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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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->pairwise_cipher = WPA_CIPHER_CCMP;
1139 if (ssid->passphrase) {
1140 os_free(s->passphrase);
1141 s->passphrase = os_strdup(ssid->passphrase);
1143 if (ssid->psk_set) {
1145 os_memcpy(s->psk, ssid->psk, 32);
1147 if (s->passphrase && !s->psk_set)
1148 wpa_config_update_psk(s);
1149 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1151 s->ssid = os_malloc(ssid->ssid_len);
1154 s->ssid_len = ssid->ssid_len;
1155 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1157 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1158 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1159 wpa_s->global->add_psk = NULL;
1163 if (changed && wpa_s->conf->update_config &&
1164 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1165 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1172 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1175 struct wpa_ssid *ssid, *s;
1179 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1181 ssid = wpa_s->current_ssid;
1182 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1183 !ssid->p2p_persistent_group)
1186 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1187 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1190 if (s->ssid_len == ssid->ssid_len &&
1191 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1198 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1199 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1203 if (i == s->num_p2p_clients - 1)
1204 return; /* already the most recent entry */
1206 /* move the entry to mark it most recent */
1207 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1208 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1209 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1210 os_memcpy(s->p2p_client_list +
1211 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1213 os_memset(s->p2p_client_list +
1214 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1220 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1221 n = os_realloc_array(s->p2p_client_list,
1222 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1225 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1227 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1229 s->p2p_client_list = n;
1230 s->num_p2p_clients++;
1231 } else if (!found && s->p2p_client_list) {
1232 /* Not enough room for an additional entry - drop the oldest
1234 os_memmove(s->p2p_client_list,
1235 s->p2p_client_list + 2 * ETH_ALEN,
1236 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1237 os_memcpy(s->p2p_client_list +
1238 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1240 os_memset(s->p2p_client_list +
1241 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1245 if (p2p_wpa_s->conf->update_config &&
1246 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1247 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1251 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1252 int go, struct wpa_ssid *ssid, int freq,
1253 const u8 *psk, const char *passphrase,
1254 const u8 *go_dev_addr, int persistent,
1257 const char *ssid_txt;
1261 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1266 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1270 if (passphrase && passphrase[0] == '\0')
1274 * Include PSK/passphrase only in the control interface message and
1275 * leave it out from the debug log entry.
1277 wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
1278 P2P_EVENT_GROUP_STARTED
1279 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1281 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1282 psk ? " psk=" : "", psk_txt,
1283 passphrase ? " passphrase=\"" : "",
1284 passphrase ? passphrase : "",
1285 passphrase ? "\"" : "",
1286 MAC2STR(go_dev_addr),
1287 persistent ? " [PERSISTENT]" : "", extra);
1288 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1289 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1290 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1291 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1296 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1297 int success, int already_deleted)
1299 struct wpa_ssid *ssid;
1302 u8 go_dev_addr[ETH_ALEN];
1303 int network_id = -1;
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 network_id = wpas_p2p_store_persistent_group(wpa_s->p2pdev,
1381 os_free(wpa_s->global->add_psk);
1382 wpa_s->global->add_psk = NULL;
1384 if (network_id < 0 && ssid)
1385 network_id = ssid->id;
1387 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1388 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1393 struct send_action_work {
1399 unsigned int wait_time;
1404 static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1406 struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1408 wpa_printf(MSG_DEBUG,
1409 "P2P: Free Action frame radio work @%p (freq=%u dst="
1410 MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1411 wpa_s->p2p_send_action_work, awork->freq,
1412 MAC2STR(awork->dst), MAC2STR(awork->src),
1413 MAC2STR(awork->bssid), awork->wait_time);
1414 wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1415 awork->buf, awork->len);
1417 wpa_s->p2p_send_action_work->ctx = NULL;
1418 radio_work_done(wpa_s->p2p_send_action_work);
1419 wpa_s->p2p_send_action_work = NULL;
1423 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1426 struct wpa_supplicant *wpa_s = eloop_ctx;
1428 if (!wpa_s->p2p_send_action_work)
1431 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1432 wpas_p2p_free_send_action_work(wpa_s);
1436 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1438 if (wpa_s->p2p_send_action_work) {
1439 struct send_action_work *awork;
1441 awork = wpa_s->p2p_send_action_work->ctx;
1442 wpa_printf(MSG_DEBUG,
1443 "P2P: Clear Action TX work @%p (wait_time=%u)",
1444 wpa_s->p2p_send_action_work, awork->wait_time);
1445 if (awork->wait_time == 0) {
1446 wpas_p2p_free_send_action_work(wpa_s);
1449 * In theory, this should not be needed, but number of
1450 * places in the P2P code is still using non-zero wait
1451 * time for the last Action frame in the sequence and
1452 * some of these do not call send_action_done().
1454 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1456 eloop_register_timeout(
1457 0, awork->wait_time * 1000,
1458 wpas_p2p_send_action_work_timeout,
1465 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1467 const u8 *dst, const u8 *src,
1469 const u8 *data, size_t data_len,
1470 enum offchannel_send_action_result
1473 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1475 wpas_p2p_action_tx_clear(wpa_s);
1477 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1481 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1482 res = P2P_SEND_ACTION_SUCCESS;
1484 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1485 res = P2P_SEND_ACTION_NO_ACK;
1487 case OFFCHANNEL_SEND_ACTION_FAILED:
1488 res = P2P_SEND_ACTION_FAILED;
1492 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1494 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1495 wpa_s->pending_pd_before_join &&
1496 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1497 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1498 wpa_s->p2p_fallback_to_go_neg) {
1499 wpa_s->pending_pd_before_join = 0;
1500 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1501 "during p2p_connect-auto");
1502 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1503 P2P_EVENT_FALLBACK_TO_GO_NEG
1504 "reason=no-ACK-to-PD-Req");
1505 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1511 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1513 struct wpa_supplicant *wpa_s = work->wpa_s;
1514 struct send_action_work *awork = work->ctx;
1517 if (work->started) {
1518 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1520 wpa_s->p2p_send_action_work = NULL;
1521 offchannel_send_action_done(wpa_s);
1527 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1528 awork->bssid, awork->buf, awork->len,
1530 wpas_p2p_send_action_tx_status, 1) < 0) {
1532 radio_work_done(work);
1535 wpa_s->p2p_send_action_work = work;
1539 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1540 unsigned int freq, const u8 *dst,
1541 const u8 *src, const u8 *bssid, const u8 *buf,
1542 size_t len, unsigned int wait_time)
1544 struct send_action_work *awork;
1546 if (wpa_s->p2p_send_action_work) {
1547 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1551 awork = os_zalloc(sizeof(*awork) + len);
1556 os_memcpy(awork->dst, dst, ETH_ALEN);
1557 os_memcpy(awork->src, src, ETH_ALEN);
1558 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1560 awork->wait_time = wait_time;
1561 os_memcpy(awork->buf, buf, len);
1563 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1564 wpas_send_action_cb, awork) < 0) {
1573 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1574 const u8 *src, const u8 *bssid, const u8 *buf,
1575 size_t len, unsigned int wait_time)
1577 struct wpa_supplicant *wpa_s = ctx;
1578 int listen_freq = -1, send_freq = -1;
1580 if (wpa_s->p2p_listen_work)
1581 listen_freq = wpa_s->p2p_listen_work->freq;
1582 if (wpa_s->p2p_send_action_work)
1583 send_freq = wpa_s->p2p_send_action_work->freq;
1584 if (listen_freq != (int) freq && send_freq != (int) freq) {
1585 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1586 listen_freq, send_freq);
1587 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1591 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1592 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1594 wpas_p2p_send_action_tx_status, 1);
1598 static void wpas_send_action_done(void *ctx)
1600 struct wpa_supplicant *wpa_s = ctx;
1602 if (wpa_s->p2p_send_action_work) {
1603 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1605 os_free(wpa_s->p2p_send_action_work->ctx);
1606 radio_work_done(wpa_s->p2p_send_action_work);
1607 wpa_s->p2p_send_action_work = NULL;
1610 offchannel_send_action_done(wpa_s);
1614 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1615 struct p2p_go_neg_results *params)
1617 if (wpa_s->go_params == NULL) {
1618 wpa_s->go_params = os_malloc(sizeof(*params));
1619 if (wpa_s->go_params == NULL)
1622 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1627 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1628 struct p2p_go_neg_results *res)
1630 wpa_s->group_formation_reported = 0;
1631 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1632 " dev_addr " MACSTR " wps_method %d",
1633 MAC2STR(res->peer_interface_addr),
1634 MAC2STR(res->peer_device_addr), res->wps_method);
1635 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1636 res->ssid, res->ssid_len);
1637 wpa_supplicant_ap_deinit(wpa_s);
1638 wpas_copy_go_neg_results(wpa_s, res);
1639 if (res->wps_method == WPS_PBC) {
1640 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1641 #ifdef CONFIG_WPS_NFC
1642 } else if (res->wps_method == WPS_NFC) {
1643 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1644 res->peer_interface_addr,
1645 wpa_s->p2pdev->p2p_oob_dev_pw,
1646 wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
1647 wpa_s->p2pdev->p2p_oob_dev_pw_id ==
1648 DEV_PW_NFC_CONNECTION_HANDOVER ?
1649 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
1652 #endif /* CONFIG_WPS_NFC */
1654 u16 dev_pw_id = DEV_PW_DEFAULT;
1655 if (wpa_s->p2p_wps_method == WPS_P2PS)
1656 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1657 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1658 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1659 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1660 wpa_s->p2p_pin, 1, dev_pw_id);
1665 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1666 struct wpa_ssid *ssid)
1668 struct wpa_ssid *persistent;
1669 struct psk_list_entry *psk;
1670 struct hostapd_data *hapd;
1672 if (!wpa_s->ap_iface)
1675 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
1677 if (persistent == NULL)
1680 hapd = wpa_s->ap_iface->bss[0];
1682 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1684 struct hostapd_wpa_psk *hpsk;
1686 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1688 MAC2STR(psk->addr), psk->p2p);
1689 hpsk = os_zalloc(sizeof(*hpsk));
1692 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1694 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1696 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1697 hpsk->next = hapd->conf->ssid.wpa_psk;
1698 hapd->conf->ssid.wpa_psk = hpsk;
1703 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1707 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1708 wpa_s->p2p_group_common_freqs_num);
1710 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1711 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1712 i, wpa_s->p2p_group_common_freqs[i]);
1716 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1717 struct p2p_go_neg_results *params)
1719 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1721 wpa_s->p2p_group_common_freqs_num = 0;
1722 os_free(wpa_s->p2p_group_common_freqs);
1723 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1724 if (!wpa_s->p2p_group_common_freqs)
1727 for (i = 0; i < len; i++) {
1728 if (!wpa_s->go_params->freq_list[i])
1730 wpa_s->p2p_group_common_freqs[i] =
1731 wpa_s->go_params->freq_list[i];
1733 wpa_s->p2p_group_common_freqs_num = i;
1737 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1739 #ifndef CONFIG_NO_CONFIG_WRITE
1740 if (wpa_s->p2pdev->conf->update_config &&
1741 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
1742 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1743 #endif /* CONFIG_NO_CONFIG_WRITE */
1747 static void p2p_go_configured(void *ctx, void *data)
1749 struct wpa_supplicant *wpa_s = ctx;
1750 struct p2p_go_neg_results *params = data;
1751 struct wpa_ssid *ssid;
1752 int network_id = -1;
1754 wpa_s->ap_configured_cb = NULL;
1755 wpa_s->ap_configured_cb_ctx = NULL;
1756 wpa_s->ap_configured_cb_data = NULL;
1757 if (!wpa_s->go_params) {
1758 wpa_printf(MSG_ERROR,
1759 "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1763 p2p_go_save_group_common_freqs(wpa_s, params);
1764 p2p_go_dump_common_freqs(wpa_s);
1766 ssid = wpa_s->current_ssid;
1767 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1768 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1769 if (wpa_s->global->p2p_group_formation == wpa_s)
1770 wpa_s->global->p2p_group_formation = NULL;
1771 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1772 params->passphrase[0] == '\0' ?
1775 wpa_s->global->p2p_dev_addr,
1776 params->persistent_group, "");
1777 wpa_s->group_formation_reported = 1;
1779 if (wpa_s->p2pdev->p2ps_method_config_any) {
1780 if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
1781 wpa_dbg(wpa_s, MSG_DEBUG,
1782 "P2PS: Setting default PIN for ANY");
1783 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1784 "12345670", NULL, 0,
1787 wpa_dbg(wpa_s, MSG_DEBUG,
1788 "P2PS: Setting default PIN for " MACSTR,
1789 MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
1790 wpa_supplicant_ap_wps_pin(
1791 wpa_s, wpa_s->p2pdev->p2ps_join_addr,
1792 "12345670", NULL, 0, 0);
1794 wpa_s->p2pdev->p2ps_method_config_any = 0;
1797 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1798 if (params->persistent_group) {
1799 network_id = wpas_p2p_store_persistent_group(
1800 wpa_s->p2pdev, ssid,
1801 wpa_s->global->p2p_dev_addr);
1802 wpas_p2p_add_psk_list(wpa_s, ssid);
1805 network_id = ssid->id;
1806 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1807 wpas_p2p_cross_connect_setup(wpa_s);
1808 wpas_p2p_set_group_idle_timeout(wpa_s);
1810 if (wpa_s->p2p_first_connection_timeout) {
1811 wpa_dbg(wpa_s, MSG_DEBUG,
1812 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1813 wpa_s->p2p_first_connection_timeout);
1814 wpa_s->p2p_go_group_formation_completed = 0;
1815 wpa_s->global->p2p_group_formation = wpa_s;
1816 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1817 wpa_s->p2pdev, NULL);
1818 eloop_register_timeout(
1819 wpa_s->p2p_first_connection_timeout, 0,
1820 wpas_p2p_group_formation_timeout,
1821 wpa_s->p2pdev, NULL);
1827 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1828 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1829 params->peer_interface_addr)) {
1830 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1834 if (params->wps_method == WPS_PBC) {
1835 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1836 params->peer_device_addr);
1837 #ifdef CONFIG_WPS_NFC
1838 } else if (params->wps_method == WPS_NFC) {
1839 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
1840 DEV_PW_NFC_CONNECTION_HANDOVER &&
1841 !wpa_s->p2pdev->p2p_oob_dev_pw) {
1842 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1845 wpas_ap_wps_add_nfc_pw(
1846 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
1847 wpa_s->p2pdev->p2p_oob_dev_pw,
1848 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
1849 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
1850 #endif /* CONFIG_WPS_NFC */
1851 } else if (wpa_s->p2p_pin[0])
1852 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1853 wpa_s->p2p_pin, NULL, 0, 0);
1854 os_free(wpa_s->go_params);
1855 wpa_s->go_params = NULL;
1859 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1860 struct p2p_go_neg_results *params,
1861 int group_formation)
1863 struct wpa_ssid *ssid;
1865 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1866 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1867 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1872 ssid = wpa_config_add_network(wpa_s->conf);
1874 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1878 wpa_s->show_group_started = 0;
1879 wpa_s->p2p_go_group_formation_completed = 0;
1880 wpa_s->group_formation_reported = 0;
1881 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1883 wpa_config_set_network_defaults(ssid);
1884 ssid->temporary = 1;
1885 ssid->p2p_group = 1;
1886 ssid->p2p_persistent_group = params->persistent_group;
1887 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1889 ssid->frequency = params->freq;
1890 ssid->ht40 = params->ht40;
1891 ssid->vht = params->vht;
1892 ssid->max_oper_chwidth = params->max_oper_chwidth;
1893 ssid->vht_center_freq2 = params->vht_center_freq2;
1894 ssid->ssid = os_zalloc(params->ssid_len + 1);
1896 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1897 ssid->ssid_len = params->ssid_len;
1899 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1900 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1901 ssid->proto = WPA_PROTO_RSN;
1902 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1903 ssid->group_cipher = WPA_CIPHER_CCMP;
1904 if (params->freq > 56160) {
1906 * Enable GCMP instead of CCMP as pairwise_cipher and
1907 * group_cipher in 60 GHz.
1909 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1910 ssid->group_cipher = WPA_CIPHER_GCMP;
1911 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1914 if (os_strlen(params->passphrase) > 0) {
1915 ssid->passphrase = os_strdup(params->passphrase);
1916 if (ssid->passphrase == NULL) {
1917 wpa_msg_global(wpa_s, MSG_ERROR,
1918 "P2P: Failed to copy passphrase for GO");
1919 wpa_config_remove_network(wpa_s->conf, ssid->id);
1923 ssid->passphrase = NULL;
1924 ssid->psk_set = params->psk_set;
1926 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1927 else if (ssid->passphrase)
1928 wpa_config_update_psk(ssid);
1929 ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
1931 wpa_s->ap_configured_cb = p2p_go_configured;
1932 wpa_s->ap_configured_cb_ctx = wpa_s;
1933 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1934 wpa_s->scan_req = NORMAL_SCAN_REQ;
1935 wpa_s->connect_without_scan = ssid;
1936 wpa_s->reassociate = 1;
1937 wpa_s->disconnected = 0;
1938 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1940 wpa_supplicant_req_scan(wpa_s, 0, 0);
1944 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1945 const struct wpa_supplicant *src)
1947 struct wpa_config *d;
1948 const struct wpa_config *s;
1953 #define C(n) if (s->n) d->n = os_strdup(s->n)
1962 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1963 os_memcpy(d->sec_device_type, s->sec_device_type,
1964 sizeof(d->sec_device_type));
1965 d->num_sec_device_types = s->num_sec_device_types;
1967 d->p2p_group_idle = s->p2p_group_idle;
1968 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1969 d->p2p_intra_bss = s->p2p_intra_bss;
1970 d->persistent_reconnect = s->persistent_reconnect;
1971 d->max_num_sta = s->max_num_sta;
1972 d->pbc_in_m1 = s->pbc_in_m1;
1973 d->ignore_old_scan_res = s->ignore_old_scan_res;
1974 d->beacon_int = s->beacon_int;
1975 d->dtim_period = s->dtim_period;
1976 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1977 d->disassoc_low_ack = s->disassoc_low_ack;
1978 d->disable_scan_offload = s->disable_scan_offload;
1979 d->passive_scan = s->passive_scan;
1981 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1982 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1983 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1985 d->p2p_cli_probe = s->p2p_cli_probe;
1989 static void wpas_p2p_clone_config_dh(struct wpa_supplicant *dst,
1990 const struct wpa_supplicant *src)
1992 struct wpa_config *d;
1993 const struct wpa_config *s;
1998 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey &&
1999 !d->wps_nfc_dh_privkey && !d->wps_nfc_dh_pubkey) {
2000 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
2001 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
2006 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
2007 char *ifname, size_t len)
2009 char *ifname_ptr = wpa_s->ifname;
2011 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
2012 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
2013 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
2016 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
2017 if (os_strlen(ifname) >= IFNAMSIZ &&
2018 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
2021 /* Try to avoid going over the IFNAMSIZ length limit */
2022 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2023 if (os_snprintf_error(len, res) && len)
2024 ifname[len - 1] = '\0';
2029 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2030 enum wpa_driver_if_type type)
2032 char ifname[120], force_ifname[120];
2034 if (wpa_s->pending_interface_name[0]) {
2035 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2036 "- skip creation of a new one");
2037 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2038 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2039 "unknown?! ifname='%s'",
2040 wpa_s->pending_interface_name);
2046 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2047 force_ifname[0] = '\0';
2049 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2051 wpa_s->p2p_group_idx++;
2053 wpa_s->pending_interface_type = type;
2054 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2055 wpa_s->pending_interface_addr, NULL) < 0) {
2056 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2061 if (force_ifname[0]) {
2062 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2064 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2065 sizeof(wpa_s->pending_interface_name));
2067 os_strlcpy(wpa_s->pending_interface_name, ifname,
2068 sizeof(wpa_s->pending_interface_name));
2069 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2070 MACSTR, wpa_s->pending_interface_name,
2071 MAC2STR(wpa_s->pending_interface_addr));
2077 static void wpas_p2p_remove_pending_group_interface(
2078 struct wpa_supplicant *wpa_s)
2080 if (!wpa_s->pending_interface_name[0] ||
2081 is_zero_ether_addr(wpa_s->pending_interface_addr))
2082 return; /* No pending virtual interface */
2084 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2085 wpa_s->pending_interface_name);
2086 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2087 wpa_s->pending_interface_name);
2088 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2089 wpa_s->pending_interface_name[0] = '\0';
2090 wpa_s->global->pending_group_iface_for_p2ps = 0;
2094 static struct wpa_supplicant *
2095 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2097 struct wpa_interface iface;
2098 struct wpa_supplicant *group_wpa_s;
2100 if (!wpa_s->pending_interface_name[0]) {
2101 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2102 if (!wpas_p2p_create_iface(wpa_s))
2105 * Something has forced us to remove the pending interface; try
2106 * to create a new one and hope for the best that we will get
2107 * the same local address.
