3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/p2p_hostapd.h"
24 #include "eapol_supp/eapol_supp_sm.h"
25 #include "rsn_supp/wpa.h"
26 #include "wpa_supplicant_i.h"
29 #include "config_ssid.h"
34 #include "offchannel.h"
35 #include "wps_supplicant.h"
36 #include "p2p_supplicant.h"
37 #include "wifi_display.h"
41 * How many times to try to scan to find the GO before giving up on join
44 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
46 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
48 #ifndef P2P_MAX_CLIENT_IDLE
50 * How many seconds to try to reconnect to the GO when connection in P2P client
53 #define P2P_MAX_CLIENT_IDLE 10
54 #endif /* P2P_MAX_CLIENT_IDLE */
56 #ifndef P2P_MAX_INITIAL_CONN_WAIT
58 * How many seconds to wait for initial 4-way handshake to get completed after
59 * WPS provisioning step.
61 #define P2P_MAX_INITIAL_CONN_WAIT 10
62 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
64 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
66 * How many seconds to wait for initial 4-way handshake to get completed after
67 * WPS provisioning step on the GO. This controls the extra time the P2P
68 * operation is considered to be in progress (e.g., to delay other scans) after
69 * WPS provisioning has been completed on the GO during group formation.
71 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
72 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
74 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
76 * How many seconds to wait for initial 4-way handshake to get completed after
77 * re-invocation of a persistent group on the GO when the client is expected
78 * to connect automatically (no user interaction).
80 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
81 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
83 #ifndef P2P_CONCURRENT_SEARCH_DELAY
84 #define P2P_CONCURRENT_SEARCH_DELAY 500
85 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
87 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
89 enum p2p_group_removal_reason {
90 P2P_GROUP_REMOVAL_UNKNOWN,
91 P2P_GROUP_REMOVAL_SILENT,
92 P2P_GROUP_REMOVAL_FORMATION_FAILED,
93 P2P_GROUP_REMOVAL_REQUESTED,
94 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
95 P2P_GROUP_REMOVAL_UNAVAILABLE,
96 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
97 P2P_GROUP_REMOVAL_PSK_FAILURE,
98 P2P_GROUP_REMOVAL_FREQ_CONFLICT
102 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
103 static struct wpa_supplicant *
104 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
106 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
107 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
108 const u8 *ssid, size_t ssid_len);
109 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
110 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
111 const u8 *dev_addr, enum p2p_wps_method wps_method,
112 int auto_join, const u8 *ssid, size_t ssid_len);
113 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
114 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
115 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
116 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
117 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
119 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
120 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
122 static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
126 * Get the number of concurrent channels that the HW can operate, but that are
127 * currently not in use by any of the wpa_supplicant interfaces.
129 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
134 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
138 num = get_shared_radio_freqs(wpa_s, freqs,
139 wpa_s->num_multichan_concurrent);
142 unused = wpa_s->num_multichan_concurrent - num;
143 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
149 * Get the frequencies that are currently in use by one or more of the virtual
150 * interfaces, and that are also valid for P2P operation.
152 static int wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
153 int *p2p_freqs, unsigned int len)
156 unsigned int num, i, j;
158 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
162 num = get_shared_radio_freqs(wpa_s, freqs,
163 wpa_s->num_multichan_concurrent);
165 os_memset(p2p_freqs, 0, sizeof(int) * len);
167 for (i = 0, j = 0; i < num && j < len; i++) {
168 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i]))
169 p2p_freqs[j++] = freqs[i];
174 dump_freq_array(wpa_s, "valid for P2P", p2p_freqs, j);
180 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
183 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
185 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
186 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
187 wpas_p2p_num_unused_channels(wpa_s) > 0) {
188 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
192 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
196 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
197 struct wpa_scan_results *scan_res)
201 if (wpa_s->p2p_scan_work) {
202 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
203 wpa_s->p2p_scan_work = NULL;
204 radio_work_done(work);
207 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
210 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
211 (int) scan_res->num);
213 for (i = 0; i < scan_res->num; i++) {
214 struct wpa_scan_res *bss = scan_res->res[i];
215 struct os_reltime time_tmp_age, entry_ts;
219 time_tmp_age.sec = bss->age / 1000;
220 time_tmp_age.usec = (bss->age % 1000) * 1000;
221 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
223 ies = (const u8 *) (bss + 1);
224 ies_len = bss->ie_len;
225 if (bss->beacon_ie_len > 0 &&
226 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
227 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
228 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
229 MACSTR, MAC2STR(bss->bssid));
231 ies_len = bss->beacon_ie_len;
235 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
236 bss->freq, &entry_ts, bss->level,
241 p2p_scan_res_handled(wpa_s->global->p2p);
245 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
247 struct wpa_supplicant *wpa_s = work->wpa_s;
248 struct wpa_driver_scan_params *params = work->ctx;
252 wpa_scan_free_params(params);
256 ret = wpa_drv_scan(wpa_s, params);
257 wpa_scan_free_params(params);
260 radio_work_done(work);
264 os_get_reltime(&wpa_s->scan_trigger_time);
265 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
266 wpa_s->own_scan_requested = 1;
267 wpa_s->p2p_scan_work = work;
271 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
272 unsigned int num_req_dev_types,
273 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
275 struct wpa_supplicant *wpa_s = ctx;
276 struct wpa_driver_scan_params *params = NULL;
277 struct wpabuf *wps_ie, *ies;
281 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
284 if (wpa_s->p2p_scan_work) {
285 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
289 params = os_zalloc(sizeof(*params));
293 /* P2P Wildcard SSID */
294 params->num_ssids = 1;
295 n = os_malloc(P2P_WILDCARD_SSID_LEN);
298 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
299 params->ssids[0].ssid = n;
300 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
302 wpa_s->wps->dev.p2p = 1;
303 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
304 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
305 num_req_dev_types, req_dev_types);
309 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
310 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
315 wpabuf_put_buf(ies, wps_ie);
318 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
320 params->p2p_probe = 1;
321 n = os_malloc(wpabuf_len(ies));
326 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
327 params->extra_ies = n;
328 params->extra_ies_len = wpabuf_len(ies);
332 case P2P_SCAN_SOCIAL:
333 params->freqs = os_malloc(4 * sizeof(int));
334 if (params->freqs == NULL)
336 params->freqs[0] = 2412;
337 params->freqs[1] = 2437;
338 params->freqs[2] = 2462;
339 params->freqs[3] = 0;
343 case P2P_SCAN_SOCIAL_PLUS_ONE:
344 params->freqs = os_malloc(5 * sizeof(int));
345 if (params->freqs == NULL)
347 params->freqs[0] = 2412;
348 params->freqs[1] = 2437;
349 params->freqs[2] = 2462;
350 params->freqs[3] = freq;
351 params->freqs[4] = 0;
355 radio_remove_unstarted_work(wpa_s, "p2p-scan");
356 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
362 wpa_scan_free_params(params);
367 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
369 switch (p2p_group_interface) {
370 case P2P_GROUP_INTERFACE_PENDING:
371 return WPA_IF_P2P_GROUP;
372 case P2P_GROUP_INTERFACE_GO:
373 return WPA_IF_P2P_GO;
374 case P2P_GROUP_INTERFACE_CLIENT:
375 return WPA_IF_P2P_CLIENT;
378 return WPA_IF_P2P_GROUP;
382 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
384 size_t ssid_len, int *go)
388 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
389 for (s = wpa_s->conf->ssid; s; s = s->next) {
390 if (s->disabled != 0 || !s->p2p_group ||
391 s->ssid_len != ssid_len ||
392 os_memcmp(ssid, s->ssid, ssid_len) != 0)
394 if (s->mode == WPAS_MODE_P2P_GO &&
395 s != wpa_s->current_ssid)
398 *go = s->mode == WPAS_MODE_P2P_GO;
407 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
408 enum p2p_group_removal_reason removal_reason)
410 struct wpa_ssid *ssid;
414 ssid = wpa_s->current_ssid;
417 * The current SSID was not known, but there may still be a
418 * pending P2P group interface waiting for provisioning or a
419 * P2P group that is trying to reconnect.
421 ssid = wpa_s->conf->ssid;
423 if (ssid->p2p_group && ssid->disabled != 2)
428 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
430 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
435 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
437 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
438 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
439 wpa_s->reassociate = 0;
440 wpa_s->disconnected = 1;
441 wpa_supplicant_deauthenticate(wpa_s,
442 WLAN_REASON_DEAUTH_LEAVING);
446 if (wpa_s->cross_connect_in_use) {
447 wpa_s->cross_connect_in_use = 0;
448 wpa_msg_global(wpa_s->parent, MSG_INFO,
449 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
450 wpa_s->ifname, wpa_s->cross_connect_uplink);
452 switch (removal_reason) {
453 case P2P_GROUP_REMOVAL_REQUESTED:
454 reason = " reason=REQUESTED";
456 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
457 reason = " reason=FORMATION_FAILED";
459 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
460 reason = " reason=IDLE";
462 case P2P_GROUP_REMOVAL_UNAVAILABLE:
463 reason = " reason=UNAVAILABLE";
465 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
466 reason = " reason=GO_ENDING_SESSION";
468 case P2P_GROUP_REMOVAL_PSK_FAILURE:
469 reason = " reason=PSK_FAILURE";
471 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
472 reason = " reason=FREQ_CONFLICT";
478 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
479 wpa_msg_global(wpa_s->parent, MSG_INFO,
480 P2P_EVENT_GROUP_REMOVED "%s %s%s",
481 wpa_s->ifname, gtype, reason);
484 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
485 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
486 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
487 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
488 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
489 wpa_s->parent, NULL) > 0) {
490 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
492 wpa_s->p2p_in_provisioning = 0;
496 * Make sure wait for the first client does not remain active after the
497 * group has been removed.
499 wpa_s->global->p2p_go_wait_client.sec = 0;
501 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
502 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
504 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
505 struct wpa_global *global;
507 enum wpa_driver_if_type type;
508 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
510 global = wpa_s->global;
511 ifname = os_strdup(wpa_s->ifname);
512 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
513 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
514 wpa_s = global->ifaces;
516 wpa_drv_if_remove(wpa_s, type, ifname);
521 if (!wpa_s->p2p_go_group_formation_completed) {
522 wpa_s->global->p2p_group_formation = NULL;
523 wpa_s->p2p_in_provisioning = 0;
526 wpa_s->show_group_started = 0;
527 os_free(wpa_s->go_params);
528 wpa_s->go_params = NULL;
530 wpa_s->waiting_presence_resp = 0;
532 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
533 if (ssid && (ssid->p2p_group ||
534 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
535 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
537 if (ssid == wpa_s->current_ssid) {
538 wpa_sm_set_config(wpa_s->wpa, NULL);
539 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
540 wpa_s->current_ssid = NULL;
543 * Networks objects created during any P2P activities are not
544 * exposed out as they might/will confuse certain non-P2P aware
545 * applications since these network objects won't behave like
548 * Likewise, we don't send out network removed signals for such
551 wpa_config_remove_network(wpa_s->conf, id);
552 wpa_supplicant_clear_status(wpa_s);
553 wpa_supplicant_cancel_sched_scan(wpa_s);
555 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
559 wpa_supplicant_ap_deinit(wpa_s);
561 wpa_drv_deinit_p2p_cli(wpa_s);
567 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
569 const u8 *ssid, size_t ssid_len)
577 if (wpa_s->go_params)
578 bssid = wpa_s->go_params->peer_interface_addr;
580 bssid = wpa_s->bssid;
582 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
584 u8 iface_addr[ETH_ALEN];
585 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
587 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
590 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
591 "group is persistent - BSS " MACSTR " not found",
596 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
598 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
601 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
602 "group is persistent - BSS " MACSTR
603 " did not include P2P IE", MAC2STR(bssid));
604 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
605 (u8 *) (bss + 1), bss->ie_len);
606 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
607 ((u8 *) bss + 1) + bss->ie_len,
612 group_capab = p2p_get_group_capab(p2p);
613 addr = p2p_get_go_dev_addr(p2p);
614 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
615 "group_capab=0x%x", group_capab);
617 os_memcpy(go_dev_addr, addr, ETH_ALEN);
618 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
621 os_memset(go_dev_addr, 0, ETH_ALEN);
624 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
625 "go_dev_addr=" MACSTR,
626 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
628 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
632 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
633 struct wpa_ssid *ssid,
634 const u8 *go_dev_addr)
639 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
640 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
641 for (s = wpa_s->conf->ssid; s; s = s->next) {
642 if (s->disabled == 2 &&
643 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
644 s->ssid_len == ssid->ssid_len &&
645 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
650 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
652 if (ssid->passphrase && !s->passphrase)
654 else if (ssid->passphrase && s->passphrase &&
655 os_strcmp(ssid->passphrase, s->passphrase) != 0)
658 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
661 s = wpa_config_add_network(wpa_s->conf);
666 * Instead of network_added we emit persistent_group_added
667 * notification. Also to keep the defense checks in
668 * persistent_group obj registration method, we set the
669 * relevant flags in s to designate it as a persistent group.
672 s->p2p_persistent_group = 1;
673 wpas_notify_persistent_group_added(wpa_s, s);
674 wpa_config_set_network_defaults(s);
678 s->p2p_persistent_group = 1;
681 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
682 s->mode = ssid->mode;
683 s->auth_alg = WPA_AUTH_ALG_OPEN;
684 s->key_mgmt = WPA_KEY_MGMT_PSK;
685 s->proto = WPA_PROTO_RSN;
686 s->pairwise_cipher = WPA_CIPHER_CCMP;
688 if (ssid->passphrase) {
689 os_free(s->passphrase);
690 s->passphrase = os_strdup(ssid->passphrase);
694 os_memcpy(s->psk, ssid->psk, 32);
696 if (s->passphrase && !s->psk_set)
697 wpa_config_update_psk(s);
698 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
700 s->ssid = os_malloc(ssid->ssid_len);
703 s->ssid_len = ssid->ssid_len;
704 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
706 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
707 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
708 wpa_s->global->add_psk = NULL;
712 #ifndef CONFIG_NO_CONFIG_WRITE
713 if (changed && wpa_s->conf->update_config &&
714 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
715 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
717 #endif /* CONFIG_NO_CONFIG_WRITE */
723 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
726 struct wpa_ssid *ssid, *s;
731 ssid = wpa_s->current_ssid;
732 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
733 !ssid->p2p_persistent_group)
736 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
737 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
740 if (s->ssid_len == ssid->ssid_len &&
741 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
748 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
749 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
753 if (i == s->num_p2p_clients - 1)
754 return; /* already the most recent entry */
756 /* move the entry to mark it most recent */
757 os_memmove(s->p2p_client_list + i * ETH_ALEN,
758 s->p2p_client_list + (i + 1) * ETH_ALEN,
759 (s->num_p2p_clients - i - 1) * ETH_ALEN);
760 os_memcpy(s->p2p_client_list +
761 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
766 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
767 n = os_realloc_array(s->p2p_client_list,
768 s->num_p2p_clients + 1, ETH_ALEN);
771 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
772 s->p2p_client_list = n;
773 s->num_p2p_clients++;
775 /* Not enough room for an additional entry - drop the oldest
777 os_memmove(s->p2p_client_list,
778 s->p2p_client_list + ETH_ALEN,
779 (s->num_p2p_clients - 1) * ETH_ALEN);
780 os_memcpy(s->p2p_client_list +
781 (s->num_p2p_clients - 1) * ETH_ALEN,
785 #ifndef CONFIG_NO_CONFIG_WRITE
786 if (wpa_s->parent->conf->update_config &&
787 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
788 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
789 #endif /* CONFIG_NO_CONFIG_WRITE */
793 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
796 struct wpa_ssid *ssid;
797 const char *ssid_txt;
800 u8 go_dev_addr[ETH_ALEN];
804 * This callback is likely called for the main interface. Update wpa_s
805 * to use the group interface if a new interface was created for the
808 if (wpa_s->global->p2p_group_formation)
809 wpa_s = wpa_s->global->p2p_group_formation;
810 if (wpa_s->p2p_go_group_formation_completed) {
811 wpa_s->global->p2p_group_formation = NULL;
812 wpa_s->p2p_in_provisioning = 0;
816 wpa_msg_global(wpa_s->parent, MSG_INFO,
817 P2P_EVENT_GROUP_FORMATION_FAILURE);
818 wpas_p2p_group_delete(wpa_s,
819 P2P_GROUP_REMOVAL_FORMATION_FAILED);
823 wpa_msg_global(wpa_s->parent, MSG_INFO,
824 P2P_EVENT_GROUP_FORMATION_SUCCESS);
826 ssid = wpa_s->current_ssid;
827 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
828 ssid->mode = WPAS_MODE_P2P_GO;
829 p2p_group_notif_formation_done(wpa_s->p2p_group);
830 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
835 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
836 client = ssid->mode == WPAS_MODE_INFRA;
837 if (ssid->mode == WPAS_MODE_P2P_GO) {
838 persistent = ssid->p2p_persistent_group;
839 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
842 persistent = wpas_p2p_persistent_group(wpa_s,
848 client = wpa_s->p2p_group_interface ==
849 P2P_GROUP_INTERFACE_CLIENT;
850 os_memset(go_dev_addr, 0, ETH_ALEN);
853 wpa_s->show_group_started = 0;
856 * Indicate event only after successfully completed 4-way
857 * handshake, i.e., when the interface is ready for data
860 wpa_s->show_group_started = 1;
861 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
863 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
864 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
865 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr="
867 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
868 MAC2STR(go_dev_addr),
869 persistent ? " [PERSISTENT]" : "");
870 wpas_p2p_cross_connect_setup(wpa_s);
871 wpas_p2p_set_group_idle_timeout(wpa_s);
873 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
874 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
875 "go_dev_addr=" MACSTR "%s",
876 wpa_s->ifname, ssid_txt,
877 ssid ? ssid->frequency : 0,
878 ssid && ssid->passphrase ? ssid->passphrase : "",
879 MAC2STR(go_dev_addr),
880 persistent ? " [PERSISTENT]" : "");
881 wpas_p2p_cross_connect_setup(wpa_s);
882 wpas_p2p_set_group_idle_timeout(wpa_s);
886 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
889 os_free(wpa_s->global->add_psk);
890 wpa_s->global->add_psk = NULL;
892 if (network_id < 0 && ssid)
893 network_id = ssid->id;
895 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
896 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
901 struct send_action_work {
907 unsigned int wait_time;
912 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
915 struct wpa_supplicant *wpa_s = eloop_ctx;
917 if (!wpa_s->p2p_send_action_work)
920 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
921 os_free(wpa_s->p2p_send_action_work->ctx);
922 radio_work_done(wpa_s->p2p_send_action_work);
923 wpa_s->p2p_send_action_work = NULL;
927 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
929 const u8 *dst, const u8 *src,
931 const u8 *data, size_t data_len,
932 enum offchannel_send_action_result
935 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
937 if (wpa_s->p2p_send_action_work) {
938 struct send_action_work *awork;
939 awork = wpa_s->p2p_send_action_work->ctx;
940 if (awork->wait_time == 0) {
942 radio_work_done(wpa_s->p2p_send_action_work);
943 wpa_s->p2p_send_action_work = NULL;
946 * In theory, this should not be needed, but number of
947 * places in the P2P code is still using non-zero wait
948 * time for the last Action frame in the sequence and
949 * some of these do not call send_action_done().
