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"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "rsn_supp/wpa.h"
28 #include "wpa_supplicant_i.h"
31 #include "config_ssid.h"
36 #include "offchannel.h"
37 #include "wps_supplicant.h"
38 #include "p2p_supplicant.h"
39 #include "wifi_display.h"
43 * How many times to try to scan to find the GO before giving up on join
46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
51 * Defines time interval in seconds when a GO needs to evacuate a frequency that
52 * it is currently using, but is no longer valid for P2P use cases.
54 #define P2P_GO_FREQ_CHANGE_TIME 5
57 * Defines CSA parameters which are used when GO evacuates the no longer valid
58 * channel (and if the driver supports channel switch).
60 #define P2P_GO_CSA_COUNT 7
61 #define P2P_GO_CSA_BLOCK_TX 0
63 #ifndef P2P_MAX_CLIENT_IDLE
65 * How many seconds to try to reconnect to the GO when connection in P2P client
68 #define P2P_MAX_CLIENT_IDLE 10
69 #endif /* P2P_MAX_CLIENT_IDLE */
71 #ifndef P2P_MAX_INITIAL_CONN_WAIT
73 * How many seconds to wait for initial 4-way handshake to get completed after
74 * WPS provisioning step or after the re-invocation of a persistent group on a
77 #define P2P_MAX_INITIAL_CONN_WAIT 10
78 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
80 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
82 * How many seconds to wait for initial 4-way handshake to get completed after
83 * WPS provisioning step on the GO. This controls the extra time the P2P
84 * operation is considered to be in progress (e.g., to delay other scans) after
85 * WPS provisioning has been completed on the GO during group formation.
87 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
88 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
90 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
92 * How many seconds to wait for initial 4-way handshake to get completed after
93 * re-invocation of a persistent group on the GO when the client is expected
94 * to connect automatically (no user interaction).
96 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
97 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
99 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
102 * How many seconds to wait to re-attempt to move GOs, in case previous attempt
105 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
107 enum p2p_group_removal_reason {
108 P2P_GROUP_REMOVAL_UNKNOWN,
109 P2P_GROUP_REMOVAL_SILENT,
110 P2P_GROUP_REMOVAL_FORMATION_FAILED,
111 P2P_GROUP_REMOVAL_REQUESTED,
112 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
113 P2P_GROUP_REMOVAL_UNAVAILABLE,
114 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
115 P2P_GROUP_REMOVAL_PSK_FAILURE,
116 P2P_GROUP_REMOVAL_FREQ_CONFLICT,
117 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
121 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
122 static struct wpa_supplicant *
123 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
125 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
126 const u8 *ssid, size_t ssid_len);
127 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
128 const u8 *ssid, size_t ssid_len);
129 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
130 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
131 const u8 *dev_addr, enum p2p_wps_method wps_method,
132 int auto_join, int freq,
133 const u8 *ssid, size_t ssid_len);
134 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
135 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
136 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
137 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
138 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
140 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
141 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
143 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
144 static void wpas_stop_listen(void *ctx);
145 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
146 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
147 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
148 enum wpa_driver_if_type type);
149 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
150 int already_deleted);
151 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
152 struct wpa_used_freq_data *freqs,
154 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
155 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
157 wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
158 struct wpa_used_freq_data *freqs, unsigned int num,
159 enum wpas_p2p_channel_update_trig trig);
160 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
164 * Get the number of concurrent channels that the HW can operate, but that are
165 * currently not in use by any of the wpa_supplicant interfaces.
167 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
172 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
176 num = get_shared_radio_freqs(wpa_s, freqs,
177 wpa_s->num_multichan_concurrent);
180 unused = wpa_s->num_multichan_concurrent - num;
181 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
187 * Get the frequencies that are currently in use by one or more of the virtual
188 * interfaces, and that are also valid for P2P operation.
191 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
192 struct wpa_used_freq_data *p2p_freqs,
195 struct wpa_used_freq_data *freqs;
196 unsigned int num, i, j;
198 freqs = os_calloc(wpa_s->num_multichan_concurrent,
199 sizeof(struct wpa_used_freq_data));
203 num = get_shared_radio_freqs_data(wpa_s, freqs,
204 wpa_s->num_multichan_concurrent);
206 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
208 for (i = 0, j = 0; i < num && j < len; i++) {
209 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
210 p2p_freqs[j++] = freqs[i];
215 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
221 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
224 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
227 /* Use the wpa_s used to control the P2P Device operation */
228 wpa_s = wpa_s->global->p2p_init_wpa_s;
230 if (wpa_s->conf->p2p_ignore_shared_freq &&
231 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
232 wpas_p2p_num_unused_channels(wpa_s) > 0) {
233 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
237 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
241 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
242 struct wpa_scan_results *scan_res)
246 if (wpa_s->p2p_scan_work) {
247 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
248 wpa_s->p2p_scan_work = NULL;
249 radio_work_done(work);
252 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
255 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
256 (int) scan_res->num);
258 for (i = 0; i < scan_res->num; i++) {
259 struct wpa_scan_res *bss = scan_res->res[i];
260 struct os_reltime time_tmp_age, entry_ts;
264 time_tmp_age.sec = bss->age / 1000;
265 time_tmp_age.usec = (bss->age % 1000) * 1000;
266 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
268 ies = (const u8 *) (bss + 1);
269 ies_len = bss->ie_len;
270 if (bss->beacon_ie_len > 0 &&
271 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
272 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
273 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
274 MACSTR, MAC2STR(bss->bssid));
276 ies_len = bss->beacon_ie_len;
280 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
281 bss->freq, &entry_ts, bss->level,
286 p2p_scan_res_handled(wpa_s->global->p2p);
290 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
292 struct wpa_supplicant *wpa_s = work->wpa_s;
293 struct wpa_driver_scan_params *params = work->ctx;
297 if (!work->started) {
298 wpa_scan_free_params(params);
302 wpa_s->p2p_scan_work = NULL;
306 ret = wpa_drv_scan(wpa_s, params);
307 wpa_scan_free_params(params);
310 radio_work_done(work);
311 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
315 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
316 os_get_reltime(&wpa_s->scan_trigger_time);
317 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
318 wpa_s->own_scan_requested = 1;
319 wpa_s->p2p_scan_work = work;
323 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
326 if (wpa_s->global->p2p_24ghz_social_channels &&
327 (freq == 2412 || freq == 2437 || freq == 2462)) {
329 * Search all social channels regardless of whether these have
330 * been disabled for P2P operating channel use to avoid missing
335 return p2p_supported_freq(wpa_s->global->p2p, freq);
339 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
340 unsigned int num_req_dev_types,
341 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
343 struct wpa_supplicant *wpa_s = ctx;
344 struct wpa_driver_scan_params *params = NULL;
345 struct wpabuf *wps_ie, *ies;
346 unsigned int num_channels = 0;
347 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
351 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
354 if (wpa_s->p2p_scan_work) {
355 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
359 params = os_zalloc(sizeof(*params));
363 /* P2P Wildcard SSID */
364 params->num_ssids = 1;
365 n = os_malloc(P2P_WILDCARD_SSID_LEN);
368 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
369 params->ssids[0].ssid = n;
370 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
372 wpa_s->wps->dev.p2p = 1;
373 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
374 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
375 num_req_dev_types, req_dev_types);
379 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
380 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
385 wpabuf_put_buf(ies, wps_ie);
388 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
390 params->p2p_probe = 1;
391 n = os_malloc(wpabuf_len(ies));
396 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
397 params->extra_ies = n;
398 params->extra_ies_len = wpabuf_len(ies);
402 case P2P_SCAN_SOCIAL:
403 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
405 if (params->freqs == NULL)
407 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
408 if (wpas_p2p_search_social_channel(
409 wpa_s, social_channels_freq[i]))
410 params->freqs[num_channels++] =
411 social_channels_freq[i];
413 params->freqs[num_channels++] = 0;
417 case P2P_SCAN_SPECIFIC:
418 params->freqs = os_calloc(2, sizeof(int));
419 if (params->freqs == NULL)
421 params->freqs[0] = freq;
422 params->freqs[1] = 0;
424 case P2P_SCAN_SOCIAL_PLUS_ONE:
425 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
427 if (params->freqs == NULL)
429 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
430 if (wpas_p2p_search_social_channel(
431 wpa_s, social_channels_freq[i]))
432 params->freqs[num_channels++] =
433 social_channels_freq[i];
435 if (p2p_supported_freq(wpa_s->global->p2p, freq))
436 params->freqs[num_channels++] = freq;
437 params->freqs[num_channels++] = 0;
441 radio_remove_works(wpa_s, "p2p-scan", 0);
442 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
448 wpa_scan_free_params(params);
453 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
455 switch (p2p_group_interface) {
456 case P2P_GROUP_INTERFACE_PENDING:
457 return WPA_IF_P2P_GROUP;
458 case P2P_GROUP_INTERFACE_GO:
459 return WPA_IF_P2P_GO;
460 case P2P_GROUP_INTERFACE_CLIENT:
461 return WPA_IF_P2P_CLIENT;
464 return WPA_IF_P2P_GROUP;
468 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
470 size_t ssid_len, int *go)
474 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
475 for (s = wpa_s->conf->ssid; s; s = s->next) {
476 if (s->disabled != 0 || !s->p2p_group ||
477 s->ssid_len != ssid_len ||
478 os_memcmp(ssid, s->ssid, ssid_len) != 0)
480 if (s->mode == WPAS_MODE_P2P_GO &&
481 s != wpa_s->current_ssid)
484 *go = s->mode == WPAS_MODE_P2P_GO;
493 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
495 struct wpa_supplicant *wpa_s = eloop_ctx;
496 wpa_printf(MSG_DEBUG,
497 "P2P: Complete previously requested removal of %s",
499 wpas_p2p_disconnect(wpa_s);
503 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
504 struct wpa_supplicant *calling_wpa_s)
506 if (calling_wpa_s == wpa_s && wpa_s &&
507 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
509 * The calling wpa_s instance is going to be removed. Do that
510 * from an eloop callback to keep the instance available until
511 * the caller has returned. This my be needed, e.g., to provide
512 * control interface responses on the per-interface socket.
514 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
520 return wpas_p2p_disconnect(wpa_s);
524 /* Determine total number of clients in active groups where we are the GO */
525 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
527 unsigned int count = 0;
530 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
531 for (s = wpa_s->conf->ssid; s; s = s->next) {
532 wpa_printf(MSG_DEBUG,
533 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
534 wpa_s, s, s->disabled, s->p2p_group,
536 if (!s->disabled && s->p2p_group &&
537 s->mode == WPAS_MODE_P2P_GO) {
538 count += p2p_get_group_num_members(
548 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
550 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
551 !wpa_s->current_ssid->disabled &&
552 wpa_s->current_ssid->p2p_group &&
553 wpa_s->current_ssid->p2p_persistent_group;
557 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
559 return p2p_is_active_persistent_group(wpa_s) &&
560 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
564 /* Find an interface for a P2P group where we are the GO */
565 static struct wpa_supplicant *
566 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
568 struct wpa_supplicant *save = NULL;
573 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
574 if (!p2p_is_active_persistent_go(wpa_s))
577 /* Prefer a group with connected clients */
578 if (p2p_get_group_num_members(wpa_s->p2p_group))
583 /* No group with connected clients, so pick the one without (if any) */
588 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
590 return p2p_is_active_persistent_group(wpa_s) &&
591 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
595 /* Find an interface for a P2P group where we are the P2P Client */
596 static struct wpa_supplicant *
597 wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
599 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
600 if (p2p_is_active_persistent_cli(wpa_s))
608 /* Find an active P2P group where we are the GO */
609 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
612 struct wpa_supplicant *go = wpas_p2p_get_go_group(wpa_s);
617 os_memcpy(bssid, go->own_addr, ETH_ALEN);
618 return go->current_ssid;
622 /* Find a persistent group where we are the GO */
623 static struct wpa_ssid *
624 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
628 for (s = wpa_s->conf->ssid; s; s = s->next) {
629 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
637 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
639 struct wpa_supplicant *wpa_s = ctx;
641 u8 conncap = P2PS_SETUP_NONE;
642 unsigned int owned_members = 0;
643 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
644 struct wpa_ssid *persistent_go;
645 int p2p_no_group_iface;
647 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
650 * For non-concurrent capable devices:
651 * If persistent_go, then no new.
652 * If GO, then no client.
653 * If client, then no GO.
655 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
657 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
658 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
659 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
660 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
662 wpa_printf(MSG_DEBUG,
663 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
664 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
666 /* If not concurrent, restrict our choices */
667 if (p2p_no_group_iface) {
668 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
671 return P2PS_SETUP_NONE;
674 if (role == P2PS_SETUP_CLIENT ||
675 incoming == P2PS_SETUP_GROUP_OWNER ||
676 p2p_client_limit_reached(go_wpa_s->p2p_group))
677 return P2PS_SETUP_NONE;
679 return P2PS_SETUP_GROUP_OWNER;
683 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
685 return P2PS_SETUP_GROUP_OWNER |
687 if (incoming == P2PS_SETUP_NEW) {
690 if (os_get_random(&r, sizeof(r)) < 0 ||
692 return P2PS_SETUP_CLIENT;
693 return P2PS_SETUP_GROUP_OWNER;
699 /* If a required role has been specified, handle it here */
700 if (role && role != P2PS_SETUP_NEW) {
702 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
703 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
705 * Peer has an active GO, so if the role allows it and
706 * we do not have any active roles, become client.
708 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
710 return P2PS_SETUP_CLIENT;
714 case P2PS_SETUP_NONE:
719 case P2PS_SETUP_GROUP_OWNER:
721 * Must be a complimentary role - cannot be a client to
722 * more than one peer.
724 if (incoming == role || cli_wpa_s)
725 return P2PS_SETUP_NONE;
727 return P2PS_SETUP_CLIENT;
729 case P2PS_SETUP_CLIENT:
730 /* Must be a complimentary role */
731 if (incoming != role) {
732 conncap = P2PS_SETUP_GROUP_OWNER;
737 return P2PS_SETUP_NONE;
742 * For now, we only will support ownership of one group, and being a
743 * client of one group. Therefore, if we have either an existing GO
744 * group, or an existing client group, we will not do a new GO
745 * negotiation, but rather try to re-use the existing groups.
748 case P2PS_SETUP_NONE:
751 conncap = P2PS_SETUP_GROUP_OWNER;
752 else if (!owned_members)
753 conncap = P2PS_SETUP_NEW;
754 else if (incoming == P2PS_SETUP_NONE)
755 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
757 conncap = P2PS_SETUP_CLIENT;
760 case P2PS_SETUP_CLIENT:
761 conncap = P2PS_SETUP_GROUP_OWNER;
764 case P2PS_SETUP_GROUP_OWNER:
766 conncap = P2PS_SETUP_CLIENT;
769 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
770 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
772 * Peer has an active GO, so if the role allows it and
773 * we do not have any active roles, become client.
775 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s && !cli_wpa_s)
776 return P2PS_SETUP_CLIENT;
779 conncap = P2PS_SETUP_GROUP_OWNER;
783 if (os_get_random(&r, sizeof(r)) < 0 ||
785 conncap = P2PS_SETUP_CLIENT;
787 conncap = P2PS_SETUP_GROUP_OWNER;
792 return P2PS_SETUP_NONE;
796 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
797 (!incoming && (conncap & P2PS_SETUP_NEW))) {
798 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
799 conncap &= ~P2PS_SETUP_GROUP_OWNER;
801 s = wpas_p2p_get_persistent_go(wpa_s);
802 if (!s && !go_wpa_s && p2p_no_group_iface) {
803 p2p_set_intended_addr(wpa_s->global->p2p,
805 } else if (!s && !go_wpa_s) {
806 if (wpas_p2p_add_group_interface(wpa_s,
807 WPA_IF_P2P_GO) < 0) {
808 wpa_printf(MSG_ERROR,
809 "P2P: Failed to allocate a new interface for the group");
810 return P2PS_SETUP_NONE;
812 wpa_s->global->pending_group_iface_for_p2ps = 1;
813 p2p_set_intended_addr(wpa_s->global->p2p,
814 wpa_s->pending_interface_addr);
822 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
823 enum p2p_group_removal_reason removal_reason)
825 struct wpa_ssid *ssid;
829 ssid = wpa_s->current_ssid;
832 * The current SSID was not known, but there may still be a
833 * pending P2P group interface waiting for provisioning or a
834 * P2P group that is trying to reconnect.
836 ssid = wpa_s->conf->ssid;
838 if (ssid->p2p_group && ssid->disabled != 2)
843 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
845 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
850 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
852 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
853 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
854 wpa_s->reassociate = 0;
855 wpa_s->disconnected = 1;
860 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
861 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
863 if (os_strcmp(gtype, "client") == 0) {
864 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
865 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
867 wpa_printf(MSG_DEBUG,
868 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
869 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
870 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
875 if (wpa_s->cross_connect_in_use) {
876 wpa_s->cross_connect_in_use = 0;
877 wpa_msg_global(wpa_s->parent, MSG_INFO,
878 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
879 wpa_s->ifname, wpa_s->cross_connect_uplink);
881 switch (removal_reason) {
882 case P2P_GROUP_REMOVAL_REQUESTED:
883 reason = " reason=REQUESTED";
885 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
886 reason = " reason=FORMATION_FAILED";
888 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
889 reason = " reason=IDLE";
891 case P2P_GROUP_REMOVAL_UNAVAILABLE:
892 reason = " reason=UNAVAILABLE";
894 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
895 reason = " reason=GO_ENDING_SESSION";
897 case P2P_GROUP_REMOVAL_PSK_FAILURE:
898 reason = " reason=PSK_FAILURE";
900 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
901 reason = " reason=FREQ_CONFLICT";
907 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
908 wpa_msg_global(wpa_s->parent, MSG_INFO,
909 P2P_EVENT_GROUP_REMOVED "%s %s%s",
910 wpa_s->ifname, gtype, reason);
913 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
914 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
915 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
916 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
917 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
918 wpa_s->parent, NULL) > 0) {
919 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
921 wpa_s->p2p_in_provisioning = 0;
922 wpas_p2p_group_formation_failed(wpa_s, 1);
925 wpa_s->p2p_in_invitation = 0;
926 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
927 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
930 * Make sure wait for the first client does not remain active after the
931 * group has been removed.
933 wpa_s->global->p2p_go_wait_client.sec = 0;
935 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
936 struct wpa_global *global;
938 enum wpa_driver_if_type type;
939 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
941 global = wpa_s->global;
942 ifname = os_strdup(wpa_s->ifname);
943 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
944 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
945 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
946 wpa_s = global->ifaces;
948 wpa_drv_if_remove(wpa_s, type, ifname);
953 if (!wpa_s->p2p_go_group_formation_completed) {
954 wpa_s->global->p2p_group_formation = NULL;
955 wpa_s->p2p_in_provisioning = 0;
958 wpa_s->show_group_started = 0;
959 os_free(wpa_s->go_params);
960 wpa_s->go_params = NULL;
962 os_free(wpa_s->p2p_group_common_freqs);
963 wpa_s->p2p_group_common_freqs = NULL;
964 wpa_s->p2p_group_common_freqs_num = 0;
966 wpa_s->waiting_presence_resp = 0;
968 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
969 if (ssid && (ssid->p2p_group ||
970 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
971 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
973 if (ssid == wpa_s->current_ssid) {
974 wpa_sm_set_config(wpa_s->wpa, NULL);
975 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
976 wpa_s->current_ssid = NULL;
979 * Networks objects created during any P2P activities are not
980 * exposed out as they might/will confuse certain non-P2P aware
981 * applications since these network objects won't behave like
984 * Likewise, we don't send out network removed signals for such
987 wpa_config_remove_network(wpa_s->conf, id);
988 wpa_supplicant_clear_status(wpa_s);
989 wpa_supplicant_cancel_sched_scan(wpa_s);
991 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
995 wpa_supplicant_ap_deinit(wpa_s);
997 wpa_drv_deinit_p2p_cli(wpa_s);
999 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1005 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1007 const u8 *ssid, size_t ssid_len)
1009 struct wpa_bss *bss;
1015 if (wpa_s->go_params)
1016 bssid = wpa_s->go_params->peer_interface_addr;
1018 bssid = wpa_s->bssid;
1020 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
1021 if (bss == NULL && wpa_s->go_params &&
1022 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1023 bss = wpa_bss_get_p2p_dev_addr(
1024 wpa_s, wpa_s->go_params->peer_device_addr);
1026 u8 iface_addr[ETH_ALEN];
1027 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1029 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1032 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1033 "group is persistent - BSS " MACSTR " not found",
1038 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1040 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1041 P2P_IE_VENDOR_TYPE);
1043 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1044 "group is persistent - BSS " MACSTR
1045 " did not include P2P IE", MAC2STR(bssid));
1046 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1047 (u8 *) (bss + 1), bss->ie_len);
1048 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1049 ((u8 *) bss + 1) + bss->ie_len,
1050 bss->beacon_ie_len);
1054 group_capab = p2p_get_group_capab(p2p);
1055 addr = p2p_get_go_dev_addr(p2p);
1056 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1057 "group_capab=0x%x", group_capab);
1059 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1060 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1063 os_memset(go_dev_addr, 0, ETH_ALEN);
1066 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1067 "go_dev_addr=" MACSTR,
1068 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1070 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1074 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1075 struct wpa_ssid *ssid,
1076 const u8 *go_dev_addr)
1081 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1082 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1083 for (s = wpa_s->conf->ssid; s; s = s->next) {
1084 if (s->disabled == 2 &&
1085 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1086 s->ssid_len == ssid->ssid_len &&
1087 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1092 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1094 if (ssid->passphrase && !s->passphrase)
1096 else if (ssid->passphrase && s->passphrase &&
1097 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1100 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1103 s = wpa_config_add_network(wpa_s->conf);
1108 * Instead of network_added we emit persistent_group_added
1109 * notification. Also to keep the defense checks in
1110 * persistent_group obj registration method, we set the
1111 * relevant flags in s to designate it as a persistent group.
