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 int 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);
275 os_get_reltime(&wpa_s->scan_trigger_time);
276 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
277 wpa_s->own_scan_requested = 1;
278 wpa_s->p2p_scan_work = work;
282 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
283 unsigned int num_req_dev_types,
284 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
286 struct wpa_supplicant *wpa_s = ctx;
287 struct wpa_driver_scan_params *params = NULL;
288 struct wpabuf *wps_ie, *ies;
292 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
295 if (wpa_s->p2p_scan_work) {
296 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
300 params = os_zalloc(sizeof(*params));
304 /* P2P Wildcard SSID */
305 params->num_ssids = 1;
306 n = os_malloc(P2P_WILDCARD_SSID_LEN);
309 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
310 params->ssids[0].ssid = n;
311 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
313 wpa_s->wps->dev.p2p = 1;
314 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
315 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
316 num_req_dev_types, req_dev_types);
320 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
321 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
326 wpabuf_put_buf(ies, wps_ie);
329 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
331 params->p2p_probe = 1;
332 n = os_malloc(wpabuf_len(ies));
337 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
338 params->extra_ies = n;
339 params->extra_ies_len = wpabuf_len(ies);
343 case P2P_SCAN_SOCIAL:
344 params->freqs = os_malloc(4 * sizeof(int));
345 if (params->freqs == NULL)
347 params->freqs[0] = 2412;
348 params->freqs[1] = 2437;
349 params->freqs[2] = 2462;
350 params->freqs[3] = 0;
354 case P2P_SCAN_SOCIAL_PLUS_ONE:
355 params->freqs = os_malloc(5 * sizeof(int));
356 if (params->freqs == NULL)
358 params->freqs[0] = 2412;
359 params->freqs[1] = 2437;
360 params->freqs[2] = 2462;
361 params->freqs[3] = freq;
362 params->freqs[4] = 0;
366 radio_remove_works(wpa_s, "p2p-scan", 0);
367 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
373 wpa_scan_free_params(params);
378 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
380 switch (p2p_group_interface) {
381 case P2P_GROUP_INTERFACE_PENDING:
382 return WPA_IF_P2P_GROUP;
383 case P2P_GROUP_INTERFACE_GO:
384 return WPA_IF_P2P_GO;
385 case P2P_GROUP_INTERFACE_CLIENT:
386 return WPA_IF_P2P_CLIENT;
389 return WPA_IF_P2P_GROUP;
393 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
395 size_t ssid_len, int *go)
399 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
400 for (s = wpa_s->conf->ssid; s; s = s->next) {
401 if (s->disabled != 0 || !s->p2p_group ||
402 s->ssid_len != ssid_len ||
403 os_memcmp(ssid, s->ssid, ssid_len) != 0)
405 if (s->mode == WPAS_MODE_P2P_GO &&
406 s != wpa_s->current_ssid)
409 *go = s->mode == WPAS_MODE_P2P_GO;
418 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
419 enum p2p_group_removal_reason removal_reason)
421 struct wpa_ssid *ssid;
425 ssid = wpa_s->current_ssid;
428 * The current SSID was not known, but there may still be a
429 * pending P2P group interface waiting for provisioning or a
430 * P2P group that is trying to reconnect.
432 ssid = wpa_s->conf->ssid;
434 if (ssid->p2p_group && ssid->disabled != 2)
439 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
441 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
446 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
448 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
449 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
450 wpa_s->reassociate = 0;
451 wpa_s->disconnected = 1;
456 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
457 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
459 if (os_strcmp(gtype, "client") == 0)
460 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
462 if (wpa_s->cross_connect_in_use) {
463 wpa_s->cross_connect_in_use = 0;
464 wpa_msg_global(wpa_s->parent, MSG_INFO,
465 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
466 wpa_s->ifname, wpa_s->cross_connect_uplink);
468 switch (removal_reason) {
469 case P2P_GROUP_REMOVAL_REQUESTED:
470 reason = " reason=REQUESTED";
472 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
473 reason = " reason=FORMATION_FAILED";
475 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
476 reason = " reason=IDLE";
478 case P2P_GROUP_REMOVAL_UNAVAILABLE:
479 reason = " reason=UNAVAILABLE";
481 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
482 reason = " reason=GO_ENDING_SESSION";
484 case P2P_GROUP_REMOVAL_PSK_FAILURE:
485 reason = " reason=PSK_FAILURE";
487 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
488 reason = " reason=FREQ_CONFLICT";
494 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
495 wpa_msg_global(wpa_s->parent, MSG_INFO,
496 P2P_EVENT_GROUP_REMOVED "%s %s%s",
497 wpa_s->ifname, gtype, reason);
500 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
501 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
502 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
503 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
504 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
505 wpa_s->parent, NULL) > 0) {
506 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
508 wpa_s->p2p_in_provisioning = 0;
511 wpa_s->p2p_in_invitation = 0;
514 * Make sure wait for the first client does not remain active after the
515 * group has been removed.
517 wpa_s->global->p2p_go_wait_client.sec = 0;
519 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
520 struct wpa_global *global;
522 enum wpa_driver_if_type type;
523 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
525 global = wpa_s->global;
526 ifname = os_strdup(wpa_s->ifname);
527 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
528 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
529 wpa_s = global->ifaces;
531 wpa_drv_if_remove(wpa_s, type, ifname);
536 if (!wpa_s->p2p_go_group_formation_completed) {
537 wpa_s->global->p2p_group_formation = NULL;
538 wpa_s->p2p_in_provisioning = 0;
541 wpa_s->show_group_started = 0;
542 os_free(wpa_s->go_params);
543 wpa_s->go_params = NULL;
545 wpa_s->waiting_presence_resp = 0;
547 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
548 if (ssid && (ssid->p2p_group ||
549 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
550 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
552 if (ssid == wpa_s->current_ssid) {
553 wpa_sm_set_config(wpa_s->wpa, NULL);
554 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
555 wpa_s->current_ssid = NULL;
558 * Networks objects created during any P2P activities are not
559 * exposed out as they might/will confuse certain non-P2P aware
560 * applications since these network objects won't behave like
563 * Likewise, we don't send out network removed signals for such
566 wpa_config_remove_network(wpa_s->conf, id);
567 wpa_supplicant_clear_status(wpa_s);
568 wpa_supplicant_cancel_sched_scan(wpa_s);
570 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
574 wpa_supplicant_ap_deinit(wpa_s);
576 wpa_drv_deinit_p2p_cli(wpa_s);
582 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
584 const u8 *ssid, size_t ssid_len)
592 if (wpa_s->go_params)
593 bssid = wpa_s->go_params->peer_interface_addr;
595 bssid = wpa_s->bssid;
597 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
598 if (bss == NULL && wpa_s->go_params &&
599 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
600 bss = wpa_bss_get_p2p_dev_addr(
601 wpa_s, wpa_s->go_params->peer_device_addr);
603 u8 iface_addr[ETH_ALEN];
604 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
606 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
609 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
610 "group is persistent - BSS " MACSTR " not found",
615 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
617 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
620 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
621 "group is persistent - BSS " MACSTR
622 " did not include P2P IE", MAC2STR(bssid));
623 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
624 (u8 *) (bss + 1), bss->ie_len);
625 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
626 ((u8 *) bss + 1) + bss->ie_len,
631 group_capab = p2p_get_group_capab(p2p);
632 addr = p2p_get_go_dev_addr(p2p);
633 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
634 "group_capab=0x%x", group_capab);
636 os_memcpy(go_dev_addr, addr, ETH_ALEN);
637 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
640 os_memset(go_dev_addr, 0, ETH_ALEN);
643 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
644 "go_dev_addr=" MACSTR,
645 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
647 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
651 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
652 struct wpa_ssid *ssid,
653 const u8 *go_dev_addr)
658 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
659 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
660 for (s = wpa_s->conf->ssid; s; s = s->next) {
661 if (s->disabled == 2 &&
662 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
663 s->ssid_len == ssid->ssid_len &&
664 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
669 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
671 if (ssid->passphrase && !s->passphrase)
673 else if (ssid->passphrase && s->passphrase &&
674 os_strcmp(ssid->passphrase, s->passphrase) != 0)
677 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
680 s = wpa_config_add_network(wpa_s->conf);
685 * Instead of network_added we emit persistent_group_added
686 * notification. Also to keep the defense checks in
687 * persistent_group obj registration method, we set the
688 * relevant flags in s to designate it as a persistent group.
691 s->p2p_persistent_group = 1;
692 wpas_notify_persistent_group_added(wpa_s, s);
693 wpa_config_set_network_defaults(s);
697 s->p2p_persistent_group = 1;
700 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
701 s->mode = ssid->mode;
702 s->auth_alg = WPA_AUTH_ALG_OPEN;
703 s->key_mgmt = WPA_KEY_MGMT_PSK;
704 s->proto = WPA_PROTO_RSN;
705 s->pairwise_cipher = WPA_CIPHER_CCMP;
707 if (ssid->passphrase) {
708 os_free(s->passphrase);
709 s->passphrase = os_strdup(ssid->passphrase);
713 os_memcpy(s->psk, ssid->psk, 32);
715 if (s->passphrase && !s->psk_set)
716 wpa_config_update_psk(s);
717 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
719 s->ssid = os_malloc(ssid->ssid_len);
722 s->ssid_len = ssid->ssid_len;
723 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
725 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
726 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
727 wpa_s->global->add_psk = NULL;
731 if (changed && wpa_s->conf->update_config &&
732 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
733 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
740 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
743 struct wpa_ssid *ssid, *s;
748 ssid = wpa_s->current_ssid;
749 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
750 !ssid->p2p_persistent_group)
753 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
754 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
757 if (s->ssid_len == ssid->ssid_len &&
758 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
765 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
766 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
770 if (i == s->num_p2p_clients - 1)
771 return; /* already the most recent entry */
773 /* move the entry to mark it most recent */
774 os_memmove(s->p2p_client_list + i * ETH_ALEN,
775 s->p2p_client_list + (i + 1) * ETH_ALEN,
776 (s->num_p2p_clients - i - 1) * ETH_ALEN);
777 os_memcpy(s->p2p_client_list +
778 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
783 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
784 n = os_realloc_array(s->p2p_client_list,
785 s->num_p2p_clients + 1, ETH_ALEN);
788 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
789 s->p2p_client_list = n;
790 s->num_p2p_clients++;
791 } else if (!found && s->p2p_client_list) {
792 /* Not enough room for an additional entry - drop the oldest
794 os_memmove(s->p2p_client_list,
795 s->p2p_client_list + ETH_ALEN,
796 (s->num_p2p_clients - 1) * ETH_ALEN);
797 os_memcpy(s->p2p_client_list +
798 (s->num_p2p_clients - 1) * ETH_ALEN,
802 if (wpa_s->parent->conf->update_config &&
803 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
804 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
808 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
809 int go, struct wpa_ssid *ssid, int freq,
810 const u8 *psk, const char *passphrase,
811 const u8 *go_dev_addr, int persistent,
814 const char *ssid_txt;
818 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
823 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
827 if (passphrase && passphrase[0] == '\0')
831 * Include PSK/passphrase only in the control interface message and
832 * leave it out from the debug log entry.
834 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
835 P2P_EVENT_GROUP_STARTED
836 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
838 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
839 psk ? " psk=" : "", psk_txt,
840 passphrase ? " passphrase=\"" : "",
841 passphrase ? passphrase : "",
842 passphrase ? "\"" : "",
843 MAC2STR(go_dev_addr),
844 persistent ? " [PERSISTENT]" : "", extra);
845 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
846 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
847 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
848 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
853 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
856 struct wpa_ssid *ssid;
859 u8 go_dev_addr[ETH_ALEN];
863 * This callback is likely called for the main interface. Update wpa_s
864 * to use the group interface if a new interface was created for the
867 if (wpa_s->global->p2p_group_formation)
868 wpa_s = wpa_s->global->p2p_group_formation;
869 if (wpa_s->p2p_go_group_formation_completed) {
870 wpa_s->global->p2p_group_formation = NULL;
871 wpa_s->p2p_in_provisioning = 0;
873 wpa_s->p2p_in_invitation = 0;
876 wpa_msg_global(wpa_s->parent, MSG_INFO,
877 P2P_EVENT_GROUP_FORMATION_FAILURE);
878 wpas_p2p_group_delete(wpa_s,
879 P2P_GROUP_REMOVAL_FORMATION_FAILED);
883 wpa_msg_global(wpa_s->parent, MSG_INFO,
884 P2P_EVENT_GROUP_FORMATION_SUCCESS);
886 ssid = wpa_s->current_ssid;
887 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
888 ssid->mode = WPAS_MODE_P2P_GO;
889 p2p_group_notif_formation_done(wpa_s->p2p_group);
890 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
895 client = ssid->mode == WPAS_MODE_INFRA;
896 if (ssid->mode == WPAS_MODE_P2P_GO) {
897 persistent = ssid->p2p_persistent_group;
898 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
901 persistent = wpas_p2p_persistent_group(wpa_s,
906 client = wpa_s->p2p_group_interface ==
907 P2P_GROUP_INTERFACE_CLIENT;
908 os_memset(go_dev_addr, 0, ETH_ALEN);
911 wpa_s->show_group_started = 0;
914 * Indicate event only after successfully completed 4-way
915 * handshake, i.e., when the interface is ready for data
918 wpa_s->show_group_started = 1;
920 wpas_p2p_group_started(wpa_s, 1, ssid,
921 ssid ? ssid->frequency : 0,
922 ssid && ssid->passphrase == NULL &&
923 ssid->psk_set ? ssid->psk : NULL,
924 ssid ? ssid->passphrase : NULL,
925 go_dev_addr, persistent, "");
926 wpas_p2p_cross_connect_setup(wpa_s);
927 wpas_p2p_set_group_idle_timeout(wpa_s);
931 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
934 os_free(wpa_s->global->add_psk);
935 wpa_s->global->add_psk = NULL;
937 if (network_id < 0 && ssid)
938 network_id = ssid->id;
940 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
941 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
946 struct send_action_work {
952 unsigned int wait_time;
957 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
960 struct wpa_supplicant *wpa_s = eloop_ctx;
962 if (!wpa_s->p2p_send_action_work)
965 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
966 os_free(wpa_s->p2p_send_action_work->ctx);
967 radio_work_done(wpa_s->p2p_send_action_work);
968 wpa_s->p2p_send_action_work = NULL;
972 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
974 if (wpa_s->p2p_send_action_work) {
975 struct send_action_work *awork;
976 awork = wpa_s->p2p_send_action_work->ctx;
977 if (awork->wait_time == 0) {
979 radio_work_done(wpa_s->p2p_send_action_work);
980 wpa_s->p2p_send_action_work = NULL;
983 * In theory, this should not be needed, but number of
984 * places in the P2P code is still using non-zero wait
985 * time for the last Action frame in the sequence and
986 * some of these do not call send_action_done().
988 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
990 eloop_register_timeout(
991 0, awork->wait_time * 1000,
992 wpas_p2p_send_action_work_timeout,
999 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1001 const u8 *dst, const u8 *src,
1003 const u8 *data, size_t data_len,
1004 enum offchannel_send_action_result
1007 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1009 wpas_p2p_action_tx_clear(wpa_s);
1011 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1015 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1016 res = P2P_SEND_ACTION_SUCCESS;
1018 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1019 res = P2P_SEND_ACTION_NO_ACK;
1021 case OFFCHANNEL_SEND_ACTION_FAILED:
1022 res = P2P_SEND_ACTION_FAILED;
1026 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1028 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1029 wpa_s->pending_pd_before_join &&
1030 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1031 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1032 wpa_s->p2p_fallback_to_go_neg) {
1033 wpa_s->pending_pd_before_join = 0;
1034 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1035 "during p2p_connect-auto");
1036 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1042 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1044 struct wpa_supplicant *wpa_s = work->wpa_s;
1045 struct send_action_work *awork = work->ctx;
1048 if (work->started) {
1049 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1051 wpa_s->p2p_send_action_work = NULL;
1052 offchannel_send_action_done(wpa_s);
1058 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1059 awork->bssid, awork->buf, awork->len,
1061 wpas_p2p_send_action_tx_status, 1) < 0) {
1063 radio_work_done(work);
1066 wpa_s->p2p_send_action_work = work;
1070 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1071 unsigned int freq, const u8 *dst,
1072 const u8 *src, const u8 *bssid, const u8 *buf,
1073 size_t len, unsigned int wait_time)
1075 struct send_action_work *awork;
1077 if (wpa_s->p2p_send_action_work) {
1078 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1082 awork = os_zalloc(sizeof(*awork) + len);
1087 os_memcpy(awork->dst, dst, ETH_ALEN);
1088 os_memcpy(awork->src, src, ETH_ALEN);
1089 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1091 awork->wait_time = wait_time;
1092 os_memcpy(awork->buf, buf, len);
1094 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1095 wpas_send_action_cb, awork) < 0) {
1104 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1105 const u8 *src, const u8 *bssid, const u8 *buf,
1106 size_t len, unsigned int wait_time)
1108 struct wpa_supplicant *wpa_s = ctx;
1109 int listen_freq = -1, send_freq = -1;
1111 if (wpa_s->p2p_listen_work)
1112 listen_freq = wpa_s->p2p_listen_work->freq;
1113 if (wpa_s->p2p_send_action_work)
1114 send_freq = wpa_s->p2p_send_action_work->freq;
1115 if (listen_freq != (int) freq && send_freq != (int) freq) {
1116 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1117 listen_freq, send_freq);
1118 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1122 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1123 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1125 wpas_p2p_send_action_tx_status, 1);
1129 static void wpas_send_action_done(void *ctx)
1131 struct wpa_supplicant *wpa_s = ctx;
1133 if (wpa_s->p2p_send_action_work) {
1134 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1136 os_free(wpa_s->p2p_send_action_work->ctx);
1137 radio_work_done(wpa_s->p2p_send_action_work);
1138 wpa_s->p2p_send_action_work = NULL;
1141 offchannel_send_action_done(wpa_s);
1145 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1146 struct p2p_go_neg_results *params)
1148 if (wpa_s->go_params == NULL) {
1149 wpa_s->go_params = os_malloc(sizeof(*params));
1150 if (wpa_s->go_params == NULL)
1153 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1158 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1159 struct p2p_go_neg_results *res)
1161 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1162 " dev_addr " MACSTR " wps_method %d",
1163 MAC2STR(res->peer_interface_addr),
1164 MAC2STR(res->peer_device_addr), res->wps_method);
1165 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1166 res->ssid, res->ssid_len);
1167 wpa_supplicant_ap_deinit(wpa_s);
1168 wpas_copy_go_neg_results(wpa_s, res);
1169 if (res->wps_method == WPS_PBC) {
1170 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1171 #ifdef CONFIG_WPS_NFC
1172 } else if (res->wps_method == WPS_NFC) {
1173 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1174 res->peer_interface_addr,
1175 wpa_s->parent->p2p_oob_dev_pw,
1176 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1177 wpa_s->parent->p2p_oob_dev_pw_id ==
1178 DEV_PW_NFC_CONNECTION_HANDOVER ?
1179 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1182 #endif /* CONFIG_WPS_NFC */
1184 u16 dev_pw_id = DEV_PW_DEFAULT;
1185 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1186 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1187 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1188 wpa_s->p2p_pin, 1, dev_pw_id);
1193 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1194 struct wpa_ssid *ssid)
1196 struct wpa_ssid *persistent;
1197 struct psk_list_entry *psk;
1198 struct hostapd_data *hapd;
1200 if (!wpa_s->ap_iface)
1203 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1205 if (persistent == NULL)
1208 hapd = wpa_s->ap_iface->bss[0];
1210 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1212 struct hostapd_wpa_psk *hpsk;
1214 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1216 MAC2STR(psk->addr), psk->p2p);
1217 hpsk = os_zalloc(sizeof(*hpsk));
1220 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1222 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1224 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1225 hpsk->next = hapd->conf->ssid.wpa_psk;
1226 hapd->conf->ssid.wpa_psk = hpsk;
1231 static void p2p_go_configured(void *ctx, void *data)
1233 struct wpa_supplicant *wpa_s = ctx;
1234 struct p2p_go_neg_results *params = data;
1235 struct wpa_ssid *ssid;
1236 int network_id = -1;
1238 ssid = wpa_s->current_ssid;
1239 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1240 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1241 if (wpa_s->global->p2p_group_formation == wpa_s)
1242 wpa_s->global->p2p_group_formation = NULL;
1243 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1244 params->passphrase[0] == '\0' ?