951 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
953 eloop_register_timeout(
954 0, awork->wait_time * 1000,
955 wpas_p2p_send_action_work_timeout,
960 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
964 case OFFCHANNEL_SEND_ACTION_SUCCESS:
965 res = P2P_SEND_ACTION_SUCCESS;
967 case OFFCHANNEL_SEND_ACTION_NO_ACK:
968 res = P2P_SEND_ACTION_NO_ACK;
970 case OFFCHANNEL_SEND_ACTION_FAILED:
971 res = P2P_SEND_ACTION_FAILED;
975 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
977 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
978 wpa_s->pending_pd_before_join &&
979 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
980 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
981 wpa_s->p2p_fallback_to_go_neg) {
982 wpa_s->pending_pd_before_join = 0;
983 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
984 "during p2p_connect-auto");
985 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
991 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
993 struct wpa_supplicant *wpa_s = work->wpa_s;
994 struct send_action_work *awork = work->ctx;
1001 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1002 awork->bssid, awork->buf, awork->len,
1004 wpas_p2p_send_action_tx_status, 1) < 0) {
1006 radio_work_done(work);
1009 wpa_s->p2p_send_action_work = work;
1013 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1014 unsigned int freq, const u8 *dst,
1015 const u8 *src, const u8 *bssid, const u8 *buf,
1016 size_t len, unsigned int wait_time)
1018 struct send_action_work *awork;
1020 if (wpa_s->p2p_send_action_work) {
1021 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1025 awork = os_zalloc(sizeof(*awork) + len);
1030 os_memcpy(awork->dst, dst, ETH_ALEN);
1031 os_memcpy(awork->src, src, ETH_ALEN);
1032 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1034 awork->wait_time = wait_time;
1035 os_memcpy(awork->buf, buf, len);
1037 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1038 wpas_send_action_cb, awork) < 0) {
1047 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1048 const u8 *src, const u8 *bssid, const u8 *buf,
1049 size_t len, unsigned int wait_time)
1051 struct wpa_supplicant *wpa_s = ctx;
1052 int listen_freq = -1, send_freq = -1;
1054 if (wpa_s->p2p_listen_work)
1055 listen_freq = wpa_s->p2p_listen_work->freq;
1056 if (wpa_s->p2p_send_action_work)
1057 send_freq = wpa_s->p2p_send_action_work->freq;
1058 if (listen_freq != (int) freq && send_freq != (int) freq) {
1059 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1060 listen_freq, send_freq);
1061 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1065 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1066 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1068 wpas_p2p_send_action_tx_status, 1);
1072 static void wpas_send_action_done(void *ctx)
1074 struct wpa_supplicant *wpa_s = ctx;
1076 if (wpa_s->p2p_send_action_work) {
1077 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1079 os_free(wpa_s->p2p_send_action_work->ctx);
1080 radio_work_done(wpa_s->p2p_send_action_work);
1081 wpa_s->p2p_send_action_work = NULL;
1084 offchannel_send_action_done(wpa_s);
1088 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1089 struct p2p_go_neg_results *params)
1091 if (wpa_s->go_params == NULL) {
1092 wpa_s->go_params = os_malloc(sizeof(*params));
1093 if (wpa_s->go_params == NULL)
1096 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1101 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1102 struct p2p_go_neg_results *res)
1104 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
1105 MAC2STR(res->peer_interface_addr));
1106 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1107 res->ssid, res->ssid_len);
1108 wpa_supplicant_ap_deinit(wpa_s);
1109 wpas_copy_go_neg_results(wpa_s, res);
1110 if (res->wps_method == WPS_PBC)
1111 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1113 u16 dev_pw_id = DEV_PW_DEFAULT;
1114 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1115 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1116 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1117 wpa_s->p2p_pin, 1, dev_pw_id);
1122 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1123 struct wpa_ssid *ssid)
1125 struct wpa_ssid *persistent;
1126 struct psk_list_entry *psk;
1127 struct hostapd_data *hapd;
1129 if (!wpa_s->ap_iface)
1132 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1134 if (persistent == NULL)
1137 hapd = wpa_s->ap_iface->bss[0];
1139 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1141 struct hostapd_wpa_psk *hpsk;
1143 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1145 MAC2STR(psk->addr), psk->p2p);
1146 hpsk = os_zalloc(sizeof(*hpsk));
1149 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1151 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1153 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1154 hpsk->next = hapd->conf->ssid.wpa_psk;
1155 hapd->conf->ssid.wpa_psk = hpsk;
1160 static void p2p_go_configured(void *ctx, void *data)
1162 struct wpa_supplicant *wpa_s = ctx;
1163 struct p2p_go_neg_results *params = data;
1164 struct wpa_ssid *ssid;
1165 int network_id = -1;
1167 ssid = wpa_s->current_ssid;
1168 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1169 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1170 if (wpa_s->global->p2p_group_formation == wpa_s)
1171 wpa_s->global->p2p_group_formation = NULL;
1172 if (os_strlen(params->passphrase) > 0) {
1173 wpa_msg_global(wpa_s->parent, MSG_INFO,
1174 P2P_EVENT_GROUP_STARTED
1175 "%s GO ssid=\"%s\" freq=%d "
1176 "passphrase=\"%s\" go_dev_addr=" MACSTR
1177 "%s", wpa_s->ifname,
1178 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1179 ssid->frequency, params->passphrase,
1180 MAC2STR(wpa_s->global->p2p_dev_addr),
1181 params->persistent_group ?
1182 " [PERSISTENT]" : "");
1185 wpa_snprintf_hex(psk, sizeof(psk), params->psk,
1186 sizeof(params->psk));
1187 wpa_msg_global(wpa_s->parent, MSG_INFO,
1188 P2P_EVENT_GROUP_STARTED
1189 "%s GO ssid=\"%s\" freq=%d psk=%s "
1190 "go_dev_addr=" MACSTR "%s",
1192 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1193 ssid->frequency, psk,
1194 MAC2STR(wpa_s->global->p2p_dev_addr),
1195 params->persistent_group ?
1196 " [PERSISTENT]" : "");
1199 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1200 if (params->persistent_group) {
1201 network_id = wpas_p2p_store_persistent_group(
1202 wpa_s->parent, ssid,
1203 wpa_s->global->p2p_dev_addr);
1204 wpas_p2p_add_psk_list(wpa_s, ssid);
1207 network_id = ssid->id;
1208 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1209 wpas_p2p_cross_connect_setup(wpa_s);
1210 wpas_p2p_set_group_idle_timeout(wpa_s);
1212 if (wpa_s->p2p_first_connection_timeout) {
1213 wpa_dbg(wpa_s, MSG_DEBUG,
1214 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1215 wpa_s->p2p_first_connection_timeout);
1216 wpa_s->p2p_go_group_formation_completed = 0;
1217 wpa_s->global->p2p_group_formation = wpa_s;
1218 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1219 wpa_s->parent, NULL);
1220 eloop_register_timeout(
1221 wpa_s->p2p_first_connection_timeout, 0,
1222 wpas_p2p_group_formation_timeout,
1223 wpa_s->parent, NULL);
1229 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1230 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1231 params->peer_interface_addr)) {
1232 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1236 if (params->wps_method == WPS_PBC)
1237 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1238 params->peer_device_addr);
1239 else if (wpa_s->p2p_pin[0])
1240 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1241 wpa_s->p2p_pin, NULL, 0, 0);
1242 os_free(wpa_s->go_params);
1243 wpa_s->go_params = NULL;
1247 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1248 struct p2p_go_neg_results *params,
1249 int group_formation)
1251 struct wpa_ssid *ssid;
1253 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1254 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1255 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1260 ssid = wpa_config_add_network(wpa_s->conf);
1262 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1266 wpa_s->show_group_started = 0;
1268 wpa_config_set_network_defaults(ssid);
1269 ssid->temporary = 1;
1270 ssid->p2p_group = 1;
1271 ssid->p2p_persistent_group = params->persistent_group;
1272 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1274 ssid->frequency = params->freq;
1275 ssid->ht40 = params->ht40;
1276 ssid->vht = params->vht;
1277 ssid->ssid = os_zalloc(params->ssid_len + 1);
1279 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1280 ssid->ssid_len = params->ssid_len;
1282 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1283 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1284 ssid->proto = WPA_PROTO_RSN;
1285 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1286 if (os_strlen(params->passphrase) > 0) {
1287 ssid->passphrase = os_strdup(params->passphrase);
1288 if (ssid->passphrase == NULL) {
1289 wpa_msg_global(wpa_s, MSG_ERROR,
1290 "P2P: Failed to copy passphrase for GO");
1291 wpa_config_remove_network(wpa_s->conf, ssid->id);
1295 ssid->passphrase = NULL;
1296 ssid->psk_set = params->psk_set;
1298 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1299 else if (ssid->passphrase)
1300 wpa_config_update_psk(ssid);
1301 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1303 wpa_s->ap_configured_cb = p2p_go_configured;
1304 wpa_s->ap_configured_cb_ctx = wpa_s;
1305 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1306 wpa_s->connect_without_scan = ssid;
1307 wpa_s->reassociate = 1;
1308 wpa_s->disconnected = 0;
1309 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1311 wpa_supplicant_req_scan(wpa_s, 0, 0);
1315 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1316 const struct wpa_supplicant *src)
1318 struct wpa_config *d;
1319 const struct wpa_config *s;
1324 #define C(n) if (s->n) d->n = os_strdup(s->n)
1333 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1334 os_memcpy(d->sec_device_type, s->sec_device_type,
1335 sizeof(d->sec_device_type));
1336 d->num_sec_device_types = s->num_sec_device_types;
1338 d->p2p_group_idle = s->p2p_group_idle;
1339 d->p2p_intra_bss = s->p2p_intra_bss;
1340 d->persistent_reconnect = s->persistent_reconnect;
1341 d->max_num_sta = s->max_num_sta;
1342 d->pbc_in_m1 = s->pbc_in_m1;
1343 d->ignore_old_scan_res = s->ignore_old_scan_res;
1344 d->beacon_int = s->beacon_int;
1345 d->dtim_period = s->dtim_period;
1346 d->disassoc_low_ack = s->disassoc_low_ack;
1347 d->disable_scan_offload = s->disable_scan_offload;
1351 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1352 char *ifname, size_t len)
1354 char *ifname_ptr = wpa_s->ifname;
1356 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1357 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1358 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1361 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1362 if (os_strlen(ifname) >= IFNAMSIZ &&
1363 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1364 /* Try to avoid going over the IFNAMSIZ length limit */
1365 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1370 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1371 enum wpa_driver_if_type type)
1373 char ifname[120], force_ifname[120];
1375 if (wpa_s->pending_interface_name[0]) {
1376 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1377 "- skip creation of a new one");
1378 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1379 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1380 "unknown?! ifname='%s'",
1381 wpa_s->pending_interface_name);
1387 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1388 force_ifname[0] = '\0';
1390 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1392 wpa_s->p2p_group_idx++;
1394 wpa_s->pending_interface_type = type;
1395 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1396 wpa_s->pending_interface_addr, NULL) < 0) {
1397 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1402 if (force_ifname[0]) {
1403 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1405 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1406 sizeof(wpa_s->pending_interface_name));
1408 os_strlcpy(wpa_s->pending_interface_name, ifname,
1409 sizeof(wpa_s->pending_interface_name));
1410 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1411 MACSTR, wpa_s->pending_interface_name,
1412 MAC2STR(wpa_s->pending_interface_addr));
1418 static void wpas_p2p_remove_pending_group_interface(
1419 struct wpa_supplicant *wpa_s)
1421 if (!wpa_s->pending_interface_name[0] ||
1422 is_zero_ether_addr(wpa_s->pending_interface_addr))
1423 return; /* No pending virtual interface */
1425 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1426 wpa_s->pending_interface_name);
1427 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1428 wpa_s->pending_interface_name);
1429 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1430 wpa_s->pending_interface_name[0] = '\0';
1434 static struct wpa_supplicant *
1435 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1437 struct wpa_interface iface;
1438 struct wpa_supplicant *group_wpa_s;
1440 if (!wpa_s->pending_interface_name[0]) {
1441 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1442 if (!wpas_p2p_create_iface(wpa_s))
1445 * Something has forced us to remove the pending interface; try
1446 * to create a new one and hope for the best that we will get
1447 * the same local address.
