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/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "rsn_supp/wpa.h"
28 #include "wpa_supplicant_i.h"
31 #include "config_ssid.h"
36 #include "offchannel.h"
37 #include "wps_supplicant.h"
38 #include "p2p_supplicant.h"
39 #include "wifi_display.h"
43 * How many times to try to scan to find the GO before giving up on join
46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
50 #ifndef P2P_MAX_CLIENT_IDLE
52 * How many seconds to try to reconnect to the GO when connection in P2P client
55 #define P2P_MAX_CLIENT_IDLE 10
56 #endif /* P2P_MAX_CLIENT_IDLE */
58 #ifndef P2P_MAX_INITIAL_CONN_WAIT
60 * How many seconds to wait for initial 4-way handshake to get completed after
61 * WPS provisioning step or after the re-invocation of a persistent group on a
64 #define P2P_MAX_INITIAL_CONN_WAIT 10
65 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
67 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
69 * How many seconds to wait for initial 4-way handshake to get completed after
70 * WPS provisioning step on the GO. This controls the extra time the P2P
71 * operation is considered to be in progress (e.g., to delay other scans) after
72 * WPS provisioning has been completed on the GO during group formation.
74 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
75 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
77 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
79 * How many seconds to wait for initial 4-way handshake to get completed after
80 * re-invocation of a persistent group on the GO when the client is expected
81 * to connect automatically (no user interaction).
83 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
84 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
86 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
88 enum p2p_group_removal_reason {
89 P2P_GROUP_REMOVAL_UNKNOWN,
90 P2P_GROUP_REMOVAL_SILENT,
91 P2P_GROUP_REMOVAL_FORMATION_FAILED,
92 P2P_GROUP_REMOVAL_REQUESTED,
93 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
94 P2P_GROUP_REMOVAL_UNAVAILABLE,
95 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
96 P2P_GROUP_REMOVAL_PSK_FAILURE,
97 P2P_GROUP_REMOVAL_FREQ_CONFLICT
101 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
102 static struct wpa_supplicant *
103 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
105 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
106 const u8 *ssid, size_t ssid_len);
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, int freq,
113 const u8 *ssid, size_t ssid_len);
114 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
115 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
116 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
117 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
118 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
120 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
121 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
123 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
124 static void wpas_stop_listen(void *ctx);
125 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
126 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
127 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
128 enum wpa_driver_if_type type);
132 * Get the number of concurrent channels that the HW can operate, but that are
133 * currently not in use by any of the wpa_supplicant interfaces.
135 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
140 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
144 num = get_shared_radio_freqs(wpa_s, freqs,
145 wpa_s->num_multichan_concurrent);
148 unused = wpa_s->num_multichan_concurrent - num;
149 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
155 * Get the frequencies that are currently in use by one or more of the virtual
156 * interfaces, and that are also valid for P2P operation.
159 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
160 struct wpa_used_freq_data *p2p_freqs,
163 struct wpa_used_freq_data *freqs;
164 unsigned int num, i, j;
166 freqs = os_calloc(wpa_s->num_multichan_concurrent,
167 sizeof(struct wpa_used_freq_data));
171 num = get_shared_radio_freqs_data(wpa_s, freqs,
172 wpa_s->num_multichan_concurrent);
174 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
176 for (i = 0, j = 0; i < num && j < len; i++) {
177 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
178 p2p_freqs[j++] = freqs[i];
183 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
189 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
192 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
194 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
195 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
196 wpas_p2p_num_unused_channels(wpa_s) > 0) {
197 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
201 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
205 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
206 struct wpa_scan_results *scan_res)
210 if (wpa_s->p2p_scan_work) {
211 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
212 wpa_s->p2p_scan_work = NULL;
213 radio_work_done(work);
216 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
219 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
220 (int) scan_res->num);
222 for (i = 0; i < scan_res->num; i++) {
223 struct wpa_scan_res *bss = scan_res->res[i];
224 struct os_reltime time_tmp_age, entry_ts;
228 time_tmp_age.sec = bss->age / 1000;
229 time_tmp_age.usec = (bss->age % 1000) * 1000;
230 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
232 ies = (const u8 *) (bss + 1);
233 ies_len = bss->ie_len;
234 if (bss->beacon_ie_len > 0 &&
235 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
236 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
237 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
238 MACSTR, MAC2STR(bss->bssid));
240 ies_len = bss->beacon_ie_len;
244 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
245 bss->freq, &entry_ts, bss->level,
250 p2p_scan_res_handled(wpa_s->global->p2p);
254 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
256 struct wpa_supplicant *wpa_s = work->wpa_s;
257 struct wpa_driver_scan_params *params = work->ctx;
261 if (!work->started) {
262 wpa_scan_free_params(params);
266 wpa_s->p2p_scan_work = NULL;
270 ret = wpa_drv_scan(wpa_s, params);
271 wpa_scan_free_params(params);
274 radio_work_done(work);
275 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
279 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
280 os_get_reltime(&wpa_s->scan_trigger_time);
281 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
282 wpa_s->own_scan_requested = 1;
283 wpa_s->p2p_scan_work = work;
287 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
290 if (wpa_s->global->p2p_24ghz_social_channels &&
291 (freq == 2412 || freq == 2437 || freq == 2462)) {
293 * Search all social channels regardless of whether these have
294 * been disabled for P2P operating channel use to avoid missing
299 return p2p_supported_freq(wpa_s->global->p2p, freq);
303 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
304 unsigned int num_req_dev_types,
305 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
307 struct wpa_supplicant *wpa_s = ctx;
308 struct wpa_driver_scan_params *params = NULL;
309 struct wpabuf *wps_ie, *ies;
310 unsigned int num_channels = 0;
311 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
315 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
318 if (wpa_s->p2p_scan_work) {
319 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
323 params = os_zalloc(sizeof(*params));
327 /* P2P Wildcard SSID */
328 params->num_ssids = 1;
329 n = os_malloc(P2P_WILDCARD_SSID_LEN);
332 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
333 params->ssids[0].ssid = n;
334 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
336 wpa_s->wps->dev.p2p = 1;
337 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
338 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
339 num_req_dev_types, req_dev_types);
343 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
344 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
349 wpabuf_put_buf(ies, wps_ie);
352 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
354 params->p2p_probe = 1;
355 n = os_malloc(wpabuf_len(ies));
360 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
361 params->extra_ies = n;
362 params->extra_ies_len = wpabuf_len(ies);
366 case P2P_SCAN_SOCIAL:
367 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
369 if (params->freqs == NULL)
371 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
372 if (wpas_p2p_search_social_channel(
373 wpa_s, social_channels_freq[i]))
374 params->freqs[num_channels++] =
375 social_channels_freq[i];
377 params->freqs[num_channels++] = 0;
381 case P2P_SCAN_SPECIFIC:
382 params->freqs = os_calloc(2, sizeof(int));
383 if (params->freqs == NULL)
385 params->freqs[0] = freq;
386 params->freqs[1] = 0;
388 case P2P_SCAN_SOCIAL_PLUS_ONE:
389 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
391 if (params->freqs == NULL)
393 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
394 if (wpas_p2p_search_social_channel(
395 wpa_s, social_channels_freq[i]))
396 params->freqs[num_channels++] =
397 social_channels_freq[i];
399 if (p2p_supported_freq(wpa_s->global->p2p, freq))
400 params->freqs[num_channels++] = freq;
401 params->freqs[num_channels++] = 0;
405 radio_remove_works(wpa_s, "p2p-scan", 0);
406 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
412 wpa_scan_free_params(params);
417 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
419 switch (p2p_group_interface) {
420 case P2P_GROUP_INTERFACE_PENDING:
421 return WPA_IF_P2P_GROUP;
422 case P2P_GROUP_INTERFACE_GO:
423 return WPA_IF_P2P_GO;
424 case P2P_GROUP_INTERFACE_CLIENT:
425 return WPA_IF_P2P_CLIENT;
428 return WPA_IF_P2P_GROUP;
432 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
434 size_t ssid_len, int *go)
438 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
439 for (s = wpa_s->conf->ssid; s; s = s->next) {
440 if (s->disabled != 0 || !s->p2p_group ||
441 s->ssid_len != ssid_len ||
442 os_memcmp(ssid, s->ssid, ssid_len) != 0)
444 if (s->mode == WPAS_MODE_P2P_GO &&
445 s != wpa_s->current_ssid)
448 *go = s->mode == WPAS_MODE_P2P_GO;
457 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
459 struct wpa_supplicant *wpa_s = eloop_ctx;
460 wpa_printf(MSG_DEBUG,
461 "P2P: Complete previously requested removal of %s",
463 wpas_p2p_disconnect(wpa_s);
467 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
468 struct wpa_supplicant *calling_wpa_s)
470 if (calling_wpa_s == wpa_s && wpa_s &&
471 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
473 * The calling wpa_s instance is going to be removed. Do that
474 * from an eloop callback to keep the instance available until
475 * the caller has returned. This my be needed, e.g., to provide
476 * control interface responses on the per-interface socket.
478 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
484 return wpas_p2p_disconnect(wpa_s);
488 /* Determine total number of clients in active groups where we are the GO */
489 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
491 unsigned int count = 0;
494 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
495 for (s = wpa_s->conf->ssid; s; s = s->next) {
496 wpa_printf(MSG_DEBUG,
497 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
498 wpa_s, s, s->disabled, s->p2p_group,
500 if (!s->disabled && s->p2p_group &&
501 s->mode == WPAS_MODE_P2P_GO) {
502 count += p2p_get_group_num_members(
512 /* Find an interface for a P2P group where we are the GO */
513 static struct wpa_supplicant *
514 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
516 struct wpa_supplicant *save = NULL;
522 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
523 for (s = wpa_s->conf->ssid; s; s = s->next) {
524 if (s->disabled || !s->p2p_group ||
525 s->mode != WPAS_MODE_P2P_GO)
528 /* Prefer a group with connected clients */
529 if (p2p_get_group_num_members(wpa_s->p2p_group))
535 /* No group with connected clients, so pick the one without (if any) */
540 /* Find an active P2P group where we are the GO */
541 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
544 struct wpa_ssid *s, *empty = NULL;
549 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
550 for (s = wpa_s->conf->ssid; s; s = s->next) {
551 if (s->disabled || !s->p2p_group ||
552 s->mode != WPAS_MODE_P2P_GO)
555 os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
556 if (p2p_get_group_num_members(wpa_s->p2p_group))
566 /* Find a persistent group where we are the GO */
567 static struct wpa_ssid *
568 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
572 for (s = wpa_s->conf->ssid; s; s = s->next) {
573 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
581 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
583 struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
585 u8 conncap = P2PS_SETUP_NONE;
586 unsigned int owned_members = 0;
587 unsigned int owner = 0;
588 unsigned int client = 0;
589 struct wpa_supplicant *go_wpa_s;
590 struct wpa_ssid *persistent_go;
591 int p2p_no_group_iface;
593 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
596 * For non-concurrent capable devices:
597 * If persistent_go, then no new.
598 * If GO, then no client.
599 * If client, then no GO.
601 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
602 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
603 p2p_no_group_iface = wpa_s->conf->p2p_no_group_iface;
605 wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
606 go_wpa_s, persistent_go);
608 for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
609 tmp_wpa_s = tmp_wpa_s->next) {
610 for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
611 wpa_printf(MSG_DEBUG,
612 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
613 tmp_wpa_s, s, s->disabled,
614 s->p2p_group, s->mode);
615 if (!s->disabled && s->p2p_group) {
616 if (s->mode == WPAS_MODE_P2P_GO) {
618 p2p_get_group_num_members(
619 tmp_wpa_s->p2p_group);
627 /* If not concurrent, restrict our choices */
628 if (p2p_no_group_iface) {
629 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
632 return P2PS_SETUP_NONE;
635 if (role == P2PS_SETUP_CLIENT ||
636 incoming == P2PS_SETUP_GROUP_OWNER ||
637 p2p_client_limit_reached(go_wpa_s->p2p_group))
638 return P2PS_SETUP_NONE;
640 return P2PS_SETUP_GROUP_OWNER;
644 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
646 return P2PS_SETUP_GROUP_OWNER |
648 if (incoming == P2PS_SETUP_NEW) {
651 if (os_get_random(&r, sizeof(r)) < 0 ||
653 return P2PS_SETUP_CLIENT;
654 return P2PS_SETUP_GROUP_OWNER;
660 /* If a required role has been specified, handle it here */
661 if (role && role != P2PS_SETUP_NEW) {
663 case P2PS_SETUP_NONE:
665 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
666 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
670 case P2PS_SETUP_GROUP_OWNER:
672 * Must be a complimentary role - cannot be a client to
673 * more than one peer.
675 if (incoming == role || client)
676 return P2PS_SETUP_NONE;
678 return P2PS_SETUP_CLIENT;
680 case P2PS_SETUP_CLIENT:
681 /* Must be a complimentary role */
682 if (incoming != role) {
683 conncap = P2PS_SETUP_GROUP_OWNER;
688 return P2PS_SETUP_NONE;
693 * For now, we only will support ownership of one group, and being a
694 * client of one group. Therefore, if we have either an existing GO
695 * group, or an existing client group, we will not do a new GO
696 * negotiation, but rather try to re-use the existing groups.
699 case P2PS_SETUP_NONE:
702 conncap = P2PS_SETUP_GROUP_OWNER;
703 else if (!owned_members)
704 conncap = P2PS_SETUP_NEW;
705 else if (incoming == P2PS_SETUP_NONE)
706 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
708 conncap = P2PS_SETUP_CLIENT;
711 case P2PS_SETUP_CLIENT:
712 conncap = P2PS_SETUP_GROUP_OWNER;
715 case P2PS_SETUP_GROUP_OWNER:
717 conncap = P2PS_SETUP_CLIENT;
720 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
721 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
723 conncap = P2PS_SETUP_GROUP_OWNER;
727 if (os_get_random(&r, sizeof(r)) < 0 ||
729 conncap = P2PS_SETUP_CLIENT;
731 conncap = P2PS_SETUP_GROUP_OWNER;
736 return P2PS_SETUP_NONE;
740 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
741 (!incoming && (conncap & P2PS_SETUP_NEW))) {
742 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
743 conncap &= ~P2PS_SETUP_GROUP_OWNER;
744 wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
745 owner, owned_members, conncap);
747 s = wpas_p2p_get_persistent_go(wpa_s);
749 if (!s && !owner && p2p_no_group_iface) {
750 p2p_set_intended_addr(wpa_s->global->p2p,
752 } else if (!s && !owner) {
753 if (wpas_p2p_add_group_interface(wpa_s,
754 WPA_IF_P2P_GO) < 0) {
755 wpa_printf(MSG_ERROR,
756 "P2P: Failed to allocate a new interface for the group");
757 return P2PS_SETUP_NONE;
759 wpa_s->global->pending_group_iface_for_p2ps = 1;
760 p2p_set_intended_addr(wpa_s->global->p2p,
761 wpa_s->pending_interface_addr);
769 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
770 enum p2p_group_removal_reason removal_reason)
772 struct wpa_ssid *ssid;
776 ssid = wpa_s->current_ssid;
779 * The current SSID was not known, but there may still be a
780 * pending P2P group interface waiting for provisioning or a
781 * P2P group that is trying to reconnect.
783 ssid = wpa_s->conf->ssid;
785 if (ssid->p2p_group && ssid->disabled != 2)
790 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
792 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
797 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
799 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
800 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
801 wpa_s->reassociate = 0;
802 wpa_s->disconnected = 1;
807 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
808 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
810 if (os_strcmp(gtype, "client") == 0) {
811 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
812 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
814 wpa_printf(MSG_DEBUG,
815 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
816 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
817 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
822 if (wpa_s->cross_connect_in_use) {
823 wpa_s->cross_connect_in_use = 0;
824 wpa_msg_global(wpa_s->parent, MSG_INFO,
825 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
826 wpa_s->ifname, wpa_s->cross_connect_uplink);
828 switch (removal_reason) {
829 case P2P_GROUP_REMOVAL_REQUESTED:
830 reason = " reason=REQUESTED";
832 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
833 reason = " reason=FORMATION_FAILED";
835 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
836 reason = " reason=IDLE";
838 case P2P_GROUP_REMOVAL_UNAVAILABLE:
839 reason = " reason=UNAVAILABLE";
841 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
842 reason = " reason=GO_ENDING_SESSION";
844 case P2P_GROUP_REMOVAL_PSK_FAILURE:
845 reason = " reason=PSK_FAILURE";
847 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
848 reason = " reason=FREQ_CONFLICT";
854 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
855 wpa_msg_global(wpa_s->parent, MSG_INFO,
856 P2P_EVENT_GROUP_REMOVED "%s %s%s",
857 wpa_s->ifname, gtype, reason);
860 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
861 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
862 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
863 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
864 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
865 wpa_s->parent, NULL) > 0) {
866 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
868 wpa_s->p2p_in_provisioning = 0;
871 wpa_s->p2p_in_invitation = 0;
874 * Make sure wait for the first client does not remain active after the
875 * group has been removed.
877 wpa_s->global->p2p_go_wait_client.sec = 0;
879 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
880 struct wpa_global *global;
882 enum wpa_driver_if_type type;
883 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
885 global = wpa_s->global;
886 ifname = os_strdup(wpa_s->ifname);
887 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
888 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
889 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
890 wpa_s = global->ifaces;
892 wpa_drv_if_remove(wpa_s, type, ifname);
897 if (!wpa_s->p2p_go_group_formation_completed) {
898 wpa_s->global->p2p_group_formation = NULL;
899 wpa_s->p2p_in_provisioning = 0;
902 wpa_s->show_group_started = 0;
903 os_free(wpa_s->go_params);
904 wpa_s->go_params = NULL;
906 os_free(wpa_s->p2p_group_common_freqs);
907 wpa_s->p2p_group_common_freqs = NULL;
908 wpa_s->p2p_group_common_freqs_num = 0;
910 wpa_s->waiting_presence_resp = 0;
912 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
913 if (ssid && (ssid->p2p_group ||
914 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
915 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
917 if (ssid == wpa_s->current_ssid) {
918 wpa_sm_set_config(wpa_s->wpa, NULL);
919 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
920 wpa_s->current_ssid = NULL;
923 * Networks objects created during any P2P activities are not
924 * exposed out as they might/will confuse certain non-P2P aware
925 * applications since these network objects won't behave like
928 * Likewise, we don't send out network removed signals for such
931 wpa_config_remove_network(wpa_s->conf, id);
932 wpa_supplicant_clear_status(wpa_s);
933 wpa_supplicant_cancel_sched_scan(wpa_s);
935 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
939 wpa_supplicant_ap_deinit(wpa_s);
941 wpa_drv_deinit_p2p_cli(wpa_s);
947 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
949 const u8 *ssid, size_t ssid_len)
957 if (wpa_s->go_params)
958 bssid = wpa_s->go_params->peer_interface_addr;
960 bssid = wpa_s->bssid;
962 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
963 if (bss == NULL && wpa_s->go_params &&
964 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
965 bss = wpa_bss_get_p2p_dev_addr(
966 wpa_s, wpa_s->go_params->peer_device_addr);
968 u8 iface_addr[ETH_ALEN];
969 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
971 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
974 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
975 "group is persistent - BSS " MACSTR " not found",
980 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
982 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
985 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
986 "group is persistent - BSS " MACSTR
987 " did not include P2P IE", MAC2STR(bssid));
988 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
989 (u8 *) (bss + 1), bss->ie_len);
990 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
991 ((u8 *) bss + 1) + bss->ie_len,
996 group_capab = p2p_get_group_capab(p2p);
997 addr = p2p_get_go_dev_addr(p2p);
998 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
999 "group_capab=0x%x", group_capab);
1001 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1002 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1005 os_memset(go_dev_addr, 0, ETH_ALEN);
1008 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1009 "go_dev_addr=" MACSTR,
1010 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1012 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1016 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1017 struct wpa_ssid *ssid,
1018 const u8 *go_dev_addr)
1023 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1024 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1025 for (s = wpa_s->conf->ssid; s; s = s->next) {
1026 if (s->disabled == 2 &&
1027 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1028 s->ssid_len == ssid->ssid_len &&
1029 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1034 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1036 if (ssid->passphrase && !s->passphrase)
1038 else if (ssid->passphrase && s->passphrase &&
1039 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1042 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1045 s = wpa_config_add_network(wpa_s->conf);
1050 * Instead of network_added we emit persistent_group_added
1051 * notification. Also to keep the defense checks in
1052 * persistent_group obj registration method, we set the
1053 * relevant flags in s to designate it as a persistent group.