1114 s->p2p_persistent_group = 1;
1115 wpas_notify_persistent_group_added(wpa_s, s);
1116 wpa_config_set_network_defaults(s);
1120 s->p2p_persistent_group = 1;
1123 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1124 s->mode = ssid->mode;
1125 s->auth_alg = WPA_AUTH_ALG_OPEN;
1126 s->key_mgmt = WPA_KEY_MGMT_PSK;
1127 s->proto = WPA_PROTO_RSN;
1128 s->pairwise_cipher = WPA_CIPHER_CCMP;
1130 if (ssid->passphrase) {
1131 os_free(s->passphrase);
1132 s->passphrase = os_strdup(ssid->passphrase);
1134 if (ssid->psk_set) {
1136 os_memcpy(s->psk, ssid->psk, 32);
1138 if (s->passphrase && !s->psk_set)
1139 wpa_config_update_psk(s);
1140 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1142 s->ssid = os_malloc(ssid->ssid_len);
1145 s->ssid_len = ssid->ssid_len;
1146 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1148 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1149 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1150 wpa_s->global->add_psk = NULL;
1154 if (changed && wpa_s->conf->update_config &&
1155 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1156 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1163 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1166 struct wpa_ssid *ssid, *s;
1170 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1172 ssid = wpa_s->current_ssid;
1173 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1174 !ssid->p2p_persistent_group)
1177 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1178 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1181 if (s->ssid_len == ssid->ssid_len &&
1182 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1189 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1190 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1194 if (i == s->num_p2p_clients - 1)
1195 return; /* already the most recent entry */
1197 /* move the entry to mark it most recent */
1198 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1199 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1200 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1201 os_memcpy(s->p2p_client_list +
1202 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1204 os_memset(s->p2p_client_list +
1205 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1211 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1212 n = os_realloc_array(s->p2p_client_list,
1213 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1216 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1218 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1220 s->p2p_client_list = n;
1221 s->num_p2p_clients++;
1222 } else if (!found && s->p2p_client_list) {
1223 /* Not enough room for an additional entry - drop the oldest
1225 os_memmove(s->p2p_client_list,
1226 s->p2p_client_list + 2 * ETH_ALEN,
1227 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1228 os_memcpy(s->p2p_client_list +
1229 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1231 os_memset(s->p2p_client_list +
1232 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1236 if (p2p_wpa_s->conf->update_config &&
1237 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1238 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1242 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1243 int go, struct wpa_ssid *ssid, int freq,
1244 const u8 *psk, const char *passphrase,
1245 const u8 *go_dev_addr, int persistent,
1248 const char *ssid_txt;
1252 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1257 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1261 if (passphrase && passphrase[0] == '\0')
1265 * Include PSK/passphrase only in the control interface message and
1266 * leave it out from the debug log entry.
1268 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1269 P2P_EVENT_GROUP_STARTED
1270 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1272 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1273 psk ? " psk=" : "", psk_txt,
1274 passphrase ? " passphrase=\"" : "",
1275 passphrase ? passphrase : "",
1276 passphrase ? "\"" : "",
1277 MAC2STR(go_dev_addr),
1278 persistent ? " [PERSISTENT]" : "", extra);
1279 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1280 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1281 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1282 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1287 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1288 int success, int already_deleted)
1290 struct wpa_ssid *ssid;
1293 u8 go_dev_addr[ETH_ALEN];
1294 int network_id = -1;
1297 * This callback is likely called for the main interface. Update wpa_s
1298 * to use the group interface if a new interface was created for the
1301 if (wpa_s->global->p2p_group_formation)
1302 wpa_s = wpa_s->global->p2p_group_formation;
1303 if (wpa_s->p2p_go_group_formation_completed) {
1304 wpa_s->global->p2p_group_formation = NULL;
1305 wpa_s->p2p_in_provisioning = 0;
1307 wpa_s->p2p_in_invitation = 0;
1308 wpa_s->group_formation_reported = 1;
1311 wpa_msg_global(wpa_s->parent, MSG_INFO,
1312 P2P_EVENT_GROUP_FORMATION_FAILURE);
1313 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1314 if (already_deleted)
1316 wpas_p2p_group_delete(wpa_s,
1317 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1321 wpa_msg_global(wpa_s->parent, MSG_INFO,
1322 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1324 ssid = wpa_s->current_ssid;
1325 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1326 ssid->mode = WPAS_MODE_P2P_GO;
1327 p2p_group_notif_formation_done(wpa_s->p2p_group);
1328 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1333 client = ssid->mode == WPAS_MODE_INFRA;
1334 if (ssid->mode == WPAS_MODE_P2P_GO) {
1335 persistent = ssid->p2p_persistent_group;
1336 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1339 persistent = wpas_p2p_persistent_group(wpa_s,
1344 client = wpa_s->p2p_group_interface ==
1345 P2P_GROUP_INTERFACE_CLIENT;
1346 os_memset(go_dev_addr, 0, ETH_ALEN);
1349 wpa_s->show_group_started = 0;
1352 * Indicate event only after successfully completed 4-way
1353 * handshake, i.e., when the interface is ready for data
1356 wpa_s->show_group_started = 1;
1358 wpas_p2p_group_started(wpa_s, 1, ssid,
1359 ssid ? ssid->frequency : 0,
1360 ssid && ssid->passphrase == NULL &&
1361 ssid->psk_set ? ssid->psk : NULL,
1362 ssid ? ssid->passphrase : NULL,
1363 go_dev_addr, persistent, "");
1364 wpas_p2p_cross_connect_setup(wpa_s);
1365 wpas_p2p_set_group_idle_timeout(wpa_s);
1369 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1372 os_free(wpa_s->global->add_psk);
1373 wpa_s->global->add_psk = NULL;
1375 if (network_id < 0 && ssid)
1376 network_id = ssid->id;
1378 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1379 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1384 struct send_action_work {
1390 unsigned int wait_time;
1395 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1398 struct wpa_supplicant *wpa_s = eloop_ctx;
1400 if (!wpa_s->p2p_send_action_work)
1403 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1404 os_free(wpa_s->p2p_send_action_work->ctx);
1405 radio_work_done(wpa_s->p2p_send_action_work);
1406 wpa_s->p2p_send_action_work = NULL;
1410 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1412 if (wpa_s->p2p_send_action_work) {
1413 struct send_action_work *awork;
1414 awork = wpa_s->p2p_send_action_work->ctx;
1415 if (awork->wait_time == 0) {
1417 radio_work_done(wpa_s->p2p_send_action_work);
1418 wpa_s->p2p_send_action_work = NULL;
1421 * In theory, this should not be needed, but number of
1422 * places in the P2P code is still using non-zero wait
1423 * time for the last Action frame in the sequence and
1424 * some of these do not call send_action_done().
1426 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1428 eloop_register_timeout(
1429 0, awork->wait_time * 1000,
1430 wpas_p2p_send_action_work_timeout,
1437 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1439 const u8 *dst, const u8 *src,
1441 const u8 *data, size_t data_len,
1442 enum offchannel_send_action_result
1445 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1447 wpas_p2p_action_tx_clear(wpa_s);
1449 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1453 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1454 res = P2P_SEND_ACTION_SUCCESS;
1456 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1457 res = P2P_SEND_ACTION_NO_ACK;
1459 case OFFCHANNEL_SEND_ACTION_FAILED:
1460 res = P2P_SEND_ACTION_FAILED;
1464 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1466 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1467 wpa_s->pending_pd_before_join &&
1468 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1469 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1470 wpa_s->p2p_fallback_to_go_neg) {
1471 wpa_s->pending_pd_before_join = 0;
1472 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1473 "during p2p_connect-auto");
1474 wpa_msg_global(wpa_s->parent, MSG_INFO,
1475 P2P_EVENT_FALLBACK_TO_GO_NEG
1476 "reason=no-ACK-to-PD-Req");
1477 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1483 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1485 struct wpa_supplicant *wpa_s = work->wpa_s;
1486 struct send_action_work *awork = work->ctx;
1489 if (work->started) {
1490 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1492 wpa_s->p2p_send_action_work = NULL;
1493 offchannel_send_action_done(wpa_s);
1499 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1500 awork->bssid, awork->buf, awork->len,
1502 wpas_p2p_send_action_tx_status, 1) < 0) {
1504 radio_work_done(work);
1507 wpa_s->p2p_send_action_work = work;
1511 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1512 unsigned int freq, const u8 *dst,
1513 const u8 *src, const u8 *bssid, const u8 *buf,
1514 size_t len, unsigned int wait_time)
1516 struct send_action_work *awork;
1518 if (wpa_s->p2p_send_action_work) {
1519 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1523 awork = os_zalloc(sizeof(*awork) + len);
1528 os_memcpy(awork->dst, dst, ETH_ALEN);
1529 os_memcpy(awork->src, src, ETH_ALEN);
1530 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1532 awork->wait_time = wait_time;
1533 os_memcpy(awork->buf, buf, len);
1535 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1536 wpas_send_action_cb, awork) < 0) {
1545 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1546 const u8 *src, const u8 *bssid, const u8 *buf,
1547 size_t len, unsigned int wait_time)
1549 struct wpa_supplicant *wpa_s = ctx;
1550 int listen_freq = -1, send_freq = -1;
1552 if (wpa_s->p2p_listen_work)
1553 listen_freq = wpa_s->p2p_listen_work->freq;
1554 if (wpa_s->p2p_send_action_work)
1555 send_freq = wpa_s->p2p_send_action_work->freq;
1556 if (listen_freq != (int) freq && send_freq != (int) freq) {
1557 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1558 listen_freq, send_freq);
1559 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1563 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1564 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1566 wpas_p2p_send_action_tx_status, 1);
1570 static void wpas_send_action_done(void *ctx)
1572 struct wpa_supplicant *wpa_s = ctx;
1574 if (wpa_s->p2p_send_action_work) {
1575 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1577 os_free(wpa_s->p2p_send_action_work->ctx);
1578 radio_work_done(wpa_s->p2p_send_action_work);
1579 wpa_s->p2p_send_action_work = NULL;
1582 offchannel_send_action_done(wpa_s);
1586 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1587 struct p2p_go_neg_results *params)
1589 if (wpa_s->go_params == NULL) {
1590 wpa_s->go_params = os_malloc(sizeof(*params));
1591 if (wpa_s->go_params == NULL)
1594 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1599 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1600 struct p2p_go_neg_results *res)
1602 wpa_s->group_formation_reported = 0;
1603 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1604 " dev_addr " MACSTR " wps_method %d",
1605 MAC2STR(res->peer_interface_addr),
1606 MAC2STR(res->peer_device_addr), res->wps_method);
1607 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1608 res->ssid, res->ssid_len);
1609 wpa_supplicant_ap_deinit(wpa_s);
1610 wpas_copy_go_neg_results(wpa_s, res);
1611 if (res->wps_method == WPS_PBC) {
1612 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1613 #ifdef CONFIG_WPS_NFC
1614 } else if (res->wps_method == WPS_NFC) {
1615 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1616 res->peer_interface_addr,
1617 wpa_s->parent->p2p_oob_dev_pw,
1618 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1619 wpa_s->parent->p2p_oob_dev_pw_id ==
1620 DEV_PW_NFC_CONNECTION_HANDOVER ?
1621 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1624 #endif /* CONFIG_WPS_NFC */
1626 u16 dev_pw_id = DEV_PW_DEFAULT;
1627 if (wpa_s->p2p_wps_method == WPS_P2PS)
1628 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1629 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1630 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1631 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1632 wpa_s->p2p_pin, 1, dev_pw_id);
1637 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1638 struct wpa_ssid *ssid)
1640 struct wpa_ssid *persistent;
1641 struct psk_list_entry *psk;
1642 struct hostapd_data *hapd;
1644 if (!wpa_s->ap_iface)
1647 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1649 if (persistent == NULL)
1652 hapd = wpa_s->ap_iface->bss[0];
1654 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1656 struct hostapd_wpa_psk *hpsk;
1658 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1660 MAC2STR(psk->addr), psk->p2p);
1661 hpsk = os_zalloc(sizeof(*hpsk));
1664 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1666 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1668 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1669 hpsk->next = hapd->conf->ssid.wpa_psk;
1670 hapd->conf->ssid.wpa_psk = hpsk;
1675 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1679 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1680 wpa_s->p2p_group_common_freqs_num);
1682 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1683 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1684 i, wpa_s->p2p_group_common_freqs[i]);
1688 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1689 struct p2p_go_neg_results *params)
1691 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1693 wpa_s->p2p_group_common_freqs_num = 0;
1694 os_free(wpa_s->p2p_group_common_freqs);
1695 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1696 if (!wpa_s->p2p_group_common_freqs)
1699 for (i = 0; i < len; i++) {
1700 if (!wpa_s->go_params->freq_list[i])
1702 wpa_s->p2p_group_common_freqs[i] =
1703 wpa_s->go_params->freq_list[i];
1705 wpa_s->p2p_group_common_freqs_num = i;
1709 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1711 #ifndef CONFIG_NO_CONFIG_WRITE
1712 if (wpa_s->parent->conf->update_config &&
1713 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1714 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1715 #endif /* CONFIG_NO_CONFIG_WRITE */
1719 static void p2p_go_configured(void *ctx, void *data)
1721 struct wpa_supplicant *wpa_s = ctx;
1722 struct p2p_go_neg_results *params = data;
1723 struct wpa_ssid *ssid;
1724 int network_id = -1;
1726 p2p_go_save_group_common_freqs(wpa_s, params);
1727 p2p_go_dump_common_freqs(wpa_s);
1729 ssid = wpa_s->current_ssid;
1730 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1731 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1732 if (wpa_s->global->p2p_group_formation == wpa_s)
1733 wpa_s->global->p2p_group_formation = NULL;
1734 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1735 params->passphrase[0] == '\0' ?
1738 wpa_s->global->p2p_dev_addr,
1739 params->persistent_group, "");
1740 wpa_s->group_formation_reported = 1;
1742 if (wpa_s->parent->p2ps_method_config_any) {
1743 if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
1744 wpa_dbg(wpa_s, MSG_DEBUG,
1745 "P2PS: Setting default PIN for ANY");
1746 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1747 "12345670", NULL, 0,
1750 wpa_dbg(wpa_s, MSG_DEBUG,
1751 "P2PS: Setting default PIN for " MACSTR,
1752 MAC2STR(wpa_s->parent->p2ps_join_addr));
1753 wpa_supplicant_ap_wps_pin(
1754 wpa_s, wpa_s->parent->p2ps_join_addr,
1755 "12345670", NULL, 0, 0);
1757 wpa_s->parent->p2ps_method_config_any = 0;
1760 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1761 if (params->persistent_group) {
1762 network_id = wpas_p2p_store_persistent_group(
1763 wpa_s->parent, ssid,
1764 wpa_s->global->p2p_dev_addr);
1765 wpas_p2p_add_psk_list(wpa_s, ssid);
1768 network_id = ssid->id;
1769 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1770 wpas_p2p_cross_connect_setup(wpa_s);
1771 wpas_p2p_set_group_idle_timeout(wpa_s);
1773 if (wpa_s->p2p_first_connection_timeout) {
1774 wpa_dbg(wpa_s, MSG_DEBUG,
1775 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1776 wpa_s->p2p_first_connection_timeout);
1777 wpa_s->p2p_go_group_formation_completed = 0;
1778 wpa_s->global->p2p_group_formation = wpa_s;
1779 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1780 wpa_s->parent, NULL);
1781 eloop_register_timeout(
1782 wpa_s->p2p_first_connection_timeout, 0,
1783 wpas_p2p_group_formation_timeout,
1784 wpa_s->parent, NULL);
1790 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1791 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1792 params->peer_interface_addr)) {
1793 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1797 if (params->wps_method == WPS_PBC) {
1798 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1799 params->peer_device_addr);
1800 #ifdef CONFIG_WPS_NFC
1801 } else if (params->wps_method == WPS_NFC) {
1802 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1803 DEV_PW_NFC_CONNECTION_HANDOVER &&
1804 !wpa_s->parent->p2p_oob_dev_pw) {
1805 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1808 wpas_ap_wps_add_nfc_pw(
1809 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1810 wpa_s->parent->p2p_oob_dev_pw,
1811 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1812 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1813 #endif /* CONFIG_WPS_NFC */
1814 } else if (wpa_s->p2p_pin[0])
1815 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1816 wpa_s->p2p_pin, NULL, 0, 0);
1817 os_free(wpa_s->go_params);
1818 wpa_s->go_params = NULL;
1822 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1823 struct p2p_go_neg_results *params,
1824 int group_formation)
1826 struct wpa_ssid *ssid;
1828 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1829 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1830 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1835 ssid = wpa_config_add_network(wpa_s->conf);
1837 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1841 wpa_s->show_group_started = 0;
1842 wpa_s->p2p_go_group_formation_completed = 0;
1843 wpa_s->group_formation_reported = 0;
1844 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1846 wpa_config_set_network_defaults(ssid);
1847 ssid->temporary = 1;
1848 ssid->p2p_group = 1;
1849 ssid->p2p_persistent_group = params->persistent_group;
1850 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1852 ssid->frequency = params->freq;
1853 ssid->ht40 = params->ht40;
1854 ssid->vht = params->vht;
1855 ssid->ssid = os_zalloc(params->ssid_len + 1);
1857 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1858 ssid->ssid_len = params->ssid_len;
1860 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1861 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1862 ssid->proto = WPA_PROTO_RSN;
1863 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1864 ssid->group_cipher = WPA_CIPHER_CCMP;
1865 if (params->freq > 56160) {
1867 * Enable GCMP instead of CCMP as pairwise_cipher and
1868 * group_cipher in 60 GHz.
1870 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1871 ssid->group_cipher = WPA_CIPHER_GCMP;
1873 if (os_strlen(params->passphrase) > 0) {
1874 ssid->passphrase = os_strdup(params->passphrase);
1875 if (ssid->passphrase == NULL) {
1876 wpa_msg_global(wpa_s, MSG_ERROR,
1877 "P2P: Failed to copy passphrase for GO");
1878 wpa_config_remove_network(wpa_s->conf, ssid->id);
1882 ssid->passphrase = NULL;
1883 ssid->psk_set = params->psk_set;
1885 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1886 else if (ssid->passphrase)
1887 wpa_config_update_psk(ssid);
1888 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1890 wpa_s->ap_configured_cb = p2p_go_configured;
1891 wpa_s->ap_configured_cb_ctx = wpa_s;
1892 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1893 wpa_s->scan_req = NORMAL_SCAN_REQ;
1894 wpa_s->connect_without_scan = ssid;
1895 wpa_s->reassociate = 1;
1896 wpa_s->disconnected = 0;
1897 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1899 wpa_supplicant_req_scan(wpa_s, 0, 0);
1903 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1904 const struct wpa_supplicant *src)
1906 struct wpa_config *d;
1907 const struct wpa_config *s;
1912 #define C(n) if (s->n) d->n = os_strdup(s->n)
1921 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1922 os_memcpy(d->sec_device_type, s->sec_device_type,
1923 sizeof(d->sec_device_type));
1924 d->num_sec_device_types = s->num_sec_device_types;
1926 d->p2p_group_idle = s->p2p_group_idle;
1927 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1928 d->p2p_intra_bss = s->p2p_intra_bss;
1929 d->persistent_reconnect = s->persistent_reconnect;
1930 d->max_num_sta = s->max_num_sta;
1931 d->pbc_in_m1 = s->pbc_in_m1;
1932 d->ignore_old_scan_res = s->ignore_old_scan_res;
1933 d->beacon_int = s->beacon_int;
1934 d->dtim_period = s->dtim_period;
1935 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1936 d->disassoc_low_ack = s->disassoc_low_ack;
1937 d->disable_scan_offload = s->disable_scan_offload;
1938 d->passive_scan = s->passive_scan;
1940 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1941 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1942 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1944 d->p2p_cli_probe = s->p2p_cli_probe;
1948 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1949 char *ifname, size_t len)
1951 char *ifname_ptr = wpa_s->ifname;
1953 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1954 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1955 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1958 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1959 if (os_strlen(ifname) >= IFNAMSIZ &&
1960 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1963 /* Try to avoid going over the IFNAMSIZ length limit */
1964 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1965 if (os_snprintf_error(len, res) && len)
1966 ifname[len - 1] = '\0';
1971 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1972 enum wpa_driver_if_type type)
1974 char ifname[120], force_ifname[120];
1976 if (wpa_s->pending_interface_name[0]) {
1977 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1978 "- skip creation of a new one");
1979 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1980 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1981 "unknown?! ifname='%s'",
1982 wpa_s->pending_interface_name);
1988 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1989 force_ifname[0] = '\0';
1991 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1993 wpa_s->p2p_group_idx++;
1995 wpa_s->pending_interface_type = type;
1996 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1997 wpa_s->pending_interface_addr, NULL) < 0) {
1998 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2003 if (force_ifname[0]) {
2004 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2006 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2007 sizeof(wpa_s->pending_interface_name));
2009 os_strlcpy(wpa_s->pending_interface_name, ifname,
2010 sizeof(wpa_s->pending_interface_name));
2011 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2012 MACSTR, wpa_s->pending_interface_name,
2013 MAC2STR(wpa_s->pending_interface_addr));
2019 static void wpas_p2p_remove_pending_group_interface(
2020 struct wpa_supplicant *wpa_s)
2022 if (!wpa_s->pending_interface_name[0] ||
2023 is_zero_ether_addr(wpa_s->pending_interface_addr))
2024 return; /* No pending virtual interface */
2026 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2027 wpa_s->pending_interface_name);
2028 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2029 wpa_s->pending_interface_name);
2030 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2031 wpa_s->pending_interface_name[0] = '\0';
2032 wpa_s->global->pending_group_iface_for_p2ps = 0;
2036 static struct wpa_supplicant *
2037 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2039 struct wpa_interface iface;
2040 struct wpa_supplicant *group_wpa_s;
2042 if (!wpa_s->pending_interface_name[0]) {
2043 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2044 if (!wpas_p2p_create_iface(wpa_s))
2047 * Something has forced us to remove the pending interface; try
2048 * to create a new one and hope for the best that we will get
2049 * the same local address.