1449 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1450 WPA_IF_P2P_CLIENT) < 0)
1454 os_memset(&iface, 0, sizeof(iface));
1455 iface.ifname = wpa_s->pending_interface_name;
1456 iface.driver = wpa_s->driver->name;
1457 if (wpa_s->conf->ctrl_interface == NULL &&
1458 wpa_s->parent != wpa_s &&
1460 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1461 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1463 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1464 iface.driver_param = wpa_s->conf->driver_param;
1465 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1466 if (group_wpa_s == NULL) {
1467 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1468 "wpa_supplicant interface");
1471 wpa_s->pending_interface_name[0] = '\0';
1472 group_wpa_s->parent = wpa_s;
1473 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1474 P2P_GROUP_INTERFACE_CLIENT;
1475 wpa_s->global->p2p_group_formation = group_wpa_s;
1477 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1483 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1486 struct wpa_supplicant *wpa_s = eloop_ctx;
1487 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1488 wpas_p2p_group_formation_failed(wpa_s);
1492 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1494 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1495 wpa_s->parent, NULL);
1496 if (wpa_s->global->p2p)
1497 p2p_group_formation_failed(wpa_s->global->p2p);
1498 wpas_group_formation_completed(wpa_s, 0);
1502 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
1504 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
1505 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1506 wpa_s->parent, NULL);
1507 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1508 wpa_s->parent, NULL);
1509 wpa_s->global->p2p_fail_on_wps_complete = 0;
1513 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1515 if (wpa_s->global->p2p_group_formation != wpa_s)
1517 /* Speed up group formation timeout since this cannot succeed */
1518 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1519 wpa_s->parent, NULL);
1520 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1521 wpa_s->parent, NULL);
1525 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1527 struct wpa_supplicant *wpa_s = ctx;
1529 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1530 wpa_drv_cancel_remain_on_channel(wpa_s);
1531 wpa_s->off_channel_freq = 0;
1532 wpa_s->roc_waiting_drv_freq = 0;
1536 wpa_msg_global(wpa_s, MSG_INFO,
1537 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1539 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1540 wpas_p2p_remove_pending_group_interface(wpa_s);
1544 if (wpa_s->p2p_go_ht40)
1546 if (wpa_s->p2p_go_vht)
1549 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1550 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1552 res->role_go ? "GO" : "client", res->freq, res->ht40,
1553 MAC2STR(res->peer_device_addr),
1554 MAC2STR(res->peer_interface_addr),
1555 p2p_wps_method_text(res->wps_method));
1556 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1558 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1559 struct wpa_ssid *ssid;
1560 ssid = wpa_config_get_network(wpa_s->conf,
1561 wpa_s->p2p_persistent_id);
1562 if (ssid && ssid->disabled == 2 &&
1563 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1564 size_t len = os_strlen(ssid->passphrase);
1565 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1566 "on requested persistent group");
1567 os_memcpy(res->passphrase, ssid->passphrase, len);
1568 res->passphrase[len] = '\0';
1572 if (wpa_s->create_p2p_iface) {
1573 struct wpa_supplicant *group_wpa_s =
1574 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1575 if (group_wpa_s == NULL) {
1576 wpas_p2p_remove_pending_group_interface(wpa_s);
1579 if (group_wpa_s != wpa_s) {
1580 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1581 sizeof(group_wpa_s->p2p_pin));
1582 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1584 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1585 wpa_s->pending_interface_name[0] = '\0';
1586 group_wpa_s->p2p_in_provisioning = 1;
1589 wpas_start_wps_go(group_wpa_s, res, 1);
1591 wpas_start_wps_enrollee(group_wpa_s, res);
1593 wpa_s->p2p_in_provisioning = 1;
1594 wpa_s->global->p2p_group_formation = wpa_s;
1597 wpas_start_wps_go(wpa_s, res, 1);
1599 wpas_start_wps_enrollee(ctx, res);
1602 wpa_s->p2p_long_listen = 0;
1603 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1605 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1606 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1607 (res->peer_config_timeout % 100) * 10000,
1608 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1612 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1614 struct wpa_supplicant *wpa_s = ctx;
1615 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1616 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1618 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1622 static void wpas_dev_found(void *ctx, const u8 *addr,
1623 const struct p2p_peer_info *info,
1626 #ifndef CONFIG_NO_STDOUT_DEBUG
1627 struct wpa_supplicant *wpa_s = ctx;
1628 char devtype[WPS_DEV_TYPE_BUFSIZE];
1629 char *wfd_dev_info_hex = NULL;
1631 #ifdef CONFIG_WIFI_DISPLAY
1632 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1633 WFD_SUBELEM_DEVICE_INFO);
1634 #endif /* CONFIG_WIFI_DISPLAY */
1636 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1637 " p2p_dev_addr=" MACSTR
1638 " pri_dev_type=%s name='%s' config_methods=0x%x "
1639 "dev_capab=0x%x group_capab=0x%x%s%s",
1640 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1641 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1643 info->device_name, info->config_methods,
1644 info->dev_capab, info->group_capab,
1645 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
1646 wfd_dev_info_hex ? wfd_dev_info_hex : "");
1647 #endif /* CONFIG_NO_STDOUT_DEBUG */
1649 os_free(wfd_dev_info_hex);
1651 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1655 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1657 struct wpa_supplicant *wpa_s = ctx;
1659 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1660 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1662 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1666 static void wpas_find_stopped(void *ctx)
1668 struct wpa_supplicant *wpa_s = ctx;
1669 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
1673 struct wpas_p2p_listen_work {
1675 unsigned int duration;
1676 struct wpabuf *probe_resp_ie;
1680 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
1684 wpabuf_free(lwork->probe_resp_ie);
1689 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
1691 struct wpas_p2p_listen_work *lwork;
1693 if (!wpa_s->p2p_listen_work)
1696 lwork = wpa_s->p2p_listen_work->ctx;
1697 wpas_p2p_listen_work_free(lwork);
1698 radio_work_done(wpa_s->p2p_listen_work);
1699 wpa_s->p2p_listen_work = NULL;
1703 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
1705 struct wpa_supplicant *wpa_s = work->wpa_s;
1706 struct wpas_p2p_listen_work *lwork = work->ctx;
1709 wpas_p2p_listen_work_free(lwork);
1713 wpa_s->p2p_listen_work = work;
1715 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
1717 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1718 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1719 "report received Probe Request frames");
1720 wpas_p2p_listen_work_done(wpa_s);
1724 wpa_s->pending_listen_freq = lwork->freq;
1725 wpa_s->pending_listen_duration = lwork->duration;
1727 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, lwork->duration) < 0)
1729 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1730 "to remain on channel (%u MHz) for Listen "
1731 "state", lwork->freq);
1732 wpas_p2p_listen_work_done(wpa_s);
1733 wpa_s->pending_listen_freq = 0;
1736 wpa_s->off_channel_freq = 0;
1737 wpa_s->roc_waiting_drv_freq = lwork->freq;
1741 static int wpas_start_listen(void *ctx, unsigned int freq,
1742 unsigned int duration,
1743 const struct wpabuf *probe_resp_ie)
1745 struct wpa_supplicant *wpa_s = ctx;
1746 struct wpas_p2p_listen_work *lwork;
1748 if (wpa_s->p2p_listen_work) {
1749 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
1753 lwork = os_zalloc(sizeof(*lwork));
1757 lwork->duration = duration;
1758 if (probe_resp_ie) {
1759 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
1760 if (lwork->probe_resp_ie == NULL) {
1761 wpas_p2p_listen_work_free(lwork);
1766 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
1768 wpas_p2p_listen_work_free(lwork);
1776 static void wpas_stop_listen(void *ctx)
1778 struct wpa_supplicant *wpa_s = ctx;
1779 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1780 wpa_drv_cancel_remain_on_channel(wpa_s);
1781 wpa_s->off_channel_freq = 0;
1782 wpa_s->roc_waiting_drv_freq = 0;
1784 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1785 wpa_drv_probe_req_report(wpa_s, 0);
1786 wpas_p2p_listen_work_done(wpa_s);
1790 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1792 struct wpa_supplicant *wpa_s = ctx;
1793 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1798 * DNS Header section is used only to calculate compression pointers, so the
1799 * contents of this data does not matter, but the length needs to be reserved
1800 * in the virtual packet.
1802 #define DNS_HEADER_LEN 12
1805 * 27-octet in-memory packet from P2P specification containing two implied
1806 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1808 #define P2P_SD_IN_MEMORY_LEN 27
1810 static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1811 u8 **spos, const u8 *end)
1813 while (*spos < end) {
1814 u8 val = ((*spos)[0] & 0xc0) >> 6;
1817 if (val == 1 || val == 2) {
1818 /* These are reserved values in RFC 1035 */
1819 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1820 "sequence starting with 0x%x", val);
1829 if (*spos + 2 > end) {
1830 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1831 "DNS offset field");
1835 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1836 if (offset >= *spos - start) {
1837 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1838 "pointer offset %u", offset);
1843 spos_tmp = start + offset;
1844 return p2p_sd_dns_uncompress_label(upos, uend, start,
1850 len = (*spos)[0] & 0x3f;
1855 if (*spos + len > end) {
1856 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1857 "sequence - no room for label with length "
1862 if (*upos + len + 2 > uend)
1865 os_memcpy(*upos, *spos, len);
1877 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1878 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1879 * not large enough */
1880 static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1881 size_t msg_len, size_t offset)
1883 /* 27-octet in-memory packet from P2P specification */
1884 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1885 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1886 u8 *tmp, *end, *spos;
1892 if (offset > msg_len)
1895 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1898 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1899 end = spos + msg_len;
1902 os_memset(tmp, 0, DNS_HEADER_LEN);
1903 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1904 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1907 uend = buf + buf_len;
1909 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1918 } else if (upos[-1] == '.')
1926 static struct p2p_srv_bonjour *
1927 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1928 const struct wpabuf *query)
1930 struct p2p_srv_bonjour *bsrv;
1933 len = wpabuf_len(query);
1934 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1935 struct p2p_srv_bonjour, list) {
1936 if (len == wpabuf_len(bsrv->query) &&
1937 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1945 static struct p2p_srv_upnp *
1946 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1947 const char *service)
1949 struct p2p_srv_upnp *usrv;
1951 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1952 struct p2p_srv_upnp, list) {
1953 if (version == usrv->version &&
1954 os_strcmp(service, usrv->service) == 0)
1961 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1966 if (wpabuf_tailroom(resp) < 5)
1969 /* Length (to be filled) */
1970 len_pos = wpabuf_put(resp, 2);
1971 wpabuf_put_u8(resp, srv_proto);
1972 wpabuf_put_u8(resp, srv_trans_id);
1974 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1975 /* Response Data: empty */
1976 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1980 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1981 struct wpabuf *resp, u8 srv_trans_id)
1983 struct p2p_srv_bonjour *bsrv;
1986 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1988 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1989 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1993 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1994 struct p2p_srv_bonjour, list) {
1995 if (wpabuf_tailroom(resp) <
1996 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1998 /* Length (to be filled) */
1999 len_pos = wpabuf_put(resp, 2);
2000 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2001 wpabuf_put_u8(resp, srv_trans_id);
2003 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2004 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2005 wpabuf_head(bsrv->resp),
2006 wpabuf_len(bsrv->resp));
2008 wpabuf_put_buf(resp, bsrv->query); /* Key */
2009 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2010 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2016 static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2019 char str_rx[256], str_srv[256];
2021 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2022 return 0; /* Too short to include DNS Type and Version */
2023 if (os_memcmp(query + query_len - 3,
2024 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2026 return 0; /* Mismatch in DNS Type or Version */
2027 if (query_len == wpabuf_len(bsrv->query) &&
2028 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2029 return 1; /* Binary match */
2031 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2033 return 0; /* Failed to uncompress query */
2034 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2035 wpabuf_head(bsrv->query),
2036 wpabuf_len(bsrv->query) - 3, 0))
2037 return 0; /* Failed to uncompress service */
2039 return os_strcmp(str_rx, str_srv) == 0;
2043 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2044 struct wpabuf *resp, u8 srv_trans_id,
2045 const u8 *query, size_t query_len)
2047 struct p2p_srv_bonjour *bsrv;
2051 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2053 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2054 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2055 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2060 if (query_len == 0) {
2061 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2065 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2066 struct p2p_srv_bonjour, list) {
2067 if (!match_bonjour_query(bsrv, query, query_len))
2070 if (wpabuf_tailroom(resp) <
2071 5 + query_len + wpabuf_len(bsrv->resp))
2076 /* Length (to be filled) */
2077 len_pos = wpabuf_put(resp, 2);
2078 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2079 wpabuf_put_u8(resp, srv_trans_id);
2082 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2083 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2084 wpabuf_head(bsrv->resp),
2085 wpabuf_len(bsrv->resp));
2088 wpabuf_put_data(resp, query, query_len); /* Key */
2089 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2091 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2095 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2097 if (wpabuf_tailroom(resp) < 5)
2100 /* Length (to be filled) */
2101 len_pos = wpabuf_put(resp, 2);
2102 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2103 wpabuf_put_u8(resp, srv_trans_id);
2106 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2107 /* Response Data: empty */
2108 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2114 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2115 struct wpabuf *resp, u8 srv_trans_id)
2117 struct p2p_srv_upnp *usrv;
2120 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2122 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2123 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2127 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2128 struct p2p_srv_upnp, list) {
2129 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2132 /* Length (to be filled) */
2133 len_pos = wpabuf_put(resp, 2);
2134 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2135 wpabuf_put_u8(resp, srv_trans_id);
2138 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2140 wpabuf_put_u8(resp, usrv->version);
2141 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2143 wpabuf_put_str(resp, usrv->service);
2144 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2150 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2151 struct wpabuf *resp, u8 srv_trans_id,
2152 const u8 *query, size_t query_len)
2154 struct p2p_srv_upnp *usrv;
2160 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2163 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2164 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2165 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2170 if (query_len == 0) {
2171 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2175 if (wpabuf_tailroom(resp) < 5)
2178 /* Length (to be filled) */
2179 len_pos = wpabuf_put(resp, 2);
2180 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2181 wpabuf_put_u8(resp, srv_trans_id);
2184 str = os_malloc(query_len);
2187 os_memcpy(str, query + 1, query_len - 1);
2188 str[query_len - 1] = '\0';
2190 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2191 struct p2p_srv_upnp, list) {
2192 if (version != usrv->version)
2195 if (os_strcmp(str, "ssdp:all") != 0 &&
2196 os_strstr(usrv->service, str) == NULL)
2199 if (wpabuf_tailroom(resp) < 2)
2203 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2205 wpabuf_put_u8(resp, version);
2207 wpabuf_put_u8(resp, ',');
2211 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2213 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2215 wpabuf_put_str(resp, usrv->service);
2220 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2223 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2224 /* Response Data: empty */
2227 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2231 #ifdef CONFIG_WIFI_DISPLAY
2232 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2233 struct wpabuf *resp, u8 srv_trans_id,
2234 const u8 *query, size_t query_len)
2240 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2242 if (!wpa_s->global->wifi_display) {
2243 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2244 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2249 if (query_len < 1) {
2250 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2255 if (wpabuf_tailroom(resp) < 5)
2260 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2262 /* TODO: role specific handling */
2264 /* Length (to be filled) */
2265 len_pos = wpabuf_put(resp, 2);
2266 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2267 wpabuf_put_u8(resp, srv_trans_id);
2268 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2270 while (pos < query + query_len) {
2271 if (*pos < MAX_WFD_SUBELEMS &&
2272 wpa_s->global->wfd_subelem[*pos] &&
2273 wpabuf_tailroom(resp) >=
2274 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2275 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2276 "subelement %u", *pos);
2277 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2282 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2284 #endif /* CONFIG_WIFI_DISPLAY */
2287 static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2288 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
2290 struct wpa_supplicant *wpa_s = ctx;
2291 const u8 *pos = tlvs;
2292 const u8 *end = tlvs + tlvs_len;
2295 struct wpabuf *resp;
2296 u8 srv_proto, srv_trans_id;
2300 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2302 buf_len = 2 * tlvs_len + 1;
2303 buf = os_malloc(buf_len);
2305 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2306 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2308 freq, MAC2STR(sa), dialog_token, update_indic,
2313 if (wpa_s->p2p_sd_over_ctrl_iface) {
2314 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2315 update_indic, tlvs, tlvs_len);
2316 return; /* to be processed by an external program */
2319 resp = wpabuf_alloc(10000);
2323 while (pos + 1 < end) {
2324 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2325 slen = WPA_GET_LE16(pos);
2327 if (pos + slen > end || slen < 2) {
2328 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2333 tlv_end = pos + slen;
2336 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2338 srv_trans_id = *pos++;
2339 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2342 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2343 pos, tlv_end - pos);
2346 if (wpa_s->force_long_sd) {
2347 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2349 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2350 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2354 switch (srv_proto) {
2355 case P2P_SERV_ALL_SERVICES:
2356 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2357 "for all services");
2358 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2359 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2360 wpa_printf(MSG_DEBUG, "P2P: No service "
2361 "discovery protocols available");
2362 wpas_sd_add_proto_not_avail(
2363 resp, P2P_SERV_ALL_SERVICES,
2367 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2368 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2370 case P2P_SERV_BONJOUR:
2371 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2372 pos, tlv_end - pos);
2375 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2376 pos, tlv_end - pos);
2378 #ifdef CONFIG_WIFI_DISPLAY
2379 case P2P_SERV_WIFI_DISPLAY:
2380 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2381 pos, tlv_end - pos);
2383 #endif /* CONFIG_WIFI_DISPLAY */
2385 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2386 "protocol %u", srv_proto);
2387 wpas_sd_add_proto_not_avail(resp, srv_proto,
2396 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2397 update_indic, tlvs, tlvs_len);
2399 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2405 static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2406 const u8 *tlvs, size_t tlvs_len)
2408 struct wpa_supplicant *wpa_s = ctx;
2409 const u8 *pos = tlvs;
2410 const u8 *end = tlvs + tlvs_len;
2416 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2418 if (tlvs_len > 1500) {
2419 /* TODO: better way for handling this */
2420 wpa_msg_ctrl(wpa_s, MSG_INFO,
2421 P2P_EVENT_SERV_DISC_RESP MACSTR
2422 " %u <long response: %u bytes>",
2423 MAC2STR(sa), update_indic,
2424 (unsigned int) tlvs_len);
2426 buf_len = 2 * tlvs_len + 1;
2427 buf = os_malloc(buf_len);
2429 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2430 wpa_msg_ctrl(wpa_s, MSG_INFO,
2431 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2432 MAC2STR(sa), update_indic, buf);
2438 u8 srv_proto, srv_trans_id, status;
2440 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2441 slen = WPA_GET_LE16(pos);
2443 if (pos + slen > end || slen < 3) {
2444 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2448 tlv_end = pos + slen;
