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"
25 #include "eapol_supp/eapol_supp_sm.h"
26 #include "rsn_supp/wpa.h"
27 #include "wpa_supplicant_i.h"
30 #include "config_ssid.h"
35 #include "offchannel.h"
36 #include "wps_supplicant.h"
37 #include "p2p_supplicant.h"
38 #include "wifi_display.h"
42 * How many times to try to scan to find the GO before giving up on join
45 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
47 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
49 #ifndef P2P_MAX_CLIENT_IDLE
51 * How many seconds to try to reconnect to the GO when connection in P2P client
54 #define P2P_MAX_CLIENT_IDLE 10
55 #endif /* P2P_MAX_CLIENT_IDLE */
57 #ifndef P2P_MAX_INITIAL_CONN_WAIT
59 * How many seconds to wait for initial 4-way handshake to get completed after
60 * WPS provisioning step or after the re-invocation of a persistent group on a
63 #define P2P_MAX_INITIAL_CONN_WAIT 10
64 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
66 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
68 * How many seconds to wait for initial 4-way handshake to get completed after
69 * WPS provisioning step on the GO. This controls the extra time the P2P
70 * operation is considered to be in progress (e.g., to delay other scans) after
71 * WPS provisioning has been completed on the GO during group formation.
73 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
74 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
76 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
78 * How many seconds to wait for initial 4-way handshake to get completed after
79 * re-invocation of a persistent group on the GO when the client is expected
80 * to connect automatically (no user interaction).
82 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
83 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
85 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
87 enum p2p_group_removal_reason
{
88 P2P_GROUP_REMOVAL_UNKNOWN
,
89 P2P_GROUP_REMOVAL_SILENT
,
90 P2P_GROUP_REMOVAL_FORMATION_FAILED
,
91 P2P_GROUP_REMOVAL_REQUESTED
,
92 P2P_GROUP_REMOVAL_IDLE_TIMEOUT
,
93 P2P_GROUP_REMOVAL_UNAVAILABLE
,
94 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
,
95 P2P_GROUP_REMOVAL_PSK_FAILURE
,
96 P2P_GROUP_REMOVAL_FREQ_CONFLICT
100 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
101 static struct wpa_supplicant
*
102 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
104 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
105 const u8
*ssid
, size_t ssid_len
);
106 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
107 const u8
*ssid
, size_t ssid_len
);
108 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
);
109 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
110 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
111 int auto_join
, int freq
,
112 const u8
*ssid
, size_t ssid_len
);
113 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
);
114 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
);
115 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
);
116 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
);
117 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
119 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
);
120 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
122 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
);
123 static void wpas_stop_listen(void *ctx
);
124 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
);
125 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
);
129 * Get the number of concurrent channels that the HW can operate, but that are
130 * currently not in use by any of the wpa_supplicant interfaces.
132 static int wpas_p2p_num_unused_channels(struct wpa_supplicant
*wpa_s
)
137 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
, sizeof(int));
141 num
= get_shared_radio_freqs(wpa_s
, freqs
,
142 wpa_s
->num_multichan_concurrent
);
145 unused
= wpa_s
->num_multichan_concurrent
- num
;
146 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: num_unused_channels: %d", unused
);
152 * Get the frequencies that are currently in use by one or more of the virtual
153 * interfaces, and that are also valid for P2P operation.
156 wpas_p2p_valid_oper_freqs(struct wpa_supplicant
*wpa_s
,
157 struct wpa_used_freq_data
*p2p_freqs
,
160 struct wpa_used_freq_data
*freqs
;
161 unsigned int num
, i
, j
;
163 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
164 sizeof(struct wpa_used_freq_data
));
168 num
= get_shared_radio_freqs_data(wpa_s
, freqs
,
169 wpa_s
->num_multichan_concurrent
);
171 os_memset(p2p_freqs
, 0, sizeof(struct wpa_used_freq_data
) * len
);
173 for (i
= 0, j
= 0; i
< num
&& j
< len
; i
++) {
174 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
175 p2p_freqs
[j
++] = freqs
[i
];
180 dump_freq_data(wpa_s
, "valid for P2P", p2p_freqs
, j
);
186 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant
*wpa_s
,
189 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
191 if (wpa_s
->parent
->conf
->p2p_ignore_shared_freq
&&
192 freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
193 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
194 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
198 p2p_set_own_freq_preference(wpa_s
->global
->p2p
, freq
);
202 static void wpas_p2p_scan_res_handler(struct wpa_supplicant
*wpa_s
,
203 struct wpa_scan_results
*scan_res
)
207 if (wpa_s
->p2p_scan_work
) {
208 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
209 wpa_s
->p2p_scan_work
= NULL
;
210 radio_work_done(work
);
213 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
216 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS)",
217 (int) scan_res
->num
);
219 for (i
= 0; i
< scan_res
->num
; i
++) {
220 struct wpa_scan_res
*bss
= scan_res
->res
[i
];
221 struct os_reltime time_tmp_age
, entry_ts
;
225 time_tmp_age
.sec
= bss
->age
/ 1000;
226 time_tmp_age
.usec
= (bss
->age
% 1000) * 1000;
227 os_reltime_sub(&scan_res
->fetch_time
, &time_tmp_age
, &entry_ts
);
229 ies
= (const u8
*) (bss
+ 1);
230 ies_len
= bss
->ie_len
;
231 if (bss
->beacon_ie_len
> 0 &&
232 !wpa_scan_get_vendor_ie(bss
, P2P_IE_VENDOR_TYPE
) &&
233 wpa_scan_get_vendor_ie_beacon(bss
, P2P_IE_VENDOR_TYPE
)) {
234 wpa_printf(MSG_DEBUG
, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
235 MACSTR
, MAC2STR(bss
->bssid
));
237 ies_len
= bss
->beacon_ie_len
;
241 if (p2p_scan_res_handler(wpa_s
->global
->p2p
, bss
->bssid
,
242 bss
->freq
, &entry_ts
, bss
->level
,
247 p2p_scan_res_handled(wpa_s
->global
->p2p
);
251 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work
*work
, int deinit
)
253 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
254 struct wpa_driver_scan_params
*params
= work
->ctx
;
258 if (!work
->started
) {
259 wpa_scan_free_params(params
);
263 wpa_s
->p2p_scan_work
= NULL
;
267 ret
= wpa_drv_scan(wpa_s
, params
);
268 wpa_scan_free_params(params
);
271 radio_work_done(work
);
272 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
276 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
277 os_get_reltime(&wpa_s
->scan_trigger_time
);
278 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_handler
;
279 wpa_s
->own_scan_requested
= 1;
280 wpa_s
->p2p_scan_work
= work
;
284 static int wpas_p2p_search_social_channel(struct wpa_supplicant
*wpa_s
,
287 if (wpa_s
->global
->p2p_24ghz_social_channels
&&
288 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
290 * Search all social channels regardless of whether these have
291 * been disabled for P2P operating channel use to avoid missing
296 return p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
300 static int wpas_p2p_scan(void *ctx
, enum p2p_scan_type type
, int freq
,
301 unsigned int num_req_dev_types
,
302 const u8
*req_dev_types
, const u8
*dev_id
, u16 pw_id
)
304 struct wpa_supplicant
*wpa_s
= ctx
;
305 struct wpa_driver_scan_params
*params
= NULL
;
306 struct wpabuf
*wps_ie
, *ies
;
307 unsigned int num_channels
= 0;
308 int social_channels_freq
[] = { 2412, 2437, 2462, 60480 };
312 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
315 if (wpa_s
->p2p_scan_work
) {
316 wpa_dbg(wpa_s
, MSG_INFO
, "P2P: Reject scan trigger since one is already pending");
320 params
= os_zalloc(sizeof(*params
));
324 /* P2P Wildcard SSID */
325 params
->num_ssids
= 1;
326 n
= os_malloc(P2P_WILDCARD_SSID_LEN
);
329 os_memcpy(n
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
330 params
->ssids
[0].ssid
= n
;
331 params
->ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
333 wpa_s
->wps
->dev
.p2p
= 1;
334 wps_ie
= wps_build_probe_req_ie(pw_id
, &wpa_s
->wps
->dev
,
335 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
,
336 num_req_dev_types
, req_dev_types
);
340 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
341 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
346 wpabuf_put_buf(ies
, wps_ie
);
349 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, dev_id
);
351 params
->p2p_probe
= 1;
352 n
= os_malloc(wpabuf_len(ies
));
357 os_memcpy(n
, wpabuf_head(ies
), wpabuf_len(ies
));
358 params
->extra_ies
= n
;
359 params
->extra_ies_len
= wpabuf_len(ies
);
363 case P2P_SCAN_SOCIAL
:
364 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 1,
366 if (params
->freqs
== NULL
)
368 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
369 if (wpas_p2p_search_social_channel(
370 wpa_s
, social_channels_freq
[i
]))
371 params
->freqs
[num_channels
++] =
372 social_channels_freq
[i
];
374 params
->freqs
[num_channels
++] = 0;
378 case P2P_SCAN_SOCIAL_PLUS_ONE
:
379 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 2,
381 if (params
->freqs
== NULL
)
383 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
384 if (wpas_p2p_search_social_channel(
385 wpa_s
, social_channels_freq
[i
]))
386 params
->freqs
[num_channels
++] =
387 social_channels_freq
[i
];
389 if (p2p_supported_freq(wpa_s
->global
->p2p
, freq
))
390 params
->freqs
[num_channels
++] = freq
;
391 params
->freqs
[num_channels
++] = 0;
395 radio_remove_works(wpa_s
, "p2p-scan", 0);
396 if (radio_add_work(wpa_s
, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb
,
402 wpa_scan_free_params(params
);
407 static enum wpa_driver_if_type
wpas_p2p_if_type(int p2p_group_interface
)
409 switch (p2p_group_interface
) {
410 case P2P_GROUP_INTERFACE_PENDING
:
411 return WPA_IF_P2P_GROUP
;
412 case P2P_GROUP_INTERFACE_GO
:
413 return WPA_IF_P2P_GO
;
414 case P2P_GROUP_INTERFACE_CLIENT
:
415 return WPA_IF_P2P_CLIENT
;
418 return WPA_IF_P2P_GROUP
;
422 static struct wpa_supplicant
* wpas_get_p2p_group(struct wpa_supplicant
*wpa_s
,
424 size_t ssid_len
, int *go
)
428 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
429 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
430 if (s
->disabled
!= 0 || !s
->p2p_group
||
431 s
->ssid_len
!= ssid_len
||
432 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
434 if (s
->mode
== WPAS_MODE_P2P_GO
&&
435 s
!= wpa_s
->current_ssid
)
438 *go
= s
->mode
== WPAS_MODE_P2P_GO
;
447 static void run_wpas_p2p_disconnect(void *eloop_ctx
, void *timeout_ctx
)
449 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
450 wpa_printf(MSG_DEBUG
,
451 "P2P: Complete previously requested removal of %s",
453 wpas_p2p_disconnect(wpa_s
);
457 static int wpas_p2p_disconnect_safely(struct wpa_supplicant
*wpa_s
,
458 struct wpa_supplicant
*calling_wpa_s
)
460 if (calling_wpa_s
== wpa_s
&& wpa_s
&&
461 wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
463 * The calling wpa_s instance is going to be removed. Do that
464 * from an eloop callback to keep the instance available until
465 * the caller has returned. This my be needed, e.g., to provide
466 * control interface responses on the per-interface socket.
468 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect
,
474 return wpas_p2p_disconnect(wpa_s
);
478 static int wpas_p2p_group_delete(struct wpa_supplicant
*wpa_s
,
479 enum p2p_group_removal_reason removal_reason
)
481 struct wpa_ssid
*ssid
;
485 ssid
= wpa_s
->current_ssid
;
488 * The current SSID was not known, but there may still be a
489 * pending P2P group interface waiting for provisioning or a
490 * P2P group that is trying to reconnect.
492 ssid
= wpa_s
->conf
->ssid
;
494 if (ssid
->p2p_group
&& ssid
->disabled
!= 2)
499 wpa_s
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)
501 wpa_printf(MSG_ERROR
, "P2P: P2P group interface "
506 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
)
508 else if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
||
509 (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
)) {
510 wpa_s
->reassociate
= 0;
511 wpa_s
->disconnected
= 1;
516 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
&& ssid
)
517 wpas_notify_p2p_group_removed(wpa_s
, ssid
, gtype
);
519 if (os_strcmp(gtype
, "client") == 0) {
520 wpa_supplicant_deauthenticate(wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
521 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal
,
523 wpa_printf(MSG_DEBUG
,
524 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
525 removal_reason
= P2P_GROUP_REMOVAL_PSK_FAILURE
;
526 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
,
531 if (wpa_s
->cross_connect_in_use
) {
532 wpa_s
->cross_connect_in_use
= 0;
533 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
534 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
535 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
537 switch (removal_reason
) {
538 case P2P_GROUP_REMOVAL_REQUESTED
:
539 reason
= " reason=REQUESTED";
541 case P2P_GROUP_REMOVAL_FORMATION_FAILED
:
542 reason
= " reason=FORMATION_FAILED";
544 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT
:
545 reason
= " reason=IDLE";
547 case P2P_GROUP_REMOVAL_UNAVAILABLE
:
548 reason
= " reason=UNAVAILABLE";
550 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION
:
551 reason
= " reason=GO_ENDING_SESSION";
553 case P2P_GROUP_REMOVAL_PSK_FAILURE
:
554 reason
= " reason=PSK_FAILURE";
556 case P2P_GROUP_REMOVAL_FREQ_CONFLICT
:
557 reason
= " reason=FREQ_CONFLICT";
563 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
) {
564 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
565 P2P_EVENT_GROUP_REMOVED
"%s %s%s",
566 wpa_s
->ifname
, gtype
, reason
);
569 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
) > 0)
570 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group freq_conflict timeout");
571 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
572 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
573 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
574 wpa_s
->parent
, NULL
) > 0) {
575 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group formation "
577 wpa_s
->p2p_in_provisioning
= 0;
580 wpa_s
->p2p_in_invitation
= 0;
583 * Make sure wait for the first client does not remain active after the
584 * group has been removed.
586 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
588 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
589 struct wpa_global
*global
;
591 enum wpa_driver_if_type type
;
592 wpa_printf(MSG_DEBUG
, "P2P: Remove group interface %s",
594 global
= wpa_s
->global
;
595 ifname
= os_strdup(wpa_s
->ifname
);
596 type
= wpas_p2p_if_type(wpa_s
->p2p_group_interface
);
597 eloop_cancel_timeout(run_wpas_p2p_disconnect
, wpa_s
, NULL
);
598 wpa_supplicant_remove_iface(wpa_s
->global
, wpa_s
, 0);
599 wpa_s
= global
->ifaces
;
601 wpa_drv_if_remove(wpa_s
, type
, ifname
);
606 if (!wpa_s
->p2p_go_group_formation_completed
) {
607 wpa_s
->global
->p2p_group_formation
= NULL
;
608 wpa_s
->p2p_in_provisioning
= 0;
611 wpa_s
->show_group_started
= 0;
612 os_free(wpa_s
->go_params
);
613 wpa_s
->go_params
= NULL
;
615 os_free(wpa_s
->p2p_group_common_freqs
);
616 wpa_s
->p2p_group_common_freqs
= NULL
;
617 wpa_s
->p2p_group_common_freqs_num
= 0;
619 wpa_s
->waiting_presence_resp
= 0;
621 wpa_printf(MSG_DEBUG
, "P2P: Remove temporary group network");
622 if (ssid
&& (ssid
->p2p_group
||
623 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
||
624 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
))) {
626 if (ssid
== wpa_s
->current_ssid
) {
627 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
628 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
629 wpa_s
->current_ssid
= NULL
;
632 * Networks objects created during any P2P activities are not
633 * exposed out as they might/will confuse certain non-P2P aware
634 * applications since these network objects won't behave like
637 * Likewise, we don't send out network removed signals for such
640 wpa_config_remove_network(wpa_s
->conf
, id
);
641 wpa_supplicant_clear_status(wpa_s
);
642 wpa_supplicant_cancel_sched_scan(wpa_s
);
644 wpa_printf(MSG_DEBUG
, "P2P: Temporary group network not "
648 wpa_supplicant_ap_deinit(wpa_s
);
650 wpa_drv_deinit_p2p_cli(wpa_s
);
656 static int wpas_p2p_persistent_group(struct wpa_supplicant
*wpa_s
,
658 const u8
*ssid
, size_t ssid_len
)
666 if (wpa_s
->go_params
)
667 bssid
= wpa_s
->go_params
->peer_interface_addr
;
669 bssid
= wpa_s
->bssid
;
671 bss
= wpa_bss_get(wpa_s
, bssid
, ssid
, ssid_len
);
672 if (bss
== NULL
&& wpa_s
->go_params
&&
673 !is_zero_ether_addr(wpa_s
->go_params
->peer_device_addr
))
674 bss
= wpa_bss_get_p2p_dev_addr(
675 wpa_s
, wpa_s
->go_params
->peer_device_addr
);
677 u8 iface_addr
[ETH_ALEN
];
678 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, bssid
,
680 bss
= wpa_bss_get(wpa_s
, iface_addr
, ssid
, ssid_len
);
683 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
684 "group is persistent - BSS " MACSTR
" not found",
689 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
691 p2p
= wpa_bss_get_vendor_ie_multi_beacon(bss
,
694 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
695 "group is persistent - BSS " MACSTR
696 " did not include P2P IE", MAC2STR(bssid
));
697 wpa_hexdump(MSG_DEBUG
, "P2P: Probe Response IEs",
698 (u8
*) (bss
+ 1), bss
->ie_len
);
699 wpa_hexdump(MSG_DEBUG
, "P2P: Beacon IEs",
700 ((u8
*) bss
+ 1) + bss
->ie_len
,
705 group_capab
= p2p_get_group_capab(p2p
);
706 addr
= p2p_get_go_dev_addr(p2p
);
707 wpa_printf(MSG_DEBUG
, "P2P: Checking whether group is persistent: "
708 "group_capab=0x%x", group_capab
);
710 os_memcpy(go_dev_addr
, addr
, ETH_ALEN
);
711 wpa_printf(MSG_DEBUG
, "P2P: GO Device Address " MACSTR
,
714 os_memset(go_dev_addr
, 0, ETH_ALEN
);
717 wpa_printf(MSG_DEBUG
, "P2P: BSS " MACSTR
" group_capab=0x%x "
718 "go_dev_addr=" MACSTR
,
719 MAC2STR(bssid
), group_capab
, MAC2STR(go_dev_addr
));
721 return group_capab
& P2P_GROUP_CAPAB_PERSISTENT_GROUP
;
725 static int wpas_p2p_store_persistent_group(struct wpa_supplicant
*wpa_s
,
726 struct wpa_ssid
*ssid
,
727 const u8
*go_dev_addr
)
732 wpa_printf(MSG_DEBUG
, "P2P: Storing credentials for a persistent "
733 "group (GO Dev Addr " MACSTR
")", MAC2STR(go_dev_addr
));
734 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
735 if (s
->disabled
== 2 &&
736 os_memcmp(go_dev_addr
, s
->bssid
, ETH_ALEN
) == 0 &&
737 s
->ssid_len
== ssid
->ssid_len
&&
738 os_memcmp(ssid
->ssid
, s
->ssid
, ssid
->ssid_len
) == 0)
743 wpa_printf(MSG_DEBUG
, "P2P: Update existing persistent group "
745 if (ssid
->passphrase
&& !s
->passphrase
)
747 else if (ssid
->passphrase
&& s
->passphrase
&&
748 os_strcmp(ssid
->passphrase
, s
->passphrase
) != 0)
751 wpa_printf(MSG_DEBUG
, "P2P: Create a new persistent group "
754 s
= wpa_config_add_network(wpa_s
->conf
);
759 * Instead of network_added we emit persistent_group_added
760 * notification. Also to keep the defense checks in
761 * persistent_group obj registration method, we set the
762 * relevant flags in s to designate it as a persistent group.
