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2616#endif /* CONFIG_WIFI_DISPLAY */
2617
86bd36f0
JM		 2618 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2619 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2620
b22128ef
JM		 2621 /*
2622 * (Re)Association Request - P2P IE
2623 * P2P Capability attribute (shall be present)
2624 * Extended Listen Timing (may be present)
2625 * P2P Device Info attribute (shall be present)
2626 */
9675ce35 2627 tmp = wpabuf_alloc(200 + extra);
b22128ef
JM		 2628 if (tmp == NULL)
2629 return -1;
2630
9675ce35
JM		 2631#ifdef CONFIG_WIFI_DISPLAY
2632 if (p2p->wfd_ie_assoc_req)
2633 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2634#endif /* CONFIG_WIFI_DISPLAY */
2635
86bd36f0
JM		 2636 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2637 wpabuf_put_buf(tmp,
2638 p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2639
b22128ef
JM		 2640 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2641
2642 lpos = p2p_buf_add_ie_hdr(tmp);
2643 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
5be5305b
JM		 2644 if (p2p->ext_listen_interval)
2645 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2646 p2p->ext_listen_interval);
b22128ef
JM		 2647 p2p_buf_add_device_info(tmp, p2p, peer);
2648 p2p_buf_update_ie_hdr(tmp, lpos);
2649
2650 tmplen = wpabuf_len(tmp);
2651 if (tmplen > len)
2652 res = -1;
2653 else {
2654 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2655 res = tmplen;
2656 }
2657 wpabuf_free(tmp);
2658
2659 return res;
2660}
2661
2662
2663int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2664{
2665 struct wpabuf *p2p_ie;
2666 int ret;
2667
2668 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2669 if (p2p_ie == NULL)
2670 return 0;
2671
2672 ret = p2p_attr_text(p2p_ie, buf, end);
2673 wpabuf_free(p2p_ie);
2674 return ret;
2675}
2676
2677
ae9d45f3
KV		 2678struct p2ps_advertisement *
2679p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id)
2680{
2681 struct p2ps_advertisement *adv_data;
2682
2683 if (!p2p)
2684 return NULL;
2685
2686 adv_data = p2p->p2ps_adv_list;
2687 while (adv_data) {
2688 if (adv_data->id == adv_id)
2689 return adv_data;
2690 adv_data = adv_data->next;
2691 }
2692
2693 return NULL;
2694}
2695
2696
2697int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id)
2698{
2699 struct p2ps_advertisement *adv_data;
2700 struct p2ps_advertisement **prior;
2701
2702 if (!p2p)
2703 return -1;
2704
2705 adv_data = p2p->p2ps_adv_list;
2706 prior = &p2p->p2ps_adv_list;
2707 while (adv_data) {
2708 if (adv_data->id == adv_id) {
2709 p2p_dbg(p2p, "Delete ASP adv_id=0x%x", adv_id);
2710 *prior = adv_data->next;
2711 os_free(adv_data);
2712 return 0;
2713 }
2714 prior = &adv_data->next;
2715 adv_data = adv_data->next;
2716 }
2717
2718 return -1;
2719}
2720
2721
2722int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id,
2723 const char *adv_str, u8 svc_state, u16 config_methods,
e2b7fbf2 2724 const char *svc_info, const u8 *cpt_priority)
ae9d45f3
KV		 2725{
2726 struct p2ps_advertisement *adv_data, *tmp, **prev;
2727 u8 buf[P2PS_HASH_LEN];
2728 size_t adv_data_len, adv_len, info_len = 0;
e2b7fbf2 2729 int i;
ae9d45f3 2730
e2b7fbf2 2731 if (!p2p || !adv_str || !adv_str[0] || !cpt_priority)
ae9d45f3
KV		 2732 return -1;
2733
2734 if (!(config_methods & p2p->cfg->config_methods)) {
2735 p2p_dbg(p2p, "Config methods not supported svc: 0x%x dev: 0x%x",
2736 config_methods, p2p->cfg->config_methods);
2737 return -1;
2738 }
2739
2740 if (!p2ps_gen_hash(p2p, adv_str, buf))
2741 return -1;
2742
2743 if (svc_info)
2744 info_len = os_strlen(svc_info);
2745 adv_len = os_strlen(adv_str);
2746 adv_data_len = sizeof(struct p2ps_advertisement) + adv_len + 1 +
2747 info_len + 1;
2748
2749 adv_data = os_zalloc(adv_data_len);
2750 if (!adv_data)
2751 return -1;
2752
2753 os_memcpy(adv_data->hash, buf, P2PS_HASH_LEN);
2754 adv_data->id = adv_id;
2755 adv_data->state = svc_state;
2756 adv_data->config_methods = config_methods & p2p->cfg->config_methods;
2757 adv_data->auto_accept = (u8) auto_accept;
2758 os_memcpy(adv_data->svc_name, adv_str, adv_len);
2759
e2b7fbf2
MS		 2760 for (i = 0; cpt_priority[i] && i < P2PS_FEATURE_CAPAB_CPT_MAX; i++) {
2761 adv_data->cpt_priority[i] = cpt_priority[i];
2762 adv_data->cpt_mask |= cpt_priority[i];
2763 }
2764
ae9d45f3
KV		 2765 if (svc_info && info_len) {
2766 adv_data->svc_info = &adv_data->svc_name[adv_len + 1];
2767 os_memcpy(adv_data->svc_info, svc_info, info_len);
2768 }
2769
2770 /*
2771 * Group Advertisements by service string. They do not need to be
2772 * sorted, but groups allow easier Probe Response instance grouping
2773 */
2774 tmp = p2p->p2ps_adv_list;
2775 prev = &p2p->p2ps_adv_list;
2776 while (tmp) {
2777 if (tmp->id == adv_data->id) {
2778 if (os_strcmp(tmp->svc_name, adv_data->svc_name) != 0) {
2779 os_free(adv_data);
2780 return -1;
2781 }
2782 adv_data->next = tmp->next;
2783 *prev = adv_data;
2784 os_free(tmp);
2785 goto inserted;
2786 } else {
2787 if (os_strcmp(tmp->svc_name, adv_data->svc_name) == 0) {
2788 adv_data->next = tmp->next;
2789 tmp->next = adv_data;
2790 goto inserted;
2791 }
2792 }
2793 prev = &tmp->next;
2794 tmp = tmp->next;
2795 }
2796
2797 /* No svc_name match found */
2798 adv_data->next = p2p->p2ps_adv_list;
2799 p2p->p2ps_adv_list = adv_data;
2800
2801inserted:
2802 p2p_dbg(p2p,
e2b7fbf2
MS		 2803 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
2804 adv_id, adv_data->config_methods, svc_state, adv_str,
2805 adv_data->cpt_mask);
ae9d45f3
KV		 2806
2807 return 0;
2808}
2809
2810
c40a8918
MS		 2811void p2p_service_flush_asp(struct p2p_data *p2p)
2812{
2813 struct p2ps_advertisement *adv, *prev;
2814
2815 if (!p2p)
2816 return;
2817
2818 adv = p2p->p2ps_adv_list;
2819 while (adv) {
2820 prev = adv;
2821 adv = adv->next;
2822 os_free(prev);
2823 }
2824
2825 p2p->p2ps_adv_list = NULL;
78a3b230 2826 p2ps_prov_free(p2p);
c40a8918
MS		 2827 p2p_dbg(p2p, "All ASP advertisements flushed");
2828}
2829
2830
c2d76aa6 2831int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
0a70f34f 2832{
0a70f34f
JM		 2833 struct p2p_message msg;
2834
0a70f34f 2835 os_memset(&msg, 0, sizeof(msg));
c2d76aa6 2836 if (p2p_parse_p2p_ie(p2p_ie, &msg))
0a70f34f 2837 return -1;
0a70f34f 2838
526ec4ae
JM		 2839 if (msg.p2p_device_addr) {
2840 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
c2d76aa6 2841 return 0;
526ec4ae
JM		 2842 } else if (msg.device_id) {
2843 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
c2d76aa6 2844 return 0;
0a70f34f 2845 }
c2d76aa6
MH		 2846 return -1;
2847}
0a70f34f 2848
c2d76aa6
MH		 2849
2850int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2851{
2852 struct wpabuf *p2p_ie;
2853 int ret;
2854
2855 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2856 P2P_IE_VENDOR_TYPE);
2857 if (p2p_ie == NULL)
2858 return -1;
2859 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
0a70f34f 2860 wpabuf_free(p2p_ie);
526ec4ae 2861 return ret;
0a70f34f
JM		 2862}
2863
2864
b22128ef
JM		 2865static void p2p_clear_go_neg(struct p2p_data *p2p)
2866{
2867 p2p->go_neg_peer = NULL;
2868 p2p_clear_timeout(p2p);
2869 p2p_set_state(p2p, P2P_IDLE);
2870}
2871
2872
2873void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2874{
2875 if (p2p->go_neg_peer == NULL) {
ed496f13 2876 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
b22128ef
JM		 2877 return; /* No pending Group Formation */
2878 }
2879
2880 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2881 0) {
ed496f13
JM		 2882 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2883 MACSTR " (GO Negotiation peer " MACSTR ")",
b22128ef
JM		 2884 MAC2STR(mac_addr),
2885 MAC2STR(p2p->go_neg_peer->intended_addr));
2886 return; /* Ignore unexpected peer address */
2887 }
2888
ed496f13 2889 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
b22128ef
JM		 2890 MAC2STR(mac_addr));
2891
2892 p2p_clear_go_neg(p2p);
2893}
2894
2895
2896void p2p_group_formation_failed(struct p2p_data *p2p)
2897{
2898 if (p2p->go_neg_peer == NULL) {
ed496f13 2899 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
b22128ef
JM		 2900 return; /* No pending Group Formation */
2901 }
2902
ed496f13 2903 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
b22128ef
JM		 2904 MAC2STR(p2p->go_neg_peer->intended_addr));
2905
2906 p2p_clear_go_neg(p2p);
2907}
2908
2909
2910struct p2p_data * p2p_init(const struct p2p_config *cfg)
2911{
2912 struct p2p_data *p2p;
2913
1b928f96
JM		 2914 if (cfg->max_peers < 1 ||
2915 cfg->passphrase_len < 8 || cfg->passphrase_len > 63)
b22128ef
JM		 2916 return NULL;
2917
2918 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2919 if (p2p == NULL)
2920 return NULL;
2921 p2p->cfg = (struct p2p_config *) (p2p + 1);
2922 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2923 if (cfg->dev_name)
2924 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
b6e01800
JM		 2925 if (cfg->manufacturer)
2926 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2927 if (cfg->model_name)
2928 p2p->cfg->model_name = os_strdup(cfg->model_name);
2929 if (cfg->model_number)
2930 p2p->cfg->model_number = os_strdup(cfg->model_number);
2931 if (cfg->serial_number)
2932 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
21d996f7
JM		 2933 if (cfg->pref_chan) {
2934 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2935 sizeof(struct p2p_channel));
2936 if (p2p->cfg->pref_chan) {
2937 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2938 cfg->num_pref_chan *
2939 sizeof(struct p2p_channel));
2940 } else
2941 p2p->cfg->num_pref_chan = 0;
2942 }
b22128ef 2943
51775096
BG		 2944 p2ps_gen_hash(p2p, P2PS_WILD_HASH_STR, p2p->wild_card_hash);
2945
b22128ef
JM		 2946 p2p->min_disc_int = 1;
2947 p2p->max_disc_int = 3;
96beff11 2948 p2p->max_disc_tu = -1;
b22128ef 2949
df2508d7
JM		 2950 if (os_get_random(&p2p->next_tie_breaker, 1) < 0)
2951 p2p->next_tie_breaker = 0;
b22128ef
JM		 2952 p2p->next_tie_breaker &= 0x01;
2953 if (cfg->sd_request)
2954 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2955 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2956 if (cfg->concurrent_operations)
2957 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2958 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2959
2960 dl_list_init(&p2p->devices);
2961
4f219667
JM		 2962 p2p->go_timeout = 100;
2963 p2p->client_timeout = 20;
f667e031 2964 p2p->num_p2p_sd_queries = 0;
4f219667 2965
51e9f228
JM		 2966 p2p_dbg(p2p, "initialized");
2967 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2968 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2969