1247 wpa_s->global->p2p_dev_addr,
1248 params->persistent_group, "");
1250 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1251 if (params->persistent_group) {
1252 network_id = wpas_p2p_store_persistent_group(
1253 wpa_s->parent, ssid,
1254 wpa_s->global->p2p_dev_addr);
1255 wpas_p2p_add_psk_list(wpa_s, ssid);
1258 network_id = ssid->id;
1259 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1260 wpas_p2p_cross_connect_setup(wpa_s);
1261 wpas_p2p_set_group_idle_timeout(wpa_s);
1263 if (wpa_s->p2p_first_connection_timeout) {
1264 wpa_dbg(wpa_s, MSG_DEBUG,
1265 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1266 wpa_s->p2p_first_connection_timeout);
1267 wpa_s->p2p_go_group_formation_completed = 0;
1268 wpa_s->global->p2p_group_formation = wpa_s;
1269 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1270 wpa_s->parent, NULL);
1271 eloop_register_timeout(
1272 wpa_s->p2p_first_connection_timeout, 0,
1273 wpas_p2p_group_formation_timeout,
1274 wpa_s->parent, NULL);
1280 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1281 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1282 params->peer_interface_addr)) {
1283 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1287 if (params->wps_method == WPS_PBC) {
1288 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1289 params->peer_device_addr);
1290 #ifdef CONFIG_WPS_NFC
1291 } else if (params->wps_method == WPS_NFC) {
1292 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1293 DEV_PW_NFC_CONNECTION_HANDOVER &&
1294 !wpa_s->parent->p2p_oob_dev_pw) {
1295 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1298 wpas_ap_wps_add_nfc_pw(
1299 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1300 wpa_s->parent->p2p_oob_dev_pw,
1301 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1302 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1303 #endif /* CONFIG_WPS_NFC */
1304 } else if (wpa_s->p2p_pin[0])
1305 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1306 wpa_s->p2p_pin, NULL, 0, 0);
1307 os_free(wpa_s->go_params);
1308 wpa_s->go_params = NULL;
1312 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1313 struct p2p_go_neg_results *params,
1314 int group_formation)
1316 struct wpa_ssid *ssid;
1318 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1319 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1320 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1325 ssid = wpa_config_add_network(wpa_s->conf);
1327 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1331 wpa_s->show_group_started = 0;
1333 wpa_config_set_network_defaults(ssid);
1334 ssid->temporary = 1;
1335 ssid->p2p_group = 1;
1336 ssid->p2p_persistent_group = params->persistent_group;
1337 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1339 ssid->frequency = params->freq;
1340 ssid->ht40 = params->ht40;
1341 ssid->vht = params->vht;
1342 ssid->ssid = os_zalloc(params->ssid_len + 1);
1344 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1345 ssid->ssid_len = params->ssid_len;
1347 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1348 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1349 ssid->proto = WPA_PROTO_RSN;
1350 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1351 if (os_strlen(params->passphrase) > 0) {
1352 ssid->passphrase = os_strdup(params->passphrase);
1353 if (ssid->passphrase == NULL) {
1354 wpa_msg_global(wpa_s, MSG_ERROR,
1355 "P2P: Failed to copy passphrase for GO");
1356 wpa_config_remove_network(wpa_s->conf, ssid->id);
1360 ssid->passphrase = NULL;
1361 ssid->psk_set = params->psk_set;
1363 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1364 else if (ssid->passphrase)
1365 wpa_config_update_psk(ssid);
1366 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1368 wpa_s->ap_configured_cb = p2p_go_configured;
1369 wpa_s->ap_configured_cb_ctx = wpa_s;
1370 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1371 wpa_s->scan_req = NORMAL_SCAN_REQ;
1372 wpa_s->connect_without_scan = ssid;
1373 wpa_s->reassociate = 1;
1374 wpa_s->disconnected = 0;
1375 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1377 wpa_supplicant_req_scan(wpa_s, 0, 0);
1381 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1382 const struct wpa_supplicant *src)
1384 struct wpa_config *d;
1385 const struct wpa_config *s;
1390 #define C(n) if (s->n) d->n = os_strdup(s->n)
1399 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1400 os_memcpy(d->sec_device_type, s->sec_device_type,
1401 sizeof(d->sec_device_type));
1402 d->num_sec_device_types = s->num_sec_device_types;
1404 d->p2p_group_idle = s->p2p_group_idle;
1405 d->p2p_intra_bss = s->p2p_intra_bss;
1406 d->persistent_reconnect = s->persistent_reconnect;
1407 d->max_num_sta = s->max_num_sta;
1408 d->pbc_in_m1 = s->pbc_in_m1;
1409 d->ignore_old_scan_res = s->ignore_old_scan_res;
1410 d->beacon_int = s->beacon_int;
1411 d->dtim_period = s->dtim_period;
1412 d->disassoc_low_ack = s->disassoc_low_ack;
1413 d->disable_scan_offload = s->disable_scan_offload;
1415 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1416 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1417 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1422 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1423 char *ifname, size_t len)
1425 char *ifname_ptr = wpa_s->ifname;
1427 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1428 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1429 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1432 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1433 if (os_strlen(ifname) >= IFNAMSIZ &&
1434 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1435 /* Try to avoid going over the IFNAMSIZ length limit */
1436 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1441 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1442 enum wpa_driver_if_type type)
1444 char ifname[120], force_ifname[120];
1446 if (wpa_s->pending_interface_name[0]) {
1447 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1448 "- skip creation of a new one");
1449 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1450 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1451 "unknown?! ifname='%s'",
1452 wpa_s->pending_interface_name);
1458 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1459 force_ifname[0] = '\0';
1461 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1463 wpa_s->p2p_group_idx++;
1465 wpa_s->pending_interface_type = type;
1466 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1467 wpa_s->pending_interface_addr, NULL) < 0) {
1468 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1473 if (force_ifname[0]) {
1474 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1476 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1477 sizeof(wpa_s->pending_interface_name));
1479 os_strlcpy(wpa_s->pending_interface_name, ifname,
1480 sizeof(wpa_s->pending_interface_name));
1481 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1482 MACSTR, wpa_s->pending_interface_name,
1483 MAC2STR(wpa_s->pending_interface_addr));
1489 static void wpas_p2p_remove_pending_group_interface(
1490 struct wpa_supplicant *wpa_s)
1492 if (!wpa_s->pending_interface_name[0] ||
1493 is_zero_ether_addr(wpa_s->pending_interface_addr))
1494 return; /* No pending virtual interface */
1496 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1497 wpa_s->pending_interface_name);
1498 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1499 wpa_s->pending_interface_name);
1500 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1501 wpa_s->pending_interface_name[0] = '\0';
1505 static struct wpa_supplicant *
1506 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1508 struct wpa_interface iface;
1509 struct wpa_supplicant *group_wpa_s;
1511 if (!wpa_s->pending_interface_name[0]) {
1512 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1513 if (!wpas_p2p_create_iface(wpa_s))
1516 * Something has forced us to remove the pending interface; try
1517 * to create a new one and hope for the best that we will get
1518 * the same local address.
1520 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1521 WPA_IF_P2P_CLIENT) < 0)
1525 os_memset(&iface, 0, sizeof(iface));
1526 iface.ifname = wpa_s->pending_interface_name;
1527 iface.driver = wpa_s->driver->name;
1528 if (wpa_s->conf->ctrl_interface == NULL &&
1529 wpa_s->parent != wpa_s &&
1531 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1532 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1534 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1535 iface.driver_param = wpa_s->conf->driver_param;
1536 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1537 if (group_wpa_s == NULL) {
1538 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1539 "wpa_supplicant interface");
1542 wpa_s->pending_interface_name[0] = '\0';
1543 group_wpa_s->parent = wpa_s;
1544 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1545 P2P_GROUP_INTERFACE_CLIENT;
1546 wpa_s->global->p2p_group_formation = group_wpa_s;
1548 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1554 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1557 struct wpa_supplicant *wpa_s = eloop_ctx;
1558 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1559 wpas_p2p_group_formation_failed(wpa_s);
1563 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1565 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1566 wpa_s->parent, NULL);
1567 if (wpa_s->global->p2p)
1568 p2p_group_formation_failed(wpa_s->global->p2p);
1569 wpas_group_formation_completed(wpa_s, 0);
1573 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
1575 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
1576 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1577 wpa_s->parent, NULL);
1578 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1579 wpa_s->parent, NULL);
1580 wpa_s->global->p2p_fail_on_wps_complete = 0;
1584 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1586 if (wpa_s->global->p2p_group_formation != wpa_s)
1588 /* Speed up group formation timeout since this cannot succeed */
1589 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1590 wpa_s->parent, NULL);
1591 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1592 wpa_s->parent, NULL);
1596 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1598 struct wpa_supplicant *wpa_s = ctx;
1600 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1601 wpa_drv_cancel_remain_on_channel(wpa_s);
1602 wpa_s->off_channel_freq = 0;
1603 wpa_s->roc_waiting_drv_freq = 0;
1607 wpa_msg_global(wpa_s, MSG_INFO,
1608 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1610 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1611 wpas_p2p_remove_pending_group_interface(wpa_s);
1615 if (wpa_s->p2p_go_ht40)
1617 if (wpa_s->p2p_go_vht)
1620 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1621 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1623 res->role_go ? "GO" : "client", res->freq, res->ht40,
1624 MAC2STR(res->peer_device_addr),
1625 MAC2STR(res->peer_interface_addr),
1626 p2p_wps_method_text(res->wps_method));
1627 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1629 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1630 struct wpa_ssid *ssid;
1631 ssid = wpa_config_get_network(wpa_s->conf,
1632 wpa_s->p2p_persistent_id);
1633 if (ssid && ssid->disabled == 2 &&
1634 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1635 size_t len = os_strlen(ssid->passphrase);
1636 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1637 "on requested persistent group");
1638 os_memcpy(res->passphrase, ssid->passphrase, len);
1639 res->passphrase[len] = '\0';
1643 if (wpa_s->create_p2p_iface) {
1644 struct wpa_supplicant *group_wpa_s =
1645 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1646 if (group_wpa_s == NULL) {
1647 wpas_p2p_remove_pending_group_interface(wpa_s);
1648 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
1650 wpas_p2p_group_formation_failed(wpa_s);
1653 if (group_wpa_s != wpa_s) {
1654 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1655 sizeof(group_wpa_s->p2p_pin));
1656 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1658 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1659 wpa_s->pending_interface_name[0] = '\0';
1660 group_wpa_s->p2p_in_provisioning = 1;
1663 wpas_start_wps_go(group_wpa_s, res, 1);
1665 wpas_start_wps_enrollee(group_wpa_s, res);
1667 wpa_s->p2p_in_provisioning = 1;
1668 wpa_s->global->p2p_group_formation = wpa_s;
1671 wpas_start_wps_go(wpa_s, res, 1);
1673 wpas_start_wps_enrollee(ctx, res);
1676 wpa_s->p2p_long_listen = 0;
1677 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1679 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1680 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1681 (res->peer_config_timeout % 100) * 10000,
1682 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1686 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1688 struct wpa_supplicant *wpa_s = ctx;
1689 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1690 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1692 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1696 static void wpas_dev_found(void *ctx, const u8 *addr,
1697 const struct p2p_peer_info *info,
1700 #ifndef CONFIG_NO_STDOUT_DEBUG
1701 struct wpa_supplicant *wpa_s = ctx;
1702 char devtype[WPS_DEV_TYPE_BUFSIZE];
1703 char *wfd_dev_info_hex = NULL;
1705 #ifdef CONFIG_WIFI_DISPLAY
1706 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1707 WFD_SUBELEM_DEVICE_INFO);
1708 #endif /* CONFIG_WIFI_DISPLAY */
1710 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1711 " p2p_dev_addr=" MACSTR
1712 " pri_dev_type=%s name='%s' config_methods=0x%x "
1713 "dev_capab=0x%x group_capab=0x%x%s%s%s",
1714 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1715 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1717 info->device_name, info->config_methods,
1718 info->dev_capab, info->group_capab,
1719 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
1720 wfd_dev_info_hex ? wfd_dev_info_hex : "",
1721 info->vendor_elems ? " vendor_elems=1" : "");
1723 os_free(wfd_dev_info_hex);
1724 #endif /* CONFIG_NO_STDOUT_DEBUG */
1726 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1730 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1732 struct wpa_supplicant *wpa_s = ctx;
1734 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1735 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1737 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1741 static void wpas_find_stopped(void *ctx)
1743 struct wpa_supplicant *wpa_s = ctx;
1744 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
1748 struct wpas_p2p_listen_work {
1750 unsigned int duration;
1751 struct wpabuf *probe_resp_ie;
1755 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
1759 wpabuf_free(lwork->probe_resp_ie);
1764 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
1766 struct wpas_p2p_listen_work *lwork;
1768 if (!wpa_s->p2p_listen_work)
1771 lwork = wpa_s->p2p_listen_work->ctx;
1772 wpas_p2p_listen_work_free(lwork);
1773 radio_work_done(wpa_s->p2p_listen_work);
1774 wpa_s->p2p_listen_work = NULL;
1778 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
1780 struct wpa_supplicant *wpa_s = work->wpa_s;
1781 struct wpas_p2p_listen_work *lwork = work->ctx;
1784 if (work->started) {
1785 wpa_s->p2p_listen_work = NULL;
1786 wpas_stop_listen(wpa_s);
1788 wpas_p2p_listen_work_free(lwork);
1792 wpa_s->p2p_listen_work = work;
1794 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
1796 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1797 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1798 "report received Probe Request frames");
1799 wpas_p2p_listen_work_done(wpa_s);
1803 wpa_s->pending_listen_freq = lwork->freq;
1804 wpa_s->pending_listen_duration = lwork->duration;
1806 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, lwork->duration) < 0)
1808 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1809 "to remain on channel (%u MHz) for Listen "
1810 "state", lwork->freq);
1811 wpas_p2p_listen_work_done(wpa_s);
1812 wpa_s->pending_listen_freq = 0;
1815 wpa_s->off_channel_freq = 0;
1816 wpa_s->roc_waiting_drv_freq = lwork->freq;
1820 static int wpas_start_listen(void *ctx, unsigned int freq,
1821 unsigned int duration,
1822 const struct wpabuf *probe_resp_ie)
1824 struct wpa_supplicant *wpa_s = ctx;
1825 struct wpas_p2p_listen_work *lwork;
1827 if (wpa_s->p2p_listen_work) {
1828 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
1832 lwork = os_zalloc(sizeof(*lwork));
1836 lwork->duration = duration;
1837 if (probe_resp_ie) {
1838 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
1839 if (lwork->probe_resp_ie == NULL) {
1840 wpas_p2p_listen_work_free(lwork);
1845 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
1847 wpas_p2p_listen_work_free(lwork);
1855 static void wpas_stop_listen(void *ctx)
1857 struct wpa_supplicant *wpa_s = ctx;
1858 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1859 wpa_drv_cancel_remain_on_channel(wpa_s);
1860 wpa_s->off_channel_freq = 0;
1861 wpa_s->roc_waiting_drv_freq = 0;
1863 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1864 wpa_drv_probe_req_report(wpa_s, 0);
1865 wpas_p2p_listen_work_done(wpa_s);
1869 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1871 struct wpa_supplicant *wpa_s = ctx;
1872 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1877 * DNS Header section is used only to calculate compression pointers, so the
1878 * contents of this data does not matter, but the length needs to be reserved
1879 * in the virtual packet.
1881 #define DNS_HEADER_LEN 12
1884 * 27-octet in-memory packet from P2P specification containing two implied
1885 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1887 #define P2P_SD_IN_MEMORY_LEN 27
1889 static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1890 u8 **spos, const u8 *end)
1892 while (*spos < end) {
1893 u8 val = ((*spos)[0] & 0xc0) >> 6;
1896 if (val == 1 || val == 2) {
1897 /* These are reserved values in RFC 1035 */
1898 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1899 "sequence starting with 0x%x", val);
1908 if (*spos + 2 > end) {
1909 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1910 "DNS offset field");
1914 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1915 if (offset >= *spos - start) {
1916 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1917 "pointer offset %u", offset);
1922 spos_tmp = start + offset;
1923 return p2p_sd_dns_uncompress_label(upos, uend, start,
1929 len = (*spos)[0] & 0x3f;
1934 if (*spos + len > end) {
1935 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1936 "sequence - no room for label with length "
1941 if (*upos + len + 2 > uend)
1944 os_memcpy(*upos, *spos, len);
1956 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1957 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1958 * not large enough */
1959 static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1960 size_t msg_len, size_t offset)
1962 /* 27-octet in-memory packet from P2P specification */
1963 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1964 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1965 u8 *tmp, *end, *spos;
1971 if (offset > msg_len)
1974 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1977 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1978 end = spos + msg_len;
1981 os_memset(tmp, 0, DNS_HEADER_LEN);
1982 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1983 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1986 uend = buf + buf_len;
1988 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1997 } else if (upos[-1] == '.')