2451 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2453 srv_trans_id = *pos++;
2454 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2457 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2460 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2461 pos, tlv_end - pos);
2466 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
2470 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2471 const struct wpabuf *tlvs)
2473 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2475 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
2479 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2480 u8 version, const char *query)
2482 struct wpabuf *tlvs;
2485 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2488 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2489 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2490 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2491 wpabuf_put_u8(tlvs, version);
2492 wpabuf_put_str(tlvs, query);
2493 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2499 #ifdef CONFIG_WIFI_DISPLAY
2501 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2502 const struct wpabuf *tlvs)
2504 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2506 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2510 #define MAX_WFD_SD_SUBELEMS 20
2512 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2513 const char *subelems)
2520 len = wpabuf_put(tlvs, 2);
2521 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2522 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2524 wpabuf_put_u8(tlvs, role);
2529 if (val >= 0 && val < 256) {
2530 wpabuf_put_u8(tlvs, val);
2532 if (count == MAX_WFD_SD_SUBELEMS)
2535 pos = os_strchr(pos + 1, ',');
2541 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2545 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2546 const u8 *dst, const char *role)
2548 struct wpabuf *tlvs;
2550 const char *subelems;
2553 subelems = os_strchr(role, ' ');
2554 if (subelems == NULL)
2558 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2562 if (os_strstr(role, "[source]"))
2563 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2564 if (os_strstr(role, "[pri-sink]"))
2565 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2566 if (os_strstr(role, "[sec-sink]"))
2567 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2568 if (os_strstr(role, "[source+sink]"))
2569 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2571 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2576 #endif /* CONFIG_WIFI_DISPLAY */
2579 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
2581 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2583 return p2p_sd_cancel_request(wpa_s->global->p2p,
2584 (void *) (uintptr_t) req);
2588 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2589 const u8 *dst, u8 dialog_token,
2590 const struct wpabuf *resp_tlvs)
2592 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2594 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2599 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2601 if (wpa_s->global->p2p)
2602 p2p_sd_service_update(wpa_s->global->p2p);
2606 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2608 dl_list_del(&bsrv->list);
2609 wpabuf_free(bsrv->query);
2610 wpabuf_free(bsrv->resp);
2615 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2617 dl_list_del(&usrv->list);
2618 os_free(usrv->service);
2623 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2625 struct p2p_srv_bonjour *bsrv, *bn;
2626 struct p2p_srv_upnp *usrv, *un;
2628 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2629 struct p2p_srv_bonjour, list)
2630 wpas_p2p_srv_bonjour_free(bsrv);
2632 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2633 struct p2p_srv_upnp, list)
2634 wpas_p2p_srv_upnp_free(usrv);
2636 wpas_p2p_sd_service_update(wpa_s);
2640 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2641 struct wpabuf *query, struct wpabuf *resp)
2643 struct p2p_srv_bonjour *bsrv;
2645 bsrv = os_zalloc(sizeof(*bsrv));
2648 bsrv->query = query;
2650 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2652 wpas_p2p_sd_service_update(wpa_s);
2657 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2658 const struct wpabuf *query)
2660 struct p2p_srv_bonjour *bsrv;
2662 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2665 wpas_p2p_srv_bonjour_free(bsrv);
2666 wpas_p2p_sd_service_update(wpa_s);
2671 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2672 const char *service)
2674 struct p2p_srv_upnp *usrv;
2676 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2677 return 0; /* Already listed */
2678 usrv = os_zalloc(sizeof(*usrv));
2681 usrv->version = version;
2682 usrv->service = os_strdup(service);
2683 if (usrv->service == NULL) {
2687 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2689 wpas_p2p_sd_service_update(wpa_s);
2694 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2695 const char *service)
2697 struct p2p_srv_upnp *usrv;
2699 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2702 wpas_p2p_srv_upnp_free(usrv);
2703 wpas_p2p_sd_service_update(wpa_s);
2708 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2709 const u8 *peer, const char *params,
2710 unsigned int generated_pin)
2712 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2713 " %08d%s", MAC2STR(peer), generated_pin, params);
2717 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2718 const u8 *peer, const char *params)
2720 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2721 "%s", MAC2STR(peer), params);
2725 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2726 const u8 *dev_addr, const u8 *pri_dev_type,
2727 const char *dev_name, u16 supp_config_methods,
2728 u8 dev_capab, u8 group_capab, const u8 *group_id,
2729 size_t group_id_len)
2731 struct wpa_supplicant *wpa_s = ctx;
2732 char devtype[WPS_DEV_TYPE_BUFSIZE];
2734 u8 empty_dev_type[8];
2735 unsigned int generated_pin = 0;
2736 struct wpa_supplicant *group = NULL;
2739 for (group = wpa_s->global->ifaces; group; group = group->next)
2741 struct wpa_ssid *s = group->current_ssid;
2743 s->mode == WPAS_MODE_P2P_GO &&
2744 group_id_len - ETH_ALEN == s->ssid_len &&
2745 os_memcmp(group_id + ETH_ALEN, s->ssid,
2751 if (pri_dev_type == NULL) {
2752 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2753 pri_dev_type = empty_dev_type;
2755 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2756 " pri_dev_type=%s name='%s' config_methods=0x%x "
2757 "dev_capab=0x%x group_capab=0x%x%s%s",
2759 wps_dev_type_bin2str(pri_dev_type, devtype,
2761 dev_name, supp_config_methods, dev_capab, group_capab,
2762 group ? " group=" : "",
2763 group ? group->ifname : "");
2764 params[sizeof(params) - 1] = '\0';
2766 if (config_methods & WPS_CONFIG_DISPLAY) {
2767 generated_pin = wps_generate_pin();
2768 wpas_prov_disc_local_display(wpa_s, peer, params,
2770 } else if (config_methods & WPS_CONFIG_KEYPAD)
2771 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2772 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2773 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2774 MACSTR "%s", MAC2STR(peer), params);
2776 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2777 P2P_PROV_DISC_SUCCESS,
2778 config_methods, generated_pin);
2782 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2784 struct wpa_supplicant *wpa_s = ctx;
2785 unsigned int generated_pin = 0;
2788 if (wpa_s->pending_pd_before_join &&
2789 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2790 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2791 wpa_s->pending_pd_before_join = 0;
2792 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2793 "join-existing-group operation");
2794 wpas_p2p_join_start(wpa_s);
2798 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2799 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2800 os_snprintf(params, sizeof(params), " peer_go=%d",
2801 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2805 if (config_methods & WPS_CONFIG_DISPLAY)
2806 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2807 else if (config_methods & WPS_CONFIG_KEYPAD) {
2808 generated_pin = wps_generate_pin();
2809 wpas_prov_disc_local_display(wpa_s, peer, params,
2811 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2812 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2813 MACSTR "%s", MAC2STR(peer), params);
2815 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2816 P2P_PROV_DISC_SUCCESS,
2817 config_methods, generated_pin);
2821 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2822 enum p2p_prov_disc_status status)
2824 struct wpa_supplicant *wpa_s = ctx;
2826 if (wpa_s->p2p_fallback_to_go_neg) {
2827 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2828 "failed - fall back to GO Negotiation");
2829 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2833 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2834 wpa_s->pending_pd_before_join = 0;
2835 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2836 "join-existing-group operation (no ACK for PD "
2838 wpas_p2p_join_start(wpa_s);
2842 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2843 " p2p_dev_addr=" MACSTR " status=%d",
2844 MAC2STR(peer), status);
2846 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2851 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2853 if (channels == NULL)
2854 return 1; /* Assume no restrictions */
2855 return p2p_channels_includes_freq(channels, freq);
2860 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2861 const u8 *go_dev_addr, const u8 *ssid,
2862 size_t ssid_len, int *go, u8 *group_bssid,
2863 int *force_freq, int persistent_group,
2864 const struct p2p_channels *channels)
2866 struct wpa_supplicant *wpa_s = ctx;
2869 struct wpa_supplicant *grp;
2871 if (!persistent_group) {
2872 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2873 " to join an active group (SSID: %s)",
2874 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2875 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2876 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2878 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2879 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2880 "authorized invitation");
2884 * Do not accept the invitation automatically; notify user and
2887 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2890 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2892 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2893 "running persistent group");
2895 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2899 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2900 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2901 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2902 "invitation to re-invoke a persistent group");
2903 } else if (!wpa_s->conf->persistent_reconnect)
2904 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2906 for (s = wpa_s->conf->ssid; s; s = s->next) {
2907 if (s->disabled == 2 &&
2908 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2909 s->ssid_len == ssid_len &&
2910 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2915 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2916 " requested reinvocation of an unknown group",
2918 return P2P_SC_FAIL_UNKNOWN_GROUP;
2921 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2923 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2924 wpa_printf(MSG_DEBUG, "P2P: The only available "
2925 "interface is already in use - reject "
2927 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2929 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2930 } else if (s->mode == WPAS_MODE_P2P_GO) {
2932 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2934 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2935 "interface address for the group");
2936 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2938 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2943 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2945 /* Get one of the frequencies currently in use */
2946 if (wpas_p2p_valid_oper_freqs(wpa_s, &res, 1) > 0) {
2947 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2948 wpas_p2p_set_own_freq_preference(wpa_s, res);
2950 if (wpa_s->num_multichan_concurrent < 2 ||
2951 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2952 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2957 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2958 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2960 /* We are the client */
2961 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2962 "running a GO but we are capable of MCC, "
2963 "figure out the best channel to use");
2965 } else if (!freq_included(channels, *force_freq)) {
2966 /* We are the GO, and *force_freq is not in the
2968 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2969 "in intersection but we are capable of MCC, "
2970 "figure out the best channel to use",
2976 return P2P_SC_SUCCESS;
2980 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2981 const u8 *ssid, size_t ssid_len,
2982 const u8 *go_dev_addr, u8 status,
2985 struct wpa_supplicant *wpa_s = ctx;
2988 for (s = wpa_s->conf->ssid; s; s = s->next) {
2989 if (s->disabled == 2 &&
2990 s->ssid_len == ssid_len &&
2991 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2995 if (status == P2P_SC_SUCCESS) {
2996 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2997 " was accepted; op_freq=%d MHz, SSID=%s",
2998 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3000 int go = s->mode == WPAS_MODE_P2P_GO;
3001 wpas_p2p_group_add_persistent(
3002 wpa_s, s, go, go ? op_freq : 0, 0, 0, NULL,
3003 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3005 wpa_s->user_initiated_pd = 0;
3006 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3007 wpa_s->p2p_wps_method, 0,
3013 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3014 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3015 " was rejected (status %u)", MAC2STR(sa), status);
3021 wpa_msg_global(wpa_s, MSG_INFO,
3022 P2P_EVENT_INVITATION_RECEIVED
3023 "sa=" MACSTR " go_dev_addr=" MACSTR
3024 " bssid=" MACSTR " unknown-network",
3025 MAC2STR(sa), MAC2STR(go_dev_addr),
3028 wpa_msg_global(wpa_s, MSG_INFO,
3029 P2P_EVENT_INVITATION_RECEIVED
3030 "sa=" MACSTR " go_dev_addr=" MACSTR
3032 MAC2STR(sa), MAC2STR(go_dev_addr));
3037 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3038 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3039 "sa=" MACSTR " persistent=%d freq=%d",
3040 MAC2STR(sa), s->id, op_freq);
3042 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3043 "sa=" MACSTR " persistent=%d",
3044 MAC2STR(sa), s->id);
3049 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3050 struct wpa_ssid *ssid,
3051 const u8 *peer, int inv)
3058 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3059 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
3063 if (i >= ssid->num_p2p_clients) {
3064 if (ssid->mode != WPAS_MODE_P2P_GO &&
3065 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3066 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3067 "due to invitation result", ssid->id);
3068 wpas_notify_network_removed(wpa_s, ssid);
3069 wpa_config_remove_network(wpa_s->conf, ssid->id);
3072 return; /* Peer not found in client list */
3075 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3076 "group %d client list%s",
3077 MAC2STR(peer), ssid->id,
3078 inv ? " due to invitation result" : "");
3079 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
3080 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
3081 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
3082 ssid->num_p2p_clients--;
3083 #ifndef CONFIG_NO_CONFIG_WRITE
3084 if (wpa_s->parent->conf->update_config &&
3085 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
3086 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3087 #endif /* CONFIG_NO_CONFIG_WRITE */
3091 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3094 struct wpa_ssid *ssid;
3096 wpa_s = wpa_s->global->p2p_invite_group;
3098 return; /* No known invitation group */
3099 ssid = wpa_s->current_ssid;
3100 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3101 !ssid->p2p_persistent_group)
3102 return; /* Not operating as a GO in persistent group */
3103 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3104 ssid->ssid, ssid->ssid_len);
3105 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3109 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3110 const struct p2p_channels *channels,
3111 const u8 *peer, int neg_freq)
3113 struct wpa_supplicant *wpa_s = ctx;
3114 struct wpa_ssid *ssid;
3118 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3119 "status=%d " MACSTR,
3120 status, MAC2STR(bssid));
3122 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3123 "status=%d ", status);
3125 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3127 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3128 status, MAC2STR(peer));
3129 if (wpa_s->pending_invite_ssid_id == -1) {
3130 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3131 wpas_remove_persistent_client(wpa_s, peer);
3132 return; /* Invitation to active group */
3135 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3136 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3137 "invitation exchange to indicate readiness for "
3141 if (status != P2P_SC_SUCCESS) {
3142 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3143 ssid = wpa_config_get_network(
3144 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3145 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3147 wpas_p2p_remove_pending_group_interface(wpa_s);
3151 ssid = wpa_config_get_network(wpa_s->conf,
3152 wpa_s->pending_invite_ssid_id);
3154 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3155 "data matching with invitation");
3160 * The peer could have missed our ctrl::ack frame for Invitation
3161 * Response and continue retransmitting the frame. To reduce the
3162 * likelihood of the peer not getting successful TX status for the
3163 * Invitation Response frame, wait a short time here before starting
3164 * the persistent group so that we will remain on the current channel to
3165 * acknowledge any possible retransmission from the peer.
3167 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3168 "starting persistent group");
3171 freq = wpa_s->p2p_persistent_go_freq;
3172 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3173 freq_included(channels, neg_freq)) {
3174 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use frequence %d MHz from invitation for GO mode",
3179 wpas_p2p_group_add_persistent(wpa_s, ssid,
3180 ssid->mode == WPAS_MODE_P2P_GO,
3182 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3184 ssid->mode == WPAS_MODE_P2P_GO ?
3185 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3190 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3193 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3195 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3199 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3201 reg->channel[reg->channels] = chan;
3206 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3207 struct p2p_channels *chan,
3208 struct p2p_channels *cli_chan)
3212 os_memset(cli_chan, 0, sizeof(*cli_chan));
3214 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3217 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3218 chan->reg_class[cla].reg_class = 81;
3219 chan->reg_class[cla].channels = 0;
3220 for (i = 0; i < 11; i++) {
3221 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3222 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3224 if (chan->reg_class[cla].channels)
3227 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3230 /* Operating class 115 - 5 GHz, channels 36-48 */
3231 chan->reg_class[cla].reg_class = 115;
3232 chan->reg_class[cla].channels = 0;
3233 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3234 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3235 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3236 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3237 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3238 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3239 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3240 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3241 if (chan->reg_class[cla].channels)
3244 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3247 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3248 chan->reg_class[cla].reg_class = 124;
3249 chan->reg_class[cla].channels = 0;
3250 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3251 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3252 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3253 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3254 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3255 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3256 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3257 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3258 if (chan->reg_class[cla].channels)
3261 chan->reg_classes = cla;
3266 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3268 enum hostapd_hw_mode mode)
3272 for (i = 0; i < num_modes; i++) {
3273 if (modes[i].mode == mode)
3282 NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
3285 static int has_channel(struct wpa_global *global,
3286 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3291 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3293 if (wpas_p2p_disallowed_freq(global, freq))
3296 for (i = 0; i < mode->num_channels; i++) {
3297 if (mode->channels[i].chan == chan) {
3299 *flags = mode->channels[i].flag;
3300 if (mode->channels[i].flag &
3301 (HOSTAPD_CHAN_DISABLED |
3302 HOSTAPD_CHAN_RADAR))
3304 if (mode->channels[i].flag &
3305 (HOSTAPD_CHAN_PASSIVE_SCAN |
3306 HOSTAPD_CHAN_NO_IBSS))
3307 return PASSIVE_ONLY;
3316 struct p2p_oper_class_map {
3317 enum hostapd_hw_mode mode;
3322 enum { BW20, BW40PLUS, BW40MINUS, BW80 } bw;
3325 static struct p2p_oper_class_map op_class[] = {
3326 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3327 #if 0 /* Do not enable HT40 on 2 GHz for now */
3328 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3329 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3331 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3332 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3333 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3334 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3335 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3336 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3339 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3340 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3341 * 80 MHz, but currently use the following definition for simplicity
3342 * (these center frequencies are not actual channels, which makes
3343 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3344 * removing invalid channels.
3346 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3347 { -1, 0, 0, 0, 0, BW20 }
3351 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3352 struct hostapd_hw_modes *mode,
3355 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3358 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3361 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3363 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3364 * so the center channel is 6 channels away from the start/end.
