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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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 };
355 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
358 if (wpa_s->p2p_scan_work) {
359 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
363 params = os_zalloc(sizeof(*params));
367 /* P2P Wildcard SSID */
368 params->num_ssids = 1;
369 n = os_malloc(P2P_WILDCARD_SSID_LEN);
372 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
373 params->ssids[0].ssid = n;
374 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
376 wpa_s->wps->dev.p2p = 1;
377 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
378 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
379 num_req_dev_types, req_dev_types);
383 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
384 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
389 wpabuf_put_buf(ies, wps_ie);
392 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
394 params->p2p_probe = 1;
395 n = os_malloc(wpabuf_len(ies));
400 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
401 params->extra_ies = n;
402 params->extra_ies_len = wpabuf_len(ies);
406 case P2P_SCAN_SOCIAL:
407 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
409 if (params->freqs == NULL)
411 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
412 if (wpas_p2p_search_social_channel(
413 wpa_s, social_channels_freq[i]))
414 params->freqs[num_channels++] =
415 social_channels_freq[i];
417 params->freqs[num_channels++] = 0;
421 case P2P_SCAN_SPECIFIC:
422 params->freqs = os_calloc(2, sizeof(int));
423 if (params->freqs == NULL)
425 params->freqs[0] = freq;
426 params->freqs[1] = 0;
428 case P2P_SCAN_SOCIAL_PLUS_ONE:
429 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
431 if (params->freqs == NULL)
433 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
434 if (wpas_p2p_search_social_channel(
435 wpa_s, social_channels_freq[i]))
436 params->freqs[num_channels++] =
437 social_channels_freq[i];
439 if (p2p_supported_freq(wpa_s->global->p2p, freq))
440 params->freqs[num_channels++] = freq;
441 params->freqs[num_channels++] = 0;
445 radio_remove_works(wpa_s, "p2p-scan", 0);
446 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
452 wpa_scan_free_params(params);
457 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
459 switch (p2p_group_interface) {
460 case P2P_GROUP_INTERFACE_PENDING:
461 return WPA_IF_P2P_GROUP;
462 case P2P_GROUP_INTERFACE_GO:
463 return WPA_IF_P2P_GO;
464 case P2P_GROUP_INTERFACE_CLIENT:
465 return WPA_IF_P2P_CLIENT;
468 return WPA_IF_P2P_GROUP;
472 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
474 size_t ssid_len, int *go)
478 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
479 for (s = wpa_s->conf->ssid; s; s = s->next) {
480 if (s->disabled != 0 || !s->p2p_group ||
481 s->ssid_len != ssid_len ||
482 os_memcmp(ssid, s->ssid, ssid_len) != 0)
484 if (s->mode == WPAS_MODE_P2P_GO &&
485 s != wpa_s->current_ssid)
488 *go = s->mode == WPAS_MODE_P2P_GO;
497 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
499 struct wpa_supplicant *wpa_s = eloop_ctx;
500 wpa_printf(MSG_DEBUG,
501 "P2P: Complete previously requested removal of %s",
503 wpas_p2p_disconnect(wpa_s);
507 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
508 struct wpa_supplicant *calling_wpa_s)
510 if (calling_wpa_s == wpa_s && wpa_s &&
511 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
513 * The calling wpa_s instance is going to be removed. Do that
514 * from an eloop callback to keep the instance available until
515 * the caller has returned. This my be needed, e.g., to provide
516 * control interface responses on the per-interface socket.
518 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
524 return wpas_p2p_disconnect(wpa_s);
528 /* Determine total number of clients in active groups where we are the GO */
529 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
531 unsigned int count = 0;
534 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
535 for (s = wpa_s->conf->ssid; s; s = s->next) {
536 wpa_printf(MSG_DEBUG,
537 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
538 wpa_s, s, s->disabled, s->p2p_group,
540 if (!s->disabled && s->p2p_group &&
541 s->mode == WPAS_MODE_P2P_GO) {
542 count += p2p_get_group_num_members(
552 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
554 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
555 !wpa_s->current_ssid->disabled &&
556 wpa_s->current_ssid->p2p_group &&
557 wpa_s->current_ssid->p2p_persistent_group;
561 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
563 return p2p_is_active_persistent_group(wpa_s) &&
564 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
568 /* Find an interface for a P2P group where we are the GO */
569 static struct wpa_supplicant *
570 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
572 struct wpa_supplicant *save = NULL;
577 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
578 if (!p2p_is_active_persistent_go(wpa_s))
581 /* Prefer a group with connected clients */
582 if (p2p_get_group_num_members(wpa_s->p2p_group))
587 /* No group with connected clients, so pick the one without (if any) */
592 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
594 return p2p_is_active_persistent_group(wpa_s) &&
595 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
599 /* Find an interface for a P2P group where we are the P2P Client */
600 static struct wpa_supplicant *
601 wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
603 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
604 if (p2p_is_active_persistent_cli(wpa_s))
612 /* Find a persistent group where we are the GO */
613 static struct wpa_ssid *
614 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
618 for (s = wpa_s->conf->ssid; s; s = s->next) {
619 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
627 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
628 unsigned int *force_freq,
629 unsigned int *pref_freq)
631 struct wpa_supplicant *wpa_s = ctx;
633 u8 conncap = P2PS_SETUP_NONE;
634 unsigned int owned_members = 0;
635 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
636 struct wpa_ssid *persistent_go;
637 int p2p_no_group_iface;
638 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
640 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
647 size = P2P_MAX_PREF_CHANNELS;
648 if (force_freq && pref_freq &&
649 !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
650 (int *) pref_freq, 0, pref_freq_list, &size))
651 wpas_p2p_set_own_freq_preference(wpa_s,
652 *force_freq ? *force_freq :
656 * For non-concurrent capable devices:
657 * If persistent_go, then no new.
658 * If GO, then no client.
659 * If client, then no GO.
661 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
663 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
664 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
665 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
666 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
668 wpa_printf(MSG_DEBUG,
669 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
670 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
672 /* If not concurrent, restrict our choices */
673 if (p2p_no_group_iface) {
674 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
677 return P2PS_SETUP_NONE;
680 if (role == P2PS_SETUP_CLIENT ||
681 incoming == P2PS_SETUP_GROUP_OWNER ||
682 p2p_client_limit_reached(go_wpa_s->p2p_group))
683 return P2PS_SETUP_NONE;
685 return P2PS_SETUP_GROUP_OWNER;
689 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
691 return P2PS_SETUP_GROUP_OWNER |
693 if (incoming == P2PS_SETUP_NEW) {
696 if (os_get_random(&r, sizeof(r)) < 0 ||
698 return P2PS_SETUP_CLIENT;
699 return P2PS_SETUP_GROUP_OWNER;
705 /* If a required role has been specified, handle it here */
706 if (role && role != P2PS_SETUP_NEW) {
708 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
709 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
711 * Peer has an active GO, so if the role allows it and
712 * we do not have any active roles, become client.
714 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
716 return P2PS_SETUP_CLIENT;
720 case P2PS_SETUP_NONE:
725 case P2PS_SETUP_GROUP_OWNER:
727 * Must be a complimentary role - cannot be a client to
728 * more than one peer.
730 if (incoming == role || cli_wpa_s)
731 return P2PS_SETUP_NONE;
733 return P2PS_SETUP_CLIENT;
735 case P2PS_SETUP_CLIENT:
736 /* Must be a complimentary role */
737 if (incoming != role) {
738 conncap = P2PS_SETUP_GROUP_OWNER;
743 return P2PS_SETUP_NONE;
748 * For now, we only will support ownership of one group, and being a
749 * client of one group. Therefore, if we have either an existing GO
750 * group, or an existing client group, we will not do a new GO
751 * negotiation, but rather try to re-use the existing groups.
754 case P2PS_SETUP_NONE:
757 conncap = P2PS_SETUP_GROUP_OWNER;
758 else if (!owned_members)
759 conncap = P2PS_SETUP_NEW;
760 else if (incoming == P2PS_SETUP_NONE)
761 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
763 conncap = P2PS_SETUP_CLIENT;
766 case P2PS_SETUP_CLIENT:
767 conncap = P2PS_SETUP_GROUP_OWNER;
770 case P2PS_SETUP_GROUP_OWNER:
772 conncap = P2PS_SETUP_CLIENT;
775 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
776 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
778 conncap = P2PS_SETUP_GROUP_OWNER;
782 if (os_get_random(&r, sizeof(r)) < 0 ||
784 conncap = P2PS_SETUP_CLIENT;
786 conncap = P2PS_SETUP_GROUP_OWNER;
791 return P2PS_SETUP_NONE;
795 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
796 (!incoming && (conncap & P2PS_SETUP_NEW))) {
797 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
798 conncap &= ~P2PS_SETUP_GROUP_OWNER;
800 s = wpas_p2p_get_persistent_go(wpa_s);
801 if (!s && !go_wpa_s && p2p_no_group_iface) {
802 p2p_set_intended_addr(wpa_s->global->p2p,
804 } else if (!s && !go_wpa_s) {
805 if (wpas_p2p_add_group_interface(wpa_s,
806 WPA_IF_P2P_GO) < 0) {
807 wpa_printf(MSG_ERROR,
808 "P2P: Failed to allocate a new interface for the group");
809 return P2PS_SETUP_NONE;
811 wpa_s->global->pending_group_iface_for_p2ps = 1;
812 p2p_set_intended_addr(wpa_s->global->p2p,
813 wpa_s->pending_interface_addr);
821 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
822 enum p2p_group_removal_reason removal_reason)
824 struct wpa_ssid *ssid;
828 ssid = wpa_s->current_ssid;
831 * The current SSID was not known, but there may still be a
832 * pending P2P group interface waiting for provisioning or a
833 * P2P group that is trying to reconnect.
835 ssid = wpa_s->conf->ssid;
837 if (ssid->p2p_group && ssid->disabled != 2)
842 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
844 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
849 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
851 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
852 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
853 wpa_s->reassociate = 0;
854 wpa_s->disconnected = 1;
859 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
860 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
862 if (os_strcmp(gtype, "client") == 0) {
863 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
864 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
866 wpa_printf(MSG_DEBUG,
867 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
868 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
869 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
874 if (wpa_s->cross_connect_in_use) {
875 wpa_s->cross_connect_in_use = 0;
876 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
877 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
878 wpa_s->ifname, wpa_s->cross_connect_uplink);
880 switch (removal_reason) {
881 case P2P_GROUP_REMOVAL_REQUESTED:
882 reason = " reason=REQUESTED";
884 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
885 reason = " reason=FORMATION_FAILED";
887 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
888 reason = " reason=IDLE";
890 case P2P_GROUP_REMOVAL_UNAVAILABLE:
891 reason = " reason=UNAVAILABLE";
893 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
894 reason = " reason=GO_ENDING_SESSION";
896 case P2P_GROUP_REMOVAL_PSK_FAILURE:
897 reason = " reason=PSK_FAILURE";
899 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
900 reason = " reason=FREQ_CONFLICT";
906 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
907 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
908 P2P_EVENT_GROUP_REMOVED "%s %s%s",
909 wpa_s->ifname, gtype, reason);
912 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
913 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
914 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
915 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
916 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
917 wpa_s->p2pdev, NULL) > 0) {
918 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
920 wpa_s->p2p_in_provisioning = 0;
921 wpas_p2p_group_formation_failed(wpa_s, 1);
924 wpa_s->p2p_in_invitation = 0;
925 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
926 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
929 * Make sure wait for the first client does not remain active after the
930 * group has been removed.
932 wpa_s->global->p2p_go_wait_client.sec = 0;
934 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
935 struct wpa_global *global;
937 enum wpa_driver_if_type type;
938 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
940 global = wpa_s->global;
941 ifname = os_strdup(wpa_s->ifname);
942 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
943 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
944 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
945 wpa_s = global->ifaces;
947 wpa_drv_if_remove(wpa_s, type, ifname);
952 if (!wpa_s->p2p_go_group_formation_completed) {
953 wpa_s->global->p2p_group_formation = NULL;
954 wpa_s->p2p_in_provisioning = 0;
957 wpa_s->show_group_started = 0;
958 os_free(wpa_s->go_params);
959 wpa_s->go_params = NULL;
961 os_free(wpa_s->p2p_group_common_freqs);
962 wpa_s->p2p_group_common_freqs = NULL;
963 wpa_s->p2p_group_common_freqs_num = 0;
965 wpa_s->waiting_presence_resp = 0;
967 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
968 if (ssid && (ssid->p2p_group ||
969 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
970 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
972 if (ssid == wpa_s->current_ssid) {
973 wpa_sm_set_config(wpa_s->wpa, NULL);
974 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
975 wpa_s->current_ssid = NULL;
978 * Networks objects created during any P2P activities are not
979 * exposed out as they might/will confuse certain non-P2P aware
980 * applications since these network objects won't behave like
983 * Likewise, we don't send out network removed signals for such
986 wpa_config_remove_network(wpa_s->conf, id);
987 wpa_supplicant_clear_status(wpa_s);
988 wpa_supplicant_cancel_sched_scan(wpa_s);
990 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
994 wpa_supplicant_ap_deinit(wpa_s);
996 wpa_drv_deinit_p2p_cli(wpa_s);
998 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1004 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1006 const u8 *ssid, size_t ssid_len)
1008 struct wpa_bss *bss;
1014 if (wpa_s->go_params)
1015 bssid = wpa_s->go_params->peer_interface_addr;
1017 bssid = wpa_s->bssid;
1019 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
1020 if (bss == NULL && wpa_s->go_params &&
1021 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1022 bss = wpa_bss_get_p2p_dev_addr(
1023 wpa_s, wpa_s->go_params->peer_device_addr);
1025 u8 iface_addr[ETH_ALEN];
1026 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1028 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1031 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1032 "group is persistent - BSS " MACSTR " not found",
1037 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1039 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1040 P2P_IE_VENDOR_TYPE);
1042 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1043 "group is persistent - BSS " MACSTR
1044 " did not include P2P IE", MAC2STR(bssid));
1045 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1046 (u8 *) (bss + 1), bss->ie_len);
1047 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1048 ((u8 *) bss + 1) + bss->ie_len,
1049 bss->beacon_ie_len);
1053 group_capab = p2p_get_group_capab(p2p);
1054 addr = p2p_get_go_dev_addr(p2p);
1055 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1056 "group_capab=0x%x", group_capab);
1058 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1059 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1062 os_memset(go_dev_addr, 0, ETH_ALEN);
1065 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1066 "go_dev_addr=" MACSTR,
1067 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1069 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1073 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1074 struct wpa_ssid *ssid,
1075 const u8 *go_dev_addr)
1080 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1081 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1082 for (s = wpa_s->conf->ssid; s; s = s->next) {
1083 if (s->disabled == 2 &&
1084 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1085 s->ssid_len == ssid->ssid_len &&
1086 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1091 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1093 if (ssid->passphrase && !s->passphrase)
1095 else if (ssid->passphrase && s->passphrase &&
1096 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1099 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1102 s = wpa_config_add_network(wpa_s->conf);
1107 * Instead of network_added we emit persistent_group_added
1108 * notification. Also to keep the defense checks in
1109 * persistent_group obj registration method, we set the
1110 * relevant flags in s to designate it as a persistent group.
1113 s->p2p_persistent_group = 1;
1114 wpas_notify_persistent_group_added(wpa_s, s);
1115 wpa_config_set_network_defaults(s);
1119 s->p2p_persistent_group = 1;
1122 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1123 s->mode = ssid->mode;
1124 s->auth_alg = WPA_AUTH_ALG_OPEN;
1125 s->key_mgmt = WPA_KEY_MGMT_PSK;
1126 s->proto = WPA_PROTO_RSN;
1127 s->pairwise_cipher = WPA_CIPHER_CCMP;
1129 if (ssid->passphrase) {
1130 os_free(s->passphrase);
1131 s->passphrase = os_strdup(ssid->passphrase);
1133 if (ssid->psk_set) {
1135 os_memcpy(s->psk, ssid->psk, 32);
1137 if (s->passphrase && !s->psk_set)
1138 wpa_config_update_psk(s);
1139 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1141 s->ssid = os_malloc(ssid->ssid_len);
1144 s->ssid_len = ssid->ssid_len;
1145 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1147 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1148 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1149 wpa_s->global->add_psk = NULL;
1153 if (changed && wpa_s->conf->update_config &&
1154 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1155 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1162 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1165 struct wpa_ssid *ssid, *s;
1169 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1171 ssid = wpa_s->current_ssid;
1172 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1173 !ssid->p2p_persistent_group)
1176 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1177 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1180 if (s->ssid_len == ssid->ssid_len &&
1181 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1188 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1189 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1193 if (i == s->num_p2p_clients - 1)
1194 return; /* already the most recent entry */
1196 /* move the entry to mark it most recent */
1197 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1198 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1199 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1200 os_memcpy(s->p2p_client_list +
1201 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1203 os_memset(s->p2p_client_list +
1204 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1210 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1211 n = os_realloc_array(s->p2p_client_list,
1212 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1215 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1217 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1219 s->p2p_client_list = n;
1220 s->num_p2p_clients++;
1221 } else if (!found && s->p2p_client_list) {
1222 /* Not enough room for an additional entry - drop the oldest
1224 os_memmove(s->p2p_client_list,
1225 s->p2p_client_list + 2 * ETH_ALEN,
1226 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1227 os_memcpy(s->p2p_client_list +
1228 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1230 os_memset(s->p2p_client_list +
1231 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1235 if (p2p_wpa_s->conf->update_config &&
1236 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1237 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1241 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1242 int go, struct wpa_ssid *ssid, int freq,
1243 const u8 *psk, const char *passphrase,
1244 const u8 *go_dev_addr, int persistent,
1247 const char *ssid_txt;
1251 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1256 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1260 if (passphrase && passphrase[0] == '\0')
1264 * Include PSK/passphrase only in the control interface message and
1265 * leave it out from the debug log entry.
1267 wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
1268 P2P_EVENT_GROUP_STARTED
1269 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1271 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1272 psk ? " psk=" : "", psk_txt,
1273 passphrase ? " passphrase=\"" : "",
1274 passphrase ? passphrase : "",
1275 passphrase ? "\"" : "",
1276 MAC2STR(go_dev_addr),
1277 persistent ? " [PERSISTENT]" : "", extra);
1278 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1279 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1280 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1281 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1286 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1287 int success, int already_deleted)
1289 struct wpa_ssid *ssid;
1292 u8 go_dev_addr[ETH_ALEN];
1293 int network_id = -1;
1296 * This callback is likely called for the main interface. Update wpa_s
1297 * to use the group interface if a new interface was created for the
1300 if (wpa_s->global->p2p_group_formation)
1301 wpa_s = wpa_s->global->p2p_group_formation;
1302 if (wpa_s->p2p_go_group_formation_completed) {
1303 wpa_s->global->p2p_group_formation = NULL;
1304 wpa_s->p2p_in_provisioning = 0;
1306 wpa_s->p2p_in_invitation = 0;
1307 wpa_s->group_formation_reported = 1;
1310 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1311 P2P_EVENT_GROUP_FORMATION_FAILURE);
1312 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1313 if (already_deleted)
1315 wpas_p2p_group_delete(wpa_s,
1316 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1320 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1321 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1323 ssid = wpa_s->current_ssid;
1324 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1325 ssid->mode = WPAS_MODE_P2P_GO;
1326 p2p_group_notif_formation_done(wpa_s->p2p_group);
1327 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1332 client = ssid->mode == WPAS_MODE_INFRA;
1333 if (ssid->mode == WPAS_MODE_P2P_GO) {
1334 persistent = ssid->p2p_persistent_group;
1335 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1338 persistent = wpas_p2p_persistent_group(wpa_s,
1343 client = wpa_s->p2p_group_interface ==
1344 P2P_GROUP_INTERFACE_CLIENT;
1345 os_memset(go_dev_addr, 0, ETH_ALEN);
1348 wpa_s->show_group_started = 0;
1351 * Indicate event only after successfully completed 4-way
1352 * handshake, i.e., when the interface is ready for data
1355 wpa_s->show_group_started = 1;
1357 wpas_p2p_group_started(wpa_s, 1, ssid,
1358 ssid ? ssid->frequency : 0,
1359 ssid && ssid->passphrase == NULL &&
1360 ssid->psk_set ? ssid->psk : NULL,
1361 ssid ? ssid->passphrase : NULL,
1362 go_dev_addr, persistent, "");
1363 wpas_p2p_cross_connect_setup(wpa_s);
1364 wpas_p2p_set_group_idle_timeout(wpa_s);
1368 network_id = wpas_p2p_store_persistent_group(wpa_s->p2pdev,
1371 os_free(wpa_s->global->add_psk);
1372 wpa_s->global->add_psk = NULL;
1374 if (network_id < 0 && ssid)
1375 network_id = ssid->id;
1377 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1378 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1383 struct send_action_work {
1389 unsigned int wait_time;
1394 static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1396 struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1398 wpa_printf(MSG_DEBUG,
1399 "P2P: Free Action frame radio work @%p (freq=%u dst="
1400 MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1401 wpa_s->p2p_send_action_work, awork->freq,
1402 MAC2STR(awork->dst), MAC2STR(awork->src),
1403 MAC2STR(awork->bssid), awork->wait_time);
1404 wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1405 awork->buf, awork->len);
1407 wpa_s->p2p_send_action_work->ctx = NULL;
1408 radio_work_done(wpa_s->p2p_send_action_work);
1409 wpa_s->p2p_send_action_work = NULL;
1413 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1416 struct wpa_supplicant *wpa_s = eloop_ctx;
1418 if (!wpa_s->p2p_send_action_work)
1421 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1422 wpas_p2p_free_send_action_work(wpa_s);
1426 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1428 if (wpa_s->p2p_send_action_work) {
1429 struct send_action_work *awork;
1431 awork = wpa_s->p2p_send_action_work->ctx;
1432 wpa_printf(MSG_DEBUG,
1433 "P2P: Clear Action TX work @%p (wait_time=%u)",
1434 wpa_s->p2p_send_action_work, awork->wait_time);
1435 if (awork->wait_time == 0) {
1436 wpas_p2p_free_send_action_work(wpa_s);
1439 * In theory, this should not be needed, but number of
1440 * places in the P2P code is still using non-zero wait
1441 * time for the last Action frame in the sequence and
1442 * some of these do not call send_action_done().