2005 static struct p2p_srv_bonjour *
2006 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
2007 const struct wpabuf *query)
2009 struct p2p_srv_bonjour *bsrv;
2012 len = wpabuf_len(query);
2013 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2014 struct p2p_srv_bonjour, list) {
2015 if (len == wpabuf_len(bsrv->query) &&
2016 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
2024 static struct p2p_srv_upnp *
2025 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
2026 const char *service)
2028 struct p2p_srv_upnp *usrv;
2030 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2031 struct p2p_srv_upnp, list) {
2032 if (version == usrv->version &&
2033 os_strcmp(service, usrv->service) == 0)
2040 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
2045 if (wpabuf_tailroom(resp) < 5)
2048 /* Length (to be filled) */
2049 len_pos = wpabuf_put(resp, 2);
2050 wpabuf_put_u8(resp, srv_proto);
2051 wpabuf_put_u8(resp, srv_trans_id);
2053 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
2054 /* Response Data: empty */
2055 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2059 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
2060 struct wpabuf *resp, u8 srv_trans_id)
2062 struct p2p_srv_bonjour *bsrv;
2065 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
2067 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2068 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2072 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2073 struct p2p_srv_bonjour, list) {
2074 if (wpabuf_tailroom(resp) <
2075 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
2077 /* Length (to be filled) */
2078 len_pos = wpabuf_put(resp, 2);
2079 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2080 wpabuf_put_u8(resp, srv_trans_id);
2082 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2083 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2084 wpabuf_head(bsrv->resp),
2085 wpabuf_len(bsrv->resp));
2087 wpabuf_put_buf(resp, bsrv->query); /* Key */
2088 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2089 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2095 static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2098 char str_rx[256], str_srv[256];
2100 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2101 return 0; /* Too short to include DNS Type and Version */
2102 if (os_memcmp(query + query_len - 3,
2103 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2105 return 0; /* Mismatch in DNS Type or Version */
2106 if (query_len == wpabuf_len(bsrv->query) &&
2107 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2108 return 1; /* Binary match */
2110 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2112 return 0; /* Failed to uncompress query */
2113 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2114 wpabuf_head(bsrv->query),
2115 wpabuf_len(bsrv->query) - 3, 0))
2116 return 0; /* Failed to uncompress service */
2118 return os_strcmp(str_rx, str_srv) == 0;
2122 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2123 struct wpabuf *resp, u8 srv_trans_id,
2124 const u8 *query, size_t query_len)
2126 struct p2p_srv_bonjour *bsrv;
2130 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2132 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2133 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2134 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2139 if (query_len == 0) {
2140 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2144 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2145 struct p2p_srv_bonjour, list) {
2146 if (!match_bonjour_query(bsrv, query, query_len))
2149 if (wpabuf_tailroom(resp) <
2150 5 + query_len + wpabuf_len(bsrv->resp))
2155 /* Length (to be filled) */
2156 len_pos = wpabuf_put(resp, 2);
2157 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2158 wpabuf_put_u8(resp, srv_trans_id);
2161 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2162 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2163 wpabuf_head(bsrv->resp),
2164 wpabuf_len(bsrv->resp));
2167 wpabuf_put_data(resp, query, query_len); /* Key */
2168 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2170 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2174 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2176 if (wpabuf_tailroom(resp) < 5)
2179 /* Length (to be filled) */
2180 len_pos = wpabuf_put(resp, 2);
2181 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2182 wpabuf_put_u8(resp, srv_trans_id);
2185 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2186 /* Response Data: empty */
2187 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2193 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2194 struct wpabuf *resp, u8 srv_trans_id)
2196 struct p2p_srv_upnp *usrv;
2199 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2201 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2202 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2206 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2207 struct p2p_srv_upnp, list) {
2208 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2211 /* Length (to be filled) */
2212 len_pos = wpabuf_put(resp, 2);
2213 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2214 wpabuf_put_u8(resp, srv_trans_id);
2217 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2219 wpabuf_put_u8(resp, usrv->version);
2220 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2222 wpabuf_put_str(resp, usrv->service);
2223 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2229 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2230 struct wpabuf *resp, u8 srv_trans_id,
2231 const u8 *query, size_t query_len)
2233 struct p2p_srv_upnp *usrv;
2239 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2242 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2243 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2244 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2249 if (query_len == 0) {
2250 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2254 if (wpabuf_tailroom(resp) < 5)
2257 /* Length (to be filled) */
2258 len_pos = wpabuf_put(resp, 2);
2259 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2260 wpabuf_put_u8(resp, srv_trans_id);
2263 str = os_malloc(query_len);
2266 os_memcpy(str, query + 1, query_len - 1);
2267 str[query_len - 1] = '\0';
2269 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2270 struct p2p_srv_upnp, list) {
2271 if (version != usrv->version)
2274 if (os_strcmp(str, "ssdp:all") != 0 &&
2275 os_strstr(usrv->service, str) == NULL)
2278 if (wpabuf_tailroom(resp) < 2)
2282 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2284 wpabuf_put_u8(resp, version);
2286 wpabuf_put_u8(resp, ',');
2290 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2292 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2294 wpabuf_put_str(resp, usrv->service);
2299 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2302 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
2303 /* Response Data: empty */
2306 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2310 #ifdef CONFIG_WIFI_DISPLAY
2311 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2312 struct wpabuf *resp, u8 srv_trans_id,
2313 const u8 *query, size_t query_len)
2319 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2321 if (!wpa_s->global->wifi_display) {
2322 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2323 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2328 if (query_len < 1) {
2329 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2334 if (wpabuf_tailroom(resp) < 5)
2339 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2341 /* TODO: role specific handling */
2343 /* Length (to be filled) */
2344 len_pos = wpabuf_put(resp, 2);
2345 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2346 wpabuf_put_u8(resp, srv_trans_id);
2347 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2349 while (pos < query + query_len) {
2350 if (*pos < MAX_WFD_SUBELEMS &&
2351 wpa_s->global->wfd_subelem[*pos] &&
2352 wpabuf_tailroom(resp) >=
2353 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2354 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2355 "subelement %u", *pos);
2356 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2361 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2363 #endif /* CONFIG_WIFI_DISPLAY */
2366 static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2367 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
2369 struct wpa_supplicant *wpa_s = ctx;
2370 const u8 *pos = tlvs;
2371 const u8 *end = tlvs + tlvs_len;
2374 struct wpabuf *resp;
2375 u8 srv_proto, srv_trans_id;
2379 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2381 buf_len = 2 * tlvs_len + 1;
2382 buf = os_malloc(buf_len);
2384 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2385 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2387 freq, MAC2STR(sa), dialog_token, update_indic,
2392 if (wpa_s->p2p_sd_over_ctrl_iface) {
2393 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2394 update_indic, tlvs, tlvs_len);
2395 return; /* to be processed by an external program */
2398 resp = wpabuf_alloc(10000);
2402 while (pos + 1 < end) {
2403 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2404 slen = WPA_GET_LE16(pos);
2406 if (pos + slen > end || slen < 2) {
2407 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2412 tlv_end = pos + slen;
2415 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2417 srv_trans_id = *pos++;
2418 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2421 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2422 pos, tlv_end - pos);
2425 if (wpa_s->force_long_sd) {
2426 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2428 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2429 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2433 switch (srv_proto) {
2434 case P2P_SERV_ALL_SERVICES:
2435 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2436 "for all services");
2437 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2438 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2439 wpa_printf(MSG_DEBUG, "P2P: No service "
2440 "discovery protocols available");
2441 wpas_sd_add_proto_not_avail(
2442 resp, P2P_SERV_ALL_SERVICES,
2446 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2447 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2449 case P2P_SERV_BONJOUR:
2450 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2451 pos, tlv_end - pos);
2454 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2455 pos, tlv_end - pos);
2457 #ifdef CONFIG_WIFI_DISPLAY
2458 case P2P_SERV_WIFI_DISPLAY:
2459 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2460 pos, tlv_end - pos);
2462 #endif /* CONFIG_WIFI_DISPLAY */
2464 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2465 "protocol %u", srv_proto);
2466 wpas_sd_add_proto_not_avail(resp, srv_proto,
2475 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2476 update_indic, tlvs, tlvs_len);
2478 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2484 static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2485 const u8 *tlvs, size_t tlvs_len)
2487 struct wpa_supplicant *wpa_s = ctx;
2488 const u8 *pos = tlvs;
2489 const u8 *end = tlvs + tlvs_len;
2495 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2497 if (tlvs_len > 1500) {
2498 /* TODO: better way for handling this */
2499 wpa_msg_ctrl(wpa_s, MSG_INFO,
2500 P2P_EVENT_SERV_DISC_RESP MACSTR
2501 " %u <long response: %u bytes>",
2502 MAC2STR(sa), update_indic,
2503 (unsigned int) tlvs_len);
2505 buf_len = 2 * tlvs_len + 1;
2506 buf = os_malloc(buf_len);
2508 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2509 wpa_msg_ctrl(wpa_s, MSG_INFO,
2510 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2511 MAC2STR(sa), update_indic, buf);
2517 u8 srv_proto, srv_trans_id, status;
2519 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2520 slen = WPA_GET_LE16(pos);
2522 if (pos + slen > end || slen < 3) {
2523 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2527 tlv_end = pos + slen;
2530 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2532 srv_trans_id = *pos++;
2533 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2536 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2539 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2540 pos, tlv_end - pos);
2545 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
2549 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2550 const struct wpabuf *tlvs)
2552 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2554 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
2558 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2559 u8 version, const char *query)
2561 struct wpabuf *tlvs;
2564 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2567 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2568 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2569 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2570 wpabuf_put_u8(tlvs, version);
2571 wpabuf_put_str(tlvs, query);
2572 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2578 #ifdef CONFIG_WIFI_DISPLAY
2580 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2581 const struct wpabuf *tlvs)
2583 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2585 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2589 #define MAX_WFD_SD_SUBELEMS 20
2591 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2592 const char *subelems)
2599 len = wpabuf_put(tlvs, 2);
2600 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2601 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2603 wpabuf_put_u8(tlvs, role);
2608 if (val >= 0 && val < 256) {
2609 wpabuf_put_u8(tlvs, val);
2611 if (count == MAX_WFD_SD_SUBELEMS)
2614 pos = os_strchr(pos + 1, ',');
2620 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2624 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2625 const u8 *dst, const char *role)
2627 struct wpabuf *tlvs;
2629 const char *subelems;
2632 subelems = os_strchr(role, ' ');
2633 if (subelems == NULL)
2637 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2641 if (os_strstr(role, "[source]"))
2642 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2643 if (os_strstr(role, "[pri-sink]"))
2644 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2645 if (os_strstr(role, "[sec-sink]"))
2646 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2647 if (os_strstr(role, "[source+sink]"))
2648 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2650 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2655 #endif /* CONFIG_WIFI_DISPLAY */
2658 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
2660 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2662 return p2p_sd_cancel_request(wpa_s->global->p2p,
2663 (void *) (uintptr_t) req);
2667 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2668 const u8 *dst, u8 dialog_token,
2669 const struct wpabuf *resp_tlvs)
2671 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2673 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2678 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2680 if (wpa_s->global->p2p)
2681 p2p_sd_service_update(wpa_s->global->p2p);
2685 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2687 dl_list_del(&bsrv->list);
2688 wpabuf_free(bsrv->query);
2689 wpabuf_free(bsrv->resp);
2694 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2696 dl_list_del(&usrv->list);
2697 os_free(usrv->service);
2702 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2704 struct p2p_srv_bonjour *bsrv, *bn;
2705 struct p2p_srv_upnp *usrv, *un;
2707 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2708 struct p2p_srv_bonjour, list)
2709 wpas_p2p_srv_bonjour_free(bsrv);
2711 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2712 struct p2p_srv_upnp, list)
2713 wpas_p2p_srv_upnp_free(usrv);
2715 wpas_p2p_sd_service_update(wpa_s);
2719 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2720 struct wpabuf *query, struct wpabuf *resp)
2722 struct p2p_srv_bonjour *bsrv;
2724 bsrv = os_zalloc(sizeof(*bsrv));
2727 bsrv->query = query;
2729 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2731 wpas_p2p_sd_service_update(wpa_s);
2736 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2737 const struct wpabuf *query)
2739 struct p2p_srv_bonjour *bsrv;
2741 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2744 wpas_p2p_srv_bonjour_free(bsrv);
2745 wpas_p2p_sd_service_update(wpa_s);
2750 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2751 const char *service)
2753 struct p2p_srv_upnp *usrv;
2755 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2756 return 0; /* Already listed */
2757 usrv = os_zalloc(sizeof(*usrv));
2760 usrv->version = version;
2761 usrv->service = os_strdup(service);
2762 if (usrv->service == NULL) {
2766 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2768 wpas_p2p_sd_service_update(wpa_s);
2773 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2774 const char *service)
2776 struct p2p_srv_upnp *usrv;
2778 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2781 wpas_p2p_srv_upnp_free(usrv);
2782 wpas_p2p_sd_service_update(wpa_s);
2787 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2788 const u8 *peer, const char *params,
2789 unsigned int generated_pin)
2791 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2792 " %08d%s", MAC2STR(peer), generated_pin, params);
2796 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2797 const u8 *peer, const char *params)
2799 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2800 "%s", MAC2STR(peer), params);
2804 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2805 const u8 *dev_addr, const u8 *pri_dev_type,
2806 const char *dev_name, u16 supp_config_methods,
2807 u8 dev_capab, u8 group_capab, const u8 *group_id,
2808 size_t group_id_len)
2810 struct wpa_supplicant *wpa_s = ctx;
2811 char devtype[WPS_DEV_TYPE_BUFSIZE];
2813 u8 empty_dev_type[8];
2814 unsigned int generated_pin = 0;
2815 struct wpa_supplicant *group = NULL;
2818 for (group = wpa_s->global->ifaces; group; group = group->next)
2820 struct wpa_ssid *s = group->current_ssid;
2822 s->mode == WPAS_MODE_P2P_GO &&
2823 group_id_len - ETH_ALEN == s->ssid_len &&
2824 os_memcmp(group_id + ETH_ALEN, s->ssid,
2830 if (pri_dev_type == NULL) {
2831 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2832 pri_dev_type = empty_dev_type;
2834 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2835 " pri_dev_type=%s name='%s' config_methods=0x%x "
2836 "dev_capab=0x%x group_capab=0x%x%s%s",
2838 wps_dev_type_bin2str(pri_dev_type, devtype,
2840 dev_name, supp_config_methods, dev_capab, group_capab,
2841 group ? " group=" : "",
2842 group ? group->ifname : "");
2843 params[sizeof(params) - 1] = '\0';
2845 if (config_methods & WPS_CONFIG_DISPLAY) {
2846 generated_pin = wps_generate_pin();
2847 wpas_prov_disc_local_display(wpa_s, peer, params,
2849 } else if (config_methods & WPS_CONFIG_KEYPAD)
2850 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2851 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2852 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2853 MACSTR "%s", MAC2STR(peer), params);
2855 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2856 P2P_PROV_DISC_SUCCESS,
2857 config_methods, generated_pin);
2861 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2863 struct wpa_supplicant *wpa_s = ctx;
2864 unsigned int generated_pin = 0;
2867 if (wpa_s->pending_pd_before_join &&
2868 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2869 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2870 wpa_s->pending_pd_before_join = 0;
2871 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2872 "join-existing-group operation");
2873 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2877 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2878 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2879 os_snprintf(params, sizeof(params), " peer_go=%d",
2880 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2884 if (config_methods & WPS_CONFIG_DISPLAY)
2885 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2886 else if (config_methods & WPS_CONFIG_KEYPAD) {
2887 generated_pin = wps_generate_pin();
2888 wpas_prov_disc_local_display(wpa_s, peer, params,
2890 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2891 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2892 MACSTR "%s", MAC2STR(peer), params);
2894 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2895 P2P_PROV_DISC_SUCCESS,
2896 config_methods, generated_pin);
2900 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2901 enum p2p_prov_disc_status status)
2903 struct wpa_supplicant *wpa_s = ctx;
2905 if (wpa_s->p2p_fallback_to_go_neg) {
2906 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2907 "failed - fall back to GO Negotiation");
2908 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2912 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2913 wpa_s->pending_pd_before_join = 0;
2914 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2915 "join-existing-group operation (no ACK for PD "
2917 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2921 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2922 " p2p_dev_addr=" MACSTR " status=%d",
2923 MAC2STR(peer), status);
2925 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2930 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2932 if (channels == NULL)
2933 return 1; /* Assume no restrictions */
2934 return p2p_channels_includes_freq(channels, freq);
2940 * Pick the best frequency to use from all the currently used frequencies.
2942 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2943 struct wpa_used_freq_data *freqs,
2948 /* find a candidate freq that is supported by P2P */
2949 for (c = 0; c < num; c++)
2950 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2956 /* once we have a candidate, try to find a 'better' one */
2957 for (i = c + 1; i < num; i++) {
2958 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2962 * 1. Infrastructure station interfaces have higher preference.
2963 * 2. P2P Clients have higher preference.