3366 if (channel >= center_channels[i] - 6 &&
3367 channel <= center_channels[i] + 6)
3368 return center_channels[i];
3374 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3375 struct hostapd_hw_modes *mode,
3380 enum chan_allowed res, ret = ALLOWED;
3382 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3385 if (center_chan >= 58 && center_chan <= 138)
3386 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3388 /* check all the channels are available */
3389 for (i = 0; i < 4; i++) {
3390 int adj_chan = center_chan - 6 + i * 4;
3392 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3393 if (res == NOT_ALLOWED)
3395 if (res == PASSIVE_ONLY)
3398 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3400 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3402 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3404 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3412 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3413 struct hostapd_hw_modes *mode,
3417 enum chan_allowed res, res2;
3419 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3420 if (bw == BW40MINUS) {
3421 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3423 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3424 } else if (bw == BW40PLUS) {
3425 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3427 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3428 } else if (bw == BW80) {
3429 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3432 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3434 if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
3435 return PASSIVE_ONLY;
3440 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3441 struct p2p_channels *chan,
3442 struct p2p_channels *cli_chan)
3444 struct hostapd_hw_modes *mode;
3445 int cla, op, cli_cla;
3447 if (wpa_s->hw.modes == NULL) {
3448 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3449 "of all supported channels; assume dualband "
3451 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3456 for (op = 0; op_class[op].op_class; op++) {
3457 struct p2p_oper_class_map *o = &op_class[op];
3459 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3461 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3464 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3465 enum chan_allowed res;
3466 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3467 if (res == ALLOWED) {
3469 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3471 reg = &chan->reg_class[cla];
3473 reg->reg_class = o->op_class;
3475 reg->channel[reg->channels] = ch;
3477 } else if (res == PASSIVE_ONLY &&
3478 wpa_s->conf->p2p_add_cli_chan) {
3479 if (cli_reg == NULL) {
3480 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3482 cli_reg = &cli_chan->reg_class[cli_cla];
3484 cli_reg->reg_class = o->op_class;
3486 cli_reg->channel[cli_reg->channels] = ch;
3487 cli_reg->channels++;
3491 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3492 reg->channel, reg->channels);
3495 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3496 cli_reg->channel, cli_reg->channels);
3500 chan->reg_classes = cla;
3501 cli_chan->reg_classes = cli_cla;
3507 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3508 struct hostapd_hw_modes *mode, u8 channel)
3511 enum chan_allowed ret;
3513 for (op = 0; op_class[op].op_class; op++) {
3514 struct p2p_oper_class_map *o = &op_class[op];
3517 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3518 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3519 o->bw == BW20 || ch != channel)
3521 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3523 return (o->bw == BW40MINUS) ? -1 : 1;
3530 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3531 struct hostapd_hw_modes *mode, u8 channel)
3533 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3536 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3540 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3543 struct wpa_supplicant *wpa_s = ctx;
3545 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3546 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3552 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3556 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3558 struct wpa_supplicant *wpa_s = ctx;
3560 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3561 struct wpa_ssid *ssid = wpa_s->current_ssid;
3564 if (ssid->mode != WPAS_MODE_INFRA)
3566 if (wpa_s->wpa_state != WPA_COMPLETED &&
3567 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3569 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
3577 static int wpas_is_concurrent_session_active(void *ctx)
3579 struct wpa_supplicant *wpa_s = ctx;
3580 struct wpa_supplicant *ifs;
3582 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3585 if (ifs->wpa_state > WPA_ASSOCIATED)
3592 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3594 struct wpa_supplicant *wpa_s = ctx;
3595 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3599 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s)
3601 struct wpa_interface iface;
3602 struct wpa_supplicant *p2pdev_wpa_s;
3604 char force_name[100];
3607 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3609 force_name[0] = '\0';
3610 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3611 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3612 force_name, wpa_s->pending_interface_addr, NULL);
3614 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3617 os_strlcpy(wpa_s->pending_interface_name, ifname,
3618 sizeof(wpa_s->pending_interface_name));
3620 os_memset(&iface, 0, sizeof(iface));
3622 iface.ifname = wpa_s->pending_interface_name;
3623 iface.driver = wpa_s->driver->name;
3624 iface.driver_param = wpa_s->conf->driver_param;
3625 iface.confname = wpa_s->confname;
3626 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3627 if (!p2pdev_wpa_s) {
3628 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3631 p2pdev_wpa_s->parent = wpa_s;
3633 wpa_s->pending_interface_name[0] = '\0';
3638 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3639 const u8 *noa, size_t noa_len)
3641 struct wpa_supplicant *wpa_s, *intf = ctx;
3644 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3645 if (wpa_s->waiting_presence_resp)
3649 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3652 wpa_s->waiting_presence_resp = 0;
3654 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3655 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3656 " status=%u noa=%s", MAC2STR(src), status, hex);
3661 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3662 * @global: Pointer to global data from wpa_supplicant_init()
3663 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3664 * Returns: 0 on success, -1 on failure
3666 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3668 struct p2p_config p2p;
3672 if (wpa_s->conf->p2p_disabled)
3675 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3681 os_memset(&p2p, 0, sizeof(p2p));
3683 p2p.debug_print = wpas_p2p_debug_print;
3684 p2p.p2p_scan = wpas_p2p_scan;
3685 p2p.send_action = wpas_send_action;
3686 p2p.send_action_done = wpas_send_action_done;
3687 p2p.go_neg_completed = wpas_go_neg_completed;
3688 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3689 p2p.dev_found = wpas_dev_found;
3690 p2p.dev_lost = wpas_dev_lost;
3691 p2p.find_stopped = wpas_find_stopped;
3692 p2p.start_listen = wpas_start_listen;
3693 p2p.stop_listen = wpas_stop_listen;
3694 p2p.send_probe_resp = wpas_send_probe_resp;
3695 p2p.sd_request = wpas_sd_request;
3696 p2p.sd_response = wpas_sd_response;
3697 p2p.prov_disc_req = wpas_prov_disc_req;
3698 p2p.prov_disc_resp = wpas_prov_disc_resp;
3699 p2p.prov_disc_fail = wpas_prov_disc_fail;
3700 p2p.invitation_process = wpas_invitation_process;
3701 p2p.invitation_received = wpas_invitation_received;
3702 p2p.invitation_result = wpas_invitation_result;
3703 p2p.get_noa = wpas_get_noa;
3704 p2p.go_connected = wpas_go_connected;
3705 p2p.presence_resp = wpas_presence_resp;
3706 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
3708 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
3709 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
3710 p2p.dev_name = wpa_s->conf->device_name;
3711 p2p.manufacturer = wpa_s->conf->manufacturer;
3712 p2p.model_name = wpa_s->conf->model_name;
3713 p2p.model_number = wpa_s->conf->model_number;
3714 p2p.serial_number = wpa_s->conf->serial_number;
3716 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3717 p2p.config_methods = wpa_s->wps->config_methods;
3720 if (wpa_s->conf->p2p_listen_reg_class &&
3721 wpa_s->conf->p2p_listen_channel) {
3722 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3723 p2p.channel = wpa_s->conf->p2p_listen_channel;
3727 * Pick one of the social channels randomly as the listen
3730 os_get_random((u8 *) &r, sizeof(r));
3731 p2p.channel = 1 + (r % 3) * 5;
3733 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
3735 if (wpa_s->conf->p2p_oper_reg_class &&
3736 wpa_s->conf->p2p_oper_channel) {
3737 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3738 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
3739 p2p.cfg_op_channel = 1;
3740 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3741 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3744 p2p.op_reg_class = 81;
3746 * Use random operation channel from (1, 6, 11) if no other
3747 * preference is indicated.
3749 os_get_random((u8 *) &r, sizeof(r));
3750 p2p.op_channel = 1 + (r % 3) * 5;
3751 p2p.cfg_op_channel = 0;
3752 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3753 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3756 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3757 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3758 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3761 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3762 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3763 p2p.country[2] = 0x04;
3765 os_memcpy(p2p.country, "XX\x04", 3);
3767 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
3768 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
3773 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3776 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3777 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3778 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
3780 p2p.concurrent_operations = !!(wpa_s->drv_flags &
3781 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3783 p2p.max_peers = 100;
3785 if (wpa_s->conf->p2p_ssid_postfix) {
3786 p2p.ssid_postfix_len =
3787 os_strlen(wpa_s->conf->p2p_ssid_postfix);
3788 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3789 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3790 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3791 p2p.ssid_postfix_len);
3794 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
3796 p2p.max_listen = wpa_s->max_remain_on_chan;
3798 global->p2p = p2p_init(&p2p);
3799 if (global->p2p == NULL)
3801 global->p2p_init_wpa_s = wpa_s;
3803 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3804 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3806 p2p_add_wps_vendor_extension(
3807 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
3810 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
3817 * wpas_p2p_deinit - Deinitialize per-interface P2P data
3818 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3820 * This function deinitialize per-interface P2P data.
3822 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
3824 if (wpa_s->driver && wpa_s->drv_priv)
3825 wpa_drv_probe_req_report(wpa_s, 0);
3827 if (wpa_s->go_params) {
3828 /* Clear any stored provisioning info */
3829 p2p_clear_provisioning_info(
3831 wpa_s->go_params->peer_device_addr);
3834 os_free(wpa_s->go_params);
3835 wpa_s->go_params = NULL;
3836 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3837 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3838 wpa_s->p2p_long_listen = 0;
3839 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3840 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3841 wpas_p2p_remove_pending_group_interface(wpa_s);
3842 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
3843 wpas_p2p_listen_work_done(wpa_s);
3844 if (wpa_s->p2p_send_action_work) {
3845 os_free(wpa_s->p2p_send_action_work->ctx);
3846 radio_work_done(wpa_s->p2p_send_action_work);
3847 wpa_s->p2p_send_action_work = NULL;
3849 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
3851 /* TODO: remove group interface from the driver if this wpa_s instance
3852 * is on top of a P2P group interface */
3857 * wpas_p2p_deinit_global - Deinitialize global P2P module
3858 * @global: Pointer to global data from wpa_supplicant_init()
3860 * This function deinitializes the global (per device) P2P module.
3862 void wpas_p2p_deinit_global(struct wpa_global *global)
3864 struct wpa_supplicant *wpa_s, *tmp;
3866 wpa_s = global->ifaces;
3868 wpas_p2p_service_flush(wpa_s);
3870 if (global->p2p == NULL)
3873 /* Remove remaining P2P group interfaces */
3874 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
3875 wpa_s = wpa_s->next;
3877 tmp = global->ifaces;
3880 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
3885 /* Disconnect from the P2P group and deinit the interface */
3886 wpas_p2p_disconnect(tmp);
3890 * Deinit GO data on any possibly remaining interface (if main
3891 * interface is used as GO).
3893 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3894 if (wpa_s->ap_iface)
3895 wpas_p2p_group_deinit(wpa_s);
3898 p2p_deinit(global->p2p);
3900 global->p2p_init_wpa_s = NULL;
3904 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
3906 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3907 wpa_s->conf->p2p_no_group_iface)
3908 return 0; /* separate interface disabled per configuration */
3909 if (wpa_s->drv_flags &
3910 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
3911 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
3912 return 1; /* P2P group requires a new interface in every case
3914 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
3915 return 0; /* driver does not support concurrent operations */
3916 if (wpa_s->global->ifaces->next)
3917 return 1; /* more that one interface already in use */
3918 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3919 return 1; /* this interface is already in use */
3924 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
3925 const u8 *peer_addr,
3926 enum p2p_wps_method wps_method,
3927 int go_intent, const u8 *own_interface_addr,
3928 unsigned int force_freq, int persistent_group,
3929 struct wpa_ssid *ssid, unsigned int pref_freq)
3931 if (persistent_group && wpa_s->conf->persistent_reconnect)
3932 persistent_group = 2;
3935 * Increase GO config timeout if HT40 is used since it takes some time
3936 * to scan channels for coex purposes before the BSS can be started.
3938 p2p_set_config_timeout(wpa_s->global->p2p,
3939 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
3941 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
3942 go_intent, own_interface_addr, force_freq,
3943 persistent_group, ssid ? ssid->ssid : NULL,
3944 ssid ? ssid->ssid_len : 0,
3945 wpa_s->p2p_pd_before_go_neg, pref_freq, 0);
3949 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
3950 const u8 *peer_addr,
3951 enum p2p_wps_method wps_method,
3952 int go_intent, const u8 *own_interface_addr,
3953 unsigned int force_freq, int persistent_group,
3954 struct wpa_ssid *ssid, unsigned int pref_freq)
3956 if (persistent_group && wpa_s->conf->persistent_reconnect)
3957 persistent_group = 2;
3959 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
3960 go_intent, own_interface_addr, force_freq,
3961 persistent_group, ssid ? ssid->ssid : NULL,
3962 ssid ? ssid->ssid_len : 0, pref_freq, 0);
3966 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
3968 wpa_s->p2p_join_scan_count++;
3969 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
3970 wpa_s->p2p_join_scan_count);
3971 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
3972 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3973 " for join operationg - stop join attempt",
3974 MAC2STR(wpa_s->pending_join_iface_addr));
3975 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3976 if (wpa_s->p2p_auto_pd) {
3977 wpa_s->p2p_auto_pd = 0;
3978 wpa_msg_global(wpa_s, MSG_INFO,
3979 P2P_EVENT_PROV_DISC_FAILURE
3980 " p2p_dev_addr=" MACSTR " status=N/A",
3981 MAC2STR(wpa_s->pending_join_dev_addr));
3984 wpa_msg_global(wpa_s->parent, MSG_INFO,
3985 P2P_EVENT_GROUP_FORMATION_FAILURE);
3990 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3992 int *freqs, res, num, i;
3994 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
3995 /* Multiple channels are supported and not all are in use */
3999 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
4003 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4004 wpa_s->num_multichan_concurrent);
4010 for (i = 0; i < num; i++) {
4011 if (freqs[i] == freq) {
4012 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4027 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4028 const u8 *peer_dev_addr)
4030 struct wpa_bss *bss;
4033 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4036 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4037 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4042 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4044 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4045 "%ld.%06ld (%supdated in last scan)",
4046 bss->last_update.sec, bss->last_update.usec,
4047 updated ? "": "not ");
4053 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4054 struct wpa_scan_results *scan_res)
4056 struct wpa_bss *bss = NULL;
4058 u8 iface_addr[ETH_ALEN];
4060 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4062 if (wpa_s->global->p2p_disabled)
4065 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4066 scan_res ? (int) scan_res->num : -1,
4067 wpa_s->p2p_auto_join ? "auto_" : "");
4070 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4072 if (wpa_s->p2p_auto_pd) {
4073 int join = wpas_p2p_peer_go(wpa_s,
4074 wpa_s->pending_join_dev_addr);
4076 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4077 wpa_s->auto_pd_scan_retry++;
4078 bss = wpa_bss_get_bssid_latest(
4079 wpa_s, wpa_s->pending_join_dev_addr);
4082 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4083 "the peer " MACSTR " at %d MHz",
4084 wpa_s->auto_pd_scan_retry,
4086 pending_join_dev_addr),
4088 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4096 wpa_s->p2p_auto_pd = 0;
4097 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4098 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4099 MAC2STR(wpa_s->pending_join_dev_addr), join);
4100 if (p2p_prov_disc_req(wpa_s->global->p2p,
4101 wpa_s->pending_join_dev_addr,
4102 wpa_s->pending_pd_config_methods, join,
4103 0, wpa_s->user_initiated_pd) < 0) {
4104 wpa_s->p2p_auto_pd = 0;
4105 wpa_msg_global(wpa_s, MSG_INFO,
4106 P2P_EVENT_PROV_DISC_FAILURE
4107 " p2p_dev_addr=" MACSTR " status=N/A",
4108 MAC2STR(wpa_s->pending_join_dev_addr));
4113 if (wpa_s->p2p_auto_join) {
4114 int join = wpas_p2p_peer_go(wpa_s,
4115 wpa_s->pending_join_dev_addr);
4117 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4118 "running a GO -> use GO Negotiation");
4119 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4120 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4121 wpa_s->p2p_persistent_group, 0, 0, 0,
4122 wpa_s->p2p_go_intent,
4123 wpa_s->p2p_connect_freq,
4124 wpa_s->p2p_persistent_id,
4125 wpa_s->p2p_pd_before_go_neg,
4131 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4132 "try to join the group", join ? "" :
4135 wpa_s->p2p_fallback_to_go_neg = 1;
4138 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4139 wpa_s->pending_join_iface_addr);
4141 p2p_get_interface_addr(wpa_s->global->p2p,
4142 wpa_s->pending_join_dev_addr,
4144 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
4146 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4147 "address for join from " MACSTR " to " MACSTR
4148 " based on newly discovered P2P peer entry",
4149 MAC2STR(wpa_s->pending_join_iface_addr),
4150 MAC2STR(iface_addr));
4151 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4154 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4155 wpa_s->pending_join_iface_addr);
4158 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4159 "from P2P peer table: %d MHz", freq);
4161 if (wpa_s->p2p_join_ssid_len) {
4162 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4163 MACSTR " and SSID %s",
4164 MAC2STR(wpa_s->pending_join_iface_addr),
4165 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4166 wpa_s->p2p_join_ssid_len));
4167 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4168 wpa_s->p2p_join_ssid,
4169 wpa_s->p2p_join_ssid_len);
4172 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4173 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4174 bss = wpa_bss_get_bssid_latest(wpa_s,
4175 wpa_s->pending_join_iface_addr);
4179 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4180 "from BSS table: %d MHz (SSID %s)", freq,
4181 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4186 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4187 wpa_msg_global(wpa_s->parent, MSG_INFO,
4188 P2P_EVENT_GROUP_FORMATION_FAILURE
4189 "reason=FREQ_CONFLICT");
4193 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4194 "prior to joining an existing group (GO " MACSTR
4196 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4197 wpa_s->pending_pd_before_join = 1;
4199 switch (wpa_s->pending_join_wps_method) {
4200 case WPS_PIN_DISPLAY:
4201 method = WPS_CONFIG_KEYPAD;
4203 case WPS_PIN_KEYPAD:
4204 method = WPS_CONFIG_DISPLAY;
4207 method = WPS_CONFIG_PUSHBUTTON;
4214 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4215 wpa_s->pending_join_dev_addr) ==
4218 * We have already performed provision discovery for
4219 * joining the group. Proceed directly to join
4220 * operation without duplicated provision discovery. */
4221 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4222 "with " MACSTR " already done - proceed to "
4224 MAC2STR(wpa_s->pending_join_dev_addr));
4225 wpa_s->pending_pd_before_join = 0;
4229 if (p2p_prov_disc_req(wpa_s->global->p2p,
4230 wpa_s->pending_join_dev_addr, method, 1,
4231 freq, wpa_s->user_initiated_pd) < 0) {
4232 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4233 "Discovery Request before joining an "
4235 wpa_s->pending_pd_before_join = 0;
4241 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4242 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4243 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4244 wpas_p2p_check_join_scan_limit(wpa_s);
4248 /* Start join operation immediately */
4249 wpas_p2p_join_start(wpa_s);
4253 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4254 const u8 *ssid, size_t ssid_len)
4257 struct wpa_driver_scan_params params;
4258 struct wpabuf *wps_ie, *ies;
4260 int freqs[2] = { 0, 0 };
4262 os_memset(¶ms, 0, sizeof(params));
4264 /* P2P Wildcard SSID */
4265 params.num_ssids = 1;
4266 if (ssid && ssid_len) {
4267 params.ssids[0].ssid = ssid;
4268 params.ssids[0].ssid_len = ssid_len;
4269 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4270 wpa_s->p2p_join_ssid_len = ssid_len;
4272 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4273 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4274 wpa_s->p2p_join_ssid_len = 0;
4277 wpa_s->wps->dev.p2p = 1;
4278 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4279 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4281 if (wps_ie == NULL) {
4282 wpas_p2p_scan_res_join(wpa_s, NULL);
4286 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4287 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4289 wpabuf_free(wps_ie);
4290 wpas_p2p_scan_res_join(wpa_s, NULL);
4293 wpabuf_put_buf(ies, wps_ie);
4294 wpabuf_free(wps_ie);
4296 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4298 params.p2p_probe = 1;
4299 params.extra_ies = wpabuf_head(ies);
4300 params.extra_ies_len = wpabuf_len(ies);
4305 * If freq is not provided, check the operating freq of the GO
4306 * and use a single channel scan on if possible.
4308 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4309 wpa_s->pending_join_iface_addr);
4315 params.freqs = freqs;
4319 * Run a scan to update BSS table and start Provision Discovery once
4320 * the new scan results become available.