765 s
->p2p_persistent_group
= 1;
766 wpas_notify_persistent_group_added(wpa_s
, s
);
767 wpa_config_set_network_defaults(s
);
771 s
->p2p_persistent_group
= 1;
774 os_memcpy(s
->bssid
, go_dev_addr
, ETH_ALEN
);
775 s
->mode
= ssid
->mode
;
776 s
->auth_alg
= WPA_AUTH_ALG_OPEN
;
777 s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
778 s
->proto
= WPA_PROTO_RSN
;
779 s
->pairwise_cipher
= WPA_CIPHER_CCMP
;
781 if (ssid
->passphrase
) {
782 os_free(s
->passphrase
);
783 s
->passphrase
= os_strdup(ssid
->passphrase
);
787 os_memcpy(s
->psk
, ssid
->psk
, 32);
789 if (s
->passphrase
&& !s
->psk_set
)
790 wpa_config_update_psk(s
);
791 if (s
->ssid
== NULL
|| s
->ssid_len
< ssid
->ssid_len
) {
793 s
->ssid
= os_malloc(ssid
->ssid_len
);
796 s
->ssid_len
= ssid
->ssid_len
;
797 os_memcpy(s
->ssid
, ssid
->ssid
, s
->ssid_len
);
799 if (ssid
->mode
== WPAS_MODE_P2P_GO
&& wpa_s
->global
->add_psk
) {
800 dl_list_add(&s
->psk_list
, &wpa_s
->global
->add_psk
->list
);
801 wpa_s
->global
->add_psk
= NULL
;
805 if (changed
&& wpa_s
->conf
->update_config
&&
806 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
)) {
807 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
814 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant
*wpa_s
,
817 struct wpa_ssid
*ssid
, *s
;
822 ssid
= wpa_s
->current_ssid
;
823 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
824 !ssid
->p2p_persistent_group
)
827 for (s
= wpa_s
->parent
->conf
->ssid
; s
; s
= s
->next
) {
828 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
831 if (s
->ssid_len
== ssid
->ssid_len
&&
832 os_memcmp(s
->ssid
, ssid
->ssid
, s
->ssid_len
) == 0)
839 for (i
= 0; s
->p2p_client_list
&& i
< s
->num_p2p_clients
; i
++) {
840 if (os_memcmp(s
->p2p_client_list
+ i
* ETH_ALEN
, addr
,
844 if (i
== s
->num_p2p_clients
- 1)
845 return; /* already the most recent entry */
847 /* move the entry to mark it most recent */
848 os_memmove(s
->p2p_client_list
+ i
* ETH_ALEN
,
849 s
->p2p_client_list
+ (i
+ 1) * ETH_ALEN
,
850 (s
->num_p2p_clients
- i
- 1) * ETH_ALEN
);
851 os_memcpy(s
->p2p_client_list
+
852 (s
->num_p2p_clients
- 1) * ETH_ALEN
, addr
, ETH_ALEN
);
857 if (!found
&& s
->num_p2p_clients
< P2P_MAX_STORED_CLIENTS
) {
858 n
= os_realloc_array(s
->p2p_client_list
,
859 s
->num_p2p_clients
+ 1, ETH_ALEN
);
862 os_memcpy(n
+ s
->num_p2p_clients
* ETH_ALEN
, addr
, ETH_ALEN
);
863 s
->p2p_client_list
= n
;
864 s
->num_p2p_clients
++;
865 } else if (!found
&& s
->p2p_client_list
) {
866 /* Not enough room for an additional entry - drop the oldest
868 os_memmove(s
->p2p_client_list
,
869 s
->p2p_client_list
+ ETH_ALEN
,
870 (s
->num_p2p_clients
- 1) * ETH_ALEN
);
871 os_memcpy(s
->p2p_client_list
+
872 (s
->num_p2p_clients
- 1) * ETH_ALEN
,
876 if (wpa_s
->parent
->conf
->update_config
&&
877 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
878 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
882 static void wpas_p2p_group_started(struct wpa_supplicant
*wpa_s
,
883 int go
, struct wpa_ssid
*ssid
, int freq
,
884 const u8
*psk
, const char *passphrase
,
885 const u8
*go_dev_addr
, int persistent
,
888 const char *ssid_txt
;
892 wpa_snprintf_hex(psk_txt
, sizeof(psk_txt
), psk
, 32);
897 ssid_txt
= wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
);
901 if (passphrase
&& passphrase
[0] == '\0')
905 * Include PSK/passphrase only in the control interface message and
906 * leave it out from the debug log entry.
908 wpa_msg_global_ctrl(wpa_s
->parent
, MSG_INFO
,
909 P2P_EVENT_GROUP_STARTED
910 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
912 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
913 psk
? " psk=" : "", psk_txt
,
914 passphrase
? " passphrase=\"" : "",
915 passphrase
? passphrase
: "",
916 passphrase
? "\"" : "",
917 MAC2STR(go_dev_addr
),
918 persistent
? " [PERSISTENT]" : "", extra
);
919 wpa_printf(MSG_INFO
, P2P_EVENT_GROUP_STARTED
920 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR
"%s%s",
921 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
922 MAC2STR(go_dev_addr
), persistent
? " [PERSISTENT]" : "",
927 static void wpas_group_formation_completed(struct wpa_supplicant
*wpa_s
,
930 struct wpa_ssid
*ssid
;
933 u8 go_dev_addr
[ETH_ALEN
];
937 * This callback is likely called for the main interface. Update wpa_s
938 * to use the group interface if a new interface was created for the
941 if (wpa_s
->global
->p2p_group_formation
)
942 wpa_s
= wpa_s
->global
->p2p_group_formation
;
943 if (wpa_s
->p2p_go_group_formation_completed
) {
944 wpa_s
->global
->p2p_group_formation
= NULL
;
945 wpa_s
->p2p_in_provisioning
= 0;
947 wpa_s
->p2p_in_invitation
= 0;
948 wpa_s
->group_formation_reported
= 1;
951 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
952 P2P_EVENT_GROUP_FORMATION_FAILURE
);
953 wpas_p2p_group_delete(wpa_s
,
954 P2P_GROUP_REMOVAL_FORMATION_FAILED
);
958 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
959 P2P_EVENT_GROUP_FORMATION_SUCCESS
);
961 ssid
= wpa_s
->current_ssid
;
962 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
963 ssid
->mode
= WPAS_MODE_P2P_GO
;
964 p2p_group_notif_formation_done(wpa_s
->p2p_group
);
965 wpa_supplicant_ap_mac_addr_filter(wpa_s
, NULL
);
970 client
= ssid
->mode
== WPAS_MODE_INFRA
;
971 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
972 persistent
= ssid
->p2p_persistent_group
;
973 os_memcpy(go_dev_addr
, wpa_s
->global
->p2p_dev_addr
,
976 persistent
= wpas_p2p_persistent_group(wpa_s
,
981 client
= wpa_s
->p2p_group_interface
==
982 P2P_GROUP_INTERFACE_CLIENT
;
983 os_memset(go_dev_addr
, 0, ETH_ALEN
);
986 wpa_s
->show_group_started
= 0;
989 * Indicate event only after successfully completed 4-way
990 * handshake, i.e., when the interface is ready for data
993 wpa_s
->show_group_started
= 1;
995 wpas_p2p_group_started(wpa_s
, 1, ssid
,
996 ssid
? ssid
->frequency
: 0,
997 ssid
&& ssid
->passphrase
== NULL
&&
998 ssid
->psk_set
? ssid
->psk
: NULL
,
999 ssid
? ssid
->passphrase
: NULL
,
1000 go_dev_addr
, persistent
, "");
1001 wpas_p2p_cross_connect_setup(wpa_s
);
1002 wpas_p2p_set_group_idle_timeout(wpa_s
);
1006 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
1009 os_free(wpa_s
->global
->add_psk
);
1010 wpa_s
->global
->add_psk
= NULL
;
1012 if (network_id
< 0 && ssid
)
1013 network_id
= ssid
->id
;
1015 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1016 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1021 struct send_action_work
{
1027 unsigned int wait_time
;
1032 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx
,
1035 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
1037 if (!wpa_s
->p2p_send_action_work
)
1040 wpa_printf(MSG_DEBUG
, "P2P: Send Action frame radio work timed out");
1041 os_free(wpa_s
->p2p_send_action_work
->ctx
);
1042 radio_work_done(wpa_s
->p2p_send_action_work
);
1043 wpa_s
->p2p_send_action_work
= NULL
;
1047 static void wpas_p2p_action_tx_clear(struct wpa_supplicant
*wpa_s
)
1049 if (wpa_s
->p2p_send_action_work
) {
1050 struct send_action_work
*awork
;
1051 awork
= wpa_s
->p2p_send_action_work
->ctx
;
1052 if (awork
->wait_time
== 0) {
1054 radio_work_done(wpa_s
->p2p_send_action_work
);
1055 wpa_s
->p2p_send_action_work
= NULL
;
1058 * In theory, this should not be needed, but number of
1059 * places in the P2P code is still using non-zero wait
1060 * time for the last Action frame in the sequence and
1061 * some of these do not call send_action_done().
1063 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1065 eloop_register_timeout(
1066 0, awork
->wait_time
* 1000,
1067 wpas_p2p_send_action_work_timeout
,
1074 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant
*wpa_s
,
1076 const u8
*dst
, const u8
*src
,
1078 const u8
*data
, size_t data_len
,
1079 enum offchannel_send_action_result
1082 enum p2p_send_action_result res
= P2P_SEND_ACTION_SUCCESS
;
1084 wpas_p2p_action_tx_clear(wpa_s
);
1086 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
1090 case OFFCHANNEL_SEND_ACTION_SUCCESS
:
1091 res
= P2P_SEND_ACTION_SUCCESS
;
1093 case OFFCHANNEL_SEND_ACTION_NO_ACK
:
1094 res
= P2P_SEND_ACTION_NO_ACK
;
1096 case OFFCHANNEL_SEND_ACTION_FAILED
:
1097 res
= P2P_SEND_ACTION_FAILED
;
1101 p2p_send_action_cb(wpa_s
->global
->p2p
, freq
, dst
, src
, bssid
, res
);
1103 if (result
!= OFFCHANNEL_SEND_ACTION_SUCCESS
&&
1104 wpa_s
->pending_pd_before_join
&&
1105 (os_memcmp(dst
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
1106 os_memcmp(dst
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0) &&
1107 wpa_s
->p2p_fallback_to_go_neg
) {
1108 wpa_s
->pending_pd_before_join
= 0;
1109 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No ACK for PD Req "
1110 "during p2p_connect-auto");
1111 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
1117 static void wpas_send_action_cb(struct wpa_radio_work
*work
, int deinit
)
1119 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
1120 struct send_action_work
*awork
= work
->ctx
;
1123 if (work
->started
) {
1124 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1126 wpa_s
->p2p_send_action_work
= NULL
;
1127 offchannel_send_action_done(wpa_s
);
1133 if (offchannel_send_action(wpa_s
, awork
->freq
, awork
->dst
, awork
->src
,
1134 awork
->bssid
, awork
->buf
, awork
->len
,
1136 wpas_p2p_send_action_tx_status
, 1) < 0) {
1138 radio_work_done(work
);
1141 wpa_s
->p2p_send_action_work
= work
;
1145 static int wpas_send_action_work(struct wpa_supplicant
*wpa_s
,
1146 unsigned int freq
, const u8
*dst
,
1147 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1148 size_t len
, unsigned int wait_time
)
1150 struct send_action_work
*awork
;
1152 if (wpa_s
->p2p_send_action_work
) {
1153 wpa_printf(MSG_DEBUG
, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1157 awork
= os_zalloc(sizeof(*awork
) + len
);
1162 os_memcpy(awork
->dst
, dst
, ETH_ALEN
);
1163 os_memcpy(awork
->src
, src
, ETH_ALEN
);
1164 os_memcpy(awork
->bssid
, bssid
, ETH_ALEN
);
1166 awork
->wait_time
= wait_time
;
1167 os_memcpy(awork
->buf
, buf
, len
);
1169 if (radio_add_work(wpa_s
, freq
, "p2p-send-action", 0,
1170 wpas_send_action_cb
, awork
) < 0) {
1179 static int wpas_send_action(void *ctx
, unsigned int freq
, const u8
*dst
,
1180 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1181 size_t len
, unsigned int wait_time
)
1183 struct wpa_supplicant
*wpa_s
= ctx
;
1184 int listen_freq
= -1, send_freq
= -1;
1186 if (wpa_s
->p2p_listen_work
)
1187 listen_freq
= wpa_s
->p2p_listen_work
->freq
;
1188 if (wpa_s
->p2p_send_action_work
)
1189 send_freq
= wpa_s
->p2p_send_action_work
->freq
;
1190 if (listen_freq
!= (int) freq
&& send_freq
!= (int) freq
) {
1191 wpa_printf(MSG_DEBUG
, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1192 listen_freq
, send_freq
);
1193 return wpas_send_action_work(wpa_s
, freq
, dst
, src
, bssid
, buf
,
1197 wpa_printf(MSG_DEBUG
, "P2P: Use ongoing radio work for Action frame TX");
1198 return offchannel_send_action(wpa_s
, freq
, dst
, src
, bssid
, buf
, len
,
1200 wpas_p2p_send_action_tx_status
, 1);
1204 static void wpas_send_action_done(void *ctx
)
1206 struct wpa_supplicant
*wpa_s
= ctx
;
1208 if (wpa_s
->p2p_send_action_work
) {
1209 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1211 os_free(wpa_s
->p2p_send_action_work
->ctx
);
1212 radio_work_done(wpa_s
->p2p_send_action_work
);
1213 wpa_s
->p2p_send_action_work
= NULL
;
1216 offchannel_send_action_done(wpa_s
);
1220 static int wpas_copy_go_neg_results(struct wpa_supplicant
*wpa_s
,
1221 struct p2p_go_neg_results
*params
)
1223 if (wpa_s
->go_params
== NULL
) {
1224 wpa_s
->go_params
= os_malloc(sizeof(*params
));
1225 if (wpa_s
->go_params
== NULL
)
1228 os_memcpy(wpa_s
->go_params
, params
, sizeof(*params
));
1233 static void wpas_start_wps_enrollee(struct wpa_supplicant
*wpa_s
,
1234 struct p2p_go_neg_results
*res
)
1236 wpa_s
->group_formation_reported
= 0;
1237 wpa_printf(MSG_DEBUG
, "P2P: Start WPS Enrollee for peer " MACSTR
1238 " dev_addr " MACSTR
" wps_method %d",
1239 MAC2STR(res
->peer_interface_addr
),
1240 MAC2STR(res
->peer_device_addr
), res
->wps_method
);
1241 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Start WPS Enrollee for SSID",
1242 res
->ssid
, res
->ssid_len
);
1243 wpa_supplicant_ap_deinit(wpa_s
);
1244 wpas_copy_go_neg_results(wpa_s
, res
);
1245 if (res
->wps_method
== WPS_PBC
) {
1246 wpas_wps_start_pbc(wpa_s
, res
->peer_interface_addr
, 1);
1247 #ifdef CONFIG_WPS_NFC
1248 } else if (res
->wps_method
== WPS_NFC
) {
1249 wpas_wps_start_nfc(wpa_s
, res
->peer_device_addr
,
1250 res
->peer_interface_addr
,
1251 wpa_s
->parent
->p2p_oob_dev_pw
,
1252 wpa_s
->parent
->p2p_oob_dev_pw_id
, 1,
1253 wpa_s
->parent
->p2p_oob_dev_pw_id
==
1254 DEV_PW_NFC_CONNECTION_HANDOVER
?