2966 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2971 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2974 return freqs[c].freq;
2978 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2979 const u8 *go_dev_addr, const u8 *ssid,
2980 size_t ssid_len, int *go, u8 *group_bssid,
2981 int *force_freq, int persistent_group,
2982 const struct p2p_channels *channels,
2985 struct wpa_supplicant *wpa_s = ctx;
2987 struct wpa_used_freq_data *freqs;
2988 struct wpa_supplicant *grp;
2991 if (!persistent_group) {
2992 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2993 " to join an active group (SSID: %s)",
2994 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2995 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2996 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2998 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2999 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
3000 "authorized invitation");
3004 #ifdef CONFIG_WPS_NFC
3005 if (dev_pw_id >= 0 && wpa_s->parent->p2p_nfc_tag_enabled &&
3006 dev_pw_id == wpa_s->parent->p2p_oob_dev_pw_id) {
3007 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
3008 wpa_s->parent->p2p_wps_method = WPS_NFC;
3009 wpa_s->parent->pending_join_wps_method = WPS_NFC;
3010 os_memcpy(wpa_s->parent->pending_join_dev_addr,
3011 go_dev_addr, ETH_ALEN);
3012 os_memcpy(wpa_s->parent->pending_join_iface_addr,
3016 #endif /* CONFIG_WPS_NFC */
3019 * Do not accept the invitation automatically; notify user and
3022 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3025 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
3027 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
3028 "running persistent group");
3030 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
3034 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3035 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
3036 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
3037 "invitation to re-invoke a persistent group");
3038 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
3039 } else if (!wpa_s->conf->persistent_reconnect)
3040 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3042 for (s = wpa_s->conf->ssid; s; s = s->next) {
3043 if (s->disabled == 2 &&
3044 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
3045 s->ssid_len == ssid_len &&
3046 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3051 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3052 " requested reinvocation of an unknown group",
3054 return P2P_SC_FAIL_UNKNOWN_GROUP;
3057 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
3059 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3060 wpa_printf(MSG_DEBUG, "P2P: The only available "
3061 "interface is already in use - reject "
3063 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3065 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
3066 } else if (s->mode == WPAS_MODE_P2P_GO) {
3068 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
3070 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3071 "interface address for the group");
3072 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3074 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
3079 wpas_p2p_set_own_freq_preference(wpa_s, 0);
3082 freqs = os_calloc(wpa_s->num_multichan_concurrent,
3083 sizeof(struct wpa_used_freq_data));
3085 int num_channels = wpa_s->num_multichan_concurrent;
3086 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
3087 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
3091 /* Get one of the frequencies currently in use */
3092 if (best_freq > 0) {
3093 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
3094 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
3096 if (wpa_s->num_multichan_concurrent < 2 ||
3097 wpas_p2p_num_unused_channels(wpa_s) < 1) {
3098 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
3099 *force_freq = best_freq;
3103 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
3104 wpas_p2p_num_unused_channels(wpa_s) > 0) {
3106 /* We are the client */
3107 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
3108 "running a GO but we are capable of MCC, "
3109 "figure out the best channel to use");
3111 } else if (!freq_included(channels, *force_freq)) {
3112 /* We are the GO, and *force_freq is not in the
3114 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3115 "in intersection but we are capable of MCC, "
3116 "figure out the best channel to use",
3122 return P2P_SC_SUCCESS;
3126 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3127 const u8 *ssid, size_t ssid_len,
3128 const u8 *go_dev_addr, u8 status,
3131 struct wpa_supplicant *wpa_s = ctx;
3134 for (s = wpa_s->conf->ssid; s; s = s->next) {
3135 if (s->disabled == 2 &&
3136 s->ssid_len == ssid_len &&
3137 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3141 if (status == P2P_SC_SUCCESS) {
3142 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3143 " was accepted; op_freq=%d MHz, SSID=%s",
3144 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3146 int go = s->mode == WPAS_MODE_P2P_GO;
3147 wpas_p2p_group_add_persistent(
3148 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
3149 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3151 wpa_s->user_initiated_pd = 0;
3152 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3153 wpa_s->p2p_wps_method, 0, op_freq,
3159 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3160 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3161 " was rejected (status %u)", MAC2STR(sa), status);
3167 wpa_msg_global(wpa_s, MSG_INFO,
3168 P2P_EVENT_INVITATION_RECEIVED
3169 "sa=" MACSTR " go_dev_addr=" MACSTR
3170 " bssid=" MACSTR " unknown-network",
3171 MAC2STR(sa), MAC2STR(go_dev_addr),
3174 wpa_msg_global(wpa_s, MSG_INFO,
3175 P2P_EVENT_INVITATION_RECEIVED
3176 "sa=" MACSTR " go_dev_addr=" MACSTR
3178 MAC2STR(sa), MAC2STR(go_dev_addr));
3183 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3184 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3185 "sa=" MACSTR " persistent=%d freq=%d",
3186 MAC2STR(sa), s->id, op_freq);
3188 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3189 "sa=" MACSTR " persistent=%d",
3190 MAC2STR(sa), s->id);
3195 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3196 struct wpa_ssid *ssid,
3197 const u8 *peer, int inv)
3204 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3205 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
3209 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3210 if (ssid->mode != WPAS_MODE_P2P_GO &&
3211 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3212 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3213 "due to invitation result", ssid->id);
3214 wpas_notify_network_removed(wpa_s, ssid);
3215 wpa_config_remove_network(wpa_s->conf, ssid->id);
3218 return; /* Peer not found in client list */
3221 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3222 "group %d client list%s",
3223 MAC2STR(peer), ssid->id,
3224 inv ? " due to invitation result" : "");
3225 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
3226 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
3227 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
3228 ssid->num_p2p_clients--;
3229 if (wpa_s->parent->conf->update_config &&
3230 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
3231 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3235 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3238 struct wpa_ssid *ssid;
3240 wpa_s = wpa_s->global->p2p_invite_group;
3242 return; /* No known invitation group */
3243 ssid = wpa_s->current_ssid;
3244 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3245 !ssid->p2p_persistent_group)
3246 return; /* Not operating as a GO in persistent group */
3247 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3248 ssid->ssid, ssid->ssid_len);
3249 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3253 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3254 const struct p2p_channels *channels,
3255 const u8 *peer, int neg_freq,
3258 struct wpa_supplicant *wpa_s = ctx;
3259 struct wpa_ssid *ssid;
3263 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3264 "status=%d " MACSTR,
3265 status, MAC2STR(bssid));
3267 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3268 "status=%d ", status);
3270 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3272 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3273 status, MAC2STR(peer));
3274 if (wpa_s->pending_invite_ssid_id == -1) {
3275 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3276 wpas_remove_persistent_client(wpa_s, peer);
3277 return; /* Invitation to active group */
3280 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3281 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3282 "invitation exchange to indicate readiness for "
3286 if (status != P2P_SC_SUCCESS) {
3287 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3288 ssid = wpa_config_get_network(
3289 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3290 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3292 wpas_p2p_remove_pending_group_interface(wpa_s);
3296 ssid = wpa_config_get_network(wpa_s->conf,
3297 wpa_s->pending_invite_ssid_id);
3299 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3300 "data matching with invitation");
3305 * The peer could have missed our ctrl::ack frame for Invitation
3306 * Response and continue retransmitting the frame. To reduce the
3307 * likelihood of the peer not getting successful TX status for the
3308 * Invitation Response frame, wait a short time here before starting
3309 * the persistent group so that we will remain on the current channel to
3310 * acknowledge any possible retransmission from the peer.
3312 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3313 "starting persistent group");
3316 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3317 freq_included(channels, neg_freq))
3319 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3320 freq_included(channels, peer_oper_freq))
3321 freq = peer_oper_freq;
3325 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3326 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3327 wpas_p2p_group_add_persistent(wpa_s, ssid,
3328 ssid->mode == WPAS_MODE_P2P_GO,
3329 wpa_s->p2p_persistent_go_freq,
3331 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3333 ssid->mode == WPAS_MODE_P2P_GO ?
3334 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3339 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3342 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3344 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3348 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3350 reg->channel[reg->channels] = chan;
3355 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3356 struct p2p_channels *chan,
3357 struct p2p_channels *cli_chan)
3361 os_memset(cli_chan, 0, sizeof(*cli_chan));
3363 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3366 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3367 chan->reg_class[cla].reg_class = 81;
3368 chan->reg_class[cla].channels = 0;
3369 for (i = 0; i < 11; i++) {
3370 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3371 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3373 if (chan->reg_class[cla].channels)
3376 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3379 /* Operating class 115 - 5 GHz, channels 36-48 */
3380 chan->reg_class[cla].reg_class = 115;
3381 chan->reg_class[cla].channels = 0;
3382 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3383 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3384 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3385 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3386 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3387 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3388 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3389 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3390 if (chan->reg_class[cla].channels)
3393 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3396 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3397 chan->reg_class[cla].reg_class = 124;
3398 chan->reg_class[cla].channels = 0;
3399 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3400 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3401 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3402 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3403 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3404 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3405 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3406 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3407 if (chan->reg_class[cla].channels)
3410 chan->reg_classes = cla;
3415 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3417 enum hostapd_hw_mode mode)
3421 for (i = 0; i < num_modes; i++) {
3422 if (modes[i].mode == mode)
3431 NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
3434 static int has_channel(struct wpa_global *global,
3435 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3440 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3442 if (wpas_p2p_disallowed_freq(global, freq))
3445 for (i = 0; i < mode->num_channels; i++) {
3446 if (mode->channels[i].chan == chan) {
3448 *flags = mode->channels[i].flag;
3449 if (mode->channels[i].flag &
3450 (HOSTAPD_CHAN_DISABLED |
3451 HOSTAPD_CHAN_RADAR))
3453 if (mode->channels[i].flag &
3454 (HOSTAPD_CHAN_PASSIVE_SCAN |
3455 HOSTAPD_CHAN_NO_IBSS))
3456 return PASSIVE_ONLY;
3465 struct p2p_oper_class_map {
3466 enum hostapd_hw_mode mode;
3471 enum { BW20, BW40PLUS, BW40MINUS, BW80 } bw;
3474 static struct p2p_oper_class_map op_class[] = {
3475 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3476 #if 0 /* Do not enable HT40 on 2 GHz for now */
3477 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3478 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3480 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3481 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3482 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3483 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3484 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3485 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3488 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3489 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3490 * 80 MHz, but currently use the following definition for simplicity
3491 * (these center frequencies are not actual channels, which makes
3492 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3493 * removing invalid channels.
3495 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3496 { -1, 0, 0, 0, 0, BW20 }
3500 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3501 struct hostapd_hw_modes *mode,
3504 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3507 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3510 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3512 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3513 * so the center channel is 6 channels away from the start/end.
3515 if (channel >= center_channels[i] - 6 &&
3516 channel <= center_channels[i] + 6)
3517 return center_channels[i];
3523 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3524 struct hostapd_hw_modes *mode,
3529 enum chan_allowed res, ret = ALLOWED;
3531 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3534 if (center_chan >= 58 && center_chan <= 138)
3535 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3537 /* check all the channels are available */
3538 for (i = 0; i < 4; i++) {
3539 int adj_chan = center_chan - 6 + i * 4;
3541 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3542 if (res == NOT_ALLOWED)
3544 if (res == PASSIVE_ONLY)
3547 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3549 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3551 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3553 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3561 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3562 struct hostapd_hw_modes *mode,
3566 enum chan_allowed res, res2;
3568 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3569 if (bw == BW40MINUS) {
3570 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3572 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3573 } else if (bw == BW40PLUS) {
3574 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3576 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3577 } else if (bw == BW80) {
3578 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3581 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3583 if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
3584 return PASSIVE_ONLY;
3589 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3590 struct p2p_channels *chan,
3591 struct p2p_channels *cli_chan)
3593 struct hostapd_hw_modes *mode;
3594 int cla, op, cli_cla;
3596 if (wpa_s->hw.modes == NULL) {
3597 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3598 "of all supported channels; assume dualband "
3600 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3605 for (op = 0; op_class[op].op_class; op++) {
3606 struct p2p_oper_class_map *o = &op_class[op];
3608 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3610 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3613 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3614 enum chan_allowed res;
3615 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3616 if (res == ALLOWED) {
3618 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3620 reg = &chan->reg_class[cla];
3622 reg->reg_class = o->op_class;
3624 reg->channel[reg->channels] = ch;
3626 } else if (res == PASSIVE_ONLY &&
3627 wpa_s->conf->p2p_add_cli_chan) {
3628 if (cli_reg == NULL) {
3629 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3631 cli_reg = &cli_chan->reg_class[cli_cla];
3633 cli_reg->reg_class = o->op_class;
3635 cli_reg->channel[cli_reg->channels] = ch;
3636 cli_reg->channels++;
3640 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3641 reg->channel, reg->channels);
3644 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3645 cli_reg->channel, cli_reg->channels);
3649 chan->reg_classes = cla;
3650 cli_chan->reg_classes = cli_cla;
3656 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3657 struct hostapd_hw_modes *mode, u8 channel)
3660 enum chan_allowed ret;
3662 for (op = 0; op_class[op].op_class; op++) {
3663 struct p2p_oper_class_map *o = &op_class[op];
3666 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3667 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3668 o->bw == BW20 || ch != channel)
3670 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3672 return (o->bw == BW40MINUS) ? -1 : 1;
3679 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3680 struct hostapd_hw_modes *mode, u8 channel)
3682 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3685 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3689 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3692 struct wpa_supplicant *wpa_s = ctx;
3694 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3695 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3701 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3705 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3706 const u8 *ssid, size_t ssid_len)
3708 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3709 struct wpa_ssid *s = wpa_s->current_ssid;
3712 if (s->mode != WPAS_MODE_P2P_GO &&
3713 s->mode != WPAS_MODE_AP &&
3714 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3716 if (s->ssid_len != ssid_len ||
3717 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3727 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3728 const u8 *peer_dev_addr)
3730 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3731 struct wpa_ssid *ssid = wpa_s->current_ssid;
3734 if (ssid->mode != WPAS_MODE_INFRA)
3736 if (wpa_s->wpa_state != WPA_COMPLETED &&
3737 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3739 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3747 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3749 struct wpa_supplicant *wpa_s = ctx;
3751 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3755 static int wpas_is_concurrent_session_active(void *ctx)
3757 struct wpa_supplicant *wpa_s = ctx;
3758 struct wpa_supplicant *ifs;
3760 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3763 if (ifs->wpa_state > WPA_ASSOCIATED)
3770 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3772 struct wpa_supplicant *wpa_s = ctx;
3773 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3777 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s)
3779 struct wpa_interface iface;
3780 struct wpa_supplicant *p2pdev_wpa_s;
3782 char force_name[100];
3785 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3787 force_name[0] = '\0';
3788 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3789 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3790 force_name, wpa_s->pending_interface_addr, NULL);
3792 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3795 os_strlcpy(wpa_s->pending_interface_name, ifname,
3796 sizeof(wpa_s->pending_interface_name));
3798 os_memset(&iface, 0, sizeof(iface));
3800 iface.ifname = wpa_s->pending_interface_name;
3801 iface.driver = wpa_s->driver->name;
3802 iface.driver_param = wpa_s->conf->driver_param;
3805 * If a P2P Device configuration file was given, use it as the interface
3806 * configuration file (instead of using parent's configuration file.
3808 if (wpa_s->conf_p2p_dev) {
3809 iface.confname = wpa_s->conf_p2p_dev;
3810 iface.ctrl_interface = NULL;
3812 iface.confname = wpa_s->confname;
3813 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3815 iface.conf_p2p_dev = NULL;
3817 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3818 if (!p2pdev_wpa_s) {
3819 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3822 p2pdev_wpa_s->parent = wpa_s;
3824 wpa_s->pending_interface_name[0] = '\0';
3829 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3830 const u8 *noa, size_t noa_len)
3832 struct wpa_supplicant *wpa_s, *intf = ctx;
3835 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3836 if (wpa_s->waiting_presence_resp)
3840 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3843 wpa_s->waiting_presence_resp = 0;
3845 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3846 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3847 " status=%u noa=%s", MAC2STR(src), status, hex);
3851 static int _wpas_p2p_in_progress(void *ctx)
3853 struct wpa_supplicant *wpa_s = ctx;
3854 return wpas_p2p_in_progress(wpa_s);
3859 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3860 * @global: Pointer to global data from wpa_supplicant_init()
3861 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3862 * Returns: 0 on success, -1 on failure
3864 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3866 struct p2p_config p2p;
3870 if (wpa_s->conf->p2p_disabled)
3873 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3879 os_memset(&p2p, 0, sizeof(p2p));
3881 p2p.debug_print = wpas_p2p_debug_print;
3882 p2p.p2p_scan = wpas_p2p_scan;
3883 p2p.send_action = wpas_send_action;
3884 p2p.send_action_done = wpas_send_action_done;
3885 p2p.go_neg_completed = wpas_go_neg_completed;
3886 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3887 p2p.dev_found = wpas_dev_found;
3888 p2p.dev_lost = wpas_dev_lost;
3889 p2p.find_stopped = wpas_find_stopped;
3890 p2p.start_listen = wpas_start_listen;
3891 p2p.stop_listen = wpas_stop_listen;
3892 p2p.send_probe_resp = wpas_send_probe_resp;
3893 p2p.sd_request = wpas_sd_request;
3894 p2p.sd_response = wpas_sd_response;
3895 p2p.prov_disc_req = wpas_prov_disc_req;
3896 p2p.prov_disc_resp = wpas_prov_disc_resp;
3897 p2p.prov_disc_fail = wpas_prov_disc_fail;
3898 p2p.invitation_process = wpas_invitation_process;
3899 p2p.invitation_received = wpas_invitation_received;
3900 p2p.invitation_result = wpas_invitation_result;
3901 p2p.get_noa = wpas_get_noa;
3902 p2p.go_connected = wpas_go_connected;
3903 p2p.presence_resp = wpas_presence_resp;
3904 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
3905 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
3907 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
3908 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
3909 p2p.dev_name = wpa_s->conf->device_name;
3910 p2p.manufacturer = wpa_s->conf->manufacturer;
3911 p2p.model_name = wpa_s->conf->model_name;
3912 p2p.model_number = wpa_s->conf->model_number;
3913 p2p.serial_number = wpa_s->conf->serial_number;
3915 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3916 p2p.config_methods = wpa_s->wps->config_methods;
3919 if (wpa_s->conf->p2p_listen_reg_class &&
3920 wpa_s->conf->p2p_listen_channel) {
3921 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3922 p2p.channel = wpa_s->conf->p2p_listen_channel;
3923 p2p.channel_forced = 1;
3927 * Pick one of the social channels randomly as the listen
3930 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3932 p2p.channel = 1 + (r % 3) * 5;
3933 p2p.channel_forced = 0;
3935 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
3937 if (wpa_s->conf->p2p_oper_reg_class &&
3938 wpa_s->conf->p2p_oper_channel) {
3939 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3940 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
3941 p2p.cfg_op_channel = 1;
3942 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3943 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3946 p2p.op_reg_class = 81;
3948 * Use random operation channel from (1, 6, 11) if no other
3949 * preference is indicated.
3951 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3953 p2p.op_channel = 1 + (r % 3) * 5;
3954 p2p.cfg_op_channel = 0;
3955 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3956 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3959 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3960 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3961 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3964 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3965 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3966 p2p.country[2] = 0x04;
3968 os_memcpy(p2p.country, "XX\x04", 3);
3970 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
3971 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
3976 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3979 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3980 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3981 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
3983 p2p.concurrent_operations = !!(wpa_s->drv_flags &
3984 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3986 p2p.max_peers = 100;
3988 if (wpa_s->conf->p2p_ssid_postfix) {
3989 p2p.ssid_postfix_len =
3990 os_strlen(wpa_s->conf->p2p_ssid_postfix);
3991 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3992 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3993 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3994 p2p.ssid_postfix_len);
3997 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
3999 p2p.max_listen = wpa_s->max_remain_on_chan;
4001 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4002 wpa_s->conf->p2p_passphrase_len <= 63)
4003 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4005 p2p.passphrase_len = 8;
4007 global->p2p = p2p_init(&p2p);
4008 if (global->p2p == NULL)
4010 global->p2p_init_wpa_s = wpa_s;
4012 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4013 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4015 p2p_add_wps_vendor_extension(
4016 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4019 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4026 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4027 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4029 * This function deinitialize per-interface P2P data.
4031 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4033 if (wpa_s->driver && wpa_s->drv_priv)
4034 wpa_drv_probe_req_report(wpa_s, 0);
4036 if (wpa_s->go_params) {
4037 /* Clear any stored provisioning info */
4038 p2p_clear_provisioning_info(
4040 wpa_s->go_params->peer_device_addr);
4043 os_free(wpa_s->go_params);
4044 wpa_s->go_params = NULL;
4045 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4046 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4047 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4048 wpa_s->p2p_long_listen = 0;
4049 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4050 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4051 wpas_p2p_remove_pending_group_interface(wpa_s);
4052 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4053 wpas_p2p_listen_work_done(wpa_s);
4054 if (wpa_s->p2p_send_action_work) {
4055 os_free(wpa_s->p2p_send_action_work->ctx);
4056 radio_work_done(wpa_s->p2p_send_action_work);
4057 wpa_s->p2p_send_action_work = NULL;
4059 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4061 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4062 wpa_s->p2p_oob_dev_pw = NULL;
4064 /* TODO: remove group interface from the driver if this wpa_s instance
4065 * is on top of a P2P group interface */
4070 * wpas_p2p_deinit_global - Deinitialize global P2P module
4071 * @global: Pointer to global data from wpa_supplicant_init()
4073 * This function deinitializes the global (per device) P2P module.
