3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
25 #include "eapol_supp/eapol_supp_sm.h"
26 #include "rsn_supp/wpa.h"
27 #include "wpa_supplicant_i.h"
30 #include "config_ssid.h"
35 #include "offchannel.h"
36 #include "wps_supplicant.h"
37 #include "p2p_supplicant.h"
38 #include "wifi_display.h"
42 * How many times to try to scan to find the GO before giving up on join
45 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
47 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
49 #ifndef P2P_MAX_CLIENT_IDLE
51 * How many seconds to try to reconnect to the GO when connection in P2P client
54 #define P2P_MAX_CLIENT_IDLE 10
55 #endif /* P2P_MAX_CLIENT_IDLE */
57 #ifndef P2P_MAX_INITIAL_CONN_WAIT
59 * How many seconds to wait for initial 4-way handshake to get completed after
60 * WPS provisioning step or after the re-invocation of a persistent group on a
63 #define P2P_MAX_INITIAL_CONN_WAIT 10
64 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
66 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
68 * How many seconds to wait for initial 4-way handshake to get completed after
69 * WPS provisioning step on the GO. This controls the extra time the P2P
70 * operation is considered to be in progress (e.g., to delay other scans) after
71 * WPS provisioning has been completed on the GO during group formation.
73 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
74 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
76 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
78 * How many seconds to wait for initial 4-way handshake to get completed after
79 * re-invocation of a persistent group on the GO when the client is expected
80 * to connect automatically (no user interaction).
82 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
83 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
85 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
87 enum p2p_group_removal_reason {
88 P2P_GROUP_REMOVAL_UNKNOWN,
89 P2P_GROUP_REMOVAL_SILENT,
90 P2P_GROUP_REMOVAL_FORMATION_FAILED,
91 P2P_GROUP_REMOVAL_REQUESTED,
92 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
93 P2P_GROUP_REMOVAL_UNAVAILABLE,
94 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
95 P2P_GROUP_REMOVAL_PSK_FAILURE,
96 P2P_GROUP_REMOVAL_FREQ_CONFLICT
100 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
101 static struct wpa_supplicant *
102 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
104 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
105 const u8 *ssid, size_t ssid_len);
106 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
107 const u8 *ssid, size_t ssid_len);
108 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
109 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
110 const u8 *dev_addr, enum p2p_wps_method wps_method,
111 int auto_join, int freq,
112 const u8 *ssid, size_t ssid_len);
113 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
114 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
115 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
116 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
117 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
119 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
120 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
122 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
123 static void wpas_stop_listen(void *ctx);
124 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
125 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
129 * Get the number of concurrent channels that the HW can operate, but that are
130 * currently not in use by any of the wpa_supplicant interfaces.
132 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
137 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
141 num = get_shared_radio_freqs(wpa_s, freqs,
142 wpa_s->num_multichan_concurrent);
145 unused = wpa_s->num_multichan_concurrent - num;
146 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
152 * Get the frequencies that are currently in use by one or more of the virtual
153 * interfaces, and that are also valid for P2P operation.
156 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
157 struct wpa_used_freq_data *p2p_freqs,
160 struct wpa_used_freq_data *freqs;
161 unsigned int num, i, j;
163 freqs = os_calloc(wpa_s->num_multichan_concurrent,
164 sizeof(struct wpa_used_freq_data));
168 num = get_shared_radio_freqs_data(wpa_s, freqs,
169 wpa_s->num_multichan_concurrent);
171 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
173 for (i = 0, j = 0; i < num && j < len; i++) {
174 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
175 p2p_freqs[j++] = freqs[i];
180 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
186 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
189 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
191 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
192 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
193 wpas_p2p_num_unused_channels(wpa_s) > 0) {
194 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
198 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
202 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
203 struct wpa_scan_results *scan_res)
207 if (wpa_s->p2p_scan_work) {
208 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
209 wpa_s->p2p_scan_work = NULL;
210 radio_work_done(work);
213 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
216 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
217 (int) scan_res->num);
219 for (i = 0; i < scan_res->num; i++) {
220 struct wpa_scan_res *bss = scan_res->res[i];
221 struct os_reltime time_tmp_age, entry_ts;
225 time_tmp_age.sec = bss->age / 1000;
226 time_tmp_age.usec = (bss->age % 1000) * 1000;
227 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
229 ies = (const u8 *) (bss + 1);
230 ies_len = bss->ie_len;
231 if (bss->beacon_ie_len > 0 &&
232 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
233 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
234 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
235 MACSTR, MAC2STR(bss->bssid));
237 ies_len = bss->beacon_ie_len;
241 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
242 bss->freq, &entry_ts, bss->level,
247 p2p_scan_res_handled(wpa_s->global->p2p);
251 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
253 struct wpa_supplicant *wpa_s = work->wpa_s;
254 struct wpa_driver_scan_params *params = work->ctx;
258 if (!work->started) {
259 wpa_scan_free_params(params);
263 wpa_s->p2p_scan_work = NULL;
267 ret = wpa_drv_scan(wpa_s, params);
268 wpa_scan_free_params(params);
271 radio_work_done(work);
272 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
276 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
277 os_get_reltime(&wpa_s->scan_trigger_time);
278 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
279 wpa_s->own_scan_requested = 1;
280 wpa_s->p2p_scan_work = work;
284 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
287 if (wpa_s->global->p2p_24ghz_social_channels &&
288 (freq == 2412 || freq == 2437 || freq == 2462)) {
290 * Search all social channels regardless of whether these have
291 * been disabled for P2P operating channel use to avoid missing
296 return p2p_supported_freq(wpa_s->global->p2p, freq);
300 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
301 unsigned int num_req_dev_types,
302 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
304 struct wpa_supplicant *wpa_s = ctx;
305 struct wpa_driver_scan_params *params = NULL;
306 struct wpabuf *wps_ie, *ies;
307 unsigned int num_channels = 0;
308 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
312 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
315 if (wpa_s->p2p_scan_work) {
316 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
320 params = os_zalloc(sizeof(*params));
324 /* P2P Wildcard SSID */
325 params->num_ssids = 1;
326 n = os_malloc(P2P_WILDCARD_SSID_LEN);
329 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
330 params->ssids[0].ssid = n;
331 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
333 wpa_s->wps->dev.p2p = 1;
334 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
335 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
336 num_req_dev_types, req_dev_types);
340 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
341 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
346 wpabuf_put_buf(ies, wps_ie);
349 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
351 params->p2p_probe = 1;
352 n = os_malloc(wpabuf_len(ies));
357 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
358 params->extra_ies = n;
359 params->extra_ies_len = wpabuf_len(ies);
363 case P2P_SCAN_SOCIAL:
364 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
366 if (params->freqs == NULL)
368 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
369 if (wpas_p2p_search_social_channel(
370 wpa_s, social_channels_freq[i]))
371 params->freqs[num_channels++] =
372 social_channels_freq[i];
374 params->freqs[num_channels++] = 0;
378 case P2P_SCAN_SOCIAL_PLUS_ONE:
379 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
381 if (params->freqs == NULL)
383 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
384 if (wpas_p2p_search_social_channel(
385 wpa_s, social_channels_freq[i]))
386 params->freqs[num_channels++] =
387 social_channels_freq[i];
389 if (p2p_supported_freq(wpa_s->global->p2p, freq))
390 params->freqs[num_channels++] = freq;
391 params->freqs[num_channels++] = 0;
395 radio_remove_works(wpa_s, "p2p-scan", 0);
396 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
402 wpa_scan_free_params(params);
407 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
409 switch (p2p_group_interface) {
410 case P2P_GROUP_INTERFACE_PENDING:
411 return WPA_IF_P2P_GROUP;
412 case P2P_GROUP_INTERFACE_GO:
413 return WPA_IF_P2P_GO;
414 case P2P_GROUP_INTERFACE_CLIENT:
415 return WPA_IF_P2P_CLIENT;
418 return WPA_IF_P2P_GROUP;
422 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
424 size_t ssid_len, int *go)
428 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
429 for (s = wpa_s->conf->ssid; s; s = s->next) {
430 if (s->disabled != 0 || !s->p2p_group ||
431 s->ssid_len != ssid_len ||
432 os_memcmp(ssid, s->ssid, ssid_len) != 0)
434 if (s->mode == WPAS_MODE_P2P_GO &&
435 s != wpa_s->current_ssid)
438 *go = s->mode == WPAS_MODE_P2P_GO;
447 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
449 struct wpa_supplicant *wpa_s = eloop_ctx;
450 wpa_printf(MSG_DEBUG,
451 "P2P: Complete previously requested removal of %s",
453 wpas_p2p_disconnect(wpa_s);
457 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
458 struct wpa_supplicant *calling_wpa_s)
460 if (calling_wpa_s == wpa_s && wpa_s &&
461 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
463 * The calling wpa_s instance is going to be removed. Do that
464 * from an eloop callback to keep the instance available until
465 * the caller has returned. This my be needed, e.g., to provide
466 * control interface responses on the per-interface socket.
468 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
474 return wpas_p2p_disconnect(wpa_s);
478 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
479 enum p2p_group_removal_reason removal_reason)
481 struct wpa_ssid *ssid;
485 ssid = wpa_s->current_ssid;
488 * The current SSID was not known, but there may still be a
489 * pending P2P group interface waiting for provisioning or a
490 * P2P group that is trying to reconnect.
492 ssid = wpa_s->conf->ssid;
494 if (ssid->p2p_group && ssid->disabled != 2)
499 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
501 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
506 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
508 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
509 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
510 wpa_s->reassociate = 0;
511 wpa_s->disconnected = 1;
516 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
517 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
519 if (os_strcmp(gtype, "client") == 0) {
520 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
521 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
523 wpa_printf(MSG_DEBUG,
524 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
525 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
526 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
531 if (wpa_s->cross_connect_in_use) {
532 wpa_s->cross_connect_in_use = 0;
533 wpa_msg_global(wpa_s->parent, MSG_INFO,
534 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
535 wpa_s->ifname, wpa_s->cross_connect_uplink);
537 switch (removal_reason) {
538 case P2P_GROUP_REMOVAL_REQUESTED:
539 reason = " reason=REQUESTED";
541 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
542 reason = " reason=FORMATION_FAILED";
544 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
545 reason = " reason=IDLE";
547 case P2P_GROUP_REMOVAL_UNAVAILABLE:
548 reason = " reason=UNAVAILABLE";
550 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
551 reason = " reason=GO_ENDING_SESSION";
553 case P2P_GROUP_REMOVAL_PSK_FAILURE:
554 reason = " reason=PSK_FAILURE";
556 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
557 reason = " reason=FREQ_CONFLICT";
563 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
564 wpa_msg_global(wpa_s->parent, MSG_INFO,
565 P2P_EVENT_GROUP_REMOVED "%s %s%s",
566 wpa_s->ifname, gtype, reason);
569 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
570 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
571 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
572 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
573 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
574 wpa_s->parent, NULL) > 0) {
575 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
577 wpa_s->p2p_in_provisioning = 0;
580 wpa_s->p2p_in_invitation = 0;
583 * Make sure wait for the first client does not remain active after the
584 * group has been removed.
586 wpa_s->global->p2p_go_wait_client.sec = 0;
588 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
589 struct wpa_global *global;
591 enum wpa_driver_if_type type;
592 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
594 global = wpa_s->global;
595 ifname = os_strdup(wpa_s->ifname);
596 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
597 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
598 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
599 wpa_s = global->ifaces;
601 wpa_drv_if_remove(wpa_s, type, ifname);
606 if (!wpa_s->p2p_go_group_formation_completed) {
607 wpa_s->global->p2p_group_formation = NULL;
608 wpa_s->p2p_in_provisioning = 0;
611 wpa_s->show_group_started = 0;
612 os_free(wpa_s->go_params);
613 wpa_s->go_params = NULL;
615 os_free(wpa_s->p2p_group_common_freqs);
616 wpa_s->p2p_group_common_freqs = NULL;
617 wpa_s->p2p_group_common_freqs_num = 0;
619 wpa_s->waiting_presence_resp = 0;
621 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
622 if (ssid && (ssid->p2p_group ||
623 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
624 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
626 if (ssid == wpa_s->current_ssid) {
627 wpa_sm_set_config(wpa_s->wpa, NULL);
628 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
629 wpa_s->current_ssid = NULL;
632 * Networks objects created during any P2P activities are not
633 * exposed out as they might/will confuse certain non-P2P aware
634 * applications since these network objects won't behave like
637 * Likewise, we don't send out network removed signals for such
640 wpa_config_remove_network(wpa_s->conf, id);
641 wpa_supplicant_clear_status(wpa_s);
642 wpa_supplicant_cancel_sched_scan(wpa_s);
644 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
648 wpa_supplicant_ap_deinit(wpa_s);
650 wpa_drv_deinit_p2p_cli(wpa_s);
656 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
658 const u8 *ssid, size_t ssid_len)
666 if (wpa_s->go_params)
667 bssid = wpa_s->go_params->peer_interface_addr;
669 bssid = wpa_s->bssid;
671 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
672 if (bss == NULL && wpa_s->go_params &&
673 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
674 bss = wpa_bss_get_p2p_dev_addr(
675 wpa_s, wpa_s->go_params->peer_device_addr);
677 u8 iface_addr[ETH_ALEN];
678 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
680 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
683 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
684 "group is persistent - BSS " MACSTR " not found",
689 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
691 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
694 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
695 "group is persistent - BSS " MACSTR
696 " did not include P2P IE", MAC2STR(bssid));
697 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
698 (u8 *) (bss + 1), bss->ie_len);
699 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
700 ((u8 *) bss + 1) + bss->ie_len,
705 group_capab = p2p_get_group_capab(p2p);
706 addr = p2p_get_go_dev_addr(p2p);
707 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
708 "group_capab=0x%x", group_capab);
710 os_memcpy(go_dev_addr, addr, ETH_ALEN);
711 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
714 os_memset(go_dev_addr, 0, ETH_ALEN);
717 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
718 "go_dev_addr=" MACSTR,
719 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
721 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
725 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
726 struct wpa_ssid *ssid,
727 const u8 *go_dev_addr)
732 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
733 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
734 for (s = wpa_s->conf->ssid; s; s = s->next) {
735 if (s->disabled == 2 &&
736 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
737 s->ssid_len == ssid->ssid_len &&
738 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
743 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
745 if (ssid->passphrase && !s->passphrase)
747 else if (ssid->passphrase && s->passphrase &&
748 os_strcmp(ssid->passphrase, s->passphrase) != 0)
751 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
754 s = wpa_config_add_network(wpa_s->conf);
759 * Instead of network_added we emit persistent_group_added
760 * notification. Also to keep the defense checks in
761 * persistent_group obj registration method, we set the
762 * relevant flags in s to designate it as a persistent group.
765 s->p2p_persistent_group = 1;
766 wpas_notify_persistent_group_added(wpa_s, s);
767 wpa_config_set_network_defaults(s);
771 s->p2p_persistent_group = 1;
774 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
775 s->mode = ssid->mode;
776 s->auth_alg = WPA_AUTH_ALG_OPEN;
777 s->key_mgmt = WPA_KEY_MGMT_PSK;
778 s->proto = WPA_PROTO_RSN;
779 s->pairwise_cipher = WPA_CIPHER_CCMP;
781 if (ssid->passphrase) {
782 os_free(s->passphrase);
783 s->passphrase = os_strdup(ssid->passphrase);
787 os_memcpy(s->psk, ssid->psk, 32);
789 if (s->passphrase && !s->psk_set)
790 wpa_config_update_psk(s);
791 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
793 s->ssid = os_malloc(ssid->ssid_len);
796 s->ssid_len = ssid->ssid_len;
797 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
799 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
800 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
801 wpa_s->global->add_psk = NULL;
805 if (changed && wpa_s->conf->update_config &&
806 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
807 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
814 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
817 struct wpa_ssid *ssid, *s;
822 ssid = wpa_s->current_ssid;
823 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
824 !ssid->p2p_persistent_group)
827 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
828 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
831 if (s->ssid_len == ssid->ssid_len &&
832 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
839 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
840 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
844 if (i == s->num_p2p_clients - 1)
845 return; /* already the most recent entry */
847 /* move the entry to mark it most recent */
848 os_memmove(s->p2p_client_list + i * ETH_ALEN,
849 s->p2p_client_list + (i + 1) * ETH_ALEN,
850 (s->num_p2p_clients - i - 1) * ETH_ALEN);
851 os_memcpy(s->p2p_client_list +
852 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
857 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
858 n = os_realloc_array(s->p2p_client_list,
859 s->num_p2p_clients + 1, ETH_ALEN);
862 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
863 s->p2p_client_list = n;
864 s->num_p2p_clients++;
865 } else if (!found && s->p2p_client_list) {
866 /* Not enough room for an additional entry - drop the oldest
868 os_memmove(s->p2p_client_list,
869 s->p2p_client_list + ETH_ALEN,
870 (s->num_p2p_clients - 1) * ETH_ALEN);
871 os_memcpy(s->p2p_client_list +
872 (s->num_p2p_clients - 1) * ETH_ALEN,
876 if (wpa_s->parent->conf->update_config &&
877 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
878 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
882 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
883 int go, struct wpa_ssid *ssid, int freq,
884 const u8 *psk, const char *passphrase,
885 const u8 *go_dev_addr, int persistent,
888 const char *ssid_txt;
892 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
897 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
901 if (passphrase && passphrase[0] == '\0')
905 * Include PSK/passphrase only in the control interface message and
906 * leave it out from the debug log entry.
908 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
909 P2P_EVENT_GROUP_STARTED
910 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
912 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
913 psk ? " psk=" : "", psk_txt,
914 passphrase ? " passphrase=\"" : "",
915 passphrase ? passphrase : "",
916 passphrase ? "\"" : "",
917 MAC2STR(go_dev_addr),
918 persistent ? " [PERSISTENT]" : "", extra);
919 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
920 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
921 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
922 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
927 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
930 struct wpa_ssid *ssid;
933 u8 go_dev_addr[ETH_ALEN];
937 * This callback is likely called for the main interface. Update wpa_s
938 * to use the group interface if a new interface was created for the
941 if (wpa_s->global->p2p_group_formation)
942 wpa_s = wpa_s->global->p2p_group_formation;
943 if (wpa_s->p2p_go_group_formation_completed) {
944 wpa_s->global->p2p_group_formation = NULL;
945 wpa_s->p2p_in_provisioning = 0;
947 wpa_s->p2p_in_invitation = 0;
948 wpa_s->group_formation_reported = 1;
951 wpa_msg_global(wpa_s->parent, MSG_INFO,
952 P2P_EVENT_GROUP_FORMATION_FAILURE);
953 wpas_p2p_group_delete(wpa_s,
954 P2P_GROUP_REMOVAL_FORMATION_FAILED);
958 wpa_msg_global(wpa_s->parent, MSG_INFO,
959 P2P_EVENT_GROUP_FORMATION_SUCCESS);
961 ssid = wpa_s->current_ssid;
962 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
963 ssid->mode = WPAS_MODE_P2P_GO;
964 p2p_group_notif_formation_done(wpa_s->p2p_group);
965 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
970 client = ssid->mode == WPAS_MODE_INFRA;
971 if (ssid->mode == WPAS_MODE_P2P_GO) {
972 persistent = ssid->p2p_persistent_group;
973 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
976 persistent = wpas_p2p_persistent_group(wpa_s,
981 client = wpa_s->p2p_group_interface ==
982 P2P_GROUP_INTERFACE_CLIENT;
983 os_memset(go_dev_addr, 0, ETH_ALEN);
986 wpa_s->show_group_started = 0;
989 * Indicate event only after successfully completed 4-way
990 * handshake, i.e., when the interface is ready for data
993 wpa_s->show_group_started = 1;
995 wpas_p2p_group_started(wpa_s, 1, ssid,
996 ssid ? ssid->frequency : 0,
997 ssid && ssid->passphrase == NULL &&
998 ssid->psk_set ? ssid->psk : NULL,
999 ssid ? ssid->passphrase : NULL,
1000 go_dev_addr, persistent, "");
1001 wpas_p2p_cross_connect_setup(wpa_s);
1002 wpas_p2p_set_group_idle_timeout(wpa_s);
1006 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1009 os_free(wpa_s->global->add_psk);
1010 wpa_s->global->add_psk = NULL;
1012 if (network_id < 0 && ssid)
1013 network_id = ssid->id;
1015 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1016 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1021 struct send_action_work {
1027 unsigned int wait_time;
1032 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1035 struct wpa_supplicant *wpa_s = eloop_ctx;
1037 if (!wpa_s->p2p_send_action_work)
1040 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1041 os_free(wpa_s->p2p_send_action_work->ctx);
1042 radio_work_done(wpa_s->p2p_send_action_work);
1043 wpa_s->p2p_send_action_work = NULL;
1047 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1049 if (wpa_s->p2p_send_action_work) {
1050 struct send_action_work *awork;
1051 awork = wpa_s->p2p_send_action_work->ctx;
1052 if (awork->wait_time == 0) {
1054 radio_work_done(wpa_s->p2p_send_action_work);
1055 wpa_s->p2p_send_action_work = NULL;
1058 * In theory, this should not be needed, but number of
1059 * places in the P2P code is still using non-zero wait
1060 * time for the last Action frame in the sequence and
1061 * some of these do not call send_action_done().
