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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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 int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
128 int *force_freq, int *pref_freq, int go,
129 unsigned int *pref_freq_list,
130 unsigned int *num_pref_freq);
131 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
132 const u8 *ssid, size_t ssid_len);
133 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
134 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
135 const u8 *dev_addr, enum p2p_wps_method wps_method,
136 int auto_join, int freq,
137 const u8 *ssid, size_t ssid_len);
138 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
139 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
140 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
141 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
142 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
144 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
145 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
147 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
148 static void wpas_stop_listen(void *ctx);
149 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
150 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
151 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
152 enum wpa_driver_if_type type);
153 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
154 int already_deleted);
155 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
156 struct wpa_used_freq_data *freqs,
158 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
159 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
161 wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
162 struct wpa_used_freq_data *freqs, unsigned int num,
163 enum wpas_p2p_channel_update_trig trig);
164 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
168 * Get the number of concurrent channels that the HW can operate, but that are
169 * currently not in use by any of the wpa_supplicant interfaces.
171 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
176 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
180 num = get_shared_radio_freqs(wpa_s, freqs,
181 wpa_s->num_multichan_concurrent);
184 unused = wpa_s->num_multichan_concurrent - num;
185 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
191 * Get the frequencies that are currently in use by one or more of the virtual
192 * interfaces, and that are also valid for P2P operation.
195 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
196 struct wpa_used_freq_data *p2p_freqs,
199 struct wpa_used_freq_data *freqs;
200 unsigned int num, i, j;
202 freqs = os_calloc(wpa_s->num_multichan_concurrent,
203 sizeof(struct wpa_used_freq_data));
207 num = get_shared_radio_freqs_data(wpa_s, freqs,
208 wpa_s->num_multichan_concurrent);
210 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
212 for (i = 0, j = 0; i < num && j < len; i++) {
213 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
214 p2p_freqs[j++] = freqs[i];
219 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
225 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
228 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
231 /* Use the wpa_s used to control the P2P Device operation */
232 wpa_s = wpa_s->global->p2p_init_wpa_s;
234 if (wpa_s->conf->p2p_ignore_shared_freq &&
235 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
236 wpas_p2p_num_unused_channels(wpa_s) > 0) {
237 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
241 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
245 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
246 struct wpa_scan_results *scan_res)
250 if (wpa_s->p2p_scan_work) {
251 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
252 wpa_s->p2p_scan_work = NULL;
253 radio_work_done(work);
256 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
259 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
260 (int) scan_res->num);
262 for (i = 0; i < scan_res->num; i++) {
263 struct wpa_scan_res *bss = scan_res->res[i];
264 struct os_reltime time_tmp_age, entry_ts;
268 time_tmp_age.sec = bss->age / 1000;
269 time_tmp_age.usec = (bss->age % 1000) * 1000;
270 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
272 ies = (const u8 *) (bss + 1);
273 ies_len = bss->ie_len;
274 if (bss->beacon_ie_len > 0 &&
275 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
276 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
277 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
278 MACSTR, MAC2STR(bss->bssid));
280 ies_len = bss->beacon_ie_len;
284 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
285 bss->freq, &entry_ts, bss->level,
290 p2p_scan_res_handled(wpa_s->global->p2p);
294 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
296 struct wpa_supplicant *wpa_s = work->wpa_s;
297 struct wpa_driver_scan_params *params = work->ctx;
301 if (!work->started) {
302 wpa_scan_free_params(params);
306 wpa_s->p2p_scan_work = NULL;
310 if (wpa_s->clear_driver_scan_cache) {
311 wpa_printf(MSG_DEBUG,
312 "Request driver to clear scan cache due to local BSS flush");
313 params->only_new_results = 1;
315 ret = wpa_drv_scan(wpa_s, params);
317 wpa_s->curr_scan_cookie = params->scan_cookie;
318 wpa_scan_free_params(params);
321 radio_work_done(work);
322 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
326 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
327 os_get_reltime(&wpa_s->scan_trigger_time);
328 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
329 wpa_s->own_scan_requested = 1;
330 wpa_s->clear_driver_scan_cache = 0;
331 wpa_s->p2p_scan_work = work;
335 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
338 if (wpa_s->global->p2p_24ghz_social_channels &&
339 (freq == 2412 || freq == 2437 || freq == 2462)) {
341 * Search all social channels regardless of whether these have
342 * been disabled for P2P operating channel use to avoid missing
347 return p2p_supported_freq(wpa_s->global->p2p, freq);
351 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
352 unsigned int num_req_dev_types,
353 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
355 struct wpa_supplicant *wpa_s = ctx;
356 struct wpa_driver_scan_params *params = NULL;
357 struct wpabuf *wps_ie, *ies;
358 unsigned int num_channels = 0;
359 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
364 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
367 if (wpa_s->p2p_scan_work) {
368 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
372 params = os_zalloc(sizeof(*params));
376 /* P2P Wildcard SSID */
377 params->num_ssids = 1;
378 n = os_malloc(P2P_WILDCARD_SSID_LEN);
381 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
382 params->ssids[0].ssid = n;
383 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
385 wpa_s->wps->dev.p2p = 1;
386 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
387 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
388 num_req_dev_types, req_dev_types);
393 case P2P_SCAN_SOCIAL:
394 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
396 if (params->freqs == NULL)
398 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
399 if (wpas_p2p_search_social_channel(
400 wpa_s, social_channels_freq[i]))
401 params->freqs[num_channels++] =
402 social_channels_freq[i];
404 params->freqs[num_channels++] = 0;
408 case P2P_SCAN_SPECIFIC:
409 params->freqs = os_calloc(2, sizeof(int));
410 if (params->freqs == NULL)
412 params->freqs[0] = freq;
413 params->freqs[1] = 0;
415 case P2P_SCAN_SOCIAL_PLUS_ONE:
416 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
418 if (params->freqs == NULL)
420 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
421 if (wpas_p2p_search_social_channel(
422 wpa_s, social_channels_freq[i]))
423 params->freqs[num_channels++] =
424 social_channels_freq[i];
426 if (p2p_supported_freq(wpa_s->global->p2p, freq))
427 params->freqs[num_channels++] = freq;
428 params->freqs[num_channels++] = 0;
432 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
433 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
438 wpabuf_put_buf(ies, wps_ie);
441 bands = wpas_get_bands(wpa_s, params->freqs);
442 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id, bands);
444 params->p2p_probe = 1;
445 n = os_malloc(wpabuf_len(ies));
450 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
451 params->extra_ies = n;
452 params->extra_ies_len = wpabuf_len(ies);
455 radio_remove_works(wpa_s, "p2p-scan", 0);
456 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
462 wpa_scan_free_params(params);
467 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
469 switch (p2p_group_interface) {
470 case P2P_GROUP_INTERFACE_PENDING:
471 return WPA_IF_P2P_GROUP;
472 case P2P_GROUP_INTERFACE_GO:
473 return WPA_IF_P2P_GO;
474 case P2P_GROUP_INTERFACE_CLIENT:
475 return WPA_IF_P2P_CLIENT;
478 return WPA_IF_P2P_GROUP;
482 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
484 size_t ssid_len, int *go)
488 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
489 for (s = wpa_s->conf->ssid; s; s = s->next) {
490 if (s->disabled != 0 || !s->p2p_group ||
491 s->ssid_len != ssid_len ||
492 os_memcmp(ssid, s->ssid, ssid_len) != 0)
494 if (s->mode == WPAS_MODE_P2P_GO &&
495 s != wpa_s->current_ssid)
498 *go = s->mode == WPAS_MODE_P2P_GO;
507 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
509 struct wpa_supplicant *wpa_s = eloop_ctx;
510 wpa_printf(MSG_DEBUG,
511 "P2P: Complete previously requested removal of %s",
513 wpas_p2p_disconnect(wpa_s);
517 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
518 struct wpa_supplicant *calling_wpa_s)
520 if (calling_wpa_s == wpa_s && wpa_s &&
521 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
523 * The calling wpa_s instance is going to be removed. Do that
524 * from an eloop callback to keep the instance available until
525 * the caller has returned. This my be needed, e.g., to provide
526 * control interface responses on the per-interface socket.
528 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
534 return wpas_p2p_disconnect(wpa_s);
538 /* Determine total number of clients in active groups where we are the GO */
539 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
541 unsigned int count = 0;
544 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
545 for (s = wpa_s->conf->ssid; s; s = s->next) {
546 wpa_printf(MSG_DEBUG,
547 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
548 wpa_s, s, s->disabled, s->p2p_group,
550 if (!s->disabled && s->p2p_group &&
551 s->mode == WPAS_MODE_P2P_GO) {
552 count += p2p_get_group_num_members(
562 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
564 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
565 !wpa_s->current_ssid->disabled &&
566 wpa_s->current_ssid->p2p_group &&
567 wpa_s->current_ssid->p2p_persistent_group;
571 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
573 return p2p_is_active_persistent_group(wpa_s) &&
574 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
578 /* Find an interface for a P2P group where we are the GO */
579 static struct wpa_supplicant *
580 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
582 struct wpa_supplicant *save = NULL;
587 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
588 if (!p2p_is_active_persistent_go(wpa_s))
591 /* Prefer a group with connected clients */
592 if (p2p_get_group_num_members(wpa_s->p2p_group))
597 /* No group with connected clients, so pick the one without (if any) */
602 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
604 return p2p_is_active_persistent_group(wpa_s) &&
605 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
609 /* Find an interface for a P2P group where we are the P2P Client */
610 static struct wpa_supplicant *
611 wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
613 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
614 if (p2p_is_active_persistent_cli(wpa_s))
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,
638 unsigned int *force_freq,
639 unsigned int *pref_freq)
641 struct wpa_supplicant *wpa_s = ctx;
643 u8 conncap = P2PS_SETUP_NONE;
644 unsigned int owned_members = 0;
645 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
646 struct wpa_ssid *persistent_go;
647 int p2p_no_group_iface;
648 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
650 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
657 size = P2P_MAX_PREF_CHANNELS;
658 if (force_freq && pref_freq &&
659 !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
660 (int *) pref_freq, 0, pref_freq_list, &size))
661 wpas_p2p_set_own_freq_preference(wpa_s,
662 *force_freq ? *force_freq :
666 * For non-concurrent capable devices:
667 * If persistent_go, then no new.
668 * If GO, then no client.
669 * If client, then no GO.
671 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
673 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
674 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
675 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
676 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
678 wpa_printf(MSG_DEBUG,
679 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
680 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
682 /* If not concurrent, restrict our choices */
683 if (p2p_no_group_iface) {
684 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
687 return P2PS_SETUP_NONE;
690 if (role == P2PS_SETUP_CLIENT ||
691 incoming == P2PS_SETUP_GROUP_OWNER ||
692 p2p_client_limit_reached(go_wpa_s->p2p_group))
693 return P2PS_SETUP_NONE;
695 return P2PS_SETUP_GROUP_OWNER;
699 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
701 return P2PS_SETUP_GROUP_OWNER |
703 if (incoming == P2PS_SETUP_NEW) {
706 if (os_get_random(&r, sizeof(r)) < 0 ||
708 return P2PS_SETUP_CLIENT;
709 return P2PS_SETUP_GROUP_OWNER;
715 /* If a required role has been specified, handle it here */
716 if (role && role != P2PS_SETUP_NEW) {
718 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
719 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
721 * Peer has an active GO, so if the role allows it and
722 * we do not have any active roles, become client.
724 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
726 return P2PS_SETUP_CLIENT;
730 case P2PS_SETUP_NONE:
735 case P2PS_SETUP_GROUP_OWNER:
737 * Must be a complimentary role - cannot be a client to
738 * more than one peer.
740 if (incoming == role || cli_wpa_s)
741 return P2PS_SETUP_NONE;
743 return P2PS_SETUP_CLIENT;
745 case P2PS_SETUP_CLIENT:
746 /* Must be a complimentary role */
747 if (incoming != role) {
748 conncap = P2PS_SETUP_GROUP_OWNER;
754 return P2PS_SETUP_NONE;
759 * For now, we only will support ownership of one group, and being a
760 * client of one group. Therefore, if we have either an existing GO
761 * group, or an existing client group, we will not do a new GO
762 * negotiation, but rather try to re-use the existing groups.
765 case P2PS_SETUP_NONE:
768 conncap = P2PS_SETUP_GROUP_OWNER;
769 else if (!owned_members)
770 conncap = P2PS_SETUP_NEW;
771 else if (incoming == P2PS_SETUP_NONE)
772 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
774 conncap = P2PS_SETUP_CLIENT;
777 case P2PS_SETUP_CLIENT:
778 conncap = P2PS_SETUP_GROUP_OWNER;
781 case P2PS_SETUP_GROUP_OWNER:
783 conncap = P2PS_SETUP_CLIENT;
786 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
787 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
789 conncap = P2PS_SETUP_GROUP_OWNER;
793 if (os_get_random(&r, sizeof(r)) < 0 ||
795 conncap = P2PS_SETUP_CLIENT;
797 conncap = P2PS_SETUP_GROUP_OWNER;
802 return P2PS_SETUP_NONE;
806 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
807 (!incoming && (conncap & P2PS_SETUP_NEW))) {
808 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
809 conncap &= ~P2PS_SETUP_GROUP_OWNER;
811 s = wpas_p2p_get_persistent_go(wpa_s);
812 if (!s && !go_wpa_s && p2p_no_group_iface) {
813 p2p_set_intended_addr(wpa_s->global->p2p,
815 wpa_s->parent->own_addr :
817 } else if (!s && !go_wpa_s) {
818 if (wpas_p2p_add_group_interface(wpa_s,
819 WPA_IF_P2P_GROUP) < 0) {
820 wpa_printf(MSG_ERROR,
821 "P2P: Failed to allocate a new interface for the group");
822 return P2PS_SETUP_NONE;
824 wpa_s->global->pending_group_iface_for_p2ps = 1;
825 p2p_set_intended_addr(wpa_s->global->p2p,
826 wpa_s->pending_interface_addr);
834 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
835 enum p2p_group_removal_reason removal_reason)
837 struct wpa_ssid *ssid;
841 ssid = wpa_s->current_ssid;
844 * The current SSID was not known, but there may still be a
845 * pending P2P group interface waiting for provisioning or a
846 * P2P group that is trying to reconnect.
848 ssid = wpa_s->conf->ssid;
850 if (ssid->p2p_group && ssid->disabled != 2)
855 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
857 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
862 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
864 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
865 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
866 wpa_s->reassociate = 0;
867 wpa_s->disconnected = 1;
872 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
873 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
875 if (os_strcmp(gtype, "client") == 0) {
876 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
877 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
879 wpa_printf(MSG_DEBUG,
880 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
881 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
882 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
887 if (wpa_s->cross_connect_in_use) {
888 wpa_s->cross_connect_in_use = 0;
889 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
890 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
891 wpa_s->ifname, wpa_s->cross_connect_uplink);
893 switch (removal_reason) {
894 case P2P_GROUP_REMOVAL_REQUESTED:
895 reason = " reason=REQUESTED";
897 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
898 reason = " reason=FORMATION_FAILED";
900 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
901 reason = " reason=IDLE";
903 case P2P_GROUP_REMOVAL_UNAVAILABLE:
904 reason = " reason=UNAVAILABLE";
906 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
907 reason = " reason=GO_ENDING_SESSION";
909 case P2P_GROUP_REMOVAL_PSK_FAILURE:
910 reason = " reason=PSK_FAILURE";
912 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
913 reason = " reason=FREQ_CONFLICT";
919 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
920 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
921 P2P_EVENT_GROUP_REMOVED "%s %s%s",
922 wpa_s->ifname, gtype, reason);
925 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
926 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
927 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
928 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
929 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
930 wpa_s->p2pdev, NULL) > 0) {
931 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
933 wpa_s->p2p_in_provisioning = 0;
934 wpas_p2p_group_formation_failed(wpa_s, 1);
937 wpa_s->p2p_in_invitation = 0;
938 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
939 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
942 * Make sure wait for the first client does not remain active after the
943 * group has been removed.
945 wpa_s->global->p2p_go_wait_client.sec = 0;
947 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
948 struct wpa_global *global;
950 enum wpa_driver_if_type type;
951 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
953 global = wpa_s->global;
954 ifname = os_strdup(wpa_s->ifname);
955 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
956 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
957 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
958 wpa_s = global->ifaces;
960 wpa_drv_if_remove(wpa_s, type, ifname);
966 * The primary interface was used for P2P group operations, so
967 * need to reset its p2pdev.
969 wpa_s->p2pdev = wpa_s->parent;
971 if (!wpa_s->p2p_go_group_formation_completed) {
972 wpa_s->global->p2p_group_formation = NULL;
973 wpa_s->p2p_in_provisioning = 0;
976 wpa_s->show_group_started = 0;
977 os_free(wpa_s->go_params);
978 wpa_s->go_params = NULL;
980 os_free(wpa_s->p2p_group_common_freqs);
981 wpa_s->p2p_group_common_freqs = NULL;
982 wpa_s->p2p_group_common_freqs_num = 0;
984 wpa_s->waiting_presence_resp = 0;
986 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
987 if (ssid && (ssid->p2p_group ||
988 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
989 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
991 if (ssid == wpa_s->current_ssid) {
992 wpa_sm_set_config(wpa_s->wpa, NULL);
993 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
994 wpa_s->current_ssid = NULL;
997 * Networks objects created during any P2P activities are not
998 * exposed out as they might/will confuse certain non-P2P aware
999 * applications since these network objects won't behave like
1002 * Likewise, we don't send out network removed signals for such
1005 wpa_config_remove_network(wpa_s->conf, id);
1006 wpa_supplicant_clear_status(wpa_s);
1007 wpa_supplicant_cancel_sched_scan(wpa_s);
1009 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
1012 if (wpa_s->ap_iface)
1013 wpa_supplicant_ap_deinit(wpa_s);
1015 wpa_drv_deinit_p2p_cli(wpa_s);
1017 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1023 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1025 const u8 *ssid, size_t ssid_len)
1027 struct wpa_bss *bss;
1033 if (wpa_s->go_params)
1034 bssid = wpa_s->go_params->peer_interface_addr;
1036 bssid = wpa_s->bssid;
1038 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
1039 if (bss == NULL && wpa_s->go_params &&
1040 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1041 bss = wpa_bss_get_p2p_dev_addr(
1042 wpa_s, wpa_s->go_params->peer_device_addr);
1044 u8 iface_addr[ETH_ALEN];
1045 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1047 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1050 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1051 "group is persistent - BSS " MACSTR " not found",
1056 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1058 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1059 P2P_IE_VENDOR_TYPE);
1061 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1062 "group is persistent - BSS " MACSTR
1063 " did not include P2P IE", MAC2STR(bssid));
1064 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1065 (u8 *) (bss + 1), bss->ie_len);
1066 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1067 ((u8 *) bss + 1) + bss->ie_len,
1068 bss->beacon_ie_len);
1072 group_capab = p2p_get_group_capab(p2p);
1073 addr = p2p_get_go_dev_addr(p2p);
1074 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1075 "group_capab=0x%x", group_capab);
1077 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1078 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1081 os_memset(go_dev_addr, 0, ETH_ALEN);
1084 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1085 "go_dev_addr=" MACSTR,
1086 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1088 return !!(group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP);
1092 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1093 struct wpa_ssid *ssid,
1094 const u8 *go_dev_addr)
1099 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1100 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1101 for (s = wpa_s->conf->ssid; s; s = s->next) {
1102 if (s->disabled == 2 &&
1103 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1104 s->ssid_len == ssid->ssid_len &&
1105 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1110 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1112 if (ssid->passphrase && !s->passphrase)
1114 else if (ssid->passphrase && s->passphrase &&
1115 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1118 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1121 s = wpa_config_add_network(wpa_s->conf);
1126 * Instead of network_added we emit persistent_group_added
1127 * notification. Also to keep the defense checks in
1128 * persistent_group obj registration method, we set the
1129 * relevant flags in s to designate it as a persistent group.
1132 s->p2p_persistent_group = 1;
1133 wpas_notify_persistent_group_added(wpa_s, s);
1134 wpa_config_set_network_defaults(s);
1138 s->p2p_persistent_group = 1;
1141 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1142 s->mode = ssid->mode;
1143 s->auth_alg = WPA_AUTH_ALG_OPEN;
1144 s->key_mgmt = WPA_KEY_MGMT_PSK;
1145 s->proto = WPA_PROTO_RSN;
1146 s->pbss = ssid->pbss;
1147 s->pairwise_cipher = ssid->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
1149 if (ssid->passphrase) {
1150 os_free(s->passphrase);
1151 s->passphrase = os_strdup(ssid->passphrase);
1153 if (ssid->psk_set) {
1155 os_memcpy(s->psk, ssid->psk, 32);
1157 if (s->passphrase && !s->psk_set)
1158 wpa_config_update_psk(s);
1159 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1161 s->ssid = os_malloc(ssid->ssid_len);
1164 s->ssid_len = ssid->ssid_len;
1165 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1167 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1168 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1169 wpa_s->global->add_psk = NULL;
1173 if (changed && wpa_s->conf->update_config &&
1174 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1175 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1182 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1185 struct wpa_ssid *ssid, *s;
1189 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1191 ssid = wpa_s->current_ssid;
1192 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1193 !ssid->p2p_persistent_group)
1196 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1197 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1200 if (s->ssid_len == ssid->ssid_len &&
1201 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1208 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1209 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1213 if (i == s->num_p2p_clients - 1)
1214 return; /* already the most recent entry */
1216 /* move the entry to mark it most recent */
1217 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1218 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1219 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1220 os_memcpy(s->p2p_client_list +
1221 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1223 os_memset(s->p2p_client_list +
1224 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1230 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1231 n = os_realloc_array(s->p2p_client_list,
1232 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1235 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1237 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1239 s->p2p_client_list = n;
1240 s->num_p2p_clients++;
1241 } else if (!found && s->p2p_client_list) {
1242 /* Not enough room for an additional entry - drop the oldest
1244 os_memmove(s->p2p_client_list,
1245 s->p2p_client_list + 2 * ETH_ALEN,
1246 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1247 os_memcpy(s->p2p_client_list +
1248 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1250 os_memset(s->p2p_client_list +
1251 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1255 if (p2p_wpa_s->conf->update_config &&
1256 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1257 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1261 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1262 int go, struct wpa_ssid *ssid, int freq,
1263 const u8 *psk, const char *passphrase,
1264 const u8 *go_dev_addr, int persistent,
1267 const char *ssid_txt;
1271 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1276 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1280 if (passphrase && passphrase[0] == '\0')
1284 * Include PSK/passphrase only in the control interface message and
1285 * leave it out from the debug log entry.