4075 static void wpas_p2p_deinit_global(struct wpa_global *global)
4077 struct wpa_supplicant *wpa_s, *tmp;
4079 wpa_s = global->ifaces;
4081 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4083 /* Remove remaining P2P group interfaces */
4084 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4085 wpa_s = wpa_s->next;
4087 tmp = global->ifaces;
4090 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4095 /* Disconnect from the P2P group and deinit the interface */
4096 wpas_p2p_disconnect(tmp);
4100 * Deinit GO data on any possibly remaining interface (if main
4101 * interface is used as GO).
4103 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4104 if (wpa_s->ap_iface)
4105 wpas_p2p_group_deinit(wpa_s);
4108 p2p_deinit(global->p2p);
4110 global->p2p_init_wpa_s = NULL;
4114 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4116 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4117 wpa_s->conf->p2p_no_group_iface)
4118 return 0; /* separate interface disabled per configuration */
4119 if (wpa_s->drv_flags &
4120 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4121 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4122 return 1; /* P2P group requires a new interface in every case
4124 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4125 return 0; /* driver does not support concurrent operations */
4126 if (wpa_s->global->ifaces->next)
4127 return 1; /* more that one interface already in use */
4128 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4129 return 1; /* this interface is already in use */
4134 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4135 const u8 *peer_addr,
4136 enum p2p_wps_method wps_method,
4137 int go_intent, const u8 *own_interface_addr,
4138 unsigned int force_freq, int persistent_group,
4139 struct wpa_ssid *ssid, unsigned int pref_freq)
4141 if (persistent_group && wpa_s->conf->persistent_reconnect)
4142 persistent_group = 2;
4145 * Increase GO config timeout if HT40 is used since it takes some time
4146 * to scan channels for coex purposes before the BSS can be started.
4148 p2p_set_config_timeout(wpa_s->global->p2p,
4149 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4151 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4152 go_intent, own_interface_addr, force_freq,
4153 persistent_group, ssid ? ssid->ssid : NULL,
4154 ssid ? ssid->ssid_len : 0,
4155 wpa_s->p2p_pd_before_go_neg, pref_freq,
4156 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4161 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4162 const u8 *peer_addr,
4163 enum p2p_wps_method wps_method,
4164 int go_intent, const u8 *own_interface_addr,
4165 unsigned int force_freq, int persistent_group,
4166 struct wpa_ssid *ssid, unsigned int pref_freq)
4168 if (persistent_group && wpa_s->conf->persistent_reconnect)
4169 persistent_group = 2;
4171 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4172 go_intent, own_interface_addr, force_freq,
4173 persistent_group, ssid ? ssid->ssid : NULL,
4174 ssid ? ssid->ssid_len : 0, pref_freq,
4175 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4180 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4182 wpa_s->p2p_join_scan_count++;
4183 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4184 wpa_s->p2p_join_scan_count);
4185 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4186 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4187 " for join operationg - stop join attempt",
4188 MAC2STR(wpa_s->pending_join_iface_addr));
4189 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4190 if (wpa_s->p2p_auto_pd) {
4191 wpa_s->p2p_auto_pd = 0;
4192 wpa_msg_global(wpa_s, MSG_INFO,
4193 P2P_EVENT_PROV_DISC_FAILURE
4194 " p2p_dev_addr=" MACSTR " status=N/A",
4195 MAC2STR(wpa_s->pending_join_dev_addr));
4198 wpa_msg_global(wpa_s->parent, MSG_INFO,
4199 P2P_EVENT_GROUP_FORMATION_FAILURE);
4204 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4207 unsigned int num, i;
4208 struct wpa_used_freq_data *freqs;
4210 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4211 /* Multiple channels are supported and not all are in use */
4215 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4216 sizeof(struct wpa_used_freq_data));
4220 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4221 wpa_s->num_multichan_concurrent);
4223 for (i = 0; i < num; i++) {
4224 if (freqs[i].freq == freq) {
4225 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4232 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4241 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4242 const u8 *peer_dev_addr)
4244 struct wpa_bss *bss;
4247 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4250 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4251 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4256 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4258 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4259 "%ld.%06ld (%supdated in last scan)",
4260 bss->last_update.sec, bss->last_update.usec,
4261 updated ? "": "not ");
4267 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4268 struct wpa_scan_results *scan_res)
4270 struct wpa_bss *bss = NULL;
4272 u8 iface_addr[ETH_ALEN];
4274 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4276 if (wpa_s->global->p2p_disabled)
4279 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4280 scan_res ? (int) scan_res->num : -1,
4281 wpa_s->p2p_auto_join ? "auto_" : "");
4284 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4286 if (wpa_s->p2p_auto_pd) {
4287 int join = wpas_p2p_peer_go(wpa_s,
4288 wpa_s->pending_join_dev_addr);
4290 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4291 wpa_s->auto_pd_scan_retry++;
4292 bss = wpa_bss_get_bssid_latest(
4293 wpa_s, wpa_s->pending_join_dev_addr);
4296 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4297 "the peer " MACSTR " at %d MHz",
4298 wpa_s->auto_pd_scan_retry,
4300 pending_join_dev_addr),
4302 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4310 wpa_s->p2p_auto_pd = 0;
4311 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4312 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4313 MAC2STR(wpa_s->pending_join_dev_addr), join);
4314 if (p2p_prov_disc_req(wpa_s->global->p2p,
4315 wpa_s->pending_join_dev_addr,
4316 wpa_s->pending_pd_config_methods, join,
4317 0, wpa_s->user_initiated_pd) < 0) {
4318 wpa_s->p2p_auto_pd = 0;
4319 wpa_msg_global(wpa_s, MSG_INFO,
4320 P2P_EVENT_PROV_DISC_FAILURE
4321 " p2p_dev_addr=" MACSTR " status=N/A",
4322 MAC2STR(wpa_s->pending_join_dev_addr));
4327 if (wpa_s->p2p_auto_join) {
4328 int join = wpas_p2p_peer_go(wpa_s,
4329 wpa_s->pending_join_dev_addr);
4331 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4332 "running a GO -> use GO Negotiation");
4333 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4334 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4335 wpa_s->p2p_persistent_group, 0, 0, 0,
4336 wpa_s->p2p_go_intent,
4337 wpa_s->p2p_connect_freq,
4338 wpa_s->p2p_persistent_id,
4339 wpa_s->p2p_pd_before_go_neg,
4345 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4346 "try to join the group", join ? "" :
4349 wpa_s->p2p_fallback_to_go_neg = 1;
4352 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4353 wpa_s->pending_join_iface_addr);
4355 p2p_get_interface_addr(wpa_s->global->p2p,
4356 wpa_s->pending_join_dev_addr,
4358 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4359 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4360 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4361 "address for join from " MACSTR " to " MACSTR
4362 " based on newly discovered P2P peer entry",
4363 MAC2STR(wpa_s->pending_join_iface_addr),
4364 MAC2STR(iface_addr));
4365 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4368 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4369 wpa_s->pending_join_iface_addr);
4372 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4373 "from P2P peer table: %d MHz", freq);
4375 if (wpa_s->p2p_join_ssid_len) {
4376 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4377 MACSTR " and SSID %s",
4378 MAC2STR(wpa_s->pending_join_iface_addr),
4379 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4380 wpa_s->p2p_join_ssid_len));
4381 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4382 wpa_s->p2p_join_ssid,
4383 wpa_s->p2p_join_ssid_len);
4386 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4387 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4388 bss = wpa_bss_get_bssid_latest(wpa_s,
4389 wpa_s->pending_join_iface_addr);
4393 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4394 "from BSS table: %d MHz (SSID %s)", freq,
4395 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4400 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4401 wpa_msg_global(wpa_s->parent, MSG_INFO,
4402 P2P_EVENT_GROUP_FORMATION_FAILURE
4403 "reason=FREQ_CONFLICT");
4407 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4408 "prior to joining an existing group (GO " MACSTR
4410 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4411 wpa_s->pending_pd_before_join = 1;
4413 switch (wpa_s->pending_join_wps_method) {
4414 case WPS_PIN_DISPLAY:
4415 method = WPS_CONFIG_KEYPAD;
4417 case WPS_PIN_KEYPAD:
4418 method = WPS_CONFIG_DISPLAY;
4421 method = WPS_CONFIG_PUSHBUTTON;
4428 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4429 wpa_s->pending_join_dev_addr) ==
4432 * We have already performed provision discovery for
4433 * joining the group. Proceed directly to join
4434 * operation without duplicated provision discovery. */
4435 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4436 "with " MACSTR " already done - proceed to "
4438 MAC2STR(wpa_s->pending_join_dev_addr));
4439 wpa_s->pending_pd_before_join = 0;
4443 if (p2p_prov_disc_req(wpa_s->global->p2p,
4444 wpa_s->pending_join_dev_addr, method, 1,
4445 freq, wpa_s->user_initiated_pd) < 0) {
4446 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4447 "Discovery Request before joining an "
4449 wpa_s->pending_pd_before_join = 0;
4455 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4456 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4457 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4458 wpas_p2p_check_join_scan_limit(wpa_s);
4462 /* Start join operation immediately */
4463 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4467 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4468 const u8 *ssid, size_t ssid_len)
4471 struct wpa_driver_scan_params params;
4472 struct wpabuf *wps_ie, *ies;
4474 int freqs[2] = { 0, 0 };
4476 os_memset(¶ms, 0, sizeof(params));
4478 /* P2P Wildcard SSID */
4479 params.num_ssids = 1;
4480 if (ssid && ssid_len) {
4481 params.ssids[0].ssid = ssid;
4482 params.ssids[0].ssid_len = ssid_len;
4483 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4484 wpa_s->p2p_join_ssid_len = ssid_len;
4486 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4487 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4488 wpa_s->p2p_join_ssid_len = 0;
4491 wpa_s->wps->dev.p2p = 1;
4492 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4493 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4495 if (wps_ie == NULL) {
4496 wpas_p2p_scan_res_join(wpa_s, NULL);
4500 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4501 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4503 wpabuf_free(wps_ie);
4504 wpas_p2p_scan_res_join(wpa_s, NULL);
4507 wpabuf_put_buf(ies, wps_ie);
4508 wpabuf_free(wps_ie);
4510 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4512 params.p2p_probe = 1;
4513 params.extra_ies = wpabuf_head(ies);
4514 params.extra_ies_len = wpabuf_len(ies);
4519 * If freq is not provided, check the operating freq of the GO
4520 * and use a single channel scan on if possible.
4522 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4523 wpa_s->pending_join_iface_addr);
4529 params.freqs = freqs;
4533 * Run a scan to update BSS table and start Provision Discovery once
4534 * the new scan results become available.
4536 ret = wpa_drv_scan(wpa_s, ¶ms);
4538 os_get_reltime(&wpa_s->scan_trigger_time);
4539 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4540 wpa_s->own_scan_requested = 1;
4546 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4548 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4549 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4550 wpas_p2p_check_join_scan_limit(wpa_s);
4555 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4557 struct wpa_supplicant *wpa_s = eloop_ctx;
4558 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4562 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4563 const u8 *dev_addr, enum p2p_wps_method wps_method,
4564 int auto_join, int op_freq,
4565 const u8 *ssid, size_t ssid_len)
4567 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4568 MACSTR " dev " MACSTR " op_freq=%d)%s",
4569 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4570 auto_join ? " (auto_join)" : "");
4571 if (ssid && ssid_len) {
4572 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4573 wpa_ssid_txt(ssid, ssid_len));
4576 wpa_s->p2p_auto_pd = 0;
4577 wpa_s->p2p_auto_join = !!auto_join;
4578 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4579 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4580 wpa_s->pending_join_wps_method = wps_method;
4582 /* Make sure we are not running find during connection establishment */
4583 wpas_p2p_stop_find(wpa_s);
4585 wpa_s->p2p_join_scan_count = 0;
4586 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4591 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4592 const u8 *ssid, size_t ssid_len)
4594 struct wpa_supplicant *group;
4595 struct p2p_go_neg_results res;
4596 struct wpa_bss *bss;
4598 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4601 if (group != wpa_s) {
4602 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4603 sizeof(group->p2p_pin));
4604 group->p2p_wps_method = wpa_s->p2p_wps_method;
4607 * Need to mark the current interface for p2p_group_formation
4608 * when a separate group interface is not used. This is needed
4609 * to allow p2p_cancel stop a pending p2p_connect-join.
4610 * wpas_p2p_init_group_interface() addresses this for the case
4611 * where a separate group interface is used.
4613 wpa_s->global->p2p_group_formation = wpa_s;
4616 group->p2p_in_provisioning = 1;
4617 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4619 os_memset(&res, 0, sizeof(res));
4620 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4621 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4623 res.wps_method = wpa_s->pending_join_wps_method;
4624 if (freq && ssid && ssid_len) {
4626 res.ssid_len = ssid_len;
4627 os_memcpy(res.ssid, ssid, ssid_len);
4629 bss = wpa_bss_get_bssid_latest(wpa_s,
4630 wpa_s->pending_join_iface_addr);
4632 res.freq = bss->freq;
4633 res.ssid_len = bss->ssid_len;
4634 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4635 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4637 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4641 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4642 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4644 wpa_drv_cancel_remain_on_channel(wpa_s);
4645 wpa_s->off_channel_freq = 0;
4646 wpa_s->roc_waiting_drv_freq = 0;
4648 wpas_start_wps_enrollee(group, &res);
4651 * Allow a longer timeout for join-a-running-group than normal 15
4652 * second group formation timeout since the GO may not have authorized
4653 * our connection yet.
4655 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4656 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4663 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4664 int *force_freq, int *pref_freq, int go)
4666 struct wpa_used_freq_data *freqs;
4667 int res, best_freq, num_unused;
4668 unsigned int freq_in_use = 0, num, i;
4670 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4671 sizeof(struct wpa_used_freq_data));
4675 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4676 wpa_s->num_multichan_concurrent);
4679 * It is possible that the total number of used frequencies is bigger
4680 * than the number of frequencies used for P2P, so get the system wide
4681 * number of unused frequencies.
4683 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4685 wpa_printf(MSG_DEBUG,
4686 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4687 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4692 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4694 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4696 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4697 "(%u MHz) is not supported for P2P uses",
4703 for (i = 0; i < num; i++) {
4704 if (freqs[i].freq == freq)
4708 if (num_unused <= 0 && !freq_in_use) {
4709 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4714 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4715 "requested channel (%u MHz)", freq);
4720 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4722 /* We have a candidate frequency to use */
4723 if (best_freq > 0) {
4724 if (*pref_freq == 0 && num_unused > 0) {
4725 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4727 *pref_freq = best_freq;
4729 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4731 *force_freq = best_freq;
4733 } else if (num_unused > 0) {
4734 wpa_printf(MSG_DEBUG,
4735 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4738 wpa_printf(MSG_DEBUG,
4739 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4753 * wpas_p2p_connect - Request P2P Group Formation to be started
4754 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4755 * @peer_addr: Address of the peer P2P Device
4756 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4757 * @persistent_group: Whether to create a persistent group
4758 * @auto_join: Whether to select join vs. GO Negotiation automatically
4759 * @join: Whether to join an existing group (as a client) instead of starting
4760 * Group Owner negotiation; @peer_addr is BSSID in that case
4761 * @auth: Whether to only authorize the connection instead of doing that and
4762 * initiating Group Owner negotiation
4763 * @go_intent: GO Intent or -1 to use default
4764 * @freq: Frequency for the group or 0 for auto-selection
4765 * @persistent_id: Persistent group credentials to use for forcing GO
4766 * parameters or -1 to generate new values (SSID/passphrase)
4767 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4768 * interoperability workaround when initiating group formation
4769 * @ht40: Start GO with 40 MHz channel width
4770 * @vht: Start GO with VHT support
4771 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4772 * failure, -2 on failure due to channel not currently available,
4773 * -3 if forced channel is not supported
4775 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4776 const char *pin, enum p2p_wps_method wps_method,
4777 int persistent_group, int auto_join, int join, int auth,
4778 int go_intent, int freq, int persistent_id, int pd,
4781 int force_freq = 0, pref_freq = 0;
4783 enum wpa_driver_if_type iftype;
4785 struct wpa_ssid *ssid = NULL;
4787 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4790 if (persistent_id >= 0) {
4791 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4792 if (ssid == NULL || ssid->disabled != 2 ||
4793 ssid->mode != WPAS_MODE_P2P_GO)
4797 os_free(wpa_s->global->add_psk);
4798 wpa_s->global->add_psk = NULL;
4800 wpa_s->global->p2p_fail_on_wps_complete = 0;
4803 go_intent = wpa_s->conf->p2p_go_intent;
4806 wpa_s->p2p_long_listen = 0;
4808 wpa_s->p2p_wps_method = wps_method;
4809 wpa_s->p2p_persistent_group = !!persistent_group;
4810 wpa_s->p2p_persistent_id = persistent_id;
4811 wpa_s->p2p_go_intent = go_intent;
4812 wpa_s->p2p_connect_freq = freq;
4813 wpa_s->p2p_fallback_to_go_neg = 0;
4814 wpa_s->p2p_pd_before_go_neg = !!pd;
4815 wpa_s->p2p_go_ht40 = !!ht40;
4816 wpa_s->p2p_go_vht = !!vht;
4819 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4820 else if (wps_method == WPS_PIN_DISPLAY) {
4821 ret = wps_generate_pin();
4822 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4824 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4827 wpa_s->p2p_pin[0] = '\0';
4829 if (join || auto_join) {
4830 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
4832 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4833 "connect a running group from " MACSTR,
4834 MAC2STR(peer_addr));
4835 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4838 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
4839 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4841 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4842 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4846 os_get_reltime(&wpa_s->p2p_auto_started);
4847 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4849 wpa_s->p2p_auto_started.sec,
4850 wpa_s->p2p_auto_started.usec);
4852 wpa_s->user_initiated_pd = 1;
4853 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
4854 auto_join, freq, NULL, 0) < 0)
4859 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4863 wpas_p2p_set_own_freq_preference(wpa_s,
4864 force_freq ? force_freq : pref_freq);
4866 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4868 if (wpa_s->create_p2p_iface) {
4869 /* Prepare to add a new interface for the group */
4870 iftype = WPA_IF_P2P_GROUP;
4871 if (go_intent == 15)
4872 iftype = WPA_IF_P2P_GO;
4873 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4874 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4875 "interface for the group");
4879 if_addr = wpa_s->pending_interface_addr;
4881 if_addr = wpa_s->own_addr;
4884 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
4886 force_freq, persistent_group, ssid,
4892 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4893 go_intent, if_addr, force_freq,
4894 persistent_group, ssid, pref_freq) < 0) {
4895 if (wpa_s->create_p2p_iface)
4896 wpas_p2p_remove_pending_group_interface(wpa_s);
4904 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4905 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4906 * @freq: Frequency of the channel in MHz
4907 * @duration: Duration of the stay on the channel in milliseconds
4909 * This callback is called when the driver indicates that it has started the
4910 * requested remain-on-channel duration.