4322 ret = wpa_drv_scan(wpa_s, ¶ms);
4324 os_get_reltime(&wpa_s->scan_trigger_time);
4325 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4326 wpa_s->own_scan_requested = 1;
4332 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4334 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4335 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4336 wpas_p2p_check_join_scan_limit(wpa_s);
4341 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4343 struct wpa_supplicant *wpa_s = eloop_ctx;
4344 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4348 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4349 const u8 *dev_addr, enum p2p_wps_method wps_method,
4350 int auto_join, const u8 *ssid, size_t ssid_len)
4352 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4353 MACSTR " dev " MACSTR ")%s",
4354 MAC2STR(iface_addr), MAC2STR(dev_addr),
4355 auto_join ? " (auto_join)" : "");
4356 if (ssid && ssid_len) {
4357 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4358 wpa_ssid_txt(ssid, ssid_len));
4361 wpa_s->p2p_auto_pd = 0;
4362 wpa_s->p2p_auto_join = !!auto_join;
4363 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4364 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4365 wpa_s->pending_join_wps_method = wps_method;
4367 /* Make sure we are not running find during connection establishment */
4368 wpas_p2p_stop_find(wpa_s);
4370 wpa_s->p2p_join_scan_count = 0;
4371 wpas_p2p_join_scan_req(wpa_s, 0, ssid, ssid_len);
4376 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
4378 struct wpa_supplicant *group;
4379 struct p2p_go_neg_results res;
4380 struct wpa_bss *bss;
4382 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4385 if (group != wpa_s) {
4386 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4387 sizeof(group->p2p_pin));
4388 group->p2p_wps_method = wpa_s->p2p_wps_method;
4391 * Need to mark the current interface for p2p_group_formation
4392 * when a separate group interface is not used. This is needed
4393 * to allow p2p_cancel stop a pending p2p_connect-join.
4394 * wpas_p2p_init_group_interface() addresses this for the case
4395 * where a separate group interface is used.
4397 wpa_s->global->p2p_group_formation = wpa_s;
4400 group->p2p_in_provisioning = 1;
4401 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4403 os_memset(&res, 0, sizeof(res));
4404 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4406 res.wps_method = wpa_s->pending_join_wps_method;
4407 bss = wpa_bss_get_bssid_latest(wpa_s, wpa_s->pending_join_iface_addr);
4409 res.freq = bss->freq;
4410 res.ssid_len = bss->ssid_len;
4411 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4412 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency "
4413 "from BSS table: %d MHz (SSID %s)", bss->freq,
4414 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4417 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4418 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4420 wpa_drv_cancel_remain_on_channel(wpa_s);
4421 wpa_s->off_channel_freq = 0;
4422 wpa_s->roc_waiting_drv_freq = 0;
4424 wpas_start_wps_enrollee(group, &res);
4427 * Allow a longer timeout for join-a-running-group than normal 15
4428 * second group formation timeout since the GO may not have authorized
4429 * our connection yet.
4431 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4432 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4439 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4440 int *force_freq, int *pref_freq, int go)
4443 unsigned int freq_in_use = 0, num, i;
4445 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
4449 num = get_shared_radio_freqs(wpa_s, freqs,
4450 wpa_s->num_multichan_concurrent);
4451 wpa_printf(MSG_DEBUG,
4452 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u",
4453 freq, wpa_s->num_multichan_concurrent, num);
4458 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4460 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4462 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4463 "(%u MHz) is not supported for P2P uses",
4469 for (i = 0; i < num; i++) {
4470 if (freqs[i] == freq)
4474 if (num == wpa_s->num_multichan_concurrent && !freq_in_use) {
4475 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4480 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4481 "requested channel (%u MHz)", freq);
4486 for (i = 0; i < num; i++) {
4487 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i]))
4490 if (*pref_freq == 0 && num < wpa_s->num_multichan_concurrent) {
4491 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4493 *pref_freq = freqs[i];
4495 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4497 *force_freq = freqs[i];
4503 if (num < wpa_s->num_multichan_concurrent && num > 0) {
4504 wpa_printf(MSG_DEBUG, "P2P: Current operating channels are not available for P2P. Try to use another channel");
4506 } else if (num < wpa_s->num_multichan_concurrent) {
4507 wpa_printf(MSG_DEBUG, "P2P: No current operating channels - try to use a new channel");
4510 wpa_printf(MSG_DEBUG, "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4525 * wpas_p2p_connect - Request P2P Group Formation to be started
4526 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4527 * @peer_addr: Address of the peer P2P Device
4528 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4529 * @persistent_group: Whether to create a persistent group
4530 * @auto_join: Whether to select join vs. GO Negotiation automatically
4531 * @join: Whether to join an existing group (as a client) instead of starting
4532 * Group Owner negotiation; @peer_addr is BSSID in that case
4533 * @auth: Whether to only authorize the connection instead of doing that and
4534 * initiating Group Owner negotiation
4535 * @go_intent: GO Intent or -1 to use default
4536 * @freq: Frequency for the group or 0 for auto-selection
4537 * @persistent_id: Persistent group credentials to use for forcing GO
4538 * parameters or -1 to generate new values (SSID/passphrase)
4539 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4540 * interoperability workaround when initiating group formation
4541 * @ht40: Start GO with 40 MHz channel width
4542 * @vht: Start GO with VHT support
4543 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4544 * failure, -2 on failure due to channel not currently available,
4545 * -3 if forced channel is not supported
4547 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4548 const char *pin, enum p2p_wps_method wps_method,
4549 int persistent_group, int auto_join, int join, int auth,
4550 int go_intent, int freq, int persistent_id, int pd,
4553 int force_freq = 0, pref_freq = 0;
4555 enum wpa_driver_if_type iftype;
4557 struct wpa_ssid *ssid = NULL;
4559 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4562 if (persistent_id >= 0) {
4563 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4564 if (ssid == NULL || ssid->disabled != 2 ||
4565 ssid->mode != WPAS_MODE_P2P_GO)
4569 os_free(wpa_s->global->add_psk);
4570 wpa_s->global->add_psk = NULL;
4572 wpa_s->global->p2p_fail_on_wps_complete = 0;
4575 go_intent = wpa_s->conf->p2p_go_intent;
4578 wpa_s->p2p_long_listen = 0;
4580 wpa_s->p2p_wps_method = wps_method;
4581 wpa_s->p2p_persistent_group = !!persistent_group;
4582 wpa_s->p2p_persistent_id = persistent_id;
4583 wpa_s->p2p_go_intent = go_intent;
4584 wpa_s->p2p_connect_freq = freq;
4585 wpa_s->p2p_fallback_to_go_neg = 0;
4586 wpa_s->p2p_pd_before_go_neg = !!pd;
4587 wpa_s->p2p_go_ht40 = !!ht40;
4588 wpa_s->p2p_go_vht = !!vht;
4591 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4592 else if (wps_method == WPS_PIN_DISPLAY) {
4593 ret = wps_generate_pin();
4594 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4596 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4599 wpa_s->p2p_pin[0] = '\0';
4601 if (join || auto_join) {
4602 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
4604 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4605 "connect a running group from " MACSTR,
4606 MAC2STR(peer_addr));
4607 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4610 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
4611 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4613 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4614 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4618 os_get_reltime(&wpa_s->p2p_auto_started);
4619 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4621 wpa_s->p2p_auto_started.sec,
4622 wpa_s->p2p_auto_started.usec);
4624 wpa_s->user_initiated_pd = 1;
4625 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
4626 auto_join, NULL, 0) < 0)
4631 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4635 wpas_p2p_set_own_freq_preference(wpa_s,
4636 force_freq ? force_freq : pref_freq);
4638 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4640 if (wpa_s->create_p2p_iface) {
4641 /* Prepare to add a new interface for the group */
4642 iftype = WPA_IF_P2P_GROUP;
4643 if (go_intent == 15)
4644 iftype = WPA_IF_P2P_GO;
4645 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4646 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4647 "interface for the group");
4651 if_addr = wpa_s->pending_interface_addr;
4653 if_addr = wpa_s->own_addr;
4656 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
4658 force_freq, persistent_group, ssid,
4664 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4665 go_intent, if_addr, force_freq,
4666 persistent_group, ssid, pref_freq) < 0) {
4667 if (wpa_s->create_p2p_iface)
4668 wpas_p2p_remove_pending_group_interface(wpa_s);
4676 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4677 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4678 * @freq: Frequency of the channel in MHz
4679 * @duration: Duration of the stay on the channel in milliseconds
4681 * This callback is called when the driver indicates that it has started the
4682 * requested remain-on-channel duration.
4684 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4685 unsigned int freq, unsigned int duration)
4687 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4689 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4690 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4691 wpa_s->pending_listen_duration);
4692 wpa_s->pending_listen_freq = 0;
4697 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
4698 unsigned int timeout)
4700 /* Limit maximum Listen state time based on driver limitation. */
4701 if (timeout > wpa_s->max_remain_on_chan)
4702 timeout = wpa_s->max_remain_on_chan;
4704 return p2p_listen(wpa_s->global->p2p, timeout);
4709 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4710 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4711 * @freq: Frequency of the channel in MHz
4713 * This callback is called when the driver indicates that a remain-on-channel
4714 * operation has been completed, i.e., the duration on the requested channel
4717 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4720 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
4721 "(p2p_long_listen=%d ms pending_action_tx=%p)",
4722 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
4723 wpas_p2p_listen_work_done(wpa_s);
4724 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4726 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4727 return; /* P2P module started a new operation */
4728 if (offchannel_pending_action_tx(wpa_s))
4730 if (wpa_s->p2p_long_listen > 0)
4731 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
4732 if (wpa_s->p2p_long_listen > 0) {
4733 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
4734 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
4737 * When listen duration is over, stop listen & update p2p_state
4740 p2p_stop_listen(wpa_s->global->p2p);
4746 * wpas_p2p_group_remove - Remove a P2P group
4747 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4748 * @ifname: Network interface name of the group interface or "*" to remove all
4750 * Returns: 0 on success, -1 on failure
4752 * This function is used to remove a P2P group. This can be used to disconnect
4753 * from a group in which the local end is a P2P Client or to end a P2P Group in
4754 * case the local end is the Group Owner. If a virtual network interface was
4755 * created for this group, that interface will be removed. Otherwise, only the
4756 * configured P2P group network will be removed from the interface.
4758 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
4760 struct wpa_global *global = wpa_s->global;
4762 if (os_strcmp(ifname, "*") == 0) {
4763 struct wpa_supplicant *prev;
4764 wpa_s = global->ifaces;
4767 wpa_s = wpa_s->next;
4768 if (prev->p2p_group_interface !=
4769 NOT_P2P_GROUP_INTERFACE ||
4770 (prev->current_ssid &&
4771 prev->current_ssid->p2p_group))
4772 wpas_p2p_disconnect(prev);
4777 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4778 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4782 return wpas_p2p_disconnect(wpa_s);
4786 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
4791 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
4793 if (wpa_s->best_24_freq > 0 &&
4794 p2p_supported_freq_go(wpa_s->global->p2p,
4795 wpa_s->best_24_freq)) {
4796 freq = wpa_s->best_24_freq;
4797 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
4798 "channel: %d MHz", freq);
4800 os_get_random((u8 *) &r, sizeof(r));
4801 freq = 2412 + (r % 3) * 25;
4802 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
4803 "channel: %d MHz", freq);
4808 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
4810 if (wpa_s->best_5_freq > 0 &&
4811 p2p_supported_freq_go(wpa_s->global->p2p,
4812 wpa_s->best_5_freq)) {
4813 freq = wpa_s->best_5_freq;
4814 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
4815 "channel: %d MHz", freq);
4817 os_get_random((u8 *) &r, sizeof(r));
4818 freq = 5180 + (r % 4) * 20;
4819 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4820 wpa_printf(MSG_DEBUG, "P2P: Could not select "
4821 "5 GHz channel for P2P group");
4824 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
4825 "channel: %d MHz", freq);
4829 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4830 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
4831 "(%u MHz) is not supported for P2P uses",
4840 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
4841 struct p2p_go_neg_results *params,
4842 int freq, int ht40, int vht,
4843 const struct p2p_channels *channels)
4846 unsigned int pref_freq;
4847 unsigned int num, i;
4849 os_memset(params, 0, sizeof(*params));
4850 params->role_go = 1;
4851 params->ht40 = ht40;
4854 if (!freq_included(channels, freq)) {
4855 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
4859 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
4860 "frequency %d MHz", freq);
4861 params->freq = freq;
4862 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
4863 wpa_s->conf->p2p_oper_channel >= 1 &&
4864 wpa_s->conf->p2p_oper_channel <= 11 &&
4865 freq_included(channels,
4866 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
4867 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
4868 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
4869 "frequency %d MHz", params->freq);
4870 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
4871 wpa_s->conf->p2p_oper_reg_class == 116 ||
4872 wpa_s->conf->p2p_oper_reg_class == 117 ||
4873 wpa_s->conf->p2p_oper_reg_class == 124 ||
4874 wpa_s->conf->p2p_oper_reg_class == 126 ||
4875 wpa_s->conf->p2p_oper_reg_class == 127) &&
4876 freq_included(channels,
4877 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
4878 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
4879 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
4880 "frequency %d MHz", params->freq);
4881 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4882 wpa_s->best_overall_freq > 0 &&
4883 p2p_supported_freq_go(wpa_s->global->p2p,
4884 wpa_s->best_overall_freq) &&
4885 freq_included(channels, wpa_s->best_overall_freq)) {
4886 params->freq = wpa_s->best_overall_freq;
4887 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
4888 "channel %d MHz", params->freq);
4889 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4890 wpa_s->best_24_freq > 0 &&
4891 p2p_supported_freq_go(wpa_s->global->p2p,
4892 wpa_s->best_24_freq) &&
4893 freq_included(channels, wpa_s->best_24_freq)) {
4894 params->freq = wpa_s->best_24_freq;
4895 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
4896 "channel %d MHz", params->freq);
4897 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4898 wpa_s->best_5_freq > 0 &&
4899 p2p_supported_freq_go(wpa_s->global->p2p,
4900 wpa_s->best_5_freq) &&
4901 freq_included(channels, wpa_s->best_5_freq)) {
4902 params->freq = wpa_s->best_5_freq;
4903 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
4904 "channel %d MHz", params->freq);
4905 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
4907 params->freq = pref_freq;
4908 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
4909 "channels", params->freq);
4912 for (chan = 0; chan < 11; chan++) {
4913 params->freq = 2412 + chan * 5;
4914 if (!wpas_p2p_disallowed_freq(wpa_s->global,
4916 freq_included(channels, params->freq))
4920 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
4924 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
4925 "known)", params->freq);
4928 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
4932 res = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4933 wpa_s->num_multichan_concurrent);
4940 for (i = 0; i < num; i++) {
4941 if (freq && freqs[i] == freq)
4943 if (!freq && freq_included(channels, freqs[i])) {
4944 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
4946 params->freq = freqs[i];
4952 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
4954 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
4956 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
4959 } else if (num == 0) {
4960 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
4962 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
4971 static struct wpa_supplicant *
4972 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
4975 struct wpa_supplicant *group_wpa_s;
4977 if (!wpas_p2p_create_iface(wpa_s)) {
4978 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
4980 wpa_s->p2p_first_connection_timeout = 0;
4984 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
4985 WPA_IF_P2P_CLIENT) < 0) {
4986 wpa_msg_global(wpa_s, MSG_ERROR,
4987 "P2P: Failed to add group interface");
4990 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
4991 if (group_wpa_s == NULL) {
4992 wpa_msg_global(wpa_s, MSG_ERROR,
4993 "P2P: Failed to initialize group interface");
4994 wpas_p2p_remove_pending_group_interface(wpa_s);
4998 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
4999 group_wpa_s->ifname);
5000 group_wpa_s->p2p_first_connection_timeout = 0;
5006 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5007 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5008 * @persistent_group: Whether to create a persistent group
5009 * @freq: Frequency for the group or 0 to indicate no hardcoding
5010 * @ht40: Start GO with 40 MHz channel width
5011 * @vht: Start GO with VHT support
5012 * Returns: 0 on success, -1 on failure
5014 * This function creates a new P2P group with the local end as the Group Owner,
5015 * i.e., without using Group Owner Negotiation.