1287 wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
1288 P2P_EVENT_GROUP_STARTED
1289 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1291 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1292 psk ? " psk=" : "", psk_txt,
1293 passphrase ? " passphrase=\"" : "",
1294 passphrase ? passphrase : "",
1295 passphrase ? "\"" : "",
1296 MAC2STR(go_dev_addr),
1297 persistent ? " [PERSISTENT]" : "", extra);
1298 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1299 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1300 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1301 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1306 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1307 int success, int already_deleted)
1309 struct wpa_ssid *ssid;
1312 u8 go_dev_addr[ETH_ALEN];
1315 * This callback is likely called for the main interface. Update wpa_s
1316 * to use the group interface if a new interface was created for the
1319 if (wpa_s->global->p2p_group_formation)
1320 wpa_s = wpa_s->global->p2p_group_formation;
1321 if (wpa_s->p2p_go_group_formation_completed) {
1322 wpa_s->global->p2p_group_formation = NULL;
1323 wpa_s->p2p_in_provisioning = 0;
1324 } else if (wpa_s->p2p_in_provisioning && !success) {
1325 wpa_msg(wpa_s, MSG_DEBUG,
1326 "P2P: Stop provisioning state due to failure");
1327 wpa_s->p2p_in_provisioning = 0;
1329 wpa_s->p2p_in_invitation = 0;
1330 wpa_s->group_formation_reported = 1;
1333 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1334 P2P_EVENT_GROUP_FORMATION_FAILURE);
1335 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1336 if (already_deleted)
1338 wpas_p2p_group_delete(wpa_s,
1339 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1343 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1344 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1346 ssid = wpa_s->current_ssid;
1347 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1348 ssid->mode = WPAS_MODE_P2P_GO;
1349 p2p_group_notif_formation_done(wpa_s->p2p_group);
1350 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1355 client = ssid->mode == WPAS_MODE_INFRA;
1356 if (ssid->mode == WPAS_MODE_P2P_GO) {
1357 persistent = ssid->p2p_persistent_group;
1358 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1361 persistent = wpas_p2p_persistent_group(wpa_s,
1366 client = wpa_s->p2p_group_interface ==
1367 P2P_GROUP_INTERFACE_CLIENT;
1368 os_memset(go_dev_addr, 0, ETH_ALEN);
1371 wpa_s->show_group_started = 0;
1374 * Indicate event only after successfully completed 4-way
1375 * handshake, i.e., when the interface is ready for data
1378 wpa_s->show_group_started = 1;
1380 wpas_p2p_group_started(wpa_s, 1, ssid,
1381 ssid ? ssid->frequency : 0,
1382 ssid && ssid->passphrase == NULL &&
1383 ssid->psk_set ? ssid->psk : NULL,
1384 ssid ? ssid->passphrase : NULL,
1385 go_dev_addr, persistent, "");
1386 wpas_p2p_cross_connect_setup(wpa_s);
1387 wpas_p2p_set_group_idle_timeout(wpa_s);
1391 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
1394 os_free(wpa_s->global->add_psk);
1395 wpa_s->global->add_psk = NULL;
1399 wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 0, NULL);
1400 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1405 struct send_action_work {
1411 unsigned int wait_time;
1416 static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1418 struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1420 wpa_printf(MSG_DEBUG,
1421 "P2P: Free Action frame radio work @%p (freq=%u dst="
1422 MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1423 wpa_s->p2p_send_action_work, awork->freq,
1424 MAC2STR(awork->dst), MAC2STR(awork->src),
1425 MAC2STR(awork->bssid), awork->wait_time);
1426 wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1427 awork->buf, awork->len);
1429 wpa_s->p2p_send_action_work->ctx = NULL;
1430 radio_work_done(wpa_s->p2p_send_action_work);
1431 wpa_s->p2p_send_action_work = NULL;
1435 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1438 struct wpa_supplicant *wpa_s = eloop_ctx;
1440 if (!wpa_s->p2p_send_action_work)
1443 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1444 wpas_p2p_free_send_action_work(wpa_s);
1448 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1450 if (wpa_s->p2p_send_action_work) {
1451 struct send_action_work *awork;
1453 awork = wpa_s->p2p_send_action_work->ctx;
1454 wpa_printf(MSG_DEBUG,
1455 "P2P: Clear Action TX work @%p (wait_time=%u)",
1456 wpa_s->p2p_send_action_work, awork->wait_time);
1457 if (awork->wait_time == 0) {
1458 wpas_p2p_free_send_action_work(wpa_s);
1461 * In theory, this should not be needed, but number of
1462 * places in the P2P code is still using non-zero wait
1463 * time for the last Action frame in the sequence and
1464 * some of these do not call send_action_done().
1466 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1468 eloop_register_timeout(
1469 0, awork->wait_time * 1000,
1470 wpas_p2p_send_action_work_timeout,
1477 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1479 const u8 *dst, const u8 *src,
1481 const u8 *data, size_t data_len,
1482 enum offchannel_send_action_result
1485 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1487 wpas_p2p_action_tx_clear(wpa_s);
1489 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1493 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1494 res = P2P_SEND_ACTION_SUCCESS;
1496 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1497 res = P2P_SEND_ACTION_NO_ACK;
1499 case OFFCHANNEL_SEND_ACTION_FAILED:
1500 res = P2P_SEND_ACTION_FAILED;
1504 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1506 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1507 wpa_s->pending_pd_before_join &&
1508 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1509 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1510 wpa_s->p2p_fallback_to_go_neg) {
1511 wpa_s->pending_pd_before_join = 0;
1512 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1513 "during p2p_connect-auto");
1514 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1515 P2P_EVENT_FALLBACK_TO_GO_NEG
1516 "reason=no-ACK-to-PD-Req");
1517 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1523 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1525 struct wpa_supplicant *wpa_s = work->wpa_s;
1526 struct send_action_work *awork = work->ctx;
1529 if (work->started) {
1530 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1532 wpa_s->p2p_send_action_work = NULL;
1533 offchannel_send_action_done(wpa_s);
1539 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1540 awork->bssid, awork->buf, awork->len,
1542 wpas_p2p_send_action_tx_status, 1) < 0) {
1544 radio_work_done(work);
1547 wpa_s->p2p_send_action_work = work;
1551 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1552 unsigned int freq, const u8 *dst,
1553 const u8 *src, const u8 *bssid, const u8 *buf,
1554 size_t len, unsigned int wait_time)
1556 struct send_action_work *awork;
1558 if (wpa_s->p2p_send_action_work) {
1559 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1563 awork = os_zalloc(sizeof(*awork) + len);
1568 os_memcpy(awork->dst, dst, ETH_ALEN);
1569 os_memcpy(awork->src, src, ETH_ALEN);
1570 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1572 awork->wait_time = wait_time;
1573 os_memcpy(awork->buf, buf, len);
1575 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1576 wpas_send_action_cb, awork) < 0) {
1585 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1586 const u8 *src, const u8 *bssid, const u8 *buf,
1587 size_t len, unsigned int wait_time)
1589 struct wpa_supplicant *wpa_s = ctx;
1590 int listen_freq = -1, send_freq = -1;
1592 if (wpa_s->p2p_listen_work)
1593 listen_freq = wpa_s->p2p_listen_work->freq;
1594 if (wpa_s->p2p_send_action_work)
1595 send_freq = wpa_s->p2p_send_action_work->freq;
1596 if (listen_freq != (int) freq && send_freq != (int) freq) {
1597 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1598 listen_freq, send_freq);
1599 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1603 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1604 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1606 wpas_p2p_send_action_tx_status, 1);
1610 static void wpas_send_action_done(void *ctx)
1612 struct wpa_supplicant *wpa_s = ctx;
1614 if (wpa_s->p2p_send_action_work) {
1615 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1617 os_free(wpa_s->p2p_send_action_work->ctx);
1618 radio_work_done(wpa_s->p2p_send_action_work);
1619 wpa_s->p2p_send_action_work = NULL;
1622 offchannel_send_action_done(wpa_s);
1626 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1627 struct p2p_go_neg_results *params)
1629 if (wpa_s->go_params == NULL) {
1630 wpa_s->go_params = os_malloc(sizeof(*params));
1631 if (wpa_s->go_params == NULL)
1634 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1639 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1640 struct p2p_go_neg_results *res)
1642 wpa_s->group_formation_reported = 0;
1643 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1644 " dev_addr " MACSTR " wps_method %d",
1645 MAC2STR(res->peer_interface_addr),
1646 MAC2STR(res->peer_device_addr), res->wps_method);
1647 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1648 res->ssid, res->ssid_len);
1649 wpa_supplicant_ap_deinit(wpa_s);
1650 wpas_copy_go_neg_results(wpa_s, res);
1651 if (res->wps_method == WPS_PBC) {
1652 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1653 #ifdef CONFIG_WPS_NFC
1654 } else if (res->wps_method == WPS_NFC) {
1655 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1656 res->peer_interface_addr,
1657 wpa_s->p2pdev->p2p_oob_dev_pw,
1658 wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
1659 wpa_s->p2pdev->p2p_oob_dev_pw_id ==
1660 DEV_PW_NFC_CONNECTION_HANDOVER ?
1661 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
1664 #endif /* CONFIG_WPS_NFC */
1666 u16 dev_pw_id = DEV_PW_DEFAULT;
1667 if (wpa_s->p2p_wps_method == WPS_P2PS)
1668 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1669 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1670 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1671 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1672 wpa_s->p2p_pin, 1, dev_pw_id);
1677 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1678 struct wpa_ssid *ssid)
1680 struct wpa_ssid *persistent;
1681 struct psk_list_entry *psk;
1682 struct hostapd_data *hapd;
1684 if (!wpa_s->ap_iface)
1687 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
1689 if (persistent == NULL)
1692 hapd = wpa_s->ap_iface->bss[0];
1694 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1696 struct hostapd_wpa_psk *hpsk;
1698 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1700 MAC2STR(psk->addr), psk->p2p);
1701 hpsk = os_zalloc(sizeof(*hpsk));
1704 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1706 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1708 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1709 hpsk->next = hapd->conf->ssid.wpa_psk;
1710 hapd->conf->ssid.wpa_psk = hpsk;
1715 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1717 char buf[20 + P2P_MAX_CHANNELS * 6];
1723 end = pos + sizeof(buf);
1724 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
1725 res = os_snprintf(pos, end - pos, " %d",
1726 wpa_s->p2p_group_common_freqs[i]);
1727 if (os_snprintf_error(end - pos, res))
1733 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies:%s", buf);
1737 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1738 struct p2p_go_neg_results *params)
1740 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1742 wpa_s->p2p_group_common_freqs_num = 0;
1743 os_free(wpa_s->p2p_group_common_freqs);
1744 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1745 if (!wpa_s->p2p_group_common_freqs)
1748 for (i = 0; i < len; i++) {
1749 if (!wpa_s->go_params->freq_list[i])
1751 wpa_s->p2p_group_common_freqs[i] =
1752 wpa_s->go_params->freq_list[i];
1754 wpa_s->p2p_group_common_freqs_num = i;
1758 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1760 #ifndef CONFIG_NO_CONFIG_WRITE
1761 if (wpa_s->p2pdev->conf->update_config &&
1762 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
1763 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1764 #endif /* CONFIG_NO_CONFIG_WRITE */
1768 static void p2p_go_configured(void *ctx, void *data)
1770 struct wpa_supplicant *wpa_s = ctx;
1771 struct p2p_go_neg_results *params = data;
1772 struct wpa_ssid *ssid;
1774 wpa_s->ap_configured_cb = NULL;
1775 wpa_s->ap_configured_cb_ctx = NULL;
1776 wpa_s->ap_configured_cb_data = NULL;
1777 if (!wpa_s->go_params) {
1778 wpa_printf(MSG_ERROR,
1779 "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1783 p2p_go_save_group_common_freqs(wpa_s, params);
1784 p2p_go_dump_common_freqs(wpa_s);
1786 ssid = wpa_s->current_ssid;
1787 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1788 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1789 if (wpa_s->global->p2p_group_formation == wpa_s)
1790 wpa_s->global->p2p_group_formation = NULL;
1791 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1792 params->passphrase[0] == '\0' ?
1795 wpa_s->global->p2p_dev_addr,
1796 params->persistent_group, "");
1797 wpa_s->group_formation_reported = 1;
1799 if (wpa_s->p2pdev->p2ps_method_config_any) {
1800 if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
1801 wpa_dbg(wpa_s, MSG_DEBUG,
1802 "P2PS: Setting default PIN for ANY");
1803 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1804 "12345670", NULL, 0,
1807 wpa_dbg(wpa_s, MSG_DEBUG,
1808 "P2PS: Setting default PIN for " MACSTR,
1809 MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
1810 wpa_supplicant_ap_wps_pin(
1811 wpa_s, wpa_s->p2pdev->p2ps_join_addr,
1812 "12345670", NULL, 0, 0);
1814 wpa_s->p2pdev->p2ps_method_config_any = 0;
1817 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1818 if (params->persistent_group) {
1819 wpas_p2p_store_persistent_group(
1820 wpa_s->p2pdev, ssid,
1821 wpa_s->global->p2p_dev_addr);
1822 wpas_p2p_add_psk_list(wpa_s, ssid);
1825 wpas_notify_p2p_group_started(wpa_s, ssid,
1826 params->persistent_group, 0,
1828 wpas_p2p_cross_connect_setup(wpa_s);
1829 wpas_p2p_set_group_idle_timeout(wpa_s);
1831 if (wpa_s->p2p_first_connection_timeout) {
1832 wpa_dbg(wpa_s, MSG_DEBUG,
1833 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1834 wpa_s->p2p_first_connection_timeout);
1835 wpa_s->p2p_go_group_formation_completed = 0;
1836 wpa_s->global->p2p_group_formation = wpa_s;
1837 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1838 wpa_s->p2pdev, NULL);
1839 eloop_register_timeout(
1840 wpa_s->p2p_first_connection_timeout, 0,
1841 wpas_p2p_group_formation_timeout,
1842 wpa_s->p2pdev, NULL);
1848 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1849 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1850 params->peer_interface_addr)) {
1851 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1855 if (params->wps_method == WPS_PBC) {
1856 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1857 params->peer_device_addr);
1858 #ifdef CONFIG_WPS_NFC
1859 } else if (params->wps_method == WPS_NFC) {
1860 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
1861 DEV_PW_NFC_CONNECTION_HANDOVER &&
1862 !wpa_s->p2pdev->p2p_oob_dev_pw) {
1863 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1866 wpas_ap_wps_add_nfc_pw(
1867 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
1868 wpa_s->p2pdev->p2p_oob_dev_pw,
1869 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
1870 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
1871 #endif /* CONFIG_WPS_NFC */
1872 } else if (wpa_s->p2p_pin[0])
1873 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1874 wpa_s->p2p_pin, NULL, 0, 0);
1875 os_free(wpa_s->go_params);
1876 wpa_s->go_params = NULL;
1880 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1881 struct p2p_go_neg_results *params,
1882 int group_formation)
1884 struct wpa_ssid *ssid;
1886 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1887 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1888 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1893 ssid = wpa_config_add_network(wpa_s->conf);
1895 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1899 wpa_s->show_group_started = 0;
1900 wpa_s->p2p_go_group_formation_completed = 0;
1901 wpa_s->group_formation_reported = 0;
1902 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1904 wpa_config_set_network_defaults(ssid);
1905 ssid->temporary = 1;
1906 ssid->p2p_group = 1;
1907 ssid->p2p_persistent_group = !!params->persistent_group;
1908 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1910 ssid->frequency = params->freq;
1911 ssid->ht40 = params->ht40;
1912 ssid->vht = params->vht;
1913 ssid->max_oper_chwidth = params->max_oper_chwidth;
1914 ssid->vht_center_freq2 = params->vht_center_freq2;
1915 ssid->ssid = os_zalloc(params->ssid_len + 1);
1917 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1918 ssid->ssid_len = params->ssid_len;
1920 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1921 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1922 ssid->proto = WPA_PROTO_RSN;
1923 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1924 ssid->group_cipher = WPA_CIPHER_CCMP;
1925 if (params->freq > 56160) {
1927 * Enable GCMP instead of CCMP as pairwise_cipher and
1928 * group_cipher in 60 GHz.
1930 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1931 ssid->group_cipher = WPA_CIPHER_GCMP;
1932 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1935 if (os_strlen(params->passphrase) > 0) {
1936 ssid->passphrase = os_strdup(params->passphrase);
1937 if (ssid->passphrase == NULL) {
1938 wpa_msg_global(wpa_s, MSG_ERROR,
1939 "P2P: Failed to copy passphrase for GO");
1940 wpa_config_remove_network(wpa_s->conf, ssid->id);
1944 ssid->passphrase = NULL;
1945 ssid->psk_set = params->psk_set;
1947 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1948 else if (ssid->passphrase)
1949 wpa_config_update_psk(ssid);
1950 ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
1952 wpa_s->ap_configured_cb = p2p_go_configured;
1953 wpa_s->ap_configured_cb_ctx = wpa_s;
1954 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1955 wpa_s->scan_req = NORMAL_SCAN_REQ;
1956 wpa_s->connect_without_scan = ssid;
1957 wpa_s->reassociate = 1;
1958 wpa_s->disconnected = 0;
1959 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1961 wpa_supplicant_req_scan(wpa_s, 0, 0);
1965 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1966 const struct wpa_supplicant *src)
1968 struct wpa_config *d;
1969 const struct wpa_config *s;
1976 if (s->n && !d->n) \
1977 d->n = os_strdup(s->n); \
1988 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1989 os_memcpy(d->sec_device_type, s->sec_device_type,
1990 sizeof(d->sec_device_type));
1991 d->num_sec_device_types = s->num_sec_device_types;
1993 d->p2p_group_idle = s->p2p_group_idle;
1994 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1995 d->p2p_intra_bss = s->p2p_intra_bss;
1996 d->persistent_reconnect = s->persistent_reconnect;
1997 d->max_num_sta = s->max_num_sta;
1998 d->pbc_in_m1 = s->pbc_in_m1;
1999 d->ignore_old_scan_res = s->ignore_old_scan_res;
2000 d->beacon_int = s->beacon_int;
2001 d->dtim_period = s->dtim_period;
2002 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
2003 d->disassoc_low_ack = s->disassoc_low_ack;
2004 d->disable_scan_offload = s->disable_scan_offload;
2005 d->passive_scan = s->passive_scan;
2007 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey &&
2008 !d->wps_nfc_pw_from_config) {
2009 wpabuf_free(d->wps_nfc_dh_privkey);
2010 wpabuf_free(d->wps_nfc_dh_pubkey);
2011 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
2012 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
2014 d->p2p_cli_probe = s->p2p_cli_probe;
2015 d->go_interworking = s->go_interworking;
2016 d->go_access_network_type = s->go_access_network_type;
2017 d->go_internet = s->go_internet;
2018 d->go_venue_group = s->go_venue_group;
2019 d->go_venue_type = s->go_venue_type;
2023 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
2024 char *ifname, size_t len)
2026 char *ifname_ptr = wpa_s->ifname;
2028 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
2029 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
2030 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
2033 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
2034 if (os_strlen(ifname) >= IFNAMSIZ &&
2035 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
2038 /* Try to avoid going over the IFNAMSIZ length limit */
2039 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2040 if (os_snprintf_error(len, res) && len)
2041 ifname[len - 1] = '\0';
2046 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2047 enum wpa_driver_if_type type)
2049 char ifname[120], force_ifname[120];
2051 if (wpa_s->pending_interface_name[0]) {
2052 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2053 "- skip creation of a new one");
2054 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2055 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2056 "unknown?! ifname='%s'",
2057 wpa_s->pending_interface_name);
2063 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2064 force_ifname[0] = '\0';
2066 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2068 wpa_s->p2p_group_idx++;
2070 wpa_s->pending_interface_type = type;
2071 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2072 wpa_s->pending_interface_addr, NULL) < 0) {
2073 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2078 if (force_ifname[0]) {
2079 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2081 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2082 sizeof(wpa_s->pending_interface_name));
2084 os_strlcpy(wpa_s->pending_interface_name, ifname,
2085 sizeof(wpa_s->pending_interface_name));
2086 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2087 MACSTR, wpa_s->pending_interface_name,
2088 MAC2STR(wpa_s->pending_interface_addr));
2094 static void wpas_p2p_remove_pending_group_interface(
2095 struct wpa_supplicant *wpa_s)
2097 if (!wpa_s->pending_interface_name[0] ||
2098 is_zero_ether_addr(wpa_s->pending_interface_addr))
2099 return; /* No pending virtual interface */
2101 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2102 wpa_s->pending_interface_name);
2103 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2104 wpa_s->pending_interface_name);
2105 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2106 wpa_s->pending_interface_name[0] = '\0';
2107 wpa_s->global->pending_group_iface_for_p2ps = 0;
2111 static struct wpa_supplicant *
2112 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2114 struct wpa_interface iface;
2115 struct wpa_supplicant *group_wpa_s;
2117 if (!wpa_s->pending_interface_name[0]) {
2118 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2119 if (!wpas_p2p_create_iface(wpa_s))
2122 * Something has forced us to remove the pending interface; try
2123 * to create a new one and hope for the best that we will get
2124 * the same local address.
2126 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2127 WPA_IF_P2P_CLIENT) < 0)
2131 os_memset(&iface, 0, sizeof(iface));
2132 iface.ifname = wpa_s->pending_interface_name;
2133 iface.driver = wpa_s->driver->name;
2134 if (wpa_s->conf->ctrl_interface == NULL &&
2135 wpa_s->parent != wpa_s &&
2137 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2138 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2140 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2141 iface.driver_param = wpa_s->conf->driver_param;
2142 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2143 if (group_wpa_s == NULL) {
2144 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2145 "wpa_supplicant interface");
2148 wpa_s->pending_interface_name[0] = '\0';
2149 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2150 P2P_GROUP_INTERFACE_CLIENT;
2151 wpa_s->global->p2p_group_formation = group_wpa_s;
2152 wpa_s->global->pending_group_iface_for_p2ps = 0;
2154 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2160 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2163 struct wpa_supplicant *wpa_s = eloop_ctx;
2164 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2165 wpas_p2p_group_formation_failed(wpa_s, 0);
2169 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2170 int already_deleted)
2172 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2173 wpa_s->p2pdev, NULL);
2174 if (wpa_s->global->p2p)
2175 p2p_group_formation_failed(wpa_s->global->p2p);
2176 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2180 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2182 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2183 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2184 wpa_s->p2pdev, NULL);
2185 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2186 wpa_s->p2pdev, NULL);
2187 wpa_s->global->p2p_fail_on_wps_complete = 0;
2191 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2193 if (wpa_s->global->p2p_group_formation != wpa_s)
2195 /* Speed up group formation timeout since this cannot succeed */
2196 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2197 wpa_s->p2pdev, NULL);
2198 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2199 wpa_s->p2pdev, NULL);
2203 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2205 struct wpa_supplicant *wpa_s = ctx;
2206 struct wpa_supplicant *group_wpa_s;
2208 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2209 wpa_drv_cancel_remain_on_channel(wpa_s);
2210 wpa_s->off_channel_freq = 0;
2211 wpa_s->roc_waiting_drv_freq = 0;
2215 wpa_msg_global(wpa_s, MSG_INFO,
2216 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2218 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2219 wpas_p2p_remove_pending_group_interface(wpa_s);
2223 if (!res->role_go) {
2224 /* Inform driver of the operating channel of GO. */
2225 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2228 if (wpa_s->p2p_go_ht40)
2230 if (wpa_s->p2p_go_vht)
2232 res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2233 res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2235 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2236 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2238 res->role_go ? "GO" : "client", res->freq, res->ht40,
2239 MAC2STR(res->peer_device_addr),
2240 MAC2STR(res->peer_interface_addr),
2241 p2p_wps_method_text(res->wps_method));
2242 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2244 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2245 struct wpa_ssid *ssid;
2246 ssid = wpa_config_get_network(wpa_s->conf,
2247 wpa_s->p2p_persistent_id);
2248 if (ssid && ssid->disabled == 2 &&
2249 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2250 size_t len = os_strlen(ssid->passphrase);
2251 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2252 "on requested persistent group");
2253 os_memcpy(res->passphrase, ssid->passphrase, len);
2254 res->passphrase[len] = '\0';
2258 if (wpa_s->create_p2p_iface) {
2260 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2261 if (group_wpa_s == NULL) {
2262 wpas_p2p_remove_pending_group_interface(wpa_s);
2263 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2265 wpas_p2p_group_formation_failed(wpa_s, 1);
2268 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2269 wpa_s->pending_interface_name[0] = '\0';
2271 group_wpa_s = wpa_s->parent;
2272 wpa_s->global->p2p_group_formation = group_wpa_s;
2273 if (group_wpa_s != wpa_s)
2274 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2277 group_wpa_s->p2p_in_provisioning = 1;
2278 group_wpa_s->p2pdev = wpa_s;
2279 if (group_wpa_s != wpa_s) {
2280 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2281 sizeof(group_wpa_s->p2p_pin));
2282 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2285 wpas_start_wps_go(group_wpa_s, res, 1);
2287 os_get_reltime(&group_wpa_s->scan_min_time);
2288 wpas_start_wps_enrollee(group_wpa_s, res);
2291 wpa_s->p2p_long_listen = 0;
2292 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2294 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2295 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2296 (res->peer_config_timeout % 100) * 10000,
2297 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2301 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2304 struct wpa_supplicant *wpa_s = ctx;
2305 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2306 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2307 dev_passwd_id, go_intent);
2309 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2313 static void wpas_dev_found(void *ctx, const u8 *addr,
2314 const struct p2p_peer_info *info,
2317 #ifndef CONFIG_NO_STDOUT_DEBUG
2318 struct wpa_supplicant *wpa_s = ctx;
2319 char devtype[WPS_DEV_TYPE_BUFSIZE];
2320 char *wfd_dev_info_hex = NULL;
2322 #ifdef CONFIG_WIFI_DISPLAY
2323 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2324 WFD_SUBELEM_DEVICE_INFO);
2325 #endif /* CONFIG_WIFI_DISPLAY */
2327 if (info->p2ps_instance) {
2329 const u8 *buf = wpabuf_head(info->p2ps_instance);
2330 size_t len = wpabuf_len(info->p2ps_instance);
2337 if (len < 4 + 2 + 1)
2339 id = WPA_GET_LE32(buf);
2341 methods = WPA_GET_BE16(buf);
2344 if (str_len > len - 4 - 2 - 1)
2346 os_memcpy(str, buf, str_len);
2347 str[str_len] = '\0';
2349 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2351 wpa_msg_global(wpa_s, MSG_INFO,
2352 P2P_EVENT_DEVICE_FOUND MACSTR
2353 " p2p_dev_addr=" MACSTR
2354 " pri_dev_type=%s name='%s'"
2355 " config_methods=0x%x"
2358 " adv_id=%x asp_svc=%s%s",
2360 MAC2STR(info->p2p_device_addr),
2361 wps_dev_type_bin2str(
2363 devtype, sizeof(devtype)),
2364 info->device_name, methods,
2365 info->dev_capab, info->group_capab,
2367 info->vendor_elems ?