4912 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4913 unsigned int freq, unsigned int duration)
4915 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4917 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4918 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4919 wpa_s->pending_listen_duration);
4920 wpa_s->pending_listen_freq = 0;
4922 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
4923 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4929 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
4930 unsigned int timeout)
4932 /* Limit maximum Listen state time based on driver limitation. */
4933 if (timeout > wpa_s->max_remain_on_chan)
4934 timeout = wpa_s->max_remain_on_chan;
4936 return p2p_listen(wpa_s->global->p2p, timeout);
4941 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4942 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4943 * @freq: Frequency of the channel in MHz
4945 * This callback is called when the driver indicates that a remain-on-channel
4946 * operation has been completed, i.e., the duration on the requested channel
4949 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4952 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
4953 "(p2p_long_listen=%d ms pending_action_tx=%p)",
4954 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
4955 wpas_p2p_listen_work_done(wpa_s);
4956 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4958 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4959 return; /* P2P module started a new operation */
4960 if (offchannel_pending_action_tx(wpa_s))
4962 if (wpa_s->p2p_long_listen > 0)
4963 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
4964 if (wpa_s->p2p_long_listen > 0) {
4965 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
4966 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
4969 * When listen duration is over, stop listen & update p2p_state
4972 p2p_stop_listen(wpa_s->global->p2p);
4978 * wpas_p2p_group_remove - Remove a P2P group
4979 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4980 * @ifname: Network interface name of the group interface or "*" to remove all
4982 * Returns: 0 on success, -1 on failure
4984 * This function is used to remove a P2P group. This can be used to disconnect
4985 * from a group in which the local end is a P2P Client or to end a P2P Group in
4986 * case the local end is the Group Owner. If a virtual network interface was
4987 * created for this group, that interface will be removed. Otherwise, only the
4988 * configured P2P group network will be removed from the interface.
4990 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
4992 struct wpa_global *global = wpa_s->global;
4994 if (os_strcmp(ifname, "*") == 0) {
4995 struct wpa_supplicant *prev;
4996 wpa_s = global->ifaces;
4999 wpa_s = wpa_s->next;
5000 if (prev->p2p_group_interface !=
5001 NOT_P2P_GROUP_INTERFACE ||
5002 (prev->current_ssid &&
5003 prev->current_ssid->p2p_group))
5004 wpas_p2p_disconnect(prev);
5009 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5010 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5014 return wpas_p2p_disconnect(wpa_s);
5018 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5023 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5025 if (wpa_s->best_24_freq > 0 &&
5026 p2p_supported_freq_go(wpa_s->global->p2p,
5027 wpa_s->best_24_freq)) {
5028 freq = wpa_s->best_24_freq;
5029 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5030 "channel: %d MHz", freq);
5032 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5034 freq = 2412 + (r % 3) * 25;
5035 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5036 "channel: %d MHz", freq);
5041 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5043 if (wpa_s->best_5_freq > 0 &&
5044 p2p_supported_freq_go(wpa_s->global->p2p,
5045 wpa_s->best_5_freq)) {
5046 freq = wpa_s->best_5_freq;
5047 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5048 "channel: %d MHz", freq);
5050 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5052 freq = 5180 + (r % 4) * 20;
5053 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5054 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5055 "5 GHz channel for P2P group");
5058 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5059 "channel: %d MHz", freq);
5063 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5064 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5065 "(%u MHz) is not supported for P2P uses",
5074 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5075 struct p2p_go_neg_results *params,
5076 const struct p2p_channels *channels)
5080 /* first try some random selection of the social channels */
5081 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5084 for (i = 0; i < 3; i++) {
5085 params->freq = 2412 + ((r + i) % 3) * 25;
5086 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5087 freq_included(channels, params->freq))
5091 /* try all channels in reg. class 81 */
5092 for (i = 0; i < 11; i++) {
5093 params->freq = 2412 + i * 5;
5094 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5095 freq_included(channels, params->freq))
5099 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel allowed");
5102 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5108 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5109 struct p2p_go_neg_results *params,
5110 int freq, int ht40, int vht,
5111 const struct p2p_channels *channels)
5113 struct wpa_used_freq_data *freqs;
5114 unsigned int pref_freq, cand_freq;
5115 unsigned int num, i;
5117 os_memset(params, 0, sizeof(*params));
5118 params->role_go = 1;
5119 params->ht40 = ht40;
5122 if (!freq_included(channels, freq)) {
5123 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5127 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5128 "frequency %d MHz", freq);
5129 params->freq = freq;
5130 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5131 wpa_s->conf->p2p_oper_channel >= 1 &&
5132 wpa_s->conf->p2p_oper_channel <= 11 &&
5133 freq_included(channels,
5134 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5135 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5136 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5137 "frequency %d MHz", params->freq);
5138 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5139 wpa_s->conf->p2p_oper_reg_class == 116 ||
5140 wpa_s->conf->p2p_oper_reg_class == 117 ||
5141 wpa_s->conf->p2p_oper_reg_class == 124 ||
5142 wpa_s->conf->p2p_oper_reg_class == 126 ||
5143 wpa_s->conf->p2p_oper_reg_class == 127) &&
5144 freq_included(channels,
5145 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
5146 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5147 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5148 "frequency %d MHz", params->freq);
5149 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5150 wpa_s->best_overall_freq > 0 &&
5151 p2p_supported_freq_go(wpa_s->global->p2p,
5152 wpa_s->best_overall_freq) &&
5153 freq_included(channels, wpa_s->best_overall_freq)) {
5154 params->freq = wpa_s->best_overall_freq;
5155 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5156 "channel %d MHz", params->freq);
5157 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5158 wpa_s->best_24_freq > 0 &&
5159 p2p_supported_freq_go(wpa_s->global->p2p,
5160 wpa_s->best_24_freq) &&
5161 freq_included(channels, wpa_s->best_24_freq)) {
5162 params->freq = wpa_s->best_24_freq;
5163 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5164 "channel %d MHz", params->freq);
5165 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5166 wpa_s->best_5_freq > 0 &&
5167 p2p_supported_freq_go(wpa_s->global->p2p,
5168 wpa_s->best_5_freq) &&
5169 freq_included(channels, wpa_s->best_5_freq)) {
5170 params->freq = wpa_s->best_5_freq;
5171 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5172 "channel %d MHz", params->freq);
5173 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5175 params->freq = pref_freq;
5176 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5177 "channels", params->freq);
5179 /* no preference, select some channel */
5180 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
5184 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5185 sizeof(struct wpa_used_freq_data));
5189 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5190 wpa_s->num_multichan_concurrent);
5192 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5194 /* First try the best used frequency if possible */
5195 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5196 params->freq = cand_freq;
5198 /* Try any of the used frequencies */
5199 for (i = 0; i < num; i++) {
5200 if (freq_included(channels, freqs[i].freq)) {
5201 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5203 params->freq = freqs[i].freq;
5209 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5210 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
5214 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5218 for (i = 0; i < num; i++) {
5219 if (freqs[i].freq == freq)
5224 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5226 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5230 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5240 static struct wpa_supplicant *
5241 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5244 struct wpa_supplicant *group_wpa_s;
5246 if (!wpas_p2p_create_iface(wpa_s)) {
5247 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5249 wpa_s->p2p_first_connection_timeout = 0;
5253 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5254 WPA_IF_P2P_CLIENT) < 0) {
5255 wpa_msg_global(wpa_s, MSG_ERROR,
5256 "P2P: Failed to add group interface");
5259 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5260 if (group_wpa_s == NULL) {
5261 wpa_msg_global(wpa_s, MSG_ERROR,
5262 "P2P: Failed to initialize group interface");
5263 wpas_p2p_remove_pending_group_interface(wpa_s);
5267 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5268 group_wpa_s->ifname);
5269 group_wpa_s->p2p_first_connection_timeout = 0;
5275 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5276 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5277 * @persistent_group: Whether to create a persistent group
5278 * @freq: Frequency for the group or 0 to indicate no hardcoding
5279 * @ht40: Start GO with 40 MHz channel width
5280 * @vht: Start GO with VHT support
5281 * Returns: 0 on success, -1 on failure
5283 * This function creates a new P2P group with the local end as the Group Owner,
5284 * i.e., without using Group Owner Negotiation.
5286 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5287 int freq, int ht40, int vht)
5289 struct p2p_go_neg_results params;
5291 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5294 os_free(wpa_s->global->add_psk);
5295 wpa_s->global->add_psk = NULL;
5297 /* Make sure we are not running find during connection establishment */
5298 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5299 wpas_p2p_stop_find_oper(wpa_s);
5301 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5305 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5308 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5309 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
5310 "(%u MHz) is not supported for P2P uses",
5314 p2p_go_params(wpa_s->global->p2p, ¶ms);
5315 params.persistent_group = persistent_group;
5317 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5320 wpas_start_wps_go(wpa_s, ¶ms, 0);
5326 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5327 struct wpa_ssid *params, int addr_allocated,
5330 struct wpa_ssid *ssid;
5332 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5335 wpa_s->p2p_last_4way_hs_fail = NULL;
5337 wpa_supplicant_ap_deinit(wpa_s);
5339 ssid = wpa_config_add_network(wpa_s->conf);
5342 wpa_config_set_network_defaults(ssid);
5343 ssid->temporary = 1;
5344 ssid->proto = WPA_PROTO_RSN;
5345 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5346 ssid->group_cipher = WPA_CIPHER_CCMP;
5347 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5348 ssid->ssid = os_malloc(params->ssid_len);
5349 if (ssid->ssid == NULL) {
5350 wpa_config_remove_network(wpa_s->conf, ssid->id);
5353 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5354 ssid->ssid_len = params->ssid_len;
5355 ssid->p2p_group = 1;
5356 ssid->export_keys = 1;
5357 if (params->psk_set) {
5358 os_memcpy(ssid->psk, params->psk, 32);
5361 if (params->passphrase)
5362 ssid->passphrase = os_strdup(params->passphrase);
5364 wpa_s->show_group_started = 1;
5365 wpa_s->p2p_in_invitation = 1;
5366 wpa_s->p2p_invite_go_freq = freq;
5368 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5370 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5371 wpas_p2p_group_formation_timeout,
5372 wpa_s->parent, NULL);
5373 wpa_supplicant_select_network(wpa_s, ssid);
5379 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5380 struct wpa_ssid *ssid, int addr_allocated,
5381 int force_freq, int neg_freq, int ht40,
5382 int vht, const struct p2p_channels *channels,
5383 int connection_timeout)
5385 struct p2p_go_neg_results params;
5388 if (ssid->disabled != 2 || ssid->ssid == NULL)
5391 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5392 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5393 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5398 os_free(wpa_s->global->add_psk);
5399 wpa_s->global->add_psk = NULL;
5401 /* Make sure we are not running find during connection establishment */
5402 wpas_p2p_stop_find_oper(wpa_s);
5404 wpa_s->p2p_fallback_to_go_neg = 0;
5406 if (force_freq > 0) {
5407 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5411 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5412 if (freq < 0 || (freq > 0 && !freq_included(channels, freq)))
5416 if (ssid->mode == WPAS_MODE_INFRA)
5417 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5419 if (ssid->mode != WPAS_MODE_P2P_GO)
5422 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5426 params.psk_set = ssid->psk_set;
5428 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5429 if (ssid->passphrase) {
5430 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5431 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5432 "persistent group");
5435 os_strlcpy(params.passphrase, ssid->passphrase,
5436 sizeof(params.passphrase));
5438 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5439 params.ssid_len = ssid->ssid_len;
5440 params.persistent_group = 1;
5442 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5446 wpa_s->p2p_first_connection_timeout = connection_timeout;
5447 wpas_start_wps_go(wpa_s, ¶ms, 0);
5453 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5454 struct wpabuf *proberesp_ies)
5456 struct wpa_supplicant *wpa_s = ctx;
5457 if (wpa_s->ap_iface) {
5458 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5459 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5460 wpabuf_free(beacon_ies);
5461 wpabuf_free(proberesp_ies);
5465 wpabuf_free(hapd->p2p_beacon_ie);
5466 hapd->p2p_beacon_ie = beacon_ies;
5468 wpabuf_free(hapd->p2p_probe_resp_ie);
5469 hapd->p2p_probe_resp_ie = proberesp_ies;
5471 wpabuf_free(beacon_ies);
5472 wpabuf_free(proberesp_ies);
5474 wpa_supplicant_ap_update_beacon(wpa_s);
5478 static void wpas_p2p_idle_update(void *ctx, int idle)
5480 struct wpa_supplicant *wpa_s = ctx;
5481 if (!wpa_s->ap_iface)
5483 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5485 if (wpa_s->global->p2p_fail_on_wps_complete &&
5486 wpa_s->p2p_in_provisioning) {
5487 wpas_p2p_grpform_fail_after_wps(wpa_s);
5490 wpas_p2p_set_group_idle_timeout(wpa_s);
5492 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5496 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5497 struct wpa_ssid *ssid)
5499 struct p2p_group *group;
5500 struct p2p_group_config *cfg;
5502 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5505 cfg = os_zalloc(sizeof(*cfg));
5509 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5510 cfg->persistent_group = 2;
5511 else if (ssid->p2p_persistent_group)
5512 cfg->persistent_group = 1;
5513 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5514 if (wpa_s->max_stations &&
5515 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5516 cfg->max_clients = wpa_s->max_stations;
5518 cfg->max_clients = wpa_s->conf->max_num_sta;
5519 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5520 cfg->ssid_len = ssid->ssid_len;
5521 cfg->freq = ssid->frequency;
5522 cfg->cb_ctx = wpa_s;
5523 cfg->ie_update = wpas_p2p_ie_update;
5524 cfg->idle_update = wpas_p2p_idle_update;
5526 group = p2p_group_init(wpa_s->global->p2p, cfg);
5529 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5530 p2p_group_notif_formation_done(group);
5531 wpa_s->p2p_group = group;
5536 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5539 struct wpa_ssid *ssid = wpa_s->current_ssid;
5541 if (!wpa_s->p2p_in_provisioning) {
5542 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5543 "provisioning not in progress");
5547 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5548 u8 go_dev_addr[ETH_ALEN];
5549 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5550 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5552 /* Clear any stored provisioning info */
5553 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5556 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5558 wpa_s->p2p_go_group_formation_completed = 1;
5559 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5561 * Use a separate timeout for initial data connection to
5562 * complete to allow the group to be removed automatically if
5563 * something goes wrong in this step before the P2P group idle
5564 * timeout mechanism is taken into use.
5566 wpa_dbg(wpa_s, MSG_DEBUG,
5567 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5568 P2P_MAX_INITIAL_CONN_WAIT);
5569 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5570 wpas_p2p_group_formation_timeout,
5571 wpa_s->parent, NULL);
5574 * Use a separate timeout for initial data connection to
5575 * complete to allow the group to be removed automatically if
5576 * the client does not complete data connection successfully.
5578 wpa_dbg(wpa_s, MSG_DEBUG,
5579 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5580 P2P_MAX_INITIAL_CONN_WAIT_GO);
5581 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5582 wpas_p2p_group_formation_timeout,
5583 wpa_s->parent, NULL);
5585 * Complete group formation on first successful data connection
5587 wpa_s->p2p_go_group_formation_completed = 0;
5589 if (wpa_s->global->p2p)
5590 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5591 wpas_group_formation_completed(wpa_s, 1);
5595 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5596 struct wps_event_fail *fail)
5598 if (!wpa_s->p2p_in_provisioning) {
5599 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5600 "provisioning not in progress");
5604 if (wpa_s->go_params) {
5605 p2p_clear_provisioning_info(
5607 wpa_s->go_params->peer_device_addr);
5610 wpas_notify_p2p_wps_failed(wpa_s, fail);
5612 if (wpa_s == wpa_s->global->p2p_group_formation) {
5614 * Allow some time for the failed WPS negotiation exchange to
5615 * complete, but remove the group since group formation cannot
5616 * succeed after provisioning failure.