2051 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2052 WPA_IF_P2P_CLIENT) < 0)
2056 os_memset(&iface, 0, sizeof(iface));
2057 iface.ifname = wpa_s->pending_interface_name;
2058 iface.driver = wpa_s->driver->name;
2059 if (wpa_s->conf->ctrl_interface == NULL &&
2060 wpa_s->parent != wpa_s &&
2062 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2063 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2065 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2066 iface.driver_param = wpa_s->conf->driver_param;
2067 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2068 if (group_wpa_s == NULL) {
2069 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2070 "wpa_supplicant interface");
2073 wpa_s->pending_interface_name[0] = '\0';
2074 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2075 P2P_GROUP_INTERFACE_CLIENT;
2076 wpa_s->global->p2p_group_formation = group_wpa_s;
2077 wpa_s->global->pending_group_iface_for_p2ps = 0;
2079 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2085 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2088 struct wpa_supplicant *wpa_s = eloop_ctx;
2089 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2090 wpas_p2p_group_formation_failed(wpa_s, 0);
2094 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2095 int already_deleted)
2097 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2098 wpa_s->parent, NULL);
2099 if (wpa_s->global->p2p)
2100 p2p_group_formation_failed(wpa_s->global->p2p);
2101 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2105 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2107 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2108 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2109 wpa_s->parent, NULL);
2110 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2111 wpa_s->parent, NULL);
2112 wpa_s->global->p2p_fail_on_wps_complete = 0;
2116 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2118 if (wpa_s->global->p2p_group_formation != wpa_s)
2120 /* Speed up group formation timeout since this cannot succeed */
2121 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2122 wpa_s->parent, NULL);
2123 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2124 wpa_s->parent, NULL);
2128 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2130 struct wpa_supplicant *wpa_s = ctx;
2132 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2133 wpa_drv_cancel_remain_on_channel(wpa_s);
2134 wpa_s->off_channel_freq = 0;
2135 wpa_s->roc_waiting_drv_freq = 0;
2139 wpa_msg_global(wpa_s, MSG_INFO,
2140 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2142 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2143 wpas_p2p_remove_pending_group_interface(wpa_s);
2147 if (!res->role_go) {
2148 /* Inform driver of the operating channel of GO. */
2149 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2152 if (wpa_s->p2p_go_ht40)
2154 if (wpa_s->p2p_go_vht)
2157 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2158 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2160 res->role_go ? "GO" : "client", res->freq, res->ht40,
2161 MAC2STR(res->peer_device_addr),
2162 MAC2STR(res->peer_interface_addr),
2163 p2p_wps_method_text(res->wps_method));
2164 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2166 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2167 struct wpa_ssid *ssid;
2168 ssid = wpa_config_get_network(wpa_s->conf,
2169 wpa_s->p2p_persistent_id);
2170 if (ssid && ssid->disabled == 2 &&
2171 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2172 size_t len = os_strlen(ssid->passphrase);
2173 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2174 "on requested persistent group");
2175 os_memcpy(res->passphrase, ssid->passphrase, len);
2176 res->passphrase[len] = '\0';
2180 if (wpa_s->create_p2p_iface) {
2181 struct wpa_supplicant *group_wpa_s =
2182 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2183 if (group_wpa_s == NULL) {
2184 wpas_p2p_remove_pending_group_interface(wpa_s);
2185 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2187 wpas_p2p_group_formation_failed(wpa_s, 1);
2190 if (group_wpa_s != wpa_s) {
2191 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2192 sizeof(group_wpa_s->p2p_pin));
2193 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2195 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2196 wpa_s->pending_interface_name[0] = '\0';
2197 group_wpa_s->p2p_in_provisioning = 1;
2200 wpas_start_wps_go(group_wpa_s, res, 1);
2202 os_get_reltime(&group_wpa_s->scan_min_time);
2203 wpas_start_wps_enrollee(group_wpa_s, res);
2206 wpa_s->p2p_in_provisioning = 1;
2207 wpa_s->global->p2p_group_formation = wpa_s;
2210 wpas_start_wps_go(wpa_s, res, 1);
2212 os_get_reltime(&wpa_s->scan_min_time);
2213 wpas_start_wps_enrollee(ctx, res);
2217 wpa_s->p2p_long_listen = 0;
2218 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2220 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2221 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2222 (res->peer_config_timeout % 100) * 10000,
2223 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2227 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2230 struct wpa_supplicant *wpa_s = ctx;
2231 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2232 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2233 dev_passwd_id, go_intent);
2235 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2239 static void wpas_dev_found(void *ctx, const u8 *addr,
2240 const struct p2p_peer_info *info,
2243 #ifndef CONFIG_NO_STDOUT_DEBUG
2244 struct wpa_supplicant *wpa_s = ctx;
2245 char devtype[WPS_DEV_TYPE_BUFSIZE];
2246 char *wfd_dev_info_hex = NULL;
2248 #ifdef CONFIG_WIFI_DISPLAY
2249 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2250 WFD_SUBELEM_DEVICE_INFO);
2251 #endif /* CONFIG_WIFI_DISPLAY */
2253 if (info->p2ps_instance) {
2255 const u8 *buf = wpabuf_head(info->p2ps_instance);
2256 size_t len = wpabuf_len(info->p2ps_instance);
2263 if (len < 4 + 2 + 1)
2265 id = WPA_GET_LE32(buf);
2267 methods = WPA_GET_BE16(buf);
2270 if (str_len > len - 4 - 2 - 1)
2272 os_memcpy(str, buf, str_len);
2273 str[str_len] = '\0';
2275 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2277 wpa_msg_global(wpa_s, MSG_INFO,
2278 P2P_EVENT_DEVICE_FOUND MACSTR
2279 " p2p_dev_addr=" MACSTR
2280 " pri_dev_type=%s name='%s'"
2281 " config_methods=0x%x"
2284 " adv_id=%x asp_svc=%s%s",
2286 MAC2STR(info->p2p_device_addr),
2287 wps_dev_type_bin2str(
2289 devtype, sizeof(devtype)),
2290 info->device_name, methods,
2291 info->dev_capab, info->group_capab,
2293 info->vendor_elems ?
2294 " vendor_elems=1" : "");
2299 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2300 " p2p_dev_addr=" MACSTR
2301 " pri_dev_type=%s name='%s' config_methods=0x%x "
2302 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2303 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2304 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2306 info->device_name, info->config_methods,
2307 info->dev_capab, info->group_capab,
2308 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2309 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2310 info->vendor_elems ? " vendor_elems=1" : "",
2314 os_free(wfd_dev_info_hex);
2315 #endif /* CONFIG_NO_STDOUT_DEBUG */
2317 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2321 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2323 struct wpa_supplicant *wpa_s = ctx;
2325 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2326 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2328 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2332 static void wpas_find_stopped(void *ctx)
2334 struct wpa_supplicant *wpa_s = ctx;
2335 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2336 wpas_notify_p2p_find_stopped(wpa_s);
2340 struct wpas_p2p_listen_work {
2342 unsigned int duration;
2343 struct wpabuf *probe_resp_ie;
2347 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2351 wpabuf_free(lwork->probe_resp_ie);
2356 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2358 struct wpas_p2p_listen_work *lwork;
2360 if (!wpa_s->p2p_listen_work)
2363 lwork = wpa_s->p2p_listen_work->ctx;
2364 wpas_p2p_listen_work_free(lwork);
2365 radio_work_done(wpa_s->p2p_listen_work);
2366 wpa_s->p2p_listen_work = NULL;
2370 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2372 struct wpa_supplicant *wpa_s = work->wpa_s;
2373 struct wpas_p2p_listen_work *lwork = work->ctx;
2374 unsigned int duration;
2377 if (work->started) {
2378 wpa_s->p2p_listen_work = NULL;
2379 wpas_stop_listen(wpa_s);
2381 wpas_p2p_listen_work_free(lwork);
2385 wpa_s->p2p_listen_work = work;
2387 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2389 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2390 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2391 "report received Probe Request frames");
2392 wpas_p2p_listen_work_done(wpa_s);
2396 wpa_s->pending_listen_freq = lwork->freq;
2397 wpa_s->pending_listen_duration = lwork->duration;
2399 duration = lwork->duration;
2400 #ifdef CONFIG_TESTING_OPTIONS
2401 if (wpa_s->extra_roc_dur) {
2402 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2403 duration, duration + wpa_s->extra_roc_dur);
2404 duration += wpa_s->extra_roc_dur;
2406 #endif /* CONFIG_TESTING_OPTIONS */
2408 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2409 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2410 "to remain on channel (%u MHz) for Listen "
2411 "state", lwork->freq);
2412 wpas_p2p_listen_work_done(wpa_s);
2413 wpa_s->pending_listen_freq = 0;
2416 wpa_s->off_channel_freq = 0;
2417 wpa_s->roc_waiting_drv_freq = lwork->freq;
2421 static int wpas_start_listen(void *ctx, unsigned int freq,
2422 unsigned int duration,
2423 const struct wpabuf *probe_resp_ie)
2425 struct wpa_supplicant *wpa_s = ctx;
2426 struct wpas_p2p_listen_work *lwork;
2428 if (wpa_s->p2p_listen_work) {
2429 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2433 lwork = os_zalloc(sizeof(*lwork));
2437 lwork->duration = duration;
2438 if (probe_resp_ie) {
2439 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2440 if (lwork->probe_resp_ie == NULL) {
2441 wpas_p2p_listen_work_free(lwork);
2446 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2448 wpas_p2p_listen_work_free(lwork);
2456 static void wpas_stop_listen(void *ctx)
2458 struct wpa_supplicant *wpa_s = ctx;
2459 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2460 wpa_drv_cancel_remain_on_channel(wpa_s);
2461 wpa_s->off_channel_freq = 0;
2462 wpa_s->roc_waiting_drv_freq = 0;
2464 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2467 * Don't cancel Probe Request RX reporting for a connected P2P Client
2468 * handling Probe Request frames.
2470 if (!wpa_s->p2p_cli_probe)
2471 wpa_drv_probe_req_report(wpa_s, 0);
2473 wpas_p2p_listen_work_done(wpa_s);
2477 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2480 struct wpa_supplicant *wpa_s = ctx;
2481 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2486 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2487 const u8 *peer, const char *params,
2488 unsigned int generated_pin)
2490 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2491 " %08d%s", MAC2STR(peer), generated_pin, params);
2495 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2496 const u8 *peer, const char *params)
2498 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2499 "%s", MAC2STR(peer), params);
2503 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2504 const u8 *dev_addr, const u8 *pri_dev_type,
2505 const char *dev_name, u16 supp_config_methods,
2506 u8 dev_capab, u8 group_capab, const u8 *group_id,
2507 size_t group_id_len)
2509 struct wpa_supplicant *wpa_s = ctx;
2510 char devtype[WPS_DEV_TYPE_BUFSIZE];
2512 u8 empty_dev_type[8];
2513 unsigned int generated_pin = 0;
2514 struct wpa_supplicant *group = NULL;
2518 for (group = wpa_s->global->ifaces; group; group = group->next)
2520 struct wpa_ssid *s = group->current_ssid;
2522 s->mode == WPAS_MODE_P2P_GO &&
2523 group_id_len - ETH_ALEN == s->ssid_len &&
2524 os_memcmp(group_id + ETH_ALEN, s->ssid,
2530 if (pri_dev_type == NULL) {
2531 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2532 pri_dev_type = empty_dev_type;
2534 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2535 " pri_dev_type=%s name='%s' config_methods=0x%x "
2536 "dev_capab=0x%x group_capab=0x%x%s%s",
2538 wps_dev_type_bin2str(pri_dev_type, devtype,
2540 dev_name, supp_config_methods, dev_capab, group_capab,
2541 group ? " group=" : "",
2542 group ? group->ifname : "");
2543 if (os_snprintf_error(sizeof(params), res))
2544 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2545 params[sizeof(params) - 1] = '\0';
2547 if (config_methods & WPS_CONFIG_DISPLAY) {
2548 generated_pin = wps_generate_pin();
2549 wpas_prov_disc_local_display(wpa_s, peer, params,
2551 } else if (config_methods & WPS_CONFIG_KEYPAD)
2552 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2553 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2554 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2555 MACSTR "%s", MAC2STR(peer), params);
2557 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2558 P2P_PROV_DISC_SUCCESS,
2559 config_methods, generated_pin);
2563 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2565 struct wpa_supplicant *wpa_s = ctx;
2566 unsigned int generated_pin = 0;
2569 if (wpa_s->pending_pd_before_join &&
2570 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2571 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2572 wpa_s->pending_pd_before_join = 0;
2573 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2574 "join-existing-group operation");
2575 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2579 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2580 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2583 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2584 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2585 if (os_snprintf_error(sizeof(params), res))
2586 params[sizeof(params) - 1] = '\0';
2590 if (config_methods & WPS_CONFIG_DISPLAY)
2591 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2592 else if (config_methods & WPS_CONFIG_KEYPAD) {
2593 generated_pin = wps_generate_pin();
2594 wpas_prov_disc_local_display(wpa_s, peer, params,
2596 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2597 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2598 MACSTR "%s", MAC2STR(peer), params);
2600 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2601 P2P_PROV_DISC_SUCCESS,
2602 config_methods, generated_pin);
2606 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2607 enum p2p_prov_disc_status status,
2608 u32 adv_id, const u8 *adv_mac,
2609 const char *deferred_session_resp)
2611 struct wpa_supplicant *wpa_s = ctx;
2613 if (wpa_s->p2p_fallback_to_go_neg) {
2614 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2615 "failed - fall back to GO Negotiation");
2616 wpa_msg_global(wpa_s->parent, MSG_INFO,
2617 P2P_EVENT_FALLBACK_TO_GO_NEG
2618 "reason=PD-failed");
2619 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2623 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2624 wpa_s->pending_pd_before_join = 0;
2625 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2626 "join-existing-group operation (no ACK for PD "
2628 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2632 if (adv_id && adv_mac && deferred_session_resp) {
2633 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2634 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2635 " deferred_session_resp='%s'",
2636 MAC2STR(peer), status, adv_id,
2637 deferred_session_resp);
2638 } else if (adv_id && adv_mac) {
2639 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2640 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2641 MAC2STR(peer), status, adv_id);
2643 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2644 " p2p_dev_addr=" MACSTR " status=%d",
2645 MAC2STR(peer), status);
2648 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2653 static int freq_included(struct wpa_supplicant *wpa_s,
2654 const struct p2p_channels *channels,
2657 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2658 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2664 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2666 unsigned int num = P2P_MAX_CHANNELS;
2670 p2p_go_dump_common_freqs(wpa_s);
2671 common_freqs = os_calloc(num, sizeof(int));
2675 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2677 wpa_dbg(wpa_s, MSG_DEBUG,
2678 "P2P: Failed to get group common freqs");
2679 os_free(common_freqs);
2683 os_free(wpa_s->p2p_group_common_freqs);
2684 wpa_s->p2p_group_common_freqs = common_freqs;
2685 wpa_s->p2p_group_common_freqs_num = num;
2686 p2p_go_dump_common_freqs(wpa_s);
2691 * Check if the given frequency is one of the possible operating frequencies
2692 * set after the completion of the GO Negotiation.
2694 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2698 p2p_go_dump_common_freqs(wpa_s);
2700 /* assume no restrictions */
2701 if (!wpa_s->p2p_group_common_freqs_num)
2704 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2705 if (wpa_s->p2p_group_common_freqs[i] == freq)
2712 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2713 struct sta_info *sta, void *ctx)
2715 int *ecsa_support = ctx;
2717 *ecsa_support &= sta->ecsa_supported;
2723 /* Check if all the peers support eCSA */
2724 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2726 int ecsa_support = 1;
2728 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2731 return ecsa_support;
2736 * Pick the best frequency to use from all the currently used frequencies.
2738 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2739 struct wpa_used_freq_data *freqs,
2744 /* find a candidate freq that is supported by P2P */
2745 for (c = 0; c < num; c++)
2746 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2752 /* once we have a candidate, try to find a 'better' one */
2753 for (i = c + 1; i < num; i++) {
2754 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2758 * 1. Infrastructure station interfaces have higher preference.
2759 * 2. P2P Clients have higher preference.
2762 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2767 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2770 return freqs[c].freq;
2774 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2775 const u8 *go_dev_addr, const u8 *ssid,
2776 size_t ssid_len, int *go, u8 *group_bssid,
2777 int *force_freq, int persistent_group,
2778 const struct p2p_channels *channels,
2781 struct wpa_supplicant *wpa_s = ctx;
2783 struct wpa_used_freq_data *freqs;
2784 struct wpa_supplicant *grp;
2787 if (!persistent_group) {
2788 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2789 " to join an active group (SSID: %s)",
2790 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2791 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2792 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2794 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2795 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2796 "authorized invitation");
2800 #ifdef CONFIG_WPS_NFC
2801 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2802 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2803 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2804 wpa_s->p2p_wps_method = WPS_NFC;
2805 wpa_s->pending_join_wps_method = WPS_NFC;
2806 os_memcpy(wpa_s->pending_join_dev_addr,
2807 go_dev_addr, ETH_ALEN);
2808 os_memcpy(wpa_s->pending_join_iface_addr,
2812 #endif /* CONFIG_WPS_NFC */
2815 * Do not accept the invitation automatically; notify user and
2818 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2821 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2823 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2824 "running persistent group");
2826 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2830 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2831 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2832 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2833 "invitation to re-invoke a persistent group");
2834 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2835 } else if (!wpa_s->conf->persistent_reconnect)
2836 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2838 for (s = wpa_s->conf->ssid; s; s = s->next) {
2839 if (s->disabled == 2 &&
2840 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2841 s->ssid_len == ssid_len &&
2842 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2847 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2848 " requested reinvocation of an unknown group",
2850 return P2P_SC_FAIL_UNKNOWN_GROUP;
2853 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2855 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2856 wpa_printf(MSG_DEBUG, "P2P: The only available "
2857 "interface is already in use - reject "
2859 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2861 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2862 } else if (s->mode == WPAS_MODE_P2P_GO) {
2864 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2866 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2867 "interface address for the group");
2868 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2870 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2875 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2878 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2879 sizeof(struct wpa_used_freq_data));
2881 int num_channels = wpa_s->num_multichan_concurrent;
2882 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2883 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2887 /* Get one of the frequencies currently in use */
2888 if (best_freq > 0) {
2889 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2890 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2892 if (wpa_s->num_multichan_concurrent < 2 ||
2893 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2894 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2895 *force_freq = best_freq;
2899 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2900 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2902 /* We are the client */
2903 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2904 "running a GO but we are capable of MCC, "
2905 "figure out the best channel to use");
2907 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2908 /* We are the GO, and *force_freq is not in the
2910 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2911 "in intersection but we are capable of MCC, "
2912 "figure out the best channel to use",
2918 return P2P_SC_SUCCESS;
2922 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2923 const u8 *ssid, size_t ssid_len,
2924 const u8 *go_dev_addr, u8 status,
2927 struct wpa_supplicant *wpa_s = ctx;
2930 for (s = wpa_s->conf->ssid; s; s = s->next) {
2931 if (s->disabled == 2 &&
2932 s->ssid_len == ssid_len &&
2933 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2937 if (status == P2P_SC_SUCCESS) {
2938 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2939 " was accepted; op_freq=%d MHz, SSID=%s",
2940 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2942 int go = s->mode == WPAS_MODE_P2P_GO;
2943 wpas_p2p_group_add_persistent(
2944 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2945 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2948 wpa_s->user_initiated_pd = 0;
2949 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2950 wpa_s->p2p_wps_method, 0, op_freq,
2956 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2957 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2958 " was rejected (status %u)", MAC2STR(sa), status);
2964 wpa_msg_global(wpa_s, MSG_INFO,
2965 P2P_EVENT_INVITATION_RECEIVED
2966 "sa=" MACSTR " go_dev_addr=" MACSTR
2967 " bssid=" MACSTR " unknown-network",
2968 MAC2STR(sa), MAC2STR(go_dev_addr),
2971 wpa_msg_global(wpa_s, MSG_INFO,
2972 P2P_EVENT_INVITATION_RECEIVED
2973 "sa=" MACSTR " go_dev_addr=" MACSTR
2975 MAC2STR(sa), MAC2STR(go_dev_addr));
2977 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
2982 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2983 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2984 "sa=" MACSTR " persistent=%d freq=%d",
2985 MAC2STR(sa), s->id, op_freq);
2987 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2988 "sa=" MACSTR " persistent=%d",
2989 MAC2STR(sa), s->id);
2991 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
2996 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2997 struct wpa_ssid *ssid,
2998 const u8 *peer, int inv)
3001 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3006 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3007 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3011 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3012 if (ssid->mode != WPAS_MODE_P2P_GO &&
3013 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3014 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3015 "due to invitation result", ssid->id);
3016 wpas_notify_network_removed(wpa_s, ssid);
3017 wpa_config_remove_network(wpa_s->conf, ssid->id);
3020 return; /* Peer not found in client list */
3023 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3024 "group %d client list%s",
3025 MAC2STR(peer), ssid->id,
3026 inv ? " due to invitation result" : "");
3027 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3028 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3029 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3030 ssid->num_p2p_clients--;
3031 if (p2p_wpa_s->conf->update_config &&
3032 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3033 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3037 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3040 struct wpa_ssid *ssid;
3042 wpa_s = wpa_s->global->p2p_invite_group;
3044 return; /* No known invitation group */
3045 ssid = wpa_s->current_ssid;
3046 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3047 !ssid->p2p_persistent_group)
3048 return; /* Not operating as a GO in persistent group */
3049 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3050 ssid->ssid, ssid->ssid_len);
3051 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3055 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3056 const struct p2p_channels *channels,
3057 const u8 *peer, int neg_freq,
3060 struct wpa_supplicant *wpa_s = ctx;
3061 struct wpa_ssid *ssid;
3065 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3066 "status=%d " MACSTR,
3067 status, MAC2STR(bssid));
3069 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3070 "status=%d ", status);
3072 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3074 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3075 status, MAC2STR(peer));
3076 if (wpa_s->pending_invite_ssid_id == -1) {
3077 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3078 wpas_remove_persistent_client(wpa_s, peer);
3079 return; /* Invitation to active group */
3082 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3083 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3084 "invitation exchange to indicate readiness for "
3088 if (status != P2P_SC_SUCCESS) {
3089 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3090 ssid = wpa_config_get_network(
3091 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3092 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3094 wpas_p2p_remove_pending_group_interface(wpa_s);
3098 ssid = wpa_config_get_network(wpa_s->conf,
3099 wpa_s->pending_invite_ssid_id);
3101 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3102 "data matching with invitation");
3107 * The peer could have missed our ctrl::ack frame for Invitation
3108 * Response and continue retransmitting the frame. To reduce the
3109 * likelihood of the peer not getting successful TX status for the
3110 * Invitation Response frame, wait a short time here before starting
3111 * the persistent group so that we will remain on the current channel to
3112 * acknowledge any possible retransmission from the peer.
3114 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3115 "starting persistent group");
3118 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3119 freq_included(wpa_s, channels, neg_freq))
3121 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3122 freq_included(wpa_s, channels, peer_oper_freq))
3123 freq = peer_oper_freq;
3127 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3128 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3129 wpas_p2p_group_add_persistent(wpa_s, ssid,
3130 ssid->mode == WPAS_MODE_P2P_GO,
3131 wpa_s->p2p_persistent_go_freq,
3133 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3135 ssid->mode == WPAS_MODE_P2P_GO ?
3136 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3141 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3144 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3146 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3150 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3152 reg->channel[reg->channels] = chan;
3157 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3158 struct p2p_channels *chan,
3159 struct p2p_channels *cli_chan)
3163 wpa_s->global->p2p_24ghz_social_channels = 1;
3165 os_memset(cli_chan, 0, sizeof(*cli_chan));
3167 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3170 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3171 chan->reg_class[cla].reg_class = 81;
3172 chan->reg_class[cla].channels = 0;
3173 for (i = 0; i < 11; i++) {
3174 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3175 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3177 if (chan->reg_class[cla].channels)
3180 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3183 /* Operating class 115 - 5 GHz, channels 36-48 */
3184 chan->reg_class[cla].reg_class = 115;
3185 chan->reg_class[cla].channels = 0;
3186 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3187 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3188 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3189 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3190 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3191 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3192 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3193 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3194 if (chan->reg_class[cla].channels)
3197 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3200 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3201 chan->reg_class[cla].reg_class = 124;
3202 chan->reg_class[cla].channels = 0;
3203 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3204 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3205 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3206 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3207 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3208 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3209 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3210 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3211 if (chan->reg_class[cla].channels)
3214 chan->reg_classes = cla;
3219 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3221 enum hostapd_hw_mode mode)
3225 for (i = 0; i < num_modes; i++) {
3226 if (modes[i].mode == mode)
3235 NOT_ALLOWED, NO_IR, ALLOWED
3238 static int has_channel(struct wpa_global *global,
3239 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3244 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3246 if (wpas_p2p_disallowed_freq(global, freq))
3249 for (i = 0; i < mode->num_channels; i++) {
3250 if (mode->channels[i].chan == chan) {
3252 *flags = mode->channels[i].flag;
3253 if (mode->channels[i].flag &
3254 (HOSTAPD_CHAN_DISABLED |
3255 HOSTAPD_CHAN_RADAR))
3257 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3267 struct p2p_oper_class_map {
3268 enum hostapd_hw_mode mode;
3273 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3276 static const struct p2p_oper_class_map op_class[] = {
3277 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3278 #if 0 /* Do not enable HT40 on 2 GHz for now */
3279 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3280 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3282 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3283 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3284 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
3285 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3286 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3287 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3288 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3291 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3292 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3293 * 80 MHz, but currently use the following definition for simplicity
3294 * (these center frequencies are not actual channels, which makes
3295 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3296 * removing invalid channels.