1255 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
:
1258 #endif /* CONFIG_WPS_NFC */
1260 u16 dev_pw_id
= DEV_PW_DEFAULT
;
1261 if (wpa_s
->p2p_wps_method
== WPS_PIN_KEYPAD
)
1262 dev_pw_id
= DEV_PW_REGISTRAR_SPECIFIED
;
1263 wpas_wps_start_pin(wpa_s
, res
->peer_interface_addr
,
1264 wpa_s
->p2p_pin
, 1, dev_pw_id
);
1269 static void wpas_p2p_add_psk_list(struct wpa_supplicant
*wpa_s
,
1270 struct wpa_ssid
*ssid
)
1272 struct wpa_ssid
*persistent
;
1273 struct psk_list_entry
*psk
;
1274 struct hostapd_data
*hapd
;
1276 if (!wpa_s
->ap_iface
)
1279 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
1281 if (persistent
== NULL
)
1284 hapd
= wpa_s
->ap_iface
->bss
[0];
1286 dl_list_for_each(psk
, &persistent
->psk_list
, struct psk_list_entry
,
1288 struct hostapd_wpa_psk
*hpsk
;
1290 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add persistent group PSK entry for "
1292 MAC2STR(psk
->addr
), psk
->p2p
);
1293 hpsk
= os_zalloc(sizeof(*hpsk
));
1296 os_memcpy(hpsk
->psk
, psk
->psk
, PMK_LEN
);
1298 os_memcpy(hpsk
->p2p_dev_addr
, psk
->addr
, ETH_ALEN
);
1300 os_memcpy(hpsk
->addr
, psk
->addr
, ETH_ALEN
);
1301 hpsk
->next
= hapd
->conf
->ssid
.wpa_psk
;
1302 hapd
->conf
->ssid
.wpa_psk
= hpsk
;
1307 static void p2p_go_dump_common_freqs(struct wpa_supplicant
*wpa_s
)
1311 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Common group frequencies (len=%u):",
1312 wpa_s
->p2p_group_common_freqs_num
);
1314 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++)
1315 wpa_dbg(wpa_s
, MSG_DEBUG
, "freq[%u]: %d",
1316 i
, wpa_s
->p2p_group_common_freqs
[i
]);
1320 static void p2p_go_save_group_common_freqs(struct wpa_supplicant
*wpa_s
,
1321 struct p2p_go_neg_results
*params
)
1323 unsigned int i
, len
= int_array_len(wpa_s
->go_params
->freq_list
);
1325 wpa_s
->p2p_group_common_freqs_num
= 0;
1326 os_free(wpa_s
->p2p_group_common_freqs
);
1327 wpa_s
->p2p_group_common_freqs
= os_calloc(len
, sizeof(int));
1328 if (!wpa_s
->p2p_group_common_freqs
)
1331 for (i
= 0; i
< len
; i
++) {
1332 if (!wpa_s
->go_params
->freq_list
[i
])
1334 wpa_s
->p2p_group_common_freqs
[i
] =
1335 wpa_s
->go_params
->freq_list
[i
];
1337 wpa_s
->p2p_group_common_freqs_num
= i
;
1341 static void p2p_go_configured(void *ctx
, void *data
)
1343 struct wpa_supplicant
*wpa_s
= ctx
;
1344 struct p2p_go_neg_results
*params
= data
;
1345 struct wpa_ssid
*ssid
;
1346 int network_id
= -1;
1348 p2p_go_save_group_common_freqs(wpa_s
, params
);
1349 p2p_go_dump_common_freqs(wpa_s
);
1351 ssid
= wpa_s
->current_ssid
;
1352 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GO
) {
1353 wpa_printf(MSG_DEBUG
, "P2P: Group setup without provisioning");
1354 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
1355 wpa_s
->global
->p2p_group_formation
= NULL
;
1356 wpas_p2p_group_started(wpa_s
, 1, ssid
, ssid
->frequency
,
1357 params
->passphrase
[0] == '\0' ?
1360 wpa_s
->global
->p2p_dev_addr
,
1361 params
->persistent_group
, "");
1362 wpa_s
->group_formation_reported
= 1;
1364 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1365 if (params
->persistent_group
) {
1366 network_id
= wpas_p2p_store_persistent_group(
1367 wpa_s
->parent
, ssid
,
1368 wpa_s
->global
->p2p_dev_addr
);
1369 wpas_p2p_add_psk_list(wpa_s
, ssid
);
1372 network_id
= ssid
->id
;
1373 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1374 wpas_p2p_cross_connect_setup(wpa_s
);
1375 wpas_p2p_set_group_idle_timeout(wpa_s
);
1377 if (wpa_s
->p2p_first_connection_timeout
) {
1378 wpa_dbg(wpa_s
, MSG_DEBUG
,
1379 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1380 wpa_s
->p2p_first_connection_timeout
);
1381 wpa_s
->p2p_go_group_formation_completed
= 0;
1382 wpa_s
->global
->p2p_group_formation
= wpa_s
;
1383 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1384 wpa_s
->parent
, NULL
);
1385 eloop_register_timeout(
1386 wpa_s
->p2p_first_connection_timeout
, 0,
1387 wpas_p2p_group_formation_timeout
,
1388 wpa_s
->parent
, NULL
);
1394 wpa_printf(MSG_DEBUG
, "P2P: Setting up WPS for GO provisioning");
1395 if (wpa_supplicant_ap_mac_addr_filter(wpa_s
,
1396 params
->peer_interface_addr
)) {
1397 wpa_printf(MSG_DEBUG
, "P2P: Failed to setup MAC address "
1401 if (params
->wps_method
== WPS_PBC
) {
1402 wpa_supplicant_ap_wps_pbc(wpa_s
, params
->peer_interface_addr
,
1403 params
->peer_device_addr
);
1404 #ifdef CONFIG_WPS_NFC
1405 } else if (params
->wps_method
== WPS_NFC
) {
1406 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
1407 DEV_PW_NFC_CONNECTION_HANDOVER
&&
1408 !wpa_s
->parent
->p2p_oob_dev_pw
) {
1409 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
1412 wpas_ap_wps_add_nfc_pw(
1413 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
1414 wpa_s
->parent
->p2p_oob_dev_pw
,
1415 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
1416 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
1417 #endif /* CONFIG_WPS_NFC */
1418 } else if (wpa_s
->p2p_pin
[0])
1419 wpa_supplicant_ap_wps_pin(wpa_s
, params
->peer_interface_addr
,
1420 wpa_s
->p2p_pin
, NULL
, 0, 0);
1421 os_free(wpa_s
->go_params
);
1422 wpa_s
->go_params
= NULL
;
1426 static void wpas_start_wps_go(struct wpa_supplicant
*wpa_s
,
1427 struct p2p_go_neg_results
*params
,
1428 int group_formation
)
1430 struct wpa_ssid
*ssid
;
1432 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Starting GO");
1433 if (wpas_copy_go_neg_results(wpa_s
, params
) < 0) {
1434 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not copy GO Negotiation "
1439 ssid
= wpa_config_add_network(wpa_s
->conf
);
1441 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not add network for GO");
1445 wpa_s
->show_group_started
= 0;
1446 wpa_s
->p2p_go_group_formation_completed
= 0;
1447 wpa_s
->group_formation_reported
= 0;
1449 wpa_config_set_network_defaults(ssid
);
1450 ssid
->temporary
= 1;
1451 ssid
->p2p_group
= 1;
1452 ssid
->p2p_persistent_group
= params
->persistent_group
;
1453 ssid
->mode
= group_formation
? WPAS_MODE_P2P_GROUP_FORMATION
:
1455 ssid
->frequency
= params
->freq
;
1456 ssid
->ht40
= params
->ht40
;
1457 ssid
->vht
= params
->vht
;
1458 ssid
->ssid
= os_zalloc(params
->ssid_len
+ 1);
1460 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
1461 ssid
->ssid_len
= params
->ssid_len
;
1463 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
1464 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1465 ssid
->proto
= WPA_PROTO_RSN
;
1466 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1467 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
1468 if (params
->freq
> 56160) {
1470 * Enable GCMP instead of CCMP as pairwise_cipher and
1471 * group_cipher in 60 GHz.
1473 ssid
->pairwise_cipher
= WPA_CIPHER_GCMP
;
1474 ssid
->group_cipher
= WPA_CIPHER_GCMP
;
1476 if (os_strlen(params
->passphrase
) > 0) {
1477 ssid
->passphrase
= os_strdup(params
->passphrase
);
1478 if (ssid
->passphrase
== NULL
) {
1479 wpa_msg_global(wpa_s
, MSG_ERROR
,
1480 "P2P: Failed to copy passphrase for GO");
1481 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1485 ssid
->passphrase
= NULL
;
1486 ssid
->psk_set
= params
->psk_set
;
1488 os_memcpy(ssid
->psk
, params
->psk
, sizeof(ssid
->psk
));
1489 else if (ssid
->passphrase
)
1490 wpa_config_update_psk(ssid
);
1491 ssid
->ap_max_inactivity
= wpa_s
->parent
->conf
->p2p_go_max_inactivity
;
1493 wpa_s
->ap_configured_cb
= p2p_go_configured
;
1494 wpa_s
->ap_configured_cb_ctx
= wpa_s
;
1495 wpa_s
->ap_configured_cb_data
= wpa_s
->go_params
;
1496 wpa_s
->scan_req
= NORMAL_SCAN_REQ
;
1497 wpa_s
->connect_without_scan
= ssid
;
1498 wpa_s
->reassociate
= 1;
1499 wpa_s
->disconnected
= 0;
1500 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Request scan (that will be skipped) to "
1502 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1506 static void wpas_p2p_clone_config(struct wpa_supplicant
*dst
,
1507 const struct wpa_supplicant
*src
)
1509 struct wpa_config
*d
;
1510 const struct wpa_config
*s
;
1515 #define C(n) if (s->n) d->n = os_strdup(s->n)
1524 os_memcpy(d
->device_type
, s
->device_type
, WPS_DEV_TYPE_LEN
);
1525 os_memcpy(d
->sec_device_type
, s
->sec_device_type
,
1526 sizeof(d
->sec_device_type
));
1527 d
->num_sec_device_types
= s
->num_sec_device_types
;
1529 d
->p2p_group_idle
= s
->p2p_group_idle
;
1530 d
->p2p_intra_bss
= s
->p2p_intra_bss
;
1531 d
->persistent_reconnect
= s
->persistent_reconnect
;
1532 d
->max_num_sta
= s
->max_num_sta
;
1533 d
->pbc_in_m1
= s
->pbc_in_m1
;
1534 d
->ignore_old_scan_res
= s
->ignore_old_scan_res
;
1535 d
->beacon_int
= s
->beacon_int
;
1536 d
->dtim_period
= s
->dtim_period
;
1537 d
->disassoc_low_ack
= s
->disassoc_low_ack
;
1538 d
->disable_scan_offload
= s
->disable_scan_offload
;
1540 if (s
->wps_nfc_dh_privkey
&& s
->wps_nfc_dh_pubkey
) {
1541 d
->wps_nfc_dh_privkey
= wpabuf_dup(s
->wps_nfc_dh_privkey
);
1542 d
->wps_nfc_dh_pubkey
= wpabuf_dup(s
->wps_nfc_dh_pubkey
);
1547 static void wpas_p2p_get_group_ifname(struct wpa_supplicant
*wpa_s
,
1548 char *ifname
, size_t len
)
1550 char *ifname_ptr
= wpa_s
->ifname
;
1552 if (os_strncmp(wpa_s
->ifname
, P2P_MGMT_DEVICE_PREFIX
,
1553 os_strlen(P2P_MGMT_DEVICE_PREFIX
)) == 0) {
1554 ifname_ptr
= os_strrchr(wpa_s
->ifname
, '-') + 1;
1557 os_snprintf(ifname
, len
, "p2p-%s-%d", ifname_ptr
, wpa_s
->p2p_group_idx
);
1558 if (os_strlen(ifname
) >= IFNAMSIZ
&&
1559 os_strlen(wpa_s
->ifname
) < IFNAMSIZ
) {
1562 /* Try to avoid going over the IFNAMSIZ length limit */
1563 res
= os_snprintf(ifname
, len
, "p2p-%d", wpa_s
->p2p_group_idx
);
1564 if (os_snprintf_error(len
, res
) && len
)
1565 ifname
[len
- 1] = '\0';
1570 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
1571 enum wpa_driver_if_type type
)
1573 char ifname
[120], force_ifname
[120];
1575 if (wpa_s
->pending_interface_name
[0]) {
1576 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual interface exists "
1577 "- skip creation of a new one");
1578 if (is_zero_ether_addr(wpa_s
->pending_interface_addr
)) {
1579 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual address "
1580 "unknown?! ifname='%s'",
1581 wpa_s
->pending_interface_name
);
1587 wpas_p2p_get_group_ifname(wpa_s
, ifname
, sizeof(ifname
));
1588 force_ifname
[0] = '\0';
1590 wpa_printf(MSG_DEBUG
, "P2P: Create a new interface %s for the group",
1592 wpa_s
->p2p_group_idx
++;
1594 wpa_s
->pending_interface_type
= type
;
1595 if (wpa_drv_if_add(wpa_s
, type
, ifname
, NULL
, NULL
, force_ifname
,
1596 wpa_s
->pending_interface_addr
, NULL
) < 0) {
1597 wpa_printf(MSG_ERROR
, "P2P: Failed to create new group "
1602 if (force_ifname
[0]) {
1603 wpa_printf(MSG_DEBUG
, "P2P: Driver forced interface name %s",
1605 os_strlcpy(wpa_s
->pending_interface_name
, force_ifname
,
1606 sizeof(wpa_s
->pending_interface_name
));
1608 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
1609 sizeof(wpa_s
->pending_interface_name
));
1610 wpa_printf(MSG_DEBUG
, "P2P: Created pending virtual interface %s addr "
1611 MACSTR
, wpa_s
->pending_interface_name
,
1612 MAC2STR(wpa_s
->pending_interface_addr
));
1618 static void wpas_p2p_remove_pending_group_interface(
1619 struct wpa_supplicant
*wpa_s
)
1621 if (!wpa_s
->pending_interface_name
[0] ||
1622 is_zero_ether_addr(wpa_s
->pending_interface_addr
))
1623 return; /* No pending virtual interface */
1625 wpa_printf(MSG_DEBUG
, "P2P: Removing pending group interface %s",
1626 wpa_s
->pending_interface_name
);
1627 wpa_drv_if_remove(wpa_s
, wpa_s
->pending_interface_type
,
1628 wpa_s
->pending_interface_name
);
1629 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
1630 wpa_s
->pending_interface_name
[0] = '\0';
1634 static struct wpa_supplicant
*
1635 wpas_p2p_init_group_interface(struct wpa_supplicant
*wpa_s
, int go
)
1637 struct wpa_interface iface
;
1638 struct wpa_supplicant
*group_wpa_s
;
1640 if (!wpa_s
->pending_interface_name
[0]) {
1641 wpa_printf(MSG_ERROR
, "P2P: No pending group interface");
1642 if (!wpas_p2p_create_iface(wpa_s
))
1645 * Something has forced us to remove the pending interface; try
1646 * to create a new one and hope for the best that we will get
1647 * the same local address.
