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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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 ret = wpa_drv_scan(wpa_s, params);
311 wpa_scan_free_params(params);
314 radio_work_done(work);
315 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
319 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
320 os_get_reltime(&wpa_s->scan_trigger_time);
321 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
322 wpa_s->own_scan_requested = 1;
323 wpa_s->p2p_scan_work = work;
327 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
330 if (wpa_s->global->p2p_24ghz_social_channels &&
331 (freq == 2412 || freq == 2437 || freq == 2462)) {
333 * Search all social channels regardless of whether these have
334 * been disabled for P2P operating channel use to avoid missing
339 return p2p_supported_freq(wpa_s->global->p2p, freq);
343 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
344 unsigned int num_req_dev_types,
345 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
347 struct wpa_supplicant *wpa_s = ctx;
348 struct wpa_driver_scan_params *params = NULL;
349 struct wpabuf *wps_ie, *ies;
350 unsigned int num_channels = 0;
351 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
356 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
359 if (wpa_s->p2p_scan_work) {
360 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
364 params = os_zalloc(sizeof(*params));
368 /* P2P Wildcard SSID */
369 params->num_ssids = 1;
370 n = os_malloc(P2P_WILDCARD_SSID_LEN);
373 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
374 params->ssids[0].ssid = n;
375 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
377 wpa_s->wps->dev.p2p = 1;
378 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
379 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
380 num_req_dev_types, req_dev_types);
385 case P2P_SCAN_SOCIAL:
386 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
388 if (params->freqs == NULL)
390 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
391 if (wpas_p2p_search_social_channel(
392 wpa_s, social_channels_freq[i]))
393 params->freqs[num_channels++] =
394 social_channels_freq[i];
396 params->freqs[num_channels++] = 0;
400 case P2P_SCAN_SPECIFIC:
401 params->freqs = os_calloc(2, sizeof(int));
402 if (params->freqs == NULL)
404 params->freqs[0] = freq;
405 params->freqs[1] = 0;
407 case P2P_SCAN_SOCIAL_PLUS_ONE:
408 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
410 if (params->freqs == NULL)
412 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
413 if (wpas_p2p_search_social_channel(
414 wpa_s, social_channels_freq[i]))
415 params->freqs[num_channels++] =
416 social_channels_freq[i];
418 if (p2p_supported_freq(wpa_s->global->p2p, freq))
419 params->freqs[num_channels++] = freq;
420 params->freqs[num_channels++] = 0;
424 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
425 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
430 wpabuf_put_buf(ies, wps_ie);
433 bands = wpas_get_bands(wpa_s, params->freqs);
434 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id, bands);
436 params->p2p_probe = 1;
437 n = os_malloc(wpabuf_len(ies));
442 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
443 params->extra_ies = n;
444 params->extra_ies_len = wpabuf_len(ies);
447 radio_remove_works(wpa_s, "p2p-scan", 0);
448 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
454 wpa_scan_free_params(params);
459 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
461 switch (p2p_group_interface) {
462 case P2P_GROUP_INTERFACE_PENDING:
463 return WPA_IF_P2P_GROUP;
464 case P2P_GROUP_INTERFACE_GO:
465 return WPA_IF_P2P_GO;
466 case P2P_GROUP_INTERFACE_CLIENT:
467 return WPA_IF_P2P_CLIENT;
470 return WPA_IF_P2P_GROUP;
474 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
476 size_t ssid_len, int *go)
480 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
481 for (s = wpa_s->conf->ssid; s; s = s->next) {
482 if (s->disabled != 0 || !s->p2p_group ||
483 s->ssid_len != ssid_len ||
484 os_memcmp(ssid, s->ssid, ssid_len) != 0)
486 if (s->mode == WPAS_MODE_P2P_GO &&
487 s != wpa_s->current_ssid)
490 *go = s->mode == WPAS_MODE_P2P_GO;
499 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
501 struct wpa_supplicant *wpa_s = eloop_ctx;
502 wpa_printf(MSG_DEBUG,
503 "P2P: Complete previously requested removal of %s",
505 wpas_p2p_disconnect(wpa_s);
509 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
510 struct wpa_supplicant *calling_wpa_s)
512 if (calling_wpa_s == wpa_s && wpa_s &&
513 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
515 * The calling wpa_s instance is going to be removed. Do that
516 * from an eloop callback to keep the instance available until
517 * the caller has returned. This my be needed, e.g., to provide
518 * control interface responses on the per-interface socket.
520 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
526 return wpas_p2p_disconnect(wpa_s);
530 /* Determine total number of clients in active groups where we are the GO */
531 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
533 unsigned int count = 0;
536 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
537 for (s = wpa_s->conf->ssid; s; s = s->next) {
538 wpa_printf(MSG_DEBUG,
539 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
540 wpa_s, s, s->disabled, s->p2p_group,
542 if (!s->disabled && s->p2p_group &&
543 s->mode == WPAS_MODE_P2P_GO) {
544 count += p2p_get_group_num_members(
554 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
556 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
557 !wpa_s->current_ssid->disabled &&
558 wpa_s->current_ssid->p2p_group &&
559 wpa_s->current_ssid->p2p_persistent_group;
563 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
565 return p2p_is_active_persistent_group(wpa_s) &&
566 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
570 /* Find an interface for a P2P group where we are the GO */
571 static struct wpa_supplicant *
572 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
574 struct wpa_supplicant *save = NULL;
579 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
580 if (!p2p_is_active_persistent_go(wpa_s))
583 /* Prefer a group with connected clients */
584 if (p2p_get_group_num_members(wpa_s->p2p_group))
589 /* No group with connected clients, so pick the one without (if any) */
594 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
596 return p2p_is_active_persistent_group(wpa_s) &&
597 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
601 /* Find an interface for a P2P group where we are the P2P Client */
602 static struct wpa_supplicant *
603 wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
605 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
606 if (p2p_is_active_persistent_cli(wpa_s))
614 /* Find a persistent group where we are the GO */
615 static struct wpa_ssid *
616 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
620 for (s = wpa_s->conf->ssid; s; s = s->next) {
621 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
629 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
630 unsigned int *force_freq,
631 unsigned int *pref_freq)
633 struct wpa_supplicant *wpa_s = ctx;
635 u8 conncap = P2PS_SETUP_NONE;
636 unsigned int owned_members = 0;
637 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
638 struct wpa_ssid *persistent_go;
639 int p2p_no_group_iface;
640 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
642 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
649 size = P2P_MAX_PREF_CHANNELS;
650 if (force_freq && pref_freq &&
651 !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
652 (int *) pref_freq, 0, pref_freq_list, &size))
653 wpas_p2p_set_own_freq_preference(wpa_s,
654 *force_freq ? *force_freq :
658 * For non-concurrent capable devices:
659 * If persistent_go, then no new.
660 * If GO, then no client.
661 * If client, then no GO.
663 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
665 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
666 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
667 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
668 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
670 wpa_printf(MSG_DEBUG,
671 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
672 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
674 /* If not concurrent, restrict our choices */
675 if (p2p_no_group_iface) {
676 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
679 return P2PS_SETUP_NONE;
682 if (role == P2PS_SETUP_CLIENT ||
683 incoming == P2PS_SETUP_GROUP_OWNER ||
684 p2p_client_limit_reached(go_wpa_s->p2p_group))
685 return P2PS_SETUP_NONE;
687 return P2PS_SETUP_GROUP_OWNER;
691 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
693 return P2PS_SETUP_GROUP_OWNER |
695 if (incoming == P2PS_SETUP_NEW) {
698 if (os_get_random(&r, sizeof(r)) < 0 ||
700 return P2PS_SETUP_CLIENT;
701 return P2PS_SETUP_GROUP_OWNER;
707 /* If a required role has been specified, handle it here */
708 if (role && role != P2PS_SETUP_NEW) {
710 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
711 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
713 * Peer has an active GO, so if the role allows it and
714 * we do not have any active roles, become client.
716 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
718 return P2PS_SETUP_CLIENT;
722 case P2PS_SETUP_NONE:
727 case P2PS_SETUP_GROUP_OWNER:
729 * Must be a complimentary role - cannot be a client to
730 * more than one peer.
732 if (incoming == role || cli_wpa_s)
733 return P2PS_SETUP_NONE;
735 return P2PS_SETUP_CLIENT;
737 case P2PS_SETUP_CLIENT:
738 /* Must be a complimentary role */
739 if (incoming != role) {
740 conncap = P2PS_SETUP_GROUP_OWNER;
745 return P2PS_SETUP_NONE;
750 * For now, we only will support ownership of one group, and being a
751 * client of one group. Therefore, if we have either an existing GO
752 * group, or an existing client group, we will not do a new GO
753 * negotiation, but rather try to re-use the existing groups.
756 case P2PS_SETUP_NONE:
759 conncap = P2PS_SETUP_GROUP_OWNER;
760 else if (!owned_members)
761 conncap = P2PS_SETUP_NEW;
762 else if (incoming == P2PS_SETUP_NONE)
763 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
765 conncap = P2PS_SETUP_CLIENT;
768 case P2PS_SETUP_CLIENT:
769 conncap = P2PS_SETUP_GROUP_OWNER;
772 case P2PS_SETUP_GROUP_OWNER:
774 conncap = P2PS_SETUP_CLIENT;
777 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
778 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
780 conncap = P2PS_SETUP_GROUP_OWNER;
784 if (os_get_random(&r, sizeof(r)) < 0 ||
786 conncap = P2PS_SETUP_CLIENT;
788 conncap = P2PS_SETUP_GROUP_OWNER;
793 return P2PS_SETUP_NONE;
797 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
798 (!incoming && (conncap & P2PS_SETUP_NEW))) {
799 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
800 conncap &= ~P2PS_SETUP_GROUP_OWNER;
802 s = wpas_p2p_get_persistent_go(wpa_s);
803 if (!s && !go_wpa_s && p2p_no_group_iface) {
804 p2p_set_intended_addr(wpa_s->global->p2p,
806 wpa_s->parent->own_addr :
808 } else if (!s && !go_wpa_s) {
809 if (wpas_p2p_add_group_interface(wpa_s,
810 WPA_IF_P2P_GO) < 0) {
811 wpa_printf(MSG_ERROR,
812 "P2P: Failed to allocate a new interface for the group");
813 return P2PS_SETUP_NONE;
815 wpa_s->global->pending_group_iface_for_p2ps = 1;
816 p2p_set_intended_addr(wpa_s->global->p2p,
817 wpa_s->pending_interface_addr);
825 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
826 enum p2p_group_removal_reason removal_reason)
828 struct wpa_ssid *ssid;
832 ssid = wpa_s->current_ssid;
835 * The current SSID was not known, but there may still be a
836 * pending P2P group interface waiting for provisioning or a
837 * P2P group that is trying to reconnect.
839 ssid = wpa_s->conf->ssid;
841 if (ssid->p2p_group && ssid->disabled != 2)
846 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
848 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
853 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
855 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
856 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
857 wpa_s->reassociate = 0;
858 wpa_s->disconnected = 1;
863 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
864 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
866 if (os_strcmp(gtype, "client") == 0) {
867 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
868 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
870 wpa_printf(MSG_DEBUG,
871 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
872 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
873 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
878 if (wpa_s->cross_connect_in_use) {
879 wpa_s->cross_connect_in_use = 0;
880 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
881 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
882 wpa_s->ifname, wpa_s->cross_connect_uplink);
884 switch (removal_reason) {
885 case P2P_GROUP_REMOVAL_REQUESTED:
886 reason = " reason=REQUESTED";
888 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
889 reason = " reason=FORMATION_FAILED";
891 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
892 reason = " reason=IDLE";
894 case P2P_GROUP_REMOVAL_UNAVAILABLE:
895 reason = " reason=UNAVAILABLE";
897 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
898 reason = " reason=GO_ENDING_SESSION";
900 case P2P_GROUP_REMOVAL_PSK_FAILURE:
901 reason = " reason=PSK_FAILURE";
903 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
904 reason = " reason=FREQ_CONFLICT";
910 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
911 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
912 P2P_EVENT_GROUP_REMOVED "%s %s%s",
913 wpa_s->ifname, gtype, reason);
916 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
917 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
918 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
919 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
920 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
921 wpa_s->p2pdev, NULL) > 0) {
922 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
924 wpa_s->p2p_in_provisioning = 0;
925 wpas_p2p_group_formation_failed(wpa_s, 1);
928 wpa_s->p2p_in_invitation = 0;
929 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
930 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
933 * Make sure wait for the first client does not remain active after the
934 * group has been removed.
936 wpa_s->global->p2p_go_wait_client.sec = 0;
938 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
939 struct wpa_global *global;
941 enum wpa_driver_if_type type;
942 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
944 global = wpa_s->global;
945 ifname = os_strdup(wpa_s->ifname);
946 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
947 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
948 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
949 wpa_s = global->ifaces;
951 wpa_drv_if_remove(wpa_s, type, ifname);
957 * The primary interface was used for P2P group operations, so
958 * need to reset its p2pdev.
960 wpa_s->p2pdev = wpa_s->parent;
962 if (!wpa_s->p2p_go_group_formation_completed) {
963 wpa_s->global->p2p_group_formation = NULL;
964 wpa_s->p2p_in_provisioning = 0;
967 wpa_s->show_group_started = 0;
968 os_free(wpa_s->go_params);
969 wpa_s->go_params = NULL;
971 os_free(wpa_s->p2p_group_common_freqs);
972 wpa_s->p2p_group_common_freqs = NULL;
973 wpa_s->p2p_group_common_freqs_num = 0;
975 wpa_s->waiting_presence_resp = 0;
977 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
978 if (ssid && (ssid->p2p_group ||
979 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
980 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
982 if (ssid == wpa_s->current_ssid) {
983 wpa_sm_set_config(wpa_s->wpa, NULL);
984 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
985 wpa_s->current_ssid = NULL;
988 * Networks objects created during any P2P activities are not
989 * exposed out as they might/will confuse certain non-P2P aware
990 * applications since these network objects won't behave like
993 * Likewise, we don't send out network removed signals for such
996 wpa_config_remove_network(wpa_s->conf, id);
997 wpa_supplicant_clear_status(wpa_s);
998 wpa_supplicant_cancel_sched_scan(wpa_s);
1000 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
1003 if (wpa_s->ap_iface)
1004 wpa_supplicant_ap_deinit(wpa_s);
1006 wpa_drv_deinit_p2p_cli(wpa_s);
1008 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1014 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1016 const u8 *ssid, size_t ssid_len)
1018 struct wpa_bss *bss;
1024 if (wpa_s->go_params)
1025 bssid = wpa_s->go_params->peer_interface_addr;
1027 bssid = wpa_s->bssid;
1029 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
1030 if (bss == NULL && wpa_s->go_params &&
1031 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1032 bss = wpa_bss_get_p2p_dev_addr(
1033 wpa_s, wpa_s->go_params->peer_device_addr);
1035 u8 iface_addr[ETH_ALEN];
1036 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1038 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1041 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1042 "group is persistent - BSS " MACSTR " not found",
1047 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1049 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1050 P2P_IE_VENDOR_TYPE);
1052 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1053 "group is persistent - BSS " MACSTR
1054 " did not include P2P IE", MAC2STR(bssid));
1055 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1056 (u8 *) (bss + 1), bss->ie_len);
1057 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1058 ((u8 *) bss + 1) + bss->ie_len,
1059 bss->beacon_ie_len);
1063 group_capab = p2p_get_group_capab(p2p);
1064 addr = p2p_get_go_dev_addr(p2p);
1065 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1066 "group_capab=0x%x", group_capab);
1068 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1069 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1072 os_memset(go_dev_addr, 0, ETH_ALEN);
1075 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1076 "go_dev_addr=" MACSTR,
1077 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1079 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1083 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1084 struct wpa_ssid *ssid,
1085 const u8 *go_dev_addr)
1090 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1091 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1092 for (s = wpa_s->conf->ssid; s; s = s->next) {
1093 if (s->disabled == 2 &&
1094 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1095 s->ssid_len == ssid->ssid_len &&
1096 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1101 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1103 if (ssid->passphrase && !s->passphrase)
1105 else if (ssid->passphrase && s->passphrase &&
1106 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1109 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1112 s = wpa_config_add_network(wpa_s->conf);
1117 * Instead of network_added we emit persistent_group_added
1118 * notification. Also to keep the defense checks in
1119 * persistent_group obj registration method, we set the
1120 * relevant flags in s to designate it as a persistent group.
1123 s->p2p_persistent_group = 1;
1124 wpas_notify_persistent_group_added(wpa_s, s);
1125 wpa_config_set_network_defaults(s);
1129 s->p2p_persistent_group = 1;
1132 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1133 s->mode = ssid->mode;
1134 s->auth_alg = WPA_AUTH_ALG_OPEN;
1135 s->key_mgmt = WPA_KEY_MGMT_PSK;
1136 s->proto = WPA_PROTO_RSN;
1137 s->pbss = ssid->pbss;
1138 s->pairwise_cipher = ssid->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
1140 if (ssid->passphrase) {
1141 os_free(s->passphrase);
1142 s->passphrase = os_strdup(ssid->passphrase);
1144 if (ssid->psk_set) {
1146 os_memcpy(s->psk, ssid->psk, 32);
1148 if (s->passphrase && !s->psk_set)
1149 wpa_config_update_psk(s);
1150 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1152 s->ssid = os_malloc(ssid->ssid_len);
1155 s->ssid_len = ssid->ssid_len;
1156 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1158 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1159 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1160 wpa_s->global->add_psk = NULL;
1164 if (changed && wpa_s->conf->update_config &&
1165 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1166 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1173 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1176 struct wpa_ssid *ssid, *s;
1180 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1182 ssid = wpa_s->current_ssid;
1183 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1184 !ssid->p2p_persistent_group)
1187 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1188 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1191 if (s->ssid_len == ssid->ssid_len &&
1192 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1199 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1200 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1204 if (i == s->num_p2p_clients - 1)
1205 return; /* already the most recent entry */
1207 /* move the entry to mark it most recent */
1208 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1209 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1210 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1211 os_memcpy(s->p2p_client_list +
1212 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1214 os_memset(s->p2p_client_list +
1215 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1221 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1222 n = os_realloc_array(s->p2p_client_list,
1223 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1226 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1228 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1230 s->p2p_client_list = n;
1231 s->num_p2p_clients++;
1232 } else if (!found && s->p2p_client_list) {
1233 /* Not enough room for an additional entry - drop the oldest
1235 os_memmove(s->p2p_client_list,
1236 s->p2p_client_list + 2 * ETH_ALEN,
1237 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1238 os_memcpy(s->p2p_client_list +
1239 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1241 os_memset(s->p2p_client_list +
1242 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1246 if (p2p_wpa_s->conf->update_config &&
1247 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1248 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1252 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1253 int go, struct wpa_ssid *ssid, int freq,
1254 const u8 *psk, const char *passphrase,
1255 const u8 *go_dev_addr, int persistent,
1258 const char *ssid_txt;
1262 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1267 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1271 if (passphrase && passphrase[0] == '\0')
1275 * Include PSK/passphrase only in the control interface message and
1276 * leave it out from the debug log entry.
1278 wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
1279 P2P_EVENT_GROUP_STARTED
1280 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1282 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1283 psk ? " psk=" : "", psk_txt,
1284 passphrase ? " passphrase=\"" : "",
1285 passphrase ? passphrase : "",
1286 passphrase ? "\"" : "",
1287 MAC2STR(go_dev_addr),
1288 persistent ? " [PERSISTENT]" : "", extra);
1289 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1290 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1291 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1292 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1297 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1298 int success, int already_deleted)
1300 struct wpa_ssid *ssid;
1303 u8 go_dev_addr[ETH_ALEN];
1306 * This callback is likely called for the main interface. Update wpa_s
1307 * to use the group interface if a new interface was created for the
1310 if (wpa_s->global->p2p_group_formation)
1311 wpa_s = wpa_s->global->p2p_group_formation;
1312 if (wpa_s->p2p_go_group_formation_completed) {
1313 wpa_s->global->p2p_group_formation = NULL;
1314 wpa_s->p2p_in_provisioning = 0;
1316 wpa_s->p2p_in_invitation = 0;
1317 wpa_s->group_formation_reported = 1;
1320 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1321 P2P_EVENT_GROUP_FORMATION_FAILURE);
1322 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1323 if (already_deleted)
1325 wpas_p2p_group_delete(wpa_s,
1326 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1330 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1331 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1333 ssid = wpa_s->current_ssid;
1334 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1335 ssid->mode = WPAS_MODE_P2P_GO;
1336 p2p_group_notif_formation_done(wpa_s->p2p_group);
1337 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1342 client = ssid->mode == WPAS_MODE_INFRA;
1343 if (ssid->mode == WPAS_MODE_P2P_GO) {
1344 persistent = ssid->p2p_persistent_group;
1345 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1348 persistent = wpas_p2p_persistent_group(wpa_s,
1353 client = wpa_s->p2p_group_interface ==
1354 P2P_GROUP_INTERFACE_CLIENT;
1355 os_memset(go_dev_addr, 0, ETH_ALEN);
1358 wpa_s->show_group_started = 0;
1361 * Indicate event only after successfully completed 4-way
1362 * handshake, i.e., when the interface is ready for data
1365 wpa_s->show_group_started = 1;
1367 wpas_p2p_group_started(wpa_s, 1, ssid,
1368 ssid ? ssid->frequency : 0,
1369 ssid && ssid->passphrase == NULL &&
1370 ssid->psk_set ? ssid->psk : NULL,
1371 ssid ? ssid->passphrase : NULL,
1372 go_dev_addr, persistent, "");
1373 wpas_p2p_cross_connect_setup(wpa_s);
1374 wpas_p2p_set_group_idle_timeout(wpa_s);
1378 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
1381 os_free(wpa_s->global->add_psk);
1382 wpa_s->global->add_psk = NULL;
1386 wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 0);
1387 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1392 struct send_action_work {
1398 unsigned int wait_time;
1403 static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1405 struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1407 wpa_printf(MSG_DEBUG,
1408 "P2P: Free Action frame radio work @%p (freq=%u dst="
1409 MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1410 wpa_s->p2p_send_action_work, awork->freq,
1411 MAC2STR(awork->dst), MAC2STR(awork->src),
1412 MAC2STR(awork->bssid), awork->wait_time);
1413 wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1414 awork->buf, awork->len);
1416 wpa_s->p2p_send_action_work->ctx = NULL;
1417 radio_work_done(wpa_s->p2p_send_action_work);
1418 wpa_s->p2p_send_action_work = NULL;
1422 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1425 struct wpa_supplicant *wpa_s = eloop_ctx;
1427 if (!wpa_s->p2p_send_action_work)
1430 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1431 wpas_p2p_free_send_action_work(wpa_s);
1435 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1437 if (wpa_s->p2p_send_action_work) {
1438 struct send_action_work *awork;
1440 awork = wpa_s->p2p_send_action_work->ctx;
1441 wpa_printf(MSG_DEBUG,
1442 "P2P: Clear Action TX work @%p (wait_time=%u)",
1443 wpa_s->p2p_send_action_work, awork->wait_time);
1444 if (awork->wait_time == 0) {
1445 wpas_p2p_free_send_action_work(wpa_s);
1448 * In theory, this should not be needed, but number of
1449 * places in the P2P code is still using non-zero wait
1450 * time for the last Action frame in the sequence and
1451 * some of these do not call send_action_done().