3298 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3299 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3300 { -1, 0, 0, 0, 0, BW20 }
3304 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3305 struct hostapd_hw_modes *mode,
3308 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3311 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3314 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3316 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3317 * so the center channel is 6 channels away from the start/end.
3319 if (channel >= center_channels[i] - 6 &&
3320 channel <= center_channels[i] + 6)
3321 return center_channels[i];
3327 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3328 struct hostapd_hw_modes *mode,
3333 enum chan_allowed res, ret = ALLOWED;
3335 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3338 if (center_chan >= 58 && center_chan <= 138)
3339 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3341 /* check all the channels are available */
3342 for (i = 0; i < 4; i++) {
3343 int adj_chan = center_chan - 6 + i * 4;
3345 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3346 if (res == NOT_ALLOWED)
3351 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3353 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3355 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3357 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3365 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3366 struct hostapd_hw_modes *mode,
3370 enum chan_allowed res, res2;
3372 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3373 if (bw == BW40MINUS) {
3374 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3376 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3377 } else if (bw == BW40PLUS) {
3378 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3380 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3381 } else if (bw == BW80) {
3382 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3385 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3387 if (res == NO_IR || res2 == NO_IR)
3393 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3394 struct p2p_channels *chan,
3395 struct p2p_channels *cli_chan)
3397 struct hostapd_hw_modes *mode;
3398 int cla, op, cli_cla;
3400 if (wpa_s->hw.modes == NULL) {
3401 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3402 "of all supported channels; assume dualband "
3404 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3409 for (op = 0; op_class[op].op_class; op++) {
3410 const struct p2p_oper_class_map *o = &op_class[op];
3412 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3414 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3417 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3418 wpa_s->global->p2p_24ghz_social_channels = 1;
3419 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3420 enum chan_allowed res;
3421 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3422 if (res == ALLOWED) {
3424 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3426 reg = &chan->reg_class[cla];
3428 reg->reg_class = o->op_class;
3430 reg->channel[reg->channels] = ch;
3432 } else if (res == NO_IR &&
3433 wpa_s->conf->p2p_add_cli_chan) {
3434 if (cli_reg == NULL) {
3435 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3437 cli_reg = &cli_chan->reg_class[cli_cla];
3439 cli_reg->reg_class = o->op_class;
3441 cli_reg->channel[cli_reg->channels] = ch;
3442 cli_reg->channels++;
3446 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3447 reg->channel, reg->channels);
3450 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3451 cli_reg->channel, cli_reg->channels);
3455 chan->reg_classes = cla;
3456 cli_chan->reg_classes = cli_cla;
3462 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3463 struct hostapd_hw_modes *mode, u8 channel)
3466 enum chan_allowed ret;
3468 for (op = 0; op_class[op].op_class; op++) {
3469 const struct p2p_oper_class_map *o = &op_class[op];
3472 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3473 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3474 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3477 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3479 return (o->bw == BW40MINUS) ? -1 : 1;
3486 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3487 struct hostapd_hw_modes *mode, u8 channel)
3489 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3492 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3496 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3499 struct wpa_supplicant *wpa_s = ctx;
3501 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3502 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3508 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3512 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3513 const u8 *ssid, size_t ssid_len)
3515 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3516 struct wpa_ssid *s = wpa_s->current_ssid;
3519 if (s->mode != WPAS_MODE_P2P_GO &&
3520 s->mode != WPAS_MODE_AP &&
3521 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3523 if (s->ssid_len != ssid_len ||
3524 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3534 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3535 const u8 *peer_dev_addr)
3537 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3538 struct wpa_ssid *ssid = wpa_s->current_ssid;
3539 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3541 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3549 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3551 struct wpa_supplicant *wpa_s = ctx;
3553 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3557 static int wpas_is_concurrent_session_active(void *ctx)
3559 struct wpa_supplicant *wpa_s = ctx;
3560 struct wpa_supplicant *ifs;
3562 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3565 if (ifs->wpa_state > WPA_ASSOCIATED)
3572 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3574 struct wpa_supplicant *wpa_s = ctx;
3575 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3579 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3580 const char *conf_p2p_dev)
3582 struct wpa_interface iface;
3583 struct wpa_supplicant *p2pdev_wpa_s;
3585 char force_name[100];
3588 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3590 if (os_snprintf_error(sizeof(ifname), ret))
3592 force_name[0] = '\0';
3593 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3594 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3595 force_name, wpa_s->pending_interface_addr, NULL);
3597 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3600 os_strlcpy(wpa_s->pending_interface_name, ifname,
3601 sizeof(wpa_s->pending_interface_name));
3603 os_memset(&iface, 0, sizeof(iface));
3605 iface.ifname = wpa_s->pending_interface_name;
3606 iface.driver = wpa_s->driver->name;
3607 iface.driver_param = wpa_s->conf->driver_param;
3610 * If a P2P Device configuration file was given, use it as the interface
3611 * configuration file (instead of using parent's configuration file.
3614 iface.confname = conf_p2p_dev;
3615 iface.ctrl_interface = NULL;
3617 iface.confname = wpa_s->confname;
3618 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3621 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3622 if (!p2pdev_wpa_s) {
3623 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3627 wpa_s->pending_interface_name[0] = '\0';
3632 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3633 const u8 *noa, size_t noa_len)
3635 struct wpa_supplicant *wpa_s, *intf = ctx;
3638 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3639 if (wpa_s->waiting_presence_resp)
3643 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3646 wpa_s->waiting_presence_resp = 0;
3648 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3649 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3650 " status=%u noa=%s", MAC2STR(src), status, hex);
3654 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3655 size_t ssid_len, u8 *go_dev_addr,
3656 u8 *ret_ssid, size_t *ret_ssid_len,
3657 u8 *intended_iface_addr)
3659 struct wpa_supplicant *wpa_s = ctx;
3662 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3664 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3665 *ret_ssid_len = s->ssid_len;
3666 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3668 if (s->mode != WPAS_MODE_P2P_GO) {
3669 os_memset(intended_iface_addr, 0, ETH_ALEN);
3670 } else if (wpas_p2p_create_iface(wpa_s)) {
3671 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3674 os_memcpy(intended_iface_addr,
3675 wpa_s->pending_interface_addr, ETH_ALEN);
3677 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3687 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3688 u8 *ssid, size_t *ssid_len, int *group_iface)
3690 struct wpa_supplicant *wpa_s = ctx;
3695 * group_iface will be set to 1 only if a dedicated interface for P2P
3696 * role is required. First, we try to reuse an active GO. However,
3697 * if it is not present, we will try to reactivate an existing
3698 * persistent group and set group_iface to 1, so the caller will know
3699 * that the pending interface should be used.
3702 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3704 s = wpas_p2p_get_persistent_go(wpa_s);
3705 *group_iface = wpas_p2p_create_iface(wpa_s);
3707 os_memcpy(bssid, s->bssid, ETH_ALEN);
3712 os_memcpy(intended_addr, bssid, ETH_ALEN);
3713 os_memcpy(ssid, s->ssid, s->ssid_len);
3714 *ssid_len = s->ssid_len;
3720 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3721 const u8 *ssid, size_t ssid_len)
3723 struct wpa_supplicant *wpa_s = ctx;
3725 int save_config = 0;
3728 /* Start with our first choice of Persistent Groups */
3729 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3730 if (go && ssid && ssid_len &&
3731 s->ssid_len == ssid_len &&
3732 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3733 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3736 /* Remove stale persistent group */
3737 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3738 wpa_config_remove_network(wpa_s->conf, s->id);
3743 for (i = 0; i < s->num_p2p_clients; i++) {
3744 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3745 peer, ETH_ALEN) != 0)
3748 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3749 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3750 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3753 s->num_p2p_clients--;
3758 p2p_config_write(wpa_s);
3760 /* Return TRUE if valid SSID remains */
3765 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3766 const u8 *feat_cap, size_t feat_cap_len)
3768 static const char pref[] = " feature_cap=";
3774 * We expect a feature capability to contain at least one byte to be
3775 * reported. The string buffer provided by the caller function is
3776 * expected to be big enough to contain all bytes of the attribute for
3777 * known specifications. This function truncates the reported bytes if
3778 * the feature capability data exceeds the string buffer size.
3780 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3783 os_memcpy(buf, pref, sizeof(pref));
3784 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3785 buf_len - sizeof(pref) + 1,
3786 feat_cap, feat_cap_len);
3788 if (ret != (2 * (int) feat_cap_len))
3789 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3793 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3794 const u8 *adv_mac, const u8 *ses_mac,
3795 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3796 u8 conncap, int passwd_id,
3797 const u8 *persist_ssid,
3798 size_t persist_ssid_size, int response_done,
3799 int prov_start, const char *session_info,
3800 const u8 *feat_cap, size_t feat_cap_len)
3802 struct wpa_supplicant *wpa_s = ctx;
3804 struct wpa_ssid *persistent_go, *stale, *s;
3805 int save_config = 0;
3806 struct wpa_supplicant *go_wpa_s;
3807 char feat_cap_str[256];
3812 os_memset(mac, 0, ETH_ALEN);
3820 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3821 feat_cap, feat_cap_len);
3824 if (session_info == NULL) {
3825 wpa_msg_global(wpa_s, MSG_INFO,
3826 P2P_EVENT_P2PS_PROVISION_START MACSTR
3827 " adv_id=%x conncap=%x"
3829 " session=%x mac=" MACSTR
3830 " dev_passwd_id=%d%s",
3831 MAC2STR(dev), adv_id, conncap,
3833 ses_id, MAC2STR(ses_mac),
3834 passwd_id, feat_cap_str);
3836 wpa_msg_global(wpa_s, MSG_INFO,
3837 P2P_EVENT_P2PS_PROVISION_START MACSTR
3838 " adv_id=%x conncap=%x"
3840 " session=%x mac=" MACSTR
3841 " dev_passwd_id=%d info='%s'%s",
3842 MAC2STR(dev), adv_id, conncap,
3844 ses_id, MAC2STR(ses_mac),
3845 passwd_id, session_info, feat_cap_str);
3850 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3851 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3853 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3854 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3855 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3857 if (persistent_go && !persistent_go->num_p2p_clients) {
3858 /* remove empty persistent GO */
3859 wpa_config_remove_network(wpa_s->conf,
3863 wpa_msg_global(wpa_s, MSG_INFO,
3864 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3866 " adv_id=%x adv_mac=" MACSTR
3867 " session=%x mac=" MACSTR "%s",
3868 MAC2STR(dev), status,
3869 adv_id, MAC2STR(adv_mac),
3870 ses_id, MAC2STR(ses_mac), feat_cap_str);
3874 /* Clean up stale persistent groups with this device */
3875 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3878 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
3879 is_zero_ether_addr(grp_mac)) {
3880 wpa_dbg(wpa_s, MSG_ERROR,
3881 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3886 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3890 if (s && s->ssid_len == stale->ssid_len &&
3891 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3892 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3895 /* Remove stale persistent group */
3896 if (stale->mode != WPAS_MODE_P2P_GO ||
3897 stale->num_p2p_clients <= 1) {
3898 wpa_config_remove_network(wpa_s->conf, stale->id);
3902 for (i = 0; i < stale->num_p2p_clients; i++) {
3903 if (os_memcmp(stale->p2p_client_list +
3905 dev, ETH_ALEN) == 0) {
3906 os_memmove(stale->p2p_client_list +
3908 stale->p2p_client_list +
3910 (stale->num_p2p_clients -
3915 stale->num_p2p_clients--;
3921 p2p_config_write(wpa_s);
3924 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3925 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3927 if (persistent_go && s != persistent_go &&
3928 !persistent_go->num_p2p_clients) {
3929 /* remove empty persistent GO */
3930 wpa_config_remove_network(wpa_s->conf,
3935 wpa_msg_global(wpa_s, MSG_INFO,
3936 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3938 " adv_id=%x adv_mac=" MACSTR
3939 " session=%x mac=" MACSTR
3941 MAC2STR(dev), status,
3942 adv_id, MAC2STR(adv_mac),
3943 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
3947 if (conncap == P2PS_SETUP_GROUP_OWNER) {
3949 * We need to copy the interface name. Simply saving a
3950 * pointer isn't enough, since if we use pending_interface_name
3951 * it will be overwritten when the group is added.
3953 char go_ifname[100];
3955 go_ifname[0] = '\0';
3957 wpa_s->global->pending_p2ps_group = 1;
3959 if (!wpas_p2p_create_iface(wpa_s))
3960 os_memcpy(go_ifname, wpa_s->ifname,
3962 else if (wpa_s->pending_interface_name[0])
3963 os_memcpy(go_ifname,
3964 wpa_s->pending_interface_name,
3967 if (!go_ifname[0]) {
3968 wpas_p2ps_prov_complete(
3969 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3970 dev, adv_mac, ses_mac,
3971 grp_mac, adv_id, ses_id, 0, 0,
3972 NULL, 0, 0, 0, NULL, NULL, 0);
3976 /* If PD Resp complete, start up the GO */
3977 if (response_done && persistent_go) {
3978 wpas_p2p_group_add_persistent(
3979 wpa_s, persistent_go,
3980 0, 0, 0, 0, 0, NULL,
3981 persistent_go->mode ==
3983 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3985 } else if (response_done) {
3986 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3989 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3990 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
3992 wpa_s->p2ps_method_config_any = 1;
3994 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3995 os_memcpy(go_ifname, go_wpa_s->ifname,
3998 if (is_zero_ether_addr(grp_mac)) {
3999 wpa_dbg(go_wpa_s, MSG_DEBUG,
4000 "P2P: Setting PIN-1 for ANY");
4001 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4002 "12345670", NULL, 0,
4005 wpa_dbg(go_wpa_s, MSG_DEBUG,
4006 "P2P: Setting PIN-1 for " MACSTR,
4008 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4009 "12345670", NULL, 0,
4013 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4014 wpa_s->p2ps_method_config_any = 1;
4017 wpa_msg_global(wpa_s, MSG_INFO,
4018 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4019 " status=%d conncap=%x"
4020 " adv_id=%x adv_mac=" MACSTR
4021 " session=%x mac=" MACSTR
4022 " dev_passwd_id=%d go=%s%s",
4023 MAC2STR(dev), status, conncap,
4024 adv_id, MAC2STR(adv_mac),
4025 ses_id, MAC2STR(ses_mac),
4026 passwd_id, go_ifname, feat_cap_str);
4030 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4031 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4033 if (persistent_go && !persistent_go->num_p2p_clients) {
4034 /* remove empty persistent GO */
4035 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4038 if (conncap == P2PS_SETUP_CLIENT) {
4039 wpa_msg_global(wpa_s, MSG_INFO,
4040 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4041 " status=%d conncap=%x"
4042 " adv_id=%x adv_mac=" MACSTR
4043 " session=%x mac=" MACSTR
4044 " dev_passwd_id=%d join=" MACSTR "%s",
4045 MAC2STR(dev), status, conncap,
4046 adv_id, MAC2STR(adv_mac),
4047 ses_id, MAC2STR(ses_mac),
4048 passwd_id, MAC2STR(grp_mac), feat_cap_str);
4050 wpa_msg_global(wpa_s, MSG_INFO,
4051 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4052 " status=%d conncap=%x"
4053 " adv_id=%x adv_mac=" MACSTR
4054 " session=%x mac=" MACSTR
4055 " dev_passwd_id=%d%s",
4056 MAC2STR(dev), status, conncap,
4057 adv_id, MAC2STR(adv_mac),
4058 ses_id, MAC2STR(ses_mac),
4059 passwd_id, feat_cap_str);
4064 static int _wpas_p2p_in_progress(void *ctx)
4066 struct wpa_supplicant *wpa_s = ctx;
4067 return wpas_p2p_in_progress(wpa_s);
4071 static int wpas_prov_disc_resp_cb(void *ctx)
4073 struct wpa_supplicant *wpa_s = ctx;
4074 struct wpa_ssid *persistent_go;
4076 if (!wpa_s->global->pending_p2ps_group)
4079 wpa_s->global->pending_p2ps_group = 0;
4081 if (wpas_p2p_get_go_group(wpa_s))
4083 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4085 if (persistent_go) {
4086 wpas_p2p_group_add_persistent(
4087 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4088 persistent_go->mode == WPAS_MODE_P2P_GO ?
4089 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4091 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
4098 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4100 unsigned int *freq_list)
4102 struct wpa_supplicant *wpa_s = ctx;
4104 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4105 WPA_IF_P2P_CLIENT, len, freq_list);
4110 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4111 * @global: Pointer to global data from wpa_supplicant_init()
4112 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4113 * Returns: 0 on success, -1 on failure
4115 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4117 struct p2p_config p2p;
4120 if (wpa_s->conf->p2p_disabled)
4123 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4129 os_memset(&p2p, 0, sizeof(p2p));
4131 p2p.debug_print = wpas_p2p_debug_print;
4132 p2p.p2p_scan = wpas_p2p_scan;
4133 p2p.send_action = wpas_send_action;
4134 p2p.send_action_done = wpas_send_action_done;
4135 p2p.go_neg_completed = wpas_go_neg_completed;
4136 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4137 p2p.dev_found = wpas_dev_found;
4138 p2p.dev_lost = wpas_dev_lost;
4139 p2p.find_stopped = wpas_find_stopped;
4140 p2p.start_listen = wpas_start_listen;
4141 p2p.stop_listen = wpas_stop_listen;
4142 p2p.send_probe_resp = wpas_send_probe_resp;
4143 p2p.sd_request = wpas_sd_request;
4144 p2p.sd_response = wpas_sd_response;
4145 p2p.prov_disc_req = wpas_prov_disc_req;
4146 p2p.prov_disc_resp = wpas_prov_disc_resp;
4147 p2p.prov_disc_fail = wpas_prov_disc_fail;
4148 p2p.invitation_process = wpas_invitation_process;
4149 p2p.invitation_received = wpas_invitation_received;
4150 p2p.invitation_result = wpas_invitation_result;
4151 p2p.get_noa = wpas_get_noa;
4152 p2p.go_connected = wpas_go_connected;
4153 p2p.presence_resp = wpas_presence_resp;
4154 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4155 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4156 p2p.get_persistent_group = wpas_get_persistent_group;
4157 p2p.get_go_info = wpas_get_go_info;
4158 p2p.remove_stale_groups = wpas_remove_stale_groups;
4159 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4160 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4161 p2p.p2ps_group_capability = p2ps_group_capability;
4162 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4164 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4165 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4166 p2p.dev_name = wpa_s->conf->device_name;
4167 p2p.manufacturer = wpa_s->conf->manufacturer;
4168 p2p.model_name = wpa_s->conf->model_name;
4169 p2p.model_number = wpa_s->conf->model_number;
4170 p2p.serial_number = wpa_s->conf->serial_number;
4172 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4173 p2p.config_methods = wpa_s->wps->config_methods;
4176 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4177 wpa_printf(MSG_ERROR,
4178 "P2P: Failed to configure supported channel list");
4182 if (wpa_s->conf->p2p_listen_reg_class &&
4183 wpa_s->conf->p2p_listen_channel) {
4184 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4185 p2p.channel = wpa_s->conf->p2p_listen_channel;
4186 p2p.channel_forced = 1;
4189 * Pick one of the social channels randomly as the listen
4192 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4193 &p2p.channel) != 0) {
4194 wpa_printf(MSG_INFO,
4195 "P2P: No social channels supported by the driver - do not enable P2P");
4198 p2p.channel_forced = 0;
4200 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4201 p2p.reg_class, p2p.channel);
4203 if (wpa_s->conf->p2p_oper_reg_class &&
4204 wpa_s->conf->p2p_oper_channel) {
4205 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4206 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4207 p2p.cfg_op_channel = 1;
4208 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4209 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4213 * Use random operation channel from 2.4 GHz band social
4214 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4215 * other preference is indicated.
4217 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4218 &p2p.op_channel) != 0) {
4219 wpa_printf(MSG_ERROR,
4220 "P2P: Failed to select random social channel as operation channel");
4223 p2p.cfg_op_channel = 0;
4224 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4225 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4228 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4229 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4230 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4233 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4234 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4235 p2p.country[2] = 0x04;
4237 os_memcpy(p2p.country, "XX\x04", 3);
4239 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4242 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4243 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4244 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4246 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4247 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4249 p2p.max_peers = 100;
4251 if (wpa_s->conf->p2p_ssid_postfix) {
4252 p2p.ssid_postfix_len =
4253 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4254 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4255 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4256 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4257 p2p.ssid_postfix_len);
4260 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4262 p2p.max_listen = wpa_s->max_remain_on_chan;
4264 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4265 wpa_s->conf->p2p_passphrase_len <= 63)
4266 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4268 p2p.passphrase_len = 8;
4270 global->p2p = p2p_init(&p2p);
4271 if (global->p2p == NULL)
4273 global->p2p_init_wpa_s = wpa_s;
4275 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4276 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4278 p2p_add_wps_vendor_extension(
4279 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4282 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4289 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4290 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4292 * This function deinitialize per-interface P2P data.
4294 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4296 if (wpa_s->driver && wpa_s->drv_priv)
4297 wpa_drv_probe_req_report(wpa_s, 0);
4299 if (wpa_s->go_params) {
4300 /* Clear any stored provisioning info */
4301 p2p_clear_provisioning_info(
4303 wpa_s->go_params->peer_device_addr);
4306 os_free(wpa_s->go_params);
4307 wpa_s->go_params = NULL;
4308 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4309 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4310 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4311 wpa_s->p2p_long_listen = 0;
4312 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4313 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4314 wpas_p2p_remove_pending_group_interface(wpa_s);
4315 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4316 wpas_p2p_listen_work_done(wpa_s);
4317 if (wpa_s->p2p_send_action_work) {
4318 os_free(wpa_s->p2p_send_action_work->ctx);
4319 radio_work_done(wpa_s->p2p_send_action_work);
4320 wpa_s->p2p_send_action_work = NULL;
4322 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4324 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4325 wpa_s->p2p_oob_dev_pw = NULL;
4327 os_free(wpa_s->p2p_group_common_freqs);
4328 wpa_s->p2p_group_common_freqs = NULL;
4329 wpa_s->p2p_group_common_freqs_num = 0;
4331 /* TODO: remove group interface from the driver if this wpa_s instance
4332 * is on top of a P2P group interface */
4337 * wpas_p2p_deinit_global - Deinitialize global P2P module
4338 * @global: Pointer to global data from wpa_supplicant_init()
4340 * This function deinitializes the global (per device) P2P module.
4342 static void wpas_p2p_deinit_global(struct wpa_global *global)
4344 struct wpa_supplicant *wpa_s, *tmp;
4346 wpa_s = global->ifaces;
4348 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4350 /* Remove remaining P2P group interfaces */
4351 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4352 wpa_s = wpa_s->next;
4354 tmp = global->ifaces;
4357 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4362 /* Disconnect from the P2P group and deinit the interface */
4363 wpas_p2p_disconnect(tmp);
4367 * Deinit GO data on any possibly remaining interface (if main
4368 * interface is used as GO).