1444 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1446 eloop_register_timeout(
1447 0, awork->wait_time * 1000,
1448 wpas_p2p_send_action_work_timeout,
1455 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1457 const u8 *dst, const u8 *src,
1459 const u8 *data, size_t data_len,
1460 enum offchannel_send_action_result
1463 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1465 wpas_p2p_action_tx_clear(wpa_s);
1467 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1471 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1472 res = P2P_SEND_ACTION_SUCCESS;
1474 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1475 res = P2P_SEND_ACTION_NO_ACK;
1477 case OFFCHANNEL_SEND_ACTION_FAILED:
1478 res = P2P_SEND_ACTION_FAILED;
1482 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1484 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1485 wpa_s->pending_pd_before_join &&
1486 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1487 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1488 wpa_s->p2p_fallback_to_go_neg) {
1489 wpa_s->pending_pd_before_join = 0;
1490 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1491 "during p2p_connect-auto");
1492 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1493 P2P_EVENT_FALLBACK_TO_GO_NEG
1494 "reason=no-ACK-to-PD-Req");
1495 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1501 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1503 struct wpa_supplicant *wpa_s = work->wpa_s;
1504 struct send_action_work *awork = work->ctx;
1507 if (work->started) {
1508 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1510 wpa_s->p2p_send_action_work = NULL;
1511 offchannel_send_action_done(wpa_s);
1517 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1518 awork->bssid, awork->buf, awork->len,
1520 wpas_p2p_send_action_tx_status, 1) < 0) {
1522 radio_work_done(work);
1525 wpa_s->p2p_send_action_work = work;
1529 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1530 unsigned int freq, const u8 *dst,
1531 const u8 *src, const u8 *bssid, const u8 *buf,
1532 size_t len, unsigned int wait_time)
1534 struct send_action_work *awork;
1536 if (wpa_s->p2p_send_action_work) {
1537 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1541 awork = os_zalloc(sizeof(*awork) + len);
1546 os_memcpy(awork->dst, dst, ETH_ALEN);
1547 os_memcpy(awork->src, src, ETH_ALEN);
1548 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1550 awork->wait_time = wait_time;
1551 os_memcpy(awork->buf, buf, len);
1553 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1554 wpas_send_action_cb, awork) < 0) {
1563 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1564 const u8 *src, const u8 *bssid, const u8 *buf,
1565 size_t len, unsigned int wait_time)
1567 struct wpa_supplicant *wpa_s = ctx;
1568 int listen_freq = -1, send_freq = -1;
1570 if (wpa_s->p2p_listen_work)
1571 listen_freq = wpa_s->p2p_listen_work->freq;
1572 if (wpa_s->p2p_send_action_work)
1573 send_freq = wpa_s->p2p_send_action_work->freq;
1574 if (listen_freq != (int) freq && send_freq != (int) freq) {
1575 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1576 listen_freq, send_freq);
1577 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1581 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1582 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1584 wpas_p2p_send_action_tx_status, 1);
1588 static void wpas_send_action_done(void *ctx)
1590 struct wpa_supplicant *wpa_s = ctx;
1592 if (wpa_s->p2p_send_action_work) {
1593 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1595 os_free(wpa_s->p2p_send_action_work->ctx);
1596 radio_work_done(wpa_s->p2p_send_action_work);
1597 wpa_s->p2p_send_action_work = NULL;
1600 offchannel_send_action_done(wpa_s);
1604 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1605 struct p2p_go_neg_results *params)
1607 if (wpa_s->go_params == NULL) {
1608 wpa_s->go_params = os_malloc(sizeof(*params));
1609 if (wpa_s->go_params == NULL)
1612 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1617 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1618 struct p2p_go_neg_results *res)
1620 wpa_s->group_formation_reported = 0;
1621 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1622 " dev_addr " MACSTR " wps_method %d",
1623 MAC2STR(res->peer_interface_addr),
1624 MAC2STR(res->peer_device_addr), res->wps_method);
1625 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1626 res->ssid, res->ssid_len);
1627 wpa_supplicant_ap_deinit(wpa_s);
1628 wpas_copy_go_neg_results(wpa_s, res);
1629 if (res->wps_method == WPS_PBC) {
1630 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1631 #ifdef CONFIG_WPS_NFC
1632 } else if (res->wps_method == WPS_NFC) {
1633 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1634 res->peer_interface_addr,
1635 wpa_s->p2pdev->p2p_oob_dev_pw,
1636 wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
1637 wpa_s->p2pdev->p2p_oob_dev_pw_id ==
1638 DEV_PW_NFC_CONNECTION_HANDOVER ?
1639 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
1642 #endif /* CONFIG_WPS_NFC */
1644 u16 dev_pw_id = DEV_PW_DEFAULT;
1645 if (wpa_s->p2p_wps_method == WPS_P2PS)
1646 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1647 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1648 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1649 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1650 wpa_s->p2p_pin, 1, dev_pw_id);
1655 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1656 struct wpa_ssid *ssid)
1658 struct wpa_ssid *persistent;
1659 struct psk_list_entry *psk;
1660 struct hostapd_data *hapd;
1662 if (!wpa_s->ap_iface)
1665 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
1667 if (persistent == NULL)
1670 hapd = wpa_s->ap_iface->bss[0];
1672 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1674 struct hostapd_wpa_psk *hpsk;
1676 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1678 MAC2STR(psk->addr), psk->p2p);
1679 hpsk = os_zalloc(sizeof(*hpsk));
1682 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1684 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1686 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1687 hpsk->next = hapd->conf->ssid.wpa_psk;
1688 hapd->conf->ssid.wpa_psk = hpsk;
1693 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1697 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1698 wpa_s->p2p_group_common_freqs_num);
1700 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1701 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1702 i, wpa_s->p2p_group_common_freqs[i]);
1706 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1707 struct p2p_go_neg_results *params)
1709 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1711 wpa_s->p2p_group_common_freqs_num = 0;
1712 os_free(wpa_s->p2p_group_common_freqs);
1713 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1714 if (!wpa_s->p2p_group_common_freqs)
1717 for (i = 0; i < len; i++) {
1718 if (!wpa_s->go_params->freq_list[i])
1720 wpa_s->p2p_group_common_freqs[i] =
1721 wpa_s->go_params->freq_list[i];
1723 wpa_s->p2p_group_common_freqs_num = i;
1727 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1729 #ifndef CONFIG_NO_CONFIG_WRITE
1730 if (wpa_s->p2pdev->conf->update_config &&
1731 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
1732 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1733 #endif /* CONFIG_NO_CONFIG_WRITE */
1737 static void p2p_go_configured(void *ctx, void *data)
1739 struct wpa_supplicant *wpa_s = ctx;
1740 struct p2p_go_neg_results *params = data;
1741 struct wpa_ssid *ssid;
1742 int network_id = -1;
1744 wpa_s->ap_configured_cb = NULL;
1745 wpa_s->ap_configured_cb_ctx = NULL;
1746 wpa_s->ap_configured_cb_data = NULL;
1747 if (!wpa_s->go_params) {
1748 wpa_printf(MSG_ERROR,
1749 "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1753 p2p_go_save_group_common_freqs(wpa_s, params);
1754 p2p_go_dump_common_freqs(wpa_s);
1756 ssid = wpa_s->current_ssid;
1757 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1758 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1759 if (wpa_s->global->p2p_group_formation == wpa_s)
1760 wpa_s->global->p2p_group_formation = NULL;
1761 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1762 params->passphrase[0] == '\0' ?
1765 wpa_s->global->p2p_dev_addr,
1766 params->persistent_group, "");
1767 wpa_s->group_formation_reported = 1;
1769 if (wpa_s->p2pdev->p2ps_method_config_any) {
1770 if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
1771 wpa_dbg(wpa_s, MSG_DEBUG,
1772 "P2PS: Setting default PIN for ANY");
1773 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1774 "12345670", NULL, 0,
1777 wpa_dbg(wpa_s, MSG_DEBUG,
1778 "P2PS: Setting default PIN for " MACSTR,
1779 MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
1780 wpa_supplicant_ap_wps_pin(
1781 wpa_s, wpa_s->p2pdev->p2ps_join_addr,
1782 "12345670", NULL, 0, 0);
1784 wpa_s->p2pdev->p2ps_method_config_any = 0;
1787 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1788 if (params->persistent_group) {
1789 network_id = wpas_p2p_store_persistent_group(
1790 wpa_s->p2pdev, ssid,
1791 wpa_s->global->p2p_dev_addr);
1792 wpas_p2p_add_psk_list(wpa_s, ssid);
1795 network_id = ssid->id;
1796 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1797 wpas_p2p_cross_connect_setup(wpa_s);
1798 wpas_p2p_set_group_idle_timeout(wpa_s);
1800 if (wpa_s->p2p_first_connection_timeout) {
1801 wpa_dbg(wpa_s, MSG_DEBUG,
1802 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1803 wpa_s->p2p_first_connection_timeout);
1804 wpa_s->p2p_go_group_formation_completed = 0;
1805 wpa_s->global->p2p_group_formation = wpa_s;
1806 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1807 wpa_s->p2pdev, NULL);
1808 eloop_register_timeout(
1809 wpa_s->p2p_first_connection_timeout, 0,
1810 wpas_p2p_group_formation_timeout,
1811 wpa_s->p2pdev, NULL);
1817 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1818 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1819 params->peer_interface_addr)) {
1820 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1824 if (params->wps_method == WPS_PBC) {
1825 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1826 params->peer_device_addr);
1827 #ifdef CONFIG_WPS_NFC
1828 } else if (params->wps_method == WPS_NFC) {
1829 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
1830 DEV_PW_NFC_CONNECTION_HANDOVER &&
1831 !wpa_s->p2pdev->p2p_oob_dev_pw) {
1832 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1835 wpas_ap_wps_add_nfc_pw(
1836 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
1837 wpa_s->p2pdev->p2p_oob_dev_pw,
1838 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
1839 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
1840 #endif /* CONFIG_WPS_NFC */
1841 } else if (wpa_s->p2p_pin[0])
1842 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1843 wpa_s->p2p_pin, NULL, 0, 0);
1844 os_free(wpa_s->go_params);
1845 wpa_s->go_params = NULL;
1849 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1850 struct p2p_go_neg_results *params,
1851 int group_formation)
1853 struct wpa_ssid *ssid;
1855 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1856 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1857 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1862 ssid = wpa_config_add_network(wpa_s->conf);
1864 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1868 wpa_s->show_group_started = 0;
1869 wpa_s->p2p_go_group_formation_completed = 0;
1870 wpa_s->group_formation_reported = 0;
1871 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1873 wpa_config_set_network_defaults(ssid);
1874 ssid->temporary = 1;
1875 ssid->p2p_group = 1;
1876 ssid->p2p_persistent_group = params->persistent_group;
1877 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1879 ssid->frequency = params->freq;
1880 ssid->ht40 = params->ht40;
1881 ssid->vht = params->vht;
1882 ssid->max_oper_chwidth = params->max_oper_chwidth;
1883 ssid->vht_center_freq2 = params->vht_center_freq2;
1884 ssid->ssid = os_zalloc(params->ssid_len + 1);
1886 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1887 ssid->ssid_len = params->ssid_len;
1889 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1890 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1891 ssid->proto = WPA_PROTO_RSN;
1892 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1893 ssid->group_cipher = WPA_CIPHER_CCMP;
1894 if (params->freq > 56160) {
1896 * Enable GCMP instead of CCMP as pairwise_cipher and
1897 * group_cipher in 60 GHz.
1899 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1900 ssid->group_cipher = WPA_CIPHER_GCMP;
1901 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1904 if (os_strlen(params->passphrase) > 0) {
1905 ssid->passphrase = os_strdup(params->passphrase);
1906 if (ssid->passphrase == NULL) {
1907 wpa_msg_global(wpa_s, MSG_ERROR,
1908 "P2P: Failed to copy passphrase for GO");
1909 wpa_config_remove_network(wpa_s->conf, ssid->id);
1913 ssid->passphrase = NULL;
1914 ssid->psk_set = params->psk_set;
1916 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1917 else if (ssid->passphrase)
1918 wpa_config_update_psk(ssid);
1919 ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
1921 wpa_s->ap_configured_cb = p2p_go_configured;
1922 wpa_s->ap_configured_cb_ctx = wpa_s;
1923 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1924 wpa_s->scan_req = NORMAL_SCAN_REQ;
1925 wpa_s->connect_without_scan = ssid;
1926 wpa_s->reassociate = 1;
1927 wpa_s->disconnected = 0;
1928 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1930 wpa_supplicant_req_scan(wpa_s, 0, 0);
1934 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1935 const struct wpa_supplicant *src)
1937 struct wpa_config *d;
1938 const struct wpa_config *s;
1943 #define C(n) if (s->n) d->n = os_strdup(s->n)
1952 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1953 os_memcpy(d->sec_device_type, s->sec_device_type,
1954 sizeof(d->sec_device_type));
1955 d->num_sec_device_types = s->num_sec_device_types;
1957 d->p2p_group_idle = s->p2p_group_idle;
1958 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1959 d->p2p_intra_bss = s->p2p_intra_bss;
1960 d->persistent_reconnect = s->persistent_reconnect;
1961 d->max_num_sta = s->max_num_sta;
1962 d->pbc_in_m1 = s->pbc_in_m1;
1963 d->ignore_old_scan_res = s->ignore_old_scan_res;
1964 d->beacon_int = s->beacon_int;
1965 d->dtim_period = s->dtim_period;
1966 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1967 d->disassoc_low_ack = s->disassoc_low_ack;
1968 d->disable_scan_offload = s->disable_scan_offload;
1969 d->passive_scan = s->passive_scan;
1971 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1972 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1973 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1975 d->p2p_cli_probe = s->p2p_cli_probe;
1979 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1980 char *ifname, size_t len)
1982 char *ifname_ptr = wpa_s->ifname;
1984 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1985 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1986 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1989 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1990 if (os_strlen(ifname) >= IFNAMSIZ &&
1991 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1994 /* Try to avoid going over the IFNAMSIZ length limit */
1995 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1996 if (os_snprintf_error(len, res) && len)
1997 ifname[len - 1] = '\0';
2002 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2003 enum wpa_driver_if_type type)
2005 char ifname[120], force_ifname[120];
2007 if (wpa_s->pending_interface_name[0]) {
2008 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2009 "- skip creation of a new one");
2010 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2011 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2012 "unknown?! ifname='%s'",
2013 wpa_s->pending_interface_name);
2019 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2020 force_ifname[0] = '\0';
2022 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2024 wpa_s->p2p_group_idx++;
2026 wpa_s->pending_interface_type = type;
2027 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2028 wpa_s->pending_interface_addr, NULL) < 0) {
2029 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2034 if (force_ifname[0]) {
2035 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2037 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2038 sizeof(wpa_s->pending_interface_name));
2040 os_strlcpy(wpa_s->pending_interface_name, ifname,
2041 sizeof(wpa_s->pending_interface_name));
2042 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2043 MACSTR, wpa_s->pending_interface_name,
2044 MAC2STR(wpa_s->pending_interface_addr));
2050 static void wpas_p2p_remove_pending_group_interface(
2051 struct wpa_supplicant *wpa_s)
2053 if (!wpa_s->pending_interface_name[0] ||
2054 is_zero_ether_addr(wpa_s->pending_interface_addr))
2055 return; /* No pending virtual interface */
2057 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2058 wpa_s->pending_interface_name);
2059 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2060 wpa_s->pending_interface_name);
2061 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2062 wpa_s->pending_interface_name[0] = '\0';
2063 wpa_s->global->pending_group_iface_for_p2ps = 0;
2067 static struct wpa_supplicant *
2068 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2070 struct wpa_interface iface;
2071 struct wpa_supplicant *group_wpa_s;
2073 if (!wpa_s->pending_interface_name[0]) {
2074 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2075 if (!wpas_p2p_create_iface(wpa_s))
2078 * Something has forced us to remove the pending interface; try
2079 * to create a new one and hope for the best that we will get
2080 * the same local address.
2082 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2083 WPA_IF_P2P_CLIENT) < 0)
2087 os_memset(&iface, 0, sizeof(iface));
2088 iface.ifname = wpa_s->pending_interface_name;
2089 iface.driver = wpa_s->driver->name;
2090 if (wpa_s->conf->ctrl_interface == NULL &&
2091 wpa_s->parent != wpa_s &&
2093 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2094 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2096 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2097 iface.driver_param = wpa_s->conf->driver_param;
2098 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2099 if (group_wpa_s == NULL) {
2100 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2101 "wpa_supplicant interface");
2104 wpa_s->pending_interface_name[0] = '\0';
2105 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2106 P2P_GROUP_INTERFACE_CLIENT;
2107 wpa_s->global->p2p_group_formation = group_wpa_s;
2108 wpa_s->global->pending_group_iface_for_p2ps = 0;
2110 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2116 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2119 struct wpa_supplicant *wpa_s = eloop_ctx;
2120 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2121 wpas_p2p_group_formation_failed(wpa_s, 0);
2125 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2126 int already_deleted)
2128 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2129 wpa_s->p2pdev, NULL);
2130 if (wpa_s->global->p2p)
2131 p2p_group_formation_failed(wpa_s->global->p2p);
2132 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2136 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2138 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2139 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2140 wpa_s->p2pdev, NULL);
2141 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2142 wpa_s->p2pdev, NULL);
2143 wpa_s->global->p2p_fail_on_wps_complete = 0;
2147 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2149 if (wpa_s->global->p2p_group_formation != wpa_s)
2151 /* Speed up group formation timeout since this cannot succeed */
2152 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2153 wpa_s->p2pdev, NULL);
2154 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2155 wpa_s->p2pdev, NULL);
2159 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2161 struct wpa_supplicant *wpa_s = ctx;
2163 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2164 wpa_drv_cancel_remain_on_channel(wpa_s);
2165 wpa_s->off_channel_freq = 0;
2166 wpa_s->roc_waiting_drv_freq = 0;
2170 wpa_msg_global(wpa_s, MSG_INFO,
2171 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2173 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2174 wpas_p2p_remove_pending_group_interface(wpa_s);
2178 if (!res->role_go) {
2179 /* Inform driver of the operating channel of GO. */
2180 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2183 if (wpa_s->p2p_go_ht40)
2185 if (wpa_s->p2p_go_vht)
2187 res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2188 res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2190 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2191 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2193 res->role_go ? "GO" : "client", res->freq, res->ht40,
2194 MAC2STR(res->peer_device_addr),
2195 MAC2STR(res->peer_interface_addr),
2196 p2p_wps_method_text(res->wps_method));
2197 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2199 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2200 struct wpa_ssid *ssid;
2201 ssid = wpa_config_get_network(wpa_s->conf,
2202 wpa_s->p2p_persistent_id);
2203 if (ssid && ssid->disabled == 2 &&
2204 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2205 size_t len = os_strlen(ssid->passphrase);
2206 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2207 "on requested persistent group");
2208 os_memcpy(res->passphrase, ssid->passphrase, len);
2209 res->passphrase[len] = '\0';
2213 if (wpa_s->create_p2p_iface) {
2214 struct wpa_supplicant *group_wpa_s =
2215 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2216 if (group_wpa_s == NULL) {
2217 wpas_p2p_remove_pending_group_interface(wpa_s);
2218 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2220 wpas_p2p_group_formation_failed(wpa_s, 1);
2223 if (group_wpa_s != wpa_s) {
2224 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2225 sizeof(group_wpa_s->p2p_pin));
2226 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2228 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2229 wpa_s->pending_interface_name[0] = '\0';
2230 group_wpa_s->p2p_in_provisioning = 1;
2233 wpas_start_wps_go(group_wpa_s, res, 1);
2235 os_get_reltime(&group_wpa_s->scan_min_time);
2236 wpas_start_wps_enrollee(group_wpa_s, res);
2239 wpa_s->p2p_in_provisioning = 1;
2240 wpa_s->global->p2p_group_formation = wpa_s;
2243 wpas_start_wps_go(wpa_s, res, 1);
2245 os_get_reltime(&wpa_s->scan_min_time);
2246 wpas_start_wps_enrollee(ctx, res);
2250 wpa_s->p2p_long_listen = 0;
2251 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2253 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2254 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2255 (res->peer_config_timeout % 100) * 10000,
2256 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2260 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2263 struct wpa_supplicant *wpa_s = ctx;
2264 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2265 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2266 dev_passwd_id, go_intent);
2268 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2272 static void wpas_dev_found(void *ctx, const u8 *addr,
2273 const struct p2p_peer_info *info,
2276 #ifndef CONFIG_NO_STDOUT_DEBUG
2277 struct wpa_supplicant *wpa_s = ctx;
2278 char devtype[WPS_DEV_TYPE_BUFSIZE];
2279 char *wfd_dev_info_hex = NULL;
2281 #ifdef CONFIG_WIFI_DISPLAY
2282 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2283 WFD_SUBELEM_DEVICE_INFO);
2284 #endif /* CONFIG_WIFI_DISPLAY */
2286 if (info->p2ps_instance) {
2288 const u8 *buf = wpabuf_head(info->p2ps_instance);
2289 size_t len = wpabuf_len(info->p2ps_instance);
2296 if (len < 4 + 2 + 1)
2298 id = WPA_GET_LE32(buf);
2300 methods = WPA_GET_BE16(buf);
2303 if (str_len > len - 4 - 2 - 1)
2305 os_memcpy(str, buf, str_len);
2306 str[str_len] = '\0';
2308 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2310 wpa_msg_global(wpa_s, MSG_INFO,
2311 P2P_EVENT_DEVICE_FOUND MACSTR
2312 " p2p_dev_addr=" MACSTR
2313 " pri_dev_type=%s name='%s'"
2314 " config_methods=0x%x"
2317 " adv_id=%x asp_svc=%s%s",
2319 MAC2STR(info->p2p_device_addr),
2320 wps_dev_type_bin2str(
2322 devtype, sizeof(devtype)),
2323 info->device_name, methods,
2324 info->dev_capab, info->group_capab,
2326 info->vendor_elems ?
