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 static int p2p_prepare_channel(struct p2p_data *p2p, unsigned int force_freq)
803 u8 op_reg_class, op_channel;
804 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
805 &op_reg_class, &op_channel) < 0) {
806 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
807 "P2P: Unsupported frequency %u MHz",
811 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
813 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
814 "P2P: Frequency %u MHz (oper_class %u "
815 "channel %u) not allowed for P2P",
816 force_freq, op_reg_class, op_channel);
819 p2p->op_reg_class = op_reg_class;
820 p2p->op_channel = op_channel;
821 p2p->channels.reg_classes = 1;
822 p2p->channels.reg_class[0].channels = 1;
823 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
824 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
826 p2p->op_reg_class = p2p->cfg->op_reg_class;
827 p2p->op_channel = p2p->cfg->op_channel;
828 os_memcpy(&p2p->channels, &p2p->cfg->channels,
829 sizeof(struct p2p_channels));
831 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
832 "P2P: Own preference for operation channel: "
833 "Regulatory Class %u Channel %u%s",
834 p2p->op_reg_class, p2p->op_channel,
835 force_freq ? " (forced)" : "");
841 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
842 enum p2p_wps_method wps_method,
843 int go_intent, const u8 *own_interface_addr,
844 unsigned int force_freq, int persistent_group)
846 struct p2p_device *dev;
848 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
849 "P2P: Request to start group negotiation - peer=" MACSTR
850 " GO Intent=%d Intended Interface Address=" MACSTR
851 " wps_method=%d persistent_group=%d",
852 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
853 wps_method, persistent_group);
855 if (p2p_prepare_channel(p2p, force_freq) < 0)
858 dev = p2p_get_device(p2p, peer_addr);
859 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
860 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
861 "P2P: Cannot connect to unknown P2P Device " MACSTR,
866 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
867 if (!(dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
868 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
869 "P2P: Cannot connect to P2P Device " MACSTR
870 " that is in a group and is not discoverable",
874 if (dev->oper_freq <= 0) {
875 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
876 "P2P: Cannot connect to P2P Device " MACSTR
877 " with incomplete information",
883 * First, try to connect directly. If the peer does not
884 * acknowledge frames, assume it is sleeping and use device
885 * discoverability via the GO at that point.
889 dev->flags &= ~P2P_DEV_NOT_YET_READY;
890 dev->flags &= ~P2P_DEV_USER_REJECTED;
891 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
892 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
893 dev->go_neg_req_sent = 0;
894 dev->go_state = UNKNOWN_GO;
895 if (persistent_group)
896 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
898 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
899 p2p->go_intent = go_intent;
900 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
902 if (p2p->state != P2P_IDLE)
905 dev->wps_method = wps_method;
906 dev->status = P2P_SC_SUCCESS;
909 dev->flags |= P2P_DEV_FORCE_FREQ;
911 dev->flags &= ~P2P_DEV_FORCE_FREQ;
913 if (p2p->p2p_scan_running) {
914 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
915 "P2P: p2p_scan running - delay connect send");
916 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
917 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
920 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
922 return p2p_connect_send(p2p, dev);
926 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
927 enum p2p_wps_method wps_method,
928 int go_intent, const u8 *own_interface_addr,
929 unsigned int force_freq, int persistent_group)
931 struct p2p_device *dev;
933 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
934 "P2P: Request to authorize group negotiation - peer=" MACSTR
935 " GO Intent=%d Intended Interface Address=" MACSTR
936 " wps_method=%d persistent_group=%d",
937 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
938 wps_method, persistent_group);
940 if (p2p_prepare_channel(p2p, force_freq) < 0)
943 dev = p2p_get_device(p2p, peer_addr);
945 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
946 "P2P: Cannot authorize unknown P2P Device " MACSTR,
951 dev->flags &= ~P2P_DEV_NOT_YET_READY;
952 dev->flags &= ~P2P_DEV_USER_REJECTED;
953 dev->go_neg_req_sent = 0;
954 dev->go_state = UNKNOWN_GO;
955 if (persistent_group)
956 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
958 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
959 p2p->go_intent = go_intent;
960 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
962 dev->wps_method = wps_method;
963 dev->status = P2P_SC_SUCCESS;
966 dev->flags |= P2P_DEV_FORCE_FREQ;
968 dev->flags &= ~P2P_DEV_FORCE_FREQ;
974 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
975 struct p2p_device *dev, struct p2p_message *msg)
977 os_get_time(&dev->last_seen);
979 if (msg->pri_dev_type)
980 os_memcpy(dev->pri_dev_type, msg->pri_dev_type,
981 sizeof(dev->pri_dev_type));
982 os_memcpy(dev->device_name, msg->device_name,
983 sizeof(dev->device_name));
984 dev->config_methods = msg->config_methods ? msg->config_methods :
985 msg->wps_config_methods;
986 if (msg->capability) {
987 dev->dev_capab = msg->capability[0];
988 dev->group_capab = msg->capability[1];
990 if (msg->listen_channel) {
992 freq = p2p_channel_to_freq((char *) msg->listen_channel,
993 msg->listen_channel[3],
994 msg->listen_channel[4]);
996 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
997 "P2P: Unknown peer Listen channel: "
998 "country=%c%c(0x%02x) reg_class=%u channel=%u",
999 msg->listen_channel[0],
1000 msg->listen_channel[1],
1001 msg->listen_channel[2],
1002 msg->listen_channel[3],
1003 msg->listen_channel[4]);
1005 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1006 "peer " MACSTR " Listen channel: %u -> %u MHz",
1007 MAC2STR(dev->p2p_device_addr),
1008 dev->listen_freq, freq);
1009 dev->listen_freq = freq;
1012 if (msg->ext_listen_timing) {
1013 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
1014 dev->ext_listen_interval =
1015 WPA_GET_LE16(msg->ext_listen_timing + 2);
1018 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1019 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1020 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1021 "P2P: Completed device entry based on data from "
1022 "GO Negotiation Request");
1024 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1025 "P2P: Created device entry based on GO Neg Req: "