1056 s->p2p_persistent_group = 1;
1057 wpas_notify_persistent_group_added(wpa_s, s);
1058 wpa_config_set_network_defaults(s);
1062 s->p2p_persistent_group = 1;
1065 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1066 s->mode = ssid->mode;
1067 s->auth_alg = WPA_AUTH_ALG_OPEN;
1068 s->key_mgmt = WPA_KEY_MGMT_PSK;
1069 s->proto = WPA_PROTO_RSN;
1070 s->pairwise_cipher = WPA_CIPHER_CCMP;
1072 if (ssid->passphrase) {
1073 os_free(s->passphrase);
1074 s->passphrase = os_strdup(ssid->passphrase);
1076 if (ssid->psk_set) {
1078 os_memcpy(s->psk, ssid->psk, 32);
1080 if (s->passphrase && !s->psk_set)
1081 wpa_config_update_psk(s);
1082 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1084 s->ssid = os_malloc(ssid->ssid_len);
1087 s->ssid_len = ssid->ssid_len;
1088 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1090 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1091 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1092 wpa_s->global->add_psk = NULL;
1096 if (changed && wpa_s->conf->update_config &&
1097 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1098 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1105 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1108 struct wpa_ssid *ssid, *s;
1113 ssid = wpa_s->current_ssid;
1114 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1115 !ssid->p2p_persistent_group)
1118 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
1119 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1122 if (s->ssid_len == ssid->ssid_len &&
1123 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1130 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1131 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1135 if (i == s->num_p2p_clients - 1)
1136 return; /* already the most recent entry */
1138 /* move the entry to mark it most recent */
1139 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1140 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1141 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1142 os_memcpy(s->p2p_client_list +
1143 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1145 os_memset(s->p2p_client_list +
1146 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1152 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1153 n = os_realloc_array(s->p2p_client_list,
1154 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1157 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1159 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1161 s->p2p_client_list = n;
1162 s->num_p2p_clients++;
1163 } else if (!found && s->p2p_client_list) {
1164 /* Not enough room for an additional entry - drop the oldest
1166 os_memmove(s->p2p_client_list,
1167 s->p2p_client_list + 2 * ETH_ALEN,
1168 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1169 os_memcpy(s->p2p_client_list +
1170 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1172 os_memset(s->p2p_client_list +
1173 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1177 if (wpa_s->parent->conf->update_config &&
1178 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1179 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1183 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1184 int go, struct wpa_ssid *ssid, int freq,
1185 const u8 *psk, const char *passphrase,
1186 const u8 *go_dev_addr, int persistent,
1189 const char *ssid_txt;
1193 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1198 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1202 if (passphrase && passphrase[0] == '\0')
1206 * Include PSK/passphrase only in the control interface message and
1207 * leave it out from the debug log entry.
1209 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1210 P2P_EVENT_GROUP_STARTED
1211 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1213 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1214 psk ? " psk=" : "", psk_txt,
1215 passphrase ? " passphrase=\"" : "",
1216 passphrase ? passphrase : "",
1217 passphrase ? "\"" : "",
1218 MAC2STR(go_dev_addr),
1219 persistent ? " [PERSISTENT]" : "", extra);
1220 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1221 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1222 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1223 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1228 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1231 struct wpa_ssid *ssid;
1234 u8 go_dev_addr[ETH_ALEN];
1235 int network_id = -1;
1238 * This callback is likely called for the main interface. Update wpa_s
1239 * to use the group interface if a new interface was created for the
1242 if (wpa_s->global->p2p_group_formation)
1243 wpa_s = wpa_s->global->p2p_group_formation;
1244 if (wpa_s->p2p_go_group_formation_completed) {
1245 wpa_s->global->p2p_group_formation = NULL;
1246 wpa_s->p2p_in_provisioning = 0;
1248 wpa_s->p2p_in_invitation = 0;
1249 wpa_s->group_formation_reported = 1;
1252 wpa_msg_global(wpa_s->parent, MSG_INFO,
1253 P2P_EVENT_GROUP_FORMATION_FAILURE);
1254 wpas_p2p_group_delete(wpa_s,
1255 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1259 wpa_msg_global(wpa_s->parent, MSG_INFO,
1260 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1262 ssid = wpa_s->current_ssid;
1263 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1264 ssid->mode = WPAS_MODE_P2P_GO;
1265 p2p_group_notif_formation_done(wpa_s->p2p_group);
1266 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1271 client = ssid->mode == WPAS_MODE_INFRA;
1272 if (ssid->mode == WPAS_MODE_P2P_GO) {
1273 persistent = ssid->p2p_persistent_group;
1274 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1277 persistent = wpas_p2p_persistent_group(wpa_s,
1282 client = wpa_s->p2p_group_interface ==
1283 P2P_GROUP_INTERFACE_CLIENT;
1284 os_memset(go_dev_addr, 0, ETH_ALEN);
1287 wpa_s->show_group_started = 0;
1290 * Indicate event only after successfully completed 4-way
1291 * handshake, i.e., when the interface is ready for data
1294 wpa_s->show_group_started = 1;
1296 wpas_p2p_group_started(wpa_s, 1, ssid,
1297 ssid ? ssid->frequency : 0,
1298 ssid && ssid->passphrase == NULL &&
1299 ssid->psk_set ? ssid->psk : NULL,
1300 ssid ? ssid->passphrase : NULL,
1301 go_dev_addr, persistent, "");
1302 wpas_p2p_cross_connect_setup(wpa_s);
1303 wpas_p2p_set_group_idle_timeout(wpa_s);
1307 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1310 os_free(wpa_s->global->add_psk);
1311 wpa_s->global->add_psk = NULL;
1313 if (network_id < 0 && ssid)
1314 network_id = ssid->id;
1316 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1317 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1322 struct send_action_work {
1328 unsigned int wait_time;
1333 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1336 struct wpa_supplicant *wpa_s = eloop_ctx;
1338 if (!wpa_s->p2p_send_action_work)
1341 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1342 os_free(wpa_s->p2p_send_action_work->ctx);
1343 radio_work_done(wpa_s->p2p_send_action_work);
1344 wpa_s->p2p_send_action_work = NULL;
1348 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1350 if (wpa_s->p2p_send_action_work) {
1351 struct send_action_work *awork;
1352 awork = wpa_s->p2p_send_action_work->ctx;
1353 if (awork->wait_time == 0) {
1355 radio_work_done(wpa_s->p2p_send_action_work);
1356 wpa_s->p2p_send_action_work = NULL;
1359 * In theory, this should not be needed, but number of
1360 * places in the P2P code is still using non-zero wait
1361 * time for the last Action frame in the sequence and
1362 * some of these do not call send_action_done().
1364 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1366 eloop_register_timeout(
1367 0, awork->wait_time * 1000,
1368 wpas_p2p_send_action_work_timeout,
1375 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1377 const u8 *dst, const u8 *src,
1379 const u8 *data, size_t data_len,
1380 enum offchannel_send_action_result
1383 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1385 wpas_p2p_action_tx_clear(wpa_s);
1387 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1391 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1392 res = P2P_SEND_ACTION_SUCCESS;
1394 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1395 res = P2P_SEND_ACTION_NO_ACK;
1397 case OFFCHANNEL_SEND_ACTION_FAILED:
1398 res = P2P_SEND_ACTION_FAILED;
1402 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1404 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1405 wpa_s->pending_pd_before_join &&
1406 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1407 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1408 wpa_s->p2p_fallback_to_go_neg) {
1409 wpa_s->pending_pd_before_join = 0;
1410 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1411 "during p2p_connect-auto");
1412 wpa_msg_global(wpa_s->parent, MSG_INFO,
1413 P2P_EVENT_FALLBACK_TO_GO_NEG
1414 "reason=no-ACK-to-PD-Req");
1415 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1421 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1423 struct wpa_supplicant *wpa_s = work->wpa_s;
1424 struct send_action_work *awork = work->ctx;
1427 if (work->started) {
1428 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1430 wpa_s->p2p_send_action_work = NULL;
1431 offchannel_send_action_done(wpa_s);
1437 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1438 awork->bssid, awork->buf, awork->len,
1440 wpas_p2p_send_action_tx_status, 1) < 0) {
1442 radio_work_done(work);
1445 wpa_s->p2p_send_action_work = work;
1449 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1450 unsigned int freq, const u8 *dst,
1451 const u8 *src, const u8 *bssid, const u8 *buf,
1452 size_t len, unsigned int wait_time)
1454 struct send_action_work *awork;
1456 if (wpa_s->p2p_send_action_work) {
1457 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1461 awork = os_zalloc(sizeof(*awork) + len);
1466 os_memcpy(awork->dst, dst, ETH_ALEN);
1467 os_memcpy(awork->src, src, ETH_ALEN);
1468 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1470 awork->wait_time = wait_time;
1471 os_memcpy(awork->buf, buf, len);
1473 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1474 wpas_send_action_cb, awork) < 0) {
1483 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1484 const u8 *src, const u8 *bssid, const u8 *buf,
1485 size_t len, unsigned int wait_time)
1487 struct wpa_supplicant *wpa_s = ctx;
1488 int listen_freq = -1, send_freq = -1;
1490 if (wpa_s->p2p_listen_work)
1491 listen_freq = wpa_s->p2p_listen_work->freq;
1492 if (wpa_s->p2p_send_action_work)
1493 send_freq = wpa_s->p2p_send_action_work->freq;
1494 if (listen_freq != (int) freq && send_freq != (int) freq) {
1495 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1496 listen_freq, send_freq);
1497 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1501 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1502 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1504 wpas_p2p_send_action_tx_status, 1);
1508 static void wpas_send_action_done(void *ctx)
1510 struct wpa_supplicant *wpa_s = ctx;
1512 if (wpa_s->p2p_send_action_work) {
1513 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1515 os_free(wpa_s->p2p_send_action_work->ctx);
1516 radio_work_done(wpa_s->p2p_send_action_work);
1517 wpa_s->p2p_send_action_work = NULL;
1520 offchannel_send_action_done(wpa_s);
1524 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1525 struct p2p_go_neg_results *params)
1527 if (wpa_s->go_params == NULL) {
1528 wpa_s->go_params = os_malloc(sizeof(*params));
1529 if (wpa_s->go_params == NULL)
1532 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1537 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1538 struct p2p_go_neg_results *res)
1540 wpa_s->group_formation_reported = 0;
1541 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1542 " dev_addr " MACSTR " wps_method %d",
1543 MAC2STR(res->peer_interface_addr),
1544 MAC2STR(res->peer_device_addr), res->wps_method);
1545 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1546 res->ssid, res->ssid_len);
1547 wpa_supplicant_ap_deinit(wpa_s);
1548 wpas_copy_go_neg_results(wpa_s, res);
1549 if (res->wps_method == WPS_PBC) {
1550 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1551 #ifdef CONFIG_WPS_NFC
1552 } else if (res->wps_method == WPS_NFC) {
1553 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1554 res->peer_interface_addr,
1555 wpa_s->parent->p2p_oob_dev_pw,
1556 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1557 wpa_s->parent->p2p_oob_dev_pw_id ==
1558 DEV_PW_NFC_CONNECTION_HANDOVER ?
1559 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1562 #endif /* CONFIG_WPS_NFC */
1564 u16 dev_pw_id = DEV_PW_DEFAULT;
1565 if (wpa_s->p2p_wps_method == WPS_P2PS)
1566 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1567 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1568 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1569 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1570 wpa_s->p2p_pin, 1, dev_pw_id);
1575 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1576 struct wpa_ssid *ssid)
1578 struct wpa_ssid *persistent;
1579 struct psk_list_entry *psk;
1580 struct hostapd_data *hapd;
1582 if (!wpa_s->ap_iface)
1585 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1587 if (persistent == NULL)
1590 hapd = wpa_s->ap_iface->bss[0];
1592 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1594 struct hostapd_wpa_psk *hpsk;
1596 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1598 MAC2STR(psk->addr), psk->p2p);
1599 hpsk = os_zalloc(sizeof(*hpsk));
1602 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1604 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1606 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1607 hpsk->next = hapd->conf->ssid.wpa_psk;
1608 hapd->conf->ssid.wpa_psk = hpsk;
1613 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1617 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1618 wpa_s->p2p_group_common_freqs_num);
1620 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1621 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1622 i, wpa_s->p2p_group_common_freqs[i]);
1626 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1627 struct p2p_go_neg_results *params)
1629 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1631 wpa_s->p2p_group_common_freqs_num = 0;
1632 os_free(wpa_s->p2p_group_common_freqs);
1633 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1634 if (!wpa_s->p2p_group_common_freqs)
1637 for (i = 0; i < len; i++) {
1638 if (!wpa_s->go_params->freq_list[i])
1640 wpa_s->p2p_group_common_freqs[i] =
1641 wpa_s->go_params->freq_list[i];
1643 wpa_s->p2p_group_common_freqs_num = i;
1647 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1649 #ifndef CONFIG_NO_CONFIG_WRITE
1650 if (wpa_s->parent->conf->update_config &&
1651 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1652 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1653 #endif /* CONFIG_NO_CONFIG_WRITE */
1657 static void p2p_go_configured(void *ctx, void *data)
1659 struct wpa_supplicant *wpa_s = ctx;
1660 struct p2p_go_neg_results *params = data;
1661 struct wpa_ssid *ssid;
1662 int network_id = -1;
1664 p2p_go_save_group_common_freqs(wpa_s, params);
1665 p2p_go_dump_common_freqs(wpa_s);
1667 ssid = wpa_s->current_ssid;
1668 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1669 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1670 if (wpa_s->global->p2p_group_formation == wpa_s)
1671 wpa_s->global->p2p_group_formation = NULL;
1672 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1673 params->passphrase[0] == '\0' ?
1676 wpa_s->global->p2p_dev_addr,
1677 params->persistent_group, "");
1678 wpa_s->group_formation_reported = 1;
1680 if (wpa_s->parent->p2ps_join_addr_valid) {
1681 wpa_dbg(wpa_s, MSG_DEBUG,
1682 "P2PS: Setting default PIN for " MACSTR,
1683 MAC2STR(wpa_s->parent->p2ps_join_addr));
1684 wpa_supplicant_ap_wps_pin(wpa_s,
1685 wpa_s->parent->p2ps_join_addr,
1686 "12345670", NULL, 0, 0);
1687 wpa_s->parent->p2ps_join_addr_valid = 0;
1690 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1691 if (params->persistent_group) {
1692 network_id = wpas_p2p_store_persistent_group(
1693 wpa_s->parent, ssid,
1694 wpa_s->global->p2p_dev_addr);
1695 wpas_p2p_add_psk_list(wpa_s, ssid);
1698 network_id = ssid->id;
1699 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1700 wpas_p2p_cross_connect_setup(wpa_s);
1701 wpas_p2p_set_group_idle_timeout(wpa_s);
1703 if (wpa_s->p2p_first_connection_timeout) {
1704 wpa_dbg(wpa_s, MSG_DEBUG,
1705 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1706 wpa_s->p2p_first_connection_timeout);
1707 wpa_s->p2p_go_group_formation_completed = 0;
1708 wpa_s->global->p2p_group_formation = wpa_s;
1709 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1710 wpa_s->parent, NULL);
1711 eloop_register_timeout(
1712 wpa_s->p2p_first_connection_timeout, 0,
1713 wpas_p2p_group_formation_timeout,
1714 wpa_s->parent, NULL);
1720 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1721 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1722 params->peer_interface_addr)) {
1723 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1727 if (params->wps_method == WPS_PBC) {
1728 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1729 params->peer_device_addr);
1730 #ifdef CONFIG_WPS_NFC
1731 } else if (params->wps_method == WPS_NFC) {
1732 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1733 DEV_PW_NFC_CONNECTION_HANDOVER &&
1734 !wpa_s->parent->p2p_oob_dev_pw) {
1735 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1738 wpas_ap_wps_add_nfc_pw(
1739 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1740 wpa_s->parent->p2p_oob_dev_pw,
1741 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1742 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1743 #endif /* CONFIG_WPS_NFC */
1744 } else if (wpa_s->p2p_pin[0])
1745 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1746 wpa_s->p2p_pin, NULL, 0, 0);
1747 os_free(wpa_s->go_params);
1748 wpa_s->go_params = NULL;
1752 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1753 struct p2p_go_neg_results *params,
1754 int group_formation)
1756 struct wpa_ssid *ssid;
1758 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1759 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1760 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1765 ssid = wpa_config_add_network(wpa_s->conf);
1767 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1771 wpa_s->show_group_started = 0;
1772 wpa_s->p2p_go_group_formation_completed = 0;
1773 wpa_s->group_formation_reported = 0;
1775 wpa_config_set_network_defaults(ssid);
1776 ssid->temporary = 1;
1777 ssid->p2p_group = 1;
1778 ssid->p2p_persistent_group = params->persistent_group;
1779 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1781 ssid->frequency = params->freq;
1782 ssid->ht40 = params->ht40;
1783 ssid->vht = params->vht;
1784 ssid->ssid = os_zalloc(params->ssid_len + 1);
1786 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1787 ssid->ssid_len = params->ssid_len;
1789 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1790 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1791 ssid->proto = WPA_PROTO_RSN;
1792 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1793 ssid->group_cipher = WPA_CIPHER_CCMP;
1794 if (params->freq > 56160) {
1796 * Enable GCMP instead of CCMP as pairwise_cipher and
1797 * group_cipher in 60 GHz.
1799 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1800 ssid->group_cipher = WPA_CIPHER_GCMP;
1802 if (os_strlen(params->passphrase) > 0) {
1803 ssid->passphrase = os_strdup(params->passphrase);
1804 if (ssid->passphrase == NULL) {
1805 wpa_msg_global(wpa_s, MSG_ERROR,
1806 "P2P: Failed to copy passphrase for GO");
1807 wpa_config_remove_network(wpa_s->conf, ssid->id);
1811 ssid->passphrase = NULL;
1812 ssid->psk_set = params->psk_set;
1814 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1815 else if (ssid->passphrase)
1816 wpa_config_update_psk(ssid);
1817 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1819 wpa_s->ap_configured_cb = p2p_go_configured;
1820 wpa_s->ap_configured_cb_ctx = wpa_s;
1821 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1822 wpa_s->scan_req = NORMAL_SCAN_REQ;
1823 wpa_s->connect_without_scan = ssid;
1824 wpa_s->reassociate = 1;
1825 wpa_s->disconnected = 0;
1826 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1828 wpa_supplicant_req_scan(wpa_s, 0, 0);
1832 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1833 const struct wpa_supplicant *src)
1835 struct wpa_config *d;
1836 const struct wpa_config *s;
1841 #define C(n) if (s->n) d->n = os_strdup(s->n)
1850 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1851 os_memcpy(d->sec_device_type, s->sec_device_type,
1852 sizeof(d->sec_device_type));
1853 d->num_sec_device_types = s->num_sec_device_types;
1855 d->p2p_group_idle = s->p2p_group_idle;
1856 d->p2p_intra_bss = s->p2p_intra_bss;
1857 d->persistent_reconnect = s->persistent_reconnect;
1858 d->max_num_sta = s->max_num_sta;
1859 d->pbc_in_m1 = s->pbc_in_m1;
1860 d->ignore_old_scan_res = s->ignore_old_scan_res;
1861 d->beacon_int = s->beacon_int;
1862 d->dtim_period = s->dtim_period;
1863 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1864 d->disassoc_low_ack = s->disassoc_low_ack;
1865 d->disable_scan_offload = s->disable_scan_offload;
1866 d->passive_scan = s->passive_scan;
1868 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1869 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1870 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1875 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1876 char *ifname, size_t len)
1878 char *ifname_ptr = wpa_s->ifname;
1880 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1881 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1882 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1885 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1886 if (os_strlen(ifname) >= IFNAMSIZ &&
1887 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1890 /* Try to avoid going over the IFNAMSIZ length limit */
1891 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1892 if (os_snprintf_error(len, res) && len)
1893 ifname[len - 1] = '\0';
1898 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1899 enum wpa_driver_if_type type)
1901 char ifname[120], force_ifname[120];
1903 if (wpa_s->pending_interface_name[0]) {
1904 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1905 "- skip creation of a new one");
1906 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1907 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1908 "unknown?! ifname='%s'",
1909 wpa_s->pending_interface_name);
1915 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1916 force_ifname[0] = '\0';
1918 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1920 wpa_s->p2p_group_idx++;
1922 wpa_s->pending_interface_type = type;
1923 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1924 wpa_s->pending_interface_addr, NULL) < 0) {
1925 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1930 if (force_ifname[0]) {
1931 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1933 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1934 sizeof(wpa_s->pending_interface_name));
1936 os_strlcpy(wpa_s->pending_interface_name, ifname,
1937 sizeof(wpa_s->pending_interface_name));
1938 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1939 MACSTR, wpa_s->pending_interface_name,
1940 MAC2STR(wpa_s->pending_interface_addr));
1946 static void wpas_p2p_remove_pending_group_interface(
1947 struct wpa_supplicant *wpa_s)
1949 if (!wpa_s->pending_interface_name[0] ||
1950 is_zero_ether_addr(wpa_s->pending_interface_addr))
1951 return; /* No pending virtual interface */
1953 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1954 wpa_s->pending_interface_name);
1955 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1956 wpa_s->pending_interface_name);
1957 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1958 wpa_s->pending_interface_name[0] = '\0';
1959 wpa_s->global->pending_group_iface_for_p2ps = 0;
1963 static struct wpa_supplicant *
1964 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1966 struct wpa_interface iface;
1967 struct wpa_supplicant *group_wpa_s;
1969 if (!wpa_s->pending_interface_name[0]) {
1970 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1971 if (!wpas_p2p_create_iface(wpa_s))
1974 * Something has forced us to remove the pending interface; try
1975 * to create a new one and hope for the best that we will get
1976 * the same local address.