b22128ef
JM		 2970 return p2p;
2971}
2972
2973
2974void p2p_deinit(struct p2p_data *p2p)
2975{
9675ce35
JM		 2976#ifdef CONFIG_WIFI_DISPLAY
2977 wpabuf_free(p2p->wfd_ie_beacon);
2978 wpabuf_free(p2p->wfd_ie_probe_req);
2979 wpabuf_free(p2p->wfd_ie_probe_resp);
2980 wpabuf_free(p2p->wfd_ie_assoc_req);
2981 wpabuf_free(p2p->wfd_ie_invitation);
2982 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2983 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2984 wpabuf_free(p2p->wfd_ie_go_neg);
2985 wpabuf_free(p2p->wfd_dev_info);
2986 wpabuf_free(p2p->wfd_assoc_bssid);
2987 wpabuf_free(p2p->wfd_coupled_sink_info);
e9518ae7 2988 wpabuf_free(p2p->wfd_r2_dev_info);
9675ce35
JM		 2989#endif /* CONFIG_WIFI_DISPLAY */
2990
b22128ef 2991 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
8cee87ab 2992 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
0c6eee8b 2993 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
b22128ef 2994 p2p_flush(p2p);
046ef4aa 2995 p2p_free_req_dev_types(p2p);
b22128ef 2996 os_free(p2p->cfg->dev_name);
b6e01800
JM		 2997 os_free(p2p->cfg->manufacturer);
2998 os_free(p2p->cfg->model_name);
2999 os_free(p2p->cfg->model_number);
3000 os_free(p2p->cfg->serial_number);
21d996f7 3001 os_free(p2p->cfg->pref_chan);
b22128ef 3002 os_free(p2p->groups);
3f048aa8 3003 p2ps_prov_free(p2p);
18708aad 3004 wpabuf_free(p2p->sd_resp);
f95cac27 3005 p2p_remove_wps_vendor_extensions(p2p);
556b30da 3006 os_free(p2p->no_go_freq.range);
c40a8918 3007 p2p_service_flush_asp(p2p);
ae9d45f3 3008
b22128ef
JM		 3009 os_free(p2p);
3010}
3011
3012
3013void p2p_flush(struct p2p_data *p2p)
3014{
3015 struct p2p_device *dev, *prev;
a3de1676
AO		 3016
3017 p2p_ext_listen(p2p, 0, 0);
78db55b8 3018 p2p_stop_find(p2p);
b22128ef
JM		 3019 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
3020 list) {
3021 dl_list_del(&dev->list);
3022 p2p_device_free(p2p, dev);
3023 }
3024 p2p_free_sd_queries(p2p);
85b563f7 3025 p2p->ssid_set = 0;
4cc0f909
AN		 3026 p2ps_prov_free(p2p);
3027 p2p_reset_pending_pd(p2p);
3a7819f0
JM		 3028 p2p->override_pref_op_class = 0;
3029 p2p->override_pref_channel = 0;
b22128ef
JM		 3030}
3031
3032
9d562b79
SS		 3033int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
3034{
3035 struct p2p_device *dev;
3036
3037 dev = p2p_get_device(p2p, addr);
3038 if (dev == NULL)
3039 return -1;
3040
ed496f13 3041 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
9d562b79 3042
0c6eee8b
RR		 3043 if (p2p->go_neg_peer == dev) {
3044 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
9d562b79 3045 p2p->go_neg_peer = NULL;
0c6eee8b 3046 }
9d562b79
SS		 3047
3048 dev->wps_method = WPS_NOT_READY;
ab9e3442 3049 dev->oob_pw_id = 0;
9d562b79
SS		 3050 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
3051 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3052
9d562b79
SS		 3053 return 0;
3054}
3055
3056
b22128ef
JM		 3057int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
3058{
3059 os_free(p2p->cfg->dev_name);
3060 if (dev_name) {
3061 p2p->cfg->dev_name = os_strdup(dev_name);
3062 if (p2p->cfg->dev_name == NULL)
3063 return -1;
3064 } else
3065 p2p->cfg->dev_name = NULL;
3066 return 0;
3067}
3068
3069
b6e01800
JM		 3070int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
3071{
3072 os_free(p2p->cfg->manufacturer);
3073 p2p->cfg->manufacturer = NULL;
3074 if (manufacturer) {
3075 p2p->cfg->manufacturer = os_strdup(manufacturer);
3076 if (p2p->cfg->manufacturer == NULL)
3077 return -1;
3078 }
3079
3080 return 0;
3081}
3082
3083
3084int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
3085{
3086 os_free(p2p->cfg->model_name);
3087 p2p->cfg->model_name = NULL;
3088 if (model_name) {
3089 p2p->cfg->model_name = os_strdup(model_name);
3090 if (p2p->cfg->model_name == NULL)
3091 return -1;
3092 }
3093
3094 return 0;
3095}
3096
3097
3098int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
3099{
3100 os_free(p2p->cfg->model_number);
3101 p2p->cfg->model_number = NULL;
3102 if (model_number) {
3103 p2p->cfg->model_number = os_strdup(model_number);
3104 if (p2p->cfg->model_number == NULL)
3105 return -1;
3106 }
3107
3108 return 0;
3109}
3110
3111
3112int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
3113{
3114 os_free(p2p->cfg->serial_number);
3115 p2p->cfg->serial_number = NULL;
3116 if (serial_number) {
3117 p2p->cfg->serial_number = os_strdup(serial_number);
3118 if (p2p->cfg->serial_number == NULL)
3119 return -1;
3120 }
3121
3122 return 0;
3123}
3124
3125
3126void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
3127{
3128 p2p->cfg->config_methods = config_methods;
3129}
3130
3131
3132void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
3133{
3134 os_memcpy(p2p->cfg->uuid, uuid, 16);
3135}
3136
3137
b22128ef
JM		 3138int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
3139{
3140 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
3141 return 0;
3142}
3143
3144
3145int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
3146 size_t num_dev_types)
3147{
3148 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
3149 num_dev_types = P2P_SEC_DEVICE_TYPES;
3150 p2p->cfg->num_sec_dev_types = num_dev_types;
3151 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
3152 return 0;
3153}
3154
3155
f95cac27
JMB		 3156void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
3157{
3158 int i;
3159
10c5d2a5 3160 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 3161 wpabuf_free(p2p->wps_vendor_ext[i]);
3162 p2p->wps_vendor_ext[i] = NULL;
3163 }
3164}
3165
3166
3167int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
3168 const struct wpabuf *vendor_ext)
3169{
3170 int i;
3171
3172 if (vendor_ext == NULL)
3173 return -1;
3174
10c5d2a5 3175 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
f95cac27
JMB		 3176 if (p2p->wps_vendor_ext[i] == NULL)
3177 break;
3178 }
10c5d2a5 3179 if (i >= P2P_MAX_WPS_VENDOR_EXT)
f95cac27
JMB		 3180 return -1;
3181
3182 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
3183 if (p2p->wps_vendor_ext[i] == NULL)
3184 return -1;
3185
3186 return 0;
3187}
3188
3189
b22128ef
JM		 3190int p2p_set_country(struct p2p_data *p2p, const char *country)
3191{
3192 os_memcpy(p2p->cfg->country, country, 3);
3193 return 0;
3194}
3195
3196
e706b8c8
JM		 3197static int p2p_pre_find_operation(struct p2p_data *p2p, struct p2p_device *dev)
3198{
cba9ebfd
JM		 3199 int res;
3200
e706b8c8
JM		 3201 if (dev->sd_pending_bcast_queries == 0) {
3202 /* Initialize with total number of registered broadcast
3203 * SD queries. */
3204 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
3205 }
3206
cba9ebfd
JM		 3207 res = p2p_start_sd(p2p, dev);
3208 if (res == -2)
3209 return -2;
3210 if (res == 0)
e706b8c8
JM		 3211 return 1;
3212
3213 if (dev->req_config_methods &&
3214 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
3215 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
3216 MACSTR " (config methods 0x%x)",
3217 MAC2STR(dev->info.p2p_device_addr),
3218 dev->req_config_methods);
3219 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
3220 return 1;
3221 }
3222
3223 return 0;
3224}
3225
3226
b22128ef
JM		 3227void p2p_continue_find(struct p2p_data *p2p)
3228{
3229 struct p2p_device *dev;
cba9ebfd 3230 int found, res;
e706b8c8 3231
b22128ef 3232 p2p_set_state(p2p, P2P_SEARCH);
e706b8c8
JM		 3233
3234 /* Continue from the device following the last iteration */
3235 found = 0;
b22128ef 3236 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
e706b8c8
JM		 3237 if (dev == p2p->last_p2p_find_oper) {
3238 found = 1;
3239 continue;
3240 }
3241 if (!found)
3242 continue;
cba9ebfd
JM		 3243 res = p2p_pre_find_operation(p2p, dev);
3244 if (res > 0) {
e706b8c8
JM		 3245 p2p->last_p2p_find_oper = dev;
3246 return;
f667e031 3247 }
cba9ebfd
JM		 3248 if (res == -2)
3249 goto skip_sd;
e706b8c8 3250 }
f667e031 3251
e706b8c8
JM		 3252 /*
3253 * Wrap around to the beginning of the list and continue until the last
3254 * iteration device.
3255 */
3256 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
cba9ebfd
JM		 3257 res = p2p_pre_find_operation(p2p, dev);
3258 if (res > 0) {
e706b8c8 3259 p2p->last_p2p_find_oper = dev;
f667e031 3260 return;
b22128ef 3261 }
cba9ebfd
JM		 3262 if (res == -2)
3263 goto skip_sd;
e706b8c8
JM		 3264 if (dev == p2p->last_p2p_find_oper)
3265 break;
b22128ef
JM		 3266 }
3267
cba9ebfd
JM		 3268skip_sd:
3269 os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
96beff11 3270 p2p_listen_in_find(p2p, 1);
b22128ef
JM		 3271}
3272
3273
3274static void p2p_sd_cb(struct p2p_data *p2p, int success)
3275{
ed496f13 3276 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
b22128ef
JM		 3277 success);
3278 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3279
3280 if (!success) {
cba9ebfd
JM		 3281 if (p2p->sd_peer) {
3282 if (is_zero_ether_addr(p2p->sd_query_no_ack)) {
3283 os_memcpy(p2p->sd_query_no_ack,
3284 p2p->sd_peer->info.p2p_device_addr,
3285 ETH_ALEN);
3286 p2p_dbg(p2p,
3287 "First SD Query no-ACK in this search iteration: "
3288 MACSTR, MAC2STR(p2p->sd_query_no_ack));
3289 }
4db20751 3290 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
cba9ebfd 3291 }
f667e031 3292 p2p->sd_peer = NULL;
2c0efd9e
KV		 3293 if (p2p->state != P2P_IDLE)
3294 p2p_continue_find(p2p);
b22128ef
JM		 3295 return;
3296 }
3297
3298 if (p2p->sd_peer == NULL) {
ed496f13 3299 p2p_dbg(p2p, "No SD peer entry known");
2c0efd9e
KV		 3300 if (p2p->state != P2P_IDLE)
3301 p2p_continue_find(p2p);
b22128ef
JM		 3302 return;
3303 }
3304
bff162ac 3305 if (p2p->sd_query && p2p->sd_query->for_all_peers) {
7139cf4a
CM		 3306 /* Update the pending broadcast SD query count for this device
3307 */
3308 p2p->sd_peer->sd_pending_bcast_queries--;
3309
3310 /*
3311 * If there are no pending broadcast queries for this device,
3312 * mark it as done (-1).
3313 */
3314 if (p2p->sd_peer->sd_pending_bcast_queries == 0)
3315 p2p->sd_peer->sd_pending_bcast_queries = -1;
3316 }
3317
b22128ef
JM		 3318 /* Wait for response from the peer */
3319 p2p_set_state(p2p, P2P_SD_DURING_FIND);
3320 p2p_set_timeout(p2p, 0, 200000);
3321}
3322
6b56cc2d
JS		 3323
3324/**
3325 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3326 * @p2p: P2P module context from p2p_init()
3327 */
19df9b07 3328static void p2p_retry_pd(struct p2p_data *p2p)
6b56cc2d
JS		 3329{
3330 struct p2p_device *dev;
3331
6b56cc2d
JS		 3332 /*
3333 * Retry the prov disc req attempt only for the peer that the user had
175171ac 3334 * requested.