1063 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1065 eloop_register_timeout(
1066 0, awork->wait_time * 1000,
1067 wpas_p2p_send_action_work_timeout,
1074 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1076 const u8 *dst, const u8 *src,
1078 const u8 *data, size_t data_len,
1079 enum offchannel_send_action_result
1082 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1084 wpas_p2p_action_tx_clear(wpa_s);
1086 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1090 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1091 res = P2P_SEND_ACTION_SUCCESS;
1093 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1094 res = P2P_SEND_ACTION_NO_ACK;
1096 case OFFCHANNEL_SEND_ACTION_FAILED:
1097 res = P2P_SEND_ACTION_FAILED;
1101 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1103 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1104 wpa_s->pending_pd_before_join &&
1105 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1106 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1107 wpa_s->p2p_fallback_to_go_neg) {
1108 wpa_s->pending_pd_before_join = 0;
1109 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1110 "during p2p_connect-auto");
1111 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1117 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1119 struct wpa_supplicant *wpa_s = work->wpa_s;
1120 struct send_action_work *awork = work->ctx;
1123 if (work->started) {
1124 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1126 wpa_s->p2p_send_action_work = NULL;
1127 offchannel_send_action_done(wpa_s);
1133 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1134 awork->bssid, awork->buf, awork->len,
1136 wpas_p2p_send_action_tx_status, 1) < 0) {
1138 radio_work_done(work);
1141 wpa_s->p2p_send_action_work = work;
1145 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1146 unsigned int freq, const u8 *dst,
1147 const u8 *src, const u8 *bssid, const u8 *buf,
1148 size_t len, unsigned int wait_time)
1150 struct send_action_work *awork;
1152 if (wpa_s->p2p_send_action_work) {
1153 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1157 awork = os_zalloc(sizeof(*awork) + len);
1162 os_memcpy(awork->dst, dst, ETH_ALEN);
1163 os_memcpy(awork->src, src, ETH_ALEN);
1164 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1166 awork->wait_time = wait_time;
1167 os_memcpy(awork->buf, buf, len);
1169 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1170 wpas_send_action_cb, awork) < 0) {
1179 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1180 const u8 *src, const u8 *bssid, const u8 *buf,
1181 size_t len, unsigned int wait_time)
1183 struct wpa_supplicant *wpa_s = ctx;
1184 int listen_freq = -1, send_freq = -1;
1186 if (wpa_s->p2p_listen_work)
1187 listen_freq = wpa_s->p2p_listen_work->freq;
1188 if (wpa_s->p2p_send_action_work)
1189 send_freq = wpa_s->p2p_send_action_work->freq;
1190 if (listen_freq != (int) freq && send_freq != (int) freq) {
1191 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1192 listen_freq, send_freq);
1193 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1197 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1198 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1200 wpas_p2p_send_action_tx_status, 1);
1204 static void wpas_send_action_done(void *ctx)
1206 struct wpa_supplicant *wpa_s = ctx;
1208 if (wpa_s->p2p_send_action_work) {
1209 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1211 os_free(wpa_s->p2p_send_action_work->ctx);
1212 radio_work_done(wpa_s->p2p_send_action_work);
1213 wpa_s->p2p_send_action_work = NULL;
1216 offchannel_send_action_done(wpa_s);
1220 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1221 struct p2p_go_neg_results *params)
1223 if (wpa_s->go_params == NULL) {
1224 wpa_s->go_params = os_malloc(sizeof(*params));
1225 if (wpa_s->go_params == NULL)
1228 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1233 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1234 struct p2p_go_neg_results *res)
1236 wpa_s->group_formation_reported = 0;
1237 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1238 " dev_addr " MACSTR " wps_method %d",
1239 MAC2STR(res->peer_interface_addr),
1240 MAC2STR(res->peer_device_addr), res->wps_method);
1241 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1242 res->ssid, res->ssid_len);
1243 wpa_supplicant_ap_deinit(wpa_s);
1244 wpas_copy_go_neg_results(wpa_s, res);
1245 if (res->wps_method == WPS_PBC) {
1246 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1247 #ifdef CONFIG_WPS_NFC
1248 } else if (res->wps_method == WPS_NFC) {
1249 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1250 res->peer_interface_addr,
1251 wpa_s->parent->p2p_oob_dev_pw,
1252 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1253 wpa_s->parent->p2p_oob_dev_pw_id ==
1254 DEV_PW_NFC_CONNECTION_HANDOVER ?
1255 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1258 #endif /* CONFIG_WPS_NFC */
1260 u16 dev_pw_id = DEV_PW_DEFAULT;
1261 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1262 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1263 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1264 wpa_s->p2p_pin, 1, dev_pw_id);
1269 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1270 struct wpa_ssid *ssid)
1272 struct wpa_ssid *persistent;
1273 struct psk_list_entry *psk;
1274 struct hostapd_data *hapd;
1276 if (!wpa_s->ap_iface)
1279 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1281 if (persistent == NULL)
1284 hapd = wpa_s->ap_iface->bss[0];
1286 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1288 struct hostapd_wpa_psk *hpsk;
1290 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1292 MAC2STR(psk->addr), psk->p2p);
1293 hpsk = os_zalloc(sizeof(*hpsk));
1296 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1298 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1300 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1301 hpsk->next = hapd->conf->ssid.wpa_psk;
1302 hapd->conf->ssid.wpa_psk = hpsk;
1307 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1311 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1312 wpa_s->p2p_group_common_freqs_num);
1314 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1315 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1316 i, wpa_s->p2p_group_common_freqs[i]);
1320 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1321 struct p2p_go_neg_results *params)
1323 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1325 wpa_s->p2p_group_common_freqs_num = 0;
1326 os_free(wpa_s->p2p_group_common_freqs);
1327 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1328 if (!wpa_s->p2p_group_common_freqs)
1331 for (i = 0; i < len; i++) {
1332 if (!wpa_s->go_params->freq_list[i])
1334 wpa_s->p2p_group_common_freqs[i] =
1335 wpa_s->go_params->freq_list[i];
1337 wpa_s->p2p_group_common_freqs_num = i;
1341 static void p2p_go_configured(void *ctx, void *data)
1343 struct wpa_supplicant *wpa_s = ctx;
1344 struct p2p_go_neg_results *params = data;
1345 struct wpa_ssid *ssid;
1346 int network_id = -1;
1348 p2p_go_save_group_common_freqs(wpa_s, params);
1349 p2p_go_dump_common_freqs(wpa_s);
1351 ssid = wpa_s->current_ssid;
1352 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1353 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1354 if (wpa_s->global->p2p_group_formation == wpa_s)
1355 wpa_s->global->p2p_group_formation = NULL;
1356 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1357 params->passphrase[0] == '\0' ?
1360 wpa_s->global->p2p_dev_addr,
1361 params->persistent_group, "");
1362 wpa_s->group_formation_reported = 1;
1364 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1365 if (params->persistent_group) {
1366 network_id = wpas_p2p_store_persistent_group(
1367 wpa_s->parent, ssid,
1368 wpa_s->global->p2p_dev_addr);
1369 wpas_p2p_add_psk_list(wpa_s, ssid);
1372 network_id = ssid->id;
1373 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1374 wpas_p2p_cross_connect_setup(wpa_s);
1375 wpas_p2p_set_group_idle_timeout(wpa_s);
1377 if (wpa_s->p2p_first_connection_timeout) {
1378 wpa_dbg(wpa_s, MSG_DEBUG,
1379 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1380 wpa_s->p2p_first_connection_timeout);
1381 wpa_s->p2p_go_group_formation_completed = 0;
1382 wpa_s->global->p2p_group_formation = wpa_s;
1383 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1384 wpa_s->parent, NULL);
1385 eloop_register_timeout(
1386 wpa_s->p2p_first_connection_timeout, 0,
1387 wpas_p2p_group_formation_timeout,
1388 wpa_s->parent, NULL);
1394 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1395 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1396 params->peer_interface_addr)) {
1397 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1401 if (params->wps_method == WPS_PBC) {
1402 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1403 params->peer_device_addr);
1404 #ifdef CONFIG_WPS_NFC
1405 } else if (params->wps_method == WPS_NFC) {
1406 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1407 DEV_PW_NFC_CONNECTION_HANDOVER &&
1408 !wpa_s->parent->p2p_oob_dev_pw) {
1409 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1412 wpas_ap_wps_add_nfc_pw(
1413 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1414 wpa_s->parent->p2p_oob_dev_pw,
1415 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1416 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1417 #endif /* CONFIG_WPS_NFC */
1418 } else if (wpa_s->p2p_pin[0])
1419 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1420 wpa_s->p2p_pin, NULL, 0, 0);
1421 os_free(wpa_s->go_params);
1422 wpa_s->go_params = NULL;
1426 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1427 struct p2p_go_neg_results *params,
1428 int group_formation)
1430 struct wpa_ssid *ssid;
1432 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1433 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1434 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1439 ssid = wpa_config_add_network(wpa_s->conf);
1441 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1445 wpa_s->show_group_started = 0;
1446 wpa_s->p2p_go_group_formation_completed = 0;
1447 wpa_s->group_formation_reported = 0;
1449 wpa_config_set_network_defaults(ssid);
1450 ssid->temporary = 1;
1451 ssid->p2p_group = 1;
1452 ssid->p2p_persistent_group = params->persistent_group;
1453 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1455 ssid->frequency = params->freq;
1456 ssid->ht40 = params->ht40;
1457 ssid->vht = params->vht;
1458 ssid->ssid = os_zalloc(params->ssid_len + 1);
1460 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1461 ssid->ssid_len = params->ssid_len;
1463 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1464 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1465 ssid->proto = WPA_PROTO_RSN;
1466 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1467 ssid->group_cipher = WPA_CIPHER_CCMP;
1468 if (params->freq > 56160) {
1470 * Enable GCMP instead of CCMP as pairwise_cipher and
1471 * group_cipher in 60 GHz.
1473 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1474 ssid->group_cipher = WPA_CIPHER_GCMP;
1476 if (os_strlen(params->passphrase) > 0) {
1477 ssid->passphrase = os_strdup(params->passphrase);
1478 if (ssid->passphrase == NULL) {
1479 wpa_msg_global(wpa_s, MSG_ERROR,
1480 "P2P: Failed to copy passphrase for GO");
1481 wpa_config_remove_network(wpa_s->conf, ssid->id);
1485 ssid->passphrase = NULL;
1486 ssid->psk_set = params->psk_set;
1488 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1489 else if (ssid->passphrase)
1490 wpa_config_update_psk(ssid);
1491 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1493 wpa_s->ap_configured_cb = p2p_go_configured;
1494 wpa_s->ap_configured_cb_ctx = wpa_s;
1495 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1496 wpa_s->scan_req = NORMAL_SCAN_REQ;
1497 wpa_s->connect_without_scan = ssid;
1498 wpa_s->reassociate = 1;
1499 wpa_s->disconnected = 0;
1500 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1502 wpa_supplicant_req_scan(wpa_s, 0, 0);
1506 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1507 const struct wpa_supplicant *src)
1509 struct wpa_config *d;
1510 const struct wpa_config *s;
1515 #define C(n) if (s->n) d->n = os_strdup(s->n)
1524 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1525 os_memcpy(d->sec_device_type, s->sec_device_type,
1526 sizeof(d->sec_device_type));
1527 d->num_sec_device_types = s->num_sec_device_types;
1529 d->p2p_group_idle = s->p2p_group_idle;
1530 d->p2p_intra_bss = s->p2p_intra_bss;
1531 d->persistent_reconnect = s->persistent_reconnect;
1532 d->max_num_sta = s->max_num_sta;
1533 d->pbc_in_m1 = s->pbc_in_m1;
1534 d->ignore_old_scan_res = s->ignore_old_scan_res;
1535 d->beacon_int = s->beacon_int;
1536 d->dtim_period = s->dtim_period;
1537 d->disassoc_low_ack = s->disassoc_low_ack;
1538 d->disable_scan_offload = s->disable_scan_offload;
1540 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1541 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1542 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1547 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1548 char *ifname, size_t len)
1550 char *ifname_ptr = wpa_s->ifname;
1552 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1553 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1554 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1557 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1558 if (os_strlen(ifname) >= IFNAMSIZ &&
1559 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1560 /* Try to avoid going over the IFNAMSIZ length limit */
1561 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1566 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1567 enum wpa_driver_if_type type)
1569 char ifname[120], force_ifname[120];
1571 if (wpa_s->pending_interface_name[0]) {
1572 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1573 "- skip creation of a new one");
1574 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1575 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1576 "unknown?! ifname='%s'",
1577 wpa_s->pending_interface_name);
1583 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1584 force_ifname[0] = '\0';
1586 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1588 wpa_s->p2p_group_idx++;
1590 wpa_s->pending_interface_type = type;
1591 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1592 wpa_s->pending_interface_addr, NULL) < 0) {
1593 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1598 if (force_ifname[0]) {
1599 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1601 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1602 sizeof(wpa_s->pending_interface_name));
1604 os_strlcpy(wpa_s->pending_interface_name, ifname,
1605 sizeof(wpa_s->pending_interface_name));
1606 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1607 MACSTR, wpa_s->pending_interface_name,
1608 MAC2STR(wpa_s->pending_interface_addr));
1614 static void wpas_p2p_remove_pending_group_interface(
1615 struct wpa_supplicant *wpa_s)
1617 if (!wpa_s->pending_interface_name[0] ||
1618 is_zero_ether_addr(wpa_s->pending_interface_addr))
1619 return; /* No pending virtual interface */
1621 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1622 wpa_s->pending_interface_name);
1623 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1624 wpa_s->pending_interface_name);
1625 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1626 wpa_s->pending_interface_name[0] = '\0';
1630 static struct wpa_supplicant *
1631 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1633 struct wpa_interface iface;
1634 struct wpa_supplicant *group_wpa_s;
1636 if (!wpa_s->pending_interface_name[0]) {
1637 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1638 if (!wpas_p2p_create_iface(wpa_s))
1641 * Something has forced us to remove the pending interface; try
1642 * to create a new one and hope for the best that we will get
1643 * the same local address.
1645 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1646 WPA_IF_P2P_CLIENT) < 0)
1650 os_memset(&iface, 0, sizeof(iface));
1651 iface.ifname = wpa_s->pending_interface_name;
1652 iface.driver = wpa_s->driver->name;
1653 if (wpa_s->conf->ctrl_interface == NULL &&
1654 wpa_s->parent != wpa_s &&
1656 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1657 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1659 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1660 iface.driver_param = wpa_s->conf->driver_param;
1661 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1662 if (group_wpa_s == NULL) {
1663 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1664 "wpa_supplicant interface");
1667 wpa_s->pending_interface_name[0] = '\0';
1668 group_wpa_s->parent = wpa_s;
1669 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1670 P2P_GROUP_INTERFACE_CLIENT;
1671 wpa_s->global->p2p_group_formation = group_wpa_s;
1673 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1679 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1682 struct wpa_supplicant *wpa_s = eloop_ctx;
1683 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1684 wpas_p2p_group_formation_failed(wpa_s);
1688 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1690 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1691 wpa_s->parent, NULL);
1692 if (wpa_s->global->p2p)
1693 p2p_group_formation_failed(wpa_s->global->p2p);
1694 wpas_group_formation_completed(wpa_s, 0);
1698 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
1700 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
1701 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1702 wpa_s->parent, NULL);
1703 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1704 wpa_s->parent, NULL);
1705 wpa_s->global->p2p_fail_on_wps_complete = 0;
1709 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1711 if (wpa_s->global->p2p_group_formation != wpa_s)
1713 /* Speed up group formation timeout since this cannot succeed */
1714 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1715 wpa_s->parent, NULL);
1716 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1717 wpa_s->parent, NULL);
1721 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1723 struct wpa_supplicant *wpa_s = ctx;
1725 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1726 wpa_drv_cancel_remain_on_channel(wpa_s);
1727 wpa_s->off_channel_freq = 0;
1728 wpa_s->roc_waiting_drv_freq = 0;
1732 wpa_msg_global(wpa_s, MSG_INFO,
1733 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1735 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1736 wpas_p2p_remove_pending_group_interface(wpa_s);
1740 if (wpa_s->p2p_go_ht40)
1742 if (wpa_s->p2p_go_vht)
1745 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1746 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1748 res->role_go ? "GO" : "client", res->freq, res->ht40,
1749 MAC2STR(res->peer_device_addr),
1750 MAC2STR(res->peer_interface_addr),
1751 p2p_wps_method_text(res->wps_method));
1752 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1754 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1755 struct wpa_ssid *ssid;
1756 ssid = wpa_config_get_network(wpa_s->conf,
1757 wpa_s->p2p_persistent_id);
1758 if (ssid && ssid->disabled == 2 &&
1759 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1760 size_t len = os_strlen(ssid->passphrase);
1761 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1762 "on requested persistent group");
1763 os_memcpy(res->passphrase, ssid->passphrase, len);
1764 res->passphrase[len] = '\0';
1768 if (wpa_s->create_p2p_iface) {
1769 struct wpa_supplicant *group_wpa_s =
1770 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1771 if (group_wpa_s == NULL) {
1772 wpas_p2p_remove_pending_group_interface(wpa_s);
1773 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
1775 wpas_p2p_group_formation_failed(wpa_s);
1778 if (group_wpa_s != wpa_s) {
1779 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1780 sizeof(group_wpa_s->p2p_pin));
1781 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1783 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1784 wpa_s->pending_interface_name[0] = '\0';
1785 group_wpa_s->p2p_in_provisioning = 1;
1788 wpas_start_wps_go(group_wpa_s, res, 1);
1790 wpas_start_wps_enrollee(group_wpa_s, res);
1792 wpa_s->p2p_in_provisioning = 1;
1793 wpa_s->global->p2p_group_formation = wpa_s;
1796 wpas_start_wps_go(wpa_s, res, 1);
1798 wpas_start_wps_enrollee(ctx, res);
1801 wpa_s->p2p_long_listen = 0;
1802 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1804 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1805 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1806 (res->peer_config_timeout % 100) * 10000,
1807 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1811 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1813 struct wpa_supplicant *wpa_s = ctx;
1814 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1815 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1817 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1821 static void wpas_dev_found(void *ctx, const u8 *addr,
1822 const struct p2p_peer_info *info,
1825 #ifndef CONFIG_NO_STDOUT_DEBUG
1826 struct wpa_supplicant *wpa_s = ctx;
1827 char devtype[WPS_DEV_TYPE_BUFSIZE];
1828 char *wfd_dev_info_hex = NULL;
1830 #ifdef CONFIG_WIFI_DISPLAY
1831 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1832 WFD_SUBELEM_DEVICE_INFO);
1833 #endif /* CONFIG_WIFI_DISPLAY */
1835 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1836 " p2p_dev_addr=" MACSTR
1837 " pri_dev_type=%s name='%s' config_methods=0x%x "
1838 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
1839 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1840 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1842 info->device_name, info->config_methods,
1843 info->dev_capab, info->group_capab,
1844 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
1845 wfd_dev_info_hex ? wfd_dev_info_hex : "",
1846 info->vendor_elems ? " vendor_elems=1" : "",
1849 os_free(wfd_dev_info_hex);
1850 #endif /* CONFIG_NO_STDOUT_DEBUG */
1852 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1856 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1858 struct wpa_supplicant *wpa_s = ctx;
1860 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1861 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1863 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1867 static void wpas_find_stopped(void *ctx)
1869 struct wpa_supplicant *wpa_s = ctx;
1870 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
1874 struct wpas_p2p_listen_work {
1876 unsigned int duration;
1877 struct wpabuf *probe_resp_ie;
1881 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
1885 wpabuf_free(lwork->probe_resp_ie);
1890 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
1892 struct wpas_p2p_listen_work *lwork;
1894 if (!wpa_s->p2p_listen_work)
1897 lwork = wpa_s->p2p_listen_work->ctx;
1898 wpas_p2p_listen_work_free(lwork);
1899 radio_work_done(wpa_s->p2p_listen_work);
1900 wpa_s->p2p_listen_work = NULL;
1904 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
1906 struct wpa_supplicant *wpa_s = work->wpa_s;
1907 struct wpas_p2p_listen_work *lwork = work->ctx;
1908 unsigned int duration;
1911 if (work->started) {
1912 wpa_s->p2p_listen_work = NULL;
1913 wpas_stop_listen(wpa_s);
1915 wpas_p2p_listen_work_free(lwork);
1919 wpa_s->p2p_listen_work = work;
1921 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
1923 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1924 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1925 "report received Probe Request frames");
1926 wpas_p2p_listen_work_done(wpa_s);
1930 wpa_s->pending_listen_freq = lwork->freq;
1931 wpa_s->pending_listen_duration = lwork->duration;
1933 duration = lwork->duration;
1934 #ifdef CONFIG_TESTING_OPTIONS
1935 if (wpa_s->extra_roc_dur) {
1936 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
1937 duration, duration + wpa_s->extra_roc_dur);
1938 duration += wpa_s->extra_roc_dur;
1940 #endif /* CONFIG_TESTING_OPTIONS */
1942 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
1943 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1944 "to remain on channel (%u MHz) for Listen "
1945 "state", lwork->freq);
1946 wpas_p2p_listen_work_done(wpa_s);
1947 wpa_s->pending_listen_freq = 0;
1950 wpa_s->off_channel_freq = 0;
1951 wpa_s->roc_waiting_drv_freq = lwork->freq;
1955 static int wpas_start_listen(void *ctx, unsigned int freq,
1956 unsigned int duration,
1957 const struct wpabuf *probe_resp_ie)
1959 struct wpa_supplicant *wpa_s = ctx;
1960 struct wpas_p2p_listen_work *lwork;
1962 if (wpa_s->p2p_listen_work) {
1963 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
1967 lwork = os_zalloc(sizeof(*lwork));
1971 lwork->duration = duration;
1972 if (probe_resp_ie) {
1973 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
1974 if (lwork->probe_resp_ie == NULL) {
1975 wpas_p2p_listen_work_free(lwork);
1980 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
1982 wpas_p2p_listen_work_free(lwork);
1990 static void wpas_stop_listen(void *ctx)
1992 struct wpa_supplicant *wpa_s = ctx;
1993 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1994 wpa_drv_cancel_remain_on_channel(wpa_s);
1995 wpa_s->off_channel_freq = 0;
1996 wpa_s->roc_waiting_drv_freq = 0;
1998 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1999 wpa_drv_probe_req_report(wpa_s, 0);
2000 wpas_p2p_listen_work_done(wpa_s);
2004 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
2006 struct wpa_supplicant *wpa_s = ctx;
2007 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
2012 * DNS Header section is used only to calculate compression pointers, so the
2013 * contents of this data does not matter, but the length needs to be reserved
2014 * in the virtual packet.