1978 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1979 WPA_IF_P2P_CLIENT) < 0)
1983 os_memset(&iface, 0, sizeof(iface));
1984 iface.ifname = wpa_s->pending_interface_name;
1985 iface.driver = wpa_s->driver->name;
1986 if (wpa_s->conf->ctrl_interface == NULL &&
1987 wpa_s->parent != wpa_s &&
1989 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1990 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1992 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1993 iface.driver_param = wpa_s->conf->driver_param;
1994 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
1995 if (group_wpa_s == NULL) {
1996 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1997 "wpa_supplicant interface");
2000 wpa_s->pending_interface_name[0] = '\0';
2001 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2002 P2P_GROUP_INTERFACE_CLIENT;
2003 wpa_s->global->p2p_group_formation = group_wpa_s;
2004 wpa_s->global->pending_group_iface_for_p2ps = 0;
2006 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2012 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2015 struct wpa_supplicant *wpa_s = eloop_ctx;
2016 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2017 wpas_p2p_group_formation_failed(wpa_s);
2021 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
2023 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2024 wpa_s->parent, NULL);
2025 if (wpa_s->global->p2p)
2026 p2p_group_formation_failed(wpa_s->global->p2p);
2027 wpas_group_formation_completed(wpa_s, 0);
2031 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2033 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2034 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2035 wpa_s->parent, NULL);
2036 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2037 wpa_s->parent, NULL);
2038 wpa_s->global->p2p_fail_on_wps_complete = 0;
2042 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2044 if (wpa_s->global->p2p_group_formation != wpa_s)
2046 /* Speed up group formation timeout since this cannot succeed */
2047 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2048 wpa_s->parent, NULL);
2049 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2050 wpa_s->parent, NULL);
2054 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2056 struct wpa_supplicant *wpa_s = ctx;
2058 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2059 wpa_drv_cancel_remain_on_channel(wpa_s);
2060 wpa_s->off_channel_freq = 0;
2061 wpa_s->roc_waiting_drv_freq = 0;
2065 wpa_msg_global(wpa_s, MSG_INFO,
2066 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2068 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2069 wpas_p2p_remove_pending_group_interface(wpa_s);
2073 if (wpa_s->p2p_go_ht40)
2075 if (wpa_s->p2p_go_vht)
2078 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2079 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2081 res->role_go ? "GO" : "client", res->freq, res->ht40,
2082 MAC2STR(res->peer_device_addr),
2083 MAC2STR(res->peer_interface_addr),
2084 p2p_wps_method_text(res->wps_method));
2085 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2087 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2088 struct wpa_ssid *ssid;
2089 ssid = wpa_config_get_network(wpa_s->conf,
2090 wpa_s->p2p_persistent_id);
2091 if (ssid && ssid->disabled == 2 &&
2092 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2093 size_t len = os_strlen(ssid->passphrase);
2094 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2095 "on requested persistent group");
2096 os_memcpy(res->passphrase, ssid->passphrase, len);
2097 res->passphrase[len] = '\0';
2101 if (wpa_s->create_p2p_iface) {
2102 struct wpa_supplicant *group_wpa_s =
2103 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2104 if (group_wpa_s == NULL) {
2105 wpas_p2p_remove_pending_group_interface(wpa_s);
2106 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2108 wpas_p2p_group_formation_failed(wpa_s);
2111 if (group_wpa_s != wpa_s) {
2112 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2113 sizeof(group_wpa_s->p2p_pin));
2114 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2116 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2117 wpa_s->pending_interface_name[0] = '\0';
2118 group_wpa_s->p2p_in_provisioning = 1;
2121 wpas_start_wps_go(group_wpa_s, res, 1);
2123 wpas_start_wps_enrollee(group_wpa_s, res);
2125 wpa_s->p2p_in_provisioning = 1;
2126 wpa_s->global->p2p_group_formation = wpa_s;
2129 wpas_start_wps_go(wpa_s, res, 1);
2131 wpas_start_wps_enrollee(ctx, res);
2134 wpa_s->p2p_long_listen = 0;
2135 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2137 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2138 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2139 (res->peer_config_timeout % 100) * 10000,
2140 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2144 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
2146 struct wpa_supplicant *wpa_s = ctx;
2147 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2148 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
2150 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
2154 static void wpas_dev_found(void *ctx, const u8 *addr,
2155 const struct p2p_peer_info *info,
2158 #ifndef CONFIG_NO_STDOUT_DEBUG
2159 struct wpa_supplicant *wpa_s = ctx;
2160 char devtype[WPS_DEV_TYPE_BUFSIZE];
2161 char *wfd_dev_info_hex = NULL;
2163 #ifdef CONFIG_WIFI_DISPLAY
2164 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2165 WFD_SUBELEM_DEVICE_INFO);
2166 #endif /* CONFIG_WIFI_DISPLAY */
2168 if (info->p2ps_instance) {
2170 const u8 *buf = wpabuf_head(info->p2ps_instance);
2171 size_t len = wpabuf_len(info->p2ps_instance);
2178 if (len < 4 + 2 + 1)
2180 id = WPA_GET_LE32(buf);
2182 methods = WPA_GET_BE16(buf);
2185 if (str_len > len - 4 - 2 - 1)
2187 os_memcpy(str, buf, str_len);
2188 str[str_len] = '\0';
2190 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2192 wpa_msg_global(wpa_s, MSG_INFO,
2193 P2P_EVENT_DEVICE_FOUND MACSTR
2194 " p2p_dev_addr=" MACSTR
2195 " pri_dev_type=%s name='%s'"
2196 " config_methods=0x%x"
2199 " adv_id=%x asp_svc=%s%s",
2201 MAC2STR(info->p2p_device_addr),
2202 wps_dev_type_bin2str(
2204 devtype, sizeof(devtype)),
2205 info->device_name, methods,
2206 info->dev_capab, info->group_capab,
2208 info->vendor_elems ?
2209 " vendor_elems=1" : "");
2214 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2215 " p2p_dev_addr=" MACSTR
2216 " pri_dev_type=%s name='%s' config_methods=0x%x "
2217 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2218 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2219 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2221 info->device_name, info->config_methods,
2222 info->dev_capab, info->group_capab,
2223 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2224 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2225 info->vendor_elems ? " vendor_elems=1" : "",
2229 os_free(wfd_dev_info_hex);
2230 #endif /* CONFIG_NO_STDOUT_DEBUG */
2232 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2236 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2238 struct wpa_supplicant *wpa_s = ctx;
2240 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2241 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2243 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2247 static void wpas_find_stopped(void *ctx)
2249 struct wpa_supplicant *wpa_s = ctx;
2250 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2254 struct wpas_p2p_listen_work {
2256 unsigned int duration;
2257 struct wpabuf *probe_resp_ie;
2261 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2265 wpabuf_free(lwork->probe_resp_ie);
2270 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2272 struct wpas_p2p_listen_work *lwork;
2274 if (!wpa_s->p2p_listen_work)
2277 lwork = wpa_s->p2p_listen_work->ctx;
2278 wpas_p2p_listen_work_free(lwork);
2279 radio_work_done(wpa_s->p2p_listen_work);
2280 wpa_s->p2p_listen_work = NULL;
2284 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2286 struct wpa_supplicant *wpa_s = work->wpa_s;
2287 struct wpas_p2p_listen_work *lwork = work->ctx;
2288 unsigned int duration;
2291 if (work->started) {
2292 wpa_s->p2p_listen_work = NULL;
2293 wpas_stop_listen(wpa_s);
2295 wpas_p2p_listen_work_free(lwork);
2299 wpa_s->p2p_listen_work = work;
2301 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2303 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2304 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2305 "report received Probe Request frames");
2306 wpas_p2p_listen_work_done(wpa_s);
2310 wpa_s->pending_listen_freq = lwork->freq;
2311 wpa_s->pending_listen_duration = lwork->duration;
2313 duration = lwork->duration;
2314 #ifdef CONFIG_TESTING_OPTIONS
2315 if (wpa_s->extra_roc_dur) {
2316 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2317 duration, duration + wpa_s->extra_roc_dur);
2318 duration += wpa_s->extra_roc_dur;
2320 #endif /* CONFIG_TESTING_OPTIONS */
2322 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2323 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2324 "to remain on channel (%u MHz) for Listen "
2325 "state", lwork->freq);
2326 wpas_p2p_listen_work_done(wpa_s);
2327 wpa_s->pending_listen_freq = 0;
2330 wpa_s->off_channel_freq = 0;
2331 wpa_s->roc_waiting_drv_freq = lwork->freq;
2335 static int wpas_start_listen(void *ctx, unsigned int freq,
2336 unsigned int duration,
2337 const struct wpabuf *probe_resp_ie)
2339 struct wpa_supplicant *wpa_s = ctx;
2340 struct wpas_p2p_listen_work *lwork;
2342 if (wpa_s->p2p_listen_work) {
2343 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2347 lwork = os_zalloc(sizeof(*lwork));
2351 lwork->duration = duration;
2352 if (probe_resp_ie) {
2353 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2354 if (lwork->probe_resp_ie == NULL) {
2355 wpas_p2p_listen_work_free(lwork);
2360 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2362 wpas_p2p_listen_work_free(lwork);
2370 static void wpas_stop_listen(void *ctx)
2372 struct wpa_supplicant *wpa_s = ctx;
2373 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2374 wpa_drv_cancel_remain_on_channel(wpa_s);
2375 wpa_s->off_channel_freq = 0;
2376 wpa_s->roc_waiting_drv_freq = 0;
2378 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2379 wpa_drv_probe_req_report(wpa_s, 0);
2380 wpas_p2p_listen_work_done(wpa_s);
2384 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
2386 struct wpa_supplicant *wpa_s = ctx;
2387 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
2391 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2392 const u8 *peer, const char *params,
2393 unsigned int generated_pin)
2395 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2396 " %08d%s", MAC2STR(peer), generated_pin, params);
2400 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2401 const u8 *peer, const char *params)
2403 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2404 "%s", MAC2STR(peer), params);
2408 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2409 const u8 *dev_addr, const u8 *pri_dev_type,
2410 const char *dev_name, u16 supp_config_methods,
2411 u8 dev_capab, u8 group_capab, const u8 *group_id,
2412 size_t group_id_len)
2414 struct wpa_supplicant *wpa_s = ctx;
2415 char devtype[WPS_DEV_TYPE_BUFSIZE];
2417 u8 empty_dev_type[8];
2418 unsigned int generated_pin = 0;
2419 struct wpa_supplicant *group = NULL;
2423 for (group = wpa_s->global->ifaces; group; group = group->next)
2425 struct wpa_ssid *s = group->current_ssid;
2427 s->mode == WPAS_MODE_P2P_GO &&
2428 group_id_len - ETH_ALEN == s->ssid_len &&
2429 os_memcmp(group_id + ETH_ALEN, s->ssid,
2435 if (pri_dev_type == NULL) {
2436 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2437 pri_dev_type = empty_dev_type;
2439 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2440 " pri_dev_type=%s name='%s' config_methods=0x%x "
2441 "dev_capab=0x%x group_capab=0x%x%s%s",
2443 wps_dev_type_bin2str(pri_dev_type, devtype,
2445 dev_name, supp_config_methods, dev_capab, group_capab,
2446 group ? " group=" : "",
2447 group ? group->ifname : "");
2448 if (os_snprintf_error(sizeof(params), res))
2449 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2450 params[sizeof(params) - 1] = '\0';
2452 if (config_methods & WPS_CONFIG_DISPLAY) {
2453 generated_pin = wps_generate_pin();
2454 wpas_prov_disc_local_display(wpa_s, peer, params,
2456 } else if (config_methods & WPS_CONFIG_KEYPAD)
2457 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2458 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2459 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2460 MACSTR "%s", MAC2STR(peer), params);
2462 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2463 P2P_PROV_DISC_SUCCESS,
2464 config_methods, generated_pin);
2468 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2470 struct wpa_supplicant *wpa_s = ctx;
2471 unsigned int generated_pin = 0;
2474 if (wpa_s->pending_pd_before_join &&
2475 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2476 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2477 wpa_s->pending_pd_before_join = 0;
2478 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2479 "join-existing-group operation");
2480 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2484 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2485 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2488 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2489 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2490 if (os_snprintf_error(sizeof(params), res))
2491 params[sizeof(params) - 1] = '\0';
2495 if (config_methods & WPS_CONFIG_DISPLAY)
2496 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2497 else if (config_methods & WPS_CONFIG_KEYPAD) {
2498 generated_pin = wps_generate_pin();
2499 wpas_prov_disc_local_display(wpa_s, peer, params,
2501 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2502 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2503 MACSTR "%s", MAC2STR(peer), params);
2505 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2506 P2P_PROV_DISC_SUCCESS,
2507 config_methods, generated_pin);
2511 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2512 enum p2p_prov_disc_status status,
2513 u32 adv_id, const u8 *adv_mac,
2514 const char *deferred_session_resp)
2516 struct wpa_supplicant *wpa_s = ctx;
2518 if (wpa_s->p2p_fallback_to_go_neg) {
2519 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2520 "failed - fall back to GO Negotiation");
2521 wpa_msg_global(wpa_s->parent, MSG_INFO,
2522 P2P_EVENT_FALLBACK_TO_GO_NEG
2523 "reason=PD-failed");
2524 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2528 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2529 wpa_s->pending_pd_before_join = 0;
2530 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2531 "join-existing-group operation (no ACK for PD "
2533 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2537 if (adv_id && adv_mac && deferred_session_resp) {
2538 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2539 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2540 " deferred_session_resp='%s'",
2541 MAC2STR(peer), status, adv_id,
2542 deferred_session_resp);
2543 } else if (adv_id && adv_mac) {
2544 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2545 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2546 MAC2STR(peer), status, adv_id);
2548 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2549 " p2p_dev_addr=" MACSTR " status=%d",
2550 MAC2STR(peer), status);
2553 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2558 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2560 if (channels == NULL)
2561 return 1; /* Assume no restrictions */
2562 return p2p_channels_includes_freq(channels, freq);
2568 * Pick the best frequency to use from all the currently used frequencies.
2570 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2571 struct wpa_used_freq_data *freqs,
2576 /* find a candidate freq that is supported by P2P */
2577 for (c = 0; c < num; c++)
2578 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2584 /* once we have a candidate, try to find a 'better' one */
2585 for (i = c + 1; i < num; i++) {
2586 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2590 * 1. Infrastructure station interfaces have higher preference.
2591 * 2. P2P Clients have higher preference.
2594 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2599 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2602 return freqs[c].freq;
2606 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2607 const u8 *go_dev_addr, const u8 *ssid,
2608 size_t ssid_len, int *go, u8 *group_bssid,
2609 int *force_freq, int persistent_group,
2610 const struct p2p_channels *channels,
2613 struct wpa_supplicant *wpa_s = ctx;
2615 struct wpa_used_freq_data *freqs;
2616 struct wpa_supplicant *grp;
2619 if (!persistent_group) {
2620 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2621 " to join an active group (SSID: %s)",
2622 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2623 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2624 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2626 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2627 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2628 "authorized invitation");
2632 #ifdef CONFIG_WPS_NFC
2633 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2634 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2635 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2636 wpa_s->p2p_wps_method = WPS_NFC;
2637 wpa_s->pending_join_wps_method = WPS_NFC;
2638 os_memcpy(wpa_s->pending_join_dev_addr,
2639 go_dev_addr, ETH_ALEN);
2640 os_memcpy(wpa_s->pending_join_iface_addr,
2644 #endif /* CONFIG_WPS_NFC */
2647 * Do not accept the invitation automatically; notify user and
2650 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2653 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2655 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2656 "running persistent group");
2658 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2662 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2663 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2664 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2665 "invitation to re-invoke a persistent group");
2666 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2667 } else if (!wpa_s->conf->persistent_reconnect)
2668 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2670 for (s = wpa_s->conf->ssid; s; s = s->next) {
2671 if (s->disabled == 2 &&
2672 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2673 s->ssid_len == ssid_len &&
2674 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2679 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2680 " requested reinvocation of an unknown group",
2682 return P2P_SC_FAIL_UNKNOWN_GROUP;
2685 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2687 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2688 wpa_printf(MSG_DEBUG, "P2P: The only available "
2689 "interface is already in use - reject "
2691 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2693 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2694 } else if (s->mode == WPAS_MODE_P2P_GO) {
2696 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2698 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2699 "interface address for the group");
2700 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2702 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2707 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2710 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2711 sizeof(struct wpa_used_freq_data));
2713 int num_channels = wpa_s->num_multichan_concurrent;
2714 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2715 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2719 /* Get one of the frequencies currently in use */
2720 if (best_freq > 0) {
2721 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2722 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2724 if (wpa_s->num_multichan_concurrent < 2 ||
2725 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2726 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2727 *force_freq = best_freq;
2731 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2732 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2734 /* We are the client */
2735 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2736 "running a GO but we are capable of MCC, "
2737 "figure out the best channel to use");
2739 } else if (!freq_included(channels, *force_freq)) {
2740 /* We are the GO, and *force_freq is not in the
2742 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2743 "in intersection but we are capable of MCC, "
2744 "figure out the best channel to use",
2750 return P2P_SC_SUCCESS;
2754 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2755 const u8 *ssid, size_t ssid_len,
2756 const u8 *go_dev_addr, u8 status,
2759 struct wpa_supplicant *wpa_s = ctx;
2762 for (s = wpa_s->conf->ssid; s; s = s->next) {
2763 if (s->disabled == 2 &&
2764 s->ssid_len == ssid_len &&
2765 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2769 if (status == P2P_SC_SUCCESS) {
2770 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2771 " was accepted; op_freq=%d MHz, SSID=%s",
2772 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2774 int go = s->mode == WPAS_MODE_P2P_GO;
2775 wpas_p2p_group_add_persistent(
2776 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2777 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2779 wpa_s->user_initiated_pd = 0;
2780 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2781 wpa_s->p2p_wps_method, 0, op_freq,
2787 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2788 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2789 " was rejected (status %u)", MAC2STR(sa), status);
2795 wpa_msg_global(wpa_s, MSG_INFO,
2796 P2P_EVENT_INVITATION_RECEIVED
2797 "sa=" MACSTR " go_dev_addr=" MACSTR
2798 " bssid=" MACSTR " unknown-network",
2799 MAC2STR(sa), MAC2STR(go_dev_addr),
2802 wpa_msg_global(wpa_s, MSG_INFO,
2803 P2P_EVENT_INVITATION_RECEIVED
2804 "sa=" MACSTR " go_dev_addr=" MACSTR
2806 MAC2STR(sa), MAC2STR(go_dev_addr));
2811 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2812 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2813 "sa=" MACSTR " persistent=%d freq=%d",
2814 MAC2STR(sa), s->id, op_freq);
2816 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2817 "sa=" MACSTR " persistent=%d",
2818 MAC2STR(sa), s->id);
2823 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2824 struct wpa_ssid *ssid,
2825 const u8 *peer, int inv)
2832 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2833 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
2837 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
2838 if (ssid->mode != WPAS_MODE_P2P_GO &&
2839 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2840 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2841 "due to invitation result", ssid->id);
2842 wpas_notify_network_removed(wpa_s, ssid);
2843 wpa_config_remove_network(wpa_s->conf, ssid->id);
2846 return; /* Peer not found in client list */
2849 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
2850 "group %d client list%s",
2851 MAC2STR(peer), ssid->id,
2852 inv ? " due to invitation result" : "");
2853 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
2854 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
2855 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
2856 ssid->num_p2p_clients--;
2857 if (wpa_s->parent->conf->update_config &&
2858 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
2859 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2863 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2866 struct wpa_ssid *ssid;
2868 wpa_s = wpa_s->global->p2p_invite_group;
2870 return; /* No known invitation group */
2871 ssid = wpa_s->current_ssid;
2872 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
2873 !ssid->p2p_persistent_group)
2874 return; /* Not operating as a GO in persistent group */
2875 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
2876 ssid->ssid, ssid->ssid_len);
2877 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2881 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
2882 const struct p2p_channels *channels,
2883 const u8 *peer, int neg_freq,
2886 struct wpa_supplicant *wpa_s = ctx;
2887 struct wpa_ssid *ssid;
2891 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2892 "status=%d " MACSTR,
2893 status, MAC2STR(bssid));
2895 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2896 "status=%d ", status);
2898 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2900 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
2901 status, MAC2STR(peer));
2902 if (wpa_s->pending_invite_ssid_id == -1) {
2903 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
2904 wpas_remove_persistent_client(wpa_s, peer);
2905 return; /* Invitation to active group */
2908 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2909 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
2910 "invitation exchange to indicate readiness for "
2914 if (status != P2P_SC_SUCCESS) {
2915 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
2916 ssid = wpa_config_get_network(
2917 wpa_s->conf, wpa_s->pending_invite_ssid_id);
2918 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2920 wpas_p2p_remove_pending_group_interface(wpa_s);
2924 ssid = wpa_config_get_network(wpa_s->conf,
2925 wpa_s->pending_invite_ssid_id);
2927 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2928 "data matching with invitation");
2933 * The peer could have missed our ctrl::ack frame for Invitation
2934 * Response and continue retransmitting the frame. To reduce the
2935 * likelihood of the peer not getting successful TX status for the
2936 * Invitation Response frame, wait a short time here before starting
2937 * the persistent group so that we will remain on the current channel to
2938 * acknowledge any possible retransmission from the peer.