2109 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2110 WPA_IF_P2P_CLIENT) < 0)
2114 os_memset(&iface, 0, sizeof(iface));
2115 iface.ifname = wpa_s->pending_interface_name;
2116 iface.driver = wpa_s->driver->name;
2117 if (wpa_s->conf->ctrl_interface == NULL &&
2118 wpa_s->parent != wpa_s &&
2120 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2121 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2123 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2124 iface.driver_param = wpa_s->conf->driver_param;
2125 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2126 if (group_wpa_s == NULL) {
2127 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2128 "wpa_supplicant interface");
2131 wpa_s->pending_interface_name[0] = '\0';
2132 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2133 P2P_GROUP_INTERFACE_CLIENT;
2134 wpa_s->global->p2p_group_formation = group_wpa_s;
2135 wpa_s->global->pending_group_iface_for_p2ps = 0;
2137 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2143 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2146 struct wpa_supplicant *wpa_s = eloop_ctx;
2147 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2148 wpas_p2p_group_formation_failed(wpa_s, 0);
2152 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2153 int already_deleted)
2155 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2156 wpa_s->p2pdev, NULL);
2157 if (wpa_s->global->p2p)
2158 p2p_group_formation_failed(wpa_s->global->p2p);
2159 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2163 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2165 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2166 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2167 wpa_s->p2pdev, NULL);
2168 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2169 wpa_s->p2pdev, NULL);
2170 wpa_s->global->p2p_fail_on_wps_complete = 0;
2174 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2176 if (wpa_s->global->p2p_group_formation != wpa_s)
2178 /* Speed up group formation timeout since this cannot succeed */
2179 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2180 wpa_s->p2pdev, NULL);
2181 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2182 wpa_s->p2pdev, NULL);
2186 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2188 struct wpa_supplicant *wpa_s = ctx;
2189 struct wpa_supplicant *group_wpa_s;
2191 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2192 wpa_drv_cancel_remain_on_channel(wpa_s);
2193 wpa_s->off_channel_freq = 0;
2194 wpa_s->roc_waiting_drv_freq = 0;
2198 wpa_msg_global(wpa_s, MSG_INFO,
2199 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2201 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2202 wpas_p2p_remove_pending_group_interface(wpa_s);
2206 if (!res->role_go) {
2207 /* Inform driver of the operating channel of GO. */
2208 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2211 if (wpa_s->p2p_go_ht40)
2213 if (wpa_s->p2p_go_vht)
2215 res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2216 res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2218 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2219 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2221 res->role_go ? "GO" : "client", res->freq, res->ht40,
2222 MAC2STR(res->peer_device_addr),
2223 MAC2STR(res->peer_interface_addr),
2224 p2p_wps_method_text(res->wps_method));
2225 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2227 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2228 struct wpa_ssid *ssid;
2229 ssid = wpa_config_get_network(wpa_s->conf,
2230 wpa_s->p2p_persistent_id);
2231 if (ssid && ssid->disabled == 2 &&
2232 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2233 size_t len = os_strlen(ssid->passphrase);
2234 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2235 "on requested persistent group");
2236 os_memcpy(res->passphrase, ssid->passphrase, len);
2237 res->passphrase[len] = '\0';
2241 if (wpa_s->create_p2p_iface) {
2243 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2244 if (group_wpa_s == NULL) {
2245 wpas_p2p_remove_pending_group_interface(wpa_s);
2246 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2248 wpas_p2p_group_formation_failed(wpa_s, 1);
2251 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2252 wpa_s->pending_interface_name[0] = '\0';
2254 group_wpa_s = wpa_s->parent;
2255 wpa_s->global->p2p_group_formation = group_wpa_s;
2256 if (group_wpa_s != wpa_s)
2257 wpas_p2p_clone_config_dh(group_wpa_s, wpa_s);
2260 group_wpa_s->p2p_in_provisioning = 1;
2261 group_wpa_s->p2pdev = wpa_s;
2262 if (group_wpa_s != wpa_s) {
2263 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2264 sizeof(group_wpa_s->p2p_pin));
2265 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2268 wpas_start_wps_go(group_wpa_s, res, 1);
2270 os_get_reltime(&group_wpa_s->scan_min_time);
2271 wpas_start_wps_enrollee(group_wpa_s, res);
2274 wpa_s->p2p_long_listen = 0;
2275 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2277 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2278 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2279 (res->peer_config_timeout % 100) * 10000,
2280 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2284 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2287 struct wpa_supplicant *wpa_s = ctx;
2288 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2289 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2290 dev_passwd_id, go_intent);
2292 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2296 static void wpas_dev_found(void *ctx, const u8 *addr,
2297 const struct p2p_peer_info *info,
2300 #ifndef CONFIG_NO_STDOUT_DEBUG
2301 struct wpa_supplicant *wpa_s = ctx;
2302 char devtype[WPS_DEV_TYPE_BUFSIZE];
2303 char *wfd_dev_info_hex = NULL;
2305 #ifdef CONFIG_WIFI_DISPLAY
2306 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2307 WFD_SUBELEM_DEVICE_INFO);
2308 #endif /* CONFIG_WIFI_DISPLAY */
2310 if (info->p2ps_instance) {
2312 const u8 *buf = wpabuf_head(info->p2ps_instance);
2313 size_t len = wpabuf_len(info->p2ps_instance);
2320 if (len < 4 + 2 + 1)
2322 id = WPA_GET_LE32(buf);
2324 methods = WPA_GET_BE16(buf);
2327 if (str_len > len - 4 - 2 - 1)
2329 os_memcpy(str, buf, str_len);
2330 str[str_len] = '\0';
2332 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2334 wpa_msg_global(wpa_s, MSG_INFO,
2335 P2P_EVENT_DEVICE_FOUND MACSTR
2336 " p2p_dev_addr=" MACSTR
2337 " pri_dev_type=%s name='%s'"
2338 " config_methods=0x%x"
2341 " adv_id=%x asp_svc=%s%s",
2343 MAC2STR(info->p2p_device_addr),
2344 wps_dev_type_bin2str(
2346 devtype, sizeof(devtype)),
2347 info->device_name, methods,
2348 info->dev_capab, info->group_capab,
2350 info->vendor_elems ?
2351 " vendor_elems=1" : "");
2356 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2357 " p2p_dev_addr=" MACSTR
2358 " pri_dev_type=%s name='%s' config_methods=0x%x "
2359 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2360 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2361 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2363 info->device_name, info->config_methods,
2364 info->dev_capab, info->group_capab,
2365 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2366 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2367 info->vendor_elems ? " vendor_elems=1" : "",
2371 os_free(wfd_dev_info_hex);
2372 #endif /* CONFIG_NO_STDOUT_DEBUG */
2374 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2378 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2380 struct wpa_supplicant *wpa_s = ctx;
2382 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2383 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2385 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2389 static void wpas_find_stopped(void *ctx)
2391 struct wpa_supplicant *wpa_s = ctx;
2393 if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0)
2394 wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed");
2396 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2397 wpas_notify_p2p_find_stopped(wpa_s);
2401 struct wpas_p2p_listen_work {
2403 unsigned int duration;
2404 struct wpabuf *probe_resp_ie;
2408 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2412 wpabuf_free(lwork->probe_resp_ie);
2417 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2419 struct wpas_p2p_listen_work *lwork;
2421 if (!wpa_s->p2p_listen_work)
2424 lwork = wpa_s->p2p_listen_work->ctx;
2425 wpas_p2p_listen_work_free(lwork);
2426 radio_work_done(wpa_s->p2p_listen_work);
2427 wpa_s->p2p_listen_work = NULL;
2431 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2433 struct wpa_supplicant *wpa_s = work->wpa_s;
2434 struct wpas_p2p_listen_work *lwork = work->ctx;
2435 unsigned int duration;
2438 if (work->started) {
2439 wpa_s->p2p_listen_work = NULL;
2440 wpas_stop_listen(wpa_s);
2442 wpas_p2p_listen_work_free(lwork);
2446 wpa_s->p2p_listen_work = work;
2448 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2450 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2451 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2452 "report received Probe Request frames");
2453 wpas_p2p_listen_work_done(wpa_s);
2457 wpa_s->pending_listen_freq = lwork->freq;
2458 wpa_s->pending_listen_duration = lwork->duration;
2460 duration = lwork->duration;
2461 #ifdef CONFIG_TESTING_OPTIONS
2462 if (wpa_s->extra_roc_dur) {
2463 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2464 duration, duration + wpa_s->extra_roc_dur);
2465 duration += wpa_s->extra_roc_dur;
2467 #endif /* CONFIG_TESTING_OPTIONS */
2469 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2470 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2471 "to remain on channel (%u MHz) for Listen "
2472 "state", lwork->freq);
2473 wpas_p2p_listen_work_done(wpa_s);
2474 wpa_s->pending_listen_freq = 0;
2477 wpa_s->off_channel_freq = 0;
2478 wpa_s->roc_waiting_drv_freq = lwork->freq;
2482 static int wpas_start_listen(void *ctx, unsigned int freq,
2483 unsigned int duration,
2484 const struct wpabuf *probe_resp_ie)
2486 struct wpa_supplicant *wpa_s = ctx;
2487 struct wpas_p2p_listen_work *lwork;
2489 if (wpa_s->p2p_listen_work) {
2490 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2494 lwork = os_zalloc(sizeof(*lwork));
2498 lwork->duration = duration;
2499 if (probe_resp_ie) {
2500 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2501 if (lwork->probe_resp_ie == NULL) {
2502 wpas_p2p_listen_work_free(lwork);
2507 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2509 wpas_p2p_listen_work_free(lwork);
2517 static void wpas_stop_listen(void *ctx)
2519 struct wpa_supplicant *wpa_s = ctx;
2520 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2521 wpa_drv_cancel_remain_on_channel(wpa_s);
2522 wpa_s->off_channel_freq = 0;
2523 wpa_s->roc_waiting_drv_freq = 0;
2525 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2528 * Don't cancel Probe Request RX reporting for a connected P2P Client
2529 * handling Probe Request frames.
2531 if (!wpa_s->p2p_cli_probe)
2532 wpa_drv_probe_req_report(wpa_s, 0);
2534 wpas_p2p_listen_work_done(wpa_s);
2538 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2541 struct wpa_supplicant *wpa_s = ctx;
2542 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2547 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2548 const u8 *peer, const char *params,
2549 unsigned int generated_pin)
2551 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2552 " %08d%s", MAC2STR(peer), generated_pin, params);
2556 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2557 const u8 *peer, const char *params)
2559 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2560 "%s", MAC2STR(peer), params);
2564 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2565 const u8 *dev_addr, const u8 *pri_dev_type,
2566 const char *dev_name, u16 supp_config_methods,
2567 u8 dev_capab, u8 group_capab, const u8 *group_id,
2568 size_t group_id_len)
2570 struct wpa_supplicant *wpa_s = ctx;
2571 char devtype[WPS_DEV_TYPE_BUFSIZE];
2573 u8 empty_dev_type[8];
2574 unsigned int generated_pin = 0;
2575 struct wpa_supplicant *group = NULL;
2579 for (group = wpa_s->global->ifaces; group; group = group->next)
2581 struct wpa_ssid *s = group->current_ssid;
2583 s->mode == WPAS_MODE_P2P_GO &&
2584 group_id_len - ETH_ALEN == s->ssid_len &&
2585 os_memcmp(group_id + ETH_ALEN, s->ssid,
2591 if (pri_dev_type == NULL) {
2592 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2593 pri_dev_type = empty_dev_type;
2595 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2596 " pri_dev_type=%s name='%s' config_methods=0x%x "
2597 "dev_capab=0x%x group_capab=0x%x%s%s",
2599 wps_dev_type_bin2str(pri_dev_type, devtype,
2601 dev_name, supp_config_methods, dev_capab, group_capab,
2602 group ? " group=" : "",
2603 group ? group->ifname : "");
2604 if (os_snprintf_error(sizeof(params), res))
2605 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2606 params[sizeof(params) - 1] = '\0';
2608 if (config_methods & WPS_CONFIG_DISPLAY) {
2609 if (wps_generate_pin(&generated_pin) < 0) {
2610 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2611 wpas_notify_p2p_provision_discovery(
2612 wpa_s, peer, 0 /* response */,
2613 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2616 wpas_prov_disc_local_display(wpa_s, peer, params,
2618 } else if (config_methods & WPS_CONFIG_KEYPAD)
2619 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2620 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2621 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2622 MACSTR "%s", MAC2STR(peer), params);
2624 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2625 P2P_PROV_DISC_SUCCESS,
2626 config_methods, generated_pin);
2630 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2632 struct wpa_supplicant *wpa_s = ctx;
2633 unsigned int generated_pin = 0;
2636 if (wpa_s->pending_pd_before_join &&
2637 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2638 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2639 wpa_s->pending_pd_before_join = 0;
2640 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2641 "join-existing-group operation");
2642 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2646 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2647 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2650 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2651 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2652 if (os_snprintf_error(sizeof(params), res))
2653 params[sizeof(params) - 1] = '\0';
2657 if (config_methods & WPS_CONFIG_DISPLAY)
2658 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2659 else if (config_methods & WPS_CONFIG_KEYPAD) {
2660 if (wps_generate_pin(&generated_pin) < 0) {
2661 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2662 wpas_notify_p2p_provision_discovery(
2663 wpa_s, peer, 0 /* response */,
2664 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2667 wpas_prov_disc_local_display(wpa_s, peer, params,
2669 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2670 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2671 MACSTR "%s", MAC2STR(peer), params);
2673 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2674 P2P_PROV_DISC_SUCCESS,
2675 config_methods, generated_pin);
2679 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2680 enum p2p_prov_disc_status status,
2681 u32 adv_id, const u8 *adv_mac,
2682 const char *deferred_session_resp)
2684 struct wpa_supplicant *wpa_s = ctx;
2686 if (wpa_s->p2p_fallback_to_go_neg) {
2687 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2688 "failed - fall back to GO Negotiation");
2689 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
2690 P2P_EVENT_FALLBACK_TO_GO_NEG
2691 "reason=PD-failed");
2692 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2696 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2697 wpa_s->pending_pd_before_join = 0;
2698 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2699 "join-existing-group operation (no ACK for PD "
2701 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2705 if (adv_id && adv_mac && deferred_session_resp) {
2706 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2707 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2708 " deferred_session_resp='%s'",
2709 MAC2STR(peer), status, adv_id,
2710 deferred_session_resp);
2711 } else if (adv_id && adv_mac) {
2712 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2713 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2714 MAC2STR(peer), status, adv_id);
2716 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2717 " p2p_dev_addr=" MACSTR " status=%d",
2718 MAC2STR(peer), status);
2721 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2726 static int freq_included(struct wpa_supplicant *wpa_s,
2727 const struct p2p_channels *channels,
2730 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2731 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2737 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2739 unsigned int num = P2P_MAX_CHANNELS;
2743 p2p_go_dump_common_freqs(wpa_s);
2744 common_freqs = os_calloc(num, sizeof(int));
2748 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2750 wpa_dbg(wpa_s, MSG_DEBUG,
2751 "P2P: Failed to get group common freqs");
2752 os_free(common_freqs);
2756 os_free(wpa_s->p2p_group_common_freqs);
2757 wpa_s->p2p_group_common_freqs = common_freqs;
2758 wpa_s->p2p_group_common_freqs_num = num;
2759 p2p_go_dump_common_freqs(wpa_s);
2764 * Check if the given frequency is one of the possible operating frequencies
2765 * set after the completion of the GO Negotiation.
2767 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2771 p2p_go_dump_common_freqs(wpa_s);
2773 /* assume no restrictions */
2774 if (!wpa_s->p2p_group_common_freqs_num)
2777 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2778 if (wpa_s->p2p_group_common_freqs[i] == freq)
2785 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2786 struct sta_info *sta, void *ctx)
2788 int *ecsa_support = ctx;
2790 *ecsa_support &= sta->ecsa_supported;
2796 /* Check if all the peers support eCSA */
2797 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2799 int ecsa_support = 1;
2801 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2804 return ecsa_support;
2809 * Pick the best frequency to use from all the currently used frequencies.
2811 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2812 struct wpa_used_freq_data *freqs,
2817 /* find a candidate freq that is supported by P2P */
2818 for (c = 0; c < num; c++)
2819 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2825 /* once we have a candidate, try to find a 'better' one */
2826 for (i = c + 1; i < num; i++) {
2827 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2831 * 1. Infrastructure station interfaces have higher preference.
2832 * 2. P2P Clients have higher preference.
2835 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2840 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2843 return freqs[c].freq;
2847 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2848 const u8 *go_dev_addr, const u8 *ssid,
2849 size_t ssid_len, int *go, u8 *group_bssid,
2850 int *force_freq, int persistent_group,
2851 const struct p2p_channels *channels,
2854 struct wpa_supplicant *wpa_s = ctx;
2856 struct wpa_used_freq_data *freqs;
2857 struct wpa_supplicant *grp;
2860 if (!persistent_group) {
2861 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2862 " to join an active group (SSID: %s)",
2863 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2864 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2865 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2867 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2868 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2869 "authorized invitation");
2873 #ifdef CONFIG_WPS_NFC
2874 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2875 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2876 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2877 wpa_s->p2p_wps_method = WPS_NFC;
2878 wpa_s->pending_join_wps_method = WPS_NFC;
2879 os_memcpy(wpa_s->pending_join_dev_addr,
2880 go_dev_addr, ETH_ALEN);
2881 os_memcpy(wpa_s->pending_join_iface_addr,
2885 #endif /* CONFIG_WPS_NFC */
2888 * Do not accept the invitation automatically; notify user and
2891 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2894 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2896 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2897 "running persistent group");
2899 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2903 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2904 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2905 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2906 "invitation to re-invoke a persistent group");
2907 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2908 } else if (!wpa_s->conf->persistent_reconnect)
2909 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2911 for (s = wpa_s->conf->ssid; s; s = s->next) {
2912 if (s->disabled == 2 &&
2913 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2914 s->ssid_len == ssid_len &&
2915 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2920 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2921 " requested reinvocation of an unknown group",
2923 return P2P_SC_FAIL_UNKNOWN_GROUP;
2926 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2928 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2929 wpa_printf(MSG_DEBUG, "P2P: The only available "
2930 "interface is already in use - reject "
2932 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2934 if (wpa_s->p2p_mgmt)
2935 os_memcpy(group_bssid, wpa_s->parent->own_addr,
2938 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2939 } else if (s->mode == WPAS_MODE_P2P_GO) {
2941 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2943 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2944 "interface address for the group");
2945 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2947 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2952 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2955 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2956 sizeof(struct wpa_used_freq_data));
2958 int num_channels = wpa_s->num_multichan_concurrent;
2959 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2960 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2964 /* Get one of the frequencies currently in use */
2965 if (best_freq > 0) {
2966 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2967 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2969 if (wpa_s->num_multichan_concurrent < 2 ||
2970 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2971 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2972 *force_freq = best_freq;
2976 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2977 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2979 /* We are the client */
2980 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2981 "running a GO but we are capable of MCC, "
2982 "figure out the best channel to use");
2984 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2985 /* We are the GO, and *force_freq is not in the
2987 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2988 "in intersection but we are capable of MCC, "
2989 "figure out the best channel to use",
2995 return P2P_SC_SUCCESS;
2999 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3000 const u8 *ssid, size_t ssid_len,
3001 const u8 *go_dev_addr, u8 status,
3004 struct wpa_supplicant *wpa_s = ctx;
3007 for (s = wpa_s->conf->ssid; s; s = s->next) {
3008 if (s->disabled == 2 &&
3009 s->ssid_len == ssid_len &&
3010 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3014 if (status == P2P_SC_SUCCESS) {
3015 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3016 " was accepted; op_freq=%d MHz, SSID=%s",
3017 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3019 int go = s->mode == WPAS_MODE_P2P_GO;
3020 wpas_p2p_group_add_persistent(
3021 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
3022 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
3025 wpa_s->user_initiated_pd = 0;
3026 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3027 wpa_s->p2p_wps_method, 0, op_freq,
3033 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3034 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3035 " was rejected (status %u)", MAC2STR(sa), status);
3041 wpa_msg_global(wpa_s, MSG_INFO,
3042 P2P_EVENT_INVITATION_RECEIVED
3043 "sa=" MACSTR " go_dev_addr=" MACSTR
3044 " bssid=" MACSTR " unknown-network",
3045 MAC2STR(sa), MAC2STR(go_dev_addr),
3048 wpa_msg_global(wpa_s, MSG_INFO,
3049 P2P_EVENT_INVITATION_RECEIVED
3050 "sa=" MACSTR " go_dev_addr=" MACSTR
3052 MAC2STR(sa), MAC2STR(go_dev_addr));
3054 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3059 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3060 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3061 "sa=" MACSTR " persistent=%d freq=%d",
3062 MAC2STR(sa), s->id, op_freq);
3064 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3065 "sa=" MACSTR " persistent=%d",
3066 MAC2STR(sa), s->id);
3068 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3073 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3074 struct wpa_ssid *ssid,
3075 const u8 *peer, int inv)
3078 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3083 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3084 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3088 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3089 if (ssid->mode != WPAS_MODE_P2P_GO &&
3090 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3091 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3092 "due to invitation result", ssid->id);
3093 wpas_notify_network_removed(wpa_s, ssid);
3094 wpa_config_remove_network(wpa_s->conf, ssid->id);
3097 return; /* Peer not found in client list */
3100 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3101 "group %d client list%s",
3102 MAC2STR(peer), ssid->id,
3103 inv ? " due to invitation result" : "");
3104 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3105 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3106 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3107 ssid->num_p2p_clients--;
3108 if (p2p_wpa_s->conf->update_config &&
3109 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3110 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3114 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3117 struct wpa_ssid *ssid;
3119 wpa_s = wpa_s->global->p2p_invite_group;
3121 return; /* No known invitation group */
3122 ssid = wpa_s->current_ssid;
3123 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3124 !ssid->p2p_persistent_group)
3125 return; /* Not operating as a GO in persistent group */
3126 ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
3127 ssid->ssid, ssid->ssid_len);
3128 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3132 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3133 const struct p2p_channels *channels,
3134 const u8 *peer, int neg_freq,
3137 struct wpa_supplicant *wpa_s = ctx;
3138 struct wpa_ssid *ssid;
3142 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3143 "status=%d " MACSTR,
3144 status, MAC2STR(bssid));
3146 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3147 "status=%d ", status);
3149 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3151 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3152 status, MAC2STR(peer));
3153 if (wpa_s->pending_invite_ssid_id == -1) {
3154 struct wpa_supplicant *group_if =
3155 wpa_s->global->p2p_invite_group;
3157 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3158 wpas_remove_persistent_client(wpa_s, peer);
3161 * Invitation to an active group. If this is successful and we
3162 * are the GO, set the client wait to postpone some concurrent
3163 * operations and to allow provisioning and connection to happen
3166 if (status == P2P_SC_SUCCESS &&
3167 group_if && group_if->current_ssid &&
3168 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3169 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3170 #ifdef CONFIG_TESTING_OPTIONS
3171 if (group_if->p2p_go_csa_on_inv) {
3172 wpa_printf(MSG_DEBUG,
3173 "Testing: force P2P GO CSA after invitation");
3174 eloop_cancel_timeout(
3175 wpas_p2p_reconsider_moving_go,
3177 eloop_register_timeout(
3179 wpas_p2p_reconsider_moving_go,
3182 #endif /* CONFIG_TESTING_OPTIONS */
3187 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3188 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3189 "invitation exchange to indicate readiness for "
3193 if (status != P2P_SC_SUCCESS) {
3194 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3195 ssid = wpa_config_get_network(
3196 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3197 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3199 wpas_p2p_remove_pending_group_interface(wpa_s);
3203 ssid = wpa_config_get_network(wpa_s->conf,
3204 wpa_s->pending_invite_ssid_id);
3206 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3207 "data matching with invitation");
3212 * The peer could have missed our ctrl::ack frame for Invitation
3213 * Response and continue retransmitting the frame. To reduce the
3214 * likelihood of the peer not getting successful TX status for the
3215 * Invitation Response frame, wait a short time here before starting
3216 * the persistent group so that we will remain on the current channel to
3217 * acknowledge any possible retransmission from the peer.