2016 #define DNS_HEADER_LEN 12
2019 * 27-octet in-memory packet from P2P specification containing two implied
2020 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
2022 #define P2P_SD_IN_MEMORY_LEN 27
2024 static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
2025 u8 **spos, const u8 *end)
2027 while (*spos < end) {
2028 u8 val = ((*spos)[0] & 0xc0) >> 6;
2031 if (val == 1 || val == 2) {
2032 /* These are reserved values in RFC 1035 */
2033 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
2034 "sequence starting with 0x%x", val);
2043 if (*spos + 2 > end) {
2044 wpa_printf(MSG_DEBUG, "P2P: No room for full "
2045 "DNS offset field");
2049 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
2050 if (offset >= *spos - start) {
2051 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
2052 "pointer offset %u", offset);
2057 spos_tmp = start + offset;
2058 return p2p_sd_dns_uncompress_label(upos, uend, start,
2064 len = (*spos)[0] & 0x3f;
2069 if (*spos + len > end) {
2070 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
2071 "sequence - no room for label with length "
2076 if (*upos + len + 2 > uend)
2079 os_memcpy(*upos, *spos, len);
2091 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
2092 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
2093 * not large enough */
2094 static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
2095 size_t msg_len, size_t offset)
2097 /* 27-octet in-memory packet from P2P specification */
2098 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
2099 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
2100 u8 *tmp, *end, *spos;
2106 if (offset > msg_len)
2109 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
2112 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
2113 end = spos + msg_len;
2116 os_memset(tmp, 0, DNS_HEADER_LEN);
2117 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
2118 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
2121 uend = buf + buf_len;
2123 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
2132 } else if (upos[-1] == '.')
2140 static struct p2p_srv_bonjour *
2141 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
2142 const struct wpabuf *query)
2144 struct p2p_srv_bonjour *bsrv;
2147 len = wpabuf_len(query);
2148 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2149 struct p2p_srv_bonjour, list) {
2150 if (len == wpabuf_len(bsrv->query) &&
2151 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
2159 static struct p2p_srv_upnp *
2160 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
2161 const char *service)
2163 struct p2p_srv_upnp *usrv;
2165 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2166 struct p2p_srv_upnp, list) {
2167 if (version == usrv->version &&
2168 os_strcmp(service, usrv->service) == 0)
2175 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
2180 if (wpabuf_tailroom(resp) < 5)
2183 /* Length (to be filled) */
2184 len_pos = wpabuf_put(resp, 2);
2185 wpabuf_put_u8(resp, srv_proto);
2186 wpabuf_put_u8(resp, srv_trans_id);
2188 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
2189 /* Response Data: empty */
2190 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2194 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
2195 struct wpabuf *resp, u8 srv_trans_id)
2197 struct p2p_srv_bonjour *bsrv;
2200 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
2202 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2203 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2207 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2208 struct p2p_srv_bonjour, list) {
2209 if (wpabuf_tailroom(resp) <
2210 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
2212 /* Length (to be filled) */
2213 len_pos = wpabuf_put(resp, 2);
2214 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2215 wpabuf_put_u8(resp, srv_trans_id);
2217 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2218 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2219 wpabuf_head(bsrv->resp),
2220 wpabuf_len(bsrv->resp));
2222 wpabuf_put_buf(resp, bsrv->query); /* Key */
2223 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2224 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2230 static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2233 char str_rx[256], str_srv[256];
2235 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2236 return 0; /* Too short to include DNS Type and Version */
2237 if (os_memcmp(query + query_len - 3,
2238 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2240 return 0; /* Mismatch in DNS Type or Version */
2241 if (query_len == wpabuf_len(bsrv->query) &&
2242 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2243 return 1; /* Binary match */
2245 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2247 return 0; /* Failed to uncompress query */
2248 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2249 wpabuf_head(bsrv->query),
2250 wpabuf_len(bsrv->query) - 3, 0))
2251 return 0; /* Failed to uncompress service */
2253 return os_strcmp(str_rx, str_srv) == 0;
2257 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2258 struct wpabuf *resp, u8 srv_trans_id,
2259 const u8 *query, size_t query_len)
2261 struct p2p_srv_bonjour *bsrv;
2265 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2267 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2268 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2269 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2274 if (query_len == 0) {
2275 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2279 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2280 struct p2p_srv_bonjour, list) {
2281 if (!match_bonjour_query(bsrv, query, query_len))
2284 if (wpabuf_tailroom(resp) <
2285 5 + query_len + wpabuf_len(bsrv->resp))
2290 /* Length (to be filled) */
2291 len_pos = wpabuf_put(resp, 2);
2292 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2293 wpabuf_put_u8(resp, srv_trans_id);
2296 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2297 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2298 wpabuf_head(bsrv->resp),
2299 wpabuf_len(bsrv->resp));
2302 wpabuf_put_data(resp, query, query_len); /* Key */
2303 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2305 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2309 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2311 if (wpabuf_tailroom(resp) < 5)
2314 /* Length (to be filled) */
2315 len_pos = wpabuf_put(resp, 2);
2316 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2317 wpabuf_put_u8(resp, srv_trans_id);
2320 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2321 /* Response Data: empty */
2322 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2328 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2329 struct wpabuf *resp, u8 srv_trans_id)
2331 struct p2p_srv_upnp *usrv;
2334 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2336 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2337 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2341 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2342 struct p2p_srv_upnp, list) {
2343 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2346 /* Length (to be filled) */
2347 len_pos = wpabuf_put(resp, 2);
2348 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2349 wpabuf_put_u8(resp, srv_trans_id);
2352 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2354 wpabuf_put_u8(resp, usrv->version);
2355 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2357 wpabuf_put_str(resp, usrv->service);
2358 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2364 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2365 struct wpabuf *resp, u8 srv_trans_id,
2366 const u8 *query, size_t query_len)
2368 struct p2p_srv_upnp *usrv;
2374 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2377 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2378 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2379 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2384 if (query_len == 0) {
2385 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2389 if (wpabuf_tailroom(resp) < 5)
2392 /* Length (to be filled) */
2393 len_pos = wpabuf_put(resp, 2);
2394 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2395 wpabuf_put_u8(resp, srv_trans_id);
2398 str = os_malloc(query_len);
2401 os_memcpy(str, query + 1, query_len - 1);
2402 str[query_len - 1] = '\0';
2404 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2405 struct p2p_srv_upnp, list) {
2406 if (version != usrv->version)
2409 if (os_strcmp(str, "ssdp:all") != 0 &&
2410 os_strstr(usrv->service, str) == NULL)
2413 if (wpabuf_tailroom(resp) < 2)
2417 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2419 wpabuf_put_u8(resp, version);
2421 wpabuf_put_u8(resp, ',');
2425 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2427 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2429 wpabuf_put_str(resp, usrv->service);
2434 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2437 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2438 /* Response Data: empty */
2441 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2445 #ifdef CONFIG_WIFI_DISPLAY
2446 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2447 struct wpabuf *resp, u8 srv_trans_id,
2448 const u8 *query, size_t query_len)
2454 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2456 if (!wpa_s->global->wifi_display) {
2457 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2458 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2463 if (query_len < 1) {
2464 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2469 if (wpabuf_tailroom(resp) < 5)
2474 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2476 /* TODO: role specific handling */
2478 /* Length (to be filled) */
2479 len_pos = wpabuf_put(resp, 2);
2480 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2481 wpabuf_put_u8(resp, srv_trans_id);
2482 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2484 while (pos < query + query_len) {
2485 if (*pos < MAX_WFD_SUBELEMS &&
2486 wpa_s->global->wfd_subelem[*pos] &&
2487 wpabuf_tailroom(resp) >=
2488 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2489 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2490 "subelement %u", *pos);
2491 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2496 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2498 #endif /* CONFIG_WIFI_DISPLAY */
2501 static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2502 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
2504 struct wpa_supplicant *wpa_s = ctx;
2505 const u8 *pos = tlvs;
2506 const u8 *end = tlvs + tlvs_len;
2509 struct wpabuf *resp;
2510 u8 srv_proto, srv_trans_id;
2514 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2516 buf_len = 2 * tlvs_len + 1;
2517 buf = os_malloc(buf_len);
2519 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2520 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2522 freq, MAC2STR(sa), dialog_token, update_indic,
2527 if (wpa_s->p2p_sd_over_ctrl_iface) {
2528 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2529 update_indic, tlvs, tlvs_len);
2530 return; /* to be processed by an external program */
2533 resp = wpabuf_alloc(10000);
2537 while (pos + 1 < end) {
2538 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2539 slen = WPA_GET_LE16(pos);
2541 if (pos + slen > end || slen < 2) {
2542 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2547 tlv_end = pos + slen;
2550 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2552 srv_trans_id = *pos++;
2553 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2556 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2557 pos, tlv_end - pos);
2560 if (wpa_s->force_long_sd) {
2561 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2563 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2564 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2568 switch (srv_proto) {
2569 case P2P_SERV_ALL_SERVICES:
2570 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2571 "for all services");
2572 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2573 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2574 wpa_printf(MSG_DEBUG, "P2P: No service "
2575 "discovery protocols available");
2576 wpas_sd_add_proto_not_avail(
2577 resp, P2P_SERV_ALL_SERVICES,
2581 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2582 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2584 case P2P_SERV_BONJOUR:
2585 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2586 pos, tlv_end - pos);
2589 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2590 pos, tlv_end - pos);
2592 #ifdef CONFIG_WIFI_DISPLAY
2593 case P2P_SERV_WIFI_DISPLAY:
2594 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2595 pos, tlv_end - pos);
2597 #endif /* CONFIG_WIFI_DISPLAY */
2599 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2600 "protocol %u", srv_proto);
2601 wpas_sd_add_proto_not_avail(resp, srv_proto,
2610 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2611 update_indic, tlvs, tlvs_len);
2613 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2619 static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2620 const u8 *tlvs, size_t tlvs_len)
2622 struct wpa_supplicant *wpa_s = ctx;
2623 const u8 *pos = tlvs;
2624 const u8 *end = tlvs + tlvs_len;
2630 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2632 if (tlvs_len > 1500) {
2633 /* TODO: better way for handling this */
2634 wpa_msg_ctrl(wpa_s, MSG_INFO,
2635 P2P_EVENT_SERV_DISC_RESP MACSTR
2636 " %u <long response: %u bytes>",
2637 MAC2STR(sa), update_indic,
2638 (unsigned int) tlvs_len);
2640 buf_len = 2 * tlvs_len + 1;
2641 buf = os_malloc(buf_len);
2643 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2644 wpa_msg_ctrl(wpa_s, MSG_INFO,
2645 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2646 MAC2STR(sa), update_indic, buf);
2652 u8 srv_proto, srv_trans_id, status;
2654 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2655 slen = WPA_GET_LE16(pos);
2657 if (pos + slen > end || slen < 3) {
2658 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2662 tlv_end = pos + slen;
2665 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2667 srv_trans_id = *pos++;
2668 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2671 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2674 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2675 pos, tlv_end - pos);
2680 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
2684 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2685 const struct wpabuf *tlvs)
2687 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2689 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
2693 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2694 u8 version, const char *query)
2696 struct wpabuf *tlvs;
2699 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2702 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2703 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2704 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2705 wpabuf_put_u8(tlvs, version);
2706 wpabuf_put_str(tlvs, query);
2707 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2713 #ifdef CONFIG_WIFI_DISPLAY
2715 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2716 const struct wpabuf *tlvs)
2718 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2720 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2724 #define MAX_WFD_SD_SUBELEMS 20
2726 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2727 const char *subelems)
2734 len = wpabuf_put(tlvs, 2);
2735 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2736 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2738 wpabuf_put_u8(tlvs, role);
2743 if (val >= 0 && val < 256) {
2744 wpabuf_put_u8(tlvs, val);
2746 if (count == MAX_WFD_SD_SUBELEMS)
2749 pos = os_strchr(pos + 1, ',');
2755 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2759 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2760 const u8 *dst, const char *role)
2762 struct wpabuf *tlvs;
2764 const char *subelems;
2767 subelems = os_strchr(role, ' ');
2768 if (subelems == NULL)
2772 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2776 if (os_strstr(role, "[source]"))
2777 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2778 if (os_strstr(role, "[pri-sink]"))
2779 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2780 if (os_strstr(role, "[sec-sink]"))
2781 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2782 if (os_strstr(role, "[source+sink]"))
2783 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2785 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2790 #endif /* CONFIG_WIFI_DISPLAY */
2793 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
2795 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2797 return p2p_sd_cancel_request(wpa_s->global->p2p,
2798 (void *) (uintptr_t) req);
2802 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2803 const u8 *dst, u8 dialog_token,
2804 const struct wpabuf *resp_tlvs)
2806 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2808 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2813 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2815 if (wpa_s->global->p2p)
2816 p2p_sd_service_update(wpa_s->global->p2p);
2820 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2822 dl_list_del(&bsrv->list);
2823 wpabuf_free(bsrv->query);
2824 wpabuf_free(bsrv->resp);
2829 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2831 dl_list_del(&usrv->list);
2832 os_free(usrv->service);
2837 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2839 struct p2p_srv_bonjour *bsrv, *bn;
2840 struct p2p_srv_upnp *usrv, *un;
2842 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2843 struct p2p_srv_bonjour, list)
2844 wpas_p2p_srv_bonjour_free(bsrv);
2846 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2847 struct p2p_srv_upnp, list)
2848 wpas_p2p_srv_upnp_free(usrv);
2850 wpas_p2p_sd_service_update(wpa_s);
2854 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2855 struct wpabuf *query, struct wpabuf *resp)
2857 struct p2p_srv_bonjour *bsrv;
2859 bsrv = os_zalloc(sizeof(*bsrv));
2862 bsrv->query = query;
2864 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2866 wpas_p2p_sd_service_update(wpa_s);
2871 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2872 const struct wpabuf *query)
2874 struct p2p_srv_bonjour *bsrv;
2876 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2879 wpas_p2p_srv_bonjour_free(bsrv);
2880 wpas_p2p_sd_service_update(wpa_s);
2885 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2886 const char *service)
2888 struct p2p_srv_upnp *usrv;
2890 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2891 return 0; /* Already listed */
2892 usrv = os_zalloc(sizeof(*usrv));
2895 usrv->version = version;
2896 usrv->service = os_strdup(service);
2897 if (usrv->service == NULL) {
2901 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2903 wpas_p2p_sd_service_update(wpa_s);
2908 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2909 const char *service)
2911 struct p2p_srv_upnp *usrv;
2913 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2916 wpas_p2p_srv_upnp_free(usrv);
2917 wpas_p2p_sd_service_update(wpa_s);
2922 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2923 const u8 *peer, const char *params,
2924 unsigned int generated_pin)
2926 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2927 " %08d%s", MAC2STR(peer), generated_pin, params);
2931 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2932 const u8 *peer, const char *params)
2934 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2935 "%s", MAC2STR(peer), params);
2939 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2940 const u8 *dev_addr, const u8 *pri_dev_type,
2941 const char *dev_name, u16 supp_config_methods,
2942 u8 dev_capab, u8 group_capab, const u8 *group_id,
2943 size_t group_id_len)
2945 struct wpa_supplicant *wpa_s = ctx;
2946 char devtype[WPS_DEV_TYPE_BUFSIZE];
2948 u8 empty_dev_type[8];
2949 unsigned int generated_pin = 0;
2950 struct wpa_supplicant *group = NULL;
2953 for (group = wpa_s->global->ifaces; group; group = group->next)
2955 struct wpa_ssid *s = group->current_ssid;
2957 s->mode == WPAS_MODE_P2P_GO &&
2958 group_id_len - ETH_ALEN == s->ssid_len &&
2959 os_memcmp(group_id + ETH_ALEN, s->ssid,
2965 if (pri_dev_type == NULL) {
2966 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2967 pri_dev_type = empty_dev_type;
2969 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2970 " pri_dev_type=%s name='%s' config_methods=0x%x "
2971 "dev_capab=0x%x group_capab=0x%x%s%s",
2973 wps_dev_type_bin2str(pri_dev_type, devtype,
2975 dev_name, supp_config_methods, dev_capab, group_capab,
2976 group ? " group=" : "",
2977 group ? group->ifname : "");
2978 params[sizeof(params) - 1] = '\0';
2980 if (config_methods & WPS_CONFIG_DISPLAY) {
2981 generated_pin = wps_generate_pin();
2982 wpas_prov_disc_local_display(wpa_s, peer, params,
2984 } else if (config_methods & WPS_CONFIG_KEYPAD)
2985 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2986 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2987 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2988 MACSTR "%s", MAC2STR(peer), params);
2990 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2991 P2P_PROV_DISC_SUCCESS,
2992 config_methods, generated_pin);
2996 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2998 struct wpa_supplicant *wpa_s = ctx;
2999 unsigned int generated_pin = 0;
3002 if (wpa_s->pending_pd_before_join &&
3003 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
3004 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
3005 wpa_s->pending_pd_before_join = 0;
3006 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
3007 "join-existing-group operation");
3008 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
3012 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
3013 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
3014 os_snprintf(params, sizeof(params), " peer_go=%d",
3015 wpa_s->pending_pd_use == AUTO_PD_JOIN);
3019 if (config_methods & WPS_CONFIG_DISPLAY)
3020 wpas_prov_disc_local_keypad(wpa_s, peer, params);
3021 else if (config_methods & WPS_CONFIG_KEYPAD) {
3022 generated_pin = wps_generate_pin();
3023 wpas_prov_disc_local_display(wpa_s, peer, params,
3025 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
3026 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
3027 MACSTR "%s", MAC2STR(peer), params);
3029 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
3030 P2P_PROV_DISC_SUCCESS,
3031 config_methods, generated_pin);
3035 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
3036 enum p2p_prov_disc_status status)
3038 struct wpa_supplicant *wpa_s = ctx;
3040 if (wpa_s->p2p_fallback_to_go_neg) {
3041 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
3042 "failed - fall back to GO Negotiation");
3043 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
3047 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
3048 wpa_s->pending_pd_before_join = 0;
3049 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
3050 "join-existing-group operation (no ACK for PD "
3052 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
3056 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3057 " p2p_dev_addr=" MACSTR " status=%d",
3058 MAC2STR(peer), status);
3060 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
3065 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
3067 if (channels == NULL)
3068 return 1; /* Assume no restrictions */
3069 return p2p_channels_includes_freq(channels, freq);
3075 * Pick the best frequency to use from all the currently used frequencies.
