2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
19 #include "common/ieee802_11_defs.h"
20 #include "common/ieee802_11_common.h"
21 #include "wps/wps_i.h"
26 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
27 static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
28 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
29 const u8 *sa, const u8 *data, size_t len,
31 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
32 const u8 *sa, const u8 *data,
34 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
35 static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
39 * p2p_scan recovery timeout
41 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
42 * timeout for this to avoid hitting P2P timeout unnecessarily.
44 #define P2P_SCAN_TIMEOUT 35
47 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
48 * entries will be removed
50 #define P2P_PEER_EXPIRATION_AGE 300
52 #define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
54 static void p2p_expire_peers(struct p2p_data *p2p)
56 struct p2p_device *dev, *n;
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)
63 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
64 "entry " MACSTR, MAC2STR(dev->p2p_device_addr));
65 dl_list_del(&dev->list);
66 p2p_device_free(p2p, dev);
71 static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
73 struct p2p_data *p2p = eloop_ctx;
74 p2p_expire_peers(p2p);
75 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
76 p2p_expiration_timeout, p2p, NULL);
80 static const char * p2p_state_txt(int state)
89 case P2P_CONNECT_LISTEN:
90 return "CONNECT_LISTEN";
95 case P2P_WAIT_PEER_CONNECT:
96 return "WAIT_PEER_CONNECT";
97 case P2P_WAIT_PEER_IDLE:
98 return "WAIT_PEER_IDLE";
99 case P2P_SD_DURING_FIND:
100 return "SD_DURING_FIND";
101 case P2P_PROVISIONING:
102 return "PROVISIONING";
103 case P2P_PD_DURING_FIND:
104 return "PD_DURING_FIND";
107 case P2P_INVITE_LISTEN:
108 return "INVITE_LISTEN";
115 void p2p_set_state(struct p2p_data *p2p, int new_state)
117 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
118 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
119 p2p->state = new_state;
123 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
125 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
126 "P2P: Set timeout (state=%s): %u.%06u sec",
127 p2p_state_txt(p2p->state), sec, usec);
128 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
129 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
133 void p2p_clear_timeout(struct p2p_data *p2p)
135 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
136 p2p_state_txt(p2p->state));
137 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
141 void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
144 struct p2p_go_neg_results res;
145 p2p_clear_timeout(p2p);
146 p2p_set_state(p2p, P2P_IDLE);
147 p2p->go_neg_peer = NULL;
149 os_memset(&res, 0, sizeof(res));
152 os_memcpy(res.peer_device_addr, peer->p2p_device_addr,
154 os_memcpy(res.peer_interface_addr, peer->intended_addr,
157 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
161 static void p2p_listen_in_find(struct p2p_data *p2p)
167 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
168 "P2P: Starting short listen state (state=%s)",
169 p2p_state_txt(p2p->state));
171 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
174 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
175 "P2P: Unknown regulatory class/channel");
179 os_get_random((u8 *) &r, sizeof(r));
180 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
181 p2p->min_disc_int) * 100;
183 p2p->pending_listen_freq = freq;
184 p2p->pending_listen_sec = 0;
185 p2p->pending_listen_usec = 1024 * tu;
187 ies = p2p_build_probe_resp_ies(p2p);
191 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
193 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
194 "P2P: Failed to start listen mode");
195 p2p->pending_listen_freq = 0;
201 int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
206 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
207 "P2P: Going to listen(only) state");
209 freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
212 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
213 "P2P: Unknown regulatory class/channel");
217 p2p->pending_listen_freq = freq;
218 p2p->pending_listen_sec = timeout / 1000;
219 p2p->pending_listen_usec = (timeout % 1000) * 1000;
221 if (p2p->p2p_scan_running) {
222 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
223 "P2P: p2p_scan running - delay start of listen state");
224 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
228 ies = p2p_build_probe_resp_ies(p2p);
232 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
233 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
234 "P2P: Failed to start listen mode");
235 p2p->pending_listen_freq = 0;
241 p2p_set_state(p2p, P2P_LISTEN_ONLY);
247 static void p2p_device_clear_reported(struct p2p_data *p2p)
249 struct p2p_device *dev;
250 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
251 dev->flags &= ~P2P_DEV_REPORTED;
256 * p2p_get_device - Fetch a peer entry
257 * @p2p: P2P module context from p2p_init()
258 * @addr: P2P Device Address of the peer
259 * Returns: Pointer to the device entry or %NULL if not found
261 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
263 struct p2p_device *dev;
264 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
265 if (os_memcmp(dev->p2p_device_addr, addr, ETH_ALEN) == 0)
273 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
274 * @p2p: P2P module context from p2p_init()
275 * @addr: P2P Interface Address of the peer
276 * Returns: Pointer to the device entry or %NULL if not found
278 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
281 struct p2p_device *dev;
282 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
283 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
291 * p2p_create_device - Create a peer entry
292 * @p2p: P2P module context from p2p_init()
293 * @addr: P2P Device Address of the peer
294 * Returns: Pointer to the device entry or %NULL on failure
296 * If there is already an entry for the peer, it will be returned instead of
297 * creating a new one.
299 static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
302 struct p2p_device *dev, *oldest = NULL;
305 dev = p2p_get_device(p2p, addr);
309 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
311 if (oldest == NULL ||
312 os_time_before(&dev->last_seen, &oldest->last_seen))
315 if (count + 1 > p2p->cfg->max_peers && oldest) {
316 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
317 "P2P: Remove oldest peer entry to make room for a new "
319 dl_list_del(&oldest->list);
320 p2p_device_free(p2p, oldest);
323 dev = os_zalloc(sizeof(*dev));
326 dl_list_add(&p2p->devices, &dev->list);
327 os_memcpy(dev->p2p_device_addr, addr, ETH_ALEN);
333 static void p2p_copy_client_info(struct p2p_device *dev,
334 struct p2p_client_info *cli)
336 os_memcpy(dev->device_name, cli->dev_name, cli->dev_name_len);
337 dev->device_name[cli->dev_name_len] = '\0';
338 dev->dev_capab = cli->dev_capab;
339 dev->config_methods = cli->config_methods;
340 os_memcpy(dev->pri_dev_type, cli->pri_dev_type, 8);
344 static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
345 const u8 *go_interface_addr, int freq,
346 const u8 *gi, size_t gi_len)
348 struct p2p_group_info info;
350 struct p2p_device *dev;
355 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
359 * Clear old data for this group; if the devices are still in the
360 * group, the information will be restored in the loop following this.
362 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
363 if (os_memcpy(dev->member_in_go_iface, go_interface_addr,
365 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
366 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
370 for (c = 0; c < info.num_clients; c++) {
371 struct p2p_client_info *cli = &info.client[c];
372 dev = p2p_get_device(p2p, cli->p2p_device_addr);
375 * Update information only if we have not received this
376 * directly from the client.