5017 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5018 int freq, int ht40, int vht)
5020 struct p2p_go_neg_results params;
5022 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5025 os_free(wpa_s->global->add_psk);
5026 wpa_s->global->add_psk = NULL;
5028 /* Make sure we are not running find during connection establishment */
5029 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5030 wpas_p2p_stop_find_oper(wpa_s);
5032 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5036 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5039 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5040 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
5041 "(%u MHz) is not supported for P2P uses",
5045 p2p_go_params(wpa_s->global->p2p, ¶ms);
5046 params.persistent_group = persistent_group;
5048 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5051 wpas_start_wps_go(wpa_s, ¶ms, 0);
5057 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5058 struct wpa_ssid *params, int addr_allocated)
5060 struct wpa_ssid *ssid;
5062 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5065 wpa_s->p2p_last_4way_hs_fail = NULL;
5067 wpa_supplicant_ap_deinit(wpa_s);
5069 ssid = wpa_config_add_network(wpa_s->conf);
5072 wpa_config_set_network_defaults(ssid);
5073 ssid->temporary = 1;
5074 ssid->proto = WPA_PROTO_RSN;
5075 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5076 ssid->group_cipher = WPA_CIPHER_CCMP;
5077 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5078 ssid->ssid = os_malloc(params->ssid_len);
5079 if (ssid->ssid == NULL) {
5080 wpa_config_remove_network(wpa_s->conf, ssid->id);
5083 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5084 ssid->ssid_len = params->ssid_len;
5085 ssid->p2p_group = 1;
5086 ssid->export_keys = 1;
5087 if (params->psk_set) {
5088 os_memcpy(ssid->psk, params->psk, 32);
5091 if (params->passphrase)
5092 ssid->passphrase = os_strdup(params->passphrase);
5094 wpa_s->show_group_started = 1;
5096 wpa_supplicant_select_network(wpa_s, ssid);
5102 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5103 struct wpa_ssid *ssid, int addr_allocated,
5104 int freq, int ht40, int vht,
5105 const struct p2p_channels *channels,
5106 int connection_timeout)
5108 struct p2p_go_neg_results params;
5111 if (ssid->disabled != 2 || ssid->ssid == NULL)
5114 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5115 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5116 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5121 os_free(wpa_s->global->add_psk);
5122 wpa_s->global->add_psk = NULL;
5124 /* Make sure we are not running find during connection establishment */
5125 wpas_p2p_stop_find_oper(wpa_s);
5127 wpa_s->p2p_fallback_to_go_neg = 0;
5129 if (ssid->mode == WPAS_MODE_INFRA)
5130 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
5132 if (ssid->mode != WPAS_MODE_P2P_GO)
5135 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5139 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5143 params.psk_set = ssid->psk_set;
5145 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5146 if (ssid->passphrase) {
5147 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5148 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5149 "persistent group");
5152 os_strlcpy(params.passphrase, ssid->passphrase,
5153 sizeof(params.passphrase));
5155 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5156 params.ssid_len = ssid->ssid_len;
5157 params.persistent_group = 1;
5159 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5163 wpa_s->p2p_first_connection_timeout = connection_timeout;
5164 wpas_start_wps_go(wpa_s, ¶ms, 0);
5170 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5171 struct wpabuf *proberesp_ies)
5173 struct wpa_supplicant *wpa_s = ctx;
5174 if (wpa_s->ap_iface) {
5175 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5176 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5177 wpabuf_free(beacon_ies);
5178 wpabuf_free(proberesp_ies);
5182 wpabuf_free(hapd->p2p_beacon_ie);
5183 hapd->p2p_beacon_ie = beacon_ies;
5185 wpabuf_free(hapd->p2p_probe_resp_ie);
5186 hapd->p2p_probe_resp_ie = proberesp_ies;
5188 wpabuf_free(beacon_ies);
5189 wpabuf_free(proberesp_ies);
5191 wpa_supplicant_ap_update_beacon(wpa_s);
5195 static void wpas_p2p_idle_update(void *ctx, int idle)
5197 struct wpa_supplicant *wpa_s = ctx;
5198 if (!wpa_s->ap_iface)
5200 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5202 if (wpa_s->global->p2p_fail_on_wps_complete &&
5203 wpa_s->p2p_in_provisioning) {
5204 wpas_p2p_grpform_fail_after_wps(wpa_s);
5207 wpas_p2p_set_group_idle_timeout(wpa_s);
5209 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5213 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5214 struct wpa_ssid *ssid)
5216 struct p2p_group *group;
5217 struct p2p_group_config *cfg;
5219 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5222 cfg = os_zalloc(sizeof(*cfg));
5226 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5227 cfg->persistent_group = 2;
5228 else if (ssid->p2p_persistent_group)
5229 cfg->persistent_group = 1;
5230 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5231 if (wpa_s->max_stations &&
5232 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5233 cfg->max_clients = wpa_s->max_stations;
5235 cfg->max_clients = wpa_s->conf->max_num_sta;
5236 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5237 cfg->ssid_len = ssid->ssid_len;
5238 cfg->freq = ssid->frequency;
5239 cfg->cb_ctx = wpa_s;
5240 cfg->ie_update = wpas_p2p_ie_update;
5241 cfg->idle_update = wpas_p2p_idle_update;
5243 group = p2p_group_init(wpa_s->global->p2p, cfg);
5246 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5247 p2p_group_notif_formation_done(group);
5248 wpa_s->p2p_group = group;
5253 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5256 struct wpa_ssid *ssid = wpa_s->current_ssid;
5258 if (!wpa_s->p2p_in_provisioning) {
5259 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5260 "provisioning not in progress");
5264 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5265 u8 go_dev_addr[ETH_ALEN];
5266 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5267 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5269 /* Clear any stored provisioning info */
5270 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5273 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5275 wpa_s->p2p_go_group_formation_completed = 1;
5276 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5278 * Use a separate timeout for initial data connection to
5279 * complete to allow the group to be removed automatically if
5280 * something goes wrong in this step before the P2P group idle
5281 * timeout mechanism is taken into use.
5283 wpa_dbg(wpa_s, MSG_DEBUG,
5284 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5285 P2P_MAX_INITIAL_CONN_WAIT);
5286 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5287 wpas_p2p_group_formation_timeout,
5288 wpa_s->parent, NULL);
5291 * Use a separate timeout for initial data connection to
5292 * complete to allow the group to be removed automatically if
5293 * the client does not complete data connection successfully.
5295 wpa_dbg(wpa_s, MSG_DEBUG,
5296 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5297 P2P_MAX_INITIAL_CONN_WAIT_GO);
5298 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5299 wpas_p2p_group_formation_timeout,
5300 wpa_s->parent, NULL);
5302 * Complete group formation on first successful data connection
5304 wpa_s->p2p_go_group_formation_completed = 0;
5306 if (wpa_s->global->p2p)
5307 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5308 wpas_group_formation_completed(wpa_s, 1);
5312 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5313 struct wps_event_fail *fail)
5315 if (!wpa_s->p2p_in_provisioning) {
5316 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5317 "provisioning not in progress");
5321 if (wpa_s->go_params) {
5322 p2p_clear_provisioning_info(
5324 wpa_s->go_params->peer_device_addr);
5327 wpas_notify_p2p_wps_failed(wpa_s, fail);
5329 if (wpa_s == wpa_s->global->p2p_group_formation) {
5331 * Allow some time for the failed WPS negotiation exchange to
5332 * complete, but remove the group since group formation cannot
5333 * succeed after provisioning failure.
5335 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5336 wpa_s->global->p2p_fail_on_wps_complete = 1;
5337 eloop_deplete_timeout(0, 50000,
5338 wpas_p2p_group_formation_timeout,
5339 wpa_s->parent, NULL);
5344 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5346 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5347 !wpa_s->p2p_in_provisioning)
5350 wpas_p2p_grpform_fail_after_wps(wpa_s);
5356 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5357 const char *config_method,
5358 enum wpas_p2p_prov_disc_use use)
5362 wpa_s->p2p_fallback_to_go_neg = 0;
5363 wpa_s->pending_pd_use = NORMAL_PD;
5364 if (os_strncmp(config_method, "display", 7) == 0)
5365 config_methods = WPS_CONFIG_DISPLAY;
5366 else if (os_strncmp(config_method, "keypad", 6) == 0)
5367 config_methods = WPS_CONFIG_KEYPAD;
5368 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5369 os_strncmp(config_method, "pushbutton", 10) == 0)
5370 config_methods = WPS_CONFIG_PUSHBUTTON;
5372 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5376 if (use == WPAS_P2P_PD_AUTO) {
5377 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5378 wpa_s->pending_pd_config_methods = config_methods;
5379 wpa_s->p2p_auto_pd = 1;
5380 wpa_s->p2p_auto_join = 0;
5381 wpa_s->pending_pd_before_join = 0;
5382 wpa_s->auto_pd_scan_retry = 0;
5383 wpas_p2p_stop_find(wpa_s);
5384 wpa_s->p2p_join_scan_count = 0;
5385 os_get_reltime(&wpa_s->p2p_auto_started);
5386 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5387 wpa_s->p2p_auto_started.sec,
5388 wpa_s->p2p_auto_started.usec);
5389 wpas_p2p_join_scan(wpa_s, NULL);
5393 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
5396 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
5397 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5402 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5405 return p2p_scan_result_text(ies, ies_len, buf, end);
5409 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5411 if (!offchannel_pending_action_tx(wpa_s))
5414 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5415 "operation request");
5416 offchannel_clear_pending_action_tx(wpa_s);
5420 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
5421 enum p2p_discovery_type type,
5422 unsigned int num_req_dev_types, const u8 *req_dev_types,
5423 const u8 *dev_id, unsigned int search_delay)
5425 wpas_p2p_clear_pending_action_tx(wpa_s);
5426 wpa_s->p2p_long_listen = 0;
5428 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
5429 wpa_s->p2p_in_provisioning)
5432 wpa_supplicant_cancel_sched_scan(wpa_s);
5434 return p2p_find(wpa_s->global->p2p, timeout, type,
5435 num_req_dev_types, req_dev_types, dev_id,
5440 static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
5442 wpas_p2p_clear_pending_action_tx(wpa_s);
5443 wpa_s->p2p_long_listen = 0;
5444 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5445 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5447 if (wpa_s->global->p2p)
5448 p2p_stop_find(wpa_s->global->p2p);
5454 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5456 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
5458 wpas_p2p_remove_pending_group_interface(wpa_s);
5462 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5464 struct wpa_supplicant *wpa_s = eloop_ctx;
5465 wpa_s->p2p_long_listen = 0;
5469 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5473 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5476 wpa_supplicant_cancel_sched_scan(wpa_s);
5477 wpas_p2p_clear_pending_action_tx(wpa_s);
5481 * This is a request for unlimited Listen state. However, at
5482 * least for now, this is mapped to a Listen state for one
5487 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5488 wpa_s->p2p_long_listen = 0;
5491 * Stop previous find/listen operation to avoid trying to request a new
5492 * remain-on-channel operation while the driver is still running the
5495 if (wpa_s->global->p2p)
5496 p2p_stop_find(wpa_s->global->p2p);
5498 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5499 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
5500 wpa_s->p2p_long_listen = timeout * 1000;
5501 eloop_register_timeout(timeout, 0,
5502 wpas_p2p_long_listen_timeout,
5510 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
5511 u8 *buf, size_t len, int p2p_group)
5513 struct wpabuf *p2p_ie;
5516 if (wpa_s->global->p2p_disabled)
5518 if (wpa_s->global->p2p == NULL)
5523 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5524 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5526 wpabuf_free(p2p_ie);
5532 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
5533 const u8 *dst, const u8 *bssid,
5534 const u8 *ie, size_t ie_len, int ssi_signal)
5536 if (wpa_s->global->p2p_disabled)
5538 if (wpa_s->global->p2p == NULL)
5541 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5543 case P2P_PREQ_NOT_P2P:
5544 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5547 case P2P_PREQ_MALFORMED:
5548 case P2P_PREQ_NOT_LISTEN:
5549 case P2P_PREQ_NOT_PROCESSED:
5550 default: /* make gcc happy */
5552 case P2P_PREQ_PROCESSED:
5558 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5559 const u8 *sa, const u8 *bssid,
5560 u8 category, const u8 *data, size_t len, int freq)
5562 if (wpa_s->global->p2p_disabled)
5564 if (wpa_s->global->p2p == NULL)
5567 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
5572 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
5574 if (wpa_s->global->p2p_disabled)
5576 if (wpa_s->global->p2p == NULL)
5579 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
5583 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
5585 p2p_group_deinit(wpa_s->p2p_group);
5586 wpa_s->p2p_group = NULL;
5588 wpa_s->ap_configured_cb = NULL;
5589 wpa_s->ap_configured_cb_ctx = NULL;
5590 wpa_s->ap_configured_cb_data = NULL;
5591 wpa_s->connect_without_scan = NULL;
5595 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
5597 wpa_s->p2p_long_listen = 0;
5599 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5602 return p2p_reject(wpa_s->global->p2p, addr);
5606 /* Invite to reinvoke a persistent group */
5607 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5608 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
5609 int ht40, int vht, int pref_freq)
5611 enum p2p_invite_role role;
5615 int no_pref_freq_given = pref_freq == 0;
5617 wpa_s->global->p2p_invite_group = NULL;
5619 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5621 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
5623 wpa_s->p2p_persistent_go_freq = freq;
5624 wpa_s->p2p_go_ht40 = !!ht40;
5625 if (ssid->mode == WPAS_MODE_P2P_GO) {
5626 role = P2P_INVITE_ROLE_GO;
5627 if (peer_addr == NULL) {
5628 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
5629 "address in invitation command");
5632 if (wpas_p2p_create_iface(wpa_s)) {
5633 if (wpas_p2p_add_group_interface(wpa_s,
5634 WPA_IF_P2P_GO) < 0) {
5635 wpa_printf(MSG_ERROR, "P2P: Failed to "
5636 "allocate a new interface for the "
5640 bssid = wpa_s->pending_interface_addr;
5642 bssid = wpa_s->own_addr;
5644 role = P2P_INVITE_ROLE_CLIENT;
5645 peer_addr = ssid->bssid;
5647 wpa_s->pending_invite_ssid_id = ssid->id;
5649 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5650 role == P2P_INVITE_ROLE_GO);
5654 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5657 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
5658 no_pref_freq_given && pref_freq > 0 &&
5659 wpa_s->num_multichan_concurrent > 1 &&
5660 wpas_p2p_num_unused_channels(wpa_s) > 0) {
5661 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
5666 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
5667 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
5672 /* Invite to join an active group */
5673 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
5674 const u8 *peer_addr, const u8 *go_dev_addr)
5676 struct wpa_global *global = wpa_s->global;
5677 enum p2p_invite_role role;
5679 struct wpa_ssid *ssid;
5681 int freq = 0, force_freq = 0, pref_freq = 0;
5684 wpa_s->p2p_persistent_go_freq = 0;
5685 wpa_s->p2p_go_ht40 = 0;
5686 wpa_s->p2p_go_vht = 0;
5688 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5689 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5692 if (wpa_s == NULL) {
5693 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
5697 ssid = wpa_s->current_ssid;
5699 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
5704 wpa_s->global->p2p_invite_group = wpa_s;
5705 persistent = ssid->p2p_persistent_group &&
5706 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
5707 ssid->ssid, ssid->ssid_len);
5709 if (ssid->mode == WPAS_MODE_P2P_GO) {
5710 role = P2P_INVITE_ROLE_ACTIVE_GO;
5711 bssid = wpa_s->own_addr;
5712 if (go_dev_addr == NULL)
5713 go_dev_addr = wpa_s->global->p2p_dev_addr;
5714 freq = ssid->frequency;
5716 role = P2P_INVITE_ROLE_CLIENT;
5717 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
5718 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
5719 "invite to current group");
5722 bssid = wpa_s->bssid;
5723 if (go_dev_addr == NULL &&
5724 !is_zero_ether_addr(wpa_s->go_dev_addr))
5725 go_dev_addr = wpa_s->go_dev_addr;
5726 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
5727 (int) wpa_s->assoc_freq;
5729 wpa_s->parent->pending_invite_ssid_id = -1;
5731 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5734 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5735 role == P2P_INVITE_ROLE_ACTIVE_GO);
5738 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
5740 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
5741 ssid->ssid, ssid->ssid_len, force_freq,
5742 go_dev_addr, persistent, pref_freq);
5746 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
5748 struct wpa_ssid *ssid = wpa_s->current_ssid;
5749 const char *ssid_txt;
5750 u8 go_dev_addr[ETH_ALEN];
5751 int network_id = -1;
5755 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
5756 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5757 wpa_s->parent, NULL);
5760 if (!wpa_s->show_group_started || !ssid)
5763 wpa_s->show_group_started = 0;
5765 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
5766 os_memset(go_dev_addr, 0, ETH_ALEN);
5767 if (ssid->bssid_set)
5768 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
5769 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5771 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
5773 if (wpa_s->global->p2p_group_formation == wpa_s)
5774 wpa_s->global->p2p_group_formation = NULL;
5776 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
5777 (int) wpa_s->assoc_freq;
5778 if (ssid->passphrase == NULL && ssid->psk_set) {
5780 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
5781 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
5782 "%s client ssid=\"%s\" freq=%d psk=%s "
5783 "go_dev_addr=" MACSTR "%s",
5784 wpa_s->ifname, ssid_txt, freq, psk,
5785 MAC2STR(go_dev_addr),
5786 persistent ? " [PERSISTENT]" : "");
5788 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
5789 "%s client ssid=\"%s\" freq=%d "
5790 "passphrase=\"%s\" go_dev_addr=" MACSTR "%s",
5791 wpa_s->ifname, ssid_txt, freq,
5792 ssid->passphrase ? ssid->passphrase : "",
5793 MAC2STR(go_dev_addr),
5794 persistent ? " [PERSISTENT]" : "");
5798 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
5801 network_id = ssid->id;
5802 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
5806 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
5807 u32 interval1, u32 duration2, u32 interval2)
5811 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5814 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
5815 wpa_s->current_ssid == NULL ||
5816 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
5819 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
5820 wpa_s->own_addr, wpa_s->assoc_freq,
5821 duration1, interval1, duration2, interval2);
5823 wpa_s->waiting_presence_resp = 1;
5829 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
5830 unsigned int interval)
5832 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5835 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
5839 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
5841 if (wpa_s->current_ssid == NULL) {
5843 * current_ssid can be cleared when P2P client interface gets
5844 * disconnected, so assume this interface was used as P2P
5849 return wpa_s->current_ssid->p2p_group &&
5850 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
5854 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
5856 struct wpa_supplicant *wpa_s = eloop_ctx;
5858 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
5859 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
5864 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
5866 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
5870 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
5874 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5875 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
5877 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5880 timeout = wpa_s->conf->p2p_group_idle;
5881 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
5882 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
5883 timeout = P2P_MAX_CLIENT_IDLE;
5889 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
5890 timeout = 0; /* special client mode no-timeout */
5895 if (wpa_s->p2p_in_provisioning) {
5897 * Use the normal group formation timeout during the
5898 * provisioning phase to avoid terminating this process too
5899 * early due to group idle timeout.
