3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_common.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/wpa_ctrl.h"
16 #include "wps/wps_i.h"
18 #include "ap/hostapd.h"
19 #include "ap/ap_config.h"
20 #include "ap/p2p_hostapd.h"
21 #include "eapol_supp/eapol_supp_sm.h"
22 #include "rsn_supp/wpa.h"
23 #include "wpa_supplicant_i.h"
26 #include "config_ssid.h"
31 #include "offchannel.h"
32 #include "wps_supplicant.h"
33 #include "p2p_supplicant.h"
37 * How many times to try to scan to find the GO before giving up on join
40 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
42 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
44 #ifndef P2P_MAX_CLIENT_IDLE
46 * How many seconds to try to reconnect to the GO when connection in P2P client
49 #define P2P_MAX_CLIENT_IDLE 10
50 #endif /* P2P_MAX_CLIENT_IDLE */
52 #ifndef P2P_MAX_INITIAL_CONN_WAIT
54 * How many seconds to wait for initial 4-way handshake to get completed after
55 * WPS provisioning step.
57 #define P2P_MAX_INITIAL_CONN_WAIT 10
58 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
60 #ifndef P2P_CONCURRENT_SEARCH_DELAY
61 #define P2P_CONCURRENT_SEARCH_DELAY 500
62 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
64 enum p2p_group_removal_reason {
65 P2P_GROUP_REMOVAL_UNKNOWN,
66 P2P_GROUP_REMOVAL_SILENT,
67 P2P_GROUP_REMOVAL_FORMATION_FAILED,
68 P2P_GROUP_REMOVAL_REQUESTED,
69 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
70 P2P_GROUP_REMOVAL_UNAVAILABLE,
71 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
75 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
76 static struct wpa_supplicant *
77 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
79 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
80 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
81 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
82 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
83 const u8 *dev_addr, enum p2p_wps_method wps_method,
85 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
87 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
88 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
89 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
90 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
91 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
95 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
96 struct wpa_scan_results *scan_res)
100 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
103 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
104 (int) scan_res->num);
106 for (i = 0; i < scan_res->num; i++) {
107 struct wpa_scan_res *bss = scan_res->res[i];
108 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
109 bss->freq, bss->level,
110 (const u8 *) (bss + 1),
115 p2p_scan_res_handled(wpa_s->global->p2p);
119 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
120 unsigned int num_req_dev_types,
121 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
123 struct wpa_supplicant *wpa_s = ctx;
124 struct wpa_supplicant *ifs;
125 struct wpa_driver_scan_params params;
127 struct wpabuf *wps_ie, *ies;
128 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
131 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
134 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
135 if (ifs->sta_scan_pending &&
136 wpas_p2p_in_progress(wpa_s) == 2) {
137 wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
138 "pending station mode scan to be "
139 "completed on interface %s", ifs->ifname);
140 wpa_s->global->p2p_cb_on_scan_complete = 1;
141 wpa_supplicant_req_scan(ifs, 0, 0);
146 os_memset(¶ms, 0, sizeof(params));
148 /* P2P Wildcard SSID */
149 params.num_ssids = 1;
150 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
151 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
153 wpa_s->wps->dev.p2p = 1;
154 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
155 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
156 num_req_dev_types, req_dev_types);
160 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
161 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
166 wpabuf_put_buf(ies, wps_ie);
169 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
171 params.p2p_probe = 1;
172 params.extra_ies = wpabuf_head(ies);
173 params.extra_ies_len = wpabuf_len(ies);
176 case P2P_SCAN_SOCIAL:
177 params.freqs = social_channels;
181 case P2P_SCAN_SOCIAL_PLUS_ONE:
182 social_channels[3] = freq;
183 params.freqs = social_channels;
187 ret = wpa_drv_scan(wpa_s, ¶ms);
192 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
194 ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
195 wpa_s->global->p2p_cb_on_scan_complete = 1;
201 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
207 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
209 switch (p2p_group_interface) {
210 case P2P_GROUP_INTERFACE_PENDING:
211 return WPA_IF_P2P_GROUP;
212 case P2P_GROUP_INTERFACE_GO:
213 return WPA_IF_P2P_GO;
214 case P2P_GROUP_INTERFACE_CLIENT:
215 return WPA_IF_P2P_CLIENT;
218 return WPA_IF_P2P_GROUP;
222 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
224 size_t ssid_len, int *go)
228 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
229 for (s = wpa_s->conf->ssid; s; s = s->next) {
230 if (s->disabled != 0 || !s->p2p_group ||
231 s->ssid_len != ssid_len ||
232 os_memcmp(ssid, s->ssid, ssid_len) != 0)
234 if (s->mode == WPAS_MODE_P2P_GO &&
235 s != wpa_s->current_ssid)
238 *go = s->mode == WPAS_MODE_P2P_GO;
247 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
248 enum p2p_group_removal_reason removal_reason)
250 struct wpa_ssid *ssid;
254 ssid = wpa_s->current_ssid;
257 * The current SSID was not known, but there may still be a
258 * pending P2P group interface waiting for provisioning.
260 ssid = wpa_s->conf->ssid;
262 if (ssid->p2p_group &&
263 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
264 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
269 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
271 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
276 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
278 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
279 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
280 wpa_s->reassociate = 0;
281 wpa_s->disconnected = 1;
282 wpa_supplicant_deauthenticate(wpa_s,
283 WLAN_REASON_DEAUTH_LEAVING);
287 if (wpa_s->cross_connect_in_use) {
288 wpa_s->cross_connect_in_use = 0;
289 wpa_msg(wpa_s->parent, MSG_INFO,
290 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
291 wpa_s->ifname, wpa_s->cross_connect_uplink);
293 switch (removal_reason) {
294 case P2P_GROUP_REMOVAL_REQUESTED:
295 reason = " reason=REQUESTED";
297 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
298 reason = " reason=FORMATION_FAILED";
300 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
301 reason = " reason=IDLE";
303 case P2P_GROUP_REMOVAL_UNAVAILABLE:
304 reason = " reason=UNAVAILABLE";
306 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
307 reason = " reason=GO_ENDING_SESSION";
313 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
314 wpa_msg(wpa_s->parent, MSG_INFO,
315 P2P_EVENT_GROUP_REMOVED "%s %s%s",
316 wpa_s->ifname, gtype, reason);
319 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
320 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
322 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
323 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
325 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
326 struct wpa_global *global;
328 enum wpa_driver_if_type type;
329 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
331 global = wpa_s->global;
332 ifname = os_strdup(wpa_s->ifname);
333 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
334 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
335 wpa_s = global->ifaces;
337 wpa_drv_if_remove(wpa_s, type, ifname);
342 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
343 if (ssid && (ssid->p2p_group ||
344 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
345 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
347 if (ssid == wpa_s->current_ssid) {
348 wpa_sm_set_config(wpa_s->wpa, NULL);
349 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
350 wpa_s->current_ssid = NULL;
353 * Networks objects created during any P2P activities are not
354 * exposed out as they might/will confuse certain non-P2P aware
355 * applications since these network objects won't behave like
358 * Likewise, we don't send out network removed signals for such
361 wpa_config_remove_network(wpa_s->conf, id);
362 wpa_supplicant_clear_status(wpa_s);
363 wpa_supplicant_cancel_sched_scan(wpa_s);
365 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
369 wpa_supplicant_ap_deinit(wpa_s);
371 wpa_drv_deinit_p2p_cli(wpa_s);
377 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
379 const u8 *ssid, size_t ssid_len)
387 if (wpa_s->go_params)
388 bssid = wpa_s->go_params->peer_interface_addr;
390 bssid = wpa_s->bssid;
392 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
394 u8 iface_addr[ETH_ALEN];
395 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
397 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
400 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
401 "group is persistent - BSS " MACSTR " not found",
406 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
408 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
409 "group is persistent - BSS " MACSTR
410 " did not include P2P IE", MAC2STR(bssid));
411 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
412 (u8 *) (bss + 1), bss->ie_len);
413 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
414 ((u8 *) bss + 1) + bss->ie_len,
419 group_capab = p2p_get_group_capab(p2p);
420 addr = p2p_get_go_dev_addr(p2p);
421 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
422 "group_capab=0x%x", group_capab);
424 os_memcpy(go_dev_addr, addr, ETH_ALEN);
425 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
428 os_memset(go_dev_addr, 0, ETH_ALEN);
431 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
432 "go_dev_addr=" MACSTR,
433 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
435 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
439 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
440 struct wpa_ssid *ssid,
441 const u8 *go_dev_addr)
446 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
447 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
448 for (s = wpa_s->conf->ssid; s; s = s->next) {
449 if (s->disabled == 2 &&
450 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
451 s->ssid_len == ssid->ssid_len &&
452 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
457 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
459 if (ssid->passphrase && !s->passphrase)
461 else if (ssid->passphrase && s->passphrase &&
462 os_strcmp(ssid->passphrase, s->passphrase) != 0)
465 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
468 s = wpa_config_add_network(wpa_s->conf);
473 * Instead of network_added we emit persistent_group_added
474 * notification. Also to keep the defense checks in
475 * persistent_group obj registration method, we set the
476 * relevant flags in s to designate it as a persistent group.
479 s->p2p_persistent_group = 1;
480 wpas_notify_persistent_group_added(wpa_s, s);
481 wpa_config_set_network_defaults(s);
485 s->p2p_persistent_group = 1;
488 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
489 s->mode = ssid->mode;
490 s->auth_alg = WPA_AUTH_ALG_OPEN;
491 s->key_mgmt = WPA_KEY_MGMT_PSK;
492 s->proto = WPA_PROTO_RSN;
493 s->pairwise_cipher = WPA_CIPHER_CCMP;
495 if (ssid->passphrase) {
496 os_free(s->passphrase);
497 s->passphrase = os_strdup(ssid->passphrase);
501 os_memcpy(s->psk, ssid->psk, 32);
503 if (s->passphrase && !s->psk_set)
504 wpa_config_update_psk(s);
505 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
507 s->ssid = os_malloc(ssid->ssid_len);
510 s->ssid_len = ssid->ssid_len;
511 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
514 #ifndef CONFIG_NO_CONFIG_WRITE
515 if (changed && wpa_s->conf->update_config &&
516 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
517 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
519 #endif /* CONFIG_NO_CONFIG_WRITE */
525 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
528 struct wpa_ssid *ssid, *s;
533 ssid = wpa_s->current_ssid;
534 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
535 !ssid->p2p_persistent_group)
538 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
539 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
542 if (s->ssid_len == ssid->ssid_len &&
543 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
550 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
551 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
555 if (i == s->num_p2p_clients - 1)
556 return; /* already the most recent entry */
558 /* move the entry to mark it most recent */
559 os_memmove(s->p2p_client_list + i * ETH_ALEN,
560 s->p2p_client_list + (i + 1) * ETH_ALEN,
561 (s->num_p2p_clients - i - 1) * ETH_ALEN);
562 os_memcpy(s->p2p_client_list +
563 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
568 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
569 n = os_realloc_array(s->p2p_client_list,
570 s->num_p2p_clients + 1, ETH_ALEN);
573 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
574 s->p2p_client_list = n;
575 s->num_p2p_clients++;
577 /* Not enough room for an additional entry - drop the oldest
579 os_memmove(s->p2p_client_list,
580 s->p2p_client_list + ETH_ALEN,
581 (s->num_p2p_clients - 1) * ETH_ALEN);
582 os_memcpy(s->p2p_client_list +
583 (s->num_p2p_clients - 1) * ETH_ALEN,
587 #ifndef CONFIG_NO_CONFIG_WRITE
588 if (wpa_s->parent->conf->update_config &&
589 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
590 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
591 #endif /* CONFIG_NO_CONFIG_WRITE */
595 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
598 struct wpa_ssid *ssid;
599 const char *ssid_txt;
602 u8 go_dev_addr[ETH_ALEN];
606 * This callback is likely called for the main interface. Update wpa_s
607 * to use the group interface if a new interface was created for the
610 if (wpa_s->global->p2p_group_formation)
611 wpa_s = wpa_s->global->p2p_group_formation;
612 wpa_s->global->p2p_group_formation = NULL;
613 wpa_s->p2p_in_provisioning = 0;
616 wpa_msg(wpa_s->parent, MSG_INFO,
617 P2P_EVENT_GROUP_FORMATION_FAILURE);
618 wpas_p2p_group_delete(wpa_s,
619 P2P_GROUP_REMOVAL_FORMATION_FAILED);
623 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
625 ssid = wpa_s->current_ssid;
626 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
627 ssid->mode = WPAS_MODE_P2P_GO;
628 p2p_group_notif_formation_done(wpa_s->p2p_group);
629 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
634 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
635 client = ssid->mode == WPAS_MODE_INFRA;
636 if (ssid->mode == WPAS_MODE_P2P_GO) {
637 persistent = ssid->p2p_persistent_group;
638 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
641 persistent = wpas_p2p_persistent_group(wpa_s,
647 client = wpa_s->p2p_group_interface ==
648 P2P_GROUP_INTERFACE_CLIENT;
649 os_memset(go_dev_addr, 0, ETH_ALEN);
652 wpa_s->show_group_started = 0;
655 * Indicate event only after successfully completed 4-way
656 * handshake, i.e., when the interface is ready for data
659 wpa_s->show_group_started = 1;
660 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
662 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
663 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
664 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
666 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
667 MAC2STR(go_dev_addr),
668 persistent ? " [PERSISTENT]" : "");
669 wpas_p2p_cross_connect_setup(wpa_s);
670 wpas_p2p_set_group_idle_timeout(wpa_s);
672 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
673 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
674 "go_dev_addr=" MACSTR "%s",
675 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
676 ssid && ssid->passphrase ? ssid->passphrase : "",
677 MAC2STR(go_dev_addr),
678 persistent ? " [PERSISTENT]" : "");
679 wpas_p2p_cross_connect_setup(wpa_s);
680 wpas_p2p_set_group_idle_timeout(wpa_s);
684 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
686 if (network_id < 0 && ssid)
687 network_id = ssid->id;
689 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