6b56cc2d
JS		 3335 */
3336
3337 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3338 if (os_memcmp(p2p->pending_pd_devaddr,
3339 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3340 continue;
3341 if (!dev->req_config_methods)
3342 continue;
6b56cc2d 3343
ed496f13 3344 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
6b56cc2d
JS		 3345 MACSTR " (config methods 0x%x)",
3346 MAC2STR(dev->info.p2p_device_addr),
3347 dev->req_config_methods);
175171ac 3348 p2p_send_prov_disc_req(p2p, dev,
8d82c210
JM		 3349 dev->flags & P2P_DEV_PD_FOR_JOIN,
3350 p2p->pd_force_freq);
6b56cc2d
JS		 3351 return;
3352 }
3353}
3354
3355
b22128ef
JM		 3356static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
3357{
ed496f13 3358 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
b22128ef 3359 success);
6b56cc2d
JS		 3360
3361 /*
3362 * Postpone resetting the pending action state till after we actually
3363 * time out. This allows us to take some action like notifying any
3364 * interested parties about no response to the request.
3365 *
3366 * When the timer (below) goes off we check in IDLE, SEARCH, or
3367 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3368 * requests in, if this was still pending and then raise notification.
3369 */
b22128ef
JM		 3370
3371 if (!success) {
6b56cc2d
JS		 3372 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3373
488f4a71
JM		 3374 if (p2p->user_initiated_pd &&
3375 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
3376 {
3377 /* Retry request from timeout to avoid busy loops */
3378 p2p->pending_action_state = P2P_PENDING_PD;
3379 p2p_set_timeout(p2p, 0, 50000);
3380 } else if (p2p->state != P2P_IDLE)
b22128ef 3381 p2p_continue_find(p2p);
6b56cc2d
JS		 3382 else if (p2p->user_initiated_pd) {
3383 p2p->pending_action_state = P2P_PENDING_PD;
3384 p2p_set_timeout(p2p, 0, 300000);
3385 }
b22128ef
JM		 3386 return;
3387 }
3388
f94e4c20
MS		 3389 /*
3390 * If after PD Request the peer doesn't expect to receive PD Response
3391 * the PD Request ACK indicates a completion of the current PD. This
3392 * happens only on the advertiser side sending the follow-on PD Request
3393 * with the status different than 12 (Success: accepted by user).
3394 */
3395 if (p2p->p2ps_prov && !p2p->p2ps_prov->pd_seeker &&
3396 p2p->p2ps_prov->status != P2P_SC_SUCCESS_DEFERRED) {
3397 p2p_dbg(p2p, "P2PS PD completion on Follow-on PD Request ACK");
3398
3399 if (p2p->send_action_in_progress) {
3400 p2p->send_action_in_progress = 0;
3401 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3402 }
3403
3404 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3405
3406 if (p2p->cfg->p2ps_prov_complete) {
3407 p2p->cfg->p2ps_prov_complete(
3408 p2p->cfg->cb_ctx,
3409 p2p->p2ps_prov->status,
3410 p2p->p2ps_prov->adv_mac,
3411 p2p->p2ps_prov->adv_mac,
3412 p2p->p2ps_prov->session_mac,
3413 NULL, p2p->p2ps_prov->adv_id,
3414 p2p->p2ps_prov->session_id,
3415 0, 0, NULL, 0, 0, 0,
aa256cb3 3416 NULL, NULL, 0, 0, NULL, 0);
f94e4c20
MS		 3417 }
3418
3419 if (p2p->user_initiated_pd)
3420 p2p_reset_pending_pd(p2p);
3421
3422 p2ps_prov_free(p2p);
3423 return;
3424 }
3425
6b56cc2d
JS		 3426 /*
3427 * This postponing, of resetting pending_action_state, needs to be
3428 * done only for user initiated PD requests and not internal ones.
3429 */
3430 if (p2p->user_initiated_pd)
3431 p2p->pending_action_state = P2P_PENDING_PD;
3432 else
3433 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3434
b22128ef
JM		 3435 /* Wait for response from the peer */
3436 if (p2p->state == P2P_SEARCH)
3437 p2p_set_state(p2p, P2P_PD_DURING_FIND);
3438 p2p_set_timeout(p2p, 0, 200000);
3439}
3440
3441
9a58e521
KV		 3442static void p2p_prov_disc_resp_cb(struct p2p_data *p2p, int success)
3443{
3444 p2p_dbg(p2p, "Provision Discovery Response TX callback: success=%d",
3445 success);
3446
3447 if (p2p->send_action_in_progress) {
3448 p2p->send_action_in_progress = 0;
3449 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3450 }
3451
3452 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3453
3454 if (!success)
683f8677 3455 return;
9a58e521
KV		 3456
3457 if (!p2p->cfg->prov_disc_resp_cb ||
3458 p2p->cfg->prov_disc_resp_cb(p2p->cfg->cb_ctx) < 1)
683f8677 3459 return;
9a58e521
KV		 3460
3461 p2p_dbg(p2p,
3462 "Post-Provision Discovery operations started - do not try to continue other P2P operations");
9a58e521
KV		 3463}
3464
3465
b22128ef 3466int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
acb69cec 3467 struct os_reltime *rx_time, int level, const u8 *ies,
3dfd0484 3468 size_t ies_len)
b22128ef 3469{
acb69cec 3470 if (os_reltime_before(rx_time, &p2p->find_start)) {
a5b5e830
JM		 3471 /*
3472 * The driver may have cached (e.g., in cfg80211 BSS table) the
3473 * scan results for relatively long time. To avoid reporting
3474 * stale information, update P2P peers only based on results
3475 * that have based on frames received after the last p2p_find
3476 * operation was started.
3477 */
ed496f13 3478 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
6014e59c 3479 " (rx_time=%u.%06u find_start=%u.%06u)",
a5b5e830 3480 MAC2STR(bssid), (unsigned int) rx_time->sec,
6014e59c
JM		 3481 (unsigned int) rx_time->usec,
3482 (unsigned int) p2p->find_start.sec,
3483 (unsigned int) p2p->find_start.usec);
a5b5e830
JM		 3484 return 0;
3485 }
3486
c5f10e80 3487 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
b22128ef 3488
b22128ef
JM		 3489 return 0;
3490}
3491
3492
3493void p2p_scan_res_handled(struct p2p_data *p2p)
3494{
3495 if (!p2p->p2p_scan_running) {
ed496f13 3496 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
b22128ef
JM		 3497 }
3498 p2p->p2p_scan_running = 0;
3499 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
3500
3501 if (p2p_run_after_scan(p2p))
3502 return;
3503 if (p2p->state == P2P_SEARCH)
3504 p2p_continue_find(p2p);
3505}
3506
3507
c58eed6d
LD		 3508void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id,
3509 unsigned int bands)
b22128ef 3510{
1a94b0ad 3511 u8 dev_capab;
9675ce35
JM		 3512 u8 *len;
3513
3514#ifdef CONFIG_WIFI_DISPLAY
3515 if (p2p->wfd_ie_probe_req)
3516 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
3517#endif /* CONFIG_WIFI_DISPLAY */
3518
86bd36f0
JM		 3519 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3520 wpabuf_put_buf(ies,
3521 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3522
9675ce35 3523 len = p2p_buf_add_ie_hdr(ies);
1a94b0ad
BG		 3524
3525 dev_capab = p2p->dev_capab & ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3526
3527 /* P2PS requires Probe Request frames to include SD bit */
3528 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3529 dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
3530
3531 p2p_buf_add_capability(ies, dev_capab, 0);
3532
6d92fa6e
JM		 3533 if (dev_id)
3534 p2p_buf_add_device_id(ies, dev_id);
b22128ef
JM		 3535 if (p2p->cfg->reg_class && p2p->cfg->channel)
3536 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
3537 p2p->cfg->reg_class,
3538 p2p->cfg->channel);
3539 if (p2p->ext_listen_interval)
3540 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
3541 p2p->ext_listen_interval);
1a94b0ad 3542
c58eed6d
LD		 3543 if (bands & BAND_60_GHZ)
3544 p2p_buf_add_device_info(ies, p2p, NULL);
3545
1a94b0ad
BG		 3546 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3547 p2p_buf_add_service_hash(ies, p2p);
3548
b22128ef
JM		 3549 /* TODO: p2p_buf_add_operating_channel() if GO */
3550 p2p_buf_update_ie_hdr(ies, len);
3551}
3552
3553
206e1f42
JM		 3554size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
3555{
9675ce35
JM		 3556 size_t len = 100;
3557
3558#ifdef CONFIG_WIFI_DISPLAY
3559 if (p2p && p2p->wfd_ie_probe_req)
3560 len += wpabuf_len(p2p->wfd_ie_probe_req);
3561#endif /* CONFIG_WIFI_DISPLAY */
3562
86bd36f0
JM		 3563 if (p2p && p2p->vendor_elem &&
3564 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3565 len += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3566
9675ce35 3567 return len;
206e1f42
JM		 3568}
3569
3570
b22128ef
JM		 3571int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
3572{
3573 return p2p_attr_text(p2p_ie, buf, end);
3574}
3575
3576
3577static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
3578{
3579 struct p2p_device *dev = p2p->go_neg_peer;
fb8984fd 3580 int timeout;
b22128ef 3581
ed496f13 3582 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
b22128ef
JM		 3583
3584 if (dev == NULL) {
ed496f13 3585 p2p_dbg(p2p, "No pending GO Negotiation");
b22128ef
JM		 3586 return;
3587 }
3588
3589 if (success) {
b22128ef
JM		 3590 if (dev->flags & P2P_DEV_USER_REJECTED) {
3591 p2p_set_state(p2p, P2P_IDLE);
3592 return;
3593 }
a1d2ab32
NKG		 3594 } else if (dev->go_neg_req_sent) {
3595 /* Cancel the increment from p2p_connect_send() on failure */
3596 dev->go_neg_req_sent--;
b22128ef
JM		 3597 }
3598
3599 if (!success &&
c5db8e51 3600 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
b22128ef 3601 !is_zero_ether_addr(dev->member_in_go_dev)) {
ed496f13 3602 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
c5db8e51 3603 MAC2STR(dev->info.p2p_device_addr));
b22128ef
JM		 3604 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3605 p2p_send_dev_disc_req(p2p, dev);
3606 return;
3607 }
3608
3609 /*
3610 * Use P2P find, if needed, to find the other device from its listen
3611 * channel.
3612 */
3613 p2p_set_state(p2p, P2P_CONNECT);
fb8984fd
JM		 3614 timeout = success ? 500000 : 100000;
3615 if (!success && p2p->go_neg_peer &&
3616 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
3617 unsigned int r;
3618 /*
3619 * Peer is expected to wait our response and we will skip the
3620 * listen phase. Add some randomness to the wait time here to
3621 * make it less likely to hit cases where we could end up in
3622 * sync with peer not listening.
3623 */
df2508d7
JM		 3624 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3625 r = 0;
fb8984fd
JM		 3626 timeout += r % 100000;
3627 }
3628 p2p_set_timeout(p2p, 0, timeout);
b22128ef
JM		 3629}
3630
3631
3632static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
3633{
ed496f13 3634 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
b22128ef
JM		 3635 success);
3636 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
ed496f13 3637 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
b22128ef
JM		 3638 return;
3639 }
3640 p2p_set_state(p2p, P2P_CONNECT);
8e4839ce 3641 p2p_set_timeout(p2p, 0, 500000);
b22128ef
JM		 3642}
3643
3644
7800d45c
JM		 3645static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
3646 const u8 *addr)
b22128ef 3647{
ed496f13 3648 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
fbe70272 3649 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
8c00fd00 3650 p2p_go_neg_failed(p2p, p2p->go_neg_peer->status);
de7c06ee
JM		 3651 return;
3652 }
3653
3654 if (success) {
7800d45c
JM		 3655 struct p2p_device *dev;
3656 dev = p2p_get_device(p2p, addr);
3657 if (dev &&
3658 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
3659 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
fbe70272 3660 }
de7c06ee
JM		 3661
3662 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
3663 p2p_continue_find(p2p);
b22128ef
JM		 3664}
3665
3666
93b7ddd0
JM		 3667static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
3668 enum p2p_send_action_result result)
b22128ef
JM		 3669{
3670 struct p2p_device *dev;
3671
ed496f13 3672 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
93b7ddd0 3673 if (result == P2P_SEND_ACTION_FAILED) {
0e0e1e56 3674 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
8c00fd00 3675 p2p_go_neg_failed(p2p, -1);
93b7ddd0
JM		 3676 return;
3677 }
0e0e1e56
NS		 3678
3679 dev = p2p->go_neg_peer;
3680
93b7ddd0 3681 if (result == P2P_SEND_ACTION_NO_ACK) {
0e0e1e56
NS		 3682 /*
3683 * Retry GO Negotiation Confirmation
3684 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3685 * ACK for confirmation.
