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 u8 op_reg_class, op_channel;
816 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
817 &op_reg_class, &op_channel) < 0) {
818 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
819 "P2P: Unsupported frequency %u MHz",
823 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
825 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
826 "P2P: Frequency %u MHz (oper_class %u "
827 "channel %u) not allowed for P2P",
828 force_freq, op_reg_class, op_channel);
831 p2p->op_reg_class = op_reg_class;
832 p2p->op_channel = op_channel;
833 p2p->channels.reg_classes = 1;
834 p2p->channels.reg_class[0].channels = 1;
835 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
836 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
838 p2p->op_reg_class = p2p->cfg->op_reg_class;
839 p2p->op_channel = p2p->cfg->op_channel;
840 os_memcpy(&p2p->channels, &p2p->cfg->channels,
841 sizeof(struct p2p_channels));
843 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
844 "P2P: Own preference for operation channel: "
845 "Regulatory Class %u Channel %u%s",
846 p2p->op_reg_class, p2p->op_channel,
847 force_freq ? " (forced)" : "");
849 dev = p2p_get_device(p2p, peer_addr);
850 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
851 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
852 "P2P: Cannot connect to unknown P2P Device " MACSTR,
857 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
858 if (!(dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
859 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
860 "P2P: Cannot connect to P2P Device " MACSTR
861 " that is in a group and is not discoverable",
865 if (dev->oper_freq <= 0) {
866 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
867 "P2P: Cannot connect to P2P Device " MACSTR
868 " with incomplete information",
874 * First, try to connect directly. If the peer does not
875 * acknowledge frames, assume it is sleeping and use device
876 * discoverability via the GO at that point.
880 dev->flags &= ~P2P_DEV_NOT_YET_READY;
881 dev->flags &= ~P2P_DEV_USER_REJECTED;
882 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
883 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
884 dev->go_neg_req_sent = 0;
885 dev->go_state = UNKNOWN_GO;
886 if (persistent_group)
887 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
889 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
890 p2p->go_intent = go_intent;
891 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
893 if (p2p->state != P2P_IDLE)
896 dev->wps_method = wps_method;
897 dev->status = P2P_SC_SUCCESS;
900 dev->flags |= P2P_DEV_FORCE_FREQ;
902 dev->flags &= ~P2P_DEV_FORCE_FREQ;
904 if (p2p->p2p_scan_running) {
905 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
906 "P2P: p2p_scan running - delay connect send");
907 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
908 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
911 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
913 return p2p_connect_send(p2p, dev);
917 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
918 enum p2p_wps_method wps_method,
919 int go_intent, const u8 *own_interface_addr,
920 unsigned int force_freq, int persistent_group)
922 struct p2p_device *dev;
924 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
925 "P2P: Request to authorize group negotiation - peer=" MACSTR
926 " GO Intent=%d Intended Interface Address=" MACSTR
927 " wps_method=%d persistent_group=%d",
928 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
929 wps_method, persistent_group);
932 u8 op_reg_class, op_channel;
933 if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
934 &op_reg_class, &op_channel) < 0) {
935 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
936 "P2P: Unsupported frequency %u MHz",
940 if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
942 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
943 "P2P: Frequency %u MHz (oper_class %u "
944 "channel %u) not allowed for P2P",
945 force_freq, op_reg_class, op_channel);
948 p2p->op_reg_class = op_reg_class;
949 p2p->op_channel = op_channel;
950 p2p->channels.reg_classes = 1;
951 p2p->channels.reg_class[0].channels = 1;
952 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
953 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
955 p2p->op_reg_class = p2p->cfg->op_reg_class;
956 p2p->op_channel = p2p->cfg->op_channel;
957 os_memcpy(&p2p->channels, &p2p->cfg->channels,
958 sizeof(struct p2p_channels));
960 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
961 "P2P: Own preference for operation channel: "
962 "Regulatory Class %u Channel %u%s",
963 p2p->op_reg_class, p2p->op_channel,
964 force_freq ? " (forced)" : "");
966 dev = p2p_get_device(p2p, peer_addr);
968 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
969 "P2P: Cannot authorize unknown P2P Device " MACSTR,
974 dev->flags &= ~P2P_DEV_NOT_YET_READY;
975 dev->flags &= ~P2P_DEV_USER_REJECTED;
976 dev->go_neg_req_sent = 0;
977 dev->go_state = UNKNOWN_GO;
978 if (persistent_group)
979 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
981 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
982 p2p->go_intent = go_intent;
983 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
985 dev->wps_method = wps_method;
986 dev->status = P2P_SC_SUCCESS;
989 dev->flags |= P2P_DEV_FORCE_FREQ;
991 dev->flags &= ~P2P_DEV_FORCE_FREQ;
997 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
998 struct p2p_device *dev, struct p2p_message *msg)
1000 os_get_time(&dev->last_seen);
1002 if (msg->pri_dev_type)
1003 os_memcpy(dev->pri_dev_type, msg->pri_dev_type,
1004 sizeof(dev->pri_dev_type));
1005 os_memcpy(dev->device_name, msg->device_name,
1006 sizeof(dev->device_name));
1007 dev->config_methods = msg->config_methods ? msg->config_methods :
1008 msg->wps_config_methods;
1009 if (msg->capability) {
1010 dev->dev_capab = msg->capability[0];
1011 dev->group_capab = msg->capability[1];
1013 if (msg->listen_channel) {
1015 freq = p2p_channel_to_freq((char *) msg->listen_channel,
1016 msg->listen_channel[3],
1017 msg->listen_channel[4]);
1019 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1020 "P2P: Unknown peer Listen channel: "
1021 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1022 msg->listen_channel[0],
1023 msg->listen_channel[1],
1024 msg->listen_channel[2],
1025 msg->listen_channel[3],
1026 msg->listen_channel[4]);
1028 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
1029 "peer " MACSTR " Listen channel: %u -> %u MHz",
1030 MAC2STR(dev->p2p_device_addr),
1031 dev->listen_freq, freq);
1032 dev->listen_freq = freq;
1035 if (msg->ext_listen_timing) {
1036 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
1037 dev->ext_listen_interval =
1038 WPA_GET_LE16(msg->ext_listen_timing + 2);
1041 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1042 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1043 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1044 "P2P: Completed device entry based on data from "