693 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
695 const u8 *dst, const u8 *src,
697 const u8 *data, size_t data_len,
698 enum offchannel_send_action_result
701 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
703 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
705 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
709 case OFFCHANNEL_SEND_ACTION_SUCCESS:
710 res = P2P_SEND_ACTION_SUCCESS;
712 case OFFCHANNEL_SEND_ACTION_NO_ACK:
713 res = P2P_SEND_ACTION_NO_ACK;
715 case OFFCHANNEL_SEND_ACTION_FAILED:
716 res = P2P_SEND_ACTION_FAILED;
720 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
722 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
723 wpa_s->pending_pd_before_join &&
724 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
725 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
726 wpa_s->pending_pd_before_join = 0;
727 if (wpa_s->p2p_fallback_to_go_neg) {
728 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
729 "during p2p_connect-auto");
730 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
734 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
735 "join-existing-group operation (no ACK for PD "
737 wpas_p2p_join_start(wpa_s);
742 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
743 const u8 *src, const u8 *bssid, const u8 *buf,
744 size_t len, unsigned int wait_time)
746 struct wpa_supplicant *wpa_s = ctx;
747 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
749 wpas_p2p_send_action_tx_status, 1);
753 static void wpas_send_action_done(void *ctx)
755 struct wpa_supplicant *wpa_s = ctx;
756 offchannel_send_action_done(wpa_s);
760 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
761 struct p2p_go_neg_results *params)
763 if (wpa_s->go_params == NULL) {
764 wpa_s->go_params = os_malloc(sizeof(*params));
765 if (wpa_s->go_params == NULL)
768 os_memcpy(wpa_s->go_params, params, sizeof(*params));
773 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
774 struct p2p_go_neg_results *res)
776 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
777 MAC2STR(res->peer_interface_addr));
778 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
779 res->ssid, res->ssid_len);
780 wpa_supplicant_ap_deinit(wpa_s);
781 wpas_copy_go_neg_results(wpa_s, res);
782 if (res->wps_method == WPS_PBC)
783 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
785 u16 dev_pw_id = DEV_PW_DEFAULT;
786 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
787 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
788 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
789 wpa_s->p2p_pin, 1, dev_pw_id);
794 static void p2p_go_configured(void *ctx, void *data)
796 struct wpa_supplicant *wpa_s = ctx;
797 struct p2p_go_neg_results *params = data;
798 struct wpa_ssid *ssid;
801 ssid = wpa_s->current_ssid;
802 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
803 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
804 if (wpa_s->global->p2p_group_formation == wpa_s)
805 wpa_s->global->p2p_group_formation = NULL;
806 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
807 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
808 "go_dev_addr=" MACSTR "%s",
810 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
812 params->passphrase ? params->passphrase : "",
813 MAC2STR(wpa_s->global->p2p_dev_addr),
814 params->persistent_group ? " [PERSISTENT]" : "");
816 if (params->persistent_group)
817 network_id = wpas_p2p_store_persistent_group(
819 wpa_s->global->p2p_dev_addr);
821 network_id = ssid->id;
822 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
823 wpas_p2p_cross_connect_setup(wpa_s);
824 wpas_p2p_set_group_idle_timeout(wpa_s);
828 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
829 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
830 params->peer_interface_addr)) {
831 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
835 if (params->wps_method == WPS_PBC)
836 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
837 params->peer_device_addr);
838 else if (wpa_s->p2p_pin[0])
839 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
840 wpa_s->p2p_pin, NULL, 0);
841 os_free(wpa_s->go_params);
842 wpa_s->go_params = NULL;
846 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
847 struct p2p_go_neg_results *params,
850 struct wpa_ssid *ssid;
852 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
855 ssid = wpa_config_add_network(wpa_s->conf);
859 wpa_s->show_group_started = 0;
861 wpa_config_set_network_defaults(ssid);
864 ssid->p2p_persistent_group = params->persistent_group;
865 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
867 ssid->frequency = params->freq;
868 ssid->ht40 = params->ht40;
869 ssid->ssid = os_zalloc(params->ssid_len + 1);
871 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
872 ssid->ssid_len = params->ssid_len;
874 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
875 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
876 ssid->proto = WPA_PROTO_RSN;
877 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
878 ssid->passphrase = os_strdup(params->passphrase);
879 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
881 wpa_s->ap_configured_cb = p2p_go_configured;
882 wpa_s->ap_configured_cb_ctx = wpa_s;
883 wpa_s->ap_configured_cb_data = wpa_s->go_params;
884 wpa_s->connect_without_scan = ssid;
885 wpa_s->reassociate = 1;
886 wpa_s->disconnected = 0;
887 wpa_supplicant_req_scan(wpa_s, 0, 0);
891 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
892 const struct wpa_supplicant *src)
894 struct wpa_config *d;
895 const struct wpa_config *s;
900 #define C(n) if (s->n) d->n = os_strdup(s->n)
909 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
910 os_memcpy(d->sec_device_type, s->sec_device_type,
911 sizeof(d->sec_device_type));
912 d->num_sec_device_types = s->num_sec_device_types;
914 d->p2p_group_idle = s->p2p_group_idle;
915 d->p2p_intra_bss = s->p2p_intra_bss;
916 d->persistent_reconnect = s->persistent_reconnect;
917 d->max_num_sta = s->max_num_sta;
918 d->pbc_in_m1 = s->pbc_in_m1;
922 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
923 enum wpa_driver_if_type type)
925 char ifname[120], force_ifname[120];
927 if (wpa_s->pending_interface_name[0]) {
928 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
929 "- skip creation of a new one");
930 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
931 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
932 "unknown?! ifname='%s'",
933 wpa_s->pending_interface_name);
939 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
940 wpa_s->p2p_group_idx);
941 if (os_strlen(ifname) >= IFNAMSIZ &&
942 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
943 /* Try to avoid going over the IFNAMSIZ length limit */
944 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
945 wpa_s->p2p_group_idx);
947 force_ifname[0] = '\0';
949 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
951 wpa_s->p2p_group_idx++;
953 wpa_s->pending_interface_type = type;
954 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
955 wpa_s->pending_interface_addr, NULL) < 0) {
956 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
961 if (force_ifname[0]) {
962 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
964 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
965 sizeof(wpa_s->pending_interface_name));
967 os_strlcpy(wpa_s->pending_interface_name, ifname,
968 sizeof(wpa_s->pending_interface_name));
969 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
970 MACSTR, wpa_s->pending_interface_name,
971 MAC2STR(wpa_s->pending_interface_addr));
977 static void wpas_p2p_remove_pending_group_interface(
978 struct wpa_supplicant *wpa_s)
980 if (!wpa_s->pending_interface_name[0] ||
981 is_zero_ether_addr(wpa_s->pending_interface_addr))
982 return; /* No pending virtual interface */
984 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
985 wpa_s->pending_interface_name);
986 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
987 wpa_s->pending_interface_name);
988 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
989 wpa_s->pending_interface_name[0] = '\0';
993 static struct wpa_supplicant *
994 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
996 struct wpa_interface iface;
997 struct wpa_supplicant *group_wpa_s;
999 if (!wpa_s->pending_interface_name[0]) {
1000 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1001 if (!wpas_p2p_create_iface(wpa_s))
1004 * Something has forced us to remove the pending interface; try
1005 * to create a new one and hope for the best that we will get
1006 * the same local address.
1008 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1009 WPA_IF_P2P_CLIENT) < 0)
1013 os_memset(&iface, 0, sizeof(iface));
1014 iface.ifname = wpa_s->pending_interface_name;
1015 iface.driver = wpa_s->driver->name;
1016 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1017 iface.driver_param = wpa_s->conf->driver_param;
1018 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1019 if (group_wpa_s == NULL) {
1020 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1021 "wpa_supplicant interface");
1024 wpa_s->pending_interface_name[0] = '\0';
1025 group_wpa_s->parent = wpa_s;
1026 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1027 P2P_GROUP_INTERFACE_CLIENT;
1028 wpa_s->global->p2p_group_formation = group_wpa_s;
1030 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1036 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1039 struct wpa_supplicant *wpa_s = eloop_ctx;
1040 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1041 if (wpa_s->global->p2p)
1042 p2p_group_formation_failed(wpa_s->global->p2p);
1043 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1044 wpa_drv_p2p_group_formation_failed(wpa_s);
1045 wpas_group_formation_completed(wpa_s, 0);
1049 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1051 struct wpa_supplicant *wpa_s = ctx;
1053 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1054 wpa_drv_cancel_remain_on_channel(wpa_s);
1055 wpa_s->off_channel_freq = 0;
1056 wpa_s->roc_waiting_drv_freq = 0;
1060 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1062 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1063 wpas_p2p_remove_pending_group_interface(wpa_s);
1067 if (wpa_s->p2p_go_ht40)
1070 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1071 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1073 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1074 struct wpa_ssid *ssid;
1075 ssid = wpa_config_get_network(wpa_s->conf,
1076 wpa_s->p2p_persistent_id);
1077 if (ssid && ssid->disabled == 2 &&
1078 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1079 size_t len = os_strlen(ssid->passphrase);
1080 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1081 "on requested persistent group");
1082 os_memcpy(res->passphrase, ssid->passphrase, len);
1083 res->passphrase[len] = '\0';
1087 if (wpa_s->create_p2p_iface) {
1088 struct wpa_supplicant *group_wpa_s =
1089 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1090 if (group_wpa_s == NULL) {
1091 wpas_p2p_remove_pending_group_interface(wpa_s);
1094 if (group_wpa_s != wpa_s) {
1095 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1096 sizeof(group_wpa_s->p2p_pin));
1097 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1099 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1100 wpa_s->pending_interface_name[0] = '\0';
1101 group_wpa_s->p2p_in_provisioning = 1;
1104 wpas_start_wps_go(group_wpa_s, res, 1);
1106 wpas_start_wps_enrollee(group_wpa_s, res);
1108 wpa_s->p2p_in_provisioning = 1;
1109 wpa_s->global->p2p_group_formation = wpa_s;
1112 wpas_start_wps_go(wpa_s, res, 1);
1114 wpas_start_wps_enrollee(ctx, res);
1117 wpa_s->p2p_long_listen = 0;
1118 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1120 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1121 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1122 (res->peer_config_timeout % 100) * 10000,
1123 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1127 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1129 struct wpa_supplicant *wpa_s = ctx;
1130 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1131 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1133 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1137 void wpas_dev_found(void *ctx, const u8 *addr,
1138 const struct p2p_peer_info *info,
1141 #ifndef CONFIG_NO_STDOUT_DEBUG
1142 struct wpa_supplicant *wpa_s = ctx;
1143 char devtype[WPS_DEV_TYPE_BUFSIZE];
1145 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1146 " p2p_dev_addr=" MACSTR
1147 " pri_dev_type=%s name='%s' config_methods=0x%x "
1148 "dev_capab=0x%x group_capab=0x%x",
1149 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1150 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1152 info->device_name, info->config_methods,
1153 info->dev_capab, info->group_capab);
1154 #endif /* CONFIG_NO_STDOUT_DEBUG */
1156 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1160 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1162 struct wpa_supplicant *wpa_s = ctx;
1164 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1165 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1167 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1171 static int wpas_start_listen(void *ctx, unsigned int freq,
1172 unsigned int duration,
1173 const struct wpabuf *probe_resp_ie)
1175 struct wpa_supplicant *wpa_s = ctx;
1177 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1179 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1180 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1181 "report received Probe Request frames");
1185 wpa_s->pending_listen_freq = freq;
1186 wpa_s->pending_listen_duration = duration;
1188 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1189 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1190 "to remain on channel (%u MHz) for Listen "
1192 wpa_s->pending_listen_freq = 0;
1195 wpa_s->off_channel_freq = 0;
1196 wpa_s->roc_waiting_drv_freq = freq;
1202 static void wpas_stop_listen(void *ctx)
1204 struct wpa_supplicant *wpa_s = ctx;
1205 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1206 wpa_drv_cancel_remain_on_channel(wpa_s);
1207 wpa_s->off_channel_freq = 0;
1208 wpa_s->roc_waiting_drv_freq = 0;
1210 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1211 wpa_drv_probe_req_report(wpa_s, 0);
1215 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1217 struct wpa_supplicant *wpa_s = ctx;
1218 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1222 static struct p2p_srv_bonjour *
1223 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1224 const struct wpabuf *query)
1226 struct p2p_srv_bonjour *bsrv;
1229 len = wpabuf_len(query);
1230 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1231 struct p2p_srv_bonjour, list) {
1232 if (len == wpabuf_len(bsrv->query) &&
1233 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1241 static struct p2p_srv_upnp *
1242 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1243 const char *service)
1245 struct p2p_srv_upnp *usrv;
1247 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1248 struct p2p_srv_upnp, list) {
1249 if (version == usrv->version &&
1250 os_strcmp(service, usrv->service) == 0)
1257 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1262 if (wpabuf_tailroom(resp) < 5)
1265 /* Length (to be filled) */
1266 len_pos = wpabuf_put(resp, 2);
1267 wpabuf_put_u8(resp, srv_proto);
1268 wpabuf_put_u8(resp, srv_trans_id);
1270 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1271 /* Response Data: empty */
1272 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1276 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1277 struct wpabuf *resp, u8 srv_trans_id)
1279 struct p2p_srv_bonjour *bsrv;
1282 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1284 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1285 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1289 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1290 struct p2p_srv_bonjour, list) {
1291 if (wpabuf_tailroom(resp) <
1292 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1294 /* Length (to be filled) */
1295 len_pos = wpabuf_put(resp, 2);
1296 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1297 wpabuf_put_u8(resp, srv_trans_id);
1299 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1300 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1301 wpabuf_head(bsrv->resp),
1302 wpabuf_len(bsrv->resp));