3686 */
3687 if (dev && dev->go_neg_conf &&
3688 dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
3689 p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
3690 dev->go_neg_conf_sent);
3691 p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
3692 if (p2p_send_action(p2p, dev->go_neg_conf_freq,
3693 dev->info.p2p_device_addr,
3694 p2p->cfg->dev_addr,
3695 dev->info.p2p_device_addr,
3696 wpabuf_head(dev->go_neg_conf),
3697 wpabuf_len(dev->go_neg_conf), 0) >=
3698 0) {
3699 dev->go_neg_conf_sent++;
3700 return;
3701 }
3702 p2p_dbg(p2p, "Failed to re-send Action frame");
3703
3704 /*
3705 * Continue with the assumption that the first attempt
3706 * went through and just the ACK frame was lost.
3707 */
3708 }
3709
b22128ef
JM		 3710 /*
3711 * It looks like the TX status for GO Negotiation Confirm is
3712 * often showing failure even when the peer has actually
3713 * received the frame. Since the peer may change channels
3714 * immediately after having received the frame, we may not see
3715 * an Ack for retries, so just dropping a single frame may
3716 * trigger this. To allow the group formation to succeed if the
3717 * peer did indeed receive the frame, continue regardless of
3718 * the TX status.
3719 */
ed496f13 3720 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
b22128ef
JM		 3721 }
3722
0e0e1e56
NS		 3723 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3724
b22128ef
JM		 3725 if (dev == NULL)
3726 return;
3727
3728 p2p_go_complete(p2p, dev);
3729}
3730
3731
3732void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
93b7ddd0
JM		 3733 const u8 *src, const u8 *bssid,
3734 enum p2p_send_action_result result)
b22128ef
JM		 3735{
3736 enum p2p_pending_action_state state;
93b7ddd0 3737 int success;
b22128ef 3738
ed496f13 3739 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
c5e154c0 3740 " src=" MACSTR " bssid=" MACSTR " result=%d p2p_state=%s)",
b22128ef 3741 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
c5e154c0 3742 MAC2STR(bssid), result, p2p_state_txt(p2p->state));
93b7ddd0 3743 success = result == P2P_SEND_ACTION_SUCCESS;
b22128ef
JM		 3744 state = p2p->pending_action_state;
3745 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3746 switch (state) {
3747 case P2P_NO_PENDING_ACTION:
c5c2d942
JM		 3748 if (p2p->send_action_in_progress) {
3749 p2p->send_action_in_progress = 0;
3750 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3751 }
b22128ef
JM		 3752 break;
3753 case P2P_PENDING_GO_NEG_REQUEST:
3754 p2p_go_neg_req_cb(p2p, success);
3755 break;
3756 case P2P_PENDING_GO_NEG_RESPONSE:
3757 p2p_go_neg_resp_cb(p2p, success);
3758 break;
3759 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
7800d45c 3760 p2p_go_neg_resp_failure_cb(p2p, success, dst);
b22128ef
JM		 3761 break;
3762 case P2P_PENDING_GO_NEG_CONFIRM:
93b7ddd0 3763 p2p_go_neg_conf_cb(p2p, result);
b22128ef
JM		 3764 break;
3765 case P2P_PENDING_SD:
3766 p2p_sd_cb(p2p, success);
3767 break;
3768 case P2P_PENDING_PD:
3769 p2p_prov_disc_cb(p2p, success);
3770 break;
9a58e521
KV		 3771 case P2P_PENDING_PD_RESPONSE:
3772 p2p_prov_disc_resp_cb(p2p, success);
3773 break;
b22128ef
JM		 3774 case P2P_PENDING_INVITATION_REQUEST:
3775 p2p_invitation_req_cb(p2p, success);
3776 break;
3777 case P2P_PENDING_INVITATION_RESPONSE:
3778 p2p_invitation_resp_cb(p2p, success);
3779 break;
3780 case P2P_PENDING_DEV_DISC_REQUEST:
3781 p2p_dev_disc_req_cb(p2p, success);
3782 break;
3783 case P2P_PENDING_DEV_DISC_RESPONSE:
3784 p2p_dev_disc_resp_cb(p2p, success);
3785 break;
3786 case P2P_PENDING_GO_DISC_REQ:
3787 p2p_go_disc_req_cb(p2p, success);
3788 break;
3789 }
3790}
3791
3792
3793void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3794 unsigned int duration)
3795{
3796 if (freq == p2p->pending_client_disc_freq) {
ed496f13 3797 p2p_dbg(p2p, "Client discoverability remain-awake completed");
b22128ef
JM		 3798 p2p->pending_client_disc_freq = 0;
3799 return;
3800 }
3801
3802 if (freq != p2p->pending_listen_freq) {
ed496f13 3803 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
b22128ef
JM		 3804 freq, duration, p2p->pending_listen_freq);
3805 return;
3806 }
3807
ed496f13 3808 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
b22128ef
JM		 3809 p2p->pending_listen_sec, p2p->pending_listen_usec,
3810 p2p->pending_listen_freq);
3811 p2p->in_listen = 1;
0b8889d8 3812 p2p->drv_in_listen = freq;
b22128ef
JM		 3813 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3814 /*
3815 * Add 20 msec extra wait to avoid race condition with driver
3816 * remain-on-channel end event, i.e., give driver more time to
3817 * complete the operation before our timeout expires.
3818 */
3819 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3820 p2p->pending_listen_usec + 20000);
3821 }
3822
3823 p2p->pending_listen_freq = 0;
3824}
3825
3826
3827int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3828{
ed496f13 3829 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
b22128ef
JM		 3830 p2p->drv_in_listen = 0;
3831 if (p2p->in_listen)
3832 return 0; /* Internal timeout will trigger the next step */
3833
bb9808fa
SD		 3834 if (p2p->state == P2P_WAIT_PEER_CONNECT && p2p->go_neg_peer &&
3835 p2p->pending_listen_freq) {
3836 /*
3837 * Better wait a bit if the driver is unable to start
3838 * offchannel operation for some reason to continue with
3839 * P2P_WAIT_PEER_(IDLE/CONNECT) state transitions.
3840 */
3841 p2p_dbg(p2p,
3842 "Listen operation did not seem to start - delay idle phase to avoid busy loop");
3843 p2p_set_timeout(p2p, 0, 100000);
3844 return 1;
3845 }
3846
b22128ef 3847 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
e24cf97c 3848 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3849 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
8c00fd00 3850 p2p_go_neg_failed(p2p, -1);
e24cf97c
JM		 3851 return 0;
3852 }
3853
b22128ef
JM		 3854 p2p_set_state(p2p, P2P_CONNECT);
3855 p2p_connect_send(p2p, p2p->go_neg_peer);
3856 return 1;
3857 } else if (p2p->state == P2P_SEARCH) {
59acfe87
JM		 3858 if (p2p->p2p_scan_running) {
3859 /*
3860 * Search is already in progress. This can happen if
3861 * an Action frame RX is reported immediately after
3862 * the end of a remain-on-channel operation and the
3863 * response frame to that is sent using an offchannel
3864 * operation while in p2p_find. Avoid an attempt to
3865 * restart a scan here.
3866 */
ed496f13 3867 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
59acfe87
JM		 3868 return 1;
3869 }
3fe8b68d
JM		 3870 if (p2p->pending_listen_freq) {
3871 /*
3872 * Better wait a bit if the driver is unable to start
3873 * offchannel operation for some reason. p2p_search()
3874 * will be started from internal timeout.
3875 */
ed496f13 3876 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3fe8b68d
JM		 3877 p2p_set_timeout(p2p, 0, 100000);
3878 return 1;
3879 }
37448ede 3880 if (p2p->search_delay) {
ed496f13 3881 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 3882 p2p->search_delay);
3883 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3884 (p2p->search_delay % 1000) * 1000);
3885 return 1;
3886 }
b22128ef
JM		 3887 p2p_search(p2p);
3888 return 1;
3889 }
3890
3891 return 0;
3892}
3893
3894
3895static void p2p_timeout_connect(struct p2p_data *p2p)
3896{
3897 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
579a8098
JM		 3898 if (p2p->go_neg_peer &&
3899 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
ed496f13 3900 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
8c00fd00 3901 p2p_go_neg_failed(p2p, -1);
579a8098
JM		 3902 return;
3903 }
fb8984fd
JM		 3904 if (p2p->go_neg_peer &&
3905 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3906 p2p->go_neg_peer->connect_reqs < 120) {
ed496f13 3907 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
fb8984fd
JM		 3908 p2p_connect_send(p2p, p2p->go_neg_peer);
3909 return;
3910 }
fdd48ff6
JM		 3911 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3912 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3913 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3914 p2p_set_timeout(p2p, 0, 30000);
3915 return;
3916 }
b22128ef 3917 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
96beff11 3918 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3919}
3920
3921
3922static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3923{
3924 if (p2p->go_neg_peer) {
3925 if (p2p->drv_in_listen) {
ed496f13 3926 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
b22128ef
JM		 3927 return;
3928 }
9dac8c3e
FM		 3929
3930 if (p2p->go_neg_peer->connect_reqs >= 120) {
ed496f13 3931 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
8c00fd00 3932 p2p_go_neg_failed(p2p, -1);
9dac8c3e
FM		 3933 return;
3934 }
3935
b22128ef
JM		 3936 p2p_set_state(p2p, P2P_CONNECT);
3937 p2p_connect_send(p2p, p2p->go_neg_peer);
3938 } else
3939 p2p_set_state(p2p, P2P_IDLE);
3940}
3941
3942
3943static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3944{
b22128ef 3945 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
a2d63657
RR		 3946
3947 if (p2p->cfg->is_concurrent_session_active &&
3948 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3949 p2p_set_timeout(p2p, 0, 500000);
3950 else
3951 p2p_set_timeout(p2p, 0, 200000);
b22128ef
JM		 3952}
3953
3954
3955static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3956{
3957 struct p2p_device *dev = p2p->go_neg_peer;
3958
3959 if (dev == NULL) {
ed496f13 3960 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
b22128ef
JM		 3961 return;
3962 }
3963
ed496f13 3964 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
b22128ef 3965 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
96beff11 3966 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 3967}
3968
3969
3970static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3971{
ed496f13 3972 p2p_dbg(p2p, "Service Discovery Query timeout");
b22128ef
JM		 3973 if (p2p->sd_peer) {
3974 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
b22128ef
JM		 3975 p2p->sd_peer = NULL;
3976 }
3977 p2p_continue_find(p2p);
3978}
3979
3980
3981static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3982{
ed496f13 3983 p2p_dbg(p2p, "Provision Discovery Request timeout");
b22128ef
JM		 3984 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3985 p2p_continue_find(p2p);
3986}
3987
3988
6b56cc2d
JS		 3989static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3990{
ab8ee776
KV		 3991 u32 adv_id = 0;
3992 u8 *adv_mac = NULL;
3993
6b56cc2d
JS		 3994 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3995
3996 /*
3997 * For user initiated PD requests that we have not gotten any responses
3998 * for while in IDLE state, we retry them a couple of times before
3999 * giving up.