2368 " vendor_elems=1" : "");
2373 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2374 " p2p_dev_addr=" MACSTR
2375 " pri_dev_type=%s name='%s' config_methods=0x%x "
2376 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2377 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2378 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2380 info->device_name, info->config_methods,
2381 info->dev_capab, info->group_capab,
2382 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2383 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2384 info->vendor_elems ? " vendor_elems=1" : "",
2388 os_free(wfd_dev_info_hex);
2389 #endif /* CONFIG_NO_STDOUT_DEBUG */
2391 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2395 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2397 struct wpa_supplicant *wpa_s = ctx;
2399 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2400 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2402 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2406 static void wpas_find_stopped(void *ctx)
2408 struct wpa_supplicant *wpa_s = ctx;
2410 if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0)
2411 wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed");
2413 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2414 wpas_notify_p2p_find_stopped(wpa_s);
2418 struct wpas_p2p_listen_work {
2420 unsigned int duration;
2421 struct wpabuf *probe_resp_ie;
2425 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2429 wpabuf_free(lwork->probe_resp_ie);
2434 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2436 struct wpas_p2p_listen_work *lwork;
2438 if (!wpa_s->p2p_listen_work)
2441 lwork = wpa_s->p2p_listen_work->ctx;
2442 wpas_p2p_listen_work_free(lwork);
2443 radio_work_done(wpa_s->p2p_listen_work);
2444 wpa_s->p2p_listen_work = NULL;
2448 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2450 struct wpa_supplicant *wpa_s = work->wpa_s;
2451 struct wpas_p2p_listen_work *lwork = work->ctx;
2452 unsigned int duration;
2455 if (work->started) {
2456 wpa_s->p2p_listen_work = NULL;
2457 wpas_stop_listen(wpa_s);
2459 wpas_p2p_listen_work_free(lwork);
2463 wpa_s->p2p_listen_work = work;
2465 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2467 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2468 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2469 "report received Probe Request frames");
2470 wpas_p2p_listen_work_done(wpa_s);
2474 wpa_s->pending_listen_freq = lwork->freq;
2475 wpa_s->pending_listen_duration = lwork->duration;
2477 duration = lwork->duration;
2478 #ifdef CONFIG_TESTING_OPTIONS
2479 if (wpa_s->extra_roc_dur) {
2480 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2481 duration, duration + wpa_s->extra_roc_dur);
2482 duration += wpa_s->extra_roc_dur;
2484 #endif /* CONFIG_TESTING_OPTIONS */
2486 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2487 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2488 "to remain on channel (%u MHz) for Listen "
2489 "state", lwork->freq);
2490 wpas_p2p_listen_work_done(wpa_s);
2491 wpa_s->pending_listen_freq = 0;
2494 wpa_s->off_channel_freq = 0;
2495 wpa_s->roc_waiting_drv_freq = lwork->freq;
2499 static int wpas_start_listen(void *ctx, unsigned int freq,
2500 unsigned int duration,
2501 const struct wpabuf *probe_resp_ie)
2503 struct wpa_supplicant *wpa_s = ctx;
2504 struct wpas_p2p_listen_work *lwork;
2506 if (wpa_s->p2p_listen_work) {
2507 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2511 lwork = os_zalloc(sizeof(*lwork));
2515 lwork->duration = duration;
2516 if (probe_resp_ie) {
2517 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2518 if (lwork->probe_resp_ie == NULL) {
2519 wpas_p2p_listen_work_free(lwork);
2524 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2526 wpas_p2p_listen_work_free(lwork);
2534 static void wpas_stop_listen(void *ctx)
2536 struct wpa_supplicant *wpa_s = ctx;
2537 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2538 wpa_drv_cancel_remain_on_channel(wpa_s);
2539 wpa_s->off_channel_freq = 0;
2540 wpa_s->roc_waiting_drv_freq = 0;
2542 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2545 * Don't cancel Probe Request RX reporting for a connected P2P Client
2546 * handling Probe Request frames.
2548 if (!wpa_s->p2p_cli_probe)
2549 wpa_drv_probe_req_report(wpa_s, 0);
2551 wpas_p2p_listen_work_done(wpa_s);
2555 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2558 struct wpa_supplicant *wpa_s = ctx;
2559 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2564 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2565 const u8 *peer, const char *params,
2566 unsigned int generated_pin)
2568 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2569 " %08d%s", MAC2STR(peer), generated_pin, params);
2573 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2574 const u8 *peer, const char *params)
2576 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2577 "%s", MAC2STR(peer), params);
2581 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2582 const u8 *dev_addr, const u8 *pri_dev_type,
2583 const char *dev_name, u16 supp_config_methods,
2584 u8 dev_capab, u8 group_capab, const u8 *group_id,
2585 size_t group_id_len)
2587 struct wpa_supplicant *wpa_s = ctx;
2588 char devtype[WPS_DEV_TYPE_BUFSIZE];
2590 u8 empty_dev_type[8];
2591 unsigned int generated_pin = 0;
2592 struct wpa_supplicant *group = NULL;
2596 for (group = wpa_s->global->ifaces; group; group = group->next)
2598 struct wpa_ssid *s = group->current_ssid;
2600 s->mode == WPAS_MODE_P2P_GO &&
2601 group_id_len - ETH_ALEN == s->ssid_len &&
2602 os_memcmp(group_id + ETH_ALEN, s->ssid,
2608 if (pri_dev_type == NULL) {
2609 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2610 pri_dev_type = empty_dev_type;
2612 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2613 " pri_dev_type=%s name='%s' config_methods=0x%x "
2614 "dev_capab=0x%x group_capab=0x%x%s%s",
2616 wps_dev_type_bin2str(pri_dev_type, devtype,
2618 dev_name, supp_config_methods, dev_capab, group_capab,
2619 group ? " group=" : "",
2620 group ? group->ifname : "");
2621 if (os_snprintf_error(sizeof(params), res))
2622 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2623 params[sizeof(params) - 1] = '\0';
2625 if (config_methods & WPS_CONFIG_DISPLAY) {
2626 if (wps_generate_pin(&generated_pin) < 0) {
2627 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2628 wpas_notify_p2p_provision_discovery(
2629 wpa_s, peer, 0 /* response */,
2630 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2633 wpas_prov_disc_local_display(wpa_s, peer, params,
2635 } else if (config_methods & WPS_CONFIG_KEYPAD)
2636 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2637 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2638 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2639 MACSTR "%s", MAC2STR(peer), params);
2641 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2642 P2P_PROV_DISC_SUCCESS,
2643 config_methods, generated_pin);
2647 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2649 struct wpa_supplicant *wpa_s = ctx;
2650 unsigned int generated_pin = 0;
2653 if (wpa_s->pending_pd_before_join &&
2654 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2655 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2656 wpa_s->pending_pd_before_join = 0;
2657 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2658 "join-existing-group operation");
2659 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2663 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2664 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2667 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2668 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2669 if (os_snprintf_error(sizeof(params), res))
2670 params[sizeof(params) - 1] = '\0';
2674 if (config_methods & WPS_CONFIG_DISPLAY)
2675 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2676 else if (config_methods & WPS_CONFIG_KEYPAD) {
2677 if (wps_generate_pin(&generated_pin) < 0) {
2678 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2679 wpas_notify_p2p_provision_discovery(
2680 wpa_s, peer, 0 /* response */,
2681 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2684 wpas_prov_disc_local_display(wpa_s, peer, params,
2686 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2687 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2688 MACSTR "%s", MAC2STR(peer), params);
2690 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2691 P2P_PROV_DISC_SUCCESS,
2692 config_methods, generated_pin);
2696 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2697 enum p2p_prov_disc_status status,
2698 u32 adv_id, const u8 *adv_mac,
2699 const char *deferred_session_resp)
2701 struct wpa_supplicant *wpa_s = ctx;
2703 if (wpa_s->p2p_fallback_to_go_neg) {
2704 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2705 "failed - fall back to GO Negotiation");
2706 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
2707 P2P_EVENT_FALLBACK_TO_GO_NEG
2708 "reason=PD-failed");
2709 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2713 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2714 wpa_s->pending_pd_before_join = 0;
2715 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2716 "join-existing-group operation (no ACK for PD "
2718 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2722 if (adv_id && adv_mac && deferred_session_resp) {
2723 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2724 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2725 " deferred_session_resp='%s'",
2726 MAC2STR(peer), status, adv_id,
2727 deferred_session_resp);
2728 } else if (adv_id && adv_mac) {
2729 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2730 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2731 MAC2STR(peer), status, adv_id);
2733 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2734 " p2p_dev_addr=" MACSTR " status=%d",
2735 MAC2STR(peer), status);
2738 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2743 static int freq_included(struct wpa_supplicant *wpa_s,
2744 const struct p2p_channels *channels,
2747 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2748 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2754 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2756 unsigned int num = P2P_MAX_CHANNELS;
2760 p2p_go_dump_common_freqs(wpa_s);
2761 common_freqs = os_calloc(num, sizeof(int));
2765 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2767 wpa_dbg(wpa_s, MSG_DEBUG,
2768 "P2P: Failed to get group common freqs");
2769 os_free(common_freqs);
2773 os_free(wpa_s->p2p_group_common_freqs);
2774 wpa_s->p2p_group_common_freqs = common_freqs;
2775 wpa_s->p2p_group_common_freqs_num = num;
2776 p2p_go_dump_common_freqs(wpa_s);
2781 * Check if the given frequency is one of the possible operating frequencies
2782 * set after the completion of the GO Negotiation.
2784 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2788 p2p_go_dump_common_freqs(wpa_s);
2790 /* assume no restrictions */
2791 if (!wpa_s->p2p_group_common_freqs_num)
2794 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2795 if (wpa_s->p2p_group_common_freqs[i] == freq)
2802 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2803 struct sta_info *sta, void *ctx)
2805 int *ecsa_support = ctx;
2807 *ecsa_support &= sta->ecsa_supported;
2813 /* Check if all the peers support eCSA */
2814 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2816 int ecsa_support = 1;
2818 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2821 return ecsa_support;
2826 * Pick the best frequency to use from all the currently used frequencies.
2828 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2829 struct wpa_used_freq_data *freqs,
2834 /* find a candidate freq that is supported by P2P */
2835 for (c = 0; c < num; c++)
2836 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2842 /* once we have a candidate, try to find a 'better' one */
2843 for (i = c + 1; i < num; i++) {
2844 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2848 * 1. Infrastructure station interfaces have higher preference.
2849 * 2. P2P Clients have higher preference.
2852 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2857 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2860 return freqs[c].freq;
2864 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2865 const u8 *go_dev_addr, const u8 *ssid,
2866 size_t ssid_len, int *go, u8 *group_bssid,
2867 int *force_freq, int persistent_group,
2868 const struct p2p_channels *channels,
2871 struct wpa_supplicant *wpa_s = ctx;
2873 struct wpa_used_freq_data *freqs;
2874 struct wpa_supplicant *grp;
2877 if (!persistent_group) {
2878 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2879 " to join an active group (SSID: %s)",
2880 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2881 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2882 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2884 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2885 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2886 "authorized invitation");
2890 #ifdef CONFIG_WPS_NFC
2891 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2892 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2893 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2894 wpa_s->p2p_wps_method = WPS_NFC;
2895 wpa_s->pending_join_wps_method = WPS_NFC;
2896 os_memcpy(wpa_s->pending_join_dev_addr,
2897 go_dev_addr, ETH_ALEN);
2898 os_memcpy(wpa_s->pending_join_iface_addr,
2902 #endif /* CONFIG_WPS_NFC */
2905 * Do not accept the invitation automatically; notify user and
2908 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2911 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2913 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2914 "running persistent group");
2916 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2920 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2921 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2922 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2923 "invitation to re-invoke a persistent group");
2924 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2925 } else if (!wpa_s->conf->persistent_reconnect)
2926 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2928 for (s = wpa_s->conf->ssid; s; s = s->next) {
2929 if (s->disabled == 2 &&
2930 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2931 s->ssid_len == ssid_len &&
2932 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2937 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2938 " requested reinvocation of an unknown group",
2940 return P2P_SC_FAIL_UNKNOWN_GROUP;
2943 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2945 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2946 wpa_printf(MSG_DEBUG, "P2P: The only available "
2947 "interface is already in use - reject "
2949 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2951 if (wpa_s->p2p_mgmt)
2952 os_memcpy(group_bssid, wpa_s->parent->own_addr,
2955 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2956 } else if (s->mode == WPAS_MODE_P2P_GO) {
2958 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2960 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2961 "interface address for the group");
2962 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2964 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2969 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2972 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2973 sizeof(struct wpa_used_freq_data));
2975 int num_channels = wpa_s->num_multichan_concurrent;
2976 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2977 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2981 /* Get one of the frequencies currently in use */
2982 if (best_freq > 0) {
2983 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2984 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2986 if (wpa_s->num_multichan_concurrent < 2 ||
2987 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2988 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2989 *force_freq = best_freq;
2993 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2994 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2996 /* We are the client */
2997 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2998 "running a GO but we are capable of MCC, "
2999 "figure out the best channel to use");
3001 } else if (!freq_included(wpa_s, channels, *force_freq)) {
3002 /* We are the GO, and *force_freq is not in the
3004 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3005 "in intersection but we are capable of MCC, "
3006 "figure out the best channel to use",
3012 return P2P_SC_SUCCESS;
3016 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3017 const u8 *ssid, size_t ssid_len,
3018 const u8 *go_dev_addr, u8 status,
3021 struct wpa_supplicant *wpa_s = ctx;
3024 for (s = wpa_s->conf->ssid; s; s = s->next) {
3025 if (s->disabled == 2 &&
3026 s->ssid_len == ssid_len &&
3027 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3031 if (status == P2P_SC_SUCCESS) {
3032 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3033 " was accepted; op_freq=%d MHz, SSID=%s",
3034 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3036 int go = s->mode == WPAS_MODE_P2P_GO;
3038 wpa_msg_global(wpa_s, MSG_INFO,
3039 P2P_EVENT_INVITATION_ACCEPTED
3041 " persistent=%d freq=%d",
3042 MAC2STR(sa), s->id, op_freq);
3044 wpa_msg_global(wpa_s, MSG_INFO,
3045 P2P_EVENT_INVITATION_ACCEPTED
3048 MAC2STR(sa), s->id);
3050 wpas_p2p_group_add_persistent(
3051 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
3052 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
3055 wpa_s->user_initiated_pd = 0;
3056 wpa_msg_global(wpa_s, MSG_INFO,
3057 P2P_EVENT_INVITATION_ACCEPTED
3058 "sa=" MACSTR " go_dev_addr=" MACSTR
3059 " bssid=" MACSTR " unknown-network",
3060 MAC2STR(sa), MAC2STR(go_dev_addr),
3062 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3063 wpa_s->p2p_wps_method, 0, op_freq,
3069 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3070 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3071 " was rejected (status %u)", MAC2STR(sa), status);
3077 wpa_msg_global(wpa_s, MSG_INFO,
3078 P2P_EVENT_INVITATION_RECEIVED
3079 "sa=" MACSTR " go_dev_addr=" MACSTR
3080 " bssid=" MACSTR " unknown-network",
3081 MAC2STR(sa), MAC2STR(go_dev_addr),
3084 wpa_msg_global(wpa_s, MSG_INFO,
3085 P2P_EVENT_INVITATION_RECEIVED
3086 "sa=" MACSTR " go_dev_addr=" MACSTR
3088 MAC2STR(sa), MAC2STR(go_dev_addr));
3090 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3095 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3096 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3097 "sa=" MACSTR " persistent=%d freq=%d",
3098 MAC2STR(sa), s->id, op_freq);
3100 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3101 "sa=" MACSTR " persistent=%d",
3102 MAC2STR(sa), s->id);
3104 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3109 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3110 struct wpa_ssid *ssid,
3111 const u8 *peer, int inv)
3114 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3119 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3120 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3124 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3125 if (ssid->mode != WPAS_MODE_P2P_GO &&
3126 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3127 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3128 "due to invitation result", ssid->id);
3129 wpas_notify_network_removed(wpa_s, ssid);
3130 wpa_config_remove_network(wpa_s->conf, ssid->id);
3133 return; /* Peer not found in client list */
3136 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3137 "group %d client list%s",
3138 MAC2STR(peer), ssid->id,
3139 inv ? " due to invitation result" : "");
3140 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3141 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3142 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3143 ssid->num_p2p_clients--;
3144 if (p2p_wpa_s->conf->update_config &&
3145 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3146 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3150 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3153 struct wpa_ssid *ssid;
3155 wpa_s = wpa_s->global->p2p_invite_group;
3157 return; /* No known invitation group */
3158 ssid = wpa_s->current_ssid;
3159 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3160 !ssid->p2p_persistent_group)
3161 return; /* Not operating as a GO in persistent group */
3162 ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
3163 ssid->ssid, ssid->ssid_len);
3164 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3168 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3169 const struct p2p_channels *channels,
3170 const u8 *peer, int neg_freq,
3173 struct wpa_supplicant *wpa_s = ctx;
3174 struct wpa_ssid *ssid;
3178 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3179 "status=%d " MACSTR,
3180 status, MAC2STR(bssid));
3182 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3183 "status=%d ", status);
3185 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3187 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3188 status, MAC2STR(peer));
3189 if (wpa_s->pending_invite_ssid_id == -1) {
3190 struct wpa_supplicant *group_if =
3191 wpa_s->global->p2p_invite_group;
3193 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3194 wpas_remove_persistent_client(wpa_s, peer);
3197 * Invitation to an active group. If this is successful and we
3198 * are the GO, set the client wait to postpone some concurrent
3199 * operations and to allow provisioning and connection to happen
3202 if (status == P2P_SC_SUCCESS &&
3203 group_if && group_if->current_ssid &&
3204 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3205 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3206 #ifdef CONFIG_TESTING_OPTIONS
3207 if (group_if->p2p_go_csa_on_inv) {
3208 wpa_printf(MSG_DEBUG,
3209 "Testing: force P2P GO CSA after invitation");
3210 eloop_cancel_timeout(
3211 wpas_p2p_reconsider_moving_go,
3213 eloop_register_timeout(
3215 wpas_p2p_reconsider_moving_go,
3218 #endif /* CONFIG_TESTING_OPTIONS */
3223 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3224 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3225 "invitation exchange to indicate readiness for "
3229 if (status != P2P_SC_SUCCESS) {
3230 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3231 ssid = wpa_config_get_network(
3232 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3233 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3235 wpas_p2p_remove_pending_group_interface(wpa_s);
3239 ssid = wpa_config_get_network(wpa_s->conf,
3240 wpa_s->pending_invite_ssid_id);
3242 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3243 "data matching with invitation");
3248 * The peer could have missed our ctrl::ack frame for Invitation
3249 * Response and continue retransmitting the frame. To reduce the
3250 * likelihood of the peer not getting successful TX status for the
3251 * Invitation Response frame, wait a short time here before starting
3252 * the persistent group so that we will remain on the current channel to
3253 * acknowledge any possible retransmission from the peer.
3255 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3256 "starting persistent group");
3259 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3260 freq_included(wpa_s, channels, neg_freq))
3262 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3263 freq_included(wpa_s, channels, peer_oper_freq))
3264 freq = peer_oper_freq;
3268 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3269 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3270 wpas_p2p_group_add_persistent(wpa_s, ssid,
3271 ssid->mode == WPAS_MODE_P2P_GO,
3272 wpa_s->p2p_persistent_go_freq,
3274 wpa_s->p2p_go_vht_center_freq2,
3275 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3276 wpa_s->p2p_go_max_oper_chwidth,
3278 ssid->mode == WPAS_MODE_P2P_GO ?
3279 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3284 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3287 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3289 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3293 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3295 reg->channel[reg->channels] = chan;
3300 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3301 struct p2p_channels *chan,
3302 struct p2p_channels *cli_chan)
3306 wpa_s->global->p2p_24ghz_social_channels = 1;
3308 os_memset(cli_chan, 0, sizeof(*cli_chan));
3310 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3313 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3314 chan->reg_class[cla].reg_class = 81;
3315 chan->reg_class[cla].channels = 0;
3316 for (i = 0; i < 11; i++) {
3317 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3318 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3320 if (chan->reg_class[cla].channels)
3323 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3326 /* Operating class 115 - 5 GHz, channels 36-48 */
3327 chan->reg_class[cla].reg_class = 115;
3328 chan->reg_class[cla].channels = 0;
3329 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3330 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3331 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3332 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3333 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3334 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3335 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3336 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3337 if (chan->reg_class[cla].channels)
3340 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3343 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3344 chan->reg_class[cla].reg_class = 124;
3345 chan->reg_class[cla].channels = 0;
3346 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3347 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3348 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3349 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3350 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3351 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3352 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3353 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3354 if (chan->reg_class[cla].channels)
3357 chan->reg_classes = cla;
3362 static int has_channel(struct wpa_global *global,
3363 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3368 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3370 if (wpas_p2p_disallowed_freq(global, freq))
3373 for (i = 0; i < mode->num_channels; i++) {
3374 if (mode->channels[i].chan == chan) {
3376 *flags = mode->channels[i].flag;
3377 if (mode->channels[i].flag &
3378 (HOSTAPD_CHAN_DISABLED |
3379 HOSTAPD_CHAN_RADAR))
3381 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3391 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3392 struct hostapd_hw_modes *mode,
3395 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3398 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3401 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3403 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3404 * so the center channel is 6 channels away from the start/end.
3406 if (channel >= center_channels[i] - 6 &&
3407 channel <= center_channels[i] + 6)
3408 return center_channels[i];
3414 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3415 struct hostapd_hw_modes *mode,
3420 enum chan_allowed res, ret = ALLOWED;
3422 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3425 if (center_chan >= 58 && center_chan <= 138)
3426 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3428 /* check all the channels are available */
3429 for (i = 0; i < 4; i++) {
3430 int adj_chan = center_chan - 6 + i * 4;
3432 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3433 if (res == NOT_ALLOWED)
3438 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3440 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3442 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3444 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3452 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3453 struct hostapd_hw_modes *mode,
3456 u8 center_channels[] = { 50, 114 };
3459 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3462 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3464 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3465 * so the center channel is 14 channels away from the start/end.
3467 if (channel >= center_channels[i] - 14 &&
3468 channel <= center_channels[i] + 14)
3469 return center_channels[i];
3475 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3476 struct hostapd_hw_modes *mode,
3481 enum chan_allowed res, ret = ALLOWED;
3483 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3486 /* VHT 160 MHz uses DFS channels in most countries. */
3488 /* Check all the channels are available */
3489 for (i = 0; i < 8; i++) {
3490 int adj_chan = center_chan - 14 + i * 4;
3492 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3493 if (res == NOT_ALLOWED)
3499 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3501 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3503 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3505 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3507 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3509 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3511 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3513 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3521 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3522 struct hostapd_hw_modes *mode,
3526 enum chan_allowed res, res2;
3528 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3529 if (bw == BW40MINUS) {
3530 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3532 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3533 } else if (bw == BW40PLUS) {
3534 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3536 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3537 } else if (bw == BW80) {
3538 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3539 } else if (bw == BW160) {
3540 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3543 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3545 if (res == NO_IR || res2 == NO_IR)
3551 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3552 struct p2p_channels *chan,
3553 struct p2p_channels *cli_chan)
3555 struct hostapd_hw_modes *mode;
3556 int cla, op, cli_cla;
3558 if (wpa_s->hw.modes == NULL) {
3559 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3560 "of all supported channels; assume dualband "
3562 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3567 for (op = 0; global_op_class[op].op_class; op++) {
3568 const struct oper_class_map *o = &global_op_class[op];
3570 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3572 if (o->p2p == NO_P2P_SUPP)
3575 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3578 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3579 wpa_s->global->p2p_24ghz_social_channels = 1;
3580 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3581 enum chan_allowed res;
3582 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3583 if (res == ALLOWED) {
3585 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3587 reg = &chan->reg_class[cla];
3589 reg->reg_class = o->op_class;
3591 reg->channel[reg->channels] = ch;
3593 } else if (res == NO_IR &&
3594 wpa_s->conf->p2p_add_cli_chan) {
3595 if (cli_reg == NULL) {
3596 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3598 cli_reg = &cli_chan->reg_class[cli_cla];
3600 cli_reg->reg_class = o->op_class;
3602 cli_reg->channel[cli_reg->channels] = ch;
3603 cli_reg->channels++;
3607 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3608 reg->channel, reg->channels);
3611 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3612 cli_reg->channel, cli_reg->channels);
3616 chan->reg_classes = cla;
3617 cli_chan->reg_classes = cli_cla;
3623 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3624 struct hostapd_hw_modes *mode, u8 channel)
3627 enum chan_allowed ret;
3629 for (op = 0; global_op_class[op].op_class; op++) {
3630 const struct oper_class_map *o = &global_op_class[op];
3633 if (o->p2p == NO_P2P_SUPP)
3636 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3637 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3638 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3641 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3643 return (o->bw == BW40MINUS) ? -1 : 1;
3650 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3651 struct hostapd_hw_modes *mode, u8 channel)
3653 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3656 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3660 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3661 struct hostapd_hw_modes *mode, u8 channel)
3663 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3665 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3669 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3672 struct wpa_supplicant *wpa_s = ctx;
3674 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3675 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3681 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3685 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3686 const u8 *ssid, size_t ssid_len)
3688 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3689 struct wpa_ssid *s = wpa_s->current_ssid;
3692 if (s->mode != WPAS_MODE_P2P_GO &&
3693 s->mode != WPAS_MODE_AP &&
3694 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3696 if (s->ssid_len != ssid_len ||
3697 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3707 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3708 const u8 *peer_dev_addr)
3710 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3711 struct wpa_ssid *ssid = wpa_s->current_ssid;
3712 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3714 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3722 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3724 struct wpa_supplicant *wpa_s = ctx;
3726 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3730 static int wpas_is_concurrent_session_active(void *ctx)
3732 struct wpa_supplicant *wpa_s = ctx;
3733 struct wpa_supplicant *ifs;
3735 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3738 if (ifs->wpa_state > WPA_ASSOCIATED)
3745 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3747 struct wpa_supplicant *wpa_s = ctx;
3748 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3752 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3753 const char *conf_p2p_dev)
3755 struct wpa_interface iface;
3756 struct wpa_supplicant *p2pdev_wpa_s;
3758 char force_name[100];
3761 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3763 if (os_snprintf_error(sizeof(ifname), ret))
3765 force_name[0] = '\0';
3766 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3767 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3768 force_name, wpa_s->pending_interface_addr, NULL);
3770 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3773 os_strlcpy(wpa_s->pending_interface_name, ifname,
3774 sizeof(wpa_s->pending_interface_name));
3776 os_memset(&iface, 0, sizeof(iface));
3778 iface.ifname = wpa_s->pending_interface_name;
3779 iface.driver = wpa_s->driver->name;
3780 iface.driver_param = wpa_s->conf->driver_param;
3783 * If a P2P Device configuration file was given, use it as the interface
3784 * configuration file (instead of using parent's configuration file.