3077 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
3078 struct wpa_used_freq_data *freqs,
3083 /* find a candidate freq that is supported by P2P */
3084 for (c = 0; c < num; c++)
3085 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
3091 /* once we have a candidate, try to find a 'better' one */
3092 for (i = c + 1; i < num; i++) {
3093 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
3097 * 1. Infrastructure station interfaces have higher preference.
3098 * 2. P2P Clients have higher preference.
3101 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
3106 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
3109 return freqs[c].freq;
3113 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
3114 const u8 *go_dev_addr, const u8 *ssid,
3115 size_t ssid_len, int *go, u8 *group_bssid,
3116 int *force_freq, int persistent_group,
3117 const struct p2p_channels *channels,
3120 struct wpa_supplicant *wpa_s = ctx;
3122 struct wpa_used_freq_data *freqs;
3123 struct wpa_supplicant *grp;
3126 if (!persistent_group) {
3127 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3128 " to join an active group (SSID: %s)",
3129 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
3130 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3131 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
3133 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
3134 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
3135 "authorized invitation");
3139 #ifdef CONFIG_WPS_NFC
3140 if (dev_pw_id >= 0 && wpa_s->parent->p2p_nfc_tag_enabled &&
3141 dev_pw_id == wpa_s->parent->p2p_oob_dev_pw_id) {
3142 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
3143 wpa_s->parent->p2p_wps_method = WPS_NFC;
3144 wpa_s->parent->pending_join_wps_method = WPS_NFC;
3145 os_memcpy(wpa_s->parent->pending_join_dev_addr,
3146 go_dev_addr, ETH_ALEN);
3147 os_memcpy(wpa_s->parent->pending_join_iface_addr,
3151 #endif /* CONFIG_WPS_NFC */
3154 * Do not accept the invitation automatically; notify user and
3157 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3160 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
3162 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
3163 "running persistent group");
3165 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
3169 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3170 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
3171 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
3172 "invitation to re-invoke a persistent group");
3173 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
3174 } else if (!wpa_s->conf->persistent_reconnect)
3175 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3177 for (s = wpa_s->conf->ssid; s; s = s->next) {
3178 if (s->disabled == 2 &&
3179 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
3180 s->ssid_len == ssid_len &&
3181 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3186 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3187 " requested reinvocation of an unknown group",
3189 return P2P_SC_FAIL_UNKNOWN_GROUP;
3192 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
3194 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3195 wpa_printf(MSG_DEBUG, "P2P: The only available "
3196 "interface is already in use - reject "
3198 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3200 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
3201 } else if (s->mode == WPAS_MODE_P2P_GO) {
3203 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
3205 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3206 "interface address for the group");
3207 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3209 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
3214 wpas_p2p_set_own_freq_preference(wpa_s, 0);
3217 freqs = os_calloc(wpa_s->num_multichan_concurrent,
3218 sizeof(struct wpa_used_freq_data));
3220 int num_channels = wpa_s->num_multichan_concurrent;
3221 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
3222 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
3226 /* Get one of the frequencies currently in use */
3227 if (best_freq > 0) {
3228 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
3229 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
3231 if (wpa_s->num_multichan_concurrent < 2 ||
3232 wpas_p2p_num_unused_channels(wpa_s) < 1) {
3233 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
3234 *force_freq = best_freq;
3238 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
3239 wpas_p2p_num_unused_channels(wpa_s) > 0) {
3241 /* We are the client */
3242 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
3243 "running a GO but we are capable of MCC, "
3244 "figure out the best channel to use");
3246 } else if (!freq_included(channels, *force_freq)) {
3247 /* We are the GO, and *force_freq is not in the
3249 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3250 "in intersection but we are capable of MCC, "
3251 "figure out the best channel to use",
3257 return P2P_SC_SUCCESS;
3261 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3262 const u8 *ssid, size_t ssid_len,
3263 const u8 *go_dev_addr, u8 status,
3266 struct wpa_supplicant *wpa_s = ctx;
3269 for (s = wpa_s->conf->ssid; s; s = s->next) {
3270 if (s->disabled == 2 &&
3271 s->ssid_len == ssid_len &&
3272 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3276 if (status == P2P_SC_SUCCESS) {
3277 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3278 " was accepted; op_freq=%d MHz, SSID=%s",
3279 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3281 int go = s->mode == WPAS_MODE_P2P_GO;
3282 wpas_p2p_group_add_persistent(
3283 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
3284 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3286 wpa_s->user_initiated_pd = 0;
3287 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3288 wpa_s->p2p_wps_method, 0, op_freq,
3294 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3295 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3296 " was rejected (status %u)", MAC2STR(sa), status);
3302 wpa_msg_global(wpa_s, MSG_INFO,
3303 P2P_EVENT_INVITATION_RECEIVED
3304 "sa=" MACSTR " go_dev_addr=" MACSTR
3305 " bssid=" MACSTR " unknown-network",
3306 MAC2STR(sa), MAC2STR(go_dev_addr),
3309 wpa_msg_global(wpa_s, MSG_INFO,
3310 P2P_EVENT_INVITATION_RECEIVED
3311 "sa=" MACSTR " go_dev_addr=" MACSTR
3313 MAC2STR(sa), MAC2STR(go_dev_addr));
3318 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3319 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3320 "sa=" MACSTR " persistent=%d freq=%d",
3321 MAC2STR(sa), s->id, op_freq);
3323 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3324 "sa=" MACSTR " persistent=%d",
3325 MAC2STR(sa), s->id);
3330 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3331 struct wpa_ssid *ssid,
3332 const u8 *peer, int inv)
3339 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3340 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
3344 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3345 if (ssid->mode != WPAS_MODE_P2P_GO &&
3346 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3347 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3348 "due to invitation result", ssid->id);
3349 wpas_notify_network_removed(wpa_s, ssid);
3350 wpa_config_remove_network(wpa_s->conf, ssid->id);
3353 return; /* Peer not found in client list */
3356 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3357 "group %d client list%s",
3358 MAC2STR(peer), ssid->id,
3359 inv ? " due to invitation result" : "");
3360 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
3361 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
3362 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
3363 ssid->num_p2p_clients--;
3364 if (wpa_s->parent->conf->update_config &&
3365 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
3366 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3370 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3373 struct wpa_ssid *ssid;
3375 wpa_s = wpa_s->global->p2p_invite_group;
3377 return; /* No known invitation group */
3378 ssid = wpa_s->current_ssid;
3379 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3380 !ssid->p2p_persistent_group)
3381 return; /* Not operating as a GO in persistent group */
3382 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3383 ssid->ssid, ssid->ssid_len);
3384 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3388 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3389 const struct p2p_channels *channels,
3390 const u8 *peer, int neg_freq,
3393 struct wpa_supplicant *wpa_s = ctx;
3394 struct wpa_ssid *ssid;
3398 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3399 "status=%d " MACSTR,
3400 status, MAC2STR(bssid));
3402 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3403 "status=%d ", status);
3405 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3407 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3408 status, MAC2STR(peer));
3409 if (wpa_s->pending_invite_ssid_id == -1) {
3410 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3411 wpas_remove_persistent_client(wpa_s, peer);
3412 return; /* Invitation to active group */
3415 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3416 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3417 "invitation exchange to indicate readiness for "
3421 if (status != P2P_SC_SUCCESS) {
3422 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3423 ssid = wpa_config_get_network(
3424 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3425 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3427 wpas_p2p_remove_pending_group_interface(wpa_s);
3431 ssid = wpa_config_get_network(wpa_s->conf,
3432 wpa_s->pending_invite_ssid_id);
3434 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3435 "data matching with invitation");
3440 * The peer could have missed our ctrl::ack frame for Invitation
3441 * Response and continue retransmitting the frame. To reduce the
3442 * likelihood of the peer not getting successful TX status for the
3443 * Invitation Response frame, wait a short time here before starting
3444 * the persistent group so that we will remain on the current channel to
3445 * acknowledge any possible retransmission from the peer.
3447 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3448 "starting persistent group");
3451 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3452 freq_included(channels, neg_freq))
3454 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3455 freq_included(channels, peer_oper_freq))
3456 freq = peer_oper_freq;
3460 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3461 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3462 wpas_p2p_group_add_persistent(wpa_s, ssid,
3463 ssid->mode == WPAS_MODE_P2P_GO,
3464 wpa_s->p2p_persistent_go_freq,
3466 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3468 ssid->mode == WPAS_MODE_P2P_GO ?
3469 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3474 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3477 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3479 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3483 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3485 reg->channel[reg->channels] = chan;
3490 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3491 struct p2p_channels *chan,
3492 struct p2p_channels *cli_chan)
3496 wpa_s->global->p2p_24ghz_social_channels = 1;
3498 os_memset(cli_chan, 0, sizeof(*cli_chan));
3500 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3503 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3504 chan->reg_class[cla].reg_class = 81;
3505 chan->reg_class[cla].channels = 0;
3506 for (i = 0; i < 11; i++) {
3507 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3508 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3510 if (chan->reg_class[cla].channels)
3513 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3516 /* Operating class 115 - 5 GHz, channels 36-48 */
3517 chan->reg_class[cla].reg_class = 115;
3518 chan->reg_class[cla].channels = 0;
3519 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3520 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3521 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3522 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3523 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3524 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3525 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3526 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3527 if (chan->reg_class[cla].channels)
3530 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3533 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3534 chan->reg_class[cla].reg_class = 124;
3535 chan->reg_class[cla].channels = 0;
3536 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3537 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3538 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3539 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3540 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3541 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3542 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3543 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3544 if (chan->reg_class[cla].channels)
3547 chan->reg_classes = cla;
3552 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3554 enum hostapd_hw_mode mode)
3558 for (i = 0; i < num_modes; i++) {
3559 if (modes[i].mode == mode)
3568 NOT_ALLOWED, NO_IR, ALLOWED
3571 static int has_channel(struct wpa_global *global,
3572 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3577 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3579 if (wpas_p2p_disallowed_freq(global, freq))
3582 for (i = 0; i < mode->num_channels; i++) {
3583 if (mode->channels[i].chan == chan) {
3585 *flags = mode->channels[i].flag;
3586 if (mode->channels[i].flag &
3587 (HOSTAPD_CHAN_DISABLED |
3588 HOSTAPD_CHAN_RADAR))
3590 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3600 struct p2p_oper_class_map {
3601 enum hostapd_hw_mode mode;
3606 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3609 static struct p2p_oper_class_map op_class[] = {
3610 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3611 #if 0 /* Do not enable HT40 on 2 GHz for now */
3612 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3613 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3615 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3616 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3617 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3618 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3619 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3620 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3623 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3624 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3625 * 80 MHz, but currently use the following definition for simplicity
3626 * (these center frequencies are not actual channels, which makes
3627 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3628 * removing invalid channels.
3630 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3631 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3632 { -1, 0, 0, 0, 0, BW20 }
3636 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3637 struct hostapd_hw_modes *mode,
3640 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3643 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3646 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3648 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3649 * so the center channel is 6 channels away from the start/end.
3651 if (channel >= center_channels[i] - 6 &&
3652 channel <= center_channels[i] + 6)
3653 return center_channels[i];
3659 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3660 struct hostapd_hw_modes *mode,
3665 enum chan_allowed res, ret = ALLOWED;
3667 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3670 if (center_chan >= 58 && center_chan <= 138)
3671 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3673 /* check all the channels are available */
3674 for (i = 0; i < 4; i++) {
3675 int adj_chan = center_chan - 6 + i * 4;
3677 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3678 if (res == NOT_ALLOWED)
3683 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3685 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3687 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3689 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3697 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3698 struct hostapd_hw_modes *mode,
3702 enum chan_allowed res, res2;
3704 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3705 if (bw == BW40MINUS) {
3706 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3708 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3709 } else if (bw == BW40PLUS) {
3710 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3712 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3713 } else if (bw == BW80) {
3714 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3717 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3719 if (res == NO_IR || res2 == NO_IR)
3725 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3726 struct p2p_channels *chan,
3727 struct p2p_channels *cli_chan)
3729 struct hostapd_hw_modes *mode;
3730 int cla, op, cli_cla;
3732 if (wpa_s->hw.modes == NULL) {
3733 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3734 "of all supported channels; assume dualband "
3736 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3741 for (op = 0; op_class[op].op_class; op++) {
3742 struct p2p_oper_class_map *o = &op_class[op];
3744 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3746 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3749 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3750 wpa_s->global->p2p_24ghz_social_channels = 1;
3751 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3752 enum chan_allowed res;
3753 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3754 if (res == ALLOWED) {
3756 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3758 reg = &chan->reg_class[cla];
3760 reg->reg_class = o->op_class;
3762 reg->channel[reg->channels] = ch;
3764 } else if (res == NO_IR &&
3765 wpa_s->conf->p2p_add_cli_chan) {
3766 if (cli_reg == NULL) {
3767 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3769 cli_reg = &cli_chan->reg_class[cli_cla];
3771 cli_reg->reg_class = o->op_class;
3773 cli_reg->channel[cli_reg->channels] = ch;
3774 cli_reg->channels++;
3778 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3779 reg->channel, reg->channels);
3782 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3783 cli_reg->channel, cli_reg->channels);
3787 chan->reg_classes = cla;
3788 cli_chan->reg_classes = cli_cla;
3794 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3795 struct hostapd_hw_modes *mode, u8 channel)
3798 enum chan_allowed ret;
3800 for (op = 0; op_class[op].op_class; op++) {
3801 struct p2p_oper_class_map *o = &op_class[op];
3804 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3805 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3806 o->bw == BW20 || ch != channel)
3808 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3810 return (o->bw == BW40MINUS) ? -1 : 1;
3817 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3818 struct hostapd_hw_modes *mode, u8 channel)
3820 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3823 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3827 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3830 struct wpa_supplicant *wpa_s = ctx;
3832 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3833 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3839 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3843 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3844 const u8 *ssid, size_t ssid_len)
3846 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3847 struct wpa_ssid *s = wpa_s->current_ssid;
3850 if (s->mode != WPAS_MODE_P2P_GO &&
3851 s->mode != WPAS_MODE_AP &&
3852 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3854 if (s->ssid_len != ssid_len ||
3855 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3865 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3866 const u8 *peer_dev_addr)
3868 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3869 struct wpa_ssid *ssid = wpa_s->current_ssid;
3872 if (ssid->mode != WPAS_MODE_INFRA)
3874 if (wpa_s->wpa_state != WPA_COMPLETED &&
3875 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3877 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3885 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3887 struct wpa_supplicant *wpa_s = ctx;
3889 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3893 static int wpas_is_concurrent_session_active(void *ctx)
3895 struct wpa_supplicant *wpa_s = ctx;
3896 struct wpa_supplicant *ifs;
3898 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3901 if (ifs->wpa_state > WPA_ASSOCIATED)
3908 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3910 struct wpa_supplicant *wpa_s = ctx;
3911 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3915 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3916 const char *conf_p2p_dev)
3918 struct wpa_interface iface;
3919 struct wpa_supplicant *p2pdev_wpa_s;
3921 char force_name[100];
3924 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3926 force_name[0] = '\0';
3927 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3928 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3929 force_name, wpa_s->pending_interface_addr, NULL);
3931 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3934 os_strlcpy(wpa_s->pending_interface_name, ifname,
3935 sizeof(wpa_s->pending_interface_name));
3937 os_memset(&iface, 0, sizeof(iface));
3939 iface.ifname = wpa_s->pending_interface_name;
3940 iface.driver = wpa_s->driver->name;
3941 iface.driver_param = wpa_s->conf->driver_param;
3944 * If a P2P Device configuration file was given, use it as the interface
3945 * configuration file (instead of using parent's configuration file.
3948 iface.confname = conf_p2p_dev;
3949 iface.ctrl_interface = NULL;
3951 iface.confname = wpa_s->confname;
3952 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3954 iface.conf_p2p_dev = NULL;
3956 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3957 if (!p2pdev_wpa_s) {
3958 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3961 p2pdev_wpa_s->parent = wpa_s;
3962 wpa_s->p2p_dev = p2pdev_wpa_s;
3964 wpa_s->pending_interface_name[0] = '\0';
3969 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3970 const u8 *noa, size_t noa_len)
3972 struct wpa_supplicant *wpa_s, *intf = ctx;
3975 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3976 if (wpa_s->waiting_presence_resp)
3980 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3983 wpa_s->waiting_presence_resp = 0;
3985 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3986 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3987 " status=%u noa=%s", MAC2STR(src), status, hex);
3991 static int _wpas_p2p_in_progress(void *ctx)
3993 struct wpa_supplicant *wpa_s = ctx;
3994 return wpas_p2p_in_progress(wpa_s);
3999 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4000 * @global: Pointer to global data from wpa_supplicant_init()
4001 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4002 * Returns: 0 on success, -1 on failure
4004 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4006 struct p2p_config p2p;
4009 if (wpa_s->conf->p2p_disabled)
4012 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4018 os_memset(&p2p, 0, sizeof(p2p));
4020 p2p.debug_print = wpas_p2p_debug_print;
4021 p2p.p2p_scan = wpas_p2p_scan;
4022 p2p.send_action = wpas_send_action;
4023 p2p.send_action_done = wpas_send_action_done;
4024 p2p.go_neg_completed = wpas_go_neg_completed;
4025 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4026 p2p.dev_found = wpas_dev_found;
4027 p2p.dev_lost = wpas_dev_lost;
4028 p2p.find_stopped = wpas_find_stopped;
4029 p2p.start_listen = wpas_start_listen;
4030 p2p.stop_listen = wpas_stop_listen;
4031 p2p.send_probe_resp = wpas_send_probe_resp;
4032 p2p.sd_request = wpas_sd_request;
4033 p2p.sd_response = wpas_sd_response;
4034 p2p.prov_disc_req = wpas_prov_disc_req;
4035 p2p.prov_disc_resp = wpas_prov_disc_resp;
4036 p2p.prov_disc_fail = wpas_prov_disc_fail;
4037 p2p.invitation_process = wpas_invitation_process;
4038 p2p.invitation_received = wpas_invitation_received;
4039 p2p.invitation_result = wpas_invitation_result;
4040 p2p.get_noa = wpas_get_noa;
4041 p2p.go_connected = wpas_go_connected;
4042 p2p.presence_resp = wpas_presence_resp;
4043 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4044 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4046 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4047 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4048 p2p.dev_name = wpa_s->conf->device_name;
4049 p2p.manufacturer = wpa_s->conf->manufacturer;
4050 p2p.model_name = wpa_s->conf->model_name;
4051 p2p.model_number = wpa_s->conf->model_number;
4052 p2p.serial_number = wpa_s->conf->serial_number;
4054 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4055 p2p.config_methods = wpa_s->wps->config_methods;
4058 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4059 wpa_printf(MSG_ERROR,
4060 "P2P: Failed to configure supported channel list");
4064 if (wpa_s->conf->p2p_listen_reg_class &&
4065 wpa_s->conf->p2p_listen_channel) {
4066 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4067 p2p.channel = wpa_s->conf->p2p_listen_channel;
4068 p2p.channel_forced = 1;
4071 * Pick one of the social channels randomly as the listen
4074 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4075 &p2p.channel) != 0) {
4076 wpa_printf(MSG_ERROR,
4077 "P2P: Failed to select random social channel as listen channel");
4080 p2p.channel_forced = 0;
4082 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4083 p2p.reg_class, p2p.channel);
4085 if (wpa_s->conf->p2p_oper_reg_class &&
4086 wpa_s->conf->p2p_oper_channel) {
4087 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4088 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4089 p2p.cfg_op_channel = 1;
4090 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4091 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4095 * Use random operation channel from 2.4 GHz band social
4096 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4097 * other preference is indicated.