4000 */
4001 if (!p2p->user_initiated_pd)
4002 return;
4003
ed496f13 4004 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
6b56cc2d
JS		 4005
4006 if (p2p->pd_retries) {
4007 p2p->pd_retries--;
4008 p2p_retry_pd(p2p);
4009 } else {
175171ac
JM		 4010 struct p2p_device *dev;
4011 int for_join = 0;
4012
4013 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
4014 if (os_memcmp(p2p->pending_pd_devaddr,
4015 dev->info.p2p_device_addr, ETH_ALEN) != 0)
4016 continue;
4017 if (dev->req_config_methods &&
4018 (dev->flags & P2P_DEV_PD_FOR_JOIN))
4019 for_join = 1;
4020 }
4021
ab8ee776
KV		 4022 if (p2p->p2ps_prov) {
4023 adv_id = p2p->p2ps_prov->adv_id;
4024 adv_mac = p2p->p2ps_prov->adv_mac;
4025 }
4026
349b213c
JS		 4027 if (p2p->cfg->prov_disc_fail)
4028 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
4029 p2p->pending_pd_devaddr,
175171ac
JM		 4030 for_join ?
4031 P2P_PROV_DISC_TIMEOUT_JOIN :
ab8ee776
KV		 4032 P2P_PROV_DISC_TIMEOUT,
4033 adv_id, adv_mac, NULL);
6b56cc2d
JS		 4034 p2p_reset_pending_pd(p2p);
4035 }
4036}
4037
4038
b22128ef
JM		 4039static void p2p_timeout_invite(struct p2p_data *p2p)
4040{
4041 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
4042 p2p_set_state(p2p, P2P_INVITE_LISTEN);
04d8dad5
JM		 4043 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
4044 /*
4045 * Better remain on operating channel instead of listen channel
4046 * when running a group.
4047 */
ed496f13 4048 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
04d8dad5
JM		 4049 p2p_set_timeout(p2p, 0, 100000);
4050 return;
4051 }
96beff11 4052 p2p_listen_in_find(p2p, 0);
b22128ef
JM		 4053}
4054
4055
4056static void p2p_timeout_invite_listen(struct p2p_data *p2p)
4057{
4058 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
4059 p2p_set_state(p2p, P2P_INVITE);
4060 p2p_invite_send(p2p, p2p->invite_peer,
8e9f53c3 4061 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
b22128ef
JM		 4062 } else {
4063 if (p2p->invite_peer) {
ed496f13 4064 p2p_dbg(p2p, "Invitation Request retry limit reached");
b22128ef
JM		 4065 if (p2p->cfg->invitation_result)
4066 p2p->cfg->invitation_result(
dbca75f8 4067 p2p->cfg->cb_ctx, -1, NULL, NULL,
dcd25d4c 4068 p2p->invite_peer->info.p2p_device_addr,
41d5ce9e 4069 0, 0);
b22128ef
JM		 4070 }
4071 p2p_set_state(p2p, P2P_IDLE);
4072 }
4073}
4074
4075
4076static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
4077{
4078 struct p2p_data *p2p = eloop_ctx;
4079
ed496f13 4080 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 4081
4082 p2p->in_listen = 0;
a902d5a6
CM		 4083 if (p2p->drv_in_listen) {
4084 p2p_dbg(p2p, "Driver is still in listen state - stop it");
4085 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
4086 }
b22128ef
JM		 4087
4088 switch (p2p->state) {
4089 case P2P_IDLE:
6b56cc2d
JS		 4090 /* Check if we timed out waiting for PD req */
4091 if (p2p->pending_action_state == P2P_PENDING_PD)
4092 p2p_timeout_prov_disc_req(p2p);
b22128ef
JM		 4093 break;
4094 case P2P_SEARCH:
6b56cc2d
JS		 4095 /* Check if we timed out waiting for PD req */
4096 if (p2p->pending_action_state == P2P_PENDING_PD)
4097 p2p_timeout_prov_disc_req(p2p);
37448ede 4098 if (p2p->search_delay && !p2p->in_search_delay) {
ed496f13 4099 p2p_dbg(p2p, "Delay search operation by %u ms",
37448ede
JM		 4100 p2p->search_delay);
4101 p2p->in_search_delay = 1;
4102 p2p_set_timeout(p2p, p2p->search_delay / 1000,
4103 (p2p->search_delay % 1000) * 1000);
4104 break;
4105 }
4106 p2p->in_search_delay = 0;
b22128ef
JM		 4107 p2p_search(p2p);
4108 break;
4109 case P2P_CONNECT:
4110 p2p_timeout_connect(p2p);
4111 break;
4112 case P2P_CONNECT_LISTEN:
4113 p2p_timeout_connect_listen(p2p);
4114 break;
4115 case P2P_GO_NEG:
4116 break;
4117 case P2P_LISTEN_ONLY:
6b56cc2d
JS		 4118 /* Check if we timed out waiting for PD req */
4119 if (p2p->pending_action_state == P2P_PENDING_PD)
4120 p2p_timeout_prov_disc_req(p2p);
4121
b22128ef 4122 if (p2p->ext_listen_only) {
ed496f13 4123 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
b22128ef
JM		 4124 p2p->ext_listen_only = 0;
4125 p2p_set_state(p2p, P2P_IDLE);
4126 }
4127 break;
4128 case P2P_WAIT_PEER_CONNECT:
4129 p2p_timeout_wait_peer_connect(p2p);
4130 break;
4131 case P2P_WAIT_PEER_IDLE:
4132 p2p_timeout_wait_peer_idle(p2p);
4133 break;
4134 case P2P_SD_DURING_FIND:
4135 p2p_timeout_sd_during_find(p2p);
4136 break;
4137 case P2P_PROVISIONING:
4138 break;
4139 case P2P_PD_DURING_FIND:
4140 p2p_timeout_prov_disc_during_find(p2p);
4141 break;
4142 case P2P_INVITE:
4143 p2p_timeout_invite(p2p);
4144 break;
4145 case P2P_INVITE_LISTEN:
4146 p2p_timeout_invite_listen(p2p);
4147 break;
4148 }
4149}
4150
4151
4152int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
4153{
4154 struct p2p_device *dev;
4155
4156 dev = p2p_get_device(p2p, peer_addr);
ed496f13
JM		 4157 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
4158 MACSTR, MAC2STR(peer_addr));
b22128ef 4159 if (dev == NULL) {
ed496f13 4160 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
b22128ef
JM		 4161 return -1;
4162 }
4163 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
4164 dev->flags |= P2P_DEV_USER_REJECTED;
4165 return 0;
4166}
4167
4168
e5a359cf 4169const char * p2p_wps_method_text(enum p2p_wps_method method)
b22128ef
JM		 4170{
4171 switch (method) {
4172 case WPS_NOT_READY:
4173 return "not-ready";
b22128ef
JM		 4174 case WPS_PIN_DISPLAY:
4175 return "Display";
4176 case WPS_PIN_KEYPAD:
4177 return "Keypad";
4178 case WPS_PBC:
4179 return "PBC";
c00ab85f
JM		 4180 case WPS_NFC:
4181 return "NFC";
4f88fc04
BG		 4182 case WPS_P2PS:
4183 return "P2PS";
b22128ef
JM		 4184 }
4185
4186 return "??";
4187}
4188
4189
4190static const char * p2p_go_state_text(enum p2p_go_state go_state)
4191{
4192 switch (go_state) {
4193 case UNKNOWN_GO:
4194 return "unknown";
4195 case LOCAL_GO:
4196 return "local";
4197 case REMOTE_GO:
4198 return "remote";
4199 }
4200
4201 return "??";
4202}
4203
4204
b3ffc80b
JM		 4205const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
4206 const u8 *addr, int next)
b22128ef
JM		 4207{
4208 struct p2p_device *dev;
b22128ef
JM		 4209
4210 if (addr)
4211 dev = p2p_get_device(p2p, addr);
4212 else
4213 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4214
4215 if (dev && next) {
4216 dev = dl_list_first(&dev->list, struct p2p_device, list);
4217 if (&dev->list == &p2p->devices)
4218 dev = NULL;
4219 }
4220
4221 if (dev == NULL)
b3ffc80b
JM		 4222 return NULL;
4223
4224 return &dev->info;
4225}
4226
4227
4228int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
4229 char *buf, size_t buflen)
4230{
4231 struct p2p_device *dev;
4232 int res;
4233 char *pos, *end;
acb69cec 4234 struct os_reltime now;
b3ffc80b
JM		 4235
4236 if (info == NULL)
b22128ef
JM		 4237 return -1;
4238
b3ffc80b
JM		 4239 dev = (struct p2p_device *) (((u8 *) info) -
4240 offsetof(struct p2p_device, info));
4241
b22128ef
JM		 4242 pos = buf;
4243 end = buf + buflen;
4244
acb69cec 4245 os_get_reltime(&now);
b22128ef
JM		 4246 res = os_snprintf(pos, end - pos,
4247 "age=%d\n"
4248 "listen_freq=%d\n"
b22128ef
JM		 4249 "wps_method=%s\n"
4250 "interface_addr=" MACSTR "\n"
4251 "member_in_go_dev=" MACSTR "\n"
4252 "member_in_go_iface=" MACSTR "\n"
b22128ef
JM		 4253 "go_neg_req_sent=%d\n"
4254 "go_state=%s\n"
4255 "dialog_token=%u\n"
4256 "intended_addr=" MACSTR "\n"
4257 "country=%c%c\n"
4258 "oper_freq=%d\n"
4259 "req_config_methods=0x%x\n"
8f524099 4260 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
b22128ef 4261 "status=%d\n"
b22128ef
JM		 4262 "invitation_reqs=%u\n",
4263 (int) (now.sec - dev->last_seen.sec),
4264 dev->listen_freq,
b22128ef
JM		 4265 p2p_wps_method_text(dev->wps_method),
4266 MAC2STR(dev->interface_addr),
4267 MAC2STR(dev->member_in_go_dev),
4268 MAC2STR(dev->member_in_go_iface),
b22128ef
JM		 4269 dev->go_neg_req_sent,
4270 p2p_go_state_text(dev->go_state),
4271 dev->dialog_token,
4272 MAC2STR(dev->intended_addr),
4273 dev->country[0] ? dev->country[0] : '_',
4274 dev->country[1] ? dev->country[1] : '_',
4275 dev->oper_freq,
4276 dev->req_config_methods,
4277 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
4278 "[PROBE_REQ_ONLY]" : "",
4279 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
4280 dev->flags & P2P_DEV_NOT_YET_READY ?
4281 "[NOT_YET_READY]" : "",
b22128ef
JM		 4282 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
4283 "[PD_PEER_DISPLAY]" : "",
4284 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
4285 "[PD_PEER_KEYPAD]" : "",
1300cc8e
KV		 4286 dev->flags & P2P_DEV_PD_PEER_P2PS ?
4287 "[PD_PEER_P2PS]" : "",
b22128ef
JM		 4288 dev->flags & P2P_DEV_USER_REJECTED ?
4289 "[USER_REJECTED]" : "",
4290 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
4291 "[PEER_WAITING_RESPONSE]" : "",
4292 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
4293 "[PREFER_PERSISTENT_GROUP]" : "",
4294 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
4295 "[WAIT_GO_NEG_RESPONSE]" : "",
4296 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
4297 "[WAIT_GO_NEG_CONFIRM]" : "",
4298 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
4299 "[GROUP_CLIENT_ONLY]" : "",
d5b20a73 4300 dev->flags & P2P_DEV_FORCE_FREQ ?
10c4edde
JM		 4301 "[FORCE_FREQ]" : "",
4302 dev->flags & P2P_DEV_PD_FOR_JOIN ?
4303 "[PD_FOR_JOIN]" : "",
8f524099
AO		 4304 dev->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT ?