3787 iface.confname = conf_p2p_dev;
3788 iface.ctrl_interface = NULL;
3790 iface.confname = wpa_s->confname;
3791 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3794 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3795 if (!p2pdev_wpa_s) {
3796 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3800 p2pdev_wpa_s->p2pdev = p2pdev_wpa_s;
3801 wpa_s->pending_interface_name[0] = '\0';
3806 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3807 const u8 *noa, size_t noa_len)
3809 struct wpa_supplicant *wpa_s, *intf = ctx;
3812 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3813 if (wpa_s->waiting_presence_resp)
3817 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3820 wpa_s->waiting_presence_resp = 0;
3822 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3823 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3824 " status=%u noa=%s", MAC2STR(src), status, hex);
3828 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3829 size_t ssid_len, u8 *go_dev_addr,
3830 u8 *ret_ssid, size_t *ret_ssid_len,
3831 u8 *intended_iface_addr)
3833 struct wpa_supplicant *wpa_s = ctx;
3836 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3838 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3839 *ret_ssid_len = s->ssid_len;
3840 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3842 if (s->mode != WPAS_MODE_P2P_GO) {
3843 os_memset(intended_iface_addr, 0, ETH_ALEN);
3844 } else if (wpas_p2p_create_iface(wpa_s)) {
3845 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3848 os_memcpy(intended_iface_addr,
3849 wpa_s->pending_interface_addr, ETH_ALEN);
3851 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3861 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3862 u8 *ssid, size_t *ssid_len, int *group_iface,
3865 struct wpa_supplicant *wpa_s = ctx;
3866 struct wpa_supplicant *go;
3870 * group_iface will be set to 1 only if a dedicated interface for P2P
3871 * role is required. First, we try to reuse an active GO. However,
3872 * if it is not present, we will try to reactivate an existing
3873 * persistent group and set group_iface to 1, so the caller will know
3874 * that the pending interface should be used.
3881 go = wpas_p2p_get_go_group(wpa_s);
3883 s = wpas_p2p_get_persistent_go(wpa_s);
3884 *group_iface = wpas_p2p_create_iface(wpa_s);
3886 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3890 s = go->current_ssid;
3891 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3893 *freq = go->assoc_freq;
3896 os_memcpy(ssid, s->ssid, s->ssid_len);
3897 *ssid_len = s->ssid_len;
3903 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3904 const u8 *ssid, size_t ssid_len)
3906 struct wpa_supplicant *wpa_s = ctx;
3908 int save_config = 0;
3911 /* Start with our first choice of Persistent Groups */
3912 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3913 if (go && ssid && ssid_len &&
3914 s->ssid_len == ssid_len &&
3915 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3916 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3919 /* Remove stale persistent group */
3920 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3921 wpa_config_remove_network(wpa_s->conf, s->id);
3926 for (i = 0; i < s->num_p2p_clients; i++) {
3927 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3928 peer, ETH_ALEN) != 0)
3931 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3932 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3933 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3936 s->num_p2p_clients--;
3941 p2p_config_write(wpa_s);
3943 /* Return TRUE if valid SSID remains */
3948 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3949 const u8 *feat_cap, size_t feat_cap_len)
3951 static const char pref[] = " feature_cap=";
3957 * We expect a feature capability to contain at least one byte to be
3958 * reported. The string buffer provided by the caller function is
3959 * expected to be big enough to contain all bytes of the attribute for
3960 * known specifications. This function truncates the reported bytes if
3961 * the feature capability data exceeds the string buffer size.
3963 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3966 os_memcpy(buf, pref, sizeof(pref));
3967 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3968 buf_len - sizeof(pref) + 1,
3969 feat_cap, feat_cap_len);
3971 if (ret != (2 * (int) feat_cap_len))
3972 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3976 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3977 const u8 *adv_mac, const u8 *ses_mac,
3978 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3979 u8 conncap, int passwd_id,
3980 const u8 *persist_ssid,
3981 size_t persist_ssid_size, int response_done,
3982 int prov_start, const char *session_info,
3983 const u8 *feat_cap, size_t feat_cap_len,
3985 const u8 *group_ssid, size_t group_ssid_len)
3987 struct wpa_supplicant *wpa_s = ctx;
3989 struct wpa_ssid *persistent_go, *stale, *s = NULL;
3990 int save_config = 0;
3991 struct wpa_supplicant *go_wpa_s;
3992 char feat_cap_str[256];
3997 os_memset(mac, 0, ETH_ALEN);
4005 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
4006 feat_cap, feat_cap_len);
4009 if (session_info == NULL) {
4010 wpa_msg_global(wpa_s, MSG_INFO,
4011 P2P_EVENT_P2PS_PROVISION_START MACSTR
4012 " adv_id=%x conncap=%x"
4014 " session=%x mac=" MACSTR
4015 " dev_passwd_id=%d%s",
4016 MAC2STR(dev), adv_id, conncap,
4018 ses_id, MAC2STR(ses_mac),
4019 passwd_id, feat_cap_str);
4021 wpa_msg_global(wpa_s, MSG_INFO,
4022 P2P_EVENT_P2PS_PROVISION_START MACSTR
4023 " adv_id=%x conncap=%x"
4025 " session=%x mac=" MACSTR
4026 " dev_passwd_id=%d info='%s'%s",
4027 MAC2STR(dev), adv_id, conncap,
4029 ses_id, MAC2STR(ses_mac),
4030 passwd_id, session_info, feat_cap_str);
4035 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4036 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4038 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4039 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4040 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4042 if (persistent_go && !persistent_go->num_p2p_clients) {
4043 /* remove empty persistent GO */
4044 wpa_config_remove_network(wpa_s->conf,
4048 wpa_msg_global(wpa_s, MSG_INFO,
4049 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4051 " adv_id=%x adv_mac=" MACSTR
4052 " session=%x mac=" MACSTR "%s",
4053 MAC2STR(dev), status,
4054 adv_id, MAC2STR(adv_mac),
4055 ses_id, MAC2STR(ses_mac), feat_cap_str);
4059 /* Clean up stale persistent groups with this device */
4060 if (persist_ssid && persist_ssid_size)
4061 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4064 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4065 is_zero_ether_addr(grp_mac)) {
4066 wpa_dbg(wpa_s, MSG_ERROR,
4067 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4072 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4076 if (s && s->ssid_len == stale->ssid_len &&
4077 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4078 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4081 /* Remove stale persistent group */
4082 if (stale->mode != WPAS_MODE_P2P_GO ||
4083 stale->num_p2p_clients <= 1) {
4084 wpa_config_remove_network(wpa_s->conf, stale->id);
4088 for (i = 0; i < stale->num_p2p_clients; i++) {
4089 if (os_memcmp(stale->p2p_client_list +
4091 dev, ETH_ALEN) == 0) {
4092 os_memmove(stale->p2p_client_list +
4094 stale->p2p_client_list +
4096 (stale->num_p2p_clients -
4101 stale->num_p2p_clients--;
4107 p2p_config_write(wpa_s);
4110 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4111 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4113 if (persistent_go && s != persistent_go &&
4114 !persistent_go->num_p2p_clients) {
4115 /* remove empty persistent GO */
4116 wpa_config_remove_network(wpa_s->conf,
4121 wpa_msg_global(wpa_s, MSG_INFO,
4122 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4124 " adv_id=%x adv_mac=" MACSTR
4125 " session=%x mac=" MACSTR
4127 MAC2STR(dev), status,
4128 adv_id, MAC2STR(adv_mac),
4129 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4133 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4135 * We need to copy the interface name. Simply saving a
4136 * pointer isn't enough, since if we use pending_interface_name
4137 * it will be overwritten when the group is added.
4139 char go_ifname[100];
4141 go_ifname[0] = '\0';
4143 wpa_s->global->pending_p2ps_group = 1;
4144 wpa_s->global->pending_p2ps_group_freq = freq;
4146 if (!wpas_p2p_create_iface(wpa_s))
4147 os_memcpy(go_ifname, wpa_s->ifname,
4149 else if (wpa_s->pending_interface_name[0])
4150 os_memcpy(go_ifname,
4151 wpa_s->pending_interface_name,
4154 if (!go_ifname[0]) {
4155 wpas_p2ps_prov_complete(
4156 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4157 dev, adv_mac, ses_mac,
4158 grp_mac, adv_id, ses_id, 0, 0,
4159 NULL, 0, 0, 0, NULL, NULL, 0, 0,
4164 /* If PD Resp complete, start up the GO */
4165 if (response_done && persistent_go) {
4166 wpas_p2p_group_add_persistent(
4167 wpa_s, persistent_go,
4168 0, 0, freq, 0, 0, 0, 0, NULL,
4169 persistent_go->mode ==
4171 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4173 } else if (response_done) {
4174 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4177 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4178 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4180 wpa_s->p2ps_method_config_any = 1;
4182 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4183 os_memcpy(go_ifname, go_wpa_s->ifname,
4186 if (is_zero_ether_addr(grp_mac)) {
4187 wpa_dbg(go_wpa_s, MSG_DEBUG,
4188 "P2P: Setting PIN-1 for ANY");
4189 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4190 "12345670", NULL, 0,
4193 wpa_dbg(go_wpa_s, MSG_DEBUG,
4194 "P2P: Setting PIN-1 for " MACSTR,
4196 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4197 "12345670", NULL, 0,
4201 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4202 wpa_s->p2ps_method_config_any = 1;
4205 wpa_msg_global(wpa_s, MSG_INFO,
4206 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4207 " status=%d conncap=%x"
4208 " adv_id=%x adv_mac=" MACSTR
4209 " session=%x mac=" MACSTR
4210 " dev_passwd_id=%d go=%s%s",
4211 MAC2STR(dev), status, conncap,
4212 adv_id, MAC2STR(adv_mac),
4213 ses_id, MAC2STR(ses_mac),
4214 passwd_id, go_ifname, feat_cap_str);
4218 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4219 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4221 if (persistent_go && !persistent_go->num_p2p_clients) {
4222 /* remove empty persistent GO */
4223 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4226 if (conncap == P2PS_SETUP_CLIENT) {
4227 char ssid_hex[32 * 2 + 1];
4230 wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4231 group_ssid, group_ssid_len);
4234 wpa_msg_global(wpa_s, MSG_INFO,
4235 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4236 " status=%d conncap=%x"
4237 " adv_id=%x adv_mac=" MACSTR
4238 " session=%x mac=" MACSTR
4239 " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4240 MAC2STR(dev), status, conncap,
4241 adv_id, MAC2STR(adv_mac),
4242 ses_id, MAC2STR(ses_mac),
4243 passwd_id, MAC2STR(grp_mac), feat_cap_str,
4244 group_ssid ? " group_ssid=" : "", ssid_hex);
4246 wpa_msg_global(wpa_s, MSG_INFO,
4247 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4248 " status=%d conncap=%x"
4249 " adv_id=%x adv_mac=" MACSTR
4250 " session=%x mac=" MACSTR
4251 " dev_passwd_id=%d%s",
4252 MAC2STR(dev), status, conncap,
4253 adv_id, MAC2STR(adv_mac),
4254 ses_id, MAC2STR(ses_mac),
4255 passwd_id, feat_cap_str);
4260 static int _wpas_p2p_in_progress(void *ctx)
4262 struct wpa_supplicant *wpa_s = ctx;
4263 return wpas_p2p_in_progress(wpa_s);
4267 static int wpas_prov_disc_resp_cb(void *ctx)
4269 struct wpa_supplicant *wpa_s = ctx;
4270 struct wpa_ssid *persistent_go;
4273 if (!wpa_s->global->pending_p2ps_group)
4276 freq = wpa_s->global->pending_p2ps_group_freq;
4277 wpa_s->global->pending_p2ps_group_freq = 0;
4278 wpa_s->global->pending_p2ps_group = 0;
4280 if (wpas_p2p_get_go_group(wpa_s))
4282 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4284 if (persistent_go) {
4285 wpas_p2p_group_add_persistent(
4286 wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4287 persistent_go->mode == WPAS_MODE_P2P_GO ?
4288 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4290 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4297 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4299 unsigned int *freq_list)
4301 struct wpa_supplicant *wpa_s = ctx;
4303 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4304 WPA_IF_P2P_CLIENT, len, freq_list);
4309 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4310 * @global: Pointer to global data from wpa_supplicant_init()
4311 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4312 * Returns: 0 on success, -1 on failure
4314 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4316 struct p2p_config p2p;
4319 if (wpa_s->conf->p2p_disabled)
4322 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4328 os_memset(&p2p, 0, sizeof(p2p));
4330 p2p.debug_print = wpas_p2p_debug_print;
4331 p2p.p2p_scan = wpas_p2p_scan;
4332 p2p.send_action = wpas_send_action;
4333 p2p.send_action_done = wpas_send_action_done;
4334 p2p.go_neg_completed = wpas_go_neg_completed;
4335 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4336 p2p.dev_found = wpas_dev_found;
4337 p2p.dev_lost = wpas_dev_lost;
4338 p2p.find_stopped = wpas_find_stopped;
4339 p2p.start_listen = wpas_start_listen;
4340 p2p.stop_listen = wpas_stop_listen;
4341 p2p.send_probe_resp = wpas_send_probe_resp;
4342 p2p.sd_request = wpas_sd_request;
4343 p2p.sd_response = wpas_sd_response;
4344 p2p.prov_disc_req = wpas_prov_disc_req;
4345 p2p.prov_disc_resp = wpas_prov_disc_resp;
4346 p2p.prov_disc_fail = wpas_prov_disc_fail;
4347 p2p.invitation_process = wpas_invitation_process;
4348 p2p.invitation_received = wpas_invitation_received;
4349 p2p.invitation_result = wpas_invitation_result;
4350 p2p.get_noa = wpas_get_noa;
4351 p2p.go_connected = wpas_go_connected;
4352 p2p.presence_resp = wpas_presence_resp;
4353 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4354 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4355 p2p.get_persistent_group = wpas_get_persistent_group;
4356 p2p.get_go_info = wpas_get_go_info;
4357 p2p.remove_stale_groups = wpas_remove_stale_groups;
4358 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4359 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4360 p2p.p2ps_group_capability = p2ps_group_capability;
4361 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4363 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4364 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4365 p2p.dev_name = wpa_s->conf->device_name;
4366 p2p.manufacturer = wpa_s->conf->manufacturer;
4367 p2p.model_name = wpa_s->conf->model_name;
4368 p2p.model_number = wpa_s->conf->model_number;
4369 p2p.serial_number = wpa_s->conf->serial_number;
4371 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4372 p2p.config_methods = wpa_s->wps->config_methods;
4375 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4376 wpa_printf(MSG_ERROR,
4377 "P2P: Failed to configure supported channel list");
4381 if (wpa_s->conf->p2p_listen_reg_class &&
4382 wpa_s->conf->p2p_listen_channel) {
4383 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4384 p2p.channel = wpa_s->conf->p2p_listen_channel;
4385 p2p.channel_forced = 1;
4388 * Pick one of the social channels randomly as the listen
4391 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4392 &p2p.channel) != 0) {
4393 wpa_printf(MSG_INFO,
4394 "P2P: No social channels supported by the driver - do not enable P2P");
4397 p2p.channel_forced = 0;
4399 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4400 p2p.reg_class, p2p.channel);
4402 if (wpa_s->conf->p2p_oper_reg_class &&
4403 wpa_s->conf->p2p_oper_channel) {
4404 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4405 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4406 p2p.cfg_op_channel = 1;
4407 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4408 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4412 * Use random operation channel from 2.4 GHz band social
4413 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4414 * other preference is indicated.
4416 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4417 &p2p.op_channel) != 0) {
4418 wpa_printf(MSG_ERROR,
4419 "P2P: Failed to select random social channel as operation channel");
4422 p2p.cfg_op_channel = 0;
4423 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4424 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4427 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4428 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4429 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4432 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4433 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4434 p2p.country[2] = 0x04;
4436 os_memcpy(p2p.country, "XX\x04", 3);
4438 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4441 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4442 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4443 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4445 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4446 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4448 p2p.max_peers = 100;
4450 if (wpa_s->conf->p2p_ssid_postfix) {
4451 p2p.ssid_postfix_len =
4452 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4453 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4454 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4455 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4456 p2p.ssid_postfix_len);
4459 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4461 p2p.max_listen = wpa_s->max_remain_on_chan;
4463 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4464 wpa_s->conf->p2p_passphrase_len <= 63)
4465 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4467 p2p.passphrase_len = 8;
4469 global->p2p = p2p_init(&p2p);
4470 if (global->p2p == NULL)
4472 global->p2p_init_wpa_s = wpa_s;
4474 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4475 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4477 p2p_add_wps_vendor_extension(
4478 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4481 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4488 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4489 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4491 * This function deinitialize per-interface P2P data.
4493 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4495 if (wpa_s->driver && wpa_s->drv_priv)
4496 wpa_drv_probe_req_report(wpa_s, 0);
4498 if (wpa_s->go_params) {
4499 /* Clear any stored provisioning info */
4500 p2p_clear_provisioning_info(
4502 wpa_s->go_params->peer_device_addr);
4505 os_free(wpa_s->go_params);
4506 wpa_s->go_params = NULL;
4507 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4508 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4509 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4510 wpa_s->p2p_long_listen = 0;
4511 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4512 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4513 wpas_p2p_remove_pending_group_interface(wpa_s);
4514 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4515 wpas_p2p_listen_work_done(wpa_s);
4516 if (wpa_s->p2p_send_action_work) {
4517 os_free(wpa_s->p2p_send_action_work->ctx);
4518 radio_work_done(wpa_s->p2p_send_action_work);
4519 wpa_s->p2p_send_action_work = NULL;
4521 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4523 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4524 wpa_s->p2p_oob_dev_pw = NULL;
4526 os_free(wpa_s->p2p_group_common_freqs);
4527 wpa_s->p2p_group_common_freqs = NULL;
4528 wpa_s->p2p_group_common_freqs_num = 0;
4530 /* TODO: remove group interface from the driver if this wpa_s instance
4531 * is on top of a P2P group interface */
4536 * wpas_p2p_deinit_global - Deinitialize global P2P module
4537 * @global: Pointer to global data from wpa_supplicant_init()
4539 * This function deinitializes the global (per device) P2P module.
4541 static void wpas_p2p_deinit_global(struct wpa_global *global)
4543 struct wpa_supplicant *wpa_s, *tmp;
4545 wpa_s = global->ifaces;
4547 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4549 /* Remove remaining P2P group interfaces */
4550 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4551 wpa_s = wpa_s->next;
4553 tmp = global->ifaces;
4556 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4561 /* Disconnect from the P2P group and deinit the interface */
4562 wpas_p2p_disconnect(tmp);
4566 * Deinit GO data on any possibly remaining interface (if main
4567 * interface is used as GO).
4569 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4570 if (wpa_s->ap_iface)
4571 wpas_p2p_group_deinit(wpa_s);
4574 p2p_deinit(global->p2p);
4576 global->p2p_init_wpa_s = NULL;
4580 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4582 if (wpa_s->conf->p2p_no_group_iface)
4583 return 0; /* separate interface disabled per configuration */
4584 if (wpa_s->drv_flags &
4585 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4586 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4587 return 1; /* P2P group requires a new interface in every case
4589 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4590 return 0; /* driver does not support concurrent operations */
4591 if (wpa_s->global->ifaces->next)
4592 return 1; /* more that one interface already in use */
4593 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4594 return 1; /* this interface is already in use */
4599 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4600 const u8 *peer_addr,
4601 enum p2p_wps_method wps_method,
4602 int go_intent, const u8 *own_interface_addr,
4603 unsigned int force_freq, int persistent_group,
4604 struct wpa_ssid *ssid, unsigned int pref_freq)
4606 if (persistent_group && wpa_s->conf->persistent_reconnect)
4607 persistent_group = 2;
4610 * Increase GO config timeout if HT40 is used since it takes some time
4611 * to scan channels for coex purposes before the BSS can be started.