1304 wpabuf_put_buf(resp, bsrv->query); /* Key */
1305 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1306 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1312 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1313 struct wpabuf *resp, u8 srv_trans_id,
1314 const u8 *query, size_t query_len)
1316 struct p2p_srv_bonjour *bsrv;
1320 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1322 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1323 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1324 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1329 if (query_len == 0) {
1330 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1334 if (wpabuf_tailroom(resp) < 5)
1336 /* Length (to be filled) */
1337 len_pos = wpabuf_put(resp, 2);
1338 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1339 wpabuf_put_u8(resp, srv_trans_id);
1341 wpabuf_set(&buf, query, query_len);
1342 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1344 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1348 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1349 /* Response Data: empty */
1350 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1356 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1357 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1358 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1360 if (wpabuf_tailroom(resp) >=
1361 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1363 wpabuf_put_buf(resp, bsrv->query); /* Key */
1364 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1366 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1370 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1371 struct wpabuf *resp, u8 srv_trans_id)
1373 struct p2p_srv_upnp *usrv;
1376 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1378 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1379 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1383 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1384 struct p2p_srv_upnp, list) {
1385 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1388 /* Length (to be filled) */
1389 len_pos = wpabuf_put(resp, 2);
1390 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1391 wpabuf_put_u8(resp, srv_trans_id);
1394 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1396 wpabuf_put_u8(resp, usrv->version);
1397 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1399 wpabuf_put_str(resp, usrv->service);
1400 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1406 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1407 struct wpabuf *resp, u8 srv_trans_id,
1408 const u8 *query, size_t query_len)
1410 struct p2p_srv_upnp *usrv;
1416 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1419 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1420 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1421 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1426 if (query_len == 0) {
1427 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1431 if (wpabuf_tailroom(resp) < 5)
1434 /* Length (to be filled) */
1435 len_pos = wpabuf_put(resp, 2);
1436 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1437 wpabuf_put_u8(resp, srv_trans_id);
1440 str = os_malloc(query_len);
1443 os_memcpy(str, query + 1, query_len - 1);
1444 str[query_len - 1] = '\0';
1446 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1447 struct p2p_srv_upnp, list) {
1448 if (version != usrv->version)
1451 if (os_strcmp(str, "ssdp:all") != 0 &&
1452 os_strstr(usrv->service, str) == NULL)
1455 if (wpabuf_tailroom(resp) < 2)
1459 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1461 wpabuf_put_u8(resp, version);
1463 wpabuf_put_u8(resp, ',');
1467 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1469 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1471 wpabuf_put_str(resp, usrv->service);
1476 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1479 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1480 /* Response Data: empty */
1483 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1487 #ifdef CONFIG_WIFI_DISPLAY
1488 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1489 struct wpabuf *resp, u8 srv_trans_id,
1490 const u8 *query, size_t query_len)
1496 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1498 if (!wpa_s->global->wifi_display) {
1499 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1500 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1505 if (query_len < 1) {
1506 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1511 if (wpabuf_tailroom(resp) < 5)
1516 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1518 /* TODO: role specific handling */
1520 /* Length (to be filled) */
1521 len_pos = wpabuf_put(resp, 2);
1522 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1523 wpabuf_put_u8(resp, srv_trans_id);
1524 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1526 while (pos < query + query_len) {
1527 if (*pos < MAX_WFD_SUBELEMS &&
1528 wpa_s->global->wfd_subelem[*pos] &&
1529 wpabuf_tailroom(resp) >=
1530 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1531 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1532 "subelement %u", *pos);
1533 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1538 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1540 #endif /* CONFIG_WIFI_DISPLAY */
1543 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1544 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1546 struct wpa_supplicant *wpa_s = ctx;
1547 const u8 *pos = tlvs;
1548 const u8 *end = tlvs + tlvs_len;
1551 struct wpabuf *resp;
1552 u8 srv_proto, srv_trans_id;
1556 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1558 buf_len = 2 * tlvs_len + 1;
1559 buf = os_malloc(buf_len);
1561 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1562 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1564 freq, MAC2STR(sa), dialog_token, update_indic,
1569 if (wpa_s->p2p_sd_over_ctrl_iface) {
1570 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1571 update_indic, tlvs, tlvs_len);
1572 return; /* to be processed by an external program */
1575 resp = wpabuf_alloc(10000);
1579 while (pos + 1 < end) {
1580 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1581 slen = WPA_GET_LE16(pos);
1583 if (pos + slen > end || slen < 2) {
1584 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1589 tlv_end = pos + slen;
1592 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1594 srv_trans_id = *pos++;
1595 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1598 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1599 pos, tlv_end - pos);
1602 if (wpa_s->force_long_sd) {
1603 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1605 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1606 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1610 switch (srv_proto) {
1611 case P2P_SERV_ALL_SERVICES:
1612 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1613 "for all services");
1614 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1615 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1616 wpa_printf(MSG_DEBUG, "P2P: No service "
1617 "discovery protocols available");
1618 wpas_sd_add_proto_not_avail(
1619 resp, P2P_SERV_ALL_SERVICES,
1623 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1624 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1626 case P2P_SERV_BONJOUR:
1627 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1628 pos, tlv_end - pos);
1631 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1632 pos, tlv_end - pos);
1634 #ifdef CONFIG_WIFI_DISPLAY
1635 case P2P_SERV_WIFI_DISPLAY:
1636 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1637 pos, tlv_end - pos);
1639 #endif /* CONFIG_WIFI_DISPLAY */
1641 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1642 "protocol %u", srv_proto);
1643 wpas_sd_add_proto_not_avail(resp, srv_proto,
1652 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1653 update_indic, tlvs, tlvs_len);
1655 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1661 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1662 const u8 *tlvs, size_t tlvs_len)
1664 struct wpa_supplicant *wpa_s = ctx;
1665 const u8 *pos = tlvs;
1666 const u8 *end = tlvs + tlvs_len;
1672 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1674 if (tlvs_len > 1500) {
1675 /* TODO: better way for handling this */
1676 wpa_msg_ctrl(wpa_s, MSG_INFO,
1677 P2P_EVENT_SERV_DISC_RESP MACSTR
1678 " %u <long response: %u bytes>",
1679 MAC2STR(sa), update_indic,
1680 (unsigned int) tlvs_len);
1682 buf_len = 2 * tlvs_len + 1;
1683 buf = os_malloc(buf_len);
1685 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1686 wpa_msg_ctrl(wpa_s, MSG_INFO,
1687 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1688 MAC2STR(sa), update_indic, buf);
1694 u8 srv_proto, srv_trans_id, status;
1696 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1697 slen = WPA_GET_LE16(pos);
1699 if (pos + slen > end || slen < 3) {
1700 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1704 tlv_end = pos + slen;
1707 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1709 srv_trans_id = *pos++;
1710 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1713 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1716 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1717 pos, tlv_end - pos);
1722 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1726 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1727 const struct wpabuf *tlvs)
1729 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1730 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1731 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1733 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1737 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1738 u8 version, const char *query)
1740 struct wpabuf *tlvs;
1743 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1746 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1747 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1748 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1749 wpabuf_put_u8(tlvs, version);
1750 wpabuf_put_str(tlvs, query);
1751 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1757 #ifdef CONFIG_WIFI_DISPLAY
1759 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1760 const struct wpabuf *tlvs)
1762 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1764 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1766 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1770 #define MAX_WFD_SD_SUBELEMS 20
1772 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1773 const char *subelems)
1780 len = wpabuf_put(tlvs, 2);
1781 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1782 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1784 wpabuf_put_u8(tlvs, role);
1789 if (val >= 0 && val < 256) {
1790 wpabuf_put_u8(tlvs, val);
1792 if (count == MAX_WFD_SD_SUBELEMS)
1795 pos = os_strchr(pos + 1, ',');
1801 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
1805 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
1806 const u8 *dst, const char *role)
1808 struct wpabuf *tlvs;
1810 const char *subelems;
1813 subelems = os_strchr(role, ' ');
1814 if (subelems == NULL)
1818 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
1822 if (os_strstr(role, "[source]"))
1823 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
1824 if (os_strstr(role, "[pri-sink]"))
1825 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
1826 if (os_strstr(role, "[sec-sink]"))
1827 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
1828 if (os_strstr(role, "[source+sink]"))
1829 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
1831 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
1836 #endif /* CONFIG_WIFI_DISPLAY */
1839 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
1841 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1842 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
1843 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1845 return p2p_sd_cancel_request(wpa_s->global->p2p,
1846 (void *) (uintptr_t) req);
1850 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1851 const u8 *dst, u8 dialog_token,
1852 const struct wpabuf *resp_tlvs)
1854 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1855 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1859 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1861 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1866 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1868 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1869 wpa_drv_p2p_service_update(wpa_s);
1872 if (wpa_s->global->p2p)
1873 p2p_sd_service_update(wpa_s->global->p2p);
1877 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1879 dl_list_del(&bsrv->list);
1880 wpabuf_free(bsrv->query);
1881 wpabuf_free(bsrv->resp);
1886 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1888 dl_list_del(&usrv->list);
1889 os_free(usrv->service);
1894 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1896 struct p2p_srv_bonjour *bsrv, *bn;
1897 struct p2p_srv_upnp *usrv, *un;
1899 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1900 struct p2p_srv_bonjour, list)
1901 wpas_p2p_srv_bonjour_free(bsrv);
1903 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1904 struct p2p_srv_upnp, list)
1905 wpas_p2p_srv_upnp_free(usrv);
1907 wpas_p2p_sd_service_update(wpa_s);
1911 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1912 struct wpabuf *query, struct wpabuf *resp)
1914 struct p2p_srv_bonjour *bsrv;
1916 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1919 wpabuf_free(bsrv->resp);
1924 bsrv = os_zalloc(sizeof(*bsrv));
1927 bsrv->query = query;
1929 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1931 wpas_p2p_sd_service_update(wpa_s);
1936 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1937 const struct wpabuf *query)
1939 struct p2p_srv_bonjour *bsrv;
1941 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1944 wpas_p2p_srv_bonjour_free(bsrv);
1945 wpas_p2p_sd_service_update(wpa_s);
1950 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1951 const char *service)
1953 struct p2p_srv_upnp *usrv;
1955 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1956 return 0; /* Already listed */
1957 usrv = os_zalloc(sizeof(*usrv));
1960 usrv->version = version;
1961 usrv->service = os_strdup(service);
1962 if (usrv->service == NULL) {
1966 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1968 wpas_p2p_sd_service_update(wpa_s);
1973 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1974 const char *service)
1976 struct p2p_srv_upnp *usrv;
1978 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1981 wpas_p2p_srv_upnp_free(usrv);
1982 wpas_p2p_sd_service_update(wpa_s);
1987 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1988 const u8 *peer, const char *params,
1989 unsigned int generated_pin)
1991 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1992 MAC2STR(peer), generated_pin, params);
1996 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1997 const u8 *peer, const char *params)
1999 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2000 MAC2STR(peer), params);
2004 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2005 const u8 *dev_addr, const u8 *pri_dev_type,
2006 const char *dev_name, u16 supp_config_methods,
2007 u8 dev_capab, u8 group_capab, const u8 *group_id,
2008 size_t group_id_len)
2010 struct wpa_supplicant *wpa_s = ctx;
2011 char devtype[WPS_DEV_TYPE_BUFSIZE];
2013 u8 empty_dev_type[8];
2014 unsigned int generated_pin = 0;
2015 struct wpa_supplicant *group = NULL;
2018 for (group = wpa_s->global->ifaces; group; group = group->next)
2020 struct wpa_ssid *s = group->current_ssid;
2022 s->mode == WPAS_MODE_P2P_GO &&
2023 group_id_len - ETH_ALEN == s->ssid_len &&
2024 os_memcmp(group_id + ETH_ALEN, s->ssid,
2030 if (pri_dev_type == NULL) {
2031 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2032 pri_dev_type = empty_dev_type;
2034 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2035 " pri_dev_type=%s name='%s' config_methods=0x%x "
2036 "dev_capab=0x%x group_capab=0x%x%s%s",
2038 wps_dev_type_bin2str(pri_dev_type, devtype,
2040 dev_name, supp_config_methods, dev_capab, group_capab,
2041 group ? " group=" : "",
2042 group ? group->ifname : "");
2043 params[sizeof(params) - 1] = '\0';
2045 if (config_methods & WPS_CONFIG_DISPLAY) {
2046 generated_pin = wps_generate_pin();
2047 wpas_prov_disc_local_display(wpa_s, peer, params,