1026 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1028 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1029 dev->group_capab, dev->device_name, dev->listen_freq);
1032 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1034 if (dev->flags & P2P_DEV_USER_REJECTED) {
1035 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1036 "P2P: Do not report rejected device");
1040 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, dev->p2p_device_addr,
1041 dev->pri_dev_type, dev->device_name,
1042 dev->config_methods, dev->dev_capab,
1047 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1049 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1050 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1051 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1052 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1053 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1057 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1059 p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
1060 p2p_random(params->passphrase, 8);
1065 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1067 struct p2p_go_neg_results res;
1068 int go = peer->go_state == LOCAL_GO;
1069 struct p2p_channels intersection;
1073 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1074 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
1075 "GO)", MAC2STR(peer->p2p_device_addr),
1076 go ? "local end" : "peer");
1078 os_memset(&res, 0, sizeof(res));
1080 os_memcpy(res.peer_device_addr, peer->p2p_device_addr, ETH_ALEN);
1081 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1082 res.wps_method = peer->wps_method;
1083 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP)
1084 res.persistent_group = 1;
1087 /* Setup AP mode for WPS provisioning */
1088 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1091 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1092 res.ssid_len = p2p->ssid_len;
1093 p2p_random(res.passphrase, 8);
1095 res.freq = peer->oper_freq;
1096 if (p2p->ssid_len) {
1097 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1098 res.ssid_len = p2p->ssid_len;
1102 p2p_channels_intersect(&p2p->channels, &peer->channels,
1105 for (i = 0; i < intersection.reg_classes; i++) {
1106 struct p2p_reg_class *c = &intersection.reg_class[i];
1107 if (freqs + 1 == P2P_MAX_CHANNELS)
1109 for (j = 0; j < c->channels; j++) {
1111 if (freqs + 1 == P2P_MAX_CHANNELS)
1113 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1117 res.freq_list[freqs++] = freq;
1121 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1123 p2p_clear_timeout(p2p);
1124 peer->go_neg_req_sent = 0;
1125 peer->wps_method = WPS_NOT_READY;
1127 p2p_set_state(p2p, P2P_PROVISIONING);
1128 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1132 static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1133 const u8 *data, size_t len, int rx_freq)
1135 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1136 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1137 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1143 case P2P_GO_NEG_REQ:
1144 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1146 case P2P_GO_NEG_RESP:
1147 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1149 case P2P_GO_NEG_CONF:
1150 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1152 case P2P_INVITATION_REQ:
1153 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1156 case P2P_INVITATION_RESP:
1157 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1159 case P2P_PROV_DISC_REQ:
1160 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1162 case P2P_PROV_DISC_RESP:
1163 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1165 case P2P_DEV_DISC_REQ:
1166 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1168 case P2P_DEV_DISC_RESP:
1169 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1172 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1173 "P2P: Unsupported P2P Public Action frame type %d",
1180 void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1181 const u8 *bssid, const u8 *data, size_t len,
1188 case WLAN_PA_VENDOR_SPECIFIC:
1193 if (WPA_GET_BE24(data) != OUI_WFA)
1201 if (*data != P2P_OUI_TYPE)
1204 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1206 case WLAN_PA_GAS_INITIAL_REQ:
1207 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1209 case WLAN_PA_GAS_INITIAL_RESP:
1210 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1212 case WLAN_PA_GAS_COMEBACK_REQ:
1213 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1215 case WLAN_PA_GAS_COMEBACK_RESP:
1216 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
1222 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1223 const u8 *bssid, u8 category,
1224 const u8 *data, size_t len, int freq)
1226 if (category == WLAN_ACTION_PUBLIC) {
1227 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1231 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1237 if (WPA_GET_BE24(data) != OUI_WFA)
1242 if (*data != P2P_OUI_TYPE)
1247 /* P2P action frame */
1248 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1249 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1250 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1256 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1257 "P2P: Received P2P Action - Notice of Absence");
1260 case P2P_PRESENCE_REQ:
1261 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1263 case P2P_PRESENCE_RESP:
1264 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1266 case P2P_GO_DISC_REQ:
1267 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1270 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1271 "P2P: Received P2P Action - unknown type %u", data[0]);
1277 static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1279 struct p2p_data *p2p = eloop_ctx;
1280 if (p2p->go_neg_peer == NULL)
1282 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1283 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1284 p2p_connect_send(p2p, p2p->go_neg_peer);
1288 static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1290 struct p2p_data *p2p = eloop_ctx;
1291 if (p2p->invite_peer == NULL)
1293 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1294 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1298 static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1299 const u8 *ie, size_t ie_len)
1301 struct p2p_message msg;
1302 struct p2p_device *dev;
1304 os_memset(&msg, 0, sizeof(msg));
1305 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1307 p2p_parse_free(&msg);
1308 return; /* not a P2P probe */
1311 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1312 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1314 /* The Probe Request is not part of P2P Device Discovery. It is
1315 * not known whether the source address of the frame is the P2P
1316 * Device Address or P2P Interface Address. Do not add a new
1317 * peer entry based on this frames.
