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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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->parent, 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->parent, 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->parent, 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->parent, 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->parent, 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->parent, 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->parent,
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->parent, 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->parent->p2p_oob_dev_pw,
1636 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1637 wpa_s->parent->p2p_oob_dev_pw_id ==
1638 DEV_PW_NFC_CONNECTION_HANDOVER ?
1639 wpa_s->parent->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->parent, 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->parent->conf->update_config &&
1731 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->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->parent->p2ps_method_config_any) {
1770 if (is_zero_ether_addr(wpa_s->parent->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->parent->p2ps_join_addr));
1780 wpa_supplicant_ap_wps_pin(
1781 wpa_s, wpa_s->parent->p2ps_join_addr,
1782 "12345670", NULL, 0, 0);
1784 wpa_s->parent->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->parent, 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->parent, NULL);
1808 eloop_register_timeout(
1809 wpa_s->p2p_first_connection_timeout, 0,
1810 wpas_p2p_group_formation_timeout,
1811 wpa_s->parent, 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->parent->p2p_oob_dev_pw_id !=
1830 DEV_PW_NFC_CONNECTION_HANDOVER &&
1831 !wpa_s->parent->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->parent->p2p_oob_dev_pw_id,
1837 wpa_s->parent->p2p_oob_dev_pw,
1838 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1839 wpa_s->parent->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;
1902 if (os_strlen(params->passphrase) > 0) {
1903 ssid->passphrase = os_strdup(params->passphrase);
1904 if (ssid->passphrase == NULL) {
1905 wpa_msg_global(wpa_s, MSG_ERROR,
1906 "P2P: Failed to copy passphrase for GO");
1907 wpa_config_remove_network(wpa_s->conf, ssid->id);
1911 ssid->passphrase = NULL;
1912 ssid->psk_set = params->psk_set;
1914 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1915 else if (ssid->passphrase)
1916 wpa_config_update_psk(ssid);
1917 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1919 wpa_s->ap_configured_cb = p2p_go_configured;
1920 wpa_s->ap_configured_cb_ctx = wpa_s;
1921 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1922 wpa_s->scan_req = NORMAL_SCAN_REQ;
1923 wpa_s->connect_without_scan = ssid;
1924 wpa_s->reassociate = 1;
1925 wpa_s->disconnected = 0;
1926 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1928 wpa_supplicant_req_scan(wpa_s, 0, 0);
1932 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1933 const struct wpa_supplicant *src)
1935 struct wpa_config *d;
1936 const struct wpa_config *s;
1941 #define C(n) if (s->n) d->n = os_strdup(s->n)
1950 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1951 os_memcpy(d->sec_device_type, s->sec_device_type,
1952 sizeof(d->sec_device_type));
1953 d->num_sec_device_types = s->num_sec_device_types;
1955 d->p2p_group_idle = s->p2p_group_idle;
1956 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1957 d->p2p_intra_bss = s->p2p_intra_bss;
1958 d->persistent_reconnect = s->persistent_reconnect;
1959 d->max_num_sta = s->max_num_sta;
1960 d->pbc_in_m1 = s->pbc_in_m1;
1961 d->ignore_old_scan_res = s->ignore_old_scan_res;
1962 d->beacon_int = s->beacon_int;
1963 d->dtim_period = s->dtim_period;
1964 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1965 d->disassoc_low_ack = s->disassoc_low_ack;
1966 d->disable_scan_offload = s->disable_scan_offload;
1967 d->passive_scan = s->passive_scan;
1969 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1970 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1971 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1973 d->p2p_cli_probe = s->p2p_cli_probe;
1977 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1978 char *ifname, size_t len)
1980 char *ifname_ptr = wpa_s->ifname;
1982 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1983 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1984 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1987 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1988 if (os_strlen(ifname) >= IFNAMSIZ &&
1989 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1992 /* Try to avoid going over the IFNAMSIZ length limit */
1993 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1994 if (os_snprintf_error(len, res) && len)
1995 ifname[len - 1] = '\0';
2000 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2001 enum wpa_driver_if_type type)
2003 char ifname[120], force_ifname[120];
2005 if (wpa_s->pending_interface_name[0]) {
2006 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2007 "- skip creation of a new one");
2008 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2009 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2010 "unknown?! ifname='%s'",
2011 wpa_s->pending_interface_name);
2017 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2018 force_ifname[0] = '\0';
2020 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2022 wpa_s->p2p_group_idx++;
2024 wpa_s->pending_interface_type = type;
2025 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2026 wpa_s->pending_interface_addr, NULL) < 0) {
2027 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2032 if (force_ifname[0]) {
2033 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2035 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2036 sizeof(wpa_s->pending_interface_name));
2038 os_strlcpy(wpa_s->pending_interface_name, ifname,
2039 sizeof(wpa_s->pending_interface_name));
2040 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2041 MACSTR, wpa_s->pending_interface_name,
2042 MAC2STR(wpa_s->pending_interface_addr));
2048 static void wpas_p2p_remove_pending_group_interface(
2049 struct wpa_supplicant *wpa_s)
2051 if (!wpa_s->pending_interface_name[0] ||
2052 is_zero_ether_addr(wpa_s->pending_interface_addr))
2053 return; /* No pending virtual interface */
2055 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2056 wpa_s->pending_interface_name);
2057 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2058 wpa_s->pending_interface_name);
2059 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2060 wpa_s->pending_interface_name[0] = '\0';
2061 wpa_s->global->pending_group_iface_for_p2ps = 0;
2065 static struct wpa_supplicant *
2066 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2068 struct wpa_interface iface;
2069 struct wpa_supplicant *group_wpa_s;
2071 if (!wpa_s->pending_interface_name[0]) {
2072 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2073 if (!wpas_p2p_create_iface(wpa_s))
2076 * Something has forced us to remove the pending interface; try
2077 * to create a new one and hope for the best that we will get
2078 * the same local address.
2080 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2081 WPA_IF_P2P_CLIENT) < 0)
2085 os_memset(&iface, 0, sizeof(iface));
2086 iface.ifname = wpa_s->pending_interface_name;
2087 iface.driver = wpa_s->driver->name;
2088 if (wpa_s->conf->ctrl_interface == NULL &&
2089 wpa_s->parent != wpa_s &&
2091 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2092 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2094 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2095 iface.driver_param = wpa_s->conf->driver_param;
2096 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2097 if (group_wpa_s == NULL) {
2098 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2099 "wpa_supplicant interface");
2102 wpa_s->pending_interface_name[0] = '\0';
2103 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2104 P2P_GROUP_INTERFACE_CLIENT;
2105 wpa_s->global->p2p_group_formation = group_wpa_s;
2106 wpa_s->global->pending_group_iface_for_p2ps = 0;
2108 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2114 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2117 struct wpa_supplicant *wpa_s = eloop_ctx;
2118 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2119 wpas_p2p_group_formation_failed(wpa_s, 0);
2123 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2124 int already_deleted)
2126 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2127 wpa_s->parent, NULL);
2128 if (wpa_s->global->p2p)
2129 p2p_group_formation_failed(wpa_s->global->p2p);
2130 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2134 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2136 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2137 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2138 wpa_s->parent, NULL);
2139 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2140 wpa_s->parent, NULL);
2141 wpa_s->global->p2p_fail_on_wps_complete = 0;
2145 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2147 if (wpa_s->global->p2p_group_formation != wpa_s)
2149 /* Speed up group formation timeout since this cannot succeed */
2150 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2151 wpa_s->parent, NULL);
2152 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2153 wpa_s->parent, NULL);
2157 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2159 struct wpa_supplicant *wpa_s = ctx;
2161 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2162 wpa_drv_cancel_remain_on_channel(wpa_s);
2163 wpa_s->off_channel_freq = 0;
2164 wpa_s->roc_waiting_drv_freq = 0;
2168 wpa_msg_global(wpa_s, MSG_INFO,
2169 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2171 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2172 wpas_p2p_remove_pending_group_interface(wpa_s);
2176 if (!res->role_go) {
2177 /* Inform driver of the operating channel of GO. */
2178 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2181 if (wpa_s->p2p_go_ht40)
2183 if (wpa_s->p2p_go_vht)
2185 res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2186 res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2188 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2189 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2191 res->role_go ? "GO" : "client", res->freq, res->ht40,
2192 MAC2STR(res->peer_device_addr),
2193 MAC2STR(res->peer_interface_addr),
2194 p2p_wps_method_text(res->wps_method));
2195 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2197 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2198 struct wpa_ssid *ssid;
2199 ssid = wpa_config_get_network(wpa_s->conf,
2200 wpa_s->p2p_persistent_id);
2201 if (ssid && ssid->disabled == 2 &&
2202 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2203 size_t len = os_strlen(ssid->passphrase);
2204 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2205 "on requested persistent group");
2206 os_memcpy(res->passphrase, ssid->passphrase, len);
2207 res->passphrase[len] = '\0';
2211 if (wpa_s->create_p2p_iface) {
2212 struct wpa_supplicant *group_wpa_s =
2213 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2214 if (group_wpa_s == NULL) {
2215 wpas_p2p_remove_pending_group_interface(wpa_s);
2216 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2218 wpas_p2p_group_formation_failed(wpa_s, 1);
2221 if (group_wpa_s != wpa_s) {
2222 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2223 sizeof(group_wpa_s->p2p_pin));
2224 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2226 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2227 wpa_s->pending_interface_name[0] = '\0';
2228 group_wpa_s->p2p_in_provisioning = 1;
2231 wpas_start_wps_go(group_wpa_s, res, 1);
2233 os_get_reltime(&group_wpa_s->scan_min_time);
2234 wpas_start_wps_enrollee(group_wpa_s, res);
2237 wpa_s->p2p_in_provisioning = 1;
2238 wpa_s->global->p2p_group_formation = wpa_s;
2241 wpas_start_wps_go(wpa_s, res, 1);
2243 os_get_reltime(&wpa_s->scan_min_time);
2244 wpas_start_wps_enrollee(ctx, res);
2248 wpa_s->p2p_long_listen = 0;
2249 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2251 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2252 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2253 (res->peer_config_timeout % 100) * 10000,
2254 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2258 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2261 struct wpa_supplicant *wpa_s = ctx;
2262 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2263 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2264 dev_passwd_id, go_intent);
2266 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2270 static void wpas_dev_found(void *ctx, const u8 *addr,
2271 const struct p2p_peer_info *info,
2274 #ifndef CONFIG_NO_STDOUT_DEBUG
2275 struct wpa_supplicant *wpa_s = ctx;
2276 char devtype[WPS_DEV_TYPE_BUFSIZE];
2277 char *wfd_dev_info_hex = NULL;
2279 #ifdef CONFIG_WIFI_DISPLAY
2280 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2281 WFD_SUBELEM_DEVICE_INFO);
2282 #endif /* CONFIG_WIFI_DISPLAY */
2284 if (info->p2ps_instance) {
2286 const u8 *buf = wpabuf_head(info->p2ps_instance);
2287 size_t len = wpabuf_len(info->p2ps_instance);
2294 if (len < 4 + 2 + 1)
2296 id = WPA_GET_LE32(buf);
2298 methods = WPA_GET_BE16(buf);
2301 if (str_len > len - 4 - 2 - 1)
2303 os_memcpy(str, buf, str_len);
2304 str[str_len] = '\0';
2306 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2308 wpa_msg_global(wpa_s, MSG_INFO,
2309 P2P_EVENT_DEVICE_FOUND MACSTR
2310 " p2p_dev_addr=" MACSTR
2311 " pri_dev_type=%s name='%s'"
2312 " config_methods=0x%x"
2315 " adv_id=%x asp_svc=%s%s",
2317 MAC2STR(info->p2p_device_addr),
2318 wps_dev_type_bin2str(
2320 devtype, sizeof(devtype)),
2321 info->device_name, methods,
2322 info->dev_capab, info->group_capab,
2324 info->vendor_elems ?
2325 " vendor_elems=1" : "");
2330 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2331 " p2p_dev_addr=" MACSTR
2332 " pri_dev_type=%s name='%s' config_methods=0x%x "
2333 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2334 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2335 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2337 info->device_name, info->config_methods,
2338 info->dev_capab, info->group_capab,
2339 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2340 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2341 info->vendor_elems ? " vendor_elems=1" : "",
2345 os_free(wfd_dev_info_hex);
2346 #endif /* CONFIG_NO_STDOUT_DEBUG */
2348 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2352 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2354 struct wpa_supplicant *wpa_s = ctx;
2356 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2357 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2359 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2363 static void wpas_find_stopped(void *ctx)
2365 struct wpa_supplicant *wpa_s = ctx;
2366 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2367 wpas_notify_p2p_find_stopped(wpa_s);
2371 struct wpas_p2p_listen_work {
2373 unsigned int duration;
2374 struct wpabuf *probe_resp_ie;
2378 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2382 wpabuf_free(lwork->probe_resp_ie);
2387 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2389 struct wpas_p2p_listen_work *lwork;
2391 if (!wpa_s->p2p_listen_work)
2394 lwork = wpa_s->p2p_listen_work->ctx;
2395 wpas_p2p_listen_work_free(lwork);
2396 radio_work_done(wpa_s->p2p_listen_work);
2397 wpa_s->p2p_listen_work = NULL;
2401 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2403 struct wpa_supplicant *wpa_s = work->wpa_s;
2404 struct wpas_p2p_listen_work *lwork = work->ctx;
2405 unsigned int duration;
2408 if (work->started) {
2409 wpa_s->p2p_listen_work = NULL;
2410 wpas_stop_listen(wpa_s);
2412 wpas_p2p_listen_work_free(lwork);
2416 wpa_s->p2p_listen_work = work;
2418 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2420 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2421 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2422 "report received Probe Request frames");
2423 wpas_p2p_listen_work_done(wpa_s);
2427 wpa_s->pending_listen_freq = lwork->freq;
2428 wpa_s->pending_listen_duration = lwork->duration;
2430 duration = lwork->duration;
2431 #ifdef CONFIG_TESTING_OPTIONS
2432 if (wpa_s->extra_roc_dur) {
2433 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2434 duration, duration + wpa_s->extra_roc_dur);
2435 duration += wpa_s->extra_roc_dur;
2437 #endif /* CONFIG_TESTING_OPTIONS */
2439 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2440 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2441 "to remain on channel (%u MHz) for Listen "
2442 "state", lwork->freq);
2443 wpas_p2p_listen_work_done(wpa_s);
2444 wpa_s->pending_listen_freq = 0;
2447 wpa_s->off_channel_freq = 0;
2448 wpa_s->roc_waiting_drv_freq = lwork->freq;
2452 static int wpas_start_listen(void *ctx, unsigned int freq,
2453 unsigned int duration,
2454 const struct wpabuf *probe_resp_ie)
2456 struct wpa_supplicant *wpa_s = ctx;
2457 struct wpas_p2p_listen_work *lwork;
2459 if (wpa_s->p2p_listen_work) {
2460 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2464 lwork = os_zalloc(sizeof(*lwork));
2468 lwork->duration = duration;
2469 if (probe_resp_ie) {
2470 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2471 if (lwork->probe_resp_ie == NULL) {
2472 wpas_p2p_listen_work_free(lwork);
2477 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2479 wpas_p2p_listen_work_free(lwork);
2487 static void wpas_stop_listen(void *ctx)
2489 struct wpa_supplicant *wpa_s = ctx;
2490 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2491 wpa_drv_cancel_remain_on_channel(wpa_s);
2492 wpa_s->off_channel_freq = 0;
2493 wpa_s->roc_waiting_drv_freq = 0;
2495 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2498 * Don't cancel Probe Request RX reporting for a connected P2P Client
2499 * handling Probe Request frames.
2501 if (!wpa_s->p2p_cli_probe)
2502 wpa_drv_probe_req_report(wpa_s, 0);
2504 wpas_p2p_listen_work_done(wpa_s);
2508 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2511 struct wpa_supplicant *wpa_s = ctx;
2512 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2517 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2518 const u8 *peer, const char *params,
2519 unsigned int generated_pin)
2521 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2522 " %08d%s", MAC2STR(peer), generated_pin, params);
2526 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2527 const u8 *peer, const char *params)
2529 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2530 "%s", MAC2STR(peer), params);
2534 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2535 const u8 *dev_addr, const u8 *pri_dev_type,
2536 const char *dev_name, u16 supp_config_methods,
2537 u8 dev_capab, u8 group_capab, const u8 *group_id,
2538 size_t group_id_len)
2540 struct wpa_supplicant *wpa_s = ctx;
2541 char devtype[WPS_DEV_TYPE_BUFSIZE];
2543 u8 empty_dev_type[8];
2544 unsigned int generated_pin = 0;
2545 struct wpa_supplicant *group = NULL;
2549 for (group = wpa_s->global->ifaces; group; group = group->next)
2551 struct wpa_ssid *s = group->current_ssid;
2553 s->mode == WPAS_MODE_P2P_GO &&
2554 group_id_len - ETH_ALEN == s->ssid_len &&
2555 os_memcmp(group_id + ETH_ALEN, s->ssid,
2561 if (pri_dev_type == NULL) {
2562 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2563 pri_dev_type = empty_dev_type;
2565 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2566 " pri_dev_type=%s name='%s' config_methods=0x%x "
2567 "dev_capab=0x%x group_capab=0x%x%s%s",
2569 wps_dev_type_bin2str(pri_dev_type, devtype,
2571 dev_name, supp_config_methods, dev_capab, group_capab,
2572 group ? " group=" : "",
2573 group ? group->ifname : "");
2574 if (os_snprintf_error(sizeof(params), res))
2575 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2576 params[sizeof(params) - 1] = '\0';
2578 if (config_methods & WPS_CONFIG_DISPLAY) {
2579 generated_pin = wps_generate_pin();
2580 wpas_prov_disc_local_display(wpa_s, peer, params,
2582 } else if (config_methods & WPS_CONFIG_KEYPAD)
2583 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2584 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2585 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2586 MACSTR "%s", MAC2STR(peer), params);
2588 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2589 P2P_PROV_DISC_SUCCESS,
2590 config_methods, generated_pin);
2594 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2596 struct wpa_supplicant *wpa_s = ctx;
2597 unsigned int generated_pin = 0;
2600 if (wpa_s->pending_pd_before_join &&
2601 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2602 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2603 wpa_s->pending_pd_before_join = 0;
2604 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2605 "join-existing-group operation");
2606 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2610 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2611 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2614 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2615 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2616 if (os_snprintf_error(sizeof(params), res))
2617 params[sizeof(params) - 1] = '\0';
2621 if (config_methods & WPS_CONFIG_DISPLAY)
2622 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2623 else if (config_methods & WPS_CONFIG_KEYPAD) {
2624 generated_pin = wps_generate_pin();
2625 wpas_prov_disc_local_display(wpa_s, peer, params,
2627 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2628 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2629 MACSTR "%s", MAC2STR(peer), params);
2631 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2632 P2P_PROV_DISC_SUCCESS,
2633 config_methods, generated_pin);
2637 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2638 enum p2p_prov_disc_status status,
2639 u32 adv_id, const u8 *adv_mac,
2640 const char *deferred_session_resp)
2642 struct wpa_supplicant *wpa_s = ctx;
2644 if (wpa_s->p2p_fallback_to_go_neg) {
2645 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2646 "failed - fall back to GO Negotiation");
2647 wpa_msg_global(wpa_s->parent, MSG_INFO,
2648 P2P_EVENT_FALLBACK_TO_GO_NEG
2649 "reason=PD-failed");
2650 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2654 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2655 wpa_s->pending_pd_before_join = 0;
2656 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2657 "join-existing-group operation (no ACK for PD "
2659 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2663 if (adv_id && adv_mac && deferred_session_resp) {
2664 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2665 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2666 " deferred_session_resp='%s'",
2667 MAC2STR(peer), status, adv_id,
2668 deferred_session_resp);
2669 } else if (adv_id && adv_mac) {
2670 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2671 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2672 MAC2STR(peer), status, adv_id);
2674 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2675 " p2p_dev_addr=" MACSTR " status=%d",
2676 MAC2STR(peer), status);
2679 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2684 static int freq_included(struct wpa_supplicant *wpa_s,
2685 const struct p2p_channels *channels,
2688 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2689 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2695 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2697 unsigned int num = P2P_MAX_CHANNELS;
2701 p2p_go_dump_common_freqs(wpa_s);
2702 common_freqs = os_calloc(num, sizeof(int));
2706 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2708 wpa_dbg(wpa_s, MSG_DEBUG,
2709 "P2P: Failed to get group common freqs");
2710 os_free(common_freqs);
2714 os_free(wpa_s->p2p_group_common_freqs);
2715 wpa_s->p2p_group_common_freqs = common_freqs;
2716 wpa_s->p2p_group_common_freqs_num = num;
2717 p2p_go_dump_common_freqs(wpa_s);
2722 * Check if the given frequency is one of the possible operating frequencies
2723 * set after the completion of the GO Negotiation.
