3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_common.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/wpa_ctrl.h"
16 #include "wps/wps_i.h"
18 #include "ap/hostapd.h"
19 #include "ap/ap_config.h"
20 #include "ap/p2p_hostapd.h"
21 #include "eapol_supp/eapol_supp_sm.h"
22 #include "rsn_supp/wpa.h"
23 #include "wpa_supplicant_i.h"
26 #include "config_ssid.h"
31 #include "offchannel.h"
32 #include "wps_supplicant.h"
33 #include "p2p_supplicant.h"
37 * How many times to try to scan to find the GO before giving up on join
40 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
42 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
44 #ifndef P2P_MAX_CLIENT_IDLE
46 * How many seconds to try to reconnect to the GO when connection in P2P client
49 #define P2P_MAX_CLIENT_IDLE 10
50 #endif /* P2P_MAX_CLIENT_IDLE */
52 #ifndef P2P_MAX_INITIAL_CONN_WAIT
54 * How many seconds to wait for initial 4-way handshake to get completed after
55 * WPS provisioning step.
57 #define P2P_MAX_INITIAL_CONN_WAIT 10
58 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
60 #ifndef P2P_CONCURRENT_SEARCH_DELAY
61 #define P2P_CONCURRENT_SEARCH_DELAY 500
62 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
64 enum p2p_group_removal_reason {
65 P2P_GROUP_REMOVAL_UNKNOWN,
66 P2P_GROUP_REMOVAL_SILENT,
67 P2P_GROUP_REMOVAL_FORMATION_FAILED,
68 P2P_GROUP_REMOVAL_REQUESTED,
69 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
70 P2P_GROUP_REMOVAL_UNAVAILABLE,
71 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
75 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
76 static struct wpa_supplicant *
77 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
79 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
80 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
81 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
82 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
83 const u8 *dev_addr, enum p2p_wps_method wps_method,
85 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
87 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
88 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
89 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
90 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
91 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
95 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
96 struct wpa_scan_results *scan_res)
100 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
103 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
104 (int) scan_res->num);
106 for (i = 0; i < scan_res->num; i++) {
107 struct wpa_scan_res *bss = scan_res->res[i];
108 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
109 bss->freq, bss->level,
110 (const u8 *) (bss + 1),
115 p2p_scan_res_handled(wpa_s->global->p2p);
119 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
120 unsigned int num_req_dev_types,
121 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
123 struct wpa_supplicant *wpa_s = ctx;
124 struct wpa_supplicant *ifs;
125 struct wpa_driver_scan_params params;
127 struct wpabuf *wps_ie, *ies;
128 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
131 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
134 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
135 if (ifs->sta_scan_pending &&
136 wpas_p2p_in_progress(wpa_s) == 2) {
137 wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
138 "pending station mode scan to be "
139 "completed on interface %s", ifs->ifname);
140 wpa_s->global->p2p_cb_on_scan_complete = 1;
141 wpa_supplicant_req_scan(ifs, 0, 0);
146 os_memset(¶ms, 0, sizeof(params));
148 /* P2P Wildcard SSID */
149 params.num_ssids = 1;
150 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
151 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
153 wpa_s->wps->dev.p2p = 1;
154 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
155 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
156 num_req_dev_types, req_dev_types);
160 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
161 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
166 wpabuf_put_buf(ies, wps_ie);
169 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
171 params.p2p_probe = 1;
172 params.extra_ies = wpabuf_head(ies);
173 params.extra_ies_len = wpabuf_len(ies);
176 case P2P_SCAN_SOCIAL:
177 params.freqs = social_channels;
181 case P2P_SCAN_SOCIAL_PLUS_ONE:
182 social_channels[3] = freq;
183 params.freqs = social_channels;
187 ret = wpa_drv_scan(wpa_s, ¶ms);
192 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
194 ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
195 wpa_s->global->p2p_cb_on_scan_complete = 1;
201 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
207 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
209 switch (p2p_group_interface) {
210 case P2P_GROUP_INTERFACE_PENDING:
211 return WPA_IF_P2P_GROUP;
212 case P2P_GROUP_INTERFACE_GO:
213 return WPA_IF_P2P_GO;
214 case P2P_GROUP_INTERFACE_CLIENT:
215 return WPA_IF_P2P_CLIENT;
218 return WPA_IF_P2P_GROUP;
222 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
224 size_t ssid_len, int *go)
228 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
229 for (s = wpa_s->conf->ssid; s; s = s->next) {
230 if (s->disabled != 0 || !s->p2p_group ||
231 s->ssid_len != ssid_len ||
232 os_memcmp(ssid, s->ssid, ssid_len) != 0)
234 if (s->mode == WPAS_MODE_P2P_GO &&
235 s != wpa_s->current_ssid)
238 *go = s->mode == WPAS_MODE_P2P_GO;
247 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
248 enum p2p_group_removal_reason removal_reason)
250 struct wpa_ssid *ssid;
254 ssid = wpa_s->current_ssid;
257 * The current SSID was not known, but there may still be a
258 * pending P2P group interface waiting for provisioning or a
259 * P2P group that is trying to reconnect.
261 ssid = wpa_s->conf->ssid;
263 if (ssid->p2p_group && ssid->disabled != 2)
268 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
270 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
275 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
277 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
278 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
279 wpa_s->reassociate = 0;
280 wpa_s->disconnected = 1;
281 wpa_supplicant_deauthenticate(wpa_s,
282 WLAN_REASON_DEAUTH_LEAVING);
286 if (wpa_s->cross_connect_in_use) {
287 wpa_s->cross_connect_in_use = 0;
288 wpa_msg(wpa_s->parent, MSG_INFO,
289 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
290 wpa_s->ifname, wpa_s->cross_connect_uplink);
292 switch (removal_reason) {
293 case P2P_GROUP_REMOVAL_REQUESTED:
294 reason = " reason=REQUESTED";
296 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
297 reason = " reason=FORMATION_FAILED";
299 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
300 reason = " reason=IDLE";
302 case P2P_GROUP_REMOVAL_UNAVAILABLE:
303 reason = " reason=UNAVAILABLE";
305 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
306 reason = " reason=GO_ENDING_SESSION";
312 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
313 wpa_msg(wpa_s->parent, MSG_INFO,
314 P2P_EVENT_GROUP_REMOVED "%s %s%s",
315 wpa_s->ifname, gtype, reason);
318 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
319 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
321 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
322 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
324 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
325 struct wpa_global *global;
327 enum wpa_driver_if_type type;
328 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
330 global = wpa_s->global;
331 ifname = os_strdup(wpa_s->ifname);
332 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
333 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
334 wpa_s = global->ifaces;
336 wpa_drv_if_remove(wpa_s, type, ifname);
341 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
342 if (ssid && (ssid->p2p_group ||
343 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
344 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
346 if (ssid == wpa_s->current_ssid) {
347 wpa_sm_set_config(wpa_s->wpa, NULL);
348 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
349 wpa_s->current_ssid = NULL;
352 * Networks objects created during any P2P activities are not
353 * exposed out as they might/will confuse certain non-P2P aware
354 * applications since these network objects won't behave like
357 * Likewise, we don't send out network removed signals for such
360 wpa_config_remove_network(wpa_s->conf, id);
361 wpa_supplicant_clear_status(wpa_s);
362 wpa_supplicant_cancel_sched_scan(wpa_s);
363 wpa_s->sta_scan_pending = 0;
365 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
369 wpa_supplicant_ap_deinit(wpa_s);
371 wpa_drv_deinit_p2p_cli(wpa_s);
377 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
379 const u8 *ssid, size_t ssid_len)
387 if (wpa_s->go_params)
388 bssid = wpa_s->go_params->peer_interface_addr;
390 bssid = wpa_s->bssid;
392 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
394 u8 iface_addr[ETH_ALEN];
395 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
397 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
400 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
401 "group is persistent - BSS " MACSTR " not found",
406 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
408 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
409 "group is persistent - BSS " MACSTR
410 " did not include P2P IE", MAC2STR(bssid));
411 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
412 (u8 *) (bss + 1), bss->ie_len);
413 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
414 ((u8 *) bss + 1) + bss->ie_len,
419 group_capab = p2p_get_group_capab(p2p);
420 addr = p2p_get_go_dev_addr(p2p);
421 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
422 "group_capab=0x%x", group_capab);
424 os_memcpy(go_dev_addr, addr, ETH_ALEN);
425 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
428 os_memset(go_dev_addr, 0, ETH_ALEN);
431 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
432 "go_dev_addr=" MACSTR,
433 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
435 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
439 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
440 struct wpa_ssid *ssid,
441 const u8 *go_dev_addr)
446 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
447 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
448 for (s = wpa_s->conf->ssid; s; s = s->next) {
449 if (s->disabled == 2 &&
450 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
451 s->ssid_len == ssid->ssid_len &&
452 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
457 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
459 if (ssid->passphrase && !s->passphrase)
461 else if (ssid->passphrase && s->passphrase &&
462 os_strcmp(ssid->passphrase, s->passphrase) != 0)
465 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
468 s = wpa_config_add_network(wpa_s->conf);
473 * Instead of network_added we emit persistent_group_added
474 * notification. Also to keep the defense checks in
475 * persistent_group obj registration method, we set the
476 * relevant flags in s to designate it as a persistent group.
479 s->p2p_persistent_group = 1;
480 wpas_notify_persistent_group_added(wpa_s, s);
481 wpa_config_set_network_defaults(s);
485 s->p2p_persistent_group = 1;
488 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
489 s->mode = ssid->mode;
490 s->auth_alg = WPA_AUTH_ALG_OPEN;
491 s->key_mgmt = WPA_KEY_MGMT_PSK;
492 s->proto = WPA_PROTO_RSN;
493 s->pairwise_cipher = WPA_CIPHER_CCMP;
495 if (ssid->passphrase) {
496 os_free(s->passphrase);
497 s->passphrase = os_strdup(ssid->passphrase);
501 os_memcpy(s->psk, ssid->psk, 32);
503 if (s->passphrase && !s->psk_set)
504 wpa_config_update_psk(s);
505 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
507 s->ssid = os_malloc(ssid->ssid_len);
510 s->ssid_len = ssid->ssid_len;
511 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
514 #ifndef CONFIG_NO_CONFIG_WRITE
515 if (changed && wpa_s->conf->update_config &&
516 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
517 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
519 #endif /* CONFIG_NO_CONFIG_WRITE */
525 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
528 struct wpa_ssid *ssid, *s;
533 ssid = wpa_s->current_ssid;
534 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
535 !ssid->p2p_persistent_group)
538 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
539 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
542 if (s->ssid_len == ssid->ssid_len &&
543 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
550 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
551 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
555 if (i == s->num_p2p_clients - 1)
556 return; /* already the most recent entry */
558 /* move the entry to mark it most recent */
559 os_memmove(s->p2p_client_list + i * ETH_ALEN,
560 s->p2p_client_list + (i + 1) * ETH_ALEN,
561 (s->num_p2p_clients - i - 1) * ETH_ALEN);
562 os_memcpy(s->p2p_client_list +
563 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
568 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
569 n = os_realloc_array(s->p2p_client_list,
570 s->num_p2p_clients + 1, ETH_ALEN);
573 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
574 s->p2p_client_list = n;
575 s->num_p2p_clients++;
577 /* Not enough room for an additional entry - drop the oldest
579 os_memmove(s->p2p_client_list,
580 s->p2p_client_list + ETH_ALEN,
581 (s->num_p2p_clients - 1) * ETH_ALEN);
582 os_memcpy(s->p2p_client_list +
583 (s->num_p2p_clients - 1) * ETH_ALEN,
587 #ifndef CONFIG_NO_CONFIG_WRITE
588 if (wpa_s->parent->conf->update_config &&
589 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
590 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
591 #endif /* CONFIG_NO_CONFIG_WRITE */
595 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
598 struct wpa_ssid *ssid;
599 const char *ssid_txt;
602 u8 go_dev_addr[ETH_ALEN];
606 * This callback is likely called for the main interface. Update wpa_s
607 * to use the group interface if a new interface was created for the
610 if (wpa_s->global->p2p_group_formation)
611 wpa_s = wpa_s->global->p2p_group_formation;
612 wpa_s->global->p2p_group_formation = NULL;
613 wpa_s->p2p_in_provisioning = 0;
616 wpa_msg(wpa_s->parent, MSG_INFO,
617 P2P_EVENT_GROUP_FORMATION_FAILURE);
618 wpas_p2p_group_delete(wpa_s,
619 P2P_GROUP_REMOVAL_FORMATION_FAILED);
623 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
625 ssid = wpa_s->current_ssid;
626 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
627 ssid->mode = WPAS_MODE_P2P_GO;
628 p2p_group_notif_formation_done(wpa_s->p2p_group);
629 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
634 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
635 client = ssid->mode == WPAS_MODE_INFRA;
636 if (ssid->mode == WPAS_MODE_P2P_GO) {
637 persistent = ssid->p2p_persistent_group;
638 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
641 persistent = wpas_p2p_persistent_group(wpa_s,
647 client = wpa_s->p2p_group_interface ==
648 P2P_GROUP_INTERFACE_CLIENT;
649 os_memset(go_dev_addr, 0, ETH_ALEN);
652 wpa_s->show_group_started = 0;
655 * Indicate event only after successfully completed 4-way
656 * handshake, i.e., when the interface is ready for data
659 wpa_s->show_group_started = 1;
660 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
662 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
663 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
664 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
666 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
667 MAC2STR(go_dev_addr),
668 persistent ? " [PERSISTENT]" : "");
669 wpas_p2p_cross_connect_setup(wpa_s);
670 wpas_p2p_set_group_idle_timeout(wpa_s);
672 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
673 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
674 "go_dev_addr=" MACSTR "%s",
675 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
676 ssid && ssid->passphrase ? ssid->passphrase : "",
677 MAC2STR(go_dev_addr),
678 persistent ? " [PERSISTENT]" : "");
679 wpas_p2p_cross_connect_setup(wpa_s);
680 wpas_p2p_set_group_idle_timeout(wpa_s);
684 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
686 if (network_id < 0 && ssid)
687 network_id = ssid->id;
689 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
693 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
695 const u8 *dst, const u8 *src,
697 const u8 *data, size_t data_len,
698 enum offchannel_send_action_result
701 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
703 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
705 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
709 case OFFCHANNEL_SEND_ACTION_SUCCESS:
710 res = P2P_SEND_ACTION_SUCCESS;
712 case OFFCHANNEL_SEND_ACTION_NO_ACK:
713 res = P2P_SEND_ACTION_NO_ACK;
715 case OFFCHANNEL_SEND_ACTION_FAILED:
716 res = P2P_SEND_ACTION_FAILED;
720 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
722 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
723 wpa_s->pending_pd_before_join &&
724 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
725 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
726 wpa_s->pending_pd_before_join = 0;
727 if (wpa_s->p2p_fallback_to_go_neg) {
728 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
729 "during p2p_connect-auto");
730 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
734 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
735 "join-existing-group operation (no ACK for PD "
737 wpas_p2p_join_start(wpa_s);
742 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
743 const u8 *src, const u8 *bssid, const u8 *buf,
744 size_t len, unsigned int wait_time)
746 struct wpa_supplicant *wpa_s = ctx;
747 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
749 wpas_p2p_send_action_tx_status, 1);
753 static void wpas_send_action_done(void *ctx)
755 struct wpa_supplicant *wpa_s = ctx;
756 offchannel_send_action_done(wpa_s);
760 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
761 struct p2p_go_neg_results *params)
763 if (wpa_s->go_params == NULL) {
764 wpa_s->go_params = os_malloc(sizeof(*params));
765 if (wpa_s->go_params == NULL)
768 os_memcpy(wpa_s->go_params, params, sizeof(*params));
773 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
774 struct p2p_go_neg_results *res)
776 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
777 MAC2STR(res->peer_interface_addr));
778 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
779 res->ssid, res->ssid_len);
780 wpa_supplicant_ap_deinit(wpa_s);
781 wpas_copy_go_neg_results(wpa_s, res);
782 if (res->wps_method == WPS_PBC)
783 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
785 u16 dev_pw_id = DEV_PW_DEFAULT;
786 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
787 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
788 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
789 wpa_s->p2p_pin, 1, dev_pw_id);
794 static void p2p_go_configured(void *ctx, void *data)
796 struct wpa_supplicant *wpa_s = ctx;
797 struct p2p_go_neg_results *params = data;
798 struct wpa_ssid *ssid;
801 ssid = wpa_s->current_ssid;
802 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
803 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
804 if (wpa_s->global->p2p_group_formation == wpa_s)
805 wpa_s->global->p2p_group_formation = NULL;
806 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
807 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
808 "go_dev_addr=" MACSTR "%s",
810 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
812 params->passphrase ? params->passphrase : "",
813 MAC2STR(wpa_s->global->p2p_dev_addr),
814 params->persistent_group ? " [PERSISTENT]" : "");
816 if (params->persistent_group)
817 network_id = wpas_p2p_store_persistent_group(
819 wpa_s->global->p2p_dev_addr);
821 network_id = ssid->id;
822 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
823 wpas_p2p_cross_connect_setup(wpa_s);
824 wpas_p2p_set_group_idle_timeout(wpa_s);
828 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
829 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
830 params->peer_interface_addr)) {
831 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
835 if (params->wps_method == WPS_PBC)
836 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
837 params->peer_device_addr);
838 else if (wpa_s->p2p_pin[0])
839 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
840 wpa_s->p2p_pin, NULL, 0, 0);
841 os_free(wpa_s->go_params);
842 wpa_s->go_params = NULL;
846 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
847 struct p2p_go_neg_results *params,
850 struct wpa_ssid *ssid;
852 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
853 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
854 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
859 ssid = wpa_config_add_network(wpa_s->conf);
861 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
865 wpa_s->show_group_started = 0;
867 wpa_config_set_network_defaults(ssid);
870 ssid->p2p_persistent_group = params->persistent_group;
871 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
873 ssid->frequency = params->freq;
874 ssid->ht40 = params->ht40;
875 ssid->ssid = os_zalloc(params->ssid_len + 1);
877 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
878 ssid->ssid_len = params->ssid_len;
880 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
881 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
882 ssid->proto = WPA_PROTO_RSN;
883 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
884 ssid->passphrase = os_strdup(params->passphrase);
885 if (ssid->passphrase == NULL) {
886 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to copy passphrase for "
888 wpa_config_remove_network(wpa_s->conf, ssid->id);
891 wpa_config_update_psk(ssid);
892 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
894 wpa_s->ap_configured_cb = p2p_go_configured;
895 wpa_s->ap_configured_cb_ctx = wpa_s;
896 wpa_s->ap_configured_cb_data = wpa_s->go_params;
897 wpa_s->connect_without_scan = ssid;
898 wpa_s->reassociate = 1;
899 wpa_s->disconnected = 0;
900 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
902 wpa_supplicant_req_scan(wpa_s, 0, 0);
906 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
907 const struct wpa_supplicant *src)
909 struct wpa_config *d;
910 const struct wpa_config *s;
915 #define C(n) if (s->n) d->n = os_strdup(s->n)
924 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
925 os_memcpy(d->sec_device_type, s->sec_device_type,
926 sizeof(d->sec_device_type));
927 d->num_sec_device_types = s->num_sec_device_types;
929 d->p2p_group_idle = s->p2p_group_idle;
930 d->p2p_intra_bss = s->p2p_intra_bss;
931 d->persistent_reconnect = s->persistent_reconnect;
932 d->max_num_sta = s->max_num_sta;
933 d->pbc_in_m1 = s->pbc_in_m1;
937 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
938 enum wpa_driver_if_type type)
940 char ifname[120], force_ifname[120];
942 if (wpa_s->pending_interface_name[0]) {
943 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
944 "- skip creation of a new one");
945 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
946 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
947 "unknown?! ifname='%s'",
948 wpa_s->pending_interface_name);
954 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
955 wpa_s->p2p_group_idx);
956 if (os_strlen(ifname) >= IFNAMSIZ &&
957 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
958 /* Try to avoid going over the IFNAMSIZ length limit */
959 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
960 wpa_s->p2p_group_idx);
962 force_ifname[0] = '\0';
964 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
966 wpa_s->p2p_group_idx++;
968 wpa_s->pending_interface_type = type;
969 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
970 wpa_s->pending_interface_addr, NULL) < 0) {
971 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
976 if (force_ifname[0]) {
977 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
979 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
980 sizeof(wpa_s->pending_interface_name));
982 os_strlcpy(wpa_s->pending_interface_name, ifname,
983 sizeof(wpa_s->pending_interface_name));
984 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
985 MACSTR, wpa_s->pending_interface_name,
986 MAC2STR(wpa_s->pending_interface_addr));
992 static void wpas_p2p_remove_pending_group_interface(
993 struct wpa_supplicant *wpa_s)
995 if (!wpa_s->pending_interface_name[0] ||
996 is_zero_ether_addr(wpa_s->pending_interface_addr))
997 return; /* No pending virtual interface */
999 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1000 wpa_s->pending_interface_name);
1001 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1002 wpa_s->pending_interface_name);
1003 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1004 wpa_s->pending_interface_name[0] = '\0';
1008 static struct wpa_supplicant *
1009 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1011 struct wpa_interface iface;
1012 struct wpa_supplicant *group_wpa_s;
1014 if (!wpa_s->pending_interface_name[0]) {
1015 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1016 if (!wpas_p2p_create_iface(wpa_s))
1019 * Something has forced us to remove the pending interface; try
1020 * to create a new one and hope for the best that we will get
1021 * the same local address.
1023 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1024 WPA_IF_P2P_CLIENT) < 0)
1028 os_memset(&iface, 0, sizeof(iface));
1029 iface.ifname = wpa_s->pending_interface_name;
1030 iface.driver = wpa_s->driver->name;
1031 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1032 iface.driver_param = wpa_s->conf->driver_param;
1033 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1034 if (group_wpa_s == NULL) {
1035 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1036 "wpa_supplicant interface");
1039 wpa_s->pending_interface_name[0] = '\0';
1040 group_wpa_s->parent = wpa_s;
1041 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1042 P2P_GROUP_INTERFACE_CLIENT;
1043 wpa_s->global->p2p_group_formation = group_wpa_s;
1045 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1051 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1054 struct wpa_supplicant *wpa_s = eloop_ctx;
1055 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1056 if (wpa_s->global->p2p)
1057 p2p_group_formation_failed(wpa_s->global->p2p);
1058 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1059 wpa_drv_p2p_group_formation_failed(wpa_s);
1060 wpas_group_formation_completed(wpa_s, 0);
1064 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1066 struct wpa_supplicant *wpa_s = ctx;
1068 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1069 wpa_drv_cancel_remain_on_channel(wpa_s);
1070 wpa_s->off_channel_freq = 0;
1071 wpa_s->roc_waiting_drv_freq = 0;
1075 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1077 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1078 wpas_p2p_remove_pending_group_interface(wpa_s);
1082 if (wpa_s->p2p_go_ht40)
1085 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1086 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1088 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1089 struct wpa_ssid *ssid;
1090 ssid = wpa_config_get_network(wpa_s->conf,
1091 wpa_s->p2p_persistent_id);
1092 if (ssid && ssid->disabled == 2 &&
1093 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1094 size_t len = os_strlen(ssid->passphrase);
1095 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1096 "on requested persistent group");
1097 os_memcpy(res->passphrase, ssid->passphrase, len);
1098 res->passphrase[len] = '\0';
1102 if (wpa_s->create_p2p_iface) {
1103 struct wpa_supplicant *group_wpa_s =
1104 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1105 if (group_wpa_s == NULL) {
1106 wpas_p2p_remove_pending_group_interface(wpa_s);
1109 if (group_wpa_s != wpa_s) {
1110 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1111 sizeof(group_wpa_s->p2p_pin));
1112 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1114 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1115 wpa_s->pending_interface_name[0] = '\0';
1116 group_wpa_s->p2p_in_provisioning = 1;
1119 wpas_start_wps_go(group_wpa_s, res, 1);
1121 wpas_start_wps_enrollee(group_wpa_s, res);
1123 wpa_s->p2p_in_provisioning = 1;
1124 wpa_s->global->p2p_group_formation = wpa_s;
1127 wpas_start_wps_go(wpa_s, res, 1);
1129 wpas_start_wps_enrollee(ctx, res);
1132 wpa_s->p2p_long_listen = 0;
1133 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1135 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1136 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1137 (res->peer_config_timeout % 100) * 10000,
1138 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1142 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1144 struct wpa_supplicant *wpa_s = ctx;
1145 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1146 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1148 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1152 void wpas_dev_found(void *ctx, const u8 *addr,
1153 const struct p2p_peer_info *info,
1156 #ifndef CONFIG_NO_STDOUT_DEBUG
1157 struct wpa_supplicant *wpa_s = ctx;
1158 char devtype[WPS_DEV_TYPE_BUFSIZE];
1160 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1161 " p2p_dev_addr=" MACSTR
1162 " pri_dev_type=%s name='%s' config_methods=0x%x "
1163 "dev_capab=0x%x group_capab=0x%x",
1164 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1165 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1167 info->device_name, info->config_methods,
1168 info->dev_capab, info->group_capab);
1169 #endif /* CONFIG_NO_STDOUT_DEBUG */
1171 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1175 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1177 struct wpa_supplicant *wpa_s = ctx;
1179 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1180 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1182 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1186 static int wpas_start_listen(void *ctx, unsigned int freq,
1187 unsigned int duration,
1188 const struct wpabuf *probe_resp_ie)
1190 struct wpa_supplicant *wpa_s = ctx;
1192 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1194 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1195 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1196 "report received Probe Request frames");
1200 wpa_s->pending_listen_freq = freq;
1201 wpa_s->pending_listen_duration = duration;
1203 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1204 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1205 "to remain on channel (%u MHz) for Listen "
1207 wpa_s->pending_listen_freq = 0;
1210 wpa_s->off_channel_freq = 0;
1211 wpa_s->roc_waiting_drv_freq = freq;
1217 static void wpas_stop_listen(void *ctx)
1219 struct wpa_supplicant *wpa_s = ctx;
1220 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1221 wpa_drv_cancel_remain_on_channel(wpa_s);
1222 wpa_s->off_channel_freq = 0;
1223 wpa_s->roc_waiting_drv_freq = 0;
1225 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1226 wpa_drv_probe_req_report(wpa_s, 0);
1230 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1232 struct wpa_supplicant *wpa_s = ctx;
1233 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1237 static struct p2p_srv_bonjour *
1238 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1239 const struct wpabuf *query)
1241 struct p2p_srv_bonjour *bsrv;
1244 len = wpabuf_len(query);
1245 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1246 struct p2p_srv_bonjour, list) {
1247 if (len == wpabuf_len(bsrv->query) &&
1248 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1256 static struct p2p_srv_upnp *
1257 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1258 const char *service)
1260 struct p2p_srv_upnp *usrv;
1262 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1263 struct p2p_srv_upnp, list) {
1264 if (version == usrv->version &&
1265 os_strcmp(service, usrv->service) == 0)
1272 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1277 if (wpabuf_tailroom(resp) < 5)
1280 /* Length (to be filled) */
1281 len_pos = wpabuf_put(resp, 2);
1282 wpabuf_put_u8(resp, srv_proto);
1283 wpabuf_put_u8(resp, srv_trans_id);
1285 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1286 /* Response Data: empty */
1287 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1291 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1292 struct wpabuf *resp, u8 srv_trans_id)
1294 struct p2p_srv_bonjour *bsrv;
1297 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1299 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1300 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1304 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1305 struct p2p_srv_bonjour, list) {
1306 if (wpabuf_tailroom(resp) <
1307 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1309 /* Length (to be filled) */
1310 len_pos = wpabuf_put(resp, 2);
1311 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1312 wpabuf_put_u8(resp, srv_trans_id);
1314 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1315 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1316 wpabuf_head(bsrv->resp),
1317 wpabuf_len(bsrv->resp));
1319 wpabuf_put_buf(resp, bsrv->query); /* Key */
1320 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1321 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1327 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1328 struct wpabuf *resp, u8 srv_trans_id,
1329 const u8 *query, size_t query_len)
1331 struct p2p_srv_bonjour *bsrv;
1335 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1337 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1338 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1339 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1344 if (query_len == 0) {
1345 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1349 if (wpabuf_tailroom(resp) < 5)
1351 /* Length (to be filled) */
1352 len_pos = wpabuf_put(resp, 2);
1353 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1354 wpabuf_put_u8(resp, srv_trans_id);
1356 wpabuf_set(&buf, query, query_len);
1357 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1359 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1363 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1364 /* Response Data: empty */
1365 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1371 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1372 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1373 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1375 if (wpabuf_tailroom(resp) >=
1376 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1378 wpabuf_put_buf(resp, bsrv->query); /* Key */
1379 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1381 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1385 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1386 struct wpabuf *resp, u8 srv_trans_id)
1388 struct p2p_srv_upnp *usrv;
1391 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1393 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1394 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1398 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1399 struct p2p_srv_upnp, list) {
1400 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1403 /* Length (to be filled) */
1404 len_pos = wpabuf_put(resp, 2);
1405 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1406 wpabuf_put_u8(resp, srv_trans_id);
1409 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1411 wpabuf_put_u8(resp, usrv->version);
1412 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1414 wpabuf_put_str(resp, usrv->service);
1415 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1421 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1422 struct wpabuf *resp, u8 srv_trans_id,
1423 const u8 *query, size_t query_len)
1425 struct p2p_srv_upnp *usrv;
1431 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1434 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1435 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1436 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1441 if (query_len == 0) {
1442 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1446 if (wpabuf_tailroom(resp) < 5)
1449 /* Length (to be filled) */
1450 len_pos = wpabuf_put(resp, 2);
1451 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1452 wpabuf_put_u8(resp, srv_trans_id);
1455 str = os_malloc(query_len);
1458 os_memcpy(str, query + 1, query_len - 1);
1459 str[query_len - 1] = '\0';
1461 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1462 struct p2p_srv_upnp, list) {
1463 if (version != usrv->version)
1466 if (os_strcmp(str, "ssdp:all") != 0 &&
1467 os_strstr(usrv->service, str) == NULL)
1470 if (wpabuf_tailroom(resp) < 2)
1474 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1476 wpabuf_put_u8(resp, version);
1478 wpabuf_put_u8(resp, ',');
1482 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1484 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1486 wpabuf_put_str(resp, usrv->service);
1491 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1494 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1495 /* Response Data: empty */
1498 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1502 #ifdef CONFIG_WIFI_DISPLAY
1503 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1504 struct wpabuf *resp, u8 srv_trans_id,
1505 const u8 *query, size_t query_len)
1511 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1513 if (!wpa_s->global->wifi_display) {
1514 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1515 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1520 if (query_len < 1) {
1521 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1526 if (wpabuf_tailroom(resp) < 5)
1531 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1533 /* TODO: role specific handling */
1535 /* Length (to be filled) */
1536 len_pos = wpabuf_put(resp, 2);
1537 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1538 wpabuf_put_u8(resp, srv_trans_id);
1539 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1541 while (pos < query + query_len) {
1542 if (*pos < MAX_WFD_SUBELEMS &&
1543 wpa_s->global->wfd_subelem[*pos] &&
1544 wpabuf_tailroom(resp) >=
1545 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1546 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1547 "subelement %u", *pos);
1548 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1553 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1555 #endif /* CONFIG_WIFI_DISPLAY */
1558 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1559 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1561 struct wpa_supplicant *wpa_s = ctx;
1562 const u8 *pos = tlvs;
1563 const u8 *end = tlvs + tlvs_len;
1566 struct wpabuf *resp;
1567 u8 srv_proto, srv_trans_id;
1571 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1573 buf_len = 2 * tlvs_len + 1;
1574 buf = os_malloc(buf_len);
1576 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1577 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1579 freq, MAC2STR(sa), dialog_token, update_indic,
1584 if (wpa_s->p2p_sd_over_ctrl_iface) {
1585 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1586 update_indic, tlvs, tlvs_len);
1587 return; /* to be processed by an external program */
1590 resp = wpabuf_alloc(10000);
1594 while (pos + 1 < end) {
1595 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1596 slen = WPA_GET_LE16(pos);
1598 if (pos + slen > end || slen < 2) {
1599 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1604 tlv_end = pos + slen;
1607 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1609 srv_trans_id = *pos++;
1610 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1613 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1614 pos, tlv_end - pos);
1617 if (wpa_s->force_long_sd) {
1618 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1620 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1621 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1625 switch (srv_proto) {
1626 case P2P_SERV_ALL_SERVICES:
1627 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1628 "for all services");
1629 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1630 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1631 wpa_printf(MSG_DEBUG, "P2P: No service "
1632 "discovery protocols available");
1633 wpas_sd_add_proto_not_avail(
1634 resp, P2P_SERV_ALL_SERVICES,
1638 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1639 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1641 case P2P_SERV_BONJOUR:
1642 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1643 pos, tlv_end - pos);
1646 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1647 pos, tlv_end - pos);
1649 #ifdef CONFIG_WIFI_DISPLAY
1650 case P2P_SERV_WIFI_DISPLAY:
1651 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1652 pos, tlv_end - pos);
1654 #endif /* CONFIG_WIFI_DISPLAY */
1656 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1657 "protocol %u", srv_proto);
1658 wpas_sd_add_proto_not_avail(resp, srv_proto,
1667 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1668 update_indic, tlvs, tlvs_len);
1670 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1676 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1677 const u8 *tlvs, size_t tlvs_len)
1679 struct wpa_supplicant *wpa_s = ctx;
1680 const u8 *pos = tlvs;
1681 const u8 *end = tlvs + tlvs_len;
1687 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1689 if (tlvs_len > 1500) {
1690 /* TODO: better way for handling this */
1691 wpa_msg_ctrl(wpa_s, MSG_INFO,
1692 P2P_EVENT_SERV_DISC_RESP MACSTR
1693 " %u <long response: %u bytes>",
1694 MAC2STR(sa), update_indic,
1695 (unsigned int) tlvs_len);
1697 buf_len = 2 * tlvs_len + 1;
1698 buf = os_malloc(buf_len);
1700 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1701 wpa_msg_ctrl(wpa_s, MSG_INFO,
1702 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1703 MAC2STR(sa), update_indic, buf);
1709 u8 srv_proto, srv_trans_id, status;
1711 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1712 slen = WPA_GET_LE16(pos);
1714 if (pos + slen > end || slen < 3) {
1715 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1719 tlv_end = pos + slen;
1722 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1724 srv_trans_id = *pos++;
1725 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1728 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1731 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1732 pos, tlv_end - pos);
1737 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1741 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1742 const struct wpabuf *tlvs)
1744 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1745 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1746 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1748 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1752 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1753 u8 version, const char *query)
1755 struct wpabuf *tlvs;
1758 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1761 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1762 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1763 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1764 wpabuf_put_u8(tlvs, version);
1765 wpabuf_put_str(tlvs, query);
1766 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1772 #ifdef CONFIG_WIFI_DISPLAY
1774 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1775 const struct wpabuf *tlvs)
1777 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1779 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1781 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1785 #define MAX_WFD_SD_SUBELEMS 20
1787 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1788 const char *subelems)
1795 len = wpabuf_put(tlvs, 2);
1796 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1797 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1799 wpabuf_put_u8(tlvs, role);
1804 if (val >= 0 && val < 256) {
1805 wpabuf_put_u8(tlvs, val);
1807 if (count == MAX_WFD_SD_SUBELEMS)
1810 pos = os_strchr(pos + 1, ',');
1816 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
1820 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
1821 const u8 *dst, const char *role)
1823 struct wpabuf *tlvs;
1825 const char *subelems;
1828 subelems = os_strchr(role, ' ');
1829 if (subelems == NULL)
1833 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
1837 if (os_strstr(role, "[source]"))
1838 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
1839 if (os_strstr(role, "[pri-sink]"))
1840 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
1841 if (os_strstr(role, "[sec-sink]"))
1842 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
1843 if (os_strstr(role, "[source+sink]"))
1844 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
1846 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
1851 #endif /* CONFIG_WIFI_DISPLAY */
1854 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
1856 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1857 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
1858 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1860 return p2p_sd_cancel_request(wpa_s->global->p2p,
1861 (void *) (uintptr_t) req);
1865 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1866 const u8 *dst, u8 dialog_token,
1867 const struct wpabuf *resp_tlvs)
1869 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1870 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1874 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1876 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1881 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1883 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1884 wpa_drv_p2p_service_update(wpa_s);
1887 if (wpa_s->global->p2p)
1888 p2p_sd_service_update(wpa_s->global->p2p);
1892 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1894 dl_list_del(&bsrv->list);
1895 wpabuf_free(bsrv->query);
1896 wpabuf_free(bsrv->resp);
1901 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1903 dl_list_del(&usrv->list);
1904 os_free(usrv->service);
1909 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1911 struct p2p_srv_bonjour *bsrv, *bn;
1912 struct p2p_srv_upnp *usrv, *un;
1914 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1915 struct p2p_srv_bonjour, list)
1916 wpas_p2p_srv_bonjour_free(bsrv);
1918 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1919 struct p2p_srv_upnp, list)
1920 wpas_p2p_srv_upnp_free(usrv);
1922 wpas_p2p_sd_service_update(wpa_s);
1926 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1927 struct wpabuf *query, struct wpabuf *resp)
1929 struct p2p_srv_bonjour *bsrv;
1931 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1934 wpabuf_free(bsrv->resp);
1939 bsrv = os_zalloc(sizeof(*bsrv));
1942 bsrv->query = query;
1944 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1946 wpas_p2p_sd_service_update(wpa_s);
1951 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1952 const struct wpabuf *query)
1954 struct p2p_srv_bonjour *bsrv;
1956 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1959 wpas_p2p_srv_bonjour_free(bsrv);
1960 wpas_p2p_sd_service_update(wpa_s);
1965 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1966 const char *service)
1968 struct p2p_srv_upnp *usrv;
1970 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1971 return 0; /* Already listed */
1972 usrv = os_zalloc(sizeof(*usrv));
1975 usrv->version = version;
1976 usrv->service = os_strdup(service);
1977 if (usrv->service == NULL) {
1981 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1983 wpas_p2p_sd_service_update(wpa_s);
1988 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1989 const char *service)
1991 struct p2p_srv_upnp *usrv;
1993 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1996 wpas_p2p_srv_upnp_free(usrv);
1997 wpas_p2p_sd_service_update(wpa_s);
2002 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2003 const u8 *peer, const char *params,
2004 unsigned int generated_pin)
2006 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
2007 MAC2STR(peer), generated_pin, params);
2011 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2012 const u8 *peer, const char *params)
2014 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2015 MAC2STR(peer), params);
2019 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2020 const u8 *dev_addr, const u8 *pri_dev_type,
2021 const char *dev_name, u16 supp_config_methods,
2022 u8 dev_capab, u8 group_capab, const u8 *group_id,
2023 size_t group_id_len)
2025 struct wpa_supplicant *wpa_s = ctx;
2026 char devtype[WPS_DEV_TYPE_BUFSIZE];
2028 u8 empty_dev_type[8];
2029 unsigned int generated_pin = 0;
2030 struct wpa_supplicant *group = NULL;
2033 for (group = wpa_s->global->ifaces; group; group = group->next)
2035 struct wpa_ssid *s = group->current_ssid;
2037 s->mode == WPAS_MODE_P2P_GO &&
2038 group_id_len - ETH_ALEN == s->ssid_len &&
2039 os_memcmp(group_id + ETH_ALEN, s->ssid,
2045 if (pri_dev_type == NULL) {
2046 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2047 pri_dev_type = empty_dev_type;
2049 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2050 " pri_dev_type=%s name='%s' config_methods=0x%x "
2051 "dev_capab=0x%x group_capab=0x%x%s%s",
2053 wps_dev_type_bin2str(pri_dev_type, devtype,
2055 dev_name, supp_config_methods, dev_capab, group_capab,
2056 group ? " group=" : "",
2057 group ? group->ifname : "");
2058 params[sizeof(params) - 1] = '\0';
2060 if (config_methods & WPS_CONFIG_DISPLAY) {
2061 generated_pin = wps_generate_pin();
2062 wpas_prov_disc_local_display(wpa_s, peer, params,
2064 } else if (config_methods & WPS_CONFIG_KEYPAD)
2065 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2066 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2067 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2068 "%s", MAC2STR(peer), params);
2070 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2071 P2P_PROV_DISC_SUCCESS,
2072 config_methods, generated_pin);
2076 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2078 struct wpa_supplicant *wpa_s = ctx;
2079 unsigned int generated_pin = 0;
2082 if (wpa_s->pending_pd_before_join &&
2083 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2084 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2085 wpa_s->pending_pd_before_join = 0;
2086 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2087 "join-existing-group operation");
2088 wpas_p2p_join_start(wpa_s);
2092 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2093 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2094 os_snprintf(params, sizeof(params), " peer_go=%d",
2095 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2099 if (config_methods & WPS_CONFIG_DISPLAY)
2100 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2101 else if (config_methods & WPS_CONFIG_KEYPAD) {
2102 generated_pin = wps_generate_pin();
2103 wpas_prov_disc_local_display(wpa_s, peer, params,
2105 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2106 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2107 "%s", MAC2STR(peer), params);
2109 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2110 P2P_PROV_DISC_SUCCESS,
2111 config_methods, generated_pin);
2115 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2116 enum p2p_prov_disc_status status)
2118 struct wpa_supplicant *wpa_s = ctx;
2120 if (wpa_s->p2p_fallback_to_go_neg) {
2121 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2122 "failed - fall back to GO Negotiation");
2123 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2127 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2128 " p2p_dev_addr=" MACSTR " status=%d",
2129 MAC2STR(peer), status);
2131 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2136 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2137 const u8 *go_dev_addr, const u8 *ssid,
2138 size_t ssid_len, int *go, u8 *group_bssid,
2139 int *force_freq, int persistent_group)
2141 struct wpa_supplicant *wpa_s = ctx;
2143 u8 cur_bssid[ETH_ALEN];
2145 struct wpa_supplicant *grp;
2147 if (!persistent_group) {
2148 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2149 " to join an active group", MAC2STR(sa));
2150 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2151 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2153 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2154 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2155 "authorized invitation");
2159 * Do not accept the invitation automatically; notify user and
2162 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2165 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2167 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2168 "running persistent group");
2170 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2174 if (!wpa_s->conf->persistent_reconnect)
2175 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2177 for (s = wpa_s->conf->ssid; s; s = s->next) {
2178 if (s->disabled == 2 &&
2179 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2180 s->ssid_len == ssid_len &&
2181 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2186 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2187 " requested reinvocation of an unknown group",
2189 return P2P_SC_FAIL_UNKNOWN_GROUP;
2192 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2194 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2195 wpa_printf(MSG_DEBUG, "P2P: The only available "
2196 "interface is already in use - reject "
2198 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2200 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2201 } else if (s->mode == WPAS_MODE_P2P_GO) {
2203 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2205 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2206 "interface address for the group");
2207 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2209 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2214 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2215 wpa_s->assoc_freq) {
2216 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2217 "the channel we are already using");
2218 *force_freq = wpa_s->assoc_freq;
2221 res = wpa_drv_shared_freq(wpa_s);
2223 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2224 "with the channel we are already using on a "
2225 "shared interface");
2229 return P2P_SC_SUCCESS;
2233 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2234 const u8 *ssid, size_t ssid_len,
2235 const u8 *go_dev_addr, u8 status,
2238 struct wpa_supplicant *wpa_s = ctx;
2241 for (s = wpa_s->conf->ssid; s; s = s->next) {
2242 if (s->disabled == 2 &&
2243 s->ssid_len == ssid_len &&
2244 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2248 if (status == P2P_SC_SUCCESS) {
2249 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2250 " was accepted; op_freq=%d MHz",
2251 MAC2STR(sa), op_freq);
2253 int go = s->mode == WPAS_MODE_P2P_GO;
2254 wpas_p2p_group_add_persistent(
2255 wpa_s, s, go, go ? op_freq : 0, 0);
2257 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2258 wpa_s->p2p_wps_method, 0);
2263 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2264 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2265 " was rejected (status %u)", MAC2STR(sa), status);
2271 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2272 "sa=" MACSTR " go_dev_addr=" MACSTR
2273 " bssid=" MACSTR " unknown-network",
2274 MAC2STR(sa), MAC2STR(go_dev_addr),
2277 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2278 "sa=" MACSTR " go_dev_addr=" MACSTR
2280 MAC2STR(sa), MAC2STR(go_dev_addr));
2285 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2286 " persistent=%d", MAC2STR(sa), s->id);
2290 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2292 struct wpa_supplicant *wpa_s = ctx;
2293 struct wpa_ssid *ssid;
2296 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2297 "status=%d " MACSTR,
2298 status, MAC2STR(bssid));
2300 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2301 "status=%d ", status);
2303 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2305 if (wpa_s->pending_invite_ssid_id == -1)
2306 return; /* Invitation to active group */
2308 if (status != P2P_SC_SUCCESS) {
2309 wpas_p2p_remove_pending_group_interface(wpa_s);
2313 ssid = wpa_config_get_network(wpa_s->conf,
2314 wpa_s->pending_invite_ssid_id);
2316 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2317 "data matching with invitation");
2322 * The peer could have missed our ctrl::ack frame for Invitation
2323 * Response and continue retransmitting the frame. To reduce the
2324 * likelihood of the peer not getting successful TX status for the
2325 * Invitation Response frame, wait a short time here before starting
2326 * the persistent group so that we will remain on the current channel to
2327 * acknowledge any possible retransmission from the peer.
2329 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2330 "starting persistent group");
2333 wpas_p2p_group_add_persistent(wpa_s, ssid,
2334 ssid->mode == WPAS_MODE_P2P_GO,
2335 wpa_s->p2p_persistent_go_freq,
2336 wpa_s->p2p_go_ht40);
2340 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2345 if (global->p2p_disallow_freq == NULL)
2348 for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2349 if (freq >= global->p2p_disallow_freq[i].min &&
2350 freq <= global->p2p_disallow_freq[i].max)
2358 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2360 reg->channel[reg->channels] = chan;
2365 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2366 struct p2p_channels *chan)
2370 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2373 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2374 chan->reg_class[cla].reg_class = 81;
2375 chan->reg_class[cla].channels = 0;
2376 for (i = 0; i < 11; i++) {
2377 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2378 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2380 if (chan->reg_class[cla].channels)
2383 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2386 /* Operating class 115 - 5 GHz, channels 36-48 */
2387 chan->reg_class[cla].reg_class = 115;
2388 chan->reg_class[cla].channels = 0;
2389 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2390 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2391 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2392 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2393 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2394 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2395 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2396 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2397 if (chan->reg_class[cla].channels)
2400 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2403 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2404 chan->reg_class[cla].reg_class = 124;
2405 chan->reg_class[cla].channels = 0;
2406 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2407 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2408 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2409 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2410 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2411 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2412 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2413 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2414 if (chan->reg_class[cla].channels)
2417 chan->reg_classes = cla;
2422 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2424 enum hostapd_hw_mode mode)
2428 for (i = 0; i < num_modes; i++) {
2429 if (modes[i].mode == mode)
2437 static int has_channel(struct wpa_global *global,
2438 struct hostapd_hw_modes *mode, u8 chan, int *flags)
2443 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2445 if (wpas_p2p_disallowed_freq(global, freq))
2448 for (i = 0; i < mode->num_channels; i++) {
2449 if (mode->channels[i].chan == chan) {
2451 *flags = mode->channels[i].flag;
2452 return !(mode->channels[i].flag &
2453 (HOSTAPD_CHAN_DISABLED |
2454 HOSTAPD_CHAN_PASSIVE_SCAN |
2455 HOSTAPD_CHAN_NO_IBSS |
2456 HOSTAPD_CHAN_RADAR));
2464 struct p2p_oper_class_map {
2465 enum hostapd_hw_mode mode;
2470 enum { BW20, BW40PLUS, BW40MINUS } bw;
2473 static struct p2p_oper_class_map op_class[] = {
2474 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2475 #if 0 /* Do not enable HT40 on 2 GHz for now */
2476 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2477 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2479 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2480 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2481 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2482 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2483 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2484 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2485 { -1, 0, 0, 0, 0, BW20 }
2489 static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2490 struct hostapd_hw_modes *mode,
2495 if (!has_channel(wpa_s->global, mode, channel, &flag))
2497 if (bw == BW40MINUS &&
2498 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2499 !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2501 if (bw == BW40PLUS &&
2502 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2503 !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2509 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2510 struct p2p_channels *chan)
2512 struct hostapd_hw_modes *mode;
2515 if (wpa_s->hw.modes == NULL) {
2516 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2517 "of all supported channels; assume dualband "
2519 return wpas_p2p_default_channels(wpa_s, chan);
2524 for (op = 0; op_class[op].op_class; op++) {
2525 struct p2p_oper_class_map *o = &op_class[op];
2527 struct p2p_reg_class *reg = NULL;
2529 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2532 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2533 if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
2536 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2537 "class %u", o->op_class);
2538 reg = &chan->reg_class[cla];
2540 reg->reg_class = o->op_class;
2542 reg->channel[reg->channels] = ch;
2546 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2547 reg->channel, reg->channels);
2551 chan->reg_classes = cla;
2557 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2558 struct hostapd_hw_modes *mode, u8 channel)
2562 for (op = 0; op_class[op].op_class; op++) {
2563 struct p2p_oper_class_map *o = &op_class[op];
2566 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2567 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2568 o->bw == BW20 || ch != channel)
2570 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2574 return (o->bw == BW40MINUS) ? -1 : 1;
2583 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2586 struct wpa_supplicant *wpa_s = ctx;
2588 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2589 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2595 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2599 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2601 struct wpa_supplicant *wpa_s = ctx;
2603 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2604 struct wpa_ssid *ssid = wpa_s->current_ssid;
2607 if (ssid->mode != WPAS_MODE_INFRA)
2609 if (wpa_s->wpa_state != WPA_COMPLETED &&
2610 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2612 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2621 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2622 * @global: Pointer to global data from wpa_supplicant_init()
2623 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2624 * Returns: 0 on success, -1 on failure
2626 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2628 struct p2p_config p2p;
2632 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2638 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2639 struct p2p_params params;
2641 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2642 os_memset(¶ms, 0, sizeof(params));
2643 params.dev_name = wpa_s->conf->device_name;
2644 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2646 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2647 os_memcpy(params.sec_dev_type,
2648 wpa_s->conf->sec_device_type,
2649 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2651 if (wpa_drv_p2p_set_params(wpa_s, ¶ms) < 0)
2657 os_memset(&p2p, 0, sizeof(p2p));
2658 p2p.msg_ctx = wpa_s;
2660 p2p.p2p_scan = wpas_p2p_scan;
2661 p2p.send_action = wpas_send_action;
2662 p2p.send_action_done = wpas_send_action_done;
2663 p2p.go_neg_completed = wpas_go_neg_completed;
2664 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2665 p2p.dev_found = wpas_dev_found;
2666 p2p.dev_lost = wpas_dev_lost;
2667 p2p.start_listen = wpas_start_listen;
2668 p2p.stop_listen = wpas_stop_listen;
2669 p2p.send_probe_resp = wpas_send_probe_resp;
2670 p2p.sd_request = wpas_sd_request;
2671 p2p.sd_response = wpas_sd_response;
2672 p2p.prov_disc_req = wpas_prov_disc_req;
2673 p2p.prov_disc_resp = wpas_prov_disc_resp;
2674 p2p.prov_disc_fail = wpas_prov_disc_fail;
2675 p2p.invitation_process = wpas_invitation_process;
2676 p2p.invitation_received = wpas_invitation_received;
2677 p2p.invitation_result = wpas_invitation_result;
2678 p2p.get_noa = wpas_get_noa;
2679 p2p.go_connected = wpas_go_connected;
2681 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2682 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
2683 p2p.dev_name = wpa_s->conf->device_name;
2684 p2p.manufacturer = wpa_s->conf->manufacturer;
2685 p2p.model_name = wpa_s->conf->model_name;
2686 p2p.model_number = wpa_s->conf->model_number;
2687 p2p.serial_number = wpa_s->conf->serial_number;
2689 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2690 p2p.config_methods = wpa_s->wps->config_methods;
2693 if (wpa_s->conf->p2p_listen_reg_class &&
2694 wpa_s->conf->p2p_listen_channel) {
2695 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2696 p2p.channel = wpa_s->conf->p2p_listen_channel;
2700 * Pick one of the social channels randomly as the listen
2703 os_get_random((u8 *) &r, sizeof(r));
2704 p2p.channel = 1 + (r % 3) * 5;
2706 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2708 if (wpa_s->conf->p2p_oper_reg_class &&
2709 wpa_s->conf->p2p_oper_channel) {
2710 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2711 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2712 p2p.cfg_op_channel = 1;
2713 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2714 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2717 p2p.op_reg_class = 81;
2719 * Use random operation channel from (1, 6, 11) if no other
2720 * preference is indicated.
2722 os_get_random((u8 *) &r, sizeof(r));
2723 p2p.op_channel = 1 + (r % 3) * 5;
2724 p2p.cfg_op_channel = 0;
2725 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2726 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2728 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2729 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2730 p2p.country[2] = 0x04;
2732 os_memcpy(p2p.country, "XX\x04", 3);
2734 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2735 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2740 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2743 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2744 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2745 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2747 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2748 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2750 p2p.max_peers = 100;
2752 if (wpa_s->conf->p2p_ssid_postfix) {
2753 p2p.ssid_postfix_len =
2754 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2755 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2756 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2757 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2758 p2p.ssid_postfix_len);
2761 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2763 global->p2p = p2p_init(&p2p);
2764 if (global->p2p == NULL)
2766 global->p2p_init_wpa_s = wpa_s;
2768 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2769 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2771 p2p_add_wps_vendor_extension(
2772 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2780 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2781 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2783 * This function deinitialize per-interface P2P data.
2785 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2787 if (wpa_s->driver && wpa_s->drv_priv)
2788 wpa_drv_probe_req_report(wpa_s, 0);
2790 if (wpa_s->go_params) {
2791 /* Clear any stored provisioning info */
2792 p2p_clear_provisioning_info(
2794 wpa_s->go_params->peer_device_addr);
2797 os_free(wpa_s->go_params);
2798 wpa_s->go_params = NULL;
2799 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2800 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2801 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
2802 wpa_s->p2p_long_listen = 0;
2803 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2804 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2805 wpas_p2p_remove_pending_group_interface(wpa_s);
2807 /* TODO: remove group interface from the driver if this wpa_s instance
2808 * is on top of a P2P group interface */
2813 * wpas_p2p_deinit_global - Deinitialize global P2P module
2814 * @global: Pointer to global data from wpa_supplicant_init()
2816 * This function deinitializes the global (per device) P2P module.
2818 void wpas_p2p_deinit_global(struct wpa_global *global)
2820 struct wpa_supplicant *wpa_s, *tmp;
2822 wpa_s = global->ifaces;
2824 wpas_p2p_service_flush(wpa_s);
2826 if (global->p2p == NULL)
2829 /* Remove remaining P2P group interfaces */
2830 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2831 wpa_s = wpa_s->next;
2833 tmp = global->ifaces;
2836 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2841 /* Disconnect from the P2P group and deinit the interface */
2842 wpas_p2p_disconnect(tmp);
2846 * Deinit GO data on any possibly remaining interface (if main
2847 * interface is used as GO).
2849 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2850 if (wpa_s->ap_iface)
2851 wpas_p2p_group_deinit(wpa_s);
2854 p2p_deinit(global->p2p);
2856 global->p2p_init_wpa_s = NULL;
2860 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2862 if (wpa_s->drv_flags &
2863 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2864 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2865 return 1; /* P2P group requires a new interface in every case
2867 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2868 return 0; /* driver does not support concurrent operations */
2869 if (wpa_s->global->ifaces->next)
2870 return 1; /* more that one interface already in use */
2871 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2872 return 1; /* this interface is already in use */
2877 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2878 const u8 *peer_addr,
2879 enum p2p_wps_method wps_method,
2880 int go_intent, const u8 *own_interface_addr,
2881 unsigned int force_freq, int persistent_group,
2882 struct wpa_ssid *ssid, unsigned int pref_freq)
2884 if (persistent_group && wpa_s->conf->persistent_reconnect)
2885 persistent_group = 2;
2887 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2888 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2889 go_intent, own_interface_addr,
2890 force_freq, persistent_group);
2894 * Increase GO config timeout if HT40 is used since it takes some time
2895 * to scan channels for coex purposes before the BSS can be started.
2897 p2p_set_config_timeout(wpa_s->global->p2p,
2898 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
2900 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2901 go_intent, own_interface_addr, force_freq,
2902 persistent_group, ssid ? ssid->ssid : NULL,
2903 ssid ? ssid->ssid_len : 0,
2904 wpa_s->p2p_pd_before_go_neg, pref_freq);
2908 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2909 const u8 *peer_addr,
2910 enum p2p_wps_method wps_method,
2911 int go_intent, const u8 *own_interface_addr,
2912 unsigned int force_freq, int persistent_group,
2913 struct wpa_ssid *ssid, unsigned int pref_freq)
2915 if (persistent_group && wpa_s->conf->persistent_reconnect)
2916 persistent_group = 2;
2918 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2921 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2922 go_intent, own_interface_addr, force_freq,
2923 persistent_group, ssid ? ssid->ssid : NULL,
2924 ssid ? ssid->ssid_len : 0, pref_freq);
2928 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2930 wpa_s->p2p_join_scan_count++;
2931 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2932 wpa_s->p2p_join_scan_count);
2933 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2934 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2935 " for join operationg - stop join attempt",
2936 MAC2STR(wpa_s->pending_join_iface_addr));
2937 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2938 if (wpa_s->p2p_auto_pd) {
2939 wpa_s->p2p_auto_pd = 0;
2940 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2941 " p2p_dev_addr=" MACSTR " status=N/A",
2942 MAC2STR(wpa_s->pending_join_dev_addr));
2945 wpa_msg(wpa_s->parent, MSG_INFO,
2946 P2P_EVENT_GROUP_FORMATION_FAILURE);
2951 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
2953 struct wpa_supplicant *wpa_s = eloop_ctx;
2954 if (!wpa_s->pending_pd_before_join)
2957 * Provision Discovery Response may have been lost - try to connect
2958 * anyway since we do not need any information from this PD.
2960 wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
2961 "try to connect anyway");
2962 wpas_p2p_join_start(wpa_s);
2966 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
2968 struct wpa_supplicant *iface;
2972 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
2975 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
2976 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
2978 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
2980 if (iface->current_ssid->mode == WPAS_MODE_AP ||
2981 iface->current_ssid->mode == WPAS_MODE_P2P_GO)
2982 shared_freq = iface->current_ssid->frequency;
2983 else if (wpa_drv_get_bssid(iface, bssid) == 0)
2984 shared_freq = iface->assoc_freq;
2988 if (shared_freq && freq != shared_freq) {
2989 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
2990 "connected on %d MHz - new connection on "
2991 "%d MHz", iface->ifname, shared_freq, freq);
2996 shared_freq = wpa_drv_shared_freq(wpa_s);
2997 if (shared_freq > 0 && shared_freq != freq) {
2998 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
2999 "virtual interface connected on %d MHz - new "
3000 "connection on %d MHz", shared_freq, freq);
3008 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3009 const u8 *peer_dev_addr)
3011 struct wpa_bss *bss;
3014 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3017 if (bss->last_update_idx < wpa_s->bss_update_idx) {
3018 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3023 updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
3024 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3025 "%ld.%06ld (%supdated in last scan)",
3026 bss->last_update.sec, bss->last_update.usec,
3027 updated ? "": "not ");
3033 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3034 struct wpa_scan_results *scan_res)
3036 struct wpa_bss *bss;
3038 u8 iface_addr[ETH_ALEN];
3040 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3042 if (wpa_s->global->p2p_disabled)
3045 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3046 scan_res ? (int) scan_res->num : -1,
3047 wpa_s->p2p_auto_join ? "auto_" : "");
3050 wpas_p2p_scan_res_handler(wpa_s, scan_res);
3052 if (wpa_s->p2p_auto_pd) {
3053 int join = wpas_p2p_peer_go(wpa_s,
3054 wpa_s->pending_join_dev_addr);
3056 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3057 wpa_s->auto_pd_scan_retry++;
3058 bss = wpa_bss_get_bssid(wpa_s,
3059 wpa_s->pending_join_dev_addr);
3062 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3063 "the peer " MACSTR " at %d MHz",
3064 wpa_s->auto_pd_scan_retry,
3066 pending_join_dev_addr),
3068 wpas_p2p_join_scan_req(wpa_s, freq);
3076 wpa_s->p2p_auto_pd = 0;
3077 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3078 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3079 MAC2STR(wpa_s->pending_join_dev_addr), join);
3080 if (p2p_prov_disc_req(wpa_s->global->p2p,
3081 wpa_s->pending_join_dev_addr,
3082 wpa_s->pending_pd_config_methods, join,
3084 wpa_s->p2p_auto_pd = 0;
3085 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3086 " p2p_dev_addr=" MACSTR " status=N/A",
3087 MAC2STR(wpa_s->pending_join_dev_addr));
3092 if (wpa_s->p2p_auto_join) {
3093 int join = wpas_p2p_peer_go(wpa_s,
3094 wpa_s->pending_join_dev_addr);
3096 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3097 "running a GO -> use GO Negotiation");
3098 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3099 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3100 wpa_s->p2p_persistent_group, 0, 0, 0,
3101 wpa_s->p2p_go_intent,
3102 wpa_s->p2p_connect_freq,
3103 wpa_s->p2p_persistent_id,
3104 wpa_s->p2p_pd_before_go_neg,
3105 wpa_s->p2p_go_ht40);
3109 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3110 "try to join the group", join ? "" :
3113 wpa_s->p2p_fallback_to_go_neg = 1;
3116 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3117 wpa_s->pending_join_iface_addr);
3119 p2p_get_interface_addr(wpa_s->global->p2p,
3120 wpa_s->pending_join_dev_addr,
3122 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3124 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3125 "address for join from " MACSTR " to " MACSTR
3126 " based on newly discovered P2P peer entry",
3127 MAC2STR(wpa_s->pending_join_iface_addr),
3128 MAC2STR(iface_addr));
3129 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3132 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3133 wpa_s->pending_join_iface_addr);
3136 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3137 "from P2P peer table: %d MHz", freq);
3139 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3142 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3143 "from BSS table: %d MHz", freq);
3148 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3149 wpa_msg(wpa_s->parent, MSG_INFO,
3150 P2P_EVENT_GROUP_FORMATION_FAILURE
3151 "reason=FREQ_CONFLICT");
3155 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3156 "prior to joining an existing group (GO " MACSTR
3158 MAC2STR(wpa_s->pending_join_dev_addr), freq);
3159 wpa_s->pending_pd_before_join = 1;
3161 switch (wpa_s->pending_join_wps_method) {
3162 case WPS_PIN_DISPLAY:
3163 method = WPS_CONFIG_KEYPAD;
3165 case WPS_PIN_KEYPAD:
3166 method = WPS_CONFIG_DISPLAY;
3169 method = WPS_CONFIG_PUSHBUTTON;
3176 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3177 wpa_s->pending_join_dev_addr) ==
3180 * We have already performed provision discovery for
3181 * joining the group. Proceed directly to join
3182 * operation without duplicated provision discovery. */
3183 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
3184 "with " MACSTR " already done - proceed to "
3186 MAC2STR(wpa_s->pending_join_dev_addr));
3187 wpa_s->pending_pd_before_join = 0;
3191 if (p2p_prov_disc_req(wpa_s->global->p2p,
3192 wpa_s->pending_join_dev_addr, method, 1,
3194 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3195 "Discovery Request before joining an "
3197 wpa_s->pending_pd_before_join = 0;
3202 * Actual join operation will be started from the Action frame
3203 * TX status callback (if no ACK is received) or when the
3204 * Provision Discovery Response is received. Use a short
3205 * timeout as a backup mechanism should the Provision Discovery
3206 * Response be lost for any reason.
3208 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
3210 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
3215 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3216 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3217 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3218 wpas_p2p_check_join_scan_limit(wpa_s);
3222 /* Start join operation immediately */
3223 wpas_p2p_join_start(wpa_s);
3227 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
3230 struct wpa_driver_scan_params params;
3231 struct wpabuf *wps_ie, *ies;
3233 int freqs[2] = { 0, 0 };
3235 os_memset(¶ms, 0, sizeof(params));
3237 /* P2P Wildcard SSID */
3238 params.num_ssids = 1;
3239 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3240 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3242 wpa_s->wps->dev.p2p = 1;
3243 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3244 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3246 if (wps_ie == NULL) {
3247 wpas_p2p_scan_res_join(wpa_s, NULL);
3251 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3252 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
3254 wpabuf_free(wps_ie);
3255 wpas_p2p_scan_res_join(wpa_s, NULL);
3258 wpabuf_put_buf(ies, wps_ie);
3259 wpabuf_free(wps_ie);
3261 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
3263 params.p2p_probe = 1;
3264 params.extra_ies = wpabuf_head(ies);
3265 params.extra_ies_len = wpabuf_len(ies);
3268 params.freqs = freqs;
3272 * Run a scan to update BSS table and start Provision Discovery once
3273 * the new scan results become available.
3275 ret = wpa_drv_scan(wpa_s, ¶ms);
3277 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
3282 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3284 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3285 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3286 wpas_p2p_check_join_scan_limit(wpa_s);
3291 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3293 struct wpa_supplicant *wpa_s = eloop_ctx;
3294 wpas_p2p_join_scan_req(wpa_s, 0);
3298 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
3299 const u8 *dev_addr, enum p2p_wps_method wps_method,
3302 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
3303 MACSTR " dev " MACSTR ")%s",
3304 MAC2STR(iface_addr), MAC2STR(dev_addr),
3305 auto_join ? " (auto_join)" : "");
3307 wpa_s->p2p_auto_pd = 0;
3308 wpa_s->p2p_auto_join = !!auto_join;
3309 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3310 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3311 wpa_s->pending_join_wps_method = wps_method;
3313 /* Make sure we are not running find during connection establishment */
3314 wpas_p2p_stop_find(wpa_s);
3316 wpa_s->p2p_join_scan_count = 0;
3317 wpas_p2p_join_scan(wpa_s, NULL);
3322 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3324 struct wpa_supplicant *group;
3325 struct p2p_go_neg_results res;
3326 struct wpa_bss *bss;
3328 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
3329 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3332 if (group != wpa_s) {
3333 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3334 sizeof(group->p2p_pin));
3335 group->p2p_wps_method = wpa_s->p2p_wps_method;
3338 group->p2p_in_provisioning = 1;
3339 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
3341 os_memset(&res, 0, sizeof(res));
3342 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3344 res.wps_method = wpa_s->pending_join_wps_method;
3345 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3347 res.freq = bss->freq;
3348 res.ssid_len = bss->ssid_len;
3349 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3352 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3353 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3355 wpa_drv_cancel_remain_on_channel(wpa_s);
3356 wpa_s->off_channel_freq = 0;
3357 wpa_s->roc_waiting_drv_freq = 0;
3359 wpas_start_wps_enrollee(group, &res);
3362 * Allow a longer timeout for join-a-running-group than normal 15
3363 * second group formation timeout since the GO may not have authorized
3364 * our connection yet.
3366 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3367 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3375 * wpas_p2p_connect - Request P2P Group Formation to be started
3376 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3377 * @peer_addr: Address of the peer P2P Device
3378 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3379 * @persistent_group: Whether to create a persistent group
3380 * @auto_join: Whether to select join vs. GO Negotiation automatically
3381 * @join: Whether to join an existing group (as a client) instead of starting
3382 * Group Owner negotiation; @peer_addr is BSSID in that case
3383 * @auth: Whether to only authorize the connection instead of doing that and
3384 * initiating Group Owner negotiation
3385 * @go_intent: GO Intent or -1 to use default
3386 * @freq: Frequency for the group or 0 for auto-selection
3387 * @persistent_id: Persistent group credentials to use for forcing GO
3388 * parameters or -1 to generate new values (SSID/passphrase)
3389 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3390 * interoperability workaround when initiating group formation
3391 * @ht40: Start GO with 40 MHz channel width
3392 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3393 * failure, -2 on failure due to channel not currently available,
3394 * -3 if forced channel is not supported
3396 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3397 const char *pin, enum p2p_wps_method wps_method,
3398 int persistent_group, int auto_join, int join, int auth,
3399 int go_intent, int freq, int persistent_id, int pd,
3402 int force_freq = 0, pref_freq = 0, oper_freq = 0;
3405 enum wpa_driver_if_type iftype;
3407 struct wpa_ssid *ssid = NULL;
3409 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3412 if (persistent_id >= 0) {
3413 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3414 if (ssid == NULL || ssid->disabled != 2 ||
3415 ssid->mode != WPAS_MODE_P2P_GO)
3420 go_intent = wpa_s->conf->p2p_go_intent;
3423 wpa_s->p2p_long_listen = 0;
3425 wpa_s->p2p_wps_method = wps_method;
3426 wpa_s->p2p_persistent_group = !!persistent_group;
3427 wpa_s->p2p_persistent_id = persistent_id;
3428 wpa_s->p2p_go_intent = go_intent;
3429 wpa_s->p2p_connect_freq = freq;
3430 wpa_s->p2p_fallback_to_go_neg = 0;
3431 wpa_s->p2p_pd_before_go_neg = !!pd;
3432 wpa_s->p2p_go_ht40 = !!ht40;
3435 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3436 else if (wps_method == WPS_PIN_DISPLAY) {
3437 ret = wps_generate_pin();
3438 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3440 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3443 wpa_s->p2p_pin[0] = '\0';
3445 if (join || auto_join) {
3446 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
3448 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3449 "connect a running group from " MACSTR,
3450 MAC2STR(peer_addr));
3451 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3454 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
3455 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
3457 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
3458 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3462 os_get_time(&wpa_s->p2p_auto_started);
3463 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3465 wpa_s->p2p_auto_started.sec,
3466 wpa_s->p2p_auto_started.usec);
3468 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3474 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3476 oper_freq = wpa_s->assoc_freq;
3478 oper_freq = wpa_drv_shared_freq(wpa_s);
3484 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3485 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3486 "(%u MHz) is not supported for P2P uses",
3491 if (oper_freq > 0 && freq != oper_freq &&
3492 !(wpa_s->drv_flags &
3493 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3494 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3495 "on %u MHz while connected on another "
3496 "channel (%u MHz)", freq, oper_freq);
3499 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3500 "requested channel (%u MHz)", freq);
3502 } else if (oper_freq > 0 &&
3503 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3504 if (!(wpa_s->drv_flags &
3505 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3506 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3507 "while connected on non-P2P supported "
3508 "channel (%u MHz)", oper_freq);
3511 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3512 "(%u MHz) not available for P2P - try to use "
3513 "another channel", oper_freq);
3515 } else if (oper_freq > 0 &&
3517 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3518 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer the channel we "
3519 "are already using (%u MHz) on another interface",
3521 pref_freq = oper_freq;
3522 } else if (oper_freq > 0) {
3523 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3524 "channel we are already using (%u MHz) on another "
3525 "interface", oper_freq);
3526 force_freq = oper_freq;
3529 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3531 if (wpa_s->create_p2p_iface) {
3532 /* Prepare to add a new interface for the group */
3533 iftype = WPA_IF_P2P_GROUP;
3534 if (go_intent == 15)
3535 iftype = WPA_IF_P2P_GO;
3536 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3537 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3538 "interface for the group");
3542 if_addr = wpa_s->pending_interface_addr;
3544 if_addr = wpa_s->own_addr;
3547 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3549 force_freq, persistent_group, ssid,
3555 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3556 go_intent, if_addr, force_freq,
3557 persistent_group, ssid, pref_freq) < 0) {
3558 if (wpa_s->create_p2p_iface)
3559 wpas_p2p_remove_pending_group_interface(wpa_s);
3567 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3568 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3569 * @freq: Frequency of the channel in MHz
3570 * @duration: Duration of the stay on the channel in milliseconds
3572 * This callback is called when the driver indicates that it has started the
3573 * requested remain-on-channel duration.
3575 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3576 unsigned int freq, unsigned int duration)
3578 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3580 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3581 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3582 wpa_s->pending_listen_duration);
3583 wpa_s->pending_listen_freq = 0;
3588 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3589 unsigned int timeout)
3591 /* Limit maximum Listen state time based on driver limitation. */
3592 if (timeout > wpa_s->max_remain_on_chan)
3593 timeout = wpa_s->max_remain_on_chan;
3595 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3596 return wpa_drv_p2p_listen(wpa_s, timeout);
3598 return p2p_listen(wpa_s->global->p2p, timeout);
3603 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3604 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3605 * @freq: Frequency of the channel in MHz
3607 * This callback is called when the driver indicates that a remain-on-channel
3608 * operation has been completed, i.e., the duration on the requested channel
3611 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3614 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3615 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3616 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3617 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3619 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3620 return; /* P2P module started a new operation */
3621 if (wpa_s->pending_action_tx)
3623 if (wpa_s->p2p_long_listen > 0)
3624 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3625 if (wpa_s->p2p_long_listen > 0) {
3626 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3627 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3633 * wpas_p2p_group_remove - Remove a P2P group
3634 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3635 * @ifname: Network interface name of the group interface or "*" to remove all
3637 * Returns: 0 on success, -1 on failure
3639 * This function is used to remove a P2P group. This can be used to disconnect
3640 * from a group in which the local end is a P2P Client or to end a P2P Group in
3641 * case the local end is the Group Owner. If a virtual network interface was
3642 * created for this group, that interface will be removed. Otherwise, only the
3643 * configured P2P group network will be removed from the interface.
3645 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3647 struct wpa_global *global = wpa_s->global;
3649 if (os_strcmp(ifname, "*") == 0) {
3650 struct wpa_supplicant *prev;
3651 wpa_s = global->ifaces;
3654 wpa_s = wpa_s->next;
3655 wpas_p2p_disconnect(prev);
3660 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3661 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3665 return wpas_p2p_disconnect(wpa_s);
3669 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3670 struct p2p_go_neg_results *params,
3676 os_memset(params, 0, sizeof(*params));
3677 params->role_go = 1;
3678 params->ht40 = ht40;
3680 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3681 "frequency %d MHz", freq);
3682 params->freq = freq;
3683 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3684 wpa_s->conf->p2p_oper_channel >= 1 &&
3685 wpa_s->conf->p2p_oper_channel <= 11) {
3686 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3687 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3688 "frequency %d MHz", params->freq);
3689 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3690 wpa_s->conf->p2p_oper_reg_class == 124) {
3691 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3692 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3693 "frequency %d MHz", params->freq);
3694 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3695 wpa_s->best_overall_freq > 0 &&
3696 p2p_supported_freq(wpa_s->global->p2p,
3697 wpa_s->best_overall_freq)) {
3698 params->freq = wpa_s->best_overall_freq;
3699 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3700 "channel %d MHz", params->freq);
3701 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3702 wpa_s->best_24_freq > 0 &&
3703 p2p_supported_freq(wpa_s->global->p2p,
3704 wpa_s->best_24_freq)) {
3705 params->freq = wpa_s->best_24_freq;
3706 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3707 "channel %d MHz", params->freq);
3708 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3709 wpa_s->best_5_freq > 0 &&
3710 p2p_supported_freq(wpa_s->global->p2p,
3711 wpa_s->best_5_freq)) {
3712 params->freq = wpa_s->best_5_freq;
3713 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3714 "channel %d MHz", params->freq);
3717 for (chan = 0; chan < 11; chan++) {
3718 params->freq = 2412 + chan * 5;
3719 if (!wpas_p2p_disallowed_freq(wpa_s->global,
3724 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3728 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3729 "known)", params->freq);
3732 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3733 wpa_s->assoc_freq && !freq) {
3734 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3736 params->freq = wpa_s->assoc_freq;
3739 res = wpa_drv_shared_freq(wpa_s);
3740 if (res > 0 && !freq) {
3741 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3742 "already using on a shared interface");
3744 } else if (res > 0 && freq != res &&
3745 !(wpa_s->drv_flags &
3746 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3747 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3748 "while connected on another channel (%u MHz)",
3757 static struct wpa_supplicant *
3758 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3761 struct wpa_supplicant *group_wpa_s;
3763 if (!wpas_p2p_create_iface(wpa_s)) {
3764 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
3769 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3770 WPA_IF_P2P_CLIENT) < 0) {
3771 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to add group interface");
3774 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3775 if (group_wpa_s == NULL) {
3776 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to initialize group "
3778 wpas_p2p_remove_pending_group_interface(wpa_s);
3782 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
3783 group_wpa_s->ifname);
3789 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3790 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3791 * @persistent_group: Whether to create a persistent group
3792 * @freq: Frequency for the group or 0 to indicate no hardcoding
3793 * Returns: 0 on success, -1 on failure
3795 * This function creates a new P2P group with the local end as the Group Owner,
3796 * i.e., without using Group Owner Negotiation.
3798 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3801 struct p2p_go_neg_results params;
3804 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3807 /* Make sure we are not running find during connection establishment */
3808 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3809 wpas_p2p_stop_find(wpa_s);
3812 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3814 if (wpa_s->best_24_freq > 0 &&
3815 p2p_supported_freq(wpa_s->global->p2p,
3816 wpa_s->best_24_freq)) {
3817 freq = wpa_s->best_24_freq;
3818 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3819 "channel: %d MHz", freq);
3821 os_get_random((u8 *) &r, sizeof(r));
3822 freq = 2412 + (r % 3) * 25;
3823 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3824 "channel: %d MHz", freq);
3829 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3831 if (wpa_s->best_5_freq > 0 &&
3832 p2p_supported_freq(wpa_s->global->p2p,
3833 wpa_s->best_5_freq)) {
3834 freq = wpa_s->best_5_freq;
3835 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3836 "channel: %d MHz", freq);
3838 os_get_random((u8 *) &r, sizeof(r));
3839 freq = 5180 + (r % 4) * 20;
3840 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3841 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3842 "5 GHz channel for P2P group");
3845 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3846 "channel: %d MHz", freq);
3850 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3851 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3852 "(%u MHz) is not supported for P2P uses",
3857 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40))
3860 !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
3861 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
3862 "(%u MHz) is not supported for P2P uses",
3866 p2p_go_params(wpa_s->global->p2p, ¶ms);
3867 params.persistent_group = persistent_group;
3869 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3872 wpas_start_wps_go(wpa_s, ¶ms, 0);
3878 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3879 struct wpa_ssid *params, int addr_allocated)
3881 struct wpa_ssid *ssid;
3883 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3887 wpa_supplicant_ap_deinit(wpa_s);
3889 ssid = wpa_config_add_network(wpa_s->conf);
3892 wpa_config_set_network_defaults(ssid);
3893 ssid->temporary = 1;
3894 ssid->proto = WPA_PROTO_RSN;
3895 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3896 ssid->group_cipher = WPA_CIPHER_CCMP;
3897 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3898 ssid->ssid = os_malloc(params->ssid_len);
3899 if (ssid->ssid == NULL) {
3900 wpa_config_remove_network(wpa_s->conf, ssid->id);
3903 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3904 ssid->ssid_len = params->ssid_len;
3905 ssid->p2p_group = 1;
3906 ssid->export_keys = 1;
3907 if (params->psk_set) {
3908 os_memcpy(ssid->psk, params->psk, 32);
3911 if (params->passphrase)
3912 ssid->passphrase = os_strdup(params->passphrase);
3914 wpa_supplicant_select_network(wpa_s, ssid);
3916 wpa_s->show_group_started = 1;
3922 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3923 struct wpa_ssid *ssid, int addr_allocated,
3926 struct p2p_go_neg_results params;
3929 if (ssid->disabled != 2 || ssid->ssid == NULL)
3932 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3933 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3934 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3939 /* Make sure we are not running find during connection establishment */
3940 wpas_p2p_stop_find(wpa_s);
3942 wpa_s->p2p_fallback_to_go_neg = 0;
3944 if (ssid->mode == WPAS_MODE_INFRA)
3945 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3947 if (ssid->mode != WPAS_MODE_P2P_GO)
3950 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40))
3954 if (ssid->passphrase == NULL ||
3955 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3956 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3960 os_strlcpy(params.passphrase, ssid->passphrase,
3961 sizeof(params.passphrase));
3962 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3963 params.ssid_len = ssid->ssid_len;
3964 params.persistent_group = 1;
3966 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3970 wpas_start_wps_go(wpa_s, ¶ms, 0);
3976 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3977 struct wpabuf *proberesp_ies)
3979 struct wpa_supplicant *wpa_s = ctx;
3980 if (wpa_s->ap_iface) {
3981 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3982 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3983 wpabuf_free(beacon_ies);
3984 wpabuf_free(proberesp_ies);
3988 wpabuf_free(hapd->p2p_beacon_ie);
3989 hapd->p2p_beacon_ie = beacon_ies;
3991 wpabuf_free(hapd->p2p_probe_resp_ie);
3992 hapd->p2p_probe_resp_ie = proberesp_ies;
3994 wpabuf_free(beacon_ies);
3995 wpabuf_free(proberesp_ies);
3997 wpa_supplicant_ap_update_beacon(wpa_s);
4001 static void wpas_p2p_idle_update(void *ctx, int idle)
4003 struct wpa_supplicant *wpa_s = ctx;
4004 if (!wpa_s->ap_iface)
4006 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
4008 wpas_p2p_set_group_idle_timeout(wpa_s);
4010 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4014 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
4015 struct wpa_ssid *ssid)
4017 struct p2p_group *group;
4018 struct p2p_group_config *cfg;
4020 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4022 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4025 cfg = os_zalloc(sizeof(*cfg));
4029 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
4030 cfg->persistent_group = 2;
4031 else if (ssid->p2p_persistent_group)
4032 cfg->persistent_group = 1;
4033 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
4034 if (wpa_s->max_stations &&
4035 wpa_s->max_stations < wpa_s->conf->max_num_sta)
4036 cfg->max_clients = wpa_s->max_stations;
4038 cfg->max_clients = wpa_s->conf->max_num_sta;
4039 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4040 cfg->ssid_len = ssid->ssid_len;
4041 cfg->cb_ctx = wpa_s;
4042 cfg->ie_update = wpas_p2p_ie_update;
4043 cfg->idle_update = wpas_p2p_idle_update;
4045 group = p2p_group_init(wpa_s->global->p2p, cfg);
4048 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
4049 p2p_group_notif_formation_done(group);
4050 wpa_s->p2p_group = group;
4055 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4058 struct wpa_ssid *ssid = wpa_s->current_ssid;
4060 if (!wpa_s->p2p_in_provisioning) {
4061 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4062 "provisioning not in progress");
4066 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4067 u8 go_dev_addr[ETH_ALEN];
4068 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4069 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4071 /* Clear any stored provisioning info */
4072 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4075 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4077 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4079 * Use a separate timeout for initial data connection to
4080 * complete to allow the group to be removed automatically if
4081 * something goes wrong in this step before the P2P group idle
4082 * timeout mechanism is taken into use.
4084 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4085 wpas_p2p_group_formation_timeout,
4086 wpa_s->parent, NULL);
4088 if (wpa_s->global->p2p)
4089 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
4090 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4091 wpa_drv_wps_success_cb(wpa_s, peer_addr);
4092 wpas_group_formation_completed(wpa_s, 1);
4096 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4097 struct wps_event_fail *fail)
4099 if (!wpa_s->p2p_in_provisioning) {
4100 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4101 "provisioning not in progress");
4105 if (wpa_s->go_params) {
4106 p2p_clear_provisioning_info(
4108 wpa_s->go_params->peer_device_addr);
4111 wpas_notify_p2p_wps_failed(wpa_s, fail);
4115 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4116 const char *config_method,
4117 enum wpas_p2p_prov_disc_use use)
4121 wpa_s->p2p_fallback_to_go_neg = 0;
4122 wpa_s->pending_pd_use = NORMAL_PD;
4123 if (os_strncmp(config_method, "display", 7) == 0)
4124 config_methods = WPS_CONFIG_DISPLAY;
4125 else if (os_strncmp(config_method, "keypad", 6) == 0)
4126 config_methods = WPS_CONFIG_KEYPAD;
4127 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4128 os_strncmp(config_method, "pushbutton", 10) == 0)
4129 config_methods = WPS_CONFIG_PUSHBUTTON;
4131 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
4135 if (use == WPAS_P2P_PD_AUTO) {
4136 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4137 wpa_s->pending_pd_config_methods = config_methods;
4138 wpa_s->p2p_auto_pd = 1;
4139 wpa_s->p2p_auto_join = 0;
4140 wpa_s->pending_pd_before_join = 0;
4141 wpa_s->auto_pd_scan_retry = 0;
4142 wpas_p2p_stop_find(wpa_s);
4143 wpa_s->p2p_join_scan_count = 0;
4144 os_get_time(&wpa_s->p2p_auto_started);
4145 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4146 wpa_s->p2p_auto_started.sec,
4147 wpa_s->p2p_auto_started.usec);
4148 wpas_p2p_join_scan(wpa_s, NULL);
4152 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4153 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
4155 use == WPAS_P2P_PD_FOR_JOIN);
4158 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
4161 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
4162 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
4167 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4170 return p2p_scan_result_text(ies, ies_len, buf, end);
4174 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4176 if (!wpa_s->pending_action_tx)
4179 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4180 "operation request");
4181 wpabuf_free(wpa_s->pending_action_tx);
4182 wpa_s->pending_action_tx = NULL;
4186 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
4187 enum p2p_discovery_type type,
4188 unsigned int num_req_dev_types, const u8 *req_dev_types,
4189 const u8 *dev_id, unsigned int search_delay)
4191 wpas_p2p_clear_pending_action_tx(wpa_s);
4192 wpa_s->p2p_long_listen = 0;
4194 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4195 return wpa_drv_p2p_find(wpa_s, timeout, type);
4197 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4198 wpa_s->p2p_in_provisioning)
4201 wpa_supplicant_cancel_sched_scan(wpa_s);
4203 return p2p_find(wpa_s->global->p2p, timeout, type,
4204 num_req_dev_types, req_dev_types, dev_id,
4209 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4211 wpas_p2p_clear_pending_action_tx(wpa_s);
4212 wpa_s->p2p_long_listen = 0;
4213 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4214 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4215 wpa_s->global->p2p_cb_on_scan_complete = 0;
4217 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4218 wpa_drv_p2p_stop_find(wpa_s);
4222 if (wpa_s->global->p2p)
4223 p2p_stop_find(wpa_s->global->p2p);
4225 wpas_p2p_remove_pending_group_interface(wpa_s);
4229 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4231 struct wpa_supplicant *wpa_s = eloop_ctx;
4232 wpa_s->p2p_long_listen = 0;
4236 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4240 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4243 wpa_supplicant_cancel_sched_scan(wpa_s);
4244 wpas_p2p_clear_pending_action_tx(wpa_s);
4248 * This is a request for unlimited Listen state. However, at
4249 * least for now, this is mapped to a Listen state for one
4254 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4255 wpa_s->p2p_long_listen = 0;
4258 * Stop previous find/listen operation to avoid trying to request a new
4259 * remain-on-channel operation while the driver is still running the
4262 if (wpa_s->global->p2p)
4263 p2p_stop_find(wpa_s->global->p2p);
4265 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4266 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
4267 wpa_s->p2p_long_listen = timeout * 1000;
4268 eloop_register_timeout(timeout, 0,
4269 wpas_p2p_long_listen_timeout,
4277 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
4278 u8 *buf, size_t len, int p2p_group)
4280 struct wpabuf *p2p_ie;
4283 if (wpa_s->global->p2p_disabled)
4285 if (wpa_s->global->p2p == NULL)
4290 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4291 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4293 wpabuf_free(p2p_ie);
4299 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
4300 const u8 *dst, const u8 *bssid,
4301 const u8 *ie, size_t ie_len, int ssi_signal)
4303 if (wpa_s->global->p2p_disabled)
4305 if (wpa_s->global->p2p == NULL)
4308 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4310 case P2P_PREQ_NOT_P2P:
4311 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4314 case P2P_PREQ_MALFORMED:
4315 case P2P_PREQ_NOT_LISTEN:
4316 case P2P_PREQ_NOT_PROCESSED:
4317 default: /* make gcc happy */
4319 case P2P_PREQ_PROCESSED:
4325 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4326 const u8 *sa, const u8 *bssid,
4327 u8 category, const u8 *data, size_t len, int freq)
4329 if (wpa_s->global->p2p_disabled)
4331 if (wpa_s->global->p2p == NULL)
4334 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4339 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4341 if (wpa_s->global->p2p_disabled)
4343 if (wpa_s->global->p2p == NULL)
4346 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4350 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4352 p2p_group_deinit(wpa_s->p2p_group);
4353 wpa_s->p2p_group = NULL;
4355 wpa_s->ap_configured_cb = NULL;
4356 wpa_s->ap_configured_cb_ctx = NULL;
4357 wpa_s->ap_configured_cb_data = NULL;
4358 wpa_s->connect_without_scan = NULL;
4362 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4364 wpa_s->p2p_long_listen = 0;
4366 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4367 return wpa_drv_p2p_reject(wpa_s, addr);
4369 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4372 return p2p_reject(wpa_s->global->p2p, addr);
4376 /* Invite to reinvoke a persistent group */
4377 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4378 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4381 enum p2p_invite_role role;
4384 wpa_s->p2p_persistent_go_freq = freq;
4385 wpa_s->p2p_go_ht40 = !!ht40;
4386 if (ssid->mode == WPAS_MODE_P2P_GO) {
4387 role = P2P_INVITE_ROLE_GO;
4388 if (peer_addr == NULL) {
4389 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4390 "address in invitation command");
4393 if (wpas_p2p_create_iface(wpa_s)) {
4394 if (wpas_p2p_add_group_interface(wpa_s,
4395 WPA_IF_P2P_GO) < 0) {
4396 wpa_printf(MSG_ERROR, "P2P: Failed to "
4397 "allocate a new interface for the "
4401 bssid = wpa_s->pending_interface_addr;
4403 bssid = wpa_s->own_addr;
4405 role = P2P_INVITE_ROLE_CLIENT;
4406 peer_addr = ssid->bssid;
4408 wpa_s->pending_invite_ssid_id = ssid->id;
4410 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4411 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4412 ssid->ssid, ssid->ssid_len,
4415 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4418 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4419 ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
4423 /* Invite to join an active group */
4424 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4425 const u8 *peer_addr, const u8 *go_dev_addr)
4427 struct wpa_global *global = wpa_s->global;
4428 enum p2p_invite_role role;
4430 struct wpa_ssid *ssid;
4433 wpa_s->p2p_persistent_go_freq = 0;
4434 wpa_s->p2p_go_ht40 = 0;
4436 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4437 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4440 if (wpa_s == NULL) {
4441 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4445 ssid = wpa_s->current_ssid;
4447 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4452 persistent = ssid->p2p_persistent_group &&
4453 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4454 ssid->ssid, ssid->ssid_len);
4456 if (ssid->mode == WPAS_MODE_P2P_GO) {
4457 role = P2P_INVITE_ROLE_ACTIVE_GO;
4458 bssid = wpa_s->own_addr;
4459 if (go_dev_addr == NULL)
4460 go_dev_addr = wpa_s->global->p2p_dev_addr;
4462 role = P2P_INVITE_ROLE_CLIENT;
4463 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4464 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4465 "invite to current group");
4468 bssid = wpa_s->bssid;
4469 if (go_dev_addr == NULL &&
4470 !is_zero_ether_addr(wpa_s->go_dev_addr))
4471 go_dev_addr = wpa_s->go_dev_addr;
4473 wpa_s->parent->pending_invite_ssid_id = -1;
4475 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4476 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4477 ssid->ssid, ssid->ssid_len,
4478 go_dev_addr, persistent);
4480 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4483 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4484 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
4485 go_dev_addr, persistent);
4489 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4491 struct wpa_ssid *ssid = wpa_s->current_ssid;
4492 const char *ssid_txt;
4493 u8 go_dev_addr[ETH_ALEN];
4494 int network_id = -1;
4498 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4499 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4500 wpa_s->parent, NULL);
4503 if (!wpa_s->show_group_started || !ssid)
4506 wpa_s->show_group_started = 0;
4508 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4509 os_memset(go_dev_addr, 0, ETH_ALEN);
4510 if (ssid->bssid_set)
4511 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4512 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4514 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4516 if (wpa_s->global->p2p_group_formation == wpa_s)
4517 wpa_s->global->p2p_group_formation = NULL;
4519 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4520 (int) wpa_s->assoc_freq;
4521 if (ssid->passphrase == NULL && ssid->psk_set) {
4523 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4524 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4525 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4527 wpa_s->ifname, ssid_txt, freq, psk,
4528 MAC2STR(go_dev_addr),
4529 persistent ? " [PERSISTENT]" : "");
4531 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4532 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4533 "go_dev_addr=" MACSTR "%s",
4534 wpa_s->ifname, ssid_txt, freq,
4535 ssid->passphrase ? ssid->passphrase : "",
4536 MAC2STR(go_dev_addr),
4537 persistent ? " [PERSISTENT]" : "");
4541 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4544 network_id = ssid->id;
4545 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
4548 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
4549 wpa_s->global->p2p != NULL) {
4550 wpa_s->global->p2p_cb_on_scan_complete = 0;
4551 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4552 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4553 "continued after successful connection");
4554 p2p_increase_search_delay(
4556 wpas_p2p_search_delay(wpa_s));
4562 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4563 u32 interval1, u32 duration2, u32 interval2)
4565 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4567 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4570 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4571 wpa_s->current_ssid == NULL ||
4572 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4575 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4576 wpa_s->own_addr, wpa_s->assoc_freq,
4577 duration1, interval1, duration2, interval2);
4581 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4582 unsigned int interval)
4584 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4587 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4590 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4594 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4596 return wpa_s->current_ssid != NULL &&
4597 wpa_s->current_ssid->p2p_group &&
4598 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4602 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4604 struct wpa_supplicant *wpa_s = eloop_ctx;
4606 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
4607 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4612 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4614 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
4618 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4622 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4623 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4625 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4628 timeout = wpa_s->conf->p2p_group_idle;
4629 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4630 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4631 timeout = P2P_MAX_CLIENT_IDLE;
4637 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4638 timeout = 0; /* special client mode no-timeout */
4643 if (wpa_s->p2p_in_provisioning) {
4645 * Use the normal group formation timeout during the
4646 * provisioning phase to avoid terminating this process too
4647 * early due to group idle timeout.
4649 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4650 "during provisioning");
4654 if (wpa_s->show_group_started) {
4656 * Use the normal group formation timeout between the end of
4657 * the provisioning phase and completion of 4-way handshake to
4658 * avoid terminating this process too early due to group idle
4661 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4662 "while waiting for initial 4-way handshake to "
4667 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
4669 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4674 /* Returns 1 if the interface was removed */
4675 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4676 u16 reason_code, const u8 *ie, size_t ie_len,
4677 int locally_generated)
4679 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4681 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4684 if (!locally_generated)
4685 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4688 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4689 wpa_s->current_ssid &&
4690 wpa_s->current_ssid->p2p_group &&
4691 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4692 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4693 "session is ending");
4694 if (wpas_p2p_group_delete(wpa_s,
4695 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4704 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4705 u16 reason_code, const u8 *ie, size_t ie_len,
4706 int locally_generated)
4708 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4710 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4713 if (!locally_generated)
4714 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4719 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4721 struct p2p_data *p2p = wpa_s->global->p2p;
4726 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4729 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4730 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4732 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4733 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4736 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4737 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4739 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4740 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4742 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4743 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4744 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4745 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4746 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4749 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4750 p2p_set_sec_dev_types(p2p,
4751 (void *) wpa_s->conf->sec_device_type,
4752 wpa_s->conf->num_sec_device_types);
4754 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4756 p2p_remove_wps_vendor_extensions(p2p);
4757 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4758 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4760 p2p_add_wps_vendor_extension(
4761 p2p, wpa_s->conf->wps_vendor_ext[i]);
4765 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4766 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4768 country[0] = wpa_s->conf->country[0];
4769 country[1] = wpa_s->conf->country[1];
4771 p2p_set_country(p2p, country);
4774 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4775 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4776 wpa_s->conf->p2p_ssid_postfix ?
4777 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4781 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4782 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
4784 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4785 u8 reg_class, channel;
4788 if (wpa_s->conf->p2p_listen_reg_class &&
4789 wpa_s->conf->p2p_listen_channel) {
4790 reg_class = wpa_s->conf->p2p_listen_reg_class;
4791 channel = wpa_s->conf->p2p_listen_channel;
4795 * Pick one of the social channels randomly as the
4798 os_get_random((u8 *) &r, sizeof(r));
4799 channel = 1 + (r % 3) * 5;
4801 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4803 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4806 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4807 u8 op_reg_class, op_channel, cfg_op_channel;
4810 if (wpa_s->conf->p2p_oper_reg_class &&
4811 wpa_s->conf->p2p_oper_channel) {
4812 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4813 op_channel = wpa_s->conf->p2p_oper_channel;
4818 * Use random operation channel from (1, 6, 11)
4819 *if no other preference is indicated.
4821 os_get_random((u8 *) &r, sizeof(r));
4822 op_channel = 1 + (r % 3) * 5;
4825 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4828 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4832 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
4833 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
4834 wpa_s->conf->p2p_pref_chan) < 0) {
4835 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
4842 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4845 if (!wpa_s->ap_iface)
4847 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4852 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4854 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4856 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4859 wpa_s->global->cross_connection = enabled;
4860 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4863 struct wpa_supplicant *iface;
4865 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4867 if (iface->cross_connect_enabled == 0)
4870 iface->cross_connect_enabled = 0;
4871 iface->cross_connect_in_use = 0;
4872 wpa_msg(iface->parent, MSG_INFO,
4873 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4874 iface->ifname, iface->cross_connect_uplink);
4882 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4884 struct wpa_supplicant *iface;
4886 if (!uplink->global->cross_connection)
4889 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4890 if (!iface->cross_connect_enabled)
4892 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4895 if (iface->ap_iface == NULL)
4897 if (iface->cross_connect_in_use)
4900 iface->cross_connect_in_use = 1;
4901 wpa_msg(iface->parent, MSG_INFO,
4902 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4903 iface->ifname, iface->cross_connect_uplink);
4908 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4910 struct wpa_supplicant *iface;
4912 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4913 if (!iface->cross_connect_enabled)
4915 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4918 if (!iface->cross_connect_in_use)
4921 wpa_msg(iface->parent, MSG_INFO,
4922 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4923 iface->ifname, iface->cross_connect_uplink);
4924 iface->cross_connect_in_use = 0;
4929 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4931 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4932 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4933 wpa_s->cross_connect_disallowed)
4934 wpas_p2p_disable_cross_connect(wpa_s);
4936 wpas_p2p_enable_cross_connect(wpa_s);
4937 if (!wpa_s->ap_iface &&
4938 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4939 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4943 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4945 wpas_p2p_disable_cross_connect(wpa_s);
4946 if (!wpa_s->ap_iface &&
4947 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
4949 wpas_p2p_set_group_idle_timeout(wpa_s);
4953 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4955 struct wpa_supplicant *iface;
4957 if (!wpa_s->global->cross_connection)
4960 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4963 if (iface->drv_flags &
4964 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4966 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4969 wpa_s->cross_connect_enabled = 1;
4970 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4971 sizeof(wpa_s->cross_connect_uplink));
4972 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4973 "%s to %s whenever uplink is available",
4974 wpa_s->ifname, wpa_s->cross_connect_uplink);
4976 if (iface->ap_iface || iface->current_ssid == NULL ||
4977 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4978 iface->cross_connect_disallowed ||
4979 iface->wpa_state != WPA_COMPLETED)
4982 wpa_s->cross_connect_in_use = 1;
4983 wpa_msg(wpa_s->parent, MSG_INFO,
4984 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4985 wpa_s->ifname, wpa_s->cross_connect_uplink);
4991 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4993 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4994 !wpa_s->p2p_in_provisioning)
4995 return 0; /* not P2P client operation */
4997 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4999 if (wpa_s != wpa_s->parent)
5000 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
5002 if (wpa_s->global->p2p)
5003 p2p_group_formation_failed(wpa_s->global->p2p);
5005 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5006 wpa_s->parent, NULL);
5008 wpas_group_formation_completed(wpa_s, 0);
5013 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5015 struct p2p_channels chan;
5017 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5020 os_memset(&chan, 0, sizeof(chan));
5021 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
5022 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5027 p2p_update_channel_list(wpa_s->global->p2p, &chan);
5031 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5033 struct wpa_global *global = wpa_s->global;
5037 if (global->p2p == NULL)
5040 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
5042 if (wpa_s->pending_interface_name[0] &&
5043 !is_zero_ether_addr(wpa_s->pending_interface_addr))
5046 peer = p2p_get_go_neg_peer(global->p2p);
5048 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5049 MACSTR, MAC2STR(peer));
5050 p2p_unauthorize(global->p2p, peer);
5054 wpas_p2p_stop_find(wpa_s);
5056 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5057 if (wpa_s == global->p2p_group_formation &&
5058 (wpa_s->p2p_in_provisioning ||
5059 wpa_s->parent->pending_interface_type ==
5060 WPA_IF_P2P_CLIENT)) {
5061 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5062 "formation found - cancelling",
5065 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5066 wpa_s->parent, NULL);
5067 if (wpa_s->p2p_in_provisioning) {
5068 wpas_group_formation_completed(wpa_s, 0);
5071 wpas_p2p_group_delete(wpa_s,
5072 P2P_GROUP_REMOVAL_REQUESTED);
5078 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5086 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5088 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5091 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5092 "being available anymore");
5093 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
5097 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5098 int freq_24, int freq_5, int freq_overall)
5100 struct p2p_data *p2p = wpa_s->global->p2p;
5101 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5103 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5107 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5110 struct p2p_data *p2p = wpa_s->global->p2p;
5112 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5115 if (hwaddr_aton(addr, peer))
5118 return p2p_unauthorize(p2p, peer);
5123 * wpas_p2p_disconnect - Disconnect from a P2P Group
5124 * @wpa_s: Pointer to wpa_supplicant data
5125 * Returns: 0 on success, -1 on failure
5127 * This can be used to disconnect from a group in which the local end is a P2P
5128 * Client or to end a P2P Group in case the local end is the Group Owner. If a
5129 * virtual network interface was created for this group, that interface will be
5130 * removed. Otherwise, only the configured P2P group network will be removed
5131 * from the interface.
5133 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5139 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5144 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5146 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5149 return p2p_in_progress(wpa_s->global->p2p);
5153 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5154 struct wpa_ssid *ssid)
5156 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5157 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5158 wpa_s->parent, NULL) > 0) {
5160 * Remove the network by scheduling the group formation
5161 * timeout to happen immediately. The teardown code
5162 * needs to be scheduled to run asynch later so that we
5163 * don't delete data from under ourselves unexpectedly.
5164 * Calling wpas_p2p_group_formation_timeout directly
5165 * causes a series of crashes in WPS failure scenarios.
5167 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5168 "P2P group network getting removed");
5169 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5170 wpa_s->parent, NULL);
5175 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
5176 const u8 *addr, const u8 *ssid,
5182 for (s = wpa_s->conf->ssid; s; s = s->next) {
5183 if (s->disabled != 2)
5186 (ssid_len != s->ssid_len ||
5187 os_memcmp(ssid, s->ssid, ssid_len) != 0))
5189 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5190 return s; /* peer is GO in the persistent group */
5191 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5193 for (i = 0; i < s->num_p2p_clients; i++) {
5194 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5195 addr, ETH_ALEN) == 0)
5196 return s; /* peer is P2P client in persistent
5205 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5210 wpas_p2p_add_persistent_group_client(wpa_s, addr);
5214 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5217 struct wpa_supplicant *group = wpa_s;
5218 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
5219 if (wpa_s->global->p2p_group_formation)
5220 group = wpa_s->global->p2p_group_formation;
5221 wpa_s = wpa_s->parent;
5222 offchannel_send_action_done(wpa_s);
5224 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
5225 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5226 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5227 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5228 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
5229 wpa_s->p2p_persistent_id,
5230 wpa_s->p2p_pd_before_go_neg,
5231 wpa_s->p2p_go_ht40);
5235 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5237 if (!wpa_s->p2p_fallback_to_go_neg ||
5238 wpa_s->p2p_in_provisioning <= 5)
5241 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5242 return 0; /* peer operating as a GO */
5244 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5245 "fallback to GO Negotiation");
5246 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5252 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5254 const char *rn, *rn2;
5255 struct wpa_supplicant *ifs;
5257 if (wpa_s->wpa_state > WPA_SCANNING) {
5258 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5259 "concurrent operation",
5260 P2P_CONCURRENT_SEARCH_DELAY);
5261 return P2P_CONCURRENT_SEARCH_DELAY;
5264 if (!wpa_s->driver->get_radio_name)
5266 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5267 if (rn == NULL || rn[0] == '\0')
5270 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5271 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5274 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5275 if (!rn2 || os_strcmp(rn, rn2) != 0)
5277 if (ifs->wpa_state > WPA_SCANNING) {
5278 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5279 "delay due to concurrent operation on "
5281 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5282 return P2P_CONCURRENT_SEARCH_DELAY;