1045 "GO Negotiation Request");
1047 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1048 "P2P: Created device entry based on GO Neg Req: "
1049 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1051 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1052 dev->group_capab, dev->device_name, dev->listen_freq);
1055 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1057 if (dev->flags & P2P_DEV_USER_REJECTED) {
1058 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1059 "P2P: Do not report rejected device");
1063 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, dev->p2p_device_addr,
1064 dev->pri_dev_type, dev->device_name,
1065 dev->config_methods, dev->dev_capab,
1070 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1072 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1073 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1074 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1075 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1076 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1080 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1082 p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
1083 p2p_random(params->passphrase, 8);
1088 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1090 struct p2p_go_neg_results res;
1091 int go = peer->go_state == LOCAL_GO;
1092 struct p2p_channels intersection;
1096 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1097 "P2P: GO Negotiation with " MACSTR " completed (%s will be "
1098 "GO)", MAC2STR(peer->p2p_device_addr),
1099 go ? "local end" : "peer");
1101 os_memset(&res, 0, sizeof(res));
1103 os_memcpy(res.peer_device_addr, peer->p2p_device_addr, ETH_ALEN);
1104 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1105 res.wps_method = peer->wps_method;
1106 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP)
1107 res.persistent_group = 1;
1110 /* Setup AP mode for WPS provisioning */
1111 res.freq = p2p_channel_to_freq(p2p->cfg->country,
1114 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1115 res.ssid_len = p2p->ssid_len;
1116 p2p_random(res.passphrase, 8);
1118 res.freq = peer->oper_freq;
1119 if (p2p->ssid_len) {
1120 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1121 res.ssid_len = p2p->ssid_len;
1125 p2p_channels_intersect(&p2p->channels, &peer->channels,
1128 for (i = 0; i < intersection.reg_classes; i++) {
1129 struct p2p_reg_class *c = &intersection.reg_class[i];
1130 if (freqs + 1 == P2P_MAX_CHANNELS)
1132 for (j = 0; j < c->channels; j++) {
1134 if (freqs + 1 == P2P_MAX_CHANNELS)
1136 freq = p2p_channel_to_freq(peer->country, c->reg_class,
1140 res.freq_list[freqs++] = freq;
1144 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1146 p2p_clear_timeout(p2p);
1147 peer->go_neg_req_sent = 0;
1148 peer->wps_method = WPS_NOT_READY;
1150 p2p_set_state(p2p, P2P_PROVISIONING);
1151 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1155 static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1156 const u8 *data, size_t len, int rx_freq)
1158 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1159 "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
1160 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1166 case P2P_GO_NEG_REQ:
1167 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1169 case P2P_GO_NEG_RESP:
1170 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1172 case P2P_GO_NEG_CONF:
1173 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1175 case P2P_INVITATION_REQ:
1176 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1179 case P2P_INVITATION_RESP:
1180 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1182 case P2P_PROV_DISC_REQ:
1183 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1185 case P2P_PROV_DISC_RESP:
1186 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1188 case P2P_DEV_DISC_REQ:
1189 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1191 case P2P_DEV_DISC_RESP:
1192 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1195 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1196 "P2P: Unsupported P2P Public Action frame type %d",
1203 void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1204 const u8 *bssid, const u8 *data, size_t len,
1211 case WLAN_PA_VENDOR_SPECIFIC:
1216 if (WPA_GET_BE24(data) != OUI_WFA)
1224 if (*data != P2P_OUI_TYPE)
1227 p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
1229 case WLAN_PA_GAS_INITIAL_REQ:
1230 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1232 case WLAN_PA_GAS_INITIAL_RESP:
1233 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1235 case WLAN_PA_GAS_COMEBACK_REQ:
1236 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1238 case WLAN_PA_GAS_COMEBACK_RESP:
1239 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
1245 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1246 const u8 *bssid, u8 category,
1247 const u8 *data, size_t len, int freq)
1249 if (category == WLAN_ACTION_PUBLIC) {
1250 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1254 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1260 if (WPA_GET_BE24(data) != OUI_WFA)
1265 if (*data != P2P_OUI_TYPE)
1270 /* P2P action frame */
1271 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1272 "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
1273 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1279 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1280 "P2P: Received P2P Action - Notice of Absence");
1283 case P2P_PRESENCE_REQ:
1284 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1286 case P2P_PRESENCE_RESP:
1287 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1289 case P2P_GO_DISC_REQ:
1290 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1293 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1294 "P2P: Received P2P Action - unknown type %u", data[0]);
1300 static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1302 struct p2p_data *p2p = eloop_ctx;
1303 if (p2p->go_neg_peer == NULL)
1305 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1306 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1307 p2p_connect_send(p2p, p2p->go_neg_peer);
1311 static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1313 struct p2p_data *p2p = eloop_ctx;
1314 if (p2p->invite_peer == NULL)
1316 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1317 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
1321 static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1322 const u8 *ie, size_t ie_len)
1324 struct p2p_message msg;
1325 struct p2p_device *dev;
1327 os_memset(&msg, 0, sizeof(msg));
1328 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1330 p2p_parse_free(&msg);
1331 return; /* not a P2P probe */
1334 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1335 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1337 /* The Probe Request is not part of P2P Device Discovery. It is
1338 * not known whether the source address of the frame is the P2P
1339 * Device Address or P2P Interface Address. Do not add a new
1340 * peer entry based on this frames.