3219 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3220 "starting persistent group");
3223 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3224 freq_included(wpa_s, channels, neg_freq))
3226 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3227 freq_included(wpa_s, channels, peer_oper_freq))
3228 freq = peer_oper_freq;
3232 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3233 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3234 wpas_p2p_group_add_persistent(wpa_s, ssid,
3235 ssid->mode == WPAS_MODE_P2P_GO,
3236 wpa_s->p2p_persistent_go_freq,
3238 wpa_s->p2p_go_vht_center_freq2,
3239 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3240 wpa_s->p2p_go_max_oper_chwidth,
3242 ssid->mode == WPAS_MODE_P2P_GO ?
3243 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3248 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3251 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3253 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3257 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3259 reg->channel[reg->channels] = chan;
3264 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3265 struct p2p_channels *chan,
3266 struct p2p_channels *cli_chan)
3270 wpa_s->global->p2p_24ghz_social_channels = 1;
3272 os_memset(cli_chan, 0, sizeof(*cli_chan));
3274 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3277 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3278 chan->reg_class[cla].reg_class = 81;
3279 chan->reg_class[cla].channels = 0;
3280 for (i = 0; i < 11; i++) {
3281 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3282 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3284 if (chan->reg_class[cla].channels)
3287 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3290 /* Operating class 115 - 5 GHz, channels 36-48 */
3291 chan->reg_class[cla].reg_class = 115;
3292 chan->reg_class[cla].channels = 0;
3293 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3294 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3295 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3296 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3297 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3298 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3299 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3300 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3301 if (chan->reg_class[cla].channels)
3304 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3307 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3308 chan->reg_class[cla].reg_class = 124;
3309 chan->reg_class[cla].channels = 0;
3310 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3311 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3312 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3313 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3314 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3315 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3316 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3317 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3318 if (chan->reg_class[cla].channels)
3321 chan->reg_classes = cla;
3327 NOT_ALLOWED, NO_IR, ALLOWED
3330 static int has_channel(struct wpa_global *global,
3331 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3336 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3338 if (wpas_p2p_disallowed_freq(global, freq))
3341 for (i = 0; i < mode->num_channels; i++) {
3342 if (mode->channels[i].chan == chan) {
3344 *flags = mode->channels[i].flag;
3345 if (mode->channels[i].flag &
3346 (HOSTAPD_CHAN_DISABLED |
3347 HOSTAPD_CHAN_RADAR))
3349 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3359 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3360 struct hostapd_hw_modes *mode,
3363 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3366 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3369 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3371 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3372 * so the center channel is 6 channels away from the start/end.
3374 if (channel >= center_channels[i] - 6 &&
3375 channel <= center_channels[i] + 6)
3376 return center_channels[i];
3382 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3383 struct hostapd_hw_modes *mode,
3388 enum chan_allowed res, ret = ALLOWED;
3390 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3393 if (center_chan >= 58 && center_chan <= 138)
3394 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3396 /* check all the channels are available */
3397 for (i = 0; i < 4; i++) {
3398 int adj_chan = center_chan - 6 + i * 4;
3400 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3401 if (res == NOT_ALLOWED)
3406 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3408 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3410 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3412 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3420 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3421 struct hostapd_hw_modes *mode,
3424 u8 center_channels[] = { 50, 114 };
3427 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3430 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3432 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3433 * so the center channel is 14 channels away from the start/end.
3435 if (channel >= center_channels[i] - 14 &&
3436 channel <= center_channels[i] + 14)
3437 return center_channels[i];
3443 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3444 struct hostapd_hw_modes *mode,
3449 enum chan_allowed res, ret = ALLOWED;
3451 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3454 /* VHT 160 MHz uses DFS channels in most countries. */
3456 /* Check all the channels are available */
3457 for (i = 0; i < 8; i++) {
3458 int adj_chan = center_chan - 14 + i * 4;
3460 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3461 if (res == NOT_ALLOWED)
3467 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3469 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3471 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3473 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3475 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3477 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3479 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3481 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3489 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3490 struct hostapd_hw_modes *mode,
3494 enum chan_allowed res, res2;
3496 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3497 if (bw == BW40MINUS) {
3498 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3500 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3501 } else if (bw == BW40PLUS) {
3502 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3504 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3505 } else if (bw == BW80) {
3506 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3507 } else if (bw == BW160) {
3508 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3511 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3513 if (res == NO_IR || res2 == NO_IR)
3519 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3520 struct p2p_channels *chan,
3521 struct p2p_channels *cli_chan)
3523 struct hostapd_hw_modes *mode;
3524 int cla, op, cli_cla;
3526 if (wpa_s->hw.modes == NULL) {
3527 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3528 "of all supported channels; assume dualband "
3530 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3535 for (op = 0; global_op_class[op].op_class; op++) {
3536 const struct oper_class_map *o = &global_op_class[op];
3538 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3540 if (o->p2p == NO_P2P_SUPP)
3543 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3546 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3547 wpa_s->global->p2p_24ghz_social_channels = 1;
3548 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3549 enum chan_allowed res;
3550 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3551 if (res == ALLOWED) {
3553 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3555 reg = &chan->reg_class[cla];
3557 reg->reg_class = o->op_class;
3559 reg->channel[reg->channels] = ch;
3561 } else if (res == NO_IR &&
3562 wpa_s->conf->p2p_add_cli_chan) {
3563 if (cli_reg == NULL) {
3564 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3566 cli_reg = &cli_chan->reg_class[cli_cla];
3568 cli_reg->reg_class = o->op_class;
3570 cli_reg->channel[cli_reg->channels] = ch;
3571 cli_reg->channels++;
3575 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3576 reg->channel, reg->channels);
3579 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3580 cli_reg->channel, cli_reg->channels);
3584 chan->reg_classes = cla;
3585 cli_chan->reg_classes = cli_cla;
3591 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3592 struct hostapd_hw_modes *mode, u8 channel)
3595 enum chan_allowed ret;
3597 for (op = 0; global_op_class[op].op_class; op++) {
3598 const struct oper_class_map *o = &global_op_class[op];
3601 if (o->p2p == NO_P2P_SUPP)
3604 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3605 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3606 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3609 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3611 return (o->bw == BW40MINUS) ? -1 : 1;
3618 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3619 struct hostapd_hw_modes *mode, u8 channel)
3621 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3624 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3628 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3629 struct hostapd_hw_modes *mode, u8 channel)
3631 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3633 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3637 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3640 struct wpa_supplicant *wpa_s = ctx;
3642 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3643 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3649 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3653 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3654 const u8 *ssid, size_t ssid_len)
3656 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3657 struct wpa_ssid *s = wpa_s->current_ssid;
3660 if (s->mode != WPAS_MODE_P2P_GO &&
3661 s->mode != WPAS_MODE_AP &&
3662 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3664 if (s->ssid_len != ssid_len ||
3665 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3675 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3676 const u8 *peer_dev_addr)
3678 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3679 struct wpa_ssid *ssid = wpa_s->current_ssid;
3680 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3682 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3690 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3692 struct wpa_supplicant *wpa_s = ctx;
3694 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3698 static int wpas_is_concurrent_session_active(void *ctx)
3700 struct wpa_supplicant *wpa_s = ctx;
3701 struct wpa_supplicant *ifs;
3703 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3706 if (ifs->wpa_state > WPA_ASSOCIATED)
3713 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3715 struct wpa_supplicant *wpa_s = ctx;
3716 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3720 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3721 const char *conf_p2p_dev)
3723 struct wpa_interface iface;
3724 struct wpa_supplicant *p2pdev_wpa_s;
3726 char force_name[100];
3729 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3731 if (os_snprintf_error(sizeof(ifname), ret))
3733 force_name[0] = '\0';
3734 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3735 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3736 force_name, wpa_s->pending_interface_addr, NULL);
3738 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3741 os_strlcpy(wpa_s->pending_interface_name, ifname,
3742 sizeof(wpa_s->pending_interface_name));
3744 os_memset(&iface, 0, sizeof(iface));
3746 iface.ifname = wpa_s->pending_interface_name;
3747 iface.driver = wpa_s->driver->name;
3748 iface.driver_param = wpa_s->conf->driver_param;
3751 * If a P2P Device configuration file was given, use it as the interface
3752 * configuration file (instead of using parent's configuration file.
3755 iface.confname = conf_p2p_dev;
3756 iface.ctrl_interface = NULL;
3758 iface.confname = wpa_s->confname;
3759 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3762 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3763 if (!p2pdev_wpa_s) {
3764 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3768 p2pdev_wpa_s->p2pdev = p2pdev_wpa_s;
3769 wpa_s->pending_interface_name[0] = '\0';
3774 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3775 const u8 *noa, size_t noa_len)
3777 struct wpa_supplicant *wpa_s, *intf = ctx;
3780 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3781 if (wpa_s->waiting_presence_resp)
3785 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3788 wpa_s->waiting_presence_resp = 0;
3790 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3791 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3792 " status=%u noa=%s", MAC2STR(src), status, hex);
3796 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3797 size_t ssid_len, u8 *go_dev_addr,
3798 u8 *ret_ssid, size_t *ret_ssid_len,
3799 u8 *intended_iface_addr)
3801 struct wpa_supplicant *wpa_s = ctx;
3804 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3806 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3807 *ret_ssid_len = s->ssid_len;
3808 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3810 if (s->mode != WPAS_MODE_P2P_GO) {
3811 os_memset(intended_iface_addr, 0, ETH_ALEN);
3812 } else if (wpas_p2p_create_iface(wpa_s)) {
3813 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3816 os_memcpy(intended_iface_addr,
3817 wpa_s->pending_interface_addr, ETH_ALEN);
3819 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3829 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3830 u8 *ssid, size_t *ssid_len, int *group_iface,
3833 struct wpa_supplicant *wpa_s = ctx;
3834 struct wpa_supplicant *go;
3838 * group_iface will be set to 1 only if a dedicated interface for P2P
3839 * role is required. First, we try to reuse an active GO. However,
3840 * if it is not present, we will try to reactivate an existing
3841 * persistent group and set group_iface to 1, so the caller will know
3842 * that the pending interface should be used.
3849 go = wpas_p2p_get_go_group(wpa_s);
3851 s = wpas_p2p_get_persistent_go(wpa_s);
3852 *group_iface = wpas_p2p_create_iface(wpa_s);
3854 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3858 s = go->current_ssid;
3859 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3861 *freq = go->assoc_freq;
3864 os_memcpy(ssid, s->ssid, s->ssid_len);
3865 *ssid_len = s->ssid_len;
3871 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3872 const u8 *ssid, size_t ssid_len)
3874 struct wpa_supplicant *wpa_s = ctx;
3876 int save_config = 0;
3879 /* Start with our first choice of Persistent Groups */
3880 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3881 if (go && ssid && ssid_len &&
3882 s->ssid_len == ssid_len &&
3883 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3884 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3887 /* Remove stale persistent group */
3888 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3889 wpa_config_remove_network(wpa_s->conf, s->id);
3894 for (i = 0; i < s->num_p2p_clients; i++) {
3895 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3896 peer, ETH_ALEN) != 0)
3899 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3900 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3901 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3904 s->num_p2p_clients--;
3909 p2p_config_write(wpa_s);
3911 /* Return TRUE if valid SSID remains */
3916 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3917 const u8 *feat_cap, size_t feat_cap_len)
3919 static const char pref[] = " feature_cap=";
3925 * We expect a feature capability to contain at least one byte to be
3926 * reported. The string buffer provided by the caller function is
3927 * expected to be big enough to contain all bytes of the attribute for
3928 * known specifications. This function truncates the reported bytes if
3929 * the feature capability data exceeds the string buffer size.
3931 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3934 os_memcpy(buf, pref, sizeof(pref));
3935 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3936 buf_len - sizeof(pref) + 1,
3937 feat_cap, feat_cap_len);
3939 if (ret != (2 * (int) feat_cap_len))
3940 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3944 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3945 const u8 *adv_mac, const u8 *ses_mac,
3946 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3947 u8 conncap, int passwd_id,
3948 const u8 *persist_ssid,
3949 size_t persist_ssid_size, int response_done,
3950 int prov_start, const char *session_info,
3951 const u8 *feat_cap, size_t feat_cap_len,
3953 const u8 *group_ssid, size_t group_ssid_len)
3955 struct wpa_supplicant *wpa_s = ctx;
3957 struct wpa_ssid *persistent_go, *stale, *s = NULL;
3958 int save_config = 0;
3959 struct wpa_supplicant *go_wpa_s;
3960 char feat_cap_str[256];
3965 os_memset(mac, 0, ETH_ALEN);
3973 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3974 feat_cap, feat_cap_len);
3977 if (session_info == NULL) {
3978 wpa_msg_global(wpa_s, MSG_INFO,
3979 P2P_EVENT_P2PS_PROVISION_START MACSTR
3980 " adv_id=%x conncap=%x"
3982 " session=%x mac=" MACSTR
3983 " dev_passwd_id=%d%s",
3984 MAC2STR(dev), adv_id, conncap,
3986 ses_id, MAC2STR(ses_mac),
3987 passwd_id, feat_cap_str);
3989 wpa_msg_global(wpa_s, MSG_INFO,
3990 P2P_EVENT_P2PS_PROVISION_START MACSTR
3991 " adv_id=%x conncap=%x"
3993 " session=%x mac=" MACSTR
3994 " dev_passwd_id=%d info='%s'%s",
3995 MAC2STR(dev), adv_id, conncap,
3997 ses_id, MAC2STR(ses_mac),
3998 passwd_id, session_info, feat_cap_str);
4003 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4004 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4006 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4007 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4008 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4010 if (persistent_go && !persistent_go->num_p2p_clients) {
4011 /* remove empty persistent GO */
4012 wpa_config_remove_network(wpa_s->conf,
4016 wpa_msg_global(wpa_s, MSG_INFO,
4017 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4019 " adv_id=%x adv_mac=" MACSTR
4020 " session=%x mac=" MACSTR "%s",
4021 MAC2STR(dev), status,
4022 adv_id, MAC2STR(adv_mac),
4023 ses_id, MAC2STR(ses_mac), feat_cap_str);
4027 /* Clean up stale persistent groups with this device */
4028 if (persist_ssid && persist_ssid_size)
4029 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4032 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4033 is_zero_ether_addr(grp_mac)) {
4034 wpa_dbg(wpa_s, MSG_ERROR,
4035 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4040 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4044 if (s && s->ssid_len == stale->ssid_len &&
4045 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4046 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4049 /* Remove stale persistent group */
4050 if (stale->mode != WPAS_MODE_P2P_GO ||
4051 stale->num_p2p_clients <= 1) {
4052 wpa_config_remove_network(wpa_s->conf, stale->id);
4056 for (i = 0; i < stale->num_p2p_clients; i++) {
4057 if (os_memcmp(stale->p2p_client_list +
4059 dev, ETH_ALEN) == 0) {
4060 os_memmove(stale->p2p_client_list +
4062 stale->p2p_client_list +
4064 (stale->num_p2p_clients -
4069 stale->num_p2p_clients--;
4075 p2p_config_write(wpa_s);
4078 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4079 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4081 if (persistent_go && s != persistent_go &&
4082 !persistent_go->num_p2p_clients) {
4083 /* remove empty persistent GO */
4084 wpa_config_remove_network(wpa_s->conf,
4089 wpa_msg_global(wpa_s, MSG_INFO,
4090 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4092 " adv_id=%x adv_mac=" MACSTR
4093 " session=%x mac=" MACSTR
4095 MAC2STR(dev), status,
4096 adv_id, MAC2STR(adv_mac),
4097 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4101 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4103 * We need to copy the interface name. Simply saving a
4104 * pointer isn't enough, since if we use pending_interface_name
4105 * it will be overwritten when the group is added.
4107 char go_ifname[100];
4109 go_ifname[0] = '\0';
4111 wpa_s->global->pending_p2ps_group = 1;
4112 wpa_s->global->pending_p2ps_group_freq = freq;
4114 if (!wpas_p2p_create_iface(wpa_s))
4115 os_memcpy(go_ifname, wpa_s->ifname,
4117 else if (wpa_s->pending_interface_name[0])
4118 os_memcpy(go_ifname,
4119 wpa_s->pending_interface_name,
4122 if (!go_ifname[0]) {
4123 wpas_p2ps_prov_complete(
4124 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4125 dev, adv_mac, ses_mac,
4126 grp_mac, adv_id, ses_id, 0, 0,
4127 NULL, 0, 0, 0, NULL, NULL, 0, 0,
4132 /* If PD Resp complete, start up the GO */
4133 if (response_done && persistent_go) {
4134 wpas_p2p_group_add_persistent(
4135 wpa_s, persistent_go,
4136 0, 0, freq, 0, 0, 0, 0, NULL,
4137 persistent_go->mode ==
4139 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4141 } else if (response_done) {
4142 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4145 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4146 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4148 wpa_s->p2ps_method_config_any = 1;
4150 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4151 os_memcpy(go_ifname, go_wpa_s->ifname,
4154 if (is_zero_ether_addr(grp_mac)) {
4155 wpa_dbg(go_wpa_s, MSG_DEBUG,
4156 "P2P: Setting PIN-1 for ANY");
4157 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4158 "12345670", NULL, 0,
4161 wpa_dbg(go_wpa_s, MSG_DEBUG,
4162 "P2P: Setting PIN-1 for " MACSTR,
4164 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4165 "12345670", NULL, 0,
4169 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4170 wpa_s->p2ps_method_config_any = 1;
4173 wpa_msg_global(wpa_s, MSG_INFO,
4174 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4175 " status=%d conncap=%x"
4176 " adv_id=%x adv_mac=" MACSTR
4177 " session=%x mac=" MACSTR
4178 " dev_passwd_id=%d go=%s%s",
4179 MAC2STR(dev), status, conncap,
4180 adv_id, MAC2STR(adv_mac),
4181 ses_id, MAC2STR(ses_mac),
4182 passwd_id, go_ifname, feat_cap_str);
4186 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4187 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4189 if (persistent_go && !persistent_go->num_p2p_clients) {
4190 /* remove empty persistent GO */
4191 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4194 if (conncap == P2PS_SETUP_CLIENT) {
4195 char ssid_hex[32 * 2 + 1];
4198 wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4199 group_ssid, group_ssid_len);
4202 wpa_msg_global(wpa_s, MSG_INFO,
4203 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4204 " status=%d conncap=%x"
4205 " adv_id=%x adv_mac=" MACSTR
4206 " session=%x mac=" MACSTR
4207 " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4208 MAC2STR(dev), status, conncap,
4209 adv_id, MAC2STR(adv_mac),
4210 ses_id, MAC2STR(ses_mac),
4211 passwd_id, MAC2STR(grp_mac), feat_cap_str,
4212 group_ssid ? " group_ssid=" : "", ssid_hex);
4214 wpa_msg_global(wpa_s, MSG_INFO,
4215 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4216 " status=%d conncap=%x"
4217 " adv_id=%x adv_mac=" MACSTR
4218 " session=%x mac=" MACSTR
4219 " dev_passwd_id=%d%s",
4220 MAC2STR(dev), status, conncap,
4221 adv_id, MAC2STR(adv_mac),
4222 ses_id, MAC2STR(ses_mac),
4223 passwd_id, feat_cap_str);
4228 static int _wpas_p2p_in_progress(void *ctx)
4230 struct wpa_supplicant *wpa_s = ctx;
4231 return wpas_p2p_in_progress(wpa_s);
4235 static int wpas_prov_disc_resp_cb(void *ctx)
4237 struct wpa_supplicant *wpa_s = ctx;
4238 struct wpa_ssid *persistent_go;
4241 if (!wpa_s->global->pending_p2ps_group)
4244 freq = wpa_s->global->pending_p2ps_group_freq;
4245 wpa_s->global->pending_p2ps_group_freq = 0;
4246 wpa_s->global->pending_p2ps_group = 0;
4248 if (wpas_p2p_get_go_group(wpa_s))
4250 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4252 if (persistent_go) {
4253 wpas_p2p_group_add_persistent(
4254 wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4255 persistent_go->mode == WPAS_MODE_P2P_GO ?
4256 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4258 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4265 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4267 unsigned int *freq_list)
4269 struct wpa_supplicant *wpa_s = ctx;
4271 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4272 WPA_IF_P2P_CLIENT, len, freq_list);
4277 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4278 * @global: Pointer to global data from wpa_supplicant_init()
4279 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4280 * Returns: 0 on success, -1 on failure
4282 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4284 struct p2p_config p2p;
4287 if (wpa_s->conf->p2p_disabled)
4290 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4296 os_memset(&p2p, 0, sizeof(p2p));
4298 p2p.debug_print = wpas_p2p_debug_print;
4299 p2p.p2p_scan = wpas_p2p_scan;
4300 p2p.send_action = wpas_send_action;
4301 p2p.send_action_done = wpas_send_action_done;
4302 p2p.go_neg_completed = wpas_go_neg_completed;
4303 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4304 p2p.dev_found = wpas_dev_found;
4305 p2p.dev_lost = wpas_dev_lost;
4306 p2p.find_stopped = wpas_find_stopped;
4307 p2p.start_listen = wpas_start_listen;
4308 p2p.stop_listen = wpas_stop_listen;
4309 p2p.send_probe_resp = wpas_send_probe_resp;
4310 p2p.sd_request = wpas_sd_request;
4311 p2p.sd_response = wpas_sd_response;
4312 p2p.prov_disc_req = wpas_prov_disc_req;
4313 p2p.prov_disc_resp = wpas_prov_disc_resp;
4314 p2p.prov_disc_fail = wpas_prov_disc_fail;
4315 p2p.invitation_process = wpas_invitation_process;
4316 p2p.invitation_received = wpas_invitation_received;
4317 p2p.invitation_result = wpas_invitation_result;
4318 p2p.get_noa = wpas_get_noa;
4319 p2p.go_connected = wpas_go_connected;
4320 p2p.presence_resp = wpas_presence_resp;
4321 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4322 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4323 p2p.get_persistent_group = wpas_get_persistent_group;
4324 p2p.get_go_info = wpas_get_go_info;
4325 p2p.remove_stale_groups = wpas_remove_stale_groups;
4326 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4327 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4328 p2p.p2ps_group_capability = p2ps_group_capability;
4329 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4331 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4332 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4333 p2p.dev_name = wpa_s->conf->device_name;
4334 p2p.manufacturer = wpa_s->conf->manufacturer;
4335 p2p.model_name = wpa_s->conf->model_name;
4336 p2p.model_number = wpa_s->conf->model_number;
4337 p2p.serial_number = wpa_s->conf->serial_number;
4339 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4340 p2p.config_methods = wpa_s->wps->config_methods;
4343 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4344 wpa_printf(MSG_ERROR,
4345 "P2P: Failed to configure supported channel list");
4349 if (wpa_s->conf->p2p_listen_reg_class &&
4350 wpa_s->conf->p2p_listen_channel) {
4351 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4352 p2p.channel = wpa_s->conf->p2p_listen_channel;
4353 p2p.channel_forced = 1;
4356 * Pick one of the social channels randomly as the listen
4359 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4360 &p2p.channel) != 0) {
4361 wpa_printf(MSG_INFO,
4362 "P2P: No social channels supported by the driver - do not enable P2P");
4365 p2p.channel_forced = 0;
4367 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4368 p2p.reg_class, p2p.channel);
4370 if (wpa_s->conf->p2p_oper_reg_class &&
4371 wpa_s->conf->p2p_oper_channel) {
4372 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4373 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4374 p2p.cfg_op_channel = 1;
4375 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4376 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4380 * Use random operation channel from 2.4 GHz band social
4381 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4382 * other preference is indicated.
4384 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4385 &p2p.op_channel) != 0) {
4386 wpa_printf(MSG_ERROR,
4387 "P2P: Failed to select random social channel as operation channel");
4390 p2p.cfg_op_channel = 0;
4391 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4392 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4395 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4396 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4397 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4400 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4401 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4402 p2p.country[2] = 0x04;
4404 os_memcpy(p2p.country, "XX\x04", 3);
4406 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4409 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4410 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4411 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4413 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4414 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4416 p2p.max_peers = 100;
4418 if (wpa_s->conf->p2p_ssid_postfix) {
4419 p2p.ssid_postfix_len =
4420 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4421 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4422 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4423 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4424 p2p.ssid_postfix_len);
4427 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4429 p2p.max_listen = wpa_s->max_remain_on_chan;
4431 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4432 wpa_s->conf->p2p_passphrase_len <= 63)
4433 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4435 p2p.passphrase_len = 8;
4437 global->p2p = p2p_init(&p2p);
4438 if (global->p2p == NULL)
4440 global->p2p_init_wpa_s = wpa_s;
4442 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4443 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4445 p2p_add_wps_vendor_extension(
4446 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4449 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4456 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4457 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4459 * This function deinitialize per-interface P2P data.
4461 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4463 if (wpa_s->driver && wpa_s->drv_priv)
4464 wpa_drv_probe_req_report(wpa_s, 0);
4466 if (wpa_s->go_params) {
4467 /* Clear any stored provisioning info */
4468 p2p_clear_provisioning_info(
4470 wpa_s->go_params->peer_device_addr);
4473 os_free(wpa_s->go_params);
4474 wpa_s->go_params = NULL;
4475 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4476 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4477 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4478 wpa_s->p2p_long_listen = 0;
4479 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4480 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4481 wpas_p2p_remove_pending_group_interface(wpa_s);
4482 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4483 wpas_p2p_listen_work_done(wpa_s);
4484 if (wpa_s->p2p_send_action_work) {
4485 os_free(wpa_s->p2p_send_action_work->ctx);
4486 radio_work_done(wpa_s->p2p_send_action_work);
4487 wpa_s->p2p_send_action_work = NULL;
4489 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4491 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4492 wpa_s->p2p_oob_dev_pw = NULL;
4494 os_free(wpa_s->p2p_group_common_freqs);
4495 wpa_s->p2p_group_common_freqs = NULL;
4496 wpa_s->p2p_group_common_freqs_num = 0;
4498 /* TODO: remove group interface from the driver if this wpa_s instance
4499 * is on top of a P2P group interface */
4504 * wpas_p2p_deinit_global - Deinitialize global P2P module
4505 * @global: Pointer to global data from wpa_supplicant_init()
4507 * This function deinitializes the global (per device) P2P module.
4509 static void wpas_p2p_deinit_global(struct wpa_global *global)
4511 struct wpa_supplicant *wpa_s, *tmp;
4513 wpa_s = global->ifaces;
4515 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4517 /* Remove remaining P2P group interfaces */
4518 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4519 wpa_s = wpa_s->next;
4521 tmp = global->ifaces;
4524 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4529 /* Disconnect from the P2P group and deinit the interface */
4530 wpas_p2p_disconnect(tmp);
4534 * Deinit GO data on any possibly remaining interface (if main
4535 * interface is used as GO).
4537 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4538 if (wpa_s->ap_iface)
4539 wpas_p2p_group_deinit(wpa_s);
4542 p2p_deinit(global->p2p);
4544 global->p2p_init_wpa_s = NULL;
4548 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4550 if (wpa_s->conf->p2p_no_group_iface)
4551 return 0; /* separate interface disabled per configuration */
4552 if (wpa_s->drv_flags &
4553 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4554 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4555 return 1; /* P2P group requires a new interface in every case
4557 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4558 return 0; /* driver does not support concurrent operations */
4559 if (wpa_s->global->ifaces->next)
4560 return 1; /* more that one interface already in use */
4561 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4562 return 1; /* this interface is already in use */
4567 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4568 const u8 *peer_addr,
4569 enum p2p_wps_method wps_method,
4570 int go_intent, const u8 *own_interface_addr,
4571 unsigned int force_freq, int persistent_group,
4572 struct wpa_ssid *ssid, unsigned int pref_freq)
4574 if (persistent_group && wpa_s->conf->persistent_reconnect)
4575 persistent_group = 2;
4578 * Increase GO config timeout if HT40 is used since it takes some time
4579 * to scan channels for coex purposes before the BSS can be started.
4581 p2p_set_config_timeout(wpa_s->global->p2p,
4582 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4584 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4585 go_intent, own_interface_addr, force_freq,
4586 persistent_group, ssid ? ssid->ssid : NULL,
4587 ssid ? ssid->ssid_len : 0,
4588 wpa_s->p2p_pd_before_go_neg, pref_freq,
4589 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4594 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4595 const u8 *peer_addr,
4596 enum p2p_wps_method wps_method,
4597 int go_intent, const u8 *own_interface_addr,
4598 unsigned int force_freq, int persistent_group,
4599 struct wpa_ssid *ssid, unsigned int pref_freq)
4601 if (persistent_group && wpa_s->conf->persistent_reconnect)
4602 persistent_group = 2;
4604 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4605 go_intent, own_interface_addr, force_freq,
4606 persistent_group, ssid ? ssid->ssid : NULL,
4607 ssid ? ssid->ssid_len : 0, pref_freq,
4608 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4613 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4615 wpa_s->p2p_join_scan_count++;
4616 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4617 wpa_s->p2p_join_scan_count);
4618 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4619 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4620 " for join operationg - stop join attempt",
4621 MAC2STR(wpa_s->pending_join_iface_addr));
4622 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4623 if (wpa_s->p2p_auto_pd) {
4624 wpa_s->p2p_auto_pd = 0;
4625 wpa_msg_global(wpa_s, MSG_INFO,
4626 P2P_EVENT_PROV_DISC_FAILURE
4627 " p2p_dev_addr=" MACSTR " status=N/A",
4628 MAC2STR(wpa_s->pending_join_dev_addr));
4631 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4632 P2P_EVENT_GROUP_FORMATION_FAILURE);
4633 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4638 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4641 unsigned int num, i;
4642 struct wpa_used_freq_data *freqs;
4644 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4645 /* Multiple channels are supported and not all are in use */
4649 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4650 sizeof(struct wpa_used_freq_data));
4654 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4655 wpa_s->num_multichan_concurrent);
4657 for (i = 0; i < num; i++) {
4658 if (freqs[i].freq == freq) {
4659 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4666 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4675 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4676 const u8 *peer_dev_addr)
4678 struct wpa_bss *bss;
4681 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4684 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4685 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4690 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4692 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4693 "%ld.%06ld (%supdated in last scan)",
4694 bss->last_update.sec, bss->last_update.usec,
4695 updated ? "": "not ");
4701 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4702 struct wpa_scan_results *scan_res)
4704 struct wpa_bss *bss = NULL;
4706 u8 iface_addr[ETH_ALEN];
4708 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4710 if (wpa_s->global->p2p_disabled)
4713 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4714 scan_res ? (int) scan_res->num : -1,
4715 wpa_s->p2p_auto_join ? "auto_" : "");
4718 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4720 if (wpa_s->p2p_auto_pd) {
4721 int join = wpas_p2p_peer_go(wpa_s,
4722 wpa_s->pending_join_dev_addr);
4724 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4725 wpa_s->auto_pd_scan_retry++;
4726 bss = wpa_bss_get_bssid_latest(
4727 wpa_s, wpa_s->pending_join_dev_addr);
4730 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4731 "the peer " MACSTR " at %d MHz",
4732 wpa_s->auto_pd_scan_retry,
4734 pending_join_dev_addr),
4736 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4744 wpa_s->p2p_auto_pd = 0;
4745 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4746 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4747 MAC2STR(wpa_s->pending_join_dev_addr), join);
4748 if (p2p_prov_disc_req(wpa_s->global->p2p,
4749 wpa_s->pending_join_dev_addr, NULL,
4750 wpa_s->pending_pd_config_methods, join,
4751 0, wpa_s->user_initiated_pd) < 0) {
4752 wpa_s->p2p_auto_pd = 0;
4753 wpa_msg_global(wpa_s, MSG_INFO,
4754 P2P_EVENT_PROV_DISC_FAILURE
4755 " p2p_dev_addr=" MACSTR " status=N/A",
4756 MAC2STR(wpa_s->pending_join_dev_addr));
4761 if (wpa_s->p2p_auto_join) {
4762 int join = wpas_p2p_peer_go(wpa_s,
4763 wpa_s->pending_join_dev_addr);
4765 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4766 "running a GO -> use GO Negotiation");
4767 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4768 P2P_EVENT_FALLBACK_TO_GO_NEG
4769 "reason=peer-not-running-GO");
4770 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4771 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4772 wpa_s->p2p_persistent_group, 0, 0, 0,
4773 wpa_s->p2p_go_intent,
4774 wpa_s->p2p_connect_freq,
4775 wpa_s->p2p_go_vht_center_freq2,
4776 wpa_s->p2p_persistent_id,
4777 wpa_s->p2p_pd_before_go_neg,
4780 wpa_s->p2p_go_max_oper_chwidth,
4785 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4786 "try to join the group", join ? "" :
4789 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4790 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4791 wpa_s->p2p_fallback_to_go_neg = 1;
4795 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4796 wpa_s->pending_join_iface_addr);
4798 p2p_get_interface_addr(wpa_s->global->p2p,
4799 wpa_s->pending_join_dev_addr,
4801 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4802 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4803 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4804 "address for join from " MACSTR " to " MACSTR
4805 " based on newly discovered P2P peer entry",
4806 MAC2STR(wpa_s->pending_join_iface_addr),
4807 MAC2STR(iface_addr));
4808 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4811 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4812 wpa_s->pending_join_iface_addr);
4815 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4816 "from P2P peer table: %d MHz", freq);
4818 if (wpa_s->p2p_join_ssid_len) {
4819 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4820 MACSTR " and SSID %s",
4821 MAC2STR(wpa_s->pending_join_iface_addr),
4822 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4823 wpa_s->p2p_join_ssid_len));
4824 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4825 wpa_s->p2p_join_ssid,
4826 wpa_s->p2p_join_ssid_len);
4828 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4829 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4830 bss = wpa_bss_get_bssid_latest(wpa_s,
4831 wpa_s->pending_join_iface_addr);
4834 u8 dev_addr[ETH_ALEN];
4837 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4838 "from BSS table: %d MHz (SSID %s)", freq,
4839 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4840 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4842 os_memcmp(wpa_s->pending_join_dev_addr,
4843 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4844 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4846 wpa_printf(MSG_DEBUG,
4847 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4849 MAC2STR(wpa_s->pending_join_dev_addr));
4850 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4857 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4858 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4859 P2P_EVENT_GROUP_FORMATION_FAILURE
4860 "reason=FREQ_CONFLICT");
4861 wpas_notify_p2p_group_formation_failure(
4862 wpa_s, "FREQ_CONFLICT");
4866 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4867 "prior to joining an existing group (GO " MACSTR
4869 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4870 wpa_s->pending_pd_before_join = 1;
4872 switch (wpa_s->pending_join_wps_method) {
4873 case WPS_PIN_DISPLAY:
4874 method = WPS_CONFIG_KEYPAD;
4876 case WPS_PIN_KEYPAD:
4877 method = WPS_CONFIG_DISPLAY;
4880 method = WPS_CONFIG_PUSHBUTTON;
4883 method = WPS_CONFIG_P2PS;
4890 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4891 wpa_s->pending_join_dev_addr) ==
4894 * We have already performed provision discovery for
4895 * joining the group. Proceed directly to join
4896 * operation without duplicated provision discovery. */
4897 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4898 "with " MACSTR " already done - proceed to "
4900 MAC2STR(wpa_s->pending_join_dev_addr));
4901 wpa_s->pending_pd_before_join = 0;
4905 if (p2p_prov_disc_req(wpa_s->global->p2p,
4906 wpa_s->pending_join_dev_addr,
4908 freq, wpa_s->user_initiated_pd) < 0) {
4909 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4910 "Discovery Request before joining an "
4912 wpa_s->pending_pd_before_join = 0;
4918 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4919 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4920 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4921 wpas_p2p_check_join_scan_limit(wpa_s);
4925 /* Start join operation immediately */
4926 wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4927 wpa_s->p2p_join_ssid_len);
4931 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4932 const u8 *ssid, size_t ssid_len)
4935 struct wpa_driver_scan_params params;
4936 struct wpabuf *wps_ie, *ies;
4938 int freqs[2] = { 0, 0 };
4941 os_memset(¶ms, 0, sizeof(params));
4943 /* P2P Wildcard SSID */
4944 params.num_ssids = 1;
4945 if (ssid && ssid_len) {
4946 params.ssids[0].ssid = ssid;
4947 params.ssids[0].ssid_len = ssid_len;
4948 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4949 wpa_s->p2p_join_ssid_len = ssid_len;
4951 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4952 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4953 wpa_s->p2p_join_ssid_len = 0;
4956 wpa_s->wps->dev.p2p = 1;
4957 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4958 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4960 if (wps_ie == NULL) {
4961 wpas_p2p_scan_res_join(wpa_s, NULL);
4968 * If freq is not provided, check the operating freq of the GO
4969 * and use a single channel scan on if possible.
4971 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4972 wpa_s->pending_join_iface_addr);
4978 params.freqs = freqs;
4981 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4982 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4984 wpabuf_free(wps_ie);
4985 wpas_p2p_scan_res_join(wpa_s, NULL);
4988 wpabuf_put_buf(ies, wps_ie);
4989 wpabuf_free(wps_ie);
4991 bands = wpas_get_bands(wpa_s, freqs);
4992 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
4994 params.p2p_probe = 1;
4995 params.extra_ies = wpabuf_head(ies);
4996 params.extra_ies_len = wpabuf_len(ies);
4999 * Run a scan to update BSS table and start Provision Discovery once
5000 * the new scan results become available.
5002 ret = wpa_drv_scan(wpa_s, ¶ms);
5004 os_get_reltime(&wpa_s->scan_trigger_time);
5005 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5006 wpa_s->own_scan_requested = 1;
5012 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5014 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5015 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5016 wpas_p2p_check_join_scan_limit(wpa_s);
5021 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5023 struct wpa_supplicant *wpa_s = eloop_ctx;
5024 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5028 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5029 const u8 *dev_addr, enum p2p_wps_method wps_method,
5030 int auto_join, int op_freq,
5031 const u8 *ssid, size_t ssid_len)
5033 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5034 MACSTR " dev " MACSTR " op_freq=%d)%s",
5035 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5036 auto_join ? " (auto_join)" : "");
5037 if (ssid && ssid_len) {
5038 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5039 wpa_ssid_txt(ssid, ssid_len));
5042 wpa_s->p2p_auto_pd = 0;
5043 wpa_s->p2p_auto_join = !!auto_join;
5044 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5045 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5046 wpa_s->pending_join_wps_method = wps_method;
5048 /* Make sure we are not running find during connection establishment */
5049 wpas_p2p_stop_find(wpa_s);
5051 wpa_s->p2p_join_scan_count = 0;
5052 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5057 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5058 const u8 *ssid, size_t ssid_len)
5060 struct wpa_supplicant *group;
5061 struct p2p_go_neg_results res;
5062 struct wpa_bss *bss;
5064 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5067 if (group != wpa_s) {
5068 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5069 sizeof(group->p2p_pin));
5070 group->p2p_wps_method = wpa_s->p2p_wps_method;
5073 * Need to mark the current interface for p2p_group_formation
5074 * when a separate group interface is not used. This is needed
5075 * to allow p2p_cancel stop a pending p2p_connect-join.
5076 * wpas_p2p_init_group_interface() addresses this for the case
5077 * where a separate group interface is used.
5079 wpa_s->global->p2p_group_formation = wpa_s;
5082 group->p2p_in_provisioning = 1;
5083 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5085 os_memset(&res, 0, sizeof(res));
5086 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5087 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5089 res.wps_method = wpa_s->pending_join_wps_method;
5090 if (freq && ssid && ssid_len) {
5092 res.ssid_len = ssid_len;
5093 os_memcpy(res.ssid, ssid, ssid_len);
5095 if (ssid && ssid_len) {
5096 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5099 bss = wpa_bss_get_bssid_latest(
5100 wpa_s, wpa_s->pending_join_iface_addr);
5103 res.freq = bss->freq;
5104 res.ssid_len = bss->ssid_len;
5105 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5106 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5108 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5109 } else if (ssid && ssid_len) {
5110 res.ssid_len = ssid_len;
5111 os_memcpy(res.ssid, ssid, ssid_len);
5112 wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5113 wpa_ssid_txt(ssid, ssid_len));
5117 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5118 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5120 wpa_drv_cancel_remain_on_channel(wpa_s);
5121 wpa_s->off_channel_freq = 0;
5122 wpa_s->roc_waiting_drv_freq = 0;
5124 wpas_start_wps_enrollee(group, &res);
5127 * Allow a longer timeout for join-a-running-group than normal 15
5128 * second group formation timeout since the GO may not have authorized
5129 * our connection yet.
5131 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5132 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5139 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5140 int *force_freq, int *pref_freq, int go,
5141 unsigned int *pref_freq_list,
5142 unsigned int *num_pref_freq)
5144 struct wpa_used_freq_data *freqs;
5145 int res, best_freq, num_unused;
5146 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5148 max_pref_freq = *num_pref_freq;
5151 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5152 sizeof(struct wpa_used_freq_data));
5156 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5157 wpa_s->num_multichan_concurrent);
5160 * It is possible that the total number of used frequencies is bigger
5161 * than the number of frequencies used for P2P, so get the system wide
5162 * number of unused frequencies.
5164 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5166 wpa_printf(MSG_DEBUG,
5167 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5168 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5173 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5175 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5177 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5178 ieee80211_is_dfs(freq)) {
5180 * If freq is a DFS channel and DFS is offloaded
5181 * to the driver, allow P2P GO to use it.
5183 wpa_printf(MSG_DEBUG,
5184 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5187 wpa_printf(MSG_DEBUG,
5188 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5195 for (i = 0; i < num; i++) {
5196 if (freqs[i].freq == freq)
5200 if (num_unused <= 0 && !freq_in_use) {
5201 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5206 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5207 "requested channel (%u MHz)", freq);
5212 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5214 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5215 enum wpa_driver_if_type iface_type;
5218 iface_type = WPA_IF_P2P_GO;
5220 iface_type = WPA_IF_P2P_CLIENT;
5222 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5225 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5228 if (!res && max_pref_freq > 0) {
5229 *num_pref_freq = max_pref_freq;
5231 while (wpas_p2p_disallowed_freq(wpa_s->global,
5232 pref_freq_list[i]) &&
5233 i < *num_pref_freq) {
5234 wpa_printf(MSG_DEBUG,
5235 "P2P: preferred_freq_list[%d]=%d is disallowed",
5236 i, pref_freq_list[i]);
5239 if (i != *num_pref_freq) {
5240 best_freq = pref_freq_list[i];
5241 wpa_printf(MSG_DEBUG,
5242 "P2P: Using preferred_freq_list[%d]=%d",
5245 wpa_printf(MSG_DEBUG,
5246 "P2P: All driver preferred frequencies are disallowed for P2P use");
5250 wpa_printf(MSG_DEBUG,
5251 "P2P: No preferred frequency list available");
5255 /* We have a candidate frequency to use */
5256 if (best_freq > 0) {
5257 if (*pref_freq == 0 && num_unused > 0) {
5258 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5260 *pref_freq = best_freq;
5262 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5264 *force_freq = best_freq;
5266 } else if (num_unused > 0) {
5267 wpa_printf(MSG_DEBUG,
5268 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5271 wpa_printf(MSG_DEBUG,
5272 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5286 * wpas_p2p_connect - Request P2P Group Formation to be started
5287 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5288 * @peer_addr: Address of the peer P2P Device
5289 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5290 * @persistent_group: Whether to create a persistent group
5291 * @auto_join: Whether to select join vs. GO Negotiation automatically
5292 * @join: Whether to join an existing group (as a client) instead of starting
5293 * Group Owner negotiation; @peer_addr is BSSID in that case
5294 * @auth: Whether to only authorize the connection instead of doing that and
5295 * initiating Group Owner negotiation
5296 * @go_intent: GO Intent or -1 to use default
5297 * @freq: Frequency for the group or 0 for auto-selection
5298 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5299 * @persistent_id: Persistent group credentials to use for forcing GO
5300 * parameters or -1 to generate new values (SSID/passphrase)
5301 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5302 * interoperability workaround when initiating group formation
5303 * @ht40: Start GO with 40 MHz channel width
5304 * @vht: Start GO with VHT support
5305 * @vht_chwidth: Channel width supported by GO operating with VHT support
5306 * (VHT_CHANWIDTH_*).
5307 * @group_ssid: Specific Group SSID for join or %NULL if not set
5308 * @group_ssid_len: Length of @group_ssid in octets
5309 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5310 * failure, -2 on failure due to channel not currently available,
5311 * -3 if forced channel is not supported
5313 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5314 const char *pin, enum p2p_wps_method wps_method,
5315 int persistent_group, int auto_join, int join, int auth,
5316 int go_intent, int freq, unsigned int vht_center_freq2,
5317 int persistent_id, int pd, int ht40, int vht,
5318 unsigned int vht_chwidth, const u8 *group_ssid,
5319 size_t group_ssid_len)
5321 int force_freq = 0, pref_freq = 0;
5323 enum wpa_driver_if_type iftype;
5325 struct wpa_ssid *ssid = NULL;
5326 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5328 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5331 if (persistent_id >= 0) {
5332 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5333 if (ssid == NULL || ssid->disabled != 2 ||
5334 ssid->mode != WPAS_MODE_P2P_GO)
5338 os_free(wpa_s->global->add_psk);
5339 wpa_s->global->add_psk = NULL;
5341 wpa_s->global->p2p_fail_on_wps_complete = 0;
5342 wpa_s->global->pending_p2ps_group = 0;
5343 wpa_s->global->pending_p2ps_group_freq = 0;
5344 wpa_s->p2ps_method_config_any = 0;
5347 go_intent = wpa_s->conf->p2p_go_intent;
5350 wpa_s->p2p_long_listen = 0;
5352 wpa_s->p2p_wps_method = wps_method;
5353 wpa_s->p2p_persistent_group = !!persistent_group;
5354 wpa_s->p2p_persistent_id = persistent_id;
5355 wpa_s->p2p_go_intent = go_intent;
5356 wpa_s->p2p_connect_freq = freq;
5357 wpa_s->p2p_fallback_to_go_neg = 0;
5358 wpa_s->p2p_pd_before_go_neg = !!pd;
5359 wpa_s->p2p_go_ht40 = !!ht40;
5360 wpa_s->p2p_go_vht = !!vht;
5361 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5362 wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5365 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5366 else if (wps_method == WPS_PIN_DISPLAY) {
5367 if (wps_generate_pin((unsigned int *) &ret) < 0)
5369 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5371 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5372 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5373 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5376 wpa_s->p2p_pin[0] = '\0';
5378 if (join || auto_join) {
5379 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5381 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5382 "connect a running group from " MACSTR,
5383 MAC2STR(peer_addr));
5384 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5387 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5388 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5390 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5391 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5395 os_get_reltime(&wpa_s->p2p_auto_started);
5396 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5398 wpa_s->p2p_auto_started.sec,
5399 wpa_s->p2p_auto_started.usec);
5401 wpa_s->user_initiated_pd = 1;
5402 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5404 group_ssid, group_ssid_len) < 0)
5409 size = P2P_MAX_PREF_CHANNELS;
5410 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5411 go_intent == 15, pref_freq_list, &size);
5414 wpas_p2p_set_own_freq_preference(wpa_s,
5415 force_freq ? force_freq : pref_freq);
5417 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5419 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5421 if (wpa_s->create_p2p_iface) {
5422 /* Prepare to add a new interface for the group */
5423 iftype = WPA_IF_P2P_GROUP;
5424 if (go_intent == 15)
5425 iftype = WPA_IF_P2P_GO;
5426 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5427 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5428 "interface for the group");
5432 if_addr = wpa_s->pending_interface_addr;
5434 if (wpa_s->p2p_mgmt)
5435 if_addr = wpa_s->parent->own_addr;
5437 if_addr = wpa_s->own_addr;
5438 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5442 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5444 force_freq, persistent_group, ssid,
5450 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5451 go_intent, if_addr, force_freq,
5452 persistent_group, ssid, pref_freq) < 0) {
5453 if (wpa_s->create_p2p_iface)
5454 wpas_p2p_remove_pending_group_interface(wpa_s);
5462 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5463 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5464 * @freq: Frequency of the channel in MHz
5465 * @duration: Duration of the stay on the channel in milliseconds
5467 * This callback is called when the driver indicates that it has started the
5468 * requested remain-on-channel duration.
5470 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5471 unsigned int freq, unsigned int duration)
5473 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5475 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)",
5476 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5477 wpa_s->roc_waiting_drv_freq, freq, duration);
5478 if (wpa_s->off_channel_freq &&
5479 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5480 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5481 wpa_s->pending_listen_duration);
5482 wpa_s->pending_listen_freq = 0;
5484 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5485 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5491 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5493 /* Limit maximum Listen state time based on driver limitation. */
5494 if (timeout > wpa_s->max_remain_on_chan)
5495 timeout = wpa_s->max_remain_on_chan;
5497 return p2p_listen(wpa_s->global->p2p, timeout);
5502 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5503 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5504 * @freq: Frequency of the channel in MHz
5506 * This callback is called when the driver indicates that a remain-on-channel
5507 * operation has been completed, i.e., the duration on the requested channel
5510 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5513 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5514 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5515 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5516 wpas_p2p_listen_work_done(wpa_s);
5517 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5519 if (wpa_s->p2p_long_listen > 0)
5520 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5521 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5522 return; /* P2P module started a new operation */
5523 if (offchannel_pending_action_tx(wpa_s))
5525 if (wpa_s->p2p_long_listen > 0) {
5526 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5527 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5530 * When listen duration is over, stop listen & update p2p_state
5533 p2p_stop_listen(wpa_s->global->p2p);
5539 * wpas_p2p_group_remove - Remove a P2P group
5540 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5541 * @ifname: Network interface name of the group interface or "*" to remove all
5543 * Returns: 0 on success, -1 on failure
5545 * This function is used to remove a P2P group. This can be used to disconnect
5546 * from a group in which the local end is a P2P Client or to end a P2P Group in
5547 * case the local end is the Group Owner. If a virtual network interface was
5548 * created for this group, that interface will be removed. Otherwise, only the
5549 * configured P2P group network will be removed from the interface.
5551 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5553 struct wpa_global *global = wpa_s->global;
5554 struct wpa_supplicant *calling_wpa_s = wpa_s;
5556 if (os_strcmp(ifname, "*") == 0) {
5557 struct wpa_supplicant *prev;
5558 wpa_s = global->ifaces;
5561 wpa_s = wpa_s->next;
5562 if (prev->p2p_group_interface !=
5563 NOT_P2P_GROUP_INTERFACE ||
5564 (prev->current_ssid &&
5565 prev->current_ssid->p2p_group))
5566 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5571 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5572 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5576 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5580 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5584 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5585 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5586 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5589 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5590 &size, pref_freq_list);
5591 if (!res && size > 0) {
5593 while (wpas_p2p_disallowed_freq(wpa_s->global,
5594 pref_freq_list[i]) &&
5596 wpa_printf(MSG_DEBUG,
5597 "P2P: preferred_freq_list[%d]=%d is disallowed",
5598 i, pref_freq_list[i]);
5602 freq = pref_freq_list[i];
5603 wpa_printf(MSG_DEBUG,
5604 "P2P: Using preferred_freq_list[%d]=%d",
5607 wpa_printf(MSG_DEBUG,
5608 "P2P: All driver preferred frequencies are disallowed for P2P use");
5611 wpa_printf(MSG_DEBUG,
5612 "P2P: No preferred frequency list available");
5617 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5619 if (wpa_s->best_24_freq > 0 &&
5620 p2p_supported_freq_go(wpa_s->global->p2p,
5621 wpa_s->best_24_freq)) {
5622 freq = wpa_s->best_24_freq;
5623 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5624 "channel: %d MHz", freq);
5626 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5628 freq = 2412 + (r % 3) * 25;
5629 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5630 "channel: %d MHz", freq);
5635 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5637 if (wpa_s->best_5_freq > 0 &&
5638 p2p_supported_freq_go(wpa_s->global->p2p,
5639 wpa_s->best_5_freq)) {
5640 freq = wpa_s->best_5_freq;
5641 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5642 "channel: %d MHz", freq);
5644 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5646 freq = 5180 + (r % 4) * 20;
5647 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5648 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5649 "5 GHz channel for P2P group");
5652 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5653 "channel: %d MHz", freq);
5657 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5658 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5659 ieee80211_is_dfs(freq)) {
5661 * If freq is a DFS channel and DFS is offloaded to the
5662 * driver, allow P2P GO to use it.
5664 wpa_printf(MSG_DEBUG, "P2P: "
5665 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5669 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5670 "(%u MHz) is not supported for P2P uses",
5679 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5680 const struct p2p_channels *channels,
5683 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5684 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5685 freq_included(wpa_s, channels, freq))
5691 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5692 struct p2p_go_neg_results *params,
5693 const struct p2p_channels *channels)
5697 /* first try some random selection of the social channels */
5698 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5701 for (i = 0; i < 3; i++) {
5702 params->freq = 2412 + ((r + i) % 3) * 25;
5703 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5707 /* try all other channels in operating class 81 */
5708 for (i = 0; i < 11; i++) {
5709 params->freq = 2412 + i * 5;
5711 /* skip social channels; covered in the previous loop */
5712 if (params->freq == 2412 ||
5713 params->freq == 2437 ||
5714 params->freq == 2462)
5717 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5721 /* try all channels in operating class 115 */
5722 for (i = 0; i < 4; i++) {
5723 params->freq = 5180 + i * 20;
5724 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5725 freq_included(wpa_s, channels, params->freq) &&
5726 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5730 /* try all channels in operating class 124 */
5731 for (i = 0; i < 4; i++) {
5732 params->freq = 5745 + i * 20;
5733 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5734 freq_included(wpa_s, channels, params->freq) &&
5735 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5739 /* try social channel class 180 channel 2 */
5740 params->freq = 58320 + 1 * 2160;
5741 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5742 freq_included(wpa_s, channels, params->freq) &&
5743 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5746 /* try all channels in reg. class 180 */
5747 for (i = 0; i < 4; i++) {
5748 params->freq = 58320 + i * 2160;
5749 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5750 freq_included(wpa_s, channels, params->freq) &&
5751 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5756 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5759 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5764 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5765 struct p2p_go_neg_results *params,
5766 int freq, int vht_center_freq2, int ht40,
5767 int vht, int max_oper_chwidth,
5768 const struct p2p_channels *channels)
5770 struct wpa_used_freq_data *freqs;
5772 unsigned int num, i;
5773 int ignore_no_freqs = 0;
5775 os_memset(params, 0, sizeof(*params));
5776 params->role_go = 1;
5777 params->ht40 = ht40;
5779 params->max_oper_chwidth = max_oper_chwidth;
5780 params->vht_center_freq2 = vht_center_freq2;
5782 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5783 sizeof(struct wpa_used_freq_data));
5787 num = get_shared_radio_freqs_data(wpa_s, freqs,
5788 wpa_s->num_multichan_concurrent);
5790 if (wpa_s->current_ssid &&
5791 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5792 wpa_s->wpa_state == WPA_COMPLETED) {
5793 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5797 * If the frequency selection is done for an active P2P GO that
5798 * is not sharing a frequency, allow to select a new frequency
5799 * even if there are no unused frequencies as we are about to
5800 * move the P2P GO so its frequency can be re-used.
5802 for (i = 0; i < num; i++) {
5803 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5804 freqs[i].flags == 0) {
5805 ignore_no_freqs = 1;
5811 /* try using the forced freq */
5813 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5814 wpa_printf(MSG_DEBUG,
5815 "P2P: Forced GO freq %d MHz not accepted",
5820 for (i = 0; i < num; i++) {
5821 if (freqs[i].freq == freq) {
5822 wpa_printf(MSG_DEBUG,
5823 "P2P: forced freq (%d MHz) is also shared",
5825 params->freq = freq;
5830 if (!ignore_no_freqs &&
5831 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5832 wpa_printf(MSG_DEBUG,
5833 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5838 wpa_printf(MSG_DEBUG,
5839 "P2P: force GO freq (%d MHz) on a free channel",
5841 params->freq = freq;
5845 /* consider using one of the shared frequencies */
5847 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5848 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5849 wpa_printf(MSG_DEBUG,
5850 "P2P: Use shared freq (%d MHz) for GO",
5852 params->freq = cand;
5856 /* try using one of the shared freqs */
5857 for (i = 0; i < num; i++) {
5858 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5860 wpa_printf(MSG_DEBUG,
5861 "P2P: Use shared freq (%d MHz) for GO",
5863 params->freq = freqs[i].freq;
5869 if (!ignore_no_freqs &&
5870 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5871 wpa_printf(MSG_DEBUG,
5872 "P2P: Cannot force GO on any of the channels we are already using");
5876 /* try using the setting from the configuration file */
5877 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5878 wpa_s->conf->p2p_oper_channel >= 1 &&
5879 wpa_s->conf->p2p_oper_channel <= 11 &&
5880 wpas_p2p_supported_freq_go(
5882 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5883 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5884 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5885 "frequency %d MHz", params->freq);
5889 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5890 wpa_s->conf->p2p_oper_reg_class == 116 ||
5891 wpa_s->conf->p2p_oper_reg_class == 117 ||
5892 wpa_s->conf->p2p_oper_reg_class == 124 ||
5893 wpa_s->conf->p2p_oper_reg_class == 125 ||
5894 wpa_s->conf->p2p_oper_reg_class == 126 ||
5895 wpa_s->conf->p2p_oper_reg_class == 127) &&
5896 wpas_p2p_supported_freq_go(wpa_s, channels,
5898 5 * wpa_s->conf->p2p_oper_channel)) {
5899 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5900 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5901 "frequency %d MHz", params->freq);
5905 /* Try using best channels */
5906 if (wpa_s->conf->p2p_oper_channel == 0 &&
5907 wpa_s->best_overall_freq > 0 &&
5908 wpas_p2p_supported_freq_go(wpa_s, channels,
5909 wpa_s->best_overall_freq)) {
5910 params->freq = wpa_s->best_overall_freq;
5911 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5912 "channel %d MHz", params->freq);
5916 if (wpa_s->conf->p2p_oper_channel == 0 &&
5917 wpa_s->best_24_freq > 0 &&
5918 wpas_p2p_supported_freq_go(wpa_s, channels,
5919 wpa_s->best_24_freq)) {
5920 params->freq = wpa_s->best_24_freq;
5921 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5922 "channel %d MHz", params->freq);
5926 if (wpa_s->conf->p2p_oper_channel == 0 &&
5927 wpa_s->best_5_freq > 0 &&
5928 wpas_p2p_supported_freq_go(wpa_s, channels,
5929 wpa_s->best_5_freq)) {
5930 params->freq = wpa_s->best_5_freq;
5931 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5932 "channel %d MHz", params->freq);
5936 /* try using preferred channels */
5937 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5938 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5939 params->freq = cand;
5940 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5941 "channels", params->freq);
5945 /* Try using one of the group common freqs */
5946 if (wpa_s->p2p_group_common_freqs) {
5947 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5948 cand = wpa_s->p2p_group_common_freqs[i];
5949 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5950 params->freq = cand;
5951 wpa_printf(MSG_DEBUG,
5952 "P2P: Use freq %d MHz common with the peer",
5959 /* no preference, select some channel */
5960 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5962 if (params->freq == 0) {
5963 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5976 static struct wpa_supplicant *
5977 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5980 struct wpa_supplicant *group_wpa_s;
5982 if (!wpas_p2p_create_iface(wpa_s)) {
5983 if (wpa_s->p2p_mgmt) {
5985 * We may be called on the p2p_dev interface which
5986 * cannot be used for group operations, so always use
5987 * the primary interface.
5989 wpa_s->parent->p2pdev = wpa_s;
5990 wpa_s = wpa_s->parent;
5992 wpa_dbg(wpa_s, MSG_DEBUG,
5993 "P2P: Use primary interface for group operations");
5994 wpa_s->p2p_first_connection_timeout = 0;
5995 if (wpa_s != wpa_s->p2pdev)
5996 wpas_p2p_clone_config_dh(wpa_s, wpa_s->p2pdev);
6000 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
6001 WPA_IF_P2P_CLIENT) < 0) {
6002 wpa_msg_global(wpa_s, MSG_ERROR,
6003 "P2P: Failed to add group interface");
6006 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
6007 if (group_wpa_s == NULL) {
6008 wpa_msg_global(wpa_s, MSG_ERROR,
6009 "P2P: Failed to initialize group interface");
6010 wpas_p2p_remove_pending_group_interface(wpa_s);
6014 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6015 group_wpa_s->ifname);
6016 group_wpa_s->p2p_first_connection_timeout = 0;
6022 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6023 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6024 * @persistent_group: Whether to create a persistent group
6025 * @freq: Frequency for the group or 0 to indicate no hardcoding
6026 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6027 * @ht40: Start GO with 40 MHz channel width
6028 * @vht: Start GO with VHT support
6029 * @vht_chwidth: channel bandwidth for GO operating with VHT support
6030 * Returns: 0 on success, -1 on failure
6032 * This function creates a new P2P group with the local end as the Group Owner,
6033 * i.e., without using Group Owner Negotiation.
6035 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6036 int freq, int vht_center_freq2, int ht40, int vht,
6037 int max_oper_chwidth)
6039 struct p2p_go_neg_results params;
6041 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6044 os_free(wpa_s->global->add_psk);
6045 wpa_s->global->add_psk = NULL;
6047 /* Make sure we are not running find during connection establishment */
6048 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6049 wpas_p2p_stop_find_oper(wpa_s);
6051 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6055 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6056 ht40, vht, max_oper_chwidth, NULL))
6059 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
6060 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
6061 ieee80211_is_dfs(params.freq)) {
6063 * If freq is a DFS channel and DFS is offloaded to the
6064 * driver, allow P2P GO to use it.
6066 wpa_printf(MSG_DEBUG,
6067 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6068 __func__, params.freq);
6070 wpa_printf(MSG_DEBUG,
6071 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6076 p2p_go_params(wpa_s->global->p2p, ¶ms);
6077 params.persistent_group = persistent_group;
6079 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6082 wpas_start_wps_go(wpa_s, ¶ms, 0);
6088 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6089 struct wpa_ssid *params, int addr_allocated,
6090 int freq, int force_scan)
6092 struct wpa_ssid *ssid;
6094 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6098 os_get_reltime(&wpa_s->scan_min_time);
6099 wpa_s->p2p_last_4way_hs_fail = NULL;
6101 wpa_supplicant_ap_deinit(wpa_s);
6103 ssid = wpa_config_add_network(wpa_s->conf);
6106 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6107 wpa_config_set_network_defaults(ssid);
6108 ssid->temporary = 1;
6109 ssid->proto = WPA_PROTO_RSN;
6110 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
6111 ssid->group_cipher = WPA_CIPHER_CCMP;
6112 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6113 ssid->ssid = os_malloc(params->ssid_len);
6114 if (ssid->ssid == NULL) {
6115 wpa_config_remove_network(wpa_s->conf, ssid->id);
6118 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6119 ssid->ssid_len = params->ssid_len;
6120 ssid->p2p_group = 1;
6121 ssid->export_keys = 1;
6122 if (params->psk_set) {
6123 os_memcpy(ssid->psk, params->psk, 32);
6126 if (params->passphrase)
6127 ssid->passphrase = os_strdup(params->passphrase);
6129 wpa_s->show_group_started = 1;
6130 wpa_s->p2p_in_invitation = 1;
6131 wpa_s->p2p_invite_go_freq = freq;
6132 wpa_s->p2p_go_group_formation_completed = 0;
6133 wpa_s->global->p2p_group_formation = wpa_s;
6135 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6137 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6138 wpas_p2p_group_formation_timeout,
6139 wpa_s->p2pdev, NULL);
6140 wpa_supplicant_select_network(wpa_s, ssid);
6146 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6147 struct wpa_ssid *ssid, int addr_allocated,
6148 int force_freq, int neg_freq,
6149 int vht_center_freq2, int ht40,
6150 int vht, int max_oper_chwidth,
6151 const struct p2p_channels *channels,
6152 int connection_timeout, int force_scan)
6154 struct p2p_go_neg_results params;
6157 if (ssid->disabled != 2 || ssid->ssid == NULL)
6160 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6161 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6162 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6165 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6166 wpa_s->p2pdev, NULL)) {
6168 * This can happen if Invitation Response frame was lost
6169 * and the peer (GO of a persistent group) tries to
6170 * invite us again. Reschedule the timeout to avoid
6171 * terminating the wait for the connection too early
6172 * since we now know that the peer is still trying to
6173 * invite us instead of having already started the GO.
6175 wpa_printf(MSG_DEBUG,
6176 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6177 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6178 wpas_p2p_group_formation_timeout,
6179 wpa_s->p2pdev, NULL);
6184 os_free(wpa_s->global->add_psk);
6185 wpa_s->global->add_psk = NULL;
6187 /* Make sure we are not running find during connection establishment */
6188 wpas_p2p_stop_find_oper(wpa_s);
6190 wpa_s->p2p_fallback_to_go_neg = 0;
6192 if (ssid->mode == WPAS_MODE_P2P_GO) {
6193 if (force_freq > 0) {
6194 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6198 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6200 (freq > 0 && !freq_included(wpa_s, channels, freq)))
6203 } else if (ssid->mode == WPAS_MODE_INFRA) {
6205 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6206 struct os_reltime now;
6207 struct wpa_bss *bss =
6208 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6210 os_get_reltime(&now);
6212 !os_reltime_expired(&now, &bss->last_update, 5) &&
6213 freq_included(wpa_s, channels, bss->freq))
6219 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6225 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6226 ht40, vht, max_oper_chwidth, channels))
6230 params.psk_set = ssid->psk_set;
6232 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6233 if (ssid->passphrase) {
6234 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6235 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6236 "persistent group");
6239 os_strlcpy(params.passphrase, ssid->passphrase,
6240 sizeof(params.passphrase));
6242 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6243 params.ssid_len = ssid->ssid_len;
6244 params.persistent_group = 1;
6246 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6250 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6252 wpa_s->p2p_first_connection_timeout = connection_timeout;
6253 wpas_start_wps_go(wpa_s, ¶ms, 0);
6259 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6260 struct wpabuf *proberesp_ies)
6262 struct wpa_supplicant *wpa_s = ctx;
6263 if (wpa_s->ap_iface) {
6264 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6265 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6266 wpabuf_free(beacon_ies);
6267 wpabuf_free(proberesp_ies);
6271 wpabuf_free(hapd->p2p_beacon_ie);
6272 hapd->p2p_beacon_ie = beacon_ies;
6274 wpabuf_free(hapd->p2p_probe_resp_ie);
6275 hapd->p2p_probe_resp_ie = proberesp_ies;
6277 wpabuf_free(beacon_ies);
6278 wpabuf_free(proberesp_ies);
6280 wpa_supplicant_ap_update_beacon(wpa_s);
6284 static void wpas_p2p_idle_update(void *ctx, int idle)
6286 struct wpa_supplicant *wpa_s = ctx;
6287 if (!wpa_s->ap_iface)
6289 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6291 if (wpa_s->global->p2p_fail_on_wps_complete &&
6292 wpa_s->p2p_in_provisioning) {
6293 wpas_p2p_grpform_fail_after_wps(wpa_s);
6296 wpas_p2p_set_group_idle_timeout(wpa_s);
6298 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6302 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6303 struct wpa_ssid *ssid)
6305 struct p2p_group *group;
6306 struct p2p_group_config *cfg;
6308 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6311 cfg = os_zalloc(sizeof(*cfg));
6315 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6316 cfg->persistent_group = 2;
6317 else if (ssid->p2p_persistent_group)
6318 cfg->persistent_group = 1;
6319 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6320 if (wpa_s->max_stations &&
6321 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6322 cfg->max_clients = wpa_s->max_stations;
6324 cfg->max_clients = wpa_s->conf->max_num_sta;
6325 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6326 cfg->ssid_len = ssid->ssid_len;
6327 cfg->freq = ssid->frequency;
6328 cfg->cb_ctx = wpa_s;
6329 cfg->ie_update = wpas_p2p_ie_update;
6330 cfg->idle_update = wpas_p2p_idle_update;
6332 group = p2p_group_init(wpa_s->global->p2p, cfg);
6335 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6336 p2p_group_notif_formation_done(group);
6337 wpa_s->p2p_group = group;
6342 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6345 struct wpa_ssid *ssid = wpa_s->current_ssid;
6347 if (!wpa_s->p2p_in_provisioning) {
6348 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6349 "provisioning not in progress");
6353 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6354 u8 go_dev_addr[ETH_ALEN];
6355 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6356 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6358 /* Clear any stored provisioning info */
6359 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6362 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6364 wpa_s->p2p_go_group_formation_completed = 1;
6365 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6367 * Use a separate timeout for initial data connection to
6368 * complete to allow the group to be removed automatically if
6369 * something goes wrong in this step before the P2P group idle
6370 * timeout mechanism is taken into use.
6372 wpa_dbg(wpa_s, MSG_DEBUG,
6373 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6374 P2P_MAX_INITIAL_CONN_WAIT);
6375 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6376 wpas_p2p_group_formation_timeout,
6377 wpa_s->p2pdev, NULL);
6378 /* Complete group formation on successful data connection. */
6379 wpa_s->p2p_go_group_formation_completed = 0;
6382 * Use a separate timeout for initial data connection to
6383 * complete to allow the group to be removed automatically if
6384 * the client does not complete data connection successfully.
6386 wpa_dbg(wpa_s, MSG_DEBUG,
6387 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6388 P2P_MAX_INITIAL_CONN_WAIT_GO);
6389 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6390 wpas_p2p_group_formation_timeout,
6391 wpa_s->p2pdev, NULL);
6393 * Complete group formation on first successful data connection
6395 wpa_s->p2p_go_group_formation_completed = 0;
6397 if (wpa_s->global->p2p)
6398 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6399 wpas_group_formation_completed(wpa_s, 1, 0);
6403 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6404 struct wps_event_fail *fail)
6406 if (!wpa_s->p2p_in_provisioning) {
6407 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6408 "provisioning not in progress");
6412 if (wpa_s->go_params) {
6413 p2p_clear_provisioning_info(
6415 wpa_s->go_params->peer_device_addr);
6418 wpas_notify_p2p_wps_failed(wpa_s, fail);
6420 if (wpa_s == wpa_s->global->p2p_group_formation) {
6422 * Allow some time for the failed WPS negotiation exchange to
6423 * complete, but remove the group since group formation cannot
6424 * succeed after provisioning failure.
6426 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6427 wpa_s->global->p2p_fail_on_wps_complete = 1;
6428 eloop_deplete_timeout(0, 50000,
6429 wpas_p2p_group_formation_timeout,
6430 wpa_s->p2pdev, NULL);
6435 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6437 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6438 !wpa_s->p2p_in_provisioning)
6441 wpas_p2p_grpform_fail_after_wps(wpa_s);
6447 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6448 const char *config_method,
6449 enum wpas_p2p_prov_disc_use use,
6450 struct p2ps_provision *p2ps_prov)
6454 wpa_s->global->pending_p2ps_group = 0;
6455 wpa_s->global->pending_p2ps_group_freq = 0;
6456 wpa_s->p2p_fallback_to_go_neg = 0;
6457 wpa_s->pending_pd_use = NORMAL_PD;
6458 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6459 p2ps_prov->conncap = p2ps_group_capability(
6460 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6461 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6463 wpa_printf(MSG_DEBUG,
6464 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6465 __func__, p2ps_prov->conncap,
6466 p2ps_prov->adv_id, p2ps_prov->conncap,
6467 p2ps_prov->status, p2ps_prov->info);
6470 } else if (os_strncmp(config_method, "display", 7) == 0)
6471 config_methods = WPS_CONFIG_DISPLAY;
6472 else if (os_strncmp(config_method, "keypad", 6) == 0)
6473 config_methods = WPS_CONFIG_KEYPAD;
6474 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6475 os_strncmp(config_method, "pushbutton", 10) == 0)
6476 config_methods = WPS_CONFIG_PUSHBUTTON;
6478 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6483 if (use == WPAS_P2P_PD_AUTO) {
6484 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6485 wpa_s->pending_pd_config_methods = config_methods;
6486 wpa_s->p2p_auto_pd = 1;
6487 wpa_s->p2p_auto_join = 0;
6488 wpa_s->pending_pd_before_join = 0;
6489 wpa_s->auto_pd_scan_retry = 0;
6490 wpas_p2p_stop_find(wpa_s);
6491 wpa_s->p2p_join_scan_count = 0;
6492 os_get_reltime(&wpa_s->p2p_auto_started);
6493 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6494 wpa_s->p2p_auto_started.sec,
6495 wpa_s->p2p_auto_started.usec);
6496 wpas_p2p_join_scan(wpa_s, NULL);
6500 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6505 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6506 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6511 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6514 return p2p_scan_result_text(ies, ies_len, buf, end);
6518 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6520 if (!offchannel_pending_action_tx(wpa_s))
6523 if (wpa_s->p2p_send_action_work) {
6524 wpas_p2p_free_send_action_work(wpa_s);
6525 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
6527 offchannel_send_action_done(wpa_s);
6530 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6531 "operation request");
6532 offchannel_clear_pending_action_tx(wpa_s);
6536 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6537 enum p2p_discovery_type type,
6538 unsigned int num_req_dev_types, const u8 *req_dev_types,
6539 const u8 *dev_id, unsigned int search_delay,
6540 u8 seek_cnt, const char **seek_string, int freq)
6542 wpas_p2p_clear_pending_action_tx(wpa_s);
6543 wpa_s->p2p_long_listen = 0;
6545 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6546 wpa_s->p2p_in_provisioning)
6549 wpa_supplicant_cancel_sched_scan(wpa_s);
6551 return p2p_find(wpa_s->global->p2p, timeout, type,
6552 num_req_dev_types, req_dev_types, dev_id,
6553 search_delay, seek_cnt, seek_string, freq);
6557 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6558 struct wpa_scan_results *scan_res)
6560 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6562 if (wpa_s->p2p_scan_work) {
6563 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6564 wpa_s->p2p_scan_work = NULL;
6565 radio_work_done(work);
6568 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6572 * Indicate that results have been processed so that the P2P module can
6573 * continue pending tasks.
6575 p2p_scan_res_handled(wpa_s->global->p2p);
6579 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6581 wpas_p2p_clear_pending_action_tx(wpa_s);
6582 wpa_s->p2p_long_listen = 0;
6583 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6584 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6586 if (wpa_s->global->p2p)
6587 p2p_stop_find(wpa_s->global->p2p);
6589 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6590 wpa_printf(MSG_DEBUG,
6591 "P2P: Do not consider the scan results after stop_find");
6592 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6597 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6599 wpas_p2p_stop_find_oper(wpa_s);
6600 if (!wpa_s->global->pending_group_iface_for_p2ps)
6601 wpas_p2p_remove_pending_group_interface(wpa_s);
6605 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6607 struct wpa_supplicant *wpa_s = eloop_ctx;
6608 wpa_s->p2p_long_listen = 0;
6612 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6616 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6619 wpa_supplicant_cancel_sched_scan(wpa_s);
6620 wpas_p2p_clear_pending_action_tx(wpa_s);
6624 * This is a request for unlimited Listen state. However, at
6625 * least for now, this is mapped to a Listen state for one
6630 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6631 wpa_s->p2p_long_listen = 0;
6634 * Stop previous find/listen operation to avoid trying to request a new
6635 * remain-on-channel operation while the driver is still running the
6638 if (wpa_s->global->p2p)
6639 p2p_stop_find(wpa_s->global->p2p);
6641 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6642 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6643 wpa_s->p2p_long_listen = timeout * 1000;
6644 eloop_register_timeout(timeout, 0,
6645 wpas_p2p_long_listen_timeout,
6653 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6654 u8 *buf, size_t len, int p2p_group)
6656 struct wpabuf *p2p_ie;
6659 if (wpa_s->global->p2p_disabled)
6662 * Advertize mandatory cross connection capability even on
6663 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6665 if (wpa_s->conf->p2p_disabled && p2p_group)
6667 if (wpa_s->global->p2p == NULL)
6672 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6673 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6675 wpabuf_free(p2p_ie);
6681 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6682 const u8 *dst, const u8 *bssid,
6683 const u8 *ie, size_t ie_len,
6684 unsigned int rx_freq, int ssi_signal)
6686 if (wpa_s->global->p2p_disabled)
6688 if (wpa_s->global->p2p == NULL)
6691 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6692 ie, ie_len, rx_freq)) {
6693 case P2P_PREQ_NOT_P2P:
6694 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6697 case P2P_PREQ_MALFORMED:
6698 case P2P_PREQ_NOT_LISTEN:
6699 case P2P_PREQ_NOT_PROCESSED:
6700 default: /* make gcc happy */
6702 case P2P_PREQ_PROCESSED:
6708 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6709 const u8 *sa, const u8 *bssid,
6710 u8 category, const u8 *data, size_t len, int freq)
6712 if (wpa_s->global->p2p_disabled)
6714 if (wpa_s->global->p2p == NULL)
6717 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6722 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6726 if (wpa_s->global->p2p_disabled)
6728 if (wpa_s->global->p2p == NULL)
6731 bands = wpas_get_bands(wpa_s, NULL);
6732 p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
6736 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6738 p2p_group_deinit(wpa_s->p2p_group);
6739 wpa_s->p2p_group = NULL;
6741 wpa_s->ap_configured_cb = NULL;
6742 wpa_s->ap_configured_cb_ctx = NULL;
6743 wpa_s->ap_configured_cb_data = NULL;
6744 wpa_s->connect_without_scan = NULL;
6748 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6750 wpa_s->p2p_long_listen = 0;
6752 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6755 return p2p_reject(wpa_s->global->p2p, addr);
6759 /* Invite to reinvoke a persistent group */
6760 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6761 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6762 int vht_center_freq2, int ht40, int vht, int max_chwidth,
6765 enum p2p_invite_role role;
6769 int no_pref_freq_given = pref_freq == 0;
6770 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6772 wpa_s->global->p2p_invite_group = NULL;
6774 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6776 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6778 wpa_s->p2p_persistent_go_freq = freq;
6779 wpa_s->p2p_go_ht40 = !!ht40;
6780 wpa_s->p2p_go_vht = !!vht;
6781 wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6782 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6783 if (ssid->mode == WPAS_MODE_P2P_GO) {
6784 role = P2P_INVITE_ROLE_GO;
6785 if (peer_addr == NULL) {
6786 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6787 "address in invitation command");
6790 if (wpas_p2p_create_iface(wpa_s)) {
6791 if (wpas_p2p_add_group_interface(wpa_s,
6792 WPA_IF_P2P_GO) < 0) {
6793 wpa_printf(MSG_ERROR, "P2P: Failed to "
6794 "allocate a new interface for the "
6798 bssid = wpa_s->pending_interface_addr;
6799 } else if (wpa_s->p2p_mgmt)
6800 bssid = wpa_s->parent->own_addr;
6802 bssid = wpa_s->own_addr;
6804 role = P2P_INVITE_ROLE_CLIENT;
6805 peer_addr = ssid->bssid;
6807 wpa_s->pending_invite_ssid_id = ssid->id;
6809 size = P2P_MAX_PREF_CHANNELS;
6810 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6811 role == P2P_INVITE_ROLE_GO,
6812 pref_freq_list, &size);
6816 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6819 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6821 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6822 no_pref_freq_given && pref_freq > 0 &&
6823 wpa_s->num_multichan_concurrent > 1 &&
6824 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6825 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6831 * Stop any find/listen operations before invitation and possibly
6832 * connection establishment.
6834 wpas_p2p_stop_find_oper(wpa_s);
6836 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6837 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6842 /* Invite to join an active group */
6843 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6844 const u8 *peer_addr, const u8 *go_dev_addr)
6846 struct wpa_global *global = wpa_s->global;
6847 enum p2p_invite_role role;
6849 struct wpa_ssid *ssid;
6851 int freq = 0, force_freq = 0, pref_freq = 0;
6853 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6855 wpa_s->p2p_persistent_go_freq = 0;
6856 wpa_s->p2p_go_ht40 = 0;
6857 wpa_s->p2p_go_vht = 0;
6858 wpa_s->p2p_go_vht_center_freq2 = 0;
6859 wpa_s->p2p_go_max_oper_chwidth = 0;
6861 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6862 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6865 if (wpa_s == NULL) {
6866 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6870 ssid = wpa_s->current_ssid;
6872 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6877 wpa_s->global->p2p_invite_group = wpa_s;
6878 persistent = ssid->p2p_persistent_group &&
6879 wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
6880 ssid->ssid, ssid->ssid_len);
6882 if (ssid->mode == WPAS_MODE_P2P_GO) {
6883 role = P2P_INVITE_ROLE_ACTIVE_GO;
6884 bssid = wpa_s->own_addr;
6885 if (go_dev_addr == NULL)
6886 go_dev_addr = wpa_s->global->p2p_dev_addr;
6887 freq = ssid->frequency;
6889 role = P2P_INVITE_ROLE_CLIENT;
6890 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6891 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6892 "invite to current group");
6895 bssid = wpa_s->bssid;
6896 if (go_dev_addr == NULL &&
6897 !is_zero_ether_addr(wpa_s->go_dev_addr))
6898 go_dev_addr = wpa_s->go_dev_addr;
6899 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6900 (int) wpa_s->assoc_freq;
6902 wpa_s->p2pdev->pending_invite_ssid_id = -1;
6904 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6907 size = P2P_MAX_PREF_CHANNELS;
6908 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6909 role == P2P_INVITE_ROLE_ACTIVE_GO,
6910 pref_freq_list, &size);
6913 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6915 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6916 ssid->ssid, ssid->ssid_len, force_freq,
6917 go_dev_addr, persistent, pref_freq, -1);
6921 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6923 struct wpa_ssid *ssid = wpa_s->current_ssid;
6924 u8 go_dev_addr[ETH_ALEN];
6925 int network_id = -1;
6931 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6932 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6933 wpa_s->p2pdev, NULL);
6936 if (!wpa_s->show_group_started || !ssid)
6939 wpa_s->show_group_started = 0;
6940 if (!wpa_s->p2p_go_group_formation_completed &&
6941 wpa_s->global->p2p_group_formation == wpa_s) {
6942 wpa_dbg(wpa_s, MSG_DEBUG,
6943 "P2P: Marking group formation completed on client on data connection");
6944 wpa_s->p2p_go_group_formation_completed = 1;
6945 wpa_s->global->p2p_group_formation = NULL;
6946 wpa_s->p2p_in_provisioning = 0;
6947 wpa_s->p2p_in_invitation = 0;
6950 os_memset(go_dev_addr, 0, ETH_ALEN);
6951 if (ssid->bssid_set)
6952 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6953 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6955 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6957 if (wpa_s->global->p2p_group_formation == wpa_s)
6958 wpa_s->global->p2p_group_formation = NULL;
6960 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6961 (int) wpa_s->assoc_freq;
6964 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6967 res = os_snprintf(ip_addr, sizeof(ip_addr),
6968 " ip_addr=%u.%u.%u.%u "
6969 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6970 ip[0], ip[1], ip[2], ip[3],
6971 ip[4], ip[5], ip[6], ip[7],
6972 ip[8], ip[9], ip[10], ip[11]);
6973 if (os_snprintf_error(sizeof(ip_addr), res))
6977 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6978 ssid->passphrase == NULL && ssid->psk_set ?
6980 ssid->passphrase, go_dev_addr, persistent,
6984 network_id = wpas_p2p_store_persistent_group(wpa_s->p2pdev,
6987 network_id = ssid->id;
6988 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6992 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6993 u32 interval1, u32 duration2, u32 interval2)
6997 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7000 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
7001 wpa_s->current_ssid == NULL ||
7002 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
7005 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
7006 wpa_s->own_addr, wpa_s->assoc_freq,
7007 duration1, interval1, duration2, interval2);
7009 wpa_s->waiting_presence_resp = 1;
7015 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
7016 unsigned int interval)
7018 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7021 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7025 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7027 if (wpa_s->current_ssid == NULL) {
7029 * current_ssid can be cleared when P2P client interface gets
7030 * disconnected, so assume this interface was used as P2P
7035 return wpa_s->current_ssid->p2p_group &&
7036 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7040 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7042 struct wpa_supplicant *wpa_s = eloop_ctx;
7044 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7045 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7050 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7052 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7056 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7060 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7061 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7063 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7066 timeout = wpa_s->conf->p2p_group_idle;
7067 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7068 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7069 timeout = P2P_MAX_CLIENT_IDLE;
7075 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7076 timeout = 0; /* special client mode no-timeout */
7081 if (wpa_s->p2p_in_provisioning) {
7083 * Use the normal group formation timeout during the
7084 * provisioning phase to avoid terminating this process too
7085 * early due to group idle timeout.
7087 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7088 "during provisioning");
7092 if (wpa_s->show_group_started) {
7094 * Use the normal group formation timeout between the end of
7095 * the provisioning phase and completion of 4-way handshake to
7096 * avoid terminating this process too early due to group idle
7099 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7100 "while waiting for initial 4-way handshake to "
7105 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7107 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7112 /* Returns 1 if the interface was removed */
7113 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7114 u16 reason_code, const u8 *ie, size_t ie_len,
7115 int locally_generated)
7117 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7120 if (!locally_generated)
7121 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7124 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7125 wpa_s->current_ssid &&
7126 wpa_s->current_ssid->p2p_group &&
7127 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7128 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7129 "session is ending");
7130 if (wpas_p2p_group_delete(wpa_s,
7131 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7140 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7141 u16 reason_code, const u8 *ie, size_t ie_len,
7142 int locally_generated)
7144 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7147 if (!locally_generated)
7148 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7153 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7155 struct p2p_data *p2p = wpa_s->global->p2p;
7160 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7163 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7164 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7166 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7167 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7170 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7171 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7173 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7174 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7176 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7177 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7178 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7179 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7180 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7183 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7184 p2p_set_sec_dev_types(p2p,
7185 (void *) wpa_s->conf->sec_device_type,
7186 wpa_s->conf->num_sec_device_types);
7188 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7190 p2p_remove_wps_vendor_extensions(p2p);
7191 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7192 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7194 p2p_add_wps_vendor_extension(
7195 p2p, wpa_s->conf->wps_vendor_ext[i]);
7199 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7200 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7202 country[0] = wpa_s->conf->country[0];
7203 country[1] = wpa_s->conf->country[1];
7205 p2p_set_country(p2p, country);
7208 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7209 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7210 wpa_s->conf->p2p_ssid_postfix ?
7211 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7215 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7216 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7218 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7219 u8 reg_class, channel;
7224 if (wpa_s->conf->p2p_listen_reg_class &&
7225 wpa_s->conf->p2p_listen_channel) {
7226 reg_class = wpa_s->conf->p2p_listen_reg_class;
7227 channel = wpa_s->conf->p2p_listen_channel;
7232 * Pick one of the social channels randomly as the
7235 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7238 channel = 1 + (r % 3) * 5;
7241 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7244 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7247 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7248 u8 op_reg_class, op_channel, cfg_op_channel;
7251 if (wpa_s->conf->p2p_oper_reg_class &&
7252 wpa_s->conf->p2p_oper_channel) {
7253 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7254 op_channel = wpa_s->conf->p2p_oper_channel;
7259 * Use random operation channel from (1, 6, 11)
7260 *if no other preference is indicated.
7262 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7265 op_channel = 1 + (r % 3) * 5;
7268 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7271 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7275 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7276 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7277 wpa_s->conf->p2p_pref_chan) < 0) {
7278 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7282 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7283 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7288 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7289 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7293 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7296 if (!wpa_s->ap_iface)
7298 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7303 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7305 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7308 wpa_s->global->cross_connection = enabled;
7309 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7312 struct wpa_supplicant *iface;
7314 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7316 if (iface->cross_connect_enabled == 0)
7319 iface->cross_connect_enabled = 0;
7320 iface->cross_connect_in_use = 0;
7321 wpa_msg_global(iface->p2pdev, MSG_INFO,
7322 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7324 iface->cross_connect_uplink);
7332 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7334 struct wpa_supplicant *iface;
7336 if (!uplink->global->cross_connection)
7339 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7340 if (!iface->cross_connect_enabled)
7342 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7345 if (iface->ap_iface == NULL)
7347 if (iface->cross_connect_in_use)
7350 iface->cross_connect_in_use = 1;
7351 wpa_msg_global(iface->p2pdev, MSG_INFO,
7352 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7353 iface->ifname, iface->cross_connect_uplink);
7358 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7360 struct wpa_supplicant *iface;
7362 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7363 if (!iface->cross_connect_enabled)
7365 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7368 if (!iface->cross_connect_in_use)
7371 wpa_msg_global(iface->p2pdev, MSG_INFO,
7372 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7373 iface->ifname, iface->cross_connect_uplink);
7374 iface->cross_connect_in_use = 0;
7379 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7381 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7382 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7383 wpa_s->cross_connect_disallowed)
7384 wpas_p2p_disable_cross_connect(wpa_s);
7386 wpas_p2p_enable_cross_connect(wpa_s);
7387 if (!wpa_s->ap_iface &&
7388 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7389 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7393 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7395 wpas_p2p_disable_cross_connect(wpa_s);
7396 if (!wpa_s->ap_iface &&
7397 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7399 wpas_p2p_set_group_idle_timeout(wpa_s);
7403 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7405 struct wpa_supplicant *iface;
7407 if (!wpa_s->global->cross_connection)
7410 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7413 if (iface->drv_flags &
7414 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7416 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7417 iface != wpa_s->parent)
7420 wpa_s->cross_connect_enabled = 1;
7421 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7422 sizeof(wpa_s->cross_connect_uplink));
7423 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7424 "%s to %s whenever uplink is available",
7425 wpa_s->ifname, wpa_s->cross_connect_uplink);
7427 if (iface->ap_iface || iface->current_ssid == NULL ||
7428 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7429 iface->cross_connect_disallowed ||
7430 iface->wpa_state != WPA_COMPLETED)
7433 wpa_s->cross_connect_in_use = 1;
7434 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
7435 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7436 wpa_s->ifname, wpa_s->cross_connect_uplink);
7442 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7444 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7445 !wpa_s->p2p_in_provisioning)
7446 return 0; /* not P2P client operation */
7448 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7450 if (wpa_s != wpa_s->p2pdev)
7451 wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
7452 wpas_p2p_group_formation_failed(wpa_s, 0);
7457 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7459 struct wpa_supplicant *wpa_s = eloop_ctx;
7460 wpas_p2p_notif_pbc_overlap(wpa_s);
7464 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7465 enum wpas_p2p_channel_update_trig trig)
7467 struct p2p_channels chan, cli_chan;
7468 struct wpa_used_freq_data *freqs = NULL;
7469 unsigned int num = wpa_s->num_multichan_concurrent;
7471 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7474 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7478 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7480 os_memset(&chan, 0, sizeof(chan));
7481 os_memset(&cli_chan, 0, sizeof(cli_chan));
7482 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7483 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7488 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7490 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7493 * The used frequencies map changed, so it is possible that a GO is
7494 * using a channel that is no longer valid for P2P use. It is also
7495 * possible that due to policy consideration, it would be preferable to
7496 * move it to a frequency already used by other station interfaces.
7498 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7504 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7505 struct wpa_scan_results *scan_res)
7507 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7511 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7513 struct wpa_global *global = wpa_s->global;
7517 if (global->p2p == NULL)
7520 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7522 if (wpa_s->pending_interface_name[0] &&
7523 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7526 peer = p2p_get_go_neg_peer(global->p2p);
7528 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7529 MACSTR, MAC2STR(peer));
7530 p2p_unauthorize(global->p2p, peer);
7534 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7535 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7536 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7540 if (wpa_s->pending_pd_before_join) {
7541 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7542 wpa_s->pending_pd_before_join = 0;
7546 wpas_p2p_stop_find(wpa_s);
7548 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7549 if (wpa_s == global->p2p_group_formation &&
7550 (wpa_s->p2p_in_provisioning ||
7551 wpa_s->parent->pending_interface_type ==
7552 WPA_IF_P2P_CLIENT)) {
7553 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7554 "formation found - cancelling",
7557 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7558 wpa_s->p2pdev, NULL);
7559 if (wpa_s->p2p_in_provisioning) {
7560 wpas_group_formation_completed(wpa_s, 0, 0);
7563 wpas_p2p_group_delete(wpa_s,
7564 P2P_GROUP_REMOVAL_REQUESTED);
7566 } else if (wpa_s->p2p_in_invitation) {
7567 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7570 wpas_p2p_group_formation_failed(wpa_s, 0);
7576 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7584 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7586 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7589 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7590 "being available anymore");
7591 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7595 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7596 int freq_24, int freq_5, int freq_overall)
7598 struct p2p_data *p2p = wpa_s->global->p2p;
7601 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7605 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7608 struct p2p_data *p2p = wpa_s->global->p2p;
7613 if (hwaddr_aton(addr, peer))
7616 return p2p_unauthorize(p2p, peer);
7621 * wpas_p2p_disconnect - Disconnect from a P2P Group
7622 * @wpa_s: Pointer to wpa_supplicant data
7623 * Returns: 0 on success, -1 on failure
7625 * This can be used to disconnect from a group in which the local end is a P2P
7626 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7627 * virtual network interface was created for this group, that interface will be
7628 * removed. Otherwise, only the configured P2P group network will be removed
7629 * from the interface.
7631 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7637 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7642 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7646 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7649 ret = p2p_in_progress(wpa_s->global->p2p);
7652 * Check whether there is an ongoing WPS provisioning step (or
7653 * other parts of group formation) on another interface since
7654 * p2p_in_progress() does not report this to avoid issues for
7655 * scans during such provisioning step.
7657 if (wpa_s->global->p2p_group_formation &&
7658 wpa_s->global->p2p_group_formation != wpa_s) {
7659 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7660 "in group formation",
7661 wpa_s->global->p2p_group_formation->ifname);
7666 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7667 struct os_reltime now;
7668 os_get_reltime(&now);
7669 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7670 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7671 /* Wait for the first client has expired */
7672 wpa_s->global->p2p_go_wait_client.sec = 0;
7674 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7683 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7684 struct wpa_ssid *ssid)
7686 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7687 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7688 wpa_s->p2pdev, NULL) > 0) {
7690 * Remove the network by scheduling the group formation
7691 * timeout to happen immediately. The teardown code
7692 * needs to be scheduled to run asynch later so that we
7693 * don't delete data from under ourselves unexpectedly.
7694 * Calling wpas_p2p_group_formation_timeout directly
7695 * causes a series of crashes in WPS failure scenarios.
7697 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7698 "P2P group network getting removed");
7699 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7700 wpa_s->p2pdev, NULL);
7705 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7706 const u8 *addr, const u8 *ssid,
7712 for (s = wpa_s->conf->ssid; s; s = s->next) {
7713 if (s->disabled != 2)
7716 (ssid_len != s->ssid_len ||
7717 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7720 if (s->mode == WPAS_MODE_P2P_GO)
7724 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7725 return s; /* peer is GO in the persistent group */
7726 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7728 for (i = 0; i < s->num_p2p_clients; i++) {
7729 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7730 addr, ETH_ALEN) == 0)
7731 return s; /* peer is P2P client in persistent
7740 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7743 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7744 wpa_s->p2pdev, NULL) > 0) {
7746 * This can happen if WPS provisioning step is not terminated
7747 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7748 * peer was able to connect, there is no need to time out group
7749 * formation after this, though. In addition, this is used with
7750 * the initial connection wait on the GO as a separate formation
7751 * timeout and as such, expected to be hit after the initial WPS
7752 * provisioning step.
7754 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7756 if (!wpa_s->p2p_go_group_formation_completed &&
7757 !wpa_s->group_formation_reported) {
7759 * GO has not yet notified group formation success since
7760 * the WPS step was not completed cleanly. Do that
7761 * notification now since the P2P Client was able to
7762 * connect and as such, must have received the
7763 * credential from the WPS step.
7765 if (wpa_s->global->p2p)
7766 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7767 wpas_group_formation_completed(wpa_s, 1, 0);
7770 if (!wpa_s->p2p_go_group_formation_completed) {
7771 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7772 wpa_s->p2p_go_group_formation_completed = 1;
7773 wpa_s->global->p2p_group_formation = NULL;
7774 wpa_s->p2p_in_provisioning = 0;
7775 wpa_s->p2p_in_invitation = 0;
7777 wpa_s->global->p2p_go_wait_client.sec = 0;
7780 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7784 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7787 struct wpa_supplicant *group = wpa_s;
7790 if (wpa_s->global->p2p_group_formation)
7791 group = wpa_s->global->p2p_group_formation;
7792 wpa_s = wpa_s->global->p2p_init_wpa_s;
7793 offchannel_send_action_done(wpa_s);
7795 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7796 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7797 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7798 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7799 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7800 wpa_s->p2p_go_vht_center_freq2,
7801 wpa_s->p2p_persistent_id,
7802 wpa_s->p2p_pd_before_go_neg,
7805 wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7810 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7814 if (!wpa_s->p2p_fallback_to_go_neg ||
7815 wpa_s->p2p_in_provisioning <= 5)
7818 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7819 return 0; /* peer operating as a GO */
7821 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7822 "fallback to GO Negotiation");
7823 wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7824 "reason=GO-not-found");
7825 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7827 return res == 1 ? 2 : 1;
7831 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7833 struct wpa_supplicant *ifs;
7835 if (wpa_s->wpa_state > WPA_SCANNING) {
7836 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7837 "concurrent operation",
7838 wpa_s->conf->p2p_search_delay);
7839 return wpa_s->conf->p2p_search_delay;
7842 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7844 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7845 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7846 "delay due to concurrent operation on "
7848 wpa_s->conf->p2p_search_delay,
7850 return wpa_s->conf->p2p_search_delay;
7858 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7859 struct wpa_ssid *s, const u8 *addr,
7862 struct psk_list_entry *psk, *tmp;
7865 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7867 if ((iface_addr && !psk->p2p &&
7868 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7869 (!iface_addr && psk->p2p &&
7870 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7871 wpa_dbg(wpa_s, MSG_DEBUG,
7872 "P2P: Remove persistent group PSK list entry for "
7874 MAC2STR(psk->addr), psk->p2p);
7875 dl_list_del(&psk->list);
7885 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7886 const u8 *p2p_dev_addr,
7887 const u8 *psk, size_t psk_len)
7889 struct wpa_ssid *ssid = wpa_s->current_ssid;
7890 struct wpa_ssid *persistent;
7891 struct psk_list_entry *p, *last;
7893 if (psk_len != sizeof(p->psk))
7897 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7898 " p2p_dev_addr=" MACSTR,
7899 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7900 if (is_zero_ether_addr(p2p_dev_addr))
7901 p2p_dev_addr = NULL;
7903 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7907 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7908 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7909 /* To be added to persistent group once created */
7910 if (wpa_s->global->add_psk == NULL) {
7911 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7912 if (wpa_s->global->add_psk == NULL)
7915 p = wpa_s->global->add_psk;
7918 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7921 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7923 os_memcpy(p->psk, psk, psk_len);
7927 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7928 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7932 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
7935 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7939 p = os_zalloc(sizeof(*p));
7944 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7947 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7949 os_memcpy(p->psk, psk, psk_len);
7951 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7952 (last = dl_list_last(&persistent->psk_list,
7953 struct psk_list_entry, list))) {
7954 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7955 MACSTR " (p2p=%u) to make room for a new one",
7956 MAC2STR(last->addr), last->p2p);
7957 dl_list_del(&last->list);
7961 wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
7962 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7963 p2p_dev_addr == NULL);
7965 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7966 MACSTR, MAC2STR(p2p_dev_addr));
7968 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7971 dl_list_add(&persistent->psk_list, &p->list);
7973 if (wpa_s->p2pdev->conf->update_config &&
7974 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
7975 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7979 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7980 struct wpa_ssid *s, const u8 *addr,
7985 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7986 if (res > 0 && wpa_s->conf->update_config &&
7987 wpa_config_write(wpa_s->confname, wpa_s->conf))
7988 wpa_dbg(wpa_s, MSG_DEBUG,
7989 "P2P: Failed to update configuration");
7993 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7994 const u8 *peer, int iface_addr)
7996 struct hostapd_data *hapd;
7997 struct hostapd_wpa_psk *psk, *prev, *rem;
7998 struct sta_info *sta;
8000 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
8001 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
8004 /* Remove per-station PSK entry */
8005 hapd = wpa_s->ap_iface->bss[0];
8007 psk = hapd->conf->ssid.wpa_psk;
8009 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
8011 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
8012 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
8013 MACSTR " iface_addr=%d",
8014 MAC2STR(peer), iface_addr);
8016 prev->next = psk->next;
8018 hapd->conf->ssid.wpa_psk = psk->next;
8028 /* Disconnect from group */
8030 sta = ap_get_sta(hapd, peer);
8032 sta = ap_get_sta_p2p(hapd, peer);
8034 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8035 " (iface_addr=%d) from group",
8036 MAC2STR(peer), iface_addr);
8037 hostapd_drv_sta_deauth(hapd, sta->addr,
8038 WLAN_REASON_DEAUTH_LEAVING);
8039 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8044 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8048 struct wpa_supplicant *w;
8049 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
8051 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8053 /* Remove from any persistent group */
8054 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8055 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8058 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8059 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8062 /* Remove from any operating group */
8063 for (w = wpa_s->global->ifaces; w; w = w->next)
8064 wpas_p2p_remove_client_go(w, peer, iface_addr);
8068 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8070 struct wpa_supplicant *wpa_s = eloop_ctx;
8071 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8075 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8077 struct wpa_supplicant *wpa_s = eloop_ctx;
8079 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8080 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8084 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8085 struct wpa_ssid *ssid)
8087 struct wpa_supplicant *iface;
8089 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8090 if (!iface->current_ssid ||
8091 iface->current_ssid->frequency == freq ||
8092 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8093 !iface->current_ssid->p2p_group))
8096 /* Remove the connection with least priority */
8097 if (!wpas_is_p2p_prioritized(iface)) {
8098 /* STA connection has priority over existing
8099 * P2P connection, so remove the interface. */
8100 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8101 eloop_register_timeout(0, 0,
8102 wpas_p2p_group_freq_conflict,
8104 /* If connection in progress is P2P connection, do not
8105 * proceed for the connection. */
8111 /* P2P connection has priority, disable the STA network
8113 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8115 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8116 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8117 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8119 /* If P2P connection is in progress, continue
8132 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8134 struct wpa_ssid *ssid = wpa_s->current_ssid;
8136 if (ssid == NULL || !ssid->p2p_group)
8139 if (wpa_s->p2p_last_4way_hs_fail &&
8140 wpa_s->p2p_last_4way_hs_fail == ssid) {
8141 u8 go_dev_addr[ETH_ALEN];
8142 struct wpa_ssid *persistent;
8144 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8146 ssid->ssid_len) <= 0) {
8147 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8151 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8152 MACSTR, MAC2STR(go_dev_addr));
8153 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
8156 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8157 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8160 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
8161 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8164 wpa_s->p2p_last_4way_hs_fail = NULL;
8166 * Remove the group from a timeout to avoid issues with caller
8167 * continuing to use the interface if this is on a P2P group
8170 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8175 wpa_s->p2p_last_4way_hs_fail = ssid;
8180 #ifdef CONFIG_WPS_NFC
8182 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8190 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8194 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8195 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8202 wpabuf_put_be16(ret, wsc_len);
8204 wpabuf_put_buf(ret, wsc);
8205 wpabuf_put_be16(ret, wpabuf_len(p2p));
8206 wpabuf_put_buf(ret, p2p);
8210 wpa_hexdump_buf(MSG_DEBUG,
8211 "P2P: Generated NFC connection handover message", ret);
8215 tmp = ndef_build_p2p(ret);
8218 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8228 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8229 struct wpa_ssid **ssid, u8 *go_dev_addr)
8231 struct wpa_supplicant *iface;
8234 os_memset(go_dev_addr, 0, ETH_ALEN);
8237 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8238 if (iface->wpa_state < WPA_ASSOCIATING ||
8239 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8240 !iface->current_ssid->p2p_group ||
8241 iface->current_ssid->mode != WPAS_MODE_INFRA)
8244 *ssid = iface->current_ssid;
8246 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8247 return iface->assoc_freq;
8253 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8256 struct wpabuf *wsc, *p2p;
8257 struct wpa_ssid *ssid;
8258 u8 go_dev_addr[ETH_ALEN];
8259 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8261 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8262 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8266 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8267 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8268 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8269 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8273 if (cli_freq == 0) {
8274 wsc = wps_build_nfc_handover_req_p2p(
8275 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8278 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8279 go_dev_addr, ssid ? ssid->ssid : NULL,
8280 ssid ? ssid->ssid_len : 0);
8282 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8286 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8289 struct wpabuf *wsc, *p2p;
8290 struct wpa_ssid *ssid;
8291 u8 go_dev_addr[ETH_ALEN];
8292 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8294 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8297 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8298 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8299 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8302 if (cli_freq == 0) {
8303 wsc = wps_build_nfc_handover_sel_p2p(
8305 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8306 DEV_PW_NFC_CONNECTION_HANDOVER,
8307 wpa_s->conf->wps_nfc_dh_pubkey,
8308 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8311 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8312 go_dev_addr, ssid ? ssid->ssid : NULL,
8313 ssid ? ssid->ssid_len : 0);
8315 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8319 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8320 struct p2p_nfc_params *params)
8322 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8323 "connection handover (freq=%d)",
8326 if (params->go_freq && params->go_ssid_len) {
8327 wpa_s->p2p_wps_method = WPS_NFC;
8328 wpa_s->pending_join_wps_method = WPS_NFC;
8329 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8330 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8332 return wpas_p2p_join_start(wpa_s, params->go_freq,
8334 params->go_ssid_len);
8337 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8338 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8339 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8340 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8341 params->go_ssid_len ? params->go_ssid : NULL,
8342 params->go_ssid_len);
8346 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8347 struct p2p_nfc_params *params, int tag)
8349 int res, persistent;
8350 struct wpa_ssid *ssid;
8352 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8353 "connection handover");
8354 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8355 ssid = wpa_s->current_ssid;
8358 if (ssid->mode != WPAS_MODE_P2P_GO)
8360 if (wpa_s->ap_iface == NULL)
8364 if (wpa_s == NULL) {
8365 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8369 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8370 DEV_PW_NFC_CONNECTION_HANDOVER &&
8371 !wpa_s->parent->p2p_oob_dev_pw) {
8372 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8375 res = wpas_ap_wps_add_nfc_pw(
8376 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8377 wpa_s->parent->p2p_oob_dev_pw,
8378 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8379 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8384 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8388 if (!params->peer ||
8389 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8392 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8393 " to join", MAC2STR(params->peer->p2p_device_addr));
8395 wpa_s->global->p2p_invite_group = wpa_s;
8396 persistent = ssid->p2p_persistent_group &&
8397 wpas_p2p_get_persistent(wpa_s->parent,
8398 params->peer->p2p_device_addr,
8399 ssid->ssid, ssid->ssid_len);
8400 wpa_s->parent->pending_invite_ssid_id = -1;
8402 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8403 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8404 ssid->ssid, ssid->ssid_len, ssid->frequency,
8405 wpa_s->global->p2p_dev_addr, persistent, 0,
8406 wpa_s->parent->p2p_oob_dev_pw_id);
8410 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8411 struct p2p_nfc_params *params,
8414 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8415 "connection handover");
8416 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8417 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8418 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8419 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8424 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8425 struct p2p_nfc_params *params,
8430 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8431 "connection handover");
8432 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8433 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8434 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8435 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8440 res = wpas_p2p_listen(wpa_s, 60);
8442 p2p_unauthorize(wpa_s->global->p2p,
8443 params->peer->p2p_device_addr);
8450 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8451 const struct wpabuf *data,
8452 int sel, int tag, int forced_freq)
8454 const u8 *pos, *end;
8456 struct p2p_nfc_params params;
8459 os_memset(¶ms, 0, sizeof(params));
8462 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8464 pos = wpabuf_head(data);
8465 end = pos + wpabuf_len(data);
8467 if (end - pos < 2) {
8468 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8472 len = WPA_GET_BE16(pos);
8474 if (len > end - pos) {
8475 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8479 params.wsc_attr = pos;
8480 params.wsc_len = len;
8483 if (end - pos < 2) {
8484 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8488 len = WPA_GET_BE16(pos);
8490 if (len > end - pos) {
8491 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8495 params.p2p_attr = pos;
8496 params.p2p_len = len;
8499 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8500 params.wsc_attr, params.wsc_len);
8501 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8502 params.p2p_attr, params.p2p_len);
8504 wpa_hexdump(MSG_DEBUG,
8505 "P2P: Ignored extra data after P2P attributes",
8509 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8513 if (params.next_step == NO_ACTION)
8516 if (params.next_step == BOTH_GO) {
8517 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8518 MAC2STR(params.peer->p2p_device_addr));
8522 if (params.next_step == PEER_CLIENT) {
8523 if (!is_zero_ether_addr(params.go_dev_addr)) {
8524 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8525 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8527 MAC2STR(params.peer->p2p_device_addr),
8529 MAC2STR(params.go_dev_addr),
8530 wpa_ssid_txt(params.go_ssid,
8531 params.go_ssid_len));
8533 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8534 "peer=" MACSTR " freq=%d",
8535 MAC2STR(params.peer->p2p_device_addr),
8541 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8542 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8543 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8547 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8548 wpa_s->p2p_oob_dev_pw = NULL;
8550 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8551 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8556 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8557 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8558 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8559 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8560 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8561 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8562 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8566 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8567 "peer OOB Device Password Id %u", id);
8570 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8571 "Device Password Id %u", id);
8572 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8573 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8574 params.oob_dev_pw_len -
8575 WPS_OOB_PUBKEY_HASH_LEN - 2);
8576 wpa_s->p2p_oob_dev_pw_id = id;
8577 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8578 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8579 params.oob_dev_pw_len -
8580 WPS_OOB_PUBKEY_HASH_LEN - 2);
8581 if (wpa_s->p2p_oob_dev_pw == NULL)
8584 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8585 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8586 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8589 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8590 "without Device Password");
8591 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8594 switch (params.next_step) {
8598 /* already covered above */
8601 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8603 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8605 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8607 /* TODO: use own OOB Dev Pw */
8608 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8615 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8616 const struct wpabuf *data, int forced_freq)
8618 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8621 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8625 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8626 const struct wpabuf *req,
8627 const struct wpabuf *sel, int forced_freq)
8632 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8635 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8637 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8638 wpabuf_head(req), wpabuf_len(req));
8639 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8640 wpabuf_head(sel), wpabuf_len(sel));
8642 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8643 tmp = ndef_parse_p2p(init ? sel : req);
8645 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8649 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8657 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8660 int go_intent = wpa_s->conf->p2p_go_intent;
8661 struct wpa_supplicant *iface;
8663 if (wpa_s->global->p2p == NULL)
8667 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8668 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8670 if (!iface->ap_iface)
8672 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8674 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8676 if (wpa_s->p2p_nfc_tag_enabled)
8677 wpas_p2p_remove_pending_group_interface(wpa_s);
8678 wpa_s->p2p_nfc_tag_enabled = 0;
8682 if (wpa_s->global->p2p_disabled)
8685 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8686 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8687 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8688 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8689 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8690 "to allow static handover cases");
8694 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8696 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8697 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8698 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8699 if (wpa_s->p2p_oob_dev_pw == NULL)
8701 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8703 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8704 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8706 * P2P Group Interface present and the command came on group
8707 * interface, so enable the token for the current interface.
8709 wpa_s->create_p2p_iface = 0;
8711 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8714 if (wpa_s->create_p2p_iface) {
8715 enum wpa_driver_if_type iftype;
8716 /* Prepare to add a new interface for the group */
8717 iftype = WPA_IF_P2P_GROUP;
8718 if (go_intent == 15)
8719 iftype = WPA_IF_P2P_GO;
8720 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8721 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8722 "interface for the group");
8726 if_addr = wpa_s->pending_interface_addr;
8727 } else if (wpa_s->p2p_mgmt)
8728 if_addr = wpa_s->parent->own_addr;
8730 if_addr = wpa_s->own_addr;
8732 wpa_s->p2p_nfc_tag_enabled = enabled;
8734 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8735 struct hostapd_data *hapd;
8736 if (iface->ap_iface == NULL)
8738 hapd = iface->ap_iface->bss[0];
8739 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8740 hapd->conf->wps_nfc_dh_pubkey =
8741 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8742 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8743 hapd->conf->wps_nfc_dh_privkey =
8744 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8745 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8746 hapd->conf->wps_nfc_dev_pw =
8747 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8748 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8750 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8751 wpa_dbg(iface, MSG_DEBUG,
8752 "P2P: Failed to enable NFC Tag for GO");
8755 p2p_set_authorized_oob_dev_pw_id(
8756 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8762 #endif /* CONFIG_WPS_NFC */
8765 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8766 struct wpa_used_freq_data *freqs,
8769 u8 curr_chan, cand, chan;
8773 * If possible, optimize the Listen channel to be a channel that is
8774 * already used by one of the other interfaces.
8776 if (!wpa_s->conf->p2p_optimize_listen_chan)
8779 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8782 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8783 for (i = 0, cand = 0; i < num; i++) {
8784 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8785 if (curr_chan == chan) {
8790 if (chan == 1 || chan == 6 || chan == 11)
8795 wpa_dbg(wpa_s, MSG_DEBUG,
8796 "P2P: Update Listen channel to %u based on operating channel",
8798 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8803 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8805 struct hostapd_config *conf;
8806 struct p2p_go_neg_results params;
8807 struct csa_settings csa_settings;
8808 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8809 int old_freq = current_ssid->frequency;
8812 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8813 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8818 * TODO: This function may not always work correctly. For example,
8819 * when we have a running GO and a BSS on a DFS channel.
8821 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8822 wpa_dbg(wpa_s, MSG_DEBUG,
8823 "P2P CSA: Failed to select new frequency for GO");
8827 if (current_ssid->frequency == params.freq) {
8828 wpa_dbg(wpa_s, MSG_DEBUG,
8829 "P2P CSA: Selected same frequency - not moving GO");
8833 conf = hostapd_config_defaults();
8835 wpa_dbg(wpa_s, MSG_DEBUG,
8836 "P2P CSA: Failed to allocate default config");
8840 current_ssid->frequency = params.freq;
8841 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8842 wpa_dbg(wpa_s, MSG_DEBUG,
8843 "P2P CSA: Failed to create new GO config");
8848 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8849 wpa_dbg(wpa_s, MSG_DEBUG,
8850 "P2P CSA: CSA to a different band is not supported");
8855 os_memset(&csa_settings, 0, sizeof(csa_settings));
8856 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8857 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8858 csa_settings.freq_params.freq = params.freq;
8859 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8860 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8861 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8863 if (conf->ieee80211ac) {
8864 int freq1 = 0, freq2 = 0;
8867 if (ieee80211_freq_to_channel_ext(params.freq,
8868 conf->secondary_channel,
8869 conf->vht_oper_chwidth,
8871 NUM_HOSTAPD_MODES) {
8872 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8877 if (conf->vht_oper_centr_freq_seg0_idx)
8878 freq1 = ieee80211_chan_to_freq(
8880 conf->vht_oper_centr_freq_seg0_idx);
8882 if (conf->vht_oper_centr_freq_seg1_idx)
8883 freq2 = ieee80211_chan_to_freq(
8885 conf->vht_oper_centr_freq_seg1_idx);
8887 if (freq1 < 0 || freq2 < 0) {
8888 wpa_dbg(wpa_s, MSG_DEBUG,
8889 "P2P CSA: Selected invalid VHT center freqs");
8894 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8895 csa_settings.freq_params.center_freq1 = freq1;
8896 csa_settings.freq_params.center_freq2 = freq2;
8898 switch (conf->vht_oper_chwidth) {
8899 case VHT_CHANWIDTH_80MHZ:
8900 case VHT_CHANWIDTH_80P80MHZ:
8901 csa_settings.freq_params.bandwidth = 80;
8903 case VHT_CHANWIDTH_160MHZ:
8904 csa_settings.freq_params.bandwidth = 160;
8909 ret = ap_switch_channel(wpa_s, &csa_settings);
8911 current_ssid->frequency = old_freq;
8912 hostapd_config_free(conf);
8917 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8919 struct p2p_go_neg_results params;
8920 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8922 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8924 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8925 current_ssid->frequency);
8927 /* Stop the AP functionality */
8928 /* TODO: Should do this in a way that does not indicated to possible
8929 * P2P Clients in the group that the group is terminated. */
8930 wpa_supplicant_ap_deinit(wpa_s);
8932 /* Reselect the GO frequency */
8933 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8934 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8935 wpas_p2p_group_delete(wpa_s,
8936 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8939 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8943 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8944 wpa_printf(MSG_DEBUG,
8945 "P2P: Selected freq (%u MHz) is not valid for P2P",
8947 wpas_p2p_group_delete(wpa_s,
8948 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8952 /* Update the frequency */
8953 current_ssid->frequency = params.freq;
8954 wpa_s->connect_without_scan = current_ssid;
8955 wpa_s->reassociate = 1;
8956 wpa_s->disconnected = 0;
8957 wpa_supplicant_req_scan(wpa_s, 0, 0);
8961 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8963 struct wpa_supplicant *wpa_s = eloop_ctx;
8965 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8968 wpas_p2p_go_update_common_freqs(wpa_s);
8970 /* Do not move GO in the middle of a CSA */
8971 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8972 wpa_printf(MSG_DEBUG,
8973 "P2P: CSA is in progress - not moving GO");
8978 * First, try a channel switch flow. If it is not supported or fails,
8979 * take down the GO and bring it up again.
8981 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8982 wpas_p2p_move_go_no_csa(wpa_s);
8986 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8988 struct wpa_supplicant *wpa_s = eloop_ctx;
8989 struct wpa_used_freq_data *freqs = NULL;
8990 unsigned int num = wpa_s->num_multichan_concurrent;
8992 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8996 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8998 /* Previous attempt to move a GO was not possible -- try again. */
8999 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
9000 WPAS_P2P_CHANNEL_UPDATE_ANY);
9007 * Consider moving a GO from its currently used frequency:
9008 * 1. It is possible that due to regulatory consideration the frequency
9009 * can no longer be used and there is a need to evacuate the GO.
9010 * 2. It is possible that due to MCC considerations, it would be preferable
9011 * to move the GO to a channel that is currently used by some other
9012 * station interface.
9014 * In case a frequency that became invalid is once again valid, cancel a
9015 * previously initiated GO frequency change.
9017 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
9018 struct wpa_used_freq_data *freqs,
9021 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
9022 unsigned int timeout;
9025 wpas_p2p_go_update_common_freqs(wpa_s);
9027 freq = wpa_s->current_ssid->frequency;
9028 for (i = 0, invalid_freq = 0; i < num; i++) {
9029 if (freqs[i].freq == freq) {
9030 flags = freqs[i].flags;
9032 /* The channel is invalid, must change it */
9033 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
9034 wpa_dbg(wpa_s, MSG_DEBUG,
9035 "P2P: Freq=%d MHz no longer valid for GO",
9039 } else if (freqs[i].flags == 0) {
9040 /* Freq is not used by any other station interface */
9042 } else if (!p2p_supported_freq(wpa_s->global->p2p,
9044 /* Freq is not valid for P2P use cases */
9046 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9047 P2P_GO_FREQ_MOVE_SCM) {
9049 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9050 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
9051 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9053 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
9054 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9055 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9056 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9058 } else if ((wpa_s->drv_flags &
9059 WPA_DRIVER_FLAGS_AP_CSA) &&
9060 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9064 * We do not support CSA between bands, so move
9065 * GO only within the same band.
9067 if (wpa_s->ap_iface->current_mode->mode ==
9068 ieee80211_freq_to_chan(freqs[i].freq,
9075 wpa_dbg(wpa_s, MSG_DEBUG,
9076 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9077 invalid_freq, policy_move, flags);
9080 * The channel is valid, or we are going to have a policy move, so
9083 if (!invalid_freq || policy_move) {
9084 wpa_dbg(wpa_s, MSG_DEBUG,
9085 "P2P: Cancel a GO move from freq=%d MHz", freq);
9086 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9088 if (wpas_p2p_in_progress(wpa_s)) {
9089 wpa_dbg(wpa_s, MSG_DEBUG,
9090 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9091 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9093 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9094 wpas_p2p_reconsider_moving_go,
9100 if (!invalid_freq && (!policy_move || flags != 0)) {
9101 wpa_dbg(wpa_s, MSG_DEBUG,
9102 "P2P: Not initiating a GO frequency change");
9107 * Do not consider moving GO if it is in the middle of a CSA. When the
9108 * CSA is finished this flow should be retriggered.
9110 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9111 wpa_dbg(wpa_s, MSG_DEBUG,
9112 "P2P: Not initiating a GO frequency change - CSA is in progress");
9116 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9117 timeout = P2P_GO_FREQ_CHANGE_TIME;
9121 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9123 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9124 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9128 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9129 struct wpa_used_freq_data *freqs,
9131 enum wpas_p2p_channel_update_trig trig)
9133 struct wpa_supplicant *ifs;
9135 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9139 * Travers all the radio interfaces, and for each GO interface, check
9140 * if there is a need to move the GO from the frequency it is using,
9141 * or in case the frequency is valid again, cancel the evacuation flow.
9143 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9145 if (ifs->current_ssid == NULL ||
9146 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9150 * The GO was just started or completed channel switch, no need
9154 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9155 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9156 wpa_dbg(wpa_s, MSG_DEBUG,
9157 "P2P: GO move - schedule re-consideration");
9158 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9159 wpas_p2p_reconsider_moving_go,
9164 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9169 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9171 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9174 wpas_p2p_update_channel_list(wpa_s,
9175 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9179 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9181 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9182 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9183 "the management interface is being removed");
9184 wpas_p2p_deinit_global(wpa_s->global);
9189 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9191 if (wpa_s->ap_iface->bss)
9192 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9193 wpas_p2p_group_deinit(wpa_s);