1319 p2p_parse_free(&msg);
1323 dev = p2p_get_device(p2p, addr);
1325 if (dev->country[0] == 0 && msg.listen_channel)
1326 os_memcpy(dev->country, msg.listen_channel, 3);
1327 p2p_parse_free(&msg);
1328 return; /* already known */
1331 dev = p2p_create_device(p2p, addr);
1333 p2p_parse_free(&msg);
1337 os_get_time(&dev->last_seen);
1338 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1340 if (msg.capability) {
1341 dev->dev_capab = msg.capability[0];
1342 dev->group_capab = msg.capability[1];
1345 if (msg.listen_channel) {
1346 os_memcpy(dev->country, msg.listen_channel, 3);
1347 dev->listen_freq = p2p_channel_to_freq(dev->country,
1348 msg.listen_channel[3],
1349 msg.listen_channel[4]);
1352 os_memcpy(dev->device_name, msg.device_name, sizeof(dev->device_name));
1354 if (msg.wps_pri_dev_type)
1355 os_memcpy(dev->pri_dev_type, msg.wps_pri_dev_type,
1356 sizeof(dev->pri_dev_type));
1358 p2p_parse_free(&msg);
1360 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1361 "P2P: Created device entry based on Probe Req: " MACSTR
1362 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1363 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1364 dev->group_capab, dev->device_name, dev->listen_freq);
1368 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1370 struct p2p_message *msg)
1372 struct p2p_device *dev;
1374 dev = p2p_get_device(p2p, addr);
1376 os_get_time(&dev->last_seen);
1377 return dev; /* already known */
1380 dev = p2p_create_device(p2p, addr);
1384 p2p_add_dev_info(p2p, addr, dev, msg);
1390 static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1392 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1394 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1395 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1396 WPA_GET_BE16(&req_dev_type[6]) == 0)
1397 return 1; /* Category match with wildcard OUI/sub-category */
1402 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1403 size_t num_req_dev_type)
1406 for (i = 0; i < num_req_dev_type; i++) {
1407 if (dev_type_match(dev_type, req_dev_type[i]))
1415 * p2p_match_dev_type - Match local device type with requested type
1416 * @p2p: P2P module context from p2p_init()
1417 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1418 * Returns: 1 on match, 0 on mismatch
1420 * This function can be used to match the Requested Device Type attribute in
1421 * WPS IE with the local device types for deciding whether to reply to a Probe
1424 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1426 struct wps_parse_attr attr;
1429 if (wps_parse_msg(wps, &attr))
1430 return 1; /* assume no Requested Device Type attributes */
1432 if (attr.num_req_dev_type == 0)
1433 return 1; /* no Requested Device Type attributes -> match */
1435 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1436 attr.num_req_dev_type))
1437 return 1; /* Own Primary Device Type matches */
1439 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1440 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1442 attr.num_req_dev_type))
1443 return 1; /* Own Secondary Device Type matches */
1445 /* No matching device type found */
1450 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1455 buf = wpabuf_alloc(1000);
1459 /* TODO: add more info into WPS IE; maybe get from WPS module? */
1460 p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
1463 len = p2p_buf_add_ie_hdr(buf);
1464 p2p_buf_add_capability(buf, p2p->dev_capab, 0);
1465 if (p2p->ext_listen_interval)
1466 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1467 p2p->ext_listen_interval);
1468 p2p_buf_add_device_info(buf, p2p, NULL);
1469 p2p_buf_update_ie_hdr(buf, len);
1475 static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1478 struct ieee802_11_elems elems;
1480 struct ieee80211_mgmt *resp;
1484 if (!p2p->in_listen || !p2p->drv_in_listen) {
1485 /* not in Listen state - ignore Probe Request */
1489 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1491 /* Ignore invalid Probe Request frames */
1495 if (elems.p2p == NULL) {
1496 /* not a P2P probe - ignore it */
1500 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1501 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1503 /* not using P2P Wildcard SSID - ignore */
1507 /* Check Requested Device Type match */
1508 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1509 if (wps && !p2p_match_dev_type(p2p, wps)) {
1511 /* No match with Requested Device Type */
1516 if (!p2p->cfg->send_probe_resp)
1517 return; /* Response generated elsewhere */
1519 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1520 "P2P: Reply to P2P Probe Request in Listen state");
1523 * We do not really have a specific BSS that this frame is advertising,
1524 * so build a frame that has some information in valid format. This is
1525 * really only used for discovery purposes, not to learn exact BSS
1528 ies = p2p_build_probe_resp_ies(p2p);
1532 buf = wpabuf_alloc(200 + wpabuf_len(ies));
1539 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
1541 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
1542 (WLAN_FC_STYPE_PROBE_RESP << 4));
1543 os_memcpy(resp->da, addr, ETH_ALEN);
1544 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
1545 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
1546 resp->u.probe_resp.beacon_int = host_to_le16(100);
1547 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1548 resp->u.probe_resp.capab_info =
1549 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
1550 WLAN_CAPABILITY_PRIVACY |
1551 WLAN_CAPABILITY_SHORT_SLOT_TIME);
1553 wpabuf_put_u8(buf, WLAN_EID_SSID);
1554 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
1555 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1557 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
1558 wpabuf_put_u8(buf, 8);
1559 wpabuf_put_u8(buf, (60 / 5) | 0x80);
1560 wpabuf_put_u8(buf, 90 / 5);
1561 wpabuf_put_u8(buf, (120 / 5) | 0x80);
1562 wpabuf_put_u8(buf, 180 / 5);
1563 wpabuf_put_u8(buf, (240 / 5) | 0x80);
1564 wpabuf_put_u8(buf, 360 / 5);
1565 wpabuf_put_u8(buf, 480 / 5);
1566 wpabuf_put_u8(buf, 540 / 5);
1568 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
1569 wpabuf_put_u8(buf, 1);
1570 wpabuf_put_u8(buf, p2p->cfg->channel);
1572 wpabuf_put_buf(buf, ies);
1575 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
1581 int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1584 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
1586 p2p_reply_probe(p2p, addr, ie, ie_len);
1588 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
1590 os_memcmp(addr, p2p->go_neg_peer->p2p_device_addr, ETH_ALEN) == 0)
1592 /* Received a Probe Request from GO Negotiation peer */
1593 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1594 "P2P: Found GO Negotiation peer - try to start GO "
1595 "negotiation from timeout");
1596 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
1600 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
1602 os_memcmp(addr, p2p->invite_peer->p2p_device_addr, ETH_ALEN) == 0)
1604 /* Received a Probe Request from Invite peer */
1605 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1606 "P2P: Found Invite peer - try to start Invite from "