2049 } else if (config_methods & WPS_CONFIG_KEYPAD)
2050 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2051 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2052 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2053 "%s", MAC2STR(peer), params);
2055 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2056 P2P_PROV_DISC_SUCCESS,
2057 config_methods, generated_pin);
2061 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2063 struct wpa_supplicant *wpa_s = ctx;
2064 unsigned int generated_pin = 0;
2067 if (wpa_s->pending_pd_before_join &&
2068 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2069 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2070 wpa_s->pending_pd_before_join = 0;
2071 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2072 "join-existing-group operation");
2073 wpas_p2p_join_start(wpa_s);
2077 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2078 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2079 os_snprintf(params, sizeof(params), " peer_go=%d",
2080 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2084 if (config_methods & WPS_CONFIG_DISPLAY)
2085 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2086 else if (config_methods & WPS_CONFIG_KEYPAD) {
2087 generated_pin = wps_generate_pin();
2088 wpas_prov_disc_local_display(wpa_s, peer, params,
2090 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2091 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2092 "%s", MAC2STR(peer), params);
2094 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2095 P2P_PROV_DISC_SUCCESS,
2096 config_methods, generated_pin);
2100 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2101 enum p2p_prov_disc_status status)
2103 struct wpa_supplicant *wpa_s = ctx;
2105 if (wpa_s->p2p_fallback_to_go_neg) {
2106 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2107 "failed - fall back to GO Negotiation");
2108 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2112 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2113 " p2p_dev_addr=" MACSTR " status=%d",
2114 MAC2STR(peer), status);
2116 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2121 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2122 const u8 *go_dev_addr, const u8 *ssid,
2123 size_t ssid_len, int *go, u8 *group_bssid,
2124 int *force_freq, int persistent_group)
2126 struct wpa_supplicant *wpa_s = ctx;
2128 u8 cur_bssid[ETH_ALEN];
2130 struct wpa_supplicant *grp;
2132 if (!persistent_group) {
2133 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2134 " to join an active group", MAC2STR(sa));
2135 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2136 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2138 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2139 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2140 "authorized invitation");
2144 * Do not accept the invitation automatically; notify user and
2147 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2150 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2152 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2153 "running persistent group");
2155 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2159 if (!wpa_s->conf->persistent_reconnect)
2160 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2162 for (s = wpa_s->conf->ssid; s; s = s->next) {
2163 if (s->disabled == 2 &&
2164 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2165 s->ssid_len == ssid_len &&
2166 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2171 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2172 " requested reinvocation of an unknown group",
2174 return P2P_SC_FAIL_UNKNOWN_GROUP;
2177 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2179 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2180 wpa_printf(MSG_DEBUG, "P2P: The only available "
2181 "interface is already in use - reject "
2183 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2185 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2186 } else if (s->mode == WPAS_MODE_P2P_GO) {
2188 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2190 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2191 "interface address for the group");
2192 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2194 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2199 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2200 wpa_s->assoc_freq) {
2201 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2202 "the channel we are already using");
2203 *force_freq = wpa_s->assoc_freq;
2206 res = wpa_drv_shared_freq(wpa_s);
2208 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2209 "with the channel we are already using on a "
2210 "shared interface");
2214 return P2P_SC_SUCCESS;
2218 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2219 const u8 *ssid, size_t ssid_len,
2220 const u8 *go_dev_addr, u8 status,
2223 struct wpa_supplicant *wpa_s = ctx;
2226 for (s = wpa_s->conf->ssid; s; s = s->next) {
2227 if (s->disabled == 2 &&
2228 s->ssid_len == ssid_len &&
2229 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2233 if (status == P2P_SC_SUCCESS) {
2234 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2235 " was accepted; op_freq=%d MHz",
2236 MAC2STR(sa), op_freq);
2238 wpas_p2p_group_add_persistent(
2239 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0, 0);
2241 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2242 wpa_s->p2p_wps_method, 0);
2247 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2248 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2249 " was rejected (status %u)", MAC2STR(sa), status);
2255 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2256 "sa=" MACSTR " go_dev_addr=" MACSTR
2257 " bssid=" MACSTR " unknown-network",
2258 MAC2STR(sa), MAC2STR(go_dev_addr),
2261 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2262 "sa=" MACSTR " go_dev_addr=" MACSTR
2264 MAC2STR(sa), MAC2STR(go_dev_addr));
2269 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2270 " persistent=%d", MAC2STR(sa), s->id);
2274 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2276 struct wpa_supplicant *wpa_s = ctx;
2277 struct wpa_ssid *ssid;
2280 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2281 "status=%d " MACSTR,
2282 status, MAC2STR(bssid));
2284 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2285 "status=%d ", status);
2287 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2289 if (wpa_s->pending_invite_ssid_id == -1)
2290 return; /* Invitation to active group */
2292 if (status != P2P_SC_SUCCESS) {
2293 wpas_p2p_remove_pending_group_interface(wpa_s);
2297 ssid = wpa_config_get_network(wpa_s->conf,
2298 wpa_s->pending_invite_ssid_id);
2300 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2301 "data matching with invitation");
2305 wpas_p2p_group_add_persistent(wpa_s, ssid,
2306 ssid->mode == WPAS_MODE_P2P_GO,
2307 wpa_s->p2p_persistent_go_freq,
2308 wpa_s->p2p_go_ht40);
2312 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2317 if (global->p2p_disallow_freq == NULL)
2320 for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2321 if (freq >= global->p2p_disallow_freq[i].min &&
2322 freq <= global->p2p_disallow_freq[i].max)
2330 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2332 reg->channel[reg->channels] = chan;
2337 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2338 struct p2p_channels *chan)
2342 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2345 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2346 chan->reg_class[cla].reg_class = 81;
2347 chan->reg_class[cla].channels = 0;
2348 for (i = 0; i < 11; i++) {
2349 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2350 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2352 if (chan->reg_class[cla].channels)
2355 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2358 /* Operating class 115 - 5 GHz, channels 36-48 */
2359 chan->reg_class[cla].reg_class = 115;
2360 chan->reg_class[cla].channels = 0;
2361 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2362 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2363 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2364 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2365 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2366 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2367 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2368 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2369 if (chan->reg_class[cla].channels)
2372 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2375 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2376 chan->reg_class[cla].reg_class = 124;
2377 chan->reg_class[cla].channels = 0;
2378 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2379 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2380 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2381 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2382 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2383 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2384 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2385 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2386 if (chan->reg_class[cla].channels)
2389 chan->reg_classes = cla;
2394 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2396 enum hostapd_hw_mode mode)
2400 for (i = 0; i < num_modes; i++) {
2401 if (modes[i].mode == mode)
2409 static int has_channel(struct wpa_global *global,
2410 struct hostapd_hw_modes *mode, u8 chan, int *flags)
2415 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2417 if (wpas_p2p_disallowed_freq(global, freq))
2420 for (i = 0; i < mode->num_channels; i++) {
2421 if (mode->channels[i].chan == chan) {
2423 *flags = mode->channels[i].flag;
2424 return !(mode->channels[i].flag &
2425 (HOSTAPD_CHAN_DISABLED |
2426 HOSTAPD_CHAN_PASSIVE_SCAN |
2427 HOSTAPD_CHAN_NO_IBSS |
2428 HOSTAPD_CHAN_RADAR));
2436 struct p2p_oper_class_map {
2437 enum hostapd_hw_mode mode;
2442 enum { BW20, BW40PLUS, BW40MINUS } bw;
2445 static struct p2p_oper_class_map op_class[] = {
2446 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2447 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2448 #if 0 /* Do not enable HT40 on 2 GHz for now */
2449 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2450 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2452 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2453 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2454 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2455 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2456 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2457 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2458 { -1, 0, 0, 0, 0, BW20 }
2462 static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2463 struct hostapd_hw_modes *mode,
2468 if (!has_channel(wpa_s->global, mode, channel, &flag))
2470 if (bw == BW40MINUS &&
2471 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2472 !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2474 if (bw == BW40PLUS &&
2475 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2476 !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2482 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2483 struct p2p_channels *chan)
2485 struct hostapd_hw_modes *mode;
2488 if (wpa_s->hw.modes == NULL) {
2489 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2490 "of all supported channels; assume dualband "
2492 return wpas_p2p_default_channels(wpa_s, chan);
2497 for (op = 0; op_class[op].op_class; op++) {
2498 struct p2p_oper_class_map *o = &op_class[op];
2500 struct p2p_reg_class *reg = NULL;
2502 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2505 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2506 if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
2509 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2510 "class %u", o->op_class);
2511 reg = &chan->reg_class[cla];
2513 reg->reg_class = o->op_class;
2515 reg->channel[reg->channels] = ch;
2519 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2520 reg->channel, reg->channels);
2524 chan->reg_classes = cla;
2530 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2531 struct hostapd_hw_modes *mode, u8 channel)
2535 for (op = 0; op_class[op].op_class; op++) {
2536 struct p2p_oper_class_map *o = &op_class[op];
2539 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2540 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2541 o->bw == BW20 || ch != channel)
2543 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2547 return (o->bw == BW40MINUS) ? -1 : 1;
2556 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2559 struct wpa_supplicant *wpa_s = ctx;
2561 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2562 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2568 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2572 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2574 struct wpa_supplicant *wpa_s = ctx;
2576 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2577 struct wpa_ssid *ssid = wpa_s->current_ssid;
2580 if (ssid->mode != WPAS_MODE_INFRA)
2582 if (wpa_s->wpa_state != WPA_COMPLETED &&
2583 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2585 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2594 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2595 * @global: Pointer to global data from wpa_supplicant_init()
2596 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2597 * Returns: 0 on success, -1 on failure
2599 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2601 struct p2p_config p2p;
2605 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2611 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2612 struct p2p_params params;
2614 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2615 os_memset(¶ms, 0, sizeof(params));
2616 params.dev_name = wpa_s->conf->device_name;
2617 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2619 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2620 os_memcpy(params.sec_dev_type,
2621 wpa_s->conf->sec_device_type,
2622 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2624 if (wpa_drv_p2p_set_params(wpa_s, ¶ms) < 0)
2630 os_memset(&p2p, 0, sizeof(p2p));
2631 p2p.msg_ctx = wpa_s;
2633 p2p.p2p_scan = wpas_p2p_scan;
2634 p2p.send_action = wpas_send_action;
2635 p2p.send_action_done = wpas_send_action_done;
2636 p2p.go_neg_completed = wpas_go_neg_completed;
2637 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2638 p2p.dev_found = wpas_dev_found;
2639 p2p.dev_lost = wpas_dev_lost;
2640 p2p.start_listen = wpas_start_listen;
2641 p2p.stop_listen = wpas_stop_listen;
2642 p2p.send_probe_resp = wpas_send_probe_resp;
2643 p2p.sd_request = wpas_sd_request;
2644 p2p.sd_response = wpas_sd_response;
2645 p2p.prov_disc_req = wpas_prov_disc_req;
2646 p2p.prov_disc_resp = wpas_prov_disc_resp;
2647 p2p.prov_disc_fail = wpas_prov_disc_fail;
2648 p2p.invitation_process = wpas_invitation_process;
2649 p2p.invitation_received = wpas_invitation_received;
2650 p2p.invitation_result = wpas_invitation_result;
2651 p2p.get_noa = wpas_get_noa;
2652 p2p.go_connected = wpas_go_connected;
2654 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2655 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
2656 p2p.dev_name = wpa_s->conf->device_name;
2657 p2p.manufacturer = wpa_s->conf->manufacturer;
2658 p2p.model_name = wpa_s->conf->model_name;
2659 p2p.model_number = wpa_s->conf->model_number;
2660 p2p.serial_number = wpa_s->conf->serial_number;
2662 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2663 p2p.config_methods = wpa_s->wps->config_methods;
2666 if (wpa_s->conf->p2p_listen_reg_class &&
2667 wpa_s->conf->p2p_listen_channel) {
2668 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2669 p2p.channel = wpa_s->conf->p2p_listen_channel;
2673 * Pick one of the social channels randomly as the listen
2676 os_get_random((u8 *) &r, sizeof(r));
2677 p2p.channel = 1 + (r % 3) * 5;
2679 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2681 if (wpa_s->conf->p2p_oper_reg_class &&
2682 wpa_s->conf->p2p_oper_channel) {
2683 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2684 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2685 p2p.cfg_op_channel = 1;
2686 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2687 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2690 p2p.op_reg_class = 81;
2692 * Use random operation channel from (1, 6, 11) if no other
2693 * preference is indicated.