1649 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
1650 WPA_IF_P2P_CLIENT
) < 0)
1654 os_memset(&iface
, 0, sizeof(iface
));
1655 iface
.ifname
= wpa_s
->pending_interface_name
;
1656 iface
.driver
= wpa_s
->driver
->name
;
1657 if (wpa_s
->conf
->ctrl_interface
== NULL
&&
1658 wpa_s
->parent
!= wpa_s
&&
1660 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
))
1661 iface
.ctrl_interface
= wpa_s
->parent
->conf
->ctrl_interface
;
1663 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
1664 iface
.driver_param
= wpa_s
->conf
->driver_param
;
1665 group_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
);
1666 if (group_wpa_s
== NULL
) {
1667 wpa_printf(MSG_ERROR
, "P2P: Failed to create new "
1668 "wpa_supplicant interface");
1671 wpa_s
->pending_interface_name
[0] = '\0';
1672 group_wpa_s
->parent
= wpa_s
;
1673 group_wpa_s
->p2p_group_interface
= go
? P2P_GROUP_INTERFACE_GO
:
1674 P2P_GROUP_INTERFACE_CLIENT
;
1675 wpa_s
->global
->p2p_group_formation
= group_wpa_s
;
1677 wpas_p2p_clone_config(group_wpa_s
, wpa_s
);
1683 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
1686 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
1687 wpa_printf(MSG_DEBUG
, "P2P: Group Formation timed out");
1688 wpas_p2p_group_formation_failed(wpa_s
);
1692 void wpas_p2p_group_formation_failed(struct wpa_supplicant
*wpa_s
)
1694 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1695 wpa_s
->parent
, NULL
);
1696 if (wpa_s
->global
->p2p
)
1697 p2p_group_formation_failed(wpa_s
->global
->p2p
);
1698 wpas_group_formation_completed(wpa_s
, 0);
1702 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant
*wpa_s
)
1704 wpa_printf(MSG_DEBUG
, "P2P: Reject group formation due to WPS provisioning failure");
1705 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1706 wpa_s
->parent
, NULL
);
1707 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
1708 wpa_s
->parent
, NULL
);
1709 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
1713 void wpas_p2p_ap_setup_failed(struct wpa_supplicant
*wpa_s
)
1715 if (wpa_s
->global
->p2p_group_formation
!= wpa_s
)
1717 /* Speed up group formation timeout since this cannot succeed */
1718 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1719 wpa_s
->parent
, NULL
);
1720 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
1721 wpa_s
->parent
, NULL
);
1725 static void wpas_go_neg_completed(void *ctx
, struct p2p_go_neg_results
*res
)
1727 struct wpa_supplicant
*wpa_s
= ctx
;
1729 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
1730 wpa_drv_cancel_remain_on_channel(wpa_s
);
1731 wpa_s
->off_channel_freq
= 0;
1732 wpa_s
->roc_waiting_drv_freq
= 0;
1736 wpa_msg_global(wpa_s
, MSG_INFO
,
1737 P2P_EVENT_GO_NEG_FAILURE
"status=%d",
1739 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
1740 wpas_p2p_remove_pending_group_interface(wpa_s
);
1744 if (wpa_s
->p2p_go_ht40
)
1746 if (wpa_s
->p2p_go_vht
)
1749 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_SUCCESS
"role=%s "
1750 "freq=%d ht40=%d peer_dev=" MACSTR
" peer_iface=" MACSTR
1752 res
->role_go
? "GO" : "client", res
->freq
, res
->ht40
,
1753 MAC2STR(res
->peer_device_addr
),
1754 MAC2STR(res
->peer_interface_addr
),
1755 p2p_wps_method_text(res
->wps_method
));
1756 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
1758 if (res
->role_go
&& wpa_s
->p2p_persistent_id
>= 0) {
1759 struct wpa_ssid
*ssid
;
1760 ssid
= wpa_config_get_network(wpa_s
->conf
,
1761 wpa_s
->p2p_persistent_id
);
1762 if (ssid
&& ssid
->disabled
== 2 &&
1763 ssid
->mode
== WPAS_MODE_P2P_GO
&& ssid
->passphrase
) {
1764 size_t len
= os_strlen(ssid
->passphrase
);
1765 wpa_printf(MSG_DEBUG
, "P2P: Override passphrase based "
1766 "on requested persistent group");
1767 os_memcpy(res
->passphrase
, ssid
->passphrase
, len
);
1768 res
->passphrase
[len
] = '\0';
1772 if (wpa_s
->create_p2p_iface
) {
1773 struct wpa_supplicant
*group_wpa_s
=
1774 wpas_p2p_init_group_interface(wpa_s
, res
->role_go
);
1775 if (group_wpa_s
== NULL
) {
1776 wpas_p2p_remove_pending_group_interface(wpa_s
);
1777 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
,
1779 wpas_p2p_group_formation_failed(wpa_s
);
1782 if (group_wpa_s
!= wpa_s
) {
1783 os_memcpy(group_wpa_s
->p2p_pin
, wpa_s
->p2p_pin
,
1784 sizeof(group_wpa_s
->p2p_pin
));
1785 group_wpa_s
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
1787 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
1788 wpa_s
->pending_interface_name
[0] = '\0';
1789 group_wpa_s
->p2p_in_provisioning
= 1;
1792 wpas_start_wps_go(group_wpa_s
, res
, 1);
1794 wpas_start_wps_enrollee(group_wpa_s
, res
);
1796 wpa_s
->p2p_in_provisioning
= 1;
1797 wpa_s
->global
->p2p_group_formation
= wpa_s
;
1800 wpas_start_wps_go(wpa_s
, res
, 1);
1802 wpas_start_wps_enrollee(ctx
, res
);
1805 wpa_s
->p2p_long_listen
= 0;
1806 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
1808 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
1809 eloop_register_timeout(15 + res
->peer_config_timeout
/ 100,
1810 (res
->peer_config_timeout
% 100) * 10000,
1811 wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
1815 static void wpas_go_neg_req_rx(void *ctx
, const u8
*src
, u16 dev_passwd_id
)
1817 struct wpa_supplicant
*wpa_s
= ctx
;
1818 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_REQUEST MACSTR
1819 " dev_passwd_id=%u", MAC2STR(src
), dev_passwd_id
);
1821 wpas_notify_p2p_go_neg_req(wpa_s
, src
, dev_passwd_id
);
1825 static void wpas_dev_found(void *ctx
, const u8
*addr
,
1826 const struct p2p_peer_info
*info
,
1829 #ifndef CONFIG_NO_STDOUT_DEBUG
1830 struct wpa_supplicant
*wpa_s
= ctx
;
1831 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
1832 char *wfd_dev_info_hex
= NULL
;
1834 #ifdef CONFIG_WIFI_DISPLAY
1835 wfd_dev_info_hex
= wifi_display_subelem_hex(info
->wfd_subelems
,
1836 WFD_SUBELEM_DEVICE_INFO
);
1837 #endif /* CONFIG_WIFI_DISPLAY */
1839 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_FOUND MACSTR
1840 " p2p_dev_addr=" MACSTR
1841 " pri_dev_type=%s name='%s' config_methods=0x%x "
1842 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
1843 MAC2STR(addr
), MAC2STR(info
->p2p_device_addr
),
1844 wps_dev_type_bin2str(info
->pri_dev_type
, devtype
,
1846 info
->device_name
, info
->config_methods
,
1847 info
->dev_capab
, info
->group_capab
,
1848 wfd_dev_info_hex
? " wfd_dev_info=0x" : "",
1849 wfd_dev_info_hex
? wfd_dev_info_hex
: "",
1850 info
->vendor_elems
? " vendor_elems=1" : "",
1853 os_free(wfd_dev_info_hex
);
1854 #endif /* CONFIG_NO_STDOUT_DEBUG */
1856 wpas_notify_p2p_device_found(ctx
, info
->p2p_device_addr
, new_device
);
1860 static void wpas_dev_lost(void *ctx
, const u8
*dev_addr
)
1862 struct wpa_supplicant
*wpa_s
= ctx
;
1864 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_LOST
1865 "p2p_dev_addr=" MACSTR
, MAC2STR(dev_addr
));
1867 wpas_notify_p2p_device_lost(wpa_s
, dev_addr
);
1871 static void wpas_find_stopped(void *ctx
)
1873 struct wpa_supplicant
*wpa_s
= ctx
;
1874 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_FIND_STOPPED
);
1878 struct wpas_p2p_listen_work
{
1880 unsigned int duration
;
1881 struct wpabuf
*probe_resp_ie
;
1885 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work
*lwork
)
1889 wpabuf_free(lwork
->probe_resp_ie
);
1894 static void wpas_p2p_listen_work_done(struct wpa_supplicant
*wpa_s
)
1896 struct wpas_p2p_listen_work
*lwork
;
1898 if (!wpa_s
->p2p_listen_work
)
1901 lwork
= wpa_s
->p2p_listen_work
->ctx
;
1902 wpas_p2p_listen_work_free(lwork
);
1903 radio_work_done(wpa_s
->p2p_listen_work
);
1904 wpa_s
->p2p_listen_work
= NULL
;
1908 static void wpas_start_listen_cb(struct wpa_radio_work
*work
, int deinit
)
1910 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
1911 struct wpas_p2p_listen_work
*lwork
= work
->ctx
;
1912 unsigned int duration
;
1915 if (work
->started
) {
1916 wpa_s
->p2p_listen_work
= NULL
;
1917 wpas_stop_listen(wpa_s
);
1919 wpas_p2p_listen_work_free(lwork
);
1923 wpa_s
->p2p_listen_work
= work
;
1925 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, lwork
->probe_resp_ie
, NULL
);
1927 if (wpa_drv_probe_req_report(wpa_s
, 1) < 0) {
1928 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver to "
1929 "report received Probe Request frames");
1930 wpas_p2p_listen_work_done(wpa_s
);
1934 wpa_s
->pending_listen_freq
= lwork
->freq
;
1935 wpa_s
->pending_listen_duration
= lwork
->duration
;
1937 duration
= lwork
->duration
;
1938 #ifdef CONFIG_TESTING_OPTIONS
1939 if (wpa_s
->extra_roc_dur
) {
1940 wpa_printf(MSG_DEBUG
, "TESTING: Increase ROC duration %u -> %u",
1941 duration
, duration
+ wpa_s
->extra_roc_dur
);
1942 duration
+= wpa_s
->extra_roc_dur
;
1944 #endif /* CONFIG_TESTING_OPTIONS */
1946 if (wpa_drv_remain_on_channel(wpa_s
, lwork
->freq
, duration
) < 0) {
1947 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver "
1948 "to remain on channel (%u MHz) for Listen "
1949 "state", lwork
->freq
);
1950 wpas_p2p_listen_work_done(wpa_s
);
1951 wpa_s
->pending_listen_freq
= 0;
1954 wpa_s
->off_channel_freq
= 0;
1955 wpa_s
->roc_waiting_drv_freq
= lwork
->freq
;
1959 static int wpas_start_listen(void *ctx
, unsigned int freq
,
1960 unsigned int duration
,
1961 const struct wpabuf
*probe_resp_ie
)
1963 struct wpa_supplicant
*wpa_s
= ctx
;
1964 struct wpas_p2p_listen_work
*lwork
;
1966 if (wpa_s
->p2p_listen_work
) {
1967 wpa_printf(MSG_DEBUG
, "P2P: Reject start_listen since p2p_listen_work already exists");
1971 lwork
= os_zalloc(sizeof(*lwork
));
1975 lwork
->duration
= duration
;
1976 if (probe_resp_ie
) {
1977 lwork
->probe_resp_ie
= wpabuf_dup(probe_resp_ie
);
1978 if (lwork
->probe_resp_ie
== NULL
) {
1979 wpas_p2p_listen_work_free(lwork
);
1984 if (radio_add_work(wpa_s
, freq
, "p2p-listen", 0, wpas_start_listen_cb
,
1986 wpas_p2p_listen_work_free(lwork
);
1994 static void wpas_stop_listen(void *ctx
)
1996 struct wpa_supplicant
*wpa_s
= ctx
;
1997 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
1998 wpa_drv_cancel_remain_on_channel(wpa_s
);
1999 wpa_s
->off_channel_freq
= 0;
2000 wpa_s
->roc_waiting_drv_freq
= 0;
2002 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, NULL
, NULL
);
2003 wpa_drv_probe_req_report(wpa_s
, 0);
2004 wpas_p2p_listen_work_done(wpa_s
);
2008 static int wpas_send_probe_resp(void *ctx
, const struct wpabuf
*buf
)
2010 struct wpa_supplicant
*wpa_s
= ctx
;
2011 return wpa_drv_send_mlme(wpa_s
, wpabuf_head(buf
), wpabuf_len(buf
), 1);
2016 * DNS Header section is used only to calculate compression pointers, so the
2017 * contents of this data does not matter, but the length needs to be reserved
2018 * in the virtual packet.
2020 #define DNS_HEADER_LEN 12
2023 * 27-octet in-memory packet from P2P specification containing two implied
2024 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
2026 #define P2P_SD_IN_MEMORY_LEN 27
2028 static int p2p_sd_dns_uncompress_label(char **upos
, char *uend
, u8
*start
,
2029 u8
**spos
, const u8
*end
)
2031 while (*spos
< end
) {
2032 u8 val
= ((*spos
)[0] & 0xc0) >> 6;
2035 if (val
== 1 || val
== 2) {
2036 /* These are reserved values in RFC 1035 */
2037 wpa_printf(MSG_DEBUG
, "P2P: Invalid domain name "
2038 "sequence starting with 0x%x", val
);
2047 if (*spos
+ 2 > end
) {
2048 wpa_printf(MSG_DEBUG
, "P2P: No room for full "
2049 "DNS offset field");
2053 offset
= (((*spos
)[0] & 0x3f) << 8) | (*spos
)[1];
2054 if (offset
>= *spos
- start
) {
2055 wpa_printf(MSG_DEBUG
, "P2P: Invalid DNS "
2056 "pointer offset %u", offset
);
2061 spos_tmp
= start
+ offset
;
2062 return p2p_sd_dns_uncompress_label(upos
, uend
, start
,
2068 len
= (*spos
)[0] & 0x3f;
2073 if (*spos
+ len
> end
) {
2074 wpa_printf(MSG_DEBUG
, "P2P: Invalid domain name "
2075 "sequence - no room for label with length "
2080 if (*upos
+ len
+ 2 > uend
)
2083 os_memcpy(*upos
, *spos
, len
);
2095 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
2096 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
2097 * not large enough */
2098 static int p2p_sd_dns_uncompress(char *buf
, size_t buf_len
, const u8
*msg
,
2099 size_t msg_len
, size_t offset
)
2101 /* 27-octet in-memory packet from P2P specification */
2102 const char *prefix
= "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
2103 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
2104 u8
*tmp
, *end
, *spos
;
2110 if (offset
> msg_len
)
2113 tmp
= os_malloc(DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
+ msg_len
);
2116 spos
= tmp
+ DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
;
2117 end
= spos
+ msg_len
;
2120 os_memset(tmp
, 0, DNS_HEADER_LEN
);
2121 os_memcpy(tmp
+ DNS_HEADER_LEN
, prefix
, P2P_SD_IN_MEMORY_LEN
);
2122 os_memcpy(tmp
+ DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
, msg
, msg_len
);
2125 uend
= buf
+ buf_len
;
2127 ret
= p2p_sd_dns_uncompress_label(&upos
, uend
, tmp
, &spos
, end
);
2136 } else if (upos
[-1] == '.')