2327 " vendor_elems=1" : "");
2332 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2333 " p2p_dev_addr=" MACSTR
2334 " pri_dev_type=%s name='%s' config_methods=0x%x "
2335 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2336 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2337 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2339 info->device_name, info->config_methods,
2340 info->dev_capab, info->group_capab,
2341 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2342 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2343 info->vendor_elems ? " vendor_elems=1" : "",
2347 os_free(wfd_dev_info_hex);
2348 #endif /* CONFIG_NO_STDOUT_DEBUG */
2350 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2354 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2356 struct wpa_supplicant *wpa_s = ctx;
2358 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2359 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2361 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2365 static void wpas_find_stopped(void *ctx)
2367 struct wpa_supplicant *wpa_s = ctx;
2368 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2369 wpas_notify_p2p_find_stopped(wpa_s);
2373 struct wpas_p2p_listen_work {
2375 unsigned int duration;
2376 struct wpabuf *probe_resp_ie;
2380 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2384 wpabuf_free(lwork->probe_resp_ie);
2389 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2391 struct wpas_p2p_listen_work *lwork;
2393 if (!wpa_s->p2p_listen_work)
2396 lwork = wpa_s->p2p_listen_work->ctx;
2397 wpas_p2p_listen_work_free(lwork);
2398 radio_work_done(wpa_s->p2p_listen_work);
2399 wpa_s->p2p_listen_work = NULL;
2403 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2405 struct wpa_supplicant *wpa_s = work->wpa_s;
2406 struct wpas_p2p_listen_work *lwork = work->ctx;
2407 unsigned int duration;
2410 if (work->started) {
2411 wpa_s->p2p_listen_work = NULL;
2412 wpas_stop_listen(wpa_s);
2414 wpas_p2p_listen_work_free(lwork);
2418 wpa_s->p2p_listen_work = work;
2420 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2422 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2423 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2424 "report received Probe Request frames");
2425 wpas_p2p_listen_work_done(wpa_s);
2429 wpa_s->pending_listen_freq = lwork->freq;
2430 wpa_s->pending_listen_duration = lwork->duration;
2432 duration = lwork->duration;
2433 #ifdef CONFIG_TESTING_OPTIONS
2434 if (wpa_s->extra_roc_dur) {
2435 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2436 duration, duration + wpa_s->extra_roc_dur);
2437 duration += wpa_s->extra_roc_dur;
2439 #endif /* CONFIG_TESTING_OPTIONS */
2441 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2442 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2443 "to remain on channel (%u MHz) for Listen "
2444 "state", lwork->freq);
2445 wpas_p2p_listen_work_done(wpa_s);
2446 wpa_s->pending_listen_freq = 0;
2449 wpa_s->off_channel_freq = 0;
2450 wpa_s->roc_waiting_drv_freq = lwork->freq;
2454 static int wpas_start_listen(void *ctx, unsigned int freq,
2455 unsigned int duration,
2456 const struct wpabuf *probe_resp_ie)
2458 struct wpa_supplicant *wpa_s = ctx;
2459 struct wpas_p2p_listen_work *lwork;
2461 if (wpa_s->p2p_listen_work) {
2462 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2466 lwork = os_zalloc(sizeof(*lwork));
2470 lwork->duration = duration;
2471 if (probe_resp_ie) {
2472 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2473 if (lwork->probe_resp_ie == NULL) {
2474 wpas_p2p_listen_work_free(lwork);
2479 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2481 wpas_p2p_listen_work_free(lwork);
2489 static void wpas_stop_listen(void *ctx)
2491 struct wpa_supplicant *wpa_s = ctx;
2492 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2493 wpa_drv_cancel_remain_on_channel(wpa_s);
2494 wpa_s->off_channel_freq = 0;
2495 wpa_s->roc_waiting_drv_freq = 0;
2497 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2500 * Don't cancel Probe Request RX reporting for a connected P2P Client
2501 * handling Probe Request frames.
2503 if (!wpa_s->p2p_cli_probe)
2504 wpa_drv_probe_req_report(wpa_s, 0);
2506 wpas_p2p_listen_work_done(wpa_s);
2510 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2513 struct wpa_supplicant *wpa_s = ctx;
2514 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2519 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2520 const u8 *peer, const char *params,
2521 unsigned int generated_pin)
2523 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2524 " %08d%s", MAC2STR(peer), generated_pin, params);
2528 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2529 const u8 *peer, const char *params)
2531 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2532 "%s", MAC2STR(peer), params);
2536 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2537 const u8 *dev_addr, const u8 *pri_dev_type,
2538 const char *dev_name, u16 supp_config_methods,
2539 u8 dev_capab, u8 group_capab, const u8 *group_id,
2540 size_t group_id_len)
2542 struct wpa_supplicant *wpa_s = ctx;
2543 char devtype[WPS_DEV_TYPE_BUFSIZE];
2545 u8 empty_dev_type[8];
2546 unsigned int generated_pin = 0;
2547 struct wpa_supplicant *group = NULL;
2551 for (group = wpa_s->global->ifaces; group; group = group->next)
2553 struct wpa_ssid *s = group->current_ssid;
2555 s->mode == WPAS_MODE_P2P_GO &&
2556 group_id_len - ETH_ALEN == s->ssid_len &&
2557 os_memcmp(group_id + ETH_ALEN, s->ssid,
2563 if (pri_dev_type == NULL) {
2564 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2565 pri_dev_type = empty_dev_type;
2567 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2568 " pri_dev_type=%s name='%s' config_methods=0x%x "
2569 "dev_capab=0x%x group_capab=0x%x%s%s",
2571 wps_dev_type_bin2str(pri_dev_type, devtype,
2573 dev_name, supp_config_methods, dev_capab, group_capab,
2574 group ? " group=" : "",
2575 group ? group->ifname : "");
2576 if (os_snprintf_error(sizeof(params), res))
2577 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2578 params[sizeof(params) - 1] = '\0';
2580 if (config_methods & WPS_CONFIG_DISPLAY) {
2581 if (wps_generate_pin(&generated_pin) < 0) {
2582 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2583 wpas_notify_p2p_provision_discovery(
2584 wpa_s, peer, 0 /* response */,
2585 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2588 wpas_prov_disc_local_display(wpa_s, peer, params,
2590 } else if (config_methods & WPS_CONFIG_KEYPAD)
2591 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2592 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2593 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2594 MACSTR "%s", MAC2STR(peer), params);
2596 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2597 P2P_PROV_DISC_SUCCESS,
2598 config_methods, generated_pin);
2602 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2604 struct wpa_supplicant *wpa_s = ctx;
2605 unsigned int generated_pin = 0;
2608 if (wpa_s->pending_pd_before_join &&
2609 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2610 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2611 wpa_s->pending_pd_before_join = 0;
2612 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2613 "join-existing-group operation");
2614 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2618 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2619 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2622 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2623 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2624 if (os_snprintf_error(sizeof(params), res))
2625 params[sizeof(params) - 1] = '\0';
2629 if (config_methods & WPS_CONFIG_DISPLAY)
2630 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2631 else if (config_methods & WPS_CONFIG_KEYPAD) {
2632 if (wps_generate_pin(&generated_pin) < 0) {
2633 wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2634 wpas_notify_p2p_provision_discovery(
2635 wpa_s, peer, 0 /* response */,
2636 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2639 wpas_prov_disc_local_display(wpa_s, peer, params,
2641 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2642 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2643 MACSTR "%s", MAC2STR(peer), params);
2645 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2646 P2P_PROV_DISC_SUCCESS,
2647 config_methods, generated_pin);
2651 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2652 enum p2p_prov_disc_status status,
2653 u32 adv_id, const u8 *adv_mac,
2654 const char *deferred_session_resp)
2656 struct wpa_supplicant *wpa_s = ctx;
2658 if (wpa_s->p2p_fallback_to_go_neg) {
2659 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2660 "failed - fall back to GO Negotiation");
2661 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
2662 P2P_EVENT_FALLBACK_TO_GO_NEG
2663 "reason=PD-failed");
2664 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2668 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2669 wpa_s->pending_pd_before_join = 0;
2670 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2671 "join-existing-group operation (no ACK for PD "
2673 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2677 if (adv_id && adv_mac && deferred_session_resp) {
2678 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2679 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2680 " deferred_session_resp='%s'",
2681 MAC2STR(peer), status, adv_id,
2682 deferred_session_resp);
2683 } else if (adv_id && adv_mac) {
2684 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2685 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2686 MAC2STR(peer), status, adv_id);
2688 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2689 " p2p_dev_addr=" MACSTR " status=%d",
2690 MAC2STR(peer), status);
2693 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2698 static int freq_included(struct wpa_supplicant *wpa_s,
2699 const struct p2p_channels *channels,
2702 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2703 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2709 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2711 unsigned int num = P2P_MAX_CHANNELS;
2715 p2p_go_dump_common_freqs(wpa_s);
2716 common_freqs = os_calloc(num, sizeof(int));
2720 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2722 wpa_dbg(wpa_s, MSG_DEBUG,
2723 "P2P: Failed to get group common freqs");
2724 os_free(common_freqs);
2728 os_free(wpa_s->p2p_group_common_freqs);
2729 wpa_s->p2p_group_common_freqs = common_freqs;
2730 wpa_s->p2p_group_common_freqs_num = num;
2731 p2p_go_dump_common_freqs(wpa_s);
2736 * Check if the given frequency is one of the possible operating frequencies
2737 * set after the completion of the GO Negotiation.
2739 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2743 p2p_go_dump_common_freqs(wpa_s);
2745 /* assume no restrictions */
2746 if (!wpa_s->p2p_group_common_freqs_num)
2749 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2750 if (wpa_s->p2p_group_common_freqs[i] == freq)
2757 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2758 struct sta_info *sta, void *ctx)
2760 int *ecsa_support = ctx;
2762 *ecsa_support &= sta->ecsa_supported;
2768 /* Check if all the peers support eCSA */
2769 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2771 int ecsa_support = 1;
2773 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2776 return ecsa_support;
2781 * Pick the best frequency to use from all the currently used frequencies.
2783 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2784 struct wpa_used_freq_data *freqs,
2789 /* find a candidate freq that is supported by P2P */
2790 for (c = 0; c < num; c++)
2791 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2797 /* once we have a candidate, try to find a 'better' one */
2798 for (i = c + 1; i < num; i++) {
2799 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2803 * 1. Infrastructure station interfaces have higher preference.
2804 * 2. P2P Clients have higher preference.
2807 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2812 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2815 return freqs[c].freq;
2819 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2820 const u8 *go_dev_addr, const u8 *ssid,
2821 size_t ssid_len, int *go, u8 *group_bssid,
2822 int *force_freq, int persistent_group,
2823 const struct p2p_channels *channels,
2826 struct wpa_supplicant *wpa_s = ctx;
2828 struct wpa_used_freq_data *freqs;
2829 struct wpa_supplicant *grp;
2832 if (!persistent_group) {
2833 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2834 " to join an active group (SSID: %s)",
2835 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2836 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2837 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2839 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2840 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2841 "authorized invitation");
2845 #ifdef CONFIG_WPS_NFC
2846 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2847 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2848 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2849 wpa_s->p2p_wps_method = WPS_NFC;
2850 wpa_s->pending_join_wps_method = WPS_NFC;
2851 os_memcpy(wpa_s->pending_join_dev_addr,
2852 go_dev_addr, ETH_ALEN);
2853 os_memcpy(wpa_s->pending_join_iface_addr,
2857 #endif /* CONFIG_WPS_NFC */
2860 * Do not accept the invitation automatically; notify user and
2863 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2866 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2868 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2869 "running persistent group");
2871 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2875 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2876 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2877 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2878 "invitation to re-invoke a persistent group");
2879 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2880 } else if (!wpa_s->conf->persistent_reconnect)
2881 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2883 for (s = wpa_s->conf->ssid; s; s = s->next) {
2884 if (s->disabled == 2 &&
2885 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2886 s->ssid_len == ssid_len &&
2887 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2892 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2893 " requested reinvocation of an unknown group",
2895 return P2P_SC_FAIL_UNKNOWN_GROUP;
2898 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2900 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2901 wpa_printf(MSG_DEBUG, "P2P: The only available "
2902 "interface is already in use - reject "
2904 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2906 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2907 } else if (s->mode == WPAS_MODE_P2P_GO) {
2909 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2911 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2912 "interface address for the group");
2913 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2915 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2920 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2923 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2924 sizeof(struct wpa_used_freq_data));
2926 int num_channels = wpa_s->num_multichan_concurrent;
2927 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2928 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2932 /* Get one of the frequencies currently in use */
2933 if (best_freq > 0) {
2934 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2935 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2937 if (wpa_s->num_multichan_concurrent < 2 ||
2938 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2939 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2940 *force_freq = best_freq;
2944 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2945 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2947 /* We are the client */
2948 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2949 "running a GO but we are capable of MCC, "
2950 "figure out the best channel to use");
2952 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2953 /* We are the GO, and *force_freq is not in the
2955 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2956 "in intersection but we are capable of MCC, "
2957 "figure out the best channel to use",
2963 return P2P_SC_SUCCESS;
2967 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2968 const u8 *ssid, size_t ssid_len,
2969 const u8 *go_dev_addr, u8 status,
2972 struct wpa_supplicant *wpa_s = ctx;
2975 for (s = wpa_s->conf->ssid; s; s = s->next) {
2976 if (s->disabled == 2 &&
2977 s->ssid_len == ssid_len &&
2978 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2982 if (status == P2P_SC_SUCCESS) {
2983 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2984 " was accepted; op_freq=%d MHz, SSID=%s",
2985 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2987 int go = s->mode == WPAS_MODE_P2P_GO;
2988 wpas_p2p_group_add_persistent(
2989 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
2990 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2993 wpa_s->user_initiated_pd = 0;
2994 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2995 wpa_s->p2p_wps_method, 0, op_freq,
3001 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3002 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3003 " was rejected (status %u)", MAC2STR(sa), status);
3009 wpa_msg_global(wpa_s, MSG_INFO,
3010 P2P_EVENT_INVITATION_RECEIVED
3011 "sa=" MACSTR " go_dev_addr=" MACSTR
3012 " bssid=" MACSTR " unknown-network",
3013 MAC2STR(sa), MAC2STR(go_dev_addr),
3016 wpa_msg_global(wpa_s, MSG_INFO,
3017 P2P_EVENT_INVITATION_RECEIVED
3018 "sa=" MACSTR " go_dev_addr=" MACSTR
3020 MAC2STR(sa), MAC2STR(go_dev_addr));
3022 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3027 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3028 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3029 "sa=" MACSTR " persistent=%d freq=%d",
3030 MAC2STR(sa), s->id, op_freq);
3032 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3033 "sa=" MACSTR " persistent=%d",
3034 MAC2STR(sa), s->id);
3036 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3041 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3042 struct wpa_ssid *ssid,
3043 const u8 *peer, int inv)
3046 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3051 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3052 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3056 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3057 if (ssid->mode != WPAS_MODE_P2P_GO &&
3058 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3059 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3060 "due to invitation result", ssid->id);
3061 wpas_notify_network_removed(wpa_s, ssid);
3062 wpa_config_remove_network(wpa_s->conf, ssid->id);
3065 return; /* Peer not found in client list */
3068 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3069 "group %d client list%s",
3070 MAC2STR(peer), ssid->id,
3071 inv ? " due to invitation result" : "");
3072 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3073 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3074 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3075 ssid->num_p2p_clients--;
3076 if (p2p_wpa_s->conf->update_config &&
3077 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3078 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3082 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3085 struct wpa_ssid *ssid;
3087 wpa_s = wpa_s->global->p2p_invite_group;
3089 return; /* No known invitation group */
3090 ssid = wpa_s->current_ssid;
3091 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3092 !ssid->p2p_persistent_group)
3093 return; /* Not operating as a GO in persistent group */
3094 ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
3095 ssid->ssid, ssid->ssid_len);
3096 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3100 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3101 const struct p2p_channels *channels,
3102 const u8 *peer, int neg_freq,
3105 struct wpa_supplicant *wpa_s = ctx;
3106 struct wpa_ssid *ssid;
3110 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3111 "status=%d " MACSTR,
3112 status, MAC2STR(bssid));
3114 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3115 "status=%d ", status);
3117 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3119 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3120 status, MAC2STR(peer));
3121 if (wpa_s->pending_invite_ssid_id == -1) {
3122 struct wpa_supplicant *group_if =
3123 wpa_s->global->p2p_invite_group;
3125 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3126 wpas_remove_persistent_client(wpa_s, peer);
3129 * Invitation to an active group. If this is successful and we
3130 * are the GO, set the client wait to postpone some concurrent
3131 * operations and to allow provisioning and connection to happen
3134 if (status == P2P_SC_SUCCESS &&
3135 group_if && group_if->current_ssid &&
3136 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3137 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3138 #ifdef CONFIG_TESTING_OPTIONS
3139 if (group_if->p2p_go_csa_on_inv) {
3140 wpa_printf(MSG_DEBUG,
3141 "Testing: force P2P GO CSA after invitation");
3142 eloop_cancel_timeout(
3143 wpas_p2p_reconsider_moving_go,
3145 eloop_register_timeout(
3147 wpas_p2p_reconsider_moving_go,
3150 #endif /* CONFIG_TESTING_OPTIONS */
3155 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3156 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3157 "invitation exchange to indicate readiness for "
3161 if (status != P2P_SC_SUCCESS) {
3162 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3163 ssid = wpa_config_get_network(
3164 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3165 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3167 wpas_p2p_remove_pending_group_interface(wpa_s);
3171 ssid = wpa_config_get_network(wpa_s->conf,
3172 wpa_s->pending_invite_ssid_id);
3174 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3175 "data matching with invitation");
3180 * The peer could have missed our ctrl::ack frame for Invitation
3181 * Response and continue retransmitting the frame. To reduce the
3182 * likelihood of the peer not getting successful TX status for the
3183 * Invitation Response frame, wait a short time here before starting
3184 * the persistent group so that we will remain on the current channel to
3185 * acknowledge any possible retransmission from the peer.
3187 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3188 "starting persistent group");
3191 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3192 freq_included(wpa_s, channels, neg_freq))
3194 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3195 freq_included(wpa_s, channels, peer_oper_freq))
3196 freq = peer_oper_freq;
3200 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3201 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3202 wpas_p2p_group_add_persistent(wpa_s, ssid,
3203 ssid->mode == WPAS_MODE_P2P_GO,
3204 wpa_s->p2p_persistent_go_freq,
3206 wpa_s->p2p_go_vht_center_freq2,
3207 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3208 wpa_s->p2p_go_max_oper_chwidth,
3210 ssid->mode == WPAS_MODE_P2P_GO ?
3211 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3216 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3219 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3221 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3225 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3227 reg->channel[reg->channels] = chan;
3232 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3233 struct p2p_channels *chan,
3234 struct p2p_channels *cli_chan)
3238 wpa_s->global->p2p_24ghz_social_channels = 1;
3240 os_memset(cli_chan, 0, sizeof(*cli_chan));
3242 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3245 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3246 chan->reg_class[cla].reg_class = 81;
3247 chan->reg_class[cla].channels = 0;
3248 for (i = 0; i < 11; i++) {
3249 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3250 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3252 if (chan->reg_class[cla].channels)
3255 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3258 /* Operating class 115 - 5 GHz, channels 36-48 */
3259 chan->reg_class[cla].reg_class = 115;
3260 chan->reg_class[cla].channels = 0;
3261 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3262 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3263 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3264 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3265 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3266 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3267 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3268 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3269 if (chan->reg_class[cla].channels)
3272 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3275 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3276 chan->reg_class[cla].reg_class = 124;
3277 chan->reg_class[cla].channels = 0;
3278 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3279 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3280 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3281 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3282 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3283 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3284 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3285 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3286 if (chan->reg_class[cla].channels)
3289 chan->reg_classes = cla;
3295 NOT_ALLOWED, NO_IR, ALLOWED
3298 static int has_channel(struct wpa_global *global,
3299 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3304 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3306 if (wpas_p2p_disallowed_freq(global, freq))
3309 for (i = 0; i < mode->num_channels; i++) {
3310 if (mode->channels[i].chan == chan) {
3312 *flags = mode->channels[i].flag;
3313 if (mode->channels[i].flag &
3314 (HOSTAPD_CHAN_DISABLED |
3315 HOSTAPD_CHAN_RADAR))
3317 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3327 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3328 struct hostapd_hw_modes *mode,
3331 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3334 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3337 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3339 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3340 * so the center channel is 6 channels away from the start/end.
3342 if (channel >= center_channels[i] - 6 &&
3343 channel <= center_channels[i] + 6)
3344 return center_channels[i];
3350 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3351 struct hostapd_hw_modes *mode,
3356 enum chan_allowed res, ret = ALLOWED;
3358 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3361 if (center_chan >= 58 && center_chan <= 138)
3362 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3364 /* check all the channels are available */
3365 for (i = 0; i < 4; i++) {
3366 int adj_chan = center_chan - 6 + i * 4;
3368 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3369 if (res == NOT_ALLOWED)
3374 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3376 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3378 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3380 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3388 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3389 struct hostapd_hw_modes *mode,
3392 u8 center_channels[] = { 50, 114 };
3395 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3398 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3400 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3401 * so the center channel is 14 channels away from the start/end.
3403 if (channel >= center_channels[i] - 14 &&
3404 channel <= center_channels[i] + 14)
3405 return center_channels[i];
3411 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3412 struct hostapd_hw_modes *mode,
3417 enum chan_allowed res, ret = ALLOWED;
3419 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3422 /* VHT 160 MHz uses DFS channels in most countries. */
3424 /* Check all the channels are available */
3425 for (i = 0; i < 8; i++) {
3426 int adj_chan = center_chan - 14 + i * 4;
3428 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3429 if (res == NOT_ALLOWED)
3435 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3437 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3439 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3441 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3443 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3445 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3447 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3449 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3457 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3458 struct hostapd_hw_modes *mode,
3462 enum chan_allowed res, res2;
3464 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3465 if (bw == BW40MINUS) {
3466 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3468 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3469 } else if (bw == BW40PLUS) {
3470 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3472 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3473 } else if (bw == BW80) {
3474 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3475 } else if (bw == BW160) {
3476 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3479 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3481 if (res == NO_IR || res2 == NO_IR)
3487 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3488 struct p2p_channels *chan,
3489 struct p2p_channels *cli_chan)
3491 struct hostapd_hw_modes *mode;
3492 int cla, op, cli_cla;
3494 if (wpa_s->hw.modes == NULL) {
3495 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3496 "of all supported channels; assume dualband "
3498 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3503 for (op = 0; global_op_class[op].op_class; op++) {
3504 const struct oper_class_map *o = &global_op_class[op];
3506 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3508 if (o->p2p == NO_P2P_SUPP)
3511 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3514 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3515 wpa_s->global->p2p_24ghz_social_channels = 1;
3516 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3517 enum chan_allowed res;
3518 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3519 if (res == ALLOWED) {
3521 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3523 reg = &chan->reg_class[cla];
3525 reg->reg_class = o->op_class;
3527 reg->channel[reg->channels] = ch;
3529 } else if (res == NO_IR &&
3530 wpa_s->conf->p2p_add_cli_chan) {
3531 if (cli_reg == NULL) {
3532 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3534 cli_reg = &cli_chan->reg_class[cli_cla];
3536 cli_reg->reg_class = o->op_class;
3538 cli_reg->channel[cli_reg->channels] = ch;
3539 cli_reg->channels++;
3543 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3544 reg->channel, reg->channels);
3547 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3548 cli_reg->channel, cli_reg->channels);
3552 chan->reg_classes = cla;
3553 cli_chan->reg_classes = cli_cla;
3559 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3560 struct hostapd_hw_modes *mode, u8 channel)
3563 enum chan_allowed ret;
3565 for (op = 0; global_op_class[op].op_class; op++) {
3566 const struct oper_class_map *o = &global_op_class[op];
3569 if (o->p2p == NO_P2P_SUPP)
3572 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3573 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3574 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3577 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3579 return (o->bw == BW40MINUS) ? -1 : 1;
3586 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3587 struct hostapd_hw_modes *mode, u8 channel)
3589 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3592 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3596 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3597 struct hostapd_hw_modes *mode, u8 channel)
3599 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3601 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3605 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3608 struct wpa_supplicant *wpa_s = ctx;
3610 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3611 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3617 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3621 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3622 const u8 *ssid, size_t ssid_len)
3624 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3625 struct wpa_ssid *s = wpa_s->current_ssid;
3628 if (s->mode != WPAS_MODE_P2P_GO &&
3629 s->mode != WPAS_MODE_AP &&
3630 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3632 if (s->ssid_len != ssid_len ||
3633 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3643 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3644 const u8 *peer_dev_addr)
3646 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3647 struct wpa_ssid *ssid = wpa_s->current_ssid;
3648 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3650 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3658 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3660 struct wpa_supplicant *wpa_s = ctx;
3662 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3666 static int wpas_is_concurrent_session_active(void *ctx)
3668 struct wpa_supplicant *wpa_s = ctx;
3669 struct wpa_supplicant *ifs;
3671 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3674 if (ifs->wpa_state > WPA_ASSOCIATED)
3681 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3683 struct wpa_supplicant *wpa_s = ctx;
3684 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3688 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3689 const char *conf_p2p_dev)
3691 struct wpa_interface iface;
3692 struct wpa_supplicant *p2pdev_wpa_s;
3694 char force_name[100];
3697 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3699 if (os_snprintf_error(sizeof(ifname), ret))
3701 force_name[0] = '\0';
3702 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3703 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3704 force_name, wpa_s->pending_interface_addr, NULL);
3706 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3709 os_strlcpy(wpa_s->pending_interface_name, ifname,
3710 sizeof(wpa_s->pending_interface_name));
3712 os_memset(&iface, 0, sizeof(iface));
3714 iface.ifname = wpa_s->pending_interface_name;
3715 iface.driver = wpa_s->driver->name;
3716 iface.driver_param = wpa_s->conf->driver_param;
3719 * If a P2P Device configuration file was given, use it as the interface
3720 * configuration file (instead of using parent's configuration file.