4305 "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
b22128ef 4306 dev->status,
b22128ef 4307 dev->invitation_reqs);
d85e1fc8 4308 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4309 return pos - buf;
4310 pos += res;
4311
4312 if (dev->ext_listen_period) {
4313 res = os_snprintf(pos, end - pos,
4314 "ext_listen_period=%u\n"
4315 "ext_listen_interval=%u\n",
4316 dev->ext_listen_period,
4317 dev->ext_listen_interval);
d85e1fc8 4318 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4319 return pos - buf;
4320 pos += res;
4321 }
4322
4323 if (dev->oper_ssid_len) {
4324 res = os_snprintf(pos, end - pos,
4325 "oper_ssid=%s\n",
4326 wpa_ssid_txt(dev->oper_ssid,
4327 dev->oper_ssid_len));
d85e1fc8 4328 if (os_snprintf_error(end - pos, res))
b22128ef
JM		 4329 return pos - buf;
4330 pos += res;
4331 }
4332
9675ce35
JM		 4333#ifdef CONFIG_WIFI_DISPLAY
4334 if (dev->info.wfd_subelems) {
4335 res = os_snprintf(pos, end - pos, "wfd_subelems=");
d85e1fc8 4336 if (os_snprintf_error(end - pos, res))
9675ce35
JM		 4337 return pos - buf;
4338 pos += res;
4339
4340 pos += wpa_snprintf_hex(pos, end - pos,
4341 wpabuf_head(dev->info.wfd_subelems),
4342 wpabuf_len(dev->info.wfd_subelems));
4343
4344 res = os_snprintf(pos, end - pos, "\n");
d85e1fc8 4345 if (os_snprintf_error(end - pos, res))
9675ce35
JM		 4346 return pos - buf;
4347 pos += res;
4348 }
4349#endif /* CONFIG_WIFI_DISPLAY */
4350
b22128ef
JM		 4351 return pos - buf;
4352}
4353
4354
b3bcc0f5
JM		 4355int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
4356{
4357 return p2p_get_device(p2p, addr) != NULL;
4358}
4359
4360
b22128ef
JM		 4361void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
4362{
4363 if (enabled) {
ed496f13 4364 p2p_dbg(p2p, "Client discoverability enabled");
b22128ef
JM		 4365 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4366 } else {
ed496f13 4367 p2p_dbg(p2p, "Client discoverability disabled");
b22128ef
JM		 4368 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4369 }
4370}
4371
4372
4373static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
4374 u32 duration2, u32 interval2)
4375{
4376 struct wpabuf *req;
4377 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
4378 u8 *len;
4379
4380 req = wpabuf_alloc(100);
4381 if (req == NULL)
4382 return NULL;
4383
4384 if (duration1 || interval1) {
4385 os_memset(&desc1, 0, sizeof(desc1));
4386 desc1.count_type = 1;
4387 desc1.duration = duration1;
4388 desc1.interval = interval1;
4389 ptr1 = &desc1;
4390
4391 if (duration2 || interval2) {
4392 os_memset(&desc2, 0, sizeof(desc2));
4393 desc2.count_type = 2;
4394 desc2.duration = duration2;
4395 desc2.interval = interval2;
4396 ptr2 = &desc2;
4397 }
4398 }
4399
4400 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
4401 len = p2p_buf_add_ie_hdr(req);
4402 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
4403 p2p_buf_update_ie_hdr(req, len);
4404
4405 return req;
4406}
4407
4408
4409int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
4410 const u8 *own_interface_addr, unsigned int freq,
4411 u32 duration1, u32 interval1, u32 duration2,
4412 u32 interval2)
4413{
4414 struct wpabuf *req;
4415
ed496f13
JM		 4416 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
4417 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
4418 "dur2=%u int2=%u",
b22128ef
JM		 4419 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
4420 freq, duration1, interval1, duration2, interval2);
4421
4422 req = p2p_build_presence_req(duration1, interval1, duration2,
4423 interval2);
4424 if (req == NULL)
4425 return -1;
4426
4427 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 4428 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
4429 go_interface_addr,
4430 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
ed496f13 4431 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 4432 }
4433 wpabuf_free(req);
4434
4435 return 0;
4436}
4437
4438
4439static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
4440 size_t noa_len, u8 dialog_token)
4441{
4442 struct wpabuf *resp;
4443 u8 *len;
4444
4445 resp = wpabuf_alloc(100 + noa_len);
4446 if (resp == NULL)
4447 return NULL;
4448
4449 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
4450 len = p2p_buf_add_ie_hdr(resp);
4451 p2p_buf_add_status(resp, status);
4452 if (noa) {
4453 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
4454 wpabuf_put_le16(resp, noa_len);
4455 wpabuf_put_data(resp, noa, noa_len);
4456 } else
4457 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
4458 p2p_buf_update_ie_hdr(resp, len);
4459
4460 return resp;
4461}
4462
4463
4464static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
4465 const u8 *sa, const u8 *data, size_t len,
4466 int rx_freq)
4467{
4468 struct p2p_message msg;
4469 u8 status;
4470 struct wpabuf *resp;
4471 size_t g;
4472 struct p2p_group *group = NULL;
4473 int parsed = 0;
4474 u8 noa[50];
4475 int noa_len;
4476
ed496f13 4477 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
b22128ef
JM		 4478
4479 for (g = 0; g < p2p->num_groups; g++) {
4480 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
4481 ETH_ALEN) == 0) {
4482 group = p2p->groups[g];
4483 break;
4484 }
4485 }
4486 if (group == NULL) {
ed496f13 4487 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
b22128ef
JM		 4488 MACSTR, MAC2STR(da));
4489 return;
4490 }
4491
4492 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 4493 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
b22128ef
JM		 4494 status = P2P_SC_FAIL_INVALID_PARAMS;
4495 goto fail;
4496 }
4497 parsed = 1;
4498
4499 if (msg.noa == NULL) {
ed496f13 4500 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
b22128ef
JM		 4501 status = P2P_SC_FAIL_INVALID_PARAMS;
4502 goto fail;
4503 }
4504
4505 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
4506
4507fail:
4508 if (p2p->cfg->get_noa)
4509 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
4510 sizeof(noa));
4511 else
4512 noa_len = -1;
4513 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
4514 noa_len > 0 ? noa_len : 0,
4515 msg.dialog_token);
4516 if (parsed)
4517 p2p_parse_free(&msg);
4518 if (resp == NULL)
4519 return;
4520
4521 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3f9285ff
JM		 4522 if (p2p_send_action(p2p, rx_freq, sa, da, da,
4523 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
ed496f13 4524 p2p_dbg(p2p, "Failed to send Action frame");
b22128ef
JM		 4525 }
4526 wpabuf_free(resp);
4527}
4528
4529
4530static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
4531 const u8 *sa, const u8 *data, size_t len)
4532{
4533 struct p2p_message msg;
4534
ed496f13 4535 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
b22128ef
JM		 4536
4537 if (p2p_parse(data, len, &msg) < 0) {
ed496f13 4538 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
b22128ef
JM		 4539 return;
4540 }
4541
4542 if (msg.status == NULL || msg.noa == NULL) {
ed496f13 4543 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
b22128ef
JM		 4544 p2p_parse_free(&msg);
4545 return;
4546 }
4547
c64e3a08
JM		 4548 if (p2p->cfg->presence_resp) {
4549 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
4550 msg.noa, msg.noa_len);
4551 }
4552
b22128ef 4553 if (*msg.status) {
ed496f13 4554 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
b22128ef
JM		 4555 *msg.status);
4556 p2p_parse_free(&msg);
4557 return;
4558 }
4559
ed496f13 4560 p2p_dbg(p2p, "P2P Presence Request was accepted");
b22128ef
JM		 4561 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
4562 msg.noa, msg.noa_len);
4563 /* TODO: process NoA */
4564 p2p_parse_free(&msg);
4565}
4566
4567
4568static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4569{
4570 struct p2p_data *p2p = eloop_ctx;
4571
4572 if (p2p->ext_listen_interval) {
4573 /* Schedule next extended listen timeout */
4574 eloop_register_timeout(p2p->ext_listen_interval_sec,
4575 p2p->ext_listen_interval_usec,
4576 p2p_ext_listen_timeout, p2p, NULL);
4577 }
4578
7e68be38
JM		 4579 if ((p2p->cfg->is_p2p_in_progress &&
4580 p2p->cfg->is_p2p_in_progress(p2p->cfg->cb_ctx)) ||
4581 (p2p->pending_action_state == P2P_PENDING_PD &&
4582 p2p->pd_retries > 0)) {
0f1034e3
SD		 4583 p2p_dbg(p2p, "Operation in progress - skip Extended Listen timeout (%s)",
4584 p2p_state_txt(p2p->state));
4585 return;
4586 }
4587
f7a69057
JM		 4588 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
4589 /*
4590 * This should not really happen, but it looks like the Listen
4591 * command may fail is something else (e.g., a scan) was
4592 * running at an inconvenient time. As a workaround, allow new
4593 * Extended Listen operation to be started.
4594 */
ed496f13 4595 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
f7a69057
JM		 4596 p2p->ext_listen_only = 0;
4597 p2p_set_state(p2p, P2P_IDLE);
4598 }
4599
b22128ef 4600 if (p2p->state != P2P_IDLE) {
ed496f13 4601 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
b22128ef
JM		 4602 return;
4603 }
4604
ed496f13 4605 p2p_dbg(p2p, "Extended Listen timeout");
b22128ef
JM		 4606 p2p->ext_listen_only = 1;
4607 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
ed496f13 4608 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
b22128ef
JM		 4609 p2p->ext_listen_only = 0;
4610 }
4611}
4612
4613
4614int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
4615 unsigned int interval)
4616{
4617 if (period > 65535 || interval > 65535 || period > interval ||
4618 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
ed496f13
JM		 4619 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
4620 period, interval);
b22128ef
JM		 4621 return -1;
4622 }
4623
4624 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
4625
4626 if (interval == 0) {
ed496f13 4627 p2p_dbg(p2p, "Disabling Extended Listen Timing");
b22128ef
JM		 4628 p2p->ext_listen_period = 0;
4629 p2p->ext_listen_interval = 0;
4630 return 0;
4631 }
4632
ed496f13
JM		 4633 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4634 period, interval);
b22128ef
JM		 4635 p2p->ext_listen_period = period;
4636 p2p->ext_listen_interval = interval;
4637 p2p->ext_listen_interval_sec = interval / 1000;
4638 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
4639
4640 eloop_register_timeout(p2p->ext_listen_interval_sec,
4641 p2p->ext_listen_interval_usec,
4642 p2p_ext_listen_timeout, p2p, NULL);
4643
4644 return 0;
4645}
4646
4647
4648void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4649 const u8 *ie, size_t ie_len)
4650{
4651 struct p2p_message msg;
4652
4653 if (bssid == NULL || ie == NULL)
4654 return;
4655
4656 os_memset(&msg, 0, sizeof(msg));
4657 if (p2p_parse_ies(ie, ie_len, &msg))
4658 return;
04c366cb
EL		 4659 if (msg.minor_reason_code == NULL) {
4660 p2p_parse_free(&msg);
b22128ef 4661 return;
04c366cb 4662 }
b22128ef 4663
ed496f13 4664 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
b22128ef
JM		 4665 " reason_code=%u minor_reason_code=%u",
4666 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4667
4668 p2p_parse_free(&msg);
4669}
4670
4671
4672void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4673 const u8 *ie, size_t ie_len)
4674{
4675 struct p2p_message msg;
4676
4677 if (bssid == NULL || ie == NULL)
4678 return;
4679
4680 os_memset(&msg, 0, sizeof(msg));
4681 if (p2p_parse_ies(ie, ie_len, &msg))
4682 return;
04c366cb
EL		 4683 if (msg.minor_reason_code == NULL) {
4684 p2p_parse_free(&msg);
b22128ef 4685 return;
04c366cb 4686 }
b22128ef 4687
ed496f13 4688 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
b22128ef
JM		 4689 " reason_code=%u minor_reason_code=%u",
4690 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
4691
4692 p2p_parse_free(&msg);
4693}
4694
4695
4696void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
4697{
4698 if (enabled) {
ed496f13 4699 p2p_dbg(p2p, "Managed P2P Device operations enabled");
b22128ef
JM		 4700 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
4701 } else {
ed496f13 4702 p2p_dbg(p2p, "Managed P2P Device operations disabled");
b22128ef
JM		 4703 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
4704 }
4705}
4706
4707
1595eb93 4708int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class,
59fa2053
PK		 4709 u8 *op_channel,
4710 struct wpa_freq_range_list *avoid_list,
4711 struct wpa_freq_range_list *disallow_list)
1595eb93 4712{
59fa2053
PK		 4713 return p2p_channel_random_social(&p2p->channels, op_class, op_channel,
4714 avoid_list, disallow_list);
1595eb93
AM		 4715}
4716
4717
e3bd6e9d
IP		 4718int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
4719 u8 forced)
b22128ef 4720{
9ccd9165 4721 if (p2p_channel_to_freq(reg_class, channel) < 0)
b22128ef
JM		 4722 return -1;
4723
e3bd6e9d
IP		 4724 /*
4725 * Listen channel was set in configuration or set by control interface;
4726 * cannot override it.