2695 os_get_random((u8 *) &r, sizeof(r));
2696 p2p.op_channel = 1 + (r % 3) * 5;
2697 p2p.cfg_op_channel = 0;
2698 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2699 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2701 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2702 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2703 p2p.country[2] = 0x04;
2705 os_memcpy(p2p.country, "XX\x04", 3);
2707 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2708 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2713 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2716 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2717 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2718 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2720 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2721 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2723 p2p.max_peers = 100;
2725 if (wpa_s->conf->p2p_ssid_postfix) {
2726 p2p.ssid_postfix_len =
2727 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2728 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2729 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2730 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2731 p2p.ssid_postfix_len);
2734 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2736 global->p2p = p2p_init(&p2p);
2737 if (global->p2p == NULL)
2739 global->p2p_init_wpa_s = wpa_s;
2741 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2742 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2744 p2p_add_wps_vendor_extension(
2745 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2753 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2754 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2756 * This function deinitialize per-interface P2P data.
2758 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2760 if (wpa_s->driver && wpa_s->drv_priv)
2761 wpa_drv_probe_req_report(wpa_s, 0);
2763 if (wpa_s->go_params) {
2764 /* Clear any stored provisioning info */
2765 p2p_clear_provisioning_info(
2767 wpa_s->go_params->peer_device_addr);
2770 os_free(wpa_s->go_params);
2771 wpa_s->go_params = NULL;
2772 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2773 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2774 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
2775 wpa_s->p2p_long_listen = 0;
2776 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2777 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2778 wpas_p2p_remove_pending_group_interface(wpa_s);
2780 /* TODO: remove group interface from the driver if this wpa_s instance
2781 * is on top of a P2P group interface */
2786 * wpas_p2p_deinit_global - Deinitialize global P2P module
2787 * @global: Pointer to global data from wpa_supplicant_init()
2789 * This function deinitializes the global (per device) P2P module.
2791 void wpas_p2p_deinit_global(struct wpa_global *global)
2793 struct wpa_supplicant *wpa_s, *tmp;
2795 wpa_s = global->ifaces;
2797 wpas_p2p_service_flush(wpa_s);
2799 if (global->p2p == NULL)
2802 /* Remove remaining P2P group interfaces */
2803 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2804 wpa_s = wpa_s->next;
2806 tmp = global->ifaces;
2809 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2814 /* Disconnect from the P2P group and deinit the interface */
2815 wpas_p2p_disconnect(tmp);
2819 * Deinit GO data on any possibly remaining interface (if main
2820 * interface is used as GO).
2822 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2823 if (wpa_s->ap_iface)
2824 wpas_p2p_group_deinit(wpa_s);
2827 p2p_deinit(global->p2p);
2829 global->p2p_init_wpa_s = NULL;
2833 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2835 if (wpa_s->drv_flags &
2836 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2837 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2838 return 1; /* P2P group requires a new interface in every case
2840 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2841 return 0; /* driver does not support concurrent operations */
2842 if (wpa_s->global->ifaces->next)
2843 return 1; /* more that one interface already in use */
2844 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2845 return 1; /* this interface is already in use */
2850 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2851 const u8 *peer_addr,
2852 enum p2p_wps_method wps_method,
2853 int go_intent, const u8 *own_interface_addr,
2854 unsigned int force_freq, int persistent_group,
2855 struct wpa_ssid *ssid)
2857 if (persistent_group && wpa_s->conf->persistent_reconnect)
2858 persistent_group = 2;
2860 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2861 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2862 go_intent, own_interface_addr,
2863 force_freq, persistent_group);
2867 * Increase GO config timeout if HT40 is used since it takes some time
2868 * to scan channels for coex purposes before the BSS can be started.
2870 p2p_set_config_timeout(wpa_s->global->p2p,
2871 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
2873 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2874 go_intent, own_interface_addr, force_freq,
2875 persistent_group, ssid ? ssid->ssid : NULL,
2876 ssid ? ssid->ssid_len : 0,
2877 wpa_s->p2p_pd_before_go_neg);
2881 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2882 const u8 *peer_addr,
2883 enum p2p_wps_method wps_method,
2884 int go_intent, const u8 *own_interface_addr,
2885 unsigned int force_freq, int persistent_group,
2886 struct wpa_ssid *ssid)
2888 if (persistent_group && wpa_s->conf->persistent_reconnect)
2889 persistent_group = 2;
2891 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2894 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2895 go_intent, own_interface_addr, force_freq,
2896 persistent_group, ssid ? ssid->ssid : NULL,
2897 ssid ? ssid->ssid_len : 0);
2901 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2903 wpa_s->p2p_join_scan_count++;
2904 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2905 wpa_s->p2p_join_scan_count);
2906 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2907 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2908 " for join operationg - stop join attempt",
2909 MAC2STR(wpa_s->pending_join_iface_addr));
2910 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2911 if (wpa_s->p2p_auto_pd) {
2912 wpa_s->p2p_auto_pd = 0;
2913 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2914 " p2p_dev_addr=" MACSTR " status=N/A",
2915 MAC2STR(wpa_s->pending_join_dev_addr));
2918 wpa_msg(wpa_s->parent, MSG_INFO,
2919 P2P_EVENT_GROUP_FORMATION_FAILURE);
2924 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
2926 struct wpa_supplicant *wpa_s = eloop_ctx;
2927 if (!wpa_s->pending_pd_before_join)
2930 * Provision Discovery Response may have been lost - try to connect
2931 * anyway since we do not need any information from this PD.
2933 wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
2934 "try to connect anyway");
2935 wpas_p2p_join_start(wpa_s);
2939 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
2941 struct wpa_supplicant *iface;
2945 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
2948 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
2949 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
2951 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
2953 if (iface->current_ssid->mode == WPAS_MODE_AP ||
2954 iface->current_ssid->mode == WPAS_MODE_P2P_GO)
2955 shared_freq = iface->current_ssid->frequency;
2956 else if (wpa_drv_get_bssid(iface, bssid) == 0)
2957 shared_freq = iface->assoc_freq;
2961 if (shared_freq && freq != shared_freq) {
2962 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
2963 "connected on %d MHz - new connection on "
2964 "%d MHz", iface->ifname, shared_freq, freq);
2969 shared_freq = wpa_drv_shared_freq(wpa_s);
2970 if (shared_freq > 0 && shared_freq != freq) {
2971 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
2972 "virtual interface connected on %d MHz - new "
2973 "connection on %d MHz", shared_freq, freq);
2981 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
2982 const u8 *peer_dev_addr)
2984 struct wpa_bss *bss;
2987 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
2990 if (bss->last_update_idx < wpa_s->bss_update_idx) {
2991 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
2996 updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
2997 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
2998 "%ld.%06ld (%supdated in last scan)",
2999 bss->last_update.sec, bss->last_update.usec,
3000 updated ? "": "not ");
3006 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3007 struct wpa_scan_results *scan_res)
3009 struct wpa_bss *bss;
3011 u8 iface_addr[ETH_ALEN];
3013 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3015 if (wpa_s->global->p2p_disabled)
3018 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3019 scan_res ? (int) scan_res->num : -1,
3020 wpa_s->p2p_auto_join ? "auto_" : "");
3023 wpas_p2p_scan_res_handler(wpa_s, scan_res);
3025 if (wpa_s->p2p_auto_pd) {
3026 int join = wpas_p2p_peer_go(wpa_s,
3027 wpa_s->pending_join_dev_addr);
3029 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3030 wpa_s->auto_pd_scan_retry++;
3031 bss = wpa_bss_get_bssid(wpa_s,
3032 wpa_s->pending_join_dev_addr);
3035 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3036 "the peer " MACSTR " at %d MHz",
3037 wpa_s->auto_pd_scan_retry,
3039 pending_join_dev_addr),
3041 wpas_p2p_join_scan_req(wpa_s, freq);
3049 wpa_s->p2p_auto_pd = 0;
3050 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3051 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3052 MAC2STR(wpa_s->pending_join_dev_addr), join);
3053 if (p2p_prov_disc_req(wpa_s->global->p2p,
3054 wpa_s->pending_join_dev_addr,
3055 wpa_s->pending_pd_config_methods, join,
3057 wpa_s->p2p_auto_pd = 0;
3058 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3059 " p2p_dev_addr=" MACSTR " status=N/A",
3060 MAC2STR(wpa_s->pending_join_dev_addr));
3065 if (wpa_s->p2p_auto_join) {
3066 int join = wpas_p2p_peer_go(wpa_s,
3067 wpa_s->pending_join_dev_addr);
3069 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3070 "running a GO -> use GO Negotiation");
3071 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3072 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3073 wpa_s->p2p_persistent_group, 0, 0, 0,
3074 wpa_s->p2p_go_intent,
3075 wpa_s->p2p_connect_freq,
3076 wpa_s->p2p_persistent_id,
3077 wpa_s->p2p_pd_before_go_neg,
3078 wpa_s->p2p_go_ht40);
3082 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3083 "try to join the group", join ? "" :
3086 wpa_s->p2p_fallback_to_go_neg = 1;
3089 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3090 wpa_s->pending_join_iface_addr);
3092 p2p_get_interface_addr(wpa_s->global->p2p,
3093 wpa_s->pending_join_dev_addr,
3095 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3097 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3098 "address for join from " MACSTR " to " MACSTR
3099 " based on newly discovered P2P peer entry",
3100 MAC2STR(wpa_s->pending_join_iface_addr),
3101 MAC2STR(iface_addr));
3102 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3105 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3106 wpa_s->pending_join_iface_addr);
3109 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3110 "from P2P peer table: %d MHz", freq);
3112 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3115 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3116 "from BSS table: %d MHz", freq);
3121 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3122 wpa_msg(wpa_s->parent, MSG_INFO,
3123 P2P_EVENT_GROUP_FORMATION_FAILURE
3124 "reason=FREQ_CONFLICT");
3128 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3129 "prior to joining an existing group (GO " MACSTR
3131 MAC2STR(wpa_s->pending_join_dev_addr), freq);
3132 wpa_s->pending_pd_before_join = 1;
3134 switch (wpa_s->pending_join_wps_method) {
3135 case WPS_PIN_DISPLAY:
3136 method = WPS_CONFIG_KEYPAD;
3138 case WPS_PIN_KEYPAD:
3139 method = WPS_CONFIG_DISPLAY;
3142 method = WPS_CONFIG_PUSHBUTTON;
3149 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3150 wpa_s->pending_join_dev_addr) ==
3153 * We have already performed provision discovery for
3154 * joining the group. Proceed directly to join
3155 * operation without duplicated provision discovery. */
3156 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
3157 "with " MACSTR " already done - proceed to "
3159 MAC2STR(wpa_s->pending_join_dev_addr));
3160 wpa_s->pending_pd_before_join = 0;
3164 if (p2p_prov_disc_req(wpa_s->global->p2p,
3165 wpa_s->pending_join_dev_addr, method, 1,
3167 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3168 "Discovery Request before joining an "
3170 wpa_s->pending_pd_before_join = 0;
3175 * Actual join operation will be started from the Action frame
3176 * TX status callback (if no ACK is received) or when the
3177 * Provision Discovery Response is received. Use a short
3178 * timeout as a backup mechanism should the Provision Discovery
3179 * Response be lost for any reason.
3181 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
3183 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
3188 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3189 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3190 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3191 wpas_p2p_check_join_scan_limit(wpa_s);
3195 /* Start join operation immediately */
3196 wpas_p2p_join_start(wpa_s);
3200 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
3203 struct wpa_driver_scan_params params;
3204 struct wpabuf *wps_ie, *ies;
3206 int freqs[2] = { 0, 0 };
3208 os_memset(¶ms, 0, sizeof(params));
3210 /* P2P Wildcard SSID */
3211 params.num_ssids = 1;
3212 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3213 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3215 wpa_s->wps->dev.p2p = 1;
3216 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3217 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3219 if (wps_ie == NULL) {
3220 wpas_p2p_scan_res_join(wpa_s, NULL);
3224 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3225 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
3227 wpabuf_free(wps_ie);
3228 wpas_p2p_scan_res_join(wpa_s, NULL);
3231 wpabuf_put_buf(ies, wps_ie);
3232 wpabuf_free(wps_ie);
3234 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
3236 params.p2p_probe = 1;
3237 params.extra_ies = wpabuf_head(ies);
3238 params.extra_ies_len = wpabuf_len(ies);
3241 params.freqs = freqs;
3245 * Run a scan to update BSS table and start Provision Discovery once
3246 * the new scan results become available.