1453 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1455 eloop_register_timeout(
1456 0, awork->wait_time * 1000,
1457 wpas_p2p_send_action_work_timeout,
1464 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1466 const u8 *dst, const u8 *src,
1468 const u8 *data, size_t data_len,
1469 enum offchannel_send_action_result
1472 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1474 wpas_p2p_action_tx_clear(wpa_s);
1476 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1480 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1481 res = P2P_SEND_ACTION_SUCCESS;
1483 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1484 res = P2P_SEND_ACTION_NO_ACK;
1486 case OFFCHANNEL_SEND_ACTION_FAILED:
1487 res = P2P_SEND_ACTION_FAILED;
1491 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1493 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1494 wpa_s->pending_pd_before_join &&
1495 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1496 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1497 wpa_s->p2p_fallback_to_go_neg) {
1498 wpa_s->pending_pd_before_join = 0;
1499 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1500 "during p2p_connect-auto");
1501 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1502 P2P_EVENT_FALLBACK_TO_GO_NEG
1503 "reason=no-ACK-to-PD-Req");
1504 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1510 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1512 struct wpa_supplicant *wpa_s = work->wpa_s;
1513 struct send_action_work *awork = work->ctx;
1516 if (work->started) {
1517 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1519 wpa_s->p2p_send_action_work = NULL;
1520 offchannel_send_action_done(wpa_s);
1526 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1527 awork->bssid, awork->buf, awork->len,
1529 wpas_p2p_send_action_tx_status, 1) < 0) {
1531 radio_work_done(work);
1534 wpa_s->p2p_send_action_work = work;
1538 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1539 unsigned int freq, const u8 *dst,
1540 const u8 *src, const u8 *bssid, const u8 *buf,
1541 size_t len, unsigned int wait_time)
1543 struct send_action_work *awork;
1545 if (wpa_s->p2p_send_action_work) {
1546 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1550 awork = os_zalloc(sizeof(*awork) + len);
1555 os_memcpy(awork->dst, dst, ETH_ALEN);
1556 os_memcpy(awork->src, src, ETH_ALEN);
1557 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1559 awork->wait_time = wait_time;
1560 os_memcpy(awork->buf, buf, len);
1562 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1563 wpas_send_action_cb, awork) < 0) {
1572 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1573 const u8 *src, const u8 *bssid, const u8 *buf,
1574 size_t len, unsigned int wait_time)
1576 struct wpa_supplicant *wpa_s = ctx;
1577 int listen_freq = -1, send_freq = -1;
1579 if (wpa_s->p2p_listen_work)
1580 listen_freq = wpa_s->p2p_listen_work->freq;
1581 if (wpa_s->p2p_send_action_work)
1582 send_freq = wpa_s->p2p_send_action_work->freq;
1583 if (listen_freq != (int) freq && send_freq != (int) freq) {
1584 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1585 listen_freq, send_freq);
1586 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1590 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1591 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1593 wpas_p2p_send_action_tx_status, 1);
1597 static void wpas_send_action_done(void *ctx)
1599 struct wpa_supplicant *wpa_s = ctx;
1601 if (wpa_s->p2p_send_action_work) {
1602 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1604 os_free(wpa_s->p2p_send_action_work->ctx);
1605 radio_work_done(wpa_s->p2p_send_action_work);
1606 wpa_s->p2p_send_action_work = NULL;
1609 offchannel_send_action_done(wpa_s);
1613 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1614 struct p2p_go_neg_results *params)
1616 if (wpa_s->go_params == NULL) {
1617 wpa_s->go_params = os_malloc(sizeof(*params));
1618 if (wpa_s->go_params == NULL)
1621 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1626 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1627 struct p2p_go_neg_results *res)
1629 wpa_s->group_formation_reported = 0;
1630 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1631 " dev_addr " MACSTR " wps_method %d",
1632 MAC2STR(res->peer_interface_addr),
1633 MAC2STR(res->peer_device_addr), res->wps_method);
1634 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1635 res->ssid, res->ssid_len);
1636 wpa_supplicant_ap_deinit(wpa_s);
1637 wpas_copy_go_neg_results(wpa_s, res);
1638 if (res->wps_method == WPS_PBC) {
1639 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1640 #ifdef CONFIG_WPS_NFC
1641 } else if (res->wps_method == WPS_NFC) {
1642 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1643 res->peer_interface_addr,
1644 wpa_s->p2pdev->p2p_oob_dev_pw,
1645 wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
1646 wpa_s->p2pdev->p2p_oob_dev_pw_id ==
1647 DEV_PW_NFC_CONNECTION_HANDOVER ?
1648 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
1651 #endif /* CONFIG_WPS_NFC */
1653 u16 dev_pw_id = DEV_PW_DEFAULT;
1654 if (wpa_s->p2p_wps_method == WPS_P2PS)
1655 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1656 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1657 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1658 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1659 wpa_s->p2p_pin, 1, dev_pw_id);
1664 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1665 struct wpa_ssid *ssid)
1667 struct wpa_ssid *persistent;
1668 struct psk_list_entry *psk;
1669 struct hostapd_data *hapd;
1671 if (!wpa_s->ap_iface)
1674 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
1676 if (persistent == NULL)
1679 hapd = wpa_s->ap_iface->bss[0];
1681 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1683 struct hostapd_wpa_psk *hpsk;
1685 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1687 MAC2STR(psk->addr), psk->p2p);
1688 hpsk = os_zalloc(sizeof(*hpsk));
1691 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1693 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1695 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1696 hpsk->next = hapd->conf->ssid.wpa_psk;
1697 hapd->conf->ssid.wpa_psk = hpsk;
1702 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1706 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1707 wpa_s->p2p_group_common_freqs_num);
1709 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1710 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1711 i, wpa_s->p2p_group_common_freqs[i]);
1715 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1716 struct p2p_go_neg_results *params)
1718 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1720 wpa_s->p2p_group_common_freqs_num = 0;
1721 os_free(wpa_s->p2p_group_common_freqs);
1722 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1723 if (!wpa_s->p2p_group_common_freqs)
1726 for (i = 0; i < len; i++) {
1727 if (!wpa_s->go_params->freq_list[i])
1729 wpa_s->p2p_group_common_freqs[i] =
1730 wpa_s->go_params->freq_list[i];
1732 wpa_s->p2p_group_common_freqs_num = i;
1736 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1738 #ifndef CONFIG_NO_CONFIG_WRITE
1739 if (wpa_s->p2pdev->conf->update_config &&
1740 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
1741 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1742 #endif /* CONFIG_NO_CONFIG_WRITE */
1746 static void p2p_go_configured(void *ctx, void *data)
1748 struct wpa_supplicant *wpa_s = ctx;
1749 struct p2p_go_neg_results *params = data;
1750 struct wpa_ssid *ssid;
1752 wpa_s->ap_configured_cb = NULL;
1753 wpa_s->ap_configured_cb_ctx = NULL;
1754 wpa_s->ap_configured_cb_data = NULL;
1755 if (!wpa_s->go_params) {
1756 wpa_printf(MSG_ERROR,
1757 "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1761 p2p_go_save_group_common_freqs(wpa_s, params);
1762 p2p_go_dump_common_freqs(wpa_s);
1764 ssid = wpa_s->current_ssid;
1765 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1766 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1767 if (wpa_s->global->p2p_group_formation == wpa_s)
1768 wpa_s->global->p2p_group_formation = NULL;
1769 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1770 params->passphrase[0] == '\0' ?
1773 wpa_s->global->p2p_dev_addr,
1774 params->persistent_group, "");
1775 wpa_s->group_formation_reported = 1;
1777 if (wpa_s->p2pdev->p2ps_method_config_any) {
1778 if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
1779 wpa_dbg(wpa_s, MSG_DEBUG,
1780 "P2PS: Setting default PIN for ANY");
1781 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1782 "12345670", NULL, 0,
1785 wpa_dbg(wpa_s, MSG_DEBUG,
1786 "P2PS: Setting default PIN for " MACSTR,
1787 MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
1788 wpa_supplicant_ap_wps_pin(
1789 wpa_s, wpa_s->p2pdev->p2ps_join_addr,
1790 "12345670", NULL, 0, 0);
1792 wpa_s->p2pdev->p2ps_method_config_any = 0;
1795 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1796 if (params->persistent_group) {
1797 wpas_p2p_store_persistent_group(
1798 wpa_s->p2pdev, ssid,
1799 wpa_s->global->p2p_dev_addr);
1800 wpas_p2p_add_psk_list(wpa_s, ssid);
1803 wpas_notify_p2p_group_started(wpa_s, ssid,
1804 params->persistent_group, 0);
1805 wpas_p2p_cross_connect_setup(wpa_s);
1806 wpas_p2p_set_group_idle_timeout(wpa_s);
1808 if (wpa_s->p2p_first_connection_timeout) {
1809 wpa_dbg(wpa_s, MSG_DEBUG,
1810 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1811 wpa_s->p2p_first_connection_timeout);
1812 wpa_s->p2p_go_group_formation_completed = 0;
1813 wpa_s->global->p2p_group_formation = wpa_s;
1814 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1815 wpa_s->p2pdev, NULL);
1816 eloop_register_timeout(
1817 wpa_s->p2p_first_connection_timeout, 0,
1818 wpas_p2p_group_formation_timeout,
1819 wpa_s->p2pdev, NULL);
1825 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1826 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1827 params->peer_interface_addr)) {
1828 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1832 if (params->wps_method == WPS_PBC) {
1833 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1834 params->peer_device_addr);
1835 #ifdef CONFIG_WPS_NFC
1836 } else if (params->wps_method == WPS_NFC) {
1837 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
1838 DEV_PW_NFC_CONNECTION_HANDOVER &&
1839 !wpa_s->p2pdev->p2p_oob_dev_pw) {
1840 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1843 wpas_ap_wps_add_nfc_pw(
1844 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
1845 wpa_s->p2pdev->p2p_oob_dev_pw,
1846 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
1847 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
1848 #endif /* CONFIG_WPS_NFC */
1849 } else if (wpa_s->p2p_pin[0])
1850 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1851 wpa_s->p2p_pin, NULL, 0, 0);
1852 os_free(wpa_s->go_params);
1853 wpa_s->go_params = NULL;
1857 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1858 struct p2p_go_neg_results *params,
1859 int group_formation)
1861 struct wpa_ssid *ssid;
1863 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1864 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1865 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1870 ssid = wpa_config_add_network(wpa_s->conf);
1872 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1876 wpa_s->show_group_started = 0;
1877 wpa_s->p2p_go_group_formation_completed = 0;
1878 wpa_s->group_formation_reported = 0;
1879 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1881 wpa_config_set_network_defaults(ssid);
1882 ssid->temporary = 1;
1883 ssid->p2p_group = 1;
1884 ssid->p2p_persistent_group = params->persistent_group;
1885 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1887 ssid->frequency = params->freq;
1888 ssid->ht40 = params->ht40;
1889 ssid->vht = params->vht;
1890 ssid->max_oper_chwidth = params->max_oper_chwidth;
1891 ssid->vht_center_freq2 = params->vht_center_freq2;
1892 ssid->ssid = os_zalloc(params->ssid_len + 1);
1894 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1895 ssid->ssid_len = params->ssid_len;
1897 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1898 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1899 ssid->proto = WPA_PROTO_RSN;
1900 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1901 ssid->group_cipher = WPA_CIPHER_CCMP;
1902 if (params->freq > 56160) {
1904 * Enable GCMP instead of CCMP as pairwise_cipher and
1905 * group_cipher in 60 GHz.
1907 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1908 ssid->group_cipher = WPA_CIPHER_GCMP;
1909 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1912 if (os_strlen(params->passphrase) > 0) {
1913 ssid->passphrase = os_strdup(params->passphrase);
1914 if (ssid->passphrase == NULL) {
1915 wpa_msg_global(wpa_s, MSG_ERROR,
1916 "P2P: Failed to copy passphrase for GO");
1917 wpa_config_remove_network(wpa_s->conf, ssid->id);
1921 ssid->passphrase = NULL;
1922 ssid->psk_set = params->psk_set;
1924 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1925 else if (ssid->passphrase)
1926 wpa_config_update_psk(ssid);
1927 ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
1929 wpa_s->ap_configured_cb = p2p_go_configured;
1930 wpa_s->ap_configured_cb_ctx = wpa_s;
1931 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1932 wpa_s->scan_req = NORMAL_SCAN_REQ;
1933 wpa_s->connect_without_scan = ssid;
1934 wpa_s->reassociate = 1;
1935 wpa_s->disconnected = 0;
1936 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1938 wpa_supplicant_req_scan(wpa_s, 0, 0);
1942 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1943 const struct wpa_supplicant *src)
1945 struct wpa_config *d;
1946 const struct wpa_config *s;
1953 if (s->n && !d->n) \
1954 d->n = os_strdup(s->n); \
1965 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1966 os_memcpy(d->sec_device_type, s->sec_device_type,
1967 sizeof(d->sec_device_type));
1968 d->num_sec_device_types = s->num_sec_device_types;
1970 d->p2p_group_idle = s->p2p_group_idle;
1971 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1972 d->p2p_intra_bss = s->p2p_intra_bss;
1973 d->persistent_reconnect = s->persistent_reconnect;
1974 d->max_num_sta = s->max_num_sta;
1975 d->pbc_in_m1 = s->pbc_in_m1;
1976 d->ignore_old_scan_res = s->ignore_old_scan_res;
1977 d->beacon_int = s->beacon_int;
1978 d->dtim_period = s->dtim_period;
1979 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1980 d->disassoc_low_ack = s->disassoc_low_ack;
1981 d->disable_scan_offload = s->disable_scan_offload;
1982 d->passive_scan = s->passive_scan;
1984 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey &&
1985 !d->wps_nfc_pw_from_config) {
1986 wpabuf_free(d->wps_nfc_dh_privkey);
1987 wpabuf_free(d->wps_nfc_dh_pubkey);
1988 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1989 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1991 d->p2p_cli_probe = s->p2p_cli_probe;
1995 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1996 char *ifname, size_t len)
1998 char *ifname_ptr = wpa_s->ifname;
2000 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
2001 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
2002 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
2005 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
2006 if (os_strlen(ifname) >= IFNAMSIZ &&
2007 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
2010 /* Try to avoid going over the IFNAMSIZ length limit */
2011 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2012 if (os_snprintf_error(len, res) && len)
2013 ifname[len - 1] = '\0';
2018 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2019 enum wpa_driver_if_type type)
2021 char ifname[120], force_ifname[120];
2023 if (wpa_s->pending_interface_name[0]) {
2024 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2025 "- skip creation of a new one");
2026 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2027 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2028 "unknown?! ifname='%s'",
2029 wpa_s->pending_interface_name);
2035 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2036 force_ifname[0] = '\0';
2038 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2040 wpa_s->p2p_group_idx++;
2042 wpa_s->pending_interface_type = type;
2043 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2044 wpa_s->pending_interface_addr, NULL) < 0) {
2045 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2050 if (force_ifname[0]) {
2051 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2053 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2054 sizeof(wpa_s->pending_interface_name));
2056 os_strlcpy(wpa_s->pending_interface_name, ifname,
2057 sizeof(wpa_s->pending_interface_name));
2058 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2059 MACSTR, wpa_s->pending_interface_name,
2060 MAC2STR(wpa_s->pending_interface_addr));
2066 static void wpas_p2p_remove_pending_group_interface(
2067 struct wpa_supplicant *wpa_s)
2069 if (!wpa_s->pending_interface_name[0] ||
2070 is_zero_ether_addr(wpa_s->pending_interface_addr))
2071 return; /* No pending virtual interface */
2073 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2074 wpa_s->pending_interface_name);
2075 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2076 wpa_s->pending_interface_name);
2077 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2078 wpa_s->pending_interface_name[0] = '\0';
2079 wpa_s->global->pending_group_iface_for_p2ps = 0;
2083 static struct wpa_supplicant *
2084 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2086 struct wpa_interface iface;
2087 struct wpa_supplicant *group_wpa_s;
2089 if (!wpa_s->pending_interface_name[0]) {
2090 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2091 if (!wpas_p2p_create_iface(wpa_s))
2094 * Something has forced us to remove the pending interface; try
2095 * to create a new one and hope for the best that we will get
2096 * the same local address.
2098 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2099 WPA_IF_P2P_CLIENT) < 0)
2103 os_memset(&iface, 0, sizeof(iface));
2104 iface.ifname = wpa_s->pending_interface_name;
2105 iface.driver = wpa_s->driver->name;
2106 if (wpa_s->conf->ctrl_interface == NULL &&
2107 wpa_s->parent != wpa_s &&
2109 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2110 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2112 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2113 iface.driver_param = wpa_s->conf->driver_param;
2114 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2115 if (group_wpa_s == NULL) {
2116 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2117 "wpa_supplicant interface");
2120 wpa_s->pending_interface_name[0] = '\0';
2121 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2122 P2P_GROUP_INTERFACE_CLIENT;
2123 wpa_s->global->p2p_group_formation = group_wpa_s;
2124 wpa_s->global->pending_group_iface_for_p2ps = 0;
2126 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2132 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2135 struct wpa_supplicant *wpa_s = eloop_ctx;
2136 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2137 wpas_p2p_group_formation_failed(wpa_s, 0);
2141 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2142 int already_deleted)
2144 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2145 wpa_s->p2pdev, NULL);
2146 if (wpa_s->global->p2p)
2147 p2p_group_formation_failed(wpa_s->global->p2p);
2148 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2152 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2154 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2155 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2156 wpa_s->p2pdev, NULL);
2157 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2158 wpa_s->p2pdev, NULL);
2159 wpa_s->global->p2p_fail_on_wps_complete = 0;
2163 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2165 if (wpa_s->global->p2p_group_formation != wpa_s)
2167 /* Speed up group formation timeout since this cannot succeed */
2168 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2169 wpa_s->p2pdev, NULL);
2170 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2171 wpa_s->p2pdev, NULL);
2175 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2177 struct wpa_supplicant *wpa_s = ctx;
2178 struct wpa_supplicant *group_wpa_s;
2180 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2181 wpa_drv_cancel_remain_on_channel(wpa_s);
2182 wpa_s->off_channel_freq = 0;
2183 wpa_s->roc_waiting_drv_freq = 0;
2187 wpa_msg_global(wpa_s, MSG_INFO,
2188 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2190 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2191 wpas_p2p_remove_pending_group_interface(wpa_s);
2195 if (!res->role_go) {
2196 /* Inform driver of the operating channel of GO. */
2197 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2200 if (wpa_s->p2p_go_ht40)
2202 if (wpa_s->p2p_go_vht)
2204 res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2205 res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2207 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2208 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2210 res->role_go ? "GO" : "client", res->freq, res->ht40,
2211 MAC2STR(res->peer_device_addr),
2212 MAC2STR(res->peer_interface_addr),
2213 p2p_wps_method_text(res->wps_method));
2214 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2216 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2217 struct wpa_ssid *ssid;
2218 ssid = wpa_config_get_network(wpa_s->conf,
2219 wpa_s->p2p_persistent_id);
2220 if (ssid && ssid->disabled == 2 &&
2221 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2222 size_t len = os_strlen(ssid->passphrase);
2223 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2224 "on requested persistent group");
2225 os_memcpy(res->passphrase, ssid->passphrase, len);
2226 res->passphrase[len] = '\0';
2230 if (wpa_s->create_p2p_iface) {
2232 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2233 if (group_wpa_s == NULL) {
2234 wpas_p2p_remove_pending_group_interface(wpa_s);
2235 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2237 wpas_p2p_group_formation_failed(wpa_s, 1);
2240 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2241 wpa_s->pending_interface_name[0] = '\0';
2243 group_wpa_s = wpa_s->parent;
2244 wpa_s->global->p2p_group_formation = group_wpa_s;
2245 if (group_wpa_s != wpa_s)
2246 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2249 group_wpa_s->p2p_in_provisioning = 1;
2250 group_wpa_s->p2pdev = wpa_s;
2251 if (group_wpa_s != wpa_s) {
2252 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2253 sizeof(group_wpa_s->p2p_pin));
2254 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2257 wpas_start_wps_go(group_wpa_s, res, 1);
2259 os_get_reltime(&group_wpa_s->scan_min_time);
2260 wpas_start_wps_enrollee(group_wpa_s, res);
2263 wpa_s->p2p_long_listen = 0;
2264 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2266 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2267 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2268 (res->peer_config_timeout % 100) * 10000,
2269 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2273 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2276 struct wpa_supplicant *wpa_s = ctx;
2277 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2278 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2279 dev_passwd_id, go_intent);
2281 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2285 static void wpas_dev_found(void *ctx, const u8 *addr,
2286 const struct p2p_peer_info *info,
2289 #ifndef CONFIG_NO_STDOUT_DEBUG
2290 struct wpa_supplicant *wpa_s = ctx;
2291 char devtype[WPS_DEV_TYPE_BUFSIZE];
2292 char *wfd_dev_info_hex = NULL;
2294 #ifdef CONFIG_WIFI_DISPLAY
2295 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2296 WFD_SUBELEM_DEVICE_INFO);
2297 #endif /* CONFIG_WIFI_DISPLAY */
2299 if (info->p2ps_instance) {
2301 const u8 *buf = wpabuf_head(info->p2ps_instance);
2302 size_t len = wpabuf_len(info->p2ps_instance);
2309 if (len < 4 + 2 + 1)
2311 id = WPA_GET_LE32(buf);
2313 methods = WPA_GET_BE16(buf);
2316 if (str_len > len - 4 - 2 - 1)
2318 os_memcpy(str, buf, str_len);
2319 str[str_len] = '\0';
2321 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2323 wpa_msg_global(wpa_s, MSG_INFO,
2324 P2P_EVENT_DEVICE_FOUND MACSTR
2325 " p2p_dev_addr=" MACSTR
2326 " pri_dev_type=%s name='%s'"
2327 " config_methods=0x%x"
2330 " adv_id=%x asp_svc=%s%s",
2332 MAC2STR(info->p2p_device_addr),
2333 wps_dev_type_bin2str(
2335 devtype, sizeof(devtype)),
2336 info->device_name, methods,
2337 info->dev_capab, info->group_capab,
2339 info->vendor_elems ?