4727 */
abe96d06
JM		 4728 if (p2p->cfg->channel_forced && forced == 0) {
4729 p2p_dbg(p2p,
4730 "Listen channel was previously configured - do not override based on optimization");
e3bd6e9d 4731 return -1;
abe96d06
JM		 4732 }
4733
4734 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
4735 reg_class, channel);
e3bd6e9d
IP		 4736
4737 if (p2p->state == P2P_IDLE) {
4738 p2p->cfg->reg_class = reg_class;
4739 p2p->cfg->channel = channel;
4740 p2p->cfg->channel_forced = forced;
4741 } else {
4742 p2p_dbg(p2p, "Defer setting listen channel");
4743 p2p->pending_reg_class = reg_class;
4744 p2p->pending_channel = channel;
4745 p2p->pending_channel_forced = forced;
4746 }
b22128ef
JM		 4747
4748 return 0;
4749}
4750
4751
e3bd6e9d
IP		 4752u8 p2p_get_listen_channel(struct p2p_data *p2p)
4753{
4754 return p2p->cfg->channel;
4755}
4756
4757
b22128ef
JM		 4758int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
4759{
ed496f13 4760 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
b22128ef
JM		 4761 if (postfix == NULL) {
4762 p2p->cfg->ssid_postfix_len = 0;
4763 return 0;
4764 }
4765 if (len > sizeof(p2p->cfg->ssid_postfix))
4766 return -1;
4767 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
4768 p2p->cfg->ssid_postfix_len = len;
4769 return 0;
4770}
4771
4772
2463ba70
JS		 4773int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
4774 int cfg_op_channel)
4775{
9ccd9165 4776 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
2463ba70
JS		 4777 return -1;
4778
ed496f13
JM		 4779 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
4780 op_reg_class, op_channel);
2463ba70
JS		 4781 p2p->cfg->op_reg_class = op_reg_class;
4782 p2p->cfg->op_channel = op_channel;
4783 p2p->cfg->cfg_op_channel = cfg_op_channel;
4784 return 0;
4785}
4786
4787
21d996f7
JM		 4788int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
4789 const struct p2p_channel *pref_chan)
4790{
4791 struct p2p_channel *n;
4792
4793 if (pref_chan) {
a1f11e34
JB		 4794 n = os_memdup(pref_chan,
4795 num_pref_chan * sizeof(struct p2p_channel));
21d996f7
JM		 4796 if (n == NULL)
4797 return -1;
21d996f7
JM		 4798 } else
4799 n = NULL;
4800
4801 os_free(p2p->cfg->pref_chan);
4802 p2p->cfg->pref_chan = n;
4803 p2p->cfg->num_pref_chan = num_pref_chan;
4804
4805 return 0;
4806}
4807
4808
556b30da
JM		 4809int p2p_set_no_go_freq(struct p2p_data *p2p,
4810 const struct wpa_freq_range_list *list)
4811{
4812 struct wpa_freq_range *tmp;
4813
4814 if (list == NULL || list->num == 0) {
4815 os_free(p2p->no_go_freq.range);
4816 p2p->no_go_freq.range = NULL;
4817 p2p->no_go_freq.num = 0;
4818 return 0;
4819 }
4820
4821 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
4822 if (tmp == NULL)
4823 return -1;
4824 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
4825 os_free(p2p->no_go_freq.range);
4826 p2p->no_go_freq.range = tmp;
4827 p2p->no_go_freq.num = list->num;
4828 p2p_dbg(p2p, "Updated no GO chan list");
4829
4830 return 0;
4831}
4832
4833
b22128ef
JM		 4834int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4835 u8 *iface_addr)
4836{
4837 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4838 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4839 return -1;
4840 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4841 return 0;
4842}
80c9582a
JM		 4843
4844
4147a2cc
JM		 4845int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4846 u8 *dev_addr)
4847{
4848 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4849 if (dev == NULL)
4850 return -1;
c5db8e51 4851 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4147a2cc
JM		 4852 return 0;
4853}
4854
4855
80c9582a
JM		 4856void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4857{
4858 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4859 if (is_zero_ether_addr(p2p->peer_filter))
ed496f13 4860 p2p_dbg(p2p, "Disable peer filter");
80c9582a 4861 else
ed496f13
JM		 4862 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4863 MAC2STR(p2p->peer_filter));
80c9582a 4864}
72044390
JM		 4865
4866
4867void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4868{
ed496f13 4869 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
72044390
JM		 4870 if (p2p->cross_connect == enabled)
4871 return;
4872 p2p->cross_connect = enabled;
4873 /* TODO: may need to tear down any action group where we are GO(?) */
4874}
f8d0131a
JM		 4875
4876
4877int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4878{
4879 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4880 if (dev == NULL)
4881 return -1;
4882 if (dev->oper_freq <= 0)
4883 return -1;
4884 return dev->oper_freq;
4885}
0f66abd2
SS		 4886
4887
4888void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4889{
ed496f13 4890 p2p_dbg(p2p, "Intra BSS distribution %s",
0f66abd2
SS		 4891 enabled ? "enabled" : "disabled");
4892 p2p->cfg->p2p_intra_bss = enabled;
4893}
b5c9da8d
JM		 4894
4895
51e9f228
JM		 4896void p2p_update_channel_list(struct p2p_data *p2p,
4897 const struct p2p_channels *chan,
4898 const struct p2p_channels *cli_chan)
b5c9da8d 4899{
ed496f13 4900 p2p_dbg(p2p, "Update channel list");
b5c9da8d 4901 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
51e9f228
JM		 4902 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4903 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4904 sizeof(struct p2p_channels));
4905 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
b5c9da8d 4906}
3f9285ff
JM		 4907
4908
4909int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4910 const u8 *src, const u8 *bssid, const u8 *buf,
4911 size_t len, unsigned int wait_time)
4912{
947b5a15
JM		 4913 int res, scheduled;
4914
947b5a15
JM		 4915 res = p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4916 buf, len, wait_time, &scheduled);
4917 if (res == 0 && scheduled && p2p->in_listen && freq > 0 &&
4918 (unsigned int) p2p->drv_in_listen != freq) {
4919 p2p_dbg(p2p,
4920 "Stop listen on %d MHz to allow a frame to be sent immediately on %d MHz",
4921 p2p->drv_in_listen, freq);
4922 p2p_stop_listen_for_freq(p2p, freq);
4923 }
4924 return res;
3f9285ff 4925}
7cfc4ac3
AGS		 4926
4927
4928void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4929 int freq_overall)
4930{
ed496f13
JM		 4931 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4932 freq_24, freq_5, freq_overall);
7cfc4ac3
AGS		 4933 p2p->best_freq_24 = freq_24;
4934 p2p->best_freq_5 = freq_5;
4935 p2p->best_freq_overall = freq_overall;
4936}
231bbd03
SS		 4937
4938
6cb27aa8
JM		 4939void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4940{
ed496f13 4941 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
6cb27aa8
JM		 4942 p2p->own_freq_preference = freq;
4943}
4944
4945
231bbd03
SS		 4946const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4947{
4948 if (p2p == NULL || p2p->go_neg_peer == NULL)
4949 return NULL;
c5db8e51 4950 return p2p->go_neg_peer->info.p2p_device_addr;
231bbd03 4951}
c165d81e
JB		 4952
4953
4954const struct p2p_peer_info *
4955p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4956{
4957 struct p2p_device *dev;
4958
4959 if (addr) {
4960 dev = p2p_get_device(p2p, addr);
4961 if (!dev)
4962 return NULL;
4963
4964 if (!next) {
4965 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4966 return NULL;
4967
4968 return &dev->info;
4969 } else {
4970 do {
4971 dev = dl_list_first(&dev->list,
4972 struct p2p_device,
4973 list);
0bceb8d6 4974 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4975 return NULL;
4976 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4977 }
4978 } else {
4979 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4980 if (!dev)
4981 return NULL;
4982 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4983 dev = dl_list_first(&dev->list,
4984 struct p2p_device,
4985 list);
0bceb8d6 4986 if (!dev || &dev->list == &p2p->devices)
c165d81e
JB		 4987 return NULL;
4988 }
4989 }
4990
4991 return &dev->info;
4992}
303f60d3
JM		 4993
4994
4995int p2p_in_progress(struct p2p_data *p2p)
4996{
4997 if (p2p == NULL)
4998 return 0;
1b5d4714 4999 if (p2p->state == P2P_SEARCH)
99fcd404 5000 return 2;
fc6997b3 5001 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
303f60d3 5002}
4f219667
JM		 5003
5004
5005void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
5006 u8 client_timeout)
5007{
5008 if (p2p) {
5009 p2p->go_timeout = go_timeout;
5010 p2p->client_timeout = client_timeout;
5011 }
5012}
99fcd404
JM		 5013
5014
9675ce35
JM		 5015#ifdef CONFIG_WIFI_DISPLAY
5016
5017static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
5018{
5019 size_t g;
5020 struct p2p_group *group;
5021
5022 for (g = 0; g < p2p->num_groups; g++) {
5023 group = p2p->groups[g];
3342c263 5024 p2p_group_force_beacon_update_ies(group);
9675ce35
JM		 5025 }
5026}
5027
5028
5029int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
5030{
5031 wpabuf_free(p2p->wfd_ie_beacon);
5032 p2p->wfd_ie_beacon = ie;
5033 p2p_update_wfd_ie_groups(p2p);
5034 return 0;
5035}
5036
5037
5038int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
5039{
5040 wpabuf_free(p2p->wfd_ie_probe_req);
5041 p2p->wfd_ie_probe_req = ie;
5042 return 0;
5043}
5044
5045
5046int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
5047{
5048 wpabuf_free(p2p->wfd_ie_probe_resp);
5049 p2p->wfd_ie_probe_resp = ie;
5050 p2p_update_wfd_ie_groups(p2p);
5051 return 0;
5052}
5053
5054
5055int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
5056{
5057 wpabuf_free(p2p->wfd_ie_assoc_req);
5058 p2p->wfd_ie_assoc_req = ie;
5059 return 0;
5060}
5061
5062
5063int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
5064{
5065 wpabuf_free(p2p->wfd_ie_invitation);
5066 p2p->wfd_ie_invitation = ie;
5067 return 0;
5068}
5069
5070
5071int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
5072{
5073 wpabuf_free(p2p->wfd_ie_prov_disc_req);
5074 p2p->wfd_ie_prov_disc_req = ie;
5075 return 0;
5076}
5077
5078
5079int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
5080{
5081 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
5082 p2p->wfd_ie_prov_disc_resp = ie;
5083 return 0;
5084}
5085
5086
5087int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
5088{
5089 wpabuf_free(p2p->wfd_ie_go_neg);
5090 p2p->wfd_ie_go_neg = ie;
5091 return 0;
5092}
5093
5094
5095int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
5096{
5097 wpabuf_free(p2p->wfd_dev_info);
5098 if (elem) {
5099 p2p->wfd_dev_info = wpabuf_dup(elem);
5100 if (p2p->wfd_dev_info == NULL)
5101 return -1;
5102 } else
5103 p2p->wfd_dev_info = NULL;
5104
5105 return 0;
5106}
5107
5108
e9518ae7
AHS		 5109int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
5110{
5111 wpabuf_free(p2p->wfd_r2_dev_info);
5112 if (elem) {
5113 p2p->wfd_r2_dev_info = wpabuf_dup(elem);
5114 if (p2p->wfd_r2_dev_info == NULL)
5115 return -1;
5116 } else
5117 p2p->wfd_r2_dev_info = NULL;
5118
5119 return 0;
5120}
5121
5122
9675ce35
JM		 5123int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
5124{
5125 wpabuf_free(p2p->wfd_assoc_bssid);
5126 if (elem) {
5127 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
5128 if (p2p->wfd_assoc_bssid == NULL)
5129 return -1;
5130 } else
5131 p2p->wfd_assoc_bssid = NULL;
5132
5133 return 0;
5134}
5135
5136
5137int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
5138 const struct wpabuf *elem)
5139{
5140 wpabuf_free(p2p->wfd_coupled_sink_info);
5141 if (elem) {
5142 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
5143 if (p2p->wfd_coupled_sink_info == NULL)