2940 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2941 "starting persistent group");
2944 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
2945 freq_included(channels, neg_freq))
2947 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
2948 freq_included(channels, peer_oper_freq))
2949 freq = peer_oper_freq;
2953 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
2954 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2955 wpas_p2p_group_add_persistent(wpa_s, ssid,
2956 ssid->mode == WPAS_MODE_P2P_GO,
2957 wpa_s->p2p_persistent_go_freq,
2959 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
2961 ssid->mode == WPAS_MODE_P2P_GO ?
2962 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
2967 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2970 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
2972 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
2976 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2978 reg->channel[reg->channels] = chan;
2983 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2984 struct p2p_channels *chan,
2985 struct p2p_channels *cli_chan)
2989 wpa_s->global->p2p_24ghz_social_channels = 1;
2991 os_memset(cli_chan, 0, sizeof(*cli_chan));
2993 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2996 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2997 chan->reg_class[cla].reg_class = 81;
2998 chan->reg_class[cla].channels = 0;
2999 for (i = 0; i < 11; i++) {
3000 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3001 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3003 if (chan->reg_class[cla].channels)
3006 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3009 /* Operating class 115 - 5 GHz, channels 36-48 */
3010 chan->reg_class[cla].reg_class = 115;
3011 chan->reg_class[cla].channels = 0;
3012 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3013 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3014 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3015 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3016 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3017 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3018 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3019 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3020 if (chan->reg_class[cla].channels)
3023 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3026 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3027 chan->reg_class[cla].reg_class = 124;
3028 chan->reg_class[cla].channels = 0;
3029 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3030 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3031 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3032 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3033 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3034 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3035 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3036 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3037 if (chan->reg_class[cla].channels)
3040 chan->reg_classes = cla;
3045 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3047 enum hostapd_hw_mode mode)
3051 for (i = 0; i < num_modes; i++) {
3052 if (modes[i].mode == mode)
3061 NOT_ALLOWED, NO_IR, ALLOWED
3064 static int has_channel(struct wpa_global *global,
3065 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3070 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3072 if (wpas_p2p_disallowed_freq(global, freq))
3075 for (i = 0; i < mode->num_channels; i++) {
3076 if (mode->channels[i].chan == chan) {
3078 *flags = mode->channels[i].flag;
3079 if (mode->channels[i].flag &
3080 (HOSTAPD_CHAN_DISABLED |
3081 HOSTAPD_CHAN_RADAR))
3083 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3093 struct p2p_oper_class_map {
3094 enum hostapd_hw_mode mode;
3099 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3102 static struct p2p_oper_class_map op_class[] = {
3103 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3104 #if 0 /* Do not enable HT40 on 2 GHz for now */
3105 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3106 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3108 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3109 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3110 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3111 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3112 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3113 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3116 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3117 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3118 * 80 MHz, but currently use the following definition for simplicity
3119 * (these center frequencies are not actual channels, which makes
3120 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3121 * removing invalid channels.
3123 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3124 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3125 { -1, 0, 0, 0, 0, BW20 }
3129 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3130 struct hostapd_hw_modes *mode,
3133 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3136 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3139 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3141 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3142 * so the center channel is 6 channels away from the start/end.
3144 if (channel >= center_channels[i] - 6 &&
3145 channel <= center_channels[i] + 6)
3146 return center_channels[i];
3152 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3153 struct hostapd_hw_modes *mode,
3158 enum chan_allowed res, ret = ALLOWED;
3160 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3163 if (center_chan >= 58 && center_chan <= 138)
3164 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3166 /* check all the channels are available */
3167 for (i = 0; i < 4; i++) {
3168 int adj_chan = center_chan - 6 + i * 4;
3170 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3171 if (res == NOT_ALLOWED)
3176 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3178 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3180 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3182 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3190 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3191 struct hostapd_hw_modes *mode,
3195 enum chan_allowed res, res2;
3197 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3198 if (bw == BW40MINUS) {
3199 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3201 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3202 } else if (bw == BW40PLUS) {
3203 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3205 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3206 } else if (bw == BW80) {
3207 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3210 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3212 if (res == NO_IR || res2 == NO_IR)
3218 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3219 struct p2p_channels *chan,
3220 struct p2p_channels *cli_chan)
3222 struct hostapd_hw_modes *mode;
3223 int cla, op, cli_cla;
3225 if (wpa_s->hw.modes == NULL) {
3226 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3227 "of all supported channels; assume dualband "
3229 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3234 for (op = 0; op_class[op].op_class; op++) {
3235 struct p2p_oper_class_map *o = &op_class[op];
3237 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3239 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3242 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3243 wpa_s->global->p2p_24ghz_social_channels = 1;
3244 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3245 enum chan_allowed res;
3246 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3247 if (res == ALLOWED) {
3249 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3251 reg = &chan->reg_class[cla];
3253 reg->reg_class = o->op_class;
3255 reg->channel[reg->channels] = ch;
3257 } else if (res == NO_IR &&
3258 wpa_s->conf->p2p_add_cli_chan) {
3259 if (cli_reg == NULL) {
3260 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3262 cli_reg = &cli_chan->reg_class[cli_cla];
3264 cli_reg->reg_class = o->op_class;
3266 cli_reg->channel[cli_reg->channels] = ch;
3267 cli_reg->channels++;
3271 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3272 reg->channel, reg->channels);
3275 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3276 cli_reg->channel, cli_reg->channels);
3280 chan->reg_classes = cla;
3281 cli_chan->reg_classes = cli_cla;
3287 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3288 struct hostapd_hw_modes *mode, u8 channel)
3291 enum chan_allowed ret;
3293 for (op = 0; op_class[op].op_class; op++) {
3294 struct p2p_oper_class_map *o = &op_class[op];
3297 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3298 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3299 o->bw == BW20 || ch != channel)
3301 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3303 return (o->bw == BW40MINUS) ? -1 : 1;
3310 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3311 struct hostapd_hw_modes *mode, u8 channel)
3313 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3316 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3320 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3323 struct wpa_supplicant *wpa_s = ctx;
3325 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3326 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3332 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3336 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3337 const u8 *ssid, size_t ssid_len)
3339 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3340 struct wpa_ssid *s = wpa_s->current_ssid;
3343 if (s->mode != WPAS_MODE_P2P_GO &&
3344 s->mode != WPAS_MODE_AP &&
3345 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3347 if (s->ssid_len != ssid_len ||
3348 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3358 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3359 const u8 *peer_dev_addr)
3361 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3362 struct wpa_ssid *ssid = wpa_s->current_ssid;
3365 if (ssid->mode != WPAS_MODE_INFRA)
3367 if (wpa_s->wpa_state != WPA_COMPLETED &&
3368 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3370 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3378 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3380 struct wpa_supplicant *wpa_s = ctx;
3382 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3386 static int wpas_is_concurrent_session_active(void *ctx)
3388 struct wpa_supplicant *wpa_s = ctx;
3389 struct wpa_supplicant *ifs;
3391 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3394 if (ifs->wpa_state > WPA_ASSOCIATED)
3401 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3403 struct wpa_supplicant *wpa_s = ctx;
3404 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3408 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3409 const char *conf_p2p_dev)
3411 struct wpa_interface iface;
3412 struct wpa_supplicant *p2pdev_wpa_s;
3414 char force_name[100];
3417 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3419 if (os_snprintf_error(sizeof(ifname), ret))
3421 force_name[0] = '\0';
3422 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3423 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3424 force_name, wpa_s->pending_interface_addr, NULL);
3426 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3429 os_strlcpy(wpa_s->pending_interface_name, ifname,
3430 sizeof(wpa_s->pending_interface_name));
3432 os_memset(&iface, 0, sizeof(iface));
3434 iface.ifname = wpa_s->pending_interface_name;
3435 iface.driver = wpa_s->driver->name;
3436 iface.driver_param = wpa_s->conf->driver_param;
3439 * If a P2P Device configuration file was given, use it as the interface
3440 * configuration file (instead of using parent's configuration file.
3443 iface.confname = conf_p2p_dev;
3444 iface.ctrl_interface = NULL;
3446 iface.confname = wpa_s->confname;
3447 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3449 iface.conf_p2p_dev = NULL;
3451 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3452 if (!p2pdev_wpa_s) {
3453 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3456 wpa_s->p2p_dev = p2pdev_wpa_s;
3458 wpa_s->pending_interface_name[0] = '\0';
3463 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3464 const u8 *noa, size_t noa_len)
3466 struct wpa_supplicant *wpa_s, *intf = ctx;
3469 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3470 if (wpa_s->waiting_presence_resp)
3474 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3477 wpa_s->waiting_presence_resp = 0;
3479 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3480 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3481 " status=%u noa=%s", MAC2STR(src), status, hex);
3485 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3486 size_t ssid_len, u8 *go_dev_addr,
3487 u8 *ret_ssid, size_t *ret_ssid_len)
3489 struct wpa_supplicant *wpa_s = ctx;
3492 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3494 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3495 *ret_ssid_len = s->ssid_len;
3496 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3504 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3505 u8 *ssid, size_t *ssid_len, int *group_iface)
3507 struct wpa_supplicant *wpa_s = ctx;
3511 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3513 s = wpas_p2p_get_persistent_go(wpa_s);
3515 os_memcpy(bssid, s->bssid, ETH_ALEN);
3518 *group_iface = wpas_p2p_create_iface(wpa_s);
3522 os_memcpy(intended_addr, bssid, ETH_ALEN);
3523 os_memcpy(ssid, s->ssid, s->ssid_len);
3524 *ssid_len = s->ssid_len;
3530 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3531 const u8 *ssid, size_t ssid_len)
3533 struct wpa_supplicant *wpa_s = ctx;
3535 int save_config = 0;
3538 /* Start with our first choice of Persistent Groups */
3539 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3540 if (go && ssid && ssid_len &&
3541 s->ssid_len == ssid_len &&
3542 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3543 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3546 /* Remove stale persistent group */
3547 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3548 wpa_config_remove_network(wpa_s->conf, s->id);
3553 for (i = 0; i < s->num_p2p_clients; i++) {
3554 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3555 peer, ETH_ALEN) != 0)
3558 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3559 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3560 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3563 s->num_p2p_clients--;
3568 p2p_config_write(wpa_s);
3570 /* Return TRUE if valid SSID remains */
3575 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3576 const u8 *adv_mac, const u8 *ses_mac,
3577 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3578 u8 conncap, int passwd_id,
3579 const u8 *persist_ssid,
3580 size_t persist_ssid_size, int response_done,
3581 int prov_start, const char *session_info)
3583 struct wpa_supplicant *wpa_s = ctx;
3585 struct wpa_ssid *persistent_go, *stale, *s;
3586 int save_config = 0;
3587 struct wpa_supplicant *go_wpa_s;
3592 os_memset(mac, 0, ETH_ALEN);
3601 if (session_info == NULL) {
3602 wpa_msg_global(wpa_s, MSG_INFO,
3603 P2P_EVENT_P2PS_PROVISION_START MACSTR
3604 " adv_id=%x conncap=%x"
3606 " session=%x mac=" MACSTR
3607 " dev_passwd_id=%d",
3608 MAC2STR(dev), adv_id, conncap,
3610 ses_id, MAC2STR(ses_mac),
3613 wpa_msg_global(wpa_s, MSG_INFO,
3614 P2P_EVENT_P2PS_PROVISION_START MACSTR
3615 " adv_id=%x conncap=%x"
3617 " session=%x mac=" MACSTR
3618 " dev_passwd_id=%d info='%s'",
3619 MAC2STR(dev), adv_id, conncap,
3621 ses_id, MAC2STR(ses_mac),
3622 passwd_id, session_info);
3627 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3628 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3630 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3631 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3632 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3634 if (persistent_go && !persistent_go->num_p2p_clients) {
3635 /* remove empty persistent GO */
3636 wpa_config_remove_network(wpa_s->conf,
3640 wpa_msg_global(wpa_s, MSG_INFO,
3641 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3643 " adv_id=%x adv_mac=" MACSTR
3644 " session=%x mac=" MACSTR,
3645 MAC2STR(dev), status,
3646 adv_id, MAC2STR(adv_mac),
3647 ses_id, MAC2STR(ses_mac));
3651 /* Clean up stale persistent groups with this device */
3652 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3655 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3659 if (s && s->ssid_len == stale->ssid_len &&
3660 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3661 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3664 /* Remove stale persistent group */
3665 if (stale->mode != WPAS_MODE_P2P_GO ||
3666 stale->num_p2p_clients <= 1) {
3667 wpa_config_remove_network(wpa_s->conf, stale->id);
3671 for (i = 0; i < stale->num_p2p_clients; i++) {
3672 if (os_memcmp(stale->p2p_client_list +
3674 dev, ETH_ALEN) == 0) {
3675 os_memmove(stale->p2p_client_list +
3677 stale->p2p_client_list +
3679 (stale->num_p2p_clients -
3684 stale->num_p2p_clients--;
3690 p2p_config_write(wpa_s);
3693 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3694 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3696 if (persistent_go && s != persistent_go &&
3697 !persistent_go->num_p2p_clients) {
3698 /* remove empty persistent GO */
3699 wpa_config_remove_network(wpa_s->conf,
3704 wpa_msg_global(wpa_s, MSG_INFO,
3705 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3707 " adv_id=%x adv_mac=" MACSTR
3708 " session=%x mac=" MACSTR
3710 MAC2STR(dev), status,
3711 adv_id, MAC2STR(adv_mac),
3712 ses_id, MAC2STR(ses_mac), s->id);
3716 if (conncap == P2PS_SETUP_GROUP_OWNER) {
3717 const char *go_ifname = NULL;
3719 wpa_s->global->pending_p2ps_group = 1;
3721 if (wpa_s->conf->p2p_no_group_iface)
3722 go_ifname = wpa_s->ifname;
3723 else if (wpa_s->pending_interface_name[0])
3724 go_ifname = wpa_s->pending_interface_name;
3727 wpas_p2ps_prov_complete(
3728 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3729 dev, adv_mac, ses_mac,
3730 NULL, adv_id, ses_id, 0, 0,
3731 NULL, 0, 0, 0, NULL);
3735 /* If PD Resp complete, start up the GO */
3736 if (response_done && persistent_go) {
3737 wpas_p2p_group_add_persistent(
3738 wpa_s, persistent_go,
3739 0, 0, 0, 0, 0, NULL,
3740 persistent_go->mode ==
3742 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3744 } else if (response_done) {
3745 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3748 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3749 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3750 wpa_s->p2ps_join_addr_valid = 1;
3751 wpa_dbg(wpa_s, MSG_DEBUG,
3752 "P2PS: Saving PIN for " MACSTR,
3755 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3756 go_ifname = go_wpa_s->ifname;
3758 wpa_dbg(go_wpa_s, MSG_DEBUG,
3759 "P2P: Setting PIN-1 For " MACSTR, MAC2STR(dev));
3760 wpa_supplicant_ap_wps_pin(go_wpa_s, dev, "12345670",
3763 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3764 wpa_s->p2ps_join_addr_valid = 1;
3765 wpa_dbg(wpa_s, MSG_DEBUG,
3766 "P2PS: Saving PIN for " MACSTR, MAC2STR(dev));
3769 wpa_msg_global(wpa_s, MSG_INFO,
3770 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3771 " status=%d conncap=%x"
3772 " adv_id=%x adv_mac=" MACSTR
3773 " session=%x mac=" MACSTR
3774 " dev_passwd_id=%d go=%s",
3775 MAC2STR(dev), status, conncap,
3776 adv_id, MAC2STR(adv_mac),
3777 ses_id, MAC2STR(ses_mac),
3778 passwd_id, go_ifname);
3782 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3783 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3785 if (persistent_go && !persistent_go->num_p2p_clients) {
3786 /* remove empty persistent GO */
3787 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
3790 if (conncap == P2PS_SETUP_CLIENT) {
3791 wpa_msg_global(wpa_s, MSG_INFO,
3792 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3793 " status=%d conncap=%x"
3794 " adv_id=%x adv_mac=" MACSTR
3795 " session=%x mac=" MACSTR
3796 " dev_passwd_id=%d join=" MACSTR,
3797 MAC2STR(dev), status, conncap,
3798 adv_id, MAC2STR(adv_mac),
3799 ses_id, MAC2STR(ses_mac),
3800 passwd_id, MAC2STR(grp_mac));
3802 wpa_msg_global(wpa_s, MSG_INFO,
3803 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3804 " status=%d conncap=%x"
3805 " adv_id=%x adv_mac=" MACSTR
3806 " session=%x mac=" MACSTR
3807 " dev_passwd_id=%d",
3808 MAC2STR(dev), status, conncap,
3809 adv_id, MAC2STR(adv_mac),
3810 ses_id, MAC2STR(ses_mac),
3816 static int _wpas_p2p_in_progress(void *ctx)
3818 struct wpa_supplicant *wpa_s = ctx;
3819 return wpas_p2p_in_progress(wpa_s);
3823 static int wpas_prov_disc_resp_cb(void *ctx)
3825 struct wpa_supplicant *wpa_s = ctx;
3826 struct wpa_ssid *persistent_go;
3828 if (!wpa_s->global->pending_p2ps_group)
3831 wpa_s->global->pending_p2ps_group = 0;
3833 if (wpas_p2p_get_go_group(wpa_s))
3835 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3837 if (persistent_go) {
3838 wpas_p2p_group_add_persistent(
3839 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
3840 persistent_go->mode == WPAS_MODE_P2P_GO ?
3841 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3843 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3851 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3852 * @global: Pointer to global data from wpa_supplicant_init()
3853 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3854 * Returns: 0 on success, -1 on failure
3856 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3858 struct p2p_config p2p;
3861 if (wpa_s->conf->p2p_disabled)
3864 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3870 os_memset(&p2p, 0, sizeof(p2p));
3872 p2p.debug_print = wpas_p2p_debug_print;
3873 p2p.p2p_scan = wpas_p2p_scan;
3874 p2p.send_action = wpas_send_action;
3875 p2p.send_action_done = wpas_send_action_done;
3876 p2p.go_neg_completed = wpas_go_neg_completed;
3877 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3878 p2p.dev_found = wpas_dev_found;
3879 p2p.dev_lost = wpas_dev_lost;
3880 p2p.find_stopped = wpas_find_stopped;
3881 p2p.start_listen = wpas_start_listen;
3882 p2p.stop_listen = wpas_stop_listen;
3883 p2p.send_probe_resp = wpas_send_probe_resp;
3884 p2p.sd_request = wpas_sd_request;
3885 p2p.sd_response = wpas_sd_response;
3886 p2p.prov_disc_req = wpas_prov_disc_req;
3887 p2p.prov_disc_resp = wpas_prov_disc_resp;
3888 p2p.prov_disc_fail = wpas_prov_disc_fail;
3889 p2p.invitation_process = wpas_invitation_process;
3890 p2p.invitation_received = wpas_invitation_received;
3891 p2p.invitation_result = wpas_invitation_result;
3892 p2p.get_noa = wpas_get_noa;
3893 p2p.go_connected = wpas_go_connected;
3894 p2p.presence_resp = wpas_presence_resp;
3895 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
3896 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
3897 p2p.get_persistent_group = wpas_get_persistent_group;
3898 p2p.get_go_info = wpas_get_go_info;
3899 p2p.remove_stale_groups = wpas_remove_stale_groups;
3900 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
3901 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
3902 p2p.p2ps_group_capability = p2ps_group_capability;
3904 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
3905 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
3906 p2p.dev_name = wpa_s->conf->device_name;
3907 p2p.manufacturer = wpa_s->conf->manufacturer;
3908 p2p.model_name = wpa_s->conf->model_name;
3909 p2p.model_number = wpa_s->conf->model_number;
3910 p2p.serial_number = wpa_s->conf->serial_number;
3912 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3913 p2p.config_methods = wpa_s->wps->config_methods;
3916 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
3917 wpa_printf(MSG_ERROR,
3918 "P2P: Failed to configure supported channel list");
3922 if (wpa_s->conf->p2p_listen_reg_class &&
3923 wpa_s->conf->p2p_listen_channel) {
3924 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3925 p2p.channel = wpa_s->conf->p2p_listen_channel;
3926 p2p.channel_forced = 1;
3929 * Pick one of the social channels randomly as the listen
3932 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
3933 &p2p.channel) != 0) {
3934 wpa_printf(MSG_ERROR,
3935 "P2P: Failed to select random social channel as listen channel");
3938 p2p.channel_forced = 0;
3940 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
3941 p2p.reg_class, p2p.channel);
3943 if (wpa_s->conf->p2p_oper_reg_class &&
3944 wpa_s->conf->p2p_oper_channel) {
3945 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3946 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
3947 p2p.cfg_op_channel = 1;
3948 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3949 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3953 * Use random operation channel from 2.4 GHz band social
3954 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
3955 * other preference is indicated.