2340 " vendor_elems=1" : "");
2345 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2346 " p2p_dev_addr=" MACSTR
2347 " pri_dev_type=%s name='%s' config_methods=0x%x "
2348 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2349 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2350 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2352 info->device_name, info->config_methods,
2353 info->dev_capab, info->group_capab,
2354 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2355 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2356 info->vendor_elems ? " vendor_elems=1" : "",
2360 os_free(wfd_dev_info_hex);
2361 #endif /* CONFIG_NO_STDOUT_DEBUG */
2363 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2367 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2369 struct wpa_supplicant *wpa_s = ctx;
2371 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2372 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2374 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2378 static void wpas_find_stopped(void *ctx)
2380 struct wpa_supplicant *wpa_s = ctx;
2382 if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0)
2383 wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed");
2385 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2386 wpas_notify_p2p_find_stopped(wpa_s);
2390 struct wpas_p2p_listen_work {
2392 unsigned int duration;
2393 struct wpabuf *probe_resp_ie;
2397 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2401 wpabuf_free(lwork->probe_resp_ie);
2406 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2408 struct wpas_p2p_listen_work *lwork;
2410 if (!wpa_s->p2p_listen_work)
2413 lwork = wpa_s->p2p_listen_work->ctx;
2414 wpas_p2p_listen_work_free(lwork);
2415 radio_work_done(wpa_s->p2p_listen_work);
2416 wpa_s->p2p_listen_work = NULL;
2420 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2422 struct wpa_supplicant *wpa_s = work->wpa_s;
2423 struct wpas_p2p_listen_work *lwork = work->ctx;
2424 unsigned int duration;
2427 if (work->started) {
2428 wpa_s->p2p_listen_work = NULL;
2429 wpas_stop_listen(wpa_s);
2431 wpas_p2p_listen_work_free(lwork);
2435 wpa_s->p2p_listen_work = work;
2437 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2439 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2440 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2441 "report received Probe Request frames");
2442 wpas_p2p_listen_work_done(wpa_s);
2446 wpa_s->pending_listen_freq = lwork->freq;
2447 wpa_s->pending_listen_duration = lwork->duration;
2449 duration = lwork->duration;
2450 #ifdef CONFIG_TESTING_OPTIONS
2451 if (wpa_s->extra_roc_dur) {
2452 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2453 duration, duration + wpa_s->extra_roc_dur);
2454 duration += wpa_s->extra_roc_dur;
2456 #endif /* CONFIG_TESTING_OPTIONS */
2458 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2459 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2460 "to remain on channel (%u MHz) for Listen "
2461 "state", lwork->freq);
2462 wpas_p2p_listen_work_done(wpa_s);
2463 wpa_s->pending_listen_freq = 0;
2466 wpa_s->off_channel_freq = 0;
2467 wpa_s->roc_waiting_drv_freq = lwork->freq;
2471 static int wpas_start_listen(void *ctx, unsigned int freq,
2472 unsigned int duration,
2473 const struct wpabuf *probe_resp_ie)
2475 struct wpa_supplicant *wpa_s = ctx;
2476 struct wpas_p2p_listen_work *lwork;
2478 if (wpa_s->p2p_listen_work) {
2479 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2483 lwork = os_zalloc(sizeof(*lwork));
2487 lwork->duration = duration;
2488 if (probe_resp_ie) {
2489 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2490 if (lwork->probe_resp_ie == NULL) {
2491 wpas_p2p_listen_work_free(lwork);
2496 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2498 wpas_p2p_listen_work_free(lwork);
2506 static void wpas_stop_listen(void *ctx)
2508 struct wpa_supplicant *wpa_s = ctx;
2509 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2510 wpa_drv_cancel_remain_on_channel(wpa_s);
2511 wpa_s->off_channel_freq = 0;
2512 wpa_s->roc_waiting_drv_freq = 0;
2514 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2517 * Don't cancel Probe Request RX reporting for a connected P2P Client
2518 * handling Probe Request frames.
2520 if (!wpa_s->p2p_cli_probe)
2521 wpa_drv_probe_req_report(wpa_s, 0);
2523 wpas_p2p_listen_work_done(wpa_s);
2527 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2530 struct wpa_supplicant *wpa_s = ctx;
2531 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2536 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2537 const u8 *peer, const char *params,
2538 unsigned int generated_pin)
2540 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2541 " %08d%s", MAC2STR(peer), generated_pin, params);
2545 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2546 const u8 *peer, const char *params)
2548 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2549 "%s", MAC2STR(peer), params);
2553 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2554 const u8 *dev_addr, const u8 *pri_dev_type,
2555 const char *dev_name, u16 supp_config_methods,
2556 u8 dev_capab, u8 group_capab, const u8 *group_id,
2557 size_t group_id_len)
2559 struct wpa_supplicant *wpa_s = ctx;
2560 char devtype[WPS_DEV_TYPE_BUFSIZE];
2562 u8 empty_dev_type[8];
2563 unsigned int generated_pin = 0;
2564 struct wpa_supplicant *group = NULL;
2568 for (group = wpa_s->global->ifaces; group; group = group->next)
2570 struct wpa_ssid *s = group->current_ssid;
2572 s->mode == WPAS_MODE_P2P_GO &&
2573 group_id_len - ETH_ALEN == s->ssid_len &&
2574 os_memcmp(group_id + ETH_ALEN, s->ssid,
2580 if (pri_dev_type == NULL) {
2581 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2582 pri_dev_type = empty_dev_type;
2584 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2585 " pri_dev_type=%s name='%s' config_methods=0x%x "
2586 "dev_capab=0x%x group_capab=0x%x%s%s",
2588 wps_dev_type_bin2str(pri_dev_type, devtype,
2590 dev_name, supp_config_methods, dev_capab, group_capab,
2591 group ? " group=" : "",
2592 group ? group->ifname : "");
2593 if (os_snprintf_error(sizeof(params), res))
2594 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2595 params[sizeof(params) - 1] = '\0';
2597 if (config_methods & WPS_CONFIG_DISPLAY) {
2598 if (wps_generate_pin(&generated_pin) < 0) {
2599 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2600 wpas_notify_p2p_provision_discovery(
2601 wpa_s, peer, 0 /* response */,
2602 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2605 wpas_prov_disc_local_display(wpa_s, peer, params,
2607 } else if (config_methods & WPS_CONFIG_KEYPAD)
2608 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2609 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2610 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2611 MACSTR "%s", MAC2STR(peer), params);
2613 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2614 P2P_PROV_DISC_SUCCESS,
2615 config_methods, generated_pin);
2619 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2621 struct wpa_supplicant *wpa_s = ctx;
2622 unsigned int generated_pin = 0;
2625 if (wpa_s->pending_pd_before_join &&
2626 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2627 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2628 wpa_s->pending_pd_before_join = 0;
2629 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2630 "join-existing-group operation");
2631 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2635 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2636 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2639 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2640 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2641 if (os_snprintf_error(sizeof(params), res))
2642 params[sizeof(params) - 1] = '\0';
2646 if (config_methods & WPS_CONFIG_DISPLAY)
2647 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2648 else if (config_methods & WPS_CONFIG_KEYPAD) {
2649 if (wps_generate_pin(&generated_pin) < 0) {
2650 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2651 wpas_notify_p2p_provision_discovery(
2652 wpa_s, peer, 0 /* response */,
2653 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2656 wpas_prov_disc_local_display(wpa_s, peer, params,
2658 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2659 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2660 MACSTR "%s", MAC2STR(peer), params);
2662 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2663 P2P_PROV_DISC_SUCCESS,
2664 config_methods, generated_pin);
2668 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2669 enum p2p_prov_disc_status status,
2670 u32 adv_id, const u8 *adv_mac,
2671 const char *deferred_session_resp)
2673 struct wpa_supplicant *wpa_s = ctx;
2675 if (wpa_s->p2p_fallback_to_go_neg) {
2676 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2677 "failed - fall back to GO Negotiation");
2678 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
2679 P2P_EVENT_FALLBACK_TO_GO_NEG
2680 "reason=PD-failed");
2681 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2685 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2686 wpa_s->pending_pd_before_join = 0;
2687 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2688 "join-existing-group operation (no ACK for PD "
2690 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2694 if (adv_id && adv_mac && deferred_session_resp) {
2695 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2696 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2697 " deferred_session_resp='%s'",
2698 MAC2STR(peer), status, adv_id,
2699 deferred_session_resp);
2700 } else if (adv_id && adv_mac) {
2701 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2702 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2703 MAC2STR(peer), status, adv_id);
2705 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2706 " p2p_dev_addr=" MACSTR " status=%d",
2707 MAC2STR(peer), status);
2710 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2715 static int freq_included(struct wpa_supplicant *wpa_s,
2716 const struct p2p_channels *channels,
2719 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2720 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2726 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2728 unsigned int num = P2P_MAX_CHANNELS;
2732 p2p_go_dump_common_freqs(wpa_s);
2733 common_freqs = os_calloc(num, sizeof(int));
2737 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2739 wpa_dbg(wpa_s, MSG_DEBUG,
2740 "P2P: Failed to get group common freqs");
2741 os_free(common_freqs);
2745 os_free(wpa_s->p2p_group_common_freqs);
2746 wpa_s->p2p_group_common_freqs = common_freqs;
2747 wpa_s->p2p_group_common_freqs_num = num;
2748 p2p_go_dump_common_freqs(wpa_s);
2753 * Check if the given frequency is one of the possible operating frequencies
2754 * set after the completion of the GO Negotiation.
2756 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2760 p2p_go_dump_common_freqs(wpa_s);
2762 /* assume no restrictions */
2763 if (!wpa_s->p2p_group_common_freqs_num)
2766 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2767 if (wpa_s->p2p_group_common_freqs[i] == freq)
2774 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2775 struct sta_info *sta, void *ctx)
2777 int *ecsa_support = ctx;
2779 *ecsa_support &= sta->ecsa_supported;
2785 /* Check if all the peers support eCSA */
2786 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2788 int ecsa_support = 1;
2790 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2793 return ecsa_support;
2798 * Pick the best frequency to use from all the currently used frequencies.
2800 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2801 struct wpa_used_freq_data *freqs,
2806 /* find a candidate freq that is supported by P2P */
2807 for (c = 0; c < num; c++)
2808 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2814 /* once we have a candidate, try to find a 'better' one */
2815 for (i = c + 1; i < num; i++) {
2816 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2820 * 1. Infrastructure station interfaces have higher preference.
2821 * 2. P2P Clients have higher preference.
2824 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2829 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2832 return freqs[c].freq;
2836 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2837 const u8 *go_dev_addr, const u8 *ssid,
2838 size_t ssid_len, int *go, u8 *group_bssid,
2839 int *force_freq, int persistent_group,
2840 const struct p2p_channels *channels,
2843 struct wpa_supplicant *wpa_s = ctx;
2845 struct wpa_used_freq_data *freqs;
2846 struct wpa_supplicant *grp;
2849 if (!persistent_group) {
2850 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2851 " to join an active group (SSID: %s)",
2852 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2853 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2854 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2856 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2857 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2858 "authorized invitation");
2862 #ifdef CONFIG_WPS_NFC
2863 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2864 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2865 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2866 wpa_s->p2p_wps_method = WPS_NFC;
2867 wpa_s->pending_join_wps_method = WPS_NFC;
2868 os_memcpy(wpa_s->pending_join_dev_addr,
2869 go_dev_addr, ETH_ALEN);
2870 os_memcpy(wpa_s->pending_join_iface_addr,
2874 #endif /* CONFIG_WPS_NFC */
2877 * Do not accept the invitation automatically; notify user and
2880 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2883 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2885 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2886 "running persistent group");
2888 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2892 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2893 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2894 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2895 "invitation to re-invoke a persistent group");
2896 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2897 } else if (!wpa_s->conf->persistent_reconnect)
2898 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2900 for (s = wpa_s->conf->ssid; s; s = s->next) {
2901 if (s->disabled == 2 &&
2902 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2903 s->ssid_len == ssid_len &&
2904 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2909 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2910 " requested reinvocation of an unknown group",
2912 return P2P_SC_FAIL_UNKNOWN_GROUP;
2915 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2917 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2918 wpa_printf(MSG_DEBUG, "P2P: The only available "
2919 "interface is already in use - reject "
2921 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2923 if (wpa_s->p2p_mgmt)
2924 os_memcpy(group_bssid, wpa_s->parent->own_addr,
2927 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2928 } else if (s->mode == WPAS_MODE_P2P_GO) {
2930 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2932 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2933 "interface address for the group");
2934 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2936 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2941 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2944 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2945 sizeof(struct wpa_used_freq_data));
2947 int num_channels = wpa_s->num_multichan_concurrent;
2948 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2949 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2953 /* Get one of the frequencies currently in use */
2954 if (best_freq > 0) {
2955 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2956 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2958 if (wpa_s->num_multichan_concurrent < 2 ||
2959 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2960 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2961 *force_freq = best_freq;
2965 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2966 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2968 /* We are the client */
2969 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2970 "running a GO but we are capable of MCC, "
2971 "figure out the best channel to use");
2973 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2974 /* We are the GO, and *force_freq is not in the
2976 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2977 "in intersection but we are capable of MCC, "
2978 "figure out the best channel to use",
2984 return P2P_SC_SUCCESS;
2988 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2989 const u8 *ssid, size_t ssid_len,
2990 const u8 *go_dev_addr, u8 status,
2993 struct wpa_supplicant *wpa_s = ctx;
2996 for (s = wpa_s->conf->ssid; s; s = s->next) {
2997 if (s->disabled == 2 &&
2998 s->ssid_len == ssid_len &&
2999 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3003 if (status == P2P_SC_SUCCESS) {
3004 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3005 " was accepted; op_freq=%d MHz, SSID=%s",
3006 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3008 int go = s->mode == WPAS_MODE_P2P_GO;
3010 wpa_msg_global(wpa_s, MSG_INFO,
3011 P2P_EVENT_INVITATION_ACCEPTED
3013 " persistent=%d freq=%d",
3014 MAC2STR(sa), s->id, op_freq);
3016 wpa_msg_global(wpa_s, MSG_INFO,
3017 P2P_EVENT_INVITATION_ACCEPTED
3020 MAC2STR(sa), s->id);
3022 wpas_p2p_group_add_persistent(
3023 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
3024 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
3027 wpa_s->user_initiated_pd = 0;
3028 wpa_msg_global(wpa_s, MSG_INFO,
3029 P2P_EVENT_INVITATION_ACCEPTED
3030 "sa=" MACSTR " go_dev_addr=" MACSTR
3031 " bssid=" MACSTR " unknown-network",
3032 MAC2STR(sa), MAC2STR(go_dev_addr),
3034 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3035 wpa_s->p2p_wps_method, 0, op_freq,
3041 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3042 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3043 " was rejected (status %u)", MAC2STR(sa), status);
3049 wpa_msg_global(wpa_s, MSG_INFO,
3050 P2P_EVENT_INVITATION_RECEIVED
3051 "sa=" MACSTR " go_dev_addr=" MACSTR
3052 " bssid=" MACSTR " unknown-network",
3053 MAC2STR(sa), MAC2STR(go_dev_addr),
3056 wpa_msg_global(wpa_s, MSG_INFO,
3057 P2P_EVENT_INVITATION_RECEIVED
3058 "sa=" MACSTR " go_dev_addr=" MACSTR
3060 MAC2STR(sa), MAC2STR(go_dev_addr));
3062 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3067 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3068 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3069 "sa=" MACSTR " persistent=%d freq=%d",
3070 MAC2STR(sa), s->id, op_freq);
3072 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3073 "sa=" MACSTR " persistent=%d",
3074 MAC2STR(sa), s->id);
3076 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3081 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3082 struct wpa_ssid *ssid,
3083 const u8 *peer, int inv)
3086 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3091 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3092 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3096 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3097 if (ssid->mode != WPAS_MODE_P2P_GO &&
3098 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3099 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3100 "due to invitation result", ssid->id);
3101 wpas_notify_network_removed(wpa_s, ssid);
3102 wpa_config_remove_network(wpa_s->conf, ssid->id);
3105 return; /* Peer not found in client list */
3108 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3109 "group %d client list%s",
3110 MAC2STR(peer), ssid->id,
3111 inv ? " due to invitation result" : "");
3112 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3113 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3114 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3115 ssid->num_p2p_clients--;
3116 if (p2p_wpa_s->conf->update_config &&
3117 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3118 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3122 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3125 struct wpa_ssid *ssid;
3127 wpa_s = wpa_s->global->p2p_invite_group;
3129 return; /* No known invitation group */
3130 ssid = wpa_s->current_ssid;
3131 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3132 !ssid->p2p_persistent_group)
3133 return; /* Not operating as a GO in persistent group */
3134 ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
3135 ssid->ssid, ssid->ssid_len);
3136 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3140 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3141 const struct p2p_channels *channels,
3142 const u8 *peer, int neg_freq,
3145 struct wpa_supplicant *wpa_s = ctx;
3146 struct wpa_ssid *ssid;
3150 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3151 "status=%d " MACSTR,
3152 status, MAC2STR(bssid));
3154 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3155 "status=%d ", status);
3157 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3159 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3160 status, MAC2STR(peer));
3161 if (wpa_s->pending_invite_ssid_id == -1) {
3162 struct wpa_supplicant *group_if =
3163 wpa_s->global->p2p_invite_group;
3165 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3166 wpas_remove_persistent_client(wpa_s, peer);
3169 * Invitation to an active group. If this is successful and we
3170 * are the GO, set the client wait to postpone some concurrent
3171 * operations and to allow provisioning and connection to happen
3174 if (status == P2P_SC_SUCCESS &&
3175 group_if && group_if->current_ssid &&
3176 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3177 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3178 #ifdef CONFIG_TESTING_OPTIONS
3179 if (group_if->p2p_go_csa_on_inv) {
3180 wpa_printf(MSG_DEBUG,
3181 "Testing: force P2P GO CSA after invitation");
3182 eloop_cancel_timeout(
3183 wpas_p2p_reconsider_moving_go,
3185 eloop_register_timeout(
3187 wpas_p2p_reconsider_moving_go,
3190 #endif /* CONFIG_TESTING_OPTIONS */
3195 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3196 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3197 "invitation exchange to indicate readiness for "
3201 if (status != P2P_SC_SUCCESS) {
3202 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3203 ssid = wpa_config_get_network(
3204 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3205 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3207 wpas_p2p_remove_pending_group_interface(wpa_s);
3211 ssid = wpa_config_get_network(wpa_s->conf,
3212 wpa_s->pending_invite_ssid_id);
3214 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3215 "data matching with invitation");
3220 * The peer could have missed our ctrl::ack frame for Invitation
3221 * Response and continue retransmitting the frame. To reduce the
3222 * likelihood of the peer not getting successful TX status for the
3223 * Invitation Response frame, wait a short time here before starting
3224 * the persistent group so that we will remain on the current channel to
3225 * acknowledge any possible retransmission from the peer.
3227 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3228 "starting persistent group");
3231 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3232 freq_included(wpa_s, channels, neg_freq))
3234 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3235 freq_included(wpa_s, channels, peer_oper_freq))
3236 freq = peer_oper_freq;
3240 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3241 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3242 wpas_p2p_group_add_persistent(wpa_s, ssid,
3243 ssid->mode == WPAS_MODE_P2P_GO,
3244 wpa_s->p2p_persistent_go_freq,
3246 wpa_s->p2p_go_vht_center_freq2,
3247 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3248 wpa_s->p2p_go_max_oper_chwidth,
3250 ssid->mode == WPAS_MODE_P2P_GO ?
3251 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3256 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3259 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3261 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3265 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3267 reg->channel[reg->channels] = chan;
3272 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3273 struct p2p_channels *chan,
3274 struct p2p_channels *cli_chan)
3278 wpa_s->global->p2p_24ghz_social_channels = 1;
3280 os_memset(cli_chan, 0, sizeof(*cli_chan));
3282 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3285 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3286 chan->reg_class[cla].reg_class = 81;
3287 chan->reg_class[cla].channels = 0;
3288 for (i = 0; i < 11; i++) {
3289 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3290 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3292 if (chan->reg_class[cla].channels)
3295 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3298 /* Operating class 115 - 5 GHz, channels 36-48 */
3299 chan->reg_class[cla].reg_class = 115;
3300 chan->reg_class[cla].channels = 0;
3301 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3302 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3303 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3304 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3305 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3306 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3307 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3308 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3309 if (chan->reg_class[cla].channels)
3312 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3315 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3316 chan->reg_class[cla].reg_class = 124;
3317 chan->reg_class[cla].channels = 0;
3318 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3319 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3320 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3321 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3322 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3323 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3324 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3325 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3326 if (chan->reg_class[cla].channels)
3329 chan->reg_classes = cla;
3335 NOT_ALLOWED, NO_IR, ALLOWED
3338 static int has_channel(struct wpa_global *global,
3339 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3344 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3346 if (wpas_p2p_disallowed_freq(global, freq))
3349 for (i = 0; i < mode->num_channels; i++) {
3350 if (mode->channels[i].chan == chan) {
3352 *flags = mode->channels[i].flag;
3353 if (mode->channels[i].flag &
3354 (HOSTAPD_CHAN_DISABLED |
3355 HOSTAPD_CHAN_RADAR))
3357 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3367 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3368 struct hostapd_hw_modes *mode,
3371 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3374 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3377 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3379 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3380 * so the center channel is 6 channels away from the start/end.
3382 if (channel >= center_channels[i] - 6 &&
3383 channel <= center_channels[i] + 6)
3384 return center_channels[i];
3390 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3391 struct hostapd_hw_modes *mode,
3396 enum chan_allowed res, ret = ALLOWED;
3398 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3401 if (center_chan >= 58 && center_chan <= 138)
3402 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3404 /* check all the channels are available */
3405 for (i = 0; i < 4; i++) {
3406 int adj_chan = center_chan - 6 + i * 4;
3408 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3409 if (res == NOT_ALLOWED)
3414 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3416 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3418 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3420 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3428 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3429 struct hostapd_hw_modes *mode,
3432 u8 center_channels[] = { 50, 114 };
3435 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3438 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3440 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3441 * so the center channel is 14 channels away from the start/end.
3443 if (channel >= center_channels[i] - 14 &&
3444 channel <= center_channels[i] + 14)
3445 return center_channels[i];
3451 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3452 struct hostapd_hw_modes *mode,
3457 enum chan_allowed res, ret = ALLOWED;
3459 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3462 /* VHT 160 MHz uses DFS channels in most countries. */
3464 /* Check all the channels are available */
3465 for (i = 0; i < 8; i++) {
3466 int adj_chan = center_chan - 14 + i * 4;
3468 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3469 if (res == NOT_ALLOWED)
3475 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3477 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3479 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3481 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3483 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3485 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3487 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3489 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3497 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3498 struct hostapd_hw_modes *mode,
3502 enum chan_allowed res, res2;
3504 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3505 if (bw == BW40MINUS) {
3506 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3508 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3509 } else if (bw == BW40PLUS) {
3510 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3512 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3513 } else if (bw == BW80) {
3514 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3515 } else if (bw == BW160) {
3516 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3519 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3521 if (res == NO_IR || res2 == NO_IR)
3527 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3528 struct p2p_channels *chan,
3529 struct p2p_channels *cli_chan)
3531 struct hostapd_hw_modes *mode;
3532 int cla, op, cli_cla;
3534 if (wpa_s->hw.modes == NULL) {
3535 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3536 "of all supported channels; assume dualband "
3538 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3543 for (op = 0; global_op_class[op].op_class; op++) {
3544 const struct oper_class_map *o = &global_op_class[op];
3546 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3548 if (o->p2p == NO_P2P_SUPP)
3551 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3554 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3555 wpa_s->global->p2p_24ghz_social_channels = 1;
3556 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3557 enum chan_allowed res;
3558 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3559 if (res == ALLOWED) {
3561 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3563 reg = &chan->reg_class[cla];
3565 reg->reg_class = o->op_class;
3567 reg->channel[reg->channels] = ch;
3569 } else if (res == NO_IR &&
3570 wpa_s->conf->p2p_add_cli_chan) {
3571 if (cli_reg == NULL) {
3572 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3574 cli_reg = &cli_chan->reg_class[cli_cla];
3576 cli_reg->reg_class = o->op_class;
3578 cli_reg->channel[cli_reg->channels] = ch;
3579 cli_reg->channels++;
3583 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3584 reg->channel, reg->channels);
3587 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3588 cli_reg->channel, cli_reg->channels);
3592 chan->reg_classes = cla;
3593 cli_chan->reg_classes = cli_cla;
3599 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3600 struct hostapd_hw_modes *mode, u8 channel)
3603 enum chan_allowed ret;
3605 for (op = 0; global_op_class[op].op_class; op++) {
3606 const struct oper_class_map *o = &global_op_class[op];
3609 if (o->p2p == NO_P2P_SUPP)
3612 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3613 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3614 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3617 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3619 return (o->bw == BW40MINUS) ? -1 : 1;
3626 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3627 struct hostapd_hw_modes *mode, u8 channel)
3629 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3632 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3636 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3637 struct hostapd_hw_modes *mode, u8 channel)
3639 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3641 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3645 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3648 struct wpa_supplicant *wpa_s = ctx;
3650 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3651 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3657 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3661 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3662 const u8 *ssid, size_t ssid_len)
3664 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3665 struct wpa_ssid *s = wpa_s->current_ssid;
3668 if (s->mode != WPAS_MODE_P2P_GO &&
3669 s->mode != WPAS_MODE_AP &&
3670 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3672 if (s->ssid_len != ssid_len ||
3673 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3683 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3684 const u8 *peer_dev_addr)
3686 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3687 struct wpa_ssid *ssid = wpa_s->current_ssid;
3688 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3690 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3698 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3700 struct wpa_supplicant *wpa_s = ctx;
3702 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3706 static int wpas_is_concurrent_session_active(void *ctx)
3708 struct wpa_supplicant *wpa_s = ctx;
3709 struct wpa_supplicant *ifs;
3711 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3714 if (ifs->wpa_state > WPA_ASSOCIATED)
3721 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3723 struct wpa_supplicant *wpa_s = ctx;
3724 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3728 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3729 const char *conf_p2p_dev)
3731 struct wpa_interface iface;
3732 struct wpa_supplicant *p2pdev_wpa_s;
3734 char force_name[100];
3737 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3739 if (os_snprintf_error(sizeof(ifname), ret))
3741 force_name[0] = '\0';
3742 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3743 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3744 force_name, wpa_s->pending_interface_addr, NULL);
3746 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3749 os_strlcpy(wpa_s->pending_interface_name, ifname,
3750 sizeof(wpa_s->pending_interface_name));
3752 os_memset(&iface, 0, sizeof(iface));
3754 iface.ifname = wpa_s->pending_interface_name;
3755 iface.driver = wpa_s->driver->name;
3756 iface.driver_param = wpa_s->conf->driver_param;
3759 * If a P2P Device configuration file was given, use it as the interface
3760 * configuration file (instead of using parent's configuration file.