1608 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
1616 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
1617 u8 *buf, size_t len, struct wpabuf *p2p_ie)
1626 return 0; /* WLAN AP is not a P2P manager */
1629 * (Re)Association Request - P2P IE
1630 * P2P Capability attribute (shall be present)
1631 * P2P Interface attribute (present if concurrent device and
1632 * P2P Management is enabled)
1634 tmp = wpabuf_alloc(200);
1638 lpos = p2p_buf_add_ie_hdr(tmp);
1640 if (p2p->num_groups > 0) {
1641 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
1642 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1643 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
1645 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
1647 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
1648 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1649 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
1650 p2p_buf_add_p2p_interface(tmp, p2p);
1651 p2p_buf_update_ie_hdr(tmp, lpos);
1653 tmplen = wpabuf_len(tmp);
1657 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1666 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1667 size_t len, int p2p_group, struct wpabuf *p2p_ie)
1671 struct p2p_device *peer;
1676 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
1679 * (Re)Association Request - P2P IE
1680 * P2P Capability attribute (shall be present)
1681 * Extended Listen Timing (may be present)
1682 * P2P Device Info attribute (shall be present)
1684 tmp = wpabuf_alloc(200);
1688 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
1690 lpos = p2p_buf_add_ie_hdr(tmp);
1691 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
1692 if (p2p->ext_listen_interval)
1693 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
1694 p2p->ext_listen_interval);
1695 p2p_buf_add_device_info(tmp, p2p, peer);
1696 p2p_buf_update_ie_hdr(tmp, lpos);
1698 tmplen = wpabuf_len(tmp);
1702 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1711 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
1713 struct wpabuf *p2p_ie;
1716 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
1720 ret = p2p_attr_text(p2p_ie, buf, end);
1721 wpabuf_free(p2p_ie);
1726 static void p2p_clear_go_neg(struct p2p_data *p2p)
1728 p2p->go_neg_peer = NULL;
1729 p2p_clear_timeout(p2p);
1730 p2p_set_state(p2p, P2P_IDLE);
1734 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
1736 if (p2p->go_neg_peer == NULL) {
1737 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1738 "P2P: No pending Group Formation - "
1739 "ignore WPS registration success notification");
1740 return; /* No pending Group Formation */
1743 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
1745 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1746 "P2P: Ignore WPS registration success notification "
1747 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
1749 MAC2STR(p2p->go_neg_peer->intended_addr));
1750 return; /* Ignore unexpected peer address */
1753 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1754 "P2P: Group Formation completed successfully with " MACSTR,
1757 p2p_clear_go_neg(p2p);
1761 void p2p_group_formation_failed(struct p2p_data *p2p)
1763 if (p2p->go_neg_peer == NULL) {
1764 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1765 "P2P: No pending Group Formation - "
1766 "ignore group formation failure notification");
1767 return; /* No pending Group Formation */
1770 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1771 "P2P: Group Formation failed with " MACSTR,
1772 MAC2STR(p2p->go_neg_peer->intended_addr));
1774 p2p_clear_go_neg(p2p);
1778 struct p2p_data * p2p_init(const struct p2p_config *cfg)
1780 struct p2p_data *p2p;
1782 if (cfg->max_peers < 1)
1785 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
1788 p2p->cfg = (struct p2p_config *) (p2p + 1);
1789 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
1791 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
1793 p2p->min_disc_int = 1;
1794 p2p->max_disc_int = 3;
1796 os_get_random(&p2p->next_tie_breaker, 1);
1797 p2p->next_tie_breaker &= 0x01;
1798 if (cfg->sd_request)
1799 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
1800 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
1801 if (cfg->concurrent_operations)
1802 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
1803 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
1805 dl_list_init(&p2p->devices);
1807 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
1808 p2p_expiration_timeout, p2p, NULL);
1814 void p2p_deinit(struct p2p_data *p2p)
1816 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
1817 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
1818 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1820 os_free(p2p->cfg->dev_name);
1821 os_free(p2p->groups);
1822 wpabuf_free(p2p->sd_resp);
1827 void p2p_flush(struct p2p_data *p2p)
1829 struct p2p_device *dev, *prev;
1830 p2p_clear_timeout(p2p);
1831 p2p_set_state(p2p, P2P_IDLE);
1832 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1833 p2p->go_neg_peer = NULL;
1834 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1835 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
1837 dl_list_del(&dev->list);
1838 p2p_device_free(p2p, dev);
1840 p2p_free_sd_queries(p2p);
1844 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
1846 os_free(p2p->cfg->dev_name);
1848 p2p->cfg->dev_name = os_strdup(dev_name);
1849 if (p2p->cfg->dev_name == NULL)
1852 p2p->cfg->dev_name = NULL;
1857 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
1859 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
1864 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
1865 size_t num_dev_types)
1867 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
1868 num_dev_types = P2P_SEC_DEVICE_TYPES;
1869 p2p->cfg->num_sec_dev_types = num_dev_types;
1870 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
1875 int p2p_set_country(struct p2p_data *p2p, const char *country)
1877 os_memcpy(p2p->cfg->country, country, 3);
1882 void p2p_continue_find(struct p2p_data *p2p)
1884 struct p2p_device *dev;
1885 p2p_set_state(p2p, P2P_SEARCH);
1886 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
1887 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
1888 if (p2p_start_sd(p2p, dev) == 0)
1892 } else if (dev->req_config_methods) {
1893 if (p2p_send_prov_disc_req(p2p, dev, 0) == 0)
1898 p2p_listen_in_find(p2p);
1902 static void p2p_sd_cb(struct p2p_data *p2p, int success)
1904 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1905 "P2P: Service Discovery Query TX callback: success=%d",
1907 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1911 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
1912 p2p->sd_peer = NULL;
1914 p2p_continue_find(p2p);
1918 if (p2p->sd_peer == NULL) {
1919 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1920 "P2P: No SD peer entry known");
1921 p2p_continue_find(p2p);
1925 /* Wait for response from the peer */
1926 p2p_set_state(p2p, P2P_SD_DURING_FIND);
1927 p2p_set_timeout(p2p, 0, 200000);