5901 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
5902 "during provisioning");
5906 if (wpa_s->show_group_started) {
5908 * Use the normal group formation timeout between the end of
5909 * the provisioning phase and completion of 4-way handshake to
5910 * avoid terminating this process too early due to group idle
5913 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
5914 "while waiting for initial 4-way handshake to "
5919 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
5921 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
5926 /* Returns 1 if the interface was removed */
5927 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
5928 u16 reason_code, const u8 *ie, size_t ie_len,
5929 int locally_generated)
5931 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5934 if (!locally_generated)
5935 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
5938 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
5939 wpa_s->current_ssid &&
5940 wpa_s->current_ssid->p2p_group &&
5941 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
5942 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
5943 "session is ending");
5944 if (wpas_p2p_group_delete(wpa_s,
5945 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
5954 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
5955 u16 reason_code, const u8 *ie, size_t ie_len,
5956 int locally_generated)
5958 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5961 if (!locally_generated)
5962 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
5967 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
5969 struct p2p_data *p2p = wpa_s->global->p2p;
5974 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
5977 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
5978 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
5980 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
5981 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
5984 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
5985 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
5987 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
5988 p2p_set_uuid(p2p, wpa_s->wps->uuid);
5990 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
5991 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
5992 p2p_set_model_name(p2p, wpa_s->conf->model_name);
5993 p2p_set_model_number(p2p, wpa_s->conf->model_number);
5994 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
5997 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
5998 p2p_set_sec_dev_types(p2p,
5999 (void *) wpa_s->conf->sec_device_type,
6000 wpa_s->conf->num_sec_device_types);
6002 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6004 p2p_remove_wps_vendor_extensions(p2p);
6005 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6006 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6008 p2p_add_wps_vendor_extension(
6009 p2p, wpa_s->conf->wps_vendor_ext[i]);
6013 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6014 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6016 country[0] = wpa_s->conf->country[0];
6017 country[1] = wpa_s->conf->country[1];
6019 p2p_set_country(p2p, country);
6022 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6023 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6024 wpa_s->conf->p2p_ssid_postfix ?
6025 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6029 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6030 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6032 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6033 u8 reg_class, channel;
6036 if (wpa_s->conf->p2p_listen_reg_class &&
6037 wpa_s->conf->p2p_listen_channel) {
6038 reg_class = wpa_s->conf->p2p_listen_reg_class;
6039 channel = wpa_s->conf->p2p_listen_channel;
6043 * Pick one of the social channels randomly as the
6046 os_get_random((u8 *) &r, sizeof(r));
6047 channel = 1 + (r % 3) * 5;
6049 ret = p2p_set_listen_channel(p2p, reg_class, channel);
6051 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6054 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6055 u8 op_reg_class, op_channel, cfg_op_channel;
6058 if (wpa_s->conf->p2p_oper_reg_class &&
6059 wpa_s->conf->p2p_oper_channel) {
6060 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6061 op_channel = wpa_s->conf->p2p_oper_channel;
6066 * Use random operation channel from (1, 6, 11)
6067 *if no other preference is indicated.
6069 os_get_random((u8 *) &r, sizeof(r));
6070 op_channel = 1 + (r % 3) * 5;
6073 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6076 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6080 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6081 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6082 wpa_s->conf->p2p_pref_chan) < 0) {
6083 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6087 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6088 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6095 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6098 if (!wpa_s->ap_iface)
6100 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6105 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6107 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6110 wpa_s->global->cross_connection = enabled;
6111 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6114 struct wpa_supplicant *iface;
6116 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6118 if (iface->cross_connect_enabled == 0)
6121 iface->cross_connect_enabled = 0;
6122 iface->cross_connect_in_use = 0;
6123 wpa_msg_global(iface->parent, MSG_INFO,
6124 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6126 iface->cross_connect_uplink);
6134 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6136 struct wpa_supplicant *iface;
6138 if (!uplink->global->cross_connection)
6141 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6142 if (!iface->cross_connect_enabled)
6144 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6147 if (iface->ap_iface == NULL)
6149 if (iface->cross_connect_in_use)
6152 iface->cross_connect_in_use = 1;
6153 wpa_msg_global(iface->parent, MSG_INFO,
6154 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6155 iface->ifname, iface->cross_connect_uplink);
6160 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6162 struct wpa_supplicant *iface;
6164 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6165 if (!iface->cross_connect_enabled)
6167 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6170 if (!iface->cross_connect_in_use)
6173 wpa_msg_global(iface->parent, MSG_INFO,
6174 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6175 iface->ifname, iface->cross_connect_uplink);
6176 iface->cross_connect_in_use = 0;
6181 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6183 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6184 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6185 wpa_s->cross_connect_disallowed)
6186 wpas_p2p_disable_cross_connect(wpa_s);
6188 wpas_p2p_enable_cross_connect(wpa_s);
6189 if (!wpa_s->ap_iface &&
6190 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6191 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6195 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6197 wpas_p2p_disable_cross_connect(wpa_s);
6198 if (!wpa_s->ap_iface &&
6199 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6201 wpas_p2p_set_group_idle_timeout(wpa_s);
6205 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6207 struct wpa_supplicant *iface;
6209 if (!wpa_s->global->cross_connection)
6212 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6215 if (iface->drv_flags &
6216 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6218 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
6221 wpa_s->cross_connect_enabled = 1;
6222 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6223 sizeof(wpa_s->cross_connect_uplink));
6224 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6225 "%s to %s whenever uplink is available",
6226 wpa_s->ifname, wpa_s->cross_connect_uplink);
6228 if (iface->ap_iface || iface->current_ssid == NULL ||
6229 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6230 iface->cross_connect_disallowed ||
6231 iface->wpa_state != WPA_COMPLETED)
6234 wpa_s->cross_connect_in_use = 1;
6235 wpa_msg_global(wpa_s->parent, MSG_INFO,
6236 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6237 wpa_s->ifname, wpa_s->cross_connect_uplink);
6243 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6245 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6246 !wpa_s->p2p_in_provisioning)
6247 return 0; /* not P2P client operation */
6249 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6251 if (wpa_s != wpa_s->parent)
6252 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6253 wpas_p2p_group_formation_failed(wpa_s);
6258 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6260 struct p2p_channels chan, cli_chan;
6262 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6265 os_memset(&chan, 0, sizeof(chan));
6266 os_memset(&cli_chan, 0, sizeof(cli_chan));
6267 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6268 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6273 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6277 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6278 struct wpa_scan_results *scan_res)
6280 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6284 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6286 struct wpa_global *global = wpa_s->global;
6290 if (global->p2p == NULL)
6293 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6295 if (wpa_s->pending_interface_name[0] &&
6296 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6299 peer = p2p_get_go_neg_peer(global->p2p);
6301 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6302 MACSTR, MAC2STR(peer));
6303 p2p_unauthorize(global->p2p, peer);
6307 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6308 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6309 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6313 if (wpa_s->pending_pd_before_join) {
6314 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6315 wpa_s->pending_pd_before_join = 0;
6319 wpas_p2p_stop_find(wpa_s);
6321 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6322 if (wpa_s == global->p2p_group_formation &&
6323 (wpa_s->p2p_in_provisioning ||
6324 wpa_s->parent->pending_interface_type ==
6325 WPA_IF_P2P_CLIENT)) {
6326 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6327 "formation found - cancelling",
6330 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6331 wpa_s->parent, NULL);
6332 if (wpa_s->p2p_in_provisioning) {
6333 wpas_group_formation_completed(wpa_s, 0);
6336 wpas_p2p_group_delete(wpa_s,
6337 P2P_GROUP_REMOVAL_REQUESTED);
6343 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6351 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6353 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6356 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6357 "being available anymore");
6358 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
6362 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6363 int freq_24, int freq_5, int freq_overall)
6365 struct p2p_data *p2p = wpa_s->global->p2p;
6368 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6372 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6375 struct p2p_data *p2p = wpa_s->global->p2p;
6380 if (hwaddr_aton(addr, peer))
6383 return p2p_unauthorize(p2p, peer);
6388 * wpas_p2p_disconnect - Disconnect from a P2P Group
6389 * @wpa_s: Pointer to wpa_supplicant data
6390 * Returns: 0 on success, -1 on failure
6392 * This can be used to disconnect from a group in which the local end is a P2P
6393 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6394 * virtual network interface was created for this group, that interface will be
6395 * removed. Otherwise, only the configured P2P group network will be removed
6396 * from the interface.
6398 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6404 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6409 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6413 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6416 ret = p2p_in_progress(wpa_s->global->p2p);
6419 * Check whether there is an ongoing WPS provisioning step (or
6420 * other parts of group formation) on another interface since
6421 * p2p_in_progress() does not report this to avoid issues for
6422 * scans during such provisioning step.
6424 if (wpa_s->global->p2p_group_formation &&
6425 wpa_s->global->p2p_group_formation != wpa_s) {
6426 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6427 "in group formation",
6428 wpa_s->global->p2p_group_formation->ifname);
6433 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
6434 struct os_reltime now;
6435 os_get_reltime(&now);
6436 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6437 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
6438 /* Wait for the first client has expired */
6439 wpa_s->global->p2p_go_wait_client.sec = 0;
6441 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6450 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6451 struct wpa_ssid *ssid)
6453 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6454 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6455 wpa_s->parent, NULL) > 0) {
6457 * Remove the network by scheduling the group formation
6458 * timeout to happen immediately. The teardown code
6459 * needs to be scheduled to run asynch later so that we
6460 * don't delete data from under ourselves unexpectedly.
6461 * Calling wpas_p2p_group_formation_timeout directly
6462 * causes a series of crashes in WPS failure scenarios.
6464 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6465 "P2P group network getting removed");
6466 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6467 wpa_s->parent, NULL);
6472 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
6473 const u8 *addr, const u8 *ssid,
6479 for (s = wpa_s->conf->ssid; s; s = s->next) {
6480 if (s->disabled != 2)
6483 (ssid_len != s->ssid_len ||
6484 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6487 if (s->mode == WPAS_MODE_P2P_GO)
6491 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6492 return s; /* peer is GO in the persistent group */
6493 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6495 for (i = 0; i < s->num_p2p_clients; i++) {
6496 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
6497 addr, ETH_ALEN) == 0)
6498 return s; /* peer is P2P client in persistent
6507 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
6510 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6511 wpa_s->parent, NULL) > 0) {
6513 * This can happen if WPS provisioning step is not terminated
6514 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
6515 * peer was able to connect, there is no need to time out group
6516 * formation after this, though. In addition, this is used with
6517 * the initial connection wait on the GO as a separate formation
6518 * timeout and as such, expected to be hit after the initial WPS
6519 * provisioning step.
6521 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
6523 if (!wpa_s->p2p_go_group_formation_completed) {
6524 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
6525 wpa_s->p2p_go_group_formation_completed = 1;
6526 wpa_s->global->p2p_group_formation = NULL;
6527 wpa_s->p2p_in_provisioning = 0;
6529 wpa_s->global->p2p_go_wait_client.sec = 0;
6532 wpas_p2p_add_persistent_group_client(wpa_s, addr);
6536 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
6539 struct wpa_supplicant *group = wpa_s;
6540 if (wpa_s->global->p2p_group_formation)
6541 group = wpa_s->global->p2p_group_formation;
6542 wpa_s = wpa_s->parent;
6543 offchannel_send_action_done(wpa_s);
6545 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
6546 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
6547 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
6548 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
6549 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
6550 wpa_s->p2p_persistent_id,
6551 wpa_s->p2p_pd_before_go_neg,
6557 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
6559 if (!wpa_s->p2p_fallback_to_go_neg ||
6560 wpa_s->p2p_in_provisioning <= 5)
6563 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
6564 return 0; /* peer operating as a GO */
6566 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
6567 "fallback to GO Negotiation");
6568 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
6574 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
6576 struct wpa_supplicant *ifs;
6578 if (wpa_s->wpa_state > WPA_SCANNING) {
6579 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
6580 "concurrent operation",
6581 P2P_CONCURRENT_SEARCH_DELAY);
6582 return P2P_CONCURRENT_SEARCH_DELAY;
6585 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6587 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
6588 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
6589 "delay due to concurrent operation on "
6591 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
6592 return P2P_CONCURRENT_SEARCH_DELAY;
6600 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
6601 struct wpa_ssid *s, const u8 *addr,
6604 struct psk_list_entry *psk, *tmp;
6607 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
6609 if ((iface_addr && !psk->p2p &&
6610 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
6611 (!iface_addr && psk->p2p &&
6612 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
6613 wpa_dbg(wpa_s, MSG_DEBUG,
6614 "P2P: Remove persistent group PSK list entry for "
6616 MAC2STR(psk->addr), psk->p2p);
6617 dl_list_del(&psk->list);
6627 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
6628 const u8 *p2p_dev_addr,
6629 const u8 *psk, size_t psk_len)
6631 struct wpa_ssid *ssid = wpa_s->current_ssid;
6632 struct wpa_ssid *persistent;
6633 struct psk_list_entry *p;
6635 if (psk_len != sizeof(p->psk))
6639 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
6640 " p2p_dev_addr=" MACSTR,
6641 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
6642 if (is_zero_ether_addr(p2p_dev_addr))
6643 p2p_dev_addr = NULL;
6645 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
6649 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
6650 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
6651 /* To be added to persistent group once created */
6652 if (wpa_s->global->add_psk == NULL) {
6653 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
6654 if (wpa_s->global->add_psk == NULL)
6657 p = wpa_s->global->add_psk;
6660 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6663 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6665 os_memcpy(p->psk, psk, psk_len);
6669 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
6670 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
6674 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
6677 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
6681 p = os_zalloc(sizeof(*p));
6686 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6689 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6691 os_memcpy(p->psk, psk, psk_len);
6693 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS) {
6694 struct psk_list_entry *last;
6695 last = dl_list_last(&persistent->psk_list,
6696 struct psk_list_entry, list);
6697 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
6698 MACSTR " (p2p=%u) to make room for a new one",
6699 MAC2STR(last->addr), last->p2p);
6700 dl_list_del(&last->list);
6704 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
6705 p2p_dev_addr ? p2p_dev_addr : mac_addr,
6706 p2p_dev_addr == NULL);
6708 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
6709 MACSTR, MAC2STR(p2p_dev_addr));
6711 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
6714 dl_list_add(&persistent->psk_list, &p->list);
6716 #ifndef CONFIG_NO_CONFIG_WRITE
6717 if (wpa_s->parent->conf->update_config &&
6718 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
6719 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
6720 #endif /* CONFIG_NO_CONFIG_WRITE */
6724 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
6725 struct wpa_ssid *s, const u8 *addr,
6730 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
6732 #ifndef CONFIG_NO_CONFIG_WRITE
6733 if (wpa_s->conf->update_config &&
6734 wpa_config_write(wpa_s->confname, wpa_s->conf))
6735 wpa_dbg(wpa_s, MSG_DEBUG,
6736 "P2P: Failed to update configuration");
6737 #endif /* CONFIG_NO_CONFIG_WRITE */
6742 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
6743 const u8 *peer, int iface_addr)
6745 struct hostapd_data *hapd;
6746 struct hostapd_wpa_psk *psk, *prev, *rem;
6747 struct sta_info *sta;
6749 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
6750 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
6753 /* Remove per-station PSK entry */
6754 hapd = wpa_s->ap_iface->bss[0];
6756 psk = hapd->conf->ssid.wpa_psk;
6758 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
6760 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
6761 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
6762 MACSTR " iface_addr=%d",
6763 MAC2STR(peer), iface_addr);
6765 prev->next = psk->next;
6767 hapd->conf->ssid.wpa_psk = psk->next;
6777 /* Disconnect from group */
6779 sta = ap_get_sta(hapd, peer);
6781 sta = ap_get_sta_p2p(hapd, peer);
6783 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
6784 " (iface_addr=%d) from group",
6785 MAC2STR(peer), iface_addr);
6786 hostapd_drv_sta_deauth(hapd, sta->addr,
6787 WLAN_REASON_DEAUTH_LEAVING);
6788 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
6793 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
6797 struct wpa_supplicant *w;
6799 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
6801 /* Remove from any persistent group */
6802 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
6803 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
6806 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
6807 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
6810 /* Remove from any operating group */
6811 for (w = wpa_s->global->ifaces; w; w = w->next)
6812 wpas_p2p_remove_client_go(w, peer, iface_addr);
6816 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
6818 struct wpa_supplicant *wpa_s = eloop_ctx;
6819 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
6823 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
6825 struct wpa_supplicant *wpa_s = eloop_ctx;
6827 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
6828 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
6832 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
6833 struct wpa_ssid *ssid)
6835 struct wpa_supplicant *iface;
6837 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6838 if (!iface->current_ssid ||
6839 iface->current_ssid->frequency == freq ||
6840 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
6841 !iface->current_ssid->p2p_group))
6844 /* Remove the connection with least priority */
6845 if (!wpas_is_p2p_prioritized(iface)) {
6846 /* STA connection has priority over existing
6847 * P2P connection, so remove the interface. */
6848 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
6849 eloop_register_timeout(0, 0,
6850 wpas_p2p_group_freq_conflict,
6852 /* If connection in progress is P2P connection, do not
6853 * proceed for the connection. */
6859 /* P2P connection has priority, disable the STA network
6861 wpa_supplicant_disable_network(wpa_s->global->ifaces,
6863 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
6864 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
6865 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
6867 /* If P2P connection is in progress, continue
6880 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
6882 struct wpa_ssid *ssid = wpa_s->current_ssid;
6884 if (ssid == NULL || !ssid->p2p_group)
6887 if (wpa_s->p2p_last_4way_hs_fail &&
6888 wpa_s->p2p_last_4way_hs_fail == ssid) {
6889 u8 go_dev_addr[ETH_ALEN];
6890 struct wpa_ssid *persistent;
6892 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
6894 ssid->ssid_len) <= 0) {
6895 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
6899 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
6900 MACSTR, MAC2STR(go_dev_addr));
6901 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
6904 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
6905 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
6908 wpa_msg_global(wpa_s->parent, MSG_INFO,
6909 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
6912 wpa_s->p2p_last_4way_hs_fail = NULL;
6914 * Remove the group from a timeout to avoid issues with caller
6915 * continuing to use the interface if this is on a P2P group
6918 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
6923 wpa_s->p2p_last_4way_hs_fail = ssid;