1342 p2p_parse_free(&msg);
1346 dev = p2p_get_device(p2p, addr);
1348 if (dev->country[0] == 0 && msg.listen_channel)
1349 os_memcpy(dev->country, msg.listen_channel, 3);
1350 p2p_parse_free(&msg);
1351 return; /* already known */
1354 dev = p2p_create_device(p2p, addr);
1356 p2p_parse_free(&msg);
1360 os_get_time(&dev->last_seen);
1361 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1363 if (msg.capability) {
1364 dev->dev_capab = msg.capability[0];
1365 dev->group_capab = msg.capability[1];
1368 if (msg.listen_channel) {
1369 os_memcpy(dev->country, msg.listen_channel, 3);
1370 dev->listen_freq = p2p_channel_to_freq(dev->country,
1371 msg.listen_channel[3],
1372 msg.listen_channel[4]);
1375 os_memcpy(dev->device_name, msg.device_name, sizeof(dev->device_name));
1377 if (msg.wps_pri_dev_type)
1378 os_memcpy(dev->pri_dev_type, msg.wps_pri_dev_type,
1379 sizeof(dev->pri_dev_type));
1381 p2p_parse_free(&msg);
1383 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1384 "P2P: Created device entry based on Probe Req: " MACSTR
1385 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1386 MAC2STR(dev->p2p_device_addr), dev->dev_capab,
1387 dev->group_capab, dev->device_name, dev->listen_freq);
1391 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1393 struct p2p_message *msg)
1395 struct p2p_device *dev;
1397 dev = p2p_get_device(p2p, addr);
1399 os_get_time(&dev->last_seen);
1400 return dev; /* already known */
1403 dev = p2p_create_device(p2p, addr);
1407 p2p_add_dev_info(p2p, addr, dev, msg);
1413 static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1415 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1417 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1418 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1419 WPA_GET_BE16(&req_dev_type[6]) == 0)
1420 return 1; /* Category match with wildcard OUI/sub-category */
1425 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1426 size_t num_req_dev_type)
1429 for (i = 0; i < num_req_dev_type; i++) {
1430 if (dev_type_match(dev_type, req_dev_type[i]))
1438 * p2p_match_dev_type - Match local device type with requested type
1439 * @p2p: P2P module context from p2p_init()
1440 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1441 * Returns: 1 on match, 0 on mismatch
1443 * This function can be used to match the Requested Device Type attribute in
1444 * WPS IE with the local device types for deciding whether to reply to a Probe
1447 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1449 struct wps_parse_attr attr;
1452 if (wps_parse_msg(wps, &attr))
1453 return 1; /* assume no Requested Device Type attributes */
1455 if (attr.num_req_dev_type == 0)
1456 return 1; /* no Requested Device Type attributes -> match */
1458 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1459 attr.num_req_dev_type))
1460 return 1; /* Own Primary Device Type matches */
1462 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1463 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1465 attr.num_req_dev_type))
1466 return 1; /* Own Secondary Device Type matches */
1468 /* No matching device type found */
1473 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1478 buf = wpabuf_alloc(1000);
1482 /* TODO: add more info into WPS IE; maybe get from WPS module? */
1483 p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
1486 len = p2p_buf_add_ie_hdr(buf);
1487 p2p_buf_add_capability(buf, p2p->dev_capab, 0);
1488 if (p2p->ext_listen_interval)
1489 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1490 p2p->ext_listen_interval);
1491 p2p_buf_add_device_info(buf, p2p, NULL);
1492 p2p_buf_update_ie_hdr(buf, len);
1498 static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1501 struct ieee802_11_elems elems;
1503 struct ieee80211_mgmt *resp;
1507 if (!p2p->in_listen || !p2p->drv_in_listen) {
1508 /* not in Listen state - ignore Probe Request */
1512 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1514 /* Ignore invalid Probe Request frames */
1518 if (elems.p2p == NULL) {
1519 /* not a P2P probe - ignore it */
1523 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1524 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
1526 /* not using P2P Wildcard SSID - ignore */
1530 /* Check Requested Device Type match */
1531 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1532 if (wps && !p2p_match_dev_type(p2p, wps)) {
1534 /* No match with Requested Device Type */
1539 if (!p2p->cfg->send_probe_resp)
1540 return; /* Response generated elsewhere */
1542 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1543 "P2P: Reply to P2P Probe Request in Listen state");
1546 * We do not really have a specific BSS that this frame is advertising,
1547 * so build a frame that has some information in valid format. This is
1548 * really only used for discovery purposes, not to learn exact BSS
1551 ies = p2p_build_probe_resp_ies(p2p);
1555 buf = wpabuf_alloc(200 + wpabuf_len(ies));
1562 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
1564 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
1565 (WLAN_FC_STYPE_PROBE_RESP << 4));
1566 os_memcpy(resp->da, addr, ETH_ALEN);
1567 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
1568 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
1569 resp->u.probe_resp.beacon_int = host_to_le16(100);
1570 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1571 resp->u.probe_resp.capab_info =
1572 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
1573 WLAN_CAPABILITY_PRIVACY |
1574 WLAN_CAPABILITY_SHORT_SLOT_TIME);
1576 wpabuf_put_u8(buf, WLAN_EID_SSID);
1577 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
1578 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1580 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
1581 wpabuf_put_u8(buf, 8);
1582 wpabuf_put_u8(buf, (60 / 5) | 0x80);
1583 wpabuf_put_u8(buf, 90 / 5);
1584 wpabuf_put_u8(buf, (120 / 5) | 0x80);
1585 wpabuf_put_u8(buf, 180 / 5);
1586 wpabuf_put_u8(buf, (240 / 5) | 0x80);
1587 wpabuf_put_u8(buf, 360 / 5);
1588 wpabuf_put_u8(buf, 480 / 5);
1589 wpabuf_put_u8(buf, 540 / 5);
1591 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
1592 wpabuf_put_u8(buf, 1);
1593 wpabuf_put_u8(buf, p2p->cfg->channel);
1595 wpabuf_put_buf(buf, ies);
1598 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
1604 int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
1607 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
1609 p2p_reply_probe(p2p, addr, ie, ie_len);
1611 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
1613 os_memcmp(addr, p2p->go_neg_peer->p2p_device_addr, ETH_ALEN) == 0)
1615 /* Received a Probe Request from GO Negotiation peer */
1616 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1617 "P2P: Found GO Negotiation peer - try to start GO "
1618 "negotiation from timeout");
1619 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
1623 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
1625 os_memcmp(addr, p2p->invite_peer->p2p_device_addr, ETH_ALEN) == 0)
1627 /* Received a Probe Request from Invite peer */
1628 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1629 "P2P: Found Invite peer - try to start Invite from "