3248 ret = wpa_drv_scan(wpa_s, ¶ms);
3250 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
3255 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3257 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3258 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3259 wpas_p2p_check_join_scan_limit(wpa_s);
3264 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3266 struct wpa_supplicant *wpa_s = eloop_ctx;
3267 wpas_p2p_join_scan_req(wpa_s, 0);
3271 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
3272 const u8 *dev_addr, enum p2p_wps_method wps_method,
3275 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
3276 MACSTR " dev " MACSTR ")%s",
3277 MAC2STR(iface_addr), MAC2STR(dev_addr),
3278 auto_join ? " (auto_join)" : "");
3280 wpa_s->p2p_auto_pd = 0;
3281 wpa_s->p2p_auto_join = !!auto_join;
3282 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3283 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3284 wpa_s->pending_join_wps_method = wps_method;
3286 /* Make sure we are not running find during connection establishment */
3287 wpas_p2p_stop_find(wpa_s);
3289 wpa_s->p2p_join_scan_count = 0;
3290 wpas_p2p_join_scan(wpa_s, NULL);
3295 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3297 struct wpa_supplicant *group;
3298 struct p2p_go_neg_results res;
3299 struct wpa_bss *bss;
3301 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
3302 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3305 if (group != wpa_s) {
3306 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3307 sizeof(group->p2p_pin));
3308 group->p2p_wps_method = wpa_s->p2p_wps_method;
3311 group->p2p_in_provisioning = 1;
3312 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
3314 os_memset(&res, 0, sizeof(res));
3315 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3317 res.wps_method = wpa_s->pending_join_wps_method;
3318 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3320 res.freq = bss->freq;
3321 res.ssid_len = bss->ssid_len;
3322 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3325 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3326 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3328 wpa_drv_cancel_remain_on_channel(wpa_s);
3329 wpa_s->off_channel_freq = 0;
3330 wpa_s->roc_waiting_drv_freq = 0;
3332 wpas_start_wps_enrollee(group, &res);
3335 * Allow a longer timeout for join-a-running-group than normal 15
3336 * second group formation timeout since the GO may not have authorized
3337 * our connection yet.
3339 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3340 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3348 * wpas_p2p_connect - Request P2P Group Formation to be started
3349 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3350 * @peer_addr: Address of the peer P2P Device
3351 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3352 * @persistent_group: Whether to create a persistent group
3353 * @auto_join: Whether to select join vs. GO Negotiation automatically
3354 * @join: Whether to join an existing group (as a client) instead of starting
3355 * Group Owner negotiation; @peer_addr is BSSID in that case
3356 * @auth: Whether to only authorize the connection instead of doing that and
3357 * initiating Group Owner negotiation
3358 * @go_intent: GO Intent or -1 to use default
3359 * @freq: Frequency for the group or 0 for auto-selection
3360 * @persistent_id: Persistent group credentials to use for forcing GO
3361 * parameters or -1 to generate new values (SSID/passphrase)
3362 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3363 * interoperability workaround when initiating group formation
3364 * @ht40: Start GO with 40 MHz channel width
3365 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3366 * failure, -2 on failure due to channel not currently available,
3367 * -3 if forced channel is not supported
3369 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3370 const char *pin, enum p2p_wps_method wps_method,
3371 int persistent_group, int auto_join, int join, int auth,
3372 int go_intent, int freq, int persistent_id, int pd,
3375 int force_freq = 0, oper_freq = 0;
3378 enum wpa_driver_if_type iftype;
3380 struct wpa_ssid *ssid = NULL;
3382 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3385 if (persistent_id >= 0) {
3386 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3387 if (ssid == NULL || ssid->disabled != 2 ||
3388 ssid->mode != WPAS_MODE_P2P_GO)
3393 go_intent = wpa_s->conf->p2p_go_intent;
3396 wpa_s->p2p_long_listen = 0;
3398 wpa_s->p2p_wps_method = wps_method;
3399 wpa_s->p2p_persistent_group = !!persistent_group;
3400 wpa_s->p2p_persistent_id = persistent_id;
3401 wpa_s->p2p_go_intent = go_intent;
3402 wpa_s->p2p_connect_freq = freq;
3403 wpa_s->p2p_fallback_to_go_neg = 0;
3404 wpa_s->p2p_pd_before_go_neg = !!pd;
3405 wpa_s->p2p_go_ht40 = !!ht40;
3408 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3409 else if (wps_method == WPS_PIN_DISPLAY) {
3410 ret = wps_generate_pin();
3411 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3413 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3416 wpa_s->p2p_pin[0] = '\0';
3418 if (join || auto_join) {
3419 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
3421 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3422 "connect a running group from " MACSTR,
3423 MAC2STR(peer_addr));
3424 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3427 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
3428 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
3430 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
3431 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3435 os_get_time(&wpa_s->p2p_auto_started);
3436 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3438 wpa_s->p2p_auto_started.sec,
3439 wpa_s->p2p_auto_started.usec);
3441 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3447 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3449 oper_freq = wpa_s->assoc_freq;
3451 oper_freq = wpa_drv_shared_freq(wpa_s);
3457 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3458 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3459 "(%u MHz) is not supported for P2P uses",
3464 if (oper_freq > 0 && freq != oper_freq &&
3465 !(wpa_s->drv_flags &
3466 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3467 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3468 "on %u MHz while connected on another "
3469 "channel (%u MHz)", freq, oper_freq);
3472 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3473 "requested channel (%u MHz)", freq);
3475 } else if (oper_freq > 0 &&
3476 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3477 if (!(wpa_s->drv_flags &
3478 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3479 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3480 "while connected on non-P2P supported "
3481 "channel (%u MHz)", oper_freq);
3484 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3485 "(%u MHz) not available for P2P - try to use "
3486 "another channel", oper_freq);
3488 } else if (oper_freq > 0) {
3489 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3490 "channel we are already using (%u MHz) on another "
3491 "interface", oper_freq);
3492 force_freq = oper_freq;
3495 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3497 if (wpa_s->create_p2p_iface) {
3498 /* Prepare to add a new interface for the group */
3499 iftype = WPA_IF_P2P_GROUP;
3500 if (go_intent == 15)
3501 iftype = WPA_IF_P2P_GO;
3502 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3503 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3504 "interface for the group");
3508 if_addr = wpa_s->pending_interface_addr;
3510 if_addr = wpa_s->own_addr;
3513 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3515 force_freq, persistent_group, ssid) <
3521 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3522 go_intent, if_addr, force_freq,
3523 persistent_group, ssid) < 0) {
3524 if (wpa_s->create_p2p_iface)
3525 wpas_p2p_remove_pending_group_interface(wpa_s);
3533 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3534 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3535 * @freq: Frequency of the channel in MHz
3536 * @duration: Duration of the stay on the channel in milliseconds
3538 * This callback is called when the driver indicates that it has started the
3539 * requested remain-on-channel duration.
3541 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3542 unsigned int freq, unsigned int duration)
3544 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3546 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3547 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3548 wpa_s->pending_listen_duration);
3549 wpa_s->pending_listen_freq = 0;
3554 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3555 unsigned int timeout)
3557 /* Limit maximum Listen state time based on driver limitation. */
3558 if (timeout > wpa_s->max_remain_on_chan)
3559 timeout = wpa_s->max_remain_on_chan;
3561 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3562 return wpa_drv_p2p_listen(wpa_s, timeout);
3564 return p2p_listen(wpa_s->global->p2p, timeout);
3569 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3570 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3571 * @freq: Frequency of the channel in MHz
3573 * This callback is called when the driver indicates that a remain-on-channel
3574 * operation has been completed, i.e., the duration on the requested channel
3577 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3580 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3581 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3582 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3583 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3585 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3586 return; /* P2P module started a new operation */
3587 if (wpa_s->pending_action_tx)
3589 if (wpa_s->p2p_long_listen > 0)
3590 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3591 if (wpa_s->p2p_long_listen > 0) {
3592 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3593 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3599 * wpas_p2p_group_remove - Remove a P2P group
3600 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3601 * @ifname: Network interface name of the group interface or "*" to remove all
3603 * Returns: 0 on success, -1 on failure
3605 * This function is used to remove a P2P group. This can be used to disconnect
3606 * from a group in which the local end is a P2P Client or to end a P2P Group in
3607 * case the local end is the Group Owner. If a virtual network interface was
3608 * created for this group, that interface will be removed. Otherwise, only the
3609 * configured P2P group network will be removed from the interface.
3611 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3613 struct wpa_global *global = wpa_s->global;
3615 if (os_strcmp(ifname, "*") == 0) {
3616 struct wpa_supplicant *prev;
3617 wpa_s = global->ifaces;
3620 wpa_s = wpa_s->next;
3621 wpas_p2p_disconnect(prev);
3626 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3627 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3631 return wpas_p2p_disconnect(wpa_s);
3635 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3636 struct p2p_go_neg_results *params,
3642 os_memset(params, 0, sizeof(*params));
3643 params->role_go = 1;
3644 params->ht40 = ht40;
3646 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3647 "frequency %d MHz", freq);
3648 params->freq = freq;
3649 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3650 wpa_s->conf->p2p_oper_channel >= 1 &&
3651 wpa_s->conf->p2p_oper_channel <= 11) {
3652 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3653 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3654 "frequency %d MHz", params->freq);
3655 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3656 wpa_s->conf->p2p_oper_reg_class == 124) {
3657 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3658 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3659 "frequency %d MHz", params->freq);
3660 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3661 wpa_s->best_overall_freq > 0 &&
3662 p2p_supported_freq(wpa_s->global->p2p,
3663 wpa_s->best_overall_freq)) {
3664 params->freq = wpa_s->best_overall_freq;
3665 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3666 "channel %d MHz", params->freq);
3667 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3668 wpa_s->best_24_freq > 0 &&
3669 p2p_supported_freq(wpa_s->global->p2p,
3670 wpa_s->best_24_freq)) {
3671 params->freq = wpa_s->best_24_freq;
3672 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3673 "channel %d MHz", params->freq);
3674 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3675 wpa_s->best_5_freq > 0 &&
3676 p2p_supported_freq(wpa_s->global->p2p,
3677 wpa_s->best_5_freq)) {
3678 params->freq = wpa_s->best_5_freq;
3679 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3680 "channel %d MHz", params->freq);
3683 for (chan = 0; chan < 11; chan++) {
3684 params->freq = 2412 + chan * 5;
3685 if (!wpas_p2p_disallowed_freq(wpa_s->global,
3690 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3694 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3695 "known)", params->freq);
3698 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3699 wpa_s->assoc_freq && !freq) {
3700 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3702 params->freq = wpa_s->assoc_freq;
3705 res = wpa_drv_shared_freq(wpa_s);
3706 if (res > 0 && !freq) {
3707 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3708 "already using on a shared interface");
3710 } else if (res > 0 && freq != res &&
3711 !(wpa_s->drv_flags &
3712 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3713 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3714 "while connected on another channel (%u MHz)",
3723 static struct wpa_supplicant *
3724 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3727 struct wpa_supplicant *group_wpa_s;
3729 if (!wpas_p2p_create_iface(wpa_s))
3732 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3733 WPA_IF_P2P_CLIENT) < 0)
3735 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3736 if (group_wpa_s == NULL) {
3737 wpas_p2p_remove_pending_group_interface(wpa_s);
3746 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3747 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3748 * @persistent_group: Whether to create a persistent group
3749 * @freq: Frequency for the group or 0 to indicate no hardcoding
3750 * Returns: 0 on success, -1 on failure
3752 * This function creates a new P2P group with the local end as the Group Owner,
3753 * i.e., without using Group Owner Negotiation.