3957 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
3958 &p2p.op_channel) != 0) {
3959 wpa_printf(MSG_ERROR,
3960 "P2P: Failed to select random social channel as operation channel");
3963 p2p.cfg_op_channel = 0;
3964 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3965 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3968 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3969 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3970 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3973 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3974 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3975 p2p.country[2] = 0x04;
3977 os_memcpy(p2p.country, "XX\x04", 3);
3979 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3982 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3983 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3984 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
3986 p2p.concurrent_operations = !!(wpa_s->drv_flags &
3987 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3989 p2p.max_peers = 100;
3991 if (wpa_s->conf->p2p_ssid_postfix) {
3992 p2p.ssid_postfix_len =
3993 os_strlen(wpa_s->conf->p2p_ssid_postfix);
3994 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3995 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3996 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3997 p2p.ssid_postfix_len);
4000 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4002 p2p.max_listen = wpa_s->max_remain_on_chan;
4004 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4005 wpa_s->conf->p2p_passphrase_len <= 63)
4006 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4008 p2p.passphrase_len = 8;
4010 global->p2p = p2p_init(&p2p);
4011 if (global->p2p == NULL)
4013 global->p2p_init_wpa_s = wpa_s;
4015 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4016 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4018 p2p_add_wps_vendor_extension(
4019 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4022 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4029 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4030 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4032 * This function deinitialize per-interface P2P data.
4034 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4036 if (wpa_s->driver && wpa_s->drv_priv)
4037 wpa_drv_probe_req_report(wpa_s, 0);
4039 if (wpa_s->go_params) {
4040 /* Clear any stored provisioning info */
4041 p2p_clear_provisioning_info(
4043 wpa_s->go_params->peer_device_addr);
4046 os_free(wpa_s->go_params);
4047 wpa_s->go_params = NULL;
4048 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4049 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4050 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4051 wpa_s->p2p_long_listen = 0;
4052 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4053 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4054 wpas_p2p_remove_pending_group_interface(wpa_s);
4055 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4056 wpas_p2p_listen_work_done(wpa_s);
4057 if (wpa_s->p2p_send_action_work) {
4058 os_free(wpa_s->p2p_send_action_work->ctx);
4059 radio_work_done(wpa_s->p2p_send_action_work);
4060 wpa_s->p2p_send_action_work = NULL;
4062 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4064 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4065 wpa_s->p2p_oob_dev_pw = NULL;
4067 os_free(wpa_s->p2p_group_common_freqs);
4068 wpa_s->p2p_group_common_freqs = NULL;
4069 wpa_s->p2p_group_common_freqs_num = 0;
4071 /* TODO: remove group interface from the driver if this wpa_s instance
4072 * is on top of a P2P group interface */
4077 * wpas_p2p_deinit_global - Deinitialize global P2P module
4078 * @global: Pointer to global data from wpa_supplicant_init()
4080 * This function deinitializes the global (per device) P2P module.
4082 static void wpas_p2p_deinit_global(struct wpa_global *global)
4084 struct wpa_supplicant *wpa_s, *tmp;
4086 wpa_s = global->ifaces;
4088 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4090 /* Remove remaining P2P group interfaces */
4091 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4092 wpa_s = wpa_s->next;
4094 tmp = global->ifaces;
4097 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4102 /* Disconnect from the P2P group and deinit the interface */
4103 wpas_p2p_disconnect(tmp);
4107 * Deinit GO data on any possibly remaining interface (if main
4108 * interface is used as GO).
4110 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4111 if (wpa_s->ap_iface)
4112 wpas_p2p_group_deinit(wpa_s);
4115 p2p_deinit(global->p2p);
4117 global->p2p_init_wpa_s = NULL;
4121 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4123 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4124 wpa_s->conf->p2p_no_group_iface)
4125 return 0; /* separate interface disabled per configuration */
4126 if (wpa_s->drv_flags &
4127 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4128 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4129 return 1; /* P2P group requires a new interface in every case
4131 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4132 return 0; /* driver does not support concurrent operations */
4133 if (wpa_s->global->ifaces->next)
4134 return 1; /* more that one interface already in use */
4135 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4136 return 1; /* this interface is already in use */
4141 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4142 const u8 *peer_addr,
4143 enum p2p_wps_method wps_method,
4144 int go_intent, const u8 *own_interface_addr,
4145 unsigned int force_freq, int persistent_group,
4146 struct wpa_ssid *ssid, unsigned int pref_freq)
4148 if (persistent_group && wpa_s->conf->persistent_reconnect)
4149 persistent_group = 2;
4152 * Increase GO config timeout if HT40 is used since it takes some time
4153 * to scan channels for coex purposes before the BSS can be started.
4155 p2p_set_config_timeout(wpa_s->global->p2p,
4156 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4158 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4159 go_intent, own_interface_addr, force_freq,
4160 persistent_group, ssid ? ssid->ssid : NULL,
4161 ssid ? ssid->ssid_len : 0,
4162 wpa_s->p2p_pd_before_go_neg, pref_freq,
4163 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4168 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4169 const u8 *peer_addr,
4170 enum p2p_wps_method wps_method,
4171 int go_intent, const u8 *own_interface_addr,
4172 unsigned int force_freq, int persistent_group,
4173 struct wpa_ssid *ssid, unsigned int pref_freq)
4175 if (persistent_group && wpa_s->conf->persistent_reconnect)
4176 persistent_group = 2;
4178 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4179 go_intent, own_interface_addr, force_freq,
4180 persistent_group, ssid ? ssid->ssid : NULL,
4181 ssid ? ssid->ssid_len : 0, pref_freq,
4182 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4187 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4189 wpa_s->p2p_join_scan_count++;
4190 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4191 wpa_s->p2p_join_scan_count);
4192 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4193 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4194 " for join operationg - stop join attempt",
4195 MAC2STR(wpa_s->pending_join_iface_addr));
4196 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4197 if (wpa_s->p2p_auto_pd) {
4198 wpa_s->p2p_auto_pd = 0;
4199 wpa_msg_global(wpa_s, MSG_INFO,
4200 P2P_EVENT_PROV_DISC_FAILURE
4201 " p2p_dev_addr=" MACSTR " status=N/A",
4202 MAC2STR(wpa_s->pending_join_dev_addr));
4205 wpa_msg_global(wpa_s->parent, MSG_INFO,
4206 P2P_EVENT_GROUP_FORMATION_FAILURE);
4211 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4214 unsigned int num, i;
4215 struct wpa_used_freq_data *freqs;
4217 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4218 /* Multiple channels are supported and not all are in use */
4222 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4223 sizeof(struct wpa_used_freq_data));
4227 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4228 wpa_s->num_multichan_concurrent);
4230 for (i = 0; i < num; i++) {
4231 if (freqs[i].freq == freq) {
4232 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4239 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4248 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4249 const u8 *peer_dev_addr)
4251 struct wpa_bss *bss;
4254 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4257 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4258 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4263 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4265 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4266 "%ld.%06ld (%supdated in last scan)",
4267 bss->last_update.sec, bss->last_update.usec,
4268 updated ? "": "not ");
4274 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4275 struct wpa_scan_results *scan_res)
4277 struct wpa_bss *bss = NULL;
4279 u8 iface_addr[ETH_ALEN];
4281 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4283 if (wpa_s->global->p2p_disabled)
4286 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4287 scan_res ? (int) scan_res->num : -1,
4288 wpa_s->p2p_auto_join ? "auto_" : "");
4291 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4293 if (wpa_s->p2p_auto_pd) {
4294 int join = wpas_p2p_peer_go(wpa_s,
4295 wpa_s->pending_join_dev_addr);
4297 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4298 wpa_s->auto_pd_scan_retry++;
4299 bss = wpa_bss_get_bssid_latest(
4300 wpa_s, wpa_s->pending_join_dev_addr);
4303 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4304 "the peer " MACSTR " at %d MHz",
4305 wpa_s->auto_pd_scan_retry,
4307 pending_join_dev_addr),
4309 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4317 wpa_s->p2p_auto_pd = 0;
4318 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4319 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4320 MAC2STR(wpa_s->pending_join_dev_addr), join);
4321 if (p2p_prov_disc_req(wpa_s->global->p2p,
4322 wpa_s->pending_join_dev_addr, NULL,
4323 wpa_s->pending_pd_config_methods, join,
4324 0, wpa_s->user_initiated_pd) < 0) {
4325 wpa_s->p2p_auto_pd = 0;
4326 wpa_msg_global(wpa_s, MSG_INFO,
4327 P2P_EVENT_PROV_DISC_FAILURE
4328 " p2p_dev_addr=" MACSTR " status=N/A",
4329 MAC2STR(wpa_s->pending_join_dev_addr));
4334 if (wpa_s->p2p_auto_join) {
4335 int join = wpas_p2p_peer_go(wpa_s,
4336 wpa_s->pending_join_dev_addr);
4338 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4339 "running a GO -> use GO Negotiation");
4340 wpa_msg_global(wpa_s->parent, MSG_INFO,
4341 P2P_EVENT_FALLBACK_TO_GO_NEG
4342 "reason=peer-not-running-GO");
4343 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4344 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4345 wpa_s->p2p_persistent_group, 0, 0, 0,
4346 wpa_s->p2p_go_intent,
4347 wpa_s->p2p_connect_freq,
4348 wpa_s->p2p_persistent_id,
4349 wpa_s->p2p_pd_before_go_neg,
4355 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4356 "try to join the group", join ? "" :
4359 wpa_msg_global(wpa_s->parent, MSG_INFO,
4360 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4361 wpa_s->p2p_fallback_to_go_neg = 1;
4365 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4366 wpa_s->pending_join_iface_addr);
4368 p2p_get_interface_addr(wpa_s->global->p2p,
4369 wpa_s->pending_join_dev_addr,
4371 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4372 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4373 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4374 "address for join from " MACSTR " to " MACSTR
4375 " based on newly discovered P2P peer entry",
4376 MAC2STR(wpa_s->pending_join_iface_addr),
4377 MAC2STR(iface_addr));
4378 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4381 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4382 wpa_s->pending_join_iface_addr);
4385 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4386 "from P2P peer table: %d MHz", freq);
4388 if (wpa_s->p2p_join_ssid_len) {
4389 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4390 MACSTR " and SSID %s",
4391 MAC2STR(wpa_s->pending_join_iface_addr),
4392 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4393 wpa_s->p2p_join_ssid_len));
4394 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4395 wpa_s->p2p_join_ssid,
4396 wpa_s->p2p_join_ssid_len);
4399 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4400 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4401 bss = wpa_bss_get_bssid_latest(wpa_s,
4402 wpa_s->pending_join_iface_addr);
4406 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4407 "from BSS table: %d MHz (SSID %s)", freq,
4408 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4413 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4414 wpa_msg_global(wpa_s->parent, MSG_INFO,
4415 P2P_EVENT_GROUP_FORMATION_FAILURE
4416 "reason=FREQ_CONFLICT");
4420 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4421 "prior to joining an existing group (GO " MACSTR
4423 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4424 wpa_s->pending_pd_before_join = 1;
4426 switch (wpa_s->pending_join_wps_method) {
4427 case WPS_PIN_DISPLAY:
4428 method = WPS_CONFIG_KEYPAD;
4430 case WPS_PIN_KEYPAD:
4431 method = WPS_CONFIG_DISPLAY;
4434 method = WPS_CONFIG_PUSHBUTTON;
4441 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4442 wpa_s->pending_join_dev_addr) ==
4445 * We have already performed provision discovery for
4446 * joining the group. Proceed directly to join
4447 * operation without duplicated provision discovery. */
4448 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4449 "with " MACSTR " already done - proceed to "
4451 MAC2STR(wpa_s->pending_join_dev_addr));
4452 wpa_s->pending_pd_before_join = 0;
4456 if (p2p_prov_disc_req(wpa_s->global->p2p,
4457 wpa_s->pending_join_dev_addr,
4459 freq, wpa_s->user_initiated_pd) < 0) {
4460 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4461 "Discovery Request before joining an "
4463 wpa_s->pending_pd_before_join = 0;
4469 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4470 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4471 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4472 wpas_p2p_check_join_scan_limit(wpa_s);
4476 /* Start join operation immediately */
4477 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4481 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4482 const u8 *ssid, size_t ssid_len)
4485 struct wpa_driver_scan_params params;
4486 struct wpabuf *wps_ie, *ies;
4488 int freqs[2] = { 0, 0 };
4490 os_memset(¶ms, 0, sizeof(params));
4492 /* P2P Wildcard SSID */
4493 params.num_ssids = 1;
4494 if (ssid && ssid_len) {
4495 params.ssids[0].ssid = ssid;
4496 params.ssids[0].ssid_len = ssid_len;
4497 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4498 wpa_s->p2p_join_ssid_len = ssid_len;
4500 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4501 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4502 wpa_s->p2p_join_ssid_len = 0;
4505 wpa_s->wps->dev.p2p = 1;
4506 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4507 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4509 if (wps_ie == NULL) {
4510 wpas_p2p_scan_res_join(wpa_s, NULL);
4514 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4515 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4517 wpabuf_free(wps_ie);
4518 wpas_p2p_scan_res_join(wpa_s, NULL);
4521 wpabuf_put_buf(ies, wps_ie);
4522 wpabuf_free(wps_ie);
4524 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4526 params.p2p_probe = 1;
4527 params.extra_ies = wpabuf_head(ies);
4528 params.extra_ies_len = wpabuf_len(ies);
4533 * If freq is not provided, check the operating freq of the GO
4534 * and use a single channel scan on if possible.
4536 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4537 wpa_s->pending_join_iface_addr);
4543 params.freqs = freqs;
4547 * Run a scan to update BSS table and start Provision Discovery once
4548 * the new scan results become available.
4550 ret = wpa_drv_scan(wpa_s, ¶ms);
4552 os_get_reltime(&wpa_s->scan_trigger_time);
4553 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4554 wpa_s->own_scan_requested = 1;
4560 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4562 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4563 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4564 wpas_p2p_check_join_scan_limit(wpa_s);
4569 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4571 struct wpa_supplicant *wpa_s = eloop_ctx;
4572 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4576 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4577 const u8 *dev_addr, enum p2p_wps_method wps_method,
4578 int auto_join, int op_freq,
4579 const u8 *ssid, size_t ssid_len)
4581 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4582 MACSTR " dev " MACSTR " op_freq=%d)%s",
4583 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4584 auto_join ? " (auto_join)" : "");
4585 if (ssid && ssid_len) {
4586 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4587 wpa_ssid_txt(ssid, ssid_len));
4590 wpa_s->p2p_auto_pd = 0;
4591 wpa_s->p2p_auto_join = !!auto_join;
4592 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4593 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4594 wpa_s->pending_join_wps_method = wps_method;
4596 /* Make sure we are not running find during connection establishment */
4597 wpas_p2p_stop_find(wpa_s);
4599 wpa_s->p2p_join_scan_count = 0;
4600 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4605 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4606 const u8 *ssid, size_t ssid_len)
4608 struct wpa_supplicant *group;
4609 struct p2p_go_neg_results res;
4610 struct wpa_bss *bss;
4612 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4615 if (group != wpa_s) {
4616 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4617 sizeof(group->p2p_pin));
4618 group->p2p_wps_method = wpa_s->p2p_wps_method;
4621 * Need to mark the current interface for p2p_group_formation
4622 * when a separate group interface is not used. This is needed
4623 * to allow p2p_cancel stop a pending p2p_connect-join.
4624 * wpas_p2p_init_group_interface() addresses this for the case
4625 * where a separate group interface is used.
4627 wpa_s->global->p2p_group_formation = wpa_s;
4630 group->p2p_in_provisioning = 1;
4631 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4633 os_memset(&res, 0, sizeof(res));
4634 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4635 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4637 res.wps_method = wpa_s->pending_join_wps_method;
4638 if (freq && ssid && ssid_len) {
4640 res.ssid_len = ssid_len;
4641 os_memcpy(res.ssid, ssid, ssid_len);
4643 bss = wpa_bss_get_bssid_latest(wpa_s,
4644 wpa_s->pending_join_iface_addr);
4646 res.freq = bss->freq;
4647 res.ssid_len = bss->ssid_len;
4648 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4649 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4651 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4655 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4656 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4658 wpa_drv_cancel_remain_on_channel(wpa_s);
4659 wpa_s->off_channel_freq = 0;
4660 wpa_s->roc_waiting_drv_freq = 0;
4662 wpas_start_wps_enrollee(group, &res);
4665 * Allow a longer timeout for join-a-running-group than normal 15
4666 * second group formation timeout since the GO may not have authorized
4667 * our connection yet.
4669 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4670 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4677 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4678 int *force_freq, int *pref_freq, int go)
4680 struct wpa_used_freq_data *freqs;
4681 int res, best_freq, num_unused;
4682 unsigned int freq_in_use = 0, num, i;
4684 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4685 sizeof(struct wpa_used_freq_data));
4689 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4690 wpa_s->num_multichan_concurrent);
4693 * It is possible that the total number of used frequencies is bigger
4694 * than the number of frequencies used for P2P, so get the system wide
4695 * number of unused frequencies.
4697 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4699 wpa_printf(MSG_DEBUG,
4700 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4701 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4706 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4708 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4710 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4711 ieee80211_is_dfs(freq)) {
4713 * If freq is a DFS channel and DFS is offloaded
4714 * to the driver, allow P2P GO to use it.