1931 static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
1933 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1934 "P2P: Provision Discovery Request TX callback: success=%d",
1936 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1939 if (p2p->state != P2P_IDLE)
1940 p2p_continue_find(p2p);
1944 /* Wait for response from the peer */
1945 if (p2p->state == P2P_SEARCH)
1946 p2p_set_state(p2p, P2P_PD_DURING_FIND);
1947 p2p_set_timeout(p2p, 0, 200000);
1951 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1952 int level, const u8 *ies, size_t ies_len)
1954 p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
1956 if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
1957 os_memcmp(p2p->go_neg_peer->p2p_device_addr, bssid, ETH_ALEN) == 0)
1959 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1960 "P2P: Found GO Negotiation peer - try to start GO "
1962 p2p_connect_send(p2p, p2p->go_neg_peer);
1970 void p2p_scan_res_handled(struct p2p_data *p2p)
1972 if (!p2p->p2p_scan_running) {
1973 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
1974 "running, but scan results received");
1976 p2p->p2p_scan_running = 0;
1977 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1979 if (p2p_run_after_scan(p2p))
1981 if (p2p->state == P2P_SEARCH)
1982 p2p_continue_find(p2p);
1986 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies)
1988 u8 *len = p2p_buf_add_ie_hdr(ies);
1989 p2p_buf_add_capability(ies, p2p->dev_capab, 0);
1990 if (p2p->cfg->reg_class && p2p->cfg->channel)
1991 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
1992 p2p->cfg->reg_class,
1994 if (p2p->ext_listen_interval)
1995 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
1996 p2p->ext_listen_interval);
1997 /* TODO: p2p_buf_add_operating_channel() if GO */
1998 p2p_buf_update_ie_hdr(ies, len);
2002 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2004 return p2p_attr_text(p2p_ie, buf, end);
2008 static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2010 struct p2p_device *dev = p2p->go_neg_peer;
2012 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2013 "P2P: GO Negotiation Request TX callback: success=%d",
2017 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2018 "P2P: No pending GO Negotiation");
2023 dev->go_neg_req_sent++;
2024 if (dev->flags & P2P_DEV_USER_REJECTED) {
2025 p2p_set_state(p2p, P2P_IDLE);
2031 (dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
2032 !is_zero_ether_addr(dev->member_in_go_dev)) {
2033 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2034 "P2P: Peer " MACSTR " did not acknowledge request - "
2035 "try to use device discoverability through its GO",
2036 MAC2STR(dev->p2p_device_addr));
2037 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2038 p2p_send_dev_disc_req(p2p, dev);
2043 * Use P2P find, if needed, to find the other device from its listen
2046 p2p_set_state(p2p, P2P_CONNECT);
2047 p2p_set_timeout(p2p, 0, 100000);
2051 static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2053 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2054 "P2P: GO Negotiation Response TX callback: success=%d",
2056 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2057 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2058 "P2P: Ignore TX callback event - GO Negotiation is "
2059 "not running anymore");
2062 p2p_set_state(p2p, P2P_CONNECT);
2063 p2p_set_timeout(p2p, 0, 100000);
2067 static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2069 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2070 "P2P: GO Negotiation Response (failure) TX callback: "
2071 "success=%d", success);
2072 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2073 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2074 p2p->go_neg_peer->status);
2079 static void p2p_go_neg_conf_cb(struct p2p_data *p2p, int success)
2081 struct p2p_device *dev;
2083 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2084 "P2P: GO Negotiation Confirm TX callback: success=%d",
2086 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2089 * It looks like the TX status for GO Negotiation Confirm is
2090 * often showing failure even when the peer has actually
2091 * received the frame. Since the peer may change channels
2092 * immediately after having received the frame, we may not see
2093 * an Ack for retries, so just dropping a single frame may
2094 * trigger this. To allow the group formation to succeed if the
2095 * peer did indeed receive the frame, continue regardless of
2098 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2099 "P2P: Assume GO Negotiation Confirm TX was actually "
2100 "received by the peer even though Ack was not "
2104 dev = p2p->go_neg_peer;
2108 p2p_go_complete(p2p, dev);
2112 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
2113 const u8 *src, const u8 *bssid, int success)
2115 enum p2p_pending_action_state state;
2117 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2118 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
2119 " src=" MACSTR " bssid=" MACSTR " success=%d",
2120 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
2121 MAC2STR(bssid), success);
2122 state = p2p->pending_action_state;
2123 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2125 case P2P_NO_PENDING_ACTION:
2127 case P2P_PENDING_GO_NEG_REQUEST:
2128 p2p_go_neg_req_cb(p2p, success);
2130 case P2P_PENDING_GO_NEG_RESPONSE:
2131 p2p_go_neg_resp_cb(p2p, success);
2133 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2134 p2p_go_neg_resp_failure_cb(p2p, success);
2136 case P2P_PENDING_GO_NEG_CONFIRM:
2137 p2p_go_neg_conf_cb(p2p, success);
2139 case P2P_PENDING_SD:
2140 p2p_sd_cb(p2p, success);
2142 case P2P_PENDING_PD:
2143 p2p_prov_disc_cb(p2p, success);
2145 case P2P_PENDING_INVITATION_REQUEST:
2146 p2p_invitation_req_cb(p2p, success);
2148 case P2P_PENDING_INVITATION_RESPONSE:
2149 p2p_invitation_resp_cb(p2p, success);
2151 case P2P_PENDING_DEV_DISC_REQUEST:
2152 p2p_dev_disc_req_cb(p2p, success);
2154 case P2P_PENDING_DEV_DISC_RESPONSE:
2155 p2p_dev_disc_resp_cb(p2p, success);
2157 case P2P_PENDING_GO_DISC_REQ:
2158 p2p_go_disc_req_cb(p2p, success);
2164 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2165 unsigned int duration)
2167 if (freq == p2p->pending_client_disc_freq) {
2168 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2169 "P2P: Client discoverability remain-awake completed");
2170 p2p->pending_client_disc_freq = 0;
2174 if (freq != p2p->pending_listen_freq) {
2175 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2176 "P2P: Unexpected listen callback for freq=%u "
2177 "duration=%u (pending_listen_freq=%u)",
2178 freq, duration, p2p->pending_listen_freq);
2182 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2183 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2185 p2p->pending_listen_sec, p2p->pending_listen_usec,
2186 p2p->pending_listen_freq);
2188 p2p->drv_in_listen = 1;
2189 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
2191 * Add 20 msec extra wait to avoid race condition with driver
2192 * remain-on-channel end event, i.e., give driver more time to
2193 * complete the operation before our timeout expires.