378 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
379 P2P_DEV_PROBE_REQ_ONLY))
380 p2p_copy_client_info(dev, cli);
381 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
382 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
385 dev = p2p_create_device(p2p, cli->p2p_device_addr);
388 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
389 p2p_copy_client_info(dev, cli);
390 dev->oper_freq = freq;
392 p2p->cfg->cb_ctx, dev->p2p_device_addr,
393 dev->p2p_device_addr, dev->pri_dev_type,
394 dev->device_name, dev->config_methods,
398 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
400 os_get_time(&dev->last_seen);
401 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
402 os_memcpy(dev->member_in_go_iface, go_interface_addr,
411 * p2p_add_device - Add peer entries based on scan results
412 * @p2p: P2P module context from p2p_init()
413 * @addr: Source address of Beacon or Probe Response frame (may be either
414 * P2P Device Address or P2P Interface Address)
415 * @level: Signal level (signal strength of the received frame from the peer)
416 * @freq: Frequency on which the Beacon or Probe Response frame was received
417 * @ies: IEs from the Beacon or Probe Response frame
418 * @ies_len: Length of ies buffer in octets
419 * Returns: 0 on success, -1 on failure
421 * If the scan result is for a GO, the clients in the group will also be added
422 * to the peer table. This function can also be used with some other frames
423 * like Provision Discovery Request that contains P2P Capability and P2P Device
426 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
427 const u8 *ies, size_t ies_len)
429 struct p2p_device *dev;
430 struct p2p_message msg;
431 const u8 *p2p_dev_addr;
433 os_memset(&msg, 0, sizeof(msg));
434 if (p2p_parse_ies(ies, ies_len, &msg)) {
435 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
436 "P2P: Failed to parse P2P IE for a device entry");
437 p2p_parse_free(&msg);
441 if (msg.p2p_device_addr)
442 p2p_dev_addr = msg.p2p_device_addr;
443 else if (msg.device_id)
444 p2p_dev_addr = msg.device_id;
446 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
447 "P2P: Ignore scan data without P2P Device Info or "
449 p2p_parse_free(&msg);
453 if (!is_zero_ether_addr(p2p->peer_filter) &&
454 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
455 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
456 "filter for " MACSTR " due to peer filter",
457 MAC2STR(p2p_dev_addr));
461 dev = p2p_create_device(p2p, p2p_dev_addr);
463 p2p_parse_free(&msg);
466 os_get_time(&dev->last_seen);
467 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
469 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
470 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
472 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
473 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
475 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
476 dev->oper_ssid_len = msg.ssid[1];
479 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
480 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
482 if (*msg.ds_params == 14)
485 ds_freq = 2407 + *msg.ds_params * 5;
486 if (freq != ds_freq) {
487 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
488 "P2P: Update Listen frequency based on DS "
489 "Parameter Set IE: %d -> %d MHz",
495 if (dev->listen_freq && dev->listen_freq != freq) {
496 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
497 "P2P: Update Listen frequency based on scan "
498 "results (" MACSTR " %d -> %d MHz (DS param %d)",
499 MAC2STR(dev->p2p_device_addr), dev->listen_freq, freq,
500 msg.ds_params ? *msg.ds_params : -1);
502 dev->listen_freq = freq;
504 dev->oper_freq = freq;
507 if (msg.pri_dev_type)
508 os_memcpy(dev->pri_dev_type, msg.pri_dev_type,
509 sizeof(dev->pri_dev_type));
510 os_memcpy(dev->device_name, msg.device_name, sizeof(dev->device_name));
511 dev->config_methods = msg.config_methods ? msg.config_methods :
512 msg.wps_config_methods;
513 if (msg.capability) {
514 dev->dev_capab = msg.capability[0];
515 dev->group_capab = msg.capability[1];
518 if (msg.ext_listen_timing) {
519 dev->ext_listen_period = WPA_GET_LE16(msg.ext_listen_timing);
520 dev->ext_listen_interval =
521 WPA_GET_LE16(msg.ext_listen_timing + 2);
524 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq, msg.group_info,
527 p2p_parse_free(&msg);
529 if (p2p_pending_sd_req(p2p, dev))
530 dev->flags |= P2P_DEV_SD_SCHEDULE;
532 if (dev->flags & P2P_DEV_REPORTED)
535 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
536 "P2P: Peer found with Listen frequency %d MHz", freq);
537 if (dev->flags & P2P_DEV_USER_REJECTED) {
538 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
539 "P2P: Do not report rejected device");
542 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, dev->p2p_device_addr,
543 dev->pri_dev_type, dev->device_name,
544 dev->config_methods, dev->dev_capab,
546 dev->flags |= P2P_DEV_REPORTED;
552 static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
554 if (p2p->go_neg_peer == dev)
555 p2p->go_neg_peer = NULL;
556 if (p2p->invite_peer == dev)
557 p2p->invite_peer = NULL;
558 if (p2p->sd_peer == dev)
560 if (p2p->pending_client_disc_go == dev)
561 p2p->pending_client_disc_go = NULL;
567 static int p2p_get_next_prog_freq(struct p2p_data *p2p)
569 struct p2p_channels *c;
570 struct p2p_reg_class *cla;
577 c = &p2p->cfg->channels;
578 for (cl = 0; cl < c->reg_classes; cl++) {
579 cla = &c->reg_class[cl];
580 if (cla->reg_class != p2p->last_prog_scan_class)
582 for (ch = 0; ch < cla->channels; ch++) {
583 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
593 /* Start from beginning */
594 reg_class = c->reg_class[0].reg_class;
595 channel = c->reg_class[0].channel[0];
597 /* Pick the next channel */
599 if (ch == cla->channels) {
601 if (cl == c->reg_classes)
605 reg_class = c->reg_class[cl].reg_class;
606 channel = c->reg_class[cl].channel[ch];
609 freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
610 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
611 "channel: reg_class %u channel %u -> %d MHz",
612 reg_class, channel, freq);
613 p2p->last_prog_scan_class = reg_class;
614 p2p->last_prog_scan_chan = channel;
616 if (freq == 2412 || freq == 2437 || freq == 2462)
617 return 0; /* No need to add social channels */
622 static void p2p_search(struct p2p_data *p2p)
625 enum p2p_scan_type type;
627 if (p2p->drv_in_listen) {
628 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
629 "in Listen state - wait for it to end before "
633 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
635 if (p2p->go_neg_peer) {
637 * Only scan the known listen frequency of the peer
638 * during GO Negotiation start.
640 freq = p2p->go_neg_peer->listen_freq;
642 freq = p2p->go_neg_peer->oper_freq;
643 type = P2P_SCAN_SPECIFIC;
644 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
645 "for freq %u (GO Neg)", freq);
646 } else if (p2p->invite_peer) {
648 * Only scan the known listen frequency of the peer
649 * during Invite start.