4716 wpa_printf(MSG_DEBUG,
4717 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4720 wpa_printf(MSG_DEBUG,
4721 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4728 for (i = 0; i < num; i++) {
4729 if (freqs[i].freq == freq)
4733 if (num_unused <= 0 && !freq_in_use) {
4734 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4739 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4740 "requested channel (%u MHz)", freq);
4745 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4747 /* We have a candidate frequency to use */
4748 if (best_freq > 0) {
4749 if (*pref_freq == 0 && num_unused > 0) {
4750 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4752 *pref_freq = best_freq;
4754 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4756 *force_freq = best_freq;
4758 } else if (num_unused > 0) {
4759 wpa_printf(MSG_DEBUG,
4760 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4763 wpa_printf(MSG_DEBUG,
4764 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4778 * wpas_p2p_connect - Request P2P Group Formation to be started
4779 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4780 * @peer_addr: Address of the peer P2P Device
4781 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4782 * @persistent_group: Whether to create a persistent group
4783 * @auto_join: Whether to select join vs. GO Negotiation automatically
4784 * @join: Whether to join an existing group (as a client) instead of starting
4785 * Group Owner negotiation; @peer_addr is BSSID in that case
4786 * @auth: Whether to only authorize the connection instead of doing that and
4787 * initiating Group Owner negotiation
4788 * @go_intent: GO Intent or -1 to use default
4789 * @freq: Frequency for the group or 0 for auto-selection
4790 * @persistent_id: Persistent group credentials to use for forcing GO
4791 * parameters or -1 to generate new values (SSID/passphrase)
4792 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4793 * interoperability workaround when initiating group formation
4794 * @ht40: Start GO with 40 MHz channel width
4795 * @vht: Start GO with VHT support
4796 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4797 * failure, -2 on failure due to channel not currently available,
4798 * -3 if forced channel is not supported
4800 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4801 const char *pin, enum p2p_wps_method wps_method,
4802 int persistent_group, int auto_join, int join, int auth,
4803 int go_intent, int freq, int persistent_id, int pd,
4806 int force_freq = 0, pref_freq = 0;
4808 enum wpa_driver_if_type iftype;
4810 struct wpa_ssid *ssid = NULL;
4812 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4815 if (persistent_id >= 0) {
4816 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4817 if (ssid == NULL || ssid->disabled != 2 ||
4818 ssid->mode != WPAS_MODE_P2P_GO)
4822 os_free(wpa_s->global->add_psk);
4823 wpa_s->global->add_psk = NULL;
4825 wpa_s->global->p2p_fail_on_wps_complete = 0;
4826 wpa_s->global->pending_p2ps_group = 0;
4829 go_intent = wpa_s->conf->p2p_go_intent;
4832 wpa_s->p2p_long_listen = 0;
4834 wpa_s->p2p_wps_method = wps_method;
4835 wpa_s->p2p_persistent_group = !!persistent_group;
4836 wpa_s->p2p_persistent_id = persistent_id;
4837 wpa_s->p2p_go_intent = go_intent;
4838 wpa_s->p2p_connect_freq = freq;
4839 wpa_s->p2p_fallback_to_go_neg = 0;
4840 wpa_s->p2p_pd_before_go_neg = !!pd;
4841 wpa_s->p2p_go_ht40 = !!ht40;
4842 wpa_s->p2p_go_vht = !!vht;
4845 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4846 else if (wps_method == WPS_PIN_DISPLAY) {
4847 ret = wps_generate_pin();
4848 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
4850 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
4851 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
4852 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4855 wpa_s->p2p_pin[0] = '\0';
4857 if (join || auto_join) {
4858 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
4860 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4861 "connect a running group from " MACSTR,
4862 MAC2STR(peer_addr));
4863 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4866 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
4867 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4869 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4870 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4874 os_get_reltime(&wpa_s->p2p_auto_started);
4875 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4877 wpa_s->p2p_auto_started.sec,
4878 wpa_s->p2p_auto_started.usec);
4880 wpa_s->user_initiated_pd = 1;
4881 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
4882 auto_join, freq, NULL, 0) < 0)
4887 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4891 wpas_p2p_set_own_freq_preference(wpa_s,
4892 force_freq ? force_freq : pref_freq);
4894 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4896 if (wpa_s->create_p2p_iface) {
4897 /* Prepare to add a new interface for the group */
4898 iftype = WPA_IF_P2P_GROUP;
4899 if (go_intent == 15)
4900 iftype = WPA_IF_P2P_GO;
4901 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4902 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4903 "interface for the group");
4907 if_addr = wpa_s->pending_interface_addr;
4909 if_addr = wpa_s->own_addr;
4912 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
4914 force_freq, persistent_group, ssid,
4920 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4921 go_intent, if_addr, force_freq,
4922 persistent_group, ssid, pref_freq) < 0) {
4923 if (wpa_s->create_p2p_iface)
4924 wpas_p2p_remove_pending_group_interface(wpa_s);
4932 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4933 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4934 * @freq: Frequency of the channel in MHz
4935 * @duration: Duration of the stay on the channel in milliseconds
4937 * This callback is called when the driver indicates that it has started the
4938 * requested remain-on-channel duration.
4940 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4941 unsigned int freq, unsigned int duration)
4943 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4945 wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
4946 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4947 wpa_s->roc_waiting_drv_freq, freq, duration);
4948 if (wpa_s->off_channel_freq &&
4949 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4950 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4951 wpa_s->pending_listen_duration);
4952 wpa_s->pending_listen_freq = 0;
4954 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
4955 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4961 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
4963 /* Limit maximum Listen state time based on driver limitation. */
4964 if (timeout > wpa_s->max_remain_on_chan)
4965 timeout = wpa_s->max_remain_on_chan;
4967 return p2p_listen(wpa_s->global->p2p, timeout);
4972 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4973 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4974 * @freq: Frequency of the channel in MHz
4976 * This callback is called when the driver indicates that a remain-on-channel
4977 * operation has been completed, i.e., the duration on the requested channel
4980 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4983 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
4984 "(p2p_long_listen=%d ms pending_action_tx=%p)",
4985 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
4986 wpas_p2p_listen_work_done(wpa_s);
4987 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4989 if (wpa_s->p2p_long_listen > 0)
4990 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
4991 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4992 return; /* P2P module started a new operation */
4993 if (offchannel_pending_action_tx(wpa_s))
4995 if (wpa_s->p2p_long_listen > 0) {
4996 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
4997 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5000 * When listen duration is over, stop listen & update p2p_state
5003 p2p_stop_listen(wpa_s->global->p2p);
5009 * wpas_p2p_group_remove - Remove a P2P group
5010 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5011 * @ifname: Network interface name of the group interface or "*" to remove all
5013 * Returns: 0 on success, -1 on failure
5015 * This function is used to remove a P2P group. This can be used to disconnect
5016 * from a group in which the local end is a P2P Client or to end a P2P Group in
5017 * case the local end is the Group Owner. If a virtual network interface was
5018 * created for this group, that interface will be removed. Otherwise, only the
5019 * configured P2P group network will be removed from the interface.
5021 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5023 struct wpa_global *global = wpa_s->global;
5024 struct wpa_supplicant *calling_wpa_s = wpa_s;
5026 if (os_strcmp(ifname, "*") == 0) {
5027 struct wpa_supplicant *prev;
5028 wpa_s = global->ifaces;
5031 wpa_s = wpa_s->next;
5032 if (prev->p2p_group_interface !=
5033 NOT_P2P_GROUP_INTERFACE ||
5034 (prev->current_ssid &&
5035 prev->current_ssid->p2p_group))
5036 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5041 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5042 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5046 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5050 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5055 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5057 if (wpa_s->best_24_freq > 0 &&
5058 p2p_supported_freq_go(wpa_s->global->p2p,
5059 wpa_s->best_24_freq)) {
5060 freq = wpa_s->best_24_freq;
5061 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5062 "channel: %d MHz", freq);
5064 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5066 freq = 2412 + (r % 3) * 25;
5067 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5068 "channel: %d MHz", freq);
5073 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5075 if (wpa_s->best_5_freq > 0 &&
5076 p2p_supported_freq_go(wpa_s->global->p2p,
5077 wpa_s->best_5_freq)) {
5078 freq = wpa_s->best_5_freq;
5079 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5080 "channel: %d MHz", freq);
5082 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5084 freq = 5180 + (r % 4) * 20;
5085 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5086 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5087 "5 GHz channel for P2P group");
5090 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5091 "channel: %d MHz", freq);
5095 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5096 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5097 ieee80211_is_dfs(freq)) {
5099 * If freq is a DFS channel and DFS is offloaded to the
5100 * driver, allow P2P GO to use it.
5102 wpa_printf(MSG_DEBUG, "P2P: "
5103 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5107 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5108 "(%u MHz) is not supported for P2P uses",
5117 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5118 struct p2p_go_neg_results *params,
5119 const struct p2p_channels *channels)
5123 /* first try some random selection of the social channels */
5124 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5127 for (i = 0; i < 3; i++) {
5128 params->freq = 2412 + ((r + i) % 3) * 25;
5129 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5130 freq_included(channels, params->freq) &&
5131 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5135 /* try all channels in reg. class 81 */
5136 for (i = 0; i < 11; i++) {
5137 params->freq = 2412 + i * 5;
5138 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5139 freq_included(channels, params->freq) &&
5140 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5144 /* try all channels in operating class 115 */
5145 for (i = 0; i < 4; i++) {
5146 params->freq = 5180 + i * 20;
5147 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5148 freq_included(channels, params->freq) &&
5149 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5153 /* try all channels in operating class 124 */
5154 for (i = 0; i < 4; i++) {
5155 params->freq = 5745 + i * 20;
5156 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5157 freq_included(channels, params->freq) &&
5158 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5162 /* try social channel class 180 channel 2 */
5163 params->freq = 58320 + 1 * 2160;
5164 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5165 freq_included(channels, params->freq) &&
5166 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5169 /* try all channels in reg. class 180 */
5170 for (i = 0; i < 4; i++) {
5171 params->freq = 58320 + i * 2160;
5172 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5173 freq_included(channels, params->freq) &&
5174 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5178 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5181 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5187 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5188 struct p2p_go_neg_results *params,
5189 int freq, int ht40, int vht,
5190 const struct p2p_channels *channels)
5192 struct wpa_used_freq_data *freqs;
5193 unsigned int pref_freq, cand_freq;
5194 unsigned int num, i;
5196 os_memset(params, 0, sizeof(*params));
5197 params->role_go = 1;
5198 params->ht40 = ht40;
5201 if (!freq_included(channels, freq)) {
5202 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5206 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5207 "frequency %d MHz", freq);
5208 params->freq = freq;
5209 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5210 wpa_s->conf->p2p_oper_channel >= 1 &&
5211 wpa_s->conf->p2p_oper_channel <= 11 &&
5212 freq_included(channels,
5213 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5214 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5215 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5216 "frequency %d MHz", params->freq);
5217 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5218 wpa_s->conf->p2p_oper_reg_class == 116 ||
5219 wpa_s->conf->p2p_oper_reg_class == 117 ||
5220 wpa_s->conf->p2p_oper_reg_class == 124 ||
5221 wpa_s->conf->p2p_oper_reg_class == 126 ||
5222 wpa_s->conf->p2p_oper_reg_class == 127) &&
5223 freq_included(channels,
5224 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
5225 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5226 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5227 "frequency %d MHz", params->freq);
5228 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5229 wpa_s->best_overall_freq > 0 &&
5230 p2p_supported_freq_go(wpa_s->global->p2p,
5231 wpa_s->best_overall_freq) &&
5232 freq_included(channels, wpa_s->best_overall_freq)) {
5233 params->freq = wpa_s->best_overall_freq;
5234 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5235 "channel %d MHz", params->freq);
5236 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5237 wpa_s->best_24_freq > 0 &&
5238 p2p_supported_freq_go(wpa_s->global->p2p,
5239 wpa_s->best_24_freq) &&
5240 freq_included(channels, wpa_s->best_24_freq)) {
5241 params->freq = wpa_s->best_24_freq;
5242 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5243 "channel %d MHz", params->freq);
5244 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5245 wpa_s->best_5_freq > 0 &&
5246 p2p_supported_freq_go(wpa_s->global->p2p,
5247 wpa_s->best_5_freq) &&
5248 freq_included(channels, wpa_s->best_5_freq)) {
5249 params->freq = wpa_s->best_5_freq;
5250 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5251 "channel %d MHz", params->freq);
5252 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5254 params->freq = pref_freq;
5255 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5256 "channels", params->freq);
5258 /* no preference, select some channel */
5259 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
5263 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5264 sizeof(struct wpa_used_freq_data));
5268 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5269 wpa_s->num_multichan_concurrent);
5271 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5273 /* First try the best used frequency if possible */
5274 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5275 params->freq = cand_freq;
5277 /* Try any of the used frequencies */
5278 for (i = 0; i < num; i++) {
5279 if (freq_included(channels, freqs[i].freq)) {
5280 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5282 params->freq = freqs[i].freq;
5288 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5289 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
5293 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5297 for (i = 0; i < num; i++) {
5298 if (freqs[i].freq == freq)
5303 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5305 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5309 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5319 static struct wpa_supplicant *
5320 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5323 struct wpa_supplicant *group_wpa_s;
5325 if (!wpas_p2p_create_iface(wpa_s)) {
5326 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5328 wpa_s->p2p_first_connection_timeout = 0;
5332 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5333 WPA_IF_P2P_CLIENT) < 0) {
5334 wpa_msg_global(wpa_s, MSG_ERROR,
5335 "P2P: Failed to add group interface");
5338 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5339 if (group_wpa_s == NULL) {
5340 wpa_msg_global(wpa_s, MSG_ERROR,
5341 "P2P: Failed to initialize group interface");
5342 wpas_p2p_remove_pending_group_interface(wpa_s);
5346 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5347 group_wpa_s->ifname);
5348 group_wpa_s->p2p_first_connection_timeout = 0;
5354 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5355 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5356 * @persistent_group: Whether to create a persistent group
5357 * @freq: Frequency for the group or 0 to indicate no hardcoding
5358 * @ht40: Start GO with 40 MHz channel width
5359 * @vht: Start GO with VHT support
5360 * Returns: 0 on success, -1 on failure
5362 * This function creates a new P2P group with the local end as the Group Owner,
5363 * i.e., without using Group Owner Negotiation.
5365 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5366 int freq, int ht40, int vht)
5368 struct p2p_go_neg_results params;
5370 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5373 os_free(wpa_s->global->add_psk);
5374 wpa_s->global->add_psk = NULL;
5376 /* Make sure we are not running find during connection establishment */
5377 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5378 wpas_p2p_stop_find_oper(wpa_s);
5380 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5384 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5387 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5388 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5389 ieee80211_is_dfs(params.freq)) {
5391 * If freq is a DFS channel and DFS is offloaded to the
5392 * driver, allow P2P GO to use it.
5394 wpa_printf(MSG_DEBUG,
5395 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5396 __func__, params.freq);
5398 wpa_printf(MSG_DEBUG,
5399 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5404 p2p_go_params(wpa_s->global->p2p, ¶ms);
5405 params.persistent_group = persistent_group;
5407 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5410 wpas_start_wps_go(wpa_s, ¶ms, 0);
5416 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5417 struct wpa_ssid *params, int addr_allocated,
5420 struct wpa_ssid *ssid;
5422 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5425 wpa_s->p2p_last_4way_hs_fail = NULL;
5427 wpa_supplicant_ap_deinit(wpa_s);
5429 ssid = wpa_config_add_network(wpa_s->conf);
5432 wpa_config_set_network_defaults(ssid);
5433 ssid->temporary = 1;
5434 ssid->proto = WPA_PROTO_RSN;
5435 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5436 ssid->group_cipher = WPA_CIPHER_CCMP;
5437 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5438 ssid->ssid = os_malloc(params->ssid_len);
5439 if (ssid->ssid == NULL) {
5440 wpa_config_remove_network(wpa_s->conf, ssid->id);
5443 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5444 ssid->ssid_len = params->ssid_len;
5445 ssid->p2p_group = 1;
5446 ssid->export_keys = 1;
5447 if (params->psk_set) {
5448 os_memcpy(ssid->psk, params->psk, 32);
5451 if (params->passphrase)
5452 ssid->passphrase = os_strdup(params->passphrase);
5454 wpa_s->show_group_started = 1;
5455 wpa_s->p2p_in_invitation = 1;
5456 wpa_s->p2p_invite_go_freq = freq;
5458 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5460 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5461 wpas_p2p_group_formation_timeout,
5462 wpa_s->parent, NULL);
5463 wpa_supplicant_select_network(wpa_s, ssid);
5469 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5470 struct wpa_ssid *ssid, int addr_allocated,
5471 int force_freq, int neg_freq, int ht40,
5472 int vht, const struct p2p_channels *channels,
5473 int connection_timeout)
5475 struct p2p_go_neg_results params;
5478 if (ssid->disabled != 2 || ssid->ssid == NULL)
5481 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5482 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5483 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5488 os_free(wpa_s->global->add_psk);
5489 wpa_s->global->add_psk = NULL;
5491 /* Make sure we are not running find during connection establishment */
5492 wpas_p2p_stop_find_oper(wpa_s);
5494 wpa_s->p2p_fallback_to_go_neg = 0;
5496 if (ssid->mode == WPAS_MODE_P2P_GO) {
5497 if (force_freq > 0) {
5498 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5502 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5504 (freq > 0 && !freq_included(channels, freq)))
5507 } else if (ssid->mode == WPAS_MODE_INFRA) {
5509 if (freq <= 0 || !freq_included(channels, freq)) {
5510 struct os_reltime now;
5511 struct wpa_bss *bss =
5512 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5514 os_get_reltime(&now);
5516 !os_reltime_expired(&now, &bss->last_update, 5) &&
5517 freq_included(channels, bss->freq))
5523 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5528 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5532 params.psk_set = ssid->psk_set;
5534 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5535 if (ssid->passphrase) {
5536 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5537 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5538 "persistent group");
5541 os_strlcpy(params.passphrase, ssid->passphrase,
5542 sizeof(params.passphrase));
5544 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5545 params.ssid_len = ssid->ssid_len;
5546 params.persistent_group = 1;
5548 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5552 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5554 wpa_s->p2p_first_connection_timeout = connection_timeout;
5555 wpas_start_wps_go(wpa_s, ¶ms, 0);
5561 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5562 struct wpabuf *proberesp_ies)
5564 struct wpa_supplicant *wpa_s = ctx;
5565 if (wpa_s->ap_iface) {
5566 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5567 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5568 wpabuf_free(beacon_ies);
5569 wpabuf_free(proberesp_ies);
5573 wpabuf_free(hapd->p2p_beacon_ie);
5574 hapd->p2p_beacon_ie = beacon_ies;
5576 wpabuf_free(hapd->p2p_probe_resp_ie);
5577 hapd->p2p_probe_resp_ie = proberesp_ies;
5579 wpabuf_free(beacon_ies);
5580 wpabuf_free(proberesp_ies);
5582 wpa_supplicant_ap_update_beacon(wpa_s);
5586 static void wpas_p2p_idle_update(void *ctx, int idle)
5588 struct wpa_supplicant *wpa_s = ctx;
5589 if (!wpa_s->ap_iface)
5591 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5593 if (wpa_s->global->p2p_fail_on_wps_complete &&
5594 wpa_s->p2p_in_provisioning) {
5595 wpas_p2p_grpform_fail_after_wps(wpa_s);
5598 wpas_p2p_set_group_idle_timeout(wpa_s);
5600 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5604 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5605 struct wpa_ssid *ssid)
5607 struct p2p_group *group;
5608 struct p2p_group_config *cfg;
5610 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5613 cfg = os_zalloc(sizeof(*cfg));
5617 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5618 cfg->persistent_group = 2;
5619 else if (ssid->p2p_persistent_group)
5620 cfg->persistent_group = 1;
5621 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5622 if (wpa_s->max_stations &&
5623 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5624 cfg->max_clients = wpa_s->max_stations;
5626 cfg->max_clients = wpa_s->conf->max_num_sta;
5627 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5628 cfg->ssid_len = ssid->ssid_len;
5629 cfg->freq = ssid->frequency;
5630 cfg->cb_ctx = wpa_s;
5631 cfg->ie_update = wpas_p2p_ie_update;
5632 cfg->idle_update = wpas_p2p_idle_update;
5634 group = p2p_group_init(wpa_s->global->p2p, cfg);
5637 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5638 p2p_group_notif_formation_done(group);
5639 wpa_s->p2p_group = group;
5644 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5647 struct wpa_ssid *ssid = wpa_s->current_ssid;
5649 if (!wpa_s->p2p_in_provisioning) {
5650 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5651 "provisioning not in progress");
5655 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5656 u8 go_dev_addr[ETH_ALEN];
5657 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5658 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5660 /* Clear any stored provisioning info */
5661 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5664 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5666 wpa_s->p2p_go_group_formation_completed = 1;
5667 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5669 * Use a separate timeout for initial data connection to
5670 * complete to allow the group to be removed automatically if
5671 * something goes wrong in this step before the P2P group idle
5672 * timeout mechanism is taken into use.
5674 wpa_dbg(wpa_s, MSG_DEBUG,
5675 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5676 P2P_MAX_INITIAL_CONN_WAIT);
5677 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5678 wpas_p2p_group_formation_timeout,
5679 wpa_s->parent, NULL);
5682 * Use a separate timeout for initial data connection to
5683 * complete to allow the group to be removed automatically if
5684 * the client does not complete data connection successfully.
5686 wpa_dbg(wpa_s, MSG_DEBUG,
5687 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5688 P2P_MAX_INITIAL_CONN_WAIT_GO);
5689 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5690 wpas_p2p_group_formation_timeout,
5691 wpa_s->parent, NULL);
5693 * Complete group formation on first successful data connection
5695 wpa_s->p2p_go_group_formation_completed = 0;
5697 if (wpa_s->global->p2p)
5698 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5699 wpas_group_formation_completed(wpa_s, 1);
5703 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5704 struct wps_event_fail *fail)
5706 if (!wpa_s->p2p_in_provisioning) {
5707 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5708 "provisioning not in progress");
5712 if (wpa_s->go_params) {
5713 p2p_clear_provisioning_info(
5715 wpa_s->go_params->peer_device_addr);
5718 wpas_notify_p2p_wps_failed(wpa_s, fail);
5720 if (wpa_s == wpa_s->global->p2p_group_formation) {
5722 * Allow some time for the failed WPS negotiation exchange to
5723 * complete, but remove the group since group formation cannot
5724 * succeed after provisioning failure.