2195 p2p_set_timeout(p2p, p2p->pending_listen_sec,
2196 p2p->pending_listen_usec + 20000);
2199 p2p->pending_listen_freq = 0;
2203 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
2205 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
2206 "state (freq=%u)", freq);
2207 p2p->drv_in_listen = 0;
2209 return 0; /* Internal timeout will trigger the next step */
2211 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
2212 p2p_set_state(p2p, P2P_CONNECT);
2213 p2p_connect_send(p2p, p2p->go_neg_peer);
2215 } else if (p2p->state == P2P_SEARCH) {
2224 static void p2p_timeout_connect(struct p2p_data *p2p)
2226 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2227 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
2228 p2p_listen_in_find(p2p);
2232 static void p2p_timeout_connect_listen(struct p2p_data *p2p)
2234 if (p2p->go_neg_peer) {
2235 if (p2p->drv_in_listen) {
2236 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
2237 "still in Listen state; wait for it to "
2241 p2p_set_state(p2p, P2P_CONNECT);
2242 p2p_connect_send(p2p, p2p->go_neg_peer);
2244 p2p_set_state(p2p, P2P_IDLE);
2248 static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
2251 * TODO: could remain constantly in Listen state for some time if there
2252 * are no other concurrent uses for the radio. For now, go to listen
2253 * state once per second to give other uses a chance to use the radio.
2255 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
2256 p2p_set_timeout(p2p, 1, 0);
2260 static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
2262 struct p2p_device *dev = p2p->go_neg_peer;
2265 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2266 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2271 if (dev->wait_count >= 120) {
2272 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2273 "P2P: Timeout on waiting peer to become ready for GO "
2275 p2p_go_neg_failed(p2p, dev, -1);
2279 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2280 "P2P: Go to Listen state while waiting for the peer to become "
2281 "ready for GO Negotiation");
2282 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
2283 p2p_listen_in_find(p2p);
2287 static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
2289 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2290 "P2P: Service Discovery Query timeout");
2292 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2293 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2294 p2p->sd_peer = NULL;
2296 p2p_continue_find(p2p);
2300 static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
2302 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2303 "P2P: Provision Discovery Request timeout");
2304 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2305 p2p_continue_find(p2p);
2309 static void p2p_timeout_invite(struct p2p_data *p2p)
2311 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2312 p2p_set_state(p2p, P2P_INVITE_LISTEN);
2313 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
2315 * Better remain on operating channel instead of listen channel
2316 * when running a group.
2318 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
2319 "active GO role - wait on operating channel");
2320 p2p_set_timeout(p2p, 0, 100000);
2323 p2p_listen_in_find(p2p);
2327 static void p2p_timeout_invite_listen(struct p2p_data *p2p)
2329 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
2330 p2p_set_state(p2p, P2P_INVITE);
2331 p2p_invite_send(p2p, p2p->invite_peer,
2332 p2p->invite_go_dev_addr);
2334 if (p2p->invite_peer) {
2335 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2336 "P2P: Invitation Request retry limit reached");
2337 if (p2p->cfg->invitation_result)
2338 p2p->cfg->invitation_result(
2339 p2p->cfg->cb_ctx, -1, NULL);
2341 p2p_set_state(p2p, P2P_IDLE);
2346 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
2348 struct p2p_data *p2p = eloop_ctx;
2350 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
2351 p2p_state_txt(p2p->state));
2355 switch (p2p->state) {
2362 p2p_timeout_connect(p2p);
2364 case P2P_CONNECT_LISTEN:
2365 p2p_timeout_connect_listen(p2p);
2369 case P2P_LISTEN_ONLY:
2370 if (p2p->ext_listen_only) {
2371 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2372 "P2P: Extended Listen Timing - Listen State "
2374 p2p->ext_listen_only = 0;
2375 p2p_set_state(p2p, P2P_IDLE);
2378 case P2P_WAIT_PEER_CONNECT:
2379 p2p_timeout_wait_peer_connect(p2p);
2381 case P2P_WAIT_PEER_IDLE:
2382 p2p_timeout_wait_peer_idle(p2p);
2384 case P2P_SD_DURING_FIND:
2385 p2p_timeout_sd_during_find(p2p);
2387 case P2P_PROVISIONING:
2389 case P2P_PD_DURING_FIND:
2390 p2p_timeout_prov_disc_during_find(p2p);
2393 p2p_timeout_invite(p2p);
2395 case P2P_INVITE_LISTEN:
2396 p2p_timeout_invite_listen(p2p);
2402 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
2404 struct p2p_device *dev;
2406 dev = p2p_get_device(p2p, peer_addr);
2407 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
2408 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
2410 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
2411 " unknown", MAC2STR(peer_addr));
2414 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
2415 dev->flags |= P2P_DEV_USER_REJECTED;
2420 static const char * p2p_wps_method_text(enum p2p_wps_method method)
2427 case WPS_PIN_DISPLAY:
2429 case WPS_PIN_KEYPAD:
2439 static const char * p2p_go_state_text(enum p2p_go_state go_state)
2454 int p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next,
2455 char *buf, size_t buflen)
2457 struct p2p_device *dev;
2461 char devtype[WPS_DEV_TYPE_BUFSIZE];
2464 dev = p2p_get_device(p2p, addr);
2466 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
2469 dev = dl_list_first(&dev->list, struct p2p_device, list);
2470 if (&dev->list == &p2p->devices)
2480 res = os_snprintf(pos, end - pos, MACSTR "\n",
2481 MAC2STR(dev->p2p_device_addr));
2482 if (res < 0 || res >= end - pos)
2487 res = os_snprintf(pos, end - pos,
2492 "interface_addr=" MACSTR "\n"
2493 "member_in_go_dev=" MACSTR "\n"
2494 "member_in_go_iface=" MACSTR "\n"
2497 "config_methods=0x%x\n"
2499 "group_capab=0x%x\n"
2500 "go_neg_req_sent=%d\n"
2503 "intended_addr=" MACSTR "\n"
2506 "req_config_methods=0x%x\n"
2507 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
2510 "invitation_reqs=%u\n",
2511 (int) (now.sec - dev->last_seen.sec),
2514 p2p_wps_method_text(dev->wps_method),
2515 MAC2STR(dev->interface_addr),
2516 MAC2STR(dev->member_in_go_dev),
2517 MAC2STR(dev->member_in_go_iface),