5618 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5619 wpa_s->global->p2p_fail_on_wps_complete = 1;
5620 eloop_deplete_timeout(0, 50000,
5621 wpas_p2p_group_formation_timeout,
5622 wpa_s->parent, NULL);
5627 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5629 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5630 !wpa_s->p2p_in_provisioning)
5633 wpas_p2p_grpform_fail_after_wps(wpa_s);
5639 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5640 const char *config_method,
5641 enum wpas_p2p_prov_disc_use use)
5645 wpa_s->p2p_fallback_to_go_neg = 0;
5646 wpa_s->pending_pd_use = NORMAL_PD;
5647 if (os_strncmp(config_method, "display", 7) == 0)
5648 config_methods = WPS_CONFIG_DISPLAY;
5649 else if (os_strncmp(config_method, "keypad", 6) == 0)
5650 config_methods = WPS_CONFIG_KEYPAD;
5651 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5652 os_strncmp(config_method, "pushbutton", 10) == 0)
5653 config_methods = WPS_CONFIG_PUSHBUTTON;
5655 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5659 if (use == WPAS_P2P_PD_AUTO) {
5660 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5661 wpa_s->pending_pd_config_methods = config_methods;
5662 wpa_s->p2p_auto_pd = 1;
5663 wpa_s->p2p_auto_join = 0;
5664 wpa_s->pending_pd_before_join = 0;
5665 wpa_s->auto_pd_scan_retry = 0;
5666 wpas_p2p_stop_find(wpa_s);
5667 wpa_s->p2p_join_scan_count = 0;
5668 os_get_reltime(&wpa_s->p2p_auto_started);
5669 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5670 wpa_s->p2p_auto_started.sec,
5671 wpa_s->p2p_auto_started.usec);
5672 wpas_p2p_join_scan(wpa_s, NULL);
5676 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
5679 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
5680 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5685 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5688 return p2p_scan_result_text(ies, ies_len, buf, end);
5692 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5694 if (!offchannel_pending_action_tx(wpa_s))
5697 wpas_p2p_action_tx_clear(wpa_s);
5699 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5700 "operation request");
5701 offchannel_clear_pending_action_tx(wpa_s);
5705 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
5706 enum p2p_discovery_type type,
5707 unsigned int num_req_dev_types, const u8 *req_dev_types,
5708 const u8 *dev_id, unsigned int search_delay)
5710 wpas_p2p_clear_pending_action_tx(wpa_s);
5711 wpa_s->p2p_long_listen = 0;
5713 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
5714 wpa_s->p2p_in_provisioning)
5717 wpa_supplicant_cancel_sched_scan(wpa_s);
5719 return p2p_find(wpa_s->global->p2p, timeout, type,
5720 num_req_dev_types, req_dev_types, dev_id,
5725 static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
5727 wpas_p2p_clear_pending_action_tx(wpa_s);
5728 wpa_s->p2p_long_listen = 0;
5729 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5730 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5732 if (wpa_s->global->p2p)
5733 p2p_stop_find(wpa_s->global->p2p);
5739 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5741 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
5743 wpas_p2p_remove_pending_group_interface(wpa_s);
5747 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5749 struct wpa_supplicant *wpa_s = eloop_ctx;
5750 wpa_s->p2p_long_listen = 0;
5754 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5758 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5761 wpa_supplicant_cancel_sched_scan(wpa_s);
5762 wpas_p2p_clear_pending_action_tx(wpa_s);
5766 * This is a request for unlimited Listen state. However, at
5767 * least for now, this is mapped to a Listen state for one
5772 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5773 wpa_s->p2p_long_listen = 0;
5776 * Stop previous find/listen operation to avoid trying to request a new
5777 * remain-on-channel operation while the driver is still running the
5780 if (wpa_s->global->p2p)
5781 p2p_stop_find(wpa_s->global->p2p);
5783 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5784 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
5785 wpa_s->p2p_long_listen = timeout * 1000;
5786 eloop_register_timeout(timeout, 0,
5787 wpas_p2p_long_listen_timeout,
5795 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
5796 u8 *buf, size_t len, int p2p_group)
5798 struct wpabuf *p2p_ie;
5801 if (wpa_s->global->p2p_disabled)
5803 if (wpa_s->conf->p2p_disabled)
5805 if (wpa_s->global->p2p == NULL)
5810 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5811 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5813 wpabuf_free(p2p_ie);
5819 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
5820 const u8 *dst, const u8 *bssid,
5821 const u8 *ie, size_t ie_len, int ssi_signal)
5823 if (wpa_s->global->p2p_disabled)
5825 if (wpa_s->global->p2p == NULL)
5828 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5830 case P2P_PREQ_NOT_P2P:
5831 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5834 case P2P_PREQ_MALFORMED:
5835 case P2P_PREQ_NOT_LISTEN:
5836 case P2P_PREQ_NOT_PROCESSED:
5837 default: /* make gcc happy */
5839 case P2P_PREQ_PROCESSED:
5845 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5846 const u8 *sa, const u8 *bssid,
5847 u8 category, const u8 *data, size_t len, int freq)
5849 if (wpa_s->global->p2p_disabled)
5851 if (wpa_s->global->p2p == NULL)
5854 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
5859 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
5861 if (wpa_s->global->p2p_disabled)
5863 if (wpa_s->global->p2p == NULL)
5866 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
5870 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
5872 p2p_group_deinit(wpa_s->p2p_group);
5873 wpa_s->p2p_group = NULL;
5875 wpa_s->ap_configured_cb = NULL;
5876 wpa_s->ap_configured_cb_ctx = NULL;
5877 wpa_s->ap_configured_cb_data = NULL;
5878 wpa_s->connect_without_scan = NULL;
5882 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
5884 wpa_s->p2p_long_listen = 0;
5886 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5889 return p2p_reject(wpa_s->global->p2p, addr);
5893 /* Invite to reinvoke a persistent group */
5894 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5895 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
5896 int ht40, int vht, int pref_freq)
5898 enum p2p_invite_role role;
5902 int no_pref_freq_given = pref_freq == 0;
5904 wpa_s->global->p2p_invite_group = NULL;
5906 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5908 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
5910 wpa_s->p2p_persistent_go_freq = freq;
5911 wpa_s->p2p_go_ht40 = !!ht40;
5912 if (ssid->mode == WPAS_MODE_P2P_GO) {
5913 role = P2P_INVITE_ROLE_GO;
5914 if (peer_addr == NULL) {
5915 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
5916 "address in invitation command");
5919 if (wpas_p2p_create_iface(wpa_s)) {
5920 if (wpas_p2p_add_group_interface(wpa_s,
5921 WPA_IF_P2P_GO) < 0) {
5922 wpa_printf(MSG_ERROR, "P2P: Failed to "
5923 "allocate a new interface for the "
5927 bssid = wpa_s->pending_interface_addr;
5929 bssid = wpa_s->own_addr;
5931 role = P2P_INVITE_ROLE_CLIENT;
5932 peer_addr = ssid->bssid;
5934 wpa_s->pending_invite_ssid_id = ssid->id;
5936 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5937 role == P2P_INVITE_ROLE_GO);
5941 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5944 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
5945 no_pref_freq_given && pref_freq > 0 &&
5946 wpa_s->num_multichan_concurrent > 1 &&
5947 wpas_p2p_num_unused_channels(wpa_s) > 0) {
5948 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
5953 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
5954 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
5959 /* Invite to join an active group */
5960 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
5961 const u8 *peer_addr, const u8 *go_dev_addr)
5963 struct wpa_global *global = wpa_s->global;
5964 enum p2p_invite_role role;
5966 struct wpa_ssid *ssid;
5968 int freq = 0, force_freq = 0, pref_freq = 0;
5971 wpa_s->p2p_persistent_go_freq = 0;
5972 wpa_s->p2p_go_ht40 = 0;
5973 wpa_s->p2p_go_vht = 0;
5975 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5976 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5979 if (wpa_s == NULL) {
5980 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
5984 ssid = wpa_s->current_ssid;
5986 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
5991 wpa_s->global->p2p_invite_group = wpa_s;
5992 persistent = ssid->p2p_persistent_group &&
5993 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
5994 ssid->ssid, ssid->ssid_len);
5996 if (ssid->mode == WPAS_MODE_P2P_GO) {
5997 role = P2P_INVITE_ROLE_ACTIVE_GO;
5998 bssid = wpa_s->own_addr;
5999 if (go_dev_addr == NULL)
6000 go_dev_addr = wpa_s->global->p2p_dev_addr;
6001 freq = ssid->frequency;
6003 role = P2P_INVITE_ROLE_CLIENT;
6004 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6005 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6006 "invite to current group");
6009 bssid = wpa_s->bssid;
6010 if (go_dev_addr == NULL &&
6011 !is_zero_ether_addr(wpa_s->go_dev_addr))
6012 go_dev_addr = wpa_s->go_dev_addr;
6013 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6014 (int) wpa_s->assoc_freq;
6016 wpa_s->parent->pending_invite_ssid_id = -1;
6018 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6021 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6022 role == P2P_INVITE_ROLE_ACTIVE_GO);
6025 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6027 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6028 ssid->ssid, ssid->ssid_len, force_freq,
6029 go_dev_addr, persistent, pref_freq, -1);
6033 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6035 struct wpa_ssid *ssid = wpa_s->current_ssid;
6036 u8 go_dev_addr[ETH_ALEN];
6037 int network_id = -1;
6043 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6044 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6045 wpa_s->parent, NULL);
6048 if (!wpa_s->show_group_started || !ssid)
6051 wpa_s->show_group_started = 0;
6053 os_memset(go_dev_addr, 0, ETH_ALEN);
6054 if (ssid->bssid_set)
6055 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6056 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6058 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6060 if (wpa_s->global->p2p_group_formation == wpa_s)
6061 wpa_s->global->p2p_group_formation = NULL;
6063 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6064 (int) wpa_s->assoc_freq;
6067 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6068 os_snprintf(ip_addr, sizeof(ip_addr), " ip_addr=%u.%u.%u.%u "
6069 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6070 ip[0], ip[1], ip[2], ip[3],
6071 ip[4], ip[5], ip[6], ip[7],
6072 ip[8], ip[9], ip[10], ip[11]);
6075 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6076 ssid->passphrase == NULL && ssid->psk_set ?
6078 ssid->passphrase, go_dev_addr, persistent,
6082 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6085 network_id = ssid->id;
6086 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6090 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6091 u32 interval1, u32 duration2, u32 interval2)
6095 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6098 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6099 wpa_s->current_ssid == NULL ||
6100 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6103 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6104 wpa_s->own_addr, wpa_s->assoc_freq,
6105 duration1, interval1, duration2, interval2);
6107 wpa_s->waiting_presence_resp = 1;
6113 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6114 unsigned int interval)
6116 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6119 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6123 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6125 if (wpa_s->current_ssid == NULL) {
6127 * current_ssid can be cleared when P2P client interface gets
6128 * disconnected, so assume this interface was used as P2P
6133 return wpa_s->current_ssid->p2p_group &&
6134 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6138 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6140 struct wpa_supplicant *wpa_s = eloop_ctx;
6142 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6143 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6148 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6150 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6154 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6158 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6159 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6161 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6164 timeout = wpa_s->conf->p2p_group_idle;
6165 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6166 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6167 timeout = P2P_MAX_CLIENT_IDLE;
6173 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6174 timeout = 0; /* special client mode no-timeout */
6179 if (wpa_s->p2p_in_provisioning) {
6181 * Use the normal group formation timeout during the
6182 * provisioning phase to avoid terminating this process too
6183 * early due to group idle timeout.
6185 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6186 "during provisioning");
6190 if (wpa_s->show_group_started) {
6192 * Use the normal group formation timeout between the end of
6193 * the provisioning phase and completion of 4-way handshake to
6194 * avoid terminating this process too early due to group idle
6197 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6198 "while waiting for initial 4-way handshake to "
6203 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6205 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6210 /* Returns 1 if the interface was removed */
6211 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6212 u16 reason_code, const u8 *ie, size_t ie_len,
6213 int locally_generated)
6215 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6218 if (!locally_generated)
6219 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6222 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6223 wpa_s->current_ssid &&
6224 wpa_s->current_ssid->p2p_group &&
6225 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6226 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6227 "session is ending");
6228 if (wpas_p2p_group_delete(wpa_s,
6229 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6238 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6239 u16 reason_code, const u8 *ie, size_t ie_len,
6240 int locally_generated)
6242 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6245 if (!locally_generated)
6246 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6251 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6253 struct p2p_data *p2p = wpa_s->global->p2p;
6258 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6261 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6262 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6264 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6265 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6268 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6269 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6271 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6272 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6274 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6275 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6276 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6277 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6278 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6281 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6282 p2p_set_sec_dev_types(p2p,
6283 (void *) wpa_s->conf->sec_device_type,
6284 wpa_s->conf->num_sec_device_types);
6286 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6288 p2p_remove_wps_vendor_extensions(p2p);
6289 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6290 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6292 p2p_add_wps_vendor_extension(
6293 p2p, wpa_s->conf->wps_vendor_ext[i]);
6297 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6298 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6300 country[0] = wpa_s->conf->country[0];
6301 country[1] = wpa_s->conf->country[1];
6303 p2p_set_country(p2p, country);
6306 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6307 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6308 wpa_s->conf->p2p_ssid_postfix ?
6309 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6313 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6314 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6316 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6317 u8 reg_class, channel;
6322 if (wpa_s->conf->p2p_listen_reg_class &&
6323 wpa_s->conf->p2p_listen_channel) {
6324 reg_class = wpa_s->conf->p2p_listen_reg_class;
6325 channel = wpa_s->conf->p2p_listen_channel;
6330 * Pick one of the social channels randomly as the
6333 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6336 channel = 1 + (r % 3) * 5;
6339 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6342 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6345 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6346 u8 op_reg_class, op_channel, cfg_op_channel;
6349 if (wpa_s->conf->p2p_oper_reg_class &&
6350 wpa_s->conf->p2p_oper_channel) {
6351 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6352 op_channel = wpa_s->conf->p2p_oper_channel;
6357 * Use random operation channel from (1, 6, 11)
6358 *if no other preference is indicated.
6360 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6363 op_channel = 1 + (r % 3) * 5;
6366 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6369 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6373 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6374 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6375 wpa_s->conf->p2p_pref_chan) < 0) {
6376 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6380 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6381 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6386 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6387 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6391 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6394 if (!wpa_s->ap_iface)
6396 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6401 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6403 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6406 wpa_s->global->cross_connection = enabled;
6407 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6410 struct wpa_supplicant *iface;
6412 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6414 if (iface->cross_connect_enabled == 0)
6417 iface->cross_connect_enabled = 0;
6418 iface->cross_connect_in_use = 0;
6419 wpa_msg_global(iface->parent, MSG_INFO,
6420 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6422 iface->cross_connect_uplink);
6430 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6432 struct wpa_supplicant *iface;
6434 if (!uplink->global->cross_connection)
6437 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6438 if (!iface->cross_connect_enabled)
6440 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6443 if (iface->ap_iface == NULL)
6445 if (iface->cross_connect_in_use)
6448 iface->cross_connect_in_use = 1;
6449 wpa_msg_global(iface->parent, MSG_INFO,
6450 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6451 iface->ifname, iface->cross_connect_uplink);
6456 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6458 struct wpa_supplicant *iface;
6460 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6461 if (!iface->cross_connect_enabled)
6463 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6466 if (!iface->cross_connect_in_use)
6469 wpa_msg_global(iface->parent, MSG_INFO,
6470 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6471 iface->ifname, iface->cross_connect_uplink);
6472 iface->cross_connect_in_use = 0;
6477 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6479 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6480 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6481 wpa_s->cross_connect_disallowed)
6482 wpas_p2p_disable_cross_connect(wpa_s);
6484 wpas_p2p_enable_cross_connect(wpa_s);
6485 if (!wpa_s->ap_iface &&
6486 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6487 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6491 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6493 wpas_p2p_disable_cross_connect(wpa_s);
6494 if (!wpa_s->ap_iface &&
6495 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6497 wpas_p2p_set_group_idle_timeout(wpa_s);
6501 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6503 struct wpa_supplicant *iface;
6505 if (!wpa_s->global->cross_connection)
6508 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6511 if (iface->drv_flags &
6512 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6514 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
6517 wpa_s->cross_connect_enabled = 1;
6518 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6519 sizeof(wpa_s->cross_connect_uplink));
6520 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6521 "%s to %s whenever uplink is available",
6522 wpa_s->ifname, wpa_s->cross_connect_uplink);
6524 if (iface->ap_iface || iface->current_ssid == NULL ||
6525 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6526 iface->cross_connect_disallowed ||
6527 iface->wpa_state != WPA_COMPLETED)
6530 wpa_s->cross_connect_in_use = 1;
6531 wpa_msg_global(wpa_s->parent, MSG_INFO,
6532 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6533 wpa_s->ifname, wpa_s->cross_connect_uplink);
6539 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6541 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6542 !wpa_s->p2p_in_provisioning)
6543 return 0; /* not P2P client operation */
6545 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6547 if (wpa_s != wpa_s->parent)
6548 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6549 wpas_p2p_group_formation_failed(wpa_s);
6554 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6556 struct wpa_supplicant *wpa_s = eloop_ctx;
6557 wpas_p2p_notif_pbc_overlap(wpa_s);
6561 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6563 struct p2p_channels chan, cli_chan;
6564 struct wpa_supplicant *ifs;
6566 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6569 os_memset(&chan, 0, sizeof(chan));
6570 os_memset(&cli_chan, 0, sizeof(cli_chan));
6571 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6572 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6577 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6579 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6581 if (!ifs->current_ssid ||
6582 !ifs->current_ssid->p2p_group ||
6583 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6584 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6586 freq = ifs->current_ssid->frequency;
6587 if (freq_included(&chan, freq)) {
6588 wpa_dbg(ifs, MSG_DEBUG,
6589 "P2P GO operating frequency %d MHz in valid range",
6594 wpa_dbg(ifs, MSG_DEBUG,
6595 "P2P GO operating in invalid frequency %d MHz", freq);
6596 /* TODO: Consider using CSA or removing the group within
6598 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6603 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6604 struct wpa_scan_results *scan_res)
6606 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6610 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6612 struct wpa_global *global = wpa_s->global;
6616 if (global->p2p == NULL)
6619 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6621 if (wpa_s->pending_interface_name[0] &&
6622 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6625 peer = p2p_get_go_neg_peer(global->p2p);
6627 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6628 MACSTR, MAC2STR(peer));
6629 p2p_unauthorize(global->p2p, peer);
6633 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6634 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6635 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6639 if (wpa_s->pending_pd_before_join) {
6640 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6641 wpa_s->pending_pd_before_join = 0;
6645 wpas_p2p_stop_find(wpa_s);
6647 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6648 if (wpa_s == global->p2p_group_formation &&
6649 (wpa_s->p2p_in_provisioning ||
6650 wpa_s->parent->pending_interface_type ==
6651 WPA_IF_P2P_CLIENT)) {
6652 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6653 "formation found - cancelling",
6656 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6657 wpa_s->parent, NULL);
6658 if (wpa_s->p2p_in_provisioning) {
6659 wpas_group_formation_completed(wpa_s, 0);
6662 wpas_p2p_group_delete(wpa_s,
6663 P2P_GROUP_REMOVAL_REQUESTED);
6665 } else if (wpa_s->p2p_in_invitation) {
6666 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6669 wpas_p2p_group_formation_failed(wpa_s);
6674 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6682 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6684 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6687 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6688 "being available anymore");
6689 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
6693 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6694 int freq_24, int freq_5, int freq_overall)
6696 struct p2p_data *p2p = wpa_s->global->p2p;
6699 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6703 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6706 struct p2p_data *p2p = wpa_s->global->p2p;
6711 if (hwaddr_aton(addr, peer))
6714 return p2p_unauthorize(p2p, peer);
6719 * wpas_p2p_disconnect - Disconnect from a P2P Group
6720 * @wpa_s: Pointer to wpa_supplicant data
6721 * Returns: 0 on success, -1 on failure
6723 * This can be used to disconnect from a group in which the local end is a P2P
6724 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6725 * virtual network interface was created for this group, that interface will be
6726 * removed. Otherwise, only the configured P2P group network will be removed
6727 * from the interface.
6729 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6735 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6740 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6744 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6747 ret = p2p_in_progress(wpa_s->global->p2p);
6750 * Check whether there is an ongoing WPS provisioning step (or
6751 * other parts of group formation) on another interface since
6752 * p2p_in_progress() does not report this to avoid issues for
6753 * scans during such provisioning step.
6755 if (wpa_s->global->p2p_group_formation &&
6756 wpa_s->global->p2p_group_formation != wpa_s) {
6757 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6758 "in group formation",
6759 wpa_s->global->p2p_group_formation->ifname);
6764 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
6765 struct os_reltime now;
6766 os_get_reltime(&now);
6767 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6768 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
6769 /* Wait for the first client has expired */
6770 wpa_s->global->p2p_go_wait_client.sec = 0;
6772 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6781 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6782 struct wpa_ssid *ssid)
6784 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6785 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6786 wpa_s->parent, NULL) > 0) {
6788 * Remove the network by scheduling the group formation
6789 * timeout to happen immediately. The teardown code
6790 * needs to be scheduled to run asynch later so that we
6791 * don't delete data from under ourselves unexpectedly.
6792 * Calling wpas_p2p_group_formation_timeout directly
6793 * causes a series of crashes in WPS failure scenarios.