651 freq = p2p->invite_peer->listen_freq;
653 freq = p2p->invite_peer->oper_freq;
654 type = P2P_SCAN_SPECIFIC;
655 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
656 "for freq %u (Invite)", freq);
657 } else if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
658 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
659 type = P2P_SCAN_SOCIAL_PLUS_ONE;
660 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
661 "(+ freq %u)", freq);
663 type = P2P_SCAN_SOCIAL;
664 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
667 if (p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq) < 0) {
668 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
669 "P2P: Scan request failed");
670 p2p_continue_find(p2p);
672 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
673 p2p->p2p_scan_running = 1;
674 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
675 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
681 static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
683 struct p2p_data *p2p = eloop_ctx;
684 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
689 static int p2p_run_after_scan(struct p2p_data *p2p)
691 struct p2p_device *dev;
692 enum p2p_after_scan op;
694 op = p2p->start_after_scan;
695 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
697 case P2P_AFTER_SCAN_NOTHING:
699 case P2P_AFTER_SCAN_LISTEN:
700 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
701 "requested Listen state");
702 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
703 p2p->pending_listen_usec / 1000);
705 case P2P_AFTER_SCAN_CONNECT:
706 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
707 "requested connect with " MACSTR,
708 MAC2STR(p2p->after_scan_peer));
709 dev = p2p_get_device(p2p, p2p->after_scan_peer);
711 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
715 p2p_connect_send(p2p, dev);
723 static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
725 struct p2p_data *p2p = eloop_ctx;
727 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
728 "(running=%d)", p2p->p2p_scan_running);
729 running = p2p->p2p_scan_running;
730 /* Make sure we recover from missed scan results callback */
731 p2p->p2p_scan_running = 0;
734 p2p_run_after_scan(p2p);
738 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
739 enum p2p_discovery_type type)
743 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
745 if (p2p->p2p_scan_running) {
746 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
749 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
750 p2p_clear_timeout(p2p);
751 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
752 p2p->find_type = type;
753 p2p_device_clear_reported(p2p);
754 p2p_set_state(p2p, P2P_SEARCH);
755 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
757 eloop_register_timeout(timeout, 0, p2p_find_timeout,
760 case P2P_FIND_START_WITH_FULL:
761 case P2P_FIND_PROGRESSIVE:
762 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0);
764 case P2P_FIND_ONLY_SOCIAL:
765 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0);
772 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
773 p2p->p2p_scan_running = 1;
774 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
775 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
778 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
786 void p2p_stop_find(struct p2p_data *p2p)
788 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
789 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
790 p2p_clear_timeout(p2p);
791 p2p_set_state(p2p, P2P_IDLE);
792 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
793 p2p->go_neg_peer = NULL;
795 p2p->invite_peer = NULL;
796 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
800 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
801 enum p2p_wps_method wps_method,
802 int go_intent, const u8 *own_interface_addr,
803 unsigned int force_freq, int persistent_group)
805 struct p2p_device *dev;
807 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
808 "P2P: Request to start group negotiation - peer=" MACSTR
809 " GO Intent=%d Intended Interface Address=" MACSTR
810 " wps_method=%d persistent_group=%d",
811 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
812 wps_method, persistent_group);
815 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
816 &p2p->op_reg_class, &p2p->op_channel) <
818 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
819 "P2P: Unsupported frequency %u MHz",
823 p2p->channels.reg_classes = 1;
824 p2p->channels.reg_class[0].channels = 1;
825 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
826 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
828 p2p->op_reg_class = p2p->cfg->op_reg_class;
829 p2p->op_channel = p2p->cfg->op_channel;
830 os_memcpy(&p2p->channels, &p2p->cfg->channels,
831 sizeof(struct p2p_channels));
833 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
834 "P2P: Own preference for operation channel: "
835 "Regulatory Class %u Channel %u%s",
836 p2p->op_reg_class, p2p->op_channel,
837 force_freq ? " (forced)" : "");
839 dev = p2p_get_device(p2p, peer_addr);
840 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
841 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
842 "P2P: Cannot connect to unknown P2P Device " MACSTR,
847 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
848 if (!(dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
849 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
850 "P2P: Cannot connect to P2P Device " MACSTR
851 " that is in a group and is not discoverable",
855 if (dev->oper_freq <= 0) {
856 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
857 "P2P: Cannot connect to P2P Device " MACSTR
858 " with incomplete information",
864 * First, try to connect directly. If the peer does not
865 * acknowledge frames, assume it is sleeping and use device
866 * discoverability via the GO at that point.
870 dev->flags &= ~P2P_DEV_NOT_YET_READY;
871 dev->flags &= ~P2P_DEV_USER_REJECTED;
872 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
873 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
874 dev->go_neg_req_sent = 0;
875 dev->go_state = UNKNOWN_GO;
876 if (persistent_group)
877 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
879 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
880 p2p->go_intent = go_intent;
881 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
883 if (p2p->state != P2P_IDLE)
886 dev->wps_method = wps_method;
887 dev->status = P2P_SC_SUCCESS;
890 dev->flags |= P2P_DEV_FORCE_FREQ;
892 dev->flags &= ~P2P_DEV_FORCE_FREQ;
894 if (p2p->p2p_scan_running) {
895 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
896 "P2P: p2p_scan running - delay connect send");
897 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
898 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
901 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
903 return p2p_connect_send(p2p, dev);
907 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
908 enum p2p_wps_method wps_method,
909 int go_intent, const u8 *own_interface_addr,
910 unsigned int force_freq, int persistent_group)
912 struct p2p_device *dev;
914 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
915 "P2P: Request to authorize group negotiation - peer=" MACSTR
916 " GO Intent=%d Intended Interface Address=" MACSTR
917 " wps_method=%d persistent_group=%d",
918 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
919 wps_method, persistent_group);
922 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
923 &p2p->op_reg_class, &p2p->op_channel) <
925 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
926 "P2P: Unsupported frequency %u MHz",
930 p2p->channels.reg_classes = 1;
931 p2p->channels.reg_class[0].channels = 1;
932 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
933 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
935 p2p->op_reg_class = p2p->cfg->op_reg_class;
936 p2p->op_channel = p2p->cfg->op_channel;
937 os_memcpy(&p2p->channels, &p2p->cfg->channels,
938 sizeof(struct p2p_channels));
940 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
941 "P2P: Own preference for operation channel: "
942 "Regulatory Class %u Channel %u%s",
943 p2p->op_reg_class, p2p->op_channel,
944 force_freq ? " (forced)" : "");
946 dev = p2p_get_device(p2p, peer_addr);
948 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
949 "P2P: Cannot authorize unknown P2P Device " MACSTR,
954 dev->flags &= ~P2P_DEV_NOT_YET_READY;
955 dev->flags &= ~P2P_DEV_USER_REJECTED;
956 dev->go_neg_req_sent = 0;
957 dev->go_state = UNKNOWN_GO;
958 if (persistent_group)
959 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
961 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
962 p2p->go_intent = go_intent;
963 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
965 dev->wps_method = wps_method;
966 dev->status = P2P_SC_SUCCESS;
969 dev->flags |= P2P_DEV_FORCE_FREQ;
971 dev->flags &= ~P2P_DEV_FORCE_FREQ;
977 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
978 struct p2p_device *dev, struct p2p_message *msg)
980 os_get_time(&dev->last_seen);
982 if (msg->pri_dev_type)
983 os_memcpy(dev->pri_dev_type, msg->pri_dev_type,
984 sizeof(dev->pri_dev_type));
985 os_memcpy(dev->device_name, msg->device_name,
986 sizeof(dev->device_name));
987 dev->config_methods = msg->config_methods ? msg->config_methods :
988 msg->wps_config_methods;
989 if (msg->capability) {
990 dev->dev_capab = msg->capability[0];
991 dev->group_capab = msg->capability[1];
993 if (msg->listen_channel) {
995 freq = p2p_channel_to_freq((char *) msg->listen_channel,
996 msg->listen_channel[3],
997 msg->listen_channel[4]);
999 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1000 "P2P: Unknown peer Listen channel: "
1001 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1002 msg->listen_channel[0],
1003 msg->listen_channel[1],
1004 msg->listen_channel[2],
1005 msg->listen_channel[3],
1006 msg->listen_channel[4]);
1008 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1009 "peer " MACSTR " Listen channel: %u -> %u MHz",