4613 p2p_set_config_timeout(wpa_s->global->p2p,
4614 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4616 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4617 go_intent, own_interface_addr, force_freq,
4618 persistent_group, ssid ? ssid->ssid : NULL,
4619 ssid ? ssid->ssid_len : 0,
4620 wpa_s->p2p_pd_before_go_neg, pref_freq,
4621 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4626 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4627 const u8 *peer_addr,
4628 enum p2p_wps_method wps_method,
4629 int go_intent, const u8 *own_interface_addr,
4630 unsigned int force_freq, int persistent_group,
4631 struct wpa_ssid *ssid, unsigned int pref_freq)
4633 if (persistent_group && wpa_s->conf->persistent_reconnect)
4634 persistent_group = 2;
4636 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4637 go_intent, own_interface_addr, force_freq,
4638 persistent_group, ssid ? ssid->ssid : NULL,
4639 ssid ? ssid->ssid_len : 0, pref_freq,
4640 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4645 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4647 wpa_s->p2p_join_scan_count++;
4648 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4649 wpa_s->p2p_join_scan_count);
4650 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4651 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4652 " for join operationg - stop join attempt",
4653 MAC2STR(wpa_s->pending_join_iface_addr));
4654 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4655 if (wpa_s->p2p_auto_pd) {
4656 wpa_s->p2p_auto_pd = 0;
4657 wpa_msg_global(wpa_s, MSG_INFO,
4658 P2P_EVENT_PROV_DISC_FAILURE
4659 " p2p_dev_addr=" MACSTR " status=N/A",
4660 MAC2STR(wpa_s->pending_join_dev_addr));
4663 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4664 P2P_EVENT_GROUP_FORMATION_FAILURE);
4665 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4670 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4673 unsigned int num, i;
4674 struct wpa_used_freq_data *freqs;
4676 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4677 /* Multiple channels are supported and not all are in use */
4681 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4682 sizeof(struct wpa_used_freq_data));
4686 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4687 wpa_s->num_multichan_concurrent);
4689 for (i = 0; i < num; i++) {
4690 if (freqs[i].freq == freq) {
4691 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4698 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4707 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4708 const u8 *peer_dev_addr)
4710 struct wpa_bss *bss;
4713 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4716 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4717 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4722 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4724 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4725 "%ld.%06ld (%supdated in last scan)",
4726 bss->last_update.sec, bss->last_update.usec,
4727 updated ? "": "not ");
4733 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4734 struct wpa_scan_results *scan_res)
4736 struct wpa_bss *bss = NULL;
4738 u8 iface_addr[ETH_ALEN];
4740 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4742 if (wpa_s->global->p2p_disabled)
4745 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4746 scan_res ? (int) scan_res->num : -1,
4747 wpa_s->p2p_auto_join ? "auto_" : "");
4750 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4752 if (wpa_s->p2p_auto_pd) {
4753 int join = wpas_p2p_peer_go(wpa_s,
4754 wpa_s->pending_join_dev_addr);
4756 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4757 wpa_s->auto_pd_scan_retry++;
4758 bss = wpa_bss_get_bssid_latest(
4759 wpa_s, wpa_s->pending_join_dev_addr);
4762 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4763 "the peer " MACSTR " at %d MHz",
4764 wpa_s->auto_pd_scan_retry,
4766 pending_join_dev_addr),
4768 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4776 wpa_s->p2p_auto_pd = 0;
4777 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4778 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4779 MAC2STR(wpa_s->pending_join_dev_addr), join);
4780 if (p2p_prov_disc_req(wpa_s->global->p2p,
4781 wpa_s->pending_join_dev_addr, NULL,
4782 wpa_s->pending_pd_config_methods, join,
4783 0, wpa_s->user_initiated_pd) < 0) {
4784 wpa_s->p2p_auto_pd = 0;
4785 wpa_msg_global(wpa_s, MSG_INFO,
4786 P2P_EVENT_PROV_DISC_FAILURE
4787 " p2p_dev_addr=" MACSTR " status=N/A",
4788 MAC2STR(wpa_s->pending_join_dev_addr));
4793 if (wpa_s->p2p_auto_join) {
4794 int join = wpas_p2p_peer_go(wpa_s,
4795 wpa_s->pending_join_dev_addr);
4797 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4798 "running a GO -> use GO Negotiation");
4799 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4800 P2P_EVENT_FALLBACK_TO_GO_NEG
4801 "reason=peer-not-running-GO");
4802 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4803 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4804 wpa_s->p2p_persistent_group, 0, 0, 0,
4805 wpa_s->p2p_go_intent,
4806 wpa_s->p2p_connect_freq,
4807 wpa_s->p2p_go_vht_center_freq2,
4808 wpa_s->p2p_persistent_id,
4809 wpa_s->p2p_pd_before_go_neg,
4812 wpa_s->p2p_go_max_oper_chwidth,
4817 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4818 "try to join the group", join ? "" :
4821 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4822 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4823 wpa_s->p2p_fallback_to_go_neg = 1;
4827 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4828 wpa_s->pending_join_iface_addr);
4830 p2p_get_interface_addr(wpa_s->global->p2p,
4831 wpa_s->pending_join_dev_addr,
4833 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4834 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4835 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4836 "address for join from " MACSTR " to " MACSTR
4837 " based on newly discovered P2P peer entry",
4838 MAC2STR(wpa_s->pending_join_iface_addr),
4839 MAC2STR(iface_addr));
4840 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4843 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4844 wpa_s->pending_join_iface_addr);
4847 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4848 "from P2P peer table: %d MHz", freq);
4850 if (wpa_s->p2p_join_ssid_len) {
4851 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4852 MACSTR " and SSID %s",
4853 MAC2STR(wpa_s->pending_join_iface_addr),
4854 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4855 wpa_s->p2p_join_ssid_len));
4856 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4857 wpa_s->p2p_join_ssid,
4858 wpa_s->p2p_join_ssid_len);
4860 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4861 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4862 bss = wpa_bss_get_bssid_latest(wpa_s,
4863 wpa_s->pending_join_iface_addr);
4866 u8 dev_addr[ETH_ALEN];
4869 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4870 "from BSS table: %d MHz (SSID %s)", freq,
4871 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4872 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4874 os_memcmp(wpa_s->pending_join_dev_addr,
4875 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4876 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4878 wpa_printf(MSG_DEBUG,
4879 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4881 MAC2STR(wpa_s->pending_join_dev_addr));
4882 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4889 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4890 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4891 P2P_EVENT_GROUP_FORMATION_FAILURE
4892 "reason=FREQ_CONFLICT");
4893 wpas_notify_p2p_group_formation_failure(
4894 wpa_s, "FREQ_CONFLICT");
4898 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4899 "prior to joining an existing group (GO " MACSTR
4901 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4902 wpa_s->pending_pd_before_join = 1;
4904 switch (wpa_s->pending_join_wps_method) {
4905 case WPS_PIN_DISPLAY:
4906 method = WPS_CONFIG_KEYPAD;
4908 case WPS_PIN_KEYPAD:
4909 method = WPS_CONFIG_DISPLAY;
4912 method = WPS_CONFIG_PUSHBUTTON;
4915 method = WPS_CONFIG_P2PS;
4922 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4923 wpa_s->pending_join_dev_addr) ==
4926 * We have already performed provision discovery for
4927 * joining the group. Proceed directly to join
4928 * operation without duplicated provision discovery. */
4929 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4930 "with " MACSTR " already done - proceed to "
4932 MAC2STR(wpa_s->pending_join_dev_addr));
4933 wpa_s->pending_pd_before_join = 0;
4937 if (p2p_prov_disc_req(wpa_s->global->p2p,
4938 wpa_s->pending_join_dev_addr,
4940 freq, wpa_s->user_initiated_pd) < 0) {
4941 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4942 "Discovery Request before joining an "
4944 wpa_s->pending_pd_before_join = 0;
4950 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4951 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4952 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4953 wpas_p2p_check_join_scan_limit(wpa_s);
4957 /* Start join operation immediately */
4958 wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4959 wpa_s->p2p_join_ssid_len);
4963 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4964 const u8 *ssid, size_t ssid_len)
4967 struct wpa_driver_scan_params params;
4968 struct wpabuf *wps_ie, *ies;
4970 int freqs[2] = { 0, 0 };
4973 os_memset(¶ms, 0, sizeof(params));
4975 /* P2P Wildcard SSID */
4976 params.num_ssids = 1;
4977 if (ssid && ssid_len) {
4978 params.ssids[0].ssid = ssid;
4979 params.ssids[0].ssid_len = ssid_len;
4980 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4981 wpa_s->p2p_join_ssid_len = ssid_len;
4983 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4984 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4985 wpa_s->p2p_join_ssid_len = 0;
4988 wpa_s->wps->dev.p2p = 1;
4989 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4990 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4992 if (wps_ie == NULL) {
4993 wpas_p2p_scan_res_join(wpa_s, NULL);
5000 * If freq is not provided, check the operating freq of the GO
5001 * and use a single channel scan on if possible.
5003 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
5004 wpa_s->pending_join_iface_addr);
5010 params.freqs = freqs;
5013 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
5014 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
5016 wpabuf_free(wps_ie);
5017 wpas_p2p_scan_res_join(wpa_s, NULL);
5020 wpabuf_put_buf(ies, wps_ie);
5021 wpabuf_free(wps_ie);
5023 bands = wpas_get_bands(wpa_s, freqs);
5024 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
5026 params.p2p_probe = 1;
5027 params.extra_ies = wpabuf_head(ies);
5028 params.extra_ies_len = wpabuf_len(ies);
5030 if (wpa_s->clear_driver_scan_cache) {
5031 wpa_printf(MSG_DEBUG,
5032 "Request driver to clear scan cache due to local BSS flush");
5033 params.only_new_results = 1;
5037 * Run a scan to update BSS table and start Provision Discovery once
5038 * the new scan results become available.
5040 ret = wpa_drv_scan(wpa_s, ¶ms);
5042 os_get_reltime(&wpa_s->scan_trigger_time);
5043 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5044 wpa_s->own_scan_requested = 1;
5045 wpa_s->clear_driver_scan_cache = 0;
5051 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5053 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5054 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5055 wpas_p2p_check_join_scan_limit(wpa_s);
5060 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5062 struct wpa_supplicant *wpa_s = eloop_ctx;
5063 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5067 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5068 const u8 *dev_addr, enum p2p_wps_method wps_method,
5069 int auto_join, int op_freq,
5070 const u8 *ssid, size_t ssid_len)
5072 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5073 MACSTR " dev " MACSTR " op_freq=%d)%s",
5074 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5075 auto_join ? " (auto_join)" : "");
5076 if (ssid && ssid_len) {
5077 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5078 wpa_ssid_txt(ssid, ssid_len));
5081 wpa_s->p2p_auto_pd = 0;
5082 wpa_s->p2p_auto_join = !!auto_join;
5083 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5084 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5085 wpa_s->pending_join_wps_method = wps_method;
5087 /* Make sure we are not running find during connection establishment */
5088 wpas_p2p_stop_find(wpa_s);
5090 wpa_s->p2p_join_scan_count = 0;
5091 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5096 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5097 const u8 *ssid, size_t ssid_len)
5099 struct wpa_supplicant *group;
5100 struct p2p_go_neg_results res;
5101 struct wpa_bss *bss;
5103 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5106 if (group != wpa_s) {
5107 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5108 sizeof(group->p2p_pin));
5109 group->p2p_wps_method = wpa_s->p2p_wps_method;
5112 * Need to mark the current interface for p2p_group_formation
5113 * when a separate group interface is not used. This is needed
5114 * to allow p2p_cancel stop a pending p2p_connect-join.
5115 * wpas_p2p_init_group_interface() addresses this for the case
5116 * where a separate group interface is used.
5118 wpa_s->global->p2p_group_formation = wpa_s;
5121 group->p2p_in_provisioning = 1;
5122 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5124 os_memset(&res, 0, sizeof(res));
5125 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5126 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5128 res.wps_method = wpa_s->pending_join_wps_method;
5129 if (freq && ssid && ssid_len) {
5131 res.ssid_len = ssid_len;
5132 os_memcpy(res.ssid, ssid, ssid_len);
5134 if (ssid && ssid_len) {
5135 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5138 bss = wpa_bss_get_bssid_latest(
5139 wpa_s, wpa_s->pending_join_iface_addr);
5142 res.freq = bss->freq;
5143 res.ssid_len = bss->ssid_len;
5144 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5145 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5147 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5148 } else if (ssid && ssid_len) {
5149 res.ssid_len = ssid_len;
5150 os_memcpy(res.ssid, ssid, ssid_len);
5151 wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5152 wpa_ssid_txt(ssid, ssid_len));
5156 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5157 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5159 wpa_drv_cancel_remain_on_channel(wpa_s);
5160 wpa_s->off_channel_freq = 0;
5161 wpa_s->roc_waiting_drv_freq = 0;
5163 wpas_start_wps_enrollee(group, &res);
5166 * Allow a longer timeout for join-a-running-group than normal 15
5167 * second group formation timeout since the GO may not have authorized
5168 * our connection yet.
5170 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5171 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5178 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5179 int *force_freq, int *pref_freq, int go,
5180 unsigned int *pref_freq_list,
5181 unsigned int *num_pref_freq)
5183 struct wpa_used_freq_data *freqs;
5184 int res, best_freq, num_unused;
5185 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5187 max_pref_freq = *num_pref_freq;
5190 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5191 sizeof(struct wpa_used_freq_data));
5195 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5196 wpa_s->num_multichan_concurrent);
5199 * It is possible that the total number of used frequencies is bigger
5200 * than the number of frequencies used for P2P, so get the system wide
5201 * number of unused frequencies.
5203 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5205 wpa_printf(MSG_DEBUG,
5206 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5207 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5212 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5214 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5216 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5217 ieee80211_is_dfs(freq, wpa_s->hw.modes,
5218 wpa_s->hw.num_modes)) {
5220 * If freq is a DFS channel and DFS is offloaded
5221 * to the driver, allow P2P GO to use it.
5223 wpa_printf(MSG_DEBUG,
5224 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5227 wpa_printf(MSG_DEBUG,
5228 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5235 for (i = 0; i < num; i++) {
5236 if (freqs[i].freq == freq)
5240 if (num_unused <= 0 && !freq_in_use) {
5241 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5246 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5247 "requested channel (%u MHz)", freq);
5252 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5254 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5255 enum wpa_driver_if_type iface_type;
5258 iface_type = WPA_IF_P2P_GO;
5260 iface_type = WPA_IF_P2P_CLIENT;
5262 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5265 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5268 if (!res && max_pref_freq > 0) {
5269 *num_pref_freq = max_pref_freq;
5271 while (i < *num_pref_freq &&
5272 (!p2p_supported_freq(wpa_s->global->p2p,
5273 pref_freq_list[i]) ||
5274 wpas_p2p_disallowed_freq(wpa_s->global,
5275 pref_freq_list[i]))) {
5276 wpa_printf(MSG_DEBUG,
5277 "P2P: preferred_freq_list[%d]=%d is disallowed",
5278 i, pref_freq_list[i]);
5281 if (i != *num_pref_freq) {
5282 best_freq = pref_freq_list[i];
5283 wpa_printf(MSG_DEBUG,
5284 "P2P: Using preferred_freq_list[%d]=%d",
5287 wpa_printf(MSG_DEBUG,
5288 "P2P: All driver preferred frequencies are disallowed for P2P use");
5292 wpa_printf(MSG_DEBUG,
5293 "P2P: No preferred frequency list available");
5297 /* We have a candidate frequency to use */
5298 if (best_freq > 0) {
5299 if (*pref_freq == 0 && num_unused > 0) {
5300 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5302 *pref_freq = best_freq;
5304 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5306 *force_freq = best_freq;
5308 } else if (num_unused > 0) {
5309 wpa_printf(MSG_DEBUG,
5310 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5313 wpa_printf(MSG_DEBUG,
5314 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5328 * wpas_p2p_connect - Request P2P Group Formation to be started
5329 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5330 * @peer_addr: Address of the peer P2P Device
5331 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5332 * @persistent_group: Whether to create a persistent group
5333 * @auto_join: Whether to select join vs. GO Negotiation automatically
5334 * @join: Whether to join an existing group (as a client) instead of starting
5335 * Group Owner negotiation; @peer_addr is BSSID in that case
5336 * @auth: Whether to only authorize the connection instead of doing that and
5337 * initiating Group Owner negotiation
5338 * @go_intent: GO Intent or -1 to use default
5339 * @freq: Frequency for the group or 0 for auto-selection
5340 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5341 * @persistent_id: Persistent group credentials to use for forcing GO
5342 * parameters or -1 to generate new values (SSID/passphrase)
5343 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5344 * interoperability workaround when initiating group formation
5345 * @ht40: Start GO with 40 MHz channel width
5346 * @vht: Start GO with VHT support
5347 * @vht_chwidth: Channel width supported by GO operating with VHT support
5348 * (VHT_CHANWIDTH_*).
5349 * @group_ssid: Specific Group SSID for join or %NULL if not set
5350 * @group_ssid_len: Length of @group_ssid in octets
5351 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5352 * failure, -2 on failure due to channel not currently available,
5353 * -3 if forced channel is not supported
5355 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5356 const char *pin, enum p2p_wps_method wps_method,
5357 int persistent_group, int auto_join, int join, int auth,
5358 int go_intent, int freq, unsigned int vht_center_freq2,
5359 int persistent_id, int pd, int ht40, int vht,
5360 unsigned int vht_chwidth, const u8 *group_ssid,
5361 size_t group_ssid_len)
5363 int force_freq = 0, pref_freq = 0;
5365 enum wpa_driver_if_type iftype;
5367 struct wpa_ssid *ssid = NULL;
5368 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5370 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5373 if (persistent_id >= 0) {
5374 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5375 if (ssid == NULL || ssid->disabled != 2 ||
5376 ssid->mode != WPAS_MODE_P2P_GO)
5380 os_free(wpa_s->global->add_psk);
5381 wpa_s->global->add_psk = NULL;
5383 wpa_s->global->p2p_fail_on_wps_complete = 0;
5384 wpa_s->global->pending_p2ps_group = 0;
5385 wpa_s->global->pending_p2ps_group_freq = 0;
5386 wpa_s->p2ps_method_config_any = 0;
5389 go_intent = wpa_s->conf->p2p_go_intent;
5392 wpa_s->p2p_long_listen = 0;
5394 wpa_s->p2p_wps_method = wps_method;
5395 wpa_s->p2p_persistent_group = !!persistent_group;
5396 wpa_s->p2p_persistent_id = persistent_id;
5397 wpa_s->p2p_go_intent = go_intent;
5398 wpa_s->p2p_connect_freq = freq;
5399 wpa_s->p2p_fallback_to_go_neg = 0;
5400 wpa_s->p2p_pd_before_go_neg = !!pd;
5401 wpa_s->p2p_go_ht40 = !!ht40;
5402 wpa_s->p2p_go_vht = !!vht;
5403 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5404 wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5407 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5408 else if (wps_method == WPS_PIN_DISPLAY) {
5409 if (wps_generate_pin((unsigned int *) &ret) < 0)
5411 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5413 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5414 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5415 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5417 } else if (wps_method == WPS_P2PS) {
5418 /* Force the P2Ps default PIN to be used */
5419 os_strlcpy(wpa_s->p2p_pin, "12345670", sizeof(wpa_s->p2p_pin));
5421 wpa_s->p2p_pin[0] = '\0';
5423 if (join || auto_join) {
5424 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5426 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5427 "connect a running group from " MACSTR,
5428 MAC2STR(peer_addr));
5429 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5432 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5433 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5435 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5436 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5440 os_get_reltime(&wpa_s->p2p_auto_started);
5441 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5443 wpa_s->p2p_auto_started.sec,
5444 wpa_s->p2p_auto_started.usec);
5446 wpa_s->user_initiated_pd = 1;
5447 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5449 group_ssid, group_ssid_len) < 0)
5454 size = P2P_MAX_PREF_CHANNELS;
5455 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5456 go_intent == 15, pref_freq_list, &size);
5459 wpas_p2p_set_own_freq_preference(wpa_s,
5460 force_freq ? force_freq : pref_freq);
5462 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5464 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5466 if (wpa_s->create_p2p_iface) {
5467 /* Prepare to add a new interface for the group */
5468 iftype = WPA_IF_P2P_GROUP;
5469 if (go_intent == 15)
5470 iftype = WPA_IF_P2P_GO;
5471 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5472 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5473 "interface for the group");
5477 if_addr = wpa_s->pending_interface_addr;
5479 if (wpa_s->p2p_mgmt)
5480 if_addr = wpa_s->parent->own_addr;
5482 if_addr = wpa_s->own_addr;
5483 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5487 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5489 force_freq, persistent_group, ssid,
5495 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5496 go_intent, if_addr, force_freq,
5497 persistent_group, ssid, pref_freq) < 0) {
5498 if (wpa_s->create_p2p_iface)
5499 wpas_p2p_remove_pending_group_interface(wpa_s);
5507 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5508 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5509 * @freq: Frequency of the channel in MHz
5510 * @duration: Duration of the stay on the channel in milliseconds
5512 * This callback is called when the driver indicates that it has started the
5513 * requested remain-on-channel duration.
5515 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5516 unsigned int freq, unsigned int duration)
5518 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5520 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)",
5521 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5522 wpa_s->roc_waiting_drv_freq, freq, duration);
5523 if (wpa_s->off_channel_freq &&
5524 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5525 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5526 wpa_s->pending_listen_duration);
5527 wpa_s->pending_listen_freq = 0;
5529 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5530 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5536 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5538 /* Limit maximum Listen state time based on driver limitation. */
5539 if (timeout > wpa_s->max_remain_on_chan)
5540 timeout = wpa_s->max_remain_on_chan;
5542 return p2p_listen(wpa_s->global->p2p, timeout);
5547 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5548 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5549 * @freq: Frequency of the channel in MHz
5551 * This callback is called when the driver indicates that a remain-on-channel
5552 * operation has been completed, i.e., the duration on the requested channel
5555 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5558 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5559 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5560 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5561 wpas_p2p_listen_work_done(wpa_s);
5562 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5564 if (wpa_s->p2p_long_listen > 0)
5565 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5566 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5567 return; /* P2P module started a new operation */
5568 if (offchannel_pending_action_tx(wpa_s))
5570 if (wpa_s->p2p_long_listen > 0) {
5571 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5572 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5575 * When listen duration is over, stop listen & update p2p_state
5578 p2p_stop_listen(wpa_s->global->p2p);
5584 * wpas_p2p_group_remove - Remove a P2P group
5585 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5586 * @ifname: Network interface name of the group interface or "*" to remove all
5588 * Returns: 0 on success, -1 on failure
5590 * This function is used to remove a P2P group. This can be used to disconnect
5591 * from a group in which the local end is a P2P Client or to end a P2P Group in
5592 * case the local end is the Group Owner. If a virtual network interface was
5593 * created for this group, that interface will be removed. Otherwise, only the
5594 * configured P2P group network will be removed from the interface.
5596 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5598 struct wpa_global *global = wpa_s->global;
5599 struct wpa_supplicant *calling_wpa_s = wpa_s;
5601 if (os_strcmp(ifname, "*") == 0) {
5602 struct wpa_supplicant *prev;
5603 wpa_s = global->ifaces;
5606 wpa_s = wpa_s->next;
5607 if (prev->p2p_group_interface !=
5608 NOT_P2P_GROUP_INTERFACE ||
5609 (prev->current_ssid &&
5610 prev->current_ssid->p2p_group))
5611 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5616 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5617 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5621 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5625 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5629 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5630 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5631 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5634 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5635 &size, pref_freq_list);
5636 if (!res && size > 0) {
5639 (!p2p_supported_freq(wpa_s->global->p2p,
5640 pref_freq_list[i]) ||
5641 wpas_p2p_disallowed_freq(wpa_s->global,
5642 pref_freq_list[i]))) {
5643 wpa_printf(MSG_DEBUG,
5644 "P2P: preferred_freq_list[%d]=%d is disallowed",
5645 i, pref_freq_list[i]);
5649 freq = pref_freq_list[i];
5650 wpa_printf(MSG_DEBUG,
5651 "P2P: Using preferred_freq_list[%d]=%d",
5654 wpa_printf(MSG_DEBUG,
5655 "P2P: All driver preferred frequencies are disallowed for P2P use");
5658 wpa_printf(MSG_DEBUG,
5659 "P2P: No preferred frequency list available");
5664 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5666 if (wpa_s->best_24_freq > 0 &&
5667 p2p_supported_freq_go(wpa_s->global->p2p,
5668 wpa_s->best_24_freq)) {
5669 freq = wpa_s->best_24_freq;
5670 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5671 "channel: %d MHz", freq);
5673 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5675 freq = 2412 + (r % 3) * 25;
5676 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5677 "channel: %d MHz", freq);
5682 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5684 if (wpa_s->best_5_freq > 0 &&
5685 p2p_supported_freq_go(wpa_s->global->p2p,
5686 wpa_s->best_5_freq)) {
5687 freq = wpa_s->best_5_freq;
5688 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5689 "channel: %d MHz", freq);
5691 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5693 freq = 5180 + (r % 4) * 20;
5694 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5695 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5696 "5 GHz channel for P2P group");
5699 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5700 "channel: %d MHz", freq);
5704 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5705 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5706 ieee80211_is_dfs(freq, wpa_s->hw.modes,
5707 wpa_s->hw.num_modes)) {
5709 * If freq is a DFS channel and DFS is offloaded to the
5710 * driver, allow P2P GO to use it.
5712 wpa_printf(MSG_DEBUG, "P2P: "
5713 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5717 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5718 "(%u MHz) is not supported for P2P uses",
5727 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5728 const struct p2p_channels *channels,
5731 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5732 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5733 freq_included(wpa_s, channels, freq))
5739 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5740 struct p2p_go_neg_results *params,
5741 const struct p2p_channels *channels)
5745 /* try all channels in operating class 115 */
5746 for (i = 0; i < 4; i++) {
5747 params->freq = 5180 + i * 20;
5748 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5749 freq_included(wpa_s, channels, params->freq) &&
5750 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5754 /* try all channels in operating class 124 */
5755 for (i = 0; i < 4; i++) {
5756 params->freq = 5745 + i * 20;
5757 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5758 freq_included(wpa_s, channels, params->freq) &&
5759 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5763 /* try social channel class 180 channel 2 */
5764 params->freq = 58320 + 1 * 2160;
5765 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5766 freq_included(wpa_s, channels, params->freq) &&
5767 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5770 /* try all channels in reg. class 180 */
5771 for (i = 0; i < 4; i++) {
5772 params->freq = 58320 + i * 2160;
5773 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5774 freq_included(wpa_s, channels, params->freq) &&
5775 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5779 /* try some random selection of the social channels */
5780 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5783 for (i = 0; i < 3; i++) {
5784 params->freq = 2412 + ((r + i) % 3) * 25;
5785 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5789 /* try all other channels in operating class 81 */
5790 for (i = 0; i < 11; i++) {
5791 params->freq = 2412 + i * 5;
5793 /* skip social channels; covered in the previous loop */
5794 if (params->freq == 2412 ||
5795 params->freq == 2437 ||
5796 params->freq == 2462)
5799 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5804 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5807 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5812 static int wpas_same_band(int freq1, int freq2)
5814 enum hostapd_hw_mode mode1, mode2;
5817 mode1 = ieee80211_freq_to_chan(freq1, &chan1);
5818 mode2 = ieee80211_freq_to_chan(freq2, &chan2);
5819 if (mode1 == NUM_HOSTAPD_MODES)
5821 return mode1 == mode2;
5825 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5826 struct p2p_go_neg_results *params,
5827 int freq, int vht_center_freq2, int ht40,
5828 int vht, int max_oper_chwidth,
5829 const struct p2p_channels *channels)
5831 struct wpa_used_freq_data *freqs;
5833 unsigned int num, i;
5834 int ignore_no_freqs = 0;
5835 int unused_channels = wpas_p2p_num_unused_channels(wpa_s) > 0;
5837 os_memset(params, 0, sizeof(*params));
5838 params->role_go = 1;
5839 params->ht40 = ht40;
5841 params->max_oper_chwidth = max_oper_chwidth;
5842 params->vht_center_freq2 = vht_center_freq2;
5844 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5845 sizeof(struct wpa_used_freq_data));
5849 num = get_shared_radio_freqs_data(wpa_s, freqs,
5850 wpa_s->num_multichan_concurrent);
5852 if (wpa_s->current_ssid &&
5853 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5854 wpa_s->wpa_state == WPA_COMPLETED) {
5855 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5859 * If the frequency selection is done for an active P2P GO that
5860 * is not sharing a frequency, allow to select a new frequency
5861 * even if there are no unused frequencies as we are about to
5862 * move the P2P GO so its frequency can be re-used.