4099 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4100 &p2p.op_channel) != 0) {
4101 wpa_printf(MSG_ERROR,
4102 "P2P: Failed to select random social channel as operation channel");
4105 p2p.cfg_op_channel = 0;
4106 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4107 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4110 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4111 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4112 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4115 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4116 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4117 p2p.country[2] = 0x04;
4119 os_memcpy(p2p.country, "XX\x04", 3);
4121 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4124 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4125 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4126 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4128 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4129 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4131 p2p.max_peers = 100;
4133 if (wpa_s->conf->p2p_ssid_postfix) {
4134 p2p.ssid_postfix_len =
4135 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4136 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4137 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4138 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4139 p2p.ssid_postfix_len);
4142 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4144 p2p.max_listen = wpa_s->max_remain_on_chan;
4146 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4147 wpa_s->conf->p2p_passphrase_len <= 63)
4148 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4150 p2p.passphrase_len = 8;
4152 global->p2p = p2p_init(&p2p);
4153 if (global->p2p == NULL)
4155 global->p2p_init_wpa_s = wpa_s;
4157 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4158 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4160 p2p_add_wps_vendor_extension(
4161 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4164 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4171 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4172 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4174 * This function deinitialize per-interface P2P data.
4176 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4178 if (wpa_s->driver && wpa_s->drv_priv)
4179 wpa_drv_probe_req_report(wpa_s, 0);
4181 if (wpa_s->go_params) {
4182 /* Clear any stored provisioning info */
4183 p2p_clear_provisioning_info(
4185 wpa_s->go_params->peer_device_addr);
4188 os_free(wpa_s->go_params);
4189 wpa_s->go_params = NULL;
4190 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4191 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4192 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4193 wpa_s->p2p_long_listen = 0;
4194 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4195 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4196 wpas_p2p_remove_pending_group_interface(wpa_s);
4197 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4198 wpas_p2p_listen_work_done(wpa_s);
4199 if (wpa_s->p2p_send_action_work) {
4200 os_free(wpa_s->p2p_send_action_work->ctx);
4201 radio_work_done(wpa_s->p2p_send_action_work);
4202 wpa_s->p2p_send_action_work = NULL;
4204 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4206 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4207 wpa_s->p2p_oob_dev_pw = NULL;
4209 os_free(wpa_s->p2p_group_common_freqs);
4210 wpa_s->p2p_group_common_freqs = NULL;
4211 wpa_s->p2p_group_common_freqs_num = 0;
4213 /* TODO: remove group interface from the driver if this wpa_s instance
4214 * is on top of a P2P group interface */
4219 * wpas_p2p_deinit_global - Deinitialize global P2P module
4220 * @global: Pointer to global data from wpa_supplicant_init()
4222 * This function deinitializes the global (per device) P2P module.
4224 static void wpas_p2p_deinit_global(struct wpa_global *global)
4226 struct wpa_supplicant *wpa_s, *tmp;
4228 wpa_s = global->ifaces;
4230 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4232 /* Remove remaining P2P group interfaces */
4233 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4234 wpa_s = wpa_s->next;
4236 tmp = global->ifaces;
4239 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4244 /* Disconnect from the P2P group and deinit the interface */
4245 wpas_p2p_disconnect(tmp);
4249 * Deinit GO data on any possibly remaining interface (if main
4250 * interface is used as GO).
4252 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4253 if (wpa_s->ap_iface)
4254 wpas_p2p_group_deinit(wpa_s);
4257 p2p_deinit(global->p2p);
4259 global->p2p_init_wpa_s = NULL;
4263 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4265 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4266 wpa_s->conf->p2p_no_group_iface)
4267 return 0; /* separate interface disabled per configuration */
4268 if (wpa_s->drv_flags &
4269 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4270 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4271 return 1; /* P2P group requires a new interface in every case
4273 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4274 return 0; /* driver does not support concurrent operations */
4275 if (wpa_s->global->ifaces->next)
4276 return 1; /* more that one interface already in use */
4277 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4278 return 1; /* this interface is already in use */
4283 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4284 const u8 *peer_addr,
4285 enum p2p_wps_method wps_method,
4286 int go_intent, const u8 *own_interface_addr,
4287 unsigned int force_freq, int persistent_group,
4288 struct wpa_ssid *ssid, unsigned int pref_freq)
4290 if (persistent_group && wpa_s->conf->persistent_reconnect)
4291 persistent_group = 2;
4294 * Increase GO config timeout if HT40 is used since it takes some time
4295 * to scan channels for coex purposes before the BSS can be started.
4297 p2p_set_config_timeout(wpa_s->global->p2p,
4298 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4300 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4301 go_intent, own_interface_addr, force_freq,
4302 persistent_group, ssid ? ssid->ssid : NULL,
4303 ssid ? ssid->ssid_len : 0,
4304 wpa_s->p2p_pd_before_go_neg, pref_freq,
4305 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4310 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4311 const u8 *peer_addr,
4312 enum p2p_wps_method wps_method,
4313 int go_intent, const u8 *own_interface_addr,
4314 unsigned int force_freq, int persistent_group,
4315 struct wpa_ssid *ssid, unsigned int pref_freq)
4317 if (persistent_group && wpa_s->conf->persistent_reconnect)
4318 persistent_group = 2;
4320 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4321 go_intent, own_interface_addr, force_freq,
4322 persistent_group, ssid ? ssid->ssid : NULL,
4323 ssid ? ssid->ssid_len : 0, pref_freq,
4324 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4329 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4331 wpa_s->p2p_join_scan_count++;
4332 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4333 wpa_s->p2p_join_scan_count);
4334 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4335 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4336 " for join operationg - stop join attempt",
4337 MAC2STR(wpa_s->pending_join_iface_addr));
4338 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4339 if (wpa_s->p2p_auto_pd) {
4340 wpa_s->p2p_auto_pd = 0;
4341 wpa_msg_global(wpa_s, MSG_INFO,
4342 P2P_EVENT_PROV_DISC_FAILURE
4343 " p2p_dev_addr=" MACSTR " status=N/A",
4344 MAC2STR(wpa_s->pending_join_dev_addr));
4347 wpa_msg_global(wpa_s->parent, MSG_INFO,
4348 P2P_EVENT_GROUP_FORMATION_FAILURE);
4353 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4356 unsigned int num, i;
4357 struct wpa_used_freq_data *freqs;
4359 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4360 /* Multiple channels are supported and not all are in use */
4364 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4365 sizeof(struct wpa_used_freq_data));
4369 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4370 wpa_s->num_multichan_concurrent);
4372 for (i = 0; i < num; i++) {
4373 if (freqs[i].freq == freq) {
4374 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4381 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4390 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4391 const u8 *peer_dev_addr)
4393 struct wpa_bss *bss;
4396 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4399 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4400 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4405 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4407 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4408 "%ld.%06ld (%supdated in last scan)",
4409 bss->last_update.sec, bss->last_update.usec,
4410 updated ? "": "not ");
4416 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4417 struct wpa_scan_results *scan_res)
4419 struct wpa_bss *bss = NULL;
4421 u8 iface_addr[ETH_ALEN];
4423 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4425 if (wpa_s->global->p2p_disabled)
4428 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4429 scan_res ? (int) scan_res->num : -1,
4430 wpa_s->p2p_auto_join ? "auto_" : "");
4433 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4435 if (wpa_s->p2p_auto_pd) {
4436 int join = wpas_p2p_peer_go(wpa_s,
4437 wpa_s->pending_join_dev_addr);
4439 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4440 wpa_s->auto_pd_scan_retry++;
4441 bss = wpa_bss_get_bssid_latest(
4442 wpa_s, wpa_s->pending_join_dev_addr);
4445 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4446 "the peer " MACSTR " at %d MHz",
4447 wpa_s->auto_pd_scan_retry,
4449 pending_join_dev_addr),
4451 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4459 wpa_s->p2p_auto_pd = 0;
4460 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4461 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4462 MAC2STR(wpa_s->pending_join_dev_addr), join);
4463 if (p2p_prov_disc_req(wpa_s->global->p2p,
4464 wpa_s->pending_join_dev_addr,
4465 wpa_s->pending_pd_config_methods, join,
4466 0, wpa_s->user_initiated_pd) < 0) {
4467 wpa_s->p2p_auto_pd = 0;
4468 wpa_msg_global(wpa_s, MSG_INFO,
4469 P2P_EVENT_PROV_DISC_FAILURE
4470 " p2p_dev_addr=" MACSTR " status=N/A",
4471 MAC2STR(wpa_s->pending_join_dev_addr));
4476 if (wpa_s->p2p_auto_join) {
4477 int join = wpas_p2p_peer_go(wpa_s,
4478 wpa_s->pending_join_dev_addr);
4480 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4481 "running a GO -> use GO Negotiation");
4482 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4483 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4484 wpa_s->p2p_persistent_group, 0, 0, 0,
4485 wpa_s->p2p_go_intent,
4486 wpa_s->p2p_connect_freq,
4487 wpa_s->p2p_persistent_id,
4488 wpa_s->p2p_pd_before_go_neg,
4494 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4495 "try to join the group", join ? "" :
4498 wpa_s->p2p_fallback_to_go_neg = 1;
4501 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4502 wpa_s->pending_join_iface_addr);
4504 p2p_get_interface_addr(wpa_s->global->p2p,
4505 wpa_s->pending_join_dev_addr,
4507 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4508 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4509 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4510 "address for join from " MACSTR " to " MACSTR
4511 " based on newly discovered P2P peer entry",
4512 MAC2STR(wpa_s->pending_join_iface_addr),
4513 MAC2STR(iface_addr));
4514 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4517 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4518 wpa_s->pending_join_iface_addr);
4521 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4522 "from P2P peer table: %d MHz", freq);
4524 if (wpa_s->p2p_join_ssid_len) {
4525 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4526 MACSTR " and SSID %s",
4527 MAC2STR(wpa_s->pending_join_iface_addr),
4528 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4529 wpa_s->p2p_join_ssid_len));
4530 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4531 wpa_s->p2p_join_ssid,
4532 wpa_s->p2p_join_ssid_len);
4535 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4536 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4537 bss = wpa_bss_get_bssid_latest(wpa_s,
4538 wpa_s->pending_join_iface_addr);
4542 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4543 "from BSS table: %d MHz (SSID %s)", freq,
4544 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4549 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4550 wpa_msg_global(wpa_s->parent, MSG_INFO,
4551 P2P_EVENT_GROUP_FORMATION_FAILURE
4552 "reason=FREQ_CONFLICT");
4556 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4557 "prior to joining an existing group (GO " MACSTR
4559 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4560 wpa_s->pending_pd_before_join = 1;
4562 switch (wpa_s->pending_join_wps_method) {
4563 case WPS_PIN_DISPLAY:
4564 method = WPS_CONFIG_KEYPAD;
4566 case WPS_PIN_KEYPAD:
4567 method = WPS_CONFIG_DISPLAY;
4570 method = WPS_CONFIG_PUSHBUTTON;
4577 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4578 wpa_s->pending_join_dev_addr) ==
4581 * We have already performed provision discovery for
4582 * joining the group. Proceed directly to join
4583 * operation without duplicated provision discovery. */
4584 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4585 "with " MACSTR " already done - proceed to "
4587 MAC2STR(wpa_s->pending_join_dev_addr));
4588 wpa_s->pending_pd_before_join = 0;
4592 if (p2p_prov_disc_req(wpa_s->global->p2p,
4593 wpa_s->pending_join_dev_addr, method, 1,
4594 freq, wpa_s->user_initiated_pd) < 0) {
4595 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4596 "Discovery Request before joining an "
4598 wpa_s->pending_pd_before_join = 0;
4604 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4605 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4606 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4607 wpas_p2p_check_join_scan_limit(wpa_s);
4611 /* Start join operation immediately */
4612 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4616 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4617 const u8 *ssid, size_t ssid_len)
4620 struct wpa_driver_scan_params params;
4621 struct wpabuf *wps_ie, *ies;
4623 int freqs[2] = { 0, 0 };
4625 os_memset(¶ms, 0, sizeof(params));
4627 /* P2P Wildcard SSID */
4628 params.num_ssids = 1;
4629 if (ssid && ssid_len) {
4630 params.ssids[0].ssid = ssid;
4631 params.ssids[0].ssid_len = ssid_len;
4632 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4633 wpa_s->p2p_join_ssid_len = ssid_len;
4635 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4636 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4637 wpa_s->p2p_join_ssid_len = 0;
4640 wpa_s->wps->dev.p2p = 1;
4641 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4642 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4644 if (wps_ie == NULL) {
4645 wpas_p2p_scan_res_join(wpa_s, NULL);
4649 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4650 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4652 wpabuf_free(wps_ie);
4653 wpas_p2p_scan_res_join(wpa_s, NULL);
4656 wpabuf_put_buf(ies, wps_ie);
4657 wpabuf_free(wps_ie);
4659 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4661 params.p2p_probe = 1;
4662 params.extra_ies = wpabuf_head(ies);
4663 params.extra_ies_len = wpabuf_len(ies);
4668 * If freq is not provided, check the operating freq of the GO
4669 * and use a single channel scan on if possible.
4671 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4672 wpa_s->pending_join_iface_addr);
4678 params.freqs = freqs;
4682 * Run a scan to update BSS table and start Provision Discovery once
4683 * the new scan results become available.
4685 ret = wpa_drv_scan(wpa_s, ¶ms);
4687 os_get_reltime(&wpa_s->scan_trigger_time);
4688 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4689 wpa_s->own_scan_requested = 1;
4695 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4697 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4698 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4699 wpas_p2p_check_join_scan_limit(wpa_s);
4704 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4706 struct wpa_supplicant *wpa_s = eloop_ctx;
4707 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4711 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4712 const u8 *dev_addr, enum p2p_wps_method wps_method,
4713 int auto_join, int op_freq,
4714 const u8 *ssid, size_t ssid_len)
4716 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4717 MACSTR " dev " MACSTR " op_freq=%d)%s",
4718 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4719 auto_join ? " (auto_join)" : "");
4720 if (ssid && ssid_len) {
4721 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4722 wpa_ssid_txt(ssid, ssid_len));
4725 wpa_s->p2p_auto_pd = 0;
4726 wpa_s->p2p_auto_join = !!auto_join;
4727 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4728 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4729 wpa_s->pending_join_wps_method = wps_method;
4731 /* Make sure we are not running find during connection establishment */
4732 wpas_p2p_stop_find(wpa_s);
4734 wpa_s->p2p_join_scan_count = 0;
4735 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4740 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4741 const u8 *ssid, size_t ssid_len)
4743 struct wpa_supplicant *group;
4744 struct p2p_go_neg_results res;
4745 struct wpa_bss *bss;
4747 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4750 if (group != wpa_s) {
4751 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4752 sizeof(group->p2p_pin));
4753 group->p2p_wps_method = wpa_s->p2p_wps_method;
4756 * Need to mark the current interface for p2p_group_formation
4757 * when a separate group interface is not used. This is needed
4758 * to allow p2p_cancel stop a pending p2p_connect-join.
4759 * wpas_p2p_init_group_interface() addresses this for the case
4760 * where a separate group interface is used.
4762 wpa_s->global->p2p_group_formation = wpa_s;
4765 group->p2p_in_provisioning = 1;
4766 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4768 os_memset(&res, 0, sizeof(res));
4769 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4770 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4772 res.wps_method = wpa_s->pending_join_wps_method;
4773 if (freq && ssid && ssid_len) {
4775 res.ssid_len = ssid_len;
4776 os_memcpy(res.ssid, ssid, ssid_len);
4778 bss = wpa_bss_get_bssid_latest(wpa_s,
4779 wpa_s->pending_join_iface_addr);
4781 res.freq = bss->freq;
4782 res.ssid_len = bss->ssid_len;
4783 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4784 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4786 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4790 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4791 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4793 wpa_drv_cancel_remain_on_channel(wpa_s);
4794 wpa_s->off_channel_freq = 0;
4795 wpa_s->roc_waiting_drv_freq = 0;
4797 wpas_start_wps_enrollee(group, &res);
4800 * Allow a longer timeout for join-a-running-group than normal 15
4801 * second group formation timeout since the GO may not have authorized
4802 * our connection yet.
4804 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4805 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4812 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4813 int *force_freq, int *pref_freq, int go)
4815 struct wpa_used_freq_data *freqs;
4816 int res, best_freq, num_unused;
4817 unsigned int freq_in_use = 0, num, i;
4819 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4820 sizeof(struct wpa_used_freq_data));
4824 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4825 wpa_s->num_multichan_concurrent);
4828 * It is possible that the total number of used frequencies is bigger
4829 * than the number of frequencies used for P2P, so get the system wide
4830 * number of unused frequencies.