1010 MAC2STR(dev->p2p_device_addr),
1011 dev->listen_freq, freq);
1012 dev->listen_freq = freq;
1015 if (msg->ext_listen_timing) {
1016 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
1017 dev->ext_listen_interval =
1018 WPA_GET_LE16(msg->ext_listen_timing + 2);
1021 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1022 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1023 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1024 "P2P: Completed device entry based on data from "
1025 "GO Negotiation Request");
1027 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1028 "P2P: Created device entry based on GO Neg Req: "
1029 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1031 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1032 dev->group_capab, dev->device_name, dev->listen_freq);
1035 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1037 if (dev->flags & P2P_DEV_USER_REJECTED) {
1038 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1039 "P2P: Do not report rejected device");
1043 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, dev->p2p_device_addr,
1044 dev->pri_dev_type, dev->device_name,
1045 dev->config_methods, dev->dev_capab,
1050 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1052 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1053 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1054 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1055 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1056 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1060 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1062 p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
1063 p2p_random(params->passphrase, 8);
1068 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1070 struct p2p_go_neg_results res;
1071 int go = peer->go_state == LOCAL_GO;
1072 struct p2p_channels intersection;
1076 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1077 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
1078 "GO)", MAC2STR(peer->p2p_device_addr),
1079 go ? "local end" : "peer");
1081 os_memset(&res, 0, sizeof(res));
1083 os_memcpy(res.peer_device_addr, peer->p2p_device_addr, ETH_ALEN);
1084 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1085 res.wps_method = peer->wps_method;
1086 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP)
1087 res.persistent_group = 1;
1090 /* Setup AP mode for WPS provisioning */
1091 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1094 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1095 res.ssid_len = p2p->ssid_len;
1096 p2p_random(res.passphrase, 8);
1098 res.freq = peer->oper_freq;
1099 if (p2p->ssid_len) {
1100 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1101 res.ssid_len = p2p->ssid_len;
1105 p2p_channels_intersect(&p2p->channels, &peer->channels,
1108 for (i = 0; i < intersection.reg_classes; i++) {
1109 struct p2p_reg_class *c = &intersection.reg_class[i];
1110 if (freqs + 1 == P2P_MAX_CHANNELS)
1112 for (j = 0; j < c->channels; j++) {
1114 if (freqs + 1 == P2P_MAX_CHANNELS)
1116 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1120 res.freq_list[freqs++] = freq;
1124 p2p_clear_timeout(p2p);
1125 peer->go_neg_req_sent = 0;
1126 peer->wps_method = WPS_NOT_READY;
1128 p2p_set_state(p2p, P2P_PROVISIONING);
1129 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1133 static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1134 const u8 *data, size_t len, int rx_freq)
1136 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1137 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1138 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1144 case P2P_GO_NEG_REQ:
1145 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1147 case P2P_GO_NEG_RESP:
1148 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1150 case P2P_GO_NEG_CONF:
1151 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1153 case P2P_INVITATION_REQ:
1154 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1157 case P2P_INVITATION_RESP:
1158 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1160 case P2P_PROV_DISC_REQ:
1161 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1163 case P2P_PROV_DISC_RESP:
1164 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1166 case P2P_DEV_DISC_REQ:
1167 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1169 case P2P_DEV_DISC_RESP:
1170 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1173 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1174 "P2P: Unsupported P2P Public Action frame type %d",
1181 void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1182 const u8 *bssid, const u8 *data, size_t len,
1189 case WLAN_PA_VENDOR_SPECIFIC:
1194 if (WPA_GET_BE24(data) != OUI_WFA)
1202 if (*data != P2P_OUI_TYPE)
1205 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1207 case WLAN_PA_GAS_INITIAL_REQ:
1208 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1210 case WLAN_PA_GAS_INITIAL_RESP:
1211 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1213 case WLAN_PA_GAS_COMEBACK_REQ:
1214 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1216 case WLAN_PA_GAS_COMEBACK_RESP:
1217 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
1223 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1224 const u8 *bssid, u8 category,
1225 const u8 *data, size_t len, int freq)
1227 if (category == WLAN_ACTION_PUBLIC) {
1228 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1232 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1238 if (WPA_GET_BE24(data) != OUI_WFA)
1243 if (*data != P2P_OUI_TYPE)
1248 /* P2P action frame */
1249 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1250 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1251 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1257 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1258 "P2P: Received P2P Action - Notice of Absence");
1261 case P2P_PRESENCE_REQ:
1262 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1264 case P2P_PRESENCE_RESP:
1265 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1267 case P2P_GO_DISC_REQ:
1268 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1271 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1272 "P2P: Received P2P Action - unknown type %u", data[0]);
1278 static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1280 struct p2p_data *p2p = eloop_ctx;
1281 if (p2p->go_neg_peer == NULL)
1283 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1284 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1285 p2p_connect_send(p2p, p2p->go_neg_peer);
1289 static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1291 struct p2p_data *p2p = eloop_ctx;
1292 if (p2p->invite_peer == NULL)
1294 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1295 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1299 static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1300 const u8 *ie, size_t ie_len)
1302 struct p2p_message msg;
1303 struct p2p_device *dev;
1305 os_memset(&msg, 0, sizeof(msg));
1306 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1308 p2p_parse_free(&msg);
1309 return; /* not a P2P probe */
1312 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1313 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1315 /* The Probe Request is not part of P2P Device Discovery. It is
1316 * not known whether the source address of the frame is the P2P
1317 * Device Address or P2P Interface Address. Do not add a new
1318 * peer entry based on this frames.
1320 p2p_parse_free(&msg);
1324 dev = p2p_get_device(p2p, addr);
1326 if (dev->country[0] == 0 && msg.listen_channel)
1327 os_memcpy(dev->country, msg.listen_channel, 3);
1328 p2p_parse_free(&msg);
1329 return; /* already known */
1332 dev = p2p_create_device(p2p, addr);
1334 p2p_parse_free(&msg);
1338 os_get_time(&dev->last_seen);
1339 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1341 if (msg.capability) {
1342 dev->dev_capab = msg.capability[0];
1343 dev->group_capab = msg.capability[1];
1346 if (msg.listen_channel) {
1347 os_memcpy(dev->country, msg.listen_channel, 3);
1348 dev->listen_freq = p2p_channel_to_freq(dev->country,
1349 msg.listen_channel[3],
1350 msg.listen_channel[4]);
1353 os_memcpy(dev->device_name, msg.device_name, sizeof(dev->device_name));
1355 if (msg.wps_pri_dev_type)
1356 os_memcpy(dev->pri_dev_type, msg.wps_pri_dev_type,
1357 sizeof(dev->pri_dev_type));
1359 p2p_parse_free(&msg);
1361 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1362 "P2P: Created device entry based on Probe Req: " MACSTR
1363 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1364 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1365 dev->group_capab, dev->device_name, dev->listen_freq);
1369 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1371 struct p2p_message *msg)
1373 struct p2p_device *dev;
1375 dev = p2p_get_device(p2p, addr);
1377 os_get_time(&dev->last_seen);
1378 return dev; /* already known */
1381 dev = p2p_create_device(p2p, addr);
1385 p2p_add_dev_info(p2p, addr, dev, msg);
1391 static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1393 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1395 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1396 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1397 WPA_GET_BE16(&req_dev_type[6]) == 0)
1398 return 1; /* Category match with wildcard OUI/sub-category */
1403 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1404 size_t num_req_dev_type)
1407 for (i = 0; i < num_req_dev_type; i++) {
1408 if (dev_type_match(dev_type, req_dev_type[i]))
1416 * p2p_match_dev_type - Match local device type with requested type
1417 * @p2p: P2P module context from p2p_init()
1418 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1419 * Returns: 1 on match, 0 on mismatch
1421 * This function can be used to match the Requested Device Type attribute in
1422 * WPS IE with the local device types for deciding whether to reply to a Probe
1425 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1427 struct wps_parse_attr attr;
1430 if (wps_parse_msg(wps, &attr))
1431 return 1; /* assume no Requested Device Type attributes */
1433 if (attr.num_req_dev_type == 0)
1434 return 1; /* no Requested Device Type attributes -> match */
1436 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1437 attr.num_req_dev_type))
1438 return 1; /* Own Primary Device Type matches */
1440 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1441 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1443 attr.num_req_dev_type))
1444 return 1; /* Own Secondary Device Type matches */
1446 /* No matching device type found */
1451 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1456 buf = wpabuf_alloc(1000);
1460 /* TODO: add more info into WPS IE; maybe get from WPS module? */
1461 p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
1464 len = p2p_buf_add_ie_hdr(buf);
1465 p2p_buf_add_capability(buf, p2p->dev_capab, 0);
1466 if (p2p->ext_listen_interval)
1467 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1468 p2p->ext_listen_interval);
1469 p2p_buf_add_device_info(buf, p2p, NULL);
1470 p2p_buf_update_ie_hdr(buf, len);
1476 static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1479 struct ieee802_11_elems elems;
1481 struct ieee80211_mgmt *resp;
1485 if (!p2p->in_listen || !p2p->drv_in_listen) {
1486 /* not in Listen state - ignore Probe Request */
1490 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1492 /* Ignore invalid Probe Request frames */
1496 if (elems.p2p == NULL) {
1497 /* not a P2P probe - ignore it */
1501 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1502 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1504 /* not using P2P Wildcard SSID - ignore */
1508 /* Check Requested Device Type match */
1509 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1510 if (wps && !p2p_match_dev_type(p2p, wps)) {
1512 /* No match with Requested Device Type */
1517 if (!p2p->cfg->send_probe_resp)
1518 return; /* Response generated elsewhere */
1520 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1521 "P2P: Reply to P2P Probe Request in Listen state");
1524 * We do not really have a specific BSS that this frame is advertising,
1525 * so build a frame that has some information in valid format. This is
1526 * really only used for discovery purposes, not to learn exact BSS
1529 ies = p2p_build_probe_resp_ies(p2p);
1533 buf = wpabuf_alloc(200 + wpabuf_len(ies));
1540 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
1542 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
1543 (WLAN_FC_STYPE_PROBE_RESP << 4));
1544 os_memcpy(resp->da, addr, ETH_ALEN);
1545 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
1546 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
1547 resp->u.probe_resp.beacon_int = host_to_le16(100);
1548 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1549 resp->u.probe_resp.capab_info =
1550 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
1551 WLAN_CAPABILITY_PRIVACY |
1552 WLAN_CAPABILITY_SHORT_SLOT_TIME);
1554 wpabuf_put_u8(buf, WLAN_EID_SSID);
1555 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
1556 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1558 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
1559 wpabuf_put_u8(buf, 8);
1560 wpabuf_put_u8(buf, (60 / 5) | 0x80);
1561 wpabuf_put_u8(buf, 90 / 5);
1562 wpabuf_put_u8(buf, (120 / 5) | 0x80);
1563 wpabuf_put_u8(buf, 180 / 5);
1564 wpabuf_put_u8(buf, (240 / 5) | 0x80);
1565 wpabuf_put_u8(buf, 360 / 5);
1566 wpabuf_put_u8(buf, 480 / 5);
1567 wpabuf_put_u8(buf, 540 / 5);
1569 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
1570 wpabuf_put_u8(buf, 1);
1571 wpabuf_put_u8(buf, p2p->cfg->channel);
1573 wpabuf_put_buf(buf, ies);
1576 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
1582 int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1585 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
1587 p2p_reply_probe(p2p, addr, ie, ie_len);
1589 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
1591 os_memcmp(addr, p2p->go_neg_peer->p2p_device_addr, ETH_ALEN) == 0)
1593 /* Received a Probe Request from GO Negotiation peer */
1594 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1595 "P2P: Found GO Negotiation peer - try to start GO "
1596 "negotiation from timeout");
1597 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
1601 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
1603 os_memcmp(addr, p2p->invite_peer->p2p_device_addr, ETH_ALEN) == 0)
1605 /* Received a Probe Request from Invite peer */
1606 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1607 "P2P: Found Invite peer - try to start Invite from "
1609 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
1617 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
1618 u8 *buf, size_t len, struct wpabuf *p2p_ie)
1627 return 0; /* WLAN AP is not a P2P manager */
1630 * (Re)Association Request - P2P IE
1631 * P2P Capability attribute (shall be present)
1632 * P2P Interface attribute (present if concurrent device and
1633 * P2P Management is enabled)
1635 tmp = wpabuf_alloc(200);
1639 lpos = p2p_buf_add_ie_hdr(tmp);
1641 if (p2p->num_groups > 0) {
1642 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
1643 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1644 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
1646 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
1648 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
1649 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1650 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
1651 p2p_buf_add_p2p_interface(tmp, p2p);
1652 p2p_buf_update_ie_hdr(tmp, lpos);
1654 tmplen = wpabuf_len(tmp);
1658 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1667 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1668 size_t len, int p2p_group, struct wpabuf *p2p_ie)
1672 struct p2p_device *peer;
1677 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
1680 * (Re)Association Request - P2P IE
1681 * P2P Capability attribute (shall be present)
1682 * Extended Listen Timing (may be present)
1683 * P2P Device Info attribute (shall be present)
1685 tmp = wpabuf_alloc(200);
1689 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
1691 lpos = p2p_buf_add_ie_hdr(tmp);
1692 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
1693 if (p2p->ext_listen_interval)
1694 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
1695 p2p->ext_listen_interval);
1696 p2p_buf_add_device_info(tmp, p2p, peer);
1697 p2p_buf_update_ie_hdr(tmp, lpos);
1699 tmplen = wpabuf_len(tmp);
1703 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1712 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
1714 struct wpabuf *p2p_ie;
1717 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
1721 ret = p2p_attr_text(p2p_ie, buf, end);
1722 wpabuf_free(p2p_ie);
1727 static void p2p_clear_go_neg(struct p2p_data *p2p)
1729 p2p->go_neg_peer = NULL;
1730 p2p_clear_timeout(p2p);
1731 p2p_set_state(p2p, P2P_IDLE);
1735 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
1737 if (p2p->go_neg_peer == NULL) {
1738 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1739 "P2P: No pending Group Formation - "
1740 "ignore WPS registration success notification");
1741 return; /* No pending Group Formation */
1744 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
1746 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1747 "P2P: Ignore WPS registration success notification "
1748 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
1750 MAC2STR(p2p->go_neg_peer->intended_addr));
1751 return; /* Ignore unexpected peer address */
1754 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1755 "P2P: Group Formation completed successfully with " MACSTR,
1758 p2p_clear_go_neg(p2p);
1762 void p2p_group_formation_failed(struct p2p_data *p2p)
1764 if (p2p->go_neg_peer == NULL) {
1765 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1766 "P2P: No pending Group Formation - "
1767 "ignore group formation failure notification");
1768 return; /* No pending Group Formation */
1771 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1772 "P2P: Group Formation failed with " MACSTR,
1773 MAC2STR(p2p->go_neg_peer->intended_addr));
1775 p2p_clear_go_neg(p2p);
1779 struct p2p_data * p2p_init(const struct p2p_config *cfg)
1781 struct p2p_data *p2p;
1783 if (cfg->max_peers < 1)
1786 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
1789 p2p->cfg = (struct p2p_config *) (p2p + 1);
1790 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
1792 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
1794 p2p->min_disc_int = 1;
1795 p2p->max_disc_int = 3;
1797 os_get_random(&p2p->next_tie_breaker, 1);
1798 p2p->next_tie_breaker &= 0x01;
1799 if (cfg->sd_request)
1800 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
1801 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
1802 if (cfg->concurrent_operations)
1803 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
1804 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
1806 dl_list_init(&p2p->devices);
1808 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
1809 p2p_expiration_timeout, p2p, NULL);
1815 void p2p_deinit(struct p2p_data *p2p)
1817 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
1818 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
1819 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1821 os_free(p2p->cfg->dev_name);
1822 os_free(p2p->groups);
1823 wpabuf_free(p2p->sd_resp);
1828 void p2p_flush(struct p2p_data *p2p)
1830 struct p2p_device *dev, *prev;
1831 p2p_clear_timeout(p2p);
1832 p2p_set_state(p2p, P2P_IDLE);
1833 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1834 p2p->go_neg_peer = NULL;
1835 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1836 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
1838 dl_list_del(&dev->list);
1839 p2p_device_free(p2p, dev);
1841 p2p_free_sd_queries(p2p);
1845 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
1847 os_free(p2p->cfg->dev_name);
1849 p2p->cfg->dev_name = os_strdup(dev_name);
1850 if (p2p->cfg->dev_name == NULL)
1853 p2p->cfg->dev_name = NULL;
1858 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
1860 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
1865 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
1866 size_t num_dev_types)
1868 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
1869 num_dev_types = P2P_SEC_DEVICE_TYPES;
1870 p2p->cfg->num_sec_dev_types = num_dev_types;
1871 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
1876 int p2p_set_country(struct p2p_data *p2p, const char *country)
1878 os_memcpy(p2p->cfg->country, country, 3);
1883 void p2p_continue_find(struct p2p_data *p2p)
1885 struct p2p_device *dev;
1886 p2p_set_state(p2p, P2P_SEARCH);
1887 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
1888 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
1889 if (p2p_start_sd(p2p, dev) == 0)
1893 } else if (dev->req_config_methods) {
1894 if (p2p_send_prov_disc_req(p2p, dev, 0) == 0)
1899 p2p_listen_in_find(p2p);
1903 static void p2p_sd_cb(struct p2p_data *p2p, int success)
1905 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1906 "P2P: Service Discovery Query TX callback: success=%d",
1908 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1912 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
1913 p2p->sd_peer = NULL;
1915 p2p_continue_find(p2p);
1919 if (p2p->sd_peer == NULL) {
1920 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1921 "P2P: No SD peer entry known");
1922 p2p_continue_find(p2p);
1926 /* Wait for response from the peer */
1927 p2p_set_state(p2p, P2P_SD_DURING_FIND);
1928 p2p_set_timeout(p2p, 0, 200000);
1932 static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
1934 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1935 "P2P: Provision Discovery Request TX callback: success=%d",
1937 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1940 if (p2p->state != P2P_IDLE)
1941 p2p_continue_find(p2p);
1945 /* Wait for response from the peer */
1946 if (p2p->state == P2P_SEARCH)
1947 p2p_set_state(p2p, P2P_PD_DURING_FIND);
1948 p2p_set_timeout(p2p, 0, 200000);
1952 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1953 int level, const u8 *ies, size_t ies_len)
1955 p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
1957 if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
1958 os_memcmp(p2p->go_neg_peer->p2p_device_addr, bssid, ETH_ALEN) == 0)
1960 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1961 "P2P: Found GO Negotiation peer - try to start GO "
1963 p2p_connect_send(p2p, p2p->go_neg_peer);
1971 void p2p_scan_res_handled(struct p2p_data *p2p)
1973 if (!p2p->p2p_scan_running) {
1974 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
1975 "running, but scan results received");
1977 p2p->p2p_scan_running = 0;
1978 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1980 if (p2p_run_after_scan(p2p))
1982 if (p2p->state == P2P_SEARCH)
1983 p2p_continue_find(p2p);
1987 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies)
1989 u8 *len = p2p_buf_add_ie_hdr(ies);
1990 p2p_buf_add_capability(ies, p2p->dev_capab, 0);
1991 if (p2p->cfg->reg_class && p2p->cfg->channel)
1992 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
1993 p2p->cfg->reg_class,
1995 if (p2p->ext_listen_interval)
1996 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
1997 p2p->ext_listen_interval);
1998 /* TODO: p2p_buf_add_operating_channel() if GO */
1999 p2p_buf_update_ie_hdr(ies, len);
2003 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2005 return p2p_attr_text(p2p_ie, buf, end);
2009 static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2011 struct p2p_device *dev = p2p->go_neg_peer;
2013 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2014 "P2P: GO Negotiation Request TX callback: success=%d",
2018 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2019 "P2P: No pending GO Negotiation");
2024 dev->go_neg_req_sent++;
2025 if (dev->flags & P2P_DEV_USER_REJECTED) {
2026 p2p_set_state(p2p, P2P_IDLE);
2032 (dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
2033 !is_zero_ether_addr(dev->member_in_go_dev)) {
2034 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2035 "P2P: Peer " MACSTR " did not acknowledge request - "
2036 "try to use device discoverability through its GO",
2037 MAC2STR(dev->p2p_device_addr));
2038 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2039 p2p_send_dev_disc_req(p2p, dev);
2044 * Use P2P find, if needed, to find the other device from its listen
2047 p2p_set_state(p2p, P2P_CONNECT);
2048 p2p_set_timeout(p2p, 0, 100000);
2052 static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2054 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2055 "P2P: GO Negotiation Response TX callback: success=%d",
2057 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2058 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2059 "P2P: Ignore TX callback event - GO Negotiation is "
2060 "not running anymore");
2063 p2p_set_state(p2p, P2P_CONNECT);
2064 p2p_set_timeout(p2p, 0, 100000);
2068 static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2070 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2071 "P2P: GO Negotiation Response (failure) TX callback: "
2072 "success=%d", success);
2076 static void p2p_go_neg_conf_cb(struct p2p_data *p2p, int success)
2078 struct p2p_device *dev;
2080 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2081 "P2P: GO Negotiation Confirm TX callback: success=%d",
2083 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2086 * It looks like the TX status for GO Negotiation Confirm is
2087 * often showing failure even when the peer has actually
2088 * received the frame. Since the peer may change channels
2089 * immediately after having received the frame, we may not see
2090 * an Ack for retries, so just dropping a single frame may
2091 * trigger this. To allow the group formation to succeed if the
2092 * peer did indeed receive the frame, continue regardless of
2095 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2096 "P2P: Assume GO Negotiation Confirm TX was actually "
2097 "received by the peer even though Ack was not "
2101 dev = p2p->go_neg_peer;
2105 p2p_go_complete(p2p, dev);
2109 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
2110 const u8 *src, const u8 *bssid, int success)
2112 enum p2p_pending_action_state state;
2114 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2115 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
2116 " src=" MACSTR " bssid=" MACSTR " success=%d",
2117 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
2118 MAC2STR(bssid), success);
2119 state = p2p->pending_action_state;
2120 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2122 case P2P_NO_PENDING_ACTION:
2124 case P2P_PENDING_GO_NEG_REQUEST:
2125 p2p_go_neg_req_cb(p2p, success);
2127 case P2P_PENDING_GO_NEG_RESPONSE:
2128 p2p_go_neg_resp_cb(p2p, success);
2130 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2131 p2p_go_neg_resp_failure_cb(p2p, success);
2133 case P2P_PENDING_GO_NEG_CONFIRM:
2134 p2p_go_neg_conf_cb(p2p, success);
2136 case P2P_PENDING_SD:
2137 p2p_sd_cb(p2p, success);
2139 case P2P_PENDING_PD:
2140 p2p_prov_disc_cb(p2p, success);
2142 case P2P_PENDING_INVITATION_REQUEST:
2143 p2p_invitation_req_cb(p2p, success);
2145 case P2P_PENDING_INVITATION_RESPONSE:
2146 p2p_invitation_resp_cb(p2p, success);
2148 case P2P_PENDING_DEV_DISC_REQUEST:
2149 p2p_dev_disc_req_cb(p2p, success);
2151 case P2P_PENDING_DEV_DISC_RESPONSE:
2152 p2p_dev_disc_resp_cb(p2p, success);
2154 case P2P_PENDING_GO_DISC_REQ:
2155 p2p_go_disc_req_cb(p2p, success);
2161 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2162 unsigned int duration)
2164 if (freq == p2p->pending_client_disc_freq) {
2165 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2166 "P2P: Client discoverability remain-awake completed");
2167 p2p->pending_client_disc_freq = 0;
2171 if (freq != p2p->pending_listen_freq) {
2172 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2173 "P2P: Unexpected listen callback for freq=%u "
2174 "duration=%u (pending_listen_freq=%u)",
2175 freq, duration, p2p->pending_listen_freq);
2179 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2180 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2182 p2p->pending_listen_sec, p2p->pending_listen_usec,
2183 p2p->pending_listen_freq);
2185 p2p->drv_in_listen = 1;
2186 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
2188 * Add 20 msec extra wait to avoid race condition with driver
2189 * remain-on-channel end event, i.e., give driver more time to
2190 * complete the operation before our timeout expires.
2192 p2p_set_timeout(p2p, p2p->pending_listen_sec,
2193 p2p->pending_listen_usec + 20000);
2196 p2p->pending_listen_freq = 0;
2200 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
2202 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
2203 "state (freq=%u)", freq);
2204 p2p->drv_in_listen = 0;
2206 return 0; /* Internal timeout will trigger the next step */
2208 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
2209 p2p_set_state(p2p, P2P_CONNECT);
2210 p2p_connect_send(p2p, p2p->go_neg_peer);
2212 } else if (p2p->state == P2P_SEARCH) {
2221 static void p2p_timeout_connect(struct p2p_data *p2p)
2223 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2224 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
2225 p2p_listen_in_find(p2p);
2229 static void p2p_timeout_connect_listen(struct p2p_data *p2p)
2231 if (p2p->go_neg_peer) {
2232 if (p2p->drv_in_listen) {
2233 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
2234 "still in Listen state; wait for it to "
2238 p2p_set_state(p2p, P2P_CONNECT);
2239 p2p_connect_send(p2p, p2p->go_neg_peer);
2241 p2p_set_state(p2p, P2P_IDLE);
2245 static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
2248 * TODO: could remain constantly in Listen state for some time if there
2249 * are no other concurrent uses for the radio. For now, go to listen
2250 * state once per second to give other uses a chance to use the radio.
2252 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
2253 p2p_set_timeout(p2p, 1, 0);
2257 static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
2259 struct p2p_device *dev = p2p->go_neg_peer;
2262 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2263 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2268 if (dev->wait_count >= 120) {
2269 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2270 "P2P: Timeout on waiting peer to become ready for GO "
2272 p2p_go_neg_failed(p2p, dev, -1);
2276 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2277 "P2P: Go to Listen state while waiting for the peer to become "
2278 "ready for GO Negotiation");
2279 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
2280 p2p_listen_in_find(p2p);
2284 static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
2286 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2287 "P2P: Service Discovery Query timeout");
2289 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2290 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2291 p2p->sd_peer = NULL;
2293 p2p_continue_find(p2p);
2297 static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
2299 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2300 "P2P: Provision Discovery Request timeout");
2301 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2302 p2p_continue_find(p2p);
2306 static void p2p_timeout_invite(struct p2p_data *p2p)
2308 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2309 p2p_set_state(p2p, P2P_INVITE_LISTEN);
2310 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
2312 * Better remain on operating channel instead of listen channel
2313 * when running a group.
2315 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
2316 "active GO role - wait on operating channel");
2317 p2p_set_timeout(p2p, 0, 100000);
2320 p2p_listen_in_find(p2p);
2324 static void p2p_timeout_invite_listen(struct p2p_data *p2p)
2326 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
2327 p2p_set_state(p2p, P2P_INVITE);
2328 p2p_invite_send(p2p, p2p->invite_peer,
2329 p2p->invite_go_dev_addr);
2331 if (p2p->invite_peer) {
2332 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2333 "P2P: Invitation Request retry limit reached");
2334 if (p2p->cfg->invitation_result)
2335 p2p->cfg->invitation_result(
2336 p2p->cfg->cb_ctx, -1, NULL);
2338 p2p_set_state(p2p, P2P_IDLE);
2343 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
2345 struct p2p_data *p2p = eloop_ctx;
2347 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
2348 p2p_state_txt(p2p->state));
2352 switch (p2p->state) {
2359 p2p_timeout_connect(p2p);
2361 case P2P_CONNECT_LISTEN:
2362 p2p_timeout_connect_listen(p2p);
2366 case P2P_LISTEN_ONLY:
2367 if (p2p->ext_listen_only) {
2368 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2369 "P2P: Extended Listen Timing - Listen State "
2371 p2p->ext_listen_only = 0;
2372 p2p_set_state(p2p, P2P_IDLE);
2375 case P2P_WAIT_PEER_CONNECT:
2376 p2p_timeout_wait_peer_connect(p2p);
2378 case P2P_WAIT_PEER_IDLE:
2379 p2p_timeout_wait_peer_idle(p2p);
2381 case P2P_SD_DURING_FIND:
2382 p2p_timeout_sd_during_find(p2p);
2384 case P2P_PROVISIONING:
2386 case P2P_PD_DURING_FIND:
2387 p2p_timeout_prov_disc_during_find(p2p);
2390 p2p_timeout_invite(p2p);
2392 case P2P_INVITE_LISTEN:
2393 p2p_timeout_invite_listen(p2p);
2399 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
2401 struct p2p_device *dev;
2403 dev = p2p_get_device(p2p, peer_addr);
2404 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
2405 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
2407 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
2408 " unknown", MAC2STR(peer_addr));
2411 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
2412 dev->flags |= P2P_DEV_USER_REJECTED;
2417 static const char * p2p_wps_method_text(enum p2p_wps_method method)
2424 case WPS_PIN_DISPLAY:
2426 case WPS_PIN_KEYPAD:
2436 static const char * p2p_go_state_text(enum p2p_go_state go_state)
2451 int p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next,
2452 char *buf, size_t buflen)
2454 struct p2p_device *dev;
2458 char devtype[WPS_DEV_TYPE_BUFSIZE];
2461 dev = p2p_get_device(p2p, addr);
2463 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
2466 dev = dl_list_first(&dev->list, struct p2p_device, list);
2467 if (&dev->list == &p2p->devices)
2477 res = os_snprintf(pos, end - pos, MACSTR "\n",
2478 MAC2STR(dev->p2p_device_addr));
2479 if (res < 0 || res >= end - pos)
2484 res = os_snprintf(pos, end - pos,
2489 "interface_addr=" MACSTR "\n"
2490 "member_in_go_dev=" MACSTR "\n"
2491 "member_in_go_iface=" MACSTR "\n"
2494 "config_methods=0x%x\n"
2496 "group_capab=0x%x\n"
2497 "go_neg_req_sent=%d\n"
2500 "intended_addr=" MACSTR "\n"
2503 "req_config_methods=0x%x\n"
2504 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
2507 "invitation_reqs=%u\n",
2508 (int) (now.sec - dev->last_seen.sec),
2511 p2p_wps_method_text(dev->wps_method),
2512 MAC2STR(dev->interface_addr),
2513 MAC2STR(dev->member_in_go_dev),
2514 MAC2STR(dev->member_in_go_iface),
2515 wps_dev_type_bin2str(dev->pri_dev_type,
2516 devtype, sizeof(devtype)),
2518 dev->config_methods,
2521 dev->go_neg_req_sent,
2522 p2p_go_state_text(dev->go_state),
2524 MAC2STR(dev->intended_addr),
2525 dev->country[0] ? dev->country[0] : '_',
2526 dev->country[1] ? dev->country[1] : '_',
2528 dev->req_config_methods,
2529 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
2530 "[PROBE_REQ_ONLY]" : "",
2531 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
2532 dev->flags & P2P_DEV_NOT_YET_READY ?
2533 "[NOT_YET_READY]" : "",
2534 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
2535 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
2537 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
2538 "[PD_PEER_DISPLAY]" : "",
2539 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
2540 "[PD_PEER_KEYPAD]" : "",
2541 dev->flags & P2P_DEV_USER_REJECTED ?
2542 "[USER_REJECTED]" : "",
2543 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
2544 "[PEER_WAITING_RESPONSE]" : "",
2545 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
2546 "[PREFER_PERSISTENT_GROUP]" : "",
2547 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
2548 "[WAIT_GO_NEG_RESPONSE]" : "",
2549 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
2550 "[WAIT_GO_NEG_CONFIRM]" : "",
2551 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
2552 "[GROUP_CLIENT_ONLY]" : "",
2553 dev->flags & P2P_DEV_FORCE_FREQ ?