6795 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6796 "P2P group network getting removed");
6797 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6798 wpa_s->parent, NULL);
6803 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
6804 const u8 *addr, const u8 *ssid,
6810 for (s = wpa_s->conf->ssid; s; s = s->next) {
6811 if (s->disabled != 2)
6814 (ssid_len != s->ssid_len ||
6815 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6818 if (s->mode == WPAS_MODE_P2P_GO)
6822 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6823 return s; /* peer is GO in the persistent group */
6824 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6826 for (i = 0; i < s->num_p2p_clients; i++) {
6827 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
6828 addr, ETH_ALEN) == 0)
6829 return s; /* peer is P2P client in persistent
6838 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
6841 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6842 wpa_s->parent, NULL) > 0) {
6844 * This can happen if WPS provisioning step is not terminated
6845 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
6846 * peer was able to connect, there is no need to time out group
6847 * formation after this, though. In addition, this is used with
6848 * the initial connection wait on the GO as a separate formation
6849 * timeout and as such, expected to be hit after the initial WPS
6850 * provisioning step.
6852 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
6854 if (!wpa_s->p2p_go_group_formation_completed) {
6855 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
6856 wpa_s->p2p_go_group_formation_completed = 1;
6857 wpa_s->global->p2p_group_formation = NULL;
6858 wpa_s->p2p_in_provisioning = 0;
6859 wpa_s->p2p_in_invitation = 0;
6861 wpa_s->global->p2p_go_wait_client.sec = 0;
6864 wpas_p2p_add_persistent_group_client(wpa_s, addr);
6868 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
6871 struct wpa_supplicant *group = wpa_s;
6872 if (wpa_s->global->p2p_group_formation)
6873 group = wpa_s->global->p2p_group_formation;
6874 wpa_s = wpa_s->parent;
6875 offchannel_send_action_done(wpa_s);
6877 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
6878 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
6879 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
6880 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
6881 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
6882 wpa_s->p2p_persistent_id,
6883 wpa_s->p2p_pd_before_go_neg,
6889 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
6891 if (!wpa_s->p2p_fallback_to_go_neg ||
6892 wpa_s->p2p_in_provisioning <= 5)
6895 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
6896 return 0; /* peer operating as a GO */
6898 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
6899 "fallback to GO Negotiation");
6900 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
6906 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
6908 struct wpa_supplicant *ifs;
6910 if (wpa_s->wpa_state > WPA_SCANNING) {
6911 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
6912 "concurrent operation",
6913 wpa_s->conf->p2p_search_delay);
6914 return wpa_s->conf->p2p_search_delay;
6917 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6919 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
6920 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
6921 "delay due to concurrent operation on "
6923 wpa_s->conf->p2p_search_delay,
6925 return wpa_s->conf->p2p_search_delay;
6933 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
6934 struct wpa_ssid *s, const u8 *addr,
6937 struct psk_list_entry *psk, *tmp;
6940 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
6942 if ((iface_addr && !psk->p2p &&
6943 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
6944 (!iface_addr && psk->p2p &&
6945 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
6946 wpa_dbg(wpa_s, MSG_DEBUG,
6947 "P2P: Remove persistent group PSK list entry for "
6949 MAC2STR(psk->addr), psk->p2p);
6950 dl_list_del(&psk->list);
6960 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
6961 const u8 *p2p_dev_addr,
6962 const u8 *psk, size_t psk_len)
6964 struct wpa_ssid *ssid = wpa_s->current_ssid;
6965 struct wpa_ssid *persistent;
6966 struct psk_list_entry *p, *last;
6968 if (psk_len != sizeof(p->psk))
6972 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
6973 " p2p_dev_addr=" MACSTR,
6974 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
6975 if (is_zero_ether_addr(p2p_dev_addr))
6976 p2p_dev_addr = NULL;
6978 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
6982 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
6983 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
6984 /* To be added to persistent group once created */
6985 if (wpa_s->global->add_psk == NULL) {
6986 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
6987 if (wpa_s->global->add_psk == NULL)
6990 p = wpa_s->global->add_psk;
6993 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6996 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6998 os_memcpy(p->psk, psk, psk_len);
7002 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7003 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7007 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7010 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7014 p = os_zalloc(sizeof(*p));
7019 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7022 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7024 os_memcpy(p->psk, psk, psk_len);
7026 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7027 (last = dl_list_last(&persistent->psk_list,
7028 struct psk_list_entry, list))) {
7029 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7030 MACSTR " (p2p=%u) to make room for a new one",
7031 MAC2STR(last->addr), last->p2p);
7032 dl_list_del(&last->list);
7036 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7037 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7038 p2p_dev_addr == NULL);
7040 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7041 MACSTR, MAC2STR(p2p_dev_addr));
7043 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7046 dl_list_add(&persistent->psk_list, &p->list);
7048 if (wpa_s->parent->conf->update_config &&
7049 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7050 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7054 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7055 struct wpa_ssid *s, const u8 *addr,
7060 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7061 if (res > 0 && wpa_s->conf->update_config &&
7062 wpa_config_write(wpa_s->confname, wpa_s->conf))
7063 wpa_dbg(wpa_s, MSG_DEBUG,
7064 "P2P: Failed to update configuration");
7068 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7069 const u8 *peer, int iface_addr)
7071 struct hostapd_data *hapd;
7072 struct hostapd_wpa_psk *psk, *prev, *rem;
7073 struct sta_info *sta;
7075 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7076 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7079 /* Remove per-station PSK entry */
7080 hapd = wpa_s->ap_iface->bss[0];
7082 psk = hapd->conf->ssid.wpa_psk;
7084 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7086 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7087 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7088 MACSTR " iface_addr=%d",
7089 MAC2STR(peer), iface_addr);
7091 prev->next = psk->next;
7093 hapd->conf->ssid.wpa_psk = psk->next;
7103 /* Disconnect from group */
7105 sta = ap_get_sta(hapd, peer);
7107 sta = ap_get_sta_p2p(hapd, peer);
7109 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7110 " (iface_addr=%d) from group",
7111 MAC2STR(peer), iface_addr);
7112 hostapd_drv_sta_deauth(hapd, sta->addr,
7113 WLAN_REASON_DEAUTH_LEAVING);
7114 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7119 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7123 struct wpa_supplicant *w;
7125 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7127 /* Remove from any persistent group */
7128 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7129 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7132 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7133 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7136 /* Remove from any operating group */
7137 for (w = wpa_s->global->ifaces; w; w = w->next)
7138 wpas_p2p_remove_client_go(w, peer, iface_addr);
7142 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7144 struct wpa_supplicant *wpa_s = eloop_ctx;
7145 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7149 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7151 struct wpa_supplicant *wpa_s = eloop_ctx;
7153 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7154 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7158 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7159 struct wpa_ssid *ssid)
7161 struct wpa_supplicant *iface;
7163 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7164 if (!iface->current_ssid ||
7165 iface->current_ssid->frequency == freq ||
7166 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7167 !iface->current_ssid->p2p_group))
7170 /* Remove the connection with least priority */
7171 if (!wpas_is_p2p_prioritized(iface)) {
7172 /* STA connection has priority over existing
7173 * P2P connection, so remove the interface. */
7174 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7175 eloop_register_timeout(0, 0,
7176 wpas_p2p_group_freq_conflict,
7178 /* If connection in progress is P2P connection, do not
7179 * proceed for the connection. */
7185 /* P2P connection has priority, disable the STA network
7187 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7189 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7190 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7191 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7193 /* If P2P connection is in progress, continue
7206 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7208 struct wpa_ssid *ssid = wpa_s->current_ssid;
7210 if (ssid == NULL || !ssid->p2p_group)
7213 if (wpa_s->p2p_last_4way_hs_fail &&
7214 wpa_s->p2p_last_4way_hs_fail == ssid) {
7215 u8 go_dev_addr[ETH_ALEN];
7216 struct wpa_ssid *persistent;
7218 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7220 ssid->ssid_len) <= 0) {
7221 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7225 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7226 MACSTR, MAC2STR(go_dev_addr));
7227 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7230 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7231 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7234 wpa_msg_global(wpa_s->parent, MSG_INFO,
7235 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7238 wpa_s->p2p_last_4way_hs_fail = NULL;
7240 * Remove the group from a timeout to avoid issues with caller
7241 * continuing to use the interface if this is on a P2P group
7244 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7249 wpa_s->p2p_last_4way_hs_fail = ssid;
7254 #ifdef CONFIG_WPS_NFC
7256 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7264 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7268 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7269 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7276 wpabuf_put_be16(ret, wsc_len);
7278 wpabuf_put_buf(ret, wsc);
7279 wpabuf_put_be16(ret, wpabuf_len(p2p));
7280 wpabuf_put_buf(ret, p2p);
7284 wpa_hexdump_buf(MSG_DEBUG,
7285 "P2P: Generated NFC connection handover message", ret);
7289 tmp = ndef_build_p2p(ret);
7292 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7302 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7303 struct wpa_ssid **ssid, u8 *go_dev_addr)
7305 struct wpa_supplicant *iface;
7308 os_memset(go_dev_addr, 0, ETH_ALEN);
7311 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7312 if (iface->wpa_state < WPA_ASSOCIATING ||
7313 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7314 !iface->current_ssid->p2p_group ||
7315 iface->current_ssid->mode != WPAS_MODE_INFRA)
7318 *ssid = iface->current_ssid;
7320 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7321 return iface->assoc_freq;
7327 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7330 struct wpabuf *wsc, *p2p;
7331 struct wpa_ssid *ssid;
7332 u8 go_dev_addr[ETH_ALEN];
7333 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7335 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7336 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7340 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7341 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7342 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7343 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7347 if (cli_freq == 0) {
7348 wsc = wps_build_nfc_handover_req_p2p(
7349 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7352 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7353 go_dev_addr, ssid ? ssid->ssid : NULL,
7354 ssid ? ssid->ssid_len : 0);
7356 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7360 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7363 struct wpabuf *wsc, *p2p;
7364 struct wpa_ssid *ssid;
7365 u8 go_dev_addr[ETH_ALEN];
7366 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7368 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7371 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7372 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7373 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7376 if (cli_freq == 0) {
7377 wsc = wps_build_nfc_handover_sel_p2p(
7379 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7380 DEV_PW_NFC_CONNECTION_HANDOVER,
7381 wpa_s->conf->wps_nfc_dh_pubkey,
7382 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7385 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7386 go_dev_addr, ssid ? ssid->ssid : NULL,
7387 ssid ? ssid->ssid_len : 0);
7389 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7393 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7394 struct p2p_nfc_params *params)
7396 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7397 "connection handover (freq=%d)",
7400 if (params->go_freq && params->go_ssid_len) {
7401 wpa_s->p2p_wps_method = WPS_NFC;
7402 wpa_s->pending_join_wps_method = WPS_NFC;
7403 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7404 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7406 return wpas_p2p_join_start(wpa_s, params->go_freq,
7408 params->go_ssid_len);
7411 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7412 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
7413 params->go_freq, -1, 0, 1, 1);
7417 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
7418 struct p2p_nfc_params *params, int tag)
7420 int res, persistent;
7421 struct wpa_ssid *ssid;
7423 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7424 "connection handover");
7425 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7426 ssid = wpa_s->current_ssid;
7429 if (ssid->mode != WPAS_MODE_P2P_GO)
7431 if (wpa_s->ap_iface == NULL)
7435 if (wpa_s == NULL) {
7436 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7440 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7441 DEV_PW_NFC_CONNECTION_HANDOVER &&
7442 !wpa_s->parent->p2p_oob_dev_pw) {
7443 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7446 res = wpas_ap_wps_add_nfc_pw(
7447 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7448 wpa_s->parent->p2p_oob_dev_pw,
7449 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7450 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
7455 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7459 if (!params->peer ||
7460 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7463 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7464 " to join", MAC2STR(params->peer->p2p_device_addr));
7466 wpa_s->global->p2p_invite_group = wpa_s;
7467 persistent = ssid->p2p_persistent_group &&
7468 wpas_p2p_get_persistent(wpa_s->parent,
7469 params->peer->p2p_device_addr,
7470 ssid->ssid, ssid->ssid_len);
7471 wpa_s->parent->pending_invite_ssid_id = -1;
7473 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7474 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7475 ssid->ssid, ssid->ssid_len, ssid->frequency,
7476 wpa_s->global->p2p_dev_addr, persistent, 0,
7477 wpa_s->parent->p2p_oob_dev_pw_id);
7481 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
7482 struct p2p_nfc_params *params,
7485 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7486 "connection handover");
7487 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7488 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
7489 forced_freq, -1, 0, 1, 1);
7493 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
7494 struct p2p_nfc_params *params,
7499 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7500 "connection handover");
7501 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7502 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
7503 forced_freq, -1, 0, 1, 1);
7507 res = wpas_p2p_listen(wpa_s, 60);
7509 p2p_unauthorize(wpa_s->global->p2p,
7510 params->peer->p2p_device_addr);
7517 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7518 const struct wpabuf *data,
7519 int sel, int tag, int forced_freq)
7521 const u8 *pos, *end;
7523 struct p2p_nfc_params params;
7526 os_memset(¶ms, 0, sizeof(params));
7529 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7531 pos = wpabuf_head(data);
7532 end = pos + wpabuf_len(data);
7534 if (end - pos < 2) {
7535 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7539 len = WPA_GET_BE16(pos);
7541 if (pos + len > end) {
7542 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7546 params.wsc_attr = pos;
7547 params.wsc_len = len;
7550 if (end - pos < 2) {
7551 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7555 len = WPA_GET_BE16(pos);
7557 if (pos + len > end) {
7558 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7562 params.p2p_attr = pos;
7563 params.p2p_len = len;
7566 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7567 params.wsc_attr, params.wsc_len);
7568 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7569 params.p2p_attr, params.p2p_len);
7571 wpa_hexdump(MSG_DEBUG,
7572 "P2P: Ignored extra data after P2P attributes",
7576 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
7580 if (params.next_step == NO_ACTION)
7583 if (params.next_step == BOTH_GO) {
7584 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7585 MAC2STR(params.peer->p2p_device_addr));
7589 if (params.next_step == PEER_CLIENT) {
7590 if (!is_zero_ether_addr(params.go_dev_addr)) {
7591 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7592 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7594 MAC2STR(params.peer->p2p_device_addr),
7596 MAC2STR(params.go_dev_addr),
7597 wpa_ssid_txt(params.go_ssid,
7598 params.go_ssid_len));
7600 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7601 "peer=" MACSTR " freq=%d",
7602 MAC2STR(params.peer->p2p_device_addr),
7608 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
7609 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7610 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7614 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7615 wpa_s->p2p_oob_dev_pw = NULL;
7617 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7618 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7623 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7624 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7625 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7626 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7627 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7628 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7629 wpa_s->p2p_peer_oob_pk_hash_known = 1;
7633 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7634 "peer OOB Device Password Id %u", id);
7637 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7638 "Device Password Id %u", id);
7639 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7640 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7641 params.oob_dev_pw_len -
7642 WPS_OOB_PUBKEY_HASH_LEN - 2);
7643 wpa_s->p2p_oob_dev_pw_id = id;
7644 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7645 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7646 params.oob_dev_pw_len -
7647 WPS_OOB_PUBKEY_HASH_LEN - 2);
7648 if (wpa_s->p2p_oob_dev_pw == NULL)
7651 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7652 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7653 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7656 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7657 "without Device Password");
7658 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7661 switch (params.next_step) {
7665 /* already covered above */
7668 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
7670 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
7672 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
7674 /* TODO: use own OOB Dev Pw */
7675 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
7682 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
7683 const struct wpabuf *data, int forced_freq)
7685 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7688 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
7692 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7693 const struct wpabuf *req,
7694 const struct wpabuf *sel, int forced_freq)
7699 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7702 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7704 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7705 wpabuf_head(req), wpabuf_len(req));
7706 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7707 wpabuf_head(sel), wpabuf_len(sel));
7709 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
7710 tmp = ndef_parse_p2p(init ? sel : req);
7712 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7716 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7724 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7727 int go_intent = wpa_s->conf->p2p_go_intent;
7728 struct wpa_supplicant *iface;
7730 if (wpa_s->global->p2p == NULL)
7734 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7735 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7737 if (!iface->ap_iface)
7739 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7741 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7743 if (wpa_s->p2p_nfc_tag_enabled)
7744 wpas_p2p_remove_pending_group_interface(wpa_s);
7745 wpa_s->p2p_nfc_tag_enabled = 0;
7749 if (wpa_s->global->p2p_disabled)
7752 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7753 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7754 wpa_s->conf->wps_nfc_dev_pw == NULL ||
7755 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7756 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7757 "to allow static handover cases");
7761 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7763 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7764 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7765 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7766 if (wpa_s->p2p_oob_dev_pw == NULL)
7768 wpa_s->p2p_peer_oob_pk_hash_known = 0;
7770 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7771 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7773 * P2P Group Interface present and the command came on group
7774 * interface, so enable the token for the current interface.
7776 wpa_s->create_p2p_iface = 0;
7778 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7781 if (wpa_s->create_p2p_iface) {
7782 enum wpa_driver_if_type iftype;
7783 /* Prepare to add a new interface for the group */
7784 iftype = WPA_IF_P2P_GROUP;
7785 if (go_intent == 15)
7786 iftype = WPA_IF_P2P_GO;
7787 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7788 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7789 "interface for the group");
7793 if_addr = wpa_s->pending_interface_addr;
7795 if_addr = wpa_s->own_addr;
7797 wpa_s->p2p_nfc_tag_enabled = enabled;
7799 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7800 struct hostapd_data *hapd;
7801 if (iface->ap_iface == NULL)
7803 hapd = iface->ap_iface->bss[0];
7804 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7805 hapd->conf->wps_nfc_dh_pubkey =
7806 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7807 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7808 hapd->conf->wps_nfc_dh_privkey =
7809 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7810 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
7811 hapd->conf->wps_nfc_dev_pw =
7812 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7813 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7815 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
7816 wpa_dbg(iface, MSG_DEBUG,
7817 "P2P: Failed to enable NFC Tag for GO");
7820 p2p_set_authorized_oob_dev_pw_id(
7821 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
7827 #endif /* CONFIG_WPS_NFC */
7830 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
7831 struct wpa_used_freq_data *freqs,
7834 u8 curr_chan, cand, chan;
7837 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
7838 for (i = 0, cand = 0; i < num; i++) {
7839 ieee80211_freq_to_chan(freqs[i].freq, &chan);
7840 if (curr_chan == chan) {
7845 if (chan == 1 || chan == 6 || chan == 11)
7850 wpa_dbg(wpa_s, MSG_DEBUG,
7851 "P2P: Update Listen channel to %u baased on operating channel",
7853 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
7858 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
7860 struct wpa_used_freq_data *freqs;
7861 unsigned int num = wpa_s->num_multichan_concurrent;
7863 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7867 * If possible, optimize the Listen channel to be a channel that is
7868 * already used by one of the other interfaces.
7870 if (!wpa_s->conf->p2p_optimize_listen_chan)
7873 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
7876 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7880 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7882 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7887 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
7889 if (wpa_s == wpa_s->parent)
7890 wpas_p2p_group_remove(wpa_s, "*");
7891 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
7892 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
7893 "the management interface is being removed");
7894 wpas_p2p_deinit_global(wpa_s->global);
7899 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
7901 if (wpa_s->ap_iface->bss)
7902 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
7903 wpas_p2p_group_deinit(wpa_s);