2725 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2729 p2p_go_dump_common_freqs(wpa_s);
2731 /* assume no restrictions */
2732 if (!wpa_s->p2p_group_common_freqs_num)
2735 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2736 if (wpa_s->p2p_group_common_freqs[i] == freq)
2743 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2744 struct sta_info *sta, void *ctx)
2746 int *ecsa_support = ctx;
2748 *ecsa_support &= sta->ecsa_supported;
2754 /* Check if all the peers support eCSA */
2755 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2757 int ecsa_support = 1;
2759 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2762 return ecsa_support;
2767 * Pick the best frequency to use from all the currently used frequencies.
2769 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2770 struct wpa_used_freq_data *freqs,
2775 /* find a candidate freq that is supported by P2P */
2776 for (c = 0; c < num; c++)
2777 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2783 /* once we have a candidate, try to find a 'better' one */
2784 for (i = c + 1; i < num; i++) {
2785 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2789 * 1. Infrastructure station interfaces have higher preference.
2790 * 2. P2P Clients have higher preference.
2793 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2798 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2801 return freqs[c].freq;
2805 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2806 const u8 *go_dev_addr, const u8 *ssid,
2807 size_t ssid_len, int *go, u8 *group_bssid,
2808 int *force_freq, int persistent_group,
2809 const struct p2p_channels *channels,
2812 struct wpa_supplicant *wpa_s = ctx;
2814 struct wpa_used_freq_data *freqs;
2815 struct wpa_supplicant *grp;
2818 if (!persistent_group) {
2819 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2820 " to join an active group (SSID: %s)",
2821 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2822 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2823 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2825 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2826 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2827 "authorized invitation");
2831 #ifdef CONFIG_WPS_NFC
2832 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2833 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2834 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2835 wpa_s->p2p_wps_method = WPS_NFC;
2836 wpa_s->pending_join_wps_method = WPS_NFC;
2837 os_memcpy(wpa_s->pending_join_dev_addr,
2838 go_dev_addr, ETH_ALEN);
2839 os_memcpy(wpa_s->pending_join_iface_addr,
2843 #endif /* CONFIG_WPS_NFC */
2846 * Do not accept the invitation automatically; notify user and
2849 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2852 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2854 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2855 "running persistent group");
2857 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2861 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2862 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2863 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2864 "invitation to re-invoke a persistent group");
2865 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2866 } else if (!wpa_s->conf->persistent_reconnect)
2867 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2869 for (s = wpa_s->conf->ssid; s; s = s->next) {
2870 if (s->disabled == 2 &&
2871 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2872 s->ssid_len == ssid_len &&
2873 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2878 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2879 " requested reinvocation of an unknown group",
2881 return P2P_SC_FAIL_UNKNOWN_GROUP;
2884 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2886 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2887 wpa_printf(MSG_DEBUG, "P2P: The only available "
2888 "interface is already in use - reject "
2890 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2892 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2893 } else if (s->mode == WPAS_MODE_P2P_GO) {
2895 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2897 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2898 "interface address for the group");
2899 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2901 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2906 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2909 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2910 sizeof(struct wpa_used_freq_data));
2912 int num_channels = wpa_s->num_multichan_concurrent;
2913 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2914 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2918 /* Get one of the frequencies currently in use */
2919 if (best_freq > 0) {
2920 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2921 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2923 if (wpa_s->num_multichan_concurrent < 2 ||
2924 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2925 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2926 *force_freq = best_freq;
2930 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2931 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2933 /* We are the client */
2934 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2935 "running a GO but we are capable of MCC, "
2936 "figure out the best channel to use");
2938 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2939 /* We are the GO, and *force_freq is not in the
2941 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2942 "in intersection but we are capable of MCC, "
2943 "figure out the best channel to use",
2949 return P2P_SC_SUCCESS;
2953 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2954 const u8 *ssid, size_t ssid_len,
2955 const u8 *go_dev_addr, u8 status,
2958 struct wpa_supplicant *wpa_s = ctx;
2961 for (s = wpa_s->conf->ssid; s; s = s->next) {
2962 if (s->disabled == 2 &&
2963 s->ssid_len == ssid_len &&
2964 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2968 if (status == P2P_SC_SUCCESS) {
2969 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2970 " was accepted; op_freq=%d MHz, SSID=%s",
2971 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2973 int go = s->mode == WPAS_MODE_P2P_GO;
2974 wpas_p2p_group_add_persistent(
2975 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
2976 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2979 wpa_s->user_initiated_pd = 0;
2980 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2981 wpa_s->p2p_wps_method, 0, op_freq,
2987 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2988 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2989 " was rejected (status %u)", MAC2STR(sa), status);
2995 wpa_msg_global(wpa_s, MSG_INFO,
2996 P2P_EVENT_INVITATION_RECEIVED
2997 "sa=" MACSTR " go_dev_addr=" MACSTR
2998 " bssid=" MACSTR " unknown-network",
2999 MAC2STR(sa), MAC2STR(go_dev_addr),
3002 wpa_msg_global(wpa_s, MSG_INFO,
3003 P2P_EVENT_INVITATION_RECEIVED
3004 "sa=" MACSTR " go_dev_addr=" MACSTR
3006 MAC2STR(sa), MAC2STR(go_dev_addr));
3008 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3013 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3014 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3015 "sa=" MACSTR " persistent=%d freq=%d",
3016 MAC2STR(sa), s->id, op_freq);
3018 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3019 "sa=" MACSTR " persistent=%d",
3020 MAC2STR(sa), s->id);
3022 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3027 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3028 struct wpa_ssid *ssid,
3029 const u8 *peer, int inv)
3032 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3037 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3038 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3042 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3043 if (ssid->mode != WPAS_MODE_P2P_GO &&
3044 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3045 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3046 "due to invitation result", ssid->id);
3047 wpas_notify_network_removed(wpa_s, ssid);
3048 wpa_config_remove_network(wpa_s->conf, ssid->id);
3051 return; /* Peer not found in client list */
3054 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3055 "group %d client list%s",
3056 MAC2STR(peer), ssid->id,
3057 inv ? " due to invitation result" : "");
3058 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3059 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3060 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3061 ssid->num_p2p_clients--;
3062 if (p2p_wpa_s->conf->update_config &&
3063 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3064 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3068 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3071 struct wpa_ssid *ssid;
3073 wpa_s = wpa_s->global->p2p_invite_group;
3075 return; /* No known invitation group */
3076 ssid = wpa_s->current_ssid;
3077 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3078 !ssid->p2p_persistent_group)
3079 return; /* Not operating as a GO in persistent group */
3080 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3081 ssid->ssid, ssid->ssid_len);
3082 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3086 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3087 const struct p2p_channels *channels,
3088 const u8 *peer, int neg_freq,
3091 struct wpa_supplicant *wpa_s = ctx;
3092 struct wpa_ssid *ssid;
3096 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3097 "status=%d " MACSTR,
3098 status, MAC2STR(bssid));
3100 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3101 "status=%d ", status);
3103 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3105 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3106 status, MAC2STR(peer));
3107 if (wpa_s->pending_invite_ssid_id == -1) {
3108 struct wpa_supplicant *group_if =
3109 wpa_s->global->p2p_invite_group;
3111 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3112 wpas_remove_persistent_client(wpa_s, peer);
3115 * Invitation to an active group. If this is successful and we
3116 * are the GO, set the client wait to postpone some concurrent
3117 * operations and to allow provisioning and connection to happen
3120 if (status == P2P_SC_SUCCESS &&
3121 group_if && group_if->current_ssid &&
3122 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3123 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3124 #ifdef CONFIG_TESTING_OPTIONS
3125 if (group_if->p2p_go_csa_on_inv) {
3126 wpa_printf(MSG_DEBUG,
3127 "Testing: force P2P GO CSA after invitation");
3128 eloop_cancel_timeout(
3129 wpas_p2p_reconsider_moving_go,
3131 eloop_register_timeout(
3133 wpas_p2p_reconsider_moving_go,
3136 #endif /* CONFIG_TESTING_OPTIONS */
3141 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3142 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3143 "invitation exchange to indicate readiness for "
3147 if (status != P2P_SC_SUCCESS) {
3148 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3149 ssid = wpa_config_get_network(
3150 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3151 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3153 wpas_p2p_remove_pending_group_interface(wpa_s);
3157 ssid = wpa_config_get_network(wpa_s->conf,
3158 wpa_s->pending_invite_ssid_id);
3160 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3161 "data matching with invitation");
3166 * The peer could have missed our ctrl::ack frame for Invitation
3167 * Response and continue retransmitting the frame. To reduce the
3168 * likelihood of the peer not getting successful TX status for the
3169 * Invitation Response frame, wait a short time here before starting
3170 * the persistent group so that we will remain on the current channel to
3171 * acknowledge any possible retransmission from the peer.
3173 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3174 "starting persistent group");
3177 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3178 freq_included(wpa_s, channels, neg_freq))
3180 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3181 freq_included(wpa_s, channels, peer_oper_freq))
3182 freq = peer_oper_freq;
3186 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3187 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3188 wpas_p2p_group_add_persistent(wpa_s, ssid,
3189 ssid->mode == WPAS_MODE_P2P_GO,
3190 wpa_s->p2p_persistent_go_freq,
3192 wpa_s->p2p_go_vht_center_freq2,
3193 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3194 wpa_s->p2p_go_max_oper_chwidth,
3196 ssid->mode == WPAS_MODE_P2P_GO ?
3197 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3202 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3205 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3207 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3211 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3213 reg->channel[reg->channels] = chan;
3218 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3219 struct p2p_channels *chan,
3220 struct p2p_channels *cli_chan)
3224 wpa_s->global->p2p_24ghz_social_channels = 1;
3226 os_memset(cli_chan, 0, sizeof(*cli_chan));
3228 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3231 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3232 chan->reg_class[cla].reg_class = 81;
3233 chan->reg_class[cla].channels = 0;
3234 for (i = 0; i < 11; i++) {
3235 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3236 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3238 if (chan->reg_class[cla].channels)
3241 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3244 /* Operating class 115 - 5 GHz, channels 36-48 */
3245 chan->reg_class[cla].reg_class = 115;
3246 chan->reg_class[cla].channels = 0;
3247 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3248 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3249 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3250 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3251 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3252 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3253 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3254 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3255 if (chan->reg_class[cla].channels)
3258 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3261 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3262 chan->reg_class[cla].reg_class = 124;
3263 chan->reg_class[cla].channels = 0;
3264 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3265 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3266 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3267 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3268 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3269 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3270 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3271 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3272 if (chan->reg_class[cla].channels)
3275 chan->reg_classes = cla;
3280 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3282 enum hostapd_hw_mode mode)
3286 for (i = 0; i < num_modes; i++) {
3287 if (modes[i].mode == mode)
3296 NOT_ALLOWED, NO_IR, ALLOWED
3299 static int has_channel(struct wpa_global *global,
3300 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3305 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3307 if (wpas_p2p_disallowed_freq(global, freq))
3310 for (i = 0; i < mode->num_channels; i++) {
3311 if (mode->channels[i].chan == chan) {
3313 *flags = mode->channels[i].flag;
3314 if (mode->channels[i].flag &
3315 (HOSTAPD_CHAN_DISABLED |
3316 HOSTAPD_CHAN_RADAR))
3318 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3328 struct p2p_oper_class_map {
3329 enum hostapd_hw_mode mode;
3334 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160, BW160, BW80P80 } bw;
3337 static const struct p2p_oper_class_map op_class[] = {
3338 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3339 #if 0 /* Do not enable HT40 on 2 GHz for now */
3340 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3341 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3343 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3344 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3345 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
3346 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3347 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3348 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3349 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3352 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3353 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3354 * 80 MHz, but currently use the following definition for simplicity
3355 * (these center frequencies are not actual channels, which makes
3356 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3357 * removing invalid channels.
3359 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3360 { HOSTAPD_MODE_IEEE80211A, 130, 36, 161, 4, BW80P80 },
3361 { HOSTAPD_MODE_IEEE80211A, 129, 50, 114, 16, BW160 },
3362 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3363 { -1, 0, 0, 0, 0, BW20 }
3367 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3368 struct hostapd_hw_modes *mode,
3371 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3374 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3377 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3379 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3380 * so the center channel is 6 channels away from the start/end.
3382 if (channel >= center_channels[i] - 6 &&
3383 channel <= center_channels[i] + 6)
3384 return center_channels[i];
3390 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3391 struct hostapd_hw_modes *mode,
3396 enum chan_allowed res, ret = ALLOWED;
3398 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3401 if (center_chan >= 58 && center_chan <= 138)
3402 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3404 /* check all the channels are available */
3405 for (i = 0; i < 4; i++) {
3406 int adj_chan = center_chan - 6 + i * 4;
3408 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3409 if (res == NOT_ALLOWED)
3414 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3416 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3418 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3420 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3428 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3429 struct hostapd_hw_modes *mode,
3432 u8 center_channels[] = { 50, 114 };
3435 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3438 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3440 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3441 * so the center channel is 14 channels away from the start/end.
3443 if (channel >= center_channels[i] - 14 &&
3444 channel <= center_channels[i] + 14)
3445 return center_channels[i];
3451 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3452 struct hostapd_hw_modes *mode,
3457 enum chan_allowed res, ret = ALLOWED;
3459 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3462 /* VHT 160 MHz uses DFS channels in most countries. */
3464 /* Check all the channels are available */
3465 for (i = 0; i < 8; i++) {
3466 int adj_chan = center_chan - 14 + i * 4;
3468 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3469 if (res == NOT_ALLOWED)
3475 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3477 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3479 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3481 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3483 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3485 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3487 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3489 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3497 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3498 struct hostapd_hw_modes *mode,
3502 enum chan_allowed res, res2;
3504 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3505 if (bw == BW40MINUS) {
3506 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3508 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3509 } else if (bw == BW40PLUS) {
3510 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3512 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3513 } else if (bw == BW80) {
3514 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3515 } else if (bw == BW160) {
3516 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3519 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3521 if (res == NO_IR || res2 == NO_IR)
3527 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3528 struct p2p_channels *chan,
3529 struct p2p_channels *cli_chan)
3531 struct hostapd_hw_modes *mode;
3532 int cla, op, cli_cla;
3534 if (wpa_s->hw.modes == NULL) {
3535 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3536 "of all supported channels; assume dualband "
3538 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3543 for (op = 0; op_class[op].op_class; op++) {
3544 const struct p2p_oper_class_map *o = &op_class[op];
3546 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3548 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3551 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3552 wpa_s->global->p2p_24ghz_social_channels = 1;
3553 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3554 enum chan_allowed res;
3555 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3556 if (res == ALLOWED) {
3558 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3560 reg = &chan->reg_class[cla];
3562 reg->reg_class = o->op_class;
3564 reg->channel[reg->channels] = ch;
3566 } else if (res == NO_IR &&
3567 wpa_s->conf->p2p_add_cli_chan) {
3568 if (cli_reg == NULL) {
3569 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3571 cli_reg = &cli_chan->reg_class[cli_cla];
3573 cli_reg->reg_class = o->op_class;
3575 cli_reg->channel[cli_reg->channels] = ch;
3576 cli_reg->channels++;
3580 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3581 reg->channel, reg->channels);
3584 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3585 cli_reg->channel, cli_reg->channels);
3589 chan->reg_classes = cla;
3590 cli_chan->reg_classes = cli_cla;
3596 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3597 struct hostapd_hw_modes *mode, u8 channel)
3600 enum chan_allowed ret;
3602 for (op = 0; op_class[op].op_class; op++) {
3603 const struct p2p_oper_class_map *o = &op_class[op];
3606 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3607 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3608 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3611 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3613 return (o->bw == BW40MINUS) ? -1 : 1;
3620 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3621 struct hostapd_hw_modes *mode, u8 channel)
3623 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3626 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3630 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3631 struct hostapd_hw_modes *mode, u8 channel)
3633 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3635 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3639 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3642 struct wpa_supplicant *wpa_s = ctx;
3644 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3645 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3651 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3655 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3656 const u8 *ssid, size_t ssid_len)
3658 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3659 struct wpa_ssid *s = wpa_s->current_ssid;
3662 if (s->mode != WPAS_MODE_P2P_GO &&
3663 s->mode != WPAS_MODE_AP &&
3664 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3666 if (s->ssid_len != ssid_len ||
3667 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3677 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3678 const u8 *peer_dev_addr)
3680 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3681 struct wpa_ssid *ssid = wpa_s->current_ssid;
3682 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3684 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3692 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3694 struct wpa_supplicant *wpa_s = ctx;
3696 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3700 static int wpas_is_concurrent_session_active(void *ctx)
3702 struct wpa_supplicant *wpa_s = ctx;
3703 struct wpa_supplicant *ifs;
3705 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3708 if (ifs->wpa_state > WPA_ASSOCIATED)
3715 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3717 struct wpa_supplicant *wpa_s = ctx;
3718 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3722 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3723 const char *conf_p2p_dev)
3725 struct wpa_interface iface;
3726 struct wpa_supplicant *p2pdev_wpa_s;
3728 char force_name[100];
3731 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3733 if (os_snprintf_error(sizeof(ifname), ret))
3735 force_name[0] = '\0';
3736 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3737 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3738 force_name, wpa_s->pending_interface_addr, NULL);
3740 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3743 os_strlcpy(wpa_s->pending_interface_name, ifname,
3744 sizeof(wpa_s->pending_interface_name));
3746 os_memset(&iface, 0, sizeof(iface));
3748 iface.ifname = wpa_s->pending_interface_name;
3749 iface.driver = wpa_s->driver->name;
3750 iface.driver_param = wpa_s->conf->driver_param;
3753 * If a P2P Device configuration file was given, use it as the interface
3754 * configuration file (instead of using parent's configuration file.