4832 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4834 wpa_printf(MSG_DEBUG,
4835 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4836 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4841 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4843 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4845 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4846 "(%u MHz) is not supported for P2P uses",
4852 for (i = 0; i < num; i++) {
4853 if (freqs[i].freq == freq)
4857 if (num_unused <= 0 && !freq_in_use) {
4858 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4863 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4864 "requested channel (%u MHz)", freq);
4869 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4871 /* We have a candidate frequency to use */
4872 if (best_freq > 0) {
4873 if (*pref_freq == 0 && num_unused > 0) {
4874 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4876 *pref_freq = best_freq;
4878 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4880 *force_freq = best_freq;
4882 } else if (num_unused > 0) {
4883 wpa_printf(MSG_DEBUG,
4884 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4887 wpa_printf(MSG_DEBUG,
4888 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4902 * wpas_p2p_connect - Request P2P Group Formation to be started
4903 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4904 * @peer_addr: Address of the peer P2P Device
4905 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4906 * @persistent_group: Whether to create a persistent group
4907 * @auto_join: Whether to select join vs. GO Negotiation automatically
4908 * @join: Whether to join an existing group (as a client) instead of starting
4909 * Group Owner negotiation; @peer_addr is BSSID in that case
4910 * @auth: Whether to only authorize the connection instead of doing that and
4911 * initiating Group Owner negotiation
4912 * @go_intent: GO Intent or -1 to use default
4913 * @freq: Frequency for the group or 0 for auto-selection
4914 * @persistent_id: Persistent group credentials to use for forcing GO
4915 * parameters or -1 to generate new values (SSID/passphrase)
4916 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4917 * interoperability workaround when initiating group formation
4918 * @ht40: Start GO with 40 MHz channel width
4919 * @vht: Start GO with VHT support
4920 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4921 * failure, -2 on failure due to channel not currently available,
4922 * -3 if forced channel is not supported
4924 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4925 const char *pin, enum p2p_wps_method wps_method,
4926 int persistent_group, int auto_join, int join, int auth,
4927 int go_intent, int freq, int persistent_id, int pd,
4930 int force_freq = 0, pref_freq = 0;
4932 enum wpa_driver_if_type iftype;
4934 struct wpa_ssid *ssid = NULL;
4936 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4939 if (persistent_id >= 0) {
4940 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4941 if (ssid == NULL || ssid->disabled != 2 ||
4942 ssid->mode != WPAS_MODE_P2P_GO)
4946 os_free(wpa_s->global->add_psk);
4947 wpa_s->global->add_psk = NULL;
4949 wpa_s->global->p2p_fail_on_wps_complete = 0;
4952 go_intent = wpa_s->conf->p2p_go_intent;
4955 wpa_s->p2p_long_listen = 0;
4957 wpa_s->p2p_wps_method = wps_method;
4958 wpa_s->p2p_persistent_group = !!persistent_group;
4959 wpa_s->p2p_persistent_id = persistent_id;
4960 wpa_s->p2p_go_intent = go_intent;
4961 wpa_s->p2p_connect_freq = freq;
4962 wpa_s->p2p_fallback_to_go_neg = 0;
4963 wpa_s->p2p_pd_before_go_neg = !!pd;
4964 wpa_s->p2p_go_ht40 = !!ht40;
4965 wpa_s->p2p_go_vht = !!vht;
4968 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4969 else if (wps_method == WPS_PIN_DISPLAY) {
4970 ret = wps_generate_pin();
4971 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4973 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4976 wpa_s->p2p_pin[0] = '\0';
4978 if (join || auto_join) {
4979 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
4981 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4982 "connect a running group from " MACSTR,
4983 MAC2STR(peer_addr));
4984 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4987 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
4988 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4990 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4991 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4995 os_get_reltime(&wpa_s->p2p_auto_started);
4996 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4998 wpa_s->p2p_auto_started.sec,
4999 wpa_s->p2p_auto_started.usec);
5001 wpa_s->user_initiated_pd = 1;
5002 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5003 auto_join, freq, NULL, 0) < 0)
5008 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5012 wpas_p2p_set_own_freq_preference(wpa_s,
5013 force_freq ? force_freq : pref_freq);
5015 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5017 if (wpa_s->create_p2p_iface) {
5018 /* Prepare to add a new interface for the group */
5019 iftype = WPA_IF_P2P_GROUP;
5020 if (go_intent == 15)
5021 iftype = WPA_IF_P2P_GO;
5022 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5023 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5024 "interface for the group");
5028 if_addr = wpa_s->pending_interface_addr;
5030 if_addr = wpa_s->own_addr;
5033 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5035 force_freq, persistent_group, ssid,
5041 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5042 go_intent, if_addr, force_freq,
5043 persistent_group, ssid, pref_freq) < 0) {
5044 if (wpa_s->create_p2p_iface)
5045 wpas_p2p_remove_pending_group_interface(wpa_s);
5053 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5054 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5055 * @freq: Frequency of the channel in MHz
5056 * @duration: Duration of the stay on the channel in milliseconds
5058 * This callback is called when the driver indicates that it has started the
5059 * requested remain-on-channel duration.
5061 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5062 unsigned int freq, unsigned int duration)
5064 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5066 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5067 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5068 wpa_s->pending_listen_duration);
5069 wpa_s->pending_listen_freq = 0;
5071 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5072 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5078 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
5079 unsigned int timeout)
5081 /* Limit maximum Listen state time based on driver limitation. */
5082 if (timeout > wpa_s->max_remain_on_chan)
5083 timeout = wpa_s->max_remain_on_chan;
5085 return p2p_listen(wpa_s->global->p2p, timeout);
5090 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5091 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5092 * @freq: Frequency of the channel in MHz
5094 * This callback is called when the driver indicates that a remain-on-channel
5095 * operation has been completed, i.e., the duration on the requested channel
5098 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5101 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5102 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5103 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5104 wpas_p2p_listen_work_done(wpa_s);
5105 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5107 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5108 return; /* P2P module started a new operation */
5109 if (offchannel_pending_action_tx(wpa_s))
5111 if (wpa_s->p2p_long_listen > 0)
5112 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5113 if (wpa_s->p2p_long_listen > 0) {
5114 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5115 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5118 * When listen duration is over, stop listen & update p2p_state
5121 p2p_stop_listen(wpa_s->global->p2p);
5127 * wpas_p2p_group_remove - Remove a P2P group
5128 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5129 * @ifname: Network interface name of the group interface or "*" to remove all
5131 * Returns: 0 on success, -1 on failure
5133 * This function is used to remove a P2P group. This can be used to disconnect
5134 * from a group in which the local end is a P2P Client or to end a P2P Group in
5135 * case the local end is the Group Owner. If a virtual network interface was
5136 * created for this group, that interface will be removed. Otherwise, only the
5137 * configured P2P group network will be removed from the interface.
5139 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5141 struct wpa_global *global = wpa_s->global;
5142 struct wpa_supplicant *calling_wpa_s = wpa_s;
5144 if (os_strcmp(ifname, "*") == 0) {
5145 struct wpa_supplicant *prev;
5146 wpa_s = global->ifaces;
5149 wpa_s = wpa_s->next;
5150 if (prev->p2p_group_interface !=
5151 NOT_P2P_GROUP_INTERFACE ||
5152 (prev->current_ssid &&
5153 prev->current_ssid->p2p_group))
5154 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5159 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5160 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5164 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5168 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5173 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5175 if (wpa_s->best_24_freq > 0 &&
5176 p2p_supported_freq_go(wpa_s->global->p2p,
5177 wpa_s->best_24_freq)) {
5178 freq = wpa_s->best_24_freq;
5179 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5180 "channel: %d MHz", freq);
5182 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5184 freq = 2412 + (r % 3) * 25;
5185 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5186 "channel: %d MHz", freq);
5191 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5193 if (wpa_s->best_5_freq > 0 &&
5194 p2p_supported_freq_go(wpa_s->global->p2p,
5195 wpa_s->best_5_freq)) {
5196 freq = wpa_s->best_5_freq;
5197 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5198 "channel: %d MHz", freq);
5200 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5202 freq = 5180 + (r % 4) * 20;
5203 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5204 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5205 "5 GHz channel for P2P group");
5208 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5209 "channel: %d MHz", freq);
5213 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5214 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5215 "(%u MHz) is not supported for P2P uses",
5224 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5225 struct p2p_go_neg_results *params,
5226 const struct p2p_channels *channels)
5230 /* first try some random selection of the social channels */
5231 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5234 for (i = 0; i < 3; i++) {
5235 params->freq = 2412 + ((r + i) % 3) * 25;
5236 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5237 freq_included(channels, params->freq) &&
5238 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5242 /* try all channels in reg. class 81 */
5243 for (i = 0; i < 11; i++) {
5244 params->freq = 2412 + i * 5;
5245 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5246 freq_included(channels, params->freq) &&
5247 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5251 /* try social channel class 180 channel 2 */
5252 params->freq = 58320 + 1 * 2160;
5253 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5254 freq_included(channels, params->freq) &&
5255 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5258 /* try all channels in reg. class 180 */
5259 for (i = 0; i < 4; i++) {
5260 params->freq = 58320 + i * 2160;
5261 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5262 freq_included(channels, params->freq) &&
5263 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5267 wpa_printf(MSG_DEBUG, "P2P: No 2.4 and 60 GHz channel allowed");
5270 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5276 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5277 struct p2p_go_neg_results *params,
5278 int freq, int ht40, int vht,
5279 const struct p2p_channels *channels)
5281 struct wpa_used_freq_data *freqs;
5282 unsigned int pref_freq, cand_freq;
5283 unsigned int num, i;
5285 os_memset(params, 0, sizeof(*params));
5286 params->role_go = 1;
5287 params->ht40 = ht40;
5290 if (!freq_included(channels, freq)) {
5291 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5295 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5296 "frequency %d MHz", freq);
5297 params->freq = freq;
5298 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5299 wpa_s->conf->p2p_oper_channel >= 1 &&
5300 wpa_s->conf->p2p_oper_channel <= 11 &&
5301 freq_included(channels,
5302 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5303 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5304 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5305 "frequency %d MHz", params->freq);
5306 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5307 wpa_s->conf->p2p_oper_reg_class == 116 ||
5308 wpa_s->conf->p2p_oper_reg_class == 117 ||
5309 wpa_s->conf->p2p_oper_reg_class == 124 ||
5310 wpa_s->conf->p2p_oper_reg_class == 126 ||
5311 wpa_s->conf->p2p_oper_reg_class == 127) &&
5312 freq_included(channels,
5313 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
5314 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5315 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5316 "frequency %d MHz", params->freq);
5317 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5318 wpa_s->best_overall_freq > 0 &&
5319 p2p_supported_freq_go(wpa_s->global->p2p,
5320 wpa_s->best_overall_freq) &&
5321 freq_included(channels, wpa_s->best_overall_freq)) {
5322 params->freq = wpa_s->best_overall_freq;
5323 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5324 "channel %d MHz", params->freq);
5325 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5326 wpa_s->best_24_freq > 0 &&
5327 p2p_supported_freq_go(wpa_s->global->p2p,
5328 wpa_s->best_24_freq) &&
5329 freq_included(channels, wpa_s->best_24_freq)) {
5330 params->freq = wpa_s->best_24_freq;
5331 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5332 "channel %d MHz", params->freq);
5333 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5334 wpa_s->best_5_freq > 0 &&
5335 p2p_supported_freq_go(wpa_s->global->p2p,
5336 wpa_s->best_5_freq) &&
5337 freq_included(channels, wpa_s->best_5_freq)) {
5338 params->freq = wpa_s->best_5_freq;
5339 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5340 "channel %d MHz", params->freq);
5341 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5343 params->freq = pref_freq;
5344 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5345 "channels", params->freq);
5347 /* no preference, select some channel */
5348 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
5352 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5353 sizeof(struct wpa_used_freq_data));
5357 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5358 wpa_s->num_multichan_concurrent);
5360 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5362 /* First try the best used frequency if possible */
5363 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5364 params->freq = cand_freq;
5366 /* Try any of the used frequencies */
5367 for (i = 0; i < num; i++) {
5368 if (freq_included(channels, freqs[i].freq)) {
5369 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5371 params->freq = freqs[i].freq;
5377 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5378 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
5382 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5386 for (i = 0; i < num; i++) {
5387 if (freqs[i].freq == freq)
5392 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5394 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5398 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5408 static struct wpa_supplicant *
5409 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5412 struct wpa_supplicant *group_wpa_s;
5414 if (!wpas_p2p_create_iface(wpa_s)) {
5415 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5417 wpa_s->p2p_first_connection_timeout = 0;
5421 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5422 WPA_IF_P2P_CLIENT) < 0) {
5423 wpa_msg_global(wpa_s, MSG_ERROR,
5424 "P2P: Failed to add group interface");
5427 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5428 if (group_wpa_s == NULL) {
5429 wpa_msg_global(wpa_s, MSG_ERROR,
5430 "P2P: Failed to initialize group interface");
5431 wpas_p2p_remove_pending_group_interface(wpa_s);
5435 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5436 group_wpa_s->ifname);
5437 group_wpa_s->p2p_first_connection_timeout = 0;
5443 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5444 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5445 * @persistent_group: Whether to create a persistent group
5446 * @freq: Frequency for the group or 0 to indicate no hardcoding
5447 * @ht40: Start GO with 40 MHz channel width
5448 * @vht: Start GO with VHT support
5449 * Returns: 0 on success, -1 on failure
5451 * This function creates a new P2P group with the local end as the Group Owner,
5452 * i.e., without using Group Owner Negotiation.
5454 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5455 int freq, int ht40, int vht)
5457 struct p2p_go_neg_results params;
5459 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5462 os_free(wpa_s->global->add_psk);
5463 wpa_s->global->add_psk = NULL;
5465 /* Make sure we are not running find during connection establishment */
5466 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5467 wpas_p2p_stop_find_oper(wpa_s);
5469 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5473 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5476 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5477 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
5478 "(%u MHz) is not supported for P2P uses",
5482 p2p_go_params(wpa_s->global->p2p, ¶ms);
5483 params.persistent_group = persistent_group;
5485 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5488 wpas_start_wps_go(wpa_s, ¶ms, 0);
5494 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5495 struct wpa_ssid *params, int addr_allocated,
5498 struct wpa_ssid *ssid;
5500 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5503 wpa_s->p2p_last_4way_hs_fail = NULL;
5505 wpa_supplicant_ap_deinit(wpa_s);
5507 ssid = wpa_config_add_network(wpa_s->conf);
5510 wpa_config_set_network_defaults(ssid);
5511 ssid->temporary = 1;
5512 ssid->proto = WPA_PROTO_RSN;
5513 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5514 ssid->group_cipher = WPA_CIPHER_CCMP;
5515 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5516 ssid->ssid = os_malloc(params->ssid_len);
5517 if (ssid->ssid == NULL) {
5518 wpa_config_remove_network(wpa_s->conf, ssid->id);
5521 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5522 ssid->ssid_len = params->ssid_len;
5523 ssid->p2p_group = 1;
5524 ssid->export_keys = 1;
5525 if (params->psk_set) {
5526 os_memcpy(ssid->psk, params->psk, 32);
5529 if (params->passphrase)
5530 ssid->passphrase = os_strdup(params->passphrase);
5532 wpa_s->show_group_started = 1;
5533 wpa_s->p2p_in_invitation = 1;
5534 wpa_s->p2p_invite_go_freq = freq;
5536 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5538 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5539 wpas_p2p_group_formation_timeout,
5540 wpa_s->parent, NULL);
5541 wpa_supplicant_select_network(wpa_s, ssid);
5547 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5548 struct wpa_ssid *ssid, int addr_allocated,
5549 int force_freq, int neg_freq, int ht40,
5550 int vht, const struct p2p_channels *channels,
5551 int connection_timeout)
5553 struct p2p_go_neg_results params;
5556 if (ssid->disabled != 2 || ssid->ssid == NULL)
5559 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5560 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5561 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5566 os_free(wpa_s->global->add_psk);
5567 wpa_s->global->add_psk = NULL;
5569 /* Make sure we are not running find during connection establishment */
5570 wpas_p2p_stop_find_oper(wpa_s);
5572 wpa_s->p2p_fallback_to_go_neg = 0;
5574 if (ssid->mode == WPAS_MODE_P2P_GO) {
5575 if (force_freq > 0) {
5576 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5580 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5582 (freq > 0 && !freq_included(channels, freq)))
5588 (freq > 0 && !freq_included(channels, freq)))
5592 if (ssid->mode == WPAS_MODE_INFRA)
5593 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5595 if (ssid->mode != WPAS_MODE_P2P_GO)
5598 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5602 params.psk_set = ssid->psk_set;
5604 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5605 if (ssid->passphrase) {
5606 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5607 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5608 "persistent group");
5611 os_strlcpy(params.passphrase, ssid->passphrase,
5612 sizeof(params.passphrase));
5614 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5615 params.ssid_len = ssid->ssid_len;
5616 params.persistent_group = 1;
5618 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5622 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5624 wpa_s->p2p_first_connection_timeout = connection_timeout;
5625 wpas_start_wps_go(wpa_s, ¶ms, 0);
5631 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5632 struct wpabuf *proberesp_ies)
5634 struct wpa_supplicant *wpa_s = ctx;
5635 if (wpa_s->ap_iface) {
5636 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5637 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5638 wpabuf_free(beacon_ies);
5639 wpabuf_free(proberesp_ies);
5643 wpabuf_free(hapd->p2p_beacon_ie);
5644 hapd->p2p_beacon_ie = beacon_ies;
5646 wpabuf_free(hapd->p2p_probe_resp_ie);
5647 hapd->p2p_probe_resp_ie = proberesp_ies;
5649 wpabuf_free(beacon_ies);
5650 wpabuf_free(proberesp_ies);
5652 wpa_supplicant_ap_update_beacon(wpa_s);
5656 static void wpas_p2p_idle_update(void *ctx, int idle)
5658 struct wpa_supplicant *wpa_s = ctx;
5659 if (!wpa_s->ap_iface)
5661 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5663 if (wpa_s->global->p2p_fail_on_wps_complete &&
5664 wpa_s->p2p_in_provisioning) {
5665 wpas_p2p_grpform_fail_after_wps(wpa_s);
5668 wpas_p2p_set_group_idle_timeout(wpa_s);
5670 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5674 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5675 struct wpa_ssid *ssid)
5677 struct p2p_group *group;
5678 struct p2p_group_config *cfg;
5680 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5683 cfg = os_zalloc(sizeof(*cfg));
5687 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5688 cfg->persistent_group = 2;
5689 else if (ssid->p2p_persistent_group)
5690 cfg->persistent_group = 1;
5691 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5692 if (wpa_s->max_stations &&
5693 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5694 cfg->max_clients = wpa_s->max_stations;
5696 cfg->max_clients = wpa_s->conf->max_num_sta;
5697 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5698 cfg->ssid_len = ssid->ssid_len;
5699 cfg->freq = ssid->frequency;
5700 cfg->cb_ctx = wpa_s;
5701 cfg->ie_update = wpas_p2p_ie_update;
5702 cfg->idle_update = wpas_p2p_idle_update;
5704 group = p2p_group_init(wpa_s->global->p2p, cfg);
5707 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5708 p2p_group_notif_formation_done(group);
5709 wpa_s->p2p_group = group;
5714 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5717 struct wpa_ssid *ssid = wpa_s->current_ssid;
5719 if (!wpa_s->p2p_in_provisioning) {
5720 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5721 "provisioning not in progress");
5725 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5726 u8 go_dev_addr[ETH_ALEN];
5727 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5728 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5730 /* Clear any stored provisioning info */
5731 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5734 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5736 wpa_s->p2p_go_group_formation_completed = 1;
5737 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5739 * Use a separate timeout for initial data connection to
5740 * complete to allow the group to be removed automatically if
5741 * something goes wrong in this step before the P2P group idle
5742 * timeout mechanism is taken into use.
5744 wpa_dbg(wpa_s, MSG_DEBUG,
5745 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5746 P2P_MAX_INITIAL_CONN_WAIT);
5747 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5748 wpas_p2p_group_formation_timeout,
5749 wpa_s->parent, NULL);
5752 * Use a separate timeout for initial data connection to
5753 * complete to allow the group to be removed automatically if
5754 * the client does not complete data connection successfully.
5756 wpa_dbg(wpa_s, MSG_DEBUG,
5757 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5758 P2P_MAX_INITIAL_CONN_WAIT_GO);
5759 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5760 wpas_p2p_group_formation_timeout,
5761 wpa_s->parent, NULL);
5763 * Complete group formation on first successful data connection
5765 wpa_s->p2p_go_group_formation_completed = 0;
5767 if (wpa_s->global->p2p)
5768 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5769 wpas_group_formation_completed(wpa_s, 1);
5773 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5774 struct wps_event_fail *fail)
5776 if (!wpa_s->p2p_in_provisioning) {
5777 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5778 "provisioning not in progress");
5782 if (wpa_s->go_params) {
5783 p2p_clear_provisioning_info(
5785 wpa_s->go_params->peer_device_addr);
5788 wpas_notify_p2p_wps_failed(wpa_s, fail);
5790 if (wpa_s == wpa_s->global->p2p_group_formation) {
5792 * Allow some time for the failed WPS negotiation exchange to
5793 * complete, but remove the group since group formation cannot
5794 * succeed after provisioning failure.