2144 static struct p2p_srv_bonjour
*
2145 wpas_p2p_service_get_bonjour(struct wpa_supplicant
*wpa_s
,
2146 const struct wpabuf
*query
)
2148 struct p2p_srv_bonjour
*bsrv
;
2151 len
= wpabuf_len(query
);
2152 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
2153 struct p2p_srv_bonjour
, list
) {
2154 if (len
== wpabuf_len(bsrv
->query
) &&
2155 os_memcmp(wpabuf_head(query
), wpabuf_head(bsrv
->query
),
2163 static struct p2p_srv_upnp
*
2164 wpas_p2p_service_get_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
2165 const char *service
)
2167 struct p2p_srv_upnp
*usrv
;
2169 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
2170 struct p2p_srv_upnp
, list
) {
2171 if (version
== usrv
->version
&&
2172 os_strcmp(service
, usrv
->service
) == 0)
2179 static void wpas_sd_add_proto_not_avail(struct wpabuf
*resp
, u8 srv_proto
,
2184 if (wpabuf_tailroom(resp
) < 5)
2187 /* Length (to be filled) */
2188 len_pos
= wpabuf_put(resp
, 2);
2189 wpabuf_put_u8(resp
, srv_proto
);
2190 wpabuf_put_u8(resp
, srv_trans_id
);
2192 wpabuf_put_u8(resp
, P2P_SD_PROTO_NOT_AVAILABLE
);
2193 /* Response Data: empty */
2194 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
2198 static void wpas_sd_all_bonjour(struct wpa_supplicant
*wpa_s
,
2199 struct wpabuf
*resp
, u8 srv_trans_id
)
2201 struct p2p_srv_bonjour
*bsrv
;
2204 wpa_printf(MSG_DEBUG
, "P2P: SD Request for all Bonjour services");
2206 if (dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
2207 wpa_printf(MSG_DEBUG
, "P2P: Bonjour protocol not available");
2211 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
2212 struct p2p_srv_bonjour
, list
) {
2213 if (wpabuf_tailroom(resp
) <
2214 5 + wpabuf_len(bsrv
->query
) + wpabuf_len(bsrv
->resp
))
2216 /* Length (to be filled) */
2217 len_pos
= wpabuf_put(resp
, 2);
2218 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
2219 wpabuf_put_u8(resp
, srv_trans_id
);
2221 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
2222 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Matching Bonjour service",
2223 wpabuf_head(bsrv
->resp
),
2224 wpabuf_len(bsrv
->resp
));
2226 wpabuf_put_buf(resp
, bsrv
->query
); /* Key */
2227 wpabuf_put_buf(resp
, bsrv
->resp
); /* Value */
2228 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
2234 static int match_bonjour_query(struct p2p_srv_bonjour
*bsrv
, const u8
*query
,
2237 char str_rx
[256], str_srv
[256];
2239 if (query_len
< 3 || wpabuf_len(bsrv
->query
) < 3)
2240 return 0; /* Too short to include DNS Type and Version */
2241 if (os_memcmp(query
+ query_len
- 3,
2242 wpabuf_head_u8(bsrv
->query
) + wpabuf_len(bsrv
->query
) - 3,
2244 return 0; /* Mismatch in DNS Type or Version */
2245 if (query_len
== wpabuf_len(bsrv
->query
) &&
2246 os_memcmp(query
, wpabuf_head(bsrv
->query
), query_len
- 3) == 0)
2247 return 1; /* Binary match */
2249 if (p2p_sd_dns_uncompress(str_rx
, sizeof(str_rx
), query
, query_len
- 3,
2251 return 0; /* Failed to uncompress query */
2252 if (p2p_sd_dns_uncompress(str_srv
, sizeof(str_srv
),
2253 wpabuf_head(bsrv
->query
),
2254 wpabuf_len(bsrv
->query
) - 3, 0))
2255 return 0; /* Failed to uncompress service */
2257 return os_strcmp(str_rx
, str_srv
) == 0;
2261 static void wpas_sd_req_bonjour(struct wpa_supplicant
*wpa_s
,
2262 struct wpabuf
*resp
, u8 srv_trans_id
,
2263 const u8
*query
, size_t query_len
)
2265 struct p2p_srv_bonjour
*bsrv
;
2269 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: SD Request for Bonjour",
2271 if (dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
2272 wpa_printf(MSG_DEBUG
, "P2P: Bonjour protocol not available");
2273 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_BONJOUR
,
2278 if (query_len
== 0) {
2279 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
2283 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
2284 struct p2p_srv_bonjour
, list
) {
2285 if (!match_bonjour_query(bsrv
, query
, query_len
))
2288 if (wpabuf_tailroom(resp
) <
2289 5 + query_len
+ wpabuf_len(bsrv
->resp
))
2294 /* Length (to be filled) */
2295 len_pos
= wpabuf_put(resp
, 2);
2296 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
2297 wpabuf_put_u8(resp
, srv_trans_id
);
2300 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
2301 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Matching Bonjour service",
2302 wpabuf_head(bsrv
->resp
),
2303 wpabuf_len(bsrv
->resp
));
2306 wpabuf_put_data(resp
, query
, query_len
); /* Key */
2307 wpabuf_put_buf(resp
, bsrv
->resp
); /* Value */
2309 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
2313 wpa_printf(MSG_DEBUG
, "P2P: Requested Bonjour service not "
2315 if (wpabuf_tailroom(resp
) < 5)
2318 /* Length (to be filled) */
2319 len_pos
= wpabuf_put(resp
, 2);
2320 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
2321 wpabuf_put_u8(resp
, srv_trans_id
);
2324 wpabuf_put_u8(resp
, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE
);
2325 /* Response Data: empty */
2326 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
2332 static void wpas_sd_all_upnp(struct wpa_supplicant
*wpa_s
,
2333 struct wpabuf
*resp
, u8 srv_trans_id
)
2335 struct p2p_srv_upnp
*usrv
;
2338 wpa_printf(MSG_DEBUG
, "P2P: SD Request for all UPnP services");
2340 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
)) {
2341 wpa_printf(MSG_DEBUG
, "P2P: UPnP protocol not available");
2345 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
2346 struct p2p_srv_upnp
, list
) {
2347 if (wpabuf_tailroom(resp
) < 5 + 1 + os_strlen(usrv
->service
))
2350 /* Length (to be filled) */
2351 len_pos
= wpabuf_put(resp
, 2);
2352 wpabuf_put_u8(resp
, P2P_SERV_UPNP
);
2353 wpabuf_put_u8(resp
, srv_trans_id
);
2356 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
2358 wpabuf_put_u8(resp
, usrv
->version
);
2359 wpa_printf(MSG_DEBUG
, "P2P: Matching UPnP Service: %s",
2361 wpabuf_put_str(resp
, usrv
->service
);
2362 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
2368 static void wpas_sd_req_upnp(struct wpa_supplicant
*wpa_s
,
2369 struct wpabuf
*resp
, u8 srv_trans_id
,
2370 const u8
*query
, size_t query_len
)
2372 struct p2p_srv_upnp
*usrv
;
2378 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: SD Request for UPnP",
2381 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
)) {
2382 wpa_printf(MSG_DEBUG
, "P2P: UPnP protocol not available");
2383 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_UPNP
,
2388 if (query_len
== 0) {
2389 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
2393 if (wpabuf_tailroom(resp
) < 5)
2396 /* Length (to be filled) */
2397 len_pos
= wpabuf_put(resp
, 2);
2398 wpabuf_put_u8(resp
, P2P_SERV_UPNP
);
2399 wpabuf_put_u8(resp
, srv_trans_id
);
2402 str
= os_malloc(query_len
);
2405 os_memcpy(str
, query
+ 1, query_len
- 1);
2406 str
[query_len
- 1] = '\0';
2408 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
2409 struct p2p_srv_upnp
, list
) {
2410 if (version
!= usrv
->version
)
2413 if (os_strcmp(str
, "ssdp:all") != 0 &&
2414 os_strstr(usrv
->service
, str
) == NULL
)
2417 if (wpabuf_tailroom(resp
) < 2)
2421 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
2423 wpabuf_put_u8(resp
, version
);
2425 wpabuf_put_u8(resp
, ',');
2429 wpa_printf(MSG_DEBUG
, "P2P: Matching UPnP Service: %s",
2431 if (wpabuf_tailroom(resp
) < os_strlen(usrv
->service
))
2433 wpabuf_put_str(resp
, usrv
->service
);
2438 wpa_printf(MSG_DEBUG
, "P2P: Requested UPnP service not "
2441 wpabuf_put_u8(resp
, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE
);
2442 /* Response Data: empty */
2445 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
2449 #ifdef CONFIG_WIFI_DISPLAY
2450 static void wpas_sd_req_wfd(struct wpa_supplicant
*wpa_s
,
2451 struct wpabuf
*resp
, u8 srv_trans_id
,
2452 const u8
*query
, size_t query_len
)
2458 wpa_hexdump(MSG_DEBUG
, "P2P: SD Request for WFD", query
, query_len
);
2460 if (!wpa_s
->global
->wifi_display
) {
2461 wpa_printf(MSG_DEBUG
, "P2P: WFD protocol not available");
2462 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_WIFI_DISPLAY
,
2467 if (query_len
< 1) {
2468 wpa_printf(MSG_DEBUG
, "P2P: Missing WFD Requested Device "
2473 if (wpabuf_tailroom(resp
) < 5)
2478 wpa_printf(MSG_DEBUG
, "P2P: WSD for device role 0x%x", role
);
2480 /* TODO: role specific handling */
2482 /* Length (to be filled) */
2483 len_pos
= wpabuf_put(resp
, 2);
2484 wpabuf_put_u8(resp
, P2P_SERV_WIFI_DISPLAY
);
2485 wpabuf_put_u8(resp
, srv_trans_id
);
2486 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
); /* Status Code */
2488 while (pos
< query
+ query_len
) {
2489 if (*pos
< MAX_WFD_SUBELEMS
&&
2490 wpa_s
->global
->wfd_subelem
[*pos
] &&
2491 wpabuf_tailroom(resp
) >=
2492 wpabuf_len(wpa_s
->global
->wfd_subelem
[*pos
])) {
2493 wpa_printf(MSG_DEBUG
, "P2P: Add WSD response "
2494 "subelement %u", *pos
);
2495 wpabuf_put_buf(resp
, wpa_s
->global
->wfd_subelem
[*pos
]);
2500 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
2502 #endif /* CONFIG_WIFI_DISPLAY */
2505 static void wpas_sd_request(void *ctx
, int freq
, const u8
*sa
, u8 dialog_token
,
2506 u16 update_indic
, const u8
*tlvs
, size_t tlvs_len
)
2508 struct wpa_supplicant
*wpa_s
= ctx
;
2509 const u8
*pos
= tlvs
;
2510 const u8
*end
= tlvs
+ tlvs_len
;
2513 struct wpabuf
*resp
;
2514 u8 srv_proto
, srv_trans_id
;
2518 wpa_hexdump(MSG_MSGDUMP
, "P2P: Service Discovery Request TLVs",
2520 buf_len
= 2 * tlvs_len
+ 1;
2521 buf
= os_malloc(buf_len
);
2523 wpa_snprintf_hex(buf
, buf_len
, tlvs
, tlvs_len
);
2524 wpa_msg_ctrl(wpa_s
, MSG_INFO
, P2P_EVENT_SERV_DISC_REQ
"%d "
2526 freq
, MAC2STR(sa
), dialog_token
, update_indic
,
2531 if (wpa_s
->p2p_sd_over_ctrl_iface
) {
2532 wpas_notify_p2p_sd_request(wpa_s
, freq
, sa
, dialog_token
,
2533 update_indic
, tlvs
, tlvs_len
);
2534 return; /* to be processed by an external program */
2537 resp
= wpabuf_alloc(10000);
2541 while (pos
+ 1 < end
) {
2542 wpa_printf(MSG_DEBUG
, "P2P: Service Request TLV");
2543 slen
= WPA_GET_LE16(pos
);
2545 if (pos
+ slen
> end
|| slen
< 2) {
2546 wpa_printf(MSG_DEBUG
, "P2P: Unexpected Query Data "
2551 tlv_end
= pos
+ slen
;
2554 wpa_printf(MSG_DEBUG
, "P2P: Service Protocol Type %u",
2556 srv_trans_id
= *pos
++;
2557 wpa_printf(MSG_DEBUG
, "P2P: Service Transaction ID %u",
2560 wpa_hexdump(MSG_MSGDUMP
, "P2P: Query Data",
2561 pos
, tlv_end
- pos
);
2564 if (wpa_s
->force_long_sd
) {
2565 wpa_printf(MSG_DEBUG
, "P2P: SD test - force long "
2567 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
2568 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
2572 switch (srv_proto
) {
2573 case P2P_SERV_ALL_SERVICES
:
2574 wpa_printf(MSG_DEBUG
, "P2P: Service Discovery Request "
2575 "for all services");
2576 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
) &&
2577 dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
2578 wpa_printf(MSG_DEBUG
, "P2P: No service "
2579 "discovery protocols available");
2580 wpas_sd_add_proto_not_avail(
2581 resp
, P2P_SERV_ALL_SERVICES
,
2585 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
2586 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
2588 case P2P_SERV_BONJOUR
:
2589 wpas_sd_req_bonjour(wpa_s
, resp
, srv_trans_id
,
2590 pos
, tlv_end
- pos
);
2593 wpas_sd_req_upnp(wpa_s
, resp
, srv_trans_id
,
2594 pos
, tlv_end
- pos
);
2596 #ifdef CONFIG_WIFI_DISPLAY
2597 case P2P_SERV_WIFI_DISPLAY
:
2598 wpas_sd_req_wfd(wpa_s
, resp
, srv_trans_id
,
2599 pos
, tlv_end
- pos
);
2601 #endif /* CONFIG_WIFI_DISPLAY */
2603 wpa_printf(MSG_DEBUG
, "P2P: Unavailable service "
2604 "protocol %u", srv_proto
);
2605 wpas_sd_add_proto_not_avail(resp
, srv_proto
,
2614 wpas_notify_p2p_sd_request(wpa_s
, freq
, sa
, dialog_token
,
2615 update_indic
, tlvs
, tlvs_len
);
2617 wpas_p2p_sd_response(wpa_s
, freq
, sa
, dialog_token
, resp
);
2623 static void wpas_sd_response(void *ctx
, const u8
*sa
, u16 update_indic
,
2624 const u8
*tlvs
, size_t tlvs_len
)
2626 struct wpa_supplicant
*wpa_s
= ctx
;
2627 const u8
*pos
= tlvs
;
2628 const u8
*end
= tlvs
+ tlvs_len
;
2634 wpa_hexdump(MSG_MSGDUMP
, "P2P: Service Discovery Response TLVs",
2636 if (tlvs_len
> 1500) {
2637 /* TODO: better way for handling this */
2638 wpa_msg_ctrl(wpa_s
, MSG_INFO
,
2639 P2P_EVENT_SERV_DISC_RESP MACSTR
2640 " %u <long response: %u bytes>",
2641 MAC2STR(sa
), update_indic
,
2642 (unsigned int) tlvs_len
);
2644 buf_len
= 2 * tlvs_len
+ 1;
2645 buf
= os_malloc(buf_len
);
2647 wpa_snprintf_hex(buf
, buf_len
, tlvs
, tlvs_len
);
2648 wpa_msg_ctrl(wpa_s
, MSG_INFO
,
2649 P2P_EVENT_SERV_DISC_RESP MACSTR
" %u %s",
2650 MAC2STR(sa
), update_indic
, buf
);
2656 u8 srv_proto
, srv_trans_id
, status
;
2658 wpa_printf(MSG_DEBUG
, "P2P: Service Response TLV");
2659 slen
= WPA_GET_LE16(pos
);
2661 if (pos
+ slen
> end
|| slen
< 3) {
2662 wpa_printf(MSG_DEBUG
, "P2P: Unexpected Response Data "
2666 tlv_end
= pos
+ slen
;
2669 wpa_printf(MSG_DEBUG
, "P2P: Service Protocol Type %u",
2671 srv_trans_id
= *pos
++;
2672 wpa_printf(MSG_DEBUG
, "P2P: Service Transaction ID %u",
2675 wpa_printf(MSG_DEBUG
, "P2P: Status Code ID %u",
2678 wpa_hexdump(MSG_MSGDUMP
, "P2P: Response Data",
2679 pos
, tlv_end
- pos
);
2684 wpas_notify_p2p_sd_response(wpa_s
, sa
, update_indic
, tlvs
, tlvs_len
);
2688 u64
wpas_p2p_sd_request(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2689 const struct wpabuf
*tlvs
)
2691 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2693 return (uintptr_t) p2p_sd_request(wpa_s
->global
->p2p
, dst
, tlvs
);
2697 u64
wpas_p2p_sd_request_upnp(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2698 u8 version
, const char *query
)
2700 struct wpabuf
*tlvs
;
2703 tlvs
= wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query
));
2706 wpabuf_put_le16(tlvs
, 1 + 1 + 1 + os_strlen(query
));
2707 wpabuf_put_u8(tlvs
, P2P_SERV_UPNP
); /* Service Protocol Type */
2708 wpabuf_put_u8(tlvs
, 1); /* Service Transaction ID */
2709 wpabuf_put_u8(tlvs
, version
);
2710 wpabuf_put_str(tlvs
, query
);
2711 ret
= wpas_p2p_sd_request(wpa_s
, dst
, tlvs
);
2717 #ifdef CONFIG_WIFI_DISPLAY
2719 static u64
wpas_p2p_sd_request_wfd(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2720 const struct wpabuf
*tlvs
)
2722 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2724 return (uintptr_t) p2p_sd_request_wfd(wpa_s
->global
->p2p
, dst
, tlvs
);
2728 #define MAX_WFD_SD_SUBELEMS 20
2730 static void wfd_add_sd_req_role(struct wpabuf
*tlvs
, u8 id
, u8 role
,
2731 const char *subelems
)
2738 len
= wpabuf_put(tlvs
, 2);
2739 wpabuf_put_u8(tlvs
, P2P_SERV_WIFI_DISPLAY
); /* Service Protocol Type */
2740 wpabuf_put_u8(tlvs
, id
); /* Service Transaction ID */
2742 wpabuf_put_u8(tlvs
, role
);
2747 if (val
>= 0 && val
< 256) {
2748 wpabuf_put_u8(tlvs
, val
);
2750 if (count
== MAX_WFD_SD_SUBELEMS
)
2753 pos
= os_strchr(pos
+ 1, ',');
2759 WPA_PUT_LE16(len
, (u8
*) wpabuf_put(tlvs
, 0) - len
- 2);
2763 u64
wpas_p2p_sd_request_wifi_display(struct wpa_supplicant
*wpa_s
,
2764 const u8
*dst
, const char *role
)
2766 struct wpabuf
*tlvs
;
2768 const char *subelems
;
2771 subelems
= os_strchr(role
, ' ');
2772 if (subelems
== NULL
)
2776 tlvs
= wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS
));
2780 if (os_strstr(role
, "[source]"))
2781 wfd_add_sd_req_role(tlvs
, id
++, 0x00, subelems
);
2782 if (os_strstr(role
, "[pri-sink]"))
2783 wfd_add_sd_req_role(tlvs
, id
++, 0x01, subelems
);
2784 if (os_strstr(role
, "[sec-sink]"))
2785 wfd_add_sd_req_role(tlvs
, id
++, 0x02, subelems
);
2786 if (os_strstr(role
, "[source+sink]"))
2787 wfd_add_sd_req_role(tlvs
, id
++, 0x03, subelems
);
2789 ret
= wpas_p2p_sd_request_wfd(wpa_s
, dst
, tlvs
);
2794 #endif /* CONFIG_WIFI_DISPLAY */
2797 int wpas_p2p_sd_cancel_request(struct wpa_supplicant
*wpa_s
, u64 req
)
2799 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2801 return p2p_sd_cancel_request(wpa_s
->global
->p2p
,
2802 (void *) (uintptr_t) req
);
2806 void wpas_p2p_sd_response(struct wpa_supplicant
*wpa_s
, int freq
,
2807 const u8
*dst
, u8 dialog_token
,
2808 const struct wpabuf
*resp_tlvs
)
2810 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2812 p2p_sd_response(wpa_s
->global
->p2p
, freq
, dst
, dialog_token
,
2817 void wpas_p2p_sd_service_update(struct wpa_supplicant
*wpa_s
)
2819 if (wpa_s
->global
->p2p
)
2820 p2p_sd_service_update(wpa_s
->global
->p2p
);
2824 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour
*bsrv
)
2826 dl_list_del(&bsrv
->list
);
2827 wpabuf_free(bsrv
->query
);
2828 wpabuf_free(bsrv
->resp
);
2833 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp
*usrv
)
2835 dl_list_del(&usrv
->list
);
2836 os_free(usrv
->service
);
2841 void wpas_p2p_service_flush(struct wpa_supplicant
*wpa_s
)
2843 struct p2p_srv_bonjour
*bsrv
, *bn
;
2844 struct p2p_srv_upnp
*usrv
, *un
;
2846 dl_list_for_each_safe(bsrv
, bn
, &wpa_s
->global
->p2p_srv_bonjour
,
2847 struct p2p_srv_bonjour
, list
)
2848 wpas_p2p_srv_bonjour_free(bsrv
);
2850 dl_list_for_each_safe(usrv
, un
, &wpa_s
->global
->p2p_srv_upnp
,
2851 struct p2p_srv_upnp
, list
)
2852 wpas_p2p_srv_upnp_free(usrv
);
2854 wpas_p2p_sd_service_update(wpa_s
);
2858 int wpas_p2p_service_add_bonjour(struct wpa_supplicant
*wpa_s
,
2859 struct wpabuf
*query
, struct wpabuf