5144 return -1;
5145 } else
5146 p2p->wfd_coupled_sink_info = NULL;
5147
5148 return 0;
5149}
5150
5151#endif /* CONFIG_WIFI_DISPLAY */
96beff11
JM		 5152
5153
5154int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
5155 int max_disc_tu)
5156{
5157 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
5158 return -1;
5159
5160 p2p->min_disc_int = min_disc_int;
5161 p2p->max_disc_int = max_disc_int;
5162 p2p->max_disc_tu = max_disc_tu;
ed496f13
JM		 5163 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
5164 min_disc_int, max_disc_int, max_disc_tu);
96beff11
JM		 5165
5166 return 0;
5167}
ed496f13
JM		 5168
5169
5170void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
5171{
5172 va_list ap;
5173 char buf[500];
5174
5175 if (!p2p->cfg->debug_print)
5176 return;
5177
5178 va_start(ap, fmt);
5179 vsnprintf(buf, sizeof(buf), fmt, ap);
5180 buf[sizeof(buf) - 1] = '\0';
5181 va_end(ap);
5182 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
5183}
5184
5185
5186void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
5187{
5188 va_list ap;
5189 char buf[500];
5190
5191 if (!p2p->cfg->debug_print)
5192 return;
5193
5194 va_start(ap, fmt);
5195 vsnprintf(buf, sizeof(buf), fmt, ap);
5196 buf[sizeof(buf) - 1] = '\0';
5197 va_end(ap);
5198 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
5199}
5200
5201
5202void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
5203{
5204 va_list ap;
5205 char buf[500];
5206
5207 if (!p2p->cfg->debug_print)
5208 return;
5209
5210 va_start(ap, fmt);
5211 vsnprintf(buf, sizeof(buf), fmt, ap);
5212 buf[sizeof(buf) - 1] = '\0';
5213 va_end(ap);
5214 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
5215}
93588780
JM		 5216
5217
36716eef
TB		 5218void p2p_loop_on_known_peers(struct p2p_data *p2p,
5219 void (*peer_callback)(struct p2p_peer_info *peer,
5220 void *user_data),
5221 void *user_data)
5222{
5223 struct p2p_device *dev, *n;
5224
5225 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
5226 peer_callback(&dev->info, user_data);
5227 }
5228}
5229
5230
93588780
JM		 5231#ifdef CONFIG_WPS_NFC
5232
59b45d1a 5233static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
abe44e3c
JM		 5234 int client_freq,
5235 const u8 *go_dev_addr,
5236 const u8 *ssid, size_t ssid_len)
93588780
JM		 5237{
5238 struct wpabuf *buf;
5239 u8 op_class, channel;
5240 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
5241
5242 buf = wpabuf_alloc(1000);
5243 if (buf == NULL)
5244 return NULL;
5245
5246 op_class = p2p->cfg->reg_class;
5247 channel = p2p->cfg->channel;
5248
5249 p2p_buf_add_capability(buf, p2p->dev_capab &
5250 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
5251 p2p_buf_add_device_info(buf, p2p, NULL);
5252
5253 if (p2p->num_groups > 0) {
d06e9ac5 5254 int freq = p2p_group_get_freq(p2p->groups[0]);
93588780 5255 role = P2P_GO_IN_A_GROUP;
d06e9ac5
JM		 5256 if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
5257 p2p_dbg(p2p,
5258 "Unknown GO operating frequency %d MHz for NFC handover",
5259 freq);
5260 wpabuf_free(buf);
5261 return NULL;
5262 }
59b45d1a
JM		 5263 } else if (client_freq > 0) {
5264 role = P2P_CLIENT_IN_A_GROUP;
d06e9ac5
JM		 5265 if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
5266 p2p_dbg(p2p,
5267 "Unknown client operating frequency %d MHz for NFC handover",
5268 client_freq);
5269 wpabuf_free(buf);
5270 return NULL;
5271 }
93588780
JM		 5272 }
5273
5274 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
5275 channel, role);
5276
5277 if (p2p->num_groups > 0) {
5278 /* Limit number of clients to avoid very long message */
5279 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
5280 p2p_group_buf_add_id(p2p->groups[0], buf);
abe44e3c
JM		 5281 } else if (client_freq > 0 &&
5282 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
5283 ssid && ssid_len > 0) {
5284 /*
5285 * Add the optional P2P Group ID to indicate in which group this
5286 * device is a P2P Client.
5287 */
5288 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
93588780
JM		 5289 }
5290
5291 return buf;
5292}
5293
5294
59b45d1a 5295struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
abe44e3c
JM		 5296 int client_freq,
5297 const u8 *go_dev_addr,
5298 const u8 *ssid, size_t ssid_len)
93588780 5299{
abe44e3c
JM		 5300 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5301 ssid_len);
93588780
JM		 5302}
5303
5304
59b45d1a 5305struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
abe44e3c
JM		 5306 int client_freq,
5307 const u8 *go_dev_addr,
5308 const u8 *ssid, size_t ssid_len)
93588780 5309{
abe44e3c
JM		 5310 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5311 ssid_len);
93588780
JM		 5312}
5313
db6ae69e
JM		 5314
5315int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
5316 struct p2p_nfc_params *params)
5317{
5318 struct p2p_message msg;
5319 struct p2p_device *dev;
5320 const u8 *p2p_dev_addr;
59b45d1a
JM		 5321 int freq;
5322 enum p2p_role_indication role;
db6ae69e
JM		 5323
5324 params->next_step = NO_ACTION;
5325
5326 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
5327 params->p2p_attr, params->p2p_len, &msg)) {
5328 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
5329 p2p_parse_free(&msg);
5330 return -1;
5331 }
5332
5333 if (msg.p2p_device_addr)
5334 p2p_dev_addr = msg.p2p_device_addr;
5335 else if (msg.device_id)
5336 p2p_dev_addr = msg.device_id;
5337 else {
5338 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
5339 p2p_parse_free(&msg);
5340 return -1;
5341 }
5342
5343 if (msg.oob_dev_password) {
5344 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
5345 msg.oob_dev_password_len);
5346 params->oob_dev_pw_len = msg.oob_dev_password_len;
5347 }
5348
5349 dev = p2p_create_device(p2p, p2p_dev_addr);
5350 if (dev == NULL) {
5351 p2p_parse_free(&msg);
5352 return -1;
5353 }
5354
5355 params->peer = &dev->info;
5356
5357 os_get_reltime(&dev->last_seen);
5358 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
5359 p2p_copy_wps_info(p2p, dev, 0, &msg);
5360
59b45d1a
JM		 5361 if (!msg.oob_go_neg_channel) {
5362 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
6b5147af 5363 p2p_parse_free(&msg);
59b45d1a
JM		 5364 return -1;
5365 }
db6ae69e 5366
59b45d1a
JM		 5367 if (msg.oob_go_neg_channel[3] == 0 &&
5368 msg.oob_go_neg_channel[4] == 0)
5369 freq = 0;
5370 else
5371 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
5372 msg.oob_go_neg_channel[4]);
5373 if (freq < 0) {
5374 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
6b5147af 5375 p2p_parse_free(&msg);
59b45d1a 5376 return -1;
59b45d1a 5377 }
23318bea 5378 role = msg.oob_go_neg_channel[5];
db6ae69e 5379
23318bea
JM		 5380 if (role == P2P_GO_IN_A_GROUP) {
5381 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
5382 params->go_freq = freq;
abe44e3c
JM		 5383 } else if (role == P2P_CLIENT_IN_A_GROUP) {
5384 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
5385 freq);
5386 params->go_freq = freq;
23318bea
JM		 5387 } else
5388 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
5389 dev->oob_go_neg_freq = freq;
5390
5391 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
59b45d1a
JM		 5392 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
5393 p2p->cfg->channel);
5394 if (freq < 0) {
5395 p2p_dbg(p2p, "Own listen channel not known");
6b5147af 5396 p2p_parse_free(&msg);
59b45d1a
JM		 5397 return -1;
5398 }
5399 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
5400 dev->oob_go_neg_freq = freq;
db6ae69e
JM		 5401 }
5402
23318bea
JM		 5403 if (msg.group_id) {
5404 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
5405 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
5406 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
5407 params->go_ssid_len);
5408 }
59b45d1a 5409
db6ae69e
JM		 5410 if (dev->flags & P2P_DEV_USER_REJECTED) {
5411 p2p_dbg(p2p, "Do not report rejected device");
8a387a26 5412 p2p_parse_free(&msg);
db6ae69e
JM		 5413 return 0;
5414 }
5415
5416 if (!(dev->flags & P2P_DEV_REPORTED)) {
5417 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
5418 !(dev->flags & P2P_DEV_REPORTED_ONCE));
5419 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
5420 }
8a387a26 5421 p2p_parse_free(&msg);
db6ae69e 5422
59b45d1a 5423 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
74df9ecd 5424 params->next_step = BOTH_GO;
59b45d1a 5425 else if (role == P2P_GO_IN_A_GROUP)
db6ae69e 5426 params->next_step = JOIN_GROUP;
59b45d1a
JM		 5427 else if (role == P2P_CLIENT_IN_A_GROUP) {
5428 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
5429 params->next_step = PEER_CLIENT;
5430 } else if (p2p->num_groups > 0)
db6ae69e
JM		 5431 params->next_step = AUTH_JOIN;
5432 else if (params->sel)
5433 params->next_step = INIT_GO_NEG;
5434 else
5435 params->next_step = RESP_GO_NEG;
5436
5437 return 0;
5438}
5439
c4f87a70
JM		 5440
5441void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
5442 int go_intent,
5443 const u8 *own_interface_addr)
5444{
5445
5446 p2p->authorized_oob_dev_pw_id = dev_pw_id;
5447 if (dev_pw_id == 0) {
5448 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
5449 return;
5450 }
5451
5452 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
5453 dev_pw_id);
5454
5455 p2p->go_intent = go_intent;
5456 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
5457}
5458
93588780 5459#endif /* CONFIG_WPS_NFC */
1b928f96
JM		 5460
5461
5462int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len)
5463{
5464 if (len < 8 || len > 63)
5465 return -1;
5466 p2p->cfg->passphrase_len = len;
5467 return 0;
5468}
86bd36f0
JM		 5469
5470
5471void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem)
5472{
5473 p2p->vendor_elem = vendor_elem;
5474}
0c6eee8b
RR		 5475
5476
5477void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx)
5478{
5479 struct p2p_data *p2p = eloop_ctx;
5480
5481 p2p_dbg(p2p,
5482 "Timeout on waiting peer to become ready for GO Negotiation");
8c00fd00 5483 p2p_go_neg_failed(p2p, -1);
0c6eee8b 5484}
370017d9
AK		 5485
5486
5487void p2p_set_own_pref_freq_list(struct p2p_data *p2p,
5488 const unsigned int *pref_freq_list,
5489 unsigned int size)
5490{
5491 unsigned int i;
5492
5493 if (size > P2P_MAX_PREF_CHANNELS)
5494 size = P2P_MAX_PREF_CHANNELS;
5495 p2p->num_pref_freq = size;
5496 for (i = 0; i < size; i++) {
5497 p2p->pref_freq_list[i] = pref_freq_list[i];
5498 p2p_dbg(p2p, "Own preferred frequency list[%u]=%u MHz",
5499 i, p2p->pref_freq_list[i]);
5500 }
5501}
a6f5b193
PX		 5502
5503
3a7819f0
JM		 5504void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class,
5505 u8 chan)
5506{
5507 p2p->override_pref_op_class = op_class;
5508 p2p->override_pref_channel = chan;
5509}
5510
5511
a6f5b193
PX		 5512struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p,
5513 unsigned int freq)
5514{
5515 struct wpabuf *ies, *buf;
5516 u8 addr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
5517 int ret;
5518
5519 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
5520 if (!ies) {
5521 wpa_printf(MSG_ERROR,
5522 "CTRL: Failed to build Probe Response IEs");
5523 return NULL;
5524 }
5525
5526 buf = wpabuf_alloc(200 + wpabuf_len(ies));
5527 if (!buf) {
5528 wpabuf_free(ies);
5529 return NULL;
5530 }
5531
5532 ret = p2p_build_probe_resp_buf(p2p, buf, ies, addr, freq);
5533 wpabuf_free(ies);
5534 if (ret) {
5535 wpabuf_free(buf);
5536 return NULL;
5537 }
5538
5539 return buf;
5540}
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