5796 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5797 wpa_s->global->p2p_fail_on_wps_complete = 1;
5798 eloop_deplete_timeout(0, 50000,
5799 wpas_p2p_group_formation_timeout,
5800 wpa_s->parent, NULL);
5805 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5807 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5808 !wpa_s->p2p_in_provisioning)
5811 wpas_p2p_grpform_fail_after_wps(wpa_s);
5817 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5818 const char *config_method,
5819 enum wpas_p2p_prov_disc_use use)
5823 wpa_s->p2p_fallback_to_go_neg = 0;
5824 wpa_s->pending_pd_use = NORMAL_PD;
5825 if (os_strncmp(config_method, "display", 7) == 0)
5826 config_methods = WPS_CONFIG_DISPLAY;
5827 else if (os_strncmp(config_method, "keypad", 6) == 0)
5828 config_methods = WPS_CONFIG_KEYPAD;
5829 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5830 os_strncmp(config_method, "pushbutton", 10) == 0)
5831 config_methods = WPS_CONFIG_PUSHBUTTON;
5833 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5837 if (use == WPAS_P2P_PD_AUTO) {
5838 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5839 wpa_s->pending_pd_config_methods = config_methods;
5840 wpa_s->p2p_auto_pd = 1;
5841 wpa_s->p2p_auto_join = 0;
5842 wpa_s->pending_pd_before_join = 0;
5843 wpa_s->auto_pd_scan_retry = 0;
5844 wpas_p2p_stop_find(wpa_s);
5845 wpa_s->p2p_join_scan_count = 0;
5846 os_get_reltime(&wpa_s->p2p_auto_started);
5847 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5848 wpa_s->p2p_auto_started.sec,
5849 wpa_s->p2p_auto_started.usec);
5850 wpas_p2p_join_scan(wpa_s, NULL);
5854 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
5857 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
5858 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5863 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5866 return p2p_scan_result_text(ies, ies_len, buf, end);
5870 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5872 if (!offchannel_pending_action_tx(wpa_s))
5875 wpas_p2p_action_tx_clear(wpa_s);
5877 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5878 "operation request");
5879 offchannel_clear_pending_action_tx(wpa_s);
5883 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
5884 enum p2p_discovery_type type,
5885 unsigned int num_req_dev_types, const u8 *req_dev_types,
5886 const u8 *dev_id, unsigned int search_delay)
5888 wpas_p2p_clear_pending_action_tx(wpa_s);
5889 wpa_s->p2p_long_listen = 0;
5891 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
5892 wpa_s->p2p_in_provisioning)
5895 wpa_supplicant_cancel_sched_scan(wpa_s);
5897 return p2p_find(wpa_s->global->p2p, timeout, type,
5898 num_req_dev_types, req_dev_types, dev_id,
5903 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
5905 wpas_p2p_clear_pending_action_tx(wpa_s);
5906 wpa_s->p2p_long_listen = 0;
5907 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5908 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5910 if (wpa_s->global->p2p)
5911 p2p_stop_find(wpa_s->global->p2p);
5915 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5917 wpas_p2p_stop_find_oper(wpa_s);
5918 wpas_p2p_remove_pending_group_interface(wpa_s);
5922 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5924 struct wpa_supplicant *wpa_s = eloop_ctx;
5925 wpa_s->p2p_long_listen = 0;
5929 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5933 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5936 wpa_supplicant_cancel_sched_scan(wpa_s);
5937 wpas_p2p_clear_pending_action_tx(wpa_s);
5941 * This is a request for unlimited Listen state. However, at
5942 * least for now, this is mapped to a Listen state for one
5947 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5948 wpa_s->p2p_long_listen = 0;
5951 * Stop previous find/listen operation to avoid trying to request a new
5952 * remain-on-channel operation while the driver is still running the
5955 if (wpa_s->global->p2p)
5956 p2p_stop_find(wpa_s->global->p2p);
5958 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5959 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
5960 wpa_s->p2p_long_listen = timeout * 1000;
5961 eloop_register_timeout(timeout, 0,
5962 wpas_p2p_long_listen_timeout,
5970 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
5971 u8 *buf, size_t len, int p2p_group)
5973 struct wpabuf *p2p_ie;
5976 if (wpa_s->global->p2p_disabled)
5978 if (wpa_s->conf->p2p_disabled)
5980 if (wpa_s->global->p2p == NULL)
5985 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5986 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5988 wpabuf_free(p2p_ie);
5994 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
5995 const u8 *dst, const u8 *bssid,
5996 const u8 *ie, size_t ie_len, int ssi_signal)
5998 if (wpa_s->global->p2p_disabled)
6000 if (wpa_s->global->p2p == NULL)
6003 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6005 case P2P_PREQ_NOT_P2P:
6006 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6009 case P2P_PREQ_MALFORMED:
6010 case P2P_PREQ_NOT_LISTEN:
6011 case P2P_PREQ_NOT_PROCESSED:
6012 default: /* make gcc happy */
6014 case P2P_PREQ_PROCESSED:
6020 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6021 const u8 *sa, const u8 *bssid,
6022 u8 category, const u8 *data, size_t len, int freq)
6024 if (wpa_s->global->p2p_disabled)
6026 if (wpa_s->global->p2p == NULL)
6029 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6034 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6036 if (wpa_s->global->p2p_disabled)
6038 if (wpa_s->global->p2p == NULL)
6041 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6045 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6047 p2p_group_deinit(wpa_s->p2p_group);
6048 wpa_s->p2p_group = NULL;
6050 wpa_s->ap_configured_cb = NULL;
6051 wpa_s->ap_configured_cb_ctx = NULL;
6052 wpa_s->ap_configured_cb_data = NULL;
6053 wpa_s->connect_without_scan = NULL;
6057 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6059 wpa_s->p2p_long_listen = 0;
6061 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6064 return p2p_reject(wpa_s->global->p2p, addr);
6068 /* Invite to reinvoke a persistent group */
6069 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6070 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6071 int ht40, int vht, int pref_freq)
6073 enum p2p_invite_role role;
6077 int no_pref_freq_given = pref_freq == 0;
6079 wpa_s->global->p2p_invite_group = NULL;
6081 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6083 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6085 wpa_s->p2p_persistent_go_freq = freq;
6086 wpa_s->p2p_go_ht40 = !!ht40;
6087 if (ssid->mode == WPAS_MODE_P2P_GO) {
6088 role = P2P_INVITE_ROLE_GO;
6089 if (peer_addr == NULL) {
6090 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6091 "address in invitation command");
6094 if (wpas_p2p_create_iface(wpa_s)) {
6095 if (wpas_p2p_add_group_interface(wpa_s,
6096 WPA_IF_P2P_GO) < 0) {
6097 wpa_printf(MSG_ERROR, "P2P: Failed to "
6098 "allocate a new interface for the "
6102 bssid = wpa_s->pending_interface_addr;
6104 bssid = wpa_s->own_addr;
6106 role = P2P_INVITE_ROLE_CLIENT;
6107 peer_addr = ssid->bssid;
6109 wpa_s->pending_invite_ssid_id = ssid->id;
6111 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6112 role == P2P_INVITE_ROLE_GO);
6116 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6119 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6120 no_pref_freq_given && pref_freq > 0 &&
6121 wpa_s->num_multichan_concurrent > 1 &&
6122 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6123 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6128 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6129 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6134 /* Invite to join an active group */
6135 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6136 const u8 *peer_addr, const u8 *go_dev_addr)
6138 struct wpa_global *global = wpa_s->global;
6139 enum p2p_invite_role role;
6141 struct wpa_ssid *ssid;
6143 int freq = 0, force_freq = 0, pref_freq = 0;
6146 wpa_s->p2p_persistent_go_freq = 0;
6147 wpa_s->p2p_go_ht40 = 0;
6148 wpa_s->p2p_go_vht = 0;
6150 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6151 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6154 if (wpa_s == NULL) {
6155 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6159 ssid = wpa_s->current_ssid;
6161 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6166 wpa_s->global->p2p_invite_group = wpa_s;
6167 persistent = ssid->p2p_persistent_group &&
6168 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6169 ssid->ssid, ssid->ssid_len);
6171 if (ssid->mode == WPAS_MODE_P2P_GO) {
6172 role = P2P_INVITE_ROLE_ACTIVE_GO;
6173 bssid = wpa_s->own_addr;
6174 if (go_dev_addr == NULL)
6175 go_dev_addr = wpa_s->global->p2p_dev_addr;
6176 freq = ssid->frequency;
6178 role = P2P_INVITE_ROLE_CLIENT;
6179 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6180 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6181 "invite to current group");
6184 bssid = wpa_s->bssid;
6185 if (go_dev_addr == NULL &&
6186 !is_zero_ether_addr(wpa_s->go_dev_addr))
6187 go_dev_addr = wpa_s->go_dev_addr;
6188 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6189 (int) wpa_s->assoc_freq;
6191 wpa_s->parent->pending_invite_ssid_id = -1;
6193 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6196 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6197 role == P2P_INVITE_ROLE_ACTIVE_GO);
6200 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6202 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6203 ssid->ssid, ssid->ssid_len, force_freq,
6204 go_dev_addr, persistent, pref_freq, -1);
6208 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6210 struct wpa_ssid *ssid = wpa_s->current_ssid;
6211 u8 go_dev_addr[ETH_ALEN];
6212 int network_id = -1;
6218 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6219 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6220 wpa_s->parent, NULL);
6223 if (!wpa_s->show_group_started || !ssid)
6226 wpa_s->show_group_started = 0;
6228 os_memset(go_dev_addr, 0, ETH_ALEN);
6229 if (ssid->bssid_set)
6230 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6231 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6233 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6235 if (wpa_s->global->p2p_group_formation == wpa_s)
6236 wpa_s->global->p2p_group_formation = NULL;
6238 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6239 (int) wpa_s->assoc_freq;
6242 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6243 os_snprintf(ip_addr, sizeof(ip_addr), " ip_addr=%u.%u.%u.%u "
6244 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6245 ip[0], ip[1], ip[2], ip[3],
6246 ip[4], ip[5], ip[6], ip[7],
6247 ip[8], ip[9], ip[10], ip[11]);
6250 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6251 ssid->passphrase == NULL && ssid->psk_set ?
6253 ssid->passphrase, go_dev_addr, persistent,
6257 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6260 network_id = ssid->id;
6261 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6265 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6266 u32 interval1, u32 duration2, u32 interval2)
6270 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6273 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6274 wpa_s->current_ssid == NULL ||
6275 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6278 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6279 wpa_s->own_addr, wpa_s->assoc_freq,
6280 duration1, interval1, duration2, interval2);
6282 wpa_s->waiting_presence_resp = 1;
6288 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6289 unsigned int interval)
6291 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6294 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6298 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6300 if (wpa_s->current_ssid == NULL) {
6302 * current_ssid can be cleared when P2P client interface gets
6303 * disconnected, so assume this interface was used as P2P
6308 return wpa_s->current_ssid->p2p_group &&
6309 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6313 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6315 struct wpa_supplicant *wpa_s = eloop_ctx;
6317 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6318 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6323 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6325 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6329 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6333 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6334 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6336 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6339 timeout = wpa_s->conf->p2p_group_idle;
6340 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6341 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6342 timeout = P2P_MAX_CLIENT_IDLE;
6348 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6349 timeout = 0; /* special client mode no-timeout */
6354 if (wpa_s->p2p_in_provisioning) {
6356 * Use the normal group formation timeout during the
6357 * provisioning phase to avoid terminating this process too
6358 * early due to group idle timeout.
6360 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6361 "during provisioning");
6365 if (wpa_s->show_group_started) {
6367 * Use the normal group formation timeout between the end of
6368 * the provisioning phase and completion of 4-way handshake to
6369 * avoid terminating this process too early due to group idle
6372 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6373 "while waiting for initial 4-way handshake to "
6378 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6380 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6385 /* Returns 1 if the interface was removed */
6386 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6387 u16 reason_code, const u8 *ie, size_t ie_len,
6388 int locally_generated)
6390 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6393 if (!locally_generated)
6394 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6397 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6398 wpa_s->current_ssid &&
6399 wpa_s->current_ssid->p2p_group &&
6400 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6401 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6402 "session is ending");
6403 if (wpas_p2p_group_delete(wpa_s,
6404 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6413 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6414 u16 reason_code, const u8 *ie, size_t ie_len,
6415 int locally_generated)
6417 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6420 if (!locally_generated)
6421 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6426 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6428 struct p2p_data *p2p = wpa_s->global->p2p;
6433 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6436 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6437 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6439 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6440 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6443 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6444 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6446 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6447 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6449 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6450 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6451 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6452 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6453 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6456 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6457 p2p_set_sec_dev_types(p2p,
6458 (void *) wpa_s->conf->sec_device_type,
6459 wpa_s->conf->num_sec_device_types);
6461 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6463 p2p_remove_wps_vendor_extensions(p2p);
6464 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6465 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6467 p2p_add_wps_vendor_extension(
6468 p2p, wpa_s->conf->wps_vendor_ext[i]);
6472 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6473 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6475 country[0] = wpa_s->conf->country[0];
6476 country[1] = wpa_s->conf->country[1];
6478 p2p_set_country(p2p, country);
6481 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6482 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6483 wpa_s->conf->p2p_ssid_postfix ?
6484 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6488 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6489 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6491 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6492 u8 reg_class, channel;
6497 if (wpa_s->conf->p2p_listen_reg_class &&
6498 wpa_s->conf->p2p_listen_channel) {
6499 reg_class = wpa_s->conf->p2p_listen_reg_class;
6500 channel = wpa_s->conf->p2p_listen_channel;
6505 * Pick one of the social channels randomly as the
6508 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6511 channel = 1 + (r % 3) * 5;
6514 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6517 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6520 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6521 u8 op_reg_class, op_channel, cfg_op_channel;
6524 if (wpa_s->conf->p2p_oper_reg_class &&
6525 wpa_s->conf->p2p_oper_channel) {
6526 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6527 op_channel = wpa_s->conf->p2p_oper_channel;
6532 * Use random operation channel from (1, 6, 11)
6533 *if no other preference is indicated.
6535 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6538 op_channel = 1 + (r % 3) * 5;
6541 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6544 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6548 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6549 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6550 wpa_s->conf->p2p_pref_chan) < 0) {
6551 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6555 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6556 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6561 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6562 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6566 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6569 if (!wpa_s->ap_iface)
6571 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6576 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6578 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6581 wpa_s->global->cross_connection = enabled;
6582 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6585 struct wpa_supplicant *iface;
6587 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6589 if (iface->cross_connect_enabled == 0)
6592 iface->cross_connect_enabled = 0;
6593 iface->cross_connect_in_use = 0;
6594 wpa_msg_global(iface->parent, MSG_INFO,
6595 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6597 iface->cross_connect_uplink);
6605 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6607 struct wpa_supplicant *iface;
6609 if (!uplink->global->cross_connection)
6612 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6613 if (!iface->cross_connect_enabled)
6615 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6618 if (iface->ap_iface == NULL)
6620 if (iface->cross_connect_in_use)
6623 iface->cross_connect_in_use = 1;
6624 wpa_msg_global(iface->parent, MSG_INFO,
6625 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6626 iface->ifname, iface->cross_connect_uplink);
6631 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6633 struct wpa_supplicant *iface;
6635 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6636 if (!iface->cross_connect_enabled)
6638 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6641 if (!iface->cross_connect_in_use)
6644 wpa_msg_global(iface->parent, MSG_INFO,
6645 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6646 iface->ifname, iface->cross_connect_uplink);
6647 iface->cross_connect_in_use = 0;
6652 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6654 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6655 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6656 wpa_s->cross_connect_disallowed)
6657 wpas_p2p_disable_cross_connect(wpa_s);
6659 wpas_p2p_enable_cross_connect(wpa_s);
6660 if (!wpa_s->ap_iface &&
6661 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6662 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6666 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6668 wpas_p2p_disable_cross_connect(wpa_s);
6669 if (!wpa_s->ap_iface &&
6670 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6672 wpas_p2p_set_group_idle_timeout(wpa_s);
6676 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6678 struct wpa_supplicant *iface;
6680 if (!wpa_s->global->cross_connection)
6683 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6686 if (iface->drv_flags &
6687 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6689 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
6692 wpa_s->cross_connect_enabled = 1;
6693 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6694 sizeof(wpa_s->cross_connect_uplink));
6695 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6696 "%s to %s whenever uplink is available",
6697 wpa_s->ifname, wpa_s->cross_connect_uplink);
6699 if (iface->ap_iface || iface->current_ssid == NULL ||
6700 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6701 iface->cross_connect_disallowed ||
6702 iface->wpa_state != WPA_COMPLETED)
6705 wpa_s->cross_connect_in_use = 1;
6706 wpa_msg_global(wpa_s->parent, MSG_INFO,
6707 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6708 wpa_s->ifname, wpa_s->cross_connect_uplink);
6714 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6716 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6717 !wpa_s->p2p_in_provisioning)
6718 return 0; /* not P2P client operation */
6720 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6722 if (wpa_s != wpa_s->parent)
6723 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6724 wpas_p2p_group_formation_failed(wpa_s);
6729 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6731 struct wpa_supplicant *wpa_s = eloop_ctx;
6732 wpas_p2p_notif_pbc_overlap(wpa_s);
6736 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6738 struct p2p_channels chan, cli_chan;
6739 struct wpa_supplicant *ifs;
6741 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6744 os_memset(&chan, 0, sizeof(chan));
6745 os_memset(&cli_chan, 0, sizeof(cli_chan));
6746 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6747 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6752 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6754 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6756 if (!ifs->current_ssid ||
6757 !ifs->current_ssid->p2p_group ||
6758 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6759 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6761 freq = ifs->current_ssid->frequency;
6762 if (freq_included(&chan, freq)) {
6763 wpa_dbg(ifs, MSG_DEBUG,
6764 "P2P GO operating frequency %d MHz in valid range",
6769 wpa_dbg(ifs, MSG_DEBUG,
6770 "P2P GO operating in invalid frequency %d MHz", freq);
6771 /* TODO: Consider using CSA or removing the group within
6773 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6778 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6779 struct wpa_scan_results *scan_res)
6781 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6785 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6787 struct wpa_global *global = wpa_s->global;
6791 if (global->p2p == NULL)
6794 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6796 if (wpa_s->pending_interface_name[0] &&
6797 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6800 peer = p2p_get_go_neg_peer(global->p2p);
6802 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6803 MACSTR, MAC2STR(peer));
6804 p2p_unauthorize(global->p2p, peer);
6808 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6809 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6810 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6814 if (wpa_s->pending_pd_before_join) {
6815 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6816 wpa_s->pending_pd_before_join = 0;
6820 wpas_p2p_stop_find(wpa_s);
6822 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6823 if (wpa_s == global->p2p_group_formation &&
6824 (wpa_s->p2p_in_provisioning ||
6825 wpa_s->parent->pending_interface_type ==
6826 WPA_IF_P2P_CLIENT)) {
6827 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6828 "formation found - cancelling",
6831 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6832 wpa_s->parent, NULL);
6833 if (wpa_s->p2p_in_provisioning) {
6834 wpas_group_formation_completed(wpa_s, 0);
6837 wpas_p2p_group_delete(wpa_s,
6838 P2P_GROUP_REMOVAL_REQUESTED);
6840 } else if (wpa_s->p2p_in_invitation) {
6841 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6844 wpas_p2p_group_formation_failed(wpa_s);
6849 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6857 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6859 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6862 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6863 "being available anymore");
6864 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
6868 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6869 int freq_24, int freq_5, int freq_overall)
6871 struct p2p_data *p2p = wpa_s->global->p2p;
6874 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6878 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6881 struct p2p_data *p2p = wpa_s->global->p2p;
6886 if (hwaddr_aton(addr, peer))
6889 return p2p_unauthorize(p2p, peer);
6894 * wpas_p2p_disconnect - Disconnect from a P2P Group
6895 * @wpa_s: Pointer to wpa_supplicant data
6896 * Returns: 0 on success, -1 on failure
6898 * This can be used to disconnect from a group in which the local end is a P2P
6899 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6900 * virtual network interface was created for this group, that interface will be
6901 * removed. Otherwise, only the configured P2P group network will be removed
6902 * from the interface.
6904 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6910 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6915 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6919 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6922 ret = p2p_in_progress(wpa_s->global->p2p);
6925 * Check whether there is an ongoing WPS provisioning step (or
6926 * other parts of group formation) on another interface since
6927 * p2p_in_progress() does not report this to avoid issues for
6928 * scans during such provisioning step.