4370 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4371 if (wpa_s->ap_iface)
4372 wpas_p2p_group_deinit(wpa_s);
4375 p2p_deinit(global->p2p);
4377 global->p2p_init_wpa_s = NULL;
4381 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4383 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4384 wpa_s->conf->p2p_no_group_iface)
4385 return 0; /* separate interface disabled per configuration */
4386 if (wpa_s->drv_flags &
4387 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4388 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4389 return 1; /* P2P group requires a new interface in every case
4391 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4392 return 0; /* driver does not support concurrent operations */
4393 if (wpa_s->global->ifaces->next)
4394 return 1; /* more that one interface already in use */
4395 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4396 return 1; /* this interface is already in use */
4401 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4402 const u8 *peer_addr,
4403 enum p2p_wps_method wps_method,
4404 int go_intent, const u8 *own_interface_addr,
4405 unsigned int force_freq, int persistent_group,
4406 struct wpa_ssid *ssid, unsigned int pref_freq)
4408 if (persistent_group && wpa_s->conf->persistent_reconnect)
4409 persistent_group = 2;
4412 * Increase GO config timeout if HT40 is used since it takes some time
4413 * to scan channels for coex purposes before the BSS can be started.
4415 p2p_set_config_timeout(wpa_s->global->p2p,
4416 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4418 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4419 go_intent, own_interface_addr, force_freq,
4420 persistent_group, ssid ? ssid->ssid : NULL,
4421 ssid ? ssid->ssid_len : 0,
4422 wpa_s->p2p_pd_before_go_neg, pref_freq,
4423 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4428 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4429 const u8 *peer_addr,
4430 enum p2p_wps_method wps_method,
4431 int go_intent, const u8 *own_interface_addr,
4432 unsigned int force_freq, int persistent_group,
4433 struct wpa_ssid *ssid, unsigned int pref_freq)
4435 if (persistent_group && wpa_s->conf->persistent_reconnect)
4436 persistent_group = 2;
4438 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4439 go_intent, own_interface_addr, force_freq,
4440 persistent_group, ssid ? ssid->ssid : NULL,
4441 ssid ? ssid->ssid_len : 0, pref_freq,
4442 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4447 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4449 wpa_s->p2p_join_scan_count++;
4450 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4451 wpa_s->p2p_join_scan_count);
4452 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4453 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4454 " for join operationg - stop join attempt",
4455 MAC2STR(wpa_s->pending_join_iface_addr));
4456 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4457 if (wpa_s->p2p_auto_pd) {
4458 wpa_s->p2p_auto_pd = 0;
4459 wpa_msg_global(wpa_s, MSG_INFO,
4460 P2P_EVENT_PROV_DISC_FAILURE
4461 " p2p_dev_addr=" MACSTR " status=N/A",
4462 MAC2STR(wpa_s->pending_join_dev_addr));
4465 wpa_msg_global(wpa_s->parent, MSG_INFO,
4466 P2P_EVENT_GROUP_FORMATION_FAILURE);
4467 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4472 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4475 unsigned int num, i;
4476 struct wpa_used_freq_data *freqs;
4478 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4479 /* Multiple channels are supported and not all are in use */
4483 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4484 sizeof(struct wpa_used_freq_data));
4488 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4489 wpa_s->num_multichan_concurrent);
4491 for (i = 0; i < num; i++) {
4492 if (freqs[i].freq == freq) {
4493 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4500 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4509 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4510 const u8 *peer_dev_addr)
4512 struct wpa_bss *bss;
4515 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4518 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4519 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4524 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4526 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4527 "%ld.%06ld (%supdated in last scan)",
4528 bss->last_update.sec, bss->last_update.usec,
4529 updated ? "": "not ");
4535 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4536 struct wpa_scan_results *scan_res)
4538 struct wpa_bss *bss = NULL;
4540 u8 iface_addr[ETH_ALEN];
4542 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4544 if (wpa_s->global->p2p_disabled)
4547 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4548 scan_res ? (int) scan_res->num : -1,
4549 wpa_s->p2p_auto_join ? "auto_" : "");
4552 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4554 if (wpa_s->p2p_auto_pd) {
4555 int join = wpas_p2p_peer_go(wpa_s,
4556 wpa_s->pending_join_dev_addr);
4558 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4559 wpa_s->auto_pd_scan_retry++;
4560 bss = wpa_bss_get_bssid_latest(
4561 wpa_s, wpa_s->pending_join_dev_addr);
4564 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4565 "the peer " MACSTR " at %d MHz",
4566 wpa_s->auto_pd_scan_retry,
4568 pending_join_dev_addr),
4570 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4578 wpa_s->p2p_auto_pd = 0;
4579 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4580 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4581 MAC2STR(wpa_s->pending_join_dev_addr), join);
4582 if (p2p_prov_disc_req(wpa_s->global->p2p,
4583 wpa_s->pending_join_dev_addr, NULL,
4584 wpa_s->pending_pd_config_methods, join,
4585 0, wpa_s->user_initiated_pd) < 0) {
4586 wpa_s->p2p_auto_pd = 0;
4587 wpa_msg_global(wpa_s, MSG_INFO,
4588 P2P_EVENT_PROV_DISC_FAILURE
4589 " p2p_dev_addr=" MACSTR " status=N/A",
4590 MAC2STR(wpa_s->pending_join_dev_addr));
4595 if (wpa_s->p2p_auto_join) {
4596 int join = wpas_p2p_peer_go(wpa_s,
4597 wpa_s->pending_join_dev_addr);
4599 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4600 "running a GO -> use GO Negotiation");
4601 wpa_msg_global(wpa_s->parent, MSG_INFO,
4602 P2P_EVENT_FALLBACK_TO_GO_NEG
4603 "reason=peer-not-running-GO");
4604 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4605 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4606 wpa_s->p2p_persistent_group, 0, 0, 0,
4607 wpa_s->p2p_go_intent,
4608 wpa_s->p2p_connect_freq,
4609 wpa_s->p2p_persistent_id,
4610 wpa_s->p2p_pd_before_go_neg,
4616 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4617 "try to join the group", join ? "" :
4620 wpa_msg_global(wpa_s->parent, MSG_INFO,
4621 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4622 wpa_s->p2p_fallback_to_go_neg = 1;
4626 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4627 wpa_s->pending_join_iface_addr);
4629 p2p_get_interface_addr(wpa_s->global->p2p,
4630 wpa_s->pending_join_dev_addr,
4632 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4633 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4634 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4635 "address for join from " MACSTR " to " MACSTR
4636 " based on newly discovered P2P peer entry",
4637 MAC2STR(wpa_s->pending_join_iface_addr),
4638 MAC2STR(iface_addr));
4639 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4642 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4643 wpa_s->pending_join_iface_addr);
4646 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4647 "from P2P peer table: %d MHz", freq);
4649 if (wpa_s->p2p_join_ssid_len) {
4650 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4651 MACSTR " and SSID %s",
4652 MAC2STR(wpa_s->pending_join_iface_addr),
4653 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4654 wpa_s->p2p_join_ssid_len));
4655 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4656 wpa_s->p2p_join_ssid,
4657 wpa_s->p2p_join_ssid_len);
4660 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4661 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4662 bss = wpa_bss_get_bssid_latest(wpa_s,
4663 wpa_s->pending_join_iface_addr);
4666 u8 dev_addr[ETH_ALEN];
4669 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4670 "from BSS table: %d MHz (SSID %s)", freq,
4671 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4672 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4674 os_memcmp(wpa_s->pending_join_dev_addr,
4675 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4676 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4678 wpa_printf(MSG_DEBUG,
4679 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4681 MAC2STR(wpa_s->pending_join_dev_addr));
4682 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4689 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4690 wpa_msg_global(wpa_s->parent, MSG_INFO,
4691 P2P_EVENT_GROUP_FORMATION_FAILURE
4692 "reason=FREQ_CONFLICT");
4693 wpas_notify_p2p_group_formation_failure(
4694 wpa_s, "FREQ_CONFLICT");
4698 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4699 "prior to joining an existing group (GO " MACSTR
4701 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4702 wpa_s->pending_pd_before_join = 1;
4704 switch (wpa_s->pending_join_wps_method) {
4705 case WPS_PIN_DISPLAY:
4706 method = WPS_CONFIG_KEYPAD;
4708 case WPS_PIN_KEYPAD:
4709 method = WPS_CONFIG_DISPLAY;
4712 method = WPS_CONFIG_PUSHBUTTON;
4715 method = WPS_CONFIG_P2PS;
4722 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4723 wpa_s->pending_join_dev_addr) ==
4726 * We have already performed provision discovery for
4727 * joining the group. Proceed directly to join
4728 * operation without duplicated provision discovery. */
4729 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4730 "with " MACSTR " already done - proceed to "
4732 MAC2STR(wpa_s->pending_join_dev_addr));
4733 wpa_s->pending_pd_before_join = 0;
4737 if (p2p_prov_disc_req(wpa_s->global->p2p,
4738 wpa_s->pending_join_dev_addr,
4740 freq, wpa_s->user_initiated_pd) < 0) {
4741 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4742 "Discovery Request before joining an "
4744 wpa_s->pending_pd_before_join = 0;
4750 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4751 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4752 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4753 wpas_p2p_check_join_scan_limit(wpa_s);
4757 /* Start join operation immediately */
4758 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4762 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4763 const u8 *ssid, size_t ssid_len)
4766 struct wpa_driver_scan_params params;
4767 struct wpabuf *wps_ie, *ies;
4769 int freqs[2] = { 0, 0 };
4771 os_memset(¶ms, 0, sizeof(params));
4773 /* P2P Wildcard SSID */
4774 params.num_ssids = 1;
4775 if (ssid && ssid_len) {
4776 params.ssids[0].ssid = ssid;
4777 params.ssids[0].ssid_len = ssid_len;
4778 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4779 wpa_s->p2p_join_ssid_len = ssid_len;
4781 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4782 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4783 wpa_s->p2p_join_ssid_len = 0;
4786 wpa_s->wps->dev.p2p = 1;
4787 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4788 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4790 if (wps_ie == NULL) {
4791 wpas_p2p_scan_res_join(wpa_s, NULL);
4795 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4796 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4798 wpabuf_free(wps_ie);
4799 wpas_p2p_scan_res_join(wpa_s, NULL);
4802 wpabuf_put_buf(ies, wps_ie);
4803 wpabuf_free(wps_ie);
4805 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4807 params.p2p_probe = 1;
4808 params.extra_ies = wpabuf_head(ies);
4809 params.extra_ies_len = wpabuf_len(ies);
4814 * If freq is not provided, check the operating freq of the GO
4815 * and use a single channel scan on if possible.
4817 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4818 wpa_s->pending_join_iface_addr);
4824 params.freqs = freqs;
4828 * Run a scan to update BSS table and start Provision Discovery once
4829 * the new scan results become available.
4831 ret = wpa_drv_scan(wpa_s, ¶ms);
4833 os_get_reltime(&wpa_s->scan_trigger_time);
4834 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4835 wpa_s->own_scan_requested = 1;
4841 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4843 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4844 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4845 wpas_p2p_check_join_scan_limit(wpa_s);
4850 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4852 struct wpa_supplicant *wpa_s = eloop_ctx;
4853 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4857 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4858 const u8 *dev_addr, enum p2p_wps_method wps_method,
4859 int auto_join, int op_freq,
4860 const u8 *ssid, size_t ssid_len)
4862 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4863 MACSTR " dev " MACSTR " op_freq=%d)%s",
4864 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4865 auto_join ? " (auto_join)" : "");
4866 if (ssid && ssid_len) {
4867 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4868 wpa_ssid_txt(ssid, ssid_len));
4871 wpa_s->p2p_auto_pd = 0;
4872 wpa_s->p2p_auto_join = !!auto_join;
4873 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4874 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4875 wpa_s->pending_join_wps_method = wps_method;
4877 /* Make sure we are not running find during connection establishment */
4878 wpas_p2p_stop_find(wpa_s);
4880 wpa_s->p2p_join_scan_count = 0;
4881 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4886 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4887 const u8 *ssid, size_t ssid_len)
4889 struct wpa_supplicant *group;
4890 struct p2p_go_neg_results res;
4891 struct wpa_bss *bss;
4893 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4896 if (group != wpa_s) {
4897 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4898 sizeof(group->p2p_pin));
4899 group->p2p_wps_method = wpa_s->p2p_wps_method;
4902 * Need to mark the current interface for p2p_group_formation
4903 * when a separate group interface is not used. This is needed
4904 * to allow p2p_cancel stop a pending p2p_connect-join.
4905 * wpas_p2p_init_group_interface() addresses this for the case
4906 * where a separate group interface is used.
4908 wpa_s->global->p2p_group_formation = wpa_s;
4911 group->p2p_in_provisioning = 1;
4912 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4914 os_memset(&res, 0, sizeof(res));
4915 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4916 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4918 res.wps_method = wpa_s->pending_join_wps_method;
4919 if (freq && ssid && ssid_len) {
4921 res.ssid_len = ssid_len;
4922 os_memcpy(res.ssid, ssid, ssid_len);
4924 bss = wpa_bss_get_bssid_latest(wpa_s,
4925 wpa_s->pending_join_iface_addr);
4927 res.freq = bss->freq;
4928 res.ssid_len = bss->ssid_len;
4929 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4930 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4932 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4936 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4937 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4939 wpa_drv_cancel_remain_on_channel(wpa_s);
4940 wpa_s->off_channel_freq = 0;
4941 wpa_s->roc_waiting_drv_freq = 0;
4943 wpas_start_wps_enrollee(group, &res);
4946 * Allow a longer timeout for join-a-running-group than normal 15
4947 * second group formation timeout since the GO may not have authorized
4948 * our connection yet.
4950 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4951 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4958 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4959 int *force_freq, int *pref_freq, int go,
4960 unsigned int *pref_freq_list,
4961 unsigned int *num_pref_freq)
4963 struct wpa_used_freq_data *freqs;
4964 int res, best_freq, num_unused;
4965 unsigned int freq_in_use = 0, num, i, max_pref_freq;
4967 max_pref_freq = *num_pref_freq;
4970 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4971 sizeof(struct wpa_used_freq_data));
4975 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4976 wpa_s->num_multichan_concurrent);
4979 * It is possible that the total number of used frequencies is bigger
4980 * than the number of frequencies used for P2P, so get the system wide
4981 * number of unused frequencies.
4983 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4985 wpa_printf(MSG_DEBUG,
4986 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4987 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4992 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4994 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4996 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4997 ieee80211_is_dfs(freq)) {
4999 * If freq is a DFS channel and DFS is offloaded
5000 * to the driver, allow P2P GO to use it.
5002 wpa_printf(MSG_DEBUG,
5003 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5006 wpa_printf(MSG_DEBUG,
5007 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5014 for (i = 0; i < num; i++) {
5015 if (freqs[i].freq == freq)
5019 if (num_unused <= 0 && !freq_in_use) {
5020 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5025 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5026 "requested channel (%u MHz)", freq);
5031 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5033 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5034 enum wpa_driver_if_type iface_type;
5037 iface_type = WPA_IF_P2P_GO;
5039 iface_type = WPA_IF_P2P_CLIENT;
5041 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5044 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5047 if (!res && max_pref_freq > 0) {
5048 *num_pref_freq = max_pref_freq;
5050 while (wpas_p2p_disallowed_freq(wpa_s->global,
5051 pref_freq_list[i]) &&
5052 i < *num_pref_freq) {
5053 wpa_printf(MSG_DEBUG,
5054 "P2P: preferred_freq_list[%d]=%d is disallowed",
5055 i, pref_freq_list[i]);
5058 if (i != *num_pref_freq) {
5059 best_freq = pref_freq_list[i];
5060 wpa_printf(MSG_DEBUG,
5061 "P2P: Using preferred_freq_list[%d]=%d",
5064 wpa_printf(MSG_DEBUG,
5065 "P2P: All driver preferred frequencies are disallowed for P2P use");
5069 wpa_printf(MSG_DEBUG,
5070 "P2P: No preferred frequency list available");
5074 /* We have a candidate frequency to use */
5075 if (best_freq > 0) {
5076 if (*pref_freq == 0 && num_unused > 0) {
5077 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5079 *pref_freq = best_freq;
5081 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5083 *force_freq = best_freq;
5085 } else if (num_unused > 0) {
5086 wpa_printf(MSG_DEBUG,
5087 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5090 wpa_printf(MSG_DEBUG,
5091 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5105 * wpas_p2p_connect - Request P2P Group Formation to be started
5106 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5107 * @peer_addr: Address of the peer P2P Device
5108 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5109 * @persistent_group: Whether to create a persistent group
5110 * @auto_join: Whether to select join vs. GO Negotiation automatically
5111 * @join: Whether to join an existing group (as a client) instead of starting
5112 * Group Owner negotiation; @peer_addr is BSSID in that case
5113 * @auth: Whether to only authorize the connection instead of doing that and
5114 * initiating Group Owner negotiation
5115 * @go_intent: GO Intent or -1 to use default
5116 * @freq: Frequency for the group or 0 for auto-selection
5117 * @persistent_id: Persistent group credentials to use for forcing GO
5118 * parameters or -1 to generate new values (SSID/passphrase)
5119 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5120 * interoperability workaround when initiating group formation
5121 * @ht40: Start GO with 40 MHz channel width
5122 * @vht: Start GO with VHT support
5123 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5124 * failure, -2 on failure due to channel not currently available,
5125 * -3 if forced channel is not supported
5127 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5128 const char *pin, enum p2p_wps_method wps_method,
5129 int persistent_group, int auto_join, int join, int auth,
5130 int go_intent, int freq, int persistent_id, int pd,
5133 int force_freq = 0, pref_freq = 0;
5135 enum wpa_driver_if_type iftype;
5137 struct wpa_ssid *ssid = NULL;
5138 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5140 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5143 if (persistent_id >= 0) {
5144 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5145 if (ssid == NULL || ssid->disabled != 2 ||
5146 ssid->mode != WPAS_MODE_P2P_GO)
5150 os_free(wpa_s->global->add_psk);
5151 wpa_s->global->add_psk = NULL;
5153 wpa_s->global->p2p_fail_on_wps_complete = 0;
5154 wpa_s->global->pending_p2ps_group = 0;
5155 wpa_s->p2ps_method_config_any = 0;
5158 go_intent = wpa_s->conf->p2p_go_intent;
5161 wpa_s->p2p_long_listen = 0;
5163 wpa_s->p2p_wps_method = wps_method;
5164 wpa_s->p2p_persistent_group = !!persistent_group;
5165 wpa_s->p2p_persistent_id = persistent_id;
5166 wpa_s->p2p_go_intent = go_intent;
5167 wpa_s->p2p_connect_freq = freq;
5168 wpa_s->p2p_fallback_to_go_neg = 0;
5169 wpa_s->p2p_pd_before_go_neg = !!pd;
5170 wpa_s->p2p_go_ht40 = !!ht40;
5171 wpa_s->p2p_go_vht = !!vht;
5174 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5175 else if (wps_method == WPS_PIN_DISPLAY) {
5176 ret = wps_generate_pin();
5177 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5179 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5180 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5181 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5184 wpa_s->p2p_pin[0] = '\0';
5186 if (join || auto_join) {
5187 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5189 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5190 "connect a running group from " MACSTR,
5191 MAC2STR(peer_addr));
5192 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5195 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5196 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5198 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5199 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5203 os_get_reltime(&wpa_s->p2p_auto_started);
5204 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5206 wpa_s->p2p_auto_started.sec,
5207 wpa_s->p2p_auto_started.usec);
5209 wpa_s->user_initiated_pd = 1;
5210 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5211 auto_join, freq, NULL, 0) < 0)
5216 size = P2P_MAX_PREF_CHANNELS;
5217 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5218 go_intent == 15, pref_freq_list, &size);
5221 wpas_p2p_set_own_freq_preference(wpa_s,
5222 force_freq ? force_freq : pref_freq);
5224 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5226 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5228 if (wpa_s->create_p2p_iface) {
5229 /* Prepare to add a new interface for the group */
5230 iftype = WPA_IF_P2P_GROUP;
5231 if (go_intent == 15)
5232 iftype = WPA_IF_P2P_GO;
5233 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5234 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5235 "interface for the group");
5239 if_addr = wpa_s->pending_interface_addr;
5241 if_addr = wpa_s->own_addr;
5242 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5246 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5248 force_freq, persistent_group, ssid,
5254 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5255 go_intent, if_addr, force_freq,
5256 persistent_group, ssid, pref_freq) < 0) {
5257 if (wpa_s->create_p2p_iface)
5258 wpas_p2p_remove_pending_group_interface(wpa_s);
5266 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5267 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5268 * @freq: Frequency of the channel in MHz
5269 * @duration: Duration of the stay on the channel in milliseconds
5271 * This callback is called when the driver indicates that it has started the
5272 * requested remain-on-channel duration.
5274 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5275 unsigned int freq, unsigned int duration)
5277 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5279 wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
5280 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5281 wpa_s->roc_waiting_drv_freq, freq, duration);
5282 if (wpa_s->off_channel_freq &&
5283 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5284 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5285 wpa_s->pending_listen_duration);
5286 wpa_s->pending_listen_freq = 0;
5288 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5289 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5295 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5297 /* Limit maximum Listen state time based on driver limitation. */
5298 if (timeout > wpa_s->max_remain_on_chan)
5299 timeout = wpa_s->max_remain_on_chan;
5301 return p2p_listen(wpa_s->global->p2p, timeout);
5306 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5307 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5308 * @freq: Frequency of the channel in MHz
5310 * This callback is called when the driver indicates that a remain-on-channel
5311 * operation has been completed, i.e., the duration on the requested channel
5314 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5317 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5318 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5319 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5320 wpas_p2p_listen_work_done(wpa_s);
5321 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5323 if (wpa_s->p2p_long_listen > 0)
5324 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5325 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5326 return; /* P2P module started a new operation */
5327 if (offchannel_pending_action_tx(wpa_s))
5329 if (wpa_s->p2p_long_listen > 0) {
5330 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5331 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5334 * When listen duration is over, stop listen & update p2p_state
5337 p2p_stop_listen(wpa_s->global->p2p);
5343 * wpas_p2p_group_remove - Remove a P2P group
5344 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5345 * @ifname: Network interface name of the group interface or "*" to remove all
5347 * Returns: 0 on success, -1 on failure
5349 * This function is used to remove a P2P group. This can be used to disconnect
5350 * from a group in which the local end is a P2P Client or to end a P2P Group in
5351 * case the local end is the Group Owner. If a virtual network interface was
5352 * created for this group, that interface will be removed. Otherwise, only the
5353 * configured P2P group network will be removed from the interface.