3723 iface.confname = conf_p2p_dev;
3724 iface.ctrl_interface = NULL;
3726 iface.confname = wpa_s->confname;
3727 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3730 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3731 if (!p2pdev_wpa_s) {
3732 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3736 wpa_s->pending_interface_name[0] = '\0';
3741 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3742 const u8 *noa, size_t noa_len)
3744 struct wpa_supplicant *wpa_s, *intf = ctx;
3747 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3748 if (wpa_s->waiting_presence_resp)
3752 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3755 wpa_s->waiting_presence_resp = 0;
3757 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3758 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3759 " status=%u noa=%s", MAC2STR(src), status, hex);
3763 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3764 size_t ssid_len, u8 *go_dev_addr,
3765 u8 *ret_ssid, size_t *ret_ssid_len,
3766 u8 *intended_iface_addr)
3768 struct wpa_supplicant *wpa_s = ctx;
3771 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3773 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3774 *ret_ssid_len = s->ssid_len;
3775 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3777 if (s->mode != WPAS_MODE_P2P_GO) {
3778 os_memset(intended_iface_addr, 0, ETH_ALEN);
3779 } else if (wpas_p2p_create_iface(wpa_s)) {
3780 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3783 os_memcpy(intended_iface_addr,
3784 wpa_s->pending_interface_addr, ETH_ALEN);
3786 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3796 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3797 u8 *ssid, size_t *ssid_len, int *group_iface,
3800 struct wpa_supplicant *wpa_s = ctx;
3801 struct wpa_supplicant *go;
3805 * group_iface will be set to 1 only if a dedicated interface for P2P
3806 * role is required. First, we try to reuse an active GO. However,
3807 * if it is not present, we will try to reactivate an existing
3808 * persistent group and set group_iface to 1, so the caller will know
3809 * that the pending interface should be used.
3816 go = wpas_p2p_get_go_group(wpa_s);
3818 s = wpas_p2p_get_persistent_go(wpa_s);
3819 *group_iface = wpas_p2p_create_iface(wpa_s);
3821 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3825 s = go->current_ssid;
3826 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3828 *freq = go->assoc_freq;
3831 os_memcpy(ssid, s->ssid, s->ssid_len);
3832 *ssid_len = s->ssid_len;
3838 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3839 const u8 *ssid, size_t ssid_len)
3841 struct wpa_supplicant *wpa_s = ctx;
3843 int save_config = 0;
3846 /* Start with our first choice of Persistent Groups */
3847 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3848 if (go && ssid && ssid_len &&
3849 s->ssid_len == ssid_len &&
3850 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3851 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3854 /* Remove stale persistent group */
3855 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3856 wpa_config_remove_network(wpa_s->conf, s->id);
3861 for (i = 0; i < s->num_p2p_clients; i++) {
3862 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3863 peer, ETH_ALEN) != 0)
3866 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3867 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3868 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3871 s->num_p2p_clients--;
3876 p2p_config_write(wpa_s);
3878 /* Return TRUE if valid SSID remains */
3883 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3884 const u8 *feat_cap, size_t feat_cap_len)
3886 static const char pref[] = " feature_cap=";
3892 * We expect a feature capability to contain at least one byte to be
3893 * reported. The string buffer provided by the caller function is
3894 * expected to be big enough to contain all bytes of the attribute for
3895 * known specifications. This function truncates the reported bytes if
3896 * the feature capability data exceeds the string buffer size.
3898 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3901 os_memcpy(buf, pref, sizeof(pref));
3902 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3903 buf_len - sizeof(pref) + 1,
3904 feat_cap, feat_cap_len);
3906 if (ret != (2 * (int) feat_cap_len))
3907 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3911 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3912 const u8 *adv_mac, const u8 *ses_mac,
3913 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3914 u8 conncap, int passwd_id,
3915 const u8 *persist_ssid,
3916 size_t persist_ssid_size, int response_done,
3917 int prov_start, const char *session_info,
3918 const u8 *feat_cap, size_t feat_cap_len,
3920 const u8 *group_ssid, size_t group_ssid_len)
3922 struct wpa_supplicant *wpa_s = ctx;
3924 struct wpa_ssid *persistent_go, *stale, *s = NULL;
3925 int save_config = 0;
3926 struct wpa_supplicant *go_wpa_s;
3927 char feat_cap_str[256];
3932 os_memset(mac, 0, ETH_ALEN);
3940 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3941 feat_cap, feat_cap_len);
3944 if (session_info == NULL) {
3945 wpa_msg_global(wpa_s, MSG_INFO,
3946 P2P_EVENT_P2PS_PROVISION_START MACSTR
3947 " adv_id=%x conncap=%x"
3949 " session=%x mac=" MACSTR
3950 " dev_passwd_id=%d%s",
3951 MAC2STR(dev), adv_id, conncap,
3953 ses_id, MAC2STR(ses_mac),
3954 passwd_id, feat_cap_str);
3956 wpa_msg_global(wpa_s, MSG_INFO,
3957 P2P_EVENT_P2PS_PROVISION_START MACSTR
3958 " adv_id=%x conncap=%x"
3960 " session=%x mac=" MACSTR
3961 " dev_passwd_id=%d info='%s'%s",
3962 MAC2STR(dev), adv_id, conncap,
3964 ses_id, MAC2STR(ses_mac),
3965 passwd_id, session_info, feat_cap_str);
3970 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3971 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3973 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3974 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3975 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3977 if (persistent_go && !persistent_go->num_p2p_clients) {
3978 /* remove empty persistent GO */
3979 wpa_config_remove_network(wpa_s->conf,
3983 wpa_msg_global(wpa_s, MSG_INFO,
3984 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3986 " adv_id=%x adv_mac=" MACSTR
3987 " session=%x mac=" MACSTR "%s",
3988 MAC2STR(dev), status,
3989 adv_id, MAC2STR(adv_mac),
3990 ses_id, MAC2STR(ses_mac), feat_cap_str);
3994 /* Clean up stale persistent groups with this device */
3995 if (persist_ssid && persist_ssid_size)
3996 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3999 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4000 is_zero_ether_addr(grp_mac)) {
4001 wpa_dbg(wpa_s, MSG_ERROR,
4002 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4007 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4011 if (s && s->ssid_len == stale->ssid_len &&
4012 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4013 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4016 /* Remove stale persistent group */
4017 if (stale->mode != WPAS_MODE_P2P_GO ||
4018 stale->num_p2p_clients <= 1) {
4019 wpa_config_remove_network(wpa_s->conf, stale->id);
4023 for (i = 0; i < stale->num_p2p_clients; i++) {
4024 if (os_memcmp(stale->p2p_client_list +
4026 dev, ETH_ALEN) == 0) {
4027 os_memmove(stale->p2p_client_list +
4029 stale->p2p_client_list +
4031 (stale->num_p2p_clients -
4036 stale->num_p2p_clients--;
4042 p2p_config_write(wpa_s);
4045 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4046 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4048 if (persistent_go && s != persistent_go &&
4049 !persistent_go->num_p2p_clients) {
4050 /* remove empty persistent GO */
4051 wpa_config_remove_network(wpa_s->conf,
4056 wpa_msg_global(wpa_s, MSG_INFO,
4057 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4059 " adv_id=%x adv_mac=" MACSTR
4060 " session=%x mac=" MACSTR
4062 MAC2STR(dev), status,
4063 adv_id, MAC2STR(adv_mac),
4064 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4068 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4070 * We need to copy the interface name. Simply saving a
4071 * pointer isn't enough, since if we use pending_interface_name
4072 * it will be overwritten when the group is added.
4074 char go_ifname[100];
4076 go_ifname[0] = '\0';
4078 wpa_s->global->pending_p2ps_group = 1;
4079 wpa_s->global->pending_p2ps_group_freq = freq;
4081 if (!wpas_p2p_create_iface(wpa_s))
4082 os_memcpy(go_ifname, wpa_s->ifname,
4084 else if (wpa_s->pending_interface_name[0])
4085 os_memcpy(go_ifname,
4086 wpa_s->pending_interface_name,
4089 if (!go_ifname[0]) {
4090 wpas_p2ps_prov_complete(
4091 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4092 dev, adv_mac, ses_mac,
4093 grp_mac, adv_id, ses_id, 0, 0,
4094 NULL, 0, 0, 0, NULL, NULL, 0, 0,
4099 /* If PD Resp complete, start up the GO */
4100 if (response_done && persistent_go) {
4101 wpas_p2p_group_add_persistent(
4102 wpa_s, persistent_go,
4103 0, 0, freq, 0, 0, 0, 0, NULL,
4104 persistent_go->mode ==
4106 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4108 } else if (response_done) {
4109 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4112 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4113 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4115 wpa_s->p2ps_method_config_any = 1;
4117 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4118 os_memcpy(go_ifname, go_wpa_s->ifname,
4121 if (is_zero_ether_addr(grp_mac)) {
4122 wpa_dbg(go_wpa_s, MSG_DEBUG,
4123 "P2P: Setting PIN-1 for ANY");
4124 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4125 "12345670", NULL, 0,
4128 wpa_dbg(go_wpa_s, MSG_DEBUG,
4129 "P2P: Setting PIN-1 for " MACSTR,
4131 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4132 "12345670", NULL, 0,
4136 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4137 wpa_s->p2ps_method_config_any = 1;
4140 wpa_msg_global(wpa_s, MSG_INFO,
4141 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4142 " status=%d conncap=%x"
4143 " adv_id=%x adv_mac=" MACSTR
4144 " session=%x mac=" MACSTR
4145 " dev_passwd_id=%d go=%s%s",
4146 MAC2STR(dev), status, conncap,
4147 adv_id, MAC2STR(adv_mac),
4148 ses_id, MAC2STR(ses_mac),
4149 passwd_id, go_ifname, feat_cap_str);
4153 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4154 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4156 if (persistent_go && !persistent_go->num_p2p_clients) {
4157 /* remove empty persistent GO */
4158 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4161 if (conncap == P2PS_SETUP_CLIENT) {
4162 char ssid_hex[32 * 2 + 1];
4165 wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4166 group_ssid, group_ssid_len);
4169 wpa_msg_global(wpa_s, MSG_INFO,
4170 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4171 " status=%d conncap=%x"
4172 " adv_id=%x adv_mac=" MACSTR
4173 " session=%x mac=" MACSTR
4174 " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4175 MAC2STR(dev), status, conncap,
4176 adv_id, MAC2STR(adv_mac),
4177 ses_id, MAC2STR(ses_mac),
4178 passwd_id, MAC2STR(grp_mac), feat_cap_str,
4179 group_ssid ? " group_ssid=" : "", ssid_hex);
4181 wpa_msg_global(wpa_s, MSG_INFO,
4182 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4183 " status=%d conncap=%x"
4184 " adv_id=%x adv_mac=" MACSTR
4185 " session=%x mac=" MACSTR
4186 " dev_passwd_id=%d%s",
4187 MAC2STR(dev), status, conncap,
4188 adv_id, MAC2STR(adv_mac),
4189 ses_id, MAC2STR(ses_mac),
4190 passwd_id, feat_cap_str);
4195 static int _wpas_p2p_in_progress(void *ctx)
4197 struct wpa_supplicant *wpa_s = ctx;
4198 return wpas_p2p_in_progress(wpa_s);
4202 static int wpas_prov_disc_resp_cb(void *ctx)
4204 struct wpa_supplicant *wpa_s = ctx;
4205 struct wpa_ssid *persistent_go;
4208 if (!wpa_s->global->pending_p2ps_group)
4211 freq = wpa_s->global->pending_p2ps_group_freq;
4212 wpa_s->global->pending_p2ps_group_freq = 0;
4213 wpa_s->global->pending_p2ps_group = 0;
4215 if (wpas_p2p_get_go_group(wpa_s))
4217 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4219 if (persistent_go) {
4220 wpas_p2p_group_add_persistent(
4221 wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4222 persistent_go->mode == WPAS_MODE_P2P_GO ?
4223 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4225 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4232 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4234 unsigned int *freq_list)
4236 struct wpa_supplicant *wpa_s = ctx;
4238 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4239 WPA_IF_P2P_CLIENT, len, freq_list);
4244 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4245 * @global: Pointer to global data from wpa_supplicant_init()
4246 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4247 * Returns: 0 on success, -1 on failure
4249 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4251 struct p2p_config p2p;
4254 if (wpa_s->conf->p2p_disabled)
4257 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4263 os_memset(&p2p, 0, sizeof(p2p));
4265 p2p.debug_print = wpas_p2p_debug_print;
4266 p2p.p2p_scan = wpas_p2p_scan;
4267 p2p.send_action = wpas_send_action;
4268 p2p.send_action_done = wpas_send_action_done;
4269 p2p.go_neg_completed = wpas_go_neg_completed;
4270 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4271 p2p.dev_found = wpas_dev_found;
4272 p2p.dev_lost = wpas_dev_lost;
4273 p2p.find_stopped = wpas_find_stopped;
4274 p2p.start_listen = wpas_start_listen;
4275 p2p.stop_listen = wpas_stop_listen;
4276 p2p.send_probe_resp = wpas_send_probe_resp;
4277 p2p.sd_request = wpas_sd_request;
4278 p2p.sd_response = wpas_sd_response;
4279 p2p.prov_disc_req = wpas_prov_disc_req;
4280 p2p.prov_disc_resp = wpas_prov_disc_resp;
4281 p2p.prov_disc_fail = wpas_prov_disc_fail;
4282 p2p.invitation_process = wpas_invitation_process;
4283 p2p.invitation_received = wpas_invitation_received;
4284 p2p.invitation_result = wpas_invitation_result;
4285 p2p.get_noa = wpas_get_noa;
4286 p2p.go_connected = wpas_go_connected;
4287 p2p.presence_resp = wpas_presence_resp;
4288 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4289 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4290 p2p.get_persistent_group = wpas_get_persistent_group;
4291 p2p.get_go_info = wpas_get_go_info;
4292 p2p.remove_stale_groups = wpas_remove_stale_groups;
4293 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4294 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4295 p2p.p2ps_group_capability = p2ps_group_capability;
4296 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4298 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4299 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4300 p2p.dev_name = wpa_s->conf->device_name;
4301 p2p.manufacturer = wpa_s->conf->manufacturer;
4302 p2p.model_name = wpa_s->conf->model_name;
4303 p2p.model_number = wpa_s->conf->model_number;
4304 p2p.serial_number = wpa_s->conf->serial_number;
4306 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4307 p2p.config_methods = wpa_s->wps->config_methods;
4310 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4311 wpa_printf(MSG_ERROR,
4312 "P2P: Failed to configure supported channel list");
4316 if (wpa_s->conf->p2p_listen_reg_class &&
4317 wpa_s->conf->p2p_listen_channel) {
4318 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4319 p2p.channel = wpa_s->conf->p2p_listen_channel;
4320 p2p.channel_forced = 1;
4323 * Pick one of the social channels randomly as the listen
4326 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4327 &p2p.channel) != 0) {
4328 wpa_printf(MSG_INFO,
4329 "P2P: No social channels supported by the driver - do not enable P2P");
4332 p2p.channel_forced = 0;
4334 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4335 p2p.reg_class, p2p.channel);
4337 if (wpa_s->conf->p2p_oper_reg_class &&
4338 wpa_s->conf->p2p_oper_channel) {
4339 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4340 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4341 p2p.cfg_op_channel = 1;
4342 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4343 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4347 * Use random operation channel from 2.4 GHz band social
4348 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4349 * other preference is indicated.
4351 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4352 &p2p.op_channel) != 0) {
4353 wpa_printf(MSG_ERROR,
4354 "P2P: Failed to select random social channel as operation channel");
4357 p2p.cfg_op_channel = 0;
4358 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4359 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4362 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4363 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4364 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4367 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4368 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4369 p2p.country[2] = 0x04;
4371 os_memcpy(p2p.country, "XX\x04", 3);
4373 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4376 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4377 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4378 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4380 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4381 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4383 p2p.max_peers = 100;
4385 if (wpa_s->conf->p2p_ssid_postfix) {
4386 p2p.ssid_postfix_len =
4387 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4388 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4389 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4390 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4391 p2p.ssid_postfix_len);
4394 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4396 p2p.max_listen = wpa_s->max_remain_on_chan;
4398 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4399 wpa_s->conf->p2p_passphrase_len <= 63)
4400 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4402 p2p.passphrase_len = 8;
4404 global->p2p = p2p_init(&p2p);
4405 if (global->p2p == NULL)
4407 global->p2p_init_wpa_s = wpa_s;
4409 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4410 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4412 p2p_add_wps_vendor_extension(
4413 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4416 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4423 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4424 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4426 * This function deinitialize per-interface P2P data.
4428 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4430 if (wpa_s->driver && wpa_s->drv_priv)
4431 wpa_drv_probe_req_report(wpa_s, 0);
4433 if (wpa_s->go_params) {
4434 /* Clear any stored provisioning info */
4435 p2p_clear_provisioning_info(
4437 wpa_s->go_params->peer_device_addr);
4440 os_free(wpa_s->go_params);
4441 wpa_s->go_params = NULL;
4442 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4443 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4444 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4445 wpa_s->p2p_long_listen = 0;
4446 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4447 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4448 wpas_p2p_remove_pending_group_interface(wpa_s);
4449 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4450 wpas_p2p_listen_work_done(wpa_s);
4451 if (wpa_s->p2p_send_action_work) {
4452 os_free(wpa_s->p2p_send_action_work->ctx);
4453 radio_work_done(wpa_s->p2p_send_action_work);
4454 wpa_s->p2p_send_action_work = NULL;
4456 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4458 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4459 wpa_s->p2p_oob_dev_pw = NULL;
4461 os_free(wpa_s->p2p_group_common_freqs);
4462 wpa_s->p2p_group_common_freqs = NULL;
4463 wpa_s->p2p_group_common_freqs_num = 0;
4465 /* TODO: remove group interface from the driver if this wpa_s instance
4466 * is on top of a P2P group interface */
4471 * wpas_p2p_deinit_global - Deinitialize global P2P module
4472 * @global: Pointer to global data from wpa_supplicant_init()
4474 * This function deinitializes the global (per device) P2P module.
4476 static void wpas_p2p_deinit_global(struct wpa_global *global)
4478 struct wpa_supplicant *wpa_s, *tmp;
4480 wpa_s = global->ifaces;
4482 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4484 /* Remove remaining P2P group interfaces */
4485 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4486 wpa_s = wpa_s->next;
4488 tmp = global->ifaces;
4491 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4496 /* Disconnect from the P2P group and deinit the interface */
4497 wpas_p2p_disconnect(tmp);
4501 * Deinit GO data on any possibly remaining interface (if main
4502 * interface is used as GO).
4504 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4505 if (wpa_s->ap_iface)
4506 wpas_p2p_group_deinit(wpa_s);
4509 p2p_deinit(global->p2p);
4511 global->p2p_init_wpa_s = NULL;
4515 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4517 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4518 wpa_s->conf->p2p_no_group_iface)
4519 return 0; /* separate interface disabled per configuration */
4520 if (wpa_s->drv_flags &
4521 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4522 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4523 return 1; /* P2P group requires a new interface in every case
4525 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4526 return 0; /* driver does not support concurrent operations */
4527 if (wpa_s->global->ifaces->next)
4528 return 1; /* more that one interface already in use */
4529 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4530 return 1; /* this interface is already in use */
4535 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4536 const u8 *peer_addr,
4537 enum p2p_wps_method wps_method,
4538 int go_intent, const u8 *own_interface_addr,
4539 unsigned int force_freq, int persistent_group,
4540 struct wpa_ssid *ssid, unsigned int pref_freq)
4542 if (persistent_group && wpa_s->conf->persistent_reconnect)
4543 persistent_group = 2;
4546 * Increase GO config timeout if HT40 is used since it takes some time
4547 * to scan channels for coex purposes before the BSS can be started.
4549 p2p_set_config_timeout(wpa_s->global->p2p,
4550 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4552 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4553 go_intent, own_interface_addr, force_freq,
4554 persistent_group, ssid ? ssid->ssid : NULL,
4555 ssid ? ssid->ssid_len : 0,
4556 wpa_s->p2p_pd_before_go_neg, pref_freq,
4557 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4562 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4563 const u8 *peer_addr,
4564 enum p2p_wps_method wps_method,
4565 int go_intent, const u8 *own_interface_addr,
4566 unsigned int force_freq, int persistent_group,
4567 struct wpa_ssid *ssid, unsigned int pref_freq)
4569 if (persistent_group && wpa_s->conf->persistent_reconnect)
4570 persistent_group = 2;
4572 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4573 go_intent, own_interface_addr, force_freq,
4574 persistent_group, ssid ? ssid->ssid : NULL,
4575 ssid ? ssid->ssid_len : 0, pref_freq,
4576 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4581 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4583 wpa_s->p2p_join_scan_count++;
4584 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4585 wpa_s->p2p_join_scan_count);
4586 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4587 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4588 " for join operationg - stop join attempt",
4589 MAC2STR(wpa_s->pending_join_iface_addr));
4590 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4591 if (wpa_s->p2p_auto_pd) {
4592 wpa_s->p2p_auto_pd = 0;
4593 wpa_msg_global(wpa_s, MSG_INFO,
4594 P2P_EVENT_PROV_DISC_FAILURE
4595 " p2p_dev_addr=" MACSTR " status=N/A",
4596 MAC2STR(wpa_s->pending_join_dev_addr));
4599 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4600 P2P_EVENT_GROUP_FORMATION_FAILURE);
4601 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4606 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4609 unsigned int num, i;
4610 struct wpa_used_freq_data *freqs;
4612 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4613 /* Multiple channels are supported and not all are in use */
4617 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4618 sizeof(struct wpa_used_freq_data));
4622 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4623 wpa_s->num_multichan_concurrent);
4625 for (i = 0; i < num; i++) {
4626 if (freqs[i].freq == freq) {
4627 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4634 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4643 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4644 const u8 *peer_dev_addr)
4646 struct wpa_bss *bss;
4649 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4652 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4653 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4658 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4660 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4661 "%ld.%06ld (%supdated in last scan)",
4662 bss->last_update.sec, bss->last_update.usec,
4663 updated ? "": "not ");
4669 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4670 struct wpa_scan_results *scan_res)
4672 struct wpa_bss *bss = NULL;
4674 u8 iface_addr[ETH_ALEN];
4676 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4678 if (wpa_s->global->p2p_disabled)
4681 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4682 scan_res ? (int) scan_res->num : -1,
4683 wpa_s->p2p_auto_join ? "auto_" : "");
4686 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4688 if (wpa_s->p2p_auto_pd) {
4689 int join = wpas_p2p_peer_go(wpa_s,
4690 wpa_s->pending_join_dev_addr);
4692 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4693 wpa_s->auto_pd_scan_retry++;
4694 bss = wpa_bss_get_bssid_latest(
4695 wpa_s, wpa_s->pending_join_dev_addr);
4698 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4699 "the peer " MACSTR " at %d MHz",
4700 wpa_s->auto_pd_scan_retry,
4702 pending_join_dev_addr),
4704 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4712 wpa_s->p2p_auto_pd = 0;
4713 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4714 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4715 MAC2STR(wpa_s->pending_join_dev_addr), join);
4716 if (p2p_prov_disc_req(wpa_s->global->p2p,
4717 wpa_s->pending_join_dev_addr, NULL,
4718 wpa_s->pending_pd_config_methods, join,
4719 0, wpa_s->user_initiated_pd) < 0) {
4720 wpa_s->p2p_auto_pd = 0;
4721 wpa_msg_global(wpa_s, MSG_INFO,
4722 P2P_EVENT_PROV_DISC_FAILURE
4723 " p2p_dev_addr=" MACSTR " status=N/A",
4724 MAC2STR(wpa_s->pending_join_dev_addr));
4729 if (wpa_s->p2p_auto_join) {
4730 int join = wpas_p2p_peer_go(wpa_s,
4731 wpa_s->pending_join_dev_addr);
4733 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4734 "running a GO -> use GO Negotiation");
4735 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4736 P2P_EVENT_FALLBACK_TO_GO_NEG
4737 "reason=peer-not-running-GO");
4738 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4739 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4740 wpa_s->p2p_persistent_group, 0, 0, 0,
4741 wpa_s->p2p_go_intent,
4742 wpa_s->p2p_connect_freq,
4743 wpa_s->p2p_go_vht_center_freq2,
4744 wpa_s->p2p_persistent_id,
4745 wpa_s->p2p_pd_before_go_neg,
4748 wpa_s->p2p_go_max_oper_chwidth,
4753 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4754 "try to join the group", join ? "" :
4757 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4758 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4759 wpa_s->p2p_fallback_to_go_neg = 1;
4763 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4764 wpa_s->pending_join_iface_addr);
4766 p2p_get_interface_addr(wpa_s->global->p2p,
4767 wpa_s->pending_join_dev_addr,
4769 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4770 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4771 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4772 "address for join from " MACSTR " to " MACSTR
4773 " based on newly discovered P2P peer entry",
4774 MAC2STR(wpa_s->pending_join_iface_addr),
4775 MAC2STR(iface_addr));
4776 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4779 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4780 wpa_s->pending_join_iface_addr);
4783 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4784 "from P2P peer table: %d MHz", freq);
4786 if (wpa_s->p2p_join_ssid_len) {
4787 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4788 MACSTR " and SSID %s",
4789 MAC2STR(wpa_s->pending_join_iface_addr),
4790 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4791 wpa_s->p2p_join_ssid_len));
4792 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4793 wpa_s->p2p_join_ssid,
4794 wpa_s->p2p_join_ssid_len);
4796 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4797 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4798 bss = wpa_bss_get_bssid_latest(wpa_s,
4799 wpa_s->pending_join_iface_addr);
4802 u8 dev_addr[ETH_ALEN];
4805 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4806 "from BSS table: %d MHz (SSID %s)", freq,
4807 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4808 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4810 os_memcmp(wpa_s->pending_join_dev_addr,
4811 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4812 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4814 wpa_printf(MSG_DEBUG,
4815 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4817 MAC2STR(wpa_s->pending_join_dev_addr));
4818 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4825 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4826 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4827 P2P_EVENT_GROUP_FORMATION_FAILURE
4828 "reason=FREQ_CONFLICT");
4829 wpas_notify_p2p_group_formation_failure(
4830 wpa_s, "FREQ_CONFLICT");
4834 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4835 "prior to joining an existing group (GO " MACSTR
4837 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4838 wpa_s->pending_pd_before_join = 1;
4840 switch (wpa_s->pending_join_wps_method) {
4841 case WPS_PIN_DISPLAY:
4842 method = WPS_CONFIG_KEYPAD;
4844 case WPS_PIN_KEYPAD:
4845 method = WPS_CONFIG_DISPLAY;
4848 method = WPS_CONFIG_PUSHBUTTON;
4851 method = WPS_CONFIG_P2PS;
4858 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4859 wpa_s->pending_join_dev_addr) ==
4862 * We have already performed provision discovery for
4863 * joining the group. Proceed directly to join
4864 * operation without duplicated provision discovery. */
4865 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4866 "with " MACSTR " already done - proceed to "
4868 MAC2STR(wpa_s->pending_join_dev_addr));
4869 wpa_s->pending_pd_before_join = 0;
4873 if (p2p_prov_disc_req(wpa_s->global->p2p,
4874 wpa_s->pending_join_dev_addr,
4876 freq, wpa_s->user_initiated_pd) < 0) {
4877 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4878 "Discovery Request before joining an "
4880 wpa_s->pending_pd_before_join = 0;
4886 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4887 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4888 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4889 wpas_p2p_check_join_scan_limit(wpa_s);
4893 /* Start join operation immediately */
4894 wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4895 wpa_s->p2p_join_ssid_len);
4899 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4900 const u8 *ssid, size_t ssid_len)
4903 struct wpa_driver_scan_params params;
4904 struct wpabuf *wps_ie, *ies;
4906 int freqs[2] = { 0, 0 };
4908 os_memset(¶ms, 0, sizeof(params));
4910 /* P2P Wildcard SSID */
4911 params.num_ssids = 1;
4912 if (ssid && ssid_len) {
4913 params.ssids[0].ssid = ssid;
4914 params.ssids[0].ssid_len = ssid_len;
4915 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4916 wpa_s->p2p_join_ssid_len = ssid_len;
4918 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4919 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4920 wpa_s->p2p_join_ssid_len = 0;
4923 wpa_s->wps->dev.p2p = 1;
4924 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4925 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4927 if (wps_ie == NULL) {
4928 wpas_p2p_scan_res_join(wpa_s, NULL);
4932 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4933 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4935 wpabuf_free(wps_ie);
4936 wpas_p2p_scan_res_join(wpa_s, NULL);
4939 wpabuf_put_buf(ies, wps_ie);
4940 wpabuf_free(wps_ie);
4942 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4944 params.p2p_probe = 1;
4945 params.extra_ies = wpabuf_head(ies);
4946 params.extra_ies_len = wpabuf_len(ies);
4951 * If freq is not provided, check the operating freq of the GO
4952 * and use a single channel scan on if possible.
4954 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4955 wpa_s->pending_join_iface_addr);
4961 params.freqs = freqs;
4965 * Run a scan to update BSS table and start Provision Discovery once
4966 * the new scan results become available.
4968 ret = wpa_drv_scan(wpa_s, ¶ms);
4970 os_get_reltime(&wpa_s->scan_trigger_time);
4971 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4972 wpa_s->own_scan_requested = 1;
4978 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4980 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4981 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4982 wpas_p2p_check_join_scan_limit(wpa_s);
4987 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4989 struct wpa_supplicant *wpa_s = eloop_ctx;
4990 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4994 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4995 const u8 *dev_addr, enum p2p_wps_method wps_method,
4996 int auto_join, int op_freq,
4997 const u8 *ssid, size_t ssid_len)
4999 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5000 MACSTR " dev " MACSTR " op_freq=%d)%s",
5001 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5002 auto_join ? " (auto_join)" : "");
5003 if (ssid && ssid_len) {
5004 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5005 wpa_ssid_txt(ssid, ssid_len));
5008 wpa_s->p2p_auto_pd = 0;
5009 wpa_s->p2p_auto_join = !!auto_join;
5010 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5011 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5012 wpa_s->pending_join_wps_method = wps_method;
5014 /* Make sure we are not running find during connection establishment */
5015 wpas_p2p_stop_find(wpa_s);
5017 wpa_s->p2p_join_scan_count = 0;
5018 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5023 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5024 const u8 *ssid, size_t ssid_len)
5026 struct wpa_supplicant *group;
5027 struct p2p_go_neg_results res;
5028 struct wpa_bss *bss;
5030 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5033 if (group != wpa_s) {
5034 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5035 sizeof(group->p2p_pin));
5036 group->p2p_wps_method = wpa_s->p2p_wps_method;
5039 * Need to mark the current interface for p2p_group_formation
5040 * when a separate group interface is not used. This is needed
5041 * to allow p2p_cancel stop a pending p2p_connect-join.
5042 * wpas_p2p_init_group_interface() addresses this for the case
5043 * where a separate group interface is used.
5045 wpa_s->global->p2p_group_formation = wpa_s;
5048 group->p2p_in_provisioning = 1;
5049 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5051 os_memset(&res, 0, sizeof(res));
5052 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5053 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5055 res.wps_method = wpa_s->pending_join_wps_method;
5056 if (freq && ssid && ssid_len) {
5058 res.ssid_len = ssid_len;
5059 os_memcpy(res.ssid, ssid, ssid_len);
5061 if (ssid && ssid_len) {
5062 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5065 bss = wpa_bss_get_bssid_latest(
5066 wpa_s, wpa_s->pending_join_iface_addr);
5069 res.freq = bss->freq;
5070 res.ssid_len = bss->ssid_len;
5071 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5072 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5074 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5075 } else if (ssid && ssid_len) {
5076 res.ssid_len = ssid_len;
5077 os_memcpy(res.ssid, ssid, ssid_len);
5078 wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5079 wpa_ssid_txt(ssid, ssid_len));
5083 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5084 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5086 wpa_drv_cancel_remain_on_channel(wpa_s);
5087 wpa_s->off_channel_freq = 0;
5088 wpa_s->roc_waiting_drv_freq = 0;
5090 wpas_start_wps_enrollee(group, &res);
5093 * Allow a longer timeout for join-a-running-group than normal 15
5094 * second group formation timeout since the GO may not have authorized
5095 * our connection yet.
5097 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5098 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5105 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5106 int *force_freq, int *pref_freq, int go,
5107 unsigned int *pref_freq_list,
5108 unsigned int *num_pref_freq)
5110 struct wpa_used_freq_data *freqs;
5111 int res, best_freq, num_unused;
5112 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5114 max_pref_freq = *num_pref_freq;
5117 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5118 sizeof(struct wpa_used_freq_data));
5122 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5123 wpa_s->num_multichan_concurrent);
5126 * It is possible that the total number of used frequencies is bigger
5127 * than the number of frequencies used for P2P, so get the system wide
5128 * number of unused frequencies.
5130 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5132 wpa_printf(MSG_DEBUG,
5133 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5134 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5139 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5141 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5143 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5144 ieee80211_is_dfs(freq)) {
5146 * If freq is a DFS channel and DFS is offloaded
5147 * to the driver, allow P2P GO to use it.
5149 wpa_printf(MSG_DEBUG,
5150 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5153 wpa_printf(MSG_DEBUG,
5154 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5161 for (i = 0; i < num; i++) {
5162 if (freqs[i].freq == freq)
5166 if (num_unused <= 0 && !freq_in_use) {
5167 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5172 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5173 "requested channel (%u MHz)", freq);
5178 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5180 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5181 enum wpa_driver_if_type iface_type;
5184 iface_type = WPA_IF_P2P_GO;
5186 iface_type = WPA_IF_P2P_CLIENT;
5188 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5191 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5194 if (!res && max_pref_freq > 0) {
5195 *num_pref_freq = max_pref_freq;
5197 while (wpas_p2p_disallowed_freq(wpa_s->global,
5198 pref_freq_list[i]) &&
5199 i < *num_pref_freq) {
5200 wpa_printf(MSG_DEBUG,
5201 "P2P: preferred_freq_list[%d]=%d is disallowed",
5202 i, pref_freq_list[i]);
5205 if (i != *num_pref_freq) {
5206 best_freq = pref_freq_list[i];
5207 wpa_printf(MSG_DEBUG,
5208 "P2P: Using preferred_freq_list[%d]=%d",
5211 wpa_printf(MSG_DEBUG,
5212 "P2P: All driver preferred frequencies are disallowed for P2P use");
5216 wpa_printf(MSG_DEBUG,
5217 "P2P: No preferred frequency list available");
5221 /* We have a candidate frequency to use */
5222 if (best_freq > 0) {
5223 if (*pref_freq == 0 && num_unused > 0) {
5224 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5226 *pref_freq = best_freq;
5228 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5230 *force_freq = best_freq;
5232 } else if (num_unused > 0) {
5233 wpa_printf(MSG_DEBUG,
5234 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5237 wpa_printf(MSG_DEBUG,
5238 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5252 * wpas_p2p_connect - Request P2P Group Formation to be started
5253 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5254 * @peer_addr: Address of the peer P2P Device
5255 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5256 * @persistent_group: Whether to create a persistent group
5257 * @auto_join: Whether to select join vs. GO Negotiation automatically
5258 * @join: Whether to join an existing group (as a client) instead of starting
5259 * Group Owner negotiation; @peer_addr is BSSID in that case
5260 * @auth: Whether to only authorize the connection instead of doing that and
5261 * initiating Group Owner negotiation
5262 * @go_intent: GO Intent or -1 to use default
5263 * @freq: Frequency for the group or 0 for auto-selection
5264 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5265 * @persistent_id: Persistent group credentials to use for forcing GO
5266 * parameters or -1 to generate new values (SSID/passphrase)
5267 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5268 * interoperability workaround when initiating group formation
5269 * @ht40: Start GO with 40 MHz channel width
5270 * @vht: Start GO with VHT support
5271 * @vht_chwidth: Channel width supported by GO operating with VHT support
5272 * (VHT_CHANWIDTH_*).
5273 * @group_ssid: Specific Group SSID for join or %NULL if not set
5274 * @group_ssid_len: Length of @group_ssid in octets
5275 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5276 * failure, -2 on failure due to channel not currently available,
5277 * -3 if forced channel is not supported
5279 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5280 const char *pin, enum p2p_wps_method wps_method,
5281 int persistent_group, int auto_join, int join, int auth,
5282 int go_intent, int freq, unsigned int vht_center_freq2,
5283 int persistent_id, int pd, int ht40, int vht,
5284 unsigned int vht_chwidth, const u8 *group_ssid,
5285 size_t group_ssid_len)
5287 int force_freq = 0, pref_freq = 0;
5289 enum wpa_driver_if_type iftype;
5291 struct wpa_ssid *ssid = NULL;
5292 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5294 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5297 if (persistent_id >= 0) {
5298 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5299 if (ssid == NULL || ssid->disabled != 2 ||
5300 ssid->mode != WPAS_MODE_P2P_GO)
5304 os_free(wpa_s->global->add_psk);
5305 wpa_s->global->add_psk = NULL;
5307 wpa_s->global->p2p_fail_on_wps_complete = 0;
5308 wpa_s->global->pending_p2ps_group = 0;
5309 wpa_s->global->pending_p2ps_group_freq = 0;
5310 wpa_s->p2ps_method_config_any = 0;
5313 go_intent = wpa_s->conf->p2p_go_intent;
5316 wpa_s->p2p_long_listen = 0;
5318 wpa_s->p2p_wps_method = wps_method;
5319 wpa_s->p2p_persistent_group = !!persistent_group;
5320 wpa_s->p2p_persistent_id = persistent_id;
5321 wpa_s->p2p_go_intent = go_intent;
5322 wpa_s->p2p_connect_freq = freq;
5323 wpa_s->p2p_fallback_to_go_neg = 0;
5324 wpa_s->p2p_pd_before_go_neg = !!pd;
5325 wpa_s->p2p_go_ht40 = !!ht40;
5326 wpa_s->p2p_go_vht = !!vht;
5327 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5328 wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5331 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5332 else if (wps_method == WPS_PIN_DISPLAY) {
5333 if (wps_generate_pin((unsigned int *) &ret) < 0)
5335 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5337 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5338 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5339 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5342 wpa_s->p2p_pin[0] = '\0';
5344 if (join || auto_join) {
5345 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5347 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5348 "connect a running group from " MACSTR,
5349 MAC2STR(peer_addr));
5350 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5353 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5354 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5356 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5357 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5361 os_get_reltime(&wpa_s->p2p_auto_started);
5362 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5364 wpa_s->p2p_auto_started.sec,
5365 wpa_s->p2p_auto_started.usec);
5367 wpa_s->user_initiated_pd = 1;
5368 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5370 group_ssid, group_ssid_len) < 0)
5375 size = P2P_MAX_PREF_CHANNELS;
5376 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5377 go_intent == 15, pref_freq_list, &size);
5380 wpas_p2p_set_own_freq_preference(wpa_s,
5381 force_freq ? force_freq : pref_freq);
5383 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5385 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5387 if (wpa_s->create_p2p_iface) {
5388 /* Prepare to add a new interface for the group */
5389 iftype = WPA_IF_P2P_GROUP;
5390 if (go_intent == 15)
5391 iftype = WPA_IF_P2P_GO;
5392 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5393 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5394 "interface for the group");
5398 if_addr = wpa_s->pending_interface_addr;
5400 if_addr = wpa_s->own_addr;
5401 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5405 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5407 force_freq, persistent_group, ssid,
5413 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5414 go_intent, if_addr, force_freq,
5415 persistent_group, ssid, pref_freq) < 0) {
5416 if (wpa_s->create_p2p_iface)
5417 wpas_p2p_remove_pending_group_interface(wpa_s);
5425 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5426 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5427 * @freq: Frequency of the channel in MHz
5428 * @duration: Duration of the stay on the channel in milliseconds
5430 * This callback is called when the driver indicates that it has started the
5431 * requested remain-on-channel duration.
5433 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5434 unsigned int freq, unsigned int duration)
5436 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5438 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)",
5439 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5440 wpa_s->roc_waiting_drv_freq, freq, duration);
5441 if (wpa_s->off_channel_freq &&
5442 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5443 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5444 wpa_s->pending_listen_duration);
5445 wpa_s->pending_listen_freq = 0;
5447 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5448 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5454 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5456 /* Limit maximum Listen state time based on driver limitation. */
5457 if (timeout > wpa_s->max_remain_on_chan)
5458 timeout = wpa_s->max_remain_on_chan;
5460 return p2p_listen(wpa_s->global->p2p, timeout);
5465 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5466 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5467 * @freq: Frequency of the channel in MHz
5469 * This callback is called when the driver indicates that a remain-on-channel
5470 * operation has been completed, i.e., the duration on the requested channel
5473 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5476 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5477 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5478 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5479 wpas_p2p_listen_work_done(wpa_s);
5480 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5482 if (wpa_s->p2p_long_listen > 0)
5483 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5484 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5485 return; /* P2P module started a new operation */
5486 if (offchannel_pending_action_tx(wpa_s))
5488 if (wpa_s->p2p_long_listen > 0) {
5489 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5490 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5493 * When listen duration is over, stop listen & update p2p_state
5496 p2p_stop_listen(wpa_s->global->p2p);
5502 * wpas_p2p_group_remove - Remove a P2P group
5503 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5504 * @ifname: Network interface name of the group interface or "*" to remove all
5506 * Returns: 0 on success, -1 on failure
5508 * This function is used to remove a P2P group. This can be used to disconnect
5509 * from a group in which the local end is a P2P Client or to end a P2P Group in
5510 * case the local end is the Group Owner. If a virtual network interface was
5511 * created for this group, that interface will be removed. Otherwise, only the
5512 * configured P2P group network will be removed from the interface.
5514 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5516 struct wpa_global *global = wpa_s->global;
5517 struct wpa_supplicant *calling_wpa_s = wpa_s;
5519 if (os_strcmp(ifname, "*") == 0) {
5520 struct wpa_supplicant *prev;
5521 wpa_s = global->ifaces;
5524 wpa_s = wpa_s->next;
5525 if (prev->p2p_group_interface !=
5526 NOT_P2P_GROUP_INTERFACE ||
5527 (prev->current_ssid &&
5528 prev->current_ssid->p2p_group))
5529 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5534 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5535 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5539 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5543 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5547 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5548 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5549 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5552 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5553 &size, pref_freq_list);
5554 if (!res && size > 0) {
5556 while (wpas_p2p_disallowed_freq(wpa_s->global,
5557 pref_freq_list[i]) &&
5559 wpa_printf(MSG_DEBUG,
5560 "P2P: preferred_freq_list[%d]=%d is disallowed",
5561 i, pref_freq_list[i]);
5565 freq = pref_freq_list[i];
5566 wpa_printf(MSG_DEBUG,
5567 "P2P: Using preferred_freq_list[%d]=%d",
5570 wpa_printf(MSG_DEBUG,
5571 "P2P: All driver preferred frequencies are disallowed for P2P use");
5574 wpa_printf(MSG_DEBUG,
5575 "P2P: No preferred frequency list available");
5580 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5582 if (wpa_s->best_24_freq > 0 &&
5583 p2p_supported_freq_go(wpa_s->global->p2p,
5584 wpa_s->best_24_freq)) {
5585 freq = wpa_s->best_24_freq;
5586 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5587 "channel: %d MHz", freq);
5589 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5591 freq = 2412 + (r % 3) * 25;
5592 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5593 "channel: %d MHz", freq);
5598 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5600 if (wpa_s->best_5_freq > 0 &&
5601 p2p_supported_freq_go(wpa_s->global->p2p,
5602 wpa_s->best_5_freq)) {
5603 freq = wpa_s->best_5_freq;
5604 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5605 "channel: %d MHz", freq);
5607 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5609 freq = 5180 + (r % 4) * 20;
5610 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5611 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5612 "5 GHz channel for P2P group");
5615 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5616 "channel: %d MHz", freq);
5620 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5621 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5622 ieee80211_is_dfs(freq)) {
5624 * If freq is a DFS channel and DFS is offloaded to the
5625 * driver, allow P2P GO to use it.
5627 wpa_printf(MSG_DEBUG, "P2P: "
5628 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5632 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5633 "(%u MHz) is not supported for P2P uses",
5642 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5643 const struct p2p_channels *channels,
5646 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5647 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5648 freq_included(wpa_s, channels, freq))
5654 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5655 struct p2p_go_neg_results *params,
5656 const struct p2p_channels *channels)
5660 /* first try some random selection of the social channels */
5661 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5664 for (i = 0; i < 3; i++) {
5665 params->freq = 2412 + ((r + i) % 3) * 25;
5666 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5670 /* try all other channels in operating class 81 */
5671 for (i = 0; i < 11; i++) {
5672 params->freq = 2412 + i * 5;
5674 /* skip social channels; covered in the previous loop */
5675 if (params->freq == 2412 ||
5676 params->freq == 2437 ||
5677 params->freq == 2462)
5680 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5684 /* try all channels in operating class 115 */
5685 for (i = 0; i < 4; i++) {
5686 params->freq = 5180 + i * 20;
5687 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5688 freq_included(wpa_s, channels, params->freq) &&
5689 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5693 /* try all channels in operating class 124 */
5694 for (i = 0; i < 4; i++) {
5695 params->freq = 5745 + i * 20;
5696 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5697 freq_included(wpa_s, channels, params->freq) &&
5698 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5702 /* try social channel class 180 channel 2 */
5703 params->freq = 58320 + 1 * 2160;
5704 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5705 freq_included(wpa_s, channels, params->freq) &&
5706 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5709 /* try all channels in reg. class 180 */
5710 for (i = 0; i < 4; i++) {
5711 params->freq = 58320 + i * 2160;
5712 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5713 freq_included(wpa_s, channels, params->freq) &&
5714 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5719 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5722 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5727 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5728 struct p2p_go_neg_results *params,
5729 int freq, int vht_center_freq2, int ht40,
5730 int vht, int max_oper_chwidth,
5731 const struct p2p_channels *channels)
5733 struct wpa_used_freq_data *freqs;
5735 unsigned int num, i;
5736 int ignore_no_freqs = 0;
5738 os_memset(params, 0, sizeof(*params));
5739 params->role_go = 1;
5740 params->ht40 = ht40;
5742 params->max_oper_chwidth = max_oper_chwidth;
5743 params->vht_center_freq2 = vht_center_freq2;
5745 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5746 sizeof(struct wpa_used_freq_data));
5750 num = get_shared_radio_freqs_data(wpa_s, freqs,
5751 wpa_s->num_multichan_concurrent);
5753 if (wpa_s->current_ssid &&
5754 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5755 wpa_s->wpa_state == WPA_COMPLETED) {
5756 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5760 * If the frequency selection is done for an active P2P GO that
5761 * is not sharing a frequency, allow to select a new frequency
5762 * even if there are no unused frequencies as we are about to
5763 * move the P2P GO so its frequency can be re-used.
5765 for (i = 0; i < num; i++) {
5766 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5767 freqs[i].flags == 0) {
5768 ignore_no_freqs = 1;
5774 /* try using the forced freq */
5776 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5777 wpa_printf(MSG_DEBUG,
5778 "P2P: Forced GO freq %d MHz not accepted",
5783 for (i = 0; i < num; i++) {
5784 if (freqs[i].freq == freq) {
5785 wpa_printf(MSG_DEBUG,
5786 "P2P: forced freq (%d MHz) is also shared",
5788 params->freq = freq;
5793 if (!ignore_no_freqs &&
5794 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5795 wpa_printf(MSG_DEBUG,
5796 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5801 wpa_printf(MSG_DEBUG,
5802 "P2P: force GO freq (%d MHz) on a free channel",
5804 params->freq = freq;
5808 /* consider using one of the shared frequencies */
5810 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5811 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5812 wpa_printf(MSG_DEBUG,
5813 "P2P: Use shared freq (%d MHz) for GO",
5815 params->freq = cand;
5819 /* try using one of the shared freqs */
5820 for (i = 0; i < num; i++) {
5821 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5823 wpa_printf(MSG_DEBUG,
5824 "P2P: Use shared freq (%d MHz) for GO",
5826 params->freq = freqs[i].freq;
5832 if (!ignore_no_freqs &&
5833 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5834 wpa_printf(MSG_DEBUG,
5835 "P2P: Cannot force GO on any of the channels we are already using");
5839 /* try using the setting from the configuration file */
5840 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5841 wpa_s->conf->p2p_oper_channel >= 1 &&
5842 wpa_s->conf->p2p_oper_channel <= 11 &&
5843 wpas_p2p_supported_freq_go(
5845 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5846 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5847 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5848 "frequency %d MHz", params->freq);
5852 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5853 wpa_s->conf->p2p_oper_reg_class == 116 ||
5854 wpa_s->conf->p2p_oper_reg_class == 117 ||
5855 wpa_s->conf->p2p_oper_reg_class == 124 ||
5856 wpa_s->conf->p2p_oper_reg_class == 125 ||
5857 wpa_s->conf->p2p_oper_reg_class == 126 ||
5858 wpa_s->conf->p2p_oper_reg_class == 127) &&
5859 wpas_p2p_supported_freq_go(wpa_s, channels,
5861 5 * wpa_s->conf->p2p_oper_channel)) {
5862 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5863 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5864 "frequency %d MHz", params->freq);
5868 /* Try using best channels */
5869 if (wpa_s->conf->p2p_oper_channel == 0 &&
5870 wpa_s->best_overall_freq > 0 &&
5871 wpas_p2p_supported_freq_go(wpa_s, channels,
5872 wpa_s->best_overall_freq)) {
5873 params->freq = wpa_s->best_overall_freq;
5874 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5875 "channel %d MHz", params->freq);
5879 if (wpa_s->conf->p2p_oper_channel == 0 &&
5880 wpa_s->best_24_freq > 0 &&
5881 wpas_p2p_supported_freq_go(wpa_s, channels,
5882 wpa_s->best_24_freq)) {
5883 params->freq = wpa_s->best_24_freq;
5884 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5885 "channel %d MHz", params->freq);
5889 if (wpa_s->conf->p2p_oper_channel == 0 &&
5890 wpa_s->best_5_freq > 0 &&
5891 wpas_p2p_supported_freq_go(wpa_s, channels,
5892 wpa_s->best_5_freq)) {
5893 params->freq = wpa_s->best_5_freq;
5894 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5895 "channel %d MHz", params->freq);
5899 /* try using preferred channels */
5900 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5901 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5902 params->freq = cand;
5903 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5904 "channels", params->freq);
5908 /* Try using one of the group common freqs */
5909 if (wpa_s->p2p_group_common_freqs) {
5910 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5911 cand = wpa_s->p2p_group_common_freqs[i];
5912 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5913 params->freq = cand;
5914 wpa_printf(MSG_DEBUG,
5915 "P2P: Use freq %d MHz common with the peer",
5922 /* no preference, select some channel */
5923 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5925 if (params->freq == 0) {
5926 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5939 static struct wpa_supplicant *
5940 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5943 struct wpa_supplicant *group_wpa_s;
5945 if (!wpas_p2p_create_iface(wpa_s)) {
5946 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5948 wpa_s->p2p_first_connection_timeout = 0;
5952 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5953 WPA_IF_P2P_CLIENT) < 0) {
5954 wpa_msg_global(wpa_s, MSG_ERROR,
5955 "P2P: Failed to add group interface");
5958 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5959 if (group_wpa_s == NULL) {
5960 wpa_msg_global(wpa_s, MSG_ERROR,
5961 "P2P: Failed to initialize group interface");
5962 wpas_p2p_remove_pending_group_interface(wpa_s);
5966 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5967 group_wpa_s->ifname);
5968 group_wpa_s->p2p_first_connection_timeout = 0;
5974 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5975 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5976 * @persistent_group: Whether to create a persistent group
5977 * @freq: Frequency for the group or 0 to indicate no hardcoding
5978 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
5979 * @ht40: Start GO with 40 MHz channel width
5980 * @vht: Start GO with VHT support
5981 * @vht_chwidth: channel bandwidth for GO operating with VHT support
5982 * Returns: 0 on success, -1 on failure
5984 * This function creates a new P2P group with the local end as the Group Owner,
5985 * i.e., without using Group Owner Negotiation.
5987 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5988 int freq, int vht_center_freq2, int ht40, int vht,
5989 int max_oper_chwidth)
5991 struct p2p_go_neg_results params;
5993 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5996 os_free(wpa_s->global->add_psk);
5997 wpa_s->global->add_psk = NULL;
5999 /* Make sure we are not running find during connection establishment */
6000 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6001 wpas_p2p_stop_find_oper(wpa_s);
6003 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6007 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6008 ht40, vht, max_oper_chwidth, NULL))
6011 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
6012 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
6013 ieee80211_is_dfs(params.freq)) {
6015 * If freq is a DFS channel and DFS is offloaded to the
6016 * driver, allow P2P GO to use it.
6018 wpa_printf(MSG_DEBUG,
6019 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6020 __func__, params.freq);
6022 wpa_printf(MSG_DEBUG,
6023 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6028 p2p_go_params(wpa_s->global->p2p, ¶ms);
6029 params.persistent_group = persistent_group;
6031 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6034 wpas_start_wps_go(wpa_s, ¶ms, 0);
6040 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6041 struct wpa_ssid *params, int addr_allocated,
6042 int freq, int force_scan)
6044 struct wpa_ssid *ssid;
6046 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6050 os_get_reltime(&wpa_s->scan_min_time);
6051 wpa_s->p2p_last_4way_hs_fail = NULL;
6053 wpa_supplicant_ap_deinit(wpa_s);
6055 ssid = wpa_config_add_network(wpa_s->conf);
6058 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6059 wpa_config_set_network_defaults(ssid);
6060 ssid->temporary = 1;
6061 ssid->proto = WPA_PROTO_RSN;
6062 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
6063 ssid->group_cipher = WPA_CIPHER_CCMP;
6064 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6065 ssid->ssid = os_malloc(params->ssid_len);
6066 if (ssid->ssid == NULL) {
6067 wpa_config_remove_network(wpa_s->conf, ssid->id);
6070 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6071 ssid->ssid_len = params->ssid_len;
6072 ssid->p2p_group = 1;
6073 ssid->export_keys = 1;
6074 if (params->psk_set) {
6075 os_memcpy(ssid->psk, params->psk, 32);
6078 if (params->passphrase)
6079 ssid->passphrase = os_strdup(params->passphrase);
6081 wpa_s->show_group_started = 1;
6082 wpa_s->p2p_in_invitation = 1;
6083 wpa_s->p2p_invite_go_freq = freq;
6084 wpa_s->p2p_go_group_formation_completed = 0;
6085 wpa_s->global->p2p_group_formation = wpa_s;
6087 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6089 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6090 wpas_p2p_group_formation_timeout,
6091 wpa_s->p2pdev, NULL);
6092 wpa_supplicant_select_network(wpa_s, ssid);
6098 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6099 struct wpa_ssid *ssid, int addr_allocated,
6100 int force_freq, int neg_freq,
6101 int vht_center_freq2, int ht40,
6102 int vht, int max_oper_chwidth,
6103 const struct p2p_channels *channels,
6104 int connection_timeout, int force_scan)
6106 struct p2p_go_neg_results params;
6109 if (ssid->disabled != 2 || ssid->ssid == NULL)
6112 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6113 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6114 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6117 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6118 wpa_s->p2pdev, NULL)) {
6120 * This can happen if Invitation Response frame was lost
6121 * and the peer (GO of a persistent group) tries to
6122 * invite us again. Reschedule the timeout to avoid
6123 * terminating the wait for the connection too early
6124 * since we now know that the peer is still trying to
6125 * invite us instead of having already started the GO.
6127 wpa_printf(MSG_DEBUG,
6128 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6129 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6130 wpas_p2p_group_formation_timeout,
6131 wpa_s->p2pdev, NULL);
6136 os_free(wpa_s->global->add_psk);
6137 wpa_s->global->add_psk = NULL;
6139 /* Make sure we are not running find during connection establishment */
6140 wpas_p2p_stop_find_oper(wpa_s);
6142 wpa_s->p2p_fallback_to_go_neg = 0;
6144 if (ssid->mode == WPAS_MODE_P2P_GO) {
6145 if (force_freq > 0) {
6146 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6150 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6152 (freq > 0 && !freq_included(wpa_s, channels, freq)))
6155 } else if (ssid->mode == WPAS_MODE_INFRA) {
6157 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6158 struct os_reltime now;
6159 struct wpa_bss *bss =
6160 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6162 os_get_reltime(&now);
6164 !os_reltime_expired(&now, &bss->last_update, 5) &&
6165 freq_included(wpa_s, channels, bss->freq))
6171 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6177 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6178 ht40, vht, max_oper_chwidth, channels))
6182 params.psk_set = ssid->psk_set;
6184 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6185 if (ssid->passphrase) {
6186 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6187 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6188 "persistent group");
6191 os_strlcpy(params.passphrase, ssid->passphrase,
6192 sizeof(params.passphrase));
6194 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6195 params.ssid_len = ssid->ssid_len;
6196 params.persistent_group = 1;
6198 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6202 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6204 wpa_s->p2p_first_connection_timeout = connection_timeout;
6205 wpas_start_wps_go(wpa_s, ¶ms, 0);
6211 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6212 struct wpabuf *proberesp_ies)
6214 struct wpa_supplicant *wpa_s = ctx;
6215 if (wpa_s->ap_iface) {
6216 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6217 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6218 wpabuf_free(beacon_ies);
6219 wpabuf_free(proberesp_ies);
6223 wpabuf_free(hapd->p2p_beacon_ie);
6224 hapd->p2p_beacon_ie = beacon_ies;
6226 wpabuf_free(hapd->p2p_probe_resp_ie);
6227 hapd->p2p_probe_resp_ie = proberesp_ies;
6229 wpabuf_free(beacon_ies);
6230 wpabuf_free(proberesp_ies);
6232 wpa_supplicant_ap_update_beacon(wpa_s);
6236 static void wpas_p2p_idle_update(void *ctx, int idle)
6238 struct wpa_supplicant *wpa_s = ctx;
6239 if (!wpa_s->ap_iface)
6241 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6243 if (wpa_s->global->p2p_fail_on_wps_complete &&
6244 wpa_s->p2p_in_provisioning) {
6245 wpas_p2p_grpform_fail_after_wps(wpa_s);
6248 wpas_p2p_set_group_idle_timeout(wpa_s);
6250 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6254 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6255 struct wpa_ssid *ssid)
6257 struct p2p_group *group;
6258 struct p2p_group_config *cfg;
6260 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6263 cfg = os_zalloc(sizeof(*cfg));
6267 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6268 cfg->persistent_group = 2;
6269 else if (ssid->p2p_persistent_group)
6270 cfg->persistent_group = 1;
6271 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6272 if (wpa_s->max_stations &&
6273 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6274 cfg->max_clients = wpa_s->max_stations;
6276 cfg->max_clients = wpa_s->conf->max_num_sta;
6277 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6278 cfg->ssid_len = ssid->ssid_len;
6279 cfg->freq = ssid->frequency;
6280 cfg->cb_ctx = wpa_s;
6281 cfg->ie_update = wpas_p2p_ie_update;
6282 cfg->idle_update = wpas_p2p_idle_update;
6284 group = p2p_group_init(wpa_s->global->p2p, cfg);
6287 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6288 p2p_group_notif_formation_done(group);
6289 wpa_s->p2p_group = group;
6294 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6297 struct wpa_ssid *ssid = wpa_s->current_ssid;
6299 if (!wpa_s->p2p_in_provisioning) {
6300 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6301 "provisioning not in progress");
6305 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6306 u8 go_dev_addr[ETH_ALEN];
6307 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6308 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6310 /* Clear any stored provisioning info */
6311 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6314 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6316 wpa_s->p2p_go_group_formation_completed = 1;
6317 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6319 * Use a separate timeout for initial data connection to
6320 * complete to allow the group to be removed automatically if
6321 * something goes wrong in this step before the P2P group idle
6322 * timeout mechanism is taken into use.
6324 wpa_dbg(wpa_s, MSG_DEBUG,
6325 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6326 P2P_MAX_INITIAL_CONN_WAIT);
6327 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6328 wpas_p2p_group_formation_timeout,
6329 wpa_s->p2pdev, NULL);
6330 /* Complete group formation on successful data connection. */
6331 wpa_s->p2p_go_group_formation_completed = 0;
6334 * Use a separate timeout for initial data connection to
6335 * complete to allow the group to be removed automatically if
6336 * the client does not complete data connection successfully.
6338 wpa_dbg(wpa_s, MSG_DEBUG,
6339 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6340 P2P_MAX_INITIAL_CONN_WAIT_GO);
6341 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6342 wpas_p2p_group_formation_timeout,
6343 wpa_s->p2pdev, NULL);
6345 * Complete group formation on first successful data connection
6347 wpa_s->p2p_go_group_formation_completed = 0;
6349 if (wpa_s->global->p2p)
6350 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6351 wpas_group_formation_completed(wpa_s, 1, 0);
6355 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6356 struct wps_event_fail *fail)
6358 if (!wpa_s->p2p_in_provisioning) {
6359 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6360 "provisioning not in progress");
6364 if (wpa_s->go_params) {
6365 p2p_clear_provisioning_info(
6367 wpa_s->go_params->peer_device_addr);
6370 wpas_notify_p2p_wps_failed(wpa_s, fail);
6372 if (wpa_s == wpa_s->global->p2p_group_formation) {
6374 * Allow some time for the failed WPS negotiation exchange to
6375 * complete, but remove the group since group formation cannot
6376 * succeed after provisioning failure.
6378 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6379 wpa_s->global->p2p_fail_on_wps_complete = 1;
6380 eloop_deplete_timeout(0, 50000,
6381 wpas_p2p_group_formation_timeout,
6382 wpa_s->p2pdev, NULL);
6387 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6389 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6390 !wpa_s->p2p_in_provisioning)
6393 wpas_p2p_grpform_fail_after_wps(wpa_s);
6399 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6400 const char *config_method,
6401 enum wpas_p2p_prov_disc_use use,
6402 struct p2ps_provision *p2ps_prov)
6406 wpa_s->global->pending_p2ps_group = 0;
6407 wpa_s->global->pending_p2ps_group_freq = 0;
6408 wpa_s->p2p_fallback_to_go_neg = 0;
6409 wpa_s->pending_pd_use = NORMAL_PD;
6410 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6411 p2ps_prov->conncap = p2ps_group_capability(
6412 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6413 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6415 wpa_printf(MSG_DEBUG,
6416 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6417 __func__, p2ps_prov->conncap,
6418 p2ps_prov->adv_id, p2ps_prov->conncap,
6419 p2ps_prov->status, p2ps_prov->info);
6422 } else if (os_strncmp(config_method, "display", 7) == 0)
6423 config_methods = WPS_CONFIG_DISPLAY;
6424 else if (os_strncmp(config_method, "keypad", 6) == 0)
6425 config_methods = WPS_CONFIG_KEYPAD;
6426 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6427 os_strncmp(config_method, "pushbutton", 10) == 0)
6428 config_methods = WPS_CONFIG_PUSHBUTTON;
6430 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6435 if (use == WPAS_P2P_PD_AUTO) {
6436 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6437 wpa_s->pending_pd_config_methods = config_methods;
6438 wpa_s->p2p_auto_pd = 1;
6439 wpa_s->p2p_auto_join = 0;
6440 wpa_s->pending_pd_before_join = 0;
6441 wpa_s->auto_pd_scan_retry = 0;
6442 wpas_p2p_stop_find(wpa_s);
6443 wpa_s->p2p_join_scan_count = 0;
6444 os_get_reltime(&wpa_s->p2p_auto_started);
6445 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6446 wpa_s->p2p_auto_started.sec,
6447 wpa_s->p2p_auto_started.usec);
6448 wpas_p2p_join_scan(wpa_s, NULL);
6452 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6457 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6458 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6463 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6466 return p2p_scan_result_text(ies, ies_len, buf, end);
6470 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6472 if (!offchannel_pending_action_tx(wpa_s))
6475 if (wpa_s->p2p_send_action_work) {
6476 wpas_p2p_free_send_action_work(wpa_s);
6477 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
6479 offchannel_send_action_done(wpa_s);
6482 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6483 "operation request");
6484 offchannel_clear_pending_action_tx(wpa_s);
6488 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6489 enum p2p_discovery_type type,
6490 unsigned int num_req_dev_types, const u8 *req_dev_types,
6491 const u8 *dev_id, unsigned int search_delay,
6492 u8 seek_cnt, const char **seek_string, int freq)
6494 wpas_p2p_clear_pending_action_tx(wpa_s);
6495 wpa_s->p2p_long_listen = 0;
6497 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6498 wpa_s->p2p_in_provisioning)
6501 wpa_supplicant_cancel_sched_scan(wpa_s);
6503 return p2p_find(wpa_s->global->p2p, timeout, type,
6504 num_req_dev_types, req_dev_types, dev_id,
6505 search_delay, seek_cnt, seek_string, freq);
6509 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6510 struct wpa_scan_results *scan_res)
6512 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6514 if (wpa_s->p2p_scan_work) {
6515 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6516 wpa_s->p2p_scan_work = NULL;
6517 radio_work_done(work);
6520 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6524 * Indicate that results have been processed so that the P2P module can
6525 * continue pending tasks.
6527 p2p_scan_res_handled(wpa_s->global->p2p);
6531 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6533 wpas_p2p_clear_pending_action_tx(wpa_s);
6534 wpa_s->p2p_long_listen = 0;
6535 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6536 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6538 if (wpa_s->global->p2p)
6539 p2p_stop_find(wpa_s->global->p2p);
6541 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6542 wpa_printf(MSG_DEBUG,
6543 "P2P: Do not consider the scan results after stop_find");
6544 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6549 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6551 wpas_p2p_stop_find_oper(wpa_s);
6552 if (!wpa_s->global->pending_group_iface_for_p2ps)
6553 wpas_p2p_remove_pending_group_interface(wpa_s);
6557 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6559 struct wpa_supplicant *wpa_s = eloop_ctx;
6560 wpa_s->p2p_long_listen = 0;
6564 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6568 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6571 wpa_supplicant_cancel_sched_scan(wpa_s);
6572 wpas_p2p_clear_pending_action_tx(wpa_s);
6576 * This is a request for unlimited Listen state. However, at
6577 * least for now, this is mapped to a Listen state for one
6582 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6583 wpa_s->p2p_long_listen = 0;
6586 * Stop previous find/listen operation to avoid trying to request a new
6587 * remain-on-channel operation while the driver is still running the
6590 if (wpa_s->global->p2p)
6591 p2p_stop_find(wpa_s->global->p2p);
6593 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6594 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6595 wpa_s->p2p_long_listen = timeout * 1000;
6596 eloop_register_timeout(timeout, 0,
6597 wpas_p2p_long_listen_timeout,
6605 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6606 u8 *buf, size_t len, int p2p_group)
6608 struct wpabuf *p2p_ie;
6611 if (wpa_s->global->p2p_disabled)
6614 * Advertize mandatory cross connection capability even on
6615 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6617 if (wpa_s->conf->p2p_disabled && p2p_group)
6619 if (wpa_s->global->p2p == NULL)
6624 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6625 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6627 wpabuf_free(p2p_ie);
6633 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6634 const u8 *dst, const u8 *bssid,
6635 const u8 *ie, size_t ie_len,
6636 unsigned int rx_freq, int ssi_signal)
6638 if (wpa_s->global->p2p_disabled)
6640 if (wpa_s->global->p2p == NULL)
6643 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6644 ie, ie_len, rx_freq)) {
6645 case P2P_PREQ_NOT_P2P:
6646 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6649 case P2P_PREQ_MALFORMED:
6650 case P2P_PREQ_NOT_LISTEN:
6651 case P2P_PREQ_NOT_PROCESSED:
6652 default: /* make gcc happy */
6654 case P2P_PREQ_PROCESSED:
6660 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6661 const u8 *sa, const u8 *bssid,
6662 u8 category, const u8 *data, size_t len, int freq)
6664 if (wpa_s->global->p2p_disabled)
6666 if (wpa_s->global->p2p == NULL)
6669 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6674 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6676 if (wpa_s->global->p2p_disabled)
6678 if (wpa_s->global->p2p == NULL)
6681 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6685 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6687 p2p_group_deinit(wpa_s->p2p_group);
6688 wpa_s->p2p_group = NULL;
6690 wpa_s->ap_configured_cb = NULL;
6691 wpa_s->ap_configured_cb_ctx = NULL;
6692 wpa_s->ap_configured_cb_data = NULL;
6693 wpa_s->connect_without_scan = NULL;
6697 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6699 wpa_s->p2p_long_listen = 0;
6701 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6704 return p2p_reject(wpa_s->global->p2p, addr);
6708 /* Invite to reinvoke a persistent group */
6709 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6710 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6711 int vht_center_freq2, int ht40, int vht, int max_chwidth,
6714 enum p2p_invite_role role;
6718 int no_pref_freq_given = pref_freq == 0;
6719 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6721 wpa_s->global->p2p_invite_group = NULL;
6723 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6725 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6727 wpa_s->p2p_persistent_go_freq = freq;
6728 wpa_s->p2p_go_ht40 = !!ht40;
6729 wpa_s->p2p_go_vht = !!vht;
6730 wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6731 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6732 if (ssid->mode == WPAS_MODE_P2P_GO) {
6733 role = P2P_INVITE_ROLE_GO;
6734 if (peer_addr == NULL) {
6735 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6736 "address in invitation command");
6739 if (wpas_p2p_create_iface(wpa_s)) {
6740 if (wpas_p2p_add_group_interface(wpa_s,
6741 WPA_IF_P2P_GO) < 0) {
6742 wpa_printf(MSG_ERROR, "P2P: Failed to "
6743 "allocate a new interface for the "
6747 bssid = wpa_s->pending_interface_addr;
6749 bssid = wpa_s->own_addr;
6751 role = P2P_INVITE_ROLE_CLIENT;
6752 peer_addr = ssid->bssid;
6754 wpa_s->pending_invite_ssid_id = ssid->id;
6756 size = P2P_MAX_PREF_CHANNELS;
6757 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6758 role == P2P_INVITE_ROLE_GO,
6759 pref_freq_list, &size);
6763 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6766 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6768 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6769 no_pref_freq_given && pref_freq > 0 &&
6770 wpa_s->num_multichan_concurrent > 1 &&
6771 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6772 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6778 * Stop any find/listen operations before invitation and possibly
6779 * connection establishment.
6781 wpas_p2p_stop_find_oper(wpa_s);
6783 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6784 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6789 /* Invite to join an active group */
6790 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6791 const u8 *peer_addr, const u8 *go_dev_addr)
6793 struct wpa_global *global = wpa_s->global;
6794 enum p2p_invite_role role;
6796 struct wpa_ssid *ssid;
6798 int freq = 0, force_freq = 0, pref_freq = 0;
6800 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6802 wpa_s->p2p_persistent_go_freq = 0;
6803 wpa_s->p2p_go_ht40 = 0;
6804 wpa_s->p2p_go_vht = 0;
6805 wpa_s->p2p_go_vht_center_freq2 = 0;
6806 wpa_s->p2p_go_max_oper_chwidth = 0;
6808 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6809 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6812 if (wpa_s == NULL) {
6813 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6817 ssid = wpa_s->current_ssid;
6819 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6824 wpa_s->global->p2p_invite_group = wpa_s;
6825 persistent = ssid->p2p_persistent_group &&
6826 wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
6827 ssid->ssid, ssid->ssid_len);
6829 if (ssid->mode == WPAS_MODE_P2P_GO) {
6830 role = P2P_INVITE_ROLE_ACTIVE_GO;
6831 bssid = wpa_s->own_addr;
6832 if (go_dev_addr == NULL)
6833 go_dev_addr = wpa_s->global->p2p_dev_addr;
6834 freq = ssid->frequency;
6836 role = P2P_INVITE_ROLE_CLIENT;
6837 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6838 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6839 "invite to current group");
6842 bssid = wpa_s->bssid;
6843 if (go_dev_addr == NULL &&
6844 !is_zero_ether_addr(wpa_s->go_dev_addr))
6845 go_dev_addr = wpa_s->go_dev_addr;
6846 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6847 (int) wpa_s->assoc_freq;
6849 wpa_s->p2pdev->pending_invite_ssid_id = -1;
6851 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6854 size = P2P_MAX_PREF_CHANNELS;
6855 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6856 role == P2P_INVITE_ROLE_ACTIVE_GO,
6857 pref_freq_list, &size);
6860 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6862 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6863 ssid->ssid, ssid->ssid_len, force_freq,
6864 go_dev_addr, persistent, pref_freq, -1);
6868 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6870 struct wpa_ssid *ssid = wpa_s->current_ssid;
6871 u8 go_dev_addr[ETH_ALEN];
6872 int network_id = -1;
6878 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6879 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6880 wpa_s->p2pdev, NULL);
6883 if (!wpa_s->show_group_started || !ssid)
6886 wpa_s->show_group_started = 0;
6887 if (!wpa_s->p2p_go_group_formation_completed &&
6888 wpa_s->global->p2p_group_formation == wpa_s) {
6889 wpa_dbg(wpa_s, MSG_DEBUG,
6890 "P2P: Marking group formation completed on client on data connection");
6891 wpa_s->p2p_go_group_formation_completed = 1;
6892 wpa_s->global->p2p_group_formation = NULL;
6893 wpa_s->p2p_in_provisioning = 0;
6894 wpa_s->p2p_in_invitation = 0;
6897 os_memset(go_dev_addr, 0, ETH_ALEN);
6898 if (ssid->bssid_set)
6899 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6900 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6902 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6904 if (wpa_s->global->p2p_group_formation == wpa_s)
6905 wpa_s->global->p2p_group_formation = NULL;
6907 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6908 (int) wpa_s->assoc_freq;
6911 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6914 res = os_snprintf(ip_addr, sizeof(ip_addr),
6915 " ip_addr=%u.%u.%u.%u "
6916 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6917 ip[0], ip[1], ip[2], ip[3],
6918 ip[4], ip[5], ip[6], ip[7],
6919 ip[8], ip[9], ip[10], ip[11]);
6920 if (os_snprintf_error(sizeof(ip_addr), res))
6924 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6925 ssid->passphrase == NULL && ssid->psk_set ?
6927 ssid->passphrase, go_dev_addr, persistent,
6931 network_id = wpas_p2p_store_persistent_group(wpa_s->p2pdev,
6934 network_id = ssid->id;
6935 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6939 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6940 u32 interval1, u32 duration2, u32 interval2)
6944 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6947 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6948 wpa_s->current_ssid == NULL ||
6949 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6952 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6953 wpa_s->own_addr, wpa_s->assoc_freq,
6954 duration1, interval1, duration2, interval2);
6956 wpa_s->waiting_presence_resp = 1;
6962 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6963 unsigned int interval)
6965 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6968 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6972 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6974 if (wpa_s->current_ssid == NULL) {
6976 * current_ssid can be cleared when P2P client interface gets
6977 * disconnected, so assume this interface was used as P2P
6982 return wpa_s->current_ssid->p2p_group &&
6983 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6987 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6989 struct wpa_supplicant *wpa_s = eloop_ctx;
6991 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6992 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6997 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6999 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7003 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7007 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7008 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7010 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7013 timeout = wpa_s->conf->p2p_group_idle;
7014 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7015 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7016 timeout = P2P_MAX_CLIENT_IDLE;
7022 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7023 timeout = 0; /* special client mode no-timeout */
7028 if (wpa_s->p2p_in_provisioning) {
7030 * Use the normal group formation timeout during the
7031 * provisioning phase to avoid terminating this process too
7032 * early due to group idle timeout.
7034 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7035 "during provisioning");
7039 if (wpa_s->show_group_started) {
7041 * Use the normal group formation timeout between the end of
7042 * the provisioning phase and completion of 4-way handshake to
7043 * avoid terminating this process too early due to group idle
7046 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7047 "while waiting for initial 4-way handshake to "
7052 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7054 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7059 /* Returns 1 if the interface was removed */
7060 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7061 u16 reason_code, const u8 *ie, size_t ie_len,
7062 int locally_generated)
7064 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7067 if (!locally_generated)
7068 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7071 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7072 wpa_s->current_ssid &&
7073 wpa_s->current_ssid->p2p_group &&
7074 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7075 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7076 "session is ending");
7077 if (wpas_p2p_group_delete(wpa_s,
7078 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7087 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7088 u16 reason_code, const u8 *ie, size_t ie_len,
7089 int locally_generated)
7091 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7094 if (!locally_generated)
7095 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7100 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7102 struct p2p_data *p2p = wpa_s->global->p2p;
7107 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7110 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7111 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7113 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7114 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7117 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7118 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7120 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7121 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7123 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7124 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7125 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7126 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7127 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7130 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7131 p2p_set_sec_dev_types(p2p,
7132 (void *) wpa_s->conf->sec_device_type,
7133 wpa_s->conf->num_sec_device_types);
7135 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7137 p2p_remove_wps_vendor_extensions(p2p);
7138 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7139 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7141 p2p_add_wps_vendor_extension(
7142 p2p, wpa_s->conf->wps_vendor_ext[i]);
7146 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7147 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7149 country[0] = wpa_s->conf->country[0];
7150 country[1] = wpa_s->conf->country[1];
7152 p2p_set_country(p2p, country);
7155 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7156 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7157 wpa_s->conf->p2p_ssid_postfix ?
7158 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7162 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7163 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7165 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7166 u8 reg_class, channel;
7171 if (wpa_s->conf->p2p_listen_reg_class &&
7172 wpa_s->conf->p2p_listen_channel) {
7173 reg_class = wpa_s->conf->p2p_listen_reg_class;
7174 channel = wpa_s->conf->p2p_listen_channel;
7179 * Pick one of the social channels randomly as the
7182 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7185 channel = 1 + (r % 3) * 5;
7188 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7191 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7194 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7195 u8 op_reg_class, op_channel, cfg_op_channel;
7198 if (wpa_s->conf->p2p_oper_reg_class &&
7199 wpa_s->conf->p2p_oper_channel) {
7200 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7201 op_channel = wpa_s->conf->p2p_oper_channel;
7206 * Use random operation channel from (1, 6, 11)
7207 *if no other preference is indicated.
7209 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7212 op_channel = 1 + (r % 3) * 5;
7215 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7218 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7222 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7223 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7224 wpa_s->conf->p2p_pref_chan) < 0) {
7225 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7229 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7230 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7235 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7236 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7240 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7243 if (!wpa_s->ap_iface)
7245 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7250 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7252 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7255 wpa_s->global->cross_connection = enabled;
7256 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7259 struct wpa_supplicant *iface;
7261 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7263 if (iface->cross_connect_enabled == 0)
7266 iface->cross_connect_enabled = 0;
7267 iface->cross_connect_in_use = 0;
7268 wpa_msg_global(iface->p2pdev, MSG_INFO,
7269 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7271 iface->cross_connect_uplink);
7279 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7281 struct wpa_supplicant *iface;
7283 if (!uplink->global->cross_connection)
7286 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7287 if (!iface->cross_connect_enabled)
7289 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7292 if (iface->ap_iface == NULL)
7294 if (iface->cross_connect_in_use)
7297 iface->cross_connect_in_use = 1;
7298 wpa_msg_global(iface->p2pdev, MSG_INFO,
7299 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7300 iface->ifname, iface->cross_connect_uplink);
7305 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7307 struct wpa_supplicant *iface;
7309 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7310 if (!iface->cross_connect_enabled)
7312 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7315 if (!iface->cross_connect_in_use)
7318 wpa_msg_global(iface->p2pdev, MSG_INFO,
7319 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7320 iface->ifname, iface->cross_connect_uplink);
7321 iface->cross_connect_in_use = 0;
7326 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7328 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7329 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7330 wpa_s->cross_connect_disallowed)
7331 wpas_p2p_disable_cross_connect(wpa_s);
7333 wpas_p2p_enable_cross_connect(wpa_s);
7334 if (!wpa_s->ap_iface &&
7335 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7336 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7340 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7342 wpas_p2p_disable_cross_connect(wpa_s);
7343 if (!wpa_s->ap_iface &&
7344 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7346 wpas_p2p_set_group_idle_timeout(wpa_s);
7350 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7352 struct wpa_supplicant *iface;
7354 if (!wpa_s->global->cross_connection)
7357 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7360 if (iface->drv_flags &
7361 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7363 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7364 iface != wpa_s->parent)
7367 wpa_s->cross_connect_enabled = 1;
7368 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7369 sizeof(wpa_s->cross_connect_uplink));
7370 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7371 "%s to %s whenever uplink is available",
7372 wpa_s->ifname, wpa_s->cross_connect_uplink);
7374 if (iface->ap_iface || iface->current_ssid == NULL ||
7375 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7376 iface->cross_connect_disallowed ||
7377 iface->wpa_state != WPA_COMPLETED)
7380 wpa_s->cross_connect_in_use = 1;
7381 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
7382 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7383 wpa_s->ifname, wpa_s->cross_connect_uplink);
7389 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7391 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7392 !wpa_s->p2p_in_provisioning)
7393 return 0; /* not P2P client operation */
7395 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7397 if (wpa_s != wpa_s->p2pdev)
7398 wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
7399 wpas_p2p_group_formation_failed(wpa_s, 0);
7404 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7406 struct wpa_supplicant *wpa_s = eloop_ctx;
7407 wpas_p2p_notif_pbc_overlap(wpa_s);
7411 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7412 enum wpas_p2p_channel_update_trig trig)
7414 struct p2p_channels chan, cli_chan;
7415 struct wpa_used_freq_data *freqs = NULL;
7416 unsigned int num = wpa_s->num_multichan_concurrent;
7418 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7421 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7425 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7427 os_memset(&chan, 0, sizeof(chan));
7428 os_memset(&cli_chan, 0, sizeof(cli_chan));
7429 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7430 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7435 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7437 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7440 * The used frequencies map changed, so it is possible that a GO is
7441 * using a channel that is no longer valid for P2P use. It is also
7442 * possible that due to policy consideration, it would be preferable to
7443 * move it to a frequency already used by other station interfaces.
7445 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7451 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7452 struct wpa_scan_results *scan_res)
7454 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7458 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7460 struct wpa_global *global = wpa_s->global;
7464 if (global->p2p == NULL)
7467 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7469 if (wpa_s->pending_interface_name[0] &&
7470 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7473 peer = p2p_get_go_neg_peer(global->p2p);
7475 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7476 MACSTR, MAC2STR(peer));
7477 p2p_unauthorize(global->p2p, peer);
7481 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7482 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7483 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7487 if (wpa_s->pending_pd_before_join) {
7488 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7489 wpa_s->pending_pd_before_join = 0;
7493 wpas_p2p_stop_find(wpa_s);
7495 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7496 if (wpa_s == global->p2p_group_formation &&
7497 (wpa_s->p2p_in_provisioning ||
7498 wpa_s->parent->pending_interface_type ==
7499 WPA_IF_P2P_CLIENT)) {
7500 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7501 "formation found - cancelling",
7504 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7505 wpa_s->p2pdev, NULL);
7506 if (wpa_s->p2p_in_provisioning) {
7507 wpas_group_formation_completed(wpa_s, 0, 0);
7510 wpas_p2p_group_delete(wpa_s,
7511 P2P_GROUP_REMOVAL_REQUESTED);
7513 } else if (wpa_s->p2p_in_invitation) {
7514 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7517 wpas_p2p_group_formation_failed(wpa_s, 0);
7523 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7531 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7533 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7536 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7537 "being available anymore");
7538 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7542 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7543 int freq_24, int freq_5, int freq_overall)
7545 struct p2p_data *p2p = wpa_s->global->p2p;
7548 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7552 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7555 struct p2p_data *p2p = wpa_s->global->p2p;
7560 if (hwaddr_aton(addr, peer))
7563 return p2p_unauthorize(p2p, peer);
7568 * wpas_p2p_disconnect - Disconnect from a P2P Group
7569 * @wpa_s: Pointer to wpa_supplicant data
7570 * Returns: 0 on success, -1 on failure
7572 * This can be used to disconnect from a group in which the local end is a P2P
7573 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7574 * virtual network interface was created for this group, that interface will be
7575 * removed. Otherwise, only the configured P2P group network will be removed
7576 * from the interface.
7578 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7584 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7589 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7593 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7596 ret = p2p_in_progress(wpa_s->global->p2p);
7599 * Check whether there is an ongoing WPS provisioning step (or
7600 * other parts of group formation) on another interface since
7601 * p2p_in_progress() does not report this to avoid issues for
7602 * scans during such provisioning step.
7604 if (wpa_s->global->p2p_group_formation &&
7605 wpa_s->global->p2p_group_formation != wpa_s) {
7606 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7607 "in group formation",
7608 wpa_s->global->p2p_group_formation->ifname);
7613 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7614 struct os_reltime now;
7615 os_get_reltime(&now);
7616 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7617 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7618 /* Wait for the first client has expired */
7619 wpa_s->global->p2p_go_wait_client.sec = 0;
7621 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7630 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7631 struct wpa_ssid *ssid)
7633 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7634 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7635 wpa_s->p2pdev, NULL) > 0) {
7637 * Remove the network by scheduling the group formation
7638 * timeout to happen immediately. The teardown code
7639 * needs to be scheduled to run asynch later so that we
7640 * don't delete data from under ourselves unexpectedly.
7641 * Calling wpas_p2p_group_formation_timeout directly
7642 * causes a series of crashes in WPS failure scenarios.
7644 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7645 "P2P group network getting removed");
7646 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7647 wpa_s->p2pdev, NULL);
7652 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7653 const u8 *addr, const u8 *ssid,
7659 for (s = wpa_s->conf->ssid; s; s = s->next) {
7660 if (s->disabled != 2)
7663 (ssid_len != s->ssid_len ||
7664 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7667 if (s->mode == WPAS_MODE_P2P_GO)
7671 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7672 return s; /* peer is GO in the persistent group */
7673 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7675 for (i = 0; i < s->num_p2p_clients; i++) {
7676 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7677 addr, ETH_ALEN) == 0)
7678 return s; /* peer is P2P client in persistent
7687 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7690 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7691 wpa_s->p2pdev, NULL) > 0) {
7693 * This can happen if WPS provisioning step is not terminated
7694 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7695 * peer was able to connect, there is no need to time out group
7696 * formation after this, though. In addition, this is used with
7697 * the initial connection wait on the GO as a separate formation
7698 * timeout and as such, expected to be hit after the initial WPS
7699 * provisioning step.
7701 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7703 if (!wpa_s->p2p_go_group_formation_completed &&
7704 !wpa_s->group_formation_reported) {
7706 * GO has not yet notified group formation success since
7707 * the WPS step was not completed cleanly. Do that
7708 * notification now since the P2P Client was able to
7709 * connect and as such, must have received the
7710 * credential from the WPS step.
7712 if (wpa_s->global->p2p)
7713 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7714 wpas_group_formation_completed(wpa_s, 1, 0);
7717 if (!wpa_s->p2p_go_group_formation_completed) {
7718 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7719 wpa_s->p2p_go_group_formation_completed = 1;
7720 wpa_s->global->p2p_group_formation = NULL;
7721 wpa_s->p2p_in_provisioning = 0;
7722 wpa_s->p2p_in_invitation = 0;
7724 wpa_s->global->p2p_go_wait_client.sec = 0;
7727 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7731 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7734 struct wpa_supplicant *group = wpa_s;
7737 if (wpa_s->global->p2p_group_formation)
7738 group = wpa_s->global->p2p_group_formation;
7739 wpa_s = wpa_s->global->p2p_init_wpa_s;
7740 offchannel_send_action_done(wpa_s);
7742 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7743 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7744 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7745 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7746 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7747 wpa_s->p2p_go_vht_center_freq2,
7748 wpa_s->p2p_persistent_id,
7749 wpa_s->p2p_pd_before_go_neg,
7752 wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7757 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7761 if (!wpa_s->p2p_fallback_to_go_neg ||
7762 wpa_s->p2p_in_provisioning <= 5)
7765 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7766 return 0; /* peer operating as a GO */
7768 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7769 "fallback to GO Negotiation");
7770 wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7771 "reason=GO-not-found");
7772 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7774 return res == 1 ? 2 : 1;
7778 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7780 struct wpa_supplicant *ifs;
7782 if (wpa_s->wpa_state > WPA_SCANNING) {
7783 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7784 "concurrent operation",
7785 wpa_s->conf->p2p_search_delay);
7786 return wpa_s->conf->p2p_search_delay;
7789 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7791 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7792 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7793 "delay due to concurrent operation on "
7795 wpa_s->conf->p2p_search_delay,
7797 return wpa_s->conf->p2p_search_delay;
7805 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7806 struct wpa_ssid *s, const u8 *addr,
7809 struct psk_list_entry *psk, *tmp;
7812 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7814 if ((iface_addr && !psk->p2p &&
7815 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7816 (!iface_addr && psk->p2p &&
7817 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7818 wpa_dbg(wpa_s, MSG_DEBUG,
7819 "P2P: Remove persistent group PSK list entry for "
7821 MAC2STR(psk->addr), psk->p2p);
7822 dl_list_del(&psk->list);
7832 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7833 const u8 *p2p_dev_addr,
7834 const u8 *psk, size_t psk_len)
7836 struct wpa_ssid *ssid = wpa_s->current_ssid;
7837 struct wpa_ssid *persistent;
7838 struct psk_list_entry *p, *last;
7840 if (psk_len != sizeof(p->psk))
7844 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7845 " p2p_dev_addr=" MACSTR,
7846 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7847 if (is_zero_ether_addr(p2p_dev_addr))
7848 p2p_dev_addr = NULL;
7850 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7854 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7855 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7856 /* To be added to persistent group once created */
7857 if (wpa_s->global->add_psk == NULL) {
7858 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7859 if (wpa_s->global->add_psk == NULL)
7862 p = wpa_s->global->add_psk;
7865 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7868 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7870 os_memcpy(p->psk, psk, psk_len);
7874 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7875 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7879 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
7882 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7886 p = os_zalloc(sizeof(*p));
7891 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7894 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7896 os_memcpy(p->psk, psk, psk_len);
7898 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7899 (last = dl_list_last(&persistent->psk_list,
7900 struct psk_list_entry, list))) {
7901 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7902 MACSTR " (p2p=%u) to make room for a new one",
7903 MAC2STR(last->addr), last->p2p);
7904 dl_list_del(&last->list);
7908 wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
7909 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7910 p2p_dev_addr == NULL);
7912 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7913 MACSTR, MAC2STR(p2p_dev_addr));
7915 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7918 dl_list_add(&persistent->psk_list, &p->list);
7920 if (wpa_s->p2pdev->conf->update_config &&
7921 wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
7922 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7926 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7927 struct wpa_ssid *s, const u8 *addr,
7932 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7933 if (res > 0 && wpa_s->conf->update_config &&
7934 wpa_config_write(wpa_s->confname, wpa_s->conf))
7935 wpa_dbg(wpa_s, MSG_DEBUG,
7936 "P2P: Failed to update configuration");
7940 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7941 const u8 *peer, int iface_addr)
7943 struct hostapd_data *hapd;
7944 struct hostapd_wpa_psk *psk, *prev, *rem;
7945 struct sta_info *sta;
7947 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7948 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7951 /* Remove per-station PSK entry */
7952 hapd = wpa_s->ap_iface->bss[0];
7954 psk = hapd->conf->ssid.wpa_psk;
7956 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7958 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7959 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7960 MACSTR " iface_addr=%d",
7961 MAC2STR(peer), iface_addr);
7963 prev->next = psk->next;
7965 hapd->conf->ssid.wpa_psk = psk->next;
7975 /* Disconnect from group */
7977 sta = ap_get_sta(hapd, peer);
7979 sta = ap_get_sta_p2p(hapd, peer);
7981 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7982 " (iface_addr=%d) from group",
7983 MAC2STR(peer), iface_addr);
7984 hostapd_drv_sta_deauth(hapd, sta->addr,
7985 WLAN_REASON_DEAUTH_LEAVING);
7986 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7991 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7995 struct wpa_supplicant *w;
7996 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
7998 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8000 /* Remove from any persistent group */
8001 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8002 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8005 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8006 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8009 /* Remove from any operating group */
8010 for (w = wpa_s->global->ifaces; w; w = w->next)
8011 wpas_p2p_remove_client_go(w, peer, iface_addr);
8015 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8017 struct wpa_supplicant *wpa_s = eloop_ctx;
8018 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8022 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8024 struct wpa_supplicant *wpa_s = eloop_ctx;
8026 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8027 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8031 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8032 struct wpa_ssid *ssid)
8034 struct wpa_supplicant *iface;
8036 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8037 if (!iface->current_ssid ||
8038 iface->current_ssid->frequency == freq ||
8039 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8040 !iface->current_ssid->p2p_group))
8043 /* Remove the connection with least priority */
8044 if (!wpas_is_p2p_prioritized(iface)) {
8045 /* STA connection has priority over existing
8046 * P2P connection, so remove the interface. */
8047 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8048 eloop_register_timeout(0, 0,
8049 wpas_p2p_group_freq_conflict,
8051 /* If connection in progress is P2P connection, do not
8052 * proceed for the connection. */
8058 /* P2P connection has priority, disable the STA network
8060 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8062 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8063 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8064 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8066 /* If P2P connection is in progress, continue
8079 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8081 struct wpa_ssid *ssid = wpa_s->current_ssid;
8083 if (ssid == NULL || !ssid->p2p_group)
8086 if (wpa_s->p2p_last_4way_hs_fail &&
8087 wpa_s->p2p_last_4way_hs_fail == ssid) {
8088 u8 go_dev_addr[ETH_ALEN];
8089 struct wpa_ssid *persistent;
8091 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8093 ssid->ssid_len) <= 0) {
8094 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8098 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8099 MACSTR, MAC2STR(go_dev_addr));
8100 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
8103 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8104 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8107 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
8108 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8111 wpa_s->p2p_last_4way_hs_fail = NULL;
8113 * Remove the group from a timeout to avoid issues with caller
8114 * continuing to use the interface if this is on a P2P group
8117 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8122 wpa_s->p2p_last_4way_hs_fail = ssid;
8127 #ifdef CONFIG_WPS_NFC
8129 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8137 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8141 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8142 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8149 wpabuf_put_be16(ret, wsc_len);
8151 wpabuf_put_buf(ret, wsc);
8152 wpabuf_put_be16(ret, wpabuf_len(p2p));
8153 wpabuf_put_buf(ret, p2p);
8157 wpa_hexdump_buf(MSG_DEBUG,
8158 "P2P: Generated NFC connection handover message", ret);
8162 tmp = ndef_build_p2p(ret);
8165 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8175 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8176 struct wpa_ssid **ssid, u8 *go_dev_addr)
8178 struct wpa_supplicant *iface;
8181 os_memset(go_dev_addr, 0, ETH_ALEN);
8184 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8185 if (iface->wpa_state < WPA_ASSOCIATING ||
8186 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8187 !iface->current_ssid->p2p_group ||
8188 iface->current_ssid->mode != WPAS_MODE_INFRA)
8191 *ssid = iface->current_ssid;
8193 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8194 return iface->assoc_freq;
8200 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8203 struct wpabuf *wsc, *p2p;
8204 struct wpa_ssid *ssid;
8205 u8 go_dev_addr[ETH_ALEN];
8206 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8208 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8209 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8213 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8214 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8215 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8216 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8220 if (cli_freq == 0) {
8221 wsc = wps_build_nfc_handover_req_p2p(
8222 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8225 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8226 go_dev_addr, ssid ? ssid->ssid : NULL,
8227 ssid ? ssid->ssid_len : 0);
8229 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8233 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8236 struct wpabuf *wsc, *p2p;
8237 struct wpa_ssid *ssid;
8238 u8 go_dev_addr[ETH_ALEN];
8239 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8241 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8244 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8245 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8246 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8249 if (cli_freq == 0) {
8250 wsc = wps_build_nfc_handover_sel_p2p(
8252 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8253 DEV_PW_NFC_CONNECTION_HANDOVER,
8254 wpa_s->conf->wps_nfc_dh_pubkey,
8255 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8258 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8259 go_dev_addr, ssid ? ssid->ssid : NULL,
8260 ssid ? ssid->ssid_len : 0);
8262 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8266 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8267 struct p2p_nfc_params *params)
8269 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8270 "connection handover (freq=%d)",
8273 if (params->go_freq && params->go_ssid_len) {
8274 wpa_s->p2p_wps_method = WPS_NFC;
8275 wpa_s->pending_join_wps_method = WPS_NFC;
8276 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8277 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8279 return wpas_p2p_join_start(wpa_s, params->go_freq,
8281 params->go_ssid_len);
8284 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8285 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8286 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8287 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8288 params->go_ssid_len ? params->go_ssid : NULL,
8289 params->go_ssid_len);
8293 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8294 struct p2p_nfc_params *params, int tag)
8296 int res, persistent;
8297 struct wpa_ssid *ssid;
8299 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8300 "connection handover");
8301 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8302 ssid = wpa_s->current_ssid;
8305 if (ssid->mode != WPAS_MODE_P2P_GO)
8307 if (wpa_s->ap_iface == NULL)
8311 if (wpa_s == NULL) {
8312 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8316 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8317 DEV_PW_NFC_CONNECTION_HANDOVER &&
8318 !wpa_s->parent->p2p_oob_dev_pw) {
8319 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8322 res = wpas_ap_wps_add_nfc_pw(
8323 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8324 wpa_s->parent->p2p_oob_dev_pw,
8325 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8326 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8331 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8335 if (!params->peer ||
8336 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8339 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8340 " to join", MAC2STR(params->peer->p2p_device_addr));
8342 wpa_s->global->p2p_invite_group = wpa_s;
8343 persistent = ssid->p2p_persistent_group &&
8344 wpas_p2p_get_persistent(wpa_s->parent,
8345 params->peer->p2p_device_addr,
8346 ssid->ssid, ssid->ssid_len);
8347 wpa_s->parent->pending_invite_ssid_id = -1;
8349 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8350 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8351 ssid->ssid, ssid->ssid_len, ssid->frequency,
8352 wpa_s->global->p2p_dev_addr, persistent, 0,
8353 wpa_s->parent->p2p_oob_dev_pw_id);
8357 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8358 struct p2p_nfc_params *params,
8361 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8362 "connection handover");
8363 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8364 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8365 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8366 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8371 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8372 struct p2p_nfc_params *params,
8377 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8378 "connection handover");
8379 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8380 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8381 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8382 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8387 res = wpas_p2p_listen(wpa_s, 60);
8389 p2p_unauthorize(wpa_s->global->p2p,
8390 params->peer->p2p_device_addr);
8397 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8398 const struct wpabuf *data,
8399 int sel, int tag, int forced_freq)
8401 const u8 *pos, *end;
8403 struct p2p_nfc_params params;
8406 os_memset(¶ms, 0, sizeof(params));
8409 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8411 pos = wpabuf_head(data);
8412 end = pos + wpabuf_len(data);
8414 if (end - pos < 2) {
8415 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8419 len = WPA_GET_BE16(pos);
8421 if (len > end - pos) {
8422 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8426 params.wsc_attr = pos;
8427 params.wsc_len = len;
8430 if (end - pos < 2) {
8431 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8435 len = WPA_GET_BE16(pos);
8437 if (len > end - pos) {
8438 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8442 params.p2p_attr = pos;
8443 params.p2p_len = len;
8446 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8447 params.wsc_attr, params.wsc_len);
8448 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8449 params.p2p_attr, params.p2p_len);
8451 wpa_hexdump(MSG_DEBUG,
8452 "P2P: Ignored extra data after P2P attributes",
8456 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8460 if (params.next_step == NO_ACTION)
8463 if (params.next_step == BOTH_GO) {
8464 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8465 MAC2STR(params.peer->p2p_device_addr));
8469 if (params.next_step == PEER_CLIENT) {
8470 if (!is_zero_ether_addr(params.go_dev_addr)) {
8471 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8472 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8474 MAC2STR(params.peer->p2p_device_addr),
8476 MAC2STR(params.go_dev_addr),
8477 wpa_ssid_txt(params.go_ssid,
8478 params.go_ssid_len));
8480 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8481 "peer=" MACSTR " freq=%d",
8482 MAC2STR(params.peer->p2p_device_addr),
8488 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8489 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8490 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8494 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8495 wpa_s->p2p_oob_dev_pw = NULL;
8497 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8498 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8503 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8504 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8505 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8506 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8507 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8508 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8509 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8513 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8514 "peer OOB Device Password Id %u", id);
8517 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8518 "Device Password Id %u", id);
8519 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8520 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8521 params.oob_dev_pw_len -
8522 WPS_OOB_PUBKEY_HASH_LEN - 2);
8523 wpa_s->p2p_oob_dev_pw_id = id;
8524 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8525 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8526 params.oob_dev_pw_len -
8527 WPS_OOB_PUBKEY_HASH_LEN - 2);
8528 if (wpa_s->p2p_oob_dev_pw == NULL)
8531 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8532 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8533 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8536 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8537 "without Device Password");
8538 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8541 switch (params.next_step) {
8545 /* already covered above */
8548 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8550 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8552 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8554 /* TODO: use own OOB Dev Pw */
8555 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8562 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8563 const struct wpabuf *data, int forced_freq)
8565 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8568 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8572 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8573 const struct wpabuf *req,
8574 const struct wpabuf *sel, int forced_freq)
8579 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8582 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8584 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8585 wpabuf_head(req), wpabuf_len(req));
8586 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8587 wpabuf_head(sel), wpabuf_len(sel));
8589 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8590 tmp = ndef_parse_p2p(init ? sel : req);
8592 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8596 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8604 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8607 int go_intent = wpa_s->conf->p2p_go_intent;
8608 struct wpa_supplicant *iface;
8610 if (wpa_s->global->p2p == NULL)
8614 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8615 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8617 if (!iface->ap_iface)
8619 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8621 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8623 if (wpa_s->p2p_nfc_tag_enabled)
8624 wpas_p2p_remove_pending_group_interface(wpa_s);
8625 wpa_s->p2p_nfc_tag_enabled = 0;
8629 if (wpa_s->global->p2p_disabled)
8632 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8633 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8634 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8635 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8636 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8637 "to allow static handover cases");
8641 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8643 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8644 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8645 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8646 if (wpa_s->p2p_oob_dev_pw == NULL)
8648 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8650 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8651 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8653 * P2P Group Interface present and the command came on group
8654 * interface, so enable the token for the current interface.
8656 wpa_s->create_p2p_iface = 0;
8658 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8661 if (wpa_s->create_p2p_iface) {
8662 enum wpa_driver_if_type iftype;
8663 /* Prepare to add a new interface for the group */
8664 iftype = WPA_IF_P2P_GROUP;
8665 if (go_intent == 15)
8666 iftype = WPA_IF_P2P_GO;
8667 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8668 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8669 "interface for the group");
8673 if_addr = wpa_s->pending_interface_addr;
8675 if_addr = wpa_s->own_addr;
8677 wpa_s->p2p_nfc_tag_enabled = enabled;
8679 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8680 struct hostapd_data *hapd;
8681 if (iface->ap_iface == NULL)
8683 hapd = iface->ap_iface->bss[0];
8684 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8685 hapd->conf->wps_nfc_dh_pubkey =
8686 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8687 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8688 hapd->conf->wps_nfc_dh_privkey =
8689 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8690 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8691 hapd->conf->wps_nfc_dev_pw =
8692 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8693 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8695 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8696 wpa_dbg(iface, MSG_DEBUG,
8697 "P2P: Failed to enable NFC Tag for GO");
8700 p2p_set_authorized_oob_dev_pw_id(
8701 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8707 #endif /* CONFIG_WPS_NFC */
8710 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8711 struct wpa_used_freq_data *freqs,
8714 u8 curr_chan, cand, chan;
8718 * If possible, optimize the Listen channel to be a channel that is
8719 * already used by one of the other interfaces.
8721 if (!wpa_s->conf->p2p_optimize_listen_chan)
8724 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8727 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8728 for (i = 0, cand = 0; i < num; i++) {
8729 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8730 if (curr_chan == chan) {
8735 if (chan == 1 || chan == 6 || chan == 11)
8740 wpa_dbg(wpa_s, MSG_DEBUG,
8741 "P2P: Update Listen channel to %u based on operating channel",
8743 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8748 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8750 struct hostapd_config *conf;
8751 struct p2p_go_neg_results params;
8752 struct csa_settings csa_settings;
8753 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8754 int old_freq = current_ssid->frequency;
8757 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8758 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8763 * TODO: This function may not always work correctly. For example,
8764 * when we have a running GO and a BSS on a DFS channel.
8766 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8767 wpa_dbg(wpa_s, MSG_DEBUG,
8768 "P2P CSA: Failed to select new frequency for GO");
8772 if (current_ssid->frequency == params.freq) {
8773 wpa_dbg(wpa_s, MSG_DEBUG,
8774 "P2P CSA: Selected same frequency - not moving GO");
8778 conf = hostapd_config_defaults();
8780 wpa_dbg(wpa_s, MSG_DEBUG,
8781 "P2P CSA: Failed to allocate default config");
8785 current_ssid->frequency = params.freq;
8786 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8787 wpa_dbg(wpa_s, MSG_DEBUG,
8788 "P2P CSA: Failed to create new GO config");
8793 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8794 wpa_dbg(wpa_s, MSG_DEBUG,
8795 "P2P CSA: CSA to a different band is not supported");
8800 os_memset(&csa_settings, 0, sizeof(csa_settings));
8801 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8802 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8803 csa_settings.freq_params.freq = params.freq;
8804 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8805 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8806 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8808 if (conf->ieee80211ac) {
8809 int freq1 = 0, freq2 = 0;
8812 if (ieee80211_freq_to_channel_ext(params.freq,
8813 conf->secondary_channel,
8814 conf->vht_oper_chwidth,
8816 NUM_HOSTAPD_MODES) {
8817 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8822 if (conf->vht_oper_centr_freq_seg0_idx)
8823 freq1 = ieee80211_chan_to_freq(
8825 conf->vht_oper_centr_freq_seg0_idx);
8827 if (conf->vht_oper_centr_freq_seg1_idx)
8828 freq2 = ieee80211_chan_to_freq(
8830 conf->vht_oper_centr_freq_seg1_idx);
8832 if (freq1 < 0 || freq2 < 0) {
8833 wpa_dbg(wpa_s, MSG_DEBUG,
8834 "P2P CSA: Selected invalid VHT center freqs");
8839 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8840 csa_settings.freq_params.center_freq1 = freq1;
8841 csa_settings.freq_params.center_freq2 = freq2;
8843 switch (conf->vht_oper_chwidth) {
8844 case VHT_CHANWIDTH_80MHZ:
8845 case VHT_CHANWIDTH_80P80MHZ:
8846 csa_settings.freq_params.bandwidth = 80;
8848 case VHT_CHANWIDTH_160MHZ:
8849 csa_settings.freq_params.bandwidth = 160;
8854 ret = ap_switch_channel(wpa_s, &csa_settings);
8856 current_ssid->frequency = old_freq;
8857 hostapd_config_free(conf);
8862 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8864 struct p2p_go_neg_results params;
8865 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8867 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8869 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8870 current_ssid->frequency);
8872 /* Stop the AP functionality */
8873 /* TODO: Should do this in a way that does not indicated to possible
8874 * P2P Clients in the group that the group is terminated. */
8875 wpa_supplicant_ap_deinit(wpa_s);
8877 /* Reselect the GO frequency */
8878 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8879 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8880 wpas_p2p_group_delete(wpa_s,
8881 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8884 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8888 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8889 wpa_printf(MSG_DEBUG,
8890 "P2P: Selected freq (%u MHz) is not valid for P2P",
8892 wpas_p2p_group_delete(wpa_s,
8893 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8897 /* Update the frequency */
8898 current_ssid->frequency = params.freq;
8899 wpa_s->connect_without_scan = current_ssid;
8900 wpa_s->reassociate = 1;
8901 wpa_s->disconnected = 0;
8902 wpa_supplicant_req_scan(wpa_s, 0, 0);
8906 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8908 struct wpa_supplicant *wpa_s = eloop_ctx;
8910 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8913 wpas_p2p_go_update_common_freqs(wpa_s);
8915 /* Do not move GO in the middle of a CSA */
8916 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8917 wpa_printf(MSG_DEBUG,
8918 "P2P: CSA is in progress - not moving GO");
8923 * First, try a channel switch flow. If it is not supported or fails,
8924 * take down the GO and bring it up again.
8926 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8927 wpas_p2p_move_go_no_csa(wpa_s);
8931 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8933 struct wpa_supplicant *wpa_s = eloop_ctx;
8934 struct wpa_used_freq_data *freqs = NULL;
8935 unsigned int num = wpa_s->num_multichan_concurrent;
8937 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8941 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8943 /* Previous attempt to move a GO was not possible -- try again. */
8944 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8945 WPAS_P2P_CHANNEL_UPDATE_ANY);
8952 * Consider moving a GO from its currently used frequency:
8953 * 1. It is possible that due to regulatory consideration the frequency
8954 * can no longer be used and there is a need to evacuate the GO.
8955 * 2. It is possible that due to MCC considerations, it would be preferable
8956 * to move the GO to a channel that is currently used by some other
8957 * station interface.
8959 * In case a frequency that became invalid is once again valid, cancel a
8960 * previously initiated GO frequency change.
8962 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8963 struct wpa_used_freq_data *freqs,
8966 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8967 unsigned int timeout;
8970 wpas_p2p_go_update_common_freqs(wpa_s);
8972 freq = wpa_s->current_ssid->frequency;
8973 for (i = 0, invalid_freq = 0; i < num; i++) {
8974 if (freqs[i].freq == freq) {
8975 flags = freqs[i].flags;
8977 /* The channel is invalid, must change it */
8978 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8979 wpa_dbg(wpa_s, MSG_DEBUG,
8980 "P2P: Freq=%d MHz no longer valid for GO",
8984 } else if (freqs[i].flags == 0) {
8985 /* Freq is not used by any other station interface */
8987 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8989 /* Freq is not valid for P2P use cases */
8991 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8992 P2P_GO_FREQ_MOVE_SCM) {
8994 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8995 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8996 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8998 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
8999 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9000 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9001 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9003 } else if ((wpa_s->drv_flags &
9004 WPA_DRIVER_FLAGS_AP_CSA) &&
9005 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9009 * We do not support CSA between bands, so move
9010 * GO only within the same band.
9012 if (wpa_s->ap_iface->current_mode->mode ==
9013 ieee80211_freq_to_chan(freqs[i].freq,
9020 wpa_dbg(wpa_s, MSG_DEBUG,
9021 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9022 invalid_freq, policy_move, flags);
9025 * The channel is valid, or we are going to have a policy move, so
9028 if (!invalid_freq || policy_move) {
9029 wpa_dbg(wpa_s, MSG_DEBUG,
9030 "P2P: Cancel a GO move from freq=%d MHz", freq);
9031 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9033 if (wpas_p2p_in_progress(wpa_s)) {
9034 wpa_dbg(wpa_s, MSG_DEBUG,
9035 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9036 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9038 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9039 wpas_p2p_reconsider_moving_go,
9045 if (!invalid_freq && (!policy_move || flags != 0)) {
9046 wpa_dbg(wpa_s, MSG_DEBUG,
9047 "P2P: Not initiating a GO frequency change");
9052 * Do not consider moving GO if it is in the middle of a CSA. When the
9053 * CSA is finished this flow should be retriggered.
9055 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9056 wpa_dbg(wpa_s, MSG_DEBUG,
9057 "P2P: Not initiating a GO frequency change - CSA is in progress");
9061 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9062 timeout = P2P_GO_FREQ_CHANGE_TIME;
9066 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9068 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9069 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9073 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9074 struct wpa_used_freq_data *freqs,
9076 enum wpas_p2p_channel_update_trig trig)
9078 struct wpa_supplicant *ifs;
9080 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9084 * Travers all the radio interfaces, and for each GO interface, check
9085 * if there is a need to move the GO from the frequency it is using,
9086 * or in case the frequency is valid again, cancel the evacuation flow.
9088 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9090 if (ifs->current_ssid == NULL ||
9091 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9095 * The GO was just started or completed channel switch, no need
9099 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9100 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9101 wpa_dbg(wpa_s, MSG_DEBUG,
9102 "P2P: GO move - schedule re-consideration");
9103 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9104 wpas_p2p_reconsider_moving_go,
9109 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9114 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9116 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9119 wpas_p2p_update_channel_list(wpa_s,
9120 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9124 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9126 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9127 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9128 "the management interface is being removed");
9129 wpas_p2p_deinit_global(wpa_s->global);
9134 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9136 if (wpa_s->ap_iface->bss)
9137 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9138 wpas_p2p_group_deinit(wpa_s);