1631 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
1639 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
1640 u8 *buf, size_t len, struct wpabuf *p2p_ie)
1649 return 0; /* WLAN AP is not a P2P manager */
1652 * (Re)Association Request - P2P IE
1653 * P2P Capability attribute (shall be present)
1654 * P2P Interface attribute (present if concurrent device and
1655 * P2P Management is enabled)
1657 tmp = wpabuf_alloc(200);
1661 lpos = p2p_buf_add_ie_hdr(tmp);
1663 if (p2p->num_groups > 0) {
1664 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
1665 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1666 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
1668 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
1670 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
1671 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
1672 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
1673 p2p_buf_add_p2p_interface(tmp, p2p);
1674 p2p_buf_update_ie_hdr(tmp, lpos);
1676 tmplen = wpabuf_len(tmp);
1680 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1689 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1690 size_t len, int p2p_group, struct wpabuf *p2p_ie)
1694 struct p2p_device *peer;
1699 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
1702 * (Re)Association Request - P2P IE
1703 * P2P Capability attribute (shall be present)
1704 * Extended Listen Timing (may be present)
1705 * P2P Device Info attribute (shall be present)
1707 tmp = wpabuf_alloc(200);
1711 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
1713 lpos = p2p_buf_add_ie_hdr(tmp);
1714 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
1715 if (p2p->ext_listen_interval)
1716 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
1717 p2p->ext_listen_interval);
1718 p2p_buf_add_device_info(tmp, p2p, peer);
1719 p2p_buf_update_ie_hdr(tmp, lpos);
1721 tmplen = wpabuf_len(tmp);
1725 os_memcpy(buf, wpabuf_head(tmp), tmplen);
1734 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
1736 struct wpabuf *p2p_ie;
1739 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
1743 ret = p2p_attr_text(p2p_ie, buf, end);
1744 wpabuf_free(p2p_ie);
1749 static void p2p_clear_go_neg(struct p2p_data *p2p)
1751 p2p->go_neg_peer = NULL;
1752 p2p_clear_timeout(p2p);
1753 p2p_set_state(p2p, P2P_IDLE);
1757 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
1759 if (p2p->go_neg_peer == NULL) {
1760 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1761 "P2P: No pending Group Formation - "
1762 "ignore WPS registration success notification");
1763 return; /* No pending Group Formation */
1766 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
1768 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1769 "P2P: Ignore WPS registration success notification "
1770 "for " MACSTR " (GO Negotiation peer " MACSTR ")",
1772 MAC2STR(p2p->go_neg_peer->intended_addr));
1773 return; /* Ignore unexpected peer address */
1776 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1777 "P2P: Group Formation completed successfully with " MACSTR,
1780 p2p_clear_go_neg(p2p);
1784 void p2p_group_formation_failed(struct p2p_data *p2p)
1786 if (p2p->go_neg_peer == NULL) {
1787 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1788 "P2P: No pending Group Formation - "
1789 "ignore group formation failure notification");
1790 return; /* No pending Group Formation */
1793 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1794 "P2P: Group Formation failed with " MACSTR,
1795 MAC2STR(p2p->go_neg_peer->intended_addr));
1797 p2p_clear_go_neg(p2p);
1801 struct p2p_data * p2p_init(const struct p2p_config *cfg)
1803 struct p2p_data *p2p;
1805 if (cfg->max_peers < 1)
1808 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
1811 p2p->cfg = (struct p2p_config *) (p2p + 1);
1812 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
1814 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
1816 p2p->min_disc_int = 1;
1817 p2p->max_disc_int = 3;
1819 os_get_random(&p2p->next_tie_breaker, 1);
1820 p2p->next_tie_breaker &= 0x01;
1821 if (cfg->sd_request)
1822 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
1823 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
1824 if (cfg->concurrent_operations)
1825 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
1826 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
1828 dl_list_init(&p2p->devices);
1830 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
1831 p2p_expiration_timeout, p2p, NULL);
1837 void p2p_deinit(struct p2p_data *p2p)
1839 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
1840 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
1841 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1843 os_free(p2p->cfg->dev_name);
1844 os_free(p2p->groups);
1845 wpabuf_free(p2p->sd_resp);
1850 void p2p_flush(struct p2p_data *p2p)
1852 struct p2p_device *dev, *prev;
1853 p2p_clear_timeout(p2p);
1854 p2p_set_state(p2p, P2P_IDLE);
1855 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1856 p2p->go_neg_peer = NULL;
1857 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1858 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
1860 dl_list_del(&dev->list);
1861 p2p_device_free(p2p, dev);
1863 p2p_free_sd_queries(p2p);
1867 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
1869 os_free(p2p->cfg->dev_name);
1871 p2p->cfg->dev_name = os_strdup(dev_name);
1872 if (p2p->cfg->dev_name == NULL)
1875 p2p->cfg->dev_name = NULL;
1880 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
1882 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
1887 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
1888 size_t num_dev_types)
1890 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
1891 num_dev_types = P2P_SEC_DEVICE_TYPES;
1892 p2p->cfg->num_sec_dev_types = num_dev_types;
1893 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
1898 int p2p_set_country(struct p2p_data *p2p, const char *country)
1900 os_memcpy(p2p->cfg->country, country, 3);
1905 void p2p_continue_find(struct p2p_data *p2p)
1907 struct p2p_device *dev;
1908 p2p_set_state(p2p, P2P_SEARCH);
1909 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
1910 if (dev->flags & P2P_DEV_SD_SCHEDULE) {
1911 if (p2p_start_sd(p2p, dev) == 0)
1915 } else if (dev->req_config_methods) {
1916 if (p2p_send_prov_disc_req(p2p, dev, 0) == 0)
1921 p2p_listen_in_find(p2p);
1925 static void p2p_sd_cb(struct p2p_data *p2p, int success)
1927 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1928 "P2P: Service Discovery Query TX callback: success=%d",
1930 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1934 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
1935 p2p->sd_peer = NULL;
1937 p2p_continue_find(p2p);
1941 if (p2p->sd_peer == NULL) {
1942 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1943 "P2P: No SD peer entry known");
1944 p2p_continue_find(p2p);
1948 /* Wait for response from the peer */
1949 p2p_set_state(p2p, P2P_SD_DURING_FIND);
1950 p2p_set_timeout(p2p, 0, 200000);
1954 static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