5355 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5357 struct wpa_global *global = wpa_s->global;
5358 struct wpa_supplicant *calling_wpa_s = wpa_s;
5360 if (os_strcmp(ifname, "*") == 0) {
5361 struct wpa_supplicant *prev;
5362 wpa_s = global->ifaces;
5365 wpa_s = wpa_s->next;
5366 if (prev->p2p_group_interface !=
5367 NOT_P2P_GROUP_INTERFACE ||
5368 (prev->current_ssid &&
5369 prev->current_ssid->p2p_group))
5370 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5375 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5376 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5380 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5384 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5388 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5389 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5390 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5393 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5394 &size, pref_freq_list);
5395 if (!res && size > 0) {
5397 while (wpas_p2p_disallowed_freq(wpa_s->global,
5398 pref_freq_list[i]) &&
5400 wpa_printf(MSG_DEBUG,
5401 "P2P: preferred_freq_list[%d]=%d is disallowed",
5402 i, pref_freq_list[i]);
5406 freq = pref_freq_list[i];
5407 wpa_printf(MSG_DEBUG,
5408 "P2P: Using preferred_freq_list[%d]=%d",
5411 wpa_printf(MSG_DEBUG,
5412 "P2P: All driver preferred frequencies are disallowed for P2P use");
5415 wpa_printf(MSG_DEBUG,
5416 "P2P: No preferred frequency list available");
5421 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5423 if (wpa_s->best_24_freq > 0 &&
5424 p2p_supported_freq_go(wpa_s->global->p2p,
5425 wpa_s->best_24_freq)) {
5426 freq = wpa_s->best_24_freq;
5427 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5428 "channel: %d MHz", freq);
5430 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5432 freq = 2412 + (r % 3) * 25;
5433 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5434 "channel: %d MHz", freq);
5439 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5441 if (wpa_s->best_5_freq > 0 &&
5442 p2p_supported_freq_go(wpa_s->global->p2p,
5443 wpa_s->best_5_freq)) {
5444 freq = wpa_s->best_5_freq;
5445 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5446 "channel: %d MHz", freq);
5448 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5450 freq = 5180 + (r % 4) * 20;
5451 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5452 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5453 "5 GHz channel for P2P group");
5456 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5457 "channel: %d MHz", freq);
5461 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5462 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5463 ieee80211_is_dfs(freq)) {
5465 * If freq is a DFS channel and DFS is offloaded to the
5466 * driver, allow P2P GO to use it.
5468 wpa_printf(MSG_DEBUG, "P2P: "
5469 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5473 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5474 "(%u MHz) is not supported for P2P uses",
5483 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5484 const struct p2p_channels *channels,
5487 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5488 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5489 freq_included(wpa_s, channels, freq))
5495 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5496 struct p2p_go_neg_results *params,
5497 const struct p2p_channels *channels)
5501 /* first try some random selection of the social channels */
5502 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5505 for (i = 0; i < 3; i++) {
5506 params->freq = 2412 + ((r + i) % 3) * 25;
5507 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5511 /* try all other channels in operating class 81 */
5512 for (i = 0; i < 11; i++) {
5513 params->freq = 2412 + i * 5;
5515 /* skip social channels; covered in the previous loop */
5516 if (params->freq == 2412 ||
5517 params->freq == 2437 ||
5518 params->freq == 2462)
5521 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5525 /* try all channels in operating class 115 */
5526 for (i = 0; i < 4; i++) {
5527 params->freq = 5180 + i * 20;
5528 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5529 freq_included(wpa_s, channels, params->freq) &&
5530 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5534 /* try all channels in operating class 124 */
5535 for (i = 0; i < 4; i++) {
5536 params->freq = 5745 + i * 20;
5537 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5538 freq_included(wpa_s, channels, params->freq) &&
5539 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5543 /* try social channel class 180 channel 2 */
5544 params->freq = 58320 + 1 * 2160;
5545 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5546 freq_included(wpa_s, channels, params->freq) &&
5547 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5550 /* try all channels in reg. class 180 */
5551 for (i = 0; i < 4; i++) {
5552 params->freq = 58320 + i * 2160;
5553 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5554 freq_included(wpa_s, channels, params->freq) &&
5555 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5560 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5563 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5568 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5569 struct p2p_go_neg_results *params,
5570 int freq, int ht40, int vht,
5571 const struct p2p_channels *channels)
5573 struct wpa_used_freq_data *freqs;
5575 unsigned int num, i;
5576 int ignore_no_freqs = 0;
5578 os_memset(params, 0, sizeof(*params));
5579 params->role_go = 1;
5580 params->ht40 = ht40;
5583 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5584 sizeof(struct wpa_used_freq_data));
5588 num = get_shared_radio_freqs_data(wpa_s, freqs,
5589 wpa_s->num_multichan_concurrent);
5591 if (wpa_s->current_ssid &&
5592 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5593 wpa_s->wpa_state == WPA_COMPLETED) {
5594 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5598 * If the frequency selection is done for an active P2P GO that
5599 * is not sharing a frequency, allow to select a new frequency
5600 * even if there are no unused frequencies as we are about to
5601 * move the P2P GO so its frequency can be re-used.
5603 for (i = 0; i < num; i++) {
5604 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5605 freqs[i].flags == 0) {
5606 ignore_no_freqs = 1;
5612 /* try using the forced freq */
5614 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5615 wpa_printf(MSG_DEBUG,
5616 "P2P: Forced GO freq %d MHz not accepted",
5621 for (i = 0; i < num; i++) {
5622 if (freqs[i].freq == freq) {
5623 wpa_printf(MSG_DEBUG,
5624 "P2P: forced freq (%d MHz) is also shared",
5626 params->freq = freq;
5631 if (!ignore_no_freqs &&
5632 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5633 wpa_printf(MSG_DEBUG,
5634 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5639 wpa_printf(MSG_DEBUG,
5640 "P2P: force GO freq (%d MHz) on a free channel",
5642 params->freq = freq;
5646 /* consider using one of the shared frequencies */
5648 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5649 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5650 wpa_printf(MSG_DEBUG,
5651 "P2P: Use shared freq (%d MHz) for GO",
5653 params->freq = cand;
5657 /* try using one of the shared freqs */
5658 for (i = 0; i < num; i++) {
5659 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5661 wpa_printf(MSG_DEBUG,
5662 "P2P: Use shared freq (%d MHz) for GO",
5664 params->freq = freqs[i].freq;
5670 if (!ignore_no_freqs &&
5671 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5672 wpa_printf(MSG_DEBUG,
5673 "P2P: Cannot force GO on any of the channels we are already using");
5677 /* try using the setting from the configuration file */
5678 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5679 wpa_s->conf->p2p_oper_channel >= 1 &&
5680 wpa_s->conf->p2p_oper_channel <= 11 &&
5681 wpas_p2p_supported_freq_go(
5683 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5684 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5685 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5686 "frequency %d MHz", params->freq);
5690 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5691 wpa_s->conf->p2p_oper_reg_class == 116 ||
5692 wpa_s->conf->p2p_oper_reg_class == 117 ||
5693 wpa_s->conf->p2p_oper_reg_class == 124 ||
5694 wpa_s->conf->p2p_oper_reg_class == 125 ||
5695 wpa_s->conf->p2p_oper_reg_class == 126 ||
5696 wpa_s->conf->p2p_oper_reg_class == 127) &&
5697 wpas_p2p_supported_freq_go(wpa_s, channels,
5699 5 * wpa_s->conf->p2p_oper_channel)) {
5700 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5701 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5702 "frequency %d MHz", params->freq);
5706 /* Try using best channels */
5707 if (wpa_s->conf->p2p_oper_channel == 0 &&
5708 wpa_s->best_overall_freq > 0 &&
5709 wpas_p2p_supported_freq_go(wpa_s, channels,
5710 wpa_s->best_overall_freq)) {
5711 params->freq = wpa_s->best_overall_freq;
5712 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5713 "channel %d MHz", params->freq);
5717 if (wpa_s->conf->p2p_oper_channel == 0 &&
5718 wpa_s->best_24_freq > 0 &&
5719 wpas_p2p_supported_freq_go(wpa_s, channels,
5720 wpa_s->best_24_freq)) {
5721 params->freq = wpa_s->best_24_freq;
5722 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5723 "channel %d MHz", params->freq);
5727 if (wpa_s->conf->p2p_oper_channel == 0 &&
5728 wpa_s->best_5_freq > 0 &&
5729 wpas_p2p_supported_freq_go(wpa_s, channels,
5730 wpa_s->best_5_freq)) {
5731 params->freq = wpa_s->best_5_freq;
5732 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5733 "channel %d MHz", params->freq);
5737 /* try using preferred channels */
5738 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5739 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5740 params->freq = cand;
5741 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5742 "channels", params->freq);
5746 /* Try using one of the group common freqs */
5747 if (wpa_s->p2p_group_common_freqs) {
5748 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5749 cand = wpa_s->p2p_group_common_freqs[i];
5750 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5751 params->freq = cand;
5752 wpa_printf(MSG_DEBUG,
5753 "P2P: Use freq %d MHz common with the peer",
5760 /* no preference, select some channel */
5761 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5763 if (params->freq == 0) {
5764 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5777 static struct wpa_supplicant *
5778 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5781 struct wpa_supplicant *group_wpa_s;
5783 if (!wpas_p2p_create_iface(wpa_s)) {
5784 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5786 wpa_s->p2p_first_connection_timeout = 0;
5790 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5791 WPA_IF_P2P_CLIENT) < 0) {
5792 wpa_msg_global(wpa_s, MSG_ERROR,
5793 "P2P: Failed to add group interface");
5796 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5797 if (group_wpa_s == NULL) {
5798 wpa_msg_global(wpa_s, MSG_ERROR,
5799 "P2P: Failed to initialize group interface");
5800 wpas_p2p_remove_pending_group_interface(wpa_s);
5804 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5805 group_wpa_s->ifname);
5806 group_wpa_s->p2p_first_connection_timeout = 0;
5812 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5813 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5814 * @persistent_group: Whether to create a persistent group
5815 * @freq: Frequency for the group or 0 to indicate no hardcoding
5816 * @ht40: Start GO with 40 MHz channel width
5817 * @vht: Start GO with VHT support
5818 * Returns: 0 on success, -1 on failure
5820 * This function creates a new P2P group with the local end as the Group Owner,
5821 * i.e., without using Group Owner Negotiation.
5823 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5824 int freq, int ht40, int vht)
5826 struct p2p_go_neg_results params;
5828 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5831 os_free(wpa_s->global->add_psk);
5832 wpa_s->global->add_psk = NULL;
5834 /* Make sure we are not running find during connection establishment */
5835 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5836 wpas_p2p_stop_find_oper(wpa_s);
5838 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5842 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5845 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5846 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5847 ieee80211_is_dfs(params.freq)) {
5849 * If freq is a DFS channel and DFS is offloaded to the
5850 * driver, allow P2P GO to use it.
5852 wpa_printf(MSG_DEBUG,
5853 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5854 __func__, params.freq);
5856 wpa_printf(MSG_DEBUG,
5857 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5862 p2p_go_params(wpa_s->global->p2p, ¶ms);
5863 params.persistent_group = persistent_group;
5865 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5868 wpas_start_wps_go(wpa_s, ¶ms, 0);
5874 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5875 struct wpa_ssid *params, int addr_allocated,
5876 int freq, int force_scan)
5878 struct wpa_ssid *ssid;
5880 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5884 os_get_reltime(&wpa_s->scan_min_time);
5885 wpa_s->p2p_last_4way_hs_fail = NULL;
5887 wpa_supplicant_ap_deinit(wpa_s);
5889 ssid = wpa_config_add_network(wpa_s->conf);
5892 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5893 wpa_config_set_network_defaults(ssid);
5894 ssid->temporary = 1;
5895 ssid->proto = WPA_PROTO_RSN;
5896 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5897 ssid->group_cipher = WPA_CIPHER_CCMP;
5898 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5899 ssid->ssid = os_malloc(params->ssid_len);
5900 if (ssid->ssid == NULL) {
5901 wpa_config_remove_network(wpa_s->conf, ssid->id);
5904 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5905 ssid->ssid_len = params->ssid_len;
5906 ssid->p2p_group = 1;
5907 ssid->export_keys = 1;
5908 if (params->psk_set) {
5909 os_memcpy(ssid->psk, params->psk, 32);
5912 if (params->passphrase)
5913 ssid->passphrase = os_strdup(params->passphrase);
5915 wpa_s->show_group_started = 1;
5916 wpa_s->p2p_in_invitation = 1;
5917 wpa_s->p2p_invite_go_freq = freq;
5919 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5921 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5922 wpas_p2p_group_formation_timeout,
5923 wpa_s->parent, NULL);
5924 wpa_supplicant_select_network(wpa_s, ssid);
5930 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5931 struct wpa_ssid *ssid, int addr_allocated,
5932 int force_freq, int neg_freq, int ht40,
5933 int vht, const struct p2p_channels *channels,
5934 int connection_timeout, int force_scan)
5936 struct p2p_go_neg_results params;
5939 if (ssid->disabled != 2 || ssid->ssid == NULL)
5942 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5943 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5944 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5947 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5948 wpa_s->parent, NULL)) {
5950 * This can happen if Invitation Response frame was lost
5951 * and the peer (GO of a persistent group) tries to
5952 * invite us again. Reschedule the timeout to avoid
5953 * terminating the wait for the connection too early
5954 * since we now know that the peer is still trying to
5955 * invite us instead of having already started the GO.
5957 wpa_printf(MSG_DEBUG,
5958 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5959 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5960 wpas_p2p_group_formation_timeout,
5961 wpa_s->parent, NULL);
5966 os_free(wpa_s->global->add_psk);
5967 wpa_s->global->add_psk = NULL;
5969 /* Make sure we are not running find during connection establishment */
5970 wpas_p2p_stop_find_oper(wpa_s);
5972 wpa_s->p2p_fallback_to_go_neg = 0;
5974 if (ssid->mode == WPAS_MODE_P2P_GO) {
5975 if (force_freq > 0) {
5976 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5980 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5982 (freq > 0 && !freq_included(wpa_s, channels, freq)))
5985 } else if (ssid->mode == WPAS_MODE_INFRA) {
5987 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
5988 struct os_reltime now;
5989 struct wpa_bss *bss =
5990 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5992 os_get_reltime(&now);
5994 !os_reltime_expired(&now, &bss->last_update, 5) &&
5995 freq_included(wpa_s, channels, bss->freq))
6001 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6007 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
6011 params.psk_set = ssid->psk_set;
6013 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6014 if (ssid->passphrase) {
6015 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6016 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6017 "persistent group");
6020 os_strlcpy(params.passphrase, ssid->passphrase,
6021 sizeof(params.passphrase));
6023 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6024 params.ssid_len = ssid->ssid_len;
6025 params.persistent_group = 1;
6027 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6031 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6033 wpa_s->p2p_first_connection_timeout = connection_timeout;
6034 wpas_start_wps_go(wpa_s, ¶ms, 0);
6040 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6041 struct wpabuf *proberesp_ies)
6043 struct wpa_supplicant *wpa_s = ctx;
6044 if (wpa_s->ap_iface) {
6045 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6046 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6047 wpabuf_free(beacon_ies);
6048 wpabuf_free(proberesp_ies);
6052 wpabuf_free(hapd->p2p_beacon_ie);
6053 hapd->p2p_beacon_ie = beacon_ies;
6055 wpabuf_free(hapd->p2p_probe_resp_ie);
6056 hapd->p2p_probe_resp_ie = proberesp_ies;
6058 wpabuf_free(beacon_ies);
6059 wpabuf_free(proberesp_ies);
6061 wpa_supplicant_ap_update_beacon(wpa_s);
6065 static void wpas_p2p_idle_update(void *ctx, int idle)
6067 struct wpa_supplicant *wpa_s = ctx;
6068 if (!wpa_s->ap_iface)
6070 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6072 if (wpa_s->global->p2p_fail_on_wps_complete &&
6073 wpa_s->p2p_in_provisioning) {
6074 wpas_p2p_grpform_fail_after_wps(wpa_s);
6077 wpas_p2p_set_group_idle_timeout(wpa_s);
6079 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6083 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6084 struct wpa_ssid *ssid)
6086 struct p2p_group *group;
6087 struct p2p_group_config *cfg;
6089 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6092 cfg = os_zalloc(sizeof(*cfg));
6096 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6097 cfg->persistent_group = 2;
6098 else if (ssid->p2p_persistent_group)
6099 cfg->persistent_group = 1;
6100 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6101 if (wpa_s->max_stations &&
6102 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6103 cfg->max_clients = wpa_s->max_stations;
6105 cfg->max_clients = wpa_s->conf->max_num_sta;
6106 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6107 cfg->ssid_len = ssid->ssid_len;
6108 cfg->freq = ssid->frequency;
6109 cfg->cb_ctx = wpa_s;
6110 cfg->ie_update = wpas_p2p_ie_update;
6111 cfg->idle_update = wpas_p2p_idle_update;
6113 group = p2p_group_init(wpa_s->global->p2p, cfg);
6116 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6117 p2p_group_notif_formation_done(group);
6118 wpa_s->p2p_group = group;
6123 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6126 struct wpa_ssid *ssid = wpa_s->current_ssid;
6128 if (!wpa_s->p2p_in_provisioning) {
6129 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6130 "provisioning not in progress");
6134 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6135 u8 go_dev_addr[ETH_ALEN];
6136 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6137 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6139 /* Clear any stored provisioning info */
6140 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6143 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6145 wpa_s->p2p_go_group_formation_completed = 1;
6146 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6148 * Use a separate timeout for initial data connection to
6149 * complete to allow the group to be removed automatically if
6150 * something goes wrong in this step before the P2P group idle
6151 * timeout mechanism is taken into use.
6153 wpa_dbg(wpa_s, MSG_DEBUG,
6154 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6155 P2P_MAX_INITIAL_CONN_WAIT);
6156 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6157 wpas_p2p_group_formation_timeout,
6158 wpa_s->parent, NULL);
6161 * Use a separate timeout for initial data connection to
6162 * complete to allow the group to be removed automatically if
6163 * the client does not complete data connection successfully.
6165 wpa_dbg(wpa_s, MSG_DEBUG,
6166 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6167 P2P_MAX_INITIAL_CONN_WAIT_GO);
6168 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6169 wpas_p2p_group_formation_timeout,
6170 wpa_s->parent, NULL);
6172 * Complete group formation on first successful data connection
6174 wpa_s->p2p_go_group_formation_completed = 0;
6176 if (wpa_s->global->p2p)
6177 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6178 wpas_group_formation_completed(wpa_s, 1, 0);
6182 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6183 struct wps_event_fail *fail)
6185 if (!wpa_s->p2p_in_provisioning) {
6186 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6187 "provisioning not in progress");
6191 if (wpa_s->go_params) {
6192 p2p_clear_provisioning_info(
6194 wpa_s->go_params->peer_device_addr);
6197 wpas_notify_p2p_wps_failed(wpa_s, fail);
6199 if (wpa_s == wpa_s->global->p2p_group_formation) {
6201 * Allow some time for the failed WPS negotiation exchange to
6202 * complete, but remove the group since group formation cannot
6203 * succeed after provisioning failure.
6205 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6206 wpa_s->global->p2p_fail_on_wps_complete = 1;
6207 eloop_deplete_timeout(0, 50000,
6208 wpas_p2p_group_formation_timeout,
6209 wpa_s->parent, NULL);
6214 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6216 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6217 !wpa_s->p2p_in_provisioning)
6220 wpas_p2p_grpform_fail_after_wps(wpa_s);
6226 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6227 const char *config_method,
6228 enum wpas_p2p_prov_disc_use use,
6229 struct p2ps_provision *p2ps_prov)
6233 wpa_s->global->pending_p2ps_group = 0;
6234 wpa_s->p2p_fallback_to_go_neg = 0;
6235 wpa_s->pending_pd_use = NORMAL_PD;
6236 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6237 p2ps_prov->conncap = p2ps_group_capability(
6238 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
6239 wpa_printf(MSG_DEBUG,
6240 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6241 __func__, p2ps_prov->conncap,
6242 p2ps_prov->adv_id, p2ps_prov->conncap,
6243 p2ps_prov->status, p2ps_prov->info);
6246 } else if (os_strncmp(config_method, "display", 7) == 0)
6247 config_methods = WPS_CONFIG_DISPLAY;
6248 else if (os_strncmp(config_method, "keypad", 6) == 0)
6249 config_methods = WPS_CONFIG_KEYPAD;
6250 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6251 os_strncmp(config_method, "pushbutton", 10) == 0)
6252 config_methods = WPS_CONFIG_PUSHBUTTON;
6254 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6259 if (use == WPAS_P2P_PD_AUTO) {
6260 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6261 wpa_s->pending_pd_config_methods = config_methods;
6262 wpa_s->p2p_auto_pd = 1;
6263 wpa_s->p2p_auto_join = 0;
6264 wpa_s->pending_pd_before_join = 0;
6265 wpa_s->auto_pd_scan_retry = 0;
6266 wpas_p2p_stop_find(wpa_s);
6267 wpa_s->p2p_join_scan_count = 0;
6268 os_get_reltime(&wpa_s->p2p_auto_started);
6269 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6270 wpa_s->p2p_auto_started.sec,
6271 wpa_s->p2p_auto_started.usec);
6272 wpas_p2p_join_scan(wpa_s, NULL);
6276 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6281 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6282 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6287 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6290 return p2p_scan_result_text(ies, ies_len, buf, end);
6294 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6296 if (!offchannel_pending_action_tx(wpa_s))
6299 wpas_p2p_action_tx_clear(wpa_s);
6301 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6302 "operation request");
6303 offchannel_clear_pending_action_tx(wpa_s);
6307 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6308 enum p2p_discovery_type type,
6309 unsigned int num_req_dev_types, const u8 *req_dev_types,
6310 const u8 *dev_id, unsigned int search_delay,
6311 u8 seek_cnt, const char **seek_string, int freq)
6313 wpas_p2p_clear_pending_action_tx(wpa_s);
6314 wpa_s->p2p_long_listen = 0;
6316 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6317 wpa_s->p2p_in_provisioning)
6320 wpa_supplicant_cancel_sched_scan(wpa_s);
6322 return p2p_find(wpa_s->global->p2p, timeout, type,
6323 num_req_dev_types, req_dev_types, dev_id,
6324 search_delay, seek_cnt, seek_string, freq);
6328 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6329 struct wpa_scan_results *scan_res)
6331 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6333 if (wpa_s->p2p_scan_work) {
6334 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6335 wpa_s->p2p_scan_work = NULL;
6336 radio_work_done(work);
6339 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6343 * Indicate that results have been processed so that the P2P module can
6344 * continue pending tasks.