2518 wps_dev_type_bin2str(dev->pri_dev_type,
2519 devtype, sizeof(devtype)),
2521 dev->config_methods,
2524 dev->go_neg_req_sent,
2525 p2p_go_state_text(dev->go_state),
2527 MAC2STR(dev->intended_addr),
2528 dev->country[0] ? dev->country[0] : '_',
2529 dev->country[1] ? dev->country[1] : '_',
2531 dev->req_config_methods,
2532 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
2533 "[PROBE_REQ_ONLY]" : "",
2534 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
2535 dev->flags & P2P_DEV_NOT_YET_READY ?
2536 "[NOT_YET_READY]" : "",
2537 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
2538 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
2540 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
2541 "[PD_PEER_DISPLAY]" : "",
2542 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
2543 "[PD_PEER_KEYPAD]" : "",
2544 dev->flags & P2P_DEV_USER_REJECTED ?
2545 "[USER_REJECTED]" : "",
2546 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
2547 "[PEER_WAITING_RESPONSE]" : "",
2548 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
2549 "[PREFER_PERSISTENT_GROUP]" : "",
2550 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
2551 "[WAIT_GO_NEG_RESPONSE]" : "",
2552 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
2553 "[WAIT_GO_NEG_CONFIRM]" : "",
2554 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
2555 "[GROUP_CLIENT_ONLY]" : "",
2556 dev->flags & P2P_DEV_FORCE_FREQ ?
2560 dev->invitation_reqs);
2561 if (res < 0 || res >= end - pos)
2565 if (dev->ext_listen_period) {
2566 res = os_snprintf(pos, end - pos,
2567 "ext_listen_period=%u\n"
2568 "ext_listen_interval=%u\n",
2569 dev->ext_listen_period,
2570 dev->ext_listen_interval);
2571 if (res < 0 || res >= end - pos)
2576 if (dev->oper_ssid_len) {
2577 res = os_snprintf(pos, end - pos,
2579 wpa_ssid_txt(dev->oper_ssid,
2580 dev->oper_ssid_len));
2581 if (res < 0 || res >= end - pos)
2590 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
2593 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2594 "discoverability enabled");
2595 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2597 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2598 "discoverability disabled");
2599 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2604 static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
2605 u32 duration2, u32 interval2)
2608 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
2611 req = wpabuf_alloc(100);
2615 if (duration1 || interval1) {
2616 os_memset(&desc1, 0, sizeof(desc1));
2617 desc1.count_type = 1;
2618 desc1.duration = duration1;
2619 desc1.interval = interval1;
2622 if (duration2 || interval2) {
2623 os_memset(&desc2, 0, sizeof(desc2));
2624 desc2.count_type = 2;
2625 desc2.duration = duration2;
2626 desc2.interval = interval2;
2631 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
2632 len = p2p_buf_add_ie_hdr(req);
2633 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
2634 p2p_buf_update_ie_hdr(req, len);
2640 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
2641 const u8 *own_interface_addr, unsigned int freq,
2642 u32 duration1, u32 interval1, u32 duration2,
2647 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
2648 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
2649 "int1=%u dur2=%u int2=%u",
2650 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
2651 freq, duration1, interval1, duration2, interval2);
2653 req = p2p_build_presence_req(duration1, interval1, duration2,
2658 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2659 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, go_interface_addr,
2662 wpabuf_head(req), wpabuf_len(req), 200) < 0)
2664 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2665 "P2P: Failed to send Action frame");
2673 static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
2674 size_t noa_len, u8 dialog_token)
2676 struct wpabuf *resp;
2679 resp = wpabuf_alloc(100 + noa_len);
2683 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
2684 len = p2p_buf_add_ie_hdr(resp);
2685 p2p_buf_add_status(resp, status);
2687 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
2688 wpabuf_put_le16(resp, noa_len);
2689 wpabuf_put_data(resp, noa, noa_len);
2691 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
2692 p2p_buf_update_ie_hdr(resp, len);
2698 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
2699 const u8 *sa, const u8 *data, size_t len,
2702 struct p2p_message msg;
2704 struct wpabuf *resp;
2706 struct p2p_group *group = NULL;
2711 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2712 "P2P: Received P2P Action - P2P Presence Request");
2714 for (g = 0; g < p2p->num_groups; g++) {
2715 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
2717 group = p2p->groups[g];
2721 if (group == NULL) {
2722 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2723 "P2P: Ignore P2P Presence Request for unknown group "
2724 MACSTR, MAC2STR(da));
2728 if (p2p_parse(data, len, &msg) < 0) {
2729 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2730 "P2P: Failed to parse P2P Presence Request");
2731 status = P2P_SC_FAIL_INVALID_PARAMS;
2736 if (msg.noa == NULL) {
2737 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2738 "P2P: No NoA attribute in P2P Presence Request");
2739 status = P2P_SC_FAIL_INVALID_PARAMS;
2743 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
2746 if (p2p->cfg->get_noa)
2747 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
2751 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
2752 noa_len > 0 ? noa_len : 0,
2755 p2p_parse_free(&msg);
2759 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2760 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, rx_freq, sa, da, da,
2761 wpabuf_head(resp), wpabuf_len(resp), 200) <
2763 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2764 "P2P: Failed to send Action frame");
2770 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
2771 const u8 *sa, const u8 *data, size_t len)
2773 struct p2p_message msg;
2775 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2776 "P2P: Received P2P Action - P2P Presence Response");
2778 if (p2p_parse(data, len, &msg) < 0) {
2779 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2780 "P2P: Failed to parse P2P Presence Response");
2784 if (msg.status == NULL || msg.noa == NULL) {
2785 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2786 "P2P: No Status or NoA attribute in P2P Presence "
2788 p2p_parse_free(&msg);