3757 iface.confname = conf_p2p_dev;
3758 iface.ctrl_interface = NULL;
3760 iface.confname = wpa_s->confname;
3761 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3764 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3765 if (!p2pdev_wpa_s) {
3766 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3770 wpa_s->pending_interface_name[0] = '\0';
3775 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3776 const u8 *noa, size_t noa_len)
3778 struct wpa_supplicant *wpa_s, *intf = ctx;
3781 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3782 if (wpa_s->waiting_presence_resp)
3786 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3789 wpa_s->waiting_presence_resp = 0;
3791 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3792 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3793 " status=%u noa=%s", MAC2STR(src), status, hex);
3797 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3798 size_t ssid_len, u8 *go_dev_addr,
3799 u8 *ret_ssid, size_t *ret_ssid_len,
3800 u8 *intended_iface_addr)
3802 struct wpa_supplicant *wpa_s = ctx;
3805 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3807 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3808 *ret_ssid_len = s->ssid_len;
3809 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3811 if (s->mode != WPAS_MODE_P2P_GO) {
3812 os_memset(intended_iface_addr, 0, ETH_ALEN);
3813 } else if (wpas_p2p_create_iface(wpa_s)) {
3814 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3817 os_memcpy(intended_iface_addr,
3818 wpa_s->pending_interface_addr, ETH_ALEN);
3820 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3830 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3831 u8 *ssid, size_t *ssid_len, int *group_iface,
3834 struct wpa_supplicant *wpa_s = ctx;
3835 struct wpa_supplicant *go;
3839 * group_iface will be set to 1 only if a dedicated interface for P2P
3840 * role is required. First, we try to reuse an active GO. However,
3841 * if it is not present, we will try to reactivate an existing
3842 * persistent group and set group_iface to 1, so the caller will know
3843 * that the pending interface should be used.
3850 go = wpas_p2p_get_go_group(wpa_s);
3852 s = wpas_p2p_get_persistent_go(wpa_s);
3853 *group_iface = wpas_p2p_create_iface(wpa_s);
3855 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3859 s = go->current_ssid;
3860 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3862 *freq = go->assoc_freq;
3865 os_memcpy(ssid, s->ssid, s->ssid_len);
3866 *ssid_len = s->ssid_len;
3872 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3873 const u8 *ssid, size_t ssid_len)
3875 struct wpa_supplicant *wpa_s = ctx;
3877 int save_config = 0;
3880 /* Start with our first choice of Persistent Groups */
3881 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3882 if (go && ssid && ssid_len &&
3883 s->ssid_len == ssid_len &&
3884 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3885 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3888 /* Remove stale persistent group */
3889 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3890 wpa_config_remove_network(wpa_s->conf, s->id);
3895 for (i = 0; i < s->num_p2p_clients; i++) {
3896 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3897 peer, ETH_ALEN) != 0)
3900 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3901 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3902 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3905 s->num_p2p_clients--;
3910 p2p_config_write(wpa_s);
3912 /* Return TRUE if valid SSID remains */
3917 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3918 const u8 *feat_cap, size_t feat_cap_len)
3920 static const char pref[] = " feature_cap=";
3926 * We expect a feature capability to contain at least one byte to be
3927 * reported. The string buffer provided by the caller function is
3928 * expected to be big enough to contain all bytes of the attribute for
3929 * known specifications. This function truncates the reported bytes if
3930 * the feature capability data exceeds the string buffer size.
3932 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3935 os_memcpy(buf, pref, sizeof(pref));
3936 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3937 buf_len - sizeof(pref) + 1,
3938 feat_cap, feat_cap_len);
3940 if (ret != (2 * (int) feat_cap_len))
3941 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3945 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3946 const u8 *adv_mac, const u8 *ses_mac,
3947 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3948 u8 conncap, int passwd_id,
3949 const u8 *persist_ssid,
3950 size_t persist_ssid_size, int response_done,
3951 int prov_start, const char *session_info,
3952 const u8 *feat_cap, size_t feat_cap_len,
3954 const u8 *group_ssid, size_t group_ssid_len)
3956 struct wpa_supplicant *wpa_s = ctx;
3958 struct wpa_ssid *persistent_go, *stale, *s = NULL;
3959 int save_config = 0;
3960 struct wpa_supplicant *go_wpa_s;
3961 char feat_cap_str[256];
3966 os_memset(mac, 0, ETH_ALEN);
3974 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3975 feat_cap, feat_cap_len);
3978 if (session_info == NULL) {
3979 wpa_msg_global(wpa_s, MSG_INFO,
3980 P2P_EVENT_P2PS_PROVISION_START MACSTR
3981 " adv_id=%x conncap=%x"
3983 " session=%x mac=" MACSTR
3984 " dev_passwd_id=%d%s",
3985 MAC2STR(dev), adv_id, conncap,
3987 ses_id, MAC2STR(ses_mac),
3988 passwd_id, feat_cap_str);
3990 wpa_msg_global(wpa_s, MSG_INFO,
3991 P2P_EVENT_P2PS_PROVISION_START MACSTR
3992 " adv_id=%x conncap=%x"
3994 " session=%x mac=" MACSTR
3995 " dev_passwd_id=%d info='%s'%s",
3996 MAC2STR(dev), adv_id, conncap,
3998 ses_id, MAC2STR(ses_mac),
3999 passwd_id, session_info, feat_cap_str);
4004 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4005 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4007 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4008 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4009 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4011 if (persistent_go && !persistent_go->num_p2p_clients) {
4012 /* remove empty persistent GO */
4013 wpa_config_remove_network(wpa_s->conf,
4017 wpa_msg_global(wpa_s, MSG_INFO,
4018 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4020 " adv_id=%x adv_mac=" MACSTR
4021 " session=%x mac=" MACSTR "%s",
4022 MAC2STR(dev), status,
4023 adv_id, MAC2STR(adv_mac),
4024 ses_id, MAC2STR(ses_mac), feat_cap_str);
4028 /* Clean up stale persistent groups with this device */
4029 if (persist_ssid && persist_ssid_size)
4030 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4033 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4034 is_zero_ether_addr(grp_mac)) {
4035 wpa_dbg(wpa_s, MSG_ERROR,
4036 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4041 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4045 if (s && s->ssid_len == stale->ssid_len &&
4046 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4047 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4050 /* Remove stale persistent group */
4051 if (stale->mode != WPAS_MODE_P2P_GO ||
4052 stale->num_p2p_clients <= 1) {
4053 wpa_config_remove_network(wpa_s->conf, stale->id);
4057 for (i = 0; i < stale->num_p2p_clients; i++) {
4058 if (os_memcmp(stale->p2p_client_list +
4060 dev, ETH_ALEN) == 0) {
4061 os_memmove(stale->p2p_client_list +
4063 stale->p2p_client_list +
4065 (stale->num_p2p_clients -
4070 stale->num_p2p_clients--;
4076 p2p_config_write(wpa_s);
4079 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4080 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4082 if (persistent_go && s != persistent_go &&
4083 !persistent_go->num_p2p_clients) {
4084 /* remove empty persistent GO */
4085 wpa_config_remove_network(wpa_s->conf,
4090 wpa_msg_global(wpa_s, MSG_INFO,
4091 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4093 " adv_id=%x adv_mac=" MACSTR
4094 " session=%x mac=" MACSTR
4096 MAC2STR(dev), status,
4097 adv_id, MAC2STR(adv_mac),
4098 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4102 if (conncap == P2PS_SETUP_GROUP_OWNER) {
4104 * We need to copy the interface name. Simply saving a
4105 * pointer isn't enough, since if we use pending_interface_name
4106 * it will be overwritten when the group is added.
4108 char go_ifname[100];
4110 go_ifname[0] = '\0';
4112 wpa_s->global->pending_p2ps_group = 1;
4113 wpa_s->global->pending_p2ps_group_freq = freq;
4115 if (!wpas_p2p_create_iface(wpa_s))
4116 os_memcpy(go_ifname, wpa_s->ifname,
4118 else if (wpa_s->pending_interface_name[0])
4119 os_memcpy(go_ifname,
4120 wpa_s->pending_interface_name,
4123 if (!go_ifname[0]) {
4124 wpas_p2ps_prov_complete(
4125 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4126 dev, adv_mac, ses_mac,
4127 grp_mac, adv_id, ses_id, 0, 0,
4128 NULL, 0, 0, 0, NULL, NULL, 0, 0,
4133 /* If PD Resp complete, start up the GO */
4134 if (response_done && persistent_go) {
4135 wpas_p2p_group_add_persistent(
4136 wpa_s, persistent_go,
4137 0, 0, freq, 0, 0, 0, 0, NULL,
4138 persistent_go->mode ==
4140 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4142 } else if (response_done) {
4143 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4146 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4147 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4149 wpa_s->p2ps_method_config_any = 1;
4151 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4152 os_memcpy(go_ifname, go_wpa_s->ifname,
4155 if (is_zero_ether_addr(grp_mac)) {
4156 wpa_dbg(go_wpa_s, MSG_DEBUG,
4157 "P2P: Setting PIN-1 for ANY");
4158 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4159 "12345670", NULL, 0,
4162 wpa_dbg(go_wpa_s, MSG_DEBUG,
4163 "P2P: Setting PIN-1 for " MACSTR,
4165 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4166 "12345670", NULL, 0,
4170 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4171 wpa_s->p2ps_method_config_any = 1;
4174 wpa_msg_global(wpa_s, MSG_INFO,
4175 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4176 " status=%d conncap=%x"
4177 " adv_id=%x adv_mac=" MACSTR
4178 " session=%x mac=" MACSTR
4179 " dev_passwd_id=%d go=%s%s",
4180 MAC2STR(dev), status, conncap,
4181 adv_id, MAC2STR(adv_mac),
4182 ses_id, MAC2STR(ses_mac),
4183 passwd_id, go_ifname, feat_cap_str);
4187 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4188 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4190 if (persistent_go && !persistent_go->num_p2p_clients) {
4191 /* remove empty persistent GO */
4192 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4195 if (conncap == P2PS_SETUP_CLIENT) {
4196 char ssid_hex[32 * 2 + 1];
4199 wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4200 group_ssid, group_ssid_len);
4203 wpa_msg_global(wpa_s, MSG_INFO,
4204 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4205 " status=%d conncap=%x"
4206 " adv_id=%x adv_mac=" MACSTR
4207 " session=%x mac=" MACSTR
4208 " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4209 MAC2STR(dev), status, conncap,
4210 adv_id, MAC2STR(adv_mac),
4211 ses_id, MAC2STR(ses_mac),
4212 passwd_id, MAC2STR(grp_mac), feat_cap_str,
4213 group_ssid ? " group_ssid=" : "", ssid_hex);
4215 wpa_msg_global(wpa_s, MSG_INFO,
4216 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4217 " status=%d conncap=%x"
4218 " adv_id=%x adv_mac=" MACSTR
4219 " session=%x mac=" MACSTR
4220 " dev_passwd_id=%d%s",
4221 MAC2STR(dev), status, conncap,
4222 adv_id, MAC2STR(adv_mac),
4223 ses_id, MAC2STR(ses_mac),
4224 passwd_id, feat_cap_str);
4229 static int _wpas_p2p_in_progress(void *ctx)
4231 struct wpa_supplicant *wpa_s = ctx;
4232 return wpas_p2p_in_progress(wpa_s);
4236 static int wpas_prov_disc_resp_cb(void *ctx)
4238 struct wpa_supplicant *wpa_s = ctx;
4239 struct wpa_ssid *persistent_go;
4242 if (!wpa_s->global->pending_p2ps_group)
4245 freq = wpa_s->global->pending_p2ps_group_freq;
4246 wpa_s->global->pending_p2ps_group_freq = 0;
4247 wpa_s->global->pending_p2ps_group = 0;
4249 if (wpas_p2p_get_go_group(wpa_s))
4251 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4253 if (persistent_go) {
4254 wpas_p2p_group_add_persistent(
4255 wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4256 persistent_go->mode == WPAS_MODE_P2P_GO ?
4257 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4259 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4266 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4268 unsigned int *freq_list)
4270 struct wpa_supplicant *wpa_s = ctx;
4272 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4273 WPA_IF_P2P_CLIENT, len, freq_list);
4278 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4279 * @global: Pointer to global data from wpa_supplicant_init()
4280 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4281 * Returns: 0 on success, -1 on failure
4283 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4285 struct p2p_config p2p;
4288 if (wpa_s->conf->p2p_disabled)
4291 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4297 os_memset(&p2p, 0, sizeof(p2p));
4299 p2p.debug_print = wpas_p2p_debug_print;
4300 p2p.p2p_scan = wpas_p2p_scan;
4301 p2p.send_action = wpas_send_action;
4302 p2p.send_action_done = wpas_send_action_done;
4303 p2p.go_neg_completed = wpas_go_neg_completed;
4304 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4305 p2p.dev_found = wpas_dev_found;
4306 p2p.dev_lost = wpas_dev_lost;
4307 p2p.find_stopped = wpas_find_stopped;
4308 p2p.start_listen = wpas_start_listen;
4309 p2p.stop_listen = wpas_stop_listen;
4310 p2p.send_probe_resp = wpas_send_probe_resp;
4311 p2p.sd_request = wpas_sd_request;
4312 p2p.sd_response = wpas_sd_response;
4313 p2p.prov_disc_req = wpas_prov_disc_req;
4314 p2p.prov_disc_resp = wpas_prov_disc_resp;
4315 p2p.prov_disc_fail = wpas_prov_disc_fail;
4316 p2p.invitation_process = wpas_invitation_process;
4317 p2p.invitation_received = wpas_invitation_received;
4318 p2p.invitation_result = wpas_invitation_result;
4319 p2p.get_noa = wpas_get_noa;
4320 p2p.go_connected = wpas_go_connected;
4321 p2p.presence_resp = wpas_presence_resp;
4322 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4323 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4324 p2p.get_persistent_group = wpas_get_persistent_group;
4325 p2p.get_go_info = wpas_get_go_info;
4326 p2p.remove_stale_groups = wpas_remove_stale_groups;
4327 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4328 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4329 p2p.p2ps_group_capability = p2ps_group_capability;
4330 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4332 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4333 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4334 p2p.dev_name = wpa_s->conf->device_name;
4335 p2p.manufacturer = wpa_s->conf->manufacturer;
4336 p2p.model_name = wpa_s->conf->model_name;
4337 p2p.model_number = wpa_s->conf->model_number;
4338 p2p.serial_number = wpa_s->conf->serial_number;
4340 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4341 p2p.config_methods = wpa_s->wps->config_methods;
4344 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4345 wpa_printf(MSG_ERROR,
4346 "P2P: Failed to configure supported channel list");
4350 if (wpa_s->conf->p2p_listen_reg_class &&
4351 wpa_s->conf->p2p_listen_channel) {
4352 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4353 p2p.channel = wpa_s->conf->p2p_listen_channel;
4354 p2p.channel_forced = 1;
4357 * Pick one of the social channels randomly as the listen
4360 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4361 &p2p.channel) != 0) {
4362 wpa_printf(MSG_INFO,
4363 "P2P: No social channels supported by the driver - do not enable P2P");
4366 p2p.channel_forced = 0;
4368 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4369 p2p.reg_class, p2p.channel);
4371 if (wpa_s->conf->p2p_oper_reg_class &&
4372 wpa_s->conf->p2p_oper_channel) {
4373 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4374 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4375 p2p.cfg_op_channel = 1;
4376 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4377 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4381 * Use random operation channel from 2.4 GHz band social
4382 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4383 * other preference is indicated.
4385 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4386 &p2p.op_channel) != 0) {
4387 wpa_printf(MSG_ERROR,
4388 "P2P: Failed to select random social channel as operation channel");
4391 p2p.cfg_op_channel = 0;
4392 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4393 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4396 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4397 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4398 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4401 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4402 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4403 p2p.country[2] = 0x04;
4405 os_memcpy(p2p.country, "XX\x04", 3);
4407 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4410 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4411 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4412 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4414 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4415 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4417 p2p.max_peers = 100;
4419 if (wpa_s->conf->p2p_ssid_postfix) {
4420 p2p.ssid_postfix_len =
4421 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4422 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4423 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4424 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4425 p2p.ssid_postfix_len);
4428 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4430 p2p.max_listen = wpa_s->max_remain_on_chan;
4432 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4433 wpa_s->conf->p2p_passphrase_len <= 63)
4434 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4436 p2p.passphrase_len = 8;
4438 global->p2p = p2p_init(&p2p);
4439 if (global->p2p == NULL)
4441 global->p2p_init_wpa_s = wpa_s;
4443 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4444 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4446 p2p_add_wps_vendor_extension(
4447 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4450 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4457 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4458 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4460 * This function deinitialize per-interface P2P data.
4462 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4464 if (wpa_s->driver && wpa_s->drv_priv)
4465 wpa_drv_probe_req_report(wpa_s, 0);
4467 if (wpa_s->go_params) {
4468 /* Clear any stored provisioning info */
4469 p2p_clear_provisioning_info(
4471 wpa_s->go_params->peer_device_addr);
4474 os_free(wpa_s->go_params);
4475 wpa_s->go_params = NULL;
4476 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4477 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4478 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4479 wpa_s->p2p_long_listen = 0;
4480 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4481 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4482 wpas_p2p_remove_pending_group_interface(wpa_s);
4483 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4484 wpas_p2p_listen_work_done(wpa_s);
4485 if (wpa_s->p2p_send_action_work) {
4486 os_free(wpa_s->p2p_send_action_work->ctx);
4487 radio_work_done(wpa_s->p2p_send_action_work);
4488 wpa_s->p2p_send_action_work = NULL;
4490 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4492 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4493 wpa_s->p2p_oob_dev_pw = NULL;
4495 os_free(wpa_s->p2p_group_common_freqs);
4496 wpa_s->p2p_group_common_freqs = NULL;
4497 wpa_s->p2p_group_common_freqs_num = 0;
4499 /* TODO: remove group interface from the driver if this wpa_s instance
4500 * is on top of a P2P group interface */
4505 * wpas_p2p_deinit_global - Deinitialize global P2P module
4506 * @global: Pointer to global data from wpa_supplicant_init()
4508 * This function deinitializes the global (per device) P2P module.
4510 static void wpas_p2p_deinit_global(struct wpa_global *global)
4512 struct wpa_supplicant *wpa_s, *tmp;
4514 wpa_s = global->ifaces;
4516 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4518 /* Remove remaining P2P group interfaces */
4519 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4520 wpa_s = wpa_s->next;
4522 tmp = global->ifaces;
4525 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4530 /* Disconnect from the P2P group and deinit the interface */
4531 wpas_p2p_disconnect(tmp);
4535 * Deinit GO data on any possibly remaining interface (if main
4536 * interface is used as GO).