1956 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1957 "P2P: Provision Discovery Request TX callback: success=%d",
1959 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
1962 if (p2p->state != P2P_IDLE)
1963 p2p_continue_find(p2p);
1967 /* Wait for response from the peer */
1968 if (p2p->state == P2P_SEARCH)
1969 p2p_set_state(p2p, P2P_PD_DURING_FIND);
1970 p2p_set_timeout(p2p, 0, 200000);
1974 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1975 int level, const u8 *ies, size_t ies_len)
1977 p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
1979 if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
1980 os_memcmp(p2p->go_neg_peer->p2p_device_addr, bssid, ETH_ALEN) == 0)
1982 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
1983 "P2P: Found GO Negotiation peer - try to start GO "
1985 p2p_connect_send(p2p, p2p->go_neg_peer);
1993 void p2p_scan_res_handled(struct p2p_data *p2p)
1995 if (!p2p->p2p_scan_running) {
1996 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
1997 "running, but scan results received");
1999 p2p->p2p_scan_running = 0;
2000 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2002 if (p2p_run_after_scan(p2p))
2004 if (p2p->state == P2P_SEARCH)
2005 p2p_continue_find(p2p);
2009 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies)
2011 u8 *len = p2p_buf_add_ie_hdr(ies);
2012 p2p_buf_add_capability(ies, p2p->dev_capab, 0);
2013 if (p2p->cfg->reg_class && p2p->cfg->channel)
2014 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2015 p2p->cfg->reg_class,
2017 if (p2p->ext_listen_interval)
2018 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2019 p2p->ext_listen_interval);
2020 /* TODO: p2p_buf_add_operating_channel() if GO */
2021 p2p_buf_update_ie_hdr(ies, len);
2025 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2027 return p2p_attr_text(p2p_ie, buf, end);
2031 static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2033 struct p2p_device *dev = p2p->go_neg_peer;
2035 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2036 "P2P: GO Negotiation Request TX callback: success=%d",
2040 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2041 "P2P: No pending GO Negotiation");
2046 dev->go_neg_req_sent++;
2047 if (dev->flags & P2P_DEV_USER_REJECTED) {
2048 p2p_set_state(p2p, P2P_IDLE);
2054 (dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
2055 !is_zero_ether_addr(dev->member_in_go_dev)) {
2056 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2057 "P2P: Peer " MACSTR " did not acknowledge request - "
2058 "try to use device discoverability through its GO",
2059 MAC2STR(dev->p2p_device_addr));
2060 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2061 p2p_send_dev_disc_req(p2p, dev);
2066 * Use P2P find, if needed, to find the other device from its listen
2069 p2p_set_state(p2p, P2P_CONNECT);
2070 p2p_set_timeout(p2p, 0, 100000);
2074 static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2076 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2077 "P2P: GO Negotiation Response TX callback: success=%d",
2079 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
2080 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2081 "P2P: Ignore TX callback event - GO Negotiation is "
2082 "not running anymore");
2085 p2p_set_state(p2p, P2P_CONNECT);
2086 p2p_set_timeout(p2p, 0, 100000);
2090 static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
2092 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2093 "P2P: GO Negotiation Response (failure) TX callback: "
2094 "success=%d", success);
2095 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2096 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2097 p2p->go_neg_peer->status);
2102 static void p2p_go_neg_conf_cb(struct p2p_data *p2p, int success)
2104 struct p2p_device *dev;
2106 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2107 "P2P: GO Negotiation Confirm TX callback: success=%d",
2109 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2112 * It looks like the TX status for GO Negotiation Confirm is
2113 * often showing failure even when the peer has actually
2114 * received the frame. Since the peer may change channels
2115 * immediately after having received the frame, we may not see
2116 * an Ack for retries, so just dropping a single frame may
2117 * trigger this. To allow the group formation to succeed if the
2118 * peer did indeed receive the frame, continue regardless of
2121 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2122 "P2P: Assume GO Negotiation Confirm TX was actually "
2123 "received by the peer even though Ack was not "
2127 dev = p2p->go_neg_peer;
2131 p2p_go_complete(p2p, dev);
2135 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
2136 const u8 *src, const u8 *bssid, int success)
2138 enum p2p_pending_action_state state;
2140 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2141 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
2142 " src=" MACSTR " bssid=" MACSTR " success=%d",
2143 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
2144 MAC2STR(bssid), success);
2145 state = p2p->pending_action_state;
2146 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2148 case P2P_NO_PENDING_ACTION:
2150 case P2P_PENDING_GO_NEG_REQUEST:
2151 p2p_go_neg_req_cb(p2p, success);
2153 case P2P_PENDING_GO_NEG_RESPONSE:
2154 p2p_go_neg_resp_cb(p2p, success);
2156 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
2157 p2p_go_neg_resp_failure_cb(p2p, success);
2159 case P2P_PENDING_GO_NEG_CONFIRM:
2160 p2p_go_neg_conf_cb(p2p, success);
2162 case P2P_PENDING_SD:
2163 p2p_sd_cb(p2p, success);
2165 case P2P_PENDING_PD:
2166 p2p_prov_disc_cb(p2p, success);
2168 case P2P_PENDING_INVITATION_REQUEST:
2169 p2p_invitation_req_cb(p2p, success);
2171 case P2P_PENDING_INVITATION_RESPONSE:
2172 p2p_invitation_resp_cb(p2p, success);
2174 case P2P_PENDING_DEV_DISC_REQUEST:
2175 p2p_dev_disc_req_cb(p2p, success);
2177 case P2P_PENDING_DEV_DISC_RESPONSE:
2178 p2p_dev_disc_resp_cb(p2p, success);
2180 case P2P_PENDING_GO_DISC_REQ:
2181 p2p_go_disc_req_cb(p2p, success);
2187 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
2188 unsigned int duration)
2190 if (freq == p2p->pending_client_disc_freq) {
2191 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2192 "P2P: Client discoverability remain-awake completed");
2193 p2p->pending_client_disc_freq = 0;
2197 if (freq != p2p->pending_listen_freq) {
2198 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2199 "P2P: Unexpected listen callback for freq=%u "
2200 "duration=%u (pending_listen_freq=%u)",
2201 freq, duration, p2p->pending_listen_freq);
2205 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2206 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2208 p2p->pending_listen_sec, p2p->pending_listen_usec,
2209 p2p->pending_listen_freq);
2211 p2p->drv_in_listen = 1;
2212 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
2214 * Add 20 msec extra wait to avoid race condition with driver
2215 * remain-on-channel end event, i.e., give driver more time to
2216 * complete the operation before our timeout expires.