2793 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2794 "P2P: P2P Presence Request was rejected: status %u",
2796 p2p_parse_free(&msg);
2800 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2801 "P2P: P2P Presence Request was accepted");
2802 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
2803 msg.noa, msg.noa_len);
2804 /* TODO: process NoA */
2805 p2p_parse_free(&msg);
2809 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
2811 struct p2p_data *p2p = eloop_ctx;
2813 if (p2p->ext_listen_interval) {
2814 /* Schedule next extended listen timeout */
2815 eloop_register_timeout(p2p->ext_listen_interval_sec,
2816 p2p->ext_listen_interval_usec,
2817 p2p_ext_listen_timeout, p2p, NULL);
2820 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
2822 * This should not really happen, but it looks like the Listen
2823 * command may fail is something else (e.g., a scan) was
2824 * running at an inconvenient time. As a workaround, allow new
2825 * Extended Listen operation to be started.
2827 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
2828 "Extended Listen operation had not been completed - "
2830 p2p->ext_listen_only = 0;
2831 p2p_set_state(p2p, P2P_IDLE);
2834 if (p2p->state != P2P_IDLE) {
2835 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
2836 "Listen timeout in active state (%s)",
2837 p2p_state_txt(p2p->state));
2841 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
2842 p2p->ext_listen_only = 1;
2843 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
2844 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
2845 "Listen state for Extended Listen Timing");
2846 p2p->ext_listen_only = 0;
2851 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
2852 unsigned int interval)
2854 if (period > 65535 || interval > 65535 || period > interval ||
2855 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
2856 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2857 "P2P: Invalid Extended Listen Timing request: "
2858 "period=%u interval=%u", period, interval);
2862 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2864 if (interval == 0) {
2865 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2866 "P2P: Disabling Extended Listen Timing");
2867 p2p->ext_listen_period = 0;
2868 p2p->ext_listen_interval = 0;
2872 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2873 "P2P: Enabling Extended Listen Timing: period %u msec, "
2874 "interval %u msec", period, interval);
2875 p2p->ext_listen_period = period;
2876 p2p->ext_listen_interval = interval;
2877 p2p->ext_listen_interval_sec = interval / 1000;
2878 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
2880 eloop_register_timeout(p2p->ext_listen_interval_sec,
2881 p2p->ext_listen_interval_usec,
2882 p2p_ext_listen_timeout, p2p, NULL);
2888 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
2889 const u8 *ie, size_t ie_len)
2891 struct p2p_message msg;
2893 if (bssid == NULL || ie == NULL)
2896 os_memset(&msg, 0, sizeof(msg));
2897 if (p2p_parse_ies(ie, ie_len, &msg))
2899 if (msg.minor_reason_code == NULL)
2902 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
2903 "P2P: Deauthentication notification BSSID " MACSTR
2904 " reason_code=%u minor_reason_code=%u",
2905 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
2907 p2p_parse_free(&msg);
2911 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
2912 const u8 *ie, size_t ie_len)
2914 struct p2p_message msg;
2916 if (bssid == NULL || ie == NULL)
2919 os_memset(&msg, 0, sizeof(msg));
2920 if (p2p_parse_ies(ie, ie_len, &msg))
2922 if (msg.minor_reason_code == NULL)
2925 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
2926 "P2P: Disassociation notification BSSID " MACSTR
2927 " reason_code=%u minor_reason_code=%u",
2928 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
2930 p2p_parse_free(&msg);
2934 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
2937 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2938 "Device operations enabled");
2939 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
2941 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2942 "Device operations disabled");
2943 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
2948 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
2950 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
2953 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
2954 "reg_class %u channel %u", reg_class, channel);
2955 p2p->cfg->reg_class = reg_class;
2956 p2p->cfg->channel = channel;
2962 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
2964 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
2965 if (postfix == NULL) {
2966 p2p->cfg->ssid_postfix_len = 0;
2969 if (len > sizeof(p2p->cfg->ssid_postfix))
2971 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
2972 p2p->cfg->ssid_postfix_len = len;
2977 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
2980 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
2981 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
2983 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
2988 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
2991 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
2994 os_memcpy(dev_addr, dev->p2p_device_addr, ETH_ALEN);
2999 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3001 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3002 if (is_zero_ether_addr(p2p->peer_filter))
3003 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3006 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3007 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3011 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3013 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
3014 enabled ? "enabled" : "disabled");
3015 if (p2p->cross_connect == enabled)
3017 p2p->cross_connect = enabled;
3018 /* TODO: may need to tear down any action group where we are GO(?) */
3022 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3024 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3027 if (dev->oper_freq <= 0)
3029 return dev->oper_freq;
3033 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
3035 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
3036 enabled ? "enabled" : "disabled");
3037 p2p->cfg->p2p_intra_bss = enabled;
3041 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
3043 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
3044 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));