3763 iface.confname = conf_p2p_dev;
3764 iface.ctrl_interface = NULL;
3766 iface.confname = wpa_s->confname;
3767 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3770 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3771 if (!p2pdev_wpa_s) {
3772 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3776 p2pdev_wpa_s->p2pdev = p2pdev_wpa_s;
3777 wpa_s->pending_interface_name[0] = '\0';
3782 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3783 const u8 *noa, size_t noa_len)
3785 struct wpa_supplicant *wpa_s, *intf = ctx;
3788 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3789 if (wpa_s->waiting_presence_resp)
3793 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3796 wpa_s->waiting_presence_resp = 0;
3798 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3799 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3800 " status=%u noa=%s", MAC2STR(src), status, hex);
3804 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3805 size_t ssid_len, u8 *go_dev_addr,
3806 u8 *ret_ssid, size_t *ret_ssid_len,
3807 u8 *intended_iface_addr)
3809 struct wpa_supplicant *wpa_s = ctx;
3812 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3814 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3815 *ret_ssid_len = s->ssid_len;
3816 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3818 if (s->mode != WPAS_MODE_P2P_GO) {
3819 os_memset(intended_iface_addr, 0, ETH_ALEN);
3820 } else if (wpas_p2p_create_iface(wpa_s)) {
3821 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3824 os_memcpy(intended_iface_addr,
3825 wpa_s->pending_interface_addr, ETH_ALEN);
3827 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3837 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3838 u8 *ssid, size_t *ssid_len, int *group_iface,
3841 struct wpa_supplicant *wpa_s = ctx;
3842 struct wpa_supplicant *go;
3846 * group_iface will be set to 1 only if a dedicated interface for P2P
3847 * role is required. First, we try to reuse an active GO. However,
3848 * if it is not present, we will try to reactivate an existing
3849 * persistent group and set group_iface to 1, so the caller will know
3850 * that the pending interface should be used.
3857 go = wpas_p2p_get_go_group(wpa_s);
3859 s = wpas_p2p_get_persistent_go(wpa_s);
3860 *group_iface = wpas_p2p_create_iface(wpa_s);
3862 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3866 s = go->current_ssid;
3867 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3869 *freq = go->assoc_freq;
3872 os_memcpy(ssid, s->ssid, s->ssid_len);
3873 *ssid_len = s->ssid_len;
3879 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3880 const u8 *ssid, size_t ssid_len)
3882 struct wpa_supplicant *wpa_s = ctx;
3884 int save_config = 0;
3887 /* Start with our first choice of Persistent Groups */
3888 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3889 if (go && ssid && ssid_len &&
3890 s->ssid_len == ssid_len &&
3891 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3892 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3895 /* Remove stale persistent group */
3896 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3897 wpa_config_remove_network(wpa_s->conf, s->id);
3902 for (i = 0; i < s->num_p2p_clients; i++) {
3903 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3904 peer, ETH_ALEN) != 0)
3907 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3908 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3909 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3912 s->num_p2p_clients--;
3917 p2p_config_write(wpa_s);
3919 /* Return TRUE if valid SSID remains */
3924 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3925 const u8 *feat_cap, size_t feat_cap_len)
3927 static const char pref[] = " feature_cap=";
3933 * We expect a feature capability to contain at least one byte to be
3934 * reported. The string buffer provided by the caller function is
3935 * expected to be big enough to contain all bytes of the attribute for
3936 * known specifications. This function truncates the reported bytes if
3937 * the feature capability data exceeds the string buffer size.
3939 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3942 os_memcpy(buf, pref, sizeof(pref));
3943 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3944 buf_len - sizeof(pref) + 1,
3945 feat_cap, feat_cap_len);
3947 if (ret != (2 * (int) feat_cap_len))
3948 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3952 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3953 const u8 *adv_mac, const u8 *ses_mac,
3954 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3955 u8 conncap, int passwd_id,
3956 const u8 *persist_ssid,
3957 size_t persist_ssid_size, int response_done,
3958 int prov_start, const char *session_info,
3959 const u8 *feat_cap, size_t feat_cap_len,
3961 const u8 *group_ssid, size_t group_ssid_len)
3963 struct wpa_supplicant *wpa_s = ctx;
3965 struct wpa_ssid *persistent_go, *stale, *s = NULL;
3966 int save_config = 0;
3967 struct wpa_supplicant *go_wpa_s;
3968 char feat_cap_str[256];
3973 os_memset(mac, 0, ETH_ALEN);
3981 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3982 feat_cap, feat_cap_len);
3985 if (session_info == NULL) {
3986 wpa_msg_global(wpa_s, MSG_INFO,
3987 P2P_EVENT_P2PS_PROVISION_START MACSTR
3988 " adv_id=%x conncap=%x"
3990 " session=%x mac=" MACSTR
3991 " dev_passwd_id=%d%s",
3992 MAC2STR(dev), adv_id, conncap,
3994 ses_id, MAC2STR(ses_mac),
3995 passwd_id, feat_cap_str);
3997 wpa_msg_global(wpa_s, MSG_INFO,
3998 P2P_EVENT_P2PS_PROVISION_START MACSTR
3999 " adv_id=%x conncap=%x"
4001 " session=%x mac=" MACSTR
4002 " dev_passwd_id=%d info='%s'%s",
4003 MAC2STR(dev), adv_id, conncap,
4005 ses_id, MAC2STR(ses_mac),
4006 passwd_id, session_info, feat_cap_str);
4011 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4012 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4014 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4015 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4016 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4018 if (persistent_go && !persistent_go->num_p2p_clients) {
4019 /* remove empty persistent GO */
4020 wpa_config_remove_network(wpa_s->conf,
4024 wpa_msg_global(wpa_s, MSG_INFO,
4025 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4027 " adv_id=%x adv_mac=" MACSTR
4028 " session=%x mac=" MACSTR "%s",
4029 MAC2STR(dev), status,
4030 adv_id, MAC2STR(adv_mac),
4031 ses_id, MAC2STR(ses_mac), feat_cap_str);
4035 /* Clean up stale persistent groups with this device */
4036 if (persist_ssid && persist_ssid_size)
4037 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4040 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4041 is_zero_ether_addr(grp_mac)) {
4042 wpa_dbg(wpa_s, MSG_ERROR,
4043 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4048 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4052 if (s && s->ssid_len == stale->ssid_len &&
4053 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4054 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4057 /* Remove stale persistent group */
4058 if (stale->mode != WPAS_MODE_P2P_GO ||
4059 stale->num_p2p_clients <= 1) {
4060 wpa_config_remove_network(wpa_s->conf, stale->id);
4064 for (i = 0; i < stale->num_p2p_clients; i++) {
4065 if (os_memcmp(stale->p2p_client_list +
4067 dev, ETH_ALEN) == 0) {
4068 os_memmove(stale->p2p_client_list +
4070 stale->p2p_client_list +
4072 (stale->num_p2p_clients -
4077 stale->num_p2p_clients--;
4083 p2p_config_write(wpa_s);
4086 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4087 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4089 if (persistent_go && s != persistent_go &&
4090 !persistent_go->num_p2p_clients) {
4091 /* remove empty persistent GO */
4092 wpa_config_remove_network(wpa_s->conf,
4097 wpa_msg_global(wpa_s, MSG_INFO,
4098 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4100 " adv_id=%x adv_mac=" MACSTR
4101 " session=%x mac=" MACSTR
4103 MAC2STR(dev), status,
4104 adv_id, MAC2STR(adv_mac),
4105 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4109 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4111 * We need to copy the interface name. Simply saving a
4112 * pointer isn't enough, since if we use pending_interface_name
4113 * it will be overwritten when the group is added.
4115 char go_ifname[100];
4117 go_ifname[0] = '\0';
4119 wpa_s->global->pending_p2ps_group = 1;
4120 wpa_s->global->pending_p2ps_group_freq = freq;
4122 if (!wpas_p2p_create_iface(wpa_s))
4123 os_memcpy(go_ifname, wpa_s->ifname,
4125 else if (wpa_s->pending_interface_name[0])
4126 os_memcpy(go_ifname,
4127 wpa_s->pending_interface_name,
4130 if (!go_ifname[0]) {
4131 wpas_p2ps_prov_complete(
4132 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4133 dev, adv_mac, ses_mac,
4134 grp_mac, adv_id, ses_id, 0, 0,
4135 NULL, 0, 0, 0, NULL, NULL, 0, 0,
4140 /* If PD Resp complete, start up the GO */
4141 if (response_done && persistent_go) {
4142 wpas_p2p_group_add_persistent(
4143 wpa_s, persistent_go,
4144 0, 0, freq, 0, 0, 0, 0, NULL,
4145 persistent_go->mode ==
4147 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4149 } else if (response_done) {
4150 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4153 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4154 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4156 wpa_s->p2ps_method_config_any = 1;
4158 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4159 os_memcpy(go_ifname, go_wpa_s->ifname,
4162 if (is_zero_ether_addr(grp_mac)) {
4163 wpa_dbg(go_wpa_s, MSG_DEBUG,
4164 "P2P: Setting PIN-1 for ANY");
4165 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4166 "12345670", NULL, 0,
4169 wpa_dbg(go_wpa_s, MSG_DEBUG,
4170 "P2P: Setting PIN-1 for " MACSTR,
4172 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4173 "12345670", NULL, 0,
4177 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4178 wpa_s->p2ps_method_config_any = 1;
4181 wpa_msg_global(wpa_s, MSG_INFO,
4182 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4183 " status=%d conncap=%x"
4184 " adv_id=%x adv_mac=" MACSTR
4185 " session=%x mac=" MACSTR
4186 " dev_passwd_id=%d go=%s%s",
4187 MAC2STR(dev), status, conncap,
4188 adv_id, MAC2STR(adv_mac),
4189 ses_id, MAC2STR(ses_mac),
4190 passwd_id, go_ifname, feat_cap_str);
4194 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4195 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4197 if (persistent_go && !persistent_go->num_p2p_clients) {
4198 /* remove empty persistent GO */
4199 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4202 if (conncap == P2PS_SETUP_CLIENT) {
4203 char ssid_hex[32 * 2 + 1];
4206 wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4207 group_ssid, group_ssid_len);
4210 wpa_msg_global(wpa_s, MSG_INFO,
4211 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4212 " status=%d conncap=%x"
4213 " adv_id=%x adv_mac=" MACSTR
4214 " session=%x mac=" MACSTR
4215 " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4216 MAC2STR(dev), status, conncap,
4217 adv_id, MAC2STR(adv_mac),
4218 ses_id, MAC2STR(ses_mac),
4219 passwd_id, MAC2STR(grp_mac), feat_cap_str,
4220 group_ssid ? " group_ssid=" : "", ssid_hex);
4222 wpa_msg_global(wpa_s, MSG_INFO,
4223 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4224 " status=%d conncap=%x"
4225 " adv_id=%x adv_mac=" MACSTR
4226 " session=%x mac=" MACSTR
4227 " dev_passwd_id=%d%s",
4228 MAC2STR(dev), status, conncap,
4229 adv_id, MAC2STR(adv_mac),
4230 ses_id, MAC2STR(ses_mac),
4231 passwd_id, feat_cap_str);
4236 static int _wpas_p2p_in_progress(void *ctx)
4238 struct wpa_supplicant *wpa_s = ctx;
4239 return wpas_p2p_in_progress(wpa_s);
4243 static int wpas_prov_disc_resp_cb(void *ctx)
4245 struct wpa_supplicant *wpa_s = ctx;
4246 struct wpa_ssid *persistent_go;
4249 if (!wpa_s->global->pending_p2ps_group)
4252 freq = wpa_s->global->pending_p2ps_group_freq;
4253 wpa_s->global->pending_p2ps_group_freq = 0;
4254 wpa_s->global->pending_p2ps_group = 0;
4256 if (wpas_p2p_get_go_group(wpa_s))
4258 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4260 if (persistent_go) {
4261 wpas_p2p_group_add_persistent(
4262 wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4263 persistent_go->mode == WPAS_MODE_P2P_GO ?
4264 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4266 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4273 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4275 unsigned int *freq_list)
4277 struct wpa_supplicant *wpa_s = ctx;
4279 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4280 WPA_IF_P2P_CLIENT, len, freq_list);
4285 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4286 * @global: Pointer to global data from wpa_supplicant_init()
4287 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4288 * Returns: 0 on success, -1 on failure
4290 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4292 struct p2p_config p2p;
4295 if (wpa_s->conf->p2p_disabled)
4298 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4304 os_memset(&p2p, 0, sizeof(p2p));
4306 p2p.debug_print = wpas_p2p_debug_print;
4307 p2p.p2p_scan = wpas_p2p_scan;
4308 p2p.send_action = wpas_send_action;
4309 p2p.send_action_done = wpas_send_action_done;
4310 p2p.go_neg_completed = wpas_go_neg_completed;
4311 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4312 p2p.dev_found = wpas_dev_found;
4313 p2p.dev_lost = wpas_dev_lost;
4314 p2p.find_stopped = wpas_find_stopped;
4315 p2p.start_listen = wpas_start_listen;
4316 p2p.stop_listen = wpas_stop_listen;
4317 p2p.send_probe_resp = wpas_send_probe_resp;
4318 p2p.sd_request = wpas_sd_request;
4319 p2p.sd_response = wpas_sd_response;
4320 p2p.prov_disc_req = wpas_prov_disc_req;
4321 p2p.prov_disc_resp = wpas_prov_disc_resp;
4322 p2p.prov_disc_fail = wpas_prov_disc_fail;
4323 p2p.invitation_process = wpas_invitation_process;
4324 p2p.invitation_received = wpas_invitation_received;
4325 p2p.invitation_result = wpas_invitation_result;
4326 p2p.get_noa = wpas_get_noa;
4327 p2p.go_connected = wpas_go_connected;
4328 p2p.presence_resp = wpas_presence_resp;
4329 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4330 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4331 p2p.get_persistent_group = wpas_get_persistent_group;
4332 p2p.get_go_info = wpas_get_go_info;
4333 p2p.remove_stale_groups = wpas_remove_stale_groups;
4334 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4335 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4336 p2p.p2ps_group_capability = p2ps_group_capability;
4337 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4339 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4340 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4341 p2p.dev_name = wpa_s->conf->device_name;
4342 p2p.manufacturer = wpa_s->conf->manufacturer;
4343 p2p.model_name = wpa_s->conf->model_name;
4344 p2p.model_number = wpa_s->conf->model_number;
4345 p2p.serial_number = wpa_s->conf->serial_number;
4347 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4348 p2p.config_methods = wpa_s->wps->config_methods;
4351 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4352 wpa_printf(MSG_ERROR,
4353 "P2P: Failed to configure supported channel list");
4357 if (wpa_s->conf->p2p_listen_reg_class &&
4358 wpa_s->conf->p2p_listen_channel) {
4359 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4360 p2p.channel = wpa_s->conf->p2p_listen_channel;
4361 p2p.channel_forced = 1;
4364 * Pick one of the social channels randomly as the listen
4367 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4368 &p2p.channel) != 0) {
4369 wpa_printf(MSG_INFO,
4370 "P2P: No social channels supported by the driver - do not enable P2P");
4373 p2p.channel_forced = 0;
4375 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4376 p2p.reg_class, p2p.channel);
4378 if (wpa_s->conf->p2p_oper_reg_class &&
4379 wpa_s->conf->p2p_oper_channel) {
4380 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4381 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4382 p2p.cfg_op_channel = 1;
4383 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4384 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4388 * Use random operation channel from 2.4 GHz band social
4389 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4390 * other preference is indicated.
4392 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4393 &p2p.op_channel) != 0) {
4394 wpa_printf(MSG_ERROR,
4395 "P2P: Failed to select random social channel as operation channel");
4398 p2p.cfg_op_channel = 0;
4399 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4400 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4403 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4404 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4405 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4408 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4409 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4410 p2p.country[2] = 0x04;
4412 os_memcpy(p2p.country, "XX\x04", 3);
4414 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4417 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4418 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4419 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4421 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4422 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4424 p2p.max_peers = 100;
4426 if (wpa_s->conf->p2p_ssid_postfix) {
4427 p2p.ssid_postfix_len =
4428 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4429 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4430 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4431 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4432 p2p.ssid_postfix_len);
4435 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4437 p2p.max_listen = wpa_s->max_remain_on_chan;
4439 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4440 wpa_s->conf->p2p_passphrase_len <= 63)
4441 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4443 p2p.passphrase_len = 8;
4445 global->p2p = p2p_init(&p2p);
4446 if (global->p2p == NULL)
4448 global->p2p_init_wpa_s = wpa_s;
4450 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4451 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4453 p2p_add_wps_vendor_extension(
4454 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4457 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4464 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4465 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4467 * This function deinitialize per-interface P2P data.
4469 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4471 if (wpa_s->driver && wpa_s->drv_priv)
4472 wpa_drv_probe_req_report(wpa_s, 0);
4474 if (wpa_s->go_params) {
4475 /* Clear any stored provisioning info */
4476 p2p_clear_provisioning_info(
4478 wpa_s->go_params->peer_device_addr);
4481 os_free(wpa_s->go_params);
4482 wpa_s->go_params = NULL;
4483 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4484 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4485 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4486 wpa_s->p2p_long_listen = 0;
4487 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4488 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4489 wpas_p2p_remove_pending_group_interface(wpa_s);
4490 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4491 wpas_p2p_listen_work_done(wpa_s);
4492 if (wpa_s->p2p_send_action_work) {
4493 os_free(wpa_s->p2p_send_action_work->ctx);
4494 radio_work_done(wpa_s->p2p_send_action_work);
4495 wpa_s->p2p_send_action_work = NULL;
4497 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4499 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4500 wpa_s->p2p_oob_dev_pw = NULL;
4502 os_free(wpa_s->p2p_group_common_freqs);
4503 wpa_s->p2p_group_common_freqs = NULL;
4504 wpa_s->p2p_group_common_freqs_num = 0;
4506 /* TODO: remove group interface from the driver if this wpa_s instance
4507 * is on top of a P2P group interface */
4512 * wpas_p2p_deinit_global - Deinitialize global P2P module
4513 * @global: Pointer to global data from wpa_supplicant_init()
4515 * This function deinitializes the global (per device) P2P module.
4517 static void wpas_p2p_deinit_global(struct wpa_global *global)
4519 struct wpa_supplicant *wpa_s, *tmp;
4521 wpa_s = global->ifaces;
4523 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4525 /* Remove remaining P2P group interfaces */
4526 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4527 wpa_s = wpa_s->next;
4529 tmp = global->ifaces;
4532 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4537 /* Disconnect from the P2P group and deinit the interface */
4538 wpas_p2p_disconnect(tmp);
4542 * Deinit GO data on any possibly remaining interface (if main
4543 * interface is used as GO).
4545 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4546 if (wpa_s->ap_iface)
4547 wpas_p2p_group_deinit(wpa_s);
4550 p2p_deinit(global->p2p);
4552 global->p2p_init_wpa_s = NULL;
4556 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4558 if (wpa_s->conf->p2p_no_group_iface)
4559 return 0; /* separate interface disabled per configuration */
4560 if (wpa_s->drv_flags &
4561 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4562 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4563 return 1; /* P2P group requires a new interface in every case
4565 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4566 return 0; /* driver does not support concurrent operations */
4567 if (wpa_s->global->ifaces->next)
4568 return 1; /* more that one interface already in use */
4569 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4570 return 1; /* this interface is already in use */
4575 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4576 const u8 *peer_addr,
4577 enum p2p_wps_method wps_method,
4578 int go_intent, const u8 *own_interface_addr,
4579 unsigned int force_freq, int persistent_group,
4580 struct wpa_ssid *ssid, unsigned int pref_freq)
4582 if (persistent_group && wpa_s->conf->persistent_reconnect)
4583 persistent_group = 2;
4586 * Increase GO config timeout if HT40 is used since it takes some time
4587 * to scan channels for coex purposes before the BSS can be started.