2557 dev->invitation_reqs);
2558 if (res < 0 || res >= end - pos)
2562 if (dev->ext_listen_period) {
2563 res = os_snprintf(pos, end - pos,
2564 "ext_listen_period=%u\n"
2565 "ext_listen_interval=%u\n",
2566 dev->ext_listen_period,
2567 dev->ext_listen_interval);
2568 if (res < 0 || res >= end - pos)
2573 if (dev->oper_ssid_len) {
2574 res = os_snprintf(pos, end - pos,
2576 wpa_ssid_txt(dev->oper_ssid,
2577 dev->oper_ssid_len));
2578 if (res < 0 || res >= end - pos)
2587 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
2590 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2591 "discoverability enabled");
2592 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2594 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2595 "discoverability disabled");
2596 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2601 static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
2602 u32 duration2, u32 interval2)
2605 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
2608 req = wpabuf_alloc(100);
2612 if (duration1 || interval1) {
2613 os_memset(&desc1, 0, sizeof(desc1));
2614 desc1.count_type = 1;
2615 desc1.duration = duration1;
2616 desc1.interval = interval1;
2619 if (duration2 || interval2) {
2620 os_memset(&desc2, 0, sizeof(desc2));
2621 desc2.count_type = 2;
2622 desc2.duration = duration2;
2623 desc2.interval = interval2;
2628 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
2629 len = p2p_buf_add_ie_hdr(req);
2630 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
2631 p2p_buf_update_ie_hdr(req, len);
2637 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
2638 const u8 *own_interface_addr, unsigned int freq,
2639 u32 duration1, u32 interval1, u32 duration2,
2644 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
2645 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
2646 "int1=%u dur2=%u int2=%u",
2647 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
2648 freq, duration1, interval1, duration2, interval2);
2650 req = p2p_build_presence_req(duration1, interval1, duration2,
2655 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2656 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, go_interface_addr,
2659 wpabuf_head(req), wpabuf_len(req), 200) < 0)
2661 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2662 "P2P: Failed to send Action frame");
2670 static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
2671 size_t noa_len, u8 dialog_token)
2673 struct wpabuf *resp;
2676 resp = wpabuf_alloc(100 + noa_len);
2680 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
2681 len = p2p_buf_add_ie_hdr(resp);
2682 p2p_buf_add_status(resp, status);
2684 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
2685 wpabuf_put_le16(resp, noa_len);
2686 wpabuf_put_data(resp, noa, noa_len);
2688 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
2689 p2p_buf_update_ie_hdr(resp, len);
2695 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
2696 const u8 *sa, const u8 *data, size_t len,
2699 struct p2p_message msg;
2701 struct wpabuf *resp;
2703 struct p2p_group *group = NULL;
2708 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2709 "P2P: Received P2P Action - P2P Presence Request");
2711 for (g = 0; g < p2p->num_groups; g++) {
2712 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
2714 group = p2p->groups[g];
2718 if (group == NULL) {
2719 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2720 "P2P: Ignore P2P Presence Request for unknown group "
2721 MACSTR, MAC2STR(da));
2725 if (p2p_parse(data, len, &msg) < 0) {
2726 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2727 "P2P: Failed to parse P2P Presence Request");
2728 status = P2P_SC_FAIL_INVALID_PARAMS;
2733 if (msg.noa == NULL) {
2734 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2735 "P2P: No NoA attribute in P2P Presence Request");
2736 status = P2P_SC_FAIL_INVALID_PARAMS;
2740 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
2743 if (p2p->cfg->get_noa)
2744 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
2748 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
2749 noa_len > 0 ? noa_len : 0,
2752 p2p_parse_free(&msg);
2756 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2757 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, rx_freq, sa, da, da,
2758 wpabuf_head(resp), wpabuf_len(resp), 200) <
2760 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2761 "P2P: Failed to send Action frame");
2767 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
2768 const u8 *sa, const u8 *data, size_t len)
2770 struct p2p_message msg;
2772 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2773 "P2P: Received P2P Action - P2P Presence Response");
2775 if (p2p_parse(data, len, &msg) < 0) {
2776 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2777 "P2P: Failed to parse P2P Presence Response");
2781 if (msg.status == NULL || msg.noa == NULL) {
2782 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2783 "P2P: No Status or NoA attribute in P2P Presence "
2785 p2p_parse_free(&msg);
2790 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2791 "P2P: P2P Presence Request was rejected: status %u",
2793 p2p_parse_free(&msg);
2797 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2798 "P2P: P2P Presence Request was accepted");
2799 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
2800 msg.noa, msg.noa_len);
2801 /* TODO: process NoA */
2802 p2p_parse_free(&msg);
2806 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
2808 struct p2p_data *p2p = eloop_ctx;
2810 if (p2p->ext_listen_interval) {
2811 /* Schedule next extended listen timeout */
2812 eloop_register_timeout(p2p->ext_listen_interval_sec,
2813 p2p->ext_listen_interval_usec,
2814 p2p_ext_listen_timeout, p2p, NULL);
2817 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
2819 * This should not really happen, but it looks like the Listen
2820 * command may fail is something else (e.g., a scan) was
2821 * running at an inconvenient time. As a workaround, allow new
2822 * Extended Listen operation to be started.
2824 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
2825 "Extended Listen operation had not been completed - "
2827 p2p->ext_listen_only = 0;
2828 p2p_set_state(p2p, P2P_IDLE);
2831 if (p2p->state != P2P_IDLE) {
2832 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
2833 "Listen timeout in active state (%s)",
2834 p2p_state_txt(p2p->state));
2838 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
2839 p2p->ext_listen_only = 1;
2840 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
2841 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
2842 "Listen state for Extended Listen Timing");
2843 p2p->ext_listen_only = 0;
2848 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
2849 unsigned int interval)
2851 if (period > 65535 || interval > 65535 || period > interval ||
2852 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
2853 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2854 "P2P: Invalid Extended Listen Timing request: "
2855 "period=%u interval=%u", period, interval);
2859 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2861 if (interval == 0) {
2862 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2863 "P2P: Disabling Extended Listen Timing");
2864 p2p->ext_listen_period = 0;
2865 p2p->ext_listen_interval = 0;
2869 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2870 "P2P: Enabling Extended Listen Timing: period %u msec, "
2871 "interval %u msec", period, interval);
2872 p2p->ext_listen_period = period;
2873 p2p->ext_listen_interval = interval;
2874 p2p->ext_listen_interval_sec = interval / 1000;
2875 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
2877 eloop_register_timeout(p2p->ext_listen_interval_sec,
2878 p2p->ext_listen_interval_usec,
2879 p2p_ext_listen_timeout, p2p, NULL);
2885 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
2886 const u8 *ie, size_t ie_len)
2888 struct p2p_message msg;
2890 if (bssid == NULL || ie == NULL)
2893 os_memset(&msg, 0, sizeof(msg));
2894 if (p2p_parse_ies(ie, ie_len, &msg))
2896 if (msg.minor_reason_code == NULL)
2899 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
2900 "P2P: Deauthentication notification BSSID " MACSTR
2901 " reason_code=%u minor_reason_code=%u",
2902 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
2904 p2p_parse_free(&msg);
2908 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
2909 const u8 *ie, size_t ie_len)
2911 struct p2p_message msg;
2913 if (bssid == NULL || ie == NULL)
2916 os_memset(&msg, 0, sizeof(msg));
2917 if (p2p_parse_ies(ie, ie_len, &msg))
2919 if (msg.minor_reason_code == NULL)
2922 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
2923 "P2P: Disassociation notification BSSID " MACSTR
2924 " reason_code=%u minor_reason_code=%u",
2925 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
2927 p2p_parse_free(&msg);
2931 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
2934 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2935 "Device operations enabled");
2936 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
2938 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2939 "Device operations disabled");
2940 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
2945 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
2947 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
2950 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
2951 "reg_class %u channel %u", reg_class, channel);
2952 p2p->cfg->reg_class = reg_class;
2953 p2p->cfg->channel = channel;
2959 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
2961 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
2962 if (postfix == NULL) {
2963 p2p->cfg->ssid_postfix_len = 0;
2966 if (len > sizeof(p2p->cfg->ssid_postfix))
2968 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
2969 p2p->cfg->ssid_postfix_len = len;
2974 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
2977 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
2978 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
2980 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
2985 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
2988 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
2991 os_memcpy(dev_addr, dev->p2p_device_addr, ETH_ALEN);
2996 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
2998 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
2999 if (is_zero_ether_addr(p2p->peer_filter))
3000 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3003 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3004 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3008 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3010 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
3011 enabled ? "enabled" : "disabled");
3012 if (p2p->cross_connect == enabled)
3014 p2p->cross_connect = enabled;
3015 /* TODO: may need to tear down any action group where we are GO(?) */
3019 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3021 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3024 if (dev->oper_freq <= 0)
3026 return dev->oper_freq;