*resp
)
2861 struct p2p_srv_bonjour
*bsrv
;
2863 bsrv
= os_zalloc(sizeof(*bsrv
));
2866 bsrv
->query
= query
;
2868 dl_list_add(&wpa_s
->global
->p2p_srv_bonjour
, &bsrv
->list
);
2870 wpas_p2p_sd_service_update(wpa_s
);
2875 int wpas_p2p_service_del_bonjour(struct wpa_supplicant
*wpa_s
,
2876 const struct wpabuf
*query
)
2878 struct p2p_srv_bonjour
*bsrv
;
2880 bsrv
= wpas_p2p_service_get_bonjour(wpa_s
, query
);
2883 wpas_p2p_srv_bonjour_free(bsrv
);
2884 wpas_p2p_sd_service_update(wpa_s
);
2889 int wpas_p2p_service_add_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
2890 const char *service
)
2892 struct p2p_srv_upnp
*usrv
;
2894 if (wpas_p2p_service_get_upnp(wpa_s
, version
, service
))
2895 return 0; /* Already listed */
2896 usrv
= os_zalloc(sizeof(*usrv
));
2899 usrv
->version
= version
;
2900 usrv
->service
= os_strdup(service
);
2901 if (usrv
->service
== NULL
) {
2905 dl_list_add(&wpa_s
->global
->p2p_srv_upnp
, &usrv
->list
);
2907 wpas_p2p_sd_service_update(wpa_s
);
2912 int wpas_p2p_service_del_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
2913 const char *service
)
2915 struct p2p_srv_upnp
*usrv
;
2917 usrv
= wpas_p2p_service_get_upnp(wpa_s
, version
, service
);
2920 wpas_p2p_srv_upnp_free(usrv
);
2921 wpas_p2p_sd_service_update(wpa_s
);
2926 static void wpas_prov_disc_local_display(struct wpa_supplicant
*wpa_s
,
2927 const u8
*peer
, const char *params
,
2928 unsigned int generated_pin
)
2930 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2931 " %08d%s", MAC2STR(peer
), generated_pin
, params
);
2935 static void wpas_prov_disc_local_keypad(struct wpa_supplicant
*wpa_s
,
2936 const u8
*peer
, const char *params
)
2938 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2939 "%s", MAC2STR(peer
), params
);
2943 static void wpas_prov_disc_req(void *ctx
, const u8
*peer
, u16 config_methods
,
2944 const u8
*dev_addr
, const u8
*pri_dev_type
,
2945 const char *dev_name
, u16 supp_config_methods
,
2946 u8 dev_capab
, u8 group_capab
, const u8
*group_id
,
2947 size_t group_id_len
)
2949 struct wpa_supplicant
*wpa_s
= ctx
;
2950 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2952 u8 empty_dev_type
[8];
2953 unsigned int generated_pin
= 0;
2954 struct wpa_supplicant
*group
= NULL
;
2958 for (group
= wpa_s
->global
->ifaces
; group
; group
= group
->next
)
2960 struct wpa_ssid
*s
= group
->current_ssid
;
2962 s
->mode
== WPAS_MODE_P2P_GO
&&
2963 group_id_len
- ETH_ALEN
== s
->ssid_len
&&
2964 os_memcmp(group_id
+ ETH_ALEN
, s
->ssid
,
2970 if (pri_dev_type
== NULL
) {
2971 os_memset(empty_dev_type
, 0, sizeof(empty_dev_type
));
2972 pri_dev_type
= empty_dev_type
;
2974 res
= os_snprintf(params
, sizeof(params
), " p2p_dev_addr=" MACSTR
2975 " pri_dev_type=%s name='%s' config_methods=0x%x "
2976 "dev_capab=0x%x group_capab=0x%x%s%s",
2978 wps_dev_type_bin2str(pri_dev_type
, devtype
,
2980 dev_name
, supp_config_methods
, dev_capab
, group_capab
,
2981 group
? " group=" : "",
2982 group
? group
->ifname
: "");
2983 if (os_snprintf_error(sizeof(params
), res
))
2984 wpa_printf(MSG_DEBUG
, "P2P: PD Request event truncated");
2985 params
[sizeof(params
) - 1] = '\0';
2987 if (config_methods
& WPS_CONFIG_DISPLAY
) {
2988 generated_pin
= wps_generate_pin();
2989 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2991 } else if (config_methods
& WPS_CONFIG_KEYPAD
)
2992 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2993 else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2994 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_REQ
2995 MACSTR
"%s", MAC2STR(peer
), params
);
2997 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 1 /* request */,
2998 P2P_PROV_DISC_SUCCESS
,
2999 config_methods
, generated_pin
);
3003 static void wpas_prov_disc_resp(void *ctx
, const u8
*peer
, u16 config_methods
)
3005 struct wpa_supplicant
*wpa_s
= ctx
;
3006 unsigned int generated_pin
= 0;
3009 if (wpa_s
->pending_pd_before_join
&&
3010 (os_memcmp(peer
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
3011 os_memcmp(peer
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0)) {
3012 wpa_s
->pending_pd_before_join
= 0;
3013 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
3014 "join-existing-group operation");
3015 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
3019 if (wpa_s
->pending_pd_use
== AUTO_PD_JOIN
||
3020 wpa_s
->pending_pd_use
== AUTO_PD_GO_NEG
) {
3023 res
= os_snprintf(params
, sizeof(params
), " peer_go=%d",
3024 wpa_s
->pending_pd_use
== AUTO_PD_JOIN
);
3025 if (os_snprintf_error(sizeof(params
), res
))
3026 params
[sizeof(params
) - 1] = '\0';
3030 if (config_methods
& WPS_CONFIG_DISPLAY
)
3031 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
3032 else if (config_methods
& WPS_CONFIG_KEYPAD
) {
3033 generated_pin
= wps_generate_pin();
3034 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
3036 } else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
3037 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_RESP
3038 MACSTR
"%s", MAC2STR(peer
), params
);
3040 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
3041 P2P_PROV_DISC_SUCCESS
,
3042 config_methods
, generated_pin
);
3046 static void wpas_prov_disc_fail(void *ctx
, const u8
*peer
,
3047 enum p2p_prov_disc_status status
)
3049 struct wpa_supplicant
*wpa_s
= ctx
;
3051 if (wpa_s
->p2p_fallback_to_go_neg
) {
3052 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: PD for p2p_connect-auto "
3053 "failed - fall back to GO Negotiation");
3054 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
3058 if (status
== P2P_PROV_DISC_TIMEOUT_JOIN
) {
3059 wpa_s
->pending_pd_before_join
= 0;
3060 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
3061 "join-existing-group operation (no ACK for PD "
3063 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
3067 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
3068 " p2p_dev_addr=" MACSTR
" status=%d",
3069 MAC2STR(peer
), status
);
3071 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
3076 static int freq_included(const struct p2p_channels
*channels
, unsigned int freq
)
3078 if (channels
== NULL
)
3079 return 1; /* Assume no restrictions */
3080 return p2p_channels_includes_freq(channels
, freq
);
3086 * Pick the best frequency to use from all the currently used frequencies.
3088 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant
*wpa_s
,
3089 struct wpa_used_freq_data
*freqs
,
3094 /* find a candidate freq that is supported by P2P */
3095 for (c
= 0; c
< num
; c
++)
3096 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[c
].freq
))
3102 /* once we have a candidate, try to find a 'better' one */
3103 for (i
= c
+ 1; i
< num
; i
++) {
3104 if (!p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
3108 * 1. Infrastructure station interfaces have higher preference.
3109 * 2. P2P Clients have higher preference.
3112 if (freqs
[i
].flags
& WPA_FREQ_USED_BY_INFRA_STATION
) {
3117 if ((freqs
[i
].flags
& WPA_FREQ_USED_BY_P2P_CLIENT
))
3120 return freqs
[c
].freq
;
3124 static u8
wpas_invitation_process(void *ctx
, const u8
*sa
, const u8
*bssid
,
3125 const u8
*go_dev_addr
, const u8
*ssid
,
3126 size_t ssid_len
, int *go
, u8
*group_bssid
,
3127 int *force_freq
, int persistent_group
,
3128 const struct p2p_channels
*channels
,
3131 struct wpa_supplicant
*wpa_s
= ctx
;
3133 struct wpa_used_freq_data
*freqs
;
3134 struct wpa_supplicant
*grp
;
3137 if (!persistent_group
) {
3138 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
3139 " to join an active group (SSID: %s)",
3140 MAC2STR(sa
), wpa_ssid_txt(ssid
, ssid_len
));
3141 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
3142 (os_memcmp(go_dev_addr
, wpa_s
->p2p_auth_invite
, ETH_ALEN
)
3144 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0)) {
3145 wpa_printf(MSG_DEBUG
, "P2P: Accept previously "
3146 "authorized invitation");
3150 #ifdef CONFIG_WPS_NFC
3151 if (dev_pw_id
>= 0 && wpa_s
->parent
->p2p_nfc_tag_enabled
&&
3152 dev_pw_id
== wpa_s
->parent
->p2p_oob_dev_pw_id
) {
3153 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation based on local enabled NFC Tag");
3154 wpa_s
->parent
->p2p_wps_method
= WPS_NFC
;
3155 wpa_s
->parent
->pending_join_wps_method
= WPS_NFC
;
3156 os_memcpy(wpa_s
->parent
->pending_join_dev_addr
,
3157 go_dev_addr
, ETH_ALEN
);
3158 os_memcpy(wpa_s
->parent
->pending_join_iface_addr
,
3162 #endif /* CONFIG_WPS_NFC */
3165 * Do not accept the invitation automatically; notify user and
3168 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
3171 grp
= wpas_get_p2p_group(wpa_s
, ssid
, ssid_len
, go
);
3173 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation to already "
3174 "running persistent group");
3176 os_memcpy(group_bssid
, grp
->own_addr
, ETH_ALEN
);
3180 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
3181 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0) {
3182 wpa_printf(MSG_DEBUG
, "P2P: Accept previously initiated "
3183 "invitation to re-invoke a persistent group");
3184 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
3185 } else if (!wpa_s
->conf
->persistent_reconnect
)
3186 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
3188 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
3189 if (s
->disabled
== 2 &&
3190 os_memcmp(s
->bssid
, go_dev_addr
, ETH_ALEN
) == 0 &&
3191 s
->ssid_len
== ssid_len
&&
3192 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
3197 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
3198 " requested reinvocation of an unknown group",
3200 return P2P_SC_FAIL_UNKNOWN_GROUP
;
3203 if (s
->mode
== WPAS_MODE_P2P_GO
&& !wpas_p2p_create_iface(wpa_s
)) {
3205 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
) {
3206 wpa_printf(MSG_DEBUG
, "P2P: The only available "
3207 "interface is already in use - reject "
3209 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
3211 os_memcpy(group_bssid
, wpa_s
->own_addr
, ETH_ALEN
);
3212 } else if (s
->mode
== WPAS_MODE_P2P_GO
) {
3214 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
) < 0)
3216 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
3217 "interface address for the group");
3218 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
3220 os_memcpy(group_bssid
, wpa_s
->pending_interface_addr
,
3225 wpas_p2p_set_own_freq_preference(wpa_s
, 0);
3228 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
3229 sizeof(struct wpa_used_freq_data
));
3231 int num_channels
= wpa_s
->num_multichan_concurrent
;
3232 int num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
, num_channels
);
3233 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
3237 /* Get one of the frequencies currently in use */
3238 if (best_freq
> 0) {
3239 wpa_printf(MSG_DEBUG
, "P2P: Trying to prefer a channel already used by one of the interfaces");
3240 wpas_p2p_set_own_freq_preference(wpa_s
, best_freq
);
3242 if (wpa_s
->num_multichan_concurrent
< 2 ||
3243 wpas_p2p_num_unused_channels(wpa_s
) < 1) {
3244 wpa_printf(MSG_DEBUG
, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
3245 *force_freq
= best_freq
;
3249 if (*force_freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
3250 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
3252 /* We are the client */
3253 wpa_printf(MSG_DEBUG
, "P2P: Peer was found to be "
3254 "running a GO but we are capable of MCC, "
3255 "figure out the best channel to use");
3257 } else if (!freq_included(channels
, *force_freq
)) {
3258 /* We are the GO, and *force_freq is not in the
3260 wpa_printf(MSG_DEBUG
, "P2P: Forced GO freq %d MHz not "
3261 "in intersection but we are capable of MCC, "
3262 "figure out the best channel to use",
3268 return P2P_SC_SUCCESS
;
3272 static void wpas_invitation_received(void *ctx
, const u8
*sa
, const u8
*bssid
,
3273 const u8
*ssid
, size_t ssid_len
,
3274 const u8
*go_dev_addr
, u8 status
,
3277 struct wpa_supplicant
*wpa_s
= ctx
;
3280 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
3281 if (s
->disabled
== 2 &&
3282 s
->ssid_len
== ssid_len
&&
3283 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
3287 if (status
== P2P_SC_SUCCESS
) {
3288 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
3289 " was accepted; op_freq=%d MHz, SSID=%s",
3290 MAC2STR(sa
), op_freq
, wpa_ssid_txt(ssid
, ssid_len
));
3292 int go
= s
->mode
== WPAS_MODE_P2P_GO
;
3293 wpas_p2p_group_add_persistent(
3294 wpa_s
, s
, go
, 0, op_freq
, 0, 0, NULL
,
3295 go
? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
: 0);
3297 wpa_s
->user_initiated_pd
= 0;
3298 wpas_p2p_join(wpa_s
, bssid
, go_dev_addr
,
3299 wpa_s
->p2p_wps_method
, 0, op_freq
,
3305 if (status
!= P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
3306 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
3307 " was rejected (status %u)", MAC2STR(sa
), status
);
3313 wpa_msg_global(wpa_s
, MSG_INFO
,
3314 P2P_EVENT_INVITATION_RECEIVED
3315 "sa=" MACSTR
" go_dev_addr=" MACSTR
3316 " bssid=" MACSTR
" unknown-network",
3317 MAC2STR(sa
), MAC2STR(go_dev_addr
),
3320 wpa_msg_global(wpa_s
, MSG_INFO
,
3321 P2P_EVENT_INVITATION_RECEIVED
3322 "sa=" MACSTR
" go_dev_addr=" MACSTR
3324 MAC2STR(sa
), MAC2STR(go_dev_addr
));
3329 if (s
->mode
== WPAS_MODE_P2P_GO
&& op_freq
) {
3330 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
3331 "sa=" MACSTR
" persistent=%d freq=%d",
3332 MAC2STR(sa
), s
->id
, op_freq
);
3334 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
3335 "sa=" MACSTR
" persistent=%d",
3336 MAC2STR(sa
), s
->id
);
3341 static void wpas_remove_persistent_peer(struct wpa_supplicant
*wpa_s
,
3342 struct wpa_ssid
*ssid
,
3343 const u8
*peer
, int inv
)
3350 for (i
= 0; ssid
->p2p_client_list
&& i
< ssid
->num_p2p_clients
; i
++) {
3351 if (os_memcmp(ssid
->p2p_client_list
+ i
* ETH_ALEN
, peer
,
3355 if (i
>= ssid
->num_p2p_clients
|| !ssid
->p2p_client_list
) {
3356 if (ssid
->mode
!= WPAS_MODE_P2P_GO
&&
3357 os_memcmp(ssid
->bssid
, peer
, ETH_ALEN
) == 0) {
3358 wpa_printf(MSG_DEBUG
, "P2P: Remove persistent group %d "
3359 "due to invitation result", ssid
->id
);
3360 wpas_notify_network_removed(wpa_s
, ssid
);
3361 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
3364 return; /* Peer not found in client list */
3367 wpa_printf(MSG_DEBUG
, "P2P: Remove peer " MACSTR
" from persistent "
3368 "group %d client list%s",
3369 MAC2STR(peer
), ssid
->id
,
3370 inv
? " due to invitation result" : "");
3371 os_memmove(ssid
->p2p_client_list
+ i
* ETH_ALEN
,
3372 ssid
->p2p_client_list
+ (i
+ 1) * ETH_ALEN
,
3373 (ssid
->num_p2p_clients
- i
- 1) * ETH_ALEN
);
3374 ssid
->num_p2p_clients
--;
3375 if (wpa_s
->parent
->conf
->update_config
&&
3376 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
3377 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
3381 static void wpas_remove_persistent_client(struct wpa_supplicant
*wpa_s
,
3384 struct wpa_ssid
*ssid
;
3386 wpa_s
= wpa_s
->global
->p2p_invite_group
;
3388 return; /* No known invitation group */
3389 ssid
= wpa_s
->current_ssid
;
3390 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
3391 !ssid
->p2p_persistent_group
)
3392 return; /* Not operating as a GO in persistent group */
3393 ssid
= wpas_p2p_get_persistent(wpa_s
->parent
, peer
,
3394 ssid
->ssid
, ssid
->ssid_len
);
3395 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
3399 static void wpas_invitation_result(void *ctx
, int status
, const u8
*bssid
,
3400 const struct p2p_channels
*channels
,
3401 const u8
*peer
, int neg_freq
,
3404 struct wpa_supplicant
*wpa_s
= ctx
;
3405 struct wpa_ssid
*ssid
;
3409 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3410 "status=%d " MACSTR
,
3411 status
, MAC2STR(bssid
));
3413 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3414 "status=%d ", status
);
3416 wpas_notify_p2p_invitation_result(wpa_s
, status
, bssid
);
3418 wpa_printf(MSG_DEBUG
, "P2P: Invitation result - status=%d peer=" MACSTR
,
3419 status
, MAC2STR(peer
));
3420 if (wpa_s
->pending_invite_ssid_id
== -1) {
3421 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
)
3422 wpas_remove_persistent_client(wpa_s
, peer
);
3423 return; /* Invitation to active group */
3426 if (status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
3427 wpa_printf(MSG_DEBUG
, "P2P: Waiting for peer to start another "
3428 "invitation exchange to indicate readiness for "
3432 if (status
!= P2P_SC_SUCCESS
) {
3433 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
) {
3434 ssid
= wpa_config_get_network(
3435 wpa_s
->conf
, wpa_s
->pending_invite_ssid_id
);
3436 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
3438 wpas_p2p_remove_pending_group_interface(wpa_s
);
3442 ssid
= wpa_config_get_network(wpa_s
->conf
,
3443 wpa_s
->pending_invite_ssid_id
);
3445 wpa_printf(MSG_ERROR
, "P2P: Could not find persistent group "
3446 "data matching with invitation");
3451 * The peer could have missed our ctrl::ack frame for Invitation
3452 * Response and continue retransmitting the frame. To reduce the
3453 * likelihood of the peer not getting successful TX status for the
3454 * Invitation Response frame, wait a short time here before starting
3455 * the persistent group so that we will remain on the current channel to
3456 * acknowledge any possible retransmission from the peer.