4589 p2p_set_config_timeout(wpa_s->global->p2p,
4590 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4592 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4593 go_intent, own_interface_addr, force_freq,
4594 persistent_group, ssid ? ssid->ssid : NULL,
4595 ssid ? ssid->ssid_len : 0,
4596 wpa_s->p2p_pd_before_go_neg, pref_freq,
4597 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4602 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4603 const u8 *peer_addr,
4604 enum p2p_wps_method wps_method,
4605 int go_intent, const u8 *own_interface_addr,
4606 unsigned int force_freq, int persistent_group,
4607 struct wpa_ssid *ssid, unsigned int pref_freq)
4609 if (persistent_group && wpa_s->conf->persistent_reconnect)
4610 persistent_group = 2;
4612 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4613 go_intent, own_interface_addr, force_freq,
4614 persistent_group, ssid ? ssid->ssid : NULL,
4615 ssid ? ssid->ssid_len : 0, pref_freq,
4616 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4621 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4623 wpa_s->p2p_join_scan_count++;
4624 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4625 wpa_s->p2p_join_scan_count);
4626 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4627 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4628 " for join operationg - stop join attempt",
4629 MAC2STR(wpa_s->pending_join_iface_addr));
4630 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4631 if (wpa_s->p2p_auto_pd) {
4632 wpa_s->p2p_auto_pd = 0;
4633 wpa_msg_global(wpa_s, MSG_INFO,
4634 P2P_EVENT_PROV_DISC_FAILURE
4635 " p2p_dev_addr=" MACSTR " status=N/A",
4636 MAC2STR(wpa_s->pending_join_dev_addr));
4639 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4640 P2P_EVENT_GROUP_FORMATION_FAILURE);
4641 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4646 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4649 unsigned int num, i;
4650 struct wpa_used_freq_data *freqs;
4652 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4653 /* Multiple channels are supported and not all are in use */
4657 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4658 sizeof(struct wpa_used_freq_data));
4662 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4663 wpa_s->num_multichan_concurrent);
4665 for (i = 0; i < num; i++) {
4666 if (freqs[i].freq == freq) {
4667 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4674 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4683 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4684 const u8 *peer_dev_addr)
4686 struct wpa_bss *bss;
4689 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4692 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4693 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4698 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4700 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4701 "%ld.%06ld (%supdated in last scan)",
4702 bss->last_update.sec, bss->last_update.usec,
4703 updated ? "": "not ");
4709 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4710 struct wpa_scan_results *scan_res)
4712 struct wpa_bss *bss = NULL;
4714 u8 iface_addr[ETH_ALEN];
4716 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4718 if (wpa_s->global->p2p_disabled)
4721 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4722 scan_res ? (int) scan_res->num : -1,
4723 wpa_s->p2p_auto_join ? "auto_" : "");
4726 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4728 if (wpa_s->p2p_auto_pd) {
4729 int join = wpas_p2p_peer_go(wpa_s,
4730 wpa_s->pending_join_dev_addr);
4732 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4733 wpa_s->auto_pd_scan_retry++;
4734 bss = wpa_bss_get_bssid_latest(
4735 wpa_s, wpa_s->pending_join_dev_addr);
4738 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4739 "the peer " MACSTR " at %d MHz",
4740 wpa_s->auto_pd_scan_retry,
4742 pending_join_dev_addr),
4744 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4752 wpa_s->p2p_auto_pd = 0;
4753 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4754 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4755 MAC2STR(wpa_s->pending_join_dev_addr), join);
4756 if (p2p_prov_disc_req(wpa_s->global->p2p,
4757 wpa_s->pending_join_dev_addr, NULL,
4758 wpa_s->pending_pd_config_methods, join,
4759 0, wpa_s->user_initiated_pd) < 0) {
4760 wpa_s->p2p_auto_pd = 0;
4761 wpa_msg_global(wpa_s, MSG_INFO,
4762 P2P_EVENT_PROV_DISC_FAILURE
4763 " p2p_dev_addr=" MACSTR " status=N/A",
4764 MAC2STR(wpa_s->pending_join_dev_addr));
4769 if (wpa_s->p2p_auto_join) {
4770 int join = wpas_p2p_peer_go(wpa_s,
4771 wpa_s->pending_join_dev_addr);
4773 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4774 "running a GO -> use GO Negotiation");
4775 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4776 P2P_EVENT_FALLBACK_TO_GO_NEG
4777 "reason=peer-not-running-GO");
4778 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4779 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4780 wpa_s->p2p_persistent_group, 0, 0, 0,
4781 wpa_s->p2p_go_intent,
4782 wpa_s->p2p_connect_freq,
4783 wpa_s->p2p_go_vht_center_freq2,
4784 wpa_s->p2p_persistent_id,
4785 wpa_s->p2p_pd_before_go_neg,
4788 wpa_s->p2p_go_max_oper_chwidth,
4793 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4794 "try to join the group", join ? "" :
4797 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4798 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4799 wpa_s->p2p_fallback_to_go_neg = 1;
4803 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4804 wpa_s->pending_join_iface_addr);
4806 p2p_get_interface_addr(wpa_s->global->p2p,
4807 wpa_s->pending_join_dev_addr,
4809 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4810 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4811 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4812 "address for join from " MACSTR " to " MACSTR
4813 " based on newly discovered P2P peer entry",
4814 MAC2STR(wpa_s->pending_join_iface_addr),
4815 MAC2STR(iface_addr));
4816 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4819 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4820 wpa_s->pending_join_iface_addr);
4823 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4824 "from P2P peer table: %d MHz", freq);
4826 if (wpa_s->p2p_join_ssid_len) {
4827 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4828 MACSTR " and SSID %s",
4829 MAC2STR(wpa_s->pending_join_iface_addr),
4830 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4831 wpa_s->p2p_join_ssid_len));
4832 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4833 wpa_s->p2p_join_ssid,
4834 wpa_s->p2p_join_ssid_len);
4836 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4837 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4838 bss = wpa_bss_get_bssid_latest(wpa_s,
4839 wpa_s->pending_join_iface_addr);
4842 u8 dev_addr[ETH_ALEN];
4845 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4846 "from BSS table: %d MHz (SSID %s)", freq,
4847 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4848 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4850 os_memcmp(wpa_s->pending_join_dev_addr,
4851 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4852 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4854 wpa_printf(MSG_DEBUG,
4855 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4857 MAC2STR(wpa_s->pending_join_dev_addr));
4858 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4865 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4866 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4867 P2P_EVENT_GROUP_FORMATION_FAILURE
4868 "reason=FREQ_CONFLICT");
4869 wpas_notify_p2p_group_formation_failure(
4870 wpa_s, "FREQ_CONFLICT");
4874 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4875 "prior to joining an existing group (GO " MACSTR
4877 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4878 wpa_s->pending_pd_before_join = 1;
4880 switch (wpa_s->pending_join_wps_method) {
4881 case WPS_PIN_DISPLAY:
4882 method = WPS_CONFIG_KEYPAD;
4884 case WPS_PIN_KEYPAD:
4885 method = WPS_CONFIG_DISPLAY;
4888 method = WPS_CONFIG_PUSHBUTTON;
4891 method = WPS_CONFIG_P2PS;
4898 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4899 wpa_s->pending_join_dev_addr) ==
4902 * We have already performed provision discovery for
4903 * joining the group. Proceed directly to join
4904 * operation without duplicated provision discovery. */
4905 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4906 "with " MACSTR " already done - proceed to "
4908 MAC2STR(wpa_s->pending_join_dev_addr));
4909 wpa_s->pending_pd_before_join = 0;
4913 if (p2p_prov_disc_req(wpa_s->global->p2p,
4914 wpa_s->pending_join_dev_addr,
4916 freq, wpa_s->user_initiated_pd) < 0) {
4917 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4918 "Discovery Request before joining an "
4920 wpa_s->pending_pd_before_join = 0;
4926 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4927 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4928 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4929 wpas_p2p_check_join_scan_limit(wpa_s);
4933 /* Start join operation immediately */
4934 wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4935 wpa_s->p2p_join_ssid_len);
4939 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4940 const u8 *ssid, size_t ssid_len)
4943 struct wpa_driver_scan_params params;
4944 struct wpabuf *wps_ie, *ies;
4946 int freqs[2] = { 0, 0 };
4949 os_memset(¶ms, 0, sizeof(params));
4951 /* P2P Wildcard SSID */
4952 params.num_ssids = 1;
4953 if (ssid && ssid_len) {
4954 params.ssids[0].ssid = ssid;
4955 params.ssids[0].ssid_len = ssid_len;
4956 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4957 wpa_s->p2p_join_ssid_len = ssid_len;
4959 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4960 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4961 wpa_s->p2p_join_ssid_len = 0;
4964 wpa_s->wps->dev.p2p = 1;
4965 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4966 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4968 if (wps_ie == NULL) {
4969 wpas_p2p_scan_res_join(wpa_s, NULL);
4976 * If freq is not provided, check the operating freq of the GO
4977 * and use a single channel scan on if possible.
4979 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4980 wpa_s->pending_join_iface_addr);
4986 params.freqs = freqs;
4989 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4990 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4992 wpabuf_free(wps_ie);
4993 wpas_p2p_scan_res_join(wpa_s, NULL);
4996 wpabuf_put_buf(ies, wps_ie);
4997 wpabuf_free(wps_ie);
4999 bands = wpas_get_bands(wpa_s, freqs);
5000 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
5002 params.p2p_probe = 1;
5003 params.extra_ies = wpabuf_head(ies);
5004 params.extra_ies_len = wpabuf_len(ies);
5007 * Run a scan to update BSS table and start Provision Discovery once
5008 * the new scan results become available.
5010 ret = wpa_drv_scan(wpa_s, ¶ms);
5012 os_get_reltime(&wpa_s->scan_trigger_time);
5013 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5014 wpa_s->own_scan_requested = 1;
5020 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5022 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5023 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5024 wpas_p2p_check_join_scan_limit(wpa_s);
5029 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5031 struct wpa_supplicant *wpa_s = eloop_ctx;
5032 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5036 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5037 const u8 *dev_addr, enum p2p_wps_method wps_method,
5038 int auto_join, int op_freq,
5039 const u8 *ssid, size_t ssid_len)
5041 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5042 MACSTR " dev " MACSTR " op_freq=%d)%s",
5043 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5044 auto_join ? " (auto_join)" : "");
5045 if (ssid && ssid_len) {
5046 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5047 wpa_ssid_txt(ssid, ssid_len));
5050 wpa_s->p2p_auto_pd = 0;
5051 wpa_s->p2p_auto_join = !!auto_join;
5052 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5053 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5054 wpa_s->pending_join_wps_method = wps_method;
5056 /* Make sure we are not running find during connection establishment */
5057 wpas_p2p_stop_find(wpa_s);
5059 wpa_s->p2p_join_scan_count = 0;
5060 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5065 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5066 const u8 *ssid, size_t ssid_len)
5068 struct wpa_supplicant *group;
5069 struct p2p_go_neg_results res;
5070 struct wpa_bss *bss;
5072 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5075 if (group != wpa_s) {
5076 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5077 sizeof(group->p2p_pin));
5078 group->p2p_wps_method = wpa_s->p2p_wps_method;
5081 * Need to mark the current interface for p2p_group_formation
5082 * when a separate group interface is not used. This is needed
5083 * to allow p2p_cancel stop a pending p2p_connect-join.
5084 * wpas_p2p_init_group_interface() addresses this for the case
5085 * where a separate group interface is used.
5087 wpa_s->global->p2p_group_formation = wpa_s;
5090 group->p2p_in_provisioning = 1;
5091 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5093 os_memset(&res, 0, sizeof(res));
5094 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5095 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5097 res.wps_method = wpa_s->pending_join_wps_method;
5098 if (freq && ssid && ssid_len) {
5100 res.ssid_len = ssid_len;
5101 os_memcpy(res.ssid, ssid, ssid_len);
5103 if (ssid && ssid_len) {
5104 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5107 bss = wpa_bss_get_bssid_latest(
5108 wpa_s, wpa_s->pending_join_iface_addr);
5111 res.freq = bss->freq;
5112 res.ssid_len = bss->ssid_len;
5113 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5114 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5116 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5117 } else if (ssid && ssid_len) {
5118 res.ssid_len = ssid_len;
5119 os_memcpy(res.ssid, ssid, ssid_len);
5120 wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5121 wpa_ssid_txt(ssid, ssid_len));
5125 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5126 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5128 wpa_drv_cancel_remain_on_channel(wpa_s);
5129 wpa_s->off_channel_freq = 0;
5130 wpa_s->roc_waiting_drv_freq = 0;
5132 wpas_start_wps_enrollee(group, &res);
5135 * Allow a longer timeout for join-a-running-group than normal 15
5136 * second group formation timeout since the GO may not have authorized
5137 * our connection yet.
5139 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5140 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5147 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5148 int *force_freq, int *pref_freq, int go,
5149 unsigned int *pref_freq_list,
5150 unsigned int *num_pref_freq)
5152 struct wpa_used_freq_data *freqs;
5153 int res, best_freq, num_unused;
5154 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5156 max_pref_freq = *num_pref_freq;
5159 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5160 sizeof(struct wpa_used_freq_data));
5164 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5165 wpa_s->num_multichan_concurrent);
5168 * It is possible that the total number of used frequencies is bigger
5169 * than the number of frequencies used for P2P, so get the system wide
5170 * number of unused frequencies.
5172 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5174 wpa_printf(MSG_DEBUG,
5175 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5176 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5181 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5183 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5185 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5186 ieee80211_is_dfs(freq)) {
5188 * If freq is a DFS channel and DFS is offloaded
5189 * to the driver, allow P2P GO to use it.
5191 wpa_printf(MSG_DEBUG,
5192 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5195 wpa_printf(MSG_DEBUG,
5196 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5203 for (i = 0; i < num; i++) {
5204 if (freqs[i].freq == freq)
5208 if (num_unused <= 0 && !freq_in_use) {
5209 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5214 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5215 "requested channel (%u MHz)", freq);
5220 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5222 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5223 enum wpa_driver_if_type iface_type;
5226 iface_type = WPA_IF_P2P_GO;
5228 iface_type = WPA_IF_P2P_CLIENT;
5230 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5233 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5236 if (!res && max_pref_freq > 0) {
5237 *num_pref_freq = max_pref_freq;
5239 while (wpas_p2p_disallowed_freq(wpa_s->global,
5240 pref_freq_list[i]) &&
5241 i < *num_pref_freq) {
5242 wpa_printf(MSG_DEBUG,
5243 "P2P: preferred_freq_list[%d]=%d is disallowed",
5244 i, pref_freq_list[i]);
5247 if (i != *num_pref_freq) {
5248 best_freq = pref_freq_list[i];
5249 wpa_printf(MSG_DEBUG,
5250 "P2P: Using preferred_freq_list[%d]=%d",
5253 wpa_printf(MSG_DEBUG,
5254 "P2P: All driver preferred frequencies are disallowed for P2P use");
5258 wpa_printf(MSG_DEBUG,
5259 "P2P: No preferred frequency list available");
5263 /* We have a candidate frequency to use */
5264 if (best_freq > 0) {
5265 if (*pref_freq == 0 && num_unused > 0) {
5266 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5268 *pref_freq = best_freq;
5270 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5272 *force_freq = best_freq;
5274 } else if (num_unused > 0) {
5275 wpa_printf(MSG_DEBUG,
5276 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5279 wpa_printf(MSG_DEBUG,
5280 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5294 * wpas_p2p_connect - Request P2P Group Formation to be started
5295 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5296 * @peer_addr: Address of the peer P2P Device
5297 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5298 * @persistent_group: Whether to create a persistent group
5299 * @auto_join: Whether to select join vs. GO Negotiation automatically
5300 * @join: Whether to join an existing group (as a client) instead of starting
5301 * Group Owner negotiation; @peer_addr is BSSID in that case
5302 * @auth: Whether to only authorize the connection instead of doing that and
5303 * initiating Group Owner negotiation
5304 * @go_intent: GO Intent or -1 to use default
5305 * @freq: Frequency for the group or 0 for auto-selection
5306 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5307 * @persistent_id: Persistent group credentials to use for forcing GO
5308 * parameters or -1 to generate new values (SSID/passphrase)
5309 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5310 * interoperability workaround when initiating group formation
5311 * @ht40: Start GO with 40 MHz channel width
5312 * @vht: Start GO with VHT support
5313 * @vht_chwidth: Channel width supported by GO operating with VHT support
5314 * (VHT_CHANWIDTH_*).
5315 * @group_ssid: Specific Group SSID for join or %NULL if not set
5316 * @group_ssid_len: Length of @group_ssid in octets
5317 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5318 * failure, -2 on failure due to channel not currently available,
5319 * -3 if forced channel is not supported
5321 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5322 const char *pin, enum p2p_wps_method wps_method,
5323 int persistent_group, int auto_join, int join, int auth,
5324 int go_intent, int freq, unsigned int vht_center_freq2,
5325 int persistent_id, int pd, int ht40, int vht,
5326 unsigned int vht_chwidth, const u8 *group_ssid,
5327 size_t group_ssid_len)
5329 int force_freq = 0, pref_freq = 0;
5331 enum wpa_driver_if_type iftype;
5333 struct wpa_ssid *ssid = NULL;
5334 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5336 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5339 if (persistent_id >= 0) {
5340 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5341 if (ssid == NULL || ssid->disabled != 2 ||
5342 ssid->mode != WPAS_MODE_P2P_GO)
5346 os_free(wpa_s->global->add_psk);
5347 wpa_s->global->add_psk = NULL;
5349 wpa_s->global->p2p_fail_on_wps_complete = 0;
5350 wpa_s->global->pending_p2ps_group = 0;
5351 wpa_s->global->pending_p2ps_group_freq = 0;
5352 wpa_s->p2ps_method_config_any = 0;
5355 go_intent = wpa_s->conf->p2p_go_intent;
5358 wpa_s->p2p_long_listen = 0;
5360 wpa_s->p2p_wps_method = wps_method;
5361 wpa_s->p2p_persistent_group = !!persistent_group;
5362 wpa_s->p2p_persistent_id = persistent_id;
5363 wpa_s->p2p_go_intent = go_intent;
5364 wpa_s->p2p_connect_freq = freq;
5365 wpa_s->p2p_fallback_to_go_neg = 0;
5366 wpa_s->p2p_pd_before_go_neg = !!pd;
5367 wpa_s->p2p_go_ht40 = !!ht40;
5368 wpa_s->p2p_go_vht = !!vht;
5369 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5370 wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5373 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5374 else if (wps_method == WPS_PIN_DISPLAY) {
5375 if (wps_generate_pin((unsigned int *) &ret) < 0)
5377 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5379 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5380 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5381 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5383 } else if (wps_method == WPS_P2PS) {
5384 /* Force the P2Ps default PIN to be used */
5385 os_strlcpy(wpa_s->p2p_pin, "12345670", sizeof(wpa_s->p2p_pin));
5387 wpa_s->p2p_pin[0] = '\0';
5389 if (join || auto_join) {
5390 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5392 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5393 "connect a running group from " MACSTR,
5394 MAC2STR(peer_addr));
5395 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5398 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5399 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5401 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5402 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5406 os_get_reltime(&wpa_s->p2p_auto_started);
5407 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5409 wpa_s->p2p_auto_started.sec,
5410 wpa_s->p2p_auto_started.usec);
5412 wpa_s->user_initiated_pd = 1;
5413 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5415 group_ssid, group_ssid_len) < 0)
5420 size = P2P_MAX_PREF_CHANNELS;
5421 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5422 go_intent == 15, pref_freq_list, &size);
5425 wpas_p2p_set_own_freq_preference(wpa_s,
5426 force_freq ? force_freq : pref_freq);
5428 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5430 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5432 if (wpa_s->create_p2p_iface) {
5433 /* Prepare to add a new interface for the group */
5434 iftype = WPA_IF_P2P_GROUP;
5435 if (go_intent == 15)
5436 iftype = WPA_IF_P2P_GO;
5437 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5438 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5439 "interface for the group");
5443 if_addr = wpa_s->pending_interface_addr;
5445 if (wpa_s->p2p_mgmt)
5446 if_addr = wpa_s->parent->own_addr;
5448 if_addr = wpa_s->own_addr;
5449 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5453 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5455 force_freq, persistent_group, ssid,
5461 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5462 go_intent, if_addr, force_freq,
5463 persistent_group, ssid, pref_freq) < 0) {
5464 if (wpa_s->create_p2p_iface)
5465 wpas_p2p_remove_pending_group_interface(wpa_s);
5473 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5474 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5475 * @freq: Frequency of the channel in MHz
5476 * @duration: Duration of the stay on the channel in milliseconds
5478 * This callback is called when the driver indicates that it has started the
5479 * requested remain-on-channel duration.
5481 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5482 unsigned int freq, unsigned int duration)
5484 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5486 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)",
5487 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5488 wpa_s->roc_waiting_drv_freq, freq, duration);
5489 if (wpa_s->off_channel_freq &&
5490 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5491 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5492 wpa_s->pending_listen_duration);
5493 wpa_s->pending_listen_freq = 0;
5495 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5496 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5502 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5504 /* Limit maximum Listen state time based on driver limitation. */
5505 if (timeout > wpa_s->max_remain_on_chan)
5506 timeout = wpa_s->max_remain_on_chan;
5508 return p2p_listen(wpa_s->global->p2p, timeout);
5513 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5514 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5515 * @freq: Frequency of the channel in MHz
5517 * This callback is called when the driver indicates that a remain-on-channel
5518 * operation has been completed, i.e., the duration on the requested channel
5521 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5524 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5525 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5526 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5527 wpas_p2p_listen_work_done(wpa_s);
5528 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5530 if (wpa_s->p2p_long_listen > 0)
5531 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5532 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5533 return; /* P2P module started a new operation */
5534 if (offchannel_pending_action_tx(wpa_s))
5536 if (wpa_s->p2p_long_listen > 0) {
5537 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5538 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5541 * When listen duration is over, stop listen & update p2p_state
5544 p2p_stop_listen(wpa_s->global->p2p);
5550 * wpas_p2p_group_remove - Remove a P2P group
5551 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5552 * @ifname: Network interface name of the group interface or "*" to remove all
5554 * Returns: 0 on success, -1 on failure
5556 * This function is used to remove a P2P group. This can be used to disconnect
5557 * from a group in which the local end is a P2P Client or to end a P2P Group in
5558 * case the local end is the Group Owner. If a virtual network interface was
5559 * created for this group, that interface will be removed. Otherwise, only the
5560 * configured P2P group network will be removed from the interface.
5562 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5564 struct wpa_global *global = wpa_s->global;
5565 struct wpa_supplicant *calling_wpa_s = wpa_s;
5567 if (os_strcmp(ifname, "*") == 0) {
5568 struct wpa_supplicant *prev;
5569 wpa_s = global->ifaces;
5572 wpa_s = wpa_s->next;
5573 if (prev->p2p_group_interface !=
5574 NOT_P2P_GROUP_INTERFACE ||
5575 (prev->current_ssid &&
5576 prev->current_ssid->p2p_group))
5577 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5582 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5583 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5587 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5591 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5595 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5596 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5597 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5600 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5601 &size, pref_freq_list);
5602 if (!res && size > 0) {
5604 while (wpas_p2p_disallowed_freq(wpa_s->global,
5605 pref_freq_list[i]) &&
5607 wpa_printf(MSG_DEBUG,
5608 "P2P: preferred_freq_list[%d]=%d is disallowed",
5609 i, pref_freq_list[i]);
5613 freq = pref_freq_list[i];
5614 wpa_printf(MSG_DEBUG,
5615 "P2P: Using preferred_freq_list[%d]=%d",
5618 wpa_printf(MSG_DEBUG,
5619 "P2P: All driver preferred frequencies are disallowed for P2P use");
5622 wpa_printf(MSG_DEBUG,
5623 "P2P: No preferred frequency list available");
5628 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5630 if (wpa_s->best_24_freq > 0 &&
5631 p2p_supported_freq_go(wpa_s->global->p2p,
5632 wpa_s->best_24_freq)) {
5633 freq = wpa_s->best_24_freq;
5634 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5635 "channel: %d MHz", freq);
5637 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5639 freq = 2412 + (r % 3) * 25;
5640 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5641 "channel: %d MHz", freq);
5646 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5648 if (wpa_s->best_5_freq > 0 &&
5649 p2p_supported_freq_go(wpa_s->global->p2p,
5650 wpa_s->best_5_freq)) {
5651 freq = wpa_s->best_5_freq;
5652 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5653 "channel: %d MHz", freq);
5655 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5657 freq = 5180 + (r % 4) * 20;
5658 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5659 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5660 "5 GHz channel for P2P group");
5663 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5664 "channel: %d MHz", freq);
5668 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5669 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5670 ieee80211_is_dfs(freq)) {
5672 * If freq is a DFS channel and DFS is offloaded to the
5673 * driver, allow P2P GO to use it.