2218 p2p_set_timeout(p2p, p2p->pending_listen_sec,
2219 p2p->pending_listen_usec + 20000);
2222 p2p->pending_listen_freq = 0;
2226 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
2228 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
2229 "state (freq=%u)", freq);
2230 p2p->drv_in_listen = 0;
2232 return 0; /* Internal timeout will trigger the next step */
2234 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
2235 p2p_set_state(p2p, P2P_CONNECT);
2236 p2p_connect_send(p2p, p2p->go_neg_peer);
2238 } else if (p2p->state == P2P_SEARCH) {
2247 static void p2p_timeout_connect(struct p2p_data *p2p)
2249 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2250 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
2251 p2p_listen_in_find(p2p);
2255 static void p2p_timeout_connect_listen(struct p2p_data *p2p)
2257 if (p2p->go_neg_peer) {
2258 if (p2p->drv_in_listen) {
2259 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
2260 "still in Listen state; wait for it to "
2264 p2p_set_state(p2p, P2P_CONNECT);
2265 p2p_connect_send(p2p, p2p->go_neg_peer);
2267 p2p_set_state(p2p, P2P_IDLE);
2271 static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
2274 * TODO: could remain constantly in Listen state for some time if there
2275 * are no other concurrent uses for the radio. For now, go to listen
2276 * state once per second to give other uses a chance to use the radio.
2278 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
2279 p2p_set_timeout(p2p, 1, 0);
2283 static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
2285 struct p2p_device *dev = p2p->go_neg_peer;
2288 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2289 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2294 if (dev->wait_count >= 120) {
2295 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2296 "P2P: Timeout on waiting peer to become ready for GO "
2298 p2p_go_neg_failed(p2p, dev, -1);
2302 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2303 "P2P: Go to Listen state while waiting for the peer to become "
2304 "ready for GO Negotiation");
2305 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
2306 p2p_listen_in_find(p2p);
2310 static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
2312 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2313 "P2P: Service Discovery Query timeout");
2315 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2316 p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
2317 p2p->sd_peer = NULL;
2319 p2p_continue_find(p2p);
2323 static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
2325 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2326 "P2P: Provision Discovery Request timeout");
2327 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2328 p2p_continue_find(p2p);
2332 static void p2p_timeout_invite(struct p2p_data *p2p)
2334 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2335 p2p_set_state(p2p, P2P_INVITE_LISTEN);
2336 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
2338 * Better remain on operating channel instead of listen channel
2339 * when running a group.
2341 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
2342 "active GO role - wait on operating channel");
2343 p2p_set_timeout(p2p, 0, 100000);
2346 p2p_listen_in_find(p2p);
2350 static void p2p_timeout_invite_listen(struct p2p_data *p2p)
2352 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
2353 p2p_set_state(p2p, P2P_INVITE);
2354 p2p_invite_send(p2p, p2p->invite_peer,
2355 p2p->invite_go_dev_addr);
2357 if (p2p->invite_peer) {
2358 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2359 "P2P: Invitation Request retry limit reached");
2360 if (p2p->cfg->invitation_result)
2361 p2p->cfg->invitation_result(
2362 p2p->cfg->cb_ctx, -1, NULL);
2364 p2p_set_state(p2p, P2P_IDLE);
2369 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
2371 struct p2p_data *p2p = eloop_ctx;
2373 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
2374 p2p_state_txt(p2p->state));
2378 switch (p2p->state) {
2385 p2p_timeout_connect(p2p);
2387 case P2P_CONNECT_LISTEN:
2388 p2p_timeout_connect_listen(p2p);
2392 case P2P_LISTEN_ONLY:
2393 if (p2p->ext_listen_only) {
2394 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2395 "P2P: Extended Listen Timing - Listen State "
2397 p2p->ext_listen_only = 0;
2398 p2p_set_state(p2p, P2P_IDLE);
2401 case P2P_WAIT_PEER_CONNECT:
2402 p2p_timeout_wait_peer_connect(p2p);
2404 case P2P_WAIT_PEER_IDLE:
2405 p2p_timeout_wait_peer_idle(p2p);
2407 case P2P_SD_DURING_FIND:
2408 p2p_timeout_sd_during_find(p2p);
2410 case P2P_PROVISIONING:
2412 case P2P_PD_DURING_FIND:
2413 p2p_timeout_prov_disc_during_find(p2p);
2416 p2p_timeout_invite(p2p);
2418 case P2P_INVITE_LISTEN:
2419 p2p_timeout_invite_listen(p2p);
2425 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
2427 struct p2p_device *dev;
2429 dev = p2p_get_device(p2p, peer_addr);
2430 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
2431 "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
2433 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
2434 " unknown", MAC2STR(peer_addr));
2437 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
2438 dev->flags |= P2P_DEV_USER_REJECTED;
2443 static const char * p2p_wps_method_text(enum p2p_wps_method method)
2450 case WPS_PIN_DISPLAY:
2452 case WPS_PIN_KEYPAD:
2462 static const char * p2p_go_state_text(enum p2p_go_state go_state)
2477 int p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next,
2478 char *buf, size_t buflen)
2480 struct p2p_device *dev;
2484 char devtype[WPS_DEV_TYPE_BUFSIZE];
2487 dev = p2p_get_device(p2p, addr);
2489 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
2492 dev = dl_list_first(&dev->list, struct p2p_device, list);
2493 if (&dev->list == &p2p->devices)
2503 res = os_snprintf(pos, end - pos, MACSTR "\n",
2504 MAC2STR(dev->p2p_device_addr));
2505 if (res < 0 || res >= end - pos)
2510 res = os_snprintf(pos, end - pos,
2515 "interface_addr=" MACSTR "\n"
2516 "member_in_go_dev=" MACSTR "\n"
2517 "member_in_go_iface=" MACSTR "\n"
2520 "config_methods=0x%x\n"
2522 "group_capab=0x%x\n"
2523 "go_neg_req_sent=%d\n"
2526 "intended_addr=" MACSTR "\n"
2529 "req_config_methods=0x%x\n"
2530 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
2533 "invitation_reqs=%u\n",