6930 if (wpa_s->global->p2p_group_formation &&
6931 wpa_s->global->p2p_group_formation != wpa_s) {
6932 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6933 "in group formation",
6934 wpa_s->global->p2p_group_formation->ifname);
6939 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
6940 struct os_reltime now;
6941 os_get_reltime(&now);
6942 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6943 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
6944 /* Wait for the first client has expired */
6945 wpa_s->global->p2p_go_wait_client.sec = 0;
6947 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6956 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6957 struct wpa_ssid *ssid)
6959 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6960 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6961 wpa_s->parent, NULL) > 0) {
6963 * Remove the network by scheduling the group formation
6964 * timeout to happen immediately. The teardown code
6965 * needs to be scheduled to run asynch later so that we
6966 * don't delete data from under ourselves unexpectedly.
6967 * Calling wpas_p2p_group_formation_timeout directly
6968 * causes a series of crashes in WPS failure scenarios.
6970 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6971 "P2P group network getting removed");
6972 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6973 wpa_s->parent, NULL);
6978 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
6979 const u8 *addr, const u8 *ssid,
6985 for (s = wpa_s->conf->ssid; s; s = s->next) {
6986 if (s->disabled != 2)
6989 (ssid_len != s->ssid_len ||
6990 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6993 if (s->mode == WPAS_MODE_P2P_GO)
6997 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6998 return s; /* peer is GO in the persistent group */
6999 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7001 for (i = 0; i < s->num_p2p_clients; i++) {
7002 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
7003 addr, ETH_ALEN) == 0)
7004 return s; /* peer is P2P client in persistent
7013 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7016 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7017 wpa_s->parent, NULL) > 0) {
7019 * This can happen if WPS provisioning step is not terminated
7020 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7021 * peer was able to connect, there is no need to time out group
7022 * formation after this, though. In addition, this is used with
7023 * the initial connection wait on the GO as a separate formation
7024 * timeout and as such, expected to be hit after the initial WPS
7025 * provisioning step.
7027 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7029 if (!wpa_s->p2p_go_group_formation_completed &&
7030 !wpa_s->group_formation_reported) {
7032 * GO has not yet notified group formation success since
7033 * the WPS step was not completed cleanly. Do that
7034 * notification now since the P2P Client was able to
7035 * connect and as such, must have received the
7036 * credential from the WPS step.
7038 if (wpa_s->global->p2p)
7039 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7040 wpas_group_formation_completed(wpa_s, 1);
7043 if (!wpa_s->p2p_go_group_formation_completed) {
7044 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7045 wpa_s->p2p_go_group_formation_completed = 1;
7046 wpa_s->global->p2p_group_formation = NULL;
7047 wpa_s->p2p_in_provisioning = 0;
7048 wpa_s->p2p_in_invitation = 0;
7050 wpa_s->global->p2p_go_wait_client.sec = 0;
7053 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7057 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7060 struct wpa_supplicant *group = wpa_s;
7061 if (wpa_s->global->p2p_group_formation)
7062 group = wpa_s->global->p2p_group_formation;
7063 wpa_s = wpa_s->parent;
7064 offchannel_send_action_done(wpa_s);
7066 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7067 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7068 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7069 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7070 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7071 wpa_s->p2p_persistent_id,
7072 wpa_s->p2p_pd_before_go_neg,
7078 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7080 if (!wpa_s->p2p_fallback_to_go_neg ||
7081 wpa_s->p2p_in_provisioning <= 5)
7084 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7085 return 0; /* peer operating as a GO */
7087 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7088 "fallback to GO Negotiation");
7089 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7095 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7097 struct wpa_supplicant *ifs;
7099 if (wpa_s->wpa_state > WPA_SCANNING) {
7100 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7101 "concurrent operation",
7102 wpa_s->conf->p2p_search_delay);
7103 return wpa_s->conf->p2p_search_delay;
7106 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7108 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7109 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7110 "delay due to concurrent operation on "
7112 wpa_s->conf->p2p_search_delay,
7114 return wpa_s->conf->p2p_search_delay;
7122 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7123 struct wpa_ssid *s, const u8 *addr,
7126 struct psk_list_entry *psk, *tmp;
7129 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7131 if ((iface_addr && !psk->p2p &&
7132 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7133 (!iface_addr && psk->p2p &&
7134 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7135 wpa_dbg(wpa_s, MSG_DEBUG,
7136 "P2P: Remove persistent group PSK list entry for "
7138 MAC2STR(psk->addr), psk->p2p);
7139 dl_list_del(&psk->list);
7149 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7150 const u8 *p2p_dev_addr,
7151 const u8 *psk, size_t psk_len)
7153 struct wpa_ssid *ssid = wpa_s->current_ssid;
7154 struct wpa_ssid *persistent;
7155 struct psk_list_entry *p, *last;
7157 if (psk_len != sizeof(p->psk))
7161 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7162 " p2p_dev_addr=" MACSTR,
7163 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7164 if (is_zero_ether_addr(p2p_dev_addr))
7165 p2p_dev_addr = NULL;
7167 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7171 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7172 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7173 /* To be added to persistent group once created */
7174 if (wpa_s->global->add_psk == NULL) {
7175 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7176 if (wpa_s->global->add_psk == NULL)
7179 p = wpa_s->global->add_psk;
7182 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7185 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7187 os_memcpy(p->psk, psk, psk_len);
7191 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7192 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7196 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7199 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7203 p = os_zalloc(sizeof(*p));
7208 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7211 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7213 os_memcpy(p->psk, psk, psk_len);
7215 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7216 (last = dl_list_last(&persistent->psk_list,
7217 struct psk_list_entry, list))) {
7218 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7219 MACSTR " (p2p=%u) to make room for a new one",
7220 MAC2STR(last->addr), last->p2p);
7221 dl_list_del(&last->list);
7225 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7226 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7227 p2p_dev_addr == NULL);
7229 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7230 MACSTR, MAC2STR(p2p_dev_addr));
7232 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7235 dl_list_add(&persistent->psk_list, &p->list);
7237 if (wpa_s->parent->conf->update_config &&
7238 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7239 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7243 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7244 struct wpa_ssid *s, const u8 *addr,
7249 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7250 if (res > 0 && wpa_s->conf->update_config &&
7251 wpa_config_write(wpa_s->confname, wpa_s->conf))
7252 wpa_dbg(wpa_s, MSG_DEBUG,
7253 "P2P: Failed to update configuration");
7257 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7258 const u8 *peer, int iface_addr)
7260 struct hostapd_data *hapd;
7261 struct hostapd_wpa_psk *psk, *prev, *rem;
7262 struct sta_info *sta;
7264 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7265 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7268 /* Remove per-station PSK entry */
7269 hapd = wpa_s->ap_iface->bss[0];
7271 psk = hapd->conf->ssid.wpa_psk;
7273 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7275 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7276 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7277 MACSTR " iface_addr=%d",
7278 MAC2STR(peer), iface_addr);
7280 prev->next = psk->next;
7282 hapd->conf->ssid.wpa_psk = psk->next;
7292 /* Disconnect from group */
7294 sta = ap_get_sta(hapd, peer);
7296 sta = ap_get_sta_p2p(hapd, peer);
7298 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7299 " (iface_addr=%d) from group",
7300 MAC2STR(peer), iface_addr);
7301 hostapd_drv_sta_deauth(hapd, sta->addr,
7302 WLAN_REASON_DEAUTH_LEAVING);
7303 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7308 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7312 struct wpa_supplicant *w;
7314 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7316 /* Remove from any persistent group */
7317 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7318 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7321 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7322 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7325 /* Remove from any operating group */
7326 for (w = wpa_s->global->ifaces; w; w = w->next)
7327 wpas_p2p_remove_client_go(w, peer, iface_addr);
7331 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7333 struct wpa_supplicant *wpa_s = eloop_ctx;
7334 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7338 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7340 struct wpa_supplicant *wpa_s = eloop_ctx;
7342 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7343 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7347 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7348 struct wpa_ssid *ssid)
7350 struct wpa_supplicant *iface;
7352 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7353 if (!iface->current_ssid ||
7354 iface->current_ssid->frequency == freq ||
7355 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7356 !iface->current_ssid->p2p_group))
7359 /* Remove the connection with least priority */
7360 if (!wpas_is_p2p_prioritized(iface)) {
7361 /* STA connection has priority over existing
7362 * P2P connection, so remove the interface. */
7363 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7364 eloop_register_timeout(0, 0,
7365 wpas_p2p_group_freq_conflict,
7367 /* If connection in progress is P2P connection, do not
7368 * proceed for the connection. */
7374 /* P2P connection has priority, disable the STA network
7376 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7378 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7379 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7380 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7382 /* If P2P connection is in progress, continue
7395 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7397 struct wpa_ssid *ssid = wpa_s->current_ssid;
7399 if (ssid == NULL || !ssid->p2p_group)
7402 if (wpa_s->p2p_last_4way_hs_fail &&
7403 wpa_s->p2p_last_4way_hs_fail == ssid) {
7404 u8 go_dev_addr[ETH_ALEN];
7405 struct wpa_ssid *persistent;
7407 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7409 ssid->ssid_len) <= 0) {
7410 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7414 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7415 MACSTR, MAC2STR(go_dev_addr));
7416 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7419 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7420 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7423 wpa_msg_global(wpa_s->parent, MSG_INFO,
7424 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7427 wpa_s->p2p_last_4way_hs_fail = NULL;
7429 * Remove the group from a timeout to avoid issues with caller
7430 * continuing to use the interface if this is on a P2P group
7433 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7438 wpa_s->p2p_last_4way_hs_fail = ssid;
7443 #ifdef CONFIG_WPS_NFC
7445 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7453 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7457 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7458 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7465 wpabuf_put_be16(ret, wsc_len);
7467 wpabuf_put_buf(ret, wsc);
7468 wpabuf_put_be16(ret, wpabuf_len(p2p));
7469 wpabuf_put_buf(ret, p2p);
7473 wpa_hexdump_buf(MSG_DEBUG,
7474 "P2P: Generated NFC connection handover message", ret);
7478 tmp = ndef_build_p2p(ret);
7481 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7491 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7492 struct wpa_ssid **ssid, u8 *go_dev_addr)
7494 struct wpa_supplicant *iface;
7497 os_memset(go_dev_addr, 0, ETH_ALEN);
7500 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7501 if (iface->wpa_state < WPA_ASSOCIATING ||
7502 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7503 !iface->current_ssid->p2p_group ||
7504 iface->current_ssid->mode != WPAS_MODE_INFRA)
7507 *ssid = iface->current_ssid;
7509 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7510 return iface->assoc_freq;
7516 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7519 struct wpabuf *wsc, *p2p;
7520 struct wpa_ssid *ssid;
7521 u8 go_dev_addr[ETH_ALEN];
7522 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7524 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7525 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7529 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7530 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7531 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7532 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7536 if (cli_freq == 0) {
7537 wsc = wps_build_nfc_handover_req_p2p(
7538 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7541 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7542 go_dev_addr, ssid ? ssid->ssid : NULL,
7543 ssid ? ssid->ssid_len : 0);
7545 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7549 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7552 struct wpabuf *wsc, *p2p;
7553 struct wpa_ssid *ssid;
7554 u8 go_dev_addr[ETH_ALEN];
7555 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7557 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7560 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7561 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7562 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7565 if (cli_freq == 0) {
7566 wsc = wps_build_nfc_handover_sel_p2p(
7568 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7569 DEV_PW_NFC_CONNECTION_HANDOVER,
7570 wpa_s->conf->wps_nfc_dh_pubkey,
7571 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7574 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7575 go_dev_addr, ssid ? ssid->ssid : NULL,
7576 ssid ? ssid->ssid_len : 0);
7578 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7582 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7583 struct p2p_nfc_params *params)
7585 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7586 "connection handover (freq=%d)",
7589 if (params->go_freq && params->go_ssid_len) {
7590 wpa_s->p2p_wps_method = WPS_NFC;
7591 wpa_s->pending_join_wps_method = WPS_NFC;
7592 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7593 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7595 return wpas_p2p_join_start(wpa_s, params->go_freq,
7597 params->go_ssid_len);
7600 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7601 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
7602 params->go_freq, -1, 0, 1, 1);
7606 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
7607 struct p2p_nfc_params *params, int tag)
7609 int res, persistent;
7610 struct wpa_ssid *ssid;
7612 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7613 "connection handover");
7614 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7615 ssid = wpa_s->current_ssid;
7618 if (ssid->mode != WPAS_MODE_P2P_GO)
7620 if (wpa_s->ap_iface == NULL)
7624 if (wpa_s == NULL) {
7625 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7629 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7630 DEV_PW_NFC_CONNECTION_HANDOVER &&
7631 !wpa_s->parent->p2p_oob_dev_pw) {
7632 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7635 res = wpas_ap_wps_add_nfc_pw(
7636 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7637 wpa_s->parent->p2p_oob_dev_pw,
7638 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7639 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
7644 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7648 if (!params->peer ||
7649 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7652 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7653 " to join", MAC2STR(params->peer->p2p_device_addr));
7655 wpa_s->global->p2p_invite_group = wpa_s;
7656 persistent = ssid->p2p_persistent_group &&
7657 wpas_p2p_get_persistent(wpa_s->parent,
7658 params->peer->p2p_device_addr,
7659 ssid->ssid, ssid->ssid_len);
7660 wpa_s->parent->pending_invite_ssid_id = -1;
7662 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7663 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7664 ssid->ssid, ssid->ssid_len, ssid->frequency,
7665 wpa_s->global->p2p_dev_addr, persistent, 0,
7666 wpa_s->parent->p2p_oob_dev_pw_id);
7670 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
7671 struct p2p_nfc_params *params,
7674 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7675 "connection handover");
7676 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7677 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
7678 forced_freq, -1, 0, 1, 1);
7682 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
7683 struct p2p_nfc_params *params,
7688 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7689 "connection handover");
7690 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7691 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
7692 forced_freq, -1, 0, 1, 1);
7696 res = wpas_p2p_listen(wpa_s, 60);
7698 p2p_unauthorize(wpa_s->global->p2p,
7699 params->peer->p2p_device_addr);
7706 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7707 const struct wpabuf *data,
7708 int sel, int tag, int forced_freq)
7710 const u8 *pos, *end;
7712 struct p2p_nfc_params params;
7715 os_memset(¶ms, 0, sizeof(params));
7718 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7720 pos = wpabuf_head(data);
7721 end = pos + wpabuf_len(data);
7723 if (end - pos < 2) {
7724 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7728 len = WPA_GET_BE16(pos);
7730 if (len > end - pos) {
7731 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7735 params.wsc_attr = pos;
7736 params.wsc_len = len;
7739 if (end - pos < 2) {
7740 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7744 len = WPA_GET_BE16(pos);
7746 if (len > end - pos) {
7747 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7751 params.p2p_attr = pos;
7752 params.p2p_len = len;
7755 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7756 params.wsc_attr, params.wsc_len);
7757 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7758 params.p2p_attr, params.p2p_len);
7760 wpa_hexdump(MSG_DEBUG,
7761 "P2P: Ignored extra data after P2P attributes",
7765 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
7769 if (params.next_step == NO_ACTION)
7772 if (params.next_step == BOTH_GO) {
7773 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7774 MAC2STR(params.peer->p2p_device_addr));
7778 if (params.next_step == PEER_CLIENT) {
7779 if (!is_zero_ether_addr(params.go_dev_addr)) {
7780 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7781 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7783 MAC2STR(params.peer->p2p_device_addr),
7785 MAC2STR(params.go_dev_addr),
7786 wpa_ssid_txt(params.go_ssid,
7787 params.go_ssid_len));
7789 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7790 "peer=" MACSTR " freq=%d",
7791 MAC2STR(params.peer->p2p_device_addr),
7797 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
7798 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7799 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7803 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7804 wpa_s->p2p_oob_dev_pw = NULL;
7806 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7807 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7812 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7813 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7814 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7815 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7816 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7817 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7818 wpa_s->p2p_peer_oob_pk_hash_known = 1;
7822 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7823 "peer OOB Device Password Id %u", id);
7826 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7827 "Device Password Id %u", id);
7828 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7829 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7830 params.oob_dev_pw_len -
7831 WPS_OOB_PUBKEY_HASH_LEN - 2);
7832 wpa_s->p2p_oob_dev_pw_id = id;
7833 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7834 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7835 params.oob_dev_pw_len -
7836 WPS_OOB_PUBKEY_HASH_LEN - 2);
7837 if (wpa_s->p2p_oob_dev_pw == NULL)
7840 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7841 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7842 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7845 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7846 "without Device Password");
7847 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7850 switch (params.next_step) {
7854 /* already covered above */
7857 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
7859 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
7861 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
7863 /* TODO: use own OOB Dev Pw */
7864 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
7871 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
7872 const struct wpabuf *data, int forced_freq)
7874 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7877 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
7881 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7882 const struct wpabuf *req,
7883 const struct wpabuf *sel, int forced_freq)
7888 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7891 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7893 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7894 wpabuf_head(req), wpabuf_len(req));
7895 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7896 wpabuf_head(sel), wpabuf_len(sel));
7898 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
7899 tmp = ndef_parse_p2p(init ? sel : req);
7901 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7905 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7913 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7916 int go_intent = wpa_s->conf->p2p_go_intent;
7917 struct wpa_supplicant *iface;
7919 if (wpa_s->global->p2p == NULL)
7923 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7924 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7926 if (!iface->ap_iface)
7928 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7930 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7932 if (wpa_s->p2p_nfc_tag_enabled)
7933 wpas_p2p_remove_pending_group_interface(wpa_s);
7934 wpa_s->p2p_nfc_tag_enabled = 0;
7938 if (wpa_s->global->p2p_disabled)
7941 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7942 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7943 wpa_s->conf->wps_nfc_dev_pw == NULL ||
7944 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7945 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7946 "to allow static handover cases");
7950 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7952 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7953 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7954 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7955 if (wpa_s->p2p_oob_dev_pw == NULL)
7957 wpa_s->p2p_peer_oob_pk_hash_known = 0;
7959 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7960 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7962 * P2P Group Interface present and the command came on group
7963 * interface, so enable the token for the current interface.
7965 wpa_s->create_p2p_iface = 0;
7967 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7970 if (wpa_s->create_p2p_iface) {
7971 enum wpa_driver_if_type iftype;
7972 /* Prepare to add a new interface for the group */
7973 iftype = WPA_IF_P2P_GROUP;
7974 if (go_intent == 15)
7975 iftype = WPA_IF_P2P_GO;
7976 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7977 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7978 "interface for the group");
7982 if_addr = wpa_s->pending_interface_addr;
7984 if_addr = wpa_s->own_addr;
7986 wpa_s->p2p_nfc_tag_enabled = enabled;
7988 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7989 struct hostapd_data *hapd;
7990 if (iface->ap_iface == NULL)
7992 hapd = iface->ap_iface->bss[0];
7993 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7994 hapd->conf->wps_nfc_dh_pubkey =
7995 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7996 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7997 hapd->conf->wps_nfc_dh_privkey =
7998 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7999 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8000 hapd->conf->wps_nfc_dev_pw =
8001 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8002 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8004 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8005 wpa_dbg(iface, MSG_DEBUG,
8006 "P2P: Failed to enable NFC Tag for GO");
8009 p2p_set_authorized_oob_dev_pw_id(
8010 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8016 #endif /* CONFIG_WPS_NFC */
8019 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8020 struct wpa_used_freq_data *freqs,
8023 u8 curr_chan, cand, chan;
8026 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8027 for (i = 0, cand = 0; i < num; i++) {
8028 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8029 if (curr_chan == chan) {
8034 if (chan == 1 || chan == 6 || chan == 11)
8039 wpa_dbg(wpa_s, MSG_DEBUG,
8040 "P2P: Update Listen channel to %u baased on operating channel",
8042 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8047 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8049 struct wpa_used_freq_data *freqs;
8050 unsigned int num = wpa_s->num_multichan_concurrent;
8052 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8056 * If possible, optimize the Listen channel to be a channel that is
8057 * already used by one of the other interfaces.
8059 if (!wpa_s->conf->p2p_optimize_listen_chan)
8062 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8065 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8069 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8071 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
8076 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8078 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8079 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8080 "the management interface is being removed");
8081 wpas_p2p_deinit_global(wpa_s->global);
8086 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8088 if (wpa_s->ap_iface->bss)
8089 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8090 wpas_p2p_group_deinit(wpa_s);