5675 wpa_printf(MSG_DEBUG, "P2P: "
5676 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5680 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5681 "(%u MHz) is not supported for P2P uses",
5690 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5691 const struct p2p_channels *channels,
5694 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5695 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5696 freq_included(wpa_s, channels, freq))
5702 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5703 struct p2p_go_neg_results *params,
5704 const struct p2p_channels *channels)
5708 /* first try some random selection of the social channels */
5709 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5712 for (i = 0; i < 3; i++) {
5713 params->freq = 2412 + ((r + i) % 3) * 25;
5714 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5718 /* try all other channels in operating class 81 */
5719 for (i = 0; i < 11; i++) {
5720 params->freq = 2412 + i * 5;
5722 /* skip social channels; covered in the previous loop */
5723 if (params->freq == 2412 ||
5724 params->freq == 2437 ||
5725 params->freq == 2462)
5728 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5732 /* try all channels in operating class 115 */
5733 for (i = 0; i < 4; i++) {
5734 params->freq = 5180 + i * 20;
5735 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5736 freq_included(wpa_s, channels, params->freq) &&
5737 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5741 /* try all channels in operating class 124 */
5742 for (i = 0; i < 4; i++) {
5743 params->freq = 5745 + i * 20;
5744 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5745 freq_included(wpa_s, channels, params->freq) &&
5746 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5750 /* try social channel class 180 channel 2 */
5751 params->freq = 58320 + 1 * 2160;
5752 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5753 freq_included(wpa_s, channels, params->freq) &&
5754 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5757 /* try all channels in reg. class 180 */
5758 for (i = 0; i < 4; i++) {
5759 params->freq = 58320 + i * 2160;
5760 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5761 freq_included(wpa_s, channels, params->freq) &&
5762 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5767 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5770 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5775 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5776 struct p2p_go_neg_results *params,
5777 int freq, int vht_center_freq2, int ht40,
5778 int vht, int max_oper_chwidth,
5779 const struct p2p_channels *channels)
5781 struct wpa_used_freq_data *freqs;
5783 unsigned int num, i;
5784 int ignore_no_freqs = 0;
5785 int unused_channels = wpas_p2p_num_unused_channels(wpa_s) > 0;
5787 os_memset(params, 0, sizeof(*params));
5788 params->role_go = 1;
5789 params->ht40 = ht40;
5791 params->max_oper_chwidth = max_oper_chwidth;
5792 params->vht_center_freq2 = vht_center_freq2;
5794 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5795 sizeof(struct wpa_used_freq_data));
5799 num = get_shared_radio_freqs_data(wpa_s, freqs,
5800 wpa_s->num_multichan_concurrent);
5802 if (wpa_s->current_ssid &&
5803 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5804 wpa_s->wpa_state == WPA_COMPLETED) {
5805 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5809 * If the frequency selection is done for an active P2P GO that
5810 * is not sharing a frequency, allow to select a new frequency
5811 * even if there are no unused frequencies as we are about to
5812 * move the P2P GO so its frequency can be re-used.
5814 for (i = 0; i < num; i++) {
5815 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5816 freqs[i].flags == 0) {
5817 ignore_no_freqs = 1;
5823 /* try using the forced freq */
5825 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5826 wpa_printf(MSG_DEBUG,
5827 "P2P: Forced GO freq %d MHz not accepted",
5832 for (i = 0; i < num; i++) {
5833 if (freqs[i].freq == freq) {
5834 wpa_printf(MSG_DEBUG,
5835 "P2P: forced freq (%d MHz) is also shared",
5837 params->freq = freq;
5842 if (!ignore_no_freqs && !unused_channels) {
5843 wpa_printf(MSG_DEBUG,
5844 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5849 wpa_printf(MSG_DEBUG,
5850 "P2P: force GO freq (%d MHz) on a free channel",
5852 params->freq = freq;
5856 /* consider using one of the shared frequencies */
5858 (!wpa_s->conf->p2p_ignore_shared_freq || !unused_channels)) {
5859 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5860 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5861 wpa_printf(MSG_DEBUG,
5862 "P2P: Use shared freq (%d MHz) for GO",
5864 params->freq = cand;
5868 /* try using one of the shared freqs */
5869 for (i = 0; i < num; i++) {
5870 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5872 wpa_printf(MSG_DEBUG,
5873 "P2P: Use shared freq (%d MHz) for GO",
5875 params->freq = freqs[i].freq;
5881 if (!ignore_no_freqs && !unused_channels) {
5882 wpa_printf(MSG_DEBUG,
5883 "P2P: Cannot force GO on any of the channels we are already using");
5887 /* try using the setting from the configuration file */
5888 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5889 wpa_s->conf->p2p_oper_channel >= 1 &&
5890 wpa_s->conf->p2p_oper_channel <= 11 &&
5891 wpas_p2p_supported_freq_go(
5893 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5894 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5895 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5896 "frequency %d MHz", params->freq);
5900 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5901 wpa_s->conf->p2p_oper_reg_class == 116 ||
5902 wpa_s->conf->p2p_oper_reg_class == 117 ||
5903 wpa_s->conf->p2p_oper_reg_class == 124 ||
5904 wpa_s->conf->p2p_oper_reg_class == 125 ||
5905 wpa_s->conf->p2p_oper_reg_class == 126 ||
5906 wpa_s->conf->p2p_oper_reg_class == 127) &&
5907 wpas_p2p_supported_freq_go(wpa_s, channels,
5909 5 * wpa_s->conf->p2p_oper_channel)) {
5910 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5911 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5912 "frequency %d MHz", params->freq);
5916 /* Try using best channels */
5917 if (wpa_s->conf->p2p_oper_channel == 0 &&
5918 wpa_s->best_overall_freq > 0 &&
5919 wpas_p2p_supported_freq_go(wpa_s, channels,
5920 wpa_s->best_overall_freq)) {
5921 params->freq = wpa_s->best_overall_freq;
5922 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5923 "channel %d MHz", params->freq);
5927 if (wpa_s->conf->p2p_oper_channel == 0 &&
5928 wpa_s->best_24_freq > 0 &&
5929 wpas_p2p_supported_freq_go(wpa_s, channels,
5930 wpa_s->best_24_freq)) {
5931 params->freq = wpa_s->best_24_freq;
5932 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5933 "channel %d MHz", params->freq);
5937 if (wpa_s->conf->p2p_oper_channel == 0 &&
5938 wpa_s->best_5_freq > 0 &&
5939 wpas_p2p_supported_freq_go(wpa_s, channels,
5940 wpa_s->best_5_freq)) {
5941 params->freq = wpa_s->best_5_freq;
5942 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5943 "channel %d MHz", params->freq);
5947 /* try using preferred channels */
5948 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5949 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5950 params->freq = cand;
5951 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5952 "channels", params->freq);
5956 /* Try using one of the group common freqs */
5957 if (wpa_s->p2p_group_common_freqs) {
5958 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5959 cand = wpa_s->p2p_group_common_freqs[i];
5960 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5961 params->freq = cand;
5962 wpa_printf(MSG_DEBUG,
5963 "P2P: Use freq %d MHz common with the peer",
5970 /* no preference, select some channel */
5971 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5973 if (params->freq == 0) {
5974 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5987 static struct wpa_supplicant *
5988 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5991 struct wpa_supplicant *group_wpa_s;
5993 if (!wpas_p2p_create_iface(wpa_s)) {
5994 if (wpa_s->p2p_mgmt) {
5996 * We may be called on the p2p_dev interface which
5997 * cannot be used for group operations, so always use
5998 * the primary interface.
6000 wpa_s->parent->p2pdev = wpa_s;
6001 wpa_s = wpa_s->parent;
6003 wpa_dbg(wpa_s, MSG_DEBUG,
6004 "P2P: Use primary interface for group operations");
6005 wpa_s->p2p_first_connection_timeout = 0;
6006 if (wpa_s != wpa_s->p2pdev)
6007 wpas_p2p_clone_config(wpa_s, wpa_s->p2pdev);
6011 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
6012 WPA_IF_P2P_CLIENT) < 0) {
6013 wpa_msg_global(wpa_s, MSG_ERROR,
6014 "P2P: Failed to add group interface");
6017 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
6018 if (group_wpa_s == NULL) {
6019 wpa_msg_global(wpa_s, MSG_ERROR,
6020 "P2P: Failed to initialize group interface");
6021 wpas_p2p_remove_pending_group_interface(wpa_s);
6025 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6026 group_wpa_s->ifname);
6027 group_wpa_s->p2p_first_connection_timeout = 0;
6033 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6034 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6035 * @persistent_group: Whether to create a persistent group
6036 * @freq: Frequency for the group or 0 to indicate no hardcoding
6037 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6038 * @ht40: Start GO with 40 MHz channel width
6039 * @vht: Start GO with VHT support
6040 * @vht_chwidth: channel bandwidth for GO operating with VHT support
6041 * Returns: 0 on success, -1 on failure
6043 * This function creates a new P2P group with the local end as the Group Owner,
6044 * i.e., without using Group Owner Negotiation.
6046 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6047 int freq, int vht_center_freq2, int ht40, int vht,
6048 int max_oper_chwidth)
6050 struct p2p_go_neg_results params;
6052 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6055 os_free(wpa_s->global->add_psk);
6056 wpa_s->global->add_psk = NULL;
6058 /* Make sure we are not running find during connection establishment */
6059 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6060 wpas_p2p_stop_find_oper(wpa_s);
6062 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6066 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6067 ht40, vht, max_oper_chwidth, NULL))
6070 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
6071 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
6072 ieee80211_is_dfs(params.freq)) {
6074 * If freq is a DFS channel and DFS is offloaded to the
6075 * driver, allow P2P GO to use it.
6077 wpa_printf(MSG_DEBUG,
6078 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6079 __func__, params.freq);
6081 wpa_printf(MSG_DEBUG,
6082 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6087 p2p_go_params(wpa_s->global->p2p, ¶ms);
6088 params.persistent_group = persistent_group;
6090 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6093 wpas_start_wps_go(wpa_s, ¶ms, 0);
6099 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6100 struct wpa_ssid *params, int addr_allocated,
6101 int freq, int force_scan)
6103 struct wpa_ssid *ssid;
6105 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6109 os_get_reltime(&wpa_s->scan_min_time);
6110 wpa_s->p2p_last_4way_hs_fail = NULL;
6112 wpa_supplicant_ap_deinit(wpa_s);
6114 ssid = wpa_config_add_network(wpa_s->conf);
6117 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6118 wpa_config_set_network_defaults(ssid);
6119 ssid->temporary = 1;
6120 ssid->proto = WPA_PROTO_RSN;
6121 ssid->pbss = params->pbss;
6122 ssid->pairwise_cipher = params->pbss ? WPA_CIPHER_GCMP :
6124 ssid->group_cipher = params->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
6125 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6126 ssid->ssid = os_malloc(params->ssid_len);
6127 if (ssid->ssid == NULL) {
6128 wpa_config_remove_network(wpa_s->conf, ssid->id);
6131 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6132 ssid->ssid_len = params->ssid_len;
6133 ssid->p2p_group = 1;
6134 ssid->export_keys = 1;
6135 if (params->psk_set) {
6136 os_memcpy(ssid->psk, params->psk, 32);
6139 if (params->passphrase)
6140 ssid->passphrase = os_strdup(params->passphrase);
6142 wpa_s->show_group_started = 1;
6143 wpa_s->p2p_in_invitation = 1;
6144 wpa_s->p2p_invite_go_freq = freq;
6145 wpa_s->p2p_go_group_formation_completed = 0;
6146 wpa_s->global->p2p_group_formation = wpa_s;
6148 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6150 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6151 wpas_p2p_group_formation_timeout,
6152 wpa_s->p2pdev, NULL);
6153 wpa_supplicant_select_network(wpa_s, ssid);
6159 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6160 struct wpa_ssid *ssid, int addr_allocated,
6161 int force_freq, int neg_freq,
6162 int vht_center_freq2, int ht40,
6163 int vht, int max_oper_chwidth,
6164 const struct p2p_channels *channels,
6165 int connection_timeout, int force_scan)
6167 struct p2p_go_neg_results params;
6170 if (ssid->disabled != 2 || ssid->ssid == NULL)
6173 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6174 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6175 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6178 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6179 wpa_s->p2pdev, NULL)) {
6181 * This can happen if Invitation Response frame was lost
6182 * and the peer (GO of a persistent group) tries to
6183 * invite us again. Reschedule the timeout to avoid
6184 * terminating the wait for the connection too early
6185 * since we now know that the peer is still trying to
6186 * invite us instead of having already started the GO.
6188 wpa_printf(MSG_DEBUG,
6189 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6190 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6191 wpas_p2p_group_formation_timeout,
6192 wpa_s->p2pdev, NULL);
6197 os_free(wpa_s->global->add_psk);
6198 wpa_s->global->add_psk = NULL;
6200 /* Make sure we are not running find during connection establishment */
6201 wpas_p2p_stop_find_oper(wpa_s);
6203 wpa_s->p2p_fallback_to_go_neg = 0;
6205 if (ssid->mode == WPAS_MODE_P2P_GO) {
6206 if (force_freq > 0) {
6207 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6211 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6213 (freq > 0 && !freq_included(wpa_s, channels, freq)))
6216 } else if (ssid->mode == WPAS_MODE_INFRA) {
6218 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6219 struct os_reltime now;
6220 struct wpa_bss *bss =
6221 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6223 os_get_reltime(&now);
6225 !os_reltime_expired(&now, &bss->last_update, 5) &&
6226 freq_included(wpa_s, channels, bss->freq))
6232 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6238 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6239 ht40, vht, max_oper_chwidth, channels))
6243 params.psk_set = ssid->psk_set;
6245 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6246 if (ssid->passphrase) {
6247 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6248 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6249 "persistent group");
6252 os_strlcpy(params.passphrase, ssid->passphrase,
6253 sizeof(params.passphrase));
6255 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6256 params.ssid_len = ssid->ssid_len;
6257 params.persistent_group = 1;
6259 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6263 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6265 wpa_s->p2p_first_connection_timeout = connection_timeout;
6266 wpas_start_wps_go(wpa_s, ¶ms, 0);
6272 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6273 struct wpabuf *proberesp_ies)
6275 struct wpa_supplicant *wpa_s = ctx;
6276 if (wpa_s->ap_iface) {
6277 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6278 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6279 wpabuf_free(beacon_ies);
6280 wpabuf_free(proberesp_ies);
6284 wpabuf_free(hapd->p2p_beacon_ie);
6285 hapd->p2p_beacon_ie = beacon_ies;
6287 wpabuf_free(hapd->p2p_probe_resp_ie);
6288 hapd->p2p_probe_resp_ie = proberesp_ies;
6290 wpabuf_free(beacon_ies);
6291 wpabuf_free(proberesp_ies);
6293 wpa_supplicant_ap_update_beacon(wpa_s);
6297 static void wpas_p2p_idle_update(void *ctx, int idle)
6299 struct wpa_supplicant *wpa_s = ctx;
6300 if (!wpa_s->ap_iface)
6302 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6304 if (wpa_s->global->p2p_fail_on_wps_complete &&
6305 wpa_s->p2p_in_provisioning) {
6306 wpas_p2p_grpform_fail_after_wps(wpa_s);
6309 wpas_p2p_set_group_idle_timeout(wpa_s);
6311 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6315 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6316 struct wpa_ssid *ssid)
6318 struct p2p_group *group;
6319 struct p2p_group_config *cfg;
6321 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6325 cfg = os_zalloc(sizeof(*cfg));
6329 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6330 cfg->persistent_group = 2;
6331 else if (ssid->p2p_persistent_group)
6332 cfg->persistent_group = 1;
6333 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6334 if (wpa_s->max_stations &&
6335 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6336 cfg->max_clients = wpa_s->max_stations;
6338 cfg->max_clients = wpa_s->conf->max_num_sta;
6339 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6340 cfg->ssid_len = ssid->ssid_len;
6341 cfg->freq = ssid->frequency;
6342 cfg->cb_ctx = wpa_s;
6343 cfg->ie_update = wpas_p2p_ie_update;
6344 cfg->idle_update = wpas_p2p_idle_update;
6345 cfg->ip_addr_alloc = WPA_GET_BE32(wpa_s->p2pdev->conf->ip_addr_start)
6348 group = p2p_group_init(wpa_s->global->p2p, cfg);
6351 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6352 p2p_group_notif_formation_done(group);
6353 wpa_s->p2p_group = group;
6358 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6361 struct wpa_ssid *ssid = wpa_s->current_ssid;
6363 if (!wpa_s->p2p_in_provisioning) {
6364 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6365 "provisioning not in progress");
6369 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6370 u8 go_dev_addr[ETH_ALEN];
6371 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6372 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6374 /* Clear any stored provisioning info */
6375 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6378 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6380 wpa_s->p2p_go_group_formation_completed = 1;
6381 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6383 * Use a separate timeout for initial data connection to
6384 * complete to allow the group to be removed automatically if
6385 * something goes wrong in this step before the P2P group idle
6386 * timeout mechanism is taken into use.
6388 wpa_dbg(wpa_s, MSG_DEBUG,
6389 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6390 P2P_MAX_INITIAL_CONN_WAIT);
6391 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6392 wpas_p2p_group_formation_timeout,
6393 wpa_s->p2pdev, NULL);
6394 /* Complete group formation on successful data connection. */
6395 wpa_s->p2p_go_group_formation_completed = 0;
6398 * Use a separate timeout for initial data connection to
6399 * complete to allow the group to be removed automatically if
6400 * the client does not complete data connection successfully.
6402 wpa_dbg(wpa_s, MSG_DEBUG,
6403 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6404 P2P_MAX_INITIAL_CONN_WAIT_GO);
6405 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6406 wpas_p2p_group_formation_timeout,
6407 wpa_s->p2pdev, NULL);
6409 * Complete group formation on first successful data connection
6411 wpa_s->p2p_go_group_formation_completed = 0;
6413 if (wpa_s->global->p2p)
6414 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6415 wpas_group_formation_completed(wpa_s, 1, 0);
6419 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6420 struct wps_event_fail *fail)
6422 if (!wpa_s->p2p_in_provisioning) {
6423 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6424 "provisioning not in progress");
6428 if (wpa_s->go_params) {
6429 p2p_clear_provisioning_info(
6431 wpa_s->go_params->peer_device_addr);
6434 wpas_notify_p2p_wps_failed(wpa_s, fail);
6436 if (wpa_s == wpa_s->global->p2p_group_formation) {
6438 * Allow some time for the failed WPS negotiation exchange to
6439 * complete, but remove the group since group formation cannot
6440 * succeed after provisioning failure.
6442 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6443 wpa_s->global->p2p_fail_on_wps_complete = 1;
6444 eloop_deplete_timeout(0, 50000,
6445 wpas_p2p_group_formation_timeout,
6446 wpa_s->p2pdev, NULL);
6451 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6453 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6454 !wpa_s->p2p_in_provisioning)
6457 wpas_p2p_grpform_fail_after_wps(wpa_s);
6463 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6464 const char *config_method,
6465 enum wpas_p2p_prov_disc_use use,
6466 struct p2ps_provision *p2ps_prov)
6470 wpa_s->global->pending_p2ps_group = 0;
6471 wpa_s->global->pending_p2ps_group_freq = 0;
6472 wpa_s->p2p_fallback_to_go_neg = 0;
6473 wpa_s->pending_pd_use = NORMAL_PD;
6474 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6475 p2ps_prov->conncap = p2ps_group_capability(
6476 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6477 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6479 wpa_printf(MSG_DEBUG,
6480 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6481 __func__, p2ps_prov->conncap,
6482 p2ps_prov->adv_id, p2ps_prov->conncap,
6483 p2ps_prov->status, p2ps_prov->info);
6486 } else if (os_strncmp(config_method, "display", 7) == 0)
6487 config_methods = WPS_CONFIG_DISPLAY;
6488 else if (os_strncmp(config_method, "keypad", 6) == 0)
6489 config_methods = WPS_CONFIG_KEYPAD;
6490 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6491 os_strncmp(config_method, "pushbutton", 10) == 0)
6492 config_methods = WPS_CONFIG_PUSHBUTTON;
6494 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6499 if (use == WPAS_P2P_PD_AUTO) {
6500 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6501 wpa_s->pending_pd_config_methods = config_methods;
6502 wpa_s->p2p_auto_pd = 1;
6503 wpa_s->p2p_auto_join = 0;
6504 wpa_s->pending_pd_before_join = 0;
6505 wpa_s->auto_pd_scan_retry = 0;
6506 wpas_p2p_stop_find(wpa_s);
6507 wpa_s->p2p_join_scan_count = 0;
6508 os_get_reltime(&wpa_s->p2p_auto_started);
6509 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6510 wpa_s->p2p_auto_started.sec,
6511 wpa_s->p2p_auto_started.usec);
6512 wpas_p2p_join_scan(wpa_s, NULL);
6516 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6521 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6522 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6527 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6530 return p2p_scan_result_text(ies, ies_len, buf, end);
6534 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6536 if (!offchannel_pending_action_tx(wpa_s))
6539 if (wpa_s->p2p_send_action_work) {
6540 wpas_p2p_free_send_action_work(wpa_s);
6541 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
6543 offchannel_send_action_done(wpa_s);
6546 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6547 "operation request");
6548 offchannel_clear_pending_action_tx(wpa_s);
6552 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6553 enum p2p_discovery_type type,
6554 unsigned int num_req_dev_types, const u8 *req_dev_types,
6555 const u8 *dev_id, unsigned int search_delay,
6556 u8 seek_cnt, const char **seek_string, int freq)
6558 wpas_p2p_clear_pending_action_tx(wpa_s);
6559 wpa_s->p2p_long_listen = 0;
6561 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6562 wpa_s->p2p_in_provisioning)
6565 wpa_supplicant_cancel_sched_scan(wpa_s);
6567 return p2p_find(wpa_s->global->p2p, timeout, type,
6568 num_req_dev_types, req_dev_types, dev_id,
6569 search_delay, seek_cnt, seek_string, freq);
6573 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6574 struct wpa_scan_results *scan_res)
6576 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6578 if (wpa_s->p2p_scan_work) {
6579 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6580 wpa_s->p2p_scan_work = NULL;
6581 radio_work_done(work);
6584 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6588 * Indicate that results have been processed so that the P2P module can
6589 * continue pending tasks.