2534 (int) (now.sec - dev->last_seen.sec),
2537 p2p_wps_method_text(dev->wps_method),
2538 MAC2STR(dev->interface_addr),
2539 MAC2STR(dev->member_in_go_dev),
2540 MAC2STR(dev->member_in_go_iface),
2541 wps_dev_type_bin2str(dev->pri_dev_type,
2542 devtype, sizeof(devtype)),
2544 dev->config_methods,
2547 dev->go_neg_req_sent,
2548 p2p_go_state_text(dev->go_state),
2550 MAC2STR(dev->intended_addr),
2551 dev->country[0] ? dev->country[0] : '_',
2552 dev->country[1] ? dev->country[1] : '_',
2554 dev->req_config_methods,
2555 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
2556 "[PROBE_REQ_ONLY]" : "",
2557 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
2558 dev->flags & P2P_DEV_NOT_YET_READY ?
2559 "[NOT_YET_READY]" : "",
2560 dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
2561 dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
2563 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
2564 "[PD_PEER_DISPLAY]" : "",
2565 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
2566 "[PD_PEER_KEYPAD]" : "",
2567 dev->flags & P2P_DEV_USER_REJECTED ?
2568 "[USER_REJECTED]" : "",
2569 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
2570 "[PEER_WAITING_RESPONSE]" : "",
2571 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
2572 "[PREFER_PERSISTENT_GROUP]" : "",
2573 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
2574 "[WAIT_GO_NEG_RESPONSE]" : "",
2575 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
2576 "[WAIT_GO_NEG_CONFIRM]" : "",
2577 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
2578 "[GROUP_CLIENT_ONLY]" : "",
2579 dev->flags & P2P_DEV_FORCE_FREQ ?
2583 dev->invitation_reqs);
2584 if (res < 0 || res >= end - pos)
2588 if (dev->ext_listen_period) {
2589 res = os_snprintf(pos, end - pos,
2590 "ext_listen_period=%u\n"
2591 "ext_listen_interval=%u\n",
2592 dev->ext_listen_period,
2593 dev->ext_listen_interval);
2594 if (res < 0 || res >= end - pos)
2599 if (dev->oper_ssid_len) {
2600 res = os_snprintf(pos, end - pos,
2602 wpa_ssid_txt(dev->oper_ssid,
2603 dev->oper_ssid_len));
2604 if (res < 0 || res >= end - pos)
2613 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
2616 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2617 "discoverability enabled");
2618 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2620 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
2621 "discoverability disabled");
2622 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2627 static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
2628 u32 duration2, u32 interval2)
2631 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
2634 req = wpabuf_alloc(100);
2638 if (duration1 || interval1) {
2639 os_memset(&desc1, 0, sizeof(desc1));
2640 desc1.count_type = 1;
2641 desc1.duration = duration1;
2642 desc1.interval = interval1;
2645 if (duration2 || interval2) {
2646 os_memset(&desc2, 0, sizeof(desc2));
2647 desc2.count_type = 2;
2648 desc2.duration = duration2;
2649 desc2.interval = interval2;
2654 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
2655 len = p2p_buf_add_ie_hdr(req);
2656 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
2657 p2p_buf_update_ie_hdr(req, len);
2663 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
2664 const u8 *own_interface_addr, unsigned int freq,
2665 u32 duration1, u32 interval1, u32 duration2,
2670 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
2671 "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
2672 "int1=%u dur2=%u int2=%u",
2673 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
2674 freq, duration1, interval1, duration2, interval2);
2676 req = p2p_build_presence_req(duration1, interval1, duration2,
2681 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2682 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, go_interface_addr,
2685 wpabuf_head(req), wpabuf_len(req), 200) < 0)
2687 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2688 "P2P: Failed to send Action frame");
2696 static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
2697 size_t noa_len, u8 dialog_token)
2699 struct wpabuf *resp;
2702 resp = wpabuf_alloc(100 + noa_len);
2706 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
2707 len = p2p_buf_add_ie_hdr(resp);
2708 p2p_buf_add_status(resp, status);
2710 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
2711 wpabuf_put_le16(resp, noa_len);
2712 wpabuf_put_data(resp, noa, noa_len);
2714 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
2715 p2p_buf_update_ie_hdr(resp, len);
2721 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
2722 const u8 *sa, const u8 *data, size_t len,
2725 struct p2p_message msg;
2727 struct wpabuf *resp;
2729 struct p2p_group *group = NULL;
2734 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2735 "P2P: Received P2P Action - P2P Presence Request");
2737 for (g = 0; g < p2p->num_groups; g++) {
2738 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
2740 group = p2p->groups[g];
2744 if (group == NULL) {
2745 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2746 "P2P: Ignore P2P Presence Request for unknown group "
2747 MACSTR, MAC2STR(da));
2751 if (p2p_parse(data, len, &msg) < 0) {
2752 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2753 "P2P: Failed to parse P2P Presence Request");
2754 status = P2P_SC_FAIL_INVALID_PARAMS;
2759 if (msg.noa == NULL) {
2760 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2761 "P2P: No NoA attribute in P2P Presence Request");
2762 status = P2P_SC_FAIL_INVALID_PARAMS;
2766 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
2769 if (p2p->cfg->get_noa)
2770 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
2774 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
2775 noa_len > 0 ? noa_len : 0,
2778 p2p_parse_free(&msg);
2782 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2783 if (p2p->cfg->send_action(p2p->cfg->cb_ctx, rx_freq, sa, da, da,
2784 wpabuf_head(resp), wpabuf_len(resp), 200) <
2786 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2787 "P2P: Failed to send Action frame");
2793 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
2794 const u8 *sa, const u8 *data, size_t len)
2796 struct p2p_message msg;
2798 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2799 "P2P: Received P2P Action - P2P Presence Response");