5864 for (i = 0; i < num; i++) {
5865 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5866 freqs[i].flags == 0) {
5867 ignore_no_freqs = 1;
5873 /* try using the forced freq */
5875 if (wpas_p2p_disallowed_freq(wpa_s->global, freq) ||
5876 !freq_included(wpa_s, channels, freq)) {
5877 wpa_printf(MSG_DEBUG,
5878 "P2P: Forced GO freq %d MHz disallowed",
5882 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5883 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5884 ieee80211_is_dfs(freq, wpa_s->hw.modes,
5885 wpa_s->hw.num_modes)) {
5887 * If freq is a DFS channel and DFS is offloaded
5888 * to the driver, allow P2P GO to use it.
5890 wpa_printf(MSG_DEBUG,
5891 "P2P: %s: The forced channel for GO (%u MHz) requires DFS and DFS is offloaded",
5894 wpa_printf(MSG_DEBUG,
5895 "P2P: The forced channel for GO (%u MHz) is not supported for P2P uses",
5901 for (i = 0; i < num; i++) {
5902 if (freqs[i].freq == freq) {
5903 wpa_printf(MSG_DEBUG,
5904 "P2P: forced freq (%d MHz) is also shared",
5906 params->freq = freq;
5911 if (!ignore_no_freqs && !unused_channels) {
5912 wpa_printf(MSG_DEBUG,
5913 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5918 wpa_printf(MSG_DEBUG,
5919 "P2P: force GO freq (%d MHz) on a free channel",
5921 params->freq = freq;
5925 /* consider using one of the shared frequencies */
5927 (!wpa_s->conf->p2p_ignore_shared_freq || !unused_channels)) {
5928 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5929 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5930 wpa_printf(MSG_DEBUG,
5931 "P2P: Use shared freq (%d MHz) for GO",
5933 params->freq = cand;
5937 /* try using one of the shared freqs */
5938 for (i = 0; i < num; i++) {
5939 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5941 wpa_printf(MSG_DEBUG,
5942 "P2P: Use shared freq (%d MHz) for GO",
5944 params->freq = freqs[i].freq;
5950 if (!ignore_no_freqs && !unused_channels) {
5951 wpa_printf(MSG_DEBUG,
5952 "P2P: Cannot force GO on any of the channels we are already using");
5956 /* try using the setting from the configuration file */
5957 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5958 wpa_s->conf->p2p_oper_channel >= 1 &&
5959 wpa_s->conf->p2p_oper_channel <= 11 &&
5960 wpas_p2p_supported_freq_go(
5962 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5963 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5964 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5965 "frequency %d MHz", params->freq);
5969 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5970 wpa_s->conf->p2p_oper_reg_class == 116 ||
5971 wpa_s->conf->p2p_oper_reg_class == 117 ||
5972 wpa_s->conf->p2p_oper_reg_class == 124 ||
5973 wpa_s->conf->p2p_oper_reg_class == 125 ||
5974 wpa_s->conf->p2p_oper_reg_class == 126 ||
5975 wpa_s->conf->p2p_oper_reg_class == 127) &&
5976 wpas_p2p_supported_freq_go(wpa_s, channels,
5978 5 * wpa_s->conf->p2p_oper_channel)) {
5979 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5980 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5981 "frequency %d MHz", params->freq);
5985 /* Try using best channels */
5986 if (wpa_s->conf->p2p_oper_channel == 0 &&
5987 wpa_s->best_overall_freq > 0 &&
5988 wpas_p2p_supported_freq_go(wpa_s, channels,
5989 wpa_s->best_overall_freq)) {
5990 params->freq = wpa_s->best_overall_freq;
5991 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5992 "channel %d MHz", params->freq);
5996 if (wpa_s->conf->p2p_oper_channel == 0 &&
5997 wpa_s->best_24_freq > 0 &&
5998 wpas_p2p_supported_freq_go(wpa_s, channels,
5999 wpa_s->best_24_freq)) {
6000 params->freq = wpa_s->best_24_freq;
6001 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
6002 "channel %d MHz", params->freq);
6006 if (wpa_s->conf->p2p_oper_channel == 0 &&
6007 wpa_s->best_5_freq > 0 &&
6008 wpas_p2p_supported_freq_go(wpa_s, channels,
6009 wpa_s->best_5_freq)) {
6010 params->freq = wpa_s->best_5_freq;
6011 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
6012 "channel %d MHz", params->freq);
6016 /* try using preferred channels */
6017 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
6018 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6019 params->freq = cand;
6020 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
6021 "channels", params->freq);
6025 /* Try using a channel that allows VHT to be used with 80 MHz */
6026 if (wpa_s->hw.modes && wpa_s->p2p_group_common_freqs) {
6027 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6028 enum hostapd_hw_mode mode;
6029 struct hostapd_hw_modes *hwmode;
6032 cand = wpa_s->p2p_group_common_freqs[i];
6033 mode = ieee80211_freq_to_chan(cand, &chan);
6034 hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
6037 wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6040 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6041 params->freq = cand;
6042 wpa_printf(MSG_DEBUG,
6043 "P2P: Use freq %d MHz common with the peer and allowing VHT80",
6050 /* Try using a channel that allows HT to be used with 40 MHz on the same
6051 * band so that CSA can be used */
6052 if (wpa_s->current_ssid && wpa_s->hw.modes &&
6053 wpa_s->p2p_group_common_freqs) {
6054 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6055 enum hostapd_hw_mode mode;
6056 struct hostapd_hw_modes *hwmode;
6059 cand = wpa_s->p2p_group_common_freqs[i];
6060 mode = ieee80211_freq_to_chan(cand, &chan);
6061 hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
6063 if (!wpas_same_band(wpa_s->current_ssid->frequency,
6066 (wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6067 BW40MINUS) != ALLOWED &&
6068 wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6069 BW40PLUS) != ALLOWED))
6071 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6072 params->freq = cand;
6073 wpa_printf(MSG_DEBUG,
6074 "P2P: Use freq %d MHz common with the peer, allowing HT40, and maintaining same band",
6081 /* Try using one of the group common freqs on the same band so that CSA
6083 if (wpa_s->current_ssid && wpa_s->p2p_group_common_freqs) {
6084 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6085 cand = wpa_s->p2p_group_common_freqs[i];
6086 if (!wpas_same_band(wpa_s->current_ssid->frequency,
6089 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6090 params->freq = cand;
6091 wpa_printf(MSG_DEBUG,
6092 "P2P: Use freq %d MHz common with the peer and maintaining same band",
6099 /* Try using one of the group common freqs */
6100 if (wpa_s->p2p_group_common_freqs) {
6101 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6102 cand = wpa_s->p2p_group_common_freqs[i];
6103 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6104 params->freq = cand;
6105 wpa_printf(MSG_DEBUG,
6106 "P2P: Use freq %d MHz common with the peer",
6113 /* no preference, select some channel */
6114 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
6116 if (params->freq == 0) {
6117 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
6130 static struct wpa_supplicant *
6131 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
6134 struct wpa_supplicant *group_wpa_s;
6136 if (!wpas_p2p_create_iface(wpa_s)) {
6137 if (wpa_s->p2p_mgmt) {
6139 * We may be called on the p2p_dev interface which
6140 * cannot be used for group operations, so always use
6141 * the primary interface.
6143 wpa_s->parent->p2pdev = wpa_s;
6144 wpa_s = wpa_s->parent;
6146 wpa_dbg(wpa_s, MSG_DEBUG,
6147 "P2P: Use primary interface for group operations");
6148 wpa_s->p2p_first_connection_timeout = 0;
6149 if (wpa_s != wpa_s->p2pdev)
6150 wpas_p2p_clone_config(wpa_s, wpa_s->p2pdev);
6154 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
6155 WPA_IF_P2P_CLIENT) < 0) {
6156 wpa_msg_global(wpa_s, MSG_ERROR,
6157 "P2P: Failed to add group interface");
6160 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
6161 if (group_wpa_s == NULL) {
6162 wpa_msg_global(wpa_s, MSG_ERROR,
6163 "P2P: Failed to initialize group interface");
6164 wpas_p2p_remove_pending_group_interface(wpa_s);
6168 if (go && wpa_s->p2p_go_do_acs) {
6169 group_wpa_s->p2p_go_do_acs = wpa_s->p2p_go_do_acs;
6170 group_wpa_s->p2p_go_acs_band = wpa_s->p2p_go_acs_band;
6171 wpa_s->p2p_go_do_acs = 0;
6174 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6175 group_wpa_s->ifname);
6176 group_wpa_s->p2p_first_connection_timeout = 0;
6182 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6183 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6184 * @persistent_group: Whether to create a persistent group
6185 * @freq: Frequency for the group or 0 to indicate no hardcoding
6186 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6187 * @ht40: Start GO with 40 MHz channel width
6188 * @vht: Start GO with VHT support
6189 * @vht_chwidth: channel bandwidth for GO operating with VHT support
6190 * Returns: 0 on success, -1 on failure
6192 * This function creates a new P2P group with the local end as the Group Owner,
6193 * i.e., without using Group Owner Negotiation.
6195 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6196 int freq, int vht_center_freq2, int ht40, int vht,
6197 int max_oper_chwidth)
6199 struct p2p_go_neg_results params;
6201 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6204 os_free(wpa_s->global->add_psk);
6205 wpa_s->global->add_psk = NULL;
6207 /* Make sure we are not running find during connection establishment */
6208 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6209 wpas_p2p_stop_find_oper(wpa_s);
6211 if (!wpa_s->p2p_go_do_acs) {
6212 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6217 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6218 ht40, vht, max_oper_chwidth, NULL))
6221 p2p_go_params(wpa_s->global->p2p, ¶ms);
6222 params.persistent_group = persistent_group;
6224 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6227 wpas_start_wps_go(wpa_s, ¶ms, 0);
6233 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6234 struct wpa_ssid *params, int addr_allocated,
6235 int freq, int force_scan)
6237 struct wpa_ssid *ssid;
6239 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6243 os_get_reltime(&wpa_s->scan_min_time);
6244 wpa_s->p2p_last_4way_hs_fail = NULL;
6246 wpa_supplicant_ap_deinit(wpa_s);
6248 ssid = wpa_config_add_network(wpa_s->conf);
6251 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6252 wpa_config_set_network_defaults(ssid);
6253 ssid->temporary = 1;
6254 ssid->proto = WPA_PROTO_RSN;
6255 ssid->pbss = params->pbss;
6256 ssid->pairwise_cipher = params->pbss ? WPA_CIPHER_GCMP :
6258 ssid->group_cipher = params->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
6259 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6260 ssid->ssid = os_malloc(params->ssid_len);
6261 if (ssid->ssid == NULL) {
6262 wpa_config_remove_network(wpa_s->conf, ssid->id);
6265 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6266 ssid->ssid_len = params->ssid_len;
6267 ssid->p2p_group = 1;
6268 ssid->export_keys = 1;
6269 if (params->psk_set) {
6270 os_memcpy(ssid->psk, params->psk, 32);
6273 if (params->passphrase)
6274 ssid->passphrase = os_strdup(params->passphrase);
6276 wpa_s->show_group_started = 1;
6277 wpa_s->p2p_in_invitation = 1;
6278 wpa_s->p2p_invite_go_freq = freq;
6279 wpa_s->p2p_go_group_formation_completed = 0;
6280 wpa_s->global->p2p_group_formation = wpa_s;
6282 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6284 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6285 wpas_p2p_group_formation_timeout,
6286 wpa_s->p2pdev, NULL);
6287 wpa_supplicant_select_network(wpa_s, ssid);
6293 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6294 struct wpa_ssid *ssid, int addr_allocated,
6295 int force_freq, int neg_freq,
6296 int vht_center_freq2, int ht40,
6297 int vht, int max_oper_chwidth,
6298 const struct p2p_channels *channels,
6299 int connection_timeout, int force_scan)
6301 struct p2p_go_neg_results params;
6304 if (ssid->disabled != 2 || ssid->ssid == NULL)
6307 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6308 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6309 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6312 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6313 wpa_s->p2pdev, NULL)) {
6315 * This can happen if Invitation Response frame was lost
6316 * and the peer (GO of a persistent group) tries to
6317 * invite us again. Reschedule the timeout to avoid
6318 * terminating the wait for the connection too early
6319 * since we now know that the peer is still trying to
6320 * invite us instead of having already started the GO.
6322 wpa_printf(MSG_DEBUG,
6323 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6324 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6325 wpas_p2p_group_formation_timeout,
6326 wpa_s->p2pdev, NULL);
6331 os_free(wpa_s->global->add_psk);
6332 wpa_s->global->add_psk = NULL;
6334 /* Make sure we are not running find during connection establishment */
6335 wpas_p2p_stop_find_oper(wpa_s);
6337 wpa_s->p2p_fallback_to_go_neg = 0;
6339 if (ssid->mode == WPAS_MODE_P2P_GO) {
6340 if (force_freq > 0) {
6341 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6345 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6347 (freq > 0 && !freq_included(wpa_s, channels, freq)))
6350 } else if (ssid->mode == WPAS_MODE_INFRA) {
6352 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6353 struct os_reltime now;
6354 struct wpa_bss *bss =
6355 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6357 os_get_reltime(&now);
6359 !os_reltime_expired(&now, &bss->last_update, 5) &&
6360 freq_included(wpa_s, channels, bss->freq))
6366 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6372 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6373 ht40, vht, max_oper_chwidth, channels))
6377 params.psk_set = ssid->psk_set;
6379 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6380 if (ssid->passphrase) {
6381 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6382 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6383 "persistent group");
6386 os_strlcpy(params.passphrase, ssid->passphrase,
6387 sizeof(params.passphrase));
6389 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6390 params.ssid_len = ssid->ssid_len;
6391 params.persistent_group = 1;
6393 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6397 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6399 wpa_s->p2p_first_connection_timeout = connection_timeout;
6400 wpas_start_wps_go(wpa_s, ¶ms, 0);
6406 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6407 struct wpabuf *proberesp_ies)
6409 struct wpa_supplicant *wpa_s = ctx;
6410 if (wpa_s->ap_iface) {
6411 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6412 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6413 wpabuf_free(beacon_ies);
6414 wpabuf_free(proberesp_ies);
6418 wpabuf_free(hapd->p2p_beacon_ie);
6419 hapd->p2p_beacon_ie = beacon_ies;
6421 wpabuf_free(hapd->p2p_probe_resp_ie);
6422 hapd->p2p_probe_resp_ie = proberesp_ies;
6424 wpabuf_free(beacon_ies);
6425 wpabuf_free(proberesp_ies);
6427 wpa_supplicant_ap_update_beacon(wpa_s);
6431 static void wpas_p2p_idle_update(void *ctx, int idle)
6433 struct wpa_supplicant *wpa_s = ctx;
6434 if (!wpa_s->ap_iface)
6436 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6438 if (wpa_s->global->p2p_fail_on_wps_complete &&
6439 wpa_s->p2p_in_provisioning) {
6440 wpas_p2p_grpform_fail_after_wps(wpa_s);
6443 wpas_p2p_set_group_idle_timeout(wpa_s);
6445 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6449 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6450 struct wpa_ssid *ssid)
6452 struct p2p_group *group;
6453 struct p2p_group_config *cfg;
6455 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6459 cfg = os_zalloc(sizeof(*cfg));
6463 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6464 cfg->persistent_group = 2;
6465 else if (ssid->p2p_persistent_group)
6466 cfg->persistent_group = 1;
6467 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6468 if (wpa_s->max_stations &&
6469 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6470 cfg->max_clients = wpa_s->max_stations;
6472 cfg->max_clients = wpa_s->conf->max_num_sta;
6473 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6474 cfg->ssid_len = ssid->ssid_len;
6475 cfg->freq = ssid->frequency;
6476 cfg->cb_ctx = wpa_s;
6477 cfg->ie_update = wpas_p2p_ie_update;
6478 cfg->idle_update = wpas_p2p_idle_update;
6479 cfg->ip_addr_alloc = WPA_GET_BE32(wpa_s->p2pdev->conf->ip_addr_start)
6482 group = p2p_group_init(wpa_s->global->p2p, cfg);
6485 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6486 p2p_group_notif_formation_done(group);
6487 wpa_s->p2p_group = group;
6492 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6495 struct wpa_ssid *ssid = wpa_s->current_ssid;
6497 if (!wpa_s->p2p_in_provisioning) {
6498 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6499 "provisioning not in progress");
6503 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6504 u8 go_dev_addr[ETH_ALEN];
6505 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6506 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6508 /* Clear any stored provisioning info */
6509 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6512 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6514 wpa_s->p2p_go_group_formation_completed = 1;
6515 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6517 * Use a separate timeout for initial data connection to
6518 * complete to allow the group to be removed automatically if
6519 * something goes wrong in this step before the P2P group idle
6520 * timeout mechanism is taken into use.
6522 wpa_dbg(wpa_s, MSG_DEBUG,
6523 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6524 P2P_MAX_INITIAL_CONN_WAIT);
6525 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6526 wpas_p2p_group_formation_timeout,
6527 wpa_s->p2pdev, NULL);
6528 /* Complete group formation on successful data connection. */
6529 wpa_s->p2p_go_group_formation_completed = 0;
6532 * Use a separate timeout for initial data connection to
6533 * complete to allow the group to be removed automatically if
6534 * the client does not complete data connection successfully.
6536 wpa_dbg(wpa_s, MSG_DEBUG,
6537 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6538 P2P_MAX_INITIAL_CONN_WAIT_GO);
6539 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6540 wpas_p2p_group_formation_timeout,
6541 wpa_s->p2pdev, NULL);
6543 * Complete group formation on first successful data connection
6545 wpa_s->p2p_go_group_formation_completed = 0;
6547 if (wpa_s->global->p2p)
6548 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6549 wpas_group_formation_completed(wpa_s, 1, 0);
6553 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6554 struct wps_event_fail *fail)
6556 if (!wpa_s->p2p_in_provisioning) {
6557 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6558 "provisioning not in progress");
6562 if (wpa_s->go_params) {
6563 p2p_clear_provisioning_info(
6565 wpa_s->go_params->peer_device_addr);
6568 wpas_notify_p2p_wps_failed(wpa_s, fail);
6570 if (wpa_s == wpa_s->global->p2p_group_formation) {
6572 * Allow some time for the failed WPS negotiation exchange to
6573 * complete, but remove the group since group formation cannot
6574 * succeed after provisioning failure.
6576 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6577 wpa_s->global->p2p_fail_on_wps_complete = 1;
6578 eloop_deplete_timeout(0, 50000,
6579 wpas_p2p_group_formation_timeout,
6580 wpa_s->p2pdev, NULL);
6585 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6587 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6588 !wpa_s->p2p_in_provisioning)
6591 wpas_p2p_grpform_fail_after_wps(wpa_s);
6597 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6598 const char *config_method,
6599 enum wpas_p2p_prov_disc_use use,
6600 struct p2ps_provision *p2ps_prov)
6604 wpa_s->global->pending_p2ps_group = 0;
6605 wpa_s->global->pending_p2ps_group_freq = 0;
6606 wpa_s->p2p_fallback_to_go_neg = 0;
6607 wpa_s->pending_pd_use = NORMAL_PD;
6608 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6609 p2ps_prov->conncap = p2ps_group_capability(
6610 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6611 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6613 wpa_printf(MSG_DEBUG,
6614 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6615 __func__, p2ps_prov->conncap,
6616 p2ps_prov->adv_id, p2ps_prov->conncap,
6617 p2ps_prov->status, p2ps_prov->info);
6620 } else if (os_strncmp(config_method, "display", 7) == 0)
6621 config_methods = WPS_CONFIG_DISPLAY;
6622 else if (os_strncmp(config_method, "keypad", 6) == 0)
6623 config_methods = WPS_CONFIG_KEYPAD;
6624 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6625 os_strncmp(config_method, "pushbutton", 10) == 0)
6626 config_methods = WPS_CONFIG_PUSHBUTTON;
6628 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6633 if (use == WPAS_P2P_PD_AUTO) {
6634 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6635 wpa_s->pending_pd_config_methods = config_methods;
6636 wpa_s->p2p_auto_pd = 1;
6637 wpa_s->p2p_auto_join = 0;
6638 wpa_s->pending_pd_before_join = 0;
6639 wpa_s->auto_pd_scan_retry = 0;
6640 wpas_p2p_stop_find(wpa_s);
6641 wpa_s->p2p_join_scan_count = 0;
6642 os_get_reltime(&wpa_s->p2p_auto_started);
6643 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6644 wpa_s->p2p_auto_started.sec,
6645 wpa_s->p2p_auto_started.usec);
6646 wpas_p2p_join_scan(wpa_s, NULL);
6650 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6655 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6656 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6661 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6664 return p2p_scan_result_text(ies, ies_len, buf, end);
6668 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6670 if (!offchannel_pending_action_tx(wpa_s))
6673 if (wpa_s->p2p_send_action_work) {
6674 wpas_p2p_free_send_action_work(wpa_s);
6675 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
6677 offchannel_send_action_done(wpa_s);
6680 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6681 "operation request");
6682 offchannel_clear_pending_action_tx(wpa_s);
6686 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6687 enum p2p_discovery_type type,
6688 unsigned int num_req_dev_types, const u8 *req_dev_types,
6689 const u8 *dev_id, unsigned int search_delay,
6690 u8 seek_cnt, const char **seek_string, int freq)
6692 wpas_p2p_clear_pending_action_tx(wpa_s);
6693 wpa_s->p2p_long_listen = 0;
6695 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6696 wpa_s->p2p_in_provisioning) {
6697 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Reject p2p_find operation%s%s",
6698 (wpa_s->global->p2p_disabled || !wpa_s->global->p2p) ?
6699 " (P2P disabled)" : "",
6700 wpa_s->p2p_in_provisioning ?
6701 " (p2p_in_provisioning)" : "");
6705 wpa_supplicant_cancel_sched_scan(wpa_s);
6707 return p2p_find(wpa_s->global->p2p, timeout, type,
6708 num_req_dev_types, req_dev_types, dev_id,
6709 search_delay, seek_cnt, seek_string, freq);
6713 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6714 struct wpa_scan_results *scan_res)
6716 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6718 if (wpa_s->p2p_scan_work) {
6719 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6720 wpa_s->p2p_scan_work = NULL;
6721 radio_work_done(work);
6724 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6728 * Indicate that results have been processed so that the P2P module can
6729 * continue pending tasks.