6591 p2p_scan_res_handled(wpa_s->global->p2p);
6595 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6597 wpas_p2p_clear_pending_action_tx(wpa_s);
6598 wpa_s->p2p_long_listen = 0;
6599 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6600 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6602 if (wpa_s->global->p2p)
6603 p2p_stop_find(wpa_s->global->p2p);
6605 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6606 wpa_printf(MSG_DEBUG,
6607 "P2P: Do not consider the scan results after stop_find");
6608 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6613 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6615 wpas_p2p_stop_find_oper(wpa_s);
6616 if (!wpa_s->global->pending_group_iface_for_p2ps)
6617 wpas_p2p_remove_pending_group_interface(wpa_s);
6621 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6623 struct wpa_supplicant *wpa_s = eloop_ctx;
6624 wpa_s->p2p_long_listen = 0;
6628 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6632 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6635 wpa_supplicant_cancel_sched_scan(wpa_s);
6636 wpas_p2p_clear_pending_action_tx(wpa_s);
6640 * This is a request for unlimited Listen state. However, at
6641 * least for now, this is mapped to a Listen state for one
6646 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6647 wpa_s->p2p_long_listen = 0;
6650 * Stop previous find/listen operation to avoid trying to request a new
6651 * remain-on-channel operation while the driver is still running the
6654 if (wpa_s->global->p2p)
6655 p2p_stop_find(wpa_s->global->p2p);
6657 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6658 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6659 wpa_s->p2p_long_listen = timeout * 1000;
6660 eloop_register_timeout(timeout, 0,
6661 wpas_p2p_long_listen_timeout,
6669 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6670 u8 *buf, size_t len, int p2p_group)
6672 struct wpabuf *p2p_ie;
6675 if (wpa_s->global->p2p_disabled)
6678 * Advertize mandatory cross connection capability even on
6679 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6681 if (wpa_s->conf->p2p_disabled && p2p_group)
6683 if (wpa_s->global->p2p == NULL)
6688 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6689 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6691 wpabuf_free(p2p_ie);
6697 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6698 const u8 *dst, const u8 *bssid,
6699 const u8 *ie, size_t ie_len,
6700 unsigned int rx_freq, int ssi_signal)
6702 if (wpa_s->global->p2p_disabled)
6704 if (wpa_s->global->p2p == NULL)
6707 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6708 ie, ie_len, rx_freq)) {
6709 case P2P_PREQ_NOT_P2P:
6710 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6713 case P2P_PREQ_MALFORMED:
6714 case P2P_PREQ_NOT_LISTEN:
6715 case P2P_PREQ_NOT_PROCESSED:
6716 default: /* make gcc happy */
6718 case P2P_PREQ_PROCESSED:
6724 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6725 const u8 *sa, const u8 *bssid,
6726 u8 category, const u8 *data, size_t len, int freq)
6728 if (wpa_s->global->p2p_disabled)
6730 if (wpa_s->global->p2p == NULL)
6733 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6738 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6742 if (wpa_s->global->p2p_disabled)
6744 if (wpa_s->global->p2p == NULL)
6747 bands = wpas_get_bands(wpa_s, NULL);
6748 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
6752 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6754 p2p_group_deinit(wpa_s->p2p_group);
6755 wpa_s->p2p_group = NULL;
6757 wpa_s->ap_configured_cb = NULL;
6758 wpa_s->ap_configured_cb_ctx = NULL;
6759 wpa_s->ap_configured_cb_data = NULL;
6760 wpa_s->connect_without_scan = NULL;
6764 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6766 wpa_s->p2p_long_listen = 0;
6768 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6771 return p2p_reject(wpa_s->global->p2p, addr);
6775 /* Invite to reinvoke a persistent group */
6776 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6777 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6778 int vht_center_freq2, int ht40, int vht, int max_chwidth,
6781 enum p2p_invite_role role;
6785 int no_pref_freq_given = pref_freq == 0;
6786 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6788 wpa_s->global->p2p_invite_group = NULL;
6790 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6792 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6794 wpa_s->p2p_persistent_go_freq = freq;
6795 wpa_s->p2p_go_ht40 = !!ht40;
6796 wpa_s->p2p_go_vht = !!vht;
6797 wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6798 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6799 if (ssid->mode == WPAS_MODE_P2P_GO) {
6800 role = P2P_INVITE_ROLE_GO;
6801 if (peer_addr == NULL) {
6802 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6803 "address in invitation command");
6806 if (wpas_p2p_create_iface(wpa_s)) {
6807 if (wpas_p2p_add_group_interface(wpa_s,
6808 WPA_IF_P2P_GO) < 0) {
6809 wpa_printf(MSG_ERROR, "P2P: Failed to "
6810 "allocate a new interface for the "
6814 bssid = wpa_s->pending_interface_addr;
6815 } else if (wpa_s->p2p_mgmt)
6816 bssid = wpa_s->parent->own_addr;
6818 bssid = wpa_s->own_addr;
6820 role = P2P_INVITE_ROLE_CLIENT;
6821 peer_addr = ssid->bssid;
6823 wpa_s->pending_invite_ssid_id = ssid->id;
6825 size = P2P_MAX_PREF_CHANNELS;
6826 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6827 role == P2P_INVITE_ROLE_GO,
6828 pref_freq_list, &size);
6832 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6835 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6837 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6838 no_pref_freq_given && pref_freq > 0 &&
6839 wpa_s->num_multichan_concurrent > 1 &&
6840 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6841 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6847 * Stop any find/listen operations before invitation and possibly
6848 * connection establishment.
6850 wpas_p2p_stop_find_oper(wpa_s);
6852 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6853 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6858 /* Invite to join an active group */
6859 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6860 const u8 *peer_addr, const u8 *go_dev_addr)
6862 struct wpa_global *global = wpa_s->global;
6863 enum p2p_invite_role role;
6865 struct wpa_ssid *ssid;
6867 int freq = 0, force_freq = 0, pref_freq = 0;
6869 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6871 wpa_s->p2p_persistent_go_freq = 0;
6872 wpa_s->p2p_go_ht40 = 0;
6873 wpa_s->p2p_go_vht = 0;
6874 wpa_s->p2p_go_vht_center_freq2 = 0;
6875 wpa_s->p2p_go_max_oper_chwidth = 0;
6877 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6878 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6881 if (wpa_s == NULL) {
6882 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6886 ssid = wpa_s->current_ssid;
6888 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6893 wpa_s->global->p2p_invite_group = wpa_s;
6894 persistent = ssid->p2p_persistent_group &&
6895 wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
6896 ssid->ssid, ssid->ssid_len);
6898 if (ssid->mode == WPAS_MODE_P2P_GO) {
6899 role = P2P_INVITE_ROLE_ACTIVE_GO;
6900 bssid = wpa_s->own_addr;
6901 if (go_dev_addr == NULL)
6902 go_dev_addr = wpa_s->global->p2p_dev_addr;
6903 freq = ssid->frequency;
6905 role = P2P_INVITE_ROLE_CLIENT;
6906 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6907 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6908 "invite to current group");
6911 bssid = wpa_s->bssid;
6912 if (go_dev_addr == NULL &&
6913 !is_zero_ether_addr(wpa_s->go_dev_addr))
6914 go_dev_addr = wpa_s->go_dev_addr;
6915 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6916 (int) wpa_s->assoc_freq;
6918 wpa_s->p2pdev->pending_invite_ssid_id = -1;
6920 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6923 size = P2P_MAX_PREF_CHANNELS;
6924 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6925 role == P2P_INVITE_ROLE_ACTIVE_GO,
6926 pref_freq_list, &size);
6929 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6931 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6932 ssid->ssid, ssid->ssid_len, force_freq,
6933 go_dev_addr, persistent, pref_freq, -1);
6937 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6939 struct wpa_ssid *ssid = wpa_s->current_ssid;
6940 u8 go_dev_addr[ETH_ALEN];
6946 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6947 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6948 wpa_s->p2pdev, NULL);
6951 if (!wpa_s->show_group_started || !ssid)
6954 wpa_s->show_group_started = 0;
6955 if (!wpa_s->p2p_go_group_formation_completed &&
6956 wpa_s->global->p2p_group_formation == wpa_s) {
6957 wpa_dbg(wpa_s, MSG_DEBUG,
6958 "P2P: Marking group formation completed on client on data connection");
6959 wpa_s->p2p_go_group_formation_completed = 1;
6960 wpa_s->global->p2p_group_formation = NULL;
6961 wpa_s->p2p_in_provisioning = 0;
6962 wpa_s->p2p_in_invitation = 0;
6965 os_memset(go_dev_addr, 0, ETH_ALEN);
6966 if (ssid->bssid_set)
6967 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6968 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6970 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6972 if (wpa_s->global->p2p_group_formation == wpa_s)
6973 wpa_s->global->p2p_group_formation = NULL;
6975 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6976 (int) wpa_s->assoc_freq;
6979 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6982 res = os_snprintf(ip_addr, sizeof(ip_addr),
6983 " ip_addr=%u.%u.%u.%u "
6984 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6985 ip[0], ip[1], ip[2], ip[3],
6986 ip[4], ip[5], ip[6], ip[7],
6987 ip[8], ip[9], ip[10], ip[11]);
6988 if (os_snprintf_error(sizeof(ip_addr), res))
6992 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6993 ssid->passphrase == NULL && ssid->psk_set ?
6995 ssid->passphrase, go_dev_addr, persistent,
6999 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
7002 wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 1);
7006 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
7007 u32 interval1, u32 duration2, u32 interval2)
7011 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7014 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
7015 wpa_s->current_ssid == NULL ||
7016 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
7019 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
7020 wpa_s->own_addr, wpa_s->assoc_freq,
7021 duration1, interval1, duration2, interval2);
7023 wpa_s->waiting_presence_resp = 1;
7029 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
7030 unsigned int interval)
7032 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7035 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7039 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7041 if (wpa_s->current_ssid == NULL) {
7043 * current_ssid can be cleared when P2P client interface gets
7044 * disconnected, so assume this interface was used as P2P
7049 return wpa_s->current_ssid->p2p_group &&
7050 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7054 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7056 struct wpa_supplicant *wpa_s = eloop_ctx;
7058 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7059 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7064 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7066 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7070 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7074 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7075 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7077 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7080 timeout = wpa_s->conf->p2p_group_idle;
7081 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7082 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7083 timeout = P2P_MAX_CLIENT_IDLE;
7089 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7090 timeout = 0; /* special client mode no-timeout */
7095 if (wpa_s->p2p_in_provisioning) {
7097 * Use the normal group formation timeout during the
7098 * provisioning phase to avoid terminating this process too
7099 * early due to group idle timeout.
7101 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7102 "during provisioning");
7106 if (wpa_s->show_group_started) {
7108 * Use the normal group formation timeout between the end of
7109 * the provisioning phase and completion of 4-way handshake to
7110 * avoid terminating this process too early due to group idle
7113 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7114 "while waiting for initial 4-way handshake to "
7119 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7121 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7126 /* Returns 1 if the interface was removed */
7127 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7128 u16 reason_code, const u8 *ie, size_t ie_len,
7129 int locally_generated)
7131 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7134 if (!locally_generated)
7135 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7138 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7139 wpa_s->current_ssid &&
7140 wpa_s->current_ssid->p2p_group &&
7141 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7142 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7143 "session is ending");
7144 if (wpas_p2p_group_delete(wpa_s,
7145 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7154 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7155 u16 reason_code, const u8 *ie, size_t ie_len,
7156 int locally_generated)
7158 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7161 if (!locally_generated)
7162 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7167 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7169 struct p2p_data *p2p = wpa_s->global->p2p;
7174 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7177 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7178 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7180 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7181 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7184 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7185 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7187 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7188 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7190 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7191 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7192 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7193 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7194 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7197 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7198 p2p_set_sec_dev_types(p2p,
7199 (void *) wpa_s->conf->sec_device_type,
7200 wpa_s->conf->num_sec_device_types);
7202 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7204 p2p_remove_wps_vendor_extensions(p2p);
7205 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7206 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7208 p2p_add_wps_vendor_extension(
7209 p2p, wpa_s->conf->wps_vendor_ext[i]);
7213 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7214 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7216 country[0] = wpa_s->conf->country[0];
7217 country[1] = wpa_s->conf->country[1];
7219 p2p_set_country(p2p, country);
7222 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7223 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7224 wpa_s->conf->p2p_ssid_postfix ?
7225 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7229 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7230 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7232 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7233 u8 reg_class, channel;
7238 if (wpa_s->conf->p2p_listen_reg_class &&
7239 wpa_s->conf->p2p_listen_channel) {
7240 reg_class = wpa_s->conf->p2p_listen_reg_class;
7241 channel = wpa_s->conf->p2p_listen_channel;
7246 * Pick one of the social channels randomly as the
7249 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7252 channel = 1 + (r % 3) * 5;
7255 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7258 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7261 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7262 u8 op_reg_class, op_channel, cfg_op_channel;
7265 if (wpa_s->conf->p2p_oper_reg_class &&
7266 wpa_s->conf->p2p_oper_channel) {
7267 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7268 op_channel = wpa_s->conf->p2p_oper_channel;
7273 * Use random operation channel from (1, 6, 11)
7274 *if no other preference is indicated.
7276 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7279 op_channel = 1 + (r % 3) * 5;
7282 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7285 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7289 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7290 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7291 wpa_s->conf->p2p_pref_chan) < 0) {
7292 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7296 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7297 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7302 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7303 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7307 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7310 if (!wpa_s->ap_iface)
7312 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7317 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7319 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7322 wpa_s->global->cross_connection = enabled;
7323 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7326 struct wpa_supplicant *iface;
7328 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7330 if (iface->cross_connect_enabled == 0)
7333 iface->cross_connect_enabled = 0;
7334 iface->cross_connect_in_use = 0;
7335 wpa_msg_global(iface->p2pdev, MSG_INFO,
7336 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7338 iface->cross_connect_uplink);
7346 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7348 struct wpa_supplicant *iface;
7350 if (!uplink->global->cross_connection)
7353 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7354 if (!iface->cross_connect_enabled)
7356 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7359 if (iface->ap_iface == NULL)
7361 if (iface->cross_connect_in_use)
7364 iface->cross_connect_in_use = 1;
7365 wpa_msg_global(iface->p2pdev, MSG_INFO,
7366 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7367 iface->ifname, iface->cross_connect_uplink);
7372 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7374 struct wpa_supplicant *iface;
7376 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7377 if (!iface->cross_connect_enabled)
7379 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7382 if (!iface->cross_connect_in_use)
7385 wpa_msg_global(iface->p2pdev, MSG_INFO,
7386 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7387 iface->ifname, iface->cross_connect_uplink);
7388 iface->cross_connect_in_use = 0;
7393 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7395 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7396 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7397 wpa_s->cross_connect_disallowed)
7398 wpas_p2p_disable_cross_connect(wpa_s);
7400 wpas_p2p_enable_cross_connect(wpa_s);
7401 if (!wpa_s->ap_iface &&
7402 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7403 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7407 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7409 wpas_p2p_disable_cross_connect(wpa_s);
7410 if (!wpa_s->ap_iface &&
7411 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7413 wpas_p2p_set_group_idle_timeout(wpa_s);
7417 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7419 struct wpa_supplicant *iface;
7421 if (!wpa_s->global->cross_connection)
7424 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7427 if (iface->drv_flags &
7428 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7430 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7431 iface != wpa_s->parent)
7434 wpa_s->cross_connect_enabled = 1;
7435 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7436 sizeof(wpa_s->cross_connect_uplink));
7437 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7438 "%s to %s whenever uplink is available",
7439 wpa_s->ifname, wpa_s->cross_connect_uplink);
7441 if (iface->ap_iface || iface->current_ssid == NULL ||
7442 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7443 iface->cross_connect_disallowed ||
7444 iface->wpa_state != WPA_COMPLETED)
7447 wpa_s->cross_connect_in_use = 1;
7448 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
7449 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7450 wpa_s->ifname, wpa_s->cross_connect_uplink);
7456 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7458 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7459 !wpa_s->p2p_in_provisioning)
7460 return 0; /* not P2P client operation */
7462 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7464 if (wpa_s != wpa_s->p2pdev)
7465 wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
7466 wpas_p2p_group_formation_failed(wpa_s, 0);
7471 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7473 struct wpa_supplicant *wpa_s = eloop_ctx;
7474 wpas_p2p_notif_pbc_overlap(wpa_s);
7478 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7479 enum wpas_p2p_channel_update_trig trig)
7481 struct p2p_channels chan, cli_chan;
7482 struct wpa_used_freq_data *freqs = NULL;
7483 unsigned int num = wpa_s->num_multichan_concurrent;
7485 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7488 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7492 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7494 os_memset(&chan, 0, sizeof(chan));
7495 os_memset(&cli_chan, 0, sizeof(cli_chan));
7496 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7497 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7502 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7504 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7507 * The used frequencies map changed, so it is possible that a GO is
7508 * using a channel that is no longer valid for P2P use. It is also
7509 * possible that due to policy consideration, it would be preferable to
7510 * move it to a frequency already used by other station interfaces.
7512 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7518 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7519 struct wpa_scan_results *scan_res)
7521 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7525 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7527 struct wpa_global *global = wpa_s->global;
7531 if (global->p2p == NULL)
7534 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7536 if (wpa_s->pending_interface_name[0] &&
7537 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7540 peer = p2p_get_go_neg_peer(global->p2p);
7542 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7543 MACSTR, MAC2STR(peer));
7544 p2p_unauthorize(global->p2p, peer);
7548 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7549 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7550 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7554 if (wpa_s->pending_pd_before_join) {
7555 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7556 wpa_s->pending_pd_before_join = 0;
7560 wpas_p2p_stop_find(wpa_s);
7562 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7563 if (wpa_s == global->p2p_group_formation &&
7564 (wpa_s->p2p_in_provisioning ||
7565 wpa_s->parent->pending_interface_type ==
7566 WPA_IF_P2P_CLIENT)) {
7567 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7568 "formation found - cancelling",
7571 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7572 wpa_s->p2pdev, NULL);
7573 if (wpa_s->p2p_in_provisioning) {
7574 wpas_group_formation_completed(wpa_s, 0, 0);
7577 wpas_p2p_group_delete(wpa_s,
7578 P2P_GROUP_REMOVAL_REQUESTED);
7580 } else if (wpa_s->p2p_in_invitation) {
7581 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7584 wpas_p2p_group_formation_failed(wpa_s, 0);
7590 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7598 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7600 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7603 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7604 "being available anymore");
7605 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7609 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7610 int freq_24, int freq_5, int freq_overall)
7612 struct p2p_data *p2p = wpa_s->global->p2p;
7615 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7619 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7622 struct p2p_data *p2p = wpa_s->global->p2p;
7627 if (hwaddr_aton(addr, peer))
7630 return p2p_unauthorize(p2p, peer);
7635 * wpas_p2p_disconnect - Disconnect from a P2P Group
7636 * @wpa_s: Pointer to wpa_supplicant data
7637 * Returns: 0 on success, -1 on failure
7639 * This can be used to disconnect from a group in which the local end is a P2P
7640 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7641 * virtual network interface was created for this group, that interface will be
7642 * removed. Otherwise, only the configured P2P group network will be removed
7643 * from the interface.
7645 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7651 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7656 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7660 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7663 ret = p2p_in_progress(wpa_s->global->p2p);
7666 * Check whether there is an ongoing WPS provisioning step (or
7667 * other parts of group formation) on another interface since
7668 * p2p_in_progress() does not report this to avoid issues for
7669 * scans during such provisioning step.
7671 if (wpa_s->global->p2p_group_formation &&
7672 wpa_s->global->p2p_group_formation != wpa_s) {
7673 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7674 "in group formation",
7675 wpa_s->global->p2p_group_formation->ifname);
7680 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7681 struct os_reltime now;
7682 os_get_reltime(&now);
7683 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7684 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7685 /* Wait for the first client has expired */
7686 wpa_s->global->p2p_go_wait_client.sec = 0;
7688 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7697 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7698 struct wpa_ssid *ssid)
7700 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7701 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7702 wpa_s->p2pdev, NULL) > 0) {
7704 * Remove the network by scheduling the group formation
7705 * timeout to happen immediately. The teardown code
7706 * needs to be scheduled to run asynch later so that we
7707 * don't delete data from under ourselves unexpectedly.
7708 * Calling wpas_p2p_group_formation_timeout directly
7709 * causes a series of crashes in WPS failure scenarios.
7711 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7712 "P2P group network getting removed");
7713 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7714 wpa_s->p2pdev, NULL);
7719 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7720 const u8 *addr, const u8 *ssid,
7726 for (s = wpa_s->conf->ssid; s; s = s->next) {
7727 if (s->disabled != 2)
7730 (ssid_len != s->ssid_len ||
7731 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7734 if (s->mode == WPAS_MODE_P2P_GO)
7738 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7739 return s; /* peer is GO in the persistent group */
7740 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7742 for (i = 0; i < s->num_p2p_clients; i++) {
7743 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7744 addr, ETH_ALEN) == 0)
7745 return s; /* peer is P2P client in persistent
7754 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7757 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7758 wpa_s->p2pdev, NULL) > 0) {
7760 * This can happen if WPS provisioning step is not terminated
7761 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7762 * peer was able to connect, there is no need to time out group
7763 * formation after this, though. In addition, this is used with
7764 * the initial connection wait on the GO as a separate formation
7765 * timeout and as such, expected to be hit after the initial WPS
7766 * provisioning step.
7768 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7770 if (!wpa_s->p2p_go_group_formation_completed &&
7771 !wpa_s->group_formation_reported) {
7773 * GO has not yet notified group formation success since
7774 * the WPS step was not completed cleanly. Do that
7775 * notification now since the P2P Client was able to
7776 * connect and as such, must have received the
7777 * credential from the WPS step.