3755 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3758 struct p2p_go_neg_results params;
3761 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3764 /* Make sure we are not running find during connection establishment */
3765 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3766 wpas_p2p_stop_find(wpa_s);
3769 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3771 if (wpa_s->best_24_freq > 0 &&
3772 p2p_supported_freq(wpa_s->global->p2p,
3773 wpa_s->best_24_freq)) {
3774 freq = wpa_s->best_24_freq;
3775 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3776 "channel: %d MHz", freq);
3778 os_get_random((u8 *) &r, sizeof(r));
3779 freq = 2412 + (r % 3) * 25;
3780 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3781 "channel: %d MHz", freq);
3786 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3788 if (wpa_s->best_5_freq > 0 &&
3789 p2p_supported_freq(wpa_s->global->p2p,
3790 wpa_s->best_5_freq)) {
3791 freq = wpa_s->best_5_freq;
3792 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3793 "channel: %d MHz", freq);
3795 os_get_random((u8 *) &r, sizeof(r));
3796 freq = 5180 + (r % 4) * 20;
3797 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3798 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3799 "5 GHz channel for P2P group");
3802 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3803 "channel: %d MHz", freq);
3807 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3808 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3809 "(%u MHz) is not supported for P2P uses",
3814 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40))
3817 !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
3818 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
3819 "(%u MHz) is not supported for P2P uses",
3823 p2p_go_params(wpa_s->global->p2p, ¶ms);
3824 params.persistent_group = persistent_group;
3826 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3829 wpas_start_wps_go(wpa_s, ¶ms, 0);
3835 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3836 struct wpa_ssid *params, int addr_allocated)
3838 struct wpa_ssid *ssid;
3840 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3844 wpa_supplicant_ap_deinit(wpa_s);
3846 ssid = wpa_config_add_network(wpa_s->conf);
3849 wpa_config_set_network_defaults(ssid);
3850 ssid->temporary = 1;
3851 ssid->proto = WPA_PROTO_RSN;
3852 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3853 ssid->group_cipher = WPA_CIPHER_CCMP;
3854 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3855 ssid->ssid = os_malloc(params->ssid_len);
3856 if (ssid->ssid == NULL) {
3857 wpa_config_remove_network(wpa_s->conf, ssid->id);
3860 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3861 ssid->ssid_len = params->ssid_len;
3862 ssid->p2p_group = 1;
3863 ssid->export_keys = 1;
3864 if (params->psk_set) {
3865 os_memcpy(ssid->psk, params->psk, 32);
3868 if (params->passphrase)
3869 ssid->passphrase = os_strdup(params->passphrase);
3871 wpa_supplicant_select_network(wpa_s, ssid);
3873 wpa_s->show_group_started = 1;
3879 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3880 struct wpa_ssid *ssid, int addr_allocated,
3883 struct p2p_go_neg_results params;
3886 if (ssid->disabled != 2 || ssid->ssid == NULL)
3889 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3890 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3891 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3896 /* Make sure we are not running find during connection establishment */
3897 wpas_p2p_stop_find(wpa_s);
3899 wpa_s->p2p_fallback_to_go_neg = 0;
3901 if (ssid->mode == WPAS_MODE_INFRA)
3902 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3904 if (ssid->mode != WPAS_MODE_P2P_GO)
3907 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40))
3911 if (ssid->passphrase == NULL ||
3912 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3913 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3917 os_strlcpy(params.passphrase, ssid->passphrase,
3918 sizeof(params.passphrase));
3919 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3920 params.ssid_len = ssid->ssid_len;
3921 params.persistent_group = 1;
3923 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3927 wpas_start_wps_go(wpa_s, ¶ms, 0);
3933 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3934 struct wpabuf *proberesp_ies)
3936 struct wpa_supplicant *wpa_s = ctx;
3937 if (wpa_s->ap_iface) {
3938 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3939 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3940 wpabuf_free(beacon_ies);
3941 wpabuf_free(proberesp_ies);
3945 wpabuf_free(hapd->p2p_beacon_ie);
3946 hapd->p2p_beacon_ie = beacon_ies;
3948 wpabuf_free(hapd->p2p_probe_resp_ie);
3949 hapd->p2p_probe_resp_ie = proberesp_ies;
3951 wpabuf_free(beacon_ies);
3952 wpabuf_free(proberesp_ies);
3954 wpa_supplicant_ap_update_beacon(wpa_s);
3958 static void wpas_p2p_idle_update(void *ctx, int idle)
3960 struct wpa_supplicant *wpa_s = ctx;
3961 if (!wpa_s->ap_iface)
3963 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3965 wpas_p2p_set_group_idle_timeout(wpa_s);
3967 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3971 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3972 struct wpa_ssid *ssid)
3974 struct p2p_group *group;
3975 struct p2p_group_config *cfg;
3977 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3979 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3982 cfg = os_zalloc(sizeof(*cfg));
3986 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
3987 cfg->persistent_group = 2;
3988 else if (ssid->p2p_persistent_group)
3989 cfg->persistent_group = 1;
3990 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3991 if (wpa_s->max_stations &&
3992 wpa_s->max_stations < wpa_s->conf->max_num_sta)
3993 cfg->max_clients = wpa_s->max_stations;
3995 cfg->max_clients = wpa_s->conf->max_num_sta;
3996 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
3997 cfg->ssid_len = ssid->ssid_len;
3998 cfg->cb_ctx = wpa_s;
3999 cfg->ie_update = wpas_p2p_ie_update;
4000 cfg->idle_update = wpas_p2p_idle_update;
4002 group = p2p_group_init(wpa_s->global->p2p, cfg);
4005 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
4006 p2p_group_notif_formation_done(group);
4007 wpa_s->p2p_group = group;
4012 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4015 struct wpa_ssid *ssid = wpa_s->current_ssid;
4017 if (!wpa_s->p2p_in_provisioning) {
4018 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4019 "provisioning not in progress");
4023 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4024 u8 go_dev_addr[ETH_ALEN];
4025 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4026 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4028 /* Clear any stored provisioning info */
4029 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4032 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4034 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4036 * Use a separate timeout for initial data connection to
4037 * complete to allow the group to be removed automatically if
4038 * something goes wrong in this step before the P2P group idle
4039 * timeout mechanism is taken into use.
4041 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4042 wpas_p2p_group_formation_timeout,
4043 wpa_s->parent, NULL);
4045 if (wpa_s->global->p2p)
4046 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
4047 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4048 wpa_drv_wps_success_cb(wpa_s, peer_addr);
4049 wpas_group_formation_completed(wpa_s, 1);
4053 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4054 struct wps_event_fail *fail)
4056 if (!wpa_s->p2p_in_provisioning) {
4057 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4058 "provisioning not in progress");
4062 if (wpa_s->go_params) {
4063 p2p_clear_provisioning_info(
4065 wpa_s->go_params->peer_device_addr);
4068 wpas_notify_p2p_wps_failed(wpa_s, fail);
4072 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4073 const char *config_method,
4074 enum wpas_p2p_prov_disc_use use)
4078 wpa_s->p2p_fallback_to_go_neg = 0;
4079 wpa_s->pending_pd_use = NORMAL_PD;
4080 if (os_strncmp(config_method, "display", 7) == 0)
4081 config_methods = WPS_CONFIG_DISPLAY;
4082 else if (os_strncmp(config_method, "keypad", 6) == 0)
4083 config_methods = WPS_CONFIG_KEYPAD;
4084 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4085 os_strncmp(config_method, "pushbutton", 10) == 0)
4086 config_methods = WPS_CONFIG_PUSHBUTTON;
4088 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
4092 if (use == WPAS_P2P_PD_AUTO) {
4093 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4094 wpa_s->pending_pd_config_methods = config_methods;
4095 wpa_s->p2p_auto_pd = 1;
4096 wpa_s->p2p_auto_join = 0;
4097 wpa_s->pending_pd_before_join = 0;
4098 wpa_s->auto_pd_scan_retry = 0;
4099 wpas_p2p_stop_find(wpa_s);
4100 wpa_s->p2p_join_scan_count = 0;
4101 os_get_time(&wpa_s->p2p_auto_started);
4102 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4103 wpa_s->p2p_auto_started.sec,
4104 wpa_s->p2p_auto_started.usec);
4105 wpas_p2p_join_scan(wpa_s, NULL);
4109 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4110 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
4112 use == WPAS_P2P_PD_FOR_JOIN);
4115 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
4118 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
4119 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
4124 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4127 return p2p_scan_result_text(ies, ies_len, buf, end);
4131 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4133 if (!wpa_s->pending_action_tx)
4136 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4137 "operation request");
4138 wpabuf_free(wpa_s->pending_action_tx);
4139 wpa_s->pending_action_tx = NULL;
4143 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
4144 enum p2p_discovery_type type,
4145 unsigned int num_req_dev_types, const u8 *req_dev_types,
4146 const u8 *dev_id, unsigned int search_delay)
4148 wpas_p2p_clear_pending_action_tx(wpa_s);
4149 wpa_s->p2p_long_listen = 0;
4151 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4152 return wpa_drv_p2p_find(wpa_s, timeout, type);
4154 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4155 wpa_s->p2p_in_provisioning)
4158 wpa_supplicant_cancel_sched_scan(wpa_s);
4160 return p2p_find(wpa_s->global->p2p, timeout, type,
4161 num_req_dev_types, req_dev_types, dev_id,
4166 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4168 wpas_p2p_clear_pending_action_tx(wpa_s);
4169 wpa_s->p2p_long_listen = 0;
4170 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4171 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4172 wpa_s->global->p2p_cb_on_scan_complete = 0;
4174 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4175 wpa_drv_p2p_stop_find(wpa_s);
4179 if (wpa_s->global->p2p)
4180 p2p_stop_find(wpa_s->global->p2p);
4182 wpas_p2p_remove_pending_group_interface(wpa_s);
4186 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4188 struct wpa_supplicant *wpa_s = eloop_ctx;
4189 wpa_s->p2p_long_listen = 0;
4193 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4197 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4200 wpa_supplicant_cancel_sched_scan(wpa_s);
4201 wpas_p2p_clear_pending_action_tx(wpa_s);
4205 * This is a request for unlimited Listen state. However, at
4206 * least for now, this is mapped to a Listen state for one
4211 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4212 wpa_s->p2p_long_listen = 0;
4215 * Stop previous find/listen operation to avoid trying to request a new
4216 * remain-on-channel operation while the driver is still running the
4219 if (wpa_s->global->p2p)
4220 p2p_stop_find(wpa_s->global->p2p);
4222 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4223 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
4224 wpa_s->p2p_long_listen = timeout * 1000;
4225 eloop_register_timeout(timeout, 0,
4226 wpas_p2p_long_listen_timeout,
4234 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
4235 u8 *buf, size_t len, int p2p_group)
4237 struct wpabuf *p2p_ie;
4240 if (wpa_s->global->p2p_disabled)
4242 if (wpa_s->global->p2p == NULL)
4247 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4248 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4250 wpabuf_free(p2p_ie);
4256 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
4257 const u8 *dst, const u8 *bssid,
4258 const u8 *ie, size_t ie_len, int ssi_signal)
4260 if (wpa_s->global->p2p_disabled)
4262 if (wpa_s->global->p2p == NULL)
4265 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4267 case P2P_PREQ_NOT_P2P:
4268 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4271 case P2P_PREQ_MALFORMED:
4272 case P2P_PREQ_NOT_LISTEN:
4273 case P2P_PREQ_NOT_PROCESSED:
4274 default: /* make gcc happy */
4276 case P2P_PREQ_PROCESSED:
4282 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4283 const u8 *sa, const u8 *bssid,
4284 u8 category, const u8 *data, size_t len, int freq)
4286 if (wpa_s->global->p2p_disabled)
4288 if (wpa_s->global->p2p == NULL)
4291 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4296 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4298 if (wpa_s->global->p2p_disabled)
4300 if (wpa_s->global->p2p == NULL)
4303 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4307 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4309 p2p_group_deinit(wpa_s->p2p_group);
4310 wpa_s->p2p_group = NULL;
4312 wpa_s->ap_configured_cb = NULL;
4313 wpa_s->ap_configured_cb_ctx = NULL;
4314 wpa_s->ap_configured_cb_data = NULL;
4315 wpa_s->connect_without_scan = NULL;
4319 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4321 wpa_s->p2p_long_listen = 0;
4323 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4324 return wpa_drv_p2p_reject(wpa_s, addr);
4326 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4329 return p2p_reject(wpa_s->global->p2p, addr);
4333 /* Invite to reinvoke a persistent group */
4334 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4335 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4338 enum p2p_invite_role role;
4341 wpa_s->p2p_persistent_go_freq = freq;
4342 wpa_s->p2p_go_ht40 = !!ht40;
4343 if (ssid->mode == WPAS_MODE_P2P_GO) {
4344 role = P2P_INVITE_ROLE_GO;
4345 if (peer_addr == NULL) {
4346 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4347 "address in invitation command");
4350 if (wpas_p2p_create_iface(wpa_s)) {
4351 if (wpas_p2p_add_group_interface(wpa_s,
4352 WPA_IF_P2P_GO) < 0) {
4353 wpa_printf(MSG_ERROR, "P2P: Failed to "
4354 "allocate a new interface for the "
4358 bssid = wpa_s->pending_interface_addr;
4360 bssid = wpa_s->own_addr;
4362 role = P2P_INVITE_ROLE_CLIENT;
4363 peer_addr = ssid->bssid;
4365 wpa_s->pending_invite_ssid_id = ssid->id;
4367 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4368 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4369 ssid->ssid, ssid->ssid_len,
4372 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4375 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4376 ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
4380 /* Invite to join an active group */
4381 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4382 const u8 *peer_addr, const u8 *go_dev_addr)
4384 struct wpa_global *global = wpa_s->global;
4385 enum p2p_invite_role role;
4387 struct wpa_ssid *ssid;
4390 wpa_s->p2p_persistent_go_freq = 0;
4391 wpa_s->p2p_go_ht40 = 0;
4393 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4394 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4397 if (wpa_s == NULL) {
4398 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4402 ssid = wpa_s->current_ssid;
4404 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4409 persistent = ssid->p2p_persistent_group &&
4410 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4411 ssid->ssid, ssid->ssid_len);
4413 if (ssid->mode == WPAS_MODE_P2P_GO) {
4414 role = P2P_INVITE_ROLE_ACTIVE_GO;
4415 bssid = wpa_s->own_addr;
4416 if (go_dev_addr == NULL)
4417 go_dev_addr = wpa_s->global->p2p_dev_addr;
4419 role = P2P_INVITE_ROLE_CLIENT;
4420 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4421 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4422 "invite to current group");
4425 bssid = wpa_s->bssid;
4426 if (go_dev_addr == NULL &&
4427 !is_zero_ether_addr(wpa_s->go_dev_addr))
4428 go_dev_addr = wpa_s->go_dev_addr;
4430 wpa_s->parent->pending_invite_ssid_id = -1;
4432 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4433 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4434 ssid->ssid, ssid->ssid_len,
4435 go_dev_addr, persistent);
4437 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4440 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4441 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
4442 go_dev_addr, persistent);
4446 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4448 struct wpa_ssid *ssid = wpa_s->current_ssid;
4449 const char *ssid_txt;
4450 u8 go_dev_addr[ETH_ALEN];
4451 int network_id = -1;
4455 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4456 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4457 wpa_s->parent, NULL);
4460 if (!wpa_s->show_group_started || !ssid)
4463 wpa_s->show_group_started = 0;
4465 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4466 os_memset(go_dev_addr, 0, ETH_ALEN);
4467 if (ssid->bssid_set)
4468 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4469 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4471 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4473 if (wpa_s->global->p2p_group_formation == wpa_s)
4474 wpa_s->global->p2p_group_formation = NULL;
4476 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4477 (int) wpa_s->assoc_freq;
4478 if (ssid->passphrase == NULL && ssid->psk_set) {
4480 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4481 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4482 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4484 wpa_s->ifname, ssid_txt, freq, psk,
4485 MAC2STR(go_dev_addr),
4486 persistent ? " [PERSISTENT]" : "");
4488 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4489 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4490 "go_dev_addr=" MACSTR "%s",
4491 wpa_s->ifname, ssid_txt, freq,
4492 ssid->passphrase ? ssid->passphrase : "",
4493 MAC2STR(go_dev_addr),
4494 persistent ? " [PERSISTENT]" : "");
4498 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4501 network_id = ssid->id;
4502 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
4505 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
4506 wpa_s->global->p2p != NULL) {
4507 wpa_s->global->p2p_cb_on_scan_complete = 0;
4508 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4509 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4510 "continued after successful connection");
4511 p2p_increase_search_delay(
4513 wpas_p2p_search_delay(wpa_s));
4519 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4520 u32 interval1, u32 duration2, u32 interval2)
4522 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4524 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4527 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4528 wpa_s->current_ssid == NULL ||
4529 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4532 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4533 wpa_s->own_addr, wpa_s->assoc_freq,
4534 duration1, interval1, duration2, interval2);
4538 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4539 unsigned int interval)
4541 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4544 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4547 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4551 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4553 return wpa_s->current_ssid != NULL &&
4554 wpa_s->current_ssid->p2p_group &&
4555 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4559 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4561 struct wpa_supplicant *wpa_s = eloop_ctx;
4563 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
4564 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4569 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4571 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
4575 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4579 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4580 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4582 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4585 timeout = wpa_s->conf->p2p_group_idle;
4586 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4587 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4588 timeout = P2P_MAX_CLIENT_IDLE;
4594 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4595 timeout = 0; /* special client mode no-timeout */
4600 if (wpa_s->p2p_in_provisioning) {
4602 * Use the normal group formation timeout during the
4603 * provisioning phase to avoid terminating this process too
4604 * early due to group idle timeout.