6346 p2p_scan_res_handled(wpa_s->global->p2p);
6350 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6352 wpas_p2p_clear_pending_action_tx(wpa_s);
6353 wpa_s->p2p_long_listen = 0;
6354 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6355 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6357 if (wpa_s->global->p2p)
6358 p2p_stop_find(wpa_s->global->p2p);
6360 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6361 wpa_printf(MSG_DEBUG,
6362 "P2P: Do not consider the scan results after stop_find");
6363 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6368 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6370 wpas_p2p_stop_find_oper(wpa_s);
6371 if (!wpa_s->global->pending_group_iface_for_p2ps)
6372 wpas_p2p_remove_pending_group_interface(wpa_s);
6376 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6378 struct wpa_supplicant *wpa_s = eloop_ctx;
6379 wpa_s->p2p_long_listen = 0;
6383 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6387 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6390 wpa_supplicant_cancel_sched_scan(wpa_s);
6391 wpas_p2p_clear_pending_action_tx(wpa_s);
6395 * This is a request for unlimited Listen state. However, at
6396 * least for now, this is mapped to a Listen state for one
6401 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6402 wpa_s->p2p_long_listen = 0;
6405 * Stop previous find/listen operation to avoid trying to request a new
6406 * remain-on-channel operation while the driver is still running the
6409 if (wpa_s->global->p2p)
6410 p2p_stop_find(wpa_s->global->p2p);
6412 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6413 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6414 wpa_s->p2p_long_listen = timeout * 1000;
6415 eloop_register_timeout(timeout, 0,
6416 wpas_p2p_long_listen_timeout,
6424 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6425 u8 *buf, size_t len, int p2p_group)
6427 struct wpabuf *p2p_ie;
6430 if (wpa_s->global->p2p_disabled)
6433 * Advertize mandatory cross connection capability even on
6434 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6436 if (wpa_s->conf->p2p_disabled && p2p_group)
6438 if (wpa_s->global->p2p == NULL)
6443 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6444 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6446 wpabuf_free(p2p_ie);
6452 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6453 const u8 *dst, const u8 *bssid,
6454 const u8 *ie, size_t ie_len,
6455 unsigned int rx_freq, int ssi_signal)
6457 if (wpa_s->global->p2p_disabled)
6459 if (wpa_s->global->p2p == NULL)
6462 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6463 ie, ie_len, rx_freq)) {
6464 case P2P_PREQ_NOT_P2P:
6465 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6468 case P2P_PREQ_MALFORMED:
6469 case P2P_PREQ_NOT_LISTEN:
6470 case P2P_PREQ_NOT_PROCESSED:
6471 default: /* make gcc happy */
6473 case P2P_PREQ_PROCESSED:
6479 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6480 const u8 *sa, const u8 *bssid,
6481 u8 category, const u8 *data, size_t len, int freq)
6483 if (wpa_s->global->p2p_disabled)
6485 if (wpa_s->global->p2p == NULL)
6488 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6493 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6495 if (wpa_s->global->p2p_disabled)
6497 if (wpa_s->global->p2p == NULL)
6500 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6504 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6506 p2p_group_deinit(wpa_s->p2p_group);
6507 wpa_s->p2p_group = NULL;
6509 wpa_s->ap_configured_cb = NULL;
6510 wpa_s->ap_configured_cb_ctx = NULL;
6511 wpa_s->ap_configured_cb_data = NULL;
6512 wpa_s->connect_without_scan = NULL;
6516 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6518 wpa_s->p2p_long_listen = 0;
6520 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6523 return p2p_reject(wpa_s->global->p2p, addr);
6527 /* Invite to reinvoke a persistent group */
6528 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6529 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6530 int ht40, int vht, int pref_freq)
6532 enum p2p_invite_role role;
6536 int no_pref_freq_given = pref_freq == 0;
6537 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6539 wpa_s->global->p2p_invite_group = NULL;
6541 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6543 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6545 wpa_s->p2p_persistent_go_freq = freq;
6546 wpa_s->p2p_go_ht40 = !!ht40;
6547 if (ssid->mode == WPAS_MODE_P2P_GO) {
6548 role = P2P_INVITE_ROLE_GO;
6549 if (peer_addr == NULL) {
6550 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6551 "address in invitation command");
6554 if (wpas_p2p_create_iface(wpa_s)) {
6555 if (wpas_p2p_add_group_interface(wpa_s,
6556 WPA_IF_P2P_GO) < 0) {
6557 wpa_printf(MSG_ERROR, "P2P: Failed to "
6558 "allocate a new interface for the "
6562 bssid = wpa_s->pending_interface_addr;
6564 bssid = wpa_s->own_addr;
6566 role = P2P_INVITE_ROLE_CLIENT;
6567 peer_addr = ssid->bssid;
6569 wpa_s->pending_invite_ssid_id = ssid->id;
6571 size = P2P_MAX_PREF_CHANNELS;
6572 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6573 role == P2P_INVITE_ROLE_GO,
6574 pref_freq_list, &size);
6577 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6579 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6582 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6583 no_pref_freq_given && pref_freq > 0 &&
6584 wpa_s->num_multichan_concurrent > 1 &&
6585 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6586 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6592 * Stop any find/listen operations before invitation and possibly
6593 * connection establishment.
6595 wpas_p2p_stop_find_oper(wpa_s);
6597 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6598 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6603 /* Invite to join an active group */
6604 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6605 const u8 *peer_addr, const u8 *go_dev_addr)
6607 struct wpa_global *global = wpa_s->global;
6608 enum p2p_invite_role role;
6610 struct wpa_ssid *ssid;
6612 int freq = 0, force_freq = 0, pref_freq = 0;
6614 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6616 wpa_s->p2p_persistent_go_freq = 0;
6617 wpa_s->p2p_go_ht40 = 0;
6618 wpa_s->p2p_go_vht = 0;
6620 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6621 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6624 if (wpa_s == NULL) {
6625 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6629 ssid = wpa_s->current_ssid;
6631 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6636 wpa_s->global->p2p_invite_group = wpa_s;
6637 persistent = ssid->p2p_persistent_group &&
6638 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6639 ssid->ssid, ssid->ssid_len);
6641 if (ssid->mode == WPAS_MODE_P2P_GO) {
6642 role = P2P_INVITE_ROLE_ACTIVE_GO;
6643 bssid = wpa_s->own_addr;
6644 if (go_dev_addr == NULL)
6645 go_dev_addr = wpa_s->global->p2p_dev_addr;
6646 freq = ssid->frequency;
6648 role = P2P_INVITE_ROLE_CLIENT;
6649 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6650 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6651 "invite to current group");
6654 bssid = wpa_s->bssid;
6655 if (go_dev_addr == NULL &&
6656 !is_zero_ether_addr(wpa_s->go_dev_addr))
6657 go_dev_addr = wpa_s->go_dev_addr;
6658 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6659 (int) wpa_s->assoc_freq;
6661 wpa_s->parent->pending_invite_ssid_id = -1;
6663 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6666 size = P2P_MAX_PREF_CHANNELS;
6667 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6668 role == P2P_INVITE_ROLE_ACTIVE_GO,
6669 pref_freq_list, &size);
6672 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6674 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6675 ssid->ssid, ssid->ssid_len, force_freq,
6676 go_dev_addr, persistent, pref_freq, -1);
6680 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6682 struct wpa_ssid *ssid = wpa_s->current_ssid;
6683 u8 go_dev_addr[ETH_ALEN];
6684 int network_id = -1;
6690 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6691 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6692 wpa_s->parent, NULL);
6695 if (!wpa_s->show_group_started || !ssid)
6698 wpa_s->show_group_started = 0;
6700 os_memset(go_dev_addr, 0, ETH_ALEN);
6701 if (ssid->bssid_set)
6702 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6703 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6705 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6707 if (wpa_s->global->p2p_group_formation == wpa_s)
6708 wpa_s->global->p2p_group_formation = NULL;
6710 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6711 (int) wpa_s->assoc_freq;
6714 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6717 res = os_snprintf(ip_addr, sizeof(ip_addr),
6718 " ip_addr=%u.%u.%u.%u "
6719 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6720 ip[0], ip[1], ip[2], ip[3],
6721 ip[4], ip[5], ip[6], ip[7],
6722 ip[8], ip[9], ip[10], ip[11]);
6723 if (os_snprintf_error(sizeof(ip_addr), res))
6727 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6728 ssid->passphrase == NULL && ssid->psk_set ?
6730 ssid->passphrase, go_dev_addr, persistent,
6734 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6737 network_id = ssid->id;
6738 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6742 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6743 u32 interval1, u32 duration2, u32 interval2)
6747 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6750 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6751 wpa_s->current_ssid == NULL ||
6752 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6755 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6756 wpa_s->own_addr, wpa_s->assoc_freq,
6757 duration1, interval1, duration2, interval2);
6759 wpa_s->waiting_presence_resp = 1;
6765 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6766 unsigned int interval)
6768 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6771 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6775 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6777 if (wpa_s->current_ssid == NULL) {
6779 * current_ssid can be cleared when P2P client interface gets
6780 * disconnected, so assume this interface was used as P2P
6785 return wpa_s->current_ssid->p2p_group &&
6786 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6790 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6792 struct wpa_supplicant *wpa_s = eloop_ctx;
6794 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6795 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6800 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6802 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6806 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6810 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6811 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6813 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6816 timeout = wpa_s->conf->p2p_group_idle;
6817 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6818 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6819 timeout = P2P_MAX_CLIENT_IDLE;
6825 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6826 timeout = 0; /* special client mode no-timeout */
6831 if (wpa_s->p2p_in_provisioning) {
6833 * Use the normal group formation timeout during the
6834 * provisioning phase to avoid terminating this process too
6835 * early due to group idle timeout.
6837 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6838 "during provisioning");
6842 if (wpa_s->show_group_started) {
6844 * Use the normal group formation timeout between the end of
6845 * the provisioning phase and completion of 4-way handshake to
6846 * avoid terminating this process too early due to group idle
6849 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6850 "while waiting for initial 4-way handshake to "
6855 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6857 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6862 /* Returns 1 if the interface was removed */
6863 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6864 u16 reason_code, const u8 *ie, size_t ie_len,
6865 int locally_generated)
6867 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6870 if (!locally_generated)
6871 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6874 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6875 wpa_s->current_ssid &&
6876 wpa_s->current_ssid->p2p_group &&
6877 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6878 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6879 "session is ending");
6880 if (wpas_p2p_group_delete(wpa_s,
6881 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6890 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6891 u16 reason_code, const u8 *ie, size_t ie_len,
6892 int locally_generated)
6894 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6897 if (!locally_generated)
6898 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6903 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6905 struct p2p_data *p2p = wpa_s->global->p2p;
6910 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6913 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6914 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6916 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6917 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6920 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6921 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6923 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6924 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6926 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6927 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6928 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6929 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6930 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6933 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6934 p2p_set_sec_dev_types(p2p,
6935 (void *) wpa_s->conf->sec_device_type,
6936 wpa_s->conf->num_sec_device_types);
6938 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6940 p2p_remove_wps_vendor_extensions(p2p);
6941 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6942 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6944 p2p_add_wps_vendor_extension(
6945 p2p, wpa_s->conf->wps_vendor_ext[i]);
6949 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6950 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6952 country[0] = wpa_s->conf->country[0];
6953 country[1] = wpa_s->conf->country[1];
6955 p2p_set_country(p2p, country);
6958 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6959 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6960 wpa_s->conf->p2p_ssid_postfix ?
6961 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6965 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6966 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6968 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6969 u8 reg_class, channel;
6974 if (wpa_s->conf->p2p_listen_reg_class &&
6975 wpa_s->conf->p2p_listen_channel) {
6976 reg_class = wpa_s->conf->p2p_listen_reg_class;
6977 channel = wpa_s->conf->p2p_listen_channel;
6982 * Pick one of the social channels randomly as the
6985 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6988 channel = 1 + (r % 3) * 5;
6991 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6994 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6997 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6998 u8 op_reg_class, op_channel, cfg_op_channel;
7001 if (wpa_s->conf->p2p_oper_reg_class &&
7002 wpa_s->conf->p2p_oper_channel) {
7003 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7004 op_channel = wpa_s->conf->p2p_oper_channel;
7009 * Use random operation channel from (1, 6, 11)
7010 *if no other preference is indicated.
7012 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7015 op_channel = 1 + (r % 3) * 5;
7018 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7021 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7025 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7026 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7027 wpa_s->conf->p2p_pref_chan) < 0) {
7028 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7032 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7033 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7038 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7039 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7043 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7046 if (!wpa_s->ap_iface)
7048 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7053 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7055 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7058 wpa_s->global->cross_connection = enabled;
7059 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7062 struct wpa_supplicant *iface;
7064 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7066 if (iface->cross_connect_enabled == 0)
7069 iface->cross_connect_enabled = 0;
7070 iface->cross_connect_in_use = 0;
7071 wpa_msg_global(iface->parent, MSG_INFO,
7072 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7074 iface->cross_connect_uplink);
7082 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7084 struct wpa_supplicant *iface;
7086 if (!uplink->global->cross_connection)
7089 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7090 if (!iface->cross_connect_enabled)
7092 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7095 if (iface->ap_iface == NULL)
7097 if (iface->cross_connect_in_use)
7100 iface->cross_connect_in_use = 1;
7101 wpa_msg_global(iface->parent, MSG_INFO,
7102 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7103 iface->ifname, iface->cross_connect_uplink);
7108 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7110 struct wpa_supplicant *iface;
7112 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7113 if (!iface->cross_connect_enabled)
7115 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7118 if (!iface->cross_connect_in_use)
7121 wpa_msg_global(iface->parent, MSG_INFO,
7122 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7123 iface->ifname, iface->cross_connect_uplink);
7124 iface->cross_connect_in_use = 0;
7129 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7131 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7132 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7133 wpa_s->cross_connect_disallowed)
7134 wpas_p2p_disable_cross_connect(wpa_s);
7136 wpas_p2p_enable_cross_connect(wpa_s);
7137 if (!wpa_s->ap_iface &&
7138 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7139 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7143 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7145 wpas_p2p_disable_cross_connect(wpa_s);
7146 if (!wpa_s->ap_iface &&
7147 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7149 wpas_p2p_set_group_idle_timeout(wpa_s);
7153 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7155 struct wpa_supplicant *iface;
7157 if (!wpa_s->global->cross_connection)
7160 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7163 if (iface->drv_flags &
7164 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7166 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7167 iface != wpa_s->parent)
7170 wpa_s->cross_connect_enabled = 1;
7171 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7172 sizeof(wpa_s->cross_connect_uplink));
7173 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7174 "%s to %s whenever uplink is available",
7175 wpa_s->ifname, wpa_s->cross_connect_uplink);
7177 if (iface->ap_iface || iface->current_ssid == NULL ||
7178 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7179 iface->cross_connect_disallowed ||
7180 iface->wpa_state != WPA_COMPLETED)
7183 wpa_s->cross_connect_in_use = 1;
7184 wpa_msg_global(wpa_s->parent, MSG_INFO,
7185 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7186 wpa_s->ifname, wpa_s->cross_connect_uplink);
7192 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7194 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7195 !wpa_s->p2p_in_provisioning)
7196 return 0; /* not P2P client operation */
7198 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7200 if (wpa_s != wpa_s->parent)
7201 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
7202 wpas_p2p_group_formation_failed(wpa_s, 0);
7207 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7209 struct wpa_supplicant *wpa_s = eloop_ctx;
7210 wpas_p2p_notif_pbc_overlap(wpa_s);
7214 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7215 enum wpas_p2p_channel_update_trig trig)
7217 struct p2p_channels chan, cli_chan;
7218 struct wpa_used_freq_data *freqs = NULL;
7219 unsigned int num = wpa_s->num_multichan_concurrent;
7221 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7224 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7228 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7230 os_memset(&chan, 0, sizeof(chan));
7231 os_memset(&cli_chan, 0, sizeof(cli_chan));
7232 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7233 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7238 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7240 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7243 * The used frequencies map changed, so it is possible that a GO is
7244 * using a channel that is no longer valid for P2P use. It is also
7245 * possible that due to policy consideration, it would be preferable to
7246 * move it to a frequency already used by other station interfaces.
7248 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7254 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7255 struct wpa_scan_results *scan_res)
7257 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7261 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7263 struct wpa_global *global = wpa_s->global;
7267 if (global->p2p == NULL)
7270 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7272 if (wpa_s->pending_interface_name[0] &&
7273 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7276 peer = p2p_get_go_neg_peer(global->p2p);
7278 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7279 MACSTR, MAC2STR(peer));
7280 p2p_unauthorize(global->p2p, peer);
7284 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7285 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7286 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7290 if (wpa_s->pending_pd_before_join) {
7291 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7292 wpa_s->pending_pd_before_join = 0;
7296 wpas_p2p_stop_find(wpa_s);
7298 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7299 if (wpa_s == global->p2p_group_formation &&
7300 (wpa_s->p2p_in_provisioning ||
7301 wpa_s->parent->pending_interface_type ==
7302 WPA_IF_P2P_CLIENT)) {
7303 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7304 "formation found - cancelling",
7307 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7308 wpa_s->parent, NULL);
7309 if (wpa_s->p2p_in_provisioning) {
7310 wpas_group_formation_completed(wpa_s, 0, 0);
7313 wpas_p2p_group_delete(wpa_s,
7314 P2P_GROUP_REMOVAL_REQUESTED);
7316 } else if (wpa_s->p2p_in_invitation) {
7317 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7320 wpas_p2p_group_formation_failed(wpa_s, 0);
7325 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7333 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7335 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7338 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7339 "being available anymore");
7340 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7344 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7345 int freq_24, int freq_5, int freq_overall)
7347 struct p2p_data *p2p = wpa_s->global->p2p;
7350 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7354 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7357 struct p2p_data *p2p = wpa_s->global->p2p;
7362 if (hwaddr_aton(addr, peer))
7365 return p2p_unauthorize(p2p, peer);
7370 * wpas_p2p_disconnect - Disconnect from a P2P Group
7371 * @wpa_s: Pointer to wpa_supplicant data
7372 * Returns: 0 on success, -1 on failure
7374 * This can be used to disconnect from a group in which the local end is a P2P
7375 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7376 * virtual network interface was created for this group, that interface will be
7377 * removed. Otherwise, only the configured P2P group network will be removed
7378 * from the interface.
7380 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7386 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7391 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7395 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7398 ret = p2p_in_progress(wpa_s->global->p2p);
7401 * Check whether there is an ongoing WPS provisioning step (or
7402 * other parts of group formation) on another interface since
7403 * p2p_in_progress() does not report this to avoid issues for
7404 * scans during such provisioning step.
7406 if (wpa_s->global->p2p_group_formation &&
7407 wpa_s->global->p2p_group_formation != wpa_s) {
7408 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7409 "in group formation",
7410 wpa_s->global->p2p_group_formation->ifname);
7415 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7416 struct os_reltime now;
7417 os_get_reltime(&now);
7418 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7419 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7420 /* Wait for the first client has expired */
7421 wpa_s->global->p2p_go_wait_client.sec = 0;
7423 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7432 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7433 struct wpa_ssid *ssid)
7435 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7436 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7437 wpa_s->parent, NULL) > 0) {
7439 * Remove the network by scheduling the group formation
7440 * timeout to happen immediately. The teardown code
7441 * needs to be scheduled to run asynch later so that we
7442 * don't delete data from under ourselves unexpectedly.
7443 * Calling wpas_p2p_group_formation_timeout directly
7444 * causes a series of crashes in WPS failure scenarios.
7446 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7447 "P2P group network getting removed");
7448 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7449 wpa_s->parent, NULL);
7454 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7455 const u8 *addr, const u8 *ssid,
7461 for (s = wpa_s->conf->ssid; s; s = s->next) {
7462 if (s->disabled != 2)
7465 (ssid_len != s->ssid_len ||
7466 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7469 if (s->mode == WPAS_MODE_P2P_GO)
7473 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7474 return s; /* peer is GO in the persistent group */
7475 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7477 for (i = 0; i < s->num_p2p_clients; i++) {
7478 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7479 addr, ETH_ALEN) == 0)
7480 return s; /* peer is P2P client in persistent
7489 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7492 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7493 wpa_s->parent, NULL) > 0) {
7495 * This can happen if WPS provisioning step is not terminated
7496 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7497 * peer was able to connect, there is no need to time out group
7498 * formation after this, though. In addition, this is used with
7499 * the initial connection wait on the GO as a separate formation
7500 * timeout and as such, expected to be hit after the initial WPS
7501 * provisioning step.
7503 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7505 if (!wpa_s->p2p_go_group_formation_completed &&
7506 !wpa_s->group_formation_reported) {
7508 * GO has not yet notified group formation success since
7509 * the WPS step was not completed cleanly. Do that
7510 * notification now since the P2P Client was able to
7511 * connect and as such, must have received the
7512 * credential from the WPS step.