2801 if (p2p_parse(data, len, &msg) < 0) {
2802 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2803 "P2P: Failed to parse P2P Presence Response");
2807 if (msg.status == NULL || msg.noa == NULL) {
2808 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2809 "P2P: No Status or NoA attribute in P2P Presence "
2811 p2p_parse_free(&msg);
2816 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2817 "P2P: P2P Presence Request was rejected: status %u",
2819 p2p_parse_free(&msg);
2823 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2824 "P2P: P2P Presence Request was accepted");
2825 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
2826 msg.noa, msg.noa_len);
2827 /* TODO: process NoA */
2828 p2p_parse_free(&msg);
2832 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
2834 struct p2p_data *p2p = eloop_ctx;
2836 if (p2p->ext_listen_interval) {
2837 /* Schedule next extended listen timeout */
2838 eloop_register_timeout(p2p->ext_listen_interval_sec,
2839 p2p->ext_listen_interval_usec,
2840 p2p_ext_listen_timeout, p2p, NULL);
2843 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
2845 * This should not really happen, but it looks like the Listen
2846 * command may fail is something else (e.g., a scan) was
2847 * running at an inconvenient time. As a workaround, allow new
2848 * Extended Listen operation to be started.
2850 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
2851 "Extended Listen operation had not been completed - "
2853 p2p->ext_listen_only = 0;
2854 p2p_set_state(p2p, P2P_IDLE);
2857 if (p2p->state != P2P_IDLE) {
2858 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
2859 "Listen timeout in active state (%s)",
2860 p2p_state_txt(p2p->state));
2864 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
2865 p2p->ext_listen_only = 1;
2866 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
2867 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
2868 "Listen state for Extended Listen Timing");
2869 p2p->ext_listen_only = 0;
2874 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
2875 unsigned int interval)
2877 if (period > 65535 || interval > 65535 || period > interval ||
2878 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
2879 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2880 "P2P: Invalid Extended Listen Timing request: "
2881 "period=%u interval=%u", period, interval);
2885 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2887 if (interval == 0) {
2888 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2889 "P2P: Disabling Extended Listen Timing");
2890 p2p->ext_listen_period = 0;
2891 p2p->ext_listen_interval = 0;
2895 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
2896 "P2P: Enabling Extended Listen Timing: period %u msec, "
2897 "interval %u msec", period, interval);
2898 p2p->ext_listen_period = period;
2899 p2p->ext_listen_interval = interval;
2900 p2p->ext_listen_interval_sec = interval / 1000;
2901 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
2903 eloop_register_timeout(p2p->ext_listen_interval_sec,
2904 p2p->ext_listen_interval_usec,
2905 p2p_ext_listen_timeout, p2p, NULL);
2911 void p2p_deauth_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: Deauthentication 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_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
2935 const u8 *ie, size_t ie_len)
2937 struct p2p_message msg;
2939 if (bssid == NULL || ie == NULL)
2942 os_memset(&msg, 0, sizeof(msg));
2943 if (p2p_parse_ies(ie, ie_len, &msg))
2945 if (msg.minor_reason_code == NULL)
2948 wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
2949 "P2P: Disassociation notification BSSID " MACSTR
2950 " reason_code=%u minor_reason_code=%u",
2951 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
2953 p2p_parse_free(&msg);
2957 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
2960 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2961 "Device operations enabled");
2962 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
2964 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
2965 "Device operations disabled");
2966 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
2971 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
2973 if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
2976 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
2977 "reg_class %u channel %u", reg_class, channel);
2978 p2p->cfg->reg_class = reg_class;
2979 p2p->cfg->channel = channel;
2985 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
2987 wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
2988 if (postfix == NULL) {
2989 p2p->cfg->ssid_postfix_len = 0;
2992 if (len > sizeof(p2p->cfg->ssid_postfix))
2994 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
2995 p2p->cfg->ssid_postfix_len = len;
3000 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
3003 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
3004 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
3006 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
3011 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
3014 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3017 os_memcpy(dev_addr, dev->p2p_device_addr, ETH_ALEN);
3022 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
3024 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
3025 if (is_zero_ether_addr(p2p->peer_filter))
3026 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
3029 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
3030 "filter for " MACSTR, MAC2STR(p2p->peer_filter));
3034 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
3036 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
3037 enabled ? "enabled" : "disabled");
3038 if (p2p->cross_connect == enabled)
3040 p2p->cross_connect = enabled;
3041 /* TODO: may need to tear down any action group where we are GO(?) */
3045 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
3047 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
3050 if (dev->oper_freq <= 0)
3052 return dev->oper_freq;
3056 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
3058 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
3059 enabled ? "enabled" : "disabled");
3060 p2p->cfg->p2p_intra_bss = enabled;