4606 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4607 "during provisioning");
4611 if (wpa_s->show_group_started) {
4613 * Use the normal group formation timeout between the end of
4614 * the provisioning phase and completion of 4-way handshake to
4615 * avoid terminating this process too early due to group idle
4618 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4619 "while waiting for initial 4-way handshake to "
4624 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
4626 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4631 /* Returns 1 if the interface was removed */
4632 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4633 u16 reason_code, const u8 *ie, size_t ie_len,
4634 int locally_generated)
4636 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4638 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4641 if (!locally_generated)
4642 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4645 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4646 wpa_s->current_ssid &&
4647 wpa_s->current_ssid->p2p_group &&
4648 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4649 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4650 "session is ending");
4651 if (wpas_p2p_group_delete(wpa_s,
4652 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4661 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4662 u16 reason_code, const u8 *ie, size_t ie_len,
4663 int locally_generated)
4665 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4667 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4670 if (!locally_generated)
4671 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4676 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4678 struct p2p_data *p2p = wpa_s->global->p2p;
4683 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4686 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4687 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4689 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4690 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4693 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4694 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4696 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4697 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4699 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4700 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4701 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4702 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4703 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4706 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4707 p2p_set_sec_dev_types(p2p,
4708 (void *) wpa_s->conf->sec_device_type,
4709 wpa_s->conf->num_sec_device_types);
4711 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4713 p2p_remove_wps_vendor_extensions(p2p);
4714 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4715 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4717 p2p_add_wps_vendor_extension(
4718 p2p, wpa_s->conf->wps_vendor_ext[i]);
4722 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4723 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4725 country[0] = wpa_s->conf->country[0];
4726 country[1] = wpa_s->conf->country[1];
4728 p2p_set_country(p2p, country);
4731 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4732 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4733 wpa_s->conf->p2p_ssid_postfix ?
4734 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4738 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4739 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
4741 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4742 u8 reg_class, channel;
4745 if (wpa_s->conf->p2p_listen_reg_class &&
4746 wpa_s->conf->p2p_listen_channel) {
4747 reg_class = wpa_s->conf->p2p_listen_reg_class;
4748 channel = wpa_s->conf->p2p_listen_channel;
4752 * Pick one of the social channels randomly as the
4755 os_get_random((u8 *) &r, sizeof(r));
4756 channel = 1 + (r % 3) * 5;
4758 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4760 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4763 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4764 u8 op_reg_class, op_channel, cfg_op_channel;
4767 if (wpa_s->conf->p2p_oper_reg_class &&
4768 wpa_s->conf->p2p_oper_channel) {
4769 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4770 op_channel = wpa_s->conf->p2p_oper_channel;
4775 * Use random operation channel from (1, 6, 11)
4776 *if no other preference is indicated.
4778 os_get_random((u8 *) &r, sizeof(r));
4779 op_channel = 1 + (r % 3) * 5;
4782 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4785 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4789 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
4790 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
4791 wpa_s->conf->p2p_pref_chan) < 0) {
4792 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
4799 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4802 if (!wpa_s->ap_iface)
4804 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4809 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4811 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4813 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4816 wpa_s->global->cross_connection = enabled;
4817 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4820 struct wpa_supplicant *iface;
4822 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4824 if (iface->cross_connect_enabled == 0)
4827 iface->cross_connect_enabled = 0;
4828 iface->cross_connect_in_use = 0;
4829 wpa_msg(iface->parent, MSG_INFO,
4830 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4831 iface->ifname, iface->cross_connect_uplink);
4839 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4841 struct wpa_supplicant *iface;
4843 if (!uplink->global->cross_connection)
4846 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4847 if (!iface->cross_connect_enabled)
4849 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4852 if (iface->ap_iface == NULL)
4854 if (iface->cross_connect_in_use)
4857 iface->cross_connect_in_use = 1;
4858 wpa_msg(iface->parent, MSG_INFO,
4859 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4860 iface->ifname, iface->cross_connect_uplink);
4865 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4867 struct wpa_supplicant *iface;
4869 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4870 if (!iface->cross_connect_enabled)
4872 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4875 if (!iface->cross_connect_in_use)
4878 wpa_msg(iface->parent, MSG_INFO,
4879 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4880 iface->ifname, iface->cross_connect_uplink);
4881 iface->cross_connect_in_use = 0;
4886 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4888 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4889 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4890 wpa_s->cross_connect_disallowed)
4891 wpas_p2p_disable_cross_connect(wpa_s);
4893 wpas_p2p_enable_cross_connect(wpa_s);
4894 if (!wpa_s->ap_iface &&
4895 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4896 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4900 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4902 wpas_p2p_disable_cross_connect(wpa_s);
4903 if (!wpa_s->ap_iface &&
4904 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
4906 wpas_p2p_set_group_idle_timeout(wpa_s);
4910 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4912 struct wpa_supplicant *iface;
4914 if (!wpa_s->global->cross_connection)
4917 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4920 if (iface->drv_flags &
4921 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4923 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4926 wpa_s->cross_connect_enabled = 1;
4927 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4928 sizeof(wpa_s->cross_connect_uplink));
4929 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4930 "%s to %s whenever uplink is available",
4931 wpa_s->ifname, wpa_s->cross_connect_uplink);
4933 if (iface->ap_iface || iface->current_ssid == NULL ||
4934 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4935 iface->cross_connect_disallowed ||
4936 iface->wpa_state != WPA_COMPLETED)
4939 wpa_s->cross_connect_in_use = 1;
4940 wpa_msg(wpa_s->parent, MSG_INFO,
4941 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4942 wpa_s->ifname, wpa_s->cross_connect_uplink);
4948 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4950 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4951 !wpa_s->p2p_in_provisioning)
4952 return 0; /* not P2P client operation */
4954 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4956 if (wpa_s != wpa_s->parent)
4957 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4959 if (wpa_s->global->p2p)
4960 p2p_group_formation_failed(wpa_s->global->p2p);
4962 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4963 wpa_s->parent, NULL);
4965 wpas_group_formation_completed(wpa_s, 0);
4970 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4972 struct p2p_channels chan;
4974 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4977 os_memset(&chan, 0, sizeof(chan));
4978 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4979 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4984 p2p_update_channel_list(wpa_s->global->p2p, &chan);
4988 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4990 struct wpa_global *global = wpa_s->global;
4994 if (global->p2p == NULL)
4997 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4999 if (wpa_s->pending_interface_name[0] &&
5000 !is_zero_ether_addr(wpa_s->pending_interface_addr))
5003 peer = p2p_get_go_neg_peer(global->p2p);
5005 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5006 MACSTR, MAC2STR(peer));
5007 p2p_unauthorize(global->p2p, peer);
5011 wpas_p2p_stop_find(wpa_s);
5013 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5014 if (wpa_s == global->p2p_group_formation &&
5015 (wpa_s->p2p_in_provisioning ||
5016 wpa_s->parent->pending_interface_type ==
5017 WPA_IF_P2P_CLIENT)) {
5018 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5019 "formation found - cancelling",
5022 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5023 wpa_s->parent, NULL);
5024 wpas_p2p_group_delete(wpa_s,
5025 P2P_GROUP_REMOVAL_REQUESTED);
5031 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5039 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5041 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5044 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5045 "being available anymore");
5046 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
5050 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5051 int freq_24, int freq_5, int freq_overall)
5053 struct p2p_data *p2p = wpa_s->global->p2p;
5054 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5056 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5060 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5063 struct p2p_data *p2p = wpa_s->global->p2p;
5065 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5068 if (hwaddr_aton(addr, peer))
5071 return p2p_unauthorize(p2p, peer);
5076 * wpas_p2p_disconnect - Disconnect from a P2P Group
5077 * @wpa_s: Pointer to wpa_supplicant data
5078 * Returns: 0 on success, -1 on failure
5080 * This can be used to disconnect from a group in which the local end is a P2P
5081 * Client or to end a P2P Group in case the local end is the Group Owner. If a
5082 * virtual network interface was created for this group, that interface will be
5083 * removed. Otherwise, only the configured P2P group network will be removed
5084 * from the interface.
5086 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5092 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5097 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5099 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5102 return p2p_in_progress(wpa_s->global->p2p);
5106 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5107 struct wpa_ssid *ssid)
5109 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5110 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5111 wpa_s->parent, NULL) > 0) {
5113 * Remove the network by scheduling the group formation
5114 * timeout to happen immediately. The teardown code
5115 * needs to be scheduled to run asynch later so that we
5116 * don't delete data from under ourselves unexpectedly.
5117 * Calling wpas_p2p_group_formation_timeout directly
5118 * causes a series of crashes in WPS failure scenarios.
5120 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5121 "P2P group network getting removed");
5122 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5123 wpa_s->parent, NULL);
5128 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
5129 const u8 *addr, const u8 *ssid,
5135 for (s = wpa_s->conf->ssid; s; s = s->next) {
5136 if (s->disabled != 2)
5139 (ssid_len != s->ssid_len ||
5140 os_memcmp(ssid, s->ssid, ssid_len) != 0))
5142 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5143 return s; /* peer is GO in the persistent group */
5144 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5146 for (i = 0; i < s->num_p2p_clients; i++) {
5147 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5148 addr, ETH_ALEN) == 0)
5149 return s; /* peer is P2P client in persistent
5158 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5163 wpas_p2p_add_persistent_group_client(wpa_s, addr);
5167 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5170 struct wpa_supplicant *group = wpa_s;
5171 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
5172 if (wpa_s->global->p2p_group_formation)
5173 group = wpa_s->global->p2p_group_formation;
5174 wpa_s = wpa_s->parent;
5175 offchannel_send_action_done(wpa_s);
5177 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
5178 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5179 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5180 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5181 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
5182 wpa_s->p2p_persistent_id,
5183 wpa_s->p2p_pd_before_go_neg,
5184 wpa_s->p2p_go_ht40);
5188 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5190 if (!wpa_s->p2p_fallback_to_go_neg ||
5191 wpa_s->p2p_in_provisioning <= 5)
5194 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5195 return 0; /* peer operating as a GO */
5197 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5198 "fallback to GO Negotiation");
5199 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5205 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5207 const char *rn, *rn2;
5208 struct wpa_supplicant *ifs;
5210 if (wpa_s->wpa_state > WPA_SCANNING) {
5211 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5212 "concurrent operation",
5213 P2P_CONCURRENT_SEARCH_DELAY);
5214 return P2P_CONCURRENT_SEARCH_DELAY;
5217 if (!wpa_s->driver->get_radio_name)
5219 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5220 if (rn == NULL || rn[0] == '\0')
5223 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5224 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5227 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5228 if (!rn2 || os_strcmp(rn, rn2) != 0)
5230 if (ifs->wpa_state > WPA_SCANNING) {
5231 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5232 "delay due to concurrent operation on "
5234 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5235 return P2P_CONCURRENT_SEARCH_DELAY;