5726 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5727 wpa_s->global->p2p_fail_on_wps_complete = 1;
5728 eloop_deplete_timeout(0, 50000,
5729 wpas_p2p_group_formation_timeout,
5730 wpa_s->parent, NULL);
5735 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5737 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5738 !wpa_s->p2p_in_provisioning)
5741 wpas_p2p_grpform_fail_after_wps(wpa_s);
5747 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5748 const char *config_method,
5749 enum wpas_p2p_prov_disc_use use,
5750 struct p2ps_provision *p2ps_prov)
5754 wpa_s->global->pending_p2ps_group = 0;
5755 wpa_s->p2p_fallback_to_go_neg = 0;
5756 wpa_s->pending_pd_use = NORMAL_PD;
5757 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
5758 p2ps_prov->conncap = p2ps_group_capability(
5759 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
5760 wpa_printf(MSG_DEBUG,
5761 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
5762 __func__, p2ps_prov->conncap,
5763 p2ps_prov->adv_id, p2ps_prov->conncap,
5764 p2ps_prov->status, p2ps_prov->info);
5767 } else if (os_strncmp(config_method, "display", 7) == 0)
5768 config_methods = WPS_CONFIG_DISPLAY;
5769 else if (os_strncmp(config_method, "keypad", 6) == 0)
5770 config_methods = WPS_CONFIG_KEYPAD;
5771 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5772 os_strncmp(config_method, "pushbutton", 10) == 0)
5773 config_methods = WPS_CONFIG_PUSHBUTTON;
5775 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5780 if (use == WPAS_P2P_PD_AUTO) {
5781 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5782 wpa_s->pending_pd_config_methods = config_methods;
5783 wpa_s->p2p_auto_pd = 1;
5784 wpa_s->p2p_auto_join = 0;
5785 wpa_s->pending_pd_before_join = 0;
5786 wpa_s->auto_pd_scan_retry = 0;
5787 wpas_p2p_stop_find(wpa_s);
5788 wpa_s->p2p_join_scan_count = 0;
5789 os_get_reltime(&wpa_s->p2p_auto_started);
5790 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5791 wpa_s->p2p_auto_started.sec,
5792 wpa_s->p2p_auto_started.usec);
5793 wpas_p2p_join_scan(wpa_s, NULL);
5797 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
5802 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
5803 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5808 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5811 return p2p_scan_result_text(ies, ies_len, buf, end);
5815 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5817 if (!offchannel_pending_action_tx(wpa_s))
5820 wpas_p2p_action_tx_clear(wpa_s);
5822 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5823 "operation request");
5824 offchannel_clear_pending_action_tx(wpa_s);
5828 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
5829 enum p2p_discovery_type type,
5830 unsigned int num_req_dev_types, const u8 *req_dev_types,
5831 const u8 *dev_id, unsigned int search_delay,
5832 u8 seek_cnt, const char **seek_string, int freq)
5834 wpas_p2p_clear_pending_action_tx(wpa_s);
5835 wpa_s->p2p_long_listen = 0;
5837 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
5838 wpa_s->p2p_in_provisioning)
5841 wpa_supplicant_cancel_sched_scan(wpa_s);
5843 return p2p_find(wpa_s->global->p2p, timeout, type,
5844 num_req_dev_types, req_dev_types, dev_id,
5845 search_delay, seek_cnt, seek_string, freq);
5849 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
5850 struct wpa_scan_results *scan_res)
5852 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
5854 if (wpa_s->p2p_scan_work) {
5855 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
5856 wpa_s->p2p_scan_work = NULL;
5857 radio_work_done(work);
5860 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5864 * Indicate that results have been processed so that the P2P module can
5865 * continue pending tasks.
5867 p2p_scan_res_handled(wpa_s->global->p2p);
5871 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
5873 wpas_p2p_clear_pending_action_tx(wpa_s);
5874 wpa_s->p2p_long_listen = 0;
5875 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5876 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5878 if (wpa_s->global->p2p)
5879 p2p_stop_find(wpa_s->global->p2p);
5881 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
5882 wpa_printf(MSG_DEBUG,
5883 "P2P: Do not consider the scan results after stop_find");
5884 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
5889 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5891 wpas_p2p_stop_find_oper(wpa_s);
5892 if (!wpa_s->global->pending_group_iface_for_p2ps)
5893 wpas_p2p_remove_pending_group_interface(wpa_s);
5897 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5899 struct wpa_supplicant *wpa_s = eloop_ctx;
5900 wpa_s->p2p_long_listen = 0;
5904 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5908 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5911 wpa_supplicant_cancel_sched_scan(wpa_s);
5912 wpas_p2p_clear_pending_action_tx(wpa_s);
5916 * This is a request for unlimited Listen state. However, at
5917 * least for now, this is mapped to a Listen state for one
5922 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5923 wpa_s->p2p_long_listen = 0;
5926 * Stop previous find/listen operation to avoid trying to request a new
5927 * remain-on-channel operation while the driver is still running the
5930 if (wpa_s->global->p2p)
5931 p2p_stop_find(wpa_s->global->p2p);
5933 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5934 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
5935 wpa_s->p2p_long_listen = timeout * 1000;
5936 eloop_register_timeout(timeout, 0,
5937 wpas_p2p_long_listen_timeout,
5945 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
5946 u8 *buf, size_t len, int p2p_group)
5948 struct wpabuf *p2p_ie;
5951 if (wpa_s->global->p2p_disabled)
5953 if (wpa_s->conf->p2p_disabled)
5955 if (wpa_s->global->p2p == NULL)
5960 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5961 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5963 wpabuf_free(p2p_ie);
5969 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
5970 const u8 *dst, const u8 *bssid,
5971 const u8 *ie, size_t ie_len, int ssi_signal)
5973 if (wpa_s->global->p2p_disabled)
5975 if (wpa_s->global->p2p == NULL)
5978 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5980 case P2P_PREQ_NOT_P2P:
5981 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5984 case P2P_PREQ_MALFORMED:
5985 case P2P_PREQ_NOT_LISTEN:
5986 case P2P_PREQ_NOT_PROCESSED:
5987 default: /* make gcc happy */
5989 case P2P_PREQ_PROCESSED:
5995 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5996 const u8 *sa, const u8 *bssid,
5997 u8 category, const u8 *data, size_t len, int freq)
5999 if (wpa_s->global->p2p_disabled)
6001 if (wpa_s->global->p2p == NULL)
6004 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6009 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6011 if (wpa_s->global->p2p_disabled)
6013 if (wpa_s->global->p2p == NULL)
6016 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6020 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6022 p2p_group_deinit(wpa_s->p2p_group);
6023 wpa_s->p2p_group = NULL;
6025 wpa_s->ap_configured_cb = NULL;
6026 wpa_s->ap_configured_cb_ctx = NULL;
6027 wpa_s->ap_configured_cb_data = NULL;
6028 wpa_s->connect_without_scan = NULL;
6032 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6034 wpa_s->p2p_long_listen = 0;
6036 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6039 return p2p_reject(wpa_s->global->p2p, addr);
6043 /* Invite to reinvoke a persistent group */
6044 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6045 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6046 int ht40, int vht, int pref_freq)
6048 enum p2p_invite_role role;
6052 int no_pref_freq_given = pref_freq == 0;
6054 wpa_s->global->p2p_invite_group = NULL;
6056 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6058 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6060 wpa_s->p2p_persistent_go_freq = freq;
6061 wpa_s->p2p_go_ht40 = !!ht40;
6062 if (ssid->mode == WPAS_MODE_P2P_GO) {
6063 role = P2P_INVITE_ROLE_GO;
6064 if (peer_addr == NULL) {
6065 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6066 "address in invitation command");
6069 if (wpas_p2p_create_iface(wpa_s)) {
6070 if (wpas_p2p_add_group_interface(wpa_s,
6071 WPA_IF_P2P_GO) < 0) {
6072 wpa_printf(MSG_ERROR, "P2P: Failed to "
6073 "allocate a new interface for the "
6077 bssid = wpa_s->pending_interface_addr;
6079 bssid = wpa_s->own_addr;
6081 role = P2P_INVITE_ROLE_CLIENT;
6082 peer_addr = ssid->bssid;
6084 wpa_s->pending_invite_ssid_id = ssid->id;
6086 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6087 role == P2P_INVITE_ROLE_GO);
6091 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6094 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6095 no_pref_freq_given && pref_freq > 0 &&
6096 wpa_s->num_multichan_concurrent > 1 &&
6097 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6098 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6104 * Stop any find/listen operations before invitation and possibly
6105 * connection establishment.
6107 wpas_p2p_stop_find_oper(wpa_s);
6109 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6110 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6115 /* Invite to join an active group */
6116 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6117 const u8 *peer_addr, const u8 *go_dev_addr)
6119 struct wpa_global *global = wpa_s->global;
6120 enum p2p_invite_role role;
6122 struct wpa_ssid *ssid;
6124 int freq = 0, force_freq = 0, pref_freq = 0;
6127 wpa_s->p2p_persistent_go_freq = 0;
6128 wpa_s->p2p_go_ht40 = 0;
6129 wpa_s->p2p_go_vht = 0;
6131 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6132 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6135 if (wpa_s == NULL) {
6136 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6140 ssid = wpa_s->current_ssid;
6142 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6147 wpa_s->global->p2p_invite_group = wpa_s;
6148 persistent = ssid->p2p_persistent_group &&
6149 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6150 ssid->ssid, ssid->ssid_len);
6152 if (ssid->mode == WPAS_MODE_P2P_GO) {
6153 role = P2P_INVITE_ROLE_ACTIVE_GO;
6154 bssid = wpa_s->own_addr;
6155 if (go_dev_addr == NULL)
6156 go_dev_addr = wpa_s->global->p2p_dev_addr;
6157 freq = ssid->frequency;
6159 role = P2P_INVITE_ROLE_CLIENT;
6160 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6161 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6162 "invite to current group");
6165 bssid = wpa_s->bssid;
6166 if (go_dev_addr == NULL &&
6167 !is_zero_ether_addr(wpa_s->go_dev_addr))
6168 go_dev_addr = wpa_s->go_dev_addr;
6169 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6170 (int) wpa_s->assoc_freq;
6172 wpa_s->parent->pending_invite_ssid_id = -1;
6174 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6177 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6178 role == P2P_INVITE_ROLE_ACTIVE_GO);
6181 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6183 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6184 ssid->ssid, ssid->ssid_len, force_freq,
6185 go_dev_addr, persistent, pref_freq, -1);
6189 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6191 struct wpa_ssid *ssid = wpa_s->current_ssid;
6192 u8 go_dev_addr[ETH_ALEN];
6193 int network_id = -1;
6199 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6200 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6201 wpa_s->parent, NULL);
6204 if (!wpa_s->show_group_started || !ssid)
6207 wpa_s->show_group_started = 0;
6209 os_memset(go_dev_addr, 0, ETH_ALEN);
6210 if (ssid->bssid_set)
6211 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6212 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6214 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6216 if (wpa_s->global->p2p_group_formation == wpa_s)
6217 wpa_s->global->p2p_group_formation = NULL;
6219 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6220 (int) wpa_s->assoc_freq;
6223 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6226 res = os_snprintf(ip_addr, sizeof(ip_addr),
6227 " ip_addr=%u.%u.%u.%u "
6228 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6229 ip[0], ip[1], ip[2], ip[3],
6230 ip[4], ip[5], ip[6], ip[7],
6231 ip[8], ip[9], ip[10], ip[11]);
6232 if (os_snprintf_error(sizeof(ip_addr), res))
6236 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6237 ssid->passphrase == NULL && ssid->psk_set ?
6239 ssid->passphrase, go_dev_addr, persistent,
6243 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6246 network_id = ssid->id;
6247 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6251 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6252 u32 interval1, u32 duration2, u32 interval2)
6256 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6259 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6260 wpa_s->current_ssid == NULL ||
6261 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6264 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6265 wpa_s->own_addr, wpa_s->assoc_freq,
6266 duration1, interval1, duration2, interval2);
6268 wpa_s->waiting_presence_resp = 1;
6274 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6275 unsigned int interval)
6277 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6280 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6284 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6286 if (wpa_s->current_ssid == NULL) {
6288 * current_ssid can be cleared when P2P client interface gets
6289 * disconnected, so assume this interface was used as P2P
6294 return wpa_s->current_ssid->p2p_group &&
6295 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6299 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6301 struct wpa_supplicant *wpa_s = eloop_ctx;
6303 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6304 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6309 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6311 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6315 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6319 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6320 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6322 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6325 timeout = wpa_s->conf->p2p_group_idle;
6326 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6327 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6328 timeout = P2P_MAX_CLIENT_IDLE;
6334 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6335 timeout = 0; /* special client mode no-timeout */
6340 if (wpa_s->p2p_in_provisioning) {
6342 * Use the normal group formation timeout during the
6343 * provisioning phase to avoid terminating this process too
6344 * early due to group idle timeout.
6346 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6347 "during provisioning");
6351 if (wpa_s->show_group_started) {
6353 * Use the normal group formation timeout between the end of
6354 * the provisioning phase and completion of 4-way handshake to
6355 * avoid terminating this process too early due to group idle
6358 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6359 "while waiting for initial 4-way handshake to "
6364 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6366 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6371 /* Returns 1 if the interface was removed */
6372 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6373 u16 reason_code, const u8 *ie, size_t ie_len,
6374 int locally_generated)
6376 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6379 if (!locally_generated)
6380 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6383 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6384 wpa_s->current_ssid &&
6385 wpa_s->current_ssid->p2p_group &&
6386 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6387 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6388 "session is ending");
6389 if (wpas_p2p_group_delete(wpa_s,
6390 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6399 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6400 u16 reason_code, const u8 *ie, size_t ie_len,
6401 int locally_generated)
6403 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6406 if (!locally_generated)
6407 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6412 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6414 struct p2p_data *p2p = wpa_s->global->p2p;
6419 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6422 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6423 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6425 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6426 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6429 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6430 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6432 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6433 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6435 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6436 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6437 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6438 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6439 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6442 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6443 p2p_set_sec_dev_types(p2p,
6444 (void *) wpa_s->conf->sec_device_type,
6445 wpa_s->conf->num_sec_device_types);
6447 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6449 p2p_remove_wps_vendor_extensions(p2p);
6450 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6451 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6453 p2p_add_wps_vendor_extension(
6454 p2p, wpa_s->conf->wps_vendor_ext[i]);
6458 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6459 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6461 country[0] = wpa_s->conf->country[0];
6462 country[1] = wpa_s->conf->country[1];
6464 p2p_set_country(p2p, country);
6467 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6468 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6469 wpa_s->conf->p2p_ssid_postfix ?
6470 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6474 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6475 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6477 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6478 u8 reg_class, channel;
6483 if (wpa_s->conf->p2p_listen_reg_class &&
6484 wpa_s->conf->p2p_listen_channel) {
6485 reg_class = wpa_s->conf->p2p_listen_reg_class;
6486 channel = wpa_s->conf->p2p_listen_channel;
6491 * Pick one of the social channels randomly as the
6494 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6497 channel = 1 + (r % 3) * 5;
6500 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6503 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6506 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6507 u8 op_reg_class, op_channel, cfg_op_channel;
6510 if (wpa_s->conf->p2p_oper_reg_class &&
6511 wpa_s->conf->p2p_oper_channel) {
6512 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6513 op_channel = wpa_s->conf->p2p_oper_channel;
6518 * Use random operation channel from (1, 6, 11)
6519 *if no other preference is indicated.
6521 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6524 op_channel = 1 + (r % 3) * 5;
6527 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6530 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6534 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6535 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6536 wpa_s->conf->p2p_pref_chan) < 0) {
6537 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6541 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6542 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6547 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6548 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6552 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6555 if (!wpa_s->ap_iface)
6557 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6562 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6564 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6567 wpa_s->global->cross_connection = enabled;
6568 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6571 struct wpa_supplicant *iface;
6573 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6575 if (iface->cross_connect_enabled == 0)
6578 iface->cross_connect_enabled = 0;
6579 iface->cross_connect_in_use = 0;
6580 wpa_msg_global(iface->parent, MSG_INFO,
6581 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6583 iface->cross_connect_uplink);
6591 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6593 struct wpa_supplicant *iface;
6595 if (!uplink->global->cross_connection)
6598 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6599 if (!iface->cross_connect_enabled)
6601 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6604 if (iface->ap_iface == NULL)
6606 if (iface->cross_connect_in_use)
6609 iface->cross_connect_in_use = 1;
6610 wpa_msg_global(iface->parent, MSG_INFO,
6611 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6612 iface->ifname, iface->cross_connect_uplink);
6617 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6619 struct wpa_supplicant *iface;
6621 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6622 if (!iface->cross_connect_enabled)
6624 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6627 if (!iface->cross_connect_in_use)
6630 wpa_msg_global(iface->parent, MSG_INFO,
6631 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6632 iface->ifname, iface->cross_connect_uplink);
6633 iface->cross_connect_in_use = 0;
6638 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6640 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6641 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6642 wpa_s->cross_connect_disallowed)
6643 wpas_p2p_disable_cross_connect(wpa_s);
6645 wpas_p2p_enable_cross_connect(wpa_s);
6646 if (!wpa_s->ap_iface &&
6647 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6648 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6652 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6654 wpas_p2p_disable_cross_connect(wpa_s);
6655 if (!wpa_s->ap_iface &&
6656 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6658 wpas_p2p_set_group_idle_timeout(wpa_s);
6662 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6664 struct wpa_supplicant *iface;
6666 if (!wpa_s->global->cross_connection)
6669 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6672 if (iface->drv_flags &
6673 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6675 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
6676 iface != wpa_s->parent)
6679 wpa_s->cross_connect_enabled = 1;
6680 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6681 sizeof(wpa_s->cross_connect_uplink));
6682 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6683 "%s to %s whenever uplink is available",
6684 wpa_s->ifname, wpa_s->cross_connect_uplink);
6686 if (iface->ap_iface || iface->current_ssid == NULL ||
6687 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6688 iface->cross_connect_disallowed ||
6689 iface->wpa_state != WPA_COMPLETED)
6692 wpa_s->cross_connect_in_use = 1;
6693 wpa_msg_global(wpa_s->parent, MSG_INFO,
6694 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6695 wpa_s->ifname, wpa_s->cross_connect_uplink);
6701 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6703 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6704 !wpa_s->p2p_in_provisioning)
6705 return 0; /* not P2P client operation */
6707 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6709 if (wpa_s != wpa_s->parent)
6710 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6711 wpas_p2p_group_formation_failed(wpa_s);
6716 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6718 struct wpa_supplicant *wpa_s = eloop_ctx;
6719 wpas_p2p_notif_pbc_overlap(wpa_s);
6723 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6725 struct p2p_channels chan, cli_chan;
6726 struct wpa_supplicant *ifs;
6728 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6731 os_memset(&chan, 0, sizeof(chan));
6732 os_memset(&cli_chan, 0, sizeof(cli_chan));
6733 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6734 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6739 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6741 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6743 if (!ifs->current_ssid ||
6744 !ifs->current_ssid->p2p_group ||
6745 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6746 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6748 freq = ifs->current_ssid->frequency;
6749 if (freq_included(&chan, freq)) {
6750 wpa_dbg(ifs, MSG_DEBUG,
6751 "P2P GO operating frequency %d MHz in valid range",
6756 wpa_dbg(ifs, MSG_DEBUG,
6757 "P2P GO operating in invalid frequency %d MHz", freq);
6758 /* TODO: Consider using CSA or removing the group within
6760 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6765 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6766 struct wpa_scan_results *scan_res)
6768 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6772 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6774 struct wpa_global *global = wpa_s->global;
6778 if (global->p2p == NULL)
6781 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6783 if (wpa_s->pending_interface_name[0] &&
6784 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6787 peer = p2p_get_go_neg_peer(global->p2p);
6789 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6790 MACSTR, MAC2STR(peer));
6791 p2p_unauthorize(global->p2p, peer);
6795 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6796 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6797 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6801 if (wpa_s->pending_pd_before_join) {
6802 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6803 wpa_s->pending_pd_before_join = 0;
6807 wpas_p2p_stop_find(wpa_s);
6809 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6810 if (wpa_s == global->p2p_group_formation &&
6811 (wpa_s->p2p_in_provisioning ||
6812 wpa_s->parent->pending_interface_type ==
6813 WPA_IF_P2P_CLIENT)) {
6814 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6815 "formation found - cancelling",
6818 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6819 wpa_s->parent, NULL);
6820 if (wpa_s->p2p_in_provisioning) {
6821 wpas_group_formation_completed(wpa_s, 0);
6824 wpas_p2p_group_delete(wpa_s,
6825 P2P_GROUP_REMOVAL_REQUESTED);
6827 } else if (wpa_s->p2p_in_invitation) {
6828 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6831 wpas_p2p_group_formation_failed(wpa_s);
6836 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6844 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6846 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6849 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6850 "being available anymore");
6851 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
6855 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6856 int freq_24, int freq_5, int freq_overall)
6858 struct p2p_data *p2p = wpa_s->global->p2p;
6861 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6865 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6868 struct p2p_data *p2p = wpa_s->global->p2p;
6873 if (hwaddr_aton(addr, peer))
6876 return p2p_unauthorize(p2p, peer);
6881 * wpas_p2p_disconnect - Disconnect from a P2P Group
6882 * @wpa_s: Pointer to wpa_supplicant data
6883 * Returns: 0 on success, -1 on failure
6885 * This can be used to disconnect from a group in which the local end is a P2P
6886 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6887 * virtual network interface was created for this group, that interface will be
6888 * removed. Otherwise, only the configured P2P group network will be removed
6889 * from the interface.
6891 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6897 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6902 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6906 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6909 ret = p2p_in_progress(wpa_s->global->p2p);
6912 * Check whether there is an ongoing WPS provisioning step (or
6913 * other parts of group formation) on another interface since
6914 * p2p_in_progress() does not report this to avoid issues for
6915 * scans during such provisioning step.
6917 if (wpa_s->global->p2p_group_formation &&
6918 wpa_s->global->p2p_group_formation != wpa_s) {
6919 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6920 "in group formation",
6921 wpa_s->global->p2p_group_formation->ifname);
6926 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
6927 struct os_reltime now;
6928 os_get_reltime(&now);
6929 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6930 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
6931 /* Wait for the first client has expired */
6932 wpa_s->global->p2p_go_wait_client.sec = 0;
6934 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6943 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6944 struct wpa_ssid *ssid)
6946 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6947 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6948 wpa_s->parent, NULL) > 0) {
6950 * Remove the network by scheduling the group formation
6951 * timeout to happen immediately. The teardown code
6952 * needs to be scheduled to run asynch later so that we
6953 * don't delete data from under ourselves unexpectedly.
6954 * Calling wpas_p2p_group_formation_timeout directly
6955 * causes a series of crashes in WPS failure scenarios.
6957 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6958 "P2P group network getting removed");
6959 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6960 wpa_s->parent, NULL);
6965 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
6966 const u8 *addr, const u8 *ssid,
6972 for (s = wpa_s->conf->ssid; s; s = s->next) {
6973 if (s->disabled != 2)
6976 (ssid_len != s->ssid_len ||
6977 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6980 if (s->mode == WPAS_MODE_P2P_GO)
6984 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6985 return s; /* peer is GO in the persistent group */
6986 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6988 for (i = 0; i < s->num_p2p_clients; i++) {
6989 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
6990 addr, ETH_ALEN) == 0)
6991 return s; /* peer is P2P client in persistent
7000 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7003 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7004 wpa_s->parent, NULL) > 0) {
7006 * This can happen if WPS provisioning step is not terminated
7007 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7008 * peer was able to connect, there is no need to time out group
7009 * formation after this, though. In addition, this is used with
7010 * the initial connection wait on the GO as a separate formation
7011 * timeout and as such, expected to be hit after the initial WPS
7012 * provisioning step.
7014 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7016 if (!wpa_s->p2p_go_group_formation_completed &&
7017 !wpa_s->group_formation_reported) {
7019 * GO has not yet notified group formation success since
7020 * the WPS step was not completed cleanly. Do that
7021 * notification now since the P2P Client was able to
7022 * connect and as such, must have received the
7023 * credential from the WPS step.
7025 if (wpa_s->global->p2p)
7026 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7027 wpas_group_formation_completed(wpa_s, 1);
7030 if (!wpa_s->p2p_go_group_formation_completed) {
7031 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7032 wpa_s->p2p_go_group_formation_completed = 1;
7033 wpa_s->global->p2p_group_formation = NULL;
7034 wpa_s->p2p_in_provisioning = 0;
7035 wpa_s->p2p_in_invitation = 0;
7037 wpa_s->global->p2p_go_wait_client.sec = 0;
7040 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7044 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7047 struct wpa_supplicant *group = wpa_s;
7050 if (wpa_s->global->p2p_group_formation)
7051 group = wpa_s->global->p2p_group_formation;
7052 wpa_s = wpa_s->parent;
7053 offchannel_send_action_done(wpa_s);
7055 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7056 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7057 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7058 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7059 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7060 wpa_s->p2p_persistent_id,
7061 wpa_s->p2p_pd_before_go_neg,
7068 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7072 if (!wpa_s->p2p_fallback_to_go_neg ||
7073 wpa_s->p2p_in_provisioning <= 5)
7076 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7077 return 0; /* peer operating as a GO */
7079 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7080 "fallback to GO Negotiation");
7081 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7082 "reason=GO-not-found");
7083 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7085 return res == 1 ? 2 : 1;
7089 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7091 struct wpa_supplicant *ifs;
7093 if (wpa_s->wpa_state > WPA_SCANNING) {
7094 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7095 "concurrent operation",
7096 wpa_s->conf->p2p_search_delay);
7097 return wpa_s->conf->p2p_search_delay;
7100 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7102 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7103 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7104 "delay due to concurrent operation on "
7106 wpa_s->conf->p2p_search_delay,
7108 return wpa_s->conf->p2p_search_delay;
7116 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7117 struct wpa_ssid *s, const u8 *addr,
7120 struct psk_list_entry *psk, *tmp;
7123 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7125 if ((iface_addr && !psk->p2p &&
7126 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7127 (!iface_addr && psk->p2p &&
7128 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7129 wpa_dbg(wpa_s, MSG_DEBUG,
7130 "P2P: Remove persistent group PSK list entry for "
7132 MAC2STR(psk->addr), psk->p2p);
7133 dl_list_del(&psk->list);
7143 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7144 const u8 *p2p_dev_addr,
7145 const u8 *psk, size_t psk_len)
7147 struct wpa_ssid *ssid = wpa_s->current_ssid;
7148 struct wpa_ssid *persistent;
7149 struct psk_list_entry *p, *last;
7151 if (psk_len != sizeof(p->psk))
7155 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7156 " p2p_dev_addr=" MACSTR,
7157 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7158 if (is_zero_ether_addr(p2p_dev_addr))
7159 p2p_dev_addr = NULL;
7161 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7165 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7166 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7167 /* To be added to persistent group once created */
7168 if (wpa_s->global->add_psk == NULL) {
7169 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7170 if (wpa_s->global->add_psk == NULL)
7173 p = wpa_s->global->add_psk;
7176 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7179 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7181 os_memcpy(p->psk, psk, psk_len);
7185 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7186 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7190 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7193 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7197 p = os_zalloc(sizeof(*p));
7202 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7205 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7207 os_memcpy(p->psk, psk, psk_len);
7209 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7210 (last = dl_list_last(&persistent->psk_list,
7211 struct psk_list_entry, list))) {
7212 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7213 MACSTR " (p2p=%u) to make room for a new one",
7214 MAC2STR(last->addr), last->p2p);
7215 dl_list_del(&last->list);
7219 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7220 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7221 p2p_dev_addr == NULL);
7223 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7224 MACSTR, MAC2STR(p2p_dev_addr));
7226 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7229 dl_list_add(&persistent->psk_list, &p->list);
7231 if (wpa_s->parent->conf->update_config &&
7232 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7233 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7237 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7238 struct wpa_ssid *s, const u8 *addr,
7243 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7244 if (res > 0 && wpa_s->conf->update_config &&
7245 wpa_config_write(wpa_s->confname, wpa_s->conf))
7246 wpa_dbg(wpa_s, MSG_DEBUG,
7247 "P2P: Failed to update configuration");
7251 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7252 const u8 *peer, int iface_addr)
7254 struct hostapd_data *hapd;
7255 struct hostapd_wpa_psk *psk, *prev, *rem;
7256 struct sta_info *sta;
7258 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7259 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7262 /* Remove per-station PSK entry */
7263 hapd = wpa_s->ap_iface->bss[0];
7265 psk = hapd->conf->ssid.wpa_psk;
7267 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7269 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7270 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7271 MACSTR " iface_addr=%d",
7272 MAC2STR(peer), iface_addr);
7274 prev->next = psk->next;
7276 hapd->conf->ssid.wpa_psk = psk->next;
7286 /* Disconnect from group */
7288 sta = ap_get_sta(hapd, peer);
7290 sta = ap_get_sta_p2p(hapd, peer);
7292 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7293 " (iface_addr=%d) from group",
7294 MAC2STR(peer), iface_addr);
7295 hostapd_drv_sta_deauth(hapd, sta->addr,
7296 WLAN_REASON_DEAUTH_LEAVING);
7297 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7302 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7306 struct wpa_supplicant *w;
7308 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7310 /* Remove from any persistent group */
7311 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7312 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7315 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7316 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7319 /* Remove from any operating group */
7320 for (w = wpa_s->global->ifaces; w; w = w->next)
7321 wpas_p2p_remove_client_go(w, peer, iface_addr);
7325 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7327 struct wpa_supplicant *wpa_s = eloop_ctx;
7328 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7332 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7334 struct wpa_supplicant *wpa_s = eloop_ctx;
7336 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7337 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7341 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7342 struct wpa_ssid *ssid)
7344 struct wpa_supplicant *iface;
7346 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7347 if (!iface->current_ssid ||
7348 iface->current_ssid->frequency == freq ||
7349 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7350 !iface->current_ssid->p2p_group))
7353 /* Remove the connection with least priority */
7354 if (!wpas_is_p2p_prioritized(iface)) {
7355 /* STA connection has priority over existing
7356 * P2P connection, so remove the interface. */
7357 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7358 eloop_register_timeout(0, 0,
7359 wpas_p2p_group_freq_conflict,
7361 /* If connection in progress is P2P connection, do not
7362 * proceed for the connection. */
7368 /* P2P connection has priority, disable the STA network
7370 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7372 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7373 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7374 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7376 /* If P2P connection is in progress, continue
7389 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7391 struct wpa_ssid *ssid = wpa_s->current_ssid;
7393 if (ssid == NULL || !ssid->p2p_group)
7396 if (wpa_s->p2p_last_4way_hs_fail &&
7397 wpa_s->p2p_last_4way_hs_fail == ssid) {
7398 u8 go_dev_addr[ETH_ALEN];
7399 struct wpa_ssid *persistent;
7401 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7403 ssid->ssid_len) <= 0) {
7404 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7408 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7409 MACSTR, MAC2STR(go_dev_addr));
7410 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7413 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7414 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7417 wpa_msg_global(wpa_s->parent, MSG_INFO,
7418 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7421 wpa_s->p2p_last_4way_hs_fail = NULL;
7423 * Remove the group from a timeout to avoid issues with caller
7424 * continuing to use the interface if this is on a P2P group
7427 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7432 wpa_s->p2p_last_4way_hs_fail = ssid;
7437 #ifdef CONFIG_WPS_NFC
7439 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7447 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7451 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7452 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7459 wpabuf_put_be16(ret, wsc_len);
7461 wpabuf_put_buf(ret, wsc);
7462 wpabuf_put_be16(ret, wpabuf_len(p2p));
7463 wpabuf_put_buf(ret, p2p);
7467 wpa_hexdump_buf(MSG_DEBUG,
7468 "P2P: Generated NFC connection handover message", ret);
7472 tmp = ndef_build_p2p(ret);
7475 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7485 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7486 struct wpa_ssid **ssid, u8 *go_dev_addr)
7488 struct wpa_supplicant *iface;
7491 os_memset(go_dev_addr, 0, ETH_ALEN);
7494 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7495 if (iface->wpa_state < WPA_ASSOCIATING ||
7496 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7497 !iface->current_ssid->p2p_group ||
7498 iface->current_ssid->mode != WPAS_MODE_INFRA)
7501 *ssid = iface->current_ssid;
7503 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7504 return iface->assoc_freq;
7510 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7513 struct wpabuf *wsc, *p2p;
7514 struct wpa_ssid *ssid;
7515 u8 go_dev_addr[ETH_ALEN];
7516 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7518 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7519 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7523 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7524 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7525 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7526 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7530 if (cli_freq == 0) {
7531 wsc = wps_build_nfc_handover_req_p2p(
7532 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7535 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7536 go_dev_addr, ssid ? ssid->ssid : NULL,
7537 ssid ? ssid->ssid_len : 0);
7539 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7543 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7546 struct wpabuf *wsc, *p2p;
7547 struct wpa_ssid *ssid;
7548 u8 go_dev_addr[ETH_ALEN];
7549 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7551 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7554 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7555 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7556 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7559 if (cli_freq == 0) {
7560 wsc = wps_build_nfc_handover_sel_p2p(
7562 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7563 DEV_PW_NFC_CONNECTION_HANDOVER,
7564 wpa_s->conf->wps_nfc_dh_pubkey,
7565 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7568 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7569 go_dev_addr, ssid ? ssid->ssid : NULL,
7570 ssid ? ssid->ssid_len : 0);
7572 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7576 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7577 struct p2p_nfc_params *params)
7579 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7580 "connection handover (freq=%d)",
7583 if (params->go_freq && params->go_ssid_len) {
7584 wpa_s->p2p_wps_method = WPS_NFC;
7585 wpa_s->pending_join_wps_method = WPS_NFC;
7586 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7587 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7589 return wpas_p2p_join_start(wpa_s, params->go_freq,
7591 params->go_ssid_len);
7594 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7595 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
7596 params->go_freq, -1, 0, 1, 1);
7600 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
7601 struct p2p_nfc_params *params, int tag)
7603 int res, persistent;
7604 struct wpa_ssid *ssid;
7606 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7607 "connection handover");
7608 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7609 ssid = wpa_s->current_ssid;
7612 if (ssid->mode != WPAS_MODE_P2P_GO)
7614 if (wpa_s->ap_iface == NULL)
7618 if (wpa_s == NULL) {
7619 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7623 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7624 DEV_PW_NFC_CONNECTION_HANDOVER &&
7625 !wpa_s->parent->p2p_oob_dev_pw) {
7626 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7629 res = wpas_ap_wps_add_nfc_pw(
7630 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7631 wpa_s->parent->p2p_oob_dev_pw,
7632 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7633 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
7638 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7642 if (!params->peer ||
7643 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7646 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7647 " to join", MAC2STR(params->peer->p2p_device_addr));
7649 wpa_s->global->p2p_invite_group = wpa_s;
7650 persistent = ssid->p2p_persistent_group &&
7651 wpas_p2p_get_persistent(wpa_s->parent,
7652 params->peer->p2p_device_addr,
7653 ssid->ssid, ssid->ssid_len);
7654 wpa_s->parent->pending_invite_ssid_id = -1;
7656 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7657 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7658 ssid->ssid, ssid->ssid_len, ssid->frequency,
7659 wpa_s->global->p2p_dev_addr, persistent, 0,
7660 wpa_s->parent->p2p_oob_dev_pw_id);
7664 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
7665 struct p2p_nfc_params *params,
7668 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7669 "connection handover");
7670 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7671 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
7672 forced_freq, -1, 0, 1, 1);
7676 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
7677 struct p2p_nfc_params *params,
7682 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7683 "connection handover");
7684 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7685 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
7686 forced_freq, -1, 0, 1, 1);
7690 res = wpas_p2p_listen(wpa_s, 60);
7692 p2p_unauthorize(wpa_s->global->p2p,
7693 params->peer->p2p_device_addr);
7700 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7701 const struct wpabuf *data,
7702 int sel, int tag, int forced_freq)
7704 const u8 *pos, *end;
7706 struct p2p_nfc_params params;
7709 os_memset(¶ms, 0, sizeof(params));
7712 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7714 pos = wpabuf_head(data);
7715 end = pos + wpabuf_len(data);
7717 if (end - pos < 2) {
7718 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7722 len = WPA_GET_BE16(pos);
7724 if (len > end - pos) {
7725 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7729 params.wsc_attr = pos;
7730 params.wsc_len = len;
7733 if (end - pos < 2) {
7734 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7738 len = WPA_GET_BE16(pos);
7740 if (len > end - pos) {
7741 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7745 params.p2p_attr = pos;
7746 params.p2p_len = len;
7749 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7750 params.wsc_attr, params.wsc_len);
7751 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7752 params.p2p_attr, params.p2p_len);
7754 wpa_hexdump(MSG_DEBUG,
7755 "P2P: Ignored extra data after P2P attributes",
7759 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
7763 if (params.next_step == NO_ACTION)
7766 if (params.next_step == BOTH_GO) {
7767 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7768 MAC2STR(params.peer->p2p_device_addr));
7772 if (params.next_step == PEER_CLIENT) {
7773 if (!is_zero_ether_addr(params.go_dev_addr)) {
7774 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7775 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7777 MAC2STR(params.peer->p2p_device_addr),
7779 MAC2STR(params.go_dev_addr),
7780 wpa_ssid_txt(params.go_ssid,
7781 params.go_ssid_len));
7783 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7784 "peer=" MACSTR " freq=%d",
7785 MAC2STR(params.peer->p2p_device_addr),
7791 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
7792 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7793 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7797 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7798 wpa_s->p2p_oob_dev_pw = NULL;
7800 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7801 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7806 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7807 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7808 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7809 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7810 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7811 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7812 wpa_s->p2p_peer_oob_pk_hash_known = 1;
7816 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7817 "peer OOB Device Password Id %u", id);
7820 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7821 "Device Password Id %u", id);
7822 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7823 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7824 params.oob_dev_pw_len -
7825 WPS_OOB_PUBKEY_HASH_LEN - 2);
7826 wpa_s->p2p_oob_dev_pw_id = id;
7827 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7828 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7829 params.oob_dev_pw_len -
7830 WPS_OOB_PUBKEY_HASH_LEN - 2);
7831 if (wpa_s->p2p_oob_dev_pw == NULL)
7834 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7835 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7836 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7839 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7840 "without Device Password");
7841 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7844 switch (params.next_step) {
7848 /* already covered above */
7851 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
7853 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
7855 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
7857 /* TODO: use own OOB Dev Pw */
7858 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
7865 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
7866 const struct wpabuf *data, int forced_freq)
7868 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7871 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
7875 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7876 const struct wpabuf *req,
7877 const struct wpabuf *sel, int forced_freq)
7882 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7885 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7887 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7888 wpabuf_head(req), wpabuf_len(req));
7889 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7890 wpabuf_head(sel), wpabuf_len(sel));
7892 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
7893 tmp = ndef_parse_p2p(init ? sel : req);
7895 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7899 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7907 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7910 int go_intent = wpa_s->conf->p2p_go_intent;
7911 struct wpa_supplicant *iface;
7913 if (wpa_s->global->p2p == NULL)
7917 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7918 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7920 if (!iface->ap_iface)
7922 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7924 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7926 if (wpa_s->p2p_nfc_tag_enabled)
7927 wpas_p2p_remove_pending_group_interface(wpa_s);
7928 wpa_s->p2p_nfc_tag_enabled = 0;
7932 if (wpa_s->global->p2p_disabled)
7935 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7936 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7937 wpa_s->conf->wps_nfc_dev_pw == NULL ||
7938 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7939 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7940 "to allow static handover cases");
7944 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7946 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7947 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7948 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7949 if (wpa_s->p2p_oob_dev_pw == NULL)
7951 wpa_s->p2p_peer_oob_pk_hash_known = 0;
7953 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7954 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7956 * P2P Group Interface present and the command came on group
7957 * interface, so enable the token for the current interface.
7959 wpa_s->create_p2p_iface = 0;
7961 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7964 if (wpa_s->create_p2p_iface) {
7965 enum wpa_driver_if_type iftype;
7966 /* Prepare to add a new interface for the group */
7967 iftype = WPA_IF_P2P_GROUP;
7968 if (go_intent == 15)
7969 iftype = WPA_IF_P2P_GO;
7970 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7971 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7972 "interface for the group");
7976 if_addr = wpa_s->pending_interface_addr;
7978 if_addr = wpa_s->own_addr;
7980 wpa_s->p2p_nfc_tag_enabled = enabled;
7982 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7983 struct hostapd_data *hapd;
7984 if (iface->ap_iface == NULL)
7986 hapd = iface->ap_iface->bss[0];
7987 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7988 hapd->conf->wps_nfc_dh_pubkey =
7989 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7990 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7991 hapd->conf->wps_nfc_dh_privkey =
7992 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7993 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
7994 hapd->conf->wps_nfc_dev_pw =
7995 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7996 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7998 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
7999 wpa_dbg(iface, MSG_DEBUG,
8000 "P2P: Failed to enable NFC Tag for GO");
8003 p2p_set_authorized_oob_dev_pw_id(
8004 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8010 #endif /* CONFIG_WPS_NFC */
8013 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8014 struct wpa_used_freq_data *freqs,
8017 u8 curr_chan, cand, chan;
8020 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8021 for (i = 0, cand = 0; i < num; i++) {
8022 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8023 if (curr_chan == chan) {
8028 if (chan == 1 || chan == 6 || chan == 11)
8033 wpa_dbg(wpa_s, MSG_DEBUG,
8034 "P2P: Update Listen channel to %u based on operating channel",
8036 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8041 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8043 struct wpa_used_freq_data *freqs;
8044 unsigned int num = wpa_s->num_multichan_concurrent;
8046 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8050 * If possible, optimize the Listen channel to be a channel that is
8051 * already used by one of the other interfaces.
8053 if (!wpa_s->conf->p2p_optimize_listen_chan)
8056 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8059 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8063 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8065 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
8070 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8072 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8073 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8074 "the management interface is being removed");
8075 wpas_p2p_deinit_global(wpa_s->global);
8080 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8082 if (wpa_s->ap_iface->bss)
8083 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8084 wpas_p2p_group_deinit(wpa_s);