4538 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4539 if (wpa_s->ap_iface)
4540 wpas_p2p_group_deinit(wpa_s);
4543 p2p_deinit(global->p2p);
4545 global->p2p_init_wpa_s = NULL;
4549 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4551 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4552 wpa_s->conf->p2p_no_group_iface)
4553 return 0; /* separate interface disabled per configuration */
4554 if (wpa_s->drv_flags &
4555 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4556 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4557 return 1; /* P2P group requires a new interface in every case
4559 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4560 return 0; /* driver does not support concurrent operations */
4561 if (wpa_s->global->ifaces->next)
4562 return 1; /* more that one interface already in use */
4563 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4564 return 1; /* this interface is already in use */
4569 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4570 const u8 *peer_addr,
4571 enum p2p_wps_method wps_method,
4572 int go_intent, const u8 *own_interface_addr,
4573 unsigned int force_freq, int persistent_group,
4574 struct wpa_ssid *ssid, unsigned int pref_freq)
4576 if (persistent_group && wpa_s->conf->persistent_reconnect)
4577 persistent_group = 2;
4580 * Increase GO config timeout if HT40 is used since it takes some time
4581 * to scan channels for coex purposes before the BSS can be started.
4583 p2p_set_config_timeout(wpa_s->global->p2p,
4584 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4586 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4587 go_intent, own_interface_addr, force_freq,
4588 persistent_group, ssid ? ssid->ssid : NULL,
4589 ssid ? ssid->ssid_len : 0,
4590 wpa_s->p2p_pd_before_go_neg, pref_freq,
4591 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4596 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4597 const u8 *peer_addr,
4598 enum p2p_wps_method wps_method,
4599 int go_intent, const u8 *own_interface_addr,
4600 unsigned int force_freq, int persistent_group,
4601 struct wpa_ssid *ssid, unsigned int pref_freq)
4603 if (persistent_group && wpa_s->conf->persistent_reconnect)
4604 persistent_group = 2;
4606 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4607 go_intent, own_interface_addr, force_freq,
4608 persistent_group, ssid ? ssid->ssid : NULL,
4609 ssid ? ssid->ssid_len : 0, pref_freq,
4610 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4615 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4617 wpa_s->p2p_join_scan_count++;
4618 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4619 wpa_s->p2p_join_scan_count);
4620 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4621 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4622 " for join operationg - stop join attempt",
4623 MAC2STR(wpa_s->pending_join_iface_addr));
4624 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4625 if (wpa_s->p2p_auto_pd) {
4626 wpa_s->p2p_auto_pd = 0;
4627 wpa_msg_global(wpa_s, MSG_INFO,
4628 P2P_EVENT_PROV_DISC_FAILURE
4629 " p2p_dev_addr=" MACSTR " status=N/A",
4630 MAC2STR(wpa_s->pending_join_dev_addr));
4633 wpa_msg_global(wpa_s->parent, MSG_INFO,
4634 P2P_EVENT_GROUP_FORMATION_FAILURE);
4635 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4640 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4643 unsigned int num, i;
4644 struct wpa_used_freq_data *freqs;
4646 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4647 /* Multiple channels are supported and not all are in use */
4651 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4652 sizeof(struct wpa_used_freq_data));
4656 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4657 wpa_s->num_multichan_concurrent);
4659 for (i = 0; i < num; i++) {
4660 if (freqs[i].freq == freq) {
4661 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4668 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4677 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4678 const u8 *peer_dev_addr)
4680 struct wpa_bss *bss;
4683 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4686 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4687 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4692 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4694 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4695 "%ld.%06ld (%supdated in last scan)",
4696 bss->last_update.sec, bss->last_update.usec,
4697 updated ? "": "not ");
4703 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4704 struct wpa_scan_results *scan_res)
4706 struct wpa_bss *bss = NULL;
4708 u8 iface_addr[ETH_ALEN];
4710 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4712 if (wpa_s->global->p2p_disabled)
4715 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4716 scan_res ? (int) scan_res->num : -1,
4717 wpa_s->p2p_auto_join ? "auto_" : "");
4720 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4722 if (wpa_s->p2p_auto_pd) {
4723 int join = wpas_p2p_peer_go(wpa_s,
4724 wpa_s->pending_join_dev_addr);
4726 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4727 wpa_s->auto_pd_scan_retry++;
4728 bss = wpa_bss_get_bssid_latest(
4729 wpa_s, wpa_s->pending_join_dev_addr);
4732 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4733 "the peer " MACSTR " at %d MHz",
4734 wpa_s->auto_pd_scan_retry,
4736 pending_join_dev_addr),
4738 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4746 wpa_s->p2p_auto_pd = 0;
4747 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4748 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4749 MAC2STR(wpa_s->pending_join_dev_addr), join);
4750 if (p2p_prov_disc_req(wpa_s->global->p2p,
4751 wpa_s->pending_join_dev_addr, NULL,
4752 wpa_s->pending_pd_config_methods, join,
4753 0, wpa_s->user_initiated_pd) < 0) {
4754 wpa_s->p2p_auto_pd = 0;
4755 wpa_msg_global(wpa_s, MSG_INFO,
4756 P2P_EVENT_PROV_DISC_FAILURE
4757 " p2p_dev_addr=" MACSTR " status=N/A",
4758 MAC2STR(wpa_s->pending_join_dev_addr));
4763 if (wpa_s->p2p_auto_join) {
4764 int join = wpas_p2p_peer_go(wpa_s,
4765 wpa_s->pending_join_dev_addr);
4767 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4768 "running a GO -> use GO Negotiation");
4769 wpa_msg_global(wpa_s->parent, MSG_INFO,
4770 P2P_EVENT_FALLBACK_TO_GO_NEG
4771 "reason=peer-not-running-GO");
4772 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4773 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4774 wpa_s->p2p_persistent_group, 0, 0, 0,
4775 wpa_s->p2p_go_intent,
4776 wpa_s->p2p_connect_freq,
4777 wpa_s->p2p_go_vht_center_freq2,
4778 wpa_s->p2p_persistent_id,
4779 wpa_s->p2p_pd_before_go_neg,
4782 wpa_s->p2p_go_max_oper_chwidth,
4787 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4788 "try to join the group", join ? "" :
4791 wpa_msg_global(wpa_s->parent, MSG_INFO,
4792 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4793 wpa_s->p2p_fallback_to_go_neg = 1;
4797 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4798 wpa_s->pending_join_iface_addr);
4800 p2p_get_interface_addr(wpa_s->global->p2p,
4801 wpa_s->pending_join_dev_addr,
4803 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4804 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4805 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4806 "address for join from " MACSTR " to " MACSTR
4807 " based on newly discovered P2P peer entry",
4808 MAC2STR(wpa_s->pending_join_iface_addr),
4809 MAC2STR(iface_addr));
4810 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4813 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4814 wpa_s->pending_join_iface_addr);
4817 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4818 "from P2P peer table: %d MHz", freq);
4820 if (wpa_s->p2p_join_ssid_len) {
4821 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4822 MACSTR " and SSID %s",
4823 MAC2STR(wpa_s->pending_join_iface_addr),
4824 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4825 wpa_s->p2p_join_ssid_len));
4826 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4827 wpa_s->p2p_join_ssid,
4828 wpa_s->p2p_join_ssid_len);
4830 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4831 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4832 bss = wpa_bss_get_bssid_latest(wpa_s,
4833 wpa_s->pending_join_iface_addr);
4836 u8 dev_addr[ETH_ALEN];
4839 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4840 "from BSS table: %d MHz (SSID %s)", freq,
4841 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4842 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4844 os_memcmp(wpa_s->pending_join_dev_addr,
4845 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4846 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4848 wpa_printf(MSG_DEBUG,
4849 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4851 MAC2STR(wpa_s->pending_join_dev_addr));
4852 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4859 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4860 wpa_msg_global(wpa_s->parent, MSG_INFO,
4861 P2P_EVENT_GROUP_FORMATION_FAILURE
4862 "reason=FREQ_CONFLICT");
4863 wpas_notify_p2p_group_formation_failure(
4864 wpa_s, "FREQ_CONFLICT");
4868 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4869 "prior to joining an existing group (GO " MACSTR
4871 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4872 wpa_s->pending_pd_before_join = 1;
4874 switch (wpa_s->pending_join_wps_method) {
4875 case WPS_PIN_DISPLAY:
4876 method = WPS_CONFIG_KEYPAD;
4878 case WPS_PIN_KEYPAD:
4879 method = WPS_CONFIG_DISPLAY;
4882 method = WPS_CONFIG_PUSHBUTTON;
4885 method = WPS_CONFIG_P2PS;
4892 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4893 wpa_s->pending_join_dev_addr) ==
4896 * We have already performed provision discovery for
4897 * joining the group. Proceed directly to join
4898 * operation without duplicated provision discovery. */
4899 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4900 "with " MACSTR " already done - proceed to "
4902 MAC2STR(wpa_s->pending_join_dev_addr));
4903 wpa_s->pending_pd_before_join = 0;
4907 if (p2p_prov_disc_req(wpa_s->global->p2p,
4908 wpa_s->pending_join_dev_addr,
4910 freq, wpa_s->user_initiated_pd) < 0) {
4911 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4912 "Discovery Request before joining an "
4914 wpa_s->pending_pd_before_join = 0;
4920 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4921 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4922 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4923 wpas_p2p_check_join_scan_limit(wpa_s);
4927 /* Start join operation immediately */
4928 wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4929 wpa_s->p2p_join_ssid_len);
4933 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4934 const u8 *ssid, size_t ssid_len)
4937 struct wpa_driver_scan_params params;
4938 struct wpabuf *wps_ie, *ies;
4940 int freqs[2] = { 0, 0 };
4942 os_memset(¶ms, 0, sizeof(params));
4944 /* P2P Wildcard SSID */
4945 params.num_ssids = 1;
4946 if (ssid && ssid_len) {
4947 params.ssids[0].ssid = ssid;
4948 params.ssids[0].ssid_len = ssid_len;
4949 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4950 wpa_s->p2p_join_ssid_len = ssid_len;
4952 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4953 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4954 wpa_s->p2p_join_ssid_len = 0;
4957 wpa_s->wps->dev.p2p = 1;
4958 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4959 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4961 if (wps_ie == NULL) {
4962 wpas_p2p_scan_res_join(wpa_s, NULL);
4966 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4967 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4969 wpabuf_free(wps_ie);
4970 wpas_p2p_scan_res_join(wpa_s, NULL);
4973 wpabuf_put_buf(ies, wps_ie);
4974 wpabuf_free(wps_ie);
4976 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4978 params.p2p_probe = 1;
4979 params.extra_ies = wpabuf_head(ies);
4980 params.extra_ies_len = wpabuf_len(ies);
4985 * If freq is not provided, check the operating freq of the GO
4986 * and use a single channel scan on if possible.
4988 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4989 wpa_s->pending_join_iface_addr);
4995 params.freqs = freqs;
4999 * Run a scan to update BSS table and start Provision Discovery once
5000 * the new scan results become available.
5002 ret = wpa_drv_scan(wpa_s, ¶ms);
5004 os_get_reltime(&wpa_s->scan_trigger_time);
5005 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5006 wpa_s->own_scan_requested = 1;
5012 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5014 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5015 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5016 wpas_p2p_check_join_scan_limit(wpa_s);
5021 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5023 struct wpa_supplicant *wpa_s = eloop_ctx;
5024 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5028 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5029 const u8 *dev_addr, enum p2p_wps_method wps_method,
5030 int auto_join, int op_freq,
5031 const u8 *ssid, size_t ssid_len)
5033 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5034 MACSTR " dev " MACSTR " op_freq=%d)%s",
5035 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5036 auto_join ? " (auto_join)" : "");
5037 if (ssid && ssid_len) {
5038 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5039 wpa_ssid_txt(ssid, ssid_len));
5042 wpa_s->p2p_auto_pd = 0;
5043 wpa_s->p2p_auto_join = !!auto_join;
5044 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5045 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5046 wpa_s->pending_join_wps_method = wps_method;
5048 /* Make sure we are not running find during connection establishment */
5049 wpas_p2p_stop_find(wpa_s);
5051 wpa_s->p2p_join_scan_count = 0;
5052 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5057 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5058 const u8 *ssid, size_t ssid_len)
5060 struct wpa_supplicant *group;
5061 struct p2p_go_neg_results res;
5062 struct wpa_bss *bss;
5064 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5067 if (group != wpa_s) {
5068 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5069 sizeof(group->p2p_pin));
5070 group->p2p_wps_method = wpa_s->p2p_wps_method;
5073 * Need to mark the current interface for p2p_group_formation
5074 * when a separate group interface is not used. This is needed
5075 * to allow p2p_cancel stop a pending p2p_connect-join.
5076 * wpas_p2p_init_group_interface() addresses this for the case
5077 * where a separate group interface is used.
5079 wpa_s->global->p2p_group_formation = wpa_s;
5082 group->p2p_in_provisioning = 1;
5083 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5085 os_memset(&res, 0, sizeof(res));
5086 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5087 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5089 res.wps_method = wpa_s->pending_join_wps_method;
5090 if (freq && ssid && ssid_len) {
5092 res.ssid_len = ssid_len;
5093 os_memcpy(res.ssid, ssid, ssid_len);
5095 if (ssid && ssid_len) {
5096 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5099 bss = wpa_bss_get_bssid_latest(
5100 wpa_s, wpa_s->pending_join_iface_addr);
5103 res.freq = bss->freq;
5104 res.ssid_len = bss->ssid_len;
5105 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5106 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5108 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5109 } else if (ssid && ssid_len) {
5110 res.ssid_len = ssid_len;
5111 os_memcpy(res.ssid, ssid, ssid_len);
5112 wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5113 wpa_ssid_txt(ssid, ssid_len));
5117 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5118 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5120 wpa_drv_cancel_remain_on_channel(wpa_s);
5121 wpa_s->off_channel_freq = 0;
5122 wpa_s->roc_waiting_drv_freq = 0;
5124 wpas_start_wps_enrollee(group, &res);
5127 * Allow a longer timeout for join-a-running-group than normal 15
5128 * second group formation timeout since the GO may not have authorized
5129 * our connection yet.
5131 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5132 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5139 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5140 int *force_freq, int *pref_freq, int go,
5141 unsigned int *pref_freq_list,
5142 unsigned int *num_pref_freq)
5144 struct wpa_used_freq_data *freqs;
5145 int res, best_freq, num_unused;
5146 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5148 max_pref_freq = *num_pref_freq;
5151 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5152 sizeof(struct wpa_used_freq_data));
5156 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5157 wpa_s->num_multichan_concurrent);
5160 * It is possible that the total number of used frequencies is bigger
5161 * than the number of frequencies used for P2P, so get the system wide
5162 * number of unused frequencies.
5164 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5166 wpa_printf(MSG_DEBUG,
5167 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5168 freq, wpa_s->num_multichan_concurrent, num, num_unused);
5173 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5175 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5177 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5178 ieee80211_is_dfs(freq)) {
5180 * If freq is a DFS channel and DFS is offloaded
5181 * to the driver, allow P2P GO to use it.
5183 wpa_printf(MSG_DEBUG,
5184 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5187 wpa_printf(MSG_DEBUG,
5188 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5195 for (i = 0; i < num; i++) {
5196 if (freqs[i].freq == freq)
5200 if (num_unused <= 0 && !freq_in_use) {
5201 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5206 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5207 "requested channel (%u MHz)", freq);
5212 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5214 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5215 enum wpa_driver_if_type iface_type;
5218 iface_type = WPA_IF_P2P_GO;
5220 iface_type = WPA_IF_P2P_CLIENT;
5222 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5225 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5228 if (!res && max_pref_freq > 0) {
5229 *num_pref_freq = max_pref_freq;
5231 while (wpas_p2p_disallowed_freq(wpa_s->global,
5232 pref_freq_list[i]) &&
5233 i < *num_pref_freq) {
5234 wpa_printf(MSG_DEBUG,
5235 "P2P: preferred_freq_list[%d]=%d is disallowed",
5236 i, pref_freq_list[i]);
5239 if (i != *num_pref_freq) {
5240 best_freq = pref_freq_list[i];
5241 wpa_printf(MSG_DEBUG,
5242 "P2P: Using preferred_freq_list[%d]=%d",
5245 wpa_printf(MSG_DEBUG,
5246 "P2P: All driver preferred frequencies are disallowed for P2P use");
5250 wpa_printf(MSG_DEBUG,
5251 "P2P: No preferred frequency list available");
5255 /* We have a candidate frequency to use */
5256 if (best_freq > 0) {
5257 if (*pref_freq == 0 && num_unused > 0) {
5258 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5260 *pref_freq = best_freq;
5262 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5264 *force_freq = best_freq;
5266 } else if (num_unused > 0) {
5267 wpa_printf(MSG_DEBUG,
5268 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5271 wpa_printf(MSG_DEBUG,
5272 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5286 * wpas_p2p_connect - Request P2P Group Formation to be started
5287 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5288 * @peer_addr: Address of the peer P2P Device
5289 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5290 * @persistent_group: Whether to create a persistent group
5291 * @auto_join: Whether to select join vs. GO Negotiation automatically
5292 * @join: Whether to join an existing group (as a client) instead of starting
5293 * Group Owner negotiation; @peer_addr is BSSID in that case
5294 * @auth: Whether to only authorize the connection instead of doing that and
5295 * initiating Group Owner negotiation
5296 * @go_intent: GO Intent or -1 to use default
5297 * @freq: Frequency for the group or 0 for auto-selection
5298 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5299 * @persistent_id: Persistent group credentials to use for forcing GO
5300 * parameters or -1 to generate new values (SSID/passphrase)
5301 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5302 * interoperability workaround when initiating group formation
5303 * @ht40: Start GO with 40 MHz channel width
5304 * @vht: Start GO with VHT support
5305 * @vht_chwidth: Channel width supported by GO operating with VHT support
5306 * (VHT_CHANWIDTH_*).
5307 * @group_ssid: Specific Group SSID for join or %NULL if not set
5308 * @group_ssid_len: Length of @group_ssid in octets
5309 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5310 * failure, -2 on failure due to channel not currently available,
5311 * -3 if forced channel is not supported
5313 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5314 const char *pin, enum p2p_wps_method wps_method,
5315 int persistent_group, int auto_join, int join, int auth,
5316 int go_intent, int freq, unsigned int vht_center_freq2,
5317 int persistent_id, int pd, int ht40, int vht,
5318 unsigned int vht_chwidth, const u8 *group_ssid,
5319 size_t group_ssid_len)
5321 int force_freq = 0, pref_freq = 0;
5323 enum wpa_driver_if_type iftype;
5325 struct wpa_ssid *ssid = NULL;
5326 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5328 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5331 if (persistent_id >= 0) {
5332 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5333 if (ssid == NULL || ssid->disabled != 2 ||
5334 ssid->mode != WPAS_MODE_P2P_GO)
5338 os_free(wpa_s->global->add_psk);
5339 wpa_s->global->add_psk = NULL;
5341 wpa_s->global->p2p_fail_on_wps_complete = 0;
5342 wpa_s->global->pending_p2ps_group = 0;
5343 wpa_s->global->pending_p2ps_group_freq = 0;
5344 wpa_s->p2ps_method_config_any = 0;
5347 go_intent = wpa_s->conf->p2p_go_intent;
5350 wpa_s->p2p_long_listen = 0;
5352 wpa_s->p2p_wps_method = wps_method;
5353 wpa_s->p2p_persistent_group = !!persistent_group;
5354 wpa_s->p2p_persistent_id = persistent_id;
5355 wpa_s->p2p_go_intent = go_intent;
5356 wpa_s->p2p_connect_freq = freq;
5357 wpa_s->p2p_fallback_to_go_neg = 0;
5358 wpa_s->p2p_pd_before_go_neg = !!pd;
5359 wpa_s->p2p_go_ht40 = !!ht40;
5360 wpa_s->p2p_go_vht = !!vht;
5361 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5362 wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5365 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5366 else if (wps_method == WPS_PIN_DISPLAY) {
5367 ret = wps_generate_pin();
5368 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5370 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5371 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5372 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5375 wpa_s->p2p_pin[0] = '\0';
5377 if (join || auto_join) {
5378 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5380 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5381 "connect a running group from " MACSTR,
5382 MAC2STR(peer_addr));
5383 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5386 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5387 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5389 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5390 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5394 os_get_reltime(&wpa_s->p2p_auto_started);
5395 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5397 wpa_s->p2p_auto_started.sec,
5398 wpa_s->p2p_auto_started.usec);
5400 wpa_s->user_initiated_pd = 1;
5401 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5403 group_ssid, group_ssid_len) < 0)
5408 size = P2P_MAX_PREF_CHANNELS;
5409 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5410 go_intent == 15, pref_freq_list, &size);
5413 wpas_p2p_set_own_freq_preference(wpa_s,
5414 force_freq ? force_freq : pref_freq);
5416 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5418 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5420 if (wpa_s->create_p2p_iface) {
5421 /* Prepare to add a new interface for the group */
5422 iftype = WPA_IF_P2P_GROUP;
5423 if (go_intent == 15)
5424 iftype = WPA_IF_P2P_GO;
5425 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5426 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5427 "interface for the group");
5431 if_addr = wpa_s->pending_interface_addr;
5433 if_addr = wpa_s->own_addr;
5434 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5438 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5440 force_freq, persistent_group, ssid,
5446 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5447 go_intent, if_addr, force_freq,
5448 persistent_group, ssid, pref_freq) < 0) {
5449 if (wpa_s->create_p2p_iface)
5450 wpas_p2p_remove_pending_group_interface(wpa_s);
5458 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5459 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5460 * @freq: Frequency of the channel in MHz
5461 * @duration: Duration of the stay on the channel in milliseconds
5463 * This callback is called when the driver indicates that it has started the
5464 * requested remain-on-channel duration.
5466 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5467 unsigned int freq, unsigned int duration)
5469 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5471 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)",
5472 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5473 wpa_s->roc_waiting_drv_freq, freq, duration);
5474 if (wpa_s->off_channel_freq &&
5475 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5476 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5477 wpa_s->pending_listen_duration);
5478 wpa_s->pending_listen_freq = 0;
5480 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5481 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5487 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5489 /* Limit maximum Listen state time based on driver limitation. */
5490 if (timeout > wpa_s->max_remain_on_chan)
5491 timeout = wpa_s->max_remain_on_chan;
5493 return p2p_listen(wpa_s->global->p2p, timeout);
5498 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5499 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5500 * @freq: Frequency of the channel in MHz
5502 * This callback is called when the driver indicates that a remain-on-channel
5503 * operation has been completed, i.e., the duration on the requested channel
5506 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5509 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5510 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5511 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5512 wpas_p2p_listen_work_done(wpa_s);
5513 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5515 if (wpa_s->p2p_long_listen > 0)
5516 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5517 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5518 return; /* P2P module started a new operation */
5519 if (offchannel_pending_action_tx(wpa_s))
5521 if (wpa_s->p2p_long_listen > 0) {
5522 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5523 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5526 * When listen duration is over, stop listen & update p2p_state
5529 p2p_stop_listen(wpa_s->global->p2p);
5535 * wpas_p2p_group_remove - Remove a P2P group
5536 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5537 * @ifname: Network interface name of the group interface or "*" to remove all
5539 * Returns: 0 on success, -1 on failure
5541 * This function is used to remove a P2P group. This can be used to disconnect
5542 * from a group in which the local end is a P2P Client or to end a P2P Group in
5543 * case the local end is the Group Owner. If a virtual network interface was
5544 * created for this group, that interface will be removed. Otherwise, only the
5545 * configured P2P group network will be removed from the interface.
5547 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5549 struct wpa_global *global = wpa_s->global;
5550 struct wpa_supplicant *calling_wpa_s = wpa_s;
5552 if (os_strcmp(ifname, "*") == 0) {
5553 struct wpa_supplicant *prev;
5554 wpa_s = global->ifaces;
5557 wpa_s = wpa_s->next;
5558 if (prev->p2p_group_interface !=
5559 NOT_P2P_GROUP_INTERFACE ||
5560 (prev->current_ssid &&
5561 prev->current_ssid->p2p_group))
5562 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5567 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5568 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5572 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5576 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5580 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5581 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5582 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5585 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5586 &size, pref_freq_list);
5587 if (!res && size > 0) {
5589 while (wpas_p2p_disallowed_freq(wpa_s->global,
5590 pref_freq_list[i]) &&
5592 wpa_printf(MSG_DEBUG,
5593 "P2P: preferred_freq_list[%d]=%d is disallowed",
5594 i, pref_freq_list[i]);
5598 freq = pref_freq_list[i];
5599 wpa_printf(MSG_DEBUG,
5600 "P2P: Using preferred_freq_list[%d]=%d",
5603 wpa_printf(MSG_DEBUG,
5604 "P2P: All driver preferred frequencies are disallowed for P2P use");
5607 wpa_printf(MSG_DEBUG,
5608 "P2P: No preferred frequency list available");
5613 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5615 if (wpa_s->best_24_freq > 0 &&
5616 p2p_supported_freq_go(wpa_s->global->p2p,
5617 wpa_s->best_24_freq)) {
5618 freq = wpa_s->best_24_freq;
5619 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5620 "channel: %d MHz", freq);
5622 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5624 freq = 2412 + (r % 3) * 25;
5625 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5626 "channel: %d MHz", freq);
5631 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5633 if (wpa_s->best_5_freq > 0 &&
5634 p2p_supported_freq_go(wpa_s->global->p2p,
5635 wpa_s->best_5_freq)) {
5636 freq = wpa_s->best_5_freq;
5637 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5638 "channel: %d MHz", freq);
5640 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5642 freq = 5180 + (r % 4) * 20;
5643 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5644 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5645 "5 GHz channel for P2P group");
5648 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5649 "channel: %d MHz", freq);
5653 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5654 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5655 ieee80211_is_dfs(freq)) {
5657 * If freq is a DFS channel and DFS is offloaded to the
5658 * driver, allow P2P GO to use it.
5660 wpa_printf(MSG_DEBUG, "P2P: "
5661 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5665 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5666 "(%u MHz) is not supported for P2P uses",
5675 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5676 const struct p2p_channels *channels,
5679 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5680 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5681 freq_included(wpa_s, channels, freq))
5687 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5688 struct p2p_go_neg_results *params,
5689 const struct p2p_channels *channels)
5693 /* first try some random selection of the social channels */
5694 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5697 for (i = 0; i < 3; i++) {
5698 params->freq = 2412 + ((r + i) % 3) * 25;
5699 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5703 /* try all other channels in operating class 81 */
5704 for (i = 0; i < 11; i++) {
5705 params->freq = 2412 + i * 5;
5707 /* skip social channels; covered in the previous loop */
5708 if (params->freq == 2412 ||
5709 params->freq == 2437 ||
5710 params->freq == 2462)
5713 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5717 /* try all channels in operating class 115 */
5718 for (i = 0; i < 4; i++) {
5719 params->freq = 5180 + i * 20;
5720 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5721 freq_included(wpa_s, channels, params->freq) &&
5722 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5726 /* try all channels in operating class 124 */
5727 for (i = 0; i < 4; i++) {
5728 params->freq = 5745 + i * 20;
5729 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5730 freq_included(wpa_s, channels, params->freq) &&
5731 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5735 /* try social channel class 180 channel 2 */
5736 params->freq = 58320 + 1 * 2160;
5737 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5738 freq_included(wpa_s, channels, params->freq) &&
5739 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5742 /* try all channels in reg. class 180 */
5743 for (i = 0; i < 4; i++) {
5744 params->freq = 58320 + i * 2160;
5745 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5746 freq_included(wpa_s, channels, params->freq) &&
5747 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5752 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5755 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5760 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5761 struct p2p_go_neg_results *params,
5762 int freq, int vht_center_freq2, int ht40,
5763 int vht, int max_oper_chwidth,
5764 const struct p2p_channels *channels)
5766 struct wpa_used_freq_data *freqs;
5768 unsigned int num, i;
5769 int ignore_no_freqs = 0;
5771 os_memset(params, 0, sizeof(*params));
5772 params->role_go = 1;
5773 params->ht40 = ht40;
5775 params->max_oper_chwidth = max_oper_chwidth;
5776 params->vht_center_freq2 = vht_center_freq2;
5778 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5779 sizeof(struct wpa_used_freq_data));
5783 num = get_shared_radio_freqs_data(wpa_s, freqs,
5784 wpa_s->num_multichan_concurrent);
5786 if (wpa_s->current_ssid &&
5787 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5788 wpa_s->wpa_state == WPA_COMPLETED) {
5789 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5793 * If the frequency selection is done for an active P2P GO that
5794 * is not sharing a frequency, allow to select a new frequency
5795 * even if there are no unused frequencies as we are about to
5796 * move the P2P GO so its frequency can be re-used.
5798 for (i = 0; i < num; i++) {
5799 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5800 freqs[i].flags == 0) {
5801 ignore_no_freqs = 1;
5807 /* try using the forced freq */
5809 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5810 wpa_printf(MSG_DEBUG,
5811 "P2P: Forced GO freq %d MHz not accepted",
5816 for (i = 0; i < num; i++) {
5817 if (freqs[i].freq == freq) {
5818 wpa_printf(MSG_DEBUG,
5819 "P2P: forced freq (%d MHz) is also shared",
5821 params->freq = freq;
5826 if (!ignore_no_freqs &&
5827 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5828 wpa_printf(MSG_DEBUG,
5829 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5834 wpa_printf(MSG_DEBUG,
5835 "P2P: force GO freq (%d MHz) on a free channel",
5837 params->freq = freq;
5841 /* consider using one of the shared frequencies */
5843 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5844 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5845 wpa_printf(MSG_DEBUG,
5846 "P2P: Use shared freq (%d MHz) for GO",
5848 params->freq = cand;
5852 /* try using one of the shared freqs */
5853 for (i = 0; i < num; i++) {
5854 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5856 wpa_printf(MSG_DEBUG,
5857 "P2P: Use shared freq (%d MHz) for GO",
5859 params->freq = freqs[i].freq;
5865 if (!ignore_no_freqs &&
5866 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5867 wpa_printf(MSG_DEBUG,
5868 "P2P: Cannot force GO on any of the channels we are already using");
5872 /* try using the setting from the configuration file */
5873 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5874 wpa_s->conf->p2p_oper_channel >= 1 &&
5875 wpa_s->conf->p2p_oper_channel <= 11 &&
5876 wpas_p2p_supported_freq_go(
5878 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5879 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5880 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5881 "frequency %d MHz", params->freq);
5885 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5886 wpa_s->conf->p2p_oper_reg_class == 116 ||
5887 wpa_s->conf->p2p_oper_reg_class == 117 ||
5888 wpa_s->conf->p2p_oper_reg_class == 124 ||
5889 wpa_s->conf->p2p_oper_reg_class == 125 ||
5890 wpa_s->conf->p2p_oper_reg_class == 126 ||
5891 wpa_s->conf->p2p_oper_reg_class == 127) &&
5892 wpas_p2p_supported_freq_go(wpa_s, channels,
5894 5 * wpa_s->conf->p2p_oper_channel)) {
5895 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5896 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5897 "frequency %d MHz", params->freq);
5901 /* Try using best channels */
5902 if (wpa_s->conf->p2p_oper_channel == 0 &&
5903 wpa_s->best_overall_freq > 0 &&
5904 wpas_p2p_supported_freq_go(wpa_s, channels,
5905 wpa_s->best_overall_freq)) {
5906 params->freq = wpa_s->best_overall_freq;
5907 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5908 "channel %d MHz", params->freq);
5912 if (wpa_s->conf->p2p_oper_channel == 0 &&
5913 wpa_s->best_24_freq > 0 &&
5914 wpas_p2p_supported_freq_go(wpa_s, channels,
5915 wpa_s->best_24_freq)) {
5916 params->freq = wpa_s->best_24_freq;
5917 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5918 "channel %d MHz", params->freq);
5922 if (wpa_s->conf->p2p_oper_channel == 0 &&
5923 wpa_s->best_5_freq > 0 &&
5924 wpas_p2p_supported_freq_go(wpa_s, channels,
5925 wpa_s->best_5_freq)) {
5926 params->freq = wpa_s->best_5_freq;
5927 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5928 "channel %d MHz", params->freq);
5932 /* try using preferred channels */
5933 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5934 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5935 params->freq = cand;
5936 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5937 "channels", params->freq);
5941 /* Try using one of the group common freqs */
5942 if (wpa_s->p2p_group_common_freqs) {
5943 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5944 cand = wpa_s->p2p_group_common_freqs[i];
5945 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5946 params->freq = cand;
5947 wpa_printf(MSG_DEBUG,
5948 "P2P: Use freq %d MHz common with the peer",
5955 /* no preference, select some channel */
5956 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5958 if (params->freq == 0) {
5959 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5972 static struct wpa_supplicant *
5973 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5976 struct wpa_supplicant *group_wpa_s;
5978 if (!wpas_p2p_create_iface(wpa_s)) {
5979 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5981 wpa_s->p2p_first_connection_timeout = 0;
5985 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5986 WPA_IF_P2P_CLIENT) < 0) {
5987 wpa_msg_global(wpa_s, MSG_ERROR,
5988 "P2P: Failed to add group interface");
5991 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5992 if (group_wpa_s == NULL) {
5993 wpa_msg_global(wpa_s, MSG_ERROR,
5994 "P2P: Failed to initialize group interface");
5995 wpas_p2p_remove_pending_group_interface(wpa_s);
5999 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6000 group_wpa_s->ifname);
6001 group_wpa_s->p2p_first_connection_timeout = 0;
6007 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6008 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6009 * @persistent_group: Whether to create a persistent group
6010 * @freq: Frequency for the group or 0 to indicate no hardcoding
6011 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6012 * @ht40: Start GO with 40 MHz channel width
6013 * @vht: Start GO with VHT support
6014 * @vht_chwidth: channel bandwidth for GO operating with VHT support
6015 * Returns: 0 on success, -1 on failure
6017 * This function creates a new P2P group with the local end as the Group Owner,
6018 * i.e., without using Group Owner Negotiation.
6020 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6021 int freq, int vht_center_freq2, int ht40, int vht,
6022 int max_oper_chwidth)
6024 struct p2p_go_neg_results params;
6026 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6029 os_free(wpa_s->global->add_psk);
6030 wpa_s->global->add_psk = NULL;
6032 /* Make sure we are not running find during connection establishment */
6033 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6034 wpas_p2p_stop_find_oper(wpa_s);
6036 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6040 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6041 ht40, vht, max_oper_chwidth, NULL))
6044 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
6045 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
6046 ieee80211_is_dfs(params.freq)) {
6048 * If freq is a DFS channel and DFS is offloaded to the
6049 * driver, allow P2P GO to use it.
6051 wpa_printf(MSG_DEBUG,
6052 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6053 __func__, params.freq);
6055 wpa_printf(MSG_DEBUG,
6056 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6061 p2p_go_params(wpa_s->global->p2p, ¶ms);
6062 params.persistent_group = persistent_group;
6064 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6067 wpas_start_wps_go(wpa_s, ¶ms, 0);
6073 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6074 struct wpa_ssid *params, int addr_allocated,
6075 int freq, int force_scan)
6077 struct wpa_ssid *ssid;
6079 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6083 os_get_reltime(&wpa_s->scan_min_time);
6084 wpa_s->p2p_last_4way_hs_fail = NULL;
6086 wpa_supplicant_ap_deinit(wpa_s);
6088 ssid = wpa_config_add_network(wpa_s->conf);
6091 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6092 wpa_config_set_network_defaults(ssid);
6093 ssid->temporary = 1;
6094 ssid->proto = WPA_PROTO_RSN;
6095 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
6096 ssid->group_cipher = WPA_CIPHER_CCMP;
6097 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6098 ssid->ssid = os_malloc(params->ssid_len);
6099 if (ssid->ssid == NULL) {
6100 wpa_config_remove_network(wpa_s->conf, ssid->id);
6103 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6104 ssid->ssid_len = params->ssid_len;
6105 ssid->p2p_group = 1;
6106 ssid->export_keys = 1;
6107 if (params->psk_set) {
6108 os_memcpy(ssid->psk, params->psk, 32);
6111 if (params->passphrase)
6112 ssid->passphrase = os_strdup(params->passphrase);
6114 wpa_s->show_group_started = 1;
6115 wpa_s->p2p_in_invitation = 1;
6116 wpa_s->p2p_invite_go_freq = freq;
6117 wpa_s->p2p_go_group_formation_completed = 0;
6118 wpa_s->global->p2p_group_formation = wpa_s;
6120 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6122 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6123 wpas_p2p_group_formation_timeout,
6124 wpa_s->parent, NULL);
6125 wpa_supplicant_select_network(wpa_s, ssid);
6131 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6132 struct wpa_ssid *ssid, int addr_allocated,
6133 int force_freq, int neg_freq,
6134 int vht_center_freq2, int ht40,
6135 int vht, int max_oper_chwidth,
6136 const struct p2p_channels *channels,
6137 int connection_timeout, int force_scan)
6139 struct p2p_go_neg_results params;
6142 if (ssid->disabled != 2 || ssid->ssid == NULL)
6145 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6146 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6147 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6150 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6151 wpa_s->parent, NULL)) {
6153 * This can happen if Invitation Response frame was lost
6154 * and the peer (GO of a persistent group) tries to
6155 * invite us again. Reschedule the timeout to avoid
6156 * terminating the wait for the connection too early
6157 * since we now know that the peer is still trying to
6158 * invite us instead of having already started the GO.
6160 wpa_printf(MSG_DEBUG,
6161 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6162 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6163 wpas_p2p_group_formation_timeout,
6164 wpa_s->parent, NULL);
6169 os_free(wpa_s->global->add_psk);
6170 wpa_s->global->add_psk = NULL;
6172 /* Make sure we are not running find during connection establishment */
6173 wpas_p2p_stop_find_oper(wpa_s);
6175 wpa_s->p2p_fallback_to_go_neg = 0;
6177 if (ssid->mode == WPAS_MODE_P2P_GO) {
6178 if (force_freq > 0) {
6179 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6183 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6185 (freq > 0 && !freq_included(wpa_s, channels, freq)))
6188 } else if (ssid->mode == WPAS_MODE_INFRA) {
6190 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6191 struct os_reltime now;
6192 struct wpa_bss *bss =
6193 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6195 os_get_reltime(&now);
6197 !os_reltime_expired(&now, &bss->last_update, 5) &&
6198 freq_included(wpa_s, channels, bss->freq))
6204 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6210 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
6211 ht40, vht, max_oper_chwidth, channels))
6215 params.psk_set = ssid->psk_set;
6217 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6218 if (ssid->passphrase) {
6219 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6220 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6221 "persistent group");
6224 os_strlcpy(params.passphrase, ssid->passphrase,
6225 sizeof(params.passphrase));
6227 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6228 params.ssid_len = ssid->ssid_len;
6229 params.persistent_group = 1;
6231 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6235 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6237 wpa_s->p2p_first_connection_timeout = connection_timeout;
6238 wpas_start_wps_go(wpa_s, ¶ms, 0);
6244 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6245 struct wpabuf *proberesp_ies)
6247 struct wpa_supplicant *wpa_s = ctx;
6248 if (wpa_s->ap_iface) {
6249 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6250 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6251 wpabuf_free(beacon_ies);
6252 wpabuf_free(proberesp_ies);
6256 wpabuf_free(hapd->p2p_beacon_ie);
6257 hapd->p2p_beacon_ie = beacon_ies;
6259 wpabuf_free(hapd->p2p_probe_resp_ie);
6260 hapd->p2p_probe_resp_ie = proberesp_ies;
6262 wpabuf_free(beacon_ies);
6263 wpabuf_free(proberesp_ies);
6265 wpa_supplicant_ap_update_beacon(wpa_s);
6269 static void wpas_p2p_idle_update(void *ctx, int idle)
6271 struct wpa_supplicant *wpa_s = ctx;
6272 if (!wpa_s->ap_iface)
6274 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6276 if (wpa_s->global->p2p_fail_on_wps_complete &&
6277 wpa_s->p2p_in_provisioning) {
6278 wpas_p2p_grpform_fail_after_wps(wpa_s);
6281 wpas_p2p_set_group_idle_timeout(wpa_s);
6283 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6287 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6288 struct wpa_ssid *ssid)
6290 struct p2p_group *group;
6291 struct p2p_group_config *cfg;
6293 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6296 cfg = os_zalloc(sizeof(*cfg));
6300 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6301 cfg->persistent_group = 2;
6302 else if (ssid->p2p_persistent_group)
6303 cfg->persistent_group = 1;
6304 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6305 if (wpa_s->max_stations &&
6306 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6307 cfg->max_clients = wpa_s->max_stations;
6309 cfg->max_clients = wpa_s->conf->max_num_sta;
6310 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6311 cfg->ssid_len = ssid->ssid_len;
6312 cfg->freq = ssid->frequency;
6313 cfg->cb_ctx = wpa_s;
6314 cfg->ie_update = wpas_p2p_ie_update;
6315 cfg->idle_update = wpas_p2p_idle_update;
6317 group = p2p_group_init(wpa_s->global->p2p, cfg);
6320 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6321 p2p_group_notif_formation_done(group);
6322 wpa_s->p2p_group = group;
6327 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6330 struct wpa_ssid *ssid = wpa_s->current_ssid;
6332 if (!wpa_s->p2p_in_provisioning) {
6333 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6334 "provisioning not in progress");
6338 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6339 u8 go_dev_addr[ETH_ALEN];
6340 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6341 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6343 /* Clear any stored provisioning info */
6344 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6347 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6349 wpa_s->p2p_go_group_formation_completed = 1;
6350 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6352 * Use a separate timeout for initial data connection to
6353 * complete to allow the group to be removed automatically if
6354 * something goes wrong in this step before the P2P group idle
6355 * timeout mechanism is taken into use.
6357 wpa_dbg(wpa_s, MSG_DEBUG,
6358 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6359 P2P_MAX_INITIAL_CONN_WAIT);
6360 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6361 wpas_p2p_group_formation_timeout,
6362 wpa_s->parent, NULL);
6363 /* Complete group formation on successful data connection. */
6364 wpa_s->p2p_go_group_formation_completed = 0;
6367 * Use a separate timeout for initial data connection to
6368 * complete to allow the group to be removed automatically if
6369 * the client does not complete data connection successfully.
6371 wpa_dbg(wpa_s, MSG_DEBUG,
6372 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6373 P2P_MAX_INITIAL_CONN_WAIT_GO);
6374 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6375 wpas_p2p_group_formation_timeout,
6376 wpa_s->parent, NULL);
6378 * Complete group formation on first successful data connection
6380 wpa_s->p2p_go_group_formation_completed = 0;
6382 if (wpa_s->global->p2p)
6383 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6384 wpas_group_formation_completed(wpa_s, 1, 0);
6388 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6389 struct wps_event_fail *fail)
6391 if (!wpa_s->p2p_in_provisioning) {
6392 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6393 "provisioning not in progress");
6397 if (wpa_s->go_params) {
6398 p2p_clear_provisioning_info(
6400 wpa_s->go_params->peer_device_addr);
6403 wpas_notify_p2p_wps_failed(wpa_s, fail);
6405 if (wpa_s == wpa_s->global->p2p_group_formation) {
6407 * Allow some time for the failed WPS negotiation exchange to
6408 * complete, but remove the group since group formation cannot
6409 * succeed after provisioning failure.
6411 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6412 wpa_s->global->p2p_fail_on_wps_complete = 1;
6413 eloop_deplete_timeout(0, 50000,
6414 wpas_p2p_group_formation_timeout,
6415 wpa_s->parent, NULL);
6420 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6422 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6423 !wpa_s->p2p_in_provisioning)
6426 wpas_p2p_grpform_fail_after_wps(wpa_s);
6432 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6433 const char *config_method,
6434 enum wpas_p2p_prov_disc_use use,
6435 struct p2ps_provision *p2ps_prov)
6439 wpa_s->global->pending_p2ps_group = 0;
6440 wpa_s->global->pending_p2ps_group_freq = 0;
6441 wpa_s->p2p_fallback_to_go_neg = 0;
6442 wpa_s->pending_pd_use = NORMAL_PD;
6443 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6444 p2ps_prov->conncap = p2ps_group_capability(
6445 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6446 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6448 wpa_printf(MSG_DEBUG,
6449 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6450 __func__, p2ps_prov->conncap,
6451 p2ps_prov->adv_id, p2ps_prov->conncap,
6452 p2ps_prov->status, p2ps_prov->info);
6455 } else if (os_strncmp(config_method, "display", 7) == 0)
6456 config_methods = WPS_CONFIG_DISPLAY;
6457 else if (os_strncmp(config_method, "keypad", 6) == 0)
6458 config_methods = WPS_CONFIG_KEYPAD;
6459 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6460 os_strncmp(config_method, "pushbutton", 10) == 0)
6461 config_methods = WPS_CONFIG_PUSHBUTTON;
6463 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6468 if (use == WPAS_P2P_PD_AUTO) {
6469 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6470 wpa_s->pending_pd_config_methods = config_methods;
6471 wpa_s->p2p_auto_pd = 1;
6472 wpa_s->p2p_auto_join = 0;
6473 wpa_s->pending_pd_before_join = 0;
6474 wpa_s->auto_pd_scan_retry = 0;
6475 wpas_p2p_stop_find(wpa_s);
6476 wpa_s->p2p_join_scan_count = 0;
6477 os_get_reltime(&wpa_s->p2p_auto_started);
6478 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6479 wpa_s->p2p_auto_started.sec,
6480 wpa_s->p2p_auto_started.usec);
6481 wpas_p2p_join_scan(wpa_s, NULL);
6485 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6490 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6491 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6496 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6499 return p2p_scan_result_text(ies, ies_len, buf, end);
6503 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6505 if (!offchannel_pending_action_tx(wpa_s))
6508 if (wpa_s->p2p_send_action_work)
6509 wpas_p2p_free_send_action_work(wpa_s);
6511 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6512 "operation request");
6513 offchannel_clear_pending_action_tx(wpa_s);
6517 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6518 enum p2p_discovery_type type,
6519 unsigned int num_req_dev_types, const u8 *req_dev_types,
6520 const u8 *dev_id, unsigned int search_delay,
6521 u8 seek_cnt, const char **seek_string, int freq)
6523 wpas_p2p_clear_pending_action_tx(wpa_s);
6524 wpa_s->p2p_long_listen = 0;
6526 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6527 wpa_s->p2p_in_provisioning)
6530 wpa_supplicant_cancel_sched_scan(wpa_s);
6532 return p2p_find(wpa_s->global->p2p, timeout, type,
6533 num_req_dev_types, req_dev_types, dev_id,
6534 search_delay, seek_cnt, seek_string, freq);
6538 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6539 struct wpa_scan_results *scan_res)
6541 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6543 if (wpa_s->p2p_scan_work) {
6544 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6545 wpa_s->p2p_scan_work = NULL;
6546 radio_work_done(work);
6549 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6553 * Indicate that results have been processed so that the P2P module can
6554 * continue pending tasks.
6556 p2p_scan_res_handled(wpa_s->global->p2p);
6560 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6562 wpas_p2p_clear_pending_action_tx(wpa_s);
6563 wpa_s->p2p_long_listen = 0;
6564 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6565 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6567 if (wpa_s->global->p2p)
6568 p2p_stop_find(wpa_s->global->p2p);
6570 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6571 wpa_printf(MSG_DEBUG,
6572 "P2P: Do not consider the scan results after stop_find");
6573 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6578 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6580 wpas_p2p_stop_find_oper(wpa_s);
6581 if (!wpa_s->global->pending_group_iface_for_p2ps)
6582 wpas_p2p_remove_pending_group_interface(wpa_s);
6586 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6588 struct wpa_supplicant *wpa_s = eloop_ctx;
6589 wpa_s->p2p_long_listen = 0;
6593 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6597 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6600 wpa_supplicant_cancel_sched_scan(wpa_s);
6601 wpas_p2p_clear_pending_action_tx(wpa_s);
6605 * This is a request for unlimited Listen state. However, at
6606 * least for now, this is mapped to a Listen state for one
6611 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6612 wpa_s->p2p_long_listen = 0;
6615 * Stop previous find/listen operation to avoid trying to request a new
6616 * remain-on-channel operation while the driver is still running the
6619 if (wpa_s->global->p2p)
6620 p2p_stop_find(wpa_s->global->p2p);
6622 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6623 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6624 wpa_s->p2p_long_listen = timeout * 1000;
6625 eloop_register_timeout(timeout, 0,
6626 wpas_p2p_long_listen_timeout,
6634 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6635 u8 *buf, size_t len, int p2p_group)
6637 struct wpabuf *p2p_ie;
6640 if (wpa_s->global->p2p_disabled)
6643 * Advertize mandatory cross connection capability even on
6644 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6646 if (wpa_s->conf->p2p_disabled && p2p_group)
6648 if (wpa_s->global->p2p == NULL)
6653 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6654 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6656 wpabuf_free(p2p_ie);
6662 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6663 const u8 *dst, const u8 *bssid,
6664 const u8 *ie, size_t ie_len,
6665 unsigned int rx_freq, int ssi_signal)
6667 if (wpa_s->global->p2p_disabled)
6669 if (wpa_s->global->p2p == NULL)
6672 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6673 ie, ie_len, rx_freq)) {
6674 case P2P_PREQ_NOT_P2P:
6675 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6678 case P2P_PREQ_MALFORMED:
6679 case P2P_PREQ_NOT_LISTEN:
6680 case P2P_PREQ_NOT_PROCESSED:
6681 default: /* make gcc happy */
6683 case P2P_PREQ_PROCESSED:
6689 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6690 const u8 *sa, const u8 *bssid,
6691 u8 category, const u8 *data, size_t len, int freq)
6693 if (wpa_s->global->p2p_disabled)
6695 if (wpa_s->global->p2p == NULL)
6698 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6703 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6705 if (wpa_s->global->p2p_disabled)
6707 if (wpa_s->global->p2p == NULL)
6710 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6714 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6716 p2p_group_deinit(wpa_s->p2p_group);
6717 wpa_s->p2p_group = NULL;
6719 wpa_s->ap_configured_cb = NULL;
6720 wpa_s->ap_configured_cb_ctx = NULL;
6721 wpa_s->ap_configured_cb_data = NULL;
6722 wpa_s->connect_without_scan = NULL;
6726 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6728 wpa_s->p2p_long_listen = 0;
6730 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6733 return p2p_reject(wpa_s->global->p2p, addr);
6737 /* Invite to reinvoke a persistent group */
6738 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6739 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6740 int vht_center_freq2, int ht40, int vht, int max_chwidth,
6743 enum p2p_invite_role role;
6747 int no_pref_freq_given = pref_freq == 0;
6748 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6750 wpa_s->global->p2p_invite_group = NULL;
6752 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6754 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6756 wpa_s->p2p_persistent_go_freq = freq;
6757 wpa_s->p2p_go_ht40 = !!ht40;
6758 wpa_s->p2p_go_vht = !!vht;
6759 wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6760 wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6761 if (ssid->mode == WPAS_MODE_P2P_GO) {
6762 role = P2P_INVITE_ROLE_GO;
6763 if (peer_addr == NULL) {
6764 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6765 "address in invitation command");
6768 if (wpas_p2p_create_iface(wpa_s)) {
6769 if (wpas_p2p_add_group_interface(wpa_s,
6770 WPA_IF_P2P_GO) < 0) {
6771 wpa_printf(MSG_ERROR, "P2P: Failed to "
6772 "allocate a new interface for the "
6776 bssid = wpa_s->pending_interface_addr;
6778 bssid = wpa_s->own_addr;
6780 role = P2P_INVITE_ROLE_CLIENT;
6781 peer_addr = ssid->bssid;
6783 wpa_s->pending_invite_ssid_id = ssid->id;
6785 size = P2P_MAX_PREF_CHANNELS;
6786 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6787 role == P2P_INVITE_ROLE_GO,
6788 pref_freq_list, &size);
6792 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6795 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6797 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6798 no_pref_freq_given && pref_freq > 0 &&
6799 wpa_s->num_multichan_concurrent > 1 &&
6800 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6801 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6807 * Stop any find/listen operations before invitation and possibly
6808 * connection establishment.
6810 wpas_p2p_stop_find_oper(wpa_s);
6812 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6813 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6818 /* Invite to join an active group */
6819 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6820 const u8 *peer_addr, const u8 *go_dev_addr)
6822 struct wpa_global *global = wpa_s->global;
6823 enum p2p_invite_role role;
6825 struct wpa_ssid *ssid;
6827 int freq = 0, force_freq = 0, pref_freq = 0;
6829 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6831 wpa_s->p2p_persistent_go_freq = 0;
6832 wpa_s->p2p_go_ht40 = 0;
6833 wpa_s->p2p_go_vht = 0;
6834 wpa_s->p2p_go_vht_center_freq2 = 0;
6835 wpa_s->p2p_go_max_oper_chwidth = 0;
6837 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6838 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6841 if (wpa_s == NULL) {
6842 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6846 ssid = wpa_s->current_ssid;
6848 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6853 wpa_s->global->p2p_invite_group = wpa_s;
6854 persistent = ssid->p2p_persistent_group &&
6855 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6856 ssid->ssid, ssid->ssid_len);
6858 if (ssid->mode == WPAS_MODE_P2P_GO) {
6859 role = P2P_INVITE_ROLE_ACTIVE_GO;
6860 bssid = wpa_s->own_addr;
6861 if (go_dev_addr == NULL)
6862 go_dev_addr = wpa_s->global->p2p_dev_addr;
6863 freq = ssid->frequency;
6865 role = P2P_INVITE_ROLE_CLIENT;
6866 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6867 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6868 "invite to current group");
6871 bssid = wpa_s->bssid;
6872 if (go_dev_addr == NULL &&
6873 !is_zero_ether_addr(wpa_s->go_dev_addr))
6874 go_dev_addr = wpa_s->go_dev_addr;
6875 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6876 (int) wpa_s->assoc_freq;
6878 wpa_s->parent->pending_invite_ssid_id = -1;
6880 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6883 size = P2P_MAX_PREF_CHANNELS;
6884 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6885 role == P2P_INVITE_ROLE_ACTIVE_GO,
6886 pref_freq_list, &size);
6889 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6891 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6892 ssid->ssid, ssid->ssid_len, force_freq,
6893 go_dev_addr, persistent, pref_freq, -1);
6897 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6899 struct wpa_ssid *ssid = wpa_s->current_ssid;
6900 u8 go_dev_addr[ETH_ALEN];
6901 int network_id = -1;
6907 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6908 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6909 wpa_s->parent, NULL);
6912 if (!wpa_s->show_group_started || !ssid)
6915 wpa_s->show_group_started = 0;
6916 if (!wpa_s->p2p_go_group_formation_completed &&
6917 wpa_s->global->p2p_group_formation == wpa_s) {
6918 wpa_dbg(wpa_s, MSG_DEBUG,
6919 "P2P: Marking group formation completed on client on data connection");
6920 wpa_s->p2p_go_group_formation_completed = 1;
6921 wpa_s->global->p2p_group_formation = NULL;
6922 wpa_s->p2p_in_provisioning = 0;
6923 wpa_s->p2p_in_invitation = 0;
6926 os_memset(go_dev_addr, 0, ETH_ALEN);
6927 if (ssid->bssid_set)
6928 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6929 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6931 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6933 if (wpa_s->global->p2p_group_formation == wpa_s)
6934 wpa_s->global->p2p_group_formation = NULL;
6936 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6937 (int) wpa_s->assoc_freq;
6940 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6943 res = os_snprintf(ip_addr, sizeof(ip_addr),
6944 " ip_addr=%u.%u.%u.%u "
6945 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6946 ip[0], ip[1], ip[2], ip[3],
6947 ip[4], ip[5], ip[6], ip[7],
6948 ip[8], ip[9], ip[10], ip[11]);
6949 if (os_snprintf_error(sizeof(ip_addr), res))
6953 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6954 ssid->passphrase == NULL && ssid->psk_set ?
6956 ssid->passphrase, go_dev_addr, persistent,
6960 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6963 network_id = ssid->id;
6964 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6968 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6969 u32 interval1, u32 duration2, u32 interval2)
6973 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6976 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6977 wpa_s->current_ssid == NULL ||
6978 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6981 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6982 wpa_s->own_addr, wpa_s->assoc_freq,
6983 duration1, interval1, duration2, interval2);
6985 wpa_s->waiting_presence_resp = 1;
6991 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6992 unsigned int interval)
6994 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6997 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7001 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7003 if (wpa_s->current_ssid == NULL) {
7005 * current_ssid can be cleared when P2P client interface gets
7006 * disconnected, so assume this interface was used as P2P
7011 return wpa_s->current_ssid->p2p_group &&
7012 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7016 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7018 struct wpa_supplicant *wpa_s = eloop_ctx;
7020 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7021 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7026 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7028 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7032 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7036 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7037 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7039 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7042 timeout = wpa_s->conf->p2p_group_idle;
7043 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7044 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7045 timeout = P2P_MAX_CLIENT_IDLE;
7051 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7052 timeout = 0; /* special client mode no-timeout */
7057 if (wpa_s->p2p_in_provisioning) {
7059 * Use the normal group formation timeout during the
7060 * provisioning phase to avoid terminating this process too
7061 * early due to group idle timeout.
7063 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7064 "during provisioning");
7068 if (wpa_s->show_group_started) {
7070 * Use the normal group formation timeout between the end of
7071 * the provisioning phase and completion of 4-way handshake to
7072 * avoid terminating this process too early due to group idle
7075 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7076 "while waiting for initial 4-way handshake to "
7081 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7083 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7088 /* Returns 1 if the interface was removed */
7089 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7090 u16 reason_code, const u8 *ie, size_t ie_len,
7091 int locally_generated)
7093 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7096 if (!locally_generated)
7097 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7100 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7101 wpa_s->current_ssid &&
7102 wpa_s->current_ssid->p2p_group &&
7103 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7104 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7105 "session is ending");
7106 if (wpas_p2p_group_delete(wpa_s,
7107 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7116 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7117 u16 reason_code, const u8 *ie, size_t ie_len,
7118 int locally_generated)
7120 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7123 if (!locally_generated)
7124 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7129 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7131 struct p2p_data *p2p = wpa_s->global->p2p;
7136 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7139 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7140 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7142 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7143 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7146 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7147 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7149 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7150 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7152 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7153 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7154 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7155 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7156 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7159 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7160 p2p_set_sec_dev_types(p2p,
7161 (void *) wpa_s->conf->sec_device_type,
7162 wpa_s->conf->num_sec_device_types);
7164 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7166 p2p_remove_wps_vendor_extensions(p2p);
7167 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7168 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7170 p2p_add_wps_vendor_extension(
7171 p2p, wpa_s->conf->wps_vendor_ext[i]);
7175 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7176 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7178 country[0] = wpa_s->conf->country[0];
7179 country[1] = wpa_s->conf->country[1];
7181 p2p_set_country(p2p, country);
7184 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7185 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7186 wpa_s->conf->p2p_ssid_postfix ?
7187 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7191 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7192 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7194 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7195 u8 reg_class, channel;
7200 if (wpa_s->conf->p2p_listen_reg_class &&
7201 wpa_s->conf->p2p_listen_channel) {
7202 reg_class = wpa_s->conf->p2p_listen_reg_class;
7203 channel = wpa_s->conf->p2p_listen_channel;
7208 * Pick one of the social channels randomly as the
7211 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7214 channel = 1 + (r % 3) * 5;
7217 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7220 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7223 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7224 u8 op_reg_class, op_channel, cfg_op_channel;
7227 if (wpa_s->conf->p2p_oper_reg_class &&
7228 wpa_s->conf->p2p_oper_channel) {
7229 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7230 op_channel = wpa_s->conf->p2p_oper_channel;
7235 * Use random operation channel from (1, 6, 11)
7236 *if no other preference is indicated.
7238 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7241 op_channel = 1 + (r % 3) * 5;
7244 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7247 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7251 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7252 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7253 wpa_s->conf->p2p_pref_chan) < 0) {
7254 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7258 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7259 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7264 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7265 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7269 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7272 if (!wpa_s->ap_iface)
7274 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7279 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7281 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7284 wpa_s->global->cross_connection = enabled;
7285 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7288 struct wpa_supplicant *iface;
7290 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7292 if (iface->cross_connect_enabled == 0)
7295 iface->cross_connect_enabled = 0;
7296 iface->cross_connect_in_use = 0;
7297 wpa_msg_global(iface->parent, MSG_INFO,
7298 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7300 iface->cross_connect_uplink);
7308 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7310 struct wpa_supplicant *iface;
7312 if (!uplink->global->cross_connection)
7315 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7316 if (!iface->cross_connect_enabled)
7318 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7321 if (iface->ap_iface == NULL)
7323 if (iface->cross_connect_in_use)
7326 iface->cross_connect_in_use = 1;
7327 wpa_msg_global(iface->parent, MSG_INFO,
7328 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7329 iface->ifname, iface->cross_connect_uplink);
7334 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7336 struct wpa_supplicant *iface;
7338 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7339 if (!iface->cross_connect_enabled)
7341 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7344 if (!iface->cross_connect_in_use)
7347 wpa_msg_global(iface->parent, MSG_INFO,
7348 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7349 iface->ifname, iface->cross_connect_uplink);
7350 iface->cross_connect_in_use = 0;
7355 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7357 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7358 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7359 wpa_s->cross_connect_disallowed)
7360 wpas_p2p_disable_cross_connect(wpa_s);
7362 wpas_p2p_enable_cross_connect(wpa_s);
7363 if (!wpa_s->ap_iface &&
7364 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7365 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7369 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7371 wpas_p2p_disable_cross_connect(wpa_s);
7372 if (!wpa_s->ap_iface &&
7373 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7375 wpas_p2p_set_group_idle_timeout(wpa_s);
7379 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7381 struct wpa_supplicant *iface;
7383 if (!wpa_s->global->cross_connection)
7386 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7389 if (iface->drv_flags &
7390 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7392 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7393 iface != wpa_s->parent)
7396 wpa_s->cross_connect_enabled = 1;
7397 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7398 sizeof(wpa_s->cross_connect_uplink));
7399 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7400 "%s to %s whenever uplink is available",
7401 wpa_s->ifname, wpa_s->cross_connect_uplink);
7403 if (iface->ap_iface || iface->current_ssid == NULL ||
7404 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7405 iface->cross_connect_disallowed ||
7406 iface->wpa_state != WPA_COMPLETED)
7409 wpa_s->cross_connect_in_use = 1;
7410 wpa_msg_global(wpa_s->parent, MSG_INFO,
7411 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7412 wpa_s->ifname, wpa_s->cross_connect_uplink);
7418 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7420 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7421 !wpa_s->p2p_in_provisioning)
7422 return 0; /* not P2P client operation */
7424 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7426 if (wpa_s != wpa_s->parent)
7427 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
7428 wpas_p2p_group_formation_failed(wpa_s, 0);
7433 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7435 struct wpa_supplicant *wpa_s = eloop_ctx;
7436 wpas_p2p_notif_pbc_overlap(wpa_s);
7440 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7441 enum wpas_p2p_channel_update_trig trig)
7443 struct p2p_channels chan, cli_chan;
7444 struct wpa_used_freq_data *freqs = NULL;
7445 unsigned int num = wpa_s->num_multichan_concurrent;
7447 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7450 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7454 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7456 os_memset(&chan, 0, sizeof(chan));
7457 os_memset(&cli_chan, 0, sizeof(cli_chan));
7458 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7459 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7464 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7466 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7469 * The used frequencies map changed, so it is possible that a GO is
7470 * using a channel that is no longer valid for P2P use. It is also
7471 * possible that due to policy consideration, it would be preferable to
7472 * move it to a frequency already used by other station interfaces.
7474 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7480 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7481 struct wpa_scan_results *scan_res)
7483 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7487 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7489 struct wpa_global *global = wpa_s->global;
7493 if (global->p2p == NULL)
7496 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7498 if (wpa_s->pending_interface_name[0] &&
7499 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7502 peer = p2p_get_go_neg_peer(global->p2p);
7504 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7505 MACSTR, MAC2STR(peer));
7506 p2p_unauthorize(global->p2p, peer);
7510 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7511 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7512 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7516 if (wpa_s->pending_pd_before_join) {
7517 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7518 wpa_s->pending_pd_before_join = 0;
7522 wpas_p2p_stop_find(wpa_s);
7524 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7525 if (wpa_s == global->p2p_group_formation &&
7526 (wpa_s->p2p_in_provisioning ||
7527 wpa_s->parent->pending_interface_type ==
7528 WPA_IF_P2P_CLIENT)) {
7529 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7530 "formation found - cancelling",
7533 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7534 wpa_s->parent, NULL);
7535 if (wpa_s->p2p_in_provisioning) {
7536 wpas_group_formation_completed(wpa_s, 0, 0);
7539 wpas_p2p_group_delete(wpa_s,
7540 P2P_GROUP_REMOVAL_REQUESTED);
7542 } else if (wpa_s->p2p_in_invitation) {
7543 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7546 wpas_p2p_group_formation_failed(wpa_s, 0);
7552 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7560 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7562 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7565 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7566 "being available anymore");
7567 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7571 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7572 int freq_24, int freq_5, int freq_overall)
7574 struct p2p_data *p2p = wpa_s->global->p2p;
7577 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7581 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7584 struct p2p_data *p2p = wpa_s->global->p2p;
7589 if (hwaddr_aton(addr, peer))
7592 return p2p_unauthorize(p2p, peer);
7597 * wpas_p2p_disconnect - Disconnect from a P2P Group
7598 * @wpa_s: Pointer to wpa_supplicant data
7599 * Returns: 0 on success, -1 on failure
7601 * This can be used to disconnect from a group in which the local end is a P2P
7602 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7603 * virtual network interface was created for this group, that interface will be
7604 * removed. Otherwise, only the configured P2P group network will be removed
7605 * from the interface.
7607 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7613 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7618 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7622 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7625 ret = p2p_in_progress(wpa_s->global->p2p);
7628 * Check whether there is an ongoing WPS provisioning step (or
7629 * other parts of group formation) on another interface since
7630 * p2p_in_progress() does not report this to avoid issues for
7631 * scans during such provisioning step.
7633 if (wpa_s->global->p2p_group_formation &&
7634 wpa_s->global->p2p_group_formation != wpa_s) {
7635 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7636 "in group formation",
7637 wpa_s->global->p2p_group_formation->ifname);
7642 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7643 struct os_reltime now;
7644 os_get_reltime(&now);
7645 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7646 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7647 /* Wait for the first client has expired */
7648 wpa_s->global->p2p_go_wait_client.sec = 0;
7650 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7659 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7660 struct wpa_ssid *ssid)
7662 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7663 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7664 wpa_s->parent, NULL) > 0) {
7666 * Remove the network by scheduling the group formation
7667 * timeout to happen immediately. The teardown code
7668 * needs to be scheduled to run asynch later so that we
7669 * don't delete data from under ourselves unexpectedly.
7670 * Calling wpas_p2p_group_formation_timeout directly
7671 * causes a series of crashes in WPS failure scenarios.
7673 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7674 "P2P group network getting removed");
7675 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7676 wpa_s->parent, NULL);
7681 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7682 const u8 *addr, const u8 *ssid,
7688 for (s = wpa_s->conf->ssid; s; s = s->next) {
7689 if (s->disabled != 2)
7692 (ssid_len != s->ssid_len ||
7693 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7696 if (s->mode == WPAS_MODE_P2P_GO)
7700 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7701 return s; /* peer is GO in the persistent group */
7702 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7704 for (i = 0; i < s->num_p2p_clients; i++) {
7705 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7706 addr, ETH_ALEN) == 0)
7707 return s; /* peer is P2P client in persistent
7716 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7719 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7720 wpa_s->parent, NULL) > 0) {
7722 * This can happen if WPS provisioning step is not terminated
7723 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7724 * peer was able to connect, there is no need to time out group
7725 * formation after this, though. In addition, this is used with
7726 * the initial connection wait on the GO as a separate formation
7727 * timeout and as such, expected to be hit after the initial WPS
7728 * provisioning step.
7730 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7732 if (!wpa_s->p2p_go_group_formation_completed &&
7733 !wpa_s->group_formation_reported) {
7735 * GO has not yet notified group formation success since
7736 * the WPS step was not completed cleanly. Do that
7737 * notification now since the P2P Client was able to
7738 * connect and as such, must have received the
7739 * credential from the WPS step.
7741 if (wpa_s->global->p2p)
7742 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7743 wpas_group_formation_completed(wpa_s, 1, 0);
7746 if (!wpa_s->p2p_go_group_formation_completed) {
7747 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7748 wpa_s->p2p_go_group_formation_completed = 1;
7749 wpa_s->global->p2p_group_formation = NULL;
7750 wpa_s->p2p_in_provisioning = 0;
7751 wpa_s->p2p_in_invitation = 0;
7753 wpa_s->global->p2p_go_wait_client.sec = 0;
7756 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7760 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7763 struct wpa_supplicant *group = wpa_s;
7766 if (wpa_s->global->p2p_group_formation)
7767 group = wpa_s->global->p2p_group_formation;
7768 wpa_s = wpa_s->global->p2p_init_wpa_s;
7769 offchannel_send_action_done(wpa_s);
7771 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7772 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7773 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7774 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7775 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7776 wpa_s->p2p_go_vht_center_freq2,
7777 wpa_s->p2p_persistent_id,
7778 wpa_s->p2p_pd_before_go_neg,
7781 wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7786 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7790 if (!wpa_s->p2p_fallback_to_go_neg ||
7791 wpa_s->p2p_in_provisioning <= 5)
7794 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7795 return 0; /* peer operating as a GO */
7797 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7798 "fallback to GO Negotiation");
7799 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7800 "reason=GO-not-found");
7801 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7803 return res == 1 ? 2 : 1;
7807 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7809 struct wpa_supplicant *ifs;
7811 if (wpa_s->wpa_state > WPA_SCANNING) {
7812 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7813 "concurrent operation",
7814 wpa_s->conf->p2p_search_delay);
7815 return wpa_s->conf->p2p_search_delay;
7818 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7820 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7821 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7822 "delay due to concurrent operation on "
7824 wpa_s->conf->p2p_search_delay,
7826 return wpa_s->conf->p2p_search_delay;
7834 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7835 struct wpa_ssid *s, const u8 *addr,
7838 struct psk_list_entry *psk, *tmp;
7841 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7843 if ((iface_addr && !psk->p2p &&
7844 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7845 (!iface_addr && psk->p2p &&
7846 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7847 wpa_dbg(wpa_s, MSG_DEBUG,
7848 "P2P: Remove persistent group PSK list entry for "
7850 MAC2STR(psk->addr), psk->p2p);
7851 dl_list_del(&psk->list);
7861 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7862 const u8 *p2p_dev_addr,
7863 const u8 *psk, size_t psk_len)
7865 struct wpa_ssid *ssid = wpa_s->current_ssid;
7866 struct wpa_ssid *persistent;
7867 struct psk_list_entry *p, *last;
7869 if (psk_len != sizeof(p->psk))
7873 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7874 " p2p_dev_addr=" MACSTR,
7875 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7876 if (is_zero_ether_addr(p2p_dev_addr))
7877 p2p_dev_addr = NULL;
7879 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7883 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7884 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7885 /* To be added to persistent group once created */
7886 if (wpa_s->global->add_psk == NULL) {
7887 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7888 if (wpa_s->global->add_psk == NULL)
7891 p = wpa_s->global->add_psk;
7894 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7897 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7899 os_memcpy(p->psk, psk, psk_len);
7903 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7904 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7908 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7911 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7915 p = os_zalloc(sizeof(*p));
7920 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7923 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7925 os_memcpy(p->psk, psk, psk_len);
7927 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7928 (last = dl_list_last(&persistent->psk_list,
7929 struct psk_list_entry, list))) {
7930 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7931 MACSTR " (p2p=%u) to make room for a new one",
7932 MAC2STR(last->addr), last->p2p);
7933 dl_list_del(&last->list);
7937 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7938 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7939 p2p_dev_addr == NULL);
7941 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7942 MACSTR, MAC2STR(p2p_dev_addr));
7944 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7947 dl_list_add(&persistent->psk_list, &p->list);
7949 if (wpa_s->parent->conf->update_config &&
7950 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7951 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7955 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7956 struct wpa_ssid *s, const u8 *addr,
7961 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7962 if (res > 0 && wpa_s->conf->update_config &&
7963 wpa_config_write(wpa_s->confname, wpa_s->conf))
7964 wpa_dbg(wpa_s, MSG_DEBUG,
7965 "P2P: Failed to update configuration");
7969 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7970 const u8 *peer, int iface_addr)
7972 struct hostapd_data *hapd;
7973 struct hostapd_wpa_psk *psk, *prev, *rem;
7974 struct sta_info *sta;
7976 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7977 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7980 /* Remove per-station PSK entry */
7981 hapd = wpa_s->ap_iface->bss[0];
7983 psk = hapd->conf->ssid.wpa_psk;
7985 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7987 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7988 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7989 MACSTR " iface_addr=%d",
7990 MAC2STR(peer), iface_addr);
7992 prev->next = psk->next;
7994 hapd->conf->ssid.wpa_psk = psk->next;
8004 /* Disconnect from group */
8006 sta = ap_get_sta(hapd, peer);
8008 sta = ap_get_sta_p2p(hapd, peer);
8010 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8011 " (iface_addr=%d) from group",
8012 MAC2STR(peer), iface_addr);
8013 hostapd_drv_sta_deauth(hapd, sta->addr,
8014 WLAN_REASON_DEAUTH_LEAVING);
8015 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8020 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8024 struct wpa_supplicant *w;
8025 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
8027 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8029 /* Remove from any persistent group */
8030 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8031 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8034 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8035 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8038 /* Remove from any operating group */
8039 for (w = wpa_s->global->ifaces; w; w = w->next)
8040 wpas_p2p_remove_client_go(w, peer, iface_addr);
8044 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8046 struct wpa_supplicant *wpa_s = eloop_ctx;
8047 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8051 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8053 struct wpa_supplicant *wpa_s = eloop_ctx;
8055 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8056 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8060 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8061 struct wpa_ssid *ssid)
8063 struct wpa_supplicant *iface;
8065 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8066 if (!iface->current_ssid ||
8067 iface->current_ssid->frequency == freq ||
8068 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8069 !iface->current_ssid->p2p_group))
8072 /* Remove the connection with least priority */
8073 if (!wpas_is_p2p_prioritized(iface)) {
8074 /* STA connection has priority over existing
8075 * P2P connection, so remove the interface. */
8076 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8077 eloop_register_timeout(0, 0,
8078 wpas_p2p_group_freq_conflict,
8080 /* If connection in progress is P2P connection, do not
8081 * proceed for the connection. */
8087 /* P2P connection has priority, disable the STA network
8089 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8091 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8092 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8093 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8095 /* If P2P connection is in progress, continue
8108 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8110 struct wpa_ssid *ssid = wpa_s->current_ssid;
8112 if (ssid == NULL || !ssid->p2p_group)
8115 if (wpa_s->p2p_last_4way_hs_fail &&
8116 wpa_s->p2p_last_4way_hs_fail == ssid) {
8117 u8 go_dev_addr[ETH_ALEN];
8118 struct wpa_ssid *persistent;
8120 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8122 ssid->ssid_len) <= 0) {
8123 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8127 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8128 MACSTR, MAC2STR(go_dev_addr));
8129 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
8132 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8133 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8136 wpa_msg_global(wpa_s->parent, MSG_INFO,
8137 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8140 wpa_s->p2p_last_4way_hs_fail = NULL;
8142 * Remove the group from a timeout to avoid issues with caller
8143 * continuing to use the interface if this is on a P2P group
8146 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8151 wpa_s->p2p_last_4way_hs_fail = ssid;
8156 #ifdef CONFIG_WPS_NFC
8158 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8166 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8170 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8171 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8178 wpabuf_put_be16(ret, wsc_len);
8180 wpabuf_put_buf(ret, wsc);
8181 wpabuf_put_be16(ret, wpabuf_len(p2p));
8182 wpabuf_put_buf(ret, p2p);
8186 wpa_hexdump_buf(MSG_DEBUG,
8187 "P2P: Generated NFC connection handover message", ret);
8191 tmp = ndef_build_p2p(ret);
8194 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8204 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8205 struct wpa_ssid **ssid, u8 *go_dev_addr)
8207 struct wpa_supplicant *iface;
8210 os_memset(go_dev_addr, 0, ETH_ALEN);
8213 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8214 if (iface->wpa_state < WPA_ASSOCIATING ||
8215 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8216 !iface->current_ssid->p2p_group ||
8217 iface->current_ssid->mode != WPAS_MODE_INFRA)
8220 *ssid = iface->current_ssid;
8222 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8223 return iface->assoc_freq;
8229 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8232 struct wpabuf *wsc, *p2p;
8233 struct wpa_ssid *ssid;
8234 u8 go_dev_addr[ETH_ALEN];
8235 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8237 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8238 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8242 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8243 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8244 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8245 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8249 if (cli_freq == 0) {
8250 wsc = wps_build_nfc_handover_req_p2p(
8251 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8254 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8255 go_dev_addr, ssid ? ssid->ssid : NULL,
8256 ssid ? ssid->ssid_len : 0);
8258 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8262 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8265 struct wpabuf *wsc, *p2p;
8266 struct wpa_ssid *ssid;
8267 u8 go_dev_addr[ETH_ALEN];
8268 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8270 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8273 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8274 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8275 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8278 if (cli_freq == 0) {
8279 wsc = wps_build_nfc_handover_sel_p2p(
8281 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8282 DEV_PW_NFC_CONNECTION_HANDOVER,
8283 wpa_s->conf->wps_nfc_dh_pubkey,
8284 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8287 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8288 go_dev_addr, ssid ? ssid->ssid : NULL,
8289 ssid ? ssid->ssid_len : 0);
8291 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8295 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8296 struct p2p_nfc_params *params)
8298 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8299 "connection handover (freq=%d)",
8302 if (params->go_freq && params->go_ssid_len) {
8303 wpa_s->p2p_wps_method = WPS_NFC;
8304 wpa_s->pending_join_wps_method = WPS_NFC;
8305 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8306 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8308 return wpas_p2p_join_start(wpa_s, params->go_freq,
8310 params->go_ssid_len);
8313 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8314 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8315 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8316 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8317 params->go_ssid_len ? params->go_ssid : NULL,
8318 params->go_ssid_len);
8322 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8323 struct p2p_nfc_params *params, int tag)
8325 int res, persistent;
8326 struct wpa_ssid *ssid;
8328 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8329 "connection handover");
8330 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8331 ssid = wpa_s->current_ssid;
8334 if (ssid->mode != WPAS_MODE_P2P_GO)
8336 if (wpa_s->ap_iface == NULL)
8340 if (wpa_s == NULL) {
8341 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8345 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8346 DEV_PW_NFC_CONNECTION_HANDOVER &&
8347 !wpa_s->parent->p2p_oob_dev_pw) {
8348 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8351 res = wpas_ap_wps_add_nfc_pw(
8352 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8353 wpa_s->parent->p2p_oob_dev_pw,
8354 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8355 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8360 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8364 if (!params->peer ||
8365 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8368 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8369 " to join", MAC2STR(params->peer->p2p_device_addr));
8371 wpa_s->global->p2p_invite_group = wpa_s;
8372 persistent = ssid->p2p_persistent_group &&
8373 wpas_p2p_get_persistent(wpa_s->parent,
8374 params->peer->p2p_device_addr,
8375 ssid->ssid, ssid->ssid_len);
8376 wpa_s->parent->pending_invite_ssid_id = -1;
8378 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8379 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8380 ssid->ssid, ssid->ssid_len, ssid->frequency,
8381 wpa_s->global->p2p_dev_addr, persistent, 0,
8382 wpa_s->parent->p2p_oob_dev_pw_id);
8386 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8387 struct p2p_nfc_params *params,
8390 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8391 "connection handover");
8392 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8393 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8394 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8395 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8400 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8401 struct p2p_nfc_params *params,
8406 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8407 "connection handover");
8408 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8409 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8410 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8411 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8416 res = wpas_p2p_listen(wpa_s, 60);
8418 p2p_unauthorize(wpa_s->global->p2p,
8419 params->peer->p2p_device_addr);
8426 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8427 const struct wpabuf *data,
8428 int sel, int tag, int forced_freq)
8430 const u8 *pos, *end;
8432 struct p2p_nfc_params params;
8435 os_memset(¶ms, 0, sizeof(params));
8438 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8440 pos = wpabuf_head(data);
8441 end = pos + wpabuf_len(data);
8443 if (end - pos < 2) {
8444 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8448 len = WPA_GET_BE16(pos);
8450 if (len > end - pos) {
8451 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8455 params.wsc_attr = pos;
8456 params.wsc_len = len;
8459 if (end - pos < 2) {
8460 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8464 len = WPA_GET_BE16(pos);
8466 if (len > end - pos) {
8467 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8471 params.p2p_attr = pos;
8472 params.p2p_len = len;
8475 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8476 params.wsc_attr, params.wsc_len);
8477 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8478 params.p2p_attr, params.p2p_len);
8480 wpa_hexdump(MSG_DEBUG,
8481 "P2P: Ignored extra data after P2P attributes",
8485 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8489 if (params.next_step == NO_ACTION)
8492 if (params.next_step == BOTH_GO) {
8493 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8494 MAC2STR(params.peer->p2p_device_addr));
8498 if (params.next_step == PEER_CLIENT) {
8499 if (!is_zero_ether_addr(params.go_dev_addr)) {
8500 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8501 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8503 MAC2STR(params.peer->p2p_device_addr),
8505 MAC2STR(params.go_dev_addr),
8506 wpa_ssid_txt(params.go_ssid,
8507 params.go_ssid_len));
8509 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8510 "peer=" MACSTR " freq=%d",
8511 MAC2STR(params.peer->p2p_device_addr),
8517 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8518 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8519 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8523 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8524 wpa_s->p2p_oob_dev_pw = NULL;
8526 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8527 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8532 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8533 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8534 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8535 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8536 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8537 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8538 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8542 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8543 "peer OOB Device Password Id %u", id);
8546 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8547 "Device Password Id %u", id);
8548 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8549 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8550 params.oob_dev_pw_len -
8551 WPS_OOB_PUBKEY_HASH_LEN - 2);
8552 wpa_s->p2p_oob_dev_pw_id = id;
8553 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8554 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8555 params.oob_dev_pw_len -
8556 WPS_OOB_PUBKEY_HASH_LEN - 2);
8557 if (wpa_s->p2p_oob_dev_pw == NULL)
8560 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8561 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8562 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8565 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8566 "without Device Password");
8567 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8570 switch (params.next_step) {
8574 /* already covered above */
8577 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8579 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8581 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8583 /* TODO: use own OOB Dev Pw */
8584 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8591 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8592 const struct wpabuf *data, int forced_freq)
8594 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8597 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8601 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8602 const struct wpabuf *req,
8603 const struct wpabuf *sel, int forced_freq)
8608 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8611 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8613 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8614 wpabuf_head(req), wpabuf_len(req));
8615 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8616 wpabuf_head(sel), wpabuf_len(sel));
8618 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8619 tmp = ndef_parse_p2p(init ? sel : req);
8621 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8625 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8633 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8636 int go_intent = wpa_s->conf->p2p_go_intent;
8637 struct wpa_supplicant *iface;
8639 if (wpa_s->global->p2p == NULL)
8643 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8644 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8646 if (!iface->ap_iface)
8648 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8650 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8652 if (wpa_s->p2p_nfc_tag_enabled)
8653 wpas_p2p_remove_pending_group_interface(wpa_s);
8654 wpa_s->p2p_nfc_tag_enabled = 0;
8658 if (wpa_s->global->p2p_disabled)
8661 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8662 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8663 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8664 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8665 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8666 "to allow static handover cases");
8670 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8672 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8673 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8674 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8675 if (wpa_s->p2p_oob_dev_pw == NULL)
8677 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8679 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8680 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8682 * P2P Group Interface present and the command came on group
8683 * interface, so enable the token for the current interface.
8685 wpa_s->create_p2p_iface = 0;
8687 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8690 if (wpa_s->create_p2p_iface) {
8691 enum wpa_driver_if_type iftype;
8692 /* Prepare to add a new interface for the group */
8693 iftype = WPA_IF_P2P_GROUP;
8694 if (go_intent == 15)
8695 iftype = WPA_IF_P2P_GO;
8696 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8697 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8698 "interface for the group");
8702 if_addr = wpa_s->pending_interface_addr;
8704 if_addr = wpa_s->own_addr;
8706 wpa_s->p2p_nfc_tag_enabled = enabled;
8708 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8709 struct hostapd_data *hapd;
8710 if (iface->ap_iface == NULL)
8712 hapd = iface->ap_iface->bss[0];
8713 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8714 hapd->conf->wps_nfc_dh_pubkey =
8715 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8716 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8717 hapd->conf->wps_nfc_dh_privkey =
8718 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8719 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8720 hapd->conf->wps_nfc_dev_pw =
8721 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8722 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8724 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8725 wpa_dbg(iface, MSG_DEBUG,
8726 "P2P: Failed to enable NFC Tag for GO");
8729 p2p_set_authorized_oob_dev_pw_id(
8730 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8736 #endif /* CONFIG_WPS_NFC */
8739 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8740 struct wpa_used_freq_data *freqs,
8743 u8 curr_chan, cand, chan;
8747 * If possible, optimize the Listen channel to be a channel that is
8748 * already used by one of the other interfaces.
8750 if (!wpa_s->conf->p2p_optimize_listen_chan)
8753 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8756 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8757 for (i = 0, cand = 0; i < num; i++) {
8758 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8759 if (curr_chan == chan) {
8764 if (chan == 1 || chan == 6 || chan == 11)
8769 wpa_dbg(wpa_s, MSG_DEBUG,
8770 "P2P: Update Listen channel to %u based on operating channel",
8772 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8777 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8779 struct hostapd_config *conf;
8780 struct p2p_go_neg_results params;
8781 struct csa_settings csa_settings;
8782 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8783 int old_freq = current_ssid->frequency;
8786 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8787 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8792 * TODO: This function may not always work correctly. For example,
8793 * when we have a running GO and a BSS on a DFS channel.
8795 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8796 wpa_dbg(wpa_s, MSG_DEBUG,
8797 "P2P CSA: Failed to select new frequency for GO");
8801 if (current_ssid->frequency == params.freq) {
8802 wpa_dbg(wpa_s, MSG_DEBUG,
8803 "P2P CSA: Selected same frequency - not moving GO");
8807 conf = hostapd_config_defaults();
8809 wpa_dbg(wpa_s, MSG_DEBUG,
8810 "P2P CSA: Failed to allocate default config");
8814 current_ssid->frequency = params.freq;
8815 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8816 wpa_dbg(wpa_s, MSG_DEBUG,
8817 "P2P CSA: Failed to create new GO config");
8822 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8823 wpa_dbg(wpa_s, MSG_DEBUG,
8824 "P2P CSA: CSA to a different band is not supported");
8829 os_memset(&csa_settings, 0, sizeof(csa_settings));
8830 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8831 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8832 csa_settings.freq_params.freq = params.freq;
8833 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8834 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8835 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8837 if (conf->ieee80211ac) {
8838 int freq1 = 0, freq2 = 0;
8841 if (ieee80211_freq_to_channel_ext(params.freq,
8842 conf->secondary_channel,
8843 conf->vht_oper_chwidth,
8845 NUM_HOSTAPD_MODES) {
8846 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8851 if (conf->vht_oper_centr_freq_seg0_idx)
8852 freq1 = ieee80211_chan_to_freq(
8854 conf->vht_oper_centr_freq_seg0_idx);
8856 if (conf->vht_oper_centr_freq_seg1_idx)
8857 freq2 = ieee80211_chan_to_freq(
8859 conf->vht_oper_centr_freq_seg1_idx);
8861 if (freq1 < 0 || freq2 < 0) {
8862 wpa_dbg(wpa_s, MSG_DEBUG,
8863 "P2P CSA: Selected invalid VHT center freqs");
8868 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8869 csa_settings.freq_params.center_freq1 = freq1;
8870 csa_settings.freq_params.center_freq2 = freq2;
8872 switch (conf->vht_oper_chwidth) {
8873 case VHT_CHANWIDTH_80MHZ:
8874 case VHT_CHANWIDTH_80P80MHZ:
8875 csa_settings.freq_params.bandwidth = 80;
8877 case VHT_CHANWIDTH_160MHZ:
8878 csa_settings.freq_params.bandwidth = 160;
8883 ret = ap_switch_channel(wpa_s, &csa_settings);
8885 current_ssid->frequency = old_freq;
8886 hostapd_config_free(conf);
8891 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8893 struct p2p_go_neg_results params;
8894 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8896 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8898 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8899 current_ssid->frequency);
8901 /* Stop the AP functionality */
8902 /* TODO: Should do this in a way that does not indicated to possible
8903 * P2P Clients in the group that the group is terminated. */
8904 wpa_supplicant_ap_deinit(wpa_s);
8906 /* Reselect the GO frequency */
8907 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) {
8908 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8909 wpas_p2p_group_delete(wpa_s,
8910 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8913 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8917 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8918 wpa_printf(MSG_DEBUG,
8919 "P2P: Selected freq (%u MHz) is not valid for P2P",
8921 wpas_p2p_group_delete(wpa_s,
8922 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8926 /* Update the frequency */
8927 current_ssid->frequency = params.freq;
8928 wpa_s->connect_without_scan = current_ssid;
8929 wpa_s->reassociate = 1;
8930 wpa_s->disconnected = 0;
8931 wpa_supplicant_req_scan(wpa_s, 0, 0);
8935 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8937 struct wpa_supplicant *wpa_s = eloop_ctx;
8939 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8942 wpas_p2p_go_update_common_freqs(wpa_s);
8944 /* Do not move GO in the middle of a CSA */
8945 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8946 wpa_printf(MSG_DEBUG,
8947 "P2P: CSA is in progress - not moving GO");
8952 * First, try a channel switch flow. If it is not supported or fails,
8953 * take down the GO and bring it up again.
8955 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8956 wpas_p2p_move_go_no_csa(wpa_s);
8960 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8962 struct wpa_supplicant *wpa_s = eloop_ctx;
8963 struct wpa_used_freq_data *freqs = NULL;
8964 unsigned int num = wpa_s->num_multichan_concurrent;
8966 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8970 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8972 /* Previous attempt to move a GO was not possible -- try again. */
8973 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8974 WPAS_P2P_CHANNEL_UPDATE_ANY);
8981 * Consider moving a GO from its currently used frequency:
8982 * 1. It is possible that due to regulatory consideration the frequency
8983 * can no longer be used and there is a need to evacuate the GO.
8984 * 2. It is possible that due to MCC considerations, it would be preferable
8985 * to move the GO to a channel that is currently used by some other
8986 * station interface.
8988 * In case a frequency that became invalid is once again valid, cancel a
8989 * previously initiated GO frequency change.
8991 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8992 struct wpa_used_freq_data *freqs,
8995 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8996 unsigned int timeout;
8999 wpas_p2p_go_update_common_freqs(wpa_s);
9001 freq = wpa_s->current_ssid->frequency;
9002 for (i = 0, invalid_freq = 0; i < num; i++) {
9003 if (freqs[i].freq == freq) {
9004 flags = freqs[i].flags;
9006 /* The channel is invalid, must change it */
9007 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
9008 wpa_dbg(wpa_s, MSG_DEBUG,
9009 "P2P: Freq=%d MHz no longer valid for GO",
9013 } else if (freqs[i].flags == 0) {
9014 /* Freq is not used by any other station interface */
9016 } else if (!p2p_supported_freq(wpa_s->global->p2p,
9018 /* Freq is not valid for P2P use cases */
9020 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9021 P2P_GO_FREQ_MOVE_SCM) {
9023 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9024 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
9025 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9027 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
9028 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9029 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9030 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9032 } else if ((wpa_s->drv_flags &
9033 WPA_DRIVER_FLAGS_AP_CSA) &&
9034 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9038 * We do not support CSA between bands, so move
9039 * GO only within the same band.
9041 if (wpa_s->ap_iface->current_mode->mode ==
9042 ieee80211_freq_to_chan(freqs[i].freq,
9049 wpa_dbg(wpa_s, MSG_DEBUG,
9050 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9051 invalid_freq, policy_move, flags);
9054 * The channel is valid, or we are going to have a policy move, so
9057 if (!invalid_freq || policy_move) {
9058 wpa_dbg(wpa_s, MSG_DEBUG,
9059 "P2P: Cancel a GO move from freq=%d MHz", freq);
9060 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9062 if (wpas_p2p_in_progress(wpa_s)) {
9063 wpa_dbg(wpa_s, MSG_DEBUG,
9064 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9065 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9067 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9068 wpas_p2p_reconsider_moving_go,
9074 if (!invalid_freq && (!policy_move || flags != 0)) {
9075 wpa_dbg(wpa_s, MSG_DEBUG,
9076 "P2P: Not initiating a GO frequency change");
9081 * Do not consider moving GO if it is in the middle of a CSA. When the
9082 * CSA is finished this flow should be retriggered.
9084 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9085 wpa_dbg(wpa_s, MSG_DEBUG,
9086 "P2P: Not initiating a GO frequency change - CSA is in progress");
9090 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9091 timeout = P2P_GO_FREQ_CHANGE_TIME;
9095 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9097 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9098 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9102 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9103 struct wpa_used_freq_data *freqs,
9105 enum wpas_p2p_channel_update_trig trig)
9107 struct wpa_supplicant *ifs;
9109 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9113 * Travers all the radio interfaces, and for each GO interface, check
9114 * if there is a need to move the GO from the frequency it is using,
9115 * or in case the frequency is valid again, cancel the evacuation flow.
9117 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9119 if (ifs->current_ssid == NULL ||
9120 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9124 * The GO was just started or completed channel switch, no need
9128 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9129 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9130 wpa_dbg(wpa_s, MSG_DEBUG,
9131 "P2P: GO move - schedule re-consideration");
9132 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9133 wpas_p2p_reconsider_moving_go,
9138 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9143 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9145 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9148 wpas_p2p_update_channel_list(wpa_s,
9149 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9153 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9155 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9156 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9157 "the management interface is being removed");
9158 wpas_p2p_deinit_global(wpa_s->global);
9163 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9165 if (wpa_s->ap_iface->bss)
9166 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9167 wpas_p2p_group_deinit(wpa_s);