7514 if (wpa_s->global->p2p)
7515 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7516 wpas_group_formation_completed(wpa_s, 1, 0);
7519 if (!wpa_s->p2p_go_group_formation_completed) {
7520 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7521 wpa_s->p2p_go_group_formation_completed = 1;
7522 wpa_s->global->p2p_group_formation = NULL;
7523 wpa_s->p2p_in_provisioning = 0;
7524 wpa_s->p2p_in_invitation = 0;
7526 wpa_s->global->p2p_go_wait_client.sec = 0;
7529 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7533 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7536 struct wpa_supplicant *group = wpa_s;
7539 if (wpa_s->global->p2p_group_formation)
7540 group = wpa_s->global->p2p_group_formation;
7541 wpa_s = wpa_s->global->p2p_init_wpa_s;
7542 offchannel_send_action_done(wpa_s);
7544 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7545 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7546 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7547 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7548 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7549 wpa_s->p2p_persistent_id,
7550 wpa_s->p2p_pd_before_go_neg,
7557 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7561 if (!wpa_s->p2p_fallback_to_go_neg ||
7562 wpa_s->p2p_in_provisioning <= 5)
7565 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7566 return 0; /* peer operating as a GO */
7568 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7569 "fallback to GO Negotiation");
7570 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7571 "reason=GO-not-found");
7572 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7574 return res == 1 ? 2 : 1;
7578 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7580 struct wpa_supplicant *ifs;
7582 if (wpa_s->wpa_state > WPA_SCANNING) {
7583 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7584 "concurrent operation",
7585 wpa_s->conf->p2p_search_delay);
7586 return wpa_s->conf->p2p_search_delay;
7589 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7591 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7592 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7593 "delay due to concurrent operation on "
7595 wpa_s->conf->p2p_search_delay,
7597 return wpa_s->conf->p2p_search_delay;
7605 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7606 struct wpa_ssid *s, const u8 *addr,
7609 struct psk_list_entry *psk, *tmp;
7612 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7614 if ((iface_addr && !psk->p2p &&
7615 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7616 (!iface_addr && psk->p2p &&
7617 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7618 wpa_dbg(wpa_s, MSG_DEBUG,
7619 "P2P: Remove persistent group PSK list entry for "
7621 MAC2STR(psk->addr), psk->p2p);
7622 dl_list_del(&psk->list);
7632 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7633 const u8 *p2p_dev_addr,
7634 const u8 *psk, size_t psk_len)
7636 struct wpa_ssid *ssid = wpa_s->current_ssid;
7637 struct wpa_ssid *persistent;
7638 struct psk_list_entry *p, *last;
7640 if (psk_len != sizeof(p->psk))
7644 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7645 " p2p_dev_addr=" MACSTR,
7646 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7647 if (is_zero_ether_addr(p2p_dev_addr))
7648 p2p_dev_addr = NULL;
7650 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7654 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7655 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7656 /* To be added to persistent group once created */
7657 if (wpa_s->global->add_psk == NULL) {
7658 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7659 if (wpa_s->global->add_psk == NULL)
7662 p = wpa_s->global->add_psk;
7665 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7668 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7670 os_memcpy(p->psk, psk, psk_len);
7674 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7675 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7679 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7682 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7686 p = os_zalloc(sizeof(*p));
7691 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7694 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7696 os_memcpy(p->psk, psk, psk_len);
7698 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7699 (last = dl_list_last(&persistent->psk_list,
7700 struct psk_list_entry, list))) {
7701 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7702 MACSTR " (p2p=%u) to make room for a new one",
7703 MAC2STR(last->addr), last->p2p);
7704 dl_list_del(&last->list);
7708 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7709 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7710 p2p_dev_addr == NULL);
7712 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7713 MACSTR, MAC2STR(p2p_dev_addr));
7715 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7718 dl_list_add(&persistent->psk_list, &p->list);
7720 if (wpa_s->parent->conf->update_config &&
7721 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7722 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7726 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7727 struct wpa_ssid *s, const u8 *addr,
7732 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7733 if (res > 0 && wpa_s->conf->update_config &&
7734 wpa_config_write(wpa_s->confname, wpa_s->conf))
7735 wpa_dbg(wpa_s, MSG_DEBUG,
7736 "P2P: Failed to update configuration");
7740 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7741 const u8 *peer, int iface_addr)
7743 struct hostapd_data *hapd;
7744 struct hostapd_wpa_psk *psk, *prev, *rem;
7745 struct sta_info *sta;
7747 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7748 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7751 /* Remove per-station PSK entry */
7752 hapd = wpa_s->ap_iface->bss[0];
7754 psk = hapd->conf->ssid.wpa_psk;
7756 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7758 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7759 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7760 MACSTR " iface_addr=%d",
7761 MAC2STR(peer), iface_addr);
7763 prev->next = psk->next;
7765 hapd->conf->ssid.wpa_psk = psk->next;
7775 /* Disconnect from group */
7777 sta = ap_get_sta(hapd, peer);
7779 sta = ap_get_sta_p2p(hapd, peer);
7781 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7782 " (iface_addr=%d) from group",
7783 MAC2STR(peer), iface_addr);
7784 hostapd_drv_sta_deauth(hapd, sta->addr,
7785 WLAN_REASON_DEAUTH_LEAVING);
7786 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7791 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7795 struct wpa_supplicant *w;
7796 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
7798 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7800 /* Remove from any persistent group */
7801 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
7802 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7805 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7806 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
7809 /* Remove from any operating group */
7810 for (w = wpa_s->global->ifaces; w; w = w->next)
7811 wpas_p2p_remove_client_go(w, peer, iface_addr);
7815 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7817 struct wpa_supplicant *wpa_s = eloop_ctx;
7818 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7822 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7824 struct wpa_supplicant *wpa_s = eloop_ctx;
7826 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7827 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7831 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7832 struct wpa_ssid *ssid)
7834 struct wpa_supplicant *iface;
7836 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7837 if (!iface->current_ssid ||
7838 iface->current_ssid->frequency == freq ||
7839 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7840 !iface->current_ssid->p2p_group))
7843 /* Remove the connection with least priority */
7844 if (!wpas_is_p2p_prioritized(iface)) {
7845 /* STA connection has priority over existing
7846 * P2P connection, so remove the interface. */
7847 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7848 eloop_register_timeout(0, 0,
7849 wpas_p2p_group_freq_conflict,
7851 /* If connection in progress is P2P connection, do not
7852 * proceed for the connection. */
7858 /* P2P connection has priority, disable the STA network
7860 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7862 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7863 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7864 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7866 /* If P2P connection is in progress, continue
7879 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7881 struct wpa_ssid *ssid = wpa_s->current_ssid;
7883 if (ssid == NULL || !ssid->p2p_group)
7886 if (wpa_s->p2p_last_4way_hs_fail &&
7887 wpa_s->p2p_last_4way_hs_fail == ssid) {
7888 u8 go_dev_addr[ETH_ALEN];
7889 struct wpa_ssid *persistent;
7891 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7893 ssid->ssid_len) <= 0) {
7894 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7898 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7899 MACSTR, MAC2STR(go_dev_addr));
7900 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7903 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7904 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7907 wpa_msg_global(wpa_s->parent, MSG_INFO,
7908 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7911 wpa_s->p2p_last_4way_hs_fail = NULL;
7913 * Remove the group from a timeout to avoid issues with caller
7914 * continuing to use the interface if this is on a P2P group
7917 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7922 wpa_s->p2p_last_4way_hs_fail = ssid;
7927 #ifdef CONFIG_WPS_NFC
7929 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7937 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7941 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7942 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7949 wpabuf_put_be16(ret, wsc_len);
7951 wpabuf_put_buf(ret, wsc);
7952 wpabuf_put_be16(ret, wpabuf_len(p2p));
7953 wpabuf_put_buf(ret, p2p);
7957 wpa_hexdump_buf(MSG_DEBUG,
7958 "P2P: Generated NFC connection handover message", ret);
7962 tmp = ndef_build_p2p(ret);
7965 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7975 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7976 struct wpa_ssid **ssid, u8 *go_dev_addr)
7978 struct wpa_supplicant *iface;
7981 os_memset(go_dev_addr, 0, ETH_ALEN);
7984 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7985 if (iface->wpa_state < WPA_ASSOCIATING ||
7986 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7987 !iface->current_ssid->p2p_group ||
7988 iface->current_ssid->mode != WPAS_MODE_INFRA)
7991 *ssid = iface->current_ssid;
7993 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7994 return iface->assoc_freq;
8000 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8003 struct wpabuf *wsc, *p2p;
8004 struct wpa_ssid *ssid;
8005 u8 go_dev_addr[ETH_ALEN];
8006 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8008 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8009 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8013 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8014 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8015 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8016 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8020 if (cli_freq == 0) {
8021 wsc = wps_build_nfc_handover_req_p2p(
8022 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8025 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8026 go_dev_addr, ssid ? ssid->ssid : NULL,
8027 ssid ? ssid->ssid_len : 0);
8029 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8033 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8036 struct wpabuf *wsc, *p2p;
8037 struct wpa_ssid *ssid;
8038 u8 go_dev_addr[ETH_ALEN];
8039 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8041 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8044 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8045 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8046 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8049 if (cli_freq == 0) {
8050 wsc = wps_build_nfc_handover_sel_p2p(
8052 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8053 DEV_PW_NFC_CONNECTION_HANDOVER,
8054 wpa_s->conf->wps_nfc_dh_pubkey,
8055 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8058 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8059 go_dev_addr, ssid ? ssid->ssid : NULL,
8060 ssid ? ssid->ssid_len : 0);
8062 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8066 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8067 struct p2p_nfc_params *params)
8069 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8070 "connection handover (freq=%d)",
8073 if (params->go_freq && params->go_ssid_len) {
8074 wpa_s->p2p_wps_method = WPS_NFC;
8075 wpa_s->pending_join_wps_method = WPS_NFC;
8076 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8077 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8079 return wpas_p2p_join_start(wpa_s, params->go_freq,
8081 params->go_ssid_len);
8084 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8085 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8086 params->go_freq, -1, 0, 1, 1);
8090 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8091 struct p2p_nfc_params *params, int tag)
8093 int res, persistent;
8094 struct wpa_ssid *ssid;
8096 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8097 "connection handover");
8098 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8099 ssid = wpa_s->current_ssid;
8102 if (ssid->mode != WPAS_MODE_P2P_GO)
8104 if (wpa_s->ap_iface == NULL)
8108 if (wpa_s == NULL) {
8109 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8113 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8114 DEV_PW_NFC_CONNECTION_HANDOVER &&
8115 !wpa_s->parent->p2p_oob_dev_pw) {
8116 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8119 res = wpas_ap_wps_add_nfc_pw(
8120 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8121 wpa_s->parent->p2p_oob_dev_pw,
8122 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8123 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8128 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8132 if (!params->peer ||
8133 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8136 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8137 " to join", MAC2STR(params->peer->p2p_device_addr));
8139 wpa_s->global->p2p_invite_group = wpa_s;
8140 persistent = ssid->p2p_persistent_group &&
8141 wpas_p2p_get_persistent(wpa_s->parent,
8142 params->peer->p2p_device_addr,
8143 ssid->ssid, ssid->ssid_len);
8144 wpa_s->parent->pending_invite_ssid_id = -1;
8146 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8147 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8148 ssid->ssid, ssid->ssid_len, ssid->frequency,
8149 wpa_s->global->p2p_dev_addr, persistent, 0,
8150 wpa_s->parent->p2p_oob_dev_pw_id);
8154 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8155 struct p2p_nfc_params *params,
8158 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8159 "connection handover");
8160 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8161 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8162 forced_freq, -1, 0, 1, 1);
8166 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8167 struct p2p_nfc_params *params,
8172 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8173 "connection handover");
8174 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8175 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8176 forced_freq, -1, 0, 1, 1);
8180 res = wpas_p2p_listen(wpa_s, 60);
8182 p2p_unauthorize(wpa_s->global->p2p,
8183 params->peer->p2p_device_addr);
8190 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8191 const struct wpabuf *data,
8192 int sel, int tag, int forced_freq)
8194 const u8 *pos, *end;
8196 struct p2p_nfc_params params;
8199 os_memset(¶ms, 0, sizeof(params));
8202 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8204 pos = wpabuf_head(data);
8205 end = pos + wpabuf_len(data);
8207 if (end - pos < 2) {
8208 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8212 len = WPA_GET_BE16(pos);
8214 if (len > end - pos) {
8215 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8219 params.wsc_attr = pos;
8220 params.wsc_len = len;
8223 if (end - pos < 2) {
8224 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8228 len = WPA_GET_BE16(pos);
8230 if (len > end - pos) {
8231 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8235 params.p2p_attr = pos;
8236 params.p2p_len = len;
8239 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8240 params.wsc_attr, params.wsc_len);
8241 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8242 params.p2p_attr, params.p2p_len);
8244 wpa_hexdump(MSG_DEBUG,
8245 "P2P: Ignored extra data after P2P attributes",
8249 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8253 if (params.next_step == NO_ACTION)
8256 if (params.next_step == BOTH_GO) {
8257 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8258 MAC2STR(params.peer->p2p_device_addr));
8262 if (params.next_step == PEER_CLIENT) {
8263 if (!is_zero_ether_addr(params.go_dev_addr)) {
8264 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8265 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8267 MAC2STR(params.peer->p2p_device_addr),
8269 MAC2STR(params.go_dev_addr),
8270 wpa_ssid_txt(params.go_ssid,
8271 params.go_ssid_len));
8273 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8274 "peer=" MACSTR " freq=%d",
8275 MAC2STR(params.peer->p2p_device_addr),
8281 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8282 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8283 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8287 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8288 wpa_s->p2p_oob_dev_pw = NULL;
8290 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8291 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8296 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8297 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8298 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8299 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8300 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8301 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8302 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8306 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8307 "peer OOB Device Password Id %u", id);
8310 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8311 "Device Password Id %u", id);
8312 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8313 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8314 params.oob_dev_pw_len -
8315 WPS_OOB_PUBKEY_HASH_LEN - 2);
8316 wpa_s->p2p_oob_dev_pw_id = id;
8317 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8318 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8319 params.oob_dev_pw_len -
8320 WPS_OOB_PUBKEY_HASH_LEN - 2);
8321 if (wpa_s->p2p_oob_dev_pw == NULL)
8324 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8325 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8326 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8329 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8330 "without Device Password");
8331 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8334 switch (params.next_step) {
8338 /* already covered above */
8341 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8343 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8345 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8347 /* TODO: use own OOB Dev Pw */
8348 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8355 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8356 const struct wpabuf *data, int forced_freq)
8358 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8361 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8365 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8366 const struct wpabuf *req,
8367 const struct wpabuf *sel, int forced_freq)
8372 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8375 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8377 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8378 wpabuf_head(req), wpabuf_len(req));
8379 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8380 wpabuf_head(sel), wpabuf_len(sel));
8382 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8383 tmp = ndef_parse_p2p(init ? sel : req);
8385 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8389 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8397 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8400 int go_intent = wpa_s->conf->p2p_go_intent;
8401 struct wpa_supplicant *iface;
8403 if (wpa_s->global->p2p == NULL)
8407 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8408 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8410 if (!iface->ap_iface)
8412 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8414 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8416 if (wpa_s->p2p_nfc_tag_enabled)
8417 wpas_p2p_remove_pending_group_interface(wpa_s);
8418 wpa_s->p2p_nfc_tag_enabled = 0;
8422 if (wpa_s->global->p2p_disabled)
8425 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8426 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8427 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8428 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8429 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8430 "to allow static handover cases");
8434 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8436 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8437 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8438 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8439 if (wpa_s->p2p_oob_dev_pw == NULL)
8441 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8443 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8444 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8446 * P2P Group Interface present and the command came on group
8447 * interface, so enable the token for the current interface.
8449 wpa_s->create_p2p_iface = 0;
8451 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8454 if (wpa_s->create_p2p_iface) {
8455 enum wpa_driver_if_type iftype;
8456 /* Prepare to add a new interface for the group */
8457 iftype = WPA_IF_P2P_GROUP;
8458 if (go_intent == 15)
8459 iftype = WPA_IF_P2P_GO;
8460 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8461 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8462 "interface for the group");
8466 if_addr = wpa_s->pending_interface_addr;
8468 if_addr = wpa_s->own_addr;
8470 wpa_s->p2p_nfc_tag_enabled = enabled;
8472 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8473 struct hostapd_data *hapd;
8474 if (iface->ap_iface == NULL)
8476 hapd = iface->ap_iface->bss[0];
8477 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8478 hapd->conf->wps_nfc_dh_pubkey =
8479 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8480 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8481 hapd->conf->wps_nfc_dh_privkey =
8482 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8483 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8484 hapd->conf->wps_nfc_dev_pw =
8485 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8486 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8488 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8489 wpa_dbg(iface, MSG_DEBUG,
8490 "P2P: Failed to enable NFC Tag for GO");
8493 p2p_set_authorized_oob_dev_pw_id(
8494 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8500 #endif /* CONFIG_WPS_NFC */
8503 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8504 struct wpa_used_freq_data *freqs,
8507 u8 curr_chan, cand, chan;
8511 * If possible, optimize the Listen channel to be a channel that is
8512 * already used by one of the other interfaces.
8514 if (!wpa_s->conf->p2p_optimize_listen_chan)
8517 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8520 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8521 for (i = 0, cand = 0; i < num; i++) {
8522 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8523 if (curr_chan == chan) {
8528 if (chan == 1 || chan == 6 || chan == 11)
8533 wpa_dbg(wpa_s, MSG_DEBUG,
8534 "P2P: Update Listen channel to %u based on operating channel",
8536 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8541 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8543 struct hostapd_config *conf;
8544 struct p2p_go_neg_results params;
8545 struct csa_settings csa_settings;
8546 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8547 int old_freq = current_ssid->frequency;
8550 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8551 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8556 * TODO: This function may not always work correctly. For example,
8557 * when we have a running GO and a BSS on a DFS channel.
8559 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, NULL)) {
8560 wpa_dbg(wpa_s, MSG_DEBUG,
8561 "P2P CSA: Failed to select new frequency for GO");
8565 if (current_ssid->frequency == params.freq) {
8566 wpa_dbg(wpa_s, MSG_DEBUG,
8567 "P2P CSA: Selected same frequency - not moving GO");
8571 conf = hostapd_config_defaults();
8573 wpa_dbg(wpa_s, MSG_DEBUG,
8574 "P2P CSA: Failed to allocate default config");
8578 current_ssid->frequency = params.freq;
8579 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8580 wpa_dbg(wpa_s, MSG_DEBUG,
8581 "P2P CSA: Failed to create new GO config");
8586 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8587 wpa_dbg(wpa_s, MSG_DEBUG,
8588 "P2P CSA: CSA to a different band is not supported");
8593 os_memset(&csa_settings, 0, sizeof(csa_settings));
8594 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8595 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8596 csa_settings.freq_params.freq = params.freq;
8597 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8598 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8599 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8601 if (conf->ieee80211ac) {
8602 int freq1 = 0, freq2 = 0;
8605 if (ieee80211_freq_to_channel_ext(params.freq,
8606 conf->secondary_channel,
8607 conf->vht_oper_chwidth,
8609 NUM_HOSTAPD_MODES) {
8610 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8615 if (conf->vht_oper_centr_freq_seg0_idx)
8616 freq1 = ieee80211_chan_to_freq(
8618 conf->vht_oper_centr_freq_seg0_idx);
8620 if (conf->vht_oper_centr_freq_seg1_idx)
8621 freq2 = ieee80211_chan_to_freq(
8623 conf->vht_oper_centr_freq_seg1_idx);
8625 if (freq1 < 0 || freq2 < 0) {
8626 wpa_dbg(wpa_s, MSG_DEBUG,
8627 "P2P CSA: Selected invalid VHT center freqs");
8632 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8633 csa_settings.freq_params.center_freq1 = freq1;
8634 csa_settings.freq_params.center_freq2 = freq2;
8636 switch (conf->vht_oper_chwidth) {
8637 case VHT_CHANWIDTH_80MHZ:
8638 case VHT_CHANWIDTH_80P80MHZ:
8639 csa_settings.freq_params.bandwidth = 80;
8641 case VHT_CHANWIDTH_160MHZ:
8642 csa_settings.freq_params.bandwidth = 160;
8647 ret = ap_switch_channel(wpa_s, &csa_settings);
8649 current_ssid->frequency = old_freq;
8650 hostapd_config_free(conf);
8655 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8657 struct p2p_go_neg_results params;
8658 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8660 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8662 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8663 current_ssid->frequency);
8665 /* Stop the AP functionality */
8666 /* TODO: Should do this in a way that does not indicated to possible
8667 * P2P Clients in the group that the group is terminated. */
8668 wpa_supplicant_ap_deinit(wpa_s);
8670 /* Reselect the GO frequency */
8671 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, NULL)) {
8672 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8673 wpas_p2p_group_delete(wpa_s,
8674 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8677 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8681 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8682 wpa_printf(MSG_DEBUG,
8683 "P2P: Selected freq (%u MHz) is not valid for P2P",
8685 wpas_p2p_group_delete(wpa_s,
8686 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8690 /* Update the frequency */
8691 current_ssid->frequency = params.freq;
8692 wpa_s->connect_without_scan = current_ssid;
8693 wpa_s->reassociate = 1;
8694 wpa_s->disconnected = 0;
8695 wpa_supplicant_req_scan(wpa_s, 0, 0);
8699 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8701 struct wpa_supplicant *wpa_s = eloop_ctx;
8703 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8706 wpas_p2p_go_update_common_freqs(wpa_s);
8708 /* Do not move GO in the middle of a CSA */
8709 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8710 wpa_printf(MSG_DEBUG,
8711 "P2P: CSA is in progress - not moving GO");
8716 * First, try a channel switch flow. If it is not supported or fails,
8717 * take down the GO and bring it up again.
8719 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8720 wpas_p2p_move_go_no_csa(wpa_s);
8724 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8726 struct wpa_supplicant *wpa_s = eloop_ctx;
8727 struct wpa_used_freq_data *freqs = NULL;
8728 unsigned int num = wpa_s->num_multichan_concurrent;
8730 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8734 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8736 /* Previous attempt to move a GO was not possible -- try again. */
8737 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8738 WPAS_P2P_CHANNEL_UPDATE_ANY);
8745 * Consider moving a GO from its currently used frequency:
8746 * 1. It is possible that due to regulatory consideration the frequency
8747 * can no longer be used and there is a need to evacuate the GO.
8748 * 2. It is possible that due to MCC considerations, it would be preferable
8749 * to move the GO to a channel that is currently used by some other
8750 * station interface.
8752 * In case a frequency that became invalid is once again valid, cancel a
8753 * previously initiated GO frequency change.
8755 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8756 struct wpa_used_freq_data *freqs,
8759 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8760 unsigned int timeout;
8763 wpas_p2p_go_update_common_freqs(wpa_s);
8765 freq = wpa_s->current_ssid->frequency;
8766 for (i = 0, invalid_freq = 0; i < num; i++) {
8767 if (freqs[i].freq == freq) {
8768 flags = freqs[i].flags;
8770 /* The channel is invalid, must change it */
8771 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8772 wpa_dbg(wpa_s, MSG_DEBUG,
8773 "P2P: Freq=%d MHz no longer valid for GO",
8777 } else if (freqs[i].flags == 0) {
8778 /* Freq is not used by any other station interface */
8780 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8782 /* Freq is not valid for P2P use cases */
8784 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8785 P2P_GO_FREQ_MOVE_SCM) {
8787 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8788 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8789 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8791 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
8792 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
8793 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8794 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
8796 } else if ((wpa_s->drv_flags &
8797 WPA_DRIVER_FLAGS_AP_CSA) &&
8798 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
8802 * We do not support CSA between bands, so move
8803 * GO only within the same band.
8805 if (wpa_s->ap_iface->current_mode->mode ==
8806 ieee80211_freq_to_chan(freqs[i].freq,
8813 wpa_dbg(wpa_s, MSG_DEBUG,
8814 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8815 invalid_freq, policy_move, flags);
8818 * The channel is valid, or we are going to have a policy move, so
8821 if (!invalid_freq || policy_move) {
8822 wpa_dbg(wpa_s, MSG_DEBUG,
8823 "P2P: Cancel a GO move from freq=%d MHz", freq);
8824 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8826 if (wpas_p2p_in_progress(wpa_s)) {
8827 wpa_dbg(wpa_s, MSG_DEBUG,
8828 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8829 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8831 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8832 wpas_p2p_reconsider_moving_go,
8838 if (!invalid_freq && (!policy_move || flags != 0)) {
8839 wpa_dbg(wpa_s, MSG_DEBUG,
8840 "P2P: Not initiating a GO frequency change");
8845 * Do not consider moving GO if it is in the middle of a CSA. When the
8846 * CSA is finished this flow should be retriggered.
8848 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8849 wpa_dbg(wpa_s, MSG_DEBUG,
8850 "P2P: Not initiating a GO frequency change - CSA is in progress");
8854 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
8855 timeout = P2P_GO_FREQ_CHANGE_TIME;
8859 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
8861 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8862 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
8866 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
8867 struct wpa_used_freq_data *freqs,
8869 enum wpas_p2p_channel_update_trig trig)
8871 struct wpa_supplicant *ifs;
8873 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
8877 * Travers all the radio interfaces, and for each GO interface, check
8878 * if there is a need to move the GO from the frequency it is using,
8879 * or in case the frequency is valid again, cancel the evacuation flow.
8881 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8883 if (ifs->current_ssid == NULL ||
8884 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
8888 * The GO was just started or completed channel switch, no need
8892 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
8893 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
8894 wpa_dbg(wpa_s, MSG_DEBUG,
8895 "P2P: GO move - schedule re-consideration");
8896 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8897 wpas_p2p_reconsider_moving_go,
8902 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
8907 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8909 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8912 wpas_p2p_update_channel_list(wpa_s,
8913 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
8917 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8919 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8920 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8921 "the management interface is being removed");
8922 wpas_p2p_deinit_global(wpa_s->global);
8927 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8929 if (wpa_s->ap_iface->bss)
8930 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8931 wpas_p2p_group_deinit(wpa_s);