6731 p2p_scan_res_handled(wpa_s->global->p2p);
6735 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6737 wpas_p2p_clear_pending_action_tx(wpa_s);
6738 wpa_s->p2p_long_listen = 0;
6739 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6740 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6742 if (wpa_s->global->p2p)
6743 p2p_stop_find(wpa_s->global->p2p);
6745 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6746 wpa_printf(MSG_DEBUG,
6747 "P2P: Do not consider the scan results after stop_find");
6748 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6753 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6755 wpas_p2p_stop_find_oper(wpa_s);
6756 if (!wpa_s->global->pending_group_iface_for_p2ps)
6757 wpas_p2p_remove_pending_group_interface(wpa_s);
6761 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6763 struct wpa_supplicant *wpa_s = eloop_ctx;
6764 wpa_s->p2p_long_listen = 0;
6768 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6772 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6775 if (wpa_s->p2p_lo_started) {
6776 wpa_printf(MSG_DEBUG,
6777 "P2P: Cannot start P2P listen, it is offloaded");
6781 wpa_supplicant_cancel_sched_scan(wpa_s);
6782 wpas_p2p_clear_pending_action_tx(wpa_s);
6786 * This is a request for unlimited Listen state. However, at
6787 * least for now, this is mapped to a Listen state for one
6792 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6793 wpa_s->p2p_long_listen = 0;
6796 * Stop previous find/listen operation to avoid trying to request a new
6797 * remain-on-channel operation while the driver is still running the
6800 if (wpa_s->global->p2p)
6801 p2p_stop_find(wpa_s->global->p2p);
6803 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6804 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6805 wpa_s->p2p_long_listen = timeout * 1000;
6806 eloop_register_timeout(timeout, 0,
6807 wpas_p2p_long_listen_timeout,
6815 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6816 u8 *buf, size_t len, int p2p_group)
6818 struct wpabuf *p2p_ie;
6821 if (wpa_s->global->p2p_disabled)
6824 * Advertize mandatory cross connection capability even on
6825 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6827 if (wpa_s->conf->p2p_disabled && p2p_group)
6829 if (wpa_s->global->p2p == NULL)
6834 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6835 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6837 wpabuf_free(p2p_ie);
6843 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6844 const u8 *dst, const u8 *bssid,
6845 const u8 *ie, size_t ie_len,
6846 unsigned int rx_freq, int ssi_signal)
6848 if (wpa_s->global->p2p_disabled)
6850 if (wpa_s->global->p2p == NULL)
6853 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6854 ie, ie_len, rx_freq, wpa_s->p2p_lo_started)) {
6855 case P2P_PREQ_NOT_P2P:
6856 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6859 case P2P_PREQ_MALFORMED:
6860 case P2P_PREQ_NOT_LISTEN:
6861 case P2P_PREQ_NOT_PROCESSED:
6862 default: /* make gcc happy */
6864 case P2P_PREQ_PROCESSED:
6870 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6871 const u8 *sa, const u8 *bssid,
6872 u8 category, const u8 *data, size_t len, int freq)
6874 if (wpa_s->global->p2p_disabled)
6876 if (wpa_s->global->p2p == NULL)
6879 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6884 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6888 if (wpa_s->global->p2p_disabled)
6890 if (wpa_s->global->p2p == NULL)
6893 bands = wpas_get_bands(wpa_s, NULL);
6894 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
6898 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6900 p2p_group_deinit(wpa_s->p2p_group);
6901 wpa_s->p2p_group = NULL;
6903 wpa_s->ap_configured_cb = NULL;
6904 wpa_s->ap_configured_cb_ctx = NULL;
6905 wpa_s->ap_configured_cb_data = NULL;
6906 wpa_s->connect_without_scan = NULL;
6910 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6912 wpa_s->p2p_long_listen = 0;
6914 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6917 return p2p_reject(wpa_s->global->p2p, addr);
6921 /* Invite to reinvoke a persistent group */
6922 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6923 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6924 int vht_center_freq2, int ht40, int vht, int max_chwidth,
6927 enum p2p_invite_role role;
6931 int no_pref_freq_given = pref_freq == 0;
6932 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6934 wpa_s->global->p2p_invite_group = NULL;
6936 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6938 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6940 wpa_s->p2p_persistent_go_freq = freq;
6941 wpa_s->p2p_go_ht40 = !!ht40;
6942 wpa_s->p2p_go_vht = !!vht;
6943 wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6944 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6945 if (ssid->mode == WPAS_MODE_P2P_GO) {
6946 role = P2P_INVITE_ROLE_GO;
6947 if (peer_addr == NULL) {
6948 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6949 "address in invitation command");
6952 if (wpas_p2p_create_iface(wpa_s)) {
6953 if (wpas_p2p_add_group_interface(wpa_s,
6954 WPA_IF_P2P_GO) < 0) {
6955 wpa_printf(MSG_ERROR, "P2P: Failed to "
6956 "allocate a new interface for the "
6960 bssid = wpa_s->pending_interface_addr;
6961 } else if (wpa_s->p2p_mgmt)
6962 bssid = wpa_s->parent->own_addr;
6964 bssid = wpa_s->own_addr;
6966 role = P2P_INVITE_ROLE_CLIENT;
6967 peer_addr = ssid->bssid;
6969 wpa_s->pending_invite_ssid_id = ssid->id;
6971 size = P2P_MAX_PREF_CHANNELS;
6972 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6973 role == P2P_INVITE_ROLE_GO,
6974 pref_freq_list, &size);
6978 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6981 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6983 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6984 no_pref_freq_given && pref_freq > 0 &&
6985 wpa_s->num_multichan_concurrent > 1 &&
6986 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6987 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6993 * Stop any find/listen operations before invitation and possibly
6994 * connection establishment.
6996 wpas_p2p_stop_find_oper(wpa_s);
6998 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6999 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
7004 /* Invite to join an active group */
7005 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
7006 const u8 *peer_addr, const u8 *go_dev_addr)
7008 struct wpa_global *global = wpa_s->global;
7009 enum p2p_invite_role role;
7011 struct wpa_ssid *ssid;
7013 int freq = 0, force_freq = 0, pref_freq = 0;
7015 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
7017 wpa_s->p2p_persistent_go_freq = 0;
7018 wpa_s->p2p_go_ht40 = 0;
7019 wpa_s->p2p_go_vht = 0;
7020 wpa_s->p2p_go_vht_center_freq2 = 0;
7021 wpa_s->p2p_go_max_oper_chwidth = 0;
7023 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7024 if (os_strcmp(wpa_s->ifname, ifname) == 0)
7027 if (wpa_s == NULL) {
7028 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
7032 ssid = wpa_s->current_ssid;
7034 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
7039 wpa_s->global->p2p_invite_group = wpa_s;
7040 persistent = ssid->p2p_persistent_group &&
7041 wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
7042 ssid->ssid, ssid->ssid_len);
7044 if (ssid->mode == WPAS_MODE_P2P_GO) {
7045 role = P2P_INVITE_ROLE_ACTIVE_GO;
7046 bssid = wpa_s->own_addr;
7047 if (go_dev_addr == NULL)
7048 go_dev_addr = wpa_s->global->p2p_dev_addr;
7049 freq = ssid->frequency;
7051 role = P2P_INVITE_ROLE_CLIENT;
7052 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
7053 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
7054 "invite to current group");
7057 bssid = wpa_s->bssid;
7058 if (go_dev_addr == NULL &&
7059 !is_zero_ether_addr(wpa_s->go_dev_addr))
7060 go_dev_addr = wpa_s->go_dev_addr;
7061 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7062 (int) wpa_s->assoc_freq;
7064 wpa_s->p2pdev->pending_invite_ssid_id = -1;
7066 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7069 size = P2P_MAX_PREF_CHANNELS;
7070 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
7071 role == P2P_INVITE_ROLE_ACTIVE_GO,
7072 pref_freq_list, &size);
7075 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
7077 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
7078 ssid->ssid, ssid->ssid_len, force_freq,
7079 go_dev_addr, persistent, pref_freq, -1);
7083 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
7085 struct wpa_ssid *ssid = wpa_s->current_ssid;
7086 u8 go_dev_addr[ETH_ALEN];
7092 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
7093 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7094 wpa_s->p2pdev, NULL);
7097 if (!wpa_s->show_group_started || !ssid)
7100 wpa_s->show_group_started = 0;
7101 if (!wpa_s->p2p_go_group_formation_completed &&
7102 wpa_s->global->p2p_group_formation == wpa_s) {
7103 wpa_dbg(wpa_s, MSG_DEBUG,
7104 "P2P: Marking group formation completed on client on data connection");
7105 wpa_s->p2p_go_group_formation_completed = 1;
7106 wpa_s->global->p2p_group_formation = NULL;
7107 wpa_s->p2p_in_provisioning = 0;
7108 wpa_s->p2p_in_invitation = 0;
7111 os_memset(go_dev_addr, 0, ETH_ALEN);
7112 if (ssid->bssid_set)
7113 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
7114 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
7116 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
7118 if (wpa_s->global->p2p_group_formation == wpa_s)
7119 wpa_s->global->p2p_group_formation = NULL;
7121 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7122 (int) wpa_s->assoc_freq;
7125 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
7128 res = os_snprintf(ip_addr, sizeof(ip_addr),
7129 " ip_addr=%u.%u.%u.%u "
7130 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
7131 ip[0], ip[1], ip[2], ip[3],
7132 ip[4], ip[5], ip[6], ip[7],
7133 ip[8], ip[9], ip[10], ip[11]);
7134 if (os_snprintf_error(sizeof(ip_addr), res))
7138 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
7139 ssid->passphrase == NULL && ssid->psk_set ?
7141 ssid->passphrase, go_dev_addr, persistent,
7145 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
7148 wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 1, ip);
7152 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
7153 u32 interval1, u32 duration2, u32 interval2)
7157 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7160 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
7161 wpa_s->current_ssid == NULL ||
7162 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
7165 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
7166 wpa_s->own_addr, wpa_s->assoc_freq,
7167 duration1, interval1, duration2, interval2);
7169 wpa_s->waiting_presence_resp = 1;
7175 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
7176 unsigned int interval)
7178 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7181 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7185 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7187 if (wpa_s->current_ssid == NULL) {
7189 * current_ssid can be cleared when P2P client interface gets
7190 * disconnected, so assume this interface was used as P2P
7195 return wpa_s->current_ssid->p2p_group &&
7196 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7200 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7202 struct wpa_supplicant *wpa_s = eloop_ctx;
7204 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7205 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7210 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7212 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7216 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7220 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7221 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7223 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7226 timeout = wpa_s->conf->p2p_group_idle;
7227 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7228 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7229 timeout = P2P_MAX_CLIENT_IDLE;
7235 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7236 timeout = 0; /* special client mode no-timeout */
7241 if (wpa_s->p2p_in_provisioning) {
7243 * Use the normal group formation timeout during the
7244 * provisioning phase to avoid terminating this process too
7245 * early due to group idle timeout.
7247 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7248 "during provisioning");
7252 if (wpa_s->show_group_started) {
7254 * Use the normal group formation timeout between the end of
7255 * the provisioning phase and completion of 4-way handshake to
7256 * avoid terminating this process too early due to group idle
7259 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7260 "while waiting for initial 4-way handshake to "
7265 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7267 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7272 /* Returns 1 if the interface was removed */
7273 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7274 u16 reason_code, const u8 *ie, size_t ie_len,
7275 int locally_generated)
7277 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7280 if (!locally_generated)
7281 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7284 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7285 wpa_s->current_ssid &&
7286 wpa_s->current_ssid->p2p_group &&
7287 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7288 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7289 "session is ending");
7290 if (wpas_p2p_group_delete(wpa_s,
7291 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7300 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7301 u16 reason_code, const u8 *ie, size_t ie_len,
7302 int locally_generated)
7304 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7307 if (!locally_generated)
7308 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7313 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7315 struct p2p_data *p2p = wpa_s->global->p2p;
7320 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7323 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7324 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7326 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7327 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7330 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7331 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7333 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7334 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7336 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7337 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7338 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7339 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7340 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7343 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7344 p2p_set_sec_dev_types(p2p,
7345 (void *) wpa_s->conf->sec_device_type,
7346 wpa_s->conf->num_sec_device_types);
7348 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7350 p2p_remove_wps_vendor_extensions(p2p);
7351 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7352 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7354 p2p_add_wps_vendor_extension(
7355 p2p, wpa_s->conf->wps_vendor_ext[i]);
7359 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7360 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7362 country[0] = wpa_s->conf->country[0];
7363 country[1] = wpa_s->conf->country[1];
7365 p2p_set_country(p2p, country);
7368 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7369 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7370 wpa_s->conf->p2p_ssid_postfix ?
7371 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7375 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7376 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7378 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7379 u8 reg_class, channel;
7384 if (wpa_s->conf->p2p_listen_reg_class &&
7385 wpa_s->conf->p2p_listen_channel) {
7386 reg_class = wpa_s->conf->p2p_listen_reg_class;
7387 channel = wpa_s->conf->p2p_listen_channel;
7392 * Pick one of the social channels randomly as the
7395 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7398 channel = 1 + (r % 3) * 5;
7401 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7404 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7407 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7408 u8 op_reg_class, op_channel, cfg_op_channel;
7411 if (wpa_s->conf->p2p_oper_reg_class &&
7412 wpa_s->conf->p2p_oper_channel) {
7413 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7414 op_channel = wpa_s->conf->p2p_oper_channel;
7419 * Use random operation channel from (1, 6, 11)
7420 *if no other preference is indicated.
7422 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7425 op_channel = 1 + (r % 3) * 5;
7428 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7431 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7435 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7436 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7437 wpa_s->conf->p2p_pref_chan) < 0) {
7438 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7442 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7443 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7448 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7449 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7453 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7456 if (!wpa_s->ap_iface)
7458 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7463 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7465 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7468 wpa_s->global->cross_connection = enabled;
7469 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7472 struct wpa_supplicant *iface;
7474 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7476 if (iface->cross_connect_enabled == 0)
7479 iface->cross_connect_enabled = 0;
7480 iface->cross_connect_in_use = 0;
7481 wpa_msg_global(iface->p2pdev, MSG_INFO,
7482 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7484 iface->cross_connect_uplink);
7492 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7494 struct wpa_supplicant *iface;
7496 if (!uplink->global->cross_connection)
7499 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7500 if (!iface->cross_connect_enabled)
7502 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7505 if (iface->ap_iface == NULL)
7507 if (iface->cross_connect_in_use)
7510 iface->cross_connect_in_use = 1;
7511 wpa_msg_global(iface->p2pdev, MSG_INFO,
7512 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7513 iface->ifname, iface->cross_connect_uplink);
7518 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7520 struct wpa_supplicant *iface;
7522 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7523 if (!iface->cross_connect_enabled)
7525 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7528 if (!iface->cross_connect_in_use)
7531 wpa_msg_global(iface->p2pdev, MSG_INFO,
7532 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7533 iface->ifname, iface->cross_connect_uplink);
7534 iface->cross_connect_in_use = 0;
7539 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7541 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7542 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7543 wpa_s->cross_connect_disallowed)
7544 wpas_p2p_disable_cross_connect(wpa_s);
7546 wpas_p2p_enable_cross_connect(wpa_s);
7547 if (!wpa_s->ap_iface &&
7548 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7549 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7553 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7555 wpas_p2p_disable_cross_connect(wpa_s);
7556 if (!wpa_s->ap_iface &&
7557 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7559 wpas_p2p_set_group_idle_timeout(wpa_s);
7563 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7565 struct wpa_supplicant *iface;
7567 if (!wpa_s->global->cross_connection)
7570 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7573 if (iface->drv_flags &
7574 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7576 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7577 iface != wpa_s->parent)
7580 wpa_s->cross_connect_enabled = 1;
7581 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7582 sizeof(wpa_s->cross_connect_uplink));
7583 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7584 "%s to %s whenever uplink is available",
7585 wpa_s->ifname, wpa_s->cross_connect_uplink);
7587 if (iface->ap_iface || iface->current_ssid == NULL ||
7588 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7589 iface->cross_connect_disallowed ||
7590 iface->wpa_state != WPA_COMPLETED)
7593 wpa_s->cross_connect_in_use = 1;
7594 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
7595 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7596 wpa_s->ifname, wpa_s->cross_connect_uplink);
7602 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7604 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7605 !wpa_s->p2p_in_provisioning)
7606 return 0; /* not P2P client operation */
7608 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7610 if (wpa_s != wpa_s->p2pdev)
7611 wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
7612 wpas_p2p_group_formation_failed(wpa_s, 0);
7617 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7619 struct wpa_supplicant *wpa_s = eloop_ctx;
7620 wpas_p2p_notif_pbc_overlap(wpa_s);
7624 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7625 enum wpas_p2p_channel_update_trig trig)
7627 struct p2p_channels chan, cli_chan;
7628 struct wpa_used_freq_data *freqs = NULL;
7629 unsigned int num = wpa_s->num_multichan_concurrent;
7631 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7634 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7638 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7640 os_memset(&chan, 0, sizeof(chan));
7641 os_memset(&cli_chan, 0, sizeof(cli_chan));
7642 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7643 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7648 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7650 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7653 * The used frequencies map changed, so it is possible that a GO is
7654 * using a channel that is no longer valid for P2P use. It is also
7655 * possible that due to policy consideration, it would be preferable to
7656 * move it to a frequency already used by other station interfaces.
7658 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7664 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7665 struct wpa_scan_results *scan_res)
7667 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7671 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7673 struct wpa_global *global = wpa_s->global;
7677 if (global->p2p == NULL)
7680 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7682 if (wpa_s->pending_interface_name[0] &&
7683 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7686 peer = p2p_get_go_neg_peer(global->p2p);
7688 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7689 MACSTR, MAC2STR(peer));
7690 p2p_unauthorize(global->p2p, peer);
7694 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7695 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7696 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7700 if (wpa_s->pending_pd_before_join) {
7701 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7702 wpa_s->pending_pd_before_join = 0;
7706 wpas_p2p_stop_find(wpa_s);
7708 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7709 if (wpa_s == global->p2p_group_formation &&
7710 (wpa_s->p2p_in_provisioning ||
7711 wpa_s->parent->pending_interface_type ==
7712 WPA_IF_P2P_CLIENT)) {
7713 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7714 "formation found - cancelling",
7717 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7718 wpa_s->p2pdev, NULL);
7719 if (wpa_s->p2p_in_provisioning) {
7720 wpas_group_formation_completed(wpa_s, 0, 0);
7723 wpas_p2p_group_delete(wpa_s,
7724 P2P_GROUP_REMOVAL_REQUESTED);
7726 } else if (wpa_s->p2p_in_invitation) {
7727 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7730 wpas_p2p_group_formation_failed(wpa_s, 0);
7736 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7744 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7746 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7749 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7750 "being available anymore");
7751 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7755 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7756 int freq_24, int freq_5, int freq_overall)
7758 struct p2p_data *p2p = wpa_s->global->p2p;
7761 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7765 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7768 struct p2p_data *p2p = wpa_s->global->p2p;
7773 if (hwaddr_aton(addr, peer))
7776 return p2p_unauthorize(p2p, peer);
7781 * wpas_p2p_disconnect - Disconnect from a P2P Group
7782 * @wpa_s: Pointer to wpa_supplicant data
7783 * Returns: 0 on success, -1 on failure
7785 * This can be used to disconnect from a group in which the local end is a P2P
7786 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7787 * virtual network interface was created for this group, that interface will be
7788 * removed. Otherwise, only the configured P2P group network will be removed
7789 * from the interface.
7791 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7797 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7802 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7806 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7809 ret = p2p_in_progress(wpa_s->global->p2p);
7812 * Check whether there is an ongoing WPS provisioning step (or
7813 * other parts of group formation) on another interface since
7814 * p2p_in_progress() does not report this to avoid issues for
7815 * scans during such provisioning step.
7817 if (wpa_s->global->p2p_group_formation &&
7818 wpa_s->global->p2p_group_formation != wpa_s) {
7819 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7820 "in group formation",
7821 wpa_s->global->p2p_group_formation->ifname);
7826 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7827 struct os_reltime now;
7828 os_get_reltime(&now);
7829 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7830 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7831 /* Wait for the first client has expired */
7832 wpa_s->global->p2p_go_wait_client.sec = 0;
7834 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7843 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7844 struct wpa_ssid *ssid)
7846 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7847 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7848 wpa_s->p2pdev, NULL) > 0) {
7850 * Remove the network by scheduling the group formation
7851 * timeout to happen immediately. The teardown code
7852 * needs to be scheduled to run asynch later so that we
7853 * don't delete data from under ourselves unexpectedly.
7854 * Calling wpas_p2p_group_formation_timeout directly
7855 * causes a series of crashes in WPS failure scenarios.
7857 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7858 "P2P group network getting removed");
7859 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7860 wpa_s->p2pdev, NULL);
7865 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7866 const u8 *addr, const u8 *ssid,
7872 for (s = wpa_s->conf->ssid; s; s = s->next) {
7873 if (s->disabled != 2)
7876 (ssid_len != s->ssid_len ||
7877 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7880 if (s->mode == WPAS_MODE_P2P_GO)
7884 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7885 return s; /* peer is GO in the persistent group */
7886 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7888 for (i = 0; i < s->num_p2p_clients; i++) {
7889 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7890 addr, ETH_ALEN) == 0)
7891 return s; /* peer is P2P client in persistent
7900 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7903 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7904 wpa_s->p2pdev, NULL) > 0) {
7906 * This can happen if WPS provisioning step is not terminated
7907 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7908 * peer was able to connect, there is no need to time out group
7909 * formation after this, though. In addition, this is used with
7910 * the initial connection wait on the GO as a separate formation
7911 * timeout and as such, expected to be hit after the initial WPS
7912 * provisioning step.
7914 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7916 if (!wpa_s->p2p_go_group_formation_completed &&
7917 !wpa_s->group_formation_reported) {
7919 * GO has not yet notified group formation success since
7920 * the WPS step was not completed cleanly. Do that
7921 * notification now since the P2P Client was able to
7922 * connect and as such, must have received the
7923 * credential from the WPS step.