3458 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: 50 ms wait on current channel before "
3459 "starting persistent group");
3462 if (neg_freq
> 0 && ssid
->mode
== WPAS_MODE_P2P_GO
&&
3463 freq_included(channels
, neg_freq
))
3465 else if (peer_oper_freq
> 0 && ssid
->mode
!= WPAS_MODE_P2P_GO
&&
3466 freq_included(channels
, peer_oper_freq
))
3467 freq
= peer_oper_freq
;
3471 wpa_printf(MSG_DEBUG
, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3472 freq
, wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
3473 wpas_p2p_group_add_persistent(wpa_s
, ssid
,
3474 ssid
->mode
== WPAS_MODE_P2P_GO
,
3475 wpa_s
->p2p_persistent_go_freq
,
3477 wpa_s
->p2p_go_ht40
, wpa_s
->p2p_go_vht
,
3479 ssid
->mode
== WPAS_MODE_P2P_GO
?
3480 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
:
3485 static int wpas_p2p_disallowed_freq(struct wpa_global
*global
,
3488 if (freq_range_list_includes(&global
->p2p_go_avoid_freq
, freq
))
3490 return freq_range_list_includes(&global
->p2p_disallow_freq
, freq
);
3494 static void wpas_p2p_add_chan(struct p2p_reg_class
*reg
, u8 chan
)
3496 reg
->channel
[reg
->channels
] = chan
;
3501 static int wpas_p2p_default_channels(struct wpa_supplicant
*wpa_s
,
3502 struct p2p_channels
*chan
,
3503 struct p2p_channels
*cli_chan
)
3507 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3509 os_memset(cli_chan
, 0, sizeof(*cli_chan
));
3511 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for 2.4 GHz "
3514 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3515 chan
->reg_class
[cla
].reg_class
= 81;
3516 chan
->reg_class
[cla
].channels
= 0;
3517 for (i
= 0; i
< 11; i
++) {
3518 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 2412 + i
* 5))
3519 wpas_p2p_add_chan(&chan
->reg_class
[cla
], i
+ 1);
3521 if (chan
->reg_class
[cla
].channels
)
3524 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for lower 5 GHz "
3527 /* Operating class 115 - 5 GHz, channels 36-48 */
3528 chan
->reg_class
[cla
].reg_class
= 115;
3529 chan
->reg_class
[cla
].channels
= 0;
3530 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 36 * 5))
3531 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 36);
3532 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 40 * 5))
3533 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 40);
3534 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 44 * 5))
3535 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 44);
3536 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 48 * 5))
3537 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 48);
3538 if (chan
->reg_class
[cla
].channels
)
3541 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for higher 5 GHz "
3544 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3545 chan
->reg_class
[cla
].reg_class
= 124;
3546 chan
->reg_class
[cla
].channels
= 0;
3547 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 149 * 5))
3548 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 149);
3549 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 153 * 5))
3550 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 153);
3551 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 156 * 5))
3552 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 157);
3553 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 161 * 5))
3554 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 161);
3555 if (chan
->reg_class
[cla
].channels
)
3558 chan
->reg_classes
= cla
;
3563 static struct hostapd_hw_modes
* get_mode(struct hostapd_hw_modes
*modes
,
3565 enum hostapd_hw_mode mode
)
3569 for (i
= 0; i
< num_modes
; i
++) {
3570 if (modes
[i
].mode
== mode
)
3579 NOT_ALLOWED
, NO_IR
, ALLOWED
3582 static int has_channel(struct wpa_global
*global
,
3583 struct hostapd_hw_modes
*mode
, u8 chan
, int *flags
)
3588 freq
= (mode
->mode
== HOSTAPD_MODE_IEEE80211A
? 5000 : 2407) +
3590 if (wpas_p2p_disallowed_freq(global
, freq
))
3593 for (i
= 0; i
< mode
->num_channels
; i
++) {
3594 if (mode
->channels
[i
].chan
== chan
) {
3596 *flags
= mode
->channels
[i
].flag
;
3597 if (mode
->channels
[i
].flag
&
3598 (HOSTAPD_CHAN_DISABLED
|
3599 HOSTAPD_CHAN_RADAR
))
3601 if (mode
->channels
[i
].flag
& HOSTAPD_CHAN_NO_IR
)
3611 struct p2p_oper_class_map
{
3612 enum hostapd_hw_mode mode
;
3617 enum { BW20
, BW40PLUS
, BW40MINUS
, BW80
, BW2160
} bw
;
3620 static struct p2p_oper_class_map op_class
[] = {
3621 { HOSTAPD_MODE_IEEE80211G
, 81, 1, 13, 1, BW20
},
3622 #if 0 /* Do not enable HT40 on 2 GHz for now */
3623 { HOSTAPD_MODE_IEEE80211G
, 83, 1, 9, 1, BW40PLUS
},
3624 { HOSTAPD_MODE_IEEE80211G
, 84, 5, 13, 1, BW40MINUS
},
3626 { HOSTAPD_MODE_IEEE80211A
, 115, 36, 48, 4, BW20
},
3627 { HOSTAPD_MODE_IEEE80211A
, 124, 149, 161, 4, BW20
},
3628 { HOSTAPD_MODE_IEEE80211A
, 116, 36, 44, 8, BW40PLUS
},
3629 { HOSTAPD_MODE_IEEE80211A
, 117, 40, 48, 8, BW40MINUS
},
3630 { HOSTAPD_MODE_IEEE80211A
, 126, 149, 157, 8, BW40PLUS
},
3631 { HOSTAPD_MODE_IEEE80211A
, 127, 153, 161, 8, BW40MINUS
},
3634 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3635 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3636 * 80 MHz, but currently use the following definition for simplicity
3637 * (these center frequencies are not actual channels, which makes
3638 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3639 * removing invalid channels.
3641 { HOSTAPD_MODE_IEEE80211A
, 128, 36, 161, 4, BW80
},
3642 { HOSTAPD_MODE_IEEE80211AD
, 180, 1, 4, 1, BW2160
},
3643 { -1, 0, 0, 0, 0, BW20
}
3647 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant
*wpa_s
,
3648 struct hostapd_hw_modes
*mode
,
3651 u8 center_channels
[] = { 42, 58, 106, 122, 138, 155 };
3654 if (mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
3657 for (i
= 0; i
< ARRAY_SIZE(center_channels
); i
++)
3659 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3660 * so the center channel is 6 channels away from the start/end.
3662 if (channel
>= center_channels
[i
] - 6 &&
3663 channel
<= center_channels
[i
] + 6)
3664 return center_channels
[i
];
3670 static enum chan_allowed
wpas_p2p_verify_80mhz(struct wpa_supplicant
*wpa_s
,
3671 struct hostapd_hw_modes
*mode
,
3676 enum chan_allowed res
, ret
= ALLOWED
;
3678 center_chan
= wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3681 if (center_chan
>= 58 && center_chan
<= 138)
3682 return NOT_ALLOWED
; /* Do not allow DFS channels for P2P */
3684 /* check all the channels are available */
3685 for (i
= 0; i
< 4; i
++) {
3686 int adj_chan
= center_chan
- 6 + i
* 4;
3688 res
= has_channel(wpa_s
->global
, mode
, adj_chan
, &flags
);
3689 if (res
== NOT_ALLOWED
)
3694 if (i
== 0 && !(flags
& HOSTAPD_CHAN_VHT_10_70
))
3696 if (i
== 1 && !(flags
& HOSTAPD_CHAN_VHT_30_50
))
3698 if (i
== 2 && !(flags
& HOSTAPD_CHAN_VHT_50_30
))
3700 if (i
== 3 && !(flags
& HOSTAPD_CHAN_VHT_70_10
))
3708 static enum chan_allowed
wpas_p2p_verify_channel(struct wpa_supplicant
*wpa_s
,
3709 struct hostapd_hw_modes
*mode
,
3713 enum chan_allowed res
, res2
;
3715 res2
= res
= has_channel(wpa_s
->global
, mode
, channel
, &flag
);
3716 if (bw
== BW40MINUS
) {
3717 if (!(flag
& HOSTAPD_CHAN_HT40MINUS
))
3719 res2
= has_channel(wpa_s
->global
, mode
, channel
- 4, NULL
);
3720 } else if (bw
== BW40PLUS
) {
3721 if (!(flag
& HOSTAPD_CHAN_HT40PLUS
))
3723 res2
= has_channel(wpa_s
->global
, mode
, channel
+ 4, NULL
);
3724 } else if (bw
== BW80
) {
3725 res2
= wpas_p2p_verify_80mhz(wpa_s
, mode
, channel
, bw
);
3728 if (res
== NOT_ALLOWED
|| res2
== NOT_ALLOWED
)
3730 if (res
== NO_IR
|| res2
== NO_IR
)
3736 static int wpas_p2p_setup_channels(struct wpa_supplicant
*wpa_s
,
3737 struct p2p_channels
*chan
,
3738 struct p2p_channels
*cli_chan
)
3740 struct hostapd_hw_modes
*mode
;
3741 int cla
, op
, cli_cla
;
3743 if (wpa_s
->hw
.modes
== NULL
) {
3744 wpa_printf(MSG_DEBUG
, "P2P: Driver did not support fetching "
3745 "of all supported channels; assume dualband "
3747 return wpas_p2p_default_channels(wpa_s
, chan
, cli_chan
);
3752 for (op
= 0; op_class
[op
].op_class
; op
++) {
3753 struct p2p_oper_class_map
*o
= &op_class
[op
];
3755 struct p2p_reg_class
*reg
= NULL
, *cli_reg
= NULL
;
3757 mode
= get_mode(wpa_s
->hw
.modes
, wpa_s
->hw
.num_modes
, o
->mode
);
3760 if (mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
3761 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3762 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3763 enum chan_allowed res
;
3764 res
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3765 if (res
== ALLOWED
) {
3767 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u",
3769 reg
= &chan
->reg_class
[cla
];
3771 reg
->reg_class
= o
->op_class
;
3773 reg
->channel
[reg
->channels
] = ch
;
3775 } else if (res
== NO_IR
&&
3776 wpa_s
->conf
->p2p_add_cli_chan
) {
3777 if (cli_reg
== NULL
) {
3778 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u (client only)",
3780 cli_reg
= &cli_chan
->reg_class
[cli_cla
];
3782 cli_reg
->reg_class
= o
->op_class
;
3784 cli_reg
->channel
[cli_reg
->channels
] = ch
;
3785 cli_reg
->channels
++;
3789 wpa_hexdump(MSG_DEBUG
, "P2P: Channels",
3790 reg
->channel
, reg
->channels
);
3793 wpa_hexdump(MSG_DEBUG
, "P2P: Channels (client only)",
3794 cli_reg
->channel
, cli_reg
->channels
);
3798 chan
->reg_classes
= cla
;
3799 cli_chan
->reg_classes
= cli_cla
;
3805 int wpas_p2p_get_ht40_mode(struct wpa_supplicant
*wpa_s
,
3806 struct hostapd_hw_modes
*mode
, u8 channel
)
3809 enum chan_allowed ret
;
3811 for (op
= 0; op_class
[op
].op_class
; op
++) {
3812 struct p2p_oper_class_map
*o
= &op_class
[op
];
3815 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3816 if (o
->mode
!= HOSTAPD_MODE_IEEE80211A
||
3817 o
->bw
== BW20
|| ch
!= channel
)
3819 ret
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3821 return (o
->bw
== BW40MINUS
) ? -1 : 1;
3828 int wpas_p2p_get_vht80_center(struct wpa_supplicant
*wpa_s
,
3829 struct hostapd_hw_modes
*mode
, u8 channel
)
3831 if (!wpas_p2p_verify_channel(wpa_s
, mode
, channel
, BW80
))
3834 return wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3838 static int wpas_get_noa(void *ctx
, const u8
*interface_addr
, u8
*buf
,
3841 struct wpa_supplicant
*wpa_s
= ctx
;
3843 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3844 if (os_memcmp(wpa_s
->own_addr
, interface_addr
, ETH_ALEN
) == 0)
3850 return wpa_drv_get_noa(wpa_s
, buf
, buf_len
);
3854 struct wpa_supplicant
* wpas_get_p2p_go_iface(struct wpa_supplicant
*wpa_s
,
3855 const u8
*ssid
, size_t ssid_len
)
3857 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3858 struct wpa_ssid
*s
= wpa_s
->current_ssid
;
3861 if (s
->mode
!= WPAS_MODE_P2P_GO
&&
3862 s
->mode
!= WPAS_MODE_AP
&&
3863 s
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
3865 if (s
->ssid_len
!= ssid_len
||
3866 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
3876 struct wpa_supplicant
* wpas_get_p2p_client_iface(struct wpa_supplicant
*wpa_s
,
3877 const u8
*peer_dev_addr
)
3879 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3880 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
3883 if (ssid
->mode
!= WPAS_MODE_INFRA
)
3885 if (wpa_s
->wpa_state
!= WPA_COMPLETED
&&
3886 wpa_s
->wpa_state
!= WPA_GROUP_HANDSHAKE
)
3888 if (os_memcmp(wpa_s
->go_dev_addr
, peer_dev_addr
, ETH_ALEN
) == 0)
3896 static int wpas_go_connected(void *ctx
, const u8
*dev_addr
)
3898 struct wpa_supplicant
*wpa_s
= ctx
;
3900 return wpas_get_p2p_client_iface(wpa_s
, dev_addr
) != NULL
;
3904 static int wpas_is_concurrent_session_active(void *ctx
)
3906 struct wpa_supplicant
*wpa_s
= ctx
;
3907 struct wpa_supplicant
*ifs
;
3909 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
3912 if (ifs
->wpa_state
> WPA_ASSOCIATED
)
3919 static void wpas_p2p_debug_print(void *ctx
, int level
, const char *msg
)
3921 struct wpa_supplicant
*wpa_s
= ctx
;
3922 wpa_msg_global(wpa_s
, level
, "P2P: %s", msg
);
3926 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant
*wpa_s
,
3927 const char *conf_p2p_dev
)
3929 struct wpa_interface iface
;
3930 struct wpa_supplicant
*p2pdev_wpa_s
;
3932 char force_name
[100];
3935 ret
= os_snprintf(ifname
, sizeof(ifname
), P2P_MGMT_DEVICE_PREFIX
"%s",
3937 if (os_snprintf_error(sizeof(ifname
), ret
))
3939 force_name
[0] = '\0';
3940 wpa_s
->pending_interface_type
= WPA_IF_P2P_DEVICE
;
3941 ret
= wpa_drv_if_add(wpa_s
, WPA_IF_P2P_DEVICE
, ifname
, NULL
, NULL
,
3942 force_name
, wpa_s
->pending_interface_addr
, NULL
);
3944 wpa_printf(MSG_DEBUG
, "P2P: Failed to create P2P Device interface");
3947 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
3948 sizeof(wpa_s
->pending_interface_name
));
3950 os_memset(&iface
, 0, sizeof(iface
));
3952 iface
.ifname
= wpa_s
->pending_interface_name
;
3953 iface
.driver
= wpa_s
->driver
->name
;
3954 iface
.driver_param
= wpa_s
->conf
->driver_param
;
3957 * If a P2P Device configuration file was given, use it as the interface
3958 * configuration file (instead of using parent's configuration file.
