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);
129 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
130 int already_deleted);
134 * Get the number of concurrent channels that the HW can operate, but that are
135 * currently not in use by any of the wpa_supplicant interfaces.
137 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
142 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
146 num = get_shared_radio_freqs(wpa_s, freqs,
147 wpa_s->num_multichan_concurrent);
150 unused = wpa_s->num_multichan_concurrent - num;
151 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
157 * Get the frequencies that are currently in use by one or more of the virtual
158 * interfaces, and that are also valid for P2P operation.
161 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
162 struct wpa_used_freq_data *p2p_freqs,
165 struct wpa_used_freq_data *freqs;
166 unsigned int num, i, j;
168 freqs = os_calloc(wpa_s->num_multichan_concurrent,
169 sizeof(struct wpa_used_freq_data));
173 num = get_shared_radio_freqs_data(wpa_s, freqs,
174 wpa_s->num_multichan_concurrent);
176 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
178 for (i = 0, j = 0; i < num && j < len; i++) {
179 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
180 p2p_freqs[j++] = freqs[i];
185 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
191 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
194 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
197 /* Use the wpa_s used to control the P2P Device operation */
198 wpa_s = wpa_s->global->p2p_init_wpa_s;
200 if (wpa_s->conf->p2p_ignore_shared_freq &&
201 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
202 wpas_p2p_num_unused_channels(wpa_s) > 0) {
203 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
207 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
211 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
212 struct wpa_scan_results *scan_res)
216 if (wpa_s->p2p_scan_work) {
217 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
218 wpa_s->p2p_scan_work = NULL;
219 radio_work_done(work);
222 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
225 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
226 (int) scan_res->num);
228 for (i = 0; i < scan_res->num; i++) {
229 struct wpa_scan_res *bss = scan_res->res[i];
230 struct os_reltime time_tmp_age, entry_ts;
234 time_tmp_age.sec = bss->age / 1000;
235 time_tmp_age.usec = (bss->age % 1000) * 1000;
236 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
238 ies = (const u8 *) (bss + 1);
239 ies_len = bss->ie_len;
240 if (bss->beacon_ie_len > 0 &&
241 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
242 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
243 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
244 MACSTR, MAC2STR(bss->bssid));
246 ies_len = bss->beacon_ie_len;
250 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
251 bss->freq, &entry_ts, bss->level,
256 p2p_scan_res_handled(wpa_s->global->p2p);
260 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
262 struct wpa_supplicant *wpa_s = work->wpa_s;
263 struct wpa_driver_scan_params *params = work->ctx;
267 if (!work->started) {
268 wpa_scan_free_params(params);
272 wpa_s->p2p_scan_work = NULL;
276 ret = wpa_drv_scan(wpa_s, params);
277 wpa_scan_free_params(params);
280 radio_work_done(work);
281 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
285 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
286 os_get_reltime(&wpa_s->scan_trigger_time);
287 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
288 wpa_s->own_scan_requested = 1;
289 wpa_s->p2p_scan_work = work;
293 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
296 if (wpa_s->global->p2p_24ghz_social_channels &&
297 (freq == 2412 || freq == 2437 || freq == 2462)) {
299 * Search all social channels regardless of whether these have
300 * been disabled for P2P operating channel use to avoid missing
305 return p2p_supported_freq(wpa_s->global->p2p, freq);
309 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
310 unsigned int num_req_dev_types,
311 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
313 struct wpa_supplicant *wpa_s = ctx;
314 struct wpa_driver_scan_params *params = NULL;
315 struct wpabuf *wps_ie, *ies;
316 unsigned int num_channels = 0;
317 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
321 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
324 if (wpa_s->p2p_scan_work) {
325 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
329 params = os_zalloc(sizeof(*params));
333 /* P2P Wildcard SSID */
334 params->num_ssids = 1;
335 n = os_malloc(P2P_WILDCARD_SSID_LEN);
338 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
339 params->ssids[0].ssid = n;
340 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
342 wpa_s->wps->dev.p2p = 1;
343 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
344 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
345 num_req_dev_types, req_dev_types);
349 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
350 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
355 wpabuf_put_buf(ies, wps_ie);
358 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
360 params->p2p_probe = 1;
361 n = os_malloc(wpabuf_len(ies));
366 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
367 params->extra_ies = n;
368 params->extra_ies_len = wpabuf_len(ies);
372 case P2P_SCAN_SOCIAL:
373 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
375 if (params->freqs == NULL)
377 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
378 if (wpas_p2p_search_social_channel(
379 wpa_s, social_channels_freq[i]))
380 params->freqs[num_channels++] =
381 social_channels_freq[i];
383 params->freqs[num_channels++] = 0;
387 case P2P_SCAN_SPECIFIC:
388 params->freqs = os_calloc(2, sizeof(int));
389 if (params->freqs == NULL)
391 params->freqs[0] = freq;
392 params->freqs[1] = 0;
394 case P2P_SCAN_SOCIAL_PLUS_ONE:
395 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
397 if (params->freqs == NULL)
399 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
400 if (wpas_p2p_search_social_channel(
401 wpa_s, social_channels_freq[i]))
402 params->freqs[num_channels++] =
403 social_channels_freq[i];
405 if (p2p_supported_freq(wpa_s->global->p2p, freq))
406 params->freqs[num_channels++] = freq;
407 params->freqs[num_channels++] = 0;
411 radio_remove_works(wpa_s, "p2p-scan", 0);
412 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
418 wpa_scan_free_params(params);
423 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
425 switch (p2p_group_interface) {
426 case P2P_GROUP_INTERFACE_PENDING:
427 return WPA_IF_P2P_GROUP;
428 case P2P_GROUP_INTERFACE_GO:
429 return WPA_IF_P2P_GO;
430 case P2P_GROUP_INTERFACE_CLIENT:
431 return WPA_IF_P2P_CLIENT;
434 return WPA_IF_P2P_GROUP;
438 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
440 size_t ssid_len, int *go)
444 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
445 for (s = wpa_s->conf->ssid; s; s = s->next) {
446 if (s->disabled != 0 || !s->p2p_group ||
447 s->ssid_len != ssid_len ||
448 os_memcmp(ssid, s->ssid, ssid_len) != 0)
450 if (s->mode == WPAS_MODE_P2P_GO &&
451 s != wpa_s->current_ssid)
454 *go = s->mode == WPAS_MODE_P2P_GO;
463 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
465 struct wpa_supplicant *wpa_s = eloop_ctx;
466 wpa_printf(MSG_DEBUG,
467 "P2P: Complete previously requested removal of %s",
469 wpas_p2p_disconnect(wpa_s);
473 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
474 struct wpa_supplicant *calling_wpa_s)
476 if (calling_wpa_s == wpa_s && wpa_s &&
477 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
479 * The calling wpa_s instance is going to be removed. Do that
480 * from an eloop callback to keep the instance available until
481 * the caller has returned. This my be needed, e.g., to provide
482 * control interface responses on the per-interface socket.
484 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
490 return wpas_p2p_disconnect(wpa_s);
494 /* Determine total number of clients in active groups where we are the GO */
495 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
497 unsigned int count = 0;
500 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
501 for (s = wpa_s->conf->ssid; s; s = s->next) {
502 wpa_printf(MSG_DEBUG,
503 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
504 wpa_s, s, s->disabled, s->p2p_group,
506 if (!s->disabled && s->p2p_group &&
507 s->mode == WPAS_MODE_P2P_GO) {
508 count += p2p_get_group_num_members(
518 /* Find an interface for a P2P group where we are the GO */
519 static struct wpa_supplicant *
520 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
522 struct wpa_supplicant *save = NULL;
528 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
529 for (s = wpa_s->conf->ssid; s; s = s->next) {
530 if (s->disabled || !s->p2p_group ||
531 s->mode != WPAS_MODE_P2P_GO)
534 /* Prefer a group with connected clients */
535 if (p2p_get_group_num_members(wpa_s->p2p_group))
541 /* No group with connected clients, so pick the one without (if any) */
546 /* Find an active P2P group where we are the GO */
547 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
550 struct wpa_ssid *s, *empty = NULL;
555 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
556 for (s = wpa_s->conf->ssid; s; s = s->next) {
557 if (s->disabled || !s->p2p_group ||
558 s->mode != WPAS_MODE_P2P_GO)
561 os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
562 if (p2p_get_group_num_members(wpa_s->p2p_group))
572 /* Find a persistent group where we are the GO */
573 static struct wpa_ssid *
574 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
578 for (s = wpa_s->conf->ssid; s; s = s->next) {
579 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
587 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
589 struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
591 u8 conncap = P2PS_SETUP_NONE;
592 unsigned int owned_members = 0;
593 unsigned int owner = 0;
594 unsigned int client = 0;
595 struct wpa_supplicant *go_wpa_s;
596 struct wpa_ssid *persistent_go;
597 int p2p_no_group_iface;
599 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
602 * For non-concurrent capable devices:
603 * If persistent_go, then no new.
604 * If GO, then no client.
605 * If client, then no GO.
607 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
608 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
609 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
611 wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
612 go_wpa_s, persistent_go);
614 for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
615 tmp_wpa_s = tmp_wpa_s->next) {
616 for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
617 wpa_printf(MSG_DEBUG,
618 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
619 tmp_wpa_s, s, s->disabled,
620 s->p2p_group, s->mode);
621 if (!s->disabled && s->p2p_group) {
622 if (s->mode == WPAS_MODE_P2P_GO) {
624 p2p_get_group_num_members(
625 tmp_wpa_s->p2p_group);
633 /* If not concurrent, restrict our choices */
634 if (p2p_no_group_iface) {
635 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
638 return P2PS_SETUP_NONE;
641 if (role == P2PS_SETUP_CLIENT ||
642 incoming == P2PS_SETUP_GROUP_OWNER ||
643 p2p_client_limit_reached(go_wpa_s->p2p_group))
644 return P2PS_SETUP_NONE;
646 return P2PS_SETUP_GROUP_OWNER;
650 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
652 return P2PS_SETUP_GROUP_OWNER |
654 if (incoming == P2PS_SETUP_NEW) {
657 if (os_get_random(&r, sizeof(r)) < 0 ||
659 return P2PS_SETUP_CLIENT;
660 return P2PS_SETUP_GROUP_OWNER;
666 /* If a required role has been specified, handle it here */
667 if (role && role != P2PS_SETUP_NEW) {
669 case P2PS_SETUP_NONE:
671 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
672 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
676 case P2PS_SETUP_GROUP_OWNER:
678 * Must be a complimentary role - cannot be a client to
679 * more than one peer.
681 if (incoming == role || client)
682 return P2PS_SETUP_NONE;
684 return P2PS_SETUP_CLIENT;
686 case P2PS_SETUP_CLIENT:
687 /* Must be a complimentary role */
688 if (incoming != role) {
689 conncap = P2PS_SETUP_GROUP_OWNER;
694 return P2PS_SETUP_NONE;
699 * For now, we only will support ownership of one group, and being a
700 * client of one group. Therefore, if we have either an existing GO
701 * group, or an existing client group, we will not do a new GO
702 * negotiation, but rather try to re-use the existing groups.
705 case P2PS_SETUP_NONE:
708 conncap = P2PS_SETUP_GROUP_OWNER;
709 else if (!owned_members)
710 conncap = P2PS_SETUP_NEW;
711 else if (incoming == P2PS_SETUP_NONE)
712 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
714 conncap = P2PS_SETUP_CLIENT;
717 case P2PS_SETUP_CLIENT:
718 conncap = P2PS_SETUP_GROUP_OWNER;
721 case P2PS_SETUP_GROUP_OWNER:
723 conncap = P2PS_SETUP_CLIENT;
726 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
727 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
729 conncap = P2PS_SETUP_GROUP_OWNER;
733 if (os_get_random(&r, sizeof(r)) < 0 ||
735 conncap = P2PS_SETUP_CLIENT;
737 conncap = P2PS_SETUP_GROUP_OWNER;
742 return P2PS_SETUP_NONE;
746 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
747 (!incoming && (conncap & P2PS_SETUP_NEW))) {
748 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
749 conncap &= ~P2PS_SETUP_GROUP_OWNER;
750 wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
751 owner, owned_members, conncap);
753 s = wpas_p2p_get_persistent_go(wpa_s);
755 if (!s && !owner && p2p_no_group_iface) {
756 p2p_set_intended_addr(wpa_s->global->p2p,
758 } else if (!s && !owner) {
759 if (wpas_p2p_add_group_interface(wpa_s,
760 WPA_IF_P2P_GO) < 0) {
761 wpa_printf(MSG_ERROR,
762 "P2P: Failed to allocate a new interface for the group");
763 return P2PS_SETUP_NONE;
765 wpa_s->global->pending_group_iface_for_p2ps = 1;
766 p2p_set_intended_addr(wpa_s->global->p2p,
767 wpa_s->pending_interface_addr);
775 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
776 enum p2p_group_removal_reason removal_reason)
778 struct wpa_ssid *ssid;
782 ssid = wpa_s->current_ssid;
785 * The current SSID was not known, but there may still be a
786 * pending P2P group interface waiting for provisioning or a
787 * P2P group that is trying to reconnect.
789 ssid = wpa_s->conf->ssid;
791 if (ssid->p2p_group && ssid->disabled != 2)
796 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
798 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
803 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
805 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
806 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
807 wpa_s->reassociate = 0;
808 wpa_s->disconnected = 1;
813 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
814 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
816 if (os_strcmp(gtype, "client") == 0) {
817 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
818 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
820 wpa_printf(MSG_DEBUG,
821 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
822 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
823 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
828 if (wpa_s->cross_connect_in_use) {
829 wpa_s->cross_connect_in_use = 0;
830 wpa_msg_global(wpa_s->parent, MSG_INFO,
831 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
832 wpa_s->ifname, wpa_s->cross_connect_uplink);
834 switch (removal_reason) {
835 case P2P_GROUP_REMOVAL_REQUESTED:
836 reason = " reason=REQUESTED";
838 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
839 reason = " reason=FORMATION_FAILED";
841 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
842 reason = " reason=IDLE";
844 case P2P_GROUP_REMOVAL_UNAVAILABLE:
845 reason = " reason=UNAVAILABLE";
847 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
848 reason = " reason=GO_ENDING_SESSION";
850 case P2P_GROUP_REMOVAL_PSK_FAILURE:
851 reason = " reason=PSK_FAILURE";
853 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
854 reason = " reason=FREQ_CONFLICT";
860 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
861 wpa_msg_global(wpa_s->parent, MSG_INFO,
862 P2P_EVENT_GROUP_REMOVED "%s %s%s",
863 wpa_s->ifname, gtype, reason);
866 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
867 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
868 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
869 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
870 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
871 wpa_s->parent, NULL) > 0) {
872 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
874 wpa_s->p2p_in_provisioning = 0;
877 wpa_s->p2p_in_invitation = 0;
880 * Make sure wait for the first client does not remain active after the
881 * group has been removed.
883 wpa_s->global->p2p_go_wait_client.sec = 0;
885 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
886 struct wpa_global *global;
888 enum wpa_driver_if_type type;
889 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
891 global = wpa_s->global;
892 ifname = os_strdup(wpa_s->ifname);
893 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
894 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
895 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
896 wpa_s = global->ifaces;
898 wpa_drv_if_remove(wpa_s, type, ifname);
903 if (!wpa_s->p2p_go_group_formation_completed) {
904 wpa_s->global->p2p_group_formation = NULL;
905 wpa_s->p2p_in_provisioning = 0;
908 wpa_s->show_group_started = 0;
909 os_free(wpa_s->go_params);
910 wpa_s->go_params = NULL;
912 os_free(wpa_s->p2p_group_common_freqs);
913 wpa_s->p2p_group_common_freqs = NULL;
914 wpa_s->p2p_group_common_freqs_num = 0;
916 wpa_s->waiting_presence_resp = 0;
918 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
919 if (ssid && (ssid->p2p_group ||
920 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
921 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
923 if (ssid == wpa_s->current_ssid) {
924 wpa_sm_set_config(wpa_s->wpa, NULL);
925 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
926 wpa_s->current_ssid = NULL;
929 * Networks objects created during any P2P activities are not
930 * exposed out as they might/will confuse certain non-P2P aware
931 * applications since these network objects won't behave like
934 * Likewise, we don't send out network removed signals for such
937 wpa_config_remove_network(wpa_s->conf, id);
938 wpa_supplicant_clear_status(wpa_s);
939 wpa_supplicant_cancel_sched_scan(wpa_s);
941 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
945 wpa_supplicant_ap_deinit(wpa_s);
947 wpa_drv_deinit_p2p_cli(wpa_s);
953 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
955 const u8 *ssid, size_t ssid_len)
963 if (wpa_s->go_params)
964 bssid = wpa_s->go_params->peer_interface_addr;
966 bssid = wpa_s->bssid;
968 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
969 if (bss == NULL && wpa_s->go_params &&
970 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
971 bss = wpa_bss_get_p2p_dev_addr(
972 wpa_s, wpa_s->go_params->peer_device_addr);
974 u8 iface_addr[ETH_ALEN];
975 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
977 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
980 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
981 "group is persistent - BSS " MACSTR " not found",
986 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
988 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
991 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
992 "group is persistent - BSS " MACSTR
993 " did not include P2P IE", MAC2STR(bssid));
994 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
995 (u8 *) (bss + 1), bss->ie_len);
996 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
997 ((u8 *) bss + 1) + bss->ie_len,
1002 group_capab = p2p_get_group_capab(p2p);
1003 addr = p2p_get_go_dev_addr(p2p);
1004 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1005 "group_capab=0x%x", group_capab);
1007 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1008 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1011 os_memset(go_dev_addr, 0, ETH_ALEN);
1014 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1015 "go_dev_addr=" MACSTR,
1016 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1018 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1022 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1023 struct wpa_ssid *ssid,
1024 const u8 *go_dev_addr)
1029 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1030 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1031 for (s = wpa_s->conf->ssid; s; s = s->next) {
1032 if (s->disabled == 2 &&
1033 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1034 s->ssid_len == ssid->ssid_len &&
1035 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1040 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1042 if (ssid->passphrase && !s->passphrase)
1044 else if (ssid->passphrase && s->passphrase &&
1045 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1048 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1051 s = wpa_config_add_network(wpa_s->conf);
1056 * Instead of network_added we emit persistent_group_added
1057 * notification. Also to keep the defense checks in
1058 * persistent_group obj registration method, we set the
1059 * relevant flags in s to designate it as a persistent group.
1062 s->p2p_persistent_group = 1;
1063 wpas_notify_persistent_group_added(wpa_s, s);
1064 wpa_config_set_network_defaults(s);
1068 s->p2p_persistent_group = 1;
1071 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1072 s->mode = ssid->mode;
1073 s->auth_alg = WPA_AUTH_ALG_OPEN;
1074 s->key_mgmt = WPA_KEY_MGMT_PSK;
1075 s->proto = WPA_PROTO_RSN;
1076 s->pairwise_cipher = WPA_CIPHER_CCMP;
1078 if (ssid->passphrase) {
1079 os_free(s->passphrase);
1080 s->passphrase = os_strdup(ssid->passphrase);
1082 if (ssid->psk_set) {
1084 os_memcpy(s->psk, ssid->psk, 32);
1086 if (s->passphrase && !s->psk_set)
1087 wpa_config_update_psk(s);
1088 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1090 s->ssid = os_malloc(ssid->ssid_len);
1093 s->ssid_len = ssid->ssid_len;
1094 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1096 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1097 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1098 wpa_s->global->add_psk = NULL;
1102 if (changed && wpa_s->conf->update_config &&
1103 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1104 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1111 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1114 struct wpa_ssid *ssid, *s;
1118 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1120 ssid = wpa_s->current_ssid;
1121 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1122 !ssid->p2p_persistent_group)
1125 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1126 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1129 if (s->ssid_len == ssid->ssid_len &&
1130 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1137 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1138 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1142 if (i == s->num_p2p_clients - 1)
1143 return; /* already the most recent entry */
1145 /* move the entry to mark it most recent */
1146 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1147 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1148 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1149 os_memcpy(s->p2p_client_list +
1150 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1152 os_memset(s->p2p_client_list +
1153 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1159 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1160 n = os_realloc_array(s->p2p_client_list,
1161 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1164 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1166 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1168 s->p2p_client_list = n;
1169 s->num_p2p_clients++;
1170 } else if (!found && s->p2p_client_list) {
1171 /* Not enough room for an additional entry - drop the oldest
1173 os_memmove(s->p2p_client_list,
1174 s->p2p_client_list + 2 * ETH_ALEN,
1175 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1176 os_memcpy(s->p2p_client_list +
1177 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1179 os_memset(s->p2p_client_list +
1180 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1184 if (p2p_wpa_s->conf->update_config &&
1185 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1186 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1190 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1191 int go, struct wpa_ssid *ssid, int freq,
1192 const u8 *psk, const char *passphrase,
1193 const u8 *go_dev_addr, int persistent,
1196 const char *ssid_txt;
1200 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1205 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1209 if (passphrase && passphrase[0] == '\0')
1213 * Include PSK/passphrase only in the control interface message and
1214 * leave it out from the debug log entry.
1216 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1217 P2P_EVENT_GROUP_STARTED
1218 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1220 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1221 psk ? " psk=" : "", psk_txt,
1222 passphrase ? " passphrase=\"" : "",
1223 passphrase ? passphrase : "",
1224 passphrase ? "\"" : "",
1225 MAC2STR(go_dev_addr),
1226 persistent ? " [PERSISTENT]" : "", extra);
1227 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1228 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1229 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1230 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1235 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1236 int success, int already_deleted)
1238 struct wpa_ssid *ssid;
1241 u8 go_dev_addr[ETH_ALEN];
1242 int network_id = -1;
1245 * This callback is likely called for the main interface. Update wpa_s
1246 * to use the group interface if a new interface was created for the
1249 if (wpa_s->global->p2p_group_formation)
1250 wpa_s = wpa_s->global->p2p_group_formation;
1251 if (wpa_s->p2p_go_group_formation_completed) {
1252 wpa_s->global->p2p_group_formation = NULL;
1253 wpa_s->p2p_in_provisioning = 0;
1255 wpa_s->p2p_in_invitation = 0;
1256 wpa_s->group_formation_reported = 1;
1259 wpa_msg_global(wpa_s->parent, MSG_INFO,
1260 P2P_EVENT_GROUP_FORMATION_FAILURE);
1261 if (already_deleted)
1263 wpas_p2p_group_delete(wpa_s,
1264 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1268 wpa_msg_global(wpa_s->parent, MSG_INFO,
1269 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1271 ssid = wpa_s->current_ssid;
1272 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1273 ssid->mode = WPAS_MODE_P2P_GO;
1274 p2p_group_notif_formation_done(wpa_s->p2p_group);
1275 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1280 client = ssid->mode == WPAS_MODE_INFRA;
1281 if (ssid->mode == WPAS_MODE_P2P_GO) {
1282 persistent = ssid->p2p_persistent_group;
1283 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1286 persistent = wpas_p2p_persistent_group(wpa_s,
1291 client = wpa_s->p2p_group_interface ==
1292 P2P_GROUP_INTERFACE_CLIENT;
1293 os_memset(go_dev_addr, 0, ETH_ALEN);
1296 wpa_s->show_group_started = 0;
1299 * Indicate event only after successfully completed 4-way
1300 * handshake, i.e., when the interface is ready for data
1303 wpa_s->show_group_started = 1;
1305 wpas_p2p_group_started(wpa_s, 1, ssid,
1306 ssid ? ssid->frequency : 0,
1307 ssid && ssid->passphrase == NULL &&
1308 ssid->psk_set ? ssid->psk : NULL,
1309 ssid ? ssid->passphrase : NULL,
1310 go_dev_addr, persistent, "");
1311 wpas_p2p_cross_connect_setup(wpa_s);
1312 wpas_p2p_set_group_idle_timeout(wpa_s);
1316 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1319 os_free(wpa_s->global->add_psk);
1320 wpa_s->global->add_psk = NULL;
1322 if (network_id < 0 && ssid)
1323 network_id = ssid->id;
1325 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1326 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1331 struct send_action_work {
1337 unsigned int wait_time;
1342 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1345 struct wpa_supplicant *wpa_s = eloop_ctx;
1347 if (!wpa_s->p2p_send_action_work)
1350 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1351 os_free(wpa_s->p2p_send_action_work->ctx);
1352 radio_work_done(wpa_s->p2p_send_action_work);
1353 wpa_s->p2p_send_action_work = NULL;
1357 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1359 if (wpa_s->p2p_send_action_work) {
1360 struct send_action_work *awork;
1361 awork = wpa_s->p2p_send_action_work->ctx;
1362 if (awork->wait_time == 0) {
1364 radio_work_done(wpa_s->p2p_send_action_work);
1365 wpa_s->p2p_send_action_work = NULL;
1368 * In theory, this should not be needed, but number of
1369 * places in the P2P code is still using non-zero wait
1370 * time for the last Action frame in the sequence and
1371 * some of these do not call send_action_done().
1373 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1375 eloop_register_timeout(
1376 0, awork->wait_time * 1000,
1377 wpas_p2p_send_action_work_timeout,
1384 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1386 const u8 *dst, const u8 *src,
1388 const u8 *data, size_t data_len,
1389 enum offchannel_send_action_result
1392 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1394 wpas_p2p_action_tx_clear(wpa_s);
1396 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1400 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1401 res = P2P_SEND_ACTION_SUCCESS;
1403 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1404 res = P2P_SEND_ACTION_NO_ACK;
1406 case OFFCHANNEL_SEND_ACTION_FAILED:
1407 res = P2P_SEND_ACTION_FAILED;
1411 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1413 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1414 wpa_s->pending_pd_before_join &&
1415 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1416 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1417 wpa_s->p2p_fallback_to_go_neg) {
1418 wpa_s->pending_pd_before_join = 0;
1419 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1420 "during p2p_connect-auto");
1421 wpa_msg_global(wpa_s->parent, MSG_INFO,
1422 P2P_EVENT_FALLBACK_TO_GO_NEG
1423 "reason=no-ACK-to-PD-Req");
1424 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1430 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1432 struct wpa_supplicant *wpa_s = work->wpa_s;
1433 struct send_action_work *awork = work->ctx;
1436 if (work->started) {
1437 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1439 wpa_s->p2p_send_action_work = NULL;
1440 offchannel_send_action_done(wpa_s);
1446 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1447 awork->bssid, awork->buf, awork->len,
1449 wpas_p2p_send_action_tx_status, 1) < 0) {
1451 radio_work_done(work);
1454 wpa_s->p2p_send_action_work = work;
1458 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1459 unsigned int freq, const u8 *dst,
1460 const u8 *src, const u8 *bssid, const u8 *buf,
1461 size_t len, unsigned int wait_time)
1463 struct send_action_work *awork;
1465 if (wpa_s->p2p_send_action_work) {
1466 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1470 awork = os_zalloc(sizeof(*awork) + len);
1475 os_memcpy(awork->dst, dst, ETH_ALEN);
1476 os_memcpy(awork->src, src, ETH_ALEN);
1477 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1479 awork->wait_time = wait_time;
1480 os_memcpy(awork->buf, buf, len);
1482 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1483 wpas_send_action_cb, awork) < 0) {
1492 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1493 const u8 *src, const u8 *bssid, const u8 *buf,
1494 size_t len, unsigned int wait_time)
1496 struct wpa_supplicant *wpa_s = ctx;
1497 int listen_freq = -1, send_freq = -1;
1499 if (wpa_s->p2p_listen_work)
1500 listen_freq = wpa_s->p2p_listen_work->freq;
1501 if (wpa_s->p2p_send_action_work)
1502 send_freq = wpa_s->p2p_send_action_work->freq;
1503 if (listen_freq != (int) freq && send_freq != (int) freq) {
1504 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1505 listen_freq, send_freq);
1506 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1510 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1511 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1513 wpas_p2p_send_action_tx_status, 1);
1517 static void wpas_send_action_done(void *ctx)
1519 struct wpa_supplicant *wpa_s = ctx;
1521 if (wpa_s->p2p_send_action_work) {
1522 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1524 os_free(wpa_s->p2p_send_action_work->ctx);
1525 radio_work_done(wpa_s->p2p_send_action_work);
1526 wpa_s->p2p_send_action_work = NULL;
1529 offchannel_send_action_done(wpa_s);
1533 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1534 struct p2p_go_neg_results *params)
1536 if (wpa_s->go_params == NULL) {
1537 wpa_s->go_params = os_malloc(sizeof(*params));
1538 if (wpa_s->go_params == NULL)
1541 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1546 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1547 struct p2p_go_neg_results *res)
1549 wpa_s->group_formation_reported = 0;
1550 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1551 " dev_addr " MACSTR " wps_method %d",
1552 MAC2STR(res->peer_interface_addr),
1553 MAC2STR(res->peer_device_addr), res->wps_method);
1554 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1555 res->ssid, res->ssid_len);
1556 wpa_supplicant_ap_deinit(wpa_s);
1557 wpas_copy_go_neg_results(wpa_s, res);
1558 if (res->wps_method == WPS_PBC) {
1559 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1560 #ifdef CONFIG_WPS_NFC
1561 } else if (res->wps_method == WPS_NFC) {
1562 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1563 res->peer_interface_addr,
1564 wpa_s->parent->p2p_oob_dev_pw,
1565 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1566 wpa_s->parent->p2p_oob_dev_pw_id ==
1567 DEV_PW_NFC_CONNECTION_HANDOVER ?
1568 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1571 #endif /* CONFIG_WPS_NFC */
1573 u16 dev_pw_id = DEV_PW_DEFAULT;
1574 if (wpa_s->p2p_wps_method == WPS_P2PS)
1575 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1576 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1577 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1578 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1579 wpa_s->p2p_pin, 1, dev_pw_id);
1584 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1585 struct wpa_ssid *ssid)
1587 struct wpa_ssid *persistent;
1588 struct psk_list_entry *psk;
1589 struct hostapd_data *hapd;
1591 if (!wpa_s->ap_iface)
1594 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1596 if (persistent == NULL)
1599 hapd = wpa_s->ap_iface->bss[0];
1601 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1603 struct hostapd_wpa_psk *hpsk;
1605 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1607 MAC2STR(psk->addr), psk->p2p);
1608 hpsk = os_zalloc(sizeof(*hpsk));
1611 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1613 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1615 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1616 hpsk->next = hapd->conf->ssid.wpa_psk;
1617 hapd->conf->ssid.wpa_psk = hpsk;
1622 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1626 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1627 wpa_s->p2p_group_common_freqs_num);
1629 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1630 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1631 i, wpa_s->p2p_group_common_freqs[i]);
1635 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1636 struct p2p_go_neg_results *params)
1638 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1640 wpa_s->p2p_group_common_freqs_num = 0;
1641 os_free(wpa_s->p2p_group_common_freqs);
1642 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1643 if (!wpa_s->p2p_group_common_freqs)
1646 for (i = 0; i < len; i++) {
1647 if (!wpa_s->go_params->freq_list[i])
1649 wpa_s->p2p_group_common_freqs[i] =
1650 wpa_s->go_params->freq_list[i];
1652 wpa_s->p2p_group_common_freqs_num = i;
1656 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1658 #ifndef CONFIG_NO_CONFIG_WRITE
1659 if (wpa_s->parent->conf->update_config &&
1660 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1661 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1662 #endif /* CONFIG_NO_CONFIG_WRITE */
1666 static void p2p_go_configured(void *ctx, void *data)
1668 struct wpa_supplicant *wpa_s = ctx;
1669 struct p2p_go_neg_results *params = data;
1670 struct wpa_ssid *ssid;
1671 int network_id = -1;
1673 p2p_go_save_group_common_freqs(wpa_s, params);
1674 p2p_go_dump_common_freqs(wpa_s);
1676 ssid = wpa_s->current_ssid;
1677 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1678 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1679 if (wpa_s->global->p2p_group_formation == wpa_s)
1680 wpa_s->global->p2p_group_formation = NULL;
1681 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1682 params->passphrase[0] == '\0' ?
1685 wpa_s->global->p2p_dev_addr,
1686 params->persistent_group, "");
1687 wpa_s->group_formation_reported = 1;
1689 if (wpa_s->parent->p2ps_join_addr_valid) {
1690 wpa_dbg(wpa_s, MSG_DEBUG,
1691 "P2PS: Setting default PIN for " MACSTR,
1692 MAC2STR(wpa_s->parent->p2ps_join_addr));
1693 wpa_supplicant_ap_wps_pin(wpa_s,
1694 wpa_s->parent->p2ps_join_addr,
1695 "12345670", NULL, 0, 0);
1696 wpa_s->parent->p2ps_join_addr_valid = 0;
1699 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1700 if (params->persistent_group) {
1701 network_id = wpas_p2p_store_persistent_group(
1702 wpa_s->parent, ssid,
1703 wpa_s->global->p2p_dev_addr);
1704 wpas_p2p_add_psk_list(wpa_s, ssid);
1707 network_id = ssid->id;
1708 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1709 wpas_p2p_cross_connect_setup(wpa_s);
1710 wpas_p2p_set_group_idle_timeout(wpa_s);
1712 if (wpa_s->p2p_first_connection_timeout) {
1713 wpa_dbg(wpa_s, MSG_DEBUG,
1714 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1715 wpa_s->p2p_first_connection_timeout);
1716 wpa_s->p2p_go_group_formation_completed = 0;
1717 wpa_s->global->p2p_group_formation = wpa_s;
1718 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1719 wpa_s->parent, NULL);
1720 eloop_register_timeout(
1721 wpa_s->p2p_first_connection_timeout, 0,
1722 wpas_p2p_group_formation_timeout,
1723 wpa_s->parent, NULL);
1729 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1730 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1731 params->peer_interface_addr)) {
1732 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1736 if (params->wps_method == WPS_PBC) {
1737 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1738 params->peer_device_addr);
1739 #ifdef CONFIG_WPS_NFC
1740 } else if (params->wps_method == WPS_NFC) {
1741 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1742 DEV_PW_NFC_CONNECTION_HANDOVER &&
1743 !wpa_s->parent->p2p_oob_dev_pw) {
1744 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1747 wpas_ap_wps_add_nfc_pw(
1748 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1749 wpa_s->parent->p2p_oob_dev_pw,
1750 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1751 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1752 #endif /* CONFIG_WPS_NFC */
1753 } else if (wpa_s->p2p_pin[0])
1754 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1755 wpa_s->p2p_pin, NULL, 0, 0);
1756 os_free(wpa_s->go_params);
1757 wpa_s->go_params = NULL;
1761 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1762 struct p2p_go_neg_results *params,
1763 int group_formation)
1765 struct wpa_ssid *ssid;
1767 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1768 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1769 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1774 ssid = wpa_config_add_network(wpa_s->conf);
1776 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1780 wpa_s->show_group_started = 0;
1781 wpa_s->p2p_go_group_formation_completed = 0;
1782 wpa_s->group_formation_reported = 0;
1784 wpa_config_set_network_defaults(ssid);
1785 ssid->temporary = 1;
1786 ssid->p2p_group = 1;
1787 ssid->p2p_persistent_group = params->persistent_group;
1788 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1790 ssid->frequency = params->freq;
1791 ssid->ht40 = params->ht40;
1792 ssid->vht = params->vht;
1793 ssid->ssid = os_zalloc(params->ssid_len + 1);
1795 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1796 ssid->ssid_len = params->ssid_len;
1798 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1799 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1800 ssid->proto = WPA_PROTO_RSN;
1801 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1802 ssid->group_cipher = WPA_CIPHER_CCMP;
1803 if (params->freq > 56160) {
1805 * Enable GCMP instead of CCMP as pairwise_cipher and
1806 * group_cipher in 60 GHz.
1808 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1809 ssid->group_cipher = WPA_CIPHER_GCMP;
1811 if (os_strlen(params->passphrase) > 0) {
1812 ssid->passphrase = os_strdup(params->passphrase);
1813 if (ssid->passphrase == NULL) {
1814 wpa_msg_global(wpa_s, MSG_ERROR,
1815 "P2P: Failed to copy passphrase for GO");
1816 wpa_config_remove_network(wpa_s->conf, ssid->id);
1820 ssid->passphrase = NULL;
1821 ssid->psk_set = params->psk_set;
1823 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1824 else if (ssid->passphrase)
1825 wpa_config_update_psk(ssid);
1826 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1828 wpa_s->ap_configured_cb = p2p_go_configured;
1829 wpa_s->ap_configured_cb_ctx = wpa_s;
1830 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1831 wpa_s->scan_req = NORMAL_SCAN_REQ;
1832 wpa_s->connect_without_scan = ssid;
1833 wpa_s->reassociate = 1;
1834 wpa_s->disconnected = 0;
1835 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1837 wpa_supplicant_req_scan(wpa_s, 0, 0);
1841 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1842 const struct wpa_supplicant *src)
1844 struct wpa_config *d;
1845 const struct wpa_config *s;
1850 #define C(n) if (s->n) d->n = os_strdup(s->n)
1859 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1860 os_memcpy(d->sec_device_type, s->sec_device_type,
1861 sizeof(d->sec_device_type));
1862 d->num_sec_device_types = s->num_sec_device_types;
1864 d->p2p_group_idle = s->p2p_group_idle;
1865 d->p2p_intra_bss = s->p2p_intra_bss;
1866 d->persistent_reconnect = s->persistent_reconnect;
1867 d->max_num_sta = s->max_num_sta;
1868 d->pbc_in_m1 = s->pbc_in_m1;
1869 d->ignore_old_scan_res = s->ignore_old_scan_res;
1870 d->beacon_int = s->beacon_int;
1871 d->dtim_period = s->dtim_period;
1872 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1873 d->disassoc_low_ack = s->disassoc_low_ack;
1874 d->disable_scan_offload = s->disable_scan_offload;
1875 d->passive_scan = s->passive_scan;
1877 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1878 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1879 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1881 d->p2p_cli_probe = s->p2p_cli_probe;
1885 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1886 char *ifname, size_t len)
1888 char *ifname_ptr = wpa_s->ifname;
1890 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1891 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1892 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1895 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1896 if (os_strlen(ifname) >= IFNAMSIZ &&
1897 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1900 /* Try to avoid going over the IFNAMSIZ length limit */
1901 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1902 if (os_snprintf_error(len, res) && len)
1903 ifname[len - 1] = '\0';
1908 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1909 enum wpa_driver_if_type type)
1911 char ifname[120], force_ifname[120];
1913 if (wpa_s->pending_interface_name[0]) {
1914 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1915 "- skip creation of a new one");
1916 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1917 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1918 "unknown?! ifname='%s'",
1919 wpa_s->pending_interface_name);
1925 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1926 force_ifname[0] = '\0';
1928 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1930 wpa_s->p2p_group_idx++;
1932 wpa_s->pending_interface_type = type;
1933 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1934 wpa_s->pending_interface_addr, NULL) < 0) {
1935 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1940 if (force_ifname[0]) {
1941 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1943 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1944 sizeof(wpa_s->pending_interface_name));
1946 os_strlcpy(wpa_s->pending_interface_name, ifname,
1947 sizeof(wpa_s->pending_interface_name));
1948 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1949 MACSTR, wpa_s->pending_interface_name,
1950 MAC2STR(wpa_s->pending_interface_addr));
1956 static void wpas_p2p_remove_pending_group_interface(
1957 struct wpa_supplicant *wpa_s)
1959 if (!wpa_s->pending_interface_name[0] ||
1960 is_zero_ether_addr(wpa_s->pending_interface_addr))
1961 return; /* No pending virtual interface */
1963 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1964 wpa_s->pending_interface_name);
1965 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1966 wpa_s->pending_interface_name);
1967 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1968 wpa_s->pending_interface_name[0] = '\0';
1969 wpa_s->global->pending_group_iface_for_p2ps = 0;
1973 static struct wpa_supplicant *
1974 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1976 struct wpa_interface iface;
1977 struct wpa_supplicant *group_wpa_s;
1979 if (!wpa_s->pending_interface_name[0]) {
1980 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1981 if (!wpas_p2p_create_iface(wpa_s))
1984 * Something has forced us to remove the pending interface; try
1985 * to create a new one and hope for the best that we will get
1986 * the same local address.
1988 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1989 WPA_IF_P2P_CLIENT) < 0)
1993 os_memset(&iface, 0, sizeof(iface));
1994 iface.ifname = wpa_s->pending_interface_name;
1995 iface.driver = wpa_s->driver->name;
1996 if (wpa_s->conf->ctrl_interface == NULL &&
1997 wpa_s->parent != wpa_s &&
1999 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2000 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2002 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2003 iface.driver_param = wpa_s->conf->driver_param;
2004 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2005 if (group_wpa_s == NULL) {
2006 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2007 "wpa_supplicant interface");
2010 wpa_s->pending_interface_name[0] = '\0';
2011 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2012 P2P_GROUP_INTERFACE_CLIENT;
2013 wpa_s->global->p2p_group_formation = group_wpa_s;
2014 wpa_s->global->pending_group_iface_for_p2ps = 0;
2016 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2022 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2025 struct wpa_supplicant *wpa_s = eloop_ctx;
2026 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2027 wpas_p2p_group_formation_failed(wpa_s, 0);
2031 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2032 int already_deleted)
2034 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2035 wpa_s->parent, NULL);
2036 if (wpa_s->global->p2p)
2037 p2p_group_formation_failed(wpa_s->global->p2p);
2038 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2042 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2044 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2045 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2046 wpa_s->parent, NULL);
2047 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2048 wpa_s->parent, NULL);
2049 wpa_s->global->p2p_fail_on_wps_complete = 0;
2053 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2055 if (wpa_s->global->p2p_group_formation != wpa_s)
2057 /* Speed up group formation timeout since this cannot succeed */
2058 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2059 wpa_s->parent, NULL);
2060 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2061 wpa_s->parent, NULL);
2065 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2067 struct wpa_supplicant *wpa_s = ctx;
2069 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2070 wpa_drv_cancel_remain_on_channel(wpa_s);
2071 wpa_s->off_channel_freq = 0;
2072 wpa_s->roc_waiting_drv_freq = 0;
2076 wpa_msg_global(wpa_s, MSG_INFO,
2077 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2079 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2080 wpas_p2p_remove_pending_group_interface(wpa_s);
2084 if (!res->role_go) {
2085 /* Inform driver of the operating channel of GO. */
2086 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2089 if (wpa_s->p2p_go_ht40)
2091 if (wpa_s->p2p_go_vht)
2094 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2095 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2097 res->role_go ? "GO" : "client", res->freq, res->ht40,
2098 MAC2STR(res->peer_device_addr),
2099 MAC2STR(res->peer_interface_addr),
2100 p2p_wps_method_text(res->wps_method));
2101 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2103 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2104 struct wpa_ssid *ssid;
2105 ssid = wpa_config_get_network(wpa_s->conf,
2106 wpa_s->p2p_persistent_id);
2107 if (ssid && ssid->disabled == 2 &&
2108 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2109 size_t len = os_strlen(ssid->passphrase);
2110 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2111 "on requested persistent group");
2112 os_memcpy(res->passphrase, ssid->passphrase, len);
2113 res->passphrase[len] = '\0';
2117 if (wpa_s->create_p2p_iface) {
2118 struct wpa_supplicant *group_wpa_s =
2119 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2120 if (group_wpa_s == NULL) {
2121 wpas_p2p_remove_pending_group_interface(wpa_s);
2122 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2124 wpas_p2p_group_formation_failed(wpa_s, 1);
2127 if (group_wpa_s != wpa_s) {
2128 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2129 sizeof(group_wpa_s->p2p_pin));
2130 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2132 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2133 wpa_s->pending_interface_name[0] = '\0';
2134 group_wpa_s->p2p_in_provisioning = 1;
2137 wpas_start_wps_go(group_wpa_s, res, 1);
2139 wpas_start_wps_enrollee(group_wpa_s, res);
2141 wpa_s->p2p_in_provisioning = 1;
2142 wpa_s->global->p2p_group_formation = wpa_s;
2145 wpas_start_wps_go(wpa_s, res, 1);
2147 wpas_start_wps_enrollee(ctx, res);
2150 wpa_s->p2p_long_listen = 0;
2151 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2153 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2154 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2155 (res->peer_config_timeout % 100) * 10000,
2156 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2160 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2163 struct wpa_supplicant *wpa_s = ctx;
2164 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2165 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2166 dev_passwd_id, go_intent);
2168 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2172 static void wpas_dev_found(void *ctx, const u8 *addr,
2173 const struct p2p_peer_info *info,
2176 #ifndef CONFIG_NO_STDOUT_DEBUG
2177 struct wpa_supplicant *wpa_s = ctx;
2178 char devtype[WPS_DEV_TYPE_BUFSIZE];
2179 char *wfd_dev_info_hex = NULL;
2181 #ifdef CONFIG_WIFI_DISPLAY
2182 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2183 WFD_SUBELEM_DEVICE_INFO);
2184 #endif /* CONFIG_WIFI_DISPLAY */
2186 if (info->p2ps_instance) {
2188 const u8 *buf = wpabuf_head(info->p2ps_instance);
2189 size_t len = wpabuf_len(info->p2ps_instance);
2196 if (len < 4 + 2 + 1)
2198 id = WPA_GET_LE32(buf);
2200 methods = WPA_GET_BE16(buf);
2203 if (str_len > len - 4 - 2 - 1)
2205 os_memcpy(str, buf, str_len);
2206 str[str_len] = '\0';
2208 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2210 wpa_msg_global(wpa_s, MSG_INFO,
2211 P2P_EVENT_DEVICE_FOUND MACSTR
2212 " p2p_dev_addr=" MACSTR
2213 " pri_dev_type=%s name='%s'"
2214 " config_methods=0x%x"
2217 " adv_id=%x asp_svc=%s%s",
2219 MAC2STR(info->p2p_device_addr),
2220 wps_dev_type_bin2str(
2222 devtype, sizeof(devtype)),
2223 info->device_name, methods,
2224 info->dev_capab, info->group_capab,
2226 info->vendor_elems ?
2227 " vendor_elems=1" : "");
2232 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2233 " p2p_dev_addr=" MACSTR
2234 " pri_dev_type=%s name='%s' config_methods=0x%x "
2235 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2236 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2237 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2239 info->device_name, info->config_methods,
2240 info->dev_capab, info->group_capab,
2241 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2242 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2243 info->vendor_elems ? " vendor_elems=1" : "",
2247 os_free(wfd_dev_info_hex);
2248 #endif /* CONFIG_NO_STDOUT_DEBUG */
2250 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2254 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2256 struct wpa_supplicant *wpa_s = ctx;
2258 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2259 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2261 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2265 static void wpas_find_stopped(void *ctx)
2267 struct wpa_supplicant *wpa_s = ctx;
2268 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2269 wpas_notify_p2p_find_stopped(wpa_s);
2273 struct wpas_p2p_listen_work {
2275 unsigned int duration;
2276 struct wpabuf *probe_resp_ie;
2280 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2284 wpabuf_free(lwork->probe_resp_ie);
2289 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2291 struct wpas_p2p_listen_work *lwork;
2293 if (!wpa_s->p2p_listen_work)
2296 lwork = wpa_s->p2p_listen_work->ctx;
2297 wpas_p2p_listen_work_free(lwork);
2298 radio_work_done(wpa_s->p2p_listen_work);
2299 wpa_s->p2p_listen_work = NULL;
2303 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2305 struct wpa_supplicant *wpa_s = work->wpa_s;
2306 struct wpas_p2p_listen_work *lwork = work->ctx;
2307 unsigned int duration;
2310 if (work->started) {
2311 wpa_s->p2p_listen_work = NULL;
2312 wpas_stop_listen(wpa_s);
2314 wpas_p2p_listen_work_free(lwork);
2318 wpa_s->p2p_listen_work = work;
2320 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2322 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2323 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2324 "report received Probe Request frames");
2325 wpas_p2p_listen_work_done(wpa_s);
2329 wpa_s->pending_listen_freq = lwork->freq;
2330 wpa_s->pending_listen_duration = lwork->duration;
2332 duration = lwork->duration;
2333 #ifdef CONFIG_TESTING_OPTIONS
2334 if (wpa_s->extra_roc_dur) {
2335 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2336 duration, duration + wpa_s->extra_roc_dur);
2337 duration += wpa_s->extra_roc_dur;
2339 #endif /* CONFIG_TESTING_OPTIONS */
2341 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2342 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2343 "to remain on channel (%u MHz) for Listen "
2344 "state", lwork->freq);
2345 wpas_p2p_listen_work_done(wpa_s);
2346 wpa_s->pending_listen_freq = 0;
2349 wpa_s->off_channel_freq = 0;
2350 wpa_s->roc_waiting_drv_freq = lwork->freq;
2354 static int wpas_start_listen(void *ctx, unsigned int freq,
2355 unsigned int duration,
2356 const struct wpabuf *probe_resp_ie)
2358 struct wpa_supplicant *wpa_s = ctx;
2359 struct wpas_p2p_listen_work *lwork;
2361 if (wpa_s->p2p_listen_work) {
2362 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2366 lwork = os_zalloc(sizeof(*lwork));
2370 lwork->duration = duration;
2371 if (probe_resp_ie) {
2372 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2373 if (lwork->probe_resp_ie == NULL) {
2374 wpas_p2p_listen_work_free(lwork);
2379 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2381 wpas_p2p_listen_work_free(lwork);
2389 static void wpas_stop_listen(void *ctx)
2391 struct wpa_supplicant *wpa_s = ctx;
2392 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2393 wpa_drv_cancel_remain_on_channel(wpa_s);
2394 wpa_s->off_channel_freq = 0;
2395 wpa_s->roc_waiting_drv_freq = 0;
2397 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2400 * Don't cancel Probe Request RX reporting for a connected P2P Client
2401 * handling Probe Request frames.
2403 if (!wpa_s->p2p_cli_probe)
2404 wpa_drv_probe_req_report(wpa_s, 0);
2406 wpas_p2p_listen_work_done(wpa_s);
2410 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2413 struct wpa_supplicant *wpa_s = ctx;
2414 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2419 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2420 const u8 *peer, const char *params,
2421 unsigned int generated_pin)
2423 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2424 " %08d%s", MAC2STR(peer), generated_pin, params);
2428 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2429 const u8 *peer, const char *params)
2431 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2432 "%s", MAC2STR(peer), params);
2436 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2437 const u8 *dev_addr, const u8 *pri_dev_type,
2438 const char *dev_name, u16 supp_config_methods,
2439 u8 dev_capab, u8 group_capab, const u8 *group_id,
2440 size_t group_id_len)
2442 struct wpa_supplicant *wpa_s = ctx;
2443 char devtype[WPS_DEV_TYPE_BUFSIZE];
2445 u8 empty_dev_type[8];
2446 unsigned int generated_pin = 0;
2447 struct wpa_supplicant *group = NULL;
2451 for (group = wpa_s->global->ifaces; group; group = group->next)
2453 struct wpa_ssid *s = group->current_ssid;
2455 s->mode == WPAS_MODE_P2P_GO &&
2456 group_id_len - ETH_ALEN == s->ssid_len &&
2457 os_memcmp(group_id + ETH_ALEN, s->ssid,
2463 if (pri_dev_type == NULL) {
2464 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2465 pri_dev_type = empty_dev_type;
2467 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2468 " pri_dev_type=%s name='%s' config_methods=0x%x "
2469 "dev_capab=0x%x group_capab=0x%x%s%s",
2471 wps_dev_type_bin2str(pri_dev_type, devtype,
2473 dev_name, supp_config_methods, dev_capab, group_capab,
2474 group ? " group=" : "",
2475 group ? group->ifname : "");
2476 if (os_snprintf_error(sizeof(params), res))
2477 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2478 params[sizeof(params) - 1] = '\0';
2480 if (config_methods & WPS_CONFIG_DISPLAY) {
2481 generated_pin = wps_generate_pin();
2482 wpas_prov_disc_local_display(wpa_s, peer, params,
2484 } else if (config_methods & WPS_CONFIG_KEYPAD)
2485 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2486 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2487 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2488 MACSTR "%s", MAC2STR(peer), params);
2490 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2491 P2P_PROV_DISC_SUCCESS,
2492 config_methods, generated_pin);
2496 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2498 struct wpa_supplicant *wpa_s = ctx;
2499 unsigned int generated_pin = 0;
2502 if (wpa_s->pending_pd_before_join &&
2503 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2504 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2505 wpa_s->pending_pd_before_join = 0;
2506 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2507 "join-existing-group operation");
2508 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2512 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2513 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2516 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2517 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2518 if (os_snprintf_error(sizeof(params), res))
2519 params[sizeof(params) - 1] = '\0';
2523 if (config_methods & WPS_CONFIG_DISPLAY)
2524 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2525 else if (config_methods & WPS_CONFIG_KEYPAD) {
2526 generated_pin = wps_generate_pin();
2527 wpas_prov_disc_local_display(wpa_s, peer, params,
2529 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2530 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2531 MACSTR "%s", MAC2STR(peer), params);
2533 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2534 P2P_PROV_DISC_SUCCESS,
2535 config_methods, generated_pin);
2539 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2540 enum p2p_prov_disc_status status,
2541 u32 adv_id, const u8 *adv_mac,
2542 const char *deferred_session_resp)
2544 struct wpa_supplicant *wpa_s = ctx;
2546 if (wpa_s->p2p_fallback_to_go_neg) {
2547 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2548 "failed - fall back to GO Negotiation");
2549 wpa_msg_global(wpa_s->parent, MSG_INFO,
2550 P2P_EVENT_FALLBACK_TO_GO_NEG
2551 "reason=PD-failed");
2552 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2556 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2557 wpa_s->pending_pd_before_join = 0;
2558 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2559 "join-existing-group operation (no ACK for PD "
2561 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2565 if (adv_id && adv_mac && deferred_session_resp) {
2566 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2567 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2568 " deferred_session_resp='%s'",
2569 MAC2STR(peer), status, adv_id,
2570 deferred_session_resp);
2571 } else if (adv_id && adv_mac) {
2572 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2573 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2574 MAC2STR(peer), status, adv_id);
2576 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2577 " p2p_dev_addr=" MACSTR " status=%d",
2578 MAC2STR(peer), status);
2581 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2586 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2588 if (channels == NULL)
2589 return 1; /* Assume no restrictions */
2590 return p2p_channels_includes_freq(channels, freq);
2596 * Pick the best frequency to use from all the currently used frequencies.
2598 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2599 struct wpa_used_freq_data *freqs,
2604 /* find a candidate freq that is supported by P2P */
2605 for (c = 0; c < num; c++)
2606 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2612 /* once we have a candidate, try to find a 'better' one */
2613 for (i = c + 1; i < num; i++) {
2614 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2618 * 1. Infrastructure station interfaces have higher preference.
2619 * 2. P2P Clients have higher preference.
2622 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2627 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2630 return freqs[c].freq;
2634 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2635 const u8 *go_dev_addr, const u8 *ssid,
2636 size_t ssid_len, int *go, u8 *group_bssid,
2637 int *force_freq, int persistent_group,
2638 const struct p2p_channels *channels,
2641 struct wpa_supplicant *wpa_s = ctx;
2643 struct wpa_used_freq_data *freqs;
2644 struct wpa_supplicant *grp;
2647 if (!persistent_group) {
2648 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2649 " to join an active group (SSID: %s)",
2650 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2651 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2652 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2654 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2655 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2656 "authorized invitation");
2660 #ifdef CONFIG_WPS_NFC
2661 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2662 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2663 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2664 wpa_s->p2p_wps_method = WPS_NFC;
2665 wpa_s->pending_join_wps_method = WPS_NFC;
2666 os_memcpy(wpa_s->pending_join_dev_addr,
2667 go_dev_addr, ETH_ALEN);
2668 os_memcpy(wpa_s->pending_join_iface_addr,
2672 #endif /* CONFIG_WPS_NFC */
2675 * Do not accept the invitation automatically; notify user and
2678 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2681 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2683 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2684 "running persistent group");
2686 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2690 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2691 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2692 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2693 "invitation to re-invoke a persistent group");
2694 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2695 } else if (!wpa_s->conf->persistent_reconnect)
2696 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2698 for (s = wpa_s->conf->ssid; s; s = s->next) {
2699 if (s->disabled == 2 &&
2700 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2701 s->ssid_len == ssid_len &&
2702 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2707 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2708 " requested reinvocation of an unknown group",
2710 return P2P_SC_FAIL_UNKNOWN_GROUP;
2713 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2715 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2716 wpa_printf(MSG_DEBUG, "P2P: The only available "
2717 "interface is already in use - reject "
2719 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2721 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2722 } else if (s->mode == WPAS_MODE_P2P_GO) {
2724 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2726 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2727 "interface address for the group");
2728 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2730 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2735 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2738 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2739 sizeof(struct wpa_used_freq_data));
2741 int num_channels = wpa_s->num_multichan_concurrent;
2742 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2743 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2747 /* Get one of the frequencies currently in use */
2748 if (best_freq > 0) {
2749 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2750 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2752 if (wpa_s->num_multichan_concurrent < 2 ||
2753 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2754 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2755 *force_freq = best_freq;
2759 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2760 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2762 /* We are the client */
2763 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2764 "running a GO but we are capable of MCC, "
2765 "figure out the best channel to use");
2767 } else if (!freq_included(channels, *force_freq)) {
2768 /* We are the GO, and *force_freq is not in the
2770 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2771 "in intersection but we are capable of MCC, "
2772 "figure out the best channel to use",
2778 return P2P_SC_SUCCESS;
2782 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2783 const u8 *ssid, size_t ssid_len,
2784 const u8 *go_dev_addr, u8 status,
2787 struct wpa_supplicant *wpa_s = ctx;
2790 for (s = wpa_s->conf->ssid; s; s = s->next) {
2791 if (s->disabled == 2 &&
2792 s->ssid_len == ssid_len &&
2793 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2797 if (status == P2P_SC_SUCCESS) {
2798 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2799 " was accepted; op_freq=%d MHz, SSID=%s",
2800 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2802 int go = s->mode == WPAS_MODE_P2P_GO;
2803 wpas_p2p_group_add_persistent(
2804 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2805 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2807 wpa_s->user_initiated_pd = 0;
2808 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2809 wpa_s->p2p_wps_method, 0, op_freq,
2815 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2816 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2817 " was rejected (status %u)", MAC2STR(sa), status);
2823 wpa_msg_global(wpa_s, MSG_INFO,
2824 P2P_EVENT_INVITATION_RECEIVED
2825 "sa=" MACSTR " go_dev_addr=" MACSTR
2826 " bssid=" MACSTR " unknown-network",
2827 MAC2STR(sa), MAC2STR(go_dev_addr),
2830 wpa_msg_global(wpa_s, MSG_INFO,
2831 P2P_EVENT_INVITATION_RECEIVED
2832 "sa=" MACSTR " go_dev_addr=" MACSTR
2834 MAC2STR(sa), MAC2STR(go_dev_addr));
2839 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2840 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2841 "sa=" MACSTR " persistent=%d freq=%d",
2842 MAC2STR(sa), s->id, op_freq);
2844 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2845 "sa=" MACSTR " persistent=%d",
2846 MAC2STR(sa), s->id);
2851 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2852 struct wpa_ssid *ssid,
2853 const u8 *peer, int inv)
2856 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
2861 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2862 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
2866 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
2867 if (ssid->mode != WPAS_MODE_P2P_GO &&
2868 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2869 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2870 "due to invitation result", ssid->id);
2871 wpas_notify_network_removed(wpa_s, ssid);
2872 wpa_config_remove_network(wpa_s->conf, ssid->id);
2875 return; /* Peer not found in client list */
2878 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
2879 "group %d client list%s",
2880 MAC2STR(peer), ssid->id,
2881 inv ? " due to invitation result" : "");
2882 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
2883 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
2884 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
2885 ssid->num_p2p_clients--;
2886 if (p2p_wpa_s->conf->update_config &&
2887 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
2888 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2892 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2895 struct wpa_ssid *ssid;
2897 wpa_s = wpa_s->global->p2p_invite_group;
2899 return; /* No known invitation group */
2900 ssid = wpa_s->current_ssid;
2901 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
2902 !ssid->p2p_persistent_group)
2903 return; /* Not operating as a GO in persistent group */
2904 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
2905 ssid->ssid, ssid->ssid_len);
2906 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2910 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
2911 const struct p2p_channels *channels,
2912 const u8 *peer, int neg_freq,
2915 struct wpa_supplicant *wpa_s = ctx;
2916 struct wpa_ssid *ssid;
2920 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2921 "status=%d " MACSTR,
2922 status, MAC2STR(bssid));
2924 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2925 "status=%d ", status);
2927 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2929 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
2930 status, MAC2STR(peer));
2931 if (wpa_s->pending_invite_ssid_id == -1) {
2932 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
2933 wpas_remove_persistent_client(wpa_s, peer);
2934 return; /* Invitation to active group */
2937 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2938 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
2939 "invitation exchange to indicate readiness for "
2943 if (status != P2P_SC_SUCCESS) {
2944 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
2945 ssid = wpa_config_get_network(
2946 wpa_s->conf, wpa_s->pending_invite_ssid_id);
2947 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2949 wpas_p2p_remove_pending_group_interface(wpa_s);
2953 ssid = wpa_config_get_network(wpa_s->conf,
2954 wpa_s->pending_invite_ssid_id);
2956 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2957 "data matching with invitation");
2962 * The peer could have missed our ctrl::ack frame for Invitation
2963 * Response and continue retransmitting the frame. To reduce the
2964 * likelihood of the peer not getting successful TX status for the
2965 * Invitation Response frame, wait a short time here before starting
2966 * the persistent group so that we will remain on the current channel to
2967 * acknowledge any possible retransmission from the peer.
2969 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2970 "starting persistent group");
2973 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
2974 freq_included(channels, neg_freq))
2976 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
2977 freq_included(channels, peer_oper_freq))
2978 freq = peer_oper_freq;
2982 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
2983 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2984 wpas_p2p_group_add_persistent(wpa_s, ssid,
2985 ssid->mode == WPAS_MODE_P2P_GO,
2986 wpa_s->p2p_persistent_go_freq,
2988 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
2990 ssid->mode == WPAS_MODE_P2P_GO ?
2991 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
2996 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2999 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3001 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3005 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3007 reg->channel[reg->channels] = chan;
3012 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3013 struct p2p_channels *chan,
3014 struct p2p_channels *cli_chan)
3018 wpa_s->global->p2p_24ghz_social_channels = 1;
3020 os_memset(cli_chan, 0, sizeof(*cli_chan));
3022 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3025 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3026 chan->reg_class[cla].reg_class = 81;
3027 chan->reg_class[cla].channels = 0;
3028 for (i = 0; i < 11; i++) {
3029 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3030 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3032 if (chan->reg_class[cla].channels)
3035 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3038 /* Operating class 115 - 5 GHz, channels 36-48 */
3039 chan->reg_class[cla].reg_class = 115;
3040 chan->reg_class[cla].channels = 0;
3041 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3042 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3043 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3044 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3045 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3046 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3047 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3048 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3049 if (chan->reg_class[cla].channels)
3052 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3055 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3056 chan->reg_class[cla].reg_class = 124;
3057 chan->reg_class[cla].channels = 0;
3058 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3059 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3060 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3061 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3062 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3063 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3064 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3065 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3066 if (chan->reg_class[cla].channels)
3069 chan->reg_classes = cla;
3074 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3076 enum hostapd_hw_mode mode)
3080 for (i = 0; i < num_modes; i++) {
3081 if (modes[i].mode == mode)
3090 NOT_ALLOWED, NO_IR, ALLOWED
3093 static int has_channel(struct wpa_global *global,
3094 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3099 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3101 if (wpas_p2p_disallowed_freq(global, freq))
3104 for (i = 0; i < mode->num_channels; i++) {
3105 if (mode->channels[i].chan == chan) {
3107 *flags = mode->channels[i].flag;
3108 if (mode->channels[i].flag &
3109 (HOSTAPD_CHAN_DISABLED |
3110 HOSTAPD_CHAN_RADAR))
3112 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3122 struct p2p_oper_class_map {
3123 enum hostapd_hw_mode mode;
3128 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3131 static const struct p2p_oper_class_map op_class[] = {
3132 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3133 #if 0 /* Do not enable HT40 on 2 GHz for now */
3134 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3135 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3137 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3138 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3139 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
3140 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3141 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3142 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3143 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3146 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3147 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3148 * 80 MHz, but currently use the following definition for simplicity
3149 * (these center frequencies are not actual channels, which makes
3150 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3151 * removing invalid channels.
3153 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3154 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3155 { -1, 0, 0, 0, 0, BW20 }
3159 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3160 struct hostapd_hw_modes *mode,
3163 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3166 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3169 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3171 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3172 * so the center channel is 6 channels away from the start/end.
3174 if (channel >= center_channels[i] - 6 &&
3175 channel <= center_channels[i] + 6)
3176 return center_channels[i];
3182 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3183 struct hostapd_hw_modes *mode,
3188 enum chan_allowed res, ret = ALLOWED;
3190 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3193 if (center_chan >= 58 && center_chan <= 138)
3194 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3196 /* check all the channels are available */
3197 for (i = 0; i < 4; i++) {
3198 int adj_chan = center_chan - 6 + i * 4;
3200 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3201 if (res == NOT_ALLOWED)
3206 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3208 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3210 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3212 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3220 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3221 struct hostapd_hw_modes *mode,
3225 enum chan_allowed res, res2;
3227 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3228 if (bw == BW40MINUS) {
3229 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3231 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3232 } else if (bw == BW40PLUS) {
3233 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3235 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3236 } else if (bw == BW80) {
3237 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3240 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3242 if (res == NO_IR || res2 == NO_IR)
3248 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3249 struct p2p_channels *chan,
3250 struct p2p_channels *cli_chan)
3252 struct hostapd_hw_modes *mode;
3253 int cla, op, cli_cla;
3255 if (wpa_s->hw.modes == NULL) {
3256 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3257 "of all supported channels; assume dualband "
3259 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3264 for (op = 0; op_class[op].op_class; op++) {
3265 const struct p2p_oper_class_map *o = &op_class[op];
3267 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3269 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3272 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3273 wpa_s->global->p2p_24ghz_social_channels = 1;
3274 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3275 enum chan_allowed res;
3276 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3277 if (res == ALLOWED) {
3279 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3281 reg = &chan->reg_class[cla];
3283 reg->reg_class = o->op_class;
3285 reg->channel[reg->channels] = ch;
3287 } else if (res == NO_IR &&
3288 wpa_s->conf->p2p_add_cli_chan) {
3289 if (cli_reg == NULL) {
3290 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3292 cli_reg = &cli_chan->reg_class[cli_cla];
3294 cli_reg->reg_class = o->op_class;
3296 cli_reg->channel[cli_reg->channels] = ch;
3297 cli_reg->channels++;
3301 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3302 reg->channel, reg->channels);
3305 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3306 cli_reg->channel, cli_reg->channels);
3310 chan->reg_classes = cla;
3311 cli_chan->reg_classes = cli_cla;
3317 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3318 struct hostapd_hw_modes *mode, u8 channel)
3321 enum chan_allowed ret;
3323 for (op = 0; op_class[op].op_class; op++) {
3324 const struct p2p_oper_class_map *o = &op_class[op];
3327 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3328 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3329 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3332 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3334 return (o->bw == BW40MINUS) ? -1 : 1;
3341 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3342 struct hostapd_hw_modes *mode, u8 channel)
3344 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3347 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3351 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3354 struct wpa_supplicant *wpa_s = ctx;
3356 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3357 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3363 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3367 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3368 const u8 *ssid, size_t ssid_len)
3370 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3371 struct wpa_ssid *s = wpa_s->current_ssid;
3374 if (s->mode != WPAS_MODE_P2P_GO &&
3375 s->mode != WPAS_MODE_AP &&
3376 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3378 if (s->ssid_len != ssid_len ||
3379 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3389 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3390 const u8 *peer_dev_addr)
3392 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3393 struct wpa_ssid *ssid = wpa_s->current_ssid;
3396 if (ssid->mode != WPAS_MODE_INFRA)
3398 if (wpa_s->wpa_state != WPA_COMPLETED &&
3399 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3401 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3409 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3411 struct wpa_supplicant *wpa_s = ctx;
3413 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3417 static int wpas_is_concurrent_session_active(void *ctx)
3419 struct wpa_supplicant *wpa_s = ctx;
3420 struct wpa_supplicant *ifs;
3422 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3425 if (ifs->wpa_state > WPA_ASSOCIATED)
3432 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3434 struct wpa_supplicant *wpa_s = ctx;
3435 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3439 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3440 const char *conf_p2p_dev)
3442 struct wpa_interface iface;
3443 struct wpa_supplicant *p2pdev_wpa_s;
3445 char force_name[100];
3448 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3450 if (os_snprintf_error(sizeof(ifname), ret))
3452 force_name[0] = '\0';
3453 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3454 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3455 force_name, wpa_s->pending_interface_addr, NULL);
3457 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3460 os_strlcpy(wpa_s->pending_interface_name, ifname,
3461 sizeof(wpa_s->pending_interface_name));
3463 os_memset(&iface, 0, sizeof(iface));
3465 iface.ifname = wpa_s->pending_interface_name;
3466 iface.driver = wpa_s->driver->name;
3467 iface.driver_param = wpa_s->conf->driver_param;
3470 * If a P2P Device configuration file was given, use it as the interface
3471 * configuration file (instead of using parent's configuration file.
3474 iface.confname = conf_p2p_dev;
3475 iface.ctrl_interface = NULL;
3477 iface.confname = wpa_s->confname;
3478 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3481 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3482 if (!p2pdev_wpa_s) {
3483 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3487 wpa_s->pending_interface_name[0] = '\0';
3492 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3493 const u8 *noa, size_t noa_len)
3495 struct wpa_supplicant *wpa_s, *intf = ctx;
3498 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3499 if (wpa_s->waiting_presence_resp)
3503 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3506 wpa_s->waiting_presence_resp = 0;
3508 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3509 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3510 " status=%u noa=%s", MAC2STR(src), status, hex);
3514 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3515 size_t ssid_len, u8 *go_dev_addr,
3516 u8 *ret_ssid, size_t *ret_ssid_len,
3517 u8 *intended_iface_addr)
3519 struct wpa_supplicant *wpa_s = ctx;
3522 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3524 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3525 *ret_ssid_len = s->ssid_len;
3526 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3528 if (s->mode != WPAS_MODE_P2P_GO) {
3529 os_memset(intended_iface_addr, 0, ETH_ALEN);
3530 } else if (wpas_p2p_create_iface(wpa_s)) {
3531 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3534 os_memcpy(intended_iface_addr,
3535 wpa_s->pending_interface_addr, ETH_ALEN);
3537 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3547 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3548 u8 *ssid, size_t *ssid_len, int *group_iface)
3550 struct wpa_supplicant *wpa_s = ctx;
3555 * group_iface will be set to 1 only if a dedicated interface for P2P
3556 * role is required. First, we try to reuse an active GO. However,
3557 * if it is not present, we will try to reactivate an existing
3558 * persistent group and set group_iface to 1, so the caller will know
3559 * that the pending interface should be used.
3562 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3564 s = wpas_p2p_get_persistent_go(wpa_s);
3565 *group_iface = wpas_p2p_create_iface(wpa_s);
3567 os_memcpy(bssid, s->bssid, ETH_ALEN);
3572 os_memcpy(intended_addr, bssid, ETH_ALEN);
3573 os_memcpy(ssid, s->ssid, s->ssid_len);
3574 *ssid_len = s->ssid_len;
3580 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3581 const u8 *ssid, size_t ssid_len)
3583 struct wpa_supplicant *wpa_s = ctx;
3585 int save_config = 0;
3588 /* Start with our first choice of Persistent Groups */
3589 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3590 if (go && ssid && ssid_len &&
3591 s->ssid_len == ssid_len &&
3592 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3593 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3596 /* Remove stale persistent group */
3597 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3598 wpa_config_remove_network(wpa_s->conf, s->id);
3603 for (i = 0; i < s->num_p2p_clients; i++) {
3604 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3605 peer, ETH_ALEN) != 0)
3608 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3609 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3610 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3613 s->num_p2p_clients--;
3618 p2p_config_write(wpa_s);
3620 /* Return TRUE if valid SSID remains */
3625 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3626 const u8 *feat_cap, size_t feat_cap_len)
3628 static const char pref[] = " feature_cap=";
3634 * We expect a feature capability to contain at least one byte to be
3635 * reported. The string buffer provided by the caller function is
3636 * expected to be big enough to contain all bytes of the attribute for
3637 * known specifications. This function truncates the reported bytes if
3638 * the feature capability data exceeds the string buffer size.
3640 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3643 os_memcpy(buf, pref, sizeof(pref));
3644 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3645 buf_len - sizeof(pref) + 1,
3646 feat_cap, feat_cap_len);
3648 if (ret != (2 * (int) feat_cap_len))
3649 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3653 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3654 const u8 *adv_mac, const u8 *ses_mac,
3655 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3656 u8 conncap, int passwd_id,
3657 const u8 *persist_ssid,
3658 size_t persist_ssid_size, int response_done,
3659 int prov_start, const char *session_info,
3660 const u8 *feat_cap, size_t feat_cap_len)
3662 struct wpa_supplicant *wpa_s = ctx;
3664 struct wpa_ssid *persistent_go, *stale, *s;
3665 int save_config = 0;
3666 struct wpa_supplicant *go_wpa_s;
3667 char feat_cap_str[256];
3672 os_memset(mac, 0, ETH_ALEN);
3680 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3681 feat_cap, feat_cap_len);
3684 if (session_info == NULL) {
3685 wpa_msg_global(wpa_s, MSG_INFO,
3686 P2P_EVENT_P2PS_PROVISION_START MACSTR
3687 " adv_id=%x conncap=%x"
3689 " session=%x mac=" MACSTR
3690 " dev_passwd_id=%d%s",
3691 MAC2STR(dev), adv_id, conncap,
3693 ses_id, MAC2STR(ses_mac),
3694 passwd_id, feat_cap_str);
3696 wpa_msg_global(wpa_s, MSG_INFO,
3697 P2P_EVENT_P2PS_PROVISION_START MACSTR
3698 " adv_id=%x conncap=%x"
3700 " session=%x mac=" MACSTR
3701 " dev_passwd_id=%d info='%s'%s",
3702 MAC2STR(dev), adv_id, conncap,
3704 ses_id, MAC2STR(ses_mac),
3705 passwd_id, session_info, feat_cap_str);
3710 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3711 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3713 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3714 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3715 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3717 if (persistent_go && !persistent_go->num_p2p_clients) {
3718 /* remove empty persistent GO */
3719 wpa_config_remove_network(wpa_s->conf,
3723 wpa_msg_global(wpa_s, MSG_INFO,
3724 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3726 " adv_id=%x adv_mac=" MACSTR
3727 " session=%x mac=" MACSTR "%s",
3728 MAC2STR(dev), status,
3729 adv_id, MAC2STR(adv_mac),
3730 ses_id, MAC2STR(ses_mac), feat_cap_str);
3734 /* Clean up stale persistent groups with this device */
3735 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3738 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
3739 os_memcmp(grp_mac, mac, ETH_ALEN) == 0) {
3740 wpa_dbg(wpa_s, MSG_ERROR,
3741 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3746 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3750 if (s && s->ssid_len == stale->ssid_len &&
3751 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3752 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3755 /* Remove stale persistent group */
3756 if (stale->mode != WPAS_MODE_P2P_GO ||
3757 stale->num_p2p_clients <= 1) {
3758 wpa_config_remove_network(wpa_s->conf, stale->id);
3762 for (i = 0; i < stale->num_p2p_clients; i++) {
3763 if (os_memcmp(stale->p2p_client_list +
3765 dev, ETH_ALEN) == 0) {
3766 os_memmove(stale->p2p_client_list +
3768 stale->p2p_client_list +
3770 (stale->num_p2p_clients -
3775 stale->num_p2p_clients--;
3781 p2p_config_write(wpa_s);
3784 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3785 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3787 if (persistent_go && s != persistent_go &&
3788 !persistent_go->num_p2p_clients) {
3789 /* remove empty persistent GO */
3790 wpa_config_remove_network(wpa_s->conf,
3795 wpa_msg_global(wpa_s, MSG_INFO,
3796 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3798 " adv_id=%x adv_mac=" MACSTR
3799 " session=%x mac=" MACSTR
3801 MAC2STR(dev), status,
3802 adv_id, MAC2STR(adv_mac),
3803 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
3807 if (conncap == P2PS_SETUP_GROUP_OWNER) {
3809 * We need to copy the interface name. Simply saving a
3810 * pointer isn't enough, since if we use pending_interface_name
3811 * it will be overwritten when the group is added.
3813 char go_ifname[100];
3815 go_ifname[0] = '\0';
3817 wpa_s->global->pending_p2ps_group = 1;
3819 if (!wpas_p2p_create_iface(wpa_s))
3820 os_memcpy(go_ifname, wpa_s->ifname,
3822 else if (wpa_s->pending_interface_name[0])
3823 os_memcpy(go_ifname,
3824 wpa_s->pending_interface_name,
3827 if (!go_ifname[0]) {
3828 wpas_p2ps_prov_complete(
3829 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3830 dev, adv_mac, ses_mac,
3831 NULL, adv_id, ses_id, 0, 0,
3832 NULL, 0, 0, 0, NULL, NULL, 0);
3836 /* If PD Resp complete, start up the GO */
3837 if (response_done && persistent_go) {
3838 wpas_p2p_group_add_persistent(
3839 wpa_s, persistent_go,
3840 0, 0, 0, 0, 0, NULL,
3841 persistent_go->mode ==
3843 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3845 } else if (response_done) {
3846 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3849 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3850 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3851 wpa_s->p2ps_join_addr_valid = 1;
3852 wpa_dbg(wpa_s, MSG_DEBUG,
3853 "P2PS: Saving PIN for " MACSTR,
3856 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3857 os_memcpy(go_ifname, go_wpa_s->ifname,
3860 wpa_dbg(go_wpa_s, MSG_DEBUG,
3861 "P2P: Setting PIN-1 For " MACSTR, MAC2STR(dev));
3862 wpa_supplicant_ap_wps_pin(go_wpa_s, dev, "12345670",
3865 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3866 wpa_s->p2ps_join_addr_valid = 1;
3867 wpa_dbg(wpa_s, MSG_DEBUG,
3868 "P2PS: Saving PIN for " MACSTR, MAC2STR(dev));
3871 wpa_msg_global(wpa_s, MSG_INFO,
3872 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3873 " status=%d conncap=%x"
3874 " adv_id=%x adv_mac=" MACSTR
3875 " session=%x mac=" MACSTR
3876 " dev_passwd_id=%d go=%s%s",
3877 MAC2STR(dev), status, conncap,
3878 adv_id, MAC2STR(adv_mac),
3879 ses_id, MAC2STR(ses_mac),
3880 passwd_id, go_ifname, feat_cap_str);
3884 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3885 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3887 if (persistent_go && !persistent_go->num_p2p_clients) {
3888 /* remove empty persistent GO */
3889 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
3892 if (conncap == P2PS_SETUP_CLIENT) {
3893 wpa_msg_global(wpa_s, MSG_INFO,
3894 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3895 " status=%d conncap=%x"
3896 " adv_id=%x adv_mac=" MACSTR
3897 " session=%x mac=" MACSTR
3898 " dev_passwd_id=%d join=" MACSTR "%s",
3899 MAC2STR(dev), status, conncap,
3900 adv_id, MAC2STR(adv_mac),
3901 ses_id, MAC2STR(ses_mac),
3902 passwd_id, MAC2STR(grp_mac), feat_cap_str);
3904 wpa_msg_global(wpa_s, MSG_INFO,
3905 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3906 " status=%d conncap=%x"
3907 " adv_id=%x adv_mac=" MACSTR
3908 " session=%x mac=" MACSTR
3909 " dev_passwd_id=%d%s",
3910 MAC2STR(dev), status, conncap,
3911 adv_id, MAC2STR(adv_mac),
3912 ses_id, MAC2STR(ses_mac),
3913 passwd_id, feat_cap_str);
3918 static int _wpas_p2p_in_progress(void *ctx)
3920 struct wpa_supplicant *wpa_s = ctx;
3921 return wpas_p2p_in_progress(wpa_s);
3925 static int wpas_prov_disc_resp_cb(void *ctx)
3927 struct wpa_supplicant *wpa_s = ctx;
3928 struct wpa_ssid *persistent_go;
3930 if (!wpa_s->global->pending_p2ps_group)
3933 wpa_s->global->pending_p2ps_group = 0;
3935 if (wpas_p2p_get_go_group(wpa_s))
3937 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3939 if (persistent_go) {
3940 wpas_p2p_group_add_persistent(
3941 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
3942 persistent_go->mode == WPAS_MODE_P2P_GO ?
3943 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3945 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3953 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3954 * @global: Pointer to global data from wpa_supplicant_init()
3955 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3956 * Returns: 0 on success, -1 on failure
3958 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3960 struct p2p_config p2p;
3963 if (wpa_s->conf->p2p_disabled)
3966 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3972 os_memset(&p2p, 0, sizeof(p2p));
3974 p2p.debug_print = wpas_p2p_debug_print;
3975 p2p.p2p_scan = wpas_p2p_scan;
3976 p2p.send_action = wpas_send_action;
3977 p2p.send_action_done = wpas_send_action_done;
3978 p2p.go_neg_completed = wpas_go_neg_completed;
3979 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3980 p2p.dev_found = wpas_dev_found;
3981 p2p.dev_lost = wpas_dev_lost;
3982 p2p.find_stopped = wpas_find_stopped;
3983 p2p.start_listen = wpas_start_listen;
3984 p2p.stop_listen = wpas_stop_listen;
3985 p2p.send_probe_resp = wpas_send_probe_resp;
3986 p2p.sd_request = wpas_sd_request;
3987 p2p.sd_response = wpas_sd_response;
3988 p2p.prov_disc_req = wpas_prov_disc_req;
3989 p2p.prov_disc_resp = wpas_prov_disc_resp;
3990 p2p.prov_disc_fail = wpas_prov_disc_fail;
3991 p2p.invitation_process = wpas_invitation_process;
3992 p2p.invitation_received = wpas_invitation_received;
3993 p2p.invitation_result = wpas_invitation_result;
3994 p2p.get_noa = wpas_get_noa;
3995 p2p.go_connected = wpas_go_connected;
3996 p2p.presence_resp = wpas_presence_resp;
3997 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
3998 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
3999 p2p.get_persistent_group = wpas_get_persistent_group;
4000 p2p.get_go_info = wpas_get_go_info;
4001 p2p.remove_stale_groups = wpas_remove_stale_groups;
4002 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4003 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4004 p2p.p2ps_group_capability = p2ps_group_capability;
4006 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4007 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4008 p2p.dev_name = wpa_s->conf->device_name;
4009 p2p.manufacturer = wpa_s->conf->manufacturer;
4010 p2p.model_name = wpa_s->conf->model_name;
4011 p2p.model_number = wpa_s->conf->model_number;
4012 p2p.serial_number = wpa_s->conf->serial_number;
4014 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4015 p2p.config_methods = wpa_s->wps->config_methods;
4018 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4019 wpa_printf(MSG_ERROR,
4020 "P2P: Failed to configure supported channel list");
4024 if (wpa_s->conf->p2p_listen_reg_class &&
4025 wpa_s->conf->p2p_listen_channel) {
4026 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4027 p2p.channel = wpa_s->conf->p2p_listen_channel;
4028 p2p.channel_forced = 1;
4031 * Pick one of the social channels randomly as the listen
4034 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4035 &p2p.channel) != 0) {
4036 wpa_printf(MSG_INFO,
4037 "P2P: No social channels supported by the driver - do not enable P2P");
4040 p2p.channel_forced = 0;
4042 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4043 p2p.reg_class, p2p.channel);
4045 if (wpa_s->conf->p2p_oper_reg_class &&
4046 wpa_s->conf->p2p_oper_channel) {
4047 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4048 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4049 p2p.cfg_op_channel = 1;
4050 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4051 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4055 * Use random operation channel from 2.4 GHz band social
4056 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4057 * other preference is indicated.
4059 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4060 &p2p.op_channel) != 0) {
4061 wpa_printf(MSG_ERROR,
4062 "P2P: Failed to select random social channel as operation channel");
4065 p2p.cfg_op_channel = 0;
4066 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4067 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4070 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4071 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4072 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4075 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4076 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4077 p2p.country[2] = 0x04;
4079 os_memcpy(p2p.country, "XX\x04", 3);
4081 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4084 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4085 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4086 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4088 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4089 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4091 p2p.max_peers = 100;
4093 if (wpa_s->conf->p2p_ssid_postfix) {
4094 p2p.ssid_postfix_len =
4095 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4096 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4097 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4098 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4099 p2p.ssid_postfix_len);
4102 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4104 p2p.max_listen = wpa_s->max_remain_on_chan;
4106 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4107 wpa_s->conf->p2p_passphrase_len <= 63)
4108 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4110 p2p.passphrase_len = 8;
4112 global->p2p = p2p_init(&p2p);
4113 if (global->p2p == NULL)
4115 global->p2p_init_wpa_s = wpa_s;
4117 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4118 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4120 p2p_add_wps_vendor_extension(
4121 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4124 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4131 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4132 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4134 * This function deinitialize per-interface P2P data.
4136 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4138 if (wpa_s->driver && wpa_s->drv_priv)
4139 wpa_drv_probe_req_report(wpa_s, 0);
4141 if (wpa_s->go_params) {
4142 /* Clear any stored provisioning info */
4143 p2p_clear_provisioning_info(
4145 wpa_s->go_params->peer_device_addr);
4148 os_free(wpa_s->go_params);
4149 wpa_s->go_params = NULL;
4150 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4151 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4152 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4153 wpa_s->p2p_long_listen = 0;
4154 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4155 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4156 wpas_p2p_remove_pending_group_interface(wpa_s);
4157 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4158 wpas_p2p_listen_work_done(wpa_s);
4159 if (wpa_s->p2p_send_action_work) {
4160 os_free(wpa_s->p2p_send_action_work->ctx);
4161 radio_work_done(wpa_s->p2p_send_action_work);
4162 wpa_s->p2p_send_action_work = NULL;
4164 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4166 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4167 wpa_s->p2p_oob_dev_pw = NULL;
4169 os_free(wpa_s->p2p_group_common_freqs);
4170 wpa_s->p2p_group_common_freqs = NULL;
4171 wpa_s->p2p_group_common_freqs_num = 0;
4173 /* TODO: remove group interface from the driver if this wpa_s instance
4174 * is on top of a P2P group interface */
4179 * wpas_p2p_deinit_global - Deinitialize global P2P module
4180 * @global: Pointer to global data from wpa_supplicant_init()
4182 * This function deinitializes the global (per device) P2P module.
4184 static void wpas_p2p_deinit_global(struct wpa_global *global)
4186 struct wpa_supplicant *wpa_s, *tmp;
4188 wpa_s = global->ifaces;
4190 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4192 /* Remove remaining P2P group interfaces */
4193 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4194 wpa_s = wpa_s->next;
4196 tmp = global->ifaces;
4199 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4204 /* Disconnect from the P2P group and deinit the interface */
4205 wpas_p2p_disconnect(tmp);
4209 * Deinit GO data on any possibly remaining interface (if main
4210 * interface is used as GO).
4212 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4213 if (wpa_s->ap_iface)
4214 wpas_p2p_group_deinit(wpa_s);
4217 p2p_deinit(global->p2p);
4219 global->p2p_init_wpa_s = NULL;
4223 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4225 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4226 wpa_s->conf->p2p_no_group_iface)
4227 return 0; /* separate interface disabled per configuration */
4228 if (wpa_s->drv_flags &
4229 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4230 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4231 return 1; /* P2P group requires a new interface in every case
4233 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4234 return 0; /* driver does not support concurrent operations */
4235 if (wpa_s->global->ifaces->next)
4236 return 1; /* more that one interface already in use */
4237 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4238 return 1; /* this interface is already in use */
4243 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4244 const u8 *peer_addr,
4245 enum p2p_wps_method wps_method,
4246 int go_intent, const u8 *own_interface_addr,
4247 unsigned int force_freq, int persistent_group,
4248 struct wpa_ssid *ssid, unsigned int pref_freq)
4250 if (persistent_group && wpa_s->conf->persistent_reconnect)
4251 persistent_group = 2;
4254 * Increase GO config timeout if HT40 is used since it takes some time
4255 * to scan channels for coex purposes before the BSS can be started.
4257 p2p_set_config_timeout(wpa_s->global->p2p,
4258 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4260 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4261 go_intent, own_interface_addr, force_freq,
4262 persistent_group, ssid ? ssid->ssid : NULL,
4263 ssid ? ssid->ssid_len : 0,
4264 wpa_s->p2p_pd_before_go_neg, pref_freq,
4265 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4270 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4271 const u8 *peer_addr,
4272 enum p2p_wps_method wps_method,
4273 int go_intent, const u8 *own_interface_addr,
4274 unsigned int force_freq, int persistent_group,
4275 struct wpa_ssid *ssid, unsigned int pref_freq)
4277 if (persistent_group && wpa_s->conf->persistent_reconnect)
4278 persistent_group = 2;
4280 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4281 go_intent, own_interface_addr, force_freq,
4282 persistent_group, ssid ? ssid->ssid : NULL,
4283 ssid ? ssid->ssid_len : 0, pref_freq,
4284 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4289 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4291 wpa_s->p2p_join_scan_count++;
4292 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4293 wpa_s->p2p_join_scan_count);
4294 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4295 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4296 " for join operationg - stop join attempt",
4297 MAC2STR(wpa_s->pending_join_iface_addr));
4298 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4299 if (wpa_s->p2p_auto_pd) {
4300 wpa_s->p2p_auto_pd = 0;
4301 wpa_msg_global(wpa_s, MSG_INFO,
4302 P2P_EVENT_PROV_DISC_FAILURE
4303 " p2p_dev_addr=" MACSTR " status=N/A",
4304 MAC2STR(wpa_s->pending_join_dev_addr));
4307 wpa_msg_global(wpa_s->parent, MSG_INFO,
4308 P2P_EVENT_GROUP_FORMATION_FAILURE);
4313 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4316 unsigned int num, i;
4317 struct wpa_used_freq_data *freqs;
4319 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4320 /* Multiple channels are supported and not all are in use */
4324 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4325 sizeof(struct wpa_used_freq_data));
4329 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4330 wpa_s->num_multichan_concurrent);
4332 for (i = 0; i < num; i++) {
4333 if (freqs[i].freq == freq) {
4334 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4341 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4350 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4351 const u8 *peer_dev_addr)
4353 struct wpa_bss *bss;
4356 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4359 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4360 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4365 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4367 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4368 "%ld.%06ld (%supdated in last scan)",
4369 bss->last_update.sec, bss->last_update.usec,
4370 updated ? "": "not ");
4376 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4377 struct wpa_scan_results *scan_res)
4379 struct wpa_bss *bss = NULL;
4381 u8 iface_addr[ETH_ALEN];
4383 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4385 if (wpa_s->global->p2p_disabled)
4388 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4389 scan_res ? (int) scan_res->num : -1,
4390 wpa_s->p2p_auto_join ? "auto_" : "");
4393 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4395 if (wpa_s->p2p_auto_pd) {
4396 int join = wpas_p2p_peer_go(wpa_s,
4397 wpa_s->pending_join_dev_addr);
4399 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4400 wpa_s->auto_pd_scan_retry++;
4401 bss = wpa_bss_get_bssid_latest(
4402 wpa_s, wpa_s->pending_join_dev_addr);
4405 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4406 "the peer " MACSTR " at %d MHz",
4407 wpa_s->auto_pd_scan_retry,
4409 pending_join_dev_addr),
4411 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4419 wpa_s->p2p_auto_pd = 0;
4420 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4421 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4422 MAC2STR(wpa_s->pending_join_dev_addr), join);
4423 if (p2p_prov_disc_req(wpa_s->global->p2p,
4424 wpa_s->pending_join_dev_addr, NULL,
4425 wpa_s->pending_pd_config_methods, join,
4426 0, wpa_s->user_initiated_pd) < 0) {
4427 wpa_s->p2p_auto_pd = 0;
4428 wpa_msg_global(wpa_s, MSG_INFO,
4429 P2P_EVENT_PROV_DISC_FAILURE
4430 " p2p_dev_addr=" MACSTR " status=N/A",
4431 MAC2STR(wpa_s->pending_join_dev_addr));
4436 if (wpa_s->p2p_auto_join) {
4437 int join = wpas_p2p_peer_go(wpa_s,
4438 wpa_s->pending_join_dev_addr);
4440 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4441 "running a GO -> use GO Negotiation");
4442 wpa_msg_global(wpa_s->parent, MSG_INFO,
4443 P2P_EVENT_FALLBACK_TO_GO_NEG
4444 "reason=peer-not-running-GO");
4445 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4446 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4447 wpa_s->p2p_persistent_group, 0, 0, 0,
4448 wpa_s->p2p_go_intent,
4449 wpa_s->p2p_connect_freq,
4450 wpa_s->p2p_persistent_id,
4451 wpa_s->p2p_pd_before_go_neg,
4457 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4458 "try to join the group", join ? "" :
4461 wpa_msg_global(wpa_s->parent, MSG_INFO,
4462 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4463 wpa_s->p2p_fallback_to_go_neg = 1;
4467 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4468 wpa_s->pending_join_iface_addr);
4470 p2p_get_interface_addr(wpa_s->global->p2p,
4471 wpa_s->pending_join_dev_addr,
4473 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4474 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4475 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4476 "address for join from " MACSTR " to " MACSTR
4477 " based on newly discovered P2P peer entry",
4478 MAC2STR(wpa_s->pending_join_iface_addr),
4479 MAC2STR(iface_addr));
4480 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4483 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4484 wpa_s->pending_join_iface_addr);
4487 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4488 "from P2P peer table: %d MHz", freq);
4490 if (wpa_s->p2p_join_ssid_len) {
4491 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4492 MACSTR " and SSID %s",
4493 MAC2STR(wpa_s->pending_join_iface_addr),
4494 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4495 wpa_s->p2p_join_ssid_len));
4496 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4497 wpa_s->p2p_join_ssid,
4498 wpa_s->p2p_join_ssid_len);
4501 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4502 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4503 bss = wpa_bss_get_bssid_latest(wpa_s,
4504 wpa_s->pending_join_iface_addr);
4507 u8 dev_addr[ETH_ALEN];
4510 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4511 "from BSS table: %d MHz (SSID %s)", freq,
4512 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4513 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4515 os_memcmp(wpa_s->pending_join_dev_addr,
4516 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4517 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4519 wpa_printf(MSG_DEBUG,
4520 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4522 MAC2STR(wpa_s->pending_join_dev_addr));
4523 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4530 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4531 wpa_msg_global(wpa_s->parent, MSG_INFO,
4532 P2P_EVENT_GROUP_FORMATION_FAILURE
4533 "reason=FREQ_CONFLICT");
4537 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4538 "prior to joining an existing group (GO " MACSTR
4540 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4541 wpa_s->pending_pd_before_join = 1;
4543 switch (wpa_s->pending_join_wps_method) {
4544 case WPS_PIN_DISPLAY:
4545 method = WPS_CONFIG_KEYPAD;
4547 case WPS_PIN_KEYPAD:
4548 method = WPS_CONFIG_DISPLAY;
4551 method = WPS_CONFIG_PUSHBUTTON;
4558 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4559 wpa_s->pending_join_dev_addr) ==
4562 * We have already performed provision discovery for
4563 * joining the group. Proceed directly to join
4564 * operation without duplicated provision discovery. */
4565 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4566 "with " MACSTR " already done - proceed to "
4568 MAC2STR(wpa_s->pending_join_dev_addr));
4569 wpa_s->pending_pd_before_join = 0;
4573 if (p2p_prov_disc_req(wpa_s->global->p2p,
4574 wpa_s->pending_join_dev_addr,
4576 freq, wpa_s->user_initiated_pd) < 0) {
4577 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4578 "Discovery Request before joining an "
4580 wpa_s->pending_pd_before_join = 0;
4586 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4587 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4588 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4589 wpas_p2p_check_join_scan_limit(wpa_s);
4593 /* Start join operation immediately */
4594 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4598 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4599 const u8 *ssid, size_t ssid_len)
4602 struct wpa_driver_scan_params params;
4603 struct wpabuf *wps_ie, *ies;
4605 int freqs[2] = { 0, 0 };
4607 os_memset(¶ms, 0, sizeof(params));
4609 /* P2P Wildcard SSID */
4610 params.num_ssids = 1;
4611 if (ssid && ssid_len) {
4612 params.ssids[0].ssid = ssid;
4613 params.ssids[0].ssid_len = ssid_len;
4614 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4615 wpa_s->p2p_join_ssid_len = ssid_len;
4617 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4618 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4619 wpa_s->p2p_join_ssid_len = 0;
4622 wpa_s->wps->dev.p2p = 1;
4623 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4624 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4626 if (wps_ie == NULL) {
4627 wpas_p2p_scan_res_join(wpa_s, NULL);
4631 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4632 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4634 wpabuf_free(wps_ie);
4635 wpas_p2p_scan_res_join(wpa_s, NULL);
4638 wpabuf_put_buf(ies, wps_ie);
4639 wpabuf_free(wps_ie);
4641 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4643 params.p2p_probe = 1;
4644 params.extra_ies = wpabuf_head(ies);
4645 params.extra_ies_len = wpabuf_len(ies);
4650 * If freq is not provided, check the operating freq of the GO
4651 * and use a single channel scan on if possible.
4653 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4654 wpa_s->pending_join_iface_addr);
4660 params.freqs = freqs;
4664 * Run a scan to update BSS table and start Provision Discovery once
4665 * the new scan results become available.
4667 ret = wpa_drv_scan(wpa_s, ¶ms);
4669 os_get_reltime(&wpa_s->scan_trigger_time);
4670 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4671 wpa_s->own_scan_requested = 1;
4677 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4679 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4680 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4681 wpas_p2p_check_join_scan_limit(wpa_s);
4686 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4688 struct wpa_supplicant *wpa_s = eloop_ctx;
4689 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4693 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4694 const u8 *dev_addr, enum p2p_wps_method wps_method,
4695 int auto_join, int op_freq,
4696 const u8 *ssid, size_t ssid_len)
4698 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4699 MACSTR " dev " MACSTR " op_freq=%d)%s",
4700 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4701 auto_join ? " (auto_join)" : "");
4702 if (ssid && ssid_len) {
4703 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4704 wpa_ssid_txt(ssid, ssid_len));
4707 wpa_s->p2p_auto_pd = 0;
4708 wpa_s->p2p_auto_join = !!auto_join;
4709 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4710 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4711 wpa_s->pending_join_wps_method = wps_method;
4713 /* Make sure we are not running find during connection establishment */
4714 wpas_p2p_stop_find(wpa_s);
4716 wpa_s->p2p_join_scan_count = 0;
4717 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4722 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4723 const u8 *ssid, size_t ssid_len)
4725 struct wpa_supplicant *group;
4726 struct p2p_go_neg_results res;
4727 struct wpa_bss *bss;
4729 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4732 if (group != wpa_s) {
4733 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4734 sizeof(group->p2p_pin));
4735 group->p2p_wps_method = wpa_s->p2p_wps_method;
4738 * Need to mark the current interface for p2p_group_formation
4739 * when a separate group interface is not used. This is needed
4740 * to allow p2p_cancel stop a pending p2p_connect-join.
4741 * wpas_p2p_init_group_interface() addresses this for the case
4742 * where a separate group interface is used.
4744 wpa_s->global->p2p_group_formation = wpa_s;
4747 group->p2p_in_provisioning = 1;
4748 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4750 os_memset(&res, 0, sizeof(res));
4751 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4752 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4754 res.wps_method = wpa_s->pending_join_wps_method;
4755 if (freq && ssid && ssid_len) {
4757 res.ssid_len = ssid_len;
4758 os_memcpy(res.ssid, ssid, ssid_len);
4760 bss = wpa_bss_get_bssid_latest(wpa_s,
4761 wpa_s->pending_join_iface_addr);
4763 res.freq = bss->freq;
4764 res.ssid_len = bss->ssid_len;
4765 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4766 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4768 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4772 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4773 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4775 wpa_drv_cancel_remain_on_channel(wpa_s);
4776 wpa_s->off_channel_freq = 0;
4777 wpa_s->roc_waiting_drv_freq = 0;
4779 wpas_start_wps_enrollee(group, &res);
4782 * Allow a longer timeout for join-a-running-group than normal 15
4783 * second group formation timeout since the GO may not have authorized
4784 * our connection yet.
4786 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4787 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4794 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4795 int *force_freq, int *pref_freq, int go,
4796 unsigned int *pref_freq_list,
4797 unsigned int *num_pref_freq)
4799 struct wpa_used_freq_data *freqs;
4800 int res, best_freq, num_unused;
4801 unsigned int freq_in_use = 0, num, i, max_pref_freq;
4803 max_pref_freq = *num_pref_freq;
4806 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4807 sizeof(struct wpa_used_freq_data));
4811 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4812 wpa_s->num_multichan_concurrent);
4815 * It is possible that the total number of used frequencies is bigger
4816 * than the number of frequencies used for P2P, so get the system wide
4817 * number of unused frequencies.
4819 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4821 wpa_printf(MSG_DEBUG,
4822 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4823 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4828 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4830 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4832 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4833 ieee80211_is_dfs(freq)) {
4835 * If freq is a DFS channel and DFS is offloaded
4836 * to the driver, allow P2P GO to use it.
4838 wpa_printf(MSG_DEBUG,
4839 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4842 wpa_printf(MSG_DEBUG,
4843 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4850 for (i = 0; i < num; i++) {
4851 if (freqs[i].freq == freq)
4855 if (num_unused <= 0 && !freq_in_use) {
4856 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4861 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4862 "requested channel (%u MHz)", freq);
4867 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4869 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
4870 enum wpa_driver_if_type iface_type;
4873 iface_type = WPA_IF_P2P_GO;
4875 iface_type = WPA_IF_P2P_CLIENT;
4877 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
4880 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
4883 if (!res && max_pref_freq > 0) {
4884 *num_pref_freq = max_pref_freq;
4886 while (wpas_p2p_disallowed_freq(wpa_s->global,
4887 pref_freq_list[i]) &&
4888 i < *num_pref_freq) {
4889 wpa_printf(MSG_DEBUG,
4890 "P2P: preferred_freq_list[%d]=%d is disallowed",
4891 i, pref_freq_list[i]);
4894 if (i != *num_pref_freq) {
4895 best_freq = pref_freq_list[i];
4896 wpa_printf(MSG_DEBUG,
4897 "P2P: Using preferred_freq_list[%d]=%d",
4900 wpa_printf(MSG_DEBUG,
4901 "P2P: All driver preferred frequencies are disallowed for P2P use");
4905 wpa_printf(MSG_DEBUG,
4906 "P2P: No preferred frequency list available");
4910 /* We have a candidate frequency to use */
4911 if (best_freq > 0) {
4912 if (*pref_freq == 0 && num_unused > 0) {
4913 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4915 *pref_freq = best_freq;
4917 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4919 *force_freq = best_freq;
4921 } else if (num_unused > 0) {
4922 wpa_printf(MSG_DEBUG,
4923 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4926 wpa_printf(MSG_DEBUG,
4927 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4941 * wpas_p2p_connect - Request P2P Group Formation to be started
4942 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4943 * @peer_addr: Address of the peer P2P Device
4944 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4945 * @persistent_group: Whether to create a persistent group
4946 * @auto_join: Whether to select join vs. GO Negotiation automatically
4947 * @join: Whether to join an existing group (as a client) instead of starting
4948 * Group Owner negotiation; @peer_addr is BSSID in that case
4949 * @auth: Whether to only authorize the connection instead of doing that and
4950 * initiating Group Owner negotiation
4951 * @go_intent: GO Intent or -1 to use default
4952 * @freq: Frequency for the group or 0 for auto-selection
4953 * @persistent_id: Persistent group credentials to use for forcing GO
4954 * parameters or -1 to generate new values (SSID/passphrase)
4955 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4956 * interoperability workaround when initiating group formation
4957 * @ht40: Start GO with 40 MHz channel width
4958 * @vht: Start GO with VHT support
4959 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4960 * failure, -2 on failure due to channel not currently available,
4961 * -3 if forced channel is not supported
4963 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4964 const char *pin, enum p2p_wps_method wps_method,
4965 int persistent_group, int auto_join, int join, int auth,
4966 int go_intent, int freq, int persistent_id, int pd,
4969 int force_freq = 0, pref_freq = 0;
4971 enum wpa_driver_if_type iftype;
4973 struct wpa_ssid *ssid = NULL;
4974 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
4976 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4979 if (persistent_id >= 0) {
4980 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4981 if (ssid == NULL || ssid->disabled != 2 ||
4982 ssid->mode != WPAS_MODE_P2P_GO)
4986 os_free(wpa_s->global->add_psk);
4987 wpa_s->global->add_psk = NULL;
4989 wpa_s->global->p2p_fail_on_wps_complete = 0;
4990 wpa_s->global->pending_p2ps_group = 0;
4993 go_intent = wpa_s->conf->p2p_go_intent;
4996 wpa_s->p2p_long_listen = 0;
4998 wpa_s->p2p_wps_method = wps_method;
4999 wpa_s->p2p_persistent_group = !!persistent_group;
5000 wpa_s->p2p_persistent_id = persistent_id;
5001 wpa_s->p2p_go_intent = go_intent;
5002 wpa_s->p2p_connect_freq = freq;
5003 wpa_s->p2p_fallback_to_go_neg = 0;
5004 wpa_s->p2p_pd_before_go_neg = !!pd;
5005 wpa_s->p2p_go_ht40 = !!ht40;
5006 wpa_s->p2p_go_vht = !!vht;
5009 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5010 else if (wps_method == WPS_PIN_DISPLAY) {
5011 ret = wps_generate_pin();
5012 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5014 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5015 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5016 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5019 wpa_s->p2p_pin[0] = '\0';
5021 if (join || auto_join) {
5022 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5024 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5025 "connect a running group from " MACSTR,
5026 MAC2STR(peer_addr));
5027 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5030 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5031 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5033 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5034 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5038 os_get_reltime(&wpa_s->p2p_auto_started);
5039 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5041 wpa_s->p2p_auto_started.sec,
5042 wpa_s->p2p_auto_started.usec);
5044 wpa_s->user_initiated_pd = 1;
5045 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5046 auto_join, freq, NULL, 0) < 0)
5051 size = P2P_MAX_PREF_CHANNELS;
5052 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5053 go_intent == 15, pref_freq_list, &size);
5056 wpas_p2p_set_own_freq_preference(wpa_s,
5057 force_freq ? force_freq : pref_freq);
5059 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5061 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5063 if (wpa_s->create_p2p_iface) {
5064 /* Prepare to add a new interface for the group */
5065 iftype = WPA_IF_P2P_GROUP;
5066 if (go_intent == 15)
5067 iftype = WPA_IF_P2P_GO;
5068 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5069 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5070 "interface for the group");
5074 if_addr = wpa_s->pending_interface_addr;
5076 if_addr = wpa_s->own_addr;
5079 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5081 force_freq, persistent_group, ssid,
5087 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5088 go_intent, if_addr, force_freq,
5089 persistent_group, ssid, pref_freq) < 0) {
5090 if (wpa_s->create_p2p_iface)
5091 wpas_p2p_remove_pending_group_interface(wpa_s);
5099 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5100 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5101 * @freq: Frequency of the channel in MHz
5102 * @duration: Duration of the stay on the channel in milliseconds
5104 * This callback is called when the driver indicates that it has started the
5105 * requested remain-on-channel duration.
5107 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5108 unsigned int freq, unsigned int duration)
5110 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5112 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)",
5113 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5114 wpa_s->roc_waiting_drv_freq, freq, duration);
5115 if (wpa_s->off_channel_freq &&
5116 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5117 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5118 wpa_s->pending_listen_duration);
5119 wpa_s->pending_listen_freq = 0;
5121 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5122 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5128 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5130 /* Limit maximum Listen state time based on driver limitation. */
5131 if (timeout > wpa_s->max_remain_on_chan)
5132 timeout = wpa_s->max_remain_on_chan;
5134 return p2p_listen(wpa_s->global->p2p, timeout);
5139 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5140 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5141 * @freq: Frequency of the channel in MHz
5143 * This callback is called when the driver indicates that a remain-on-channel
5144 * operation has been completed, i.e., the duration on the requested channel
5147 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5150 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5151 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5152 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5153 wpas_p2p_listen_work_done(wpa_s);
5154 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5156 if (wpa_s->p2p_long_listen > 0)
5157 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5158 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5159 return; /* P2P module started a new operation */
5160 if (offchannel_pending_action_tx(wpa_s))
5162 if (wpa_s->p2p_long_listen > 0) {
5163 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5164 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5167 * When listen duration is over, stop listen & update p2p_state
5170 p2p_stop_listen(wpa_s->global->p2p);
5176 * wpas_p2p_group_remove - Remove a P2P group
5177 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5178 * @ifname: Network interface name of the group interface or "*" to remove all
5180 * Returns: 0 on success, -1 on failure
5182 * This function is used to remove a P2P group. This can be used to disconnect
5183 * from a group in which the local end is a P2P Client or to end a P2P Group in
5184 * case the local end is the Group Owner. If a virtual network interface was
5185 * created for this group, that interface will be removed. Otherwise, only the
5186 * configured P2P group network will be removed from the interface.
5188 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5190 struct wpa_global *global = wpa_s->global;
5191 struct wpa_supplicant *calling_wpa_s = wpa_s;
5193 if (os_strcmp(ifname, "*") == 0) {
5194 struct wpa_supplicant *prev;
5195 wpa_s = global->ifaces;
5198 wpa_s = wpa_s->next;
5199 if (prev->p2p_group_interface !=
5200 NOT_P2P_GROUP_INTERFACE ||
5201 (prev->current_ssid &&
5202 prev->current_ssid->p2p_group))
5203 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5208 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5209 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5213 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5217 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5222 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5224 if (wpa_s->best_24_freq > 0 &&
5225 p2p_supported_freq_go(wpa_s->global->p2p,
5226 wpa_s->best_24_freq)) {
5227 freq = wpa_s->best_24_freq;
5228 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5229 "channel: %d MHz", freq);
5231 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5233 freq = 2412 + (r % 3) * 25;
5234 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5235 "channel: %d MHz", freq);
5240 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5242 if (wpa_s->best_5_freq > 0 &&
5243 p2p_supported_freq_go(wpa_s->global->p2p,
5244 wpa_s->best_5_freq)) {
5245 freq = wpa_s->best_5_freq;
5246 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5247 "channel: %d MHz", freq);
5249 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5251 freq = 5180 + (r % 4) * 20;
5252 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5253 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5254 "5 GHz channel for P2P group");
5257 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5258 "channel: %d MHz", freq);
5262 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5263 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5264 ieee80211_is_dfs(freq)) {
5266 * If freq is a DFS channel and DFS is offloaded to the
5267 * driver, allow P2P GO to use it.
5269 wpa_printf(MSG_DEBUG, "P2P: "
5270 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5274 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5275 "(%u MHz) is not supported for P2P uses",
5284 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5285 struct p2p_go_neg_results *params,
5286 const struct p2p_channels *channels)
5290 /* first try some random selection of the social channels */
5291 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5294 for (i = 0; i < 3; i++) {
5295 params->freq = 2412 + ((r + i) % 3) * 25;
5296 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5297 freq_included(channels, params->freq) &&
5298 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5302 /* try all channels in reg. class 81 */
5303 for (i = 0; i < 11; i++) {
5304 params->freq = 2412 + i * 5;
5305 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5306 freq_included(channels, params->freq) &&
5307 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5311 /* try all channels in operating class 115 */
5312 for (i = 0; i < 4; i++) {
5313 params->freq = 5180 + i * 20;
5314 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5315 freq_included(channels, params->freq) &&
5316 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5320 /* try all channels in operating class 124 */
5321 for (i = 0; i < 4; i++) {
5322 params->freq = 5745 + i * 20;
5323 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5324 freq_included(channels, params->freq) &&
5325 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5329 /* try social channel class 180 channel 2 */
5330 params->freq = 58320 + 1 * 2160;
5331 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5332 freq_included(channels, params->freq) &&
5333 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5336 /* try all channels in reg. class 180 */
5337 for (i = 0; i < 4; i++) {
5338 params->freq = 58320 + i * 2160;
5339 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5340 freq_included(channels, params->freq) &&
5341 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5345 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5348 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5354 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5355 struct p2p_go_neg_results *params,
5356 int freq, int ht40, int vht,
5357 const struct p2p_channels *channels)
5359 struct wpa_used_freq_data *freqs;
5360 unsigned int pref_freq, cand_freq;
5361 unsigned int num, i;
5363 os_memset(params, 0, sizeof(*params));
5364 params->role_go = 1;
5365 params->ht40 = ht40;
5368 if (!freq_included(channels, freq)) {
5369 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5373 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5374 "frequency %d MHz", freq);
5375 params->freq = freq;
5376 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5377 wpa_s->conf->p2p_oper_channel >= 1 &&
5378 wpa_s->conf->p2p_oper_channel <= 11 &&
5379 freq_included(channels,
5380 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5381 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5382 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5383 "frequency %d MHz", params->freq);
5384 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5385 wpa_s->conf->p2p_oper_reg_class == 116 ||
5386 wpa_s->conf->p2p_oper_reg_class == 117 ||
5387 wpa_s->conf->p2p_oper_reg_class == 124 ||
5388 wpa_s->conf->p2p_oper_reg_class == 125 ||
5389 wpa_s->conf->p2p_oper_reg_class == 126 ||
5390 wpa_s->conf->p2p_oper_reg_class == 127) &&
5391 freq_included(channels,
5392 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
5393 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5394 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5395 "frequency %d MHz", params->freq);
5396 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5397 wpa_s->best_overall_freq > 0 &&
5398 p2p_supported_freq_go(wpa_s->global->p2p,
5399 wpa_s->best_overall_freq) &&
5400 freq_included(channels, wpa_s->best_overall_freq)) {
5401 params->freq = wpa_s->best_overall_freq;
5402 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5403 "channel %d MHz", params->freq);
5404 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5405 wpa_s->best_24_freq > 0 &&
5406 p2p_supported_freq_go(wpa_s->global->p2p,
5407 wpa_s->best_24_freq) &&
5408 freq_included(channels, wpa_s->best_24_freq)) {
5409 params->freq = wpa_s->best_24_freq;
5410 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5411 "channel %d MHz", params->freq);
5412 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5413 wpa_s->best_5_freq > 0 &&
5414 p2p_supported_freq_go(wpa_s->global->p2p,
5415 wpa_s->best_5_freq) &&
5416 freq_included(channels, wpa_s->best_5_freq)) {
5417 params->freq = wpa_s->best_5_freq;
5418 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5419 "channel %d MHz", params->freq);
5420 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5422 params->freq = pref_freq;
5423 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5424 "channels", params->freq);
5426 /* no preference, select some channel */
5427 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
5431 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5432 sizeof(struct wpa_used_freq_data));
5436 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5437 wpa_s->num_multichan_concurrent);
5439 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5441 /* First try the best used frequency if possible */
5442 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5443 params->freq = cand_freq;
5445 /* Try any of the used frequencies */
5446 for (i = 0; i < num; i++) {
5447 if (freq_included(channels, freqs[i].freq)) {
5448 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5450 params->freq = freqs[i].freq;
5456 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5457 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
5461 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5465 for (i = 0; i < num; i++) {
5466 if (freqs[i].freq == freq)
5471 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5473 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5477 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5487 static struct wpa_supplicant *
5488 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5491 struct wpa_supplicant *group_wpa_s;
5493 if (!wpas_p2p_create_iface(wpa_s)) {
5494 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5496 wpa_s->p2p_first_connection_timeout = 0;
5500 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5501 WPA_IF_P2P_CLIENT) < 0) {
5502 wpa_msg_global(wpa_s, MSG_ERROR,
5503 "P2P: Failed to add group interface");
5506 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5507 if (group_wpa_s == NULL) {
5508 wpa_msg_global(wpa_s, MSG_ERROR,
5509 "P2P: Failed to initialize group interface");
5510 wpas_p2p_remove_pending_group_interface(wpa_s);
5514 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5515 group_wpa_s->ifname);
5516 group_wpa_s->p2p_first_connection_timeout = 0;
5522 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5523 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5524 * @persistent_group: Whether to create a persistent group
5525 * @freq: Frequency for the group or 0 to indicate no hardcoding
5526 * @ht40: Start GO with 40 MHz channel width
5527 * @vht: Start GO with VHT support
5528 * Returns: 0 on success, -1 on failure
5530 * This function creates a new P2P group with the local end as the Group Owner,
5531 * i.e., without using Group Owner Negotiation.
5533 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5534 int freq, int ht40, int vht)
5536 struct p2p_go_neg_results params;
5538 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5541 os_free(wpa_s->global->add_psk);
5542 wpa_s->global->add_psk = NULL;
5544 /* Make sure we are not running find during connection establishment */
5545 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5546 wpas_p2p_stop_find_oper(wpa_s);
5548 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5552 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5555 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5556 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5557 ieee80211_is_dfs(params.freq)) {
5559 * If freq is a DFS channel and DFS is offloaded to the
5560 * driver, allow P2P GO to use it.
5562 wpa_printf(MSG_DEBUG,
5563 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5564 __func__, params.freq);
5566 wpa_printf(MSG_DEBUG,
5567 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5572 p2p_go_params(wpa_s->global->p2p, ¶ms);
5573 params.persistent_group = persistent_group;
5575 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5578 wpas_start_wps_go(wpa_s, ¶ms, 0);
5584 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5585 struct wpa_ssid *params, int addr_allocated,
5588 struct wpa_ssid *ssid;
5590 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5593 wpa_s->p2p_last_4way_hs_fail = NULL;
5595 wpa_supplicant_ap_deinit(wpa_s);
5597 ssid = wpa_config_add_network(wpa_s->conf);
5600 wpa_config_set_network_defaults(ssid);
5601 ssid->temporary = 1;
5602 ssid->proto = WPA_PROTO_RSN;
5603 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5604 ssid->group_cipher = WPA_CIPHER_CCMP;
5605 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5606 ssid->ssid = os_malloc(params->ssid_len);
5607 if (ssid->ssid == NULL) {
5608 wpa_config_remove_network(wpa_s->conf, ssid->id);
5611 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5612 ssid->ssid_len = params->ssid_len;
5613 ssid->p2p_group = 1;
5614 ssid->export_keys = 1;
5615 if (params->psk_set) {
5616 os_memcpy(ssid->psk, params->psk, 32);
5619 if (params->passphrase)
5620 ssid->passphrase = os_strdup(params->passphrase);
5622 wpa_s->show_group_started = 1;
5623 wpa_s->p2p_in_invitation = 1;
5624 wpa_s->p2p_invite_go_freq = freq;
5626 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5628 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5629 wpas_p2p_group_formation_timeout,
5630 wpa_s->parent, NULL);
5631 wpa_supplicant_select_network(wpa_s, ssid);
5637 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5638 struct wpa_ssid *ssid, int addr_allocated,
5639 int force_freq, int neg_freq, int ht40,
5640 int vht, const struct p2p_channels *channels,
5641 int connection_timeout)
5643 struct p2p_go_neg_results params;
5646 if (ssid->disabled != 2 || ssid->ssid == NULL)
5649 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5650 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5651 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5654 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5655 wpa_s->parent, NULL)) {
5657 * This can happen if Invitation Response frame was lost
5658 * and the peer (GO of a persistent group) tries to
5659 * invite us again. Reschedule the timeout to avoid
5660 * terminating the wait for the connection too early
5661 * since we now know that the peer is still trying to
5662 * invite us instead of having already started the GO.
5664 wpa_printf(MSG_DEBUG,
5665 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5666 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5667 wpas_p2p_group_formation_timeout,
5668 wpa_s->parent, NULL);
5673 os_free(wpa_s->global->add_psk);
5674 wpa_s->global->add_psk = NULL;
5676 /* Make sure we are not running find during connection establishment */
5677 wpas_p2p_stop_find_oper(wpa_s);
5679 wpa_s->p2p_fallback_to_go_neg = 0;
5681 if (ssid->mode == WPAS_MODE_P2P_GO) {
5682 if (force_freq > 0) {
5683 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5687 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5689 (freq > 0 && !freq_included(channels, freq)))
5692 } else if (ssid->mode == WPAS_MODE_INFRA) {
5694 if (freq <= 0 || !freq_included(channels, freq)) {
5695 struct os_reltime now;
5696 struct wpa_bss *bss =
5697 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5699 os_get_reltime(&now);
5701 !os_reltime_expired(&now, &bss->last_update, 5) &&
5702 freq_included(channels, bss->freq))
5708 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5713 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5717 params.psk_set = ssid->psk_set;
5719 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5720 if (ssid->passphrase) {
5721 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5722 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5723 "persistent group");
5726 os_strlcpy(params.passphrase, ssid->passphrase,
5727 sizeof(params.passphrase));
5729 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5730 params.ssid_len = ssid->ssid_len;
5731 params.persistent_group = 1;
5733 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5737 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5739 wpa_s->p2p_first_connection_timeout = connection_timeout;
5740 wpas_start_wps_go(wpa_s, ¶ms, 0);
5746 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5747 struct wpabuf *proberesp_ies)
5749 struct wpa_supplicant *wpa_s = ctx;
5750 if (wpa_s->ap_iface) {
5751 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5752 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5753 wpabuf_free(beacon_ies);
5754 wpabuf_free(proberesp_ies);
5758 wpabuf_free(hapd->p2p_beacon_ie);
5759 hapd->p2p_beacon_ie = beacon_ies;
5761 wpabuf_free(hapd->p2p_probe_resp_ie);
5762 hapd->p2p_probe_resp_ie = proberesp_ies;
5764 wpabuf_free(beacon_ies);
5765 wpabuf_free(proberesp_ies);
5767 wpa_supplicant_ap_update_beacon(wpa_s);
5771 static void wpas_p2p_idle_update(void *ctx, int idle)
5773 struct wpa_supplicant *wpa_s = ctx;
5774 if (!wpa_s->ap_iface)
5776 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5778 if (wpa_s->global->p2p_fail_on_wps_complete &&
5779 wpa_s->p2p_in_provisioning) {
5780 wpas_p2p_grpform_fail_after_wps(wpa_s);
5783 wpas_p2p_set_group_idle_timeout(wpa_s);
5785 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5789 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5790 struct wpa_ssid *ssid)
5792 struct p2p_group *group;
5793 struct p2p_group_config *cfg;
5795 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5798 cfg = os_zalloc(sizeof(*cfg));
5802 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5803 cfg->persistent_group = 2;
5804 else if (ssid->p2p_persistent_group)
5805 cfg->persistent_group = 1;
5806 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5807 if (wpa_s->max_stations &&
5808 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5809 cfg->max_clients = wpa_s->max_stations;
5811 cfg->max_clients = wpa_s->conf->max_num_sta;
5812 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5813 cfg->ssid_len = ssid->ssid_len;
5814 cfg->freq = ssid->frequency;
5815 cfg->cb_ctx = wpa_s;
5816 cfg->ie_update = wpas_p2p_ie_update;
5817 cfg->idle_update = wpas_p2p_idle_update;
5819 group = p2p_group_init(wpa_s->global->p2p, cfg);
5822 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5823 p2p_group_notif_formation_done(group);
5824 wpa_s->p2p_group = group;
5829 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5832 struct wpa_ssid *ssid = wpa_s->current_ssid;
5834 if (!wpa_s->p2p_in_provisioning) {
5835 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5836 "provisioning not in progress");
5840 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5841 u8 go_dev_addr[ETH_ALEN];
5842 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5843 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5845 /* Clear any stored provisioning info */
5846 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5849 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5851 wpa_s->p2p_go_group_formation_completed = 1;
5852 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5854 * Use a separate timeout for initial data connection to
5855 * complete to allow the group to be removed automatically if
5856 * something goes wrong in this step before the P2P group idle
5857 * timeout mechanism is taken into use.
5859 wpa_dbg(wpa_s, MSG_DEBUG,
5860 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5861 P2P_MAX_INITIAL_CONN_WAIT);
5862 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5863 wpas_p2p_group_formation_timeout,
5864 wpa_s->parent, NULL);
5867 * Use a separate timeout for initial data connection to
5868 * complete to allow the group to be removed automatically if
5869 * the client does not complete data connection successfully.
5871 wpa_dbg(wpa_s, MSG_DEBUG,
5872 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5873 P2P_MAX_INITIAL_CONN_WAIT_GO);
5874 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5875 wpas_p2p_group_formation_timeout,
5876 wpa_s->parent, NULL);
5878 * Complete group formation on first successful data connection
5880 wpa_s->p2p_go_group_formation_completed = 0;
5882 if (wpa_s->global->p2p)
5883 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5884 wpas_group_formation_completed(wpa_s, 1, 0);
5888 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5889 struct wps_event_fail *fail)
5891 if (!wpa_s->p2p_in_provisioning) {
5892 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5893 "provisioning not in progress");
5897 if (wpa_s->go_params) {
5898 p2p_clear_provisioning_info(
5900 wpa_s->go_params->peer_device_addr);
5903 wpas_notify_p2p_wps_failed(wpa_s, fail);
5905 if (wpa_s == wpa_s->global->p2p_group_formation) {
5907 * Allow some time for the failed WPS negotiation exchange to
5908 * complete, but remove the group since group formation cannot
5909 * succeed after provisioning failure.
5911 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5912 wpa_s->global->p2p_fail_on_wps_complete = 1;
5913 eloop_deplete_timeout(0, 50000,
5914 wpas_p2p_group_formation_timeout,
5915 wpa_s->parent, NULL);
5920 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5922 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5923 !wpa_s->p2p_in_provisioning)
5926 wpas_p2p_grpform_fail_after_wps(wpa_s);
5932 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5933 const char *config_method,
5934 enum wpas_p2p_prov_disc_use use,
5935 struct p2ps_provision *p2ps_prov)
5939 wpa_s->global->pending_p2ps_group = 0;
5940 wpa_s->p2p_fallback_to_go_neg = 0;
5941 wpa_s->pending_pd_use = NORMAL_PD;
5942 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
5943 p2ps_prov->conncap = p2ps_group_capability(
5944 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
5945 wpa_printf(MSG_DEBUG,
5946 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
5947 __func__, p2ps_prov->conncap,
5948 p2ps_prov->adv_id, p2ps_prov->conncap,
5949 p2ps_prov->status, p2ps_prov->info);
5952 } else if (os_strncmp(config_method, "display", 7) == 0)
5953 config_methods = WPS_CONFIG_DISPLAY;
5954 else if (os_strncmp(config_method, "keypad", 6) == 0)
5955 config_methods = WPS_CONFIG_KEYPAD;
5956 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5957 os_strncmp(config_method, "pushbutton", 10) == 0)
5958 config_methods = WPS_CONFIG_PUSHBUTTON;
5960 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5965 if (use == WPAS_P2P_PD_AUTO) {
5966 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5967 wpa_s->pending_pd_config_methods = config_methods;
5968 wpa_s->p2p_auto_pd = 1;
5969 wpa_s->p2p_auto_join = 0;
5970 wpa_s->pending_pd_before_join = 0;
5971 wpa_s->auto_pd_scan_retry = 0;
5972 wpas_p2p_stop_find(wpa_s);
5973 wpa_s->p2p_join_scan_count = 0;
5974 os_get_reltime(&wpa_s->p2p_auto_started);
5975 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5976 wpa_s->p2p_auto_started.sec,
5977 wpa_s->p2p_auto_started.usec);
5978 wpas_p2p_join_scan(wpa_s, NULL);
5982 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
5987 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
5988 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5993 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5996 return p2p_scan_result_text(ies, ies_len, buf, end);
6000 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6002 if (!offchannel_pending_action_tx(wpa_s))
6005 wpas_p2p_action_tx_clear(wpa_s);
6007 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6008 "operation request");
6009 offchannel_clear_pending_action_tx(wpa_s);
6013 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6014 enum p2p_discovery_type type,
6015 unsigned int num_req_dev_types, const u8 *req_dev_types,
6016 const u8 *dev_id, unsigned int search_delay,
6017 u8 seek_cnt, const char **seek_string, int freq)
6019 wpas_p2p_clear_pending_action_tx(wpa_s);
6020 wpa_s->p2p_long_listen = 0;
6022 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6023 wpa_s->p2p_in_provisioning)
6026 wpa_supplicant_cancel_sched_scan(wpa_s);
6028 return p2p_find(wpa_s->global->p2p, timeout, type,
6029 num_req_dev_types, req_dev_types, dev_id,
6030 search_delay, seek_cnt, seek_string, freq);
6034 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6035 struct wpa_scan_results *scan_res)
6037 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6039 if (wpa_s->p2p_scan_work) {
6040 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6041 wpa_s->p2p_scan_work = NULL;
6042 radio_work_done(work);
6045 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6049 * Indicate that results have been processed so that the P2P module can
6050 * continue pending tasks.
6052 p2p_scan_res_handled(wpa_s->global->p2p);
6056 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6058 wpas_p2p_clear_pending_action_tx(wpa_s);
6059 wpa_s->p2p_long_listen = 0;
6060 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6061 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6063 if (wpa_s->global->p2p)
6064 p2p_stop_find(wpa_s->global->p2p);
6066 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6067 wpa_printf(MSG_DEBUG,
6068 "P2P: Do not consider the scan results after stop_find");
6069 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6074 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6076 wpas_p2p_stop_find_oper(wpa_s);
6077 if (!wpa_s->global->pending_group_iface_for_p2ps)
6078 wpas_p2p_remove_pending_group_interface(wpa_s);
6082 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6084 struct wpa_supplicant *wpa_s = eloop_ctx;
6085 wpa_s->p2p_long_listen = 0;
6089 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6093 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6096 wpa_supplicant_cancel_sched_scan(wpa_s);
6097 wpas_p2p_clear_pending_action_tx(wpa_s);
6101 * This is a request for unlimited Listen state. However, at
6102 * least for now, this is mapped to a Listen state for one
6107 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6108 wpa_s->p2p_long_listen = 0;
6111 * Stop previous find/listen operation to avoid trying to request a new
6112 * remain-on-channel operation while the driver is still running the
6115 if (wpa_s->global->p2p)
6116 p2p_stop_find(wpa_s->global->p2p);
6118 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6119 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6120 wpa_s->p2p_long_listen = timeout * 1000;
6121 eloop_register_timeout(timeout, 0,
6122 wpas_p2p_long_listen_timeout,
6130 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6131 u8 *buf, size_t len, int p2p_group)
6133 struct wpabuf *p2p_ie;
6136 if (wpa_s->global->p2p_disabled)
6139 * Advertize mandatory cross connection capability even on
6140 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6142 if (wpa_s->conf->p2p_disabled && p2p_group)
6144 if (wpa_s->global->p2p == NULL)
6149 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6150 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6152 wpabuf_free(p2p_ie);
6158 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6159 const u8 *dst, const u8 *bssid,
6160 const u8 *ie, size_t ie_len,
6161 unsigned int rx_freq, int ssi_signal)
6163 if (wpa_s->global->p2p_disabled)
6165 if (wpa_s->global->p2p == NULL)
6168 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6169 ie, ie_len, rx_freq)) {
6170 case P2P_PREQ_NOT_P2P:
6171 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6174 case P2P_PREQ_MALFORMED:
6175 case P2P_PREQ_NOT_LISTEN:
6176 case P2P_PREQ_NOT_PROCESSED:
6177 default: /* make gcc happy */
6179 case P2P_PREQ_PROCESSED:
6185 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6186 const u8 *sa, const u8 *bssid,
6187 u8 category, const u8 *data, size_t len, int freq)
6189 if (wpa_s->global->p2p_disabled)
6191 if (wpa_s->global->p2p == NULL)
6194 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6199 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6201 if (wpa_s->global->p2p_disabled)
6203 if (wpa_s->global->p2p == NULL)
6206 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6210 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6212 p2p_group_deinit(wpa_s->p2p_group);
6213 wpa_s->p2p_group = NULL;
6215 wpa_s->ap_configured_cb = NULL;
6216 wpa_s->ap_configured_cb_ctx = NULL;
6217 wpa_s->ap_configured_cb_data = NULL;
6218 wpa_s->connect_without_scan = NULL;
6222 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6224 wpa_s->p2p_long_listen = 0;
6226 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6229 return p2p_reject(wpa_s->global->p2p, addr);
6233 /* Invite to reinvoke a persistent group */
6234 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6235 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6236 int ht40, int vht, int pref_freq)
6238 enum p2p_invite_role role;
6242 int no_pref_freq_given = pref_freq == 0;
6243 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6245 wpa_s->global->p2p_invite_group = NULL;
6247 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6249 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6251 wpa_s->p2p_persistent_go_freq = freq;
6252 wpa_s->p2p_go_ht40 = !!ht40;
6253 if (ssid->mode == WPAS_MODE_P2P_GO) {
6254 role = P2P_INVITE_ROLE_GO;
6255 if (peer_addr == NULL) {
6256 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6257 "address in invitation command");
6260 if (wpas_p2p_create_iface(wpa_s)) {
6261 if (wpas_p2p_add_group_interface(wpa_s,
6262 WPA_IF_P2P_GO) < 0) {
6263 wpa_printf(MSG_ERROR, "P2P: Failed to "
6264 "allocate a new interface for the "
6268 bssid = wpa_s->pending_interface_addr;
6270 bssid = wpa_s->own_addr;
6272 role = P2P_INVITE_ROLE_CLIENT;
6273 peer_addr = ssid->bssid;
6275 wpa_s->pending_invite_ssid_id = ssid->id;
6277 size = P2P_MAX_PREF_CHANNELS;
6278 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6279 role == P2P_INVITE_ROLE_GO,
6280 pref_freq_list, &size);
6284 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6287 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6288 no_pref_freq_given && pref_freq > 0 &&
6289 wpa_s->num_multichan_concurrent > 1 &&
6290 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6291 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6297 * Stop any find/listen operations before invitation and possibly
6298 * connection establishment.
6300 wpas_p2p_stop_find_oper(wpa_s);
6302 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6303 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6308 /* Invite to join an active group */
6309 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6310 const u8 *peer_addr, const u8 *go_dev_addr)
6312 struct wpa_global *global = wpa_s->global;
6313 enum p2p_invite_role role;
6315 struct wpa_ssid *ssid;
6317 int freq = 0, force_freq = 0, pref_freq = 0;
6319 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6321 wpa_s->p2p_persistent_go_freq = 0;
6322 wpa_s->p2p_go_ht40 = 0;
6323 wpa_s->p2p_go_vht = 0;
6325 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6326 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6329 if (wpa_s == NULL) {
6330 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6334 ssid = wpa_s->current_ssid;
6336 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6341 wpa_s->global->p2p_invite_group = wpa_s;
6342 persistent = ssid->p2p_persistent_group &&
6343 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6344 ssid->ssid, ssid->ssid_len);
6346 if (ssid->mode == WPAS_MODE_P2P_GO) {
6347 role = P2P_INVITE_ROLE_ACTIVE_GO;
6348 bssid = wpa_s->own_addr;
6349 if (go_dev_addr == NULL)
6350 go_dev_addr = wpa_s->global->p2p_dev_addr;
6351 freq = ssid->frequency;
6353 role = P2P_INVITE_ROLE_CLIENT;
6354 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6355 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6356 "invite to current group");
6359 bssid = wpa_s->bssid;
6360 if (go_dev_addr == NULL &&
6361 !is_zero_ether_addr(wpa_s->go_dev_addr))
6362 go_dev_addr = wpa_s->go_dev_addr;
6363 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6364 (int) wpa_s->assoc_freq;
6366 wpa_s->parent->pending_invite_ssid_id = -1;
6368 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6371 size = P2P_MAX_PREF_CHANNELS;
6372 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6373 role == P2P_INVITE_ROLE_ACTIVE_GO,
6374 pref_freq_list, &size);
6377 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6379 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6380 ssid->ssid, ssid->ssid_len, force_freq,
6381 go_dev_addr, persistent, pref_freq, -1);
6385 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6387 struct wpa_ssid *ssid = wpa_s->current_ssid;
6388 u8 go_dev_addr[ETH_ALEN];
6389 int network_id = -1;
6395 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6396 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6397 wpa_s->parent, NULL);
6400 if (!wpa_s->show_group_started || !ssid)
6403 wpa_s->show_group_started = 0;
6405 os_memset(go_dev_addr, 0, ETH_ALEN);
6406 if (ssid->bssid_set)
6407 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6408 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6410 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6412 if (wpa_s->global->p2p_group_formation == wpa_s)
6413 wpa_s->global->p2p_group_formation = NULL;
6415 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6416 (int) wpa_s->assoc_freq;
6419 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6422 res = os_snprintf(ip_addr, sizeof(ip_addr),
6423 " ip_addr=%u.%u.%u.%u "
6424 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6425 ip[0], ip[1], ip[2], ip[3],
6426 ip[4], ip[5], ip[6], ip[7],
6427 ip[8], ip[9], ip[10], ip[11]);
6428 if (os_snprintf_error(sizeof(ip_addr), res))
6432 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6433 ssid->passphrase == NULL && ssid->psk_set ?
6435 ssid->passphrase, go_dev_addr, persistent,
6439 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6442 network_id = ssid->id;
6443 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6447 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6448 u32 interval1, u32 duration2, u32 interval2)
6452 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6455 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6456 wpa_s->current_ssid == NULL ||
6457 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6460 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6461 wpa_s->own_addr, wpa_s->assoc_freq,
6462 duration1, interval1, duration2, interval2);
6464 wpa_s->waiting_presence_resp = 1;
6470 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6471 unsigned int interval)
6473 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6476 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6480 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6482 if (wpa_s->current_ssid == NULL) {
6484 * current_ssid can be cleared when P2P client interface gets
6485 * disconnected, so assume this interface was used as P2P
6490 return wpa_s->current_ssid->p2p_group &&
6491 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6495 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6497 struct wpa_supplicant *wpa_s = eloop_ctx;
6499 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6500 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6505 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6507 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6511 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6515 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6516 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6518 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6521 timeout = wpa_s->conf->p2p_group_idle;
6522 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6523 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6524 timeout = P2P_MAX_CLIENT_IDLE;
6530 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6531 timeout = 0; /* special client mode no-timeout */
6536 if (wpa_s->p2p_in_provisioning) {
6538 * Use the normal group formation timeout during the
6539 * provisioning phase to avoid terminating this process too
6540 * early due to group idle timeout.
6542 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6543 "during provisioning");
6547 if (wpa_s->show_group_started) {
6549 * Use the normal group formation timeout between the end of
6550 * the provisioning phase and completion of 4-way handshake to
6551 * avoid terminating this process too early due to group idle
6554 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6555 "while waiting for initial 4-way handshake to "
6560 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6562 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6567 /* Returns 1 if the interface was removed */
6568 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6569 u16 reason_code, const u8 *ie, size_t ie_len,
6570 int locally_generated)
6572 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6575 if (!locally_generated)
6576 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6579 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6580 wpa_s->current_ssid &&
6581 wpa_s->current_ssid->p2p_group &&
6582 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6583 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6584 "session is ending");
6585 if (wpas_p2p_group_delete(wpa_s,
6586 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6595 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6596 u16 reason_code, const u8 *ie, size_t ie_len,
6597 int locally_generated)
6599 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6602 if (!locally_generated)
6603 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6608 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6610 struct p2p_data *p2p = wpa_s->global->p2p;
6615 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6618 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6619 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6621 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6622 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6625 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6626 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6628 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6629 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6631 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6632 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6633 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6634 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6635 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6638 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6639 p2p_set_sec_dev_types(p2p,
6640 (void *) wpa_s->conf->sec_device_type,
6641 wpa_s->conf->num_sec_device_types);
6643 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6645 p2p_remove_wps_vendor_extensions(p2p);
6646 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6647 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6649 p2p_add_wps_vendor_extension(
6650 p2p, wpa_s->conf->wps_vendor_ext[i]);
6654 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6655 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6657 country[0] = wpa_s->conf->country[0];
6658 country[1] = wpa_s->conf->country[1];
6660 p2p_set_country(p2p, country);
6663 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6664 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6665 wpa_s->conf->p2p_ssid_postfix ?
6666 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6670 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6671 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6673 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6674 u8 reg_class, channel;
6679 if (wpa_s->conf->p2p_listen_reg_class &&
6680 wpa_s->conf->p2p_listen_channel) {
6681 reg_class = wpa_s->conf->p2p_listen_reg_class;
6682 channel = wpa_s->conf->p2p_listen_channel;
6687 * Pick one of the social channels randomly as the
6690 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6693 channel = 1 + (r % 3) * 5;
6696 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6699 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6702 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6703 u8 op_reg_class, op_channel, cfg_op_channel;
6706 if (wpa_s->conf->p2p_oper_reg_class &&
6707 wpa_s->conf->p2p_oper_channel) {
6708 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6709 op_channel = wpa_s->conf->p2p_oper_channel;
6714 * Use random operation channel from (1, 6, 11)
6715 *if no other preference is indicated.
6717 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6720 op_channel = 1 + (r % 3) * 5;
6723 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6726 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6730 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6731 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6732 wpa_s->conf->p2p_pref_chan) < 0) {
6733 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6737 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6738 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6743 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6744 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6748 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6751 if (!wpa_s->ap_iface)
6753 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6758 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6760 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6763 wpa_s->global->cross_connection = enabled;
6764 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6767 struct wpa_supplicant *iface;
6769 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6771 if (iface->cross_connect_enabled == 0)
6774 iface->cross_connect_enabled = 0;
6775 iface->cross_connect_in_use = 0;
6776 wpa_msg_global(iface->parent, MSG_INFO,
6777 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6779 iface->cross_connect_uplink);
6787 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6789 struct wpa_supplicant *iface;
6791 if (!uplink->global->cross_connection)
6794 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6795 if (!iface->cross_connect_enabled)
6797 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6800 if (iface->ap_iface == NULL)
6802 if (iface->cross_connect_in_use)
6805 iface->cross_connect_in_use = 1;
6806 wpa_msg_global(iface->parent, MSG_INFO,
6807 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6808 iface->ifname, iface->cross_connect_uplink);
6813 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6815 struct wpa_supplicant *iface;
6817 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6818 if (!iface->cross_connect_enabled)
6820 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6823 if (!iface->cross_connect_in_use)
6826 wpa_msg_global(iface->parent, MSG_INFO,
6827 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6828 iface->ifname, iface->cross_connect_uplink);
6829 iface->cross_connect_in_use = 0;
6834 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6836 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6837 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6838 wpa_s->cross_connect_disallowed)
6839 wpas_p2p_disable_cross_connect(wpa_s);
6841 wpas_p2p_enable_cross_connect(wpa_s);
6842 if (!wpa_s->ap_iface &&
6843 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6844 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6848 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6850 wpas_p2p_disable_cross_connect(wpa_s);
6851 if (!wpa_s->ap_iface &&
6852 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6854 wpas_p2p_set_group_idle_timeout(wpa_s);
6858 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6860 struct wpa_supplicant *iface;
6862 if (!wpa_s->global->cross_connection)
6865 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6868 if (iface->drv_flags &
6869 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6871 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
6872 iface != wpa_s->parent)
6875 wpa_s->cross_connect_enabled = 1;
6876 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6877 sizeof(wpa_s->cross_connect_uplink));
6878 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6879 "%s to %s whenever uplink is available",
6880 wpa_s->ifname, wpa_s->cross_connect_uplink);
6882 if (iface->ap_iface || iface->current_ssid == NULL ||
6883 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6884 iface->cross_connect_disallowed ||
6885 iface->wpa_state != WPA_COMPLETED)
6888 wpa_s->cross_connect_in_use = 1;
6889 wpa_msg_global(wpa_s->parent, MSG_INFO,
6890 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6891 wpa_s->ifname, wpa_s->cross_connect_uplink);
6897 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6899 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6900 !wpa_s->p2p_in_provisioning)
6901 return 0; /* not P2P client operation */
6903 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6905 if (wpa_s != wpa_s->parent)
6906 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6907 wpas_p2p_group_formation_failed(wpa_s, 0);
6912 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6914 struct wpa_supplicant *wpa_s = eloop_ctx;
6915 wpas_p2p_notif_pbc_overlap(wpa_s);
6919 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6921 struct p2p_channels chan, cli_chan;
6922 struct wpa_supplicant *ifs;
6924 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6927 os_memset(&chan, 0, sizeof(chan));
6928 os_memset(&cli_chan, 0, sizeof(cli_chan));
6929 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6930 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6935 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6937 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6939 if (!ifs->current_ssid ||
6940 !ifs->current_ssid->p2p_group ||
6941 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6942 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6944 freq = ifs->current_ssid->frequency;
6945 if (freq_included(&chan, freq)) {
6946 wpa_dbg(ifs, MSG_DEBUG,
6947 "P2P GO operating frequency %d MHz in valid range",
6952 wpa_dbg(ifs, MSG_DEBUG,
6953 "P2P GO operating in invalid frequency %d MHz", freq);
6954 /* TODO: Consider using CSA or removing the group within
6956 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6961 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6962 struct wpa_scan_results *scan_res)
6964 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6968 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6970 struct wpa_global *global = wpa_s->global;
6974 if (global->p2p == NULL)
6977 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6979 if (wpa_s->pending_interface_name[0] &&
6980 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6983 peer = p2p_get_go_neg_peer(global->p2p);
6985 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6986 MACSTR, MAC2STR(peer));
6987 p2p_unauthorize(global->p2p, peer);
6991 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6992 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6993 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6997 if (wpa_s->pending_pd_before_join) {
6998 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6999 wpa_s->pending_pd_before_join = 0;
7003 wpas_p2p_stop_find(wpa_s);
7005 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7006 if (wpa_s == global->p2p_group_formation &&
7007 (wpa_s->p2p_in_provisioning ||
7008 wpa_s->parent->pending_interface_type ==
7009 WPA_IF_P2P_CLIENT)) {
7010 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7011 "formation found - cancelling",
7014 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7015 wpa_s->parent, NULL);
7016 if (wpa_s->p2p_in_provisioning) {
7017 wpas_group_formation_completed(wpa_s, 0, 0);
7020 wpas_p2p_group_delete(wpa_s,
7021 P2P_GROUP_REMOVAL_REQUESTED);
7023 } else if (wpa_s->p2p_in_invitation) {
7024 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7027 wpas_p2p_group_formation_failed(wpa_s, 0);
7032 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7040 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7042 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7045 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7046 "being available anymore");
7047 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7051 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7052 int freq_24, int freq_5, int freq_overall)
7054 struct p2p_data *p2p = wpa_s->global->p2p;
7057 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7061 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7064 struct p2p_data *p2p = wpa_s->global->p2p;
7069 if (hwaddr_aton(addr, peer))
7072 return p2p_unauthorize(p2p, peer);
7077 * wpas_p2p_disconnect - Disconnect from a P2P Group
7078 * @wpa_s: Pointer to wpa_supplicant data
7079 * Returns: 0 on success, -1 on failure
7081 * This can be used to disconnect from a group in which the local end is a P2P
7082 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7083 * virtual network interface was created for this group, that interface will be
7084 * removed. Otherwise, only the configured P2P group network will be removed
7085 * from the interface.
7087 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7093 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7098 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7102 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7105 ret = p2p_in_progress(wpa_s->global->p2p);
7108 * Check whether there is an ongoing WPS provisioning step (or
7109 * other parts of group formation) on another interface since
7110 * p2p_in_progress() does not report this to avoid issues for
7111 * scans during such provisioning step.
7113 if (wpa_s->global->p2p_group_formation &&
7114 wpa_s->global->p2p_group_formation != wpa_s) {
7115 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7116 "in group formation",
7117 wpa_s->global->p2p_group_formation->ifname);
7122 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7123 struct os_reltime now;
7124 os_get_reltime(&now);
7125 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7126 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7127 /* Wait for the first client has expired */
7128 wpa_s->global->p2p_go_wait_client.sec = 0;
7130 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7139 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7140 struct wpa_ssid *ssid)
7142 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7143 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7144 wpa_s->parent, NULL) > 0) {
7146 * Remove the network by scheduling the group formation
7147 * timeout to happen immediately. The teardown code
7148 * needs to be scheduled to run asynch later so that we
7149 * don't delete data from under ourselves unexpectedly.
7150 * Calling wpas_p2p_group_formation_timeout directly
7151 * causes a series of crashes in WPS failure scenarios.
7153 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7154 "P2P group network getting removed");
7155 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7156 wpa_s->parent, NULL);
7161 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7162 const u8 *addr, const u8 *ssid,
7168 for (s = wpa_s->conf->ssid; s; s = s->next) {
7169 if (s->disabled != 2)
7172 (ssid_len != s->ssid_len ||
7173 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7176 if (s->mode == WPAS_MODE_P2P_GO)
7180 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7181 return s; /* peer is GO in the persistent group */
7182 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7184 for (i = 0; i < s->num_p2p_clients; i++) {
7185 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7186 addr, ETH_ALEN) == 0)
7187 return s; /* peer is P2P client in persistent
7196 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7199 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7200 wpa_s->parent, NULL) > 0) {
7202 * This can happen if WPS provisioning step is not terminated
7203 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7204 * peer was able to connect, there is no need to time out group
7205 * formation after this, though. In addition, this is used with
7206 * the initial connection wait on the GO as a separate formation
7207 * timeout and as such, expected to be hit after the initial WPS
7208 * provisioning step.
7210 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7212 if (!wpa_s->p2p_go_group_formation_completed &&
7213 !wpa_s->group_formation_reported) {
7215 * GO has not yet notified group formation success since
7216 * the WPS step was not completed cleanly. Do that
7217 * notification now since the P2P Client was able to
7218 * connect and as such, must have received the
7219 * credential from the WPS step.
7221 if (wpa_s->global->p2p)
7222 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7223 wpas_group_formation_completed(wpa_s, 1, 0);
7226 if (!wpa_s->p2p_go_group_formation_completed) {
7227 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7228 wpa_s->p2p_go_group_formation_completed = 1;
7229 wpa_s->global->p2p_group_formation = NULL;
7230 wpa_s->p2p_in_provisioning = 0;
7231 wpa_s->p2p_in_invitation = 0;
7233 wpa_s->global->p2p_go_wait_client.sec = 0;
7236 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7240 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7243 struct wpa_supplicant *group = wpa_s;
7246 if (wpa_s->global->p2p_group_formation)
7247 group = wpa_s->global->p2p_group_formation;
7248 wpa_s = wpa_s->global->p2p_init_wpa_s;
7249 offchannel_send_action_done(wpa_s);
7251 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7252 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7253 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7254 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7255 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7256 wpa_s->p2p_persistent_id,
7257 wpa_s->p2p_pd_before_go_neg,
7264 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7268 if (!wpa_s->p2p_fallback_to_go_neg ||
7269 wpa_s->p2p_in_provisioning <= 5)
7272 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7273 return 0; /* peer operating as a GO */
7275 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7276 "fallback to GO Negotiation");
7277 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7278 "reason=GO-not-found");
7279 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7281 return res == 1 ? 2 : 1;
7285 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7287 struct wpa_supplicant *ifs;
7289 if (wpa_s->wpa_state > WPA_SCANNING) {
7290 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7291 "concurrent operation",
7292 wpa_s->conf->p2p_search_delay);
7293 return wpa_s->conf->p2p_search_delay;
7296 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7298 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7299 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7300 "delay due to concurrent operation on "
7302 wpa_s->conf->p2p_search_delay,
7304 return wpa_s->conf->p2p_search_delay;
7312 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7313 struct wpa_ssid *s, const u8 *addr,
7316 struct psk_list_entry *psk, *tmp;
7319 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7321 if ((iface_addr && !psk->p2p &&
7322 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7323 (!iface_addr && psk->p2p &&
7324 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7325 wpa_dbg(wpa_s, MSG_DEBUG,
7326 "P2P: Remove persistent group PSK list entry for "
7328 MAC2STR(psk->addr), psk->p2p);
7329 dl_list_del(&psk->list);
7339 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7340 const u8 *p2p_dev_addr,
7341 const u8 *psk, size_t psk_len)
7343 struct wpa_ssid *ssid = wpa_s->current_ssid;
7344 struct wpa_ssid *persistent;
7345 struct psk_list_entry *p, *last;
7347 if (psk_len != sizeof(p->psk))
7351 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7352 " p2p_dev_addr=" MACSTR,
7353 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7354 if (is_zero_ether_addr(p2p_dev_addr))
7355 p2p_dev_addr = NULL;
7357 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7361 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7362 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7363 /* To be added to persistent group once created */
7364 if (wpa_s->global->add_psk == NULL) {
7365 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7366 if (wpa_s->global->add_psk == NULL)
7369 p = wpa_s->global->add_psk;
7372 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7375 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7377 os_memcpy(p->psk, psk, psk_len);
7381 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7382 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7386 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7389 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7393 p = os_zalloc(sizeof(*p));
7398 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7401 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7403 os_memcpy(p->psk, psk, psk_len);
7405 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7406 (last = dl_list_last(&persistent->psk_list,
7407 struct psk_list_entry, list))) {
7408 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7409 MACSTR " (p2p=%u) to make room for a new one",
7410 MAC2STR(last->addr), last->p2p);
7411 dl_list_del(&last->list);
7415 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7416 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7417 p2p_dev_addr == NULL);
7419 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7420 MACSTR, MAC2STR(p2p_dev_addr));
7422 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7425 dl_list_add(&persistent->psk_list, &p->list);
7427 if (wpa_s->parent->conf->update_config &&
7428 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7429 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7433 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7434 struct wpa_ssid *s, const u8 *addr,
7439 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7440 if (res > 0 && wpa_s->conf->update_config &&
7441 wpa_config_write(wpa_s->confname, wpa_s->conf))
7442 wpa_dbg(wpa_s, MSG_DEBUG,
7443 "P2P: Failed to update configuration");
7447 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7448 const u8 *peer, int iface_addr)
7450 struct hostapd_data *hapd;
7451 struct hostapd_wpa_psk *psk, *prev, *rem;
7452 struct sta_info *sta;
7454 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7455 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7458 /* Remove per-station PSK entry */
7459 hapd = wpa_s->ap_iface->bss[0];
7461 psk = hapd->conf->ssid.wpa_psk;
7463 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7465 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7466 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7467 MACSTR " iface_addr=%d",
7468 MAC2STR(peer), iface_addr);
7470 prev->next = psk->next;
7472 hapd->conf->ssid.wpa_psk = psk->next;
7482 /* Disconnect from group */
7484 sta = ap_get_sta(hapd, peer);
7486 sta = ap_get_sta_p2p(hapd, peer);
7488 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7489 " (iface_addr=%d) from group",
7490 MAC2STR(peer), iface_addr);
7491 hostapd_drv_sta_deauth(hapd, sta->addr,
7492 WLAN_REASON_DEAUTH_LEAVING);
7493 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7498 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7502 struct wpa_supplicant *w;
7503 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
7505 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7507 /* Remove from any persistent group */
7508 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
7509 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7512 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7513 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
7516 /* Remove from any operating group */
7517 for (w = wpa_s->global->ifaces; w; w = w->next)
7518 wpas_p2p_remove_client_go(w, peer, iface_addr);
7522 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7524 struct wpa_supplicant *wpa_s = eloop_ctx;
7525 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7529 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7531 struct wpa_supplicant *wpa_s = eloop_ctx;
7533 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7534 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7538 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7539 struct wpa_ssid *ssid)
7541 struct wpa_supplicant *iface;
7543 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7544 if (!iface->current_ssid ||
7545 iface->current_ssid->frequency == freq ||
7546 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7547 !iface->current_ssid->p2p_group))
7550 /* Remove the connection with least priority */
7551 if (!wpas_is_p2p_prioritized(iface)) {
7552 /* STA connection has priority over existing
7553 * P2P connection, so remove the interface. */
7554 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7555 eloop_register_timeout(0, 0,
7556 wpas_p2p_group_freq_conflict,
7558 /* If connection in progress is P2P connection, do not
7559 * proceed for the connection. */
7565 /* P2P connection has priority, disable the STA network
7567 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7569 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7570 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7571 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7573 /* If P2P connection is in progress, continue
7586 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7588 struct wpa_ssid *ssid = wpa_s->current_ssid;
7590 if (ssid == NULL || !ssid->p2p_group)
7593 if (wpa_s->p2p_last_4way_hs_fail &&
7594 wpa_s->p2p_last_4way_hs_fail == ssid) {
7595 u8 go_dev_addr[ETH_ALEN];
7596 struct wpa_ssid *persistent;
7598 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7600 ssid->ssid_len) <= 0) {
7601 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7605 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7606 MACSTR, MAC2STR(go_dev_addr));
7607 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7610 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7611 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7614 wpa_msg_global(wpa_s->parent, MSG_INFO,
7615 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7618 wpa_s->p2p_last_4way_hs_fail = NULL;
7620 * Remove the group from a timeout to avoid issues with caller
7621 * continuing to use the interface if this is on a P2P group
7624 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7629 wpa_s->p2p_last_4way_hs_fail = ssid;
7634 #ifdef CONFIG_WPS_NFC
7636 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7644 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7648 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7649 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7656 wpabuf_put_be16(ret, wsc_len);
7658 wpabuf_put_buf(ret, wsc);
7659 wpabuf_put_be16(ret, wpabuf_len(p2p));
7660 wpabuf_put_buf(ret, p2p);
7664 wpa_hexdump_buf(MSG_DEBUG,
7665 "P2P: Generated NFC connection handover message", ret);
7669 tmp = ndef_build_p2p(ret);
7672 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7682 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7683 struct wpa_ssid **ssid, u8 *go_dev_addr)
7685 struct wpa_supplicant *iface;
7688 os_memset(go_dev_addr, 0, ETH_ALEN);
7691 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7692 if (iface->wpa_state < WPA_ASSOCIATING ||
7693 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7694 !iface->current_ssid->p2p_group ||
7695 iface->current_ssid->mode != WPAS_MODE_INFRA)
7698 *ssid = iface->current_ssid;
7700 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7701 return iface->assoc_freq;
7707 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7710 struct wpabuf *wsc, *p2p;
7711 struct wpa_ssid *ssid;
7712 u8 go_dev_addr[ETH_ALEN];
7713 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7715 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7716 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7720 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7721 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7722 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7723 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7727 if (cli_freq == 0) {
7728 wsc = wps_build_nfc_handover_req_p2p(
7729 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7732 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7733 go_dev_addr, ssid ? ssid->ssid : NULL,
7734 ssid ? ssid->ssid_len : 0);
7736 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7740 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7743 struct wpabuf *wsc, *p2p;
7744 struct wpa_ssid *ssid;
7745 u8 go_dev_addr[ETH_ALEN];
7746 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7748 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7751 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7752 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7753 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7756 if (cli_freq == 0) {
7757 wsc = wps_build_nfc_handover_sel_p2p(
7759 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7760 DEV_PW_NFC_CONNECTION_HANDOVER,
7761 wpa_s->conf->wps_nfc_dh_pubkey,
7762 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7765 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7766 go_dev_addr, ssid ? ssid->ssid : NULL,
7767 ssid ? ssid->ssid_len : 0);
7769 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7773 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7774 struct p2p_nfc_params *params)
7776 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7777 "connection handover (freq=%d)",
7780 if (params->go_freq && params->go_ssid_len) {
7781 wpa_s->p2p_wps_method = WPS_NFC;
7782 wpa_s->pending_join_wps_method = WPS_NFC;
7783 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7784 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7786 return wpas_p2p_join_start(wpa_s, params->go_freq,
7788 params->go_ssid_len);
7791 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7792 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
7793 params->go_freq, -1, 0, 1, 1);
7797 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
7798 struct p2p_nfc_params *params, int tag)
7800 int res, persistent;
7801 struct wpa_ssid *ssid;
7803 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7804 "connection handover");
7805 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7806 ssid = wpa_s->current_ssid;
7809 if (ssid->mode != WPAS_MODE_P2P_GO)
7811 if (wpa_s->ap_iface == NULL)
7815 if (wpa_s == NULL) {
7816 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7820 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7821 DEV_PW_NFC_CONNECTION_HANDOVER &&
7822 !wpa_s->parent->p2p_oob_dev_pw) {
7823 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7826 res = wpas_ap_wps_add_nfc_pw(
7827 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7828 wpa_s->parent->p2p_oob_dev_pw,
7829 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7830 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
7835 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7839 if (!params->peer ||
7840 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7843 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7844 " to join", MAC2STR(params->peer->p2p_device_addr));
7846 wpa_s->global->p2p_invite_group = wpa_s;
7847 persistent = ssid->p2p_persistent_group &&
7848 wpas_p2p_get_persistent(wpa_s->parent,
7849 params->peer->p2p_device_addr,
7850 ssid->ssid, ssid->ssid_len);
7851 wpa_s->parent->pending_invite_ssid_id = -1;
7853 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7854 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7855 ssid->ssid, ssid->ssid_len, ssid->frequency,
7856 wpa_s->global->p2p_dev_addr, persistent, 0,
7857 wpa_s->parent->p2p_oob_dev_pw_id);
7861 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
7862 struct p2p_nfc_params *params,
7865 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7866 "connection handover");
7867 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7868 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
7869 forced_freq, -1, 0, 1, 1);
7873 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
7874 struct p2p_nfc_params *params,
7879 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7880 "connection handover");
7881 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7882 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
7883 forced_freq, -1, 0, 1, 1);
7887 res = wpas_p2p_listen(wpa_s, 60);
7889 p2p_unauthorize(wpa_s->global->p2p,
7890 params->peer->p2p_device_addr);
7897 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7898 const struct wpabuf *data,
7899 int sel, int tag, int forced_freq)
7901 const u8 *pos, *end;
7903 struct p2p_nfc_params params;
7906 os_memset(¶ms, 0, sizeof(params));
7909 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7911 pos = wpabuf_head(data);
7912 end = pos + wpabuf_len(data);
7914 if (end - pos < 2) {
7915 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7919 len = WPA_GET_BE16(pos);
7921 if (len > end - pos) {
7922 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7926 params.wsc_attr = pos;
7927 params.wsc_len = len;
7930 if (end - pos < 2) {
7931 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7935 len = WPA_GET_BE16(pos);
7937 if (len > end - pos) {
7938 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7942 params.p2p_attr = pos;
7943 params.p2p_len = len;
7946 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7947 params.wsc_attr, params.wsc_len);
7948 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7949 params.p2p_attr, params.p2p_len);
7951 wpa_hexdump(MSG_DEBUG,
7952 "P2P: Ignored extra data after P2P attributes",
7956 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
7960 if (params.next_step == NO_ACTION)
7963 if (params.next_step == BOTH_GO) {
7964 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7965 MAC2STR(params.peer->p2p_device_addr));
7969 if (params.next_step == PEER_CLIENT) {
7970 if (!is_zero_ether_addr(params.go_dev_addr)) {
7971 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7972 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7974 MAC2STR(params.peer->p2p_device_addr),
7976 MAC2STR(params.go_dev_addr),
7977 wpa_ssid_txt(params.go_ssid,
7978 params.go_ssid_len));
7980 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7981 "peer=" MACSTR " freq=%d",
7982 MAC2STR(params.peer->p2p_device_addr),
7988 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
7989 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7990 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7994 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7995 wpa_s->p2p_oob_dev_pw = NULL;
7997 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7998 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8003 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8004 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8005 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8006 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8007 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8008 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8009 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8013 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8014 "peer OOB Device Password Id %u", id);
8017 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8018 "Device Password Id %u", id);
8019 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8020 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8021 params.oob_dev_pw_len -
8022 WPS_OOB_PUBKEY_HASH_LEN - 2);
8023 wpa_s->p2p_oob_dev_pw_id = id;
8024 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8025 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8026 params.oob_dev_pw_len -
8027 WPS_OOB_PUBKEY_HASH_LEN - 2);
8028 if (wpa_s->p2p_oob_dev_pw == NULL)
8031 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8032 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8033 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8036 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8037 "without Device Password");
8038 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8041 switch (params.next_step) {
8045 /* already covered above */
8048 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8050 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8052 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8054 /* TODO: use own OOB Dev Pw */
8055 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8062 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8063 const struct wpabuf *data, int forced_freq)
8065 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8068 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8072 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8073 const struct wpabuf *req,
8074 const struct wpabuf *sel, int forced_freq)
8079 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8082 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8084 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8085 wpabuf_head(req), wpabuf_len(req));
8086 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8087 wpabuf_head(sel), wpabuf_len(sel));
8089 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8090 tmp = ndef_parse_p2p(init ? sel : req);
8092 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8096 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8104 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8107 int go_intent = wpa_s->conf->p2p_go_intent;
8108 struct wpa_supplicant *iface;
8110 if (wpa_s->global->p2p == NULL)
8114 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8115 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8117 if (!iface->ap_iface)
8119 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8121 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8123 if (wpa_s->p2p_nfc_tag_enabled)
8124 wpas_p2p_remove_pending_group_interface(wpa_s);
8125 wpa_s->p2p_nfc_tag_enabled = 0;
8129 if (wpa_s->global->p2p_disabled)
8132 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8133 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8134 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8135 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8136 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8137 "to allow static handover cases");
8141 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8143 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8144 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8145 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8146 if (wpa_s->p2p_oob_dev_pw == NULL)
8148 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8150 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8151 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8153 * P2P Group Interface present and the command came on group
8154 * interface, so enable the token for the current interface.
8156 wpa_s->create_p2p_iface = 0;
8158 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8161 if (wpa_s->create_p2p_iface) {
8162 enum wpa_driver_if_type iftype;
8163 /* Prepare to add a new interface for the group */
8164 iftype = WPA_IF_P2P_GROUP;
8165 if (go_intent == 15)
8166 iftype = WPA_IF_P2P_GO;
8167 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8168 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8169 "interface for the group");
8173 if_addr = wpa_s->pending_interface_addr;
8175 if_addr = wpa_s->own_addr;
8177 wpa_s->p2p_nfc_tag_enabled = enabled;
8179 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8180 struct hostapd_data *hapd;
8181 if (iface->ap_iface == NULL)
8183 hapd = iface->ap_iface->bss[0];
8184 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8185 hapd->conf->wps_nfc_dh_pubkey =
8186 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8187 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8188 hapd->conf->wps_nfc_dh_privkey =
8189 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8190 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8191 hapd->conf->wps_nfc_dev_pw =
8192 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8193 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8195 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8196 wpa_dbg(iface, MSG_DEBUG,
8197 "P2P: Failed to enable NFC Tag for GO");
8200 p2p_set_authorized_oob_dev_pw_id(
8201 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8207 #endif /* CONFIG_WPS_NFC */
8210 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8211 struct wpa_used_freq_data *freqs,
8214 u8 curr_chan, cand, chan;
8217 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8218 for (i = 0, cand = 0; i < num; i++) {
8219 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8220 if (curr_chan == chan) {
8225 if (chan == 1 || chan == 6 || chan == 11)
8230 wpa_dbg(wpa_s, MSG_DEBUG,
8231 "P2P: Update Listen channel to %u based on operating channel",
8233 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8238 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8240 struct wpa_used_freq_data *freqs;
8241 unsigned int num = wpa_s->num_multichan_concurrent;
8243 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8247 * If possible, optimize the Listen channel to be a channel that is
8248 * already used by one of the other interfaces.
8250 if (!wpa_s->conf->p2p_optimize_listen_chan)
8253 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8256 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8260 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8262 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
8267 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8269 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8270 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8271 "the management interface is being removed");
8272 wpas_p2p_deinit_global(wpa_s->global);
8277 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8279 if (wpa_s->ap_iface->bss)
8280 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8281 wpas_p2p_group_deinit(wpa_s);