7925 if (wpa_s->global->p2p)
7926 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7927 wpas_group_formation_completed(wpa_s, 1, 0);
7930 if (!wpa_s->p2p_go_group_formation_completed) {
7931 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7932 wpa_s->p2p_go_group_formation_completed = 1;
7933 wpa_s->global->p2p_group_formation = NULL;
7934 wpa_s->p2p_in_provisioning = 0;
7935 wpa_s->p2p_in_invitation = 0;
7937 wpa_s->global->p2p_go_wait_client.sec = 0;
7940 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7944 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7947 struct wpa_supplicant *group = wpa_s;
7950 if (wpa_s->global->p2p_group_formation)
7951 group = wpa_s->global->p2p_group_formation;
7952 wpa_s = wpa_s->global->p2p_init_wpa_s;
7953 offchannel_send_action_done(wpa_s);
7955 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7956 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7957 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7958 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7959 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7960 wpa_s->p2p_go_vht_center_freq2,
7961 wpa_s->p2p_persistent_id,
7962 wpa_s->p2p_pd_before_go_neg,
7965 wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7970 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7974 if (!wpa_s->p2p_fallback_to_go_neg ||
7975 wpa_s->p2p_in_provisioning <= 5)
7978 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7979 return 0; /* peer operating as a GO */
7981 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7982 "fallback to GO Negotiation");
7983 wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7984 "reason=GO-not-found");
7985 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7987 return res == 1 ? 2 : 1;
7991 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7993 struct wpa_supplicant *ifs;
7995 if (wpa_s->wpa_state > WPA_SCANNING) {
7996 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7997 "concurrent operation",
7998 wpa_s->conf->p2p_search_delay);
7999 return wpa_s->conf->p2p_search_delay;
8002 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8004 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
8005 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
8006 "delay due to concurrent operation on "
8008 wpa_s->conf->p2p_search_delay,
8010 return wpa_s->conf->p2p_search_delay;
8018 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
8019 struct wpa_ssid *s, const u8 *addr,
8022 struct psk_list_entry *psk, *tmp;
8025 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
8027 if ((iface_addr && !psk->p2p &&
8028 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
8029 (!iface_addr && psk->p2p &&
8030 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
8031 wpa_dbg(wpa_s, MSG_DEBUG,
8032 "P2P: Remove persistent group PSK list entry for "
8034 MAC2STR(psk->addr), psk->p2p);
8035 dl_list_del(&psk->list);
8045 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
8046 const u8 *p2p_dev_addr,
8047 const u8 *psk, size_t psk_len)
8049 struct wpa_ssid *ssid = wpa_s->current_ssid;
8050 struct wpa_ssid *persistent;
8051 struct psk_list_entry *p, *last;
8053 if (psk_len != sizeof(p->psk))
8057 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
8058 " p2p_dev_addr=" MACSTR,
8059 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
8060 if (is_zero_ether_addr(p2p_dev_addr))
8061 p2p_dev_addr = NULL;
8063 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
8067 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
8068 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
8069 /* To be added to persistent group once created */
8070 if (wpa_s->global->add_psk == NULL) {
8071 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
8072 if (wpa_s->global->add_psk == NULL)
8075 p = wpa_s->global->add_psk;
8078 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8081 os_memcpy(p->addr, mac_addr, ETH_ALEN);
8083 os_memcpy(p->psk, psk, psk_len);
8087 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
8088 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
8092 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
8095 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
8099 p = os_zalloc(sizeof(*p));
8104 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8107 os_memcpy(p->addr, mac_addr, ETH_ALEN);
8109 os_memcpy(p->psk, psk, psk_len);
8111 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
8112 (last = dl_list_last(&persistent->psk_list,
8113 struct psk_list_entry, list))) {
8114 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
8115 MACSTR " (p2p=%u) to make room for a new one",
8116 MAC2STR(last->addr), last->p2p);
8117 dl_list_del(&last->list);
8121 wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
8122 p2p_dev_addr ? p2p_dev_addr : mac_addr,
8123 p2p_dev_addr == NULL);
8125 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
8126 MACSTR, MAC2STR(p2p_dev_addr));
8128 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
8131 dl_list_add(&persistent->psk_list, &p->list);
8133 if (wpa_s->p2pdev->conf->update_config &&
8134 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
8135 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
8139 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
8140 struct wpa_ssid *s, const u8 *addr,
8145 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
8146 if (res > 0 && wpa_s->conf->update_config &&
8147 wpa_config_write(wpa_s->confname, wpa_s->conf))
8148 wpa_dbg(wpa_s, MSG_DEBUG,
8149 "P2P: Failed to update configuration");
8153 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
8154 const u8 *peer, int iface_addr)
8156 struct hostapd_data *hapd;
8157 struct hostapd_wpa_psk *psk, *prev, *rem;
8158 struct sta_info *sta;
8160 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
8161 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
8164 /* Remove per-station PSK entry */
8165 hapd = wpa_s->ap_iface->bss[0];
8167 psk = hapd->conf->ssid.wpa_psk;
8169 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
8171 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
8172 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
8173 MACSTR " iface_addr=%d",
8174 MAC2STR(peer), iface_addr);
8176 prev->next = psk->next;
8178 hapd->conf->ssid.wpa_psk = psk->next;
8188 /* Disconnect from group */
8190 sta = ap_get_sta(hapd, peer);
8192 sta = ap_get_sta_p2p(hapd, peer);
8194 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8195 " (iface_addr=%d) from group",
8196 MAC2STR(peer), iface_addr);
8197 hostapd_drv_sta_deauth(hapd, sta->addr,
8198 WLAN_REASON_DEAUTH_LEAVING);
8199 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8204 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8208 struct wpa_supplicant *w;
8209 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
8211 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8213 /* Remove from any persistent group */
8214 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8215 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8218 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8219 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8222 /* Remove from any operating group */
8223 for (w = wpa_s->global->ifaces; w; w = w->next)
8224 wpas_p2p_remove_client_go(w, peer, iface_addr);
8228 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8230 struct wpa_supplicant *wpa_s = eloop_ctx;
8231 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8235 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8237 struct wpa_supplicant *wpa_s = eloop_ctx;
8239 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8240 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8244 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8245 struct wpa_ssid *ssid)
8247 struct wpa_supplicant *iface;
8249 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8250 if (!iface->current_ssid ||
8251 iface->current_ssid->frequency == freq ||
8252 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8253 !iface->current_ssid->p2p_group))
8256 /* Remove the connection with least priority */
8257 if (!wpas_is_p2p_prioritized(iface)) {
8258 /* STA connection has priority over existing
8259 * P2P connection, so remove the interface. */
8260 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8261 eloop_register_timeout(0, 0,
8262 wpas_p2p_group_freq_conflict,
8264 /* If connection in progress is P2P connection, do not
8265 * proceed for the connection. */
8271 /* P2P connection has priority, disable the STA network
8273 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8275 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8276 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8277 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8279 /* If P2P connection is in progress, continue
8292 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8294 struct wpa_ssid *ssid = wpa_s->current_ssid;
8296 if (ssid == NULL || !ssid->p2p_group)
8299 if (wpa_s->p2p_last_4way_hs_fail &&
8300 wpa_s->p2p_last_4way_hs_fail == ssid) {
8301 u8 go_dev_addr[ETH_ALEN];
8302 struct wpa_ssid *persistent;
8304 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8306 ssid->ssid_len) <= 0) {
8307 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8311 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8312 MACSTR, MAC2STR(go_dev_addr));
8313 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
8316 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8317 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8320 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
8321 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8324 wpa_s->p2p_last_4way_hs_fail = NULL;
8326 * Remove the group from a timeout to avoid issues with caller
8327 * continuing to use the interface if this is on a P2P group
8330 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8335 wpa_s->p2p_last_4way_hs_fail = ssid;
8340 #ifdef CONFIG_WPS_NFC
8342 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8350 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8354 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8355 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8362 wpabuf_put_be16(ret, wsc_len);
8364 wpabuf_put_buf(ret, wsc);
8365 wpabuf_put_be16(ret, wpabuf_len(p2p));
8366 wpabuf_put_buf(ret, p2p);
8370 wpa_hexdump_buf(MSG_DEBUG,
8371 "P2P: Generated NFC connection handover message", ret);
8375 tmp = ndef_build_p2p(ret);
8378 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8388 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8389 struct wpa_ssid **ssid, u8 *go_dev_addr)
8391 struct wpa_supplicant *iface;
8394 os_memset(go_dev_addr, 0, ETH_ALEN);
8397 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8398 if (iface->wpa_state < WPA_ASSOCIATING ||
8399 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8400 !iface->current_ssid->p2p_group ||
8401 iface->current_ssid->mode != WPAS_MODE_INFRA)
8404 *ssid = iface->current_ssid;
8406 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8407 return iface->assoc_freq;
8413 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8416 struct wpabuf *wsc, *p2p;
8417 struct wpa_ssid *ssid;
8418 u8 go_dev_addr[ETH_ALEN];
8419 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8421 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8422 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8426 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8427 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8428 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8429 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8433 if (cli_freq == 0) {
8434 wsc = wps_build_nfc_handover_req_p2p(
8435 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8438 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8439 go_dev_addr, ssid ? ssid->ssid : NULL,
8440 ssid ? ssid->ssid_len : 0);
8442 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8446 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8449 struct wpabuf *wsc, *p2p;
8450 struct wpa_ssid *ssid;
8451 u8 go_dev_addr[ETH_ALEN];
8452 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8454 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8457 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8458 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8459 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8462 if (cli_freq == 0) {
8463 wsc = wps_build_nfc_handover_sel_p2p(
8465 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8466 DEV_PW_NFC_CONNECTION_HANDOVER,
8467 wpa_s->conf->wps_nfc_dh_pubkey,
8468 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8471 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8472 go_dev_addr, ssid ? ssid->ssid : NULL,
8473 ssid ? ssid->ssid_len : 0);
8475 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8479 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8480 struct p2p_nfc_params *params)
8482 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8483 "connection handover (freq=%d)",
8486 if (params->go_freq && params->go_ssid_len) {
8487 wpa_s->p2p_wps_method = WPS_NFC;
8488 wpa_s->pending_join_wps_method = WPS_NFC;
8489 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8490 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8492 return wpas_p2p_join_start(wpa_s, params->go_freq,
8494 params->go_ssid_len);
8497 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8498 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8499 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8500 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8501 params->go_ssid_len ? params->go_ssid : NULL,
8502 params->go_ssid_len);
8506 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8507 struct p2p_nfc_params *params, int tag)
8509 int res, persistent;
8510 struct wpa_ssid *ssid;
8512 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8513 "connection handover");
8514 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8515 ssid = wpa_s->current_ssid;
8518 if (ssid->mode != WPAS_MODE_P2P_GO)
8520 if (wpa_s->ap_iface == NULL)
8524 if (wpa_s == NULL) {
8525 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8529 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
8530 DEV_PW_NFC_CONNECTION_HANDOVER &&
8531 !wpa_s->p2pdev->p2p_oob_dev_pw) {
8532 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8535 res = wpas_ap_wps_add_nfc_pw(
8536 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
8537 wpa_s->p2pdev->p2p_oob_dev_pw,
8538 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
8539 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
8544 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8548 if (!params->peer ||
8549 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8552 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8553 " to join", MAC2STR(params->peer->p2p_device_addr));
8555 wpa_s->global->p2p_invite_group = wpa_s;
8556 persistent = ssid->p2p_persistent_group &&
8557 wpas_p2p_get_persistent(wpa_s->p2pdev,
8558 params->peer->p2p_device_addr,
8559 ssid->ssid, ssid->ssid_len);
8560 wpa_s->p2pdev->pending_invite_ssid_id = -1;
8562 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8563 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8564 ssid->ssid, ssid->ssid_len, ssid->frequency,
8565 wpa_s->global->p2p_dev_addr, persistent, 0,
8566 wpa_s->p2pdev->p2p_oob_dev_pw_id);
8570 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8571 struct p2p_nfc_params *params,
8574 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8575 "connection handover");
8576 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8577 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8578 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8579 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8584 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8585 struct p2p_nfc_params *params,
8590 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8591 "connection handover");
8592 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8593 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8594 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8595 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8600 res = wpas_p2p_listen(wpa_s, 60);
8602 p2p_unauthorize(wpa_s->global->p2p,
8603 params->peer->p2p_device_addr);
8610 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8611 const struct wpabuf *data,
8612 int sel, int tag, int forced_freq)
8614 const u8 *pos, *end;
8616 struct p2p_nfc_params params;
8619 os_memset(¶ms, 0, sizeof(params));
8622 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8624 pos = wpabuf_head(data);
8625 end = pos + wpabuf_len(data);
8627 if (end - pos < 2) {
8628 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8632 len = WPA_GET_BE16(pos);
8634 if (len > end - pos) {
8635 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8639 params.wsc_attr = pos;
8640 params.wsc_len = len;
8643 if (end - pos < 2) {
8644 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8648 len = WPA_GET_BE16(pos);
8650 if (len > end - pos) {
8651 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8655 params.p2p_attr = pos;
8656 params.p2p_len = len;
8659 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8660 params.wsc_attr, params.wsc_len);
8661 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8662 params.p2p_attr, params.p2p_len);
8664 wpa_hexdump(MSG_DEBUG,
8665 "P2P: Ignored extra data after P2P attributes",
8669 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8673 if (params.next_step == NO_ACTION)
8676 if (params.next_step == BOTH_GO) {
8677 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8678 MAC2STR(params.peer->p2p_device_addr));
8682 if (params.next_step == PEER_CLIENT) {
8683 if (!is_zero_ether_addr(params.go_dev_addr)) {
8684 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8685 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8687 MAC2STR(params.peer->p2p_device_addr),
8689 MAC2STR(params.go_dev_addr),
8690 wpa_ssid_txt(params.go_ssid,
8691 params.go_ssid_len));
8693 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8694 "peer=" MACSTR " freq=%d",
8695 MAC2STR(params.peer->p2p_device_addr),
8701 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8702 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8703 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8707 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8708 wpa_s->p2p_oob_dev_pw = NULL;
8710 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8711 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8716 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8717 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8718 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8719 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8720 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8721 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8722 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8726 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8727 "peer OOB Device Password Id %u", id);
8730 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8731 "Device Password Id %u", id);
8732 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8733 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8734 params.oob_dev_pw_len -
8735 WPS_OOB_PUBKEY_HASH_LEN - 2);
8736 wpa_s->p2p_oob_dev_pw_id = id;
8737 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8738 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8739 params.oob_dev_pw_len -
8740 WPS_OOB_PUBKEY_HASH_LEN - 2);
8741 if (wpa_s->p2p_oob_dev_pw == NULL)
8744 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8745 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8746 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8749 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8750 "without Device Password");
8751 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8754 switch (params.next_step) {
8758 /* already covered above */
8761 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8763 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8765 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8767 /* TODO: use own OOB Dev Pw */
8768 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8775 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8776 const struct wpabuf *data, int forced_freq)
8778 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8781 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8785 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8786 const struct wpabuf *req,
8787 const struct wpabuf *sel, int forced_freq)
8792 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8795 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8797 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8798 wpabuf_head(req), wpabuf_len(req));
8799 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8800 wpabuf_head(sel), wpabuf_len(sel));
8802 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8803 tmp = ndef_parse_p2p(init ? sel : req);
8805 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8809 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8817 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8820 int go_intent = wpa_s->conf->p2p_go_intent;
8821 struct wpa_supplicant *iface;
8823 if (wpa_s->global->p2p == NULL)
8827 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8828 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8830 if (!iface->ap_iface)
8832 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8834 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8836 if (wpa_s->p2p_nfc_tag_enabled)
8837 wpas_p2p_remove_pending_group_interface(wpa_s);
8838 wpa_s->p2p_nfc_tag_enabled = 0;
8842 if (wpa_s->global->p2p_disabled)
8845 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8846 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8847 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8848 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8849 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8850 "to allow static handover cases");
8854 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8856 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8857 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8858 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8859 if (wpa_s->p2p_oob_dev_pw == NULL)
8861 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8863 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8864 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8866 * P2P Group Interface present and the command came on group
8867 * interface, so enable the token for the current interface.
8869 wpa_s->create_p2p_iface = 0;
8871 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8874 if (wpa_s->create_p2p_iface) {
8875 enum wpa_driver_if_type iftype;
8876 /* Prepare to add a new interface for the group */
8877 iftype = WPA_IF_P2P_GROUP;
8878 if (go_intent == 15)
8879 iftype = WPA_IF_P2P_GO;
8880 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8881 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8882 "interface for the group");
8886 if_addr = wpa_s->pending_interface_addr;
8887 } else if (wpa_s->p2p_mgmt)
8888 if_addr = wpa_s->parent->own_addr;
8890 if_addr = wpa_s->own_addr;
8892 wpa_s->p2p_nfc_tag_enabled = enabled;
8894 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8895 struct hostapd_data *hapd;
8896 if (iface->ap_iface == NULL)
8898 hapd = iface->ap_iface->bss[0];
8899 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8900 hapd->conf->wps_nfc_dh_pubkey =
8901 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8902 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8903 hapd->conf->wps_nfc_dh_privkey =
8904 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8905 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8906 hapd->conf->wps_nfc_dev_pw =
8907 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8908 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8910 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8911 wpa_dbg(iface, MSG_DEBUG,
8912 "P2P: Failed to enable NFC Tag for GO");
8915 p2p_set_authorized_oob_dev_pw_id(
8916 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8922 #endif /* CONFIG_WPS_NFC */
8925 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8926 struct wpa_used_freq_data *freqs,
8929 u8 curr_chan, cand, chan;
8933 * If possible, optimize the Listen channel to be a channel that is
8934 * already used by one of the other interfaces.
8936 if (!wpa_s->conf->p2p_optimize_listen_chan)
8939 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8942 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8943 for (i = 0, cand = 0; i < num; i++) {
8944 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8945 if (curr_chan == chan) {
8950 if (chan == 1 || chan == 6 || chan == 11)
8955 wpa_dbg(wpa_s, MSG_DEBUG,
8956 "P2P: Update Listen channel to %u based on operating channel",
8958 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8963 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8965 struct hostapd_config *conf;
8966 struct p2p_go_neg_results params;
8967 struct csa_settings csa_settings;
8968 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8969 int old_freq = current_ssid->frequency;
8972 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8973 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8978 * TODO: This function may not always work correctly. For example,
8979 * when we have a running GO and a BSS on a DFS channel.
8981 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8982 wpa_dbg(wpa_s, MSG_DEBUG,
8983 "P2P CSA: Failed to select new frequency for GO");
8987 if (current_ssid->frequency == params.freq) {
8988 wpa_dbg(wpa_s, MSG_DEBUG,
8989 "P2P CSA: Selected same frequency - not moving GO");
8993 conf = hostapd_config_defaults();
8995 wpa_dbg(wpa_s, MSG_DEBUG,
8996 "P2P CSA: Failed to allocate default config");
9000 current_ssid->frequency = params.freq;
9001 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
9002 wpa_dbg(wpa_s, MSG_DEBUG,
9003 "P2P CSA: Failed to create new GO config");
9008 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
9009 wpa_dbg(wpa_s, MSG_DEBUG,
9010 "P2P CSA: CSA to a different band is not supported");
9015 os_memset(&csa_settings, 0, sizeof(csa_settings));
9016 csa_settings.cs_count = P2P_GO_CSA_COUNT;
9017 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
9018 csa_settings.freq_params.freq = params.freq;
9019 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
9020 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
9021 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
9023 if (conf->ieee80211ac) {
9024 int freq1 = 0, freq2 = 0;
9027 if (ieee80211_freq_to_channel_ext(params.freq,
9028 conf->secondary_channel,
9029 conf->vht_oper_chwidth,
9031 NUM_HOSTAPD_MODES) {
9032 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
9037 if (conf->vht_oper_centr_freq_seg0_idx)
9038 freq1 = ieee80211_chan_to_freq(
9040 conf->vht_oper_centr_freq_seg0_idx);
9042 if (conf->vht_oper_centr_freq_seg1_idx)
9043 freq2 = ieee80211_chan_to_freq(
9045 conf->vht_oper_centr_freq_seg1_idx);
9047 if (freq1 < 0 || freq2 < 0) {
9048 wpa_dbg(wpa_s, MSG_DEBUG,
9049 "P2P CSA: Selected invalid VHT center freqs");
9054 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
9055 csa_settings.freq_params.center_freq1 = freq1;
9056 csa_settings.freq_params.center_freq2 = freq2;
9058 switch (conf->vht_oper_chwidth) {
9059 case VHT_CHANWIDTH_80MHZ:
9060 case VHT_CHANWIDTH_80P80MHZ:
9061 csa_settings.freq_params.bandwidth = 80;
9063 case VHT_CHANWIDTH_160MHZ:
9064 csa_settings.freq_params.bandwidth = 160;
9069 ret = ap_switch_channel(wpa_s, &csa_settings);
9071 current_ssid->frequency = old_freq;
9072 hostapd_config_free(conf);
9077 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
9079 struct p2p_go_neg_results params;
9080 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
9082 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
9084 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
9085 current_ssid->frequency);
9087 /* Stop the AP functionality */
9088 /* TODO: Should do this in a way that does not indicated to possible
9089 * P2P Clients in the group that the group is terminated. */
9090 wpa_supplicant_ap_deinit(wpa_s);
9092 /* Reselect the GO frequency */
9093 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
9094 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
9095 wpas_p2p_group_delete(wpa_s,
9096 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
9099 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
9103 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
9104 wpa_printf(MSG_DEBUG,
9105 "P2P: Selected freq (%u MHz) is not valid for P2P",
9107 wpas_p2p_group_delete(wpa_s,
9108 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
9112 /* Update the frequency */
9113 current_ssid->frequency = params.freq;
9114 wpa_s->connect_without_scan = current_ssid;
9115 wpa_s->reassociate = 1;
9116 wpa_s->disconnected = 0;
9117 wpa_supplicant_req_scan(wpa_s, 0, 0);
9121 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
9123 struct wpa_supplicant *wpa_s = eloop_ctx;
9125 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
9128 wpas_p2p_go_update_common_freqs(wpa_s);
9130 /* Do not move GO in the middle of a CSA */
9131 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9132 wpa_printf(MSG_DEBUG,
9133 "P2P: CSA is in progress - not moving GO");
9138 * First, try a channel switch flow. If it is not supported or fails,
9139 * take down the GO and bring it up again.
9141 if (wpas_p2p_move_go_csa(wpa_s) < 0)
9142 wpas_p2p_move_go_no_csa(wpa_s);
9146 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
9148 struct wpa_supplicant *wpa_s = eloop_ctx;
9149 struct wpa_used_freq_data *freqs = NULL;
9150 unsigned int num = wpa_s->num_multichan_concurrent;
9152 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
9156 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
9158 /* Previous attempt to move a GO was not possible -- try again. */
9159 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
9160 WPAS_P2P_CHANNEL_UPDATE_ANY);
9167 * Consider moving a GO from its currently used frequency:
9168 * 1. It is possible that due to regulatory consideration the frequency
9169 * can no longer be used and there is a need to evacuate the GO.
9170 * 2. It is possible that due to MCC considerations, it would be preferable
9171 * to move the GO to a channel that is currently used by some other
9172 * station interface.
9174 * In case a frequency that became invalid is once again valid, cancel a
9175 * previously initiated GO frequency change.
9177 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
9178 struct wpa_used_freq_data *freqs,
9181 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
9182 unsigned int timeout;
9186 wpas_p2p_go_update_common_freqs(wpa_s);
9188 freq = wpa_s->current_ssid->frequency;
9189 dfs_offload = (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
9190 ieee80211_is_dfs(freq, wpa_s->hw.modes, wpa_s->hw.num_modes);
9191 for (i = 0, invalid_freq = 0; i < num; i++) {
9192 if (freqs[i].freq == freq) {
9193 flags = freqs[i].flags;
9195 /* The channel is invalid, must change it */
9196 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
9198 wpa_dbg(wpa_s, MSG_DEBUG,
9199 "P2P: Freq=%d MHz no longer valid for GO",
9203 } else if (freqs[i].flags == 0) {
9204 /* Freq is not used by any other station interface */
9206 } else if (!p2p_supported_freq(wpa_s->global->p2p,
9207 freqs[i].freq) && !dfs_offload) {
9208 /* Freq is not valid for P2P use cases */
9210 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9211 P2P_GO_FREQ_MOVE_SCM) {
9213 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9214 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
9215 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9217 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
9218 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9219 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9220 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9222 } else if ((wpa_s->drv_flags &
9223 WPA_DRIVER_FLAGS_AP_CSA) &&
9224 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9228 * We do not support CSA between bands, so move
9229 * GO only within the same band.
9231 if (wpa_s->ap_iface->current_mode->mode ==
9232 ieee80211_freq_to_chan(freqs[i].freq,
9239 wpa_dbg(wpa_s, MSG_DEBUG,
9240 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9241 invalid_freq, policy_move, flags);
9244 * The channel is valid, or we are going to have a policy move, so
9247 if (!invalid_freq || policy_move) {
9248 wpa_dbg(wpa_s, MSG_DEBUG,
9249 "P2P: Cancel a GO move from freq=%d MHz", freq);
9250 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9252 if (wpas_p2p_in_progress(wpa_s)) {
9253 wpa_dbg(wpa_s, MSG_DEBUG,
9254 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9255 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9257 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9258 wpas_p2p_reconsider_moving_go,
9264 if (!invalid_freq && (!policy_move || flags != 0)) {
9265 wpa_dbg(wpa_s, MSG_DEBUG,
9266 "P2P: Not initiating a GO frequency change");
9271 * Do not consider moving GO if it is in the middle of a CSA. When the
9272 * CSA is finished this flow should be retriggered.
9274 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9275 wpa_dbg(wpa_s, MSG_DEBUG,
9276 "P2P: Not initiating a GO frequency change - CSA is in progress");
9280 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9281 timeout = P2P_GO_FREQ_CHANGE_TIME;
9285 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9287 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9288 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9292 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9293 struct wpa_used_freq_data *freqs,
9295 enum wpas_p2p_channel_update_trig trig)
9297 struct wpa_supplicant *ifs;
9299 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9303 * Travers all the radio interfaces, and for each GO interface, check
9304 * if there is a need to move the GO from the frequency it is using,
9305 * or in case the frequency is valid again, cancel the evacuation flow.
9307 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9309 if (ifs->current_ssid == NULL ||
9310 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9314 * The GO was just started or completed channel switch, no need
9318 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9319 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9320 wpa_dbg(wpa_s, MSG_DEBUG,
9321 "P2P: GO move - schedule re-consideration");
9322 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9323 wpas_p2p_reconsider_moving_go,
9328 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9333 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9335 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9338 wpas_p2p_update_channel_list(wpa_s,
9339 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9343 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9345 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9346 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9347 "the management interface is being removed");
9348 wpas_p2p_deinit_global(wpa_s->global);
9353 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9355 if (wpa_s->ap_iface->bss)
9356 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9357 wpas_p2p_group_deinit(wpa_s);
9361 int wpas_p2p_lo_start(struct wpa_supplicant *wpa_s, unsigned int freq,
9362 unsigned int period, unsigned int interval,
9365 struct p2p_data *p2p = wpa_s->global->p2p;
9367 size_t dev_types_len;
9371 if (wpa_s->p2p_lo_started) {
9372 wpa_dbg(wpa_s, MSG_DEBUG,
9373 "P2P Listen offload is already started");
9377 if (wpa_s->global->p2p == NULL ||
9378 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) {
9379 wpa_printf(MSG_DEBUG, "P2P: Listen offload not supported");
9383 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
9384 wpa_printf(MSG_ERROR, "P2P: Input channel not supported: %u",
9389 /* Get device type */
9390 dev_types_len = (wpa_s->conf->num_sec_device_types + 1) *
9392 device_types = os_malloc(dev_types_len);
9395 os_memcpy(device_types, wpa_s->conf->device_type, WPS_DEV_TYPE_LEN);
9396 os_memcpy(&device_types[WPS_DEV_TYPE_LEN], wpa_s->conf->sec_device_type,
9397 wpa_s->conf->num_sec_device_types * WPS_DEV_TYPE_LEN);
9399 /* Get Probe Response IE(s) */
9400 buf = p2p_build_probe_resp_template(p2p, freq);
9402 os_free(device_types);
9406 ret = wpa_drv_p2p_lo_start(wpa_s, freq, period, interval, count,
9407 device_types, dev_types_len,
9408 wpabuf_mhead_u8(buf), wpabuf_len(buf));
9410 wpa_dbg(wpa_s, MSG_DEBUG,
9411 "P2P: Failed to start P2P listen offload");
9413 os_free(device_types);
9417 wpa_s->p2p_lo_started = 1;
9419 /* Stop current P2P listen if any */
9420 wpas_stop_listen(wpa_s);
9427 int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s)
9431 if (!wpa_s->p2p_lo_started)
9434 ret = wpa_drv_p2p_lo_stop(wpa_s);
9436 wpa_dbg(wpa_s, MSG_DEBUG,
9437 "P2P: Failed to stop P2P listen offload");
9439 wpa_s->p2p_lo_started = 0;