7779 if (wpa_s->global->p2p)
7780 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7781 wpas_group_formation_completed(wpa_s, 1, 0);
7784 if (!wpa_s->p2p_go_group_formation_completed) {
7785 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7786 wpa_s->p2p_go_group_formation_completed = 1;
7787 wpa_s->global->p2p_group_formation = NULL;
7788 wpa_s->p2p_in_provisioning = 0;
7789 wpa_s->p2p_in_invitation = 0;
7791 wpa_s->global->p2p_go_wait_client.sec = 0;
7794 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7798 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7801 struct wpa_supplicant *group = wpa_s;
7804 if (wpa_s->global->p2p_group_formation)
7805 group = wpa_s->global->p2p_group_formation;
7806 wpa_s = wpa_s->global->p2p_init_wpa_s;
7807 offchannel_send_action_done(wpa_s);
7809 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7810 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7811 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7812 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7813 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7814 wpa_s->p2p_go_vht_center_freq2,
7815 wpa_s->p2p_persistent_id,
7816 wpa_s->p2p_pd_before_go_neg,
7819 wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7824 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7828 if (!wpa_s->p2p_fallback_to_go_neg ||
7829 wpa_s->p2p_in_provisioning <= 5)
7832 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7833 return 0; /* peer operating as a GO */
7835 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7836 "fallback to GO Negotiation");
7837 wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7838 "reason=GO-not-found");
7839 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7841 return res == 1 ? 2 : 1;
7845 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7847 struct wpa_supplicant *ifs;
7849 if (wpa_s->wpa_state > WPA_SCANNING) {
7850 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7851 "concurrent operation",
7852 wpa_s->conf->p2p_search_delay);
7853 return wpa_s->conf->p2p_search_delay;
7856 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7858 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7859 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7860 "delay due to concurrent operation on "
7862 wpa_s->conf->p2p_search_delay,
7864 return wpa_s->conf->p2p_search_delay;
7872 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7873 struct wpa_ssid *s, const u8 *addr,
7876 struct psk_list_entry *psk, *tmp;
7879 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7881 if ((iface_addr && !psk->p2p &&
7882 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7883 (!iface_addr && psk->p2p &&
7884 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7885 wpa_dbg(wpa_s, MSG_DEBUG,
7886 "P2P: Remove persistent group PSK list entry for "
7888 MAC2STR(psk->addr), psk->p2p);
7889 dl_list_del(&psk->list);
7899 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7900 const u8 *p2p_dev_addr,
7901 const u8 *psk, size_t psk_len)
7903 struct wpa_ssid *ssid = wpa_s->current_ssid;
7904 struct wpa_ssid *persistent;
7905 struct psk_list_entry *p, *last;
7907 if (psk_len != sizeof(p->psk))
7911 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7912 " p2p_dev_addr=" MACSTR,
7913 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7914 if (is_zero_ether_addr(p2p_dev_addr))
7915 p2p_dev_addr = NULL;
7917 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7921 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7922 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7923 /* To be added to persistent group once created */
7924 if (wpa_s->global->add_psk == NULL) {
7925 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7926 if (wpa_s->global->add_psk == NULL)
7929 p = wpa_s->global->add_psk;
7932 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7935 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7937 os_memcpy(p->psk, psk, psk_len);
7941 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7942 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7946 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
7949 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7953 p = os_zalloc(sizeof(*p));
7958 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7961 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7963 os_memcpy(p->psk, psk, psk_len);
7965 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7966 (last = dl_list_last(&persistent->psk_list,
7967 struct psk_list_entry, list))) {
7968 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7969 MACSTR " (p2p=%u) to make room for a new one",
7970 MAC2STR(last->addr), last->p2p);
7971 dl_list_del(&last->list);
7975 wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
7976 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7977 p2p_dev_addr == NULL);
7979 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7980 MACSTR, MAC2STR(p2p_dev_addr));
7982 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7985 dl_list_add(&persistent->psk_list, &p->list);
7987 if (wpa_s->p2pdev->conf->update_config &&
7988 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
7989 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7993 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7994 struct wpa_ssid *s, const u8 *addr,
7999 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
8000 if (res > 0 && wpa_s->conf->update_config &&
8001 wpa_config_write(wpa_s->confname, wpa_s->conf))
8002 wpa_dbg(wpa_s, MSG_DEBUG,
8003 "P2P: Failed to update configuration");
8007 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
8008 const u8 *peer, int iface_addr)
8010 struct hostapd_data *hapd;
8011 struct hostapd_wpa_psk *psk, *prev, *rem;
8012 struct sta_info *sta;
8014 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
8015 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
8018 /* Remove per-station PSK entry */
8019 hapd = wpa_s->ap_iface->bss[0];
8021 psk = hapd->conf->ssid.wpa_psk;
8023 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
8025 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
8026 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
8027 MACSTR " iface_addr=%d",
8028 MAC2STR(peer), iface_addr);
8030 prev->next = psk->next;
8032 hapd->conf->ssid.wpa_psk = psk->next;
8042 /* Disconnect from group */
8044 sta = ap_get_sta(hapd, peer);
8046 sta = ap_get_sta_p2p(hapd, peer);
8048 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8049 " (iface_addr=%d) from group",
8050 MAC2STR(peer), iface_addr);
8051 hostapd_drv_sta_deauth(hapd, sta->addr,
8052 WLAN_REASON_DEAUTH_LEAVING);
8053 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8058 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8062 struct wpa_supplicant *w;
8063 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
8065 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8067 /* Remove from any persistent group */
8068 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8069 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8072 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8073 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8076 /* Remove from any operating group */
8077 for (w = wpa_s->global->ifaces; w; w = w->next)
8078 wpas_p2p_remove_client_go(w, peer, iface_addr);
8082 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8084 struct wpa_supplicant *wpa_s = eloop_ctx;
8085 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8089 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8091 struct wpa_supplicant *wpa_s = eloop_ctx;
8093 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8094 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8098 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8099 struct wpa_ssid *ssid)
8101 struct wpa_supplicant *iface;
8103 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8104 if (!iface->current_ssid ||
8105 iface->current_ssid->frequency == freq ||
8106 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8107 !iface->current_ssid->p2p_group))
8110 /* Remove the connection with least priority */
8111 if (!wpas_is_p2p_prioritized(iface)) {
8112 /* STA connection has priority over existing
8113 * P2P connection, so remove the interface. */
8114 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8115 eloop_register_timeout(0, 0,
8116 wpas_p2p_group_freq_conflict,
8118 /* If connection in progress is P2P connection, do not
8119 * proceed for the connection. */
8125 /* P2P connection has priority, disable the STA network
8127 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8129 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8130 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8131 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8133 /* If P2P connection is in progress, continue
8146 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8148 struct wpa_ssid *ssid = wpa_s->current_ssid;
8150 if (ssid == NULL || !ssid->p2p_group)
8153 if (wpa_s->p2p_last_4way_hs_fail &&
8154 wpa_s->p2p_last_4way_hs_fail == ssid) {
8155 u8 go_dev_addr[ETH_ALEN];
8156 struct wpa_ssid *persistent;
8158 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8160 ssid->ssid_len) <= 0) {
8161 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8165 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8166 MACSTR, MAC2STR(go_dev_addr));
8167 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
8170 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8171 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8174 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
8175 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8178 wpa_s->p2p_last_4way_hs_fail = NULL;
8180 * Remove the group from a timeout to avoid issues with caller
8181 * continuing to use the interface if this is on a P2P group
8184 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8189 wpa_s->p2p_last_4way_hs_fail = ssid;
8194 #ifdef CONFIG_WPS_NFC
8196 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8204 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8208 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8209 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8216 wpabuf_put_be16(ret, wsc_len);
8218 wpabuf_put_buf(ret, wsc);
8219 wpabuf_put_be16(ret, wpabuf_len(p2p));
8220 wpabuf_put_buf(ret, p2p);
8224 wpa_hexdump_buf(MSG_DEBUG,
8225 "P2P: Generated NFC connection handover message", ret);
8229 tmp = ndef_build_p2p(ret);
8232 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8242 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8243 struct wpa_ssid **ssid, u8 *go_dev_addr)
8245 struct wpa_supplicant *iface;
8248 os_memset(go_dev_addr, 0, ETH_ALEN);
8251 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8252 if (iface->wpa_state < WPA_ASSOCIATING ||
8253 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8254 !iface->current_ssid->p2p_group ||
8255 iface->current_ssid->mode != WPAS_MODE_INFRA)
8258 *ssid = iface->current_ssid;
8260 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8261 return iface->assoc_freq;
8267 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8270 struct wpabuf *wsc, *p2p;
8271 struct wpa_ssid *ssid;
8272 u8 go_dev_addr[ETH_ALEN];
8273 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8275 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8276 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8280 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8281 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8282 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8283 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8287 if (cli_freq == 0) {
8288 wsc = wps_build_nfc_handover_req_p2p(
8289 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8292 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8293 go_dev_addr, ssid ? ssid->ssid : NULL,
8294 ssid ? ssid->ssid_len : 0);
8296 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8300 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8303 struct wpabuf *wsc, *p2p;
8304 struct wpa_ssid *ssid;
8305 u8 go_dev_addr[ETH_ALEN];
8306 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8308 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8311 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8312 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8313 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8316 if (cli_freq == 0) {
8317 wsc = wps_build_nfc_handover_sel_p2p(
8319 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8320 DEV_PW_NFC_CONNECTION_HANDOVER,
8321 wpa_s->conf->wps_nfc_dh_pubkey,
8322 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8325 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8326 go_dev_addr, ssid ? ssid->ssid : NULL,
8327 ssid ? ssid->ssid_len : 0);
8329 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8333 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8334 struct p2p_nfc_params *params)
8336 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8337 "connection handover (freq=%d)",
8340 if (params->go_freq && params->go_ssid_len) {
8341 wpa_s->p2p_wps_method = WPS_NFC;
8342 wpa_s->pending_join_wps_method = WPS_NFC;
8343 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8344 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8346 return wpas_p2p_join_start(wpa_s, params->go_freq,
8348 params->go_ssid_len);
8351 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8352 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8353 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8354 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8355 params->go_ssid_len ? params->go_ssid : NULL,
8356 params->go_ssid_len);
8360 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8361 struct p2p_nfc_params *params, int tag)
8363 int res, persistent;
8364 struct wpa_ssid *ssid;
8366 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8367 "connection handover");
8368 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8369 ssid = wpa_s->current_ssid;
8372 if (ssid->mode != WPAS_MODE_P2P_GO)
8374 if (wpa_s->ap_iface == NULL)
8378 if (wpa_s == NULL) {
8379 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8383 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
8384 DEV_PW_NFC_CONNECTION_HANDOVER &&
8385 !wpa_s->p2pdev->p2p_oob_dev_pw) {
8386 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8389 res = wpas_ap_wps_add_nfc_pw(
8390 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
8391 wpa_s->p2pdev->p2p_oob_dev_pw,
8392 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
8393 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
8398 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8402 if (!params->peer ||
8403 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8406 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8407 " to join", MAC2STR(params->peer->p2p_device_addr));
8409 wpa_s->global->p2p_invite_group = wpa_s;
8410 persistent = ssid->p2p_persistent_group &&
8411 wpas_p2p_get_persistent(wpa_s->p2pdev,
8412 params->peer->p2p_device_addr,
8413 ssid->ssid, ssid->ssid_len);
8414 wpa_s->p2pdev->pending_invite_ssid_id = -1;
8416 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8417 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8418 ssid->ssid, ssid->ssid_len, ssid->frequency,
8419 wpa_s->global->p2p_dev_addr, persistent, 0,
8420 wpa_s->p2pdev->p2p_oob_dev_pw_id);
8424 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8425 struct p2p_nfc_params *params,
8428 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8429 "connection handover");
8430 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8431 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8432 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8433 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8438 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8439 struct p2p_nfc_params *params,
8444 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8445 "connection handover");
8446 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8447 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8448 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8449 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8454 res = wpas_p2p_listen(wpa_s, 60);
8456 p2p_unauthorize(wpa_s->global->p2p,
8457 params->peer->p2p_device_addr);
8464 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8465 const struct wpabuf *data,
8466 int sel, int tag, int forced_freq)
8468 const u8 *pos, *end;
8470 struct p2p_nfc_params params;
8473 os_memset(¶ms, 0, sizeof(params));
8476 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8478 pos = wpabuf_head(data);
8479 end = pos + wpabuf_len(data);
8481 if (end - pos < 2) {
8482 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8486 len = WPA_GET_BE16(pos);
8488 if (len > end - pos) {
8489 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8493 params.wsc_attr = pos;
8494 params.wsc_len = len;
8497 if (end - pos < 2) {
8498 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8502 len = WPA_GET_BE16(pos);
8504 if (len > end - pos) {
8505 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8509 params.p2p_attr = pos;
8510 params.p2p_len = len;
8513 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8514 params.wsc_attr, params.wsc_len);
8515 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8516 params.p2p_attr, params.p2p_len);
8518 wpa_hexdump(MSG_DEBUG,
8519 "P2P: Ignored extra data after P2P attributes",
8523 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8527 if (params.next_step == NO_ACTION)
8530 if (params.next_step == BOTH_GO) {
8531 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8532 MAC2STR(params.peer->p2p_device_addr));
8536 if (params.next_step == PEER_CLIENT) {
8537 if (!is_zero_ether_addr(params.go_dev_addr)) {
8538 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8539 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8541 MAC2STR(params.peer->p2p_device_addr),
8543 MAC2STR(params.go_dev_addr),
8544 wpa_ssid_txt(params.go_ssid,
8545 params.go_ssid_len));
8547 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8548 "peer=" MACSTR " freq=%d",
8549 MAC2STR(params.peer->p2p_device_addr),
8555 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8556 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8557 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8561 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8562 wpa_s->p2p_oob_dev_pw = NULL;
8564 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8565 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8570 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8571 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8572 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8573 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8574 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8575 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8576 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8580 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8581 "peer OOB Device Password Id %u", id);
8584 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8585 "Device Password Id %u", id);
8586 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8587 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8588 params.oob_dev_pw_len -
8589 WPS_OOB_PUBKEY_HASH_LEN - 2);
8590 wpa_s->p2p_oob_dev_pw_id = id;
8591 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8592 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8593 params.oob_dev_pw_len -
8594 WPS_OOB_PUBKEY_HASH_LEN - 2);
8595 if (wpa_s->p2p_oob_dev_pw == NULL)
8598 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8599 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8600 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8603 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8604 "without Device Password");
8605 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8608 switch (params.next_step) {
8612 /* already covered above */
8615 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8617 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8619 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8621 /* TODO: use own OOB Dev Pw */
8622 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8629 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8630 const struct wpabuf *data, int forced_freq)
8632 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8635 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8639 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8640 const struct wpabuf *req,
8641 const struct wpabuf *sel, int forced_freq)
8646 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8649 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8651 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8652 wpabuf_head(req), wpabuf_len(req));
8653 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8654 wpabuf_head(sel), wpabuf_len(sel));
8656 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8657 tmp = ndef_parse_p2p(init ? sel : req);
8659 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8663 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8671 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8674 int go_intent = wpa_s->conf->p2p_go_intent;
8675 struct wpa_supplicant *iface;
8677 if (wpa_s->global->p2p == NULL)
8681 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8682 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8684 if (!iface->ap_iface)
8686 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8688 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8690 if (wpa_s->p2p_nfc_tag_enabled)
8691 wpas_p2p_remove_pending_group_interface(wpa_s);
8692 wpa_s->p2p_nfc_tag_enabled = 0;
8696 if (wpa_s->global->p2p_disabled)
8699 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8700 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8701 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8702 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8703 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8704 "to allow static handover cases");
8708 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8710 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8711 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8712 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8713 if (wpa_s->p2p_oob_dev_pw == NULL)
8715 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8717 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8718 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8720 * P2P Group Interface present and the command came on group
8721 * interface, so enable the token for the current interface.
8723 wpa_s->create_p2p_iface = 0;
8725 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8728 if (wpa_s->create_p2p_iface) {
8729 enum wpa_driver_if_type iftype;
8730 /* Prepare to add a new interface for the group */
8731 iftype = WPA_IF_P2P_GROUP;
8732 if (go_intent == 15)
8733 iftype = WPA_IF_P2P_GO;
8734 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8735 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8736 "interface for the group");
8740 if_addr = wpa_s->pending_interface_addr;
8741 } else if (wpa_s->p2p_mgmt)
8742 if_addr = wpa_s->parent->own_addr;
8744 if_addr = wpa_s->own_addr;
8746 wpa_s->p2p_nfc_tag_enabled = enabled;
8748 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8749 struct hostapd_data *hapd;
8750 if (iface->ap_iface == NULL)
8752 hapd = iface->ap_iface->bss[0];
8753 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8754 hapd->conf->wps_nfc_dh_pubkey =
8755 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8756 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8757 hapd->conf->wps_nfc_dh_privkey =
8758 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8759 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8760 hapd->conf->wps_nfc_dev_pw =
8761 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8762 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8764 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8765 wpa_dbg(iface, MSG_DEBUG,
8766 "P2P: Failed to enable NFC Tag for GO");
8769 p2p_set_authorized_oob_dev_pw_id(
8770 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8776 #endif /* CONFIG_WPS_NFC */
8779 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8780 struct wpa_used_freq_data *freqs,
8783 u8 curr_chan, cand, chan;
8787 * If possible, optimize the Listen channel to be a channel that is
8788 * already used by one of the other interfaces.
8790 if (!wpa_s->conf->p2p_optimize_listen_chan)
8793 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8796 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8797 for (i = 0, cand = 0; i < num; i++) {
8798 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8799 if (curr_chan == chan) {
8804 if (chan == 1 || chan == 6 || chan == 11)
8809 wpa_dbg(wpa_s, MSG_DEBUG,
8810 "P2P: Update Listen channel to %u based on operating channel",
8812 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8817 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8819 struct hostapd_config *conf;
8820 struct p2p_go_neg_results params;
8821 struct csa_settings csa_settings;
8822 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8823 int old_freq = current_ssid->frequency;
8826 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8827 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8832 * TODO: This function may not always work correctly. For example,
8833 * when we have a running GO and a BSS on a DFS channel.
8835 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8836 wpa_dbg(wpa_s, MSG_DEBUG,
8837 "P2P CSA: Failed to select new frequency for GO");
8841 if (current_ssid->frequency == params.freq) {
8842 wpa_dbg(wpa_s, MSG_DEBUG,
8843 "P2P CSA: Selected same frequency - not moving GO");
8847 conf = hostapd_config_defaults();
8849 wpa_dbg(wpa_s, MSG_DEBUG,
8850 "P2P CSA: Failed to allocate default config");
8854 current_ssid->frequency = params.freq;
8855 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8856 wpa_dbg(wpa_s, MSG_DEBUG,
8857 "P2P CSA: Failed to create new GO config");
8862 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8863 wpa_dbg(wpa_s, MSG_DEBUG,
8864 "P2P CSA: CSA to a different band is not supported");
8869 os_memset(&csa_settings, 0, sizeof(csa_settings));
8870 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8871 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8872 csa_settings.freq_params.freq = params.freq;
8873 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8874 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8875 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8877 if (conf->ieee80211ac) {
8878 int freq1 = 0, freq2 = 0;
8881 if (ieee80211_freq_to_channel_ext(params.freq,
8882 conf->secondary_channel,
8883 conf->vht_oper_chwidth,
8885 NUM_HOSTAPD_MODES) {
8886 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8891 if (conf->vht_oper_centr_freq_seg0_idx)
8892 freq1 = ieee80211_chan_to_freq(
8894 conf->vht_oper_centr_freq_seg0_idx);
8896 if (conf->vht_oper_centr_freq_seg1_idx)
8897 freq2 = ieee80211_chan_to_freq(
8899 conf->vht_oper_centr_freq_seg1_idx);
8901 if (freq1 < 0 || freq2 < 0) {
8902 wpa_dbg(wpa_s, MSG_DEBUG,
8903 "P2P CSA: Selected invalid VHT center freqs");
8908 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8909 csa_settings.freq_params.center_freq1 = freq1;
8910 csa_settings.freq_params.center_freq2 = freq2;
8912 switch (conf->vht_oper_chwidth) {
8913 case VHT_CHANWIDTH_80MHZ:
8914 case VHT_CHANWIDTH_80P80MHZ:
8915 csa_settings.freq_params.bandwidth = 80;
8917 case VHT_CHANWIDTH_160MHZ:
8918 csa_settings.freq_params.bandwidth = 160;
8923 ret = ap_switch_channel(wpa_s, &csa_settings);
8925 current_ssid->frequency = old_freq;
8926 hostapd_config_free(conf);
8931 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8933 struct p2p_go_neg_results params;
8934 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8936 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8938 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8939 current_ssid->frequency);
8941 /* Stop the AP functionality */
8942 /* TODO: Should do this in a way that does not indicated to possible
8943 * P2P Clients in the group that the group is terminated. */
8944 wpa_supplicant_ap_deinit(wpa_s);
8946 /* Reselect the GO frequency */
8947 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8948 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8949 wpas_p2p_group_delete(wpa_s,
8950 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8953 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8957 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8958 wpa_printf(MSG_DEBUG,
8959 "P2P: Selected freq (%u MHz) is not valid for P2P",
8961 wpas_p2p_group_delete(wpa_s,
8962 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8966 /* Update the frequency */
8967 current_ssid->frequency = params.freq;
8968 wpa_s->connect_without_scan = current_ssid;
8969 wpa_s->reassociate = 1;
8970 wpa_s->disconnected = 0;
8971 wpa_supplicant_req_scan(wpa_s, 0, 0);
8975 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8977 struct wpa_supplicant *wpa_s = eloop_ctx;
8979 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8982 wpas_p2p_go_update_common_freqs(wpa_s);
8984 /* Do not move GO in the middle of a CSA */
8985 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8986 wpa_printf(MSG_DEBUG,
8987 "P2P: CSA is in progress - not moving GO");
8992 * First, try a channel switch flow. If it is not supported or fails,
8993 * take down the GO and bring it up again.
8995 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8996 wpas_p2p_move_go_no_csa(wpa_s);
9000 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
9002 struct wpa_supplicant *wpa_s = eloop_ctx;
9003 struct wpa_used_freq_data *freqs = NULL;
9004 unsigned int num = wpa_s->num_multichan_concurrent;
9006 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
9010 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
9012 /* Previous attempt to move a GO was not possible -- try again. */
9013 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
9014 WPAS_P2P_CHANNEL_UPDATE_ANY);
9021 * Consider moving a GO from its currently used frequency:
9022 * 1. It is possible that due to regulatory consideration the frequency
9023 * can no longer be used and there is a need to evacuate the GO.
9024 * 2. It is possible that due to MCC considerations, it would be preferable
9025 * to move the GO to a channel that is currently used by some other
9026 * station interface.
9028 * In case a frequency that became invalid is once again valid, cancel a
9029 * previously initiated GO frequency change.
9031 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
9032 struct wpa_used_freq_data *freqs,
9035 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
9036 unsigned int timeout;
9039 wpas_p2p_go_update_common_freqs(wpa_s);
9041 freq = wpa_s->current_ssid->frequency;
9042 for (i = 0, invalid_freq = 0; i < num; i++) {
9043 if (freqs[i].freq == freq) {
9044 flags = freqs[i].flags;
9046 /* The channel is invalid, must change it */
9047 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
9048 wpa_dbg(wpa_s, MSG_DEBUG,
9049 "P2P: Freq=%d MHz no longer valid for GO",
9053 } else if (freqs[i].flags == 0) {
9054 /* Freq is not used by any other station interface */
9056 } else if (!p2p_supported_freq(wpa_s->global->p2p,
9058 /* Freq is not valid for P2P use cases */
9060 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9061 P2P_GO_FREQ_MOVE_SCM) {
9063 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9064 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
9065 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9067 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
9068 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9069 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9070 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9072 } else if ((wpa_s->drv_flags &
9073 WPA_DRIVER_FLAGS_AP_CSA) &&
9074 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9078 * We do not support CSA between bands, so move
9079 * GO only within the same band.
9081 if (wpa_s->ap_iface->current_mode->mode ==
9082 ieee80211_freq_to_chan(freqs[i].freq,
9089 wpa_dbg(wpa_s, MSG_DEBUG,
9090 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9091 invalid_freq, policy_move, flags);
9094 * The channel is valid, or we are going to have a policy move, so
9097 if (!invalid_freq || policy_move) {
9098 wpa_dbg(wpa_s, MSG_DEBUG,
9099 "P2P: Cancel a GO move from freq=%d MHz", freq);
9100 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9102 if (wpas_p2p_in_progress(wpa_s)) {
9103 wpa_dbg(wpa_s, MSG_DEBUG,
9104 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9105 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9107 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9108 wpas_p2p_reconsider_moving_go,
9114 if (!invalid_freq && (!policy_move || flags != 0)) {
9115 wpa_dbg(wpa_s, MSG_DEBUG,
9116 "P2P: Not initiating a GO frequency change");
9121 * Do not consider moving GO if it is in the middle of a CSA. When the
9122 * CSA is finished this flow should be retriggered.
9124 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9125 wpa_dbg(wpa_s, MSG_DEBUG,
9126 "P2P: Not initiating a GO frequency change - CSA is in progress");
9130 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9131 timeout = P2P_GO_FREQ_CHANGE_TIME;
9135 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9137 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9138 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9142 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9143 struct wpa_used_freq_data *freqs,
9145 enum wpas_p2p_channel_update_trig trig)
9147 struct wpa_supplicant *ifs;
9149 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9153 * Travers all the radio interfaces, and for each GO interface, check
9154 * if there is a need to move the GO from the frequency it is using,
9155 * or in case the frequency is valid again, cancel the evacuation flow.
9157 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9159 if (ifs->current_ssid == NULL ||
9160 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9164 * The GO was just started or completed channel switch, no need
9168 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9169 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9170 wpa_dbg(wpa_s, MSG_DEBUG,
9171 "P2P: GO move - schedule re-consideration");
9172 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9173 wpas_p2p_reconsider_moving_go,
9178 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9183 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9185 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9188 wpas_p2p_update_channel_list(wpa_s,
9189 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9193 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9195 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9196 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9197 "the management interface is being removed");
9198 wpas_p2p_deinit_global(wpa_s->global);
9203 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9205 if (wpa_s->ap_iface->bss)
9206 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9207 wpas_p2p_group_deinit(wpa_s);