3961 iface
.confname
= conf_p2p_dev
;
3962 iface
.ctrl_interface
= NULL
;
3964 iface
.confname
= wpa_s
->confname
;
3965 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
3967 iface
.conf_p2p_dev
= NULL
;
3969 p2pdev_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
);
3970 if (!p2pdev_wpa_s
) {
3971 wpa_printf(MSG_DEBUG
, "P2P: Failed to add P2P Device interface");
3974 p2pdev_wpa_s
->parent
= wpa_s
;
3975 wpa_s
->p2p_dev
= p2pdev_wpa_s
;
3977 wpa_s
->pending_interface_name
[0] = '\0';
3982 static void wpas_presence_resp(void *ctx
, const u8
*src
, u8 status
,
3983 const u8
*noa
, size_t noa_len
)
3985 struct wpa_supplicant
*wpa_s
, *intf
= ctx
;
3988 for (wpa_s
= intf
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3989 if (wpa_s
->waiting_presence_resp
)
3993 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No group interface was waiting for presence response");
3996 wpa_s
->waiting_presence_resp
= 0;
3998 wpa_snprintf_hex(hex
, sizeof(hex
), noa
, noa_len
);
3999 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PRESENCE_RESPONSE
"src=" MACSTR
4000 " status=%u noa=%s", MAC2STR(src
), status
, hex
);
4004 static int _wpas_p2p_in_progress(void *ctx
)
4006 struct wpa_supplicant
*wpa_s
= ctx
;
4007 return wpas_p2p_in_progress(wpa_s
);
4012 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4013 * @global: Pointer to global data from wpa_supplicant_init()
4014 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4015 * Returns: 0 on success, -1 on failure
4017 int wpas_p2p_init(struct wpa_global
*global
, struct wpa_supplicant
*wpa_s
)
4019 struct p2p_config p2p
;
4022 if (wpa_s
->conf
->p2p_disabled
)
4025 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
4031 os_memset(&p2p
, 0, sizeof(p2p
));
4033 p2p
.debug_print
= wpas_p2p_debug_print
;
4034 p2p
.p2p_scan
= wpas_p2p_scan
;
4035 p2p
.send_action
= wpas_send_action
;
4036 p2p
.send_action_done
= wpas_send_action_done
;
4037 p2p
.go_neg_completed
= wpas_go_neg_completed
;
4038 p2p
.go_neg_req_rx
= wpas_go_neg_req_rx
;
4039 p2p
.dev_found
= wpas_dev_found
;
4040 p2p
.dev_lost
= wpas_dev_lost
;
4041 p2p
.find_stopped
= wpas_find_stopped
;
4042 p2p
.start_listen
= wpas_start_listen
;
4043 p2p
.stop_listen
= wpas_stop_listen
;
4044 p2p
.send_probe_resp
= wpas_send_probe_resp
;
4045 p2p
.sd_request
= wpas_sd_request
;
4046 p2p
.sd_response
= wpas_sd_response
;
4047 p2p
.prov_disc_req
= wpas_prov_disc_req
;
4048 p2p
.prov_disc_resp
= wpas_prov_disc_resp
;
4049 p2p
.prov_disc_fail
= wpas_prov_disc_fail
;
4050 p2p
.invitation_process
= wpas_invitation_process
;
4051 p2p
.invitation_received
= wpas_invitation_received
;
4052 p2p
.invitation_result
= wpas_invitation_result
;
4053 p2p
.get_noa
= wpas_get_noa
;
4054 p2p
.go_connected
= wpas_go_connected
;
4055 p2p
.presence_resp
= wpas_presence_resp
;
4056 p2p
.is_concurrent_session_active
= wpas_is_concurrent_session_active
;
4057 p2p
.is_p2p_in_progress
= _wpas_p2p_in_progress
;
4059 os_memcpy(wpa_s
->global
->p2p_dev_addr
, wpa_s
->own_addr
, ETH_ALEN
);
4060 os_memcpy(p2p
.dev_addr
, wpa_s
->global
->p2p_dev_addr
, ETH_ALEN
);
4061 p2p
.dev_name
= wpa_s
->conf
->device_name
;
4062 p2p
.manufacturer
= wpa_s
->conf
->manufacturer
;
4063 p2p
.model_name
= wpa_s
->conf
->model_name
;
4064 p2p
.model_number
= wpa_s
->conf
->model_number
;
4065 p2p
.serial_number
= wpa_s
->conf
->serial_number
;
4067 os_memcpy(p2p
.uuid
, wpa_s
->wps
->uuid
, 16);
4068 p2p
.config_methods
= wpa_s
->wps
->config_methods
;
4071 if (wpas_p2p_setup_channels(wpa_s
, &p2p
.channels
, &p2p
.cli_channels
)) {
4072 wpa_printf(MSG_ERROR
,
4073 "P2P: Failed to configure supported channel list");
4077 if (wpa_s
->conf
->p2p_listen_reg_class
&&
4078 wpa_s
->conf
->p2p_listen_channel
) {
4079 p2p
.reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
4080 p2p
.channel
= wpa_s
->conf
->p2p_listen_channel
;
4081 p2p
.channel_forced
= 1;
4084 * Pick one of the social channels randomly as the listen
4087 if (p2p_config_get_random_social(&p2p
, &p2p
.reg_class
,
4088 &p2p
.channel
) != 0) {
4089 wpa_printf(MSG_ERROR
,
4090 "P2P: Failed to select random social channel as listen channel");
4093 p2p
.channel_forced
= 0;
4095 wpa_printf(MSG_DEBUG
, "P2P: Own listen channel: %d:%d",
4096 p2p
.reg_class
, p2p
.channel
);
4098 if (wpa_s
->conf
->p2p_oper_reg_class
&&
4099 wpa_s
->conf
->p2p_oper_channel
) {
4100 p2p
.op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
4101 p2p
.op_channel
= wpa_s
->conf
->p2p_oper_channel
;
4102 p2p
.cfg_op_channel
= 1;
4103 wpa_printf(MSG_DEBUG
, "P2P: Configured operating channel: "
4104 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4108 * Use random operation channel from 2.4 GHz band social
4109 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4110 * other preference is indicated.
4112 if (p2p_config_get_random_social(&p2p
, &p2p
.op_reg_class
,
4113 &p2p
.op_channel
) != 0) {
4114 wpa_printf(MSG_ERROR
,
4115 "P2P: Failed to select random social channel as operation channel");
4118 p2p
.cfg_op_channel
= 0;
4119 wpa_printf(MSG_DEBUG
, "P2P: Random operating channel: "
4120 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4123 if (wpa_s
->conf
->p2p_pref_chan
&& wpa_s
->conf
->num_p2p_pref_chan
) {
4124 p2p
.pref_chan
= wpa_s
->conf
->p2p_pref_chan
;
4125 p2p
.num_pref_chan
= wpa_s
->conf
->num_p2p_pref_chan
;
4128 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
4129 os_memcpy(p2p
.country
, wpa_s
->conf
->country
, 2);
4130 p2p
.country
[2] = 0x04;
4132 os_memcpy(p2p
.country
, "XX\x04", 3);
4134 os_memcpy(p2p
.pri_dev_type
, wpa_s
->conf
->device_type
,
4137 p2p
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
4138 os_memcpy(p2p
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
4139 p2p
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
4141 p2p
.concurrent_operations
= !!(wpa_s
->drv_flags
&
4142 WPA_DRIVER_FLAGS_P2P_CONCURRENT
);
4144 p2p
.max_peers
= 100;
4146 if (wpa_s
->conf
->p2p_ssid_postfix
) {
4147 p2p
.ssid_postfix_len
=
4148 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
);
4149 if (p2p
.ssid_postfix_len
> sizeof(p2p
.ssid_postfix
))
4150 p2p
.ssid_postfix_len
= sizeof(p2p
.ssid_postfix
);
4151 os_memcpy(p2p
.ssid_postfix
, wpa_s
->conf
->p2p_ssid_postfix
,
4152 p2p
.ssid_postfix_len
);
4155 p2p
.p2p_intra_bss
= wpa_s
->conf
->p2p_intra_bss
;
4157 p2p
.max_listen
= wpa_s
->max_remain_on_chan
;
4159 if (wpa_s
->conf
->p2p_passphrase_len
>= 8 &&
4160 wpa_s
->conf
->p2p_passphrase_len
<= 63)
4161 p2p
.passphrase_len
= wpa_s
->conf
->p2p_passphrase_len
;
4163 p2p
.passphrase_len
= 8;
4165 global
->p2p
= p2p_init(&p2p
);
4166 if (global
->p2p
== NULL
)
4168 global
->p2p_init_wpa_s
= wpa_s
;
4170 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
4171 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
4173 p2p_add_wps_vendor_extension(
4174 global
->p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
4177 p2p_set_no_go_freq(global
->p2p
, &wpa_s
->conf
->p2p_no_go_freq
);
4184 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4185 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4187 * This function deinitialize per-interface P2P data.
4189 void wpas_p2p_deinit(struct wpa_supplicant
*wpa_s
)
4191 if (wpa_s
->driver
&& wpa_s
->drv_priv
)
4192 wpa_drv_probe_req_report(wpa_s
, 0);
4194 if (wpa_s
->go_params
) {
4195 /* Clear any stored provisioning info */
4196 p2p_clear_provisioning_info(
4198 wpa_s
->go_params
->peer_device_addr
);
4201 os_free(wpa_s
->go_params
);
4202 wpa_s
->go_params
= NULL
;
4203 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
, wpa_s
, NULL
);
4204 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
4205 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4206 wpa_s
->p2p_long_listen
= 0;
4207 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
4208 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
4209 wpas_p2p_remove_pending_group_interface(wpa_s
);
4210 eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
);
4211 wpas_p2p_listen_work_done(wpa_s
);
4212 if (wpa_s
->p2p_send_action_work
) {
4213 os_free(wpa_s
->p2p_send_action_work
->ctx
);
4214 radio_work_done(wpa_s
->p2p_send_action_work
);
4215 wpa_s
->p2p_send_action_work
= NULL
;
4217 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
, wpa_s
, NULL
);
4219 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
4220 wpa_s
->p2p_oob_dev_pw
= NULL
;
4222 os_free(wpa_s
->p2p_group_common_freqs
);
4223 wpa_s
->p2p_group_common_freqs
= NULL
;
4224 wpa_s
->p2p_group_common_freqs_num
= 0;
4226 /* TODO: remove group interface from the driver if this wpa_s instance
4227 * is on top of a P2P group interface */
4232 * wpas_p2p_deinit_global - Deinitialize global P2P module
4233 * @global: Pointer to global data from wpa_supplicant_init()
4235 * This function deinitializes the global (per device) P2P module.
4237 static void wpas_p2p_deinit_global(struct wpa_global
*global
)
4239 struct wpa_supplicant
*wpa_s
, *tmp
;
4241 wpa_s
= global
->ifaces
;
4243 wpas_p2p_service_flush(global
->p2p_init_wpa_s
);
4245 /* Remove remaining P2P group interfaces */
4246 while (wpa_s
&& wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
)
4247 wpa_s
= wpa_s
->next
;
4249 tmp
= global
->ifaces
;
4252 tmp
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)) {
4257 /* Disconnect from the P2P group and deinit the interface */
4258 wpas_p2p_disconnect(tmp
);
4262 * Deinit GO data on any possibly remaining interface (if main
4263 * interface is used as GO).
4265 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
4266 if (wpa_s
->ap_iface
)
4267 wpas_p2p_group_deinit(wpa_s
);
4270 p2p_deinit(global
->p2p
);
4272 global
->p2p_init_wpa_s
= NULL
;
4276 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
)
4278 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
) &&
4279 wpa_s
->conf
->p2p_no_group_iface
)
4280 return 0; /* separate interface disabled per configuration */
4281 if (wpa_s
->drv_flags
&
4282 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
|
4283 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P
))
4284 return 1; /* P2P group requires a new interface in every case
4286 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CONCURRENT
))
4287 return 0; /* driver does not support concurrent operations */
4288 if (wpa_s
->global
->ifaces
->next
)
4289 return 1; /* more that one interface already in use */
4290 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
)
4291 return 1; /* this interface is already in use */
4296 static int wpas_p2p_start_go_neg(struct wpa_supplicant
*wpa_s
,
4297 const u8
*peer_addr
,
4298 enum p2p_wps_method wps_method
,
4299 int go_intent
, const u8
*own_interface_addr
,
4300 unsigned int force_freq
, int persistent_group
,
4301 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4303 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4304 persistent_group
= 2;
4307 * Increase GO config timeout if HT40 is used since it takes some time
4308 * to scan channels for coex purposes before the BSS can be started.
4310 p2p_set_config_timeout(wpa_s
->global
->p2p
,
4311 wpa_s
->p2p_go_ht40
? 255 : 100, 20);
4313 return p2p_connect(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4314 go_intent
, own_interface_addr
, force_freq
,
4315 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4316 ssid
? ssid
->ssid_len
: 0,
4317 wpa_s
->p2p_pd_before_go_neg
, pref_freq
,
4318 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4323 static int wpas_p2p_auth_go_neg(struct wpa_supplicant
*wpa_s
,
4324 const u8
*peer_addr
,
4325 enum p2p_wps_method wps_method
,
4326 int go_intent
, const u8
*own_interface_addr
,
4327 unsigned int force_freq
, int persistent_group
,
4328 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4330 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4331 persistent_group
= 2;
4333 return p2p_authorize(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4334 go_intent
, own_interface_addr
, force_freq
,
4335 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4336 ssid
? ssid
->ssid_len
: 0, pref_freq
,
4337 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4342 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant
*wpa_s
)
4344 wpa_s
->p2p_join_scan_count
++;
4345 wpa_printf(MSG_DEBUG
, "P2P: Join scan attempt %d",
4346 wpa_s
->p2p_join_scan_count
);
4347 if (wpa_s
->p2p_join_scan_count
> P2P_MAX_JOIN_SCAN_ATTEMPTS
) {
4348 wpa_printf(MSG_DEBUG
, "P2P: Failed to find GO " MACSTR
4349 " for join operationg - stop join attempt",
4350 MAC2STR(wpa_s
->pending_join_iface_addr
));
4351 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4352 if (wpa_s
->p2p_auto_pd
) {
4353 wpa_s
->p2p_auto_pd
= 0;
4354 wpa_msg_global(wpa_s
, MSG_INFO
,
4355 P2P_EVENT_PROV_DISC_FAILURE
4356 " p2p_dev_addr=" MACSTR
" status=N/A",
4357 MAC2STR(wpa_s
->pending_join_dev_addr
));
4360 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4361 P2P_EVENT_GROUP_FORMATION_FAILURE
);
4366 static int wpas_check_freq_conflict(struct wpa_supplicant
*wpa_s
, int freq
)
4369 unsigned int num
, i
;
4370 struct wpa_used_freq_data
*freqs
;
4372 if (wpas_p2p_num_unused_channels(wpa_s
) > 0) {
4373 /* Multiple channels are supported and not all are in use */
4377 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
4378 sizeof(struct wpa_used_freq_data
));
4382 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
4383 wpa_s
->num_multichan_concurrent
);
4385 for (i
= 0; i
< num
; i
++) {
4386 if (freqs
[i
].freq
== freq
) {
4387 wpa_printf(MSG_DEBUG
, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4394 wpa_printf(MSG_DEBUG
, "P2P: No valid operating frequencies");
4403 static int wpas_p2p_peