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 #ifndef P2P_MAX_CLIENT_IDLE
44 * How many seconds to try to reconnect to the GO when connection in P2P client
47 #define P2P_MAX_CLIENT_IDLE 10
48 #endif /* P2P_MAX_CLIENT_IDLE */
51 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
52 static struct wpa_supplicant *
53 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
55 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
56 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
57 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
58 const u8 *dev_addr, enum p2p_wps_method wps_method);
59 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
61 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
62 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
63 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
64 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
67 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
68 struct wpa_scan_results *scan_res)
72 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
75 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
78 for (i = 0; i < scan_res->num; i++) {
79 struct wpa_scan_res *bss = scan_res->res[i];
80 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
81 bss->freq, bss->level,
82 (const u8 *) (bss + 1),
87 p2p_scan_res_handled(wpa_s->global->p2p);
91 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
92 unsigned int num_req_dev_types,
93 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
95 struct wpa_supplicant *wpa_s = ctx;
96 struct wpa_driver_scan_params params;
98 struct wpabuf *wps_ie, *ies;
99 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
103 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
106 os_memset(¶ms, 0, sizeof(params));
108 /* P2P Wildcard SSID */
109 params.num_ssids = 1;
110 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
111 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
113 wpa_s->wps->dev.p2p = 1;
114 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
115 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
116 num_req_dev_types, req_dev_types);
120 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
121 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
126 wpabuf_put_buf(ies, wps_ie);
129 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
131 params.p2p_probe = 1;
132 params.extra_ies = wpabuf_head(ies);
133 params.extra_ies_len = wpabuf_len(ies);
136 case P2P_SCAN_SOCIAL:
137 params.freqs = social_channels;
141 case P2P_SCAN_SPECIFIC:
142 social_channels[0] = freq;
143 social_channels[1] = 0;
144 params.freqs = social_channels;
146 case P2P_SCAN_SOCIAL_PLUS_ONE:
147 social_channels[3] = freq;
148 params.freqs = social_channels;
152 was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler;
153 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
154 ret = wpa_drv_scan(wpa_s, ¶ms);
159 wpa_s->scan_res_handler = NULL;
160 if (wpa_s->scanning || was_in_p2p_scan) {
161 wpa_s->p2p_cb_on_scan_complete = 1;
170 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
172 switch (p2p_group_interface) {
173 case P2P_GROUP_INTERFACE_PENDING:
174 return WPA_IF_P2P_GROUP;
175 case P2P_GROUP_INTERFACE_GO:
176 return WPA_IF_P2P_GO;
177 case P2P_GROUP_INTERFACE_CLIENT:
178 return WPA_IF_P2P_CLIENT;
181 return WPA_IF_P2P_GROUP;
185 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
187 size_t ssid_len, int *go)
191 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
192 for (s = wpa_s->conf->ssid; s; s = s->next) {
193 if (s->disabled != 0 || !s->p2p_group ||
194 s->ssid_len != ssid_len ||
195 os_memcmp(ssid, s->ssid, ssid_len) != 0)
197 if (s->mode == WPAS_MODE_P2P_GO &&
198 s != wpa_s->current_ssid)
201 *go = s->mode == WPAS_MODE_P2P_GO;
210 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
212 struct wpa_ssid *ssid;
216 ssid = wpa_s->current_ssid;
219 * The current SSID was not known, but there may still be a
220 * pending P2P group interface waiting for provisioning.
222 ssid = wpa_s->conf->ssid;
224 if (ssid->p2p_group &&
225 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
226 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
231 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
233 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
234 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
235 wpa_s->reassociate = 0;
236 wpa_s->disconnected = 1;
237 wpa_supplicant_deauthenticate(wpa_s,
238 WLAN_REASON_DEAUTH_LEAVING);
242 if (wpa_s->cross_connect_in_use) {
243 wpa_s->cross_connect_in_use = 0;
244 wpa_msg(wpa_s->parent, MSG_INFO,
245 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
246 wpa_s->ifname, wpa_s->cross_connect_uplink);
248 switch (wpa_s->removal_reason) {
249 case P2P_GROUP_REMOVAL_REQUESTED:
250 reason = " reason=REQUESTED";
252 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
253 reason = " reason=IDLE";
255 case P2P_GROUP_REMOVAL_UNAVAILABLE:
256 reason = " reason=UNAVAILABLE";
262 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
263 wpa_s->ifname, gtype, reason);
265 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
266 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
269 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
271 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
272 struct wpa_global *global;
274 enum wpa_driver_if_type type;
275 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
277 global = wpa_s->global;
278 ifname = os_strdup(wpa_s->ifname);
279 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
280 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
281 wpa_s = global->ifaces;
283 wpa_drv_if_remove(wpa_s, type, ifname);
288 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
289 if (ssid && (ssid->p2p_group ||
290 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
291 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
293 if (ssid == wpa_s->current_ssid) {
294 wpa_sm_set_config(wpa_s->wpa, NULL);
295 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
296 wpa_s->current_ssid = NULL;
299 * Networks objects created during any P2P activities are not
300 * exposed out as they might/will confuse certain non-P2P aware
301 * applications since these network objects won't behave like
304 * Likewise, we don't send out network removed signals for such
307 wpa_config_remove_network(wpa_s->conf, id);
308 wpa_supplicant_clear_status(wpa_s);
309 wpa_supplicant_cancel_sched_scan(wpa_s);
311 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
314 wpa_supplicant_ap_deinit(wpa_s);
318 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
320 const u8 *ssid, size_t ssid_len)
328 if (wpa_s->go_params)
329 bssid = wpa_s->go_params->peer_interface_addr;
331 bssid = wpa_s->bssid;
333 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
335 u8 iface_addr[ETH_ALEN];
336 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
338 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
341 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
342 "group is persistent - BSS " MACSTR " not found",
347 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
349 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
350 "group is persistent - BSS " MACSTR
351 " did not include P2P IE", MAC2STR(bssid));
352 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
353 (u8 *) (bss + 1), bss->ie_len);
354 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
355 ((u8 *) bss + 1) + bss->ie_len,
360 group_capab = p2p_get_group_capab(p2p);
361 addr = p2p_get_go_dev_addr(p2p);
362 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
363 "group_capab=0x%x", group_capab);
365 os_memcpy(go_dev_addr, addr, ETH_ALEN);
366 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
369 os_memset(go_dev_addr, 0, ETH_ALEN);
372 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
373 "go_dev_addr=" MACSTR,
374 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
376 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
380 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
381 struct wpa_ssid *ssid,
382 const u8 *go_dev_addr)
387 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
388 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
389 for (s = wpa_s->conf->ssid; s; s = s->next) {
390 if (s->disabled == 2 &&
391 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
392 s->ssid_len == ssid->ssid_len &&
393 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
398 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
400 if (ssid->passphrase && !s->passphrase)
402 else if (ssid->passphrase && s->passphrase &&
403 os_strcmp(ssid->passphrase, s->passphrase) != 0)
406 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
409 s = wpa_config_add_network(wpa_s->conf);
414 * Instead of network_added we emit persistent_group_added
415 * notification. Also to keep the defense checks in
416 * persistent_group obj registration method, we set the
417 * relevant flags in s to designate it as a persistent group.
420 s->p2p_persistent_group = 1;
421 wpas_notify_persistent_group_added(wpa_s, s);
422 wpa_config_set_network_defaults(s);
426 s->p2p_persistent_group = 1;
429 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
430 s->mode = ssid->mode;
431 s->auth_alg = WPA_AUTH_ALG_OPEN;
432 s->key_mgmt = WPA_KEY_MGMT_PSK;
433 s->proto = WPA_PROTO_RSN;
434 s->pairwise_cipher = WPA_CIPHER_CCMP;
436 if (ssid->passphrase) {
437 os_free(s->passphrase);
438 s->passphrase = os_strdup(ssid->passphrase);
442 os_memcpy(s->psk, ssid->psk, 32);
444 if (s->passphrase && !s->psk_set)
445 wpa_config_update_psk(s);
446 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
448 s->ssid = os_malloc(ssid->ssid_len);
451 s->ssid_len = ssid->ssid_len;
452 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
455 #ifndef CONFIG_NO_CONFIG_WRITE
456 if (changed && wpa_s->conf->update_config &&
457 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
458 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
460 #endif /* CONFIG_NO_CONFIG_WRITE */
466 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
469 struct wpa_ssid *ssid, *s;
473 ssid = wpa_s->current_ssid;
474 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
475 !ssid->p2p_persistent_group)
478 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
479 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
482 if (s->ssid_len == ssid->ssid_len &&
483 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
490 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
491 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
493 return; /* already in list */
496 n = os_realloc(s->p2p_client_list,
497 (s->num_p2p_clients + 1) * ETH_ALEN);
500 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
501 s->p2p_client_list = n;
502 s->num_p2p_clients++;
504 #ifndef CONFIG_NO_CONFIG_WRITE
505 if (wpa_s->parent->conf->update_config &&
506 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
507 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
508 #endif /* CONFIG_NO_CONFIG_WRITE */
512 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
515 struct wpa_ssid *ssid;
516 const char *ssid_txt;
519 u8 go_dev_addr[ETH_ALEN];
523 * This callback is likely called for the main interface. Update wpa_s
524 * to use the group interface if a new interface was created for the
527 if (wpa_s->global->p2p_group_formation)
528 wpa_s = wpa_s->global->p2p_group_formation;
529 wpa_s->global->p2p_group_formation = NULL;
530 wpa_s->p2p_in_provisioning = 0;
533 wpa_msg(wpa_s->parent, MSG_INFO,
534 P2P_EVENT_GROUP_FORMATION_FAILURE);
535 wpas_p2p_group_delete(wpa_s);
539 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
541 ssid = wpa_s->current_ssid;
542 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
543 ssid->mode = WPAS_MODE_P2P_GO;
544 p2p_group_notif_formation_done(wpa_s->p2p_group);
545 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
550 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
551 client = ssid->mode == WPAS_MODE_INFRA;
552 if (ssid->mode == WPAS_MODE_P2P_GO) {
553 persistent = ssid->p2p_persistent_group;
554 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
557 persistent = wpas_p2p_persistent_group(wpa_s,
563 client = wpa_s->p2p_group_interface ==
564 P2P_GROUP_INTERFACE_CLIENT;
565 os_memset(go_dev_addr, 0, ETH_ALEN);
568 wpa_s->show_group_started = 0;
571 * Indicate event only after successfully completed 4-way
572 * handshake, i.e., when the interface is ready for data
575 wpa_s->show_group_started = 1;
576 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
578 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
579 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
580 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
582 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
583 MAC2STR(go_dev_addr),
584 persistent ? " [PERSISTENT]" : "");
585 wpas_p2p_cross_connect_setup(wpa_s);
586 wpas_p2p_set_group_idle_timeout(wpa_s);
588 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
589 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
590 "go_dev_addr=" MACSTR "%s",
591 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
592 ssid && ssid->passphrase ? ssid->passphrase : "",
593 MAC2STR(go_dev_addr),
594 persistent ? " [PERSISTENT]" : "");
595 wpas_p2p_cross_connect_setup(wpa_s);
596 wpas_p2p_set_group_idle_timeout(wpa_s);
600 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
602 if (network_id < 0 && ssid)
603 network_id = ssid->id;
605 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
609 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
611 const u8 *dst, const u8 *src,
613 const u8 *data, size_t data_len,
614 enum offchannel_send_action_result
617 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
619 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
621 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
625 case OFFCHANNEL_SEND_ACTION_SUCCESS:
626 res = P2P_SEND_ACTION_SUCCESS;
628 case OFFCHANNEL_SEND_ACTION_NO_ACK:
629 res = P2P_SEND_ACTION_NO_ACK;
631 case OFFCHANNEL_SEND_ACTION_FAILED:
632 res = P2P_SEND_ACTION_FAILED;
636 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
638 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
639 wpa_s->pending_pd_before_join &&
640 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
641 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
642 wpa_s->pending_pd_before_join = 0;
643 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
644 "join-existing-group operation (no ACK for PD "
646 wpas_p2p_join_start(wpa_s);
651 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
652 const u8 *src, const u8 *bssid, const u8 *buf,
653 size_t len, unsigned int wait_time)
655 struct wpa_supplicant *wpa_s = ctx;
656 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
658 wpas_p2p_send_action_tx_status, 1);
662 static void wpas_send_action_done(void *ctx)
664 struct wpa_supplicant *wpa_s = ctx;
665 offchannel_send_action_done(wpa_s);
669 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
670 struct p2p_go_neg_results *params)
672 if (wpa_s->go_params == NULL) {
673 wpa_s->go_params = os_malloc(sizeof(*params));
674 if (wpa_s->go_params == NULL)
677 os_memcpy(wpa_s->go_params, params, sizeof(*params));
682 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
683 struct p2p_go_neg_results *res)
685 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
686 MAC2STR(res->peer_interface_addr));
687 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
688 res->ssid, res->ssid_len);
689 wpa_supplicant_ap_deinit(wpa_s);
690 wpas_copy_go_neg_results(wpa_s, res);
691 if (res->wps_method == WPS_PBC)
692 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
694 u16 dev_pw_id = DEV_PW_DEFAULT;
695 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
696 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
697 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
698 wpa_s->p2p_pin, 1, dev_pw_id);
703 static void p2p_go_configured(void *ctx, void *data)
705 struct wpa_supplicant *wpa_s = ctx;
706 struct p2p_go_neg_results *params = data;
707 struct wpa_ssid *ssid;
710 ssid = wpa_s->current_ssid;
711 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
712 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
713 if (wpa_s->global->p2p_group_formation == wpa_s)
714 wpa_s->global->p2p_group_formation = NULL;
715 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
716 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
717 "go_dev_addr=" MACSTR "%s",
719 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
721 params->passphrase ? params->passphrase : "",
722 MAC2STR(wpa_s->global->p2p_dev_addr),
723 params->persistent_group ? " [PERSISTENT]" : "");
725 if (params->persistent_group)
726 network_id = wpas_p2p_store_persistent_group(
728 wpa_s->global->p2p_dev_addr);
730 network_id = ssid->id;
731 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
732 wpas_p2p_cross_connect_setup(wpa_s);
733 wpas_p2p_set_group_idle_timeout(wpa_s);
737 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
738 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
739 params->peer_interface_addr)) {
740 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
744 if (params->wps_method == WPS_PBC)
745 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
746 params->peer_device_addr);
747 else if (wpa_s->p2p_pin[0])
748 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
749 wpa_s->p2p_pin, NULL, 0);
750 os_free(wpa_s->go_params);
751 wpa_s->go_params = NULL;
755 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
756 struct p2p_go_neg_results *params,
759 struct wpa_ssid *ssid;
761 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
764 ssid = wpa_config_add_network(wpa_s->conf);
768 wpa_s->show_group_started = 0;
770 wpa_config_set_network_defaults(ssid);
773 ssid->p2p_persistent_group = params->persistent_group;
774 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
776 ssid->frequency = params->freq;
777 ssid->ssid = os_zalloc(params->ssid_len + 1);
779 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
780 ssid->ssid_len = params->ssid_len;
782 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
783 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
784 ssid->proto = WPA_PROTO_RSN;
785 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
786 ssid->passphrase = os_strdup(params->passphrase);
788 wpa_s->ap_configured_cb = p2p_go_configured;
789 wpa_s->ap_configured_cb_ctx = wpa_s;
790 wpa_s->ap_configured_cb_data = wpa_s->go_params;
791 wpa_s->connect_without_scan = ssid;
792 wpa_s->reassociate = 1;
793 wpa_s->disconnected = 0;
794 wpa_supplicant_req_scan(wpa_s, 0, 0);
798 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
799 const struct wpa_supplicant *src)
801 struct wpa_config *d;
802 const struct wpa_config *s;
807 #define C(n) if (s->n) d->n = os_strdup(s->n)
816 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
817 os_memcpy(d->sec_device_type, s->sec_device_type,
818 sizeof(d->sec_device_type));
819 d->num_sec_device_types = s->num_sec_device_types;
821 d->p2p_group_idle = s->p2p_group_idle;
822 d->p2p_intra_bss = s->p2p_intra_bss;
823 d->persistent_reconnect = s->persistent_reconnect;
827 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
828 enum wpa_driver_if_type type)
830 char ifname[120], force_ifname[120];
832 if (wpa_s->pending_interface_name[0]) {
833 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
834 "- skip creation of a new one");
835 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
836 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
837 "unknown?! ifname='%s'",
838 wpa_s->pending_interface_name);
844 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
845 wpa_s->p2p_group_idx);
846 if (os_strlen(ifname) >= IFNAMSIZ &&
847 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
848 /* Try to avoid going over the IFNAMSIZ length limit */
849 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
850 wpa_s->p2p_group_idx);
852 force_ifname[0] = '\0';
854 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
856 wpa_s->p2p_group_idx++;
858 wpa_s->pending_interface_type = type;
859 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
860 wpa_s->pending_interface_addr, NULL) < 0) {
861 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
866 if (force_ifname[0]) {
867 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
869 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
870 sizeof(wpa_s->pending_interface_name));
872 os_strlcpy(wpa_s->pending_interface_name, ifname,
873 sizeof(wpa_s->pending_interface_name));
874 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
875 MACSTR, wpa_s->pending_interface_name,
876 MAC2STR(wpa_s->pending_interface_addr));
882 static void wpas_p2p_remove_pending_group_interface(
883 struct wpa_supplicant *wpa_s)
885 if (!wpa_s->pending_interface_name[0] ||
886 is_zero_ether_addr(wpa_s->pending_interface_addr))
887 return; /* No pending virtual interface */
889 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
890 wpa_s->pending_interface_name);
891 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
892 wpa_s->pending_interface_name);
893 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
894 wpa_s->pending_interface_name[0] = '\0';
898 static struct wpa_supplicant *
899 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
901 struct wpa_interface iface;
902 struct wpa_supplicant *group_wpa_s;
904 if (!wpa_s->pending_interface_name[0]) {
905 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
906 if (!wpas_p2p_create_iface(wpa_s))
909 * Something has forced us to remove the pending interface; try
910 * to create a new one and hope for the best that we will get
911 * the same local address.
913 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
914 WPA_IF_P2P_CLIENT) < 0)
918 os_memset(&iface, 0, sizeof(iface));
919 iface.ifname = wpa_s->pending_interface_name;
920 iface.driver = wpa_s->driver->name;
921 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
922 iface.driver_param = wpa_s->conf->driver_param;
923 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
924 if (group_wpa_s == NULL) {
925 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
926 "wpa_supplicant interface");
929 wpa_s->pending_interface_name[0] = '\0';
930 group_wpa_s->parent = wpa_s;
931 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
932 P2P_GROUP_INTERFACE_CLIENT;
933 wpa_s->global->p2p_group_formation = group_wpa_s;
935 wpas_p2p_clone_config(group_wpa_s, wpa_s);
941 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
944 struct wpa_supplicant *wpa_s = eloop_ctx;
945 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
946 if (wpa_s->global->p2p)
947 p2p_group_formation_failed(wpa_s->global->p2p);
948 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
949 wpa_drv_p2p_group_formation_failed(wpa_s);
950 wpas_group_formation_completed(wpa_s, 0);
954 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
956 struct wpa_supplicant *wpa_s = ctx;
958 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
959 wpa_drv_cancel_remain_on_channel(wpa_s);
960 wpa_s->off_channel_freq = 0;
961 wpa_s->roc_waiting_drv_freq = 0;
965 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
967 wpas_notify_p2p_go_neg_completed(wpa_s, res);
968 wpas_p2p_remove_pending_group_interface(wpa_s);
972 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
973 wpas_notify_p2p_go_neg_completed(wpa_s, res);
975 if (wpa_s->create_p2p_iface) {
976 struct wpa_supplicant *group_wpa_s =
977 wpas_p2p_init_group_interface(wpa_s, res->role_go);
978 if (group_wpa_s == NULL) {
979 wpas_p2p_remove_pending_group_interface(wpa_s);
982 if (group_wpa_s != wpa_s) {
983 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
984 sizeof(group_wpa_s->p2p_pin));
985 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
987 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
988 wpa_s->pending_interface_name[0] = '\0';
989 group_wpa_s->p2p_in_provisioning = 1;
992 wpas_start_wps_go(group_wpa_s, res, 1);
994 wpas_start_wps_enrollee(group_wpa_s, res);
996 wpa_s->p2p_in_provisioning = 1;
997 wpa_s->global->p2p_group_formation = wpa_s;
1000 wpas_start_wps_go(wpa_s, res, 1);
1002 wpas_start_wps_enrollee(ctx, res);
1005 wpa_s->p2p_long_listen = 0;
1006 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1008 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1009 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1010 (res->peer_config_timeout % 100) * 10000,
1011 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1015 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1017 struct wpa_supplicant *wpa_s = ctx;
1018 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1019 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1021 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1025 void wpas_dev_found(void *ctx, const u8 *addr,
1026 const struct p2p_peer_info *info,
1029 #ifndef CONFIG_NO_STDOUT_DEBUG
1030 struct wpa_supplicant *wpa_s = ctx;
1031 char devtype[WPS_DEV_TYPE_BUFSIZE];
1033 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1034 " p2p_dev_addr=" MACSTR
1035 " pri_dev_type=%s name='%s' config_methods=0x%x "
1036 "dev_capab=0x%x group_capab=0x%x",
1037 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1038 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1040 info->device_name, info->config_methods,
1041 info->dev_capab, info->group_capab);
1042 #endif /* CONFIG_NO_STDOUT_DEBUG */
1044 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1048 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1050 struct wpa_supplicant *wpa_s = ctx;
1052 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1053 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1055 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1059 static int wpas_start_listen(void *ctx, unsigned int freq,
1060 unsigned int duration,
1061 const struct wpabuf *probe_resp_ie)
1063 struct wpa_supplicant *wpa_s = ctx;
1065 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1067 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1068 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1069 "report received Probe Request frames");
1073 wpa_s->pending_listen_freq = freq;
1074 wpa_s->pending_listen_duration = duration;
1076 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1077 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1078 "to remain on channel (%u MHz) for Listen "
1080 wpa_s->pending_listen_freq = 0;
1083 wpa_s->off_channel_freq = 0;
1084 wpa_s->roc_waiting_drv_freq = freq;
1090 static void wpas_stop_listen(void *ctx)
1092 struct wpa_supplicant *wpa_s = ctx;
1093 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1094 wpa_drv_cancel_remain_on_channel(wpa_s);
1095 wpa_s->off_channel_freq = 0;
1096 wpa_s->roc_waiting_drv_freq = 0;
1098 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1099 wpa_drv_probe_req_report(wpa_s, 0);
1103 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1105 struct wpa_supplicant *wpa_s = ctx;
1106 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1110 static struct p2p_srv_bonjour *
1111 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1112 const struct wpabuf *query)
1114 struct p2p_srv_bonjour *bsrv;
1117 len = wpabuf_len(query);
1118 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1119 struct p2p_srv_bonjour, list) {
1120 if (len == wpabuf_len(bsrv->query) &&
1121 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1129 static struct p2p_srv_upnp *
1130 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1131 const char *service)
1133 struct p2p_srv_upnp *usrv;
1135 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1136 struct p2p_srv_upnp, list) {
1137 if (version == usrv->version &&
1138 os_strcmp(service, usrv->service) == 0)
1145 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1150 if (wpabuf_tailroom(resp) < 5)
1153 /* Length (to be filled) */
1154 len_pos = wpabuf_put(resp, 2);
1155 wpabuf_put_u8(resp, srv_proto);
1156 wpabuf_put_u8(resp, srv_trans_id);
1158 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1159 /* Response Data: empty */
1160 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1164 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1165 struct wpabuf *resp, u8 srv_trans_id)
1167 struct p2p_srv_bonjour *bsrv;
1170 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1172 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1173 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1177 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1178 struct p2p_srv_bonjour, list) {
1179 if (wpabuf_tailroom(resp) <
1180 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1182 /* Length (to be filled) */
1183 len_pos = wpabuf_put(resp, 2);
1184 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1185 wpabuf_put_u8(resp, srv_trans_id);
1187 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1188 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1189 wpabuf_head(bsrv->resp),
1190 wpabuf_len(bsrv->resp));
1192 wpabuf_put_buf(resp, bsrv->query); /* Key */
1193 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1194 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1200 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1201 struct wpabuf *resp, u8 srv_trans_id,
1202 const u8 *query, size_t query_len)
1204 struct p2p_srv_bonjour *bsrv;
1208 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1210 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1211 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1212 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1217 if (query_len == 0) {
1218 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1222 if (wpabuf_tailroom(resp) < 5)
1224 /* Length (to be filled) */
1225 len_pos = wpabuf_put(resp, 2);
1226 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1227 wpabuf_put_u8(resp, srv_trans_id);
1229 wpabuf_set(&buf, query, query_len);
1230 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1232 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1236 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1237 /* Response Data: empty */
1238 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1244 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1245 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1246 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1248 if (wpabuf_tailroom(resp) >=
1249 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1251 wpabuf_put_buf(resp, bsrv->query); /* Key */
1252 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1254 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1258 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1259 struct wpabuf *resp, u8 srv_trans_id)
1261 struct p2p_srv_upnp *usrv;
1264 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1266 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1267 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1271 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1272 struct p2p_srv_upnp, list) {
1273 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1276 /* Length (to be filled) */
1277 len_pos = wpabuf_put(resp, 2);
1278 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1279 wpabuf_put_u8(resp, srv_trans_id);
1282 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1284 wpabuf_put_u8(resp, usrv->version);
1285 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1287 wpabuf_put_str(resp, usrv->service);
1288 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1294 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1295 struct wpabuf *resp, u8 srv_trans_id,
1296 const u8 *query, size_t query_len)
1298 struct p2p_srv_upnp *usrv;
1304 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1307 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1308 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1309 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1314 if (query_len == 0) {
1315 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1319 if (wpabuf_tailroom(resp) < 5)
1322 /* Length (to be filled) */
1323 len_pos = wpabuf_put(resp, 2);
1324 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1325 wpabuf_put_u8(resp, srv_trans_id);
1328 str = os_malloc(query_len);
1331 os_memcpy(str, query + 1, query_len - 1);
1332 str[query_len - 1] = '\0';
1334 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1335 struct p2p_srv_upnp, list) {
1336 if (version != usrv->version)
1339 if (os_strcmp(str, "ssdp:all") != 0 &&
1340 os_strstr(usrv->service, str) == NULL)
1343 if (wpabuf_tailroom(resp) < 2)
1347 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1349 wpabuf_put_u8(resp, version);
1351 wpabuf_put_u8(resp, ',');
1355 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1357 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1359 wpabuf_put_str(resp, usrv->service);
1364 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1367 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1368 /* Response Data: empty */
1371 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1375 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1376 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1378 struct wpa_supplicant *wpa_s = ctx;
1379 const u8 *pos = tlvs;
1380 const u8 *end = tlvs + tlvs_len;
1383 struct wpabuf *resp;
1384 u8 srv_proto, srv_trans_id;
1388 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1390 buf_len = 2 * tlvs_len + 1;
1391 buf = os_malloc(buf_len);
1393 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1394 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1396 freq, MAC2STR(sa), dialog_token, update_indic,
1401 if (wpa_s->p2p_sd_over_ctrl_iface) {
1402 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1403 update_indic, tlvs, tlvs_len);
1404 return; /* to be processed by an external program */
1407 resp = wpabuf_alloc(10000);
1411 while (pos + 1 < end) {
1412 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1413 slen = WPA_GET_LE16(pos);
1415 if (pos + slen > end || slen < 2) {
1416 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1421 tlv_end = pos + slen;
1424 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1426 srv_trans_id = *pos++;
1427 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1430 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1431 pos, tlv_end - pos);
1434 if (wpa_s->force_long_sd) {
1435 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1437 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1438 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1442 switch (srv_proto) {
1443 case P2P_SERV_ALL_SERVICES:
1444 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1445 "for all services");
1446 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1447 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1448 wpa_printf(MSG_DEBUG, "P2P: No service "
1449 "discovery protocols available");
1450 wpas_sd_add_proto_not_avail(
1451 resp, P2P_SERV_ALL_SERVICES,
1455 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1456 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1458 case P2P_SERV_BONJOUR:
1459 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1460 pos, tlv_end - pos);
1463 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1464 pos, tlv_end - pos);
1467 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1468 "protocol %u", srv_proto);
1469 wpas_sd_add_proto_not_avail(resp, srv_proto,
1478 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1479 update_indic, tlvs, tlvs_len);
1481 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1487 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1488 const u8 *tlvs, size_t tlvs_len)
1490 struct wpa_supplicant *wpa_s = ctx;
1491 const u8 *pos = tlvs;
1492 const u8 *end = tlvs + tlvs_len;
1498 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1500 if (tlvs_len > 1500) {
1501 /* TODO: better way for handling this */
1502 wpa_msg_ctrl(wpa_s, MSG_INFO,
1503 P2P_EVENT_SERV_DISC_RESP MACSTR
1504 " %u <long response: %u bytes>",
1505 MAC2STR(sa), update_indic,
1506 (unsigned int) tlvs_len);
1508 buf_len = 2 * tlvs_len + 1;
1509 buf = os_malloc(buf_len);
1511 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1512 wpa_msg_ctrl(wpa_s, MSG_INFO,
1513 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1514 MAC2STR(sa), update_indic, buf);
1520 u8 srv_proto, srv_trans_id, status;
1522 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1523 slen = WPA_GET_LE16(pos);
1525 if (pos + slen > end || slen < 3) {
1526 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1530 tlv_end = pos + slen;
1533 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1535 srv_trans_id = *pos++;
1536 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1539 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1542 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1543 pos, tlv_end - pos);
1548 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1552 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1553 const struct wpabuf *tlvs)
1555 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1556 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1557 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1559 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1563 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1564 u8 version, const char *query)
1566 struct wpabuf *tlvs;
1569 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1572 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1573 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1574 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1575 wpabuf_put_u8(tlvs, version);
1576 wpabuf_put_str(tlvs, query);
1577 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1583 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
1585 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1586 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
1587 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1589 return p2p_sd_cancel_request(wpa_s->global->p2p,
1590 (void *) (uintptr_t) req);
1594 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1595 const u8 *dst, u8 dialog_token,
1596 const struct wpabuf *resp_tlvs)
1598 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1599 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1603 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1605 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1610 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1612 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1613 wpa_drv_p2p_service_update(wpa_s);
1616 if (wpa_s->global->p2p)
1617 p2p_sd_service_update(wpa_s->global->p2p);
1621 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1623 dl_list_del(&bsrv->list);
1624 wpabuf_free(bsrv->query);
1625 wpabuf_free(bsrv->resp);
1630 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1632 dl_list_del(&usrv->list);
1633 os_free(usrv->service);
1638 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1640 struct p2p_srv_bonjour *bsrv, *bn;
1641 struct p2p_srv_upnp *usrv, *un;
1643 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1644 struct p2p_srv_bonjour, list)
1645 wpas_p2p_srv_bonjour_free(bsrv);
1647 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1648 struct p2p_srv_upnp, list)
1649 wpas_p2p_srv_upnp_free(usrv);
1651 wpas_p2p_sd_service_update(wpa_s);
1655 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1656 struct wpabuf *query, struct wpabuf *resp)
1658 struct p2p_srv_bonjour *bsrv;
1660 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1663 wpabuf_free(bsrv->resp);
1668 bsrv = os_zalloc(sizeof(*bsrv));
1671 bsrv->query = query;
1673 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1675 wpas_p2p_sd_service_update(wpa_s);
1680 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1681 const struct wpabuf *query)
1683 struct p2p_srv_bonjour *bsrv;
1685 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1688 wpas_p2p_srv_bonjour_free(bsrv);
1689 wpas_p2p_sd_service_update(wpa_s);
1694 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1695 const char *service)
1697 struct p2p_srv_upnp *usrv;
1699 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1700 return 0; /* Already listed */
1701 usrv = os_zalloc(sizeof(*usrv));
1704 usrv->version = version;
1705 usrv->service = os_strdup(service);
1706 if (usrv->service == NULL) {
1710 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1712 wpas_p2p_sd_service_update(wpa_s);
1717 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1718 const char *service)
1720 struct p2p_srv_upnp *usrv;
1722 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1725 wpas_p2p_srv_upnp_free(usrv);
1726 wpas_p2p_sd_service_update(wpa_s);
1731 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1732 const u8 *peer, const char *params,
1733 unsigned int generated_pin)
1735 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1736 MAC2STR(peer), generated_pin, params);
1740 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1741 const u8 *peer, const char *params)
1743 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1744 MAC2STR(peer), params);
1748 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1749 const u8 *dev_addr, const u8 *pri_dev_type,
1750 const char *dev_name, u16 supp_config_methods,
1751 u8 dev_capab, u8 group_capab, const u8 *group_id,
1752 size_t group_id_len)
1754 struct wpa_supplicant *wpa_s = ctx;
1755 char devtype[WPS_DEV_TYPE_BUFSIZE];
1757 u8 empty_dev_type[8];
1758 unsigned int generated_pin = 0;
1759 struct wpa_supplicant *group = NULL;
1762 for (group = wpa_s->global->ifaces; group; group = group->next)
1764 struct wpa_ssid *s = group->current_ssid;
1766 s->mode == WPAS_MODE_P2P_GO &&
1767 group_id_len - ETH_ALEN == s->ssid_len &&
1768 os_memcmp(group_id + ETH_ALEN, s->ssid,
1774 if (pri_dev_type == NULL) {
1775 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1776 pri_dev_type = empty_dev_type;
1778 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1779 " pri_dev_type=%s name='%s' config_methods=0x%x "
1780 "dev_capab=0x%x group_capab=0x%x%s%s",
1782 wps_dev_type_bin2str(pri_dev_type, devtype,
1784 dev_name, supp_config_methods, dev_capab, group_capab,
1785 group ? " group=" : "",
1786 group ? group->ifname : "");
1787 params[sizeof(params) - 1] = '\0';
1789 if (config_methods & WPS_CONFIG_DISPLAY) {
1790 generated_pin = wps_generate_pin();
1791 wpas_prov_disc_local_display(wpa_s, peer, params,
1793 } else if (config_methods & WPS_CONFIG_KEYPAD)
1794 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1795 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1796 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1797 "%s", MAC2STR(peer), params);
1799 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1800 P2P_PROV_DISC_SUCCESS,
1801 config_methods, generated_pin);
1805 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1807 struct wpa_supplicant *wpa_s = ctx;
1808 unsigned int generated_pin = 0;
1810 if (wpa_s->pending_pd_before_join &&
1811 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1812 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1813 wpa_s->pending_pd_before_join = 0;
1814 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1815 "join-existing-group operation");
1816 wpas_p2p_join_start(wpa_s);
1820 if (config_methods & WPS_CONFIG_DISPLAY)
1821 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1822 else if (config_methods & WPS_CONFIG_KEYPAD) {
1823 generated_pin = wps_generate_pin();
1824 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1825 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1826 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1829 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1830 P2P_PROV_DISC_SUCCESS,
1831 config_methods, generated_pin);
1835 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1836 enum p2p_prov_disc_status status)
1838 struct wpa_supplicant *wpa_s = ctx;
1840 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1845 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1846 const u8 *go_dev_addr, const u8 *ssid,
1847 size_t ssid_len, int *go, u8 *group_bssid,
1848 int *force_freq, int persistent_group)
1850 struct wpa_supplicant *wpa_s = ctx;
1852 u8 cur_bssid[ETH_ALEN];
1854 struct wpa_supplicant *grp;
1856 if (!persistent_group) {
1857 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1858 " to join an active group", MAC2STR(sa));
1859 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1860 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1862 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1863 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1864 "authorized invitation");
1868 * Do not accept the invitation automatically; notify user and
1871 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1874 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1876 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1877 "running persistent group");
1879 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1883 if (!wpa_s->conf->persistent_reconnect)
1884 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1886 for (s = wpa_s->conf->ssid; s; s = s->next) {
1887 if (s->disabled == 2 &&
1888 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1889 s->ssid_len == ssid_len &&
1890 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1895 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1896 " requested reinvocation of an unknown group",
1898 return P2P_SC_FAIL_UNKNOWN_GROUP;
1901 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1903 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1904 wpa_printf(MSG_DEBUG, "P2P: The only available "
1905 "interface is already in use - reject "
1907 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1909 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1910 } else if (s->mode == WPAS_MODE_P2P_GO) {
1912 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1914 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1915 "interface address for the group");
1916 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1918 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1923 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1924 wpa_s->assoc_freq) {
1925 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1926 "the channel we are already using");
1927 *force_freq = wpa_s->assoc_freq;
1930 res = wpa_drv_shared_freq(wpa_s);
1932 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1933 "with the channel we are already using on a "
1934 "shared interface");
1938 return P2P_SC_SUCCESS;
1942 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1943 const u8 *ssid, size_t ssid_len,
1944 const u8 *go_dev_addr, u8 status,
1947 struct wpa_supplicant *wpa_s = ctx;
1950 for (s = wpa_s->conf->ssid; s; s = s->next) {
1951 if (s->disabled == 2 &&
1952 s->ssid_len == ssid_len &&
1953 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1957 if (status == P2P_SC_SUCCESS) {
1958 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1959 " was accepted; op_freq=%d MHz",
1960 MAC2STR(sa), op_freq);
1962 wpas_p2p_group_add_persistent(
1963 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
1965 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1966 wpa_s->p2p_wps_method);
1971 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1972 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1973 " was rejected (status %u)", MAC2STR(sa), status);
1979 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1980 "sa=" MACSTR " go_dev_addr=" MACSTR
1981 " bssid=" MACSTR " unknown-network",
1982 MAC2STR(sa), MAC2STR(go_dev_addr),
1985 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1986 "sa=" MACSTR " go_dev_addr=" MACSTR
1988 MAC2STR(sa), MAC2STR(go_dev_addr));
1993 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1994 " persistent=%d", MAC2STR(sa), s->id);
1998 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2000 struct wpa_supplicant *wpa_s = ctx;
2001 struct wpa_ssid *ssid;
2004 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2005 "status=%d " MACSTR,
2006 status, MAC2STR(bssid));
2008 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2009 "status=%d ", status);
2011 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2013 if (wpa_s->pending_invite_ssid_id == -1)
2014 return; /* Invitation to active group */
2016 if (status != P2P_SC_SUCCESS) {
2017 wpas_p2p_remove_pending_group_interface(wpa_s);
2021 ssid = wpa_config_get_network(wpa_s->conf,
2022 wpa_s->pending_invite_ssid_id);
2024 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2025 "data matching with invitation");
2029 wpas_p2p_group_add_persistent(wpa_s, ssid,
2030 ssid->mode == WPAS_MODE_P2P_GO, 0);
2034 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2039 if (global->p2p_disallow_freq == NULL)
2042 for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2043 if (freq >= global->p2p_disallow_freq[i].min &&
2044 freq <= global->p2p_disallow_freq[i].max)
2052 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2054 reg->channel[reg->channels] = chan;
2059 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2060 struct p2p_channels *chan)
2064 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2067 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2068 chan->reg_class[cla].reg_class = 81;
2069 chan->reg_class[cla].channels = 0;
2070 for (i = 0; i < 11; i++) {
2071 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2072 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2074 if (chan->reg_class[cla].channels)
2077 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2080 /* Operating class 115 - 5 GHz, channels 36-48 */
2081 chan->reg_class[cla].reg_class = 115;
2082 chan->reg_class[cla].channels = 0;
2083 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2084 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2085 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2086 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2087 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2088 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2089 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2090 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2091 if (chan->reg_class[cla].channels)
2094 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2097 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2098 chan->reg_class[cla].reg_class = 124;
2099 chan->reg_class[cla].channels = 0;
2100 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2101 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2102 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2103 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2104 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2105 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2106 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2107 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2108 if (chan->reg_class[cla].channels)
2111 chan->reg_classes = cla;
2116 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2118 enum hostapd_hw_mode mode)
2122 for (i = 0; i < num_modes; i++) {
2123 if (modes[i].mode == mode)
2131 static int has_channel(struct wpa_global *global,
2132 struct hostapd_hw_modes *mode, u8 chan, int *flags)
2137 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2139 if (wpas_p2p_disallowed_freq(global, freq))
2142 for (i = 0; i < mode->num_channels; i++) {
2143 if (mode->channels[i].chan == chan) {
2145 *flags = mode->channels[i].flag;
2146 return !(mode->channels[i].flag &
2147 (HOSTAPD_CHAN_DISABLED |
2148 HOSTAPD_CHAN_PASSIVE_SCAN |
2149 HOSTAPD_CHAN_NO_IBSS |
2150 HOSTAPD_CHAN_RADAR));
2158 struct p2p_oper_class_map {
2159 enum hostapd_hw_mode mode;
2164 enum { BW20, BW40PLUS, BW40MINUS } bw;
2167 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2168 struct p2p_channels *chan)
2170 struct hostapd_hw_modes *mode;
2172 struct p2p_oper_class_map op_class[] = {
2173 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2174 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2175 #if 0 /* Do not enable HT40 on 2 GHz for now */
2176 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2177 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2179 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2180 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2181 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2182 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2183 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2184 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2185 { -1, 0, 0, 0, 0, BW20 }
2188 if (wpa_s->hw.modes == NULL) {
2189 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2190 "of all supported channels; assume dualband "
2192 return wpas_p2p_default_channels(wpa_s, chan);
2197 for (op = 0; op_class[op].op_class; op++) {
2198 struct p2p_oper_class_map *o = &op_class[op];
2200 struct p2p_reg_class *reg = NULL;
2202 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2205 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2207 if (!has_channel(wpa_s->global, mode, ch, &flag))
2209 if (o->bw == BW40MINUS &&
2210 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2211 !has_channel(wpa_s->global, mode, ch - 4, NULL)))
2213 if (o->bw == BW40PLUS &&
2214 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2215 !has_channel(wpa_s->global, mode, ch + 4, NULL)))
2218 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2219 "class %u", o->op_class);
2220 reg = &chan->reg_class[cla];
2222 reg->reg_class = o->op_class;
2224 reg->channel[reg->channels] = ch;
2228 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2229 reg->channel, reg->channels);
2233 chan->reg_classes = cla;
2239 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2242 struct wpa_supplicant *wpa_s = ctx;
2244 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2245 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2251 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2255 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2257 struct wpa_supplicant *wpa_s = ctx;
2259 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2260 struct wpa_ssid *ssid = wpa_s->current_ssid;
2263 if (ssid->mode != WPAS_MODE_INFRA)
2265 if (wpa_s->wpa_state != WPA_COMPLETED &&
2266 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2268 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2277 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2278 * @global: Pointer to global data from wpa_supplicant_init()
2279 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2280 * Returns: 0 on success, -1 on failure
2282 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2284 struct p2p_config p2p;
2288 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2294 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2295 struct p2p_params params;
2297 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2298 os_memset(¶ms, 0, sizeof(params));
2299 params.dev_name = wpa_s->conf->device_name;
2300 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2302 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2303 os_memcpy(params.sec_dev_type,
2304 wpa_s->conf->sec_device_type,
2305 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2307 if (wpa_drv_p2p_set_params(wpa_s, ¶ms) < 0)
2313 os_memset(&p2p, 0, sizeof(p2p));
2314 p2p.msg_ctx = wpa_s;
2316 p2p.p2p_scan = wpas_p2p_scan;
2317 p2p.send_action = wpas_send_action;
2318 p2p.send_action_done = wpas_send_action_done;
2319 p2p.go_neg_completed = wpas_go_neg_completed;
2320 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2321 p2p.dev_found = wpas_dev_found;
2322 p2p.dev_lost = wpas_dev_lost;
2323 p2p.start_listen = wpas_start_listen;
2324 p2p.stop_listen = wpas_stop_listen;
2325 p2p.send_probe_resp = wpas_send_probe_resp;
2326 p2p.sd_request = wpas_sd_request;
2327 p2p.sd_response = wpas_sd_response;
2328 p2p.prov_disc_req = wpas_prov_disc_req;
2329 p2p.prov_disc_resp = wpas_prov_disc_resp;
2330 p2p.prov_disc_fail = wpas_prov_disc_fail;
2331 p2p.invitation_process = wpas_invitation_process;
2332 p2p.invitation_received = wpas_invitation_received;
2333 p2p.invitation_result = wpas_invitation_result;
2334 p2p.get_noa = wpas_get_noa;
2335 p2p.go_connected = wpas_go_connected;
2337 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2338 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
2339 p2p.dev_name = wpa_s->conf->device_name;
2340 p2p.manufacturer = wpa_s->conf->manufacturer;
2341 p2p.model_name = wpa_s->conf->model_name;
2342 p2p.model_number = wpa_s->conf->model_number;
2343 p2p.serial_number = wpa_s->conf->serial_number;
2345 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2346 p2p.config_methods = wpa_s->wps->config_methods;
2349 if (wpa_s->conf->p2p_listen_reg_class &&
2350 wpa_s->conf->p2p_listen_channel) {
2351 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2352 p2p.channel = wpa_s->conf->p2p_listen_channel;
2356 * Pick one of the social channels randomly as the listen
2359 os_get_random((u8 *) &r, sizeof(r));
2360 p2p.channel = 1 + (r % 3) * 5;
2362 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2364 if (wpa_s->conf->p2p_oper_reg_class &&
2365 wpa_s->conf->p2p_oper_channel) {
2366 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2367 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2368 p2p.cfg_op_channel = 1;
2369 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2370 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2373 p2p.op_reg_class = 81;
2375 * Use random operation channel from (1, 6, 11) if no other
2376 * preference is indicated.
2378 os_get_random((u8 *) &r, sizeof(r));
2379 p2p.op_channel = 1 + (r % 3) * 5;
2380 p2p.cfg_op_channel = 0;
2381 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2382 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2384 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2385 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2386 p2p.country[2] = 0x04;
2388 os_memcpy(p2p.country, "XX\x04", 3);
2390 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2391 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2396 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2399 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2400 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2401 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2403 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2404 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2406 p2p.max_peers = 100;
2408 if (wpa_s->conf->p2p_ssid_postfix) {
2409 p2p.ssid_postfix_len =
2410 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2411 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2412 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2413 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2414 p2p.ssid_postfix_len);
2417 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2419 global->p2p = p2p_init(&p2p);
2420 if (global->p2p == NULL)
2423 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2424 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2426 p2p_add_wps_vendor_extension(
2427 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2435 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2436 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2438 * This function deinitialize per-interface P2P data.
2440 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2442 if (wpa_s->driver && wpa_s->drv_priv)
2443 wpa_drv_probe_req_report(wpa_s, 0);
2445 if (wpa_s->go_params) {
2446 /* Clear any stored provisioning info */
2447 p2p_clear_provisioning_info(
2449 wpa_s->go_params->peer_interface_addr);
2452 os_free(wpa_s->go_params);
2453 wpa_s->go_params = NULL;
2454 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2455 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2456 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
2457 wpa_s->p2p_long_listen = 0;
2458 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2459 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2460 wpas_p2p_remove_pending_group_interface(wpa_s);
2462 /* TODO: remove group interface from the driver if this wpa_s instance
2463 * is on top of a P2P group interface */
2468 * wpas_p2p_deinit_global - Deinitialize global P2P module
2469 * @global: Pointer to global data from wpa_supplicant_init()
2471 * This function deinitializes the global (per device) P2P module.
2473 void wpas_p2p_deinit_global(struct wpa_global *global)
2475 struct wpa_supplicant *wpa_s, *tmp;
2478 if (global->p2p == NULL)
2481 /* Remove remaining P2P group interfaces */
2482 wpa_s = global->ifaces;
2484 wpas_p2p_service_flush(wpa_s);
2485 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2486 wpa_s = wpa_s->next;
2488 enum wpa_driver_if_type type;
2489 tmp = global->ifaces;
2492 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2497 ifname = os_strdup(tmp->ifname);
2498 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2499 wpa_supplicant_remove_iface(global, tmp, 0);
2501 wpa_drv_if_remove(wpa_s, type, ifname);
2506 * Deinit GO data on any possibly remaining interface (if main
2507 * interface is used as GO).
2509 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2510 if (wpa_s->ap_iface)
2511 wpas_p2p_group_deinit(wpa_s);
2514 p2p_deinit(global->p2p);
2519 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2521 if (wpa_s->drv_flags &
2522 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2523 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2524 return 1; /* P2P group requires a new interface in every case
2526 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2527 return 0; /* driver does not support concurrent operations */
2528 if (wpa_s->global->ifaces->next)
2529 return 1; /* more that one interface already in use */
2530 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2531 return 1; /* this interface is already in use */
2536 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2537 const u8 *peer_addr,
2538 enum p2p_wps_method wps_method,
2539 int go_intent, const u8 *own_interface_addr,
2540 unsigned int force_freq, int persistent_group)
2542 if (persistent_group && wpa_s->conf->persistent_reconnect)
2543 persistent_group = 2;
2545 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2546 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2547 go_intent, own_interface_addr,
2548 force_freq, persistent_group);
2551 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2552 go_intent, own_interface_addr, force_freq,
2557 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2558 const u8 *peer_addr,
2559 enum p2p_wps_method wps_method,
2560 int go_intent, const u8 *own_interface_addr,
2561 unsigned int force_freq, int persistent_group)
2563 if (persistent_group && wpa_s->conf->persistent_reconnect)
2564 persistent_group = 2;
2566 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2569 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2570 go_intent, own_interface_addr, force_freq,
2575 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2577 wpa_s->p2p_join_scan_count++;
2578 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2579 wpa_s->p2p_join_scan_count);
2580 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2581 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2582 " for join operationg - stop join attempt",
2583 MAC2STR(wpa_s->pending_join_iface_addr));
2584 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2585 wpa_msg(wpa_s->parent, MSG_INFO,
2586 P2P_EVENT_GROUP_FORMATION_FAILURE);
2591 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
2593 struct wpa_supplicant *wpa_s = eloop_ctx;
2594 if (!wpa_s->pending_pd_before_join)
2597 * Provision Discovery Response may have been lost - try to connect
2598 * anyway since we do not need any information from this PD.
2600 wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
2601 "try to connect anyway");
2602 wpas_p2p_join_start(wpa_s);
2606 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2607 struct wpa_scan_results *scan_res)
2609 struct wpa_bss *bss;
2611 u8 iface_addr[ETH_ALEN];
2613 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2615 if (wpa_s->global->p2p_disabled)
2618 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2619 scan_res ? (int) scan_res->num : -1);
2622 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2624 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2625 wpa_s->pending_join_iface_addr);
2627 p2p_get_interface_addr(wpa_s->global->p2p,
2628 wpa_s->pending_join_dev_addr,
2630 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2632 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2633 "address for join from " MACSTR " to " MACSTR
2634 " based on newly discovered P2P peer entry",
2635 MAC2STR(wpa_s->pending_join_iface_addr),
2636 MAC2STR(iface_addr));
2637 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2640 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2641 wpa_s->pending_join_iface_addr);
2644 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2645 "from P2P peer table: %d MHz", freq);
2647 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2650 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2651 "from BSS table: %d MHz", freq);
2656 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2657 "prior to joining an existing group (GO " MACSTR
2659 MAC2STR(wpa_s->pending_join_dev_addr), freq);
2660 wpa_s->pending_pd_before_join = 1;
2662 switch (wpa_s->pending_join_wps_method) {
2663 case WPS_PIN_DISPLAY:
2664 method = WPS_CONFIG_KEYPAD;
2666 case WPS_PIN_KEYPAD:
2667 method = WPS_CONFIG_DISPLAY;
2670 method = WPS_CONFIG_PUSHBUTTON;
2677 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
2678 wpa_s->pending_join_dev_addr) ==
2681 * We have already performed provision discovery for
2682 * joining the group. Proceed directly to join
2683 * operation without duplicated provision discovery. */
2684 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
2685 "with " MACSTR " already done - proceed to "
2687 MAC2STR(wpa_s->pending_join_dev_addr));
2688 wpa_s->pending_pd_before_join = 0;
2692 if (p2p_prov_disc_req(wpa_s->global->p2p,
2693 wpa_s->pending_join_dev_addr, method, 1,
2695 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2696 "Discovery Request before joining an "
2698 wpa_s->pending_pd_before_join = 0;
2703 * Actual join operation will be started from the Action frame
2704 * TX status callback (if no ACK is received) or when the
2705 * Provision Discovery Response is received. Use a short
2706 * timeout as a backup mechanism should the Provision Discovery
2707 * Response be lost for any reason.
2709 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
2711 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
2716 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2717 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2718 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2719 wpas_p2p_check_join_scan_limit(wpa_s);
2723 /* Start join operation immediately */
2724 wpas_p2p_join_start(wpa_s);
2728 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2730 struct wpa_supplicant *wpa_s = eloop_ctx;
2732 struct wpa_driver_scan_params params;
2733 struct wpabuf *wps_ie, *ies;
2736 os_memset(¶ms, 0, sizeof(params));
2738 /* P2P Wildcard SSID */
2739 params.num_ssids = 1;
2740 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2741 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2743 wpa_s->wps->dev.p2p = 1;
2744 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
2745 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
2747 if (wps_ie == NULL) {
2748 wpas_p2p_scan_res_join(wpa_s, NULL);
2752 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
2753 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
2755 wpabuf_free(wps_ie);
2756 wpas_p2p_scan_res_join(wpa_s, NULL);
2759 wpabuf_put_buf(ies, wps_ie);
2760 wpabuf_free(wps_ie);
2762 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
2764 params.p2p_probe = 1;
2765 params.extra_ies = wpabuf_head(ies);
2766 params.extra_ies_len = wpabuf_len(ies);
2769 * Run a scan to update BSS table and start Provision Discovery once
2770 * the new scan results become available.
2772 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2773 ret = wpa_drv_scan(wpa_s, ¶ms);
2778 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2780 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2781 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2782 wpas_p2p_check_join_scan_limit(wpa_s);
2787 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2788 const u8 *dev_addr, enum p2p_wps_method wps_method)
2790 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2791 MACSTR " dev " MACSTR ")",
2792 MAC2STR(iface_addr), MAC2STR(dev_addr));
2794 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2795 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2796 wpa_s->pending_join_wps_method = wps_method;
2798 /* Make sure we are not running find during connection establishment */
2799 wpas_p2p_stop_find(wpa_s);
2801 wpa_s->p2p_join_scan_count = 0;
2802 wpas_p2p_join_scan(wpa_s, NULL);
2807 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2809 struct wpa_supplicant *group;
2810 struct p2p_go_neg_results res;
2811 struct wpa_bss *bss;
2813 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
2814 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2817 if (group != wpa_s) {
2818 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2819 sizeof(group->p2p_pin));
2820 group->p2p_wps_method = wpa_s->p2p_wps_method;
2823 group->p2p_in_provisioning = 1;
2825 os_memset(&res, 0, sizeof(res));
2826 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2828 res.wps_method = wpa_s->pending_join_wps_method;
2829 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2831 res.freq = bss->freq;
2832 res.ssid_len = bss->ssid_len;
2833 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
2836 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2837 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
2839 wpa_drv_cancel_remain_on_channel(wpa_s);
2840 wpa_s->off_channel_freq = 0;
2841 wpa_s->roc_waiting_drv_freq = 0;
2843 wpas_start_wps_enrollee(group, &res);
2846 * Allow a longer timeout for join-a-running-group than normal 15
2847 * second group formation timeout since the GO may not have authorized
2848 * our connection yet.
2850 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2851 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2859 * wpas_p2p_connect - Request P2P Group Formation to be started
2860 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2861 * @peer_addr: Address of the peer P2P Device
2862 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2863 * @persistent_group: Whether to create a persistent group
2864 * @join: Whether to join an existing group (as a client) instead of starting
2865 * Group Owner negotiation; @peer_addr is BSSID in that case
2866 * @auth: Whether to only authorize the connection instead of doing that and
2867 * initiating Group Owner negotiation
2868 * @go_intent: GO Intent or -1 to use default
2869 * @freq: Frequency for the group or 0 for auto-selection
2870 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2871 * failure, -2 on failure due to channel not currently available,
2872 * -3 if forced channel is not supported
2874 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2875 const char *pin, enum p2p_wps_method wps_method,
2876 int persistent_group, int join, int auth, int go_intent,
2879 int force_freq = 0, oper_freq = 0;
2882 enum wpa_driver_if_type iftype;
2885 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2889 go_intent = wpa_s->conf->p2p_go_intent;
2892 wpa_s->p2p_long_listen = 0;
2894 wpa_s->p2p_wps_method = wps_method;
2897 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2898 else if (wps_method == WPS_PIN_DISPLAY) {
2899 ret = wps_generate_pin();
2900 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2902 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2905 wpa_s->p2p_pin[0] = '\0';
2908 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2910 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2911 "connect a running group from " MACSTR,
2912 MAC2STR(peer_addr));
2913 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2916 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2917 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2919 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2920 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2923 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2929 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2931 oper_freq = wpa_s->assoc_freq;
2933 oper_freq = wpa_drv_shared_freq(wpa_s);
2939 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2940 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2941 "(%u MHz) is not supported for P2P uses",
2946 if (oper_freq > 0 && freq != oper_freq &&
2947 !(wpa_s->drv_flags &
2948 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2949 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2950 "on %u MHz while connected on another "
2951 "channel (%u MHz)", freq, oper_freq);
2954 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2955 "requested channel (%u MHz)", freq);
2957 } else if (oper_freq > 0 &&
2958 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2959 if (!(wpa_s->drv_flags &
2960 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2961 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2962 "while connected on non-P2P supported "
2963 "channel (%u MHz)", oper_freq);
2966 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2967 "(%u MHz) not available for P2P - try to use "
2968 "another channel", oper_freq);
2970 } else if (oper_freq > 0) {
2971 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2972 "channel we are already using (%u MHz) on another "
2973 "interface", oper_freq);
2974 force_freq = oper_freq;
2977 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2979 if (wpa_s->create_p2p_iface) {
2980 /* Prepare to add a new interface for the group */
2981 iftype = WPA_IF_P2P_GROUP;
2982 if (go_intent == 15)
2983 iftype = WPA_IF_P2P_GO;
2984 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2985 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2986 "interface for the group");
2990 if_addr = wpa_s->pending_interface_addr;
2992 if_addr = wpa_s->own_addr;
2995 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2997 force_freq, persistent_group) < 0)
3002 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3003 go_intent, if_addr, force_freq,
3004 persistent_group) < 0) {
3005 if (wpa_s->create_p2p_iface)
3006 wpas_p2p_remove_pending_group_interface(wpa_s);
3014 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3015 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3016 * @freq: Frequency of the channel in MHz
3017 * @duration: Duration of the stay on the channel in milliseconds
3019 * This callback is called when the driver indicates that it has started the
3020 * requested remain-on-channel duration.
3022 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3023 unsigned int freq, unsigned int duration)
3025 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3027 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3028 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3029 wpa_s->pending_listen_duration);
3030 wpa_s->pending_listen_freq = 0;
3035 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3036 unsigned int timeout)
3038 /* Limit maximum Listen state time based on driver limitation. */
3039 if (timeout > wpa_s->max_remain_on_chan)
3040 timeout = wpa_s->max_remain_on_chan;
3042 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3043 return wpa_drv_p2p_listen(wpa_s, timeout);
3045 return p2p_listen(wpa_s->global->p2p, timeout);
3050 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3051 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3052 * @freq: Frequency of the channel in MHz
3054 * This callback is called when the driver indicates that a remain-on-channel
3055 * operation has been completed, i.e., the duration on the requested channel
3058 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3061 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3062 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3063 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3064 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3066 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3067 return; /* P2P module started a new operation */
3068 if (wpa_s->pending_action_tx)
3070 if (wpa_s->p2p_long_listen > 0)
3071 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3072 if (wpa_s->p2p_long_listen > 0) {
3073 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3074 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3080 * wpas_p2p_group_remove - Remove a P2P group
3081 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3082 * @ifname: Network interface name of the group interface or "*" to remove all
3084 * Returns: 0 on success, -1 on failure
3086 * This function is used to remove a P2P group. This can be used to disconnect
3087 * from a group in which the local end is a P2P Client or to end a P2P Group in
3088 * case the local end is the Group Owner. If a virtual network interface was
3089 * created for this group, that interface will be removed. Otherwise, only the
3090 * configured P2P group network will be removed from the interface.
3092 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3094 struct wpa_global *global = wpa_s->global;
3096 if (os_strcmp(ifname, "*") == 0) {
3097 struct wpa_supplicant *prev;
3098 wpa_s = global->ifaces;
3101 wpa_s = wpa_s->next;
3102 wpas_p2p_disconnect(prev);
3107 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3108 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3112 return wpas_p2p_disconnect(wpa_s);
3116 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3117 struct p2p_go_neg_results *params,
3123 os_memset(params, 0, sizeof(*params));
3124 params->role_go = 1;
3126 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3127 "frequency %d MHz", freq);
3128 params->freq = freq;
3129 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3130 wpa_s->conf->p2p_oper_channel >= 1 &&
3131 wpa_s->conf->p2p_oper_channel <= 11) {
3132 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3133 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3134 "frequency %d MHz", params->freq);
3135 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3136 wpa_s->conf->p2p_oper_reg_class == 124) {
3137 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3138 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3139 "frequency %d MHz", params->freq);
3140 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3141 wpa_s->best_overall_freq > 0 &&
3142 p2p_supported_freq(wpa_s->global->p2p,
3143 wpa_s->best_overall_freq)) {
3144 params->freq = wpa_s->best_overall_freq;
3145 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3146 "channel %d MHz", params->freq);
3147 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3148 wpa_s->best_24_freq > 0 &&
3149 p2p_supported_freq(wpa_s->global->p2p,
3150 wpa_s->best_24_freq)) {
3151 params->freq = wpa_s->best_24_freq;
3152 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3153 "channel %d MHz", params->freq);
3154 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3155 wpa_s->best_5_freq > 0 &&
3156 p2p_supported_freq(wpa_s->global->p2p,
3157 wpa_s->best_5_freq)) {
3158 params->freq = wpa_s->best_5_freq;
3159 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3160 "channel %d MHz", params->freq);
3163 for (chan = 0; chan < 11; chan++) {
3164 params->freq = 2412 + chan * 5;
3165 if (!wpas_p2p_disallowed_freq(wpa_s->global,
3170 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3174 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3175 "known)", params->freq);
3178 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3179 wpa_s->assoc_freq && !freq) {
3180 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3182 params->freq = wpa_s->assoc_freq;
3185 res = wpa_drv_shared_freq(wpa_s);
3186 if (res > 0 && !freq) {
3187 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3188 "already using on a shared interface");
3190 } else if (res > 0 && freq != res &&
3191 !(wpa_s->drv_flags &
3192 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3193 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3194 "while connected on another channel (%u MHz)",
3203 static struct wpa_supplicant *
3204 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3207 struct wpa_supplicant *group_wpa_s;
3209 if (!wpas_p2p_create_iface(wpa_s))
3212 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3213 WPA_IF_P2P_CLIENT) < 0)
3215 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3216 if (group_wpa_s == NULL) {
3217 wpas_p2p_remove_pending_group_interface(wpa_s);
3226 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3227 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3228 * @persistent_group: Whether to create a persistent group
3229 * @freq: Frequency for the group or 0 to indicate no hardcoding
3230 * Returns: 0 on success, -1 on failure
3232 * This function creates a new P2P group with the local end as the Group Owner,
3233 * i.e., without using Group Owner Negotiation.
3235 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3238 struct p2p_go_neg_results params;
3241 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3244 /* Make sure we are not running find during connection establishment */
3245 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3246 wpas_p2p_stop_find(wpa_s);
3249 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3251 if (wpa_s->best_24_freq > 0 &&
3252 p2p_supported_freq(wpa_s->global->p2p,
3253 wpa_s->best_24_freq)) {
3254 freq = wpa_s->best_24_freq;
3255 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3256 "channel: %d MHz", freq);
3258 os_get_random((u8 *) &r, sizeof(r));
3259 freq = 2412 + (r % 3) * 25;
3260 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3261 "channel: %d MHz", freq);
3266 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3268 if (wpa_s->best_5_freq > 0 &&
3269 p2p_supported_freq(wpa_s->global->p2p,
3270 wpa_s->best_5_freq)) {
3271 freq = wpa_s->best_5_freq;
3272 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3273 "channel: %d MHz", freq);
3275 os_get_random((u8 *) &r, sizeof(r));
3276 freq = 5180 + (r % 4) * 20;
3277 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3278 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3279 "5 GHz channel for P2P group");
3282 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3283 "channel: %d MHz", freq);
3287 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3288 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3289 "(%u MHz) is not supported for P2P uses",
3294 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq))
3296 p2p_go_params(wpa_s->global->p2p, ¶ms);
3297 params.persistent_group = persistent_group;
3299 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3302 wpas_start_wps_go(wpa_s, ¶ms, 0);
3308 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3309 struct wpa_ssid *params, int addr_allocated)
3311 struct wpa_ssid *ssid;
3313 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3317 wpa_supplicant_ap_deinit(wpa_s);
3319 ssid = wpa_config_add_network(wpa_s->conf);
3322 wpa_config_set_network_defaults(ssid);
3323 ssid->temporary = 1;
3324 ssid->proto = WPA_PROTO_RSN;
3325 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3326 ssid->group_cipher = WPA_CIPHER_CCMP;
3327 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3328 ssid->ssid = os_malloc(params->ssid_len);
3329 if (ssid->ssid == NULL) {
3330 wpa_config_remove_network(wpa_s->conf, ssid->id);
3333 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3334 ssid->ssid_len = params->ssid_len;
3335 ssid->p2p_group = 1;
3336 ssid->export_keys = 1;
3337 if (params->psk_set) {
3338 os_memcpy(ssid->psk, params->psk, 32);
3341 if (params->passphrase)
3342 ssid->passphrase = os_strdup(params->passphrase);
3344 wpa_supplicant_select_network(wpa_s, ssid);
3346 wpa_s->show_group_started = 1;
3352 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3353 struct wpa_ssid *ssid, int addr_allocated,
3356 struct p2p_go_neg_results params;
3359 if (ssid->disabled != 2 || ssid->ssid == NULL)
3362 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3363 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3364 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3369 /* Make sure we are not running find during connection establishment */
3370 wpas_p2p_stop_find(wpa_s);
3372 if (ssid->mode == WPAS_MODE_INFRA)
3373 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3375 if (ssid->mode != WPAS_MODE_P2P_GO)
3378 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq))
3382 if (ssid->passphrase == NULL ||
3383 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3384 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3388 os_strlcpy(params.passphrase, ssid->passphrase,
3389 sizeof(params.passphrase));
3390 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3391 params.ssid_len = ssid->ssid_len;
3392 params.persistent_group = 1;
3394 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3398 wpas_start_wps_go(wpa_s, ¶ms, 0);
3404 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3405 struct wpabuf *proberesp_ies)
3407 struct wpa_supplicant *wpa_s = ctx;
3408 if (wpa_s->ap_iface) {
3409 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3410 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3411 wpabuf_free(beacon_ies);
3412 wpabuf_free(proberesp_ies);
3416 wpabuf_free(hapd->p2p_beacon_ie);
3417 hapd->p2p_beacon_ie = beacon_ies;
3419 wpabuf_free(hapd->p2p_probe_resp_ie);
3420 hapd->p2p_probe_resp_ie = proberesp_ies;
3422 wpabuf_free(beacon_ies);
3423 wpabuf_free(proberesp_ies);
3425 wpa_supplicant_ap_update_beacon(wpa_s);
3429 static void wpas_p2p_idle_update(void *ctx, int idle)
3431 struct wpa_supplicant *wpa_s = ctx;
3432 if (!wpa_s->ap_iface)
3434 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3436 wpas_p2p_set_group_idle_timeout(wpa_s);
3438 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3442 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3443 int persistent_group,
3444 int group_formation)
3446 struct p2p_group *group;
3447 struct p2p_group_config *cfg;
3449 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3451 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3454 cfg = os_zalloc(sizeof(*cfg));
3458 if (persistent_group && wpa_s->conf->persistent_reconnect)
3459 cfg->persistent_group = 2;
3460 else if (persistent_group)
3461 cfg->persistent_group = 1;
3462 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3463 if (wpa_s->max_stations &&
3464 wpa_s->max_stations < wpa_s->conf->max_num_sta)
3465 cfg->max_clients = wpa_s->max_stations;
3467 cfg->max_clients = wpa_s->conf->max_num_sta;
3468 cfg->cb_ctx = wpa_s;
3469 cfg->ie_update = wpas_p2p_ie_update;
3470 cfg->idle_update = wpas_p2p_idle_update;
3472 group = p2p_group_init(wpa_s->global->p2p, cfg);
3475 if (!group_formation)
3476 p2p_group_notif_formation_done(group);
3477 wpa_s->p2p_group = group;
3482 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3485 if (!wpa_s->p2p_in_provisioning) {
3486 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3487 "provisioning not in progress");
3491 /* Clear any stored provisioning info */
3492 p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr);
3494 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3496 if (wpa_s->global->p2p)
3497 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3498 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3499 wpa_drv_wps_success_cb(wpa_s, peer_addr);
3500 wpas_group_formation_completed(wpa_s, 1);
3504 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3505 struct wps_event_fail *fail)
3507 if (!wpa_s->p2p_in_provisioning) {
3508 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3509 "provisioning not in progress");
3513 if (wpa_s->go_params) {
3514 p2p_clear_provisioning_info(
3516 wpa_s->go_params->peer_interface_addr);
3519 wpas_notify_p2p_wps_failed(wpa_s, fail);
3523 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3524 const char *config_method, int join)
3528 if (os_strncmp(config_method, "display", 7) == 0)
3529 config_methods = WPS_CONFIG_DISPLAY;
3530 else if (os_strncmp(config_method, "keypad", 6) == 0)
3531 config_methods = WPS_CONFIG_KEYPAD;
3532 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
3533 os_strncmp(config_method, "pushbutton", 10) == 0)
3534 config_methods = WPS_CONFIG_PUSHBUTTON;
3536 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
3540 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3541 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
3542 config_methods, join);
3545 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
3548 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3549 config_methods, join, 0);
3553 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3556 return p2p_scan_result_text(ies, ies_len, buf, end);
3560 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3562 if (!wpa_s->pending_action_tx)
3565 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3566 "operation request");
3567 wpabuf_free(wpa_s->pending_action_tx);
3568 wpa_s->pending_action_tx = NULL;
3572 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3573 enum p2p_discovery_type type,
3574 unsigned int num_req_dev_types, const u8 *req_dev_types,
3577 wpas_p2p_clear_pending_action_tx(wpa_s);
3578 wpa_s->p2p_long_listen = 0;
3580 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3581 return wpa_drv_p2p_find(wpa_s, timeout, type);
3583 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3586 wpa_supplicant_cancel_sched_scan(wpa_s);
3588 return p2p_find(wpa_s->global->p2p, timeout, type,
3589 num_req_dev_types, req_dev_types, dev_id);
3593 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3595 wpas_p2p_clear_pending_action_tx(wpa_s);
3596 wpa_s->p2p_long_listen = 0;
3597 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3598 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3599 wpa_s->p2p_cb_on_scan_complete = 0;
3601 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3602 wpa_drv_p2p_stop_find(wpa_s);
3606 if (wpa_s->global->p2p)
3607 p2p_stop_find(wpa_s->global->p2p);
3609 wpas_p2p_remove_pending_group_interface(wpa_s);
3613 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3615 struct wpa_supplicant *wpa_s = eloop_ctx;
3616 wpa_s->p2p_long_listen = 0;
3620 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3624 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3627 wpa_supplicant_cancel_sched_scan(wpa_s);
3628 wpas_p2p_clear_pending_action_tx(wpa_s);
3632 * This is a request for unlimited Listen state. However, at
3633 * least for now, this is mapped to a Listen state for one
3638 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3639 wpa_s->p2p_long_listen = 0;
3642 * Stop previous find/listen operation to avoid trying to request a new
3643 * remain-on-channel operation while the driver is still running the
3646 if (wpa_s->global->p2p)
3647 p2p_stop_find(wpa_s->global->p2p);
3649 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3650 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3651 wpa_s->p2p_long_listen = timeout * 1000;
3652 eloop_register_timeout(timeout, 0,
3653 wpas_p2p_long_listen_timeout,
3661 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3662 u8 *buf, size_t len, int p2p_group)
3664 struct wpabuf *p2p_ie;
3667 if (wpa_s->global->p2p_disabled)
3669 if (wpa_s->global->p2p == NULL)
3674 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3675 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3677 wpabuf_free(p2p_ie);
3683 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3684 const u8 *dst, const u8 *bssid,
3685 const u8 *ie, size_t ie_len)
3687 if (wpa_s->global->p2p_disabled)
3689 if (wpa_s->global->p2p == NULL)
3692 return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
3697 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3698 const u8 *sa, const u8 *bssid,
3699 u8 category, const u8 *data, size_t len, int freq)
3701 if (wpa_s->global->p2p_disabled)
3703 if (wpa_s->global->p2p == NULL)
3706 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3711 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3713 if (wpa_s->global->p2p_disabled)
3715 if (wpa_s->global->p2p == NULL)
3718 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
3722 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3724 p2p_group_deinit(wpa_s->p2p_group);
3725 wpa_s->p2p_group = NULL;
3727 wpa_s->ap_configured_cb = NULL;
3728 wpa_s->ap_configured_cb_ctx = NULL;
3729 wpa_s->ap_configured_cb_data = NULL;
3730 wpa_s->connect_without_scan = NULL;
3734 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3736 wpa_s->p2p_long_listen = 0;
3738 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3739 return wpa_drv_p2p_reject(wpa_s, addr);
3741 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3744 return p2p_reject(wpa_s->global->p2p, addr);
3748 /* Invite to reinvoke a persistent group */
3749 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3750 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3752 enum p2p_invite_role role;
3755 if (ssid->mode == WPAS_MODE_P2P_GO) {
3756 role = P2P_INVITE_ROLE_GO;
3757 if (peer_addr == NULL) {
3758 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3759 "address in invitation command");
3762 if (wpas_p2p_create_iface(wpa_s)) {
3763 if (wpas_p2p_add_group_interface(wpa_s,
3764 WPA_IF_P2P_GO) < 0) {
3765 wpa_printf(MSG_ERROR, "P2P: Failed to "
3766 "allocate a new interface for the "
3770 bssid = wpa_s->pending_interface_addr;
3772 bssid = wpa_s->own_addr;
3774 role = P2P_INVITE_ROLE_CLIENT;
3775 peer_addr = ssid->bssid;
3777 wpa_s->pending_invite_ssid_id = ssid->id;
3779 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3780 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3781 ssid->ssid, ssid->ssid_len,
3784 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3787 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3788 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3792 /* Invite to join an active group */
3793 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3794 const u8 *peer_addr, const u8 *go_dev_addr)
3796 struct wpa_global *global = wpa_s->global;
3797 enum p2p_invite_role role;
3799 struct wpa_ssid *ssid;
3802 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3803 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3806 if (wpa_s == NULL) {
3807 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3811 ssid = wpa_s->current_ssid;
3813 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3818 persistent = ssid->p2p_persistent_group &&
3819 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
3820 ssid->ssid, ssid->ssid_len);
3822 if (ssid->mode == WPAS_MODE_P2P_GO) {
3823 role = P2P_INVITE_ROLE_ACTIVE_GO;
3824 bssid = wpa_s->own_addr;
3825 if (go_dev_addr == NULL)
3826 go_dev_addr = wpa_s->global->p2p_dev_addr;
3828 role = P2P_INVITE_ROLE_CLIENT;
3829 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3830 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3831 "invite to current group");
3834 bssid = wpa_s->bssid;
3835 if (go_dev_addr == NULL &&
3836 !is_zero_ether_addr(wpa_s->go_dev_addr))
3837 go_dev_addr = wpa_s->go_dev_addr;
3839 wpa_s->parent->pending_invite_ssid_id = -1;
3841 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3842 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3843 ssid->ssid, ssid->ssid_len,
3844 go_dev_addr, persistent);
3846 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3849 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3850 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3851 go_dev_addr, persistent);
3855 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3857 struct wpa_ssid *ssid = wpa_s->current_ssid;
3858 const char *ssid_txt;
3859 u8 go_dev_addr[ETH_ALEN];
3860 int network_id = -1;
3864 if (!wpa_s->show_group_started || !ssid)
3867 wpa_s->show_group_started = 0;
3869 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3870 os_memset(go_dev_addr, 0, ETH_ALEN);
3871 if (ssid->bssid_set)
3872 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3873 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3875 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3877 if (wpa_s->global->p2p_group_formation == wpa_s)
3878 wpa_s->global->p2p_group_formation = NULL;
3880 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
3881 (int) wpa_s->assoc_freq;
3882 if (ssid->passphrase == NULL && ssid->psk_set) {
3884 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3885 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3886 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3888 wpa_s->ifname, ssid_txt, freq, psk,
3889 MAC2STR(go_dev_addr),
3890 persistent ? " [PERSISTENT]" : "");
3892 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3893 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3894 "go_dev_addr=" MACSTR "%s",
3895 wpa_s->ifname, ssid_txt, freq,
3896 ssid->passphrase ? ssid->passphrase : "",
3897 MAC2STR(go_dev_addr),
3898 persistent ? " [PERSISTENT]" : "");
3902 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3905 network_id = ssid->id;
3906 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
3910 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3911 u32 interval1, u32 duration2, u32 interval2)
3913 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3915 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3918 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3919 wpa_s->current_ssid == NULL ||
3920 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3923 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3924 wpa_s->own_addr, wpa_s->assoc_freq,
3925 duration1, interval1, duration2, interval2);
3929 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3930 unsigned int interval)
3932 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3935 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3938 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3942 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
3944 return wpa_s->current_ssid != NULL &&
3945 wpa_s->current_ssid->p2p_group &&
3946 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
3950 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3952 struct wpa_supplicant *wpa_s = eloop_ctx;
3954 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3955 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3960 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3962 wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3963 wpas_p2p_group_delete(wpa_s);
3967 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3969 unsigned int timeout;
3971 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
3972 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
3974 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3977 timeout = wpa_s->conf->p2p_group_idle;
3978 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3979 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
3980 timeout = P2P_MAX_CLIENT_IDLE;
3985 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3987 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
3992 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3993 u16 reason_code, const u8 *ie, size_t ie_len)
3995 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3997 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4000 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
4004 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4005 u16 reason_code, const u8 *ie, size_t ie_len)
4007 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4009 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4012 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
4016 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4018 struct p2p_data *p2p = wpa_s->global->p2p;
4023 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4026 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4027 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4029 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4030 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4033 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4034 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4036 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4037 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4039 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4040 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4041 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4042 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4043 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4046 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4047 p2p_set_sec_dev_types(p2p,
4048 (void *) wpa_s->conf->sec_device_type,
4049 wpa_s->conf->num_sec_device_types);
4051 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4053 p2p_remove_wps_vendor_extensions(p2p);
4054 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4055 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4057 p2p_add_wps_vendor_extension(
4058 p2p, wpa_s->conf->wps_vendor_ext[i]);
4062 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4063 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4065 country[0] = wpa_s->conf->country[0];
4066 country[1] = wpa_s->conf->country[1];
4068 p2p_set_country(p2p, country);
4071 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4072 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4073 wpa_s->conf->p2p_ssid_postfix ?
4074 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4078 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4079 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
4081 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4082 u8 reg_class, channel;
4085 if (wpa_s->conf->p2p_listen_reg_class &&
4086 wpa_s->conf->p2p_listen_channel) {
4087 reg_class = wpa_s->conf->p2p_listen_reg_class;
4088 channel = wpa_s->conf->p2p_listen_channel;
4092 * Pick one of the social channels randomly as the
4095 os_get_random((u8 *) &r, sizeof(r));
4096 channel = 1 + (r % 3) * 5;
4098 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4100 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4103 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4104 u8 op_reg_class, op_channel, cfg_op_channel;
4107 if (wpa_s->conf->p2p_oper_reg_class &&
4108 wpa_s->conf->p2p_oper_channel) {
4109 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4110 op_channel = wpa_s->conf->p2p_oper_channel;
4115 * Use random operation channel from (1, 6, 11)
4116 *if no other preference is indicated.
4118 os_get_random((u8 *) &r, sizeof(r));
4119 op_channel = 1 + (r % 3) * 5;
4122 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4125 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4131 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4134 if (!wpa_s->ap_iface)
4136 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4141 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4143 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4145 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4148 wpa_s->global->cross_connection = enabled;
4149 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4152 struct wpa_supplicant *iface;
4154 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4156 if (iface->cross_connect_enabled == 0)
4159 iface->cross_connect_enabled = 0;
4160 iface->cross_connect_in_use = 0;
4161 wpa_msg(iface->parent, MSG_INFO,
4162 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4163 iface->ifname, iface->cross_connect_uplink);
4171 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4173 struct wpa_supplicant *iface;
4175 if (!uplink->global->cross_connection)
4178 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4179 if (!iface->cross_connect_enabled)
4181 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4184 if (iface->ap_iface == NULL)
4186 if (iface->cross_connect_in_use)
4189 iface->cross_connect_in_use = 1;
4190 wpa_msg(iface->parent, MSG_INFO,
4191 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4192 iface->ifname, iface->cross_connect_uplink);
4197 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4199 struct wpa_supplicant *iface;
4201 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4202 if (!iface->cross_connect_enabled)
4204 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4207 if (!iface->cross_connect_in_use)
4210 wpa_msg(iface->parent, MSG_INFO,
4211 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4212 iface->ifname, iface->cross_connect_uplink);
4213 iface->cross_connect_in_use = 0;
4218 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4220 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4221 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4222 wpa_s->cross_connect_disallowed)
4223 wpas_p2p_disable_cross_connect(wpa_s);
4225 wpas_p2p_enable_cross_connect(wpa_s);
4226 if (!wpa_s->ap_iface &&
4227 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4228 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4232 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4234 wpas_p2p_disable_cross_connect(wpa_s);
4235 if (!wpa_s->ap_iface &&
4236 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
4238 wpas_p2p_set_group_idle_timeout(wpa_s);
4242 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4244 struct wpa_supplicant *iface;
4246 if (!wpa_s->global->cross_connection)
4249 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4252 if (iface->drv_flags &
4253 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4255 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4258 wpa_s->cross_connect_enabled = 1;
4259 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4260 sizeof(wpa_s->cross_connect_uplink));
4261 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4262 "%s to %s whenever uplink is available",
4263 wpa_s->ifname, wpa_s->cross_connect_uplink);
4265 if (iface->ap_iface || iface->current_ssid == NULL ||
4266 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4267 iface->cross_connect_disallowed ||
4268 iface->wpa_state != WPA_COMPLETED)
4271 wpa_s->cross_connect_in_use = 1;
4272 wpa_msg(wpa_s->parent, MSG_INFO,
4273 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4274 wpa_s->ifname, wpa_s->cross_connect_uplink);
4280 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4282 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4283 !wpa_s->p2p_in_provisioning)
4284 return 0; /* not P2P client operation */
4286 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4288 if (wpa_s != wpa_s->parent)
4289 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4291 if (wpa_s->global->p2p)
4292 p2p_group_formation_failed(wpa_s->global->p2p);
4294 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4295 wpa_s->parent, NULL);
4297 wpas_group_formation_completed(wpa_s, 0);
4302 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4304 struct p2p_channels chan;
4306 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4309 os_memset(&chan, 0, sizeof(chan));
4310 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4311 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4316 p2p_update_channel_list(wpa_s->global->p2p, &chan);
4320 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4322 struct wpa_global *global = wpa_s->global;
4326 if (global->p2p == NULL)
4329 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4331 if (wpa_s->pending_interface_name[0] &&
4332 !is_zero_ether_addr(wpa_s->pending_interface_addr))
4335 peer = p2p_get_go_neg_peer(global->p2p);
4337 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4338 MACSTR, MAC2STR(peer));
4339 p2p_unauthorize(global->p2p, peer);
4342 wpas_p2p_stop_find(wpa_s);
4344 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4345 if (wpa_s == global->p2p_group_formation &&
4346 (wpa_s->p2p_in_provisioning ||
4347 wpa_s->parent->pending_interface_type ==
4348 WPA_IF_P2P_CLIENT)) {
4349 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4350 "formation found - cancelling",
4353 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4354 wpa_s->parent, NULL);
4355 wpas_p2p_group_delete(wpa_s);
4361 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4369 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4371 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4374 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4375 "being available anymore");
4376 wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4377 wpas_p2p_group_delete(wpa_s);
4381 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4382 int freq_24, int freq_5, int freq_overall)
4384 struct p2p_data *p2p = wpa_s->global->p2p;
4385 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4387 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4391 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4394 struct p2p_data *p2p = wpa_s->global->p2p;
4396 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4399 if (hwaddr_aton(addr, peer))
4402 return p2p_unauthorize(p2p, peer);
4407 * wpas_p2p_disconnect - Disconnect from a P2P Group
4408 * @wpa_s: Pointer to wpa_supplicant data
4409 * Returns: 0 on success, -1 on failure
4411 * This can be used to disconnect from a group in which the local end is a P2P
4412 * Client or to end a P2P Group in case the local end is the Group Owner. If a
4413 * virtual network interface was created for this group, that interface will be
4414 * removed. Otherwise, only the configured P2P group network will be removed
4415 * from the interface.
4417 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4423 wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4424 wpas_p2p_group_delete(wpa_s);
4430 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
4432 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4435 return p2p_in_progress(wpa_s->global->p2p);
4439 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
4440 struct wpa_ssid *ssid)
4443 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
4444 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4445 wpa_s->parent, NULL) > 0) {
4446 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
4447 "P2P group network getting removed");
4448 wpas_p2p_group_formation_timeout(wpa_s->parent, NULL);
4453 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
4454 const u8 *addr, const u8 *ssid,
4460 for (s = wpa_s->conf->ssid; s; s = s->next) {
4461 if (s->disabled != 2)
4464 (ssid_len != s->ssid_len ||
4465 os_memcmp(ssid, s->ssid, ssid_len) != 0))
4467 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
4468 return s; /* peer is GO in the persistent group */
4469 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
4471 for (i = 0; i < s->num_p2p_clients; i++) {
4472 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
4473 addr, ETH_ALEN) == 0)
4474 return s; /* peer is P2P client in persistent
4483 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
4488 wpas_p2p_add_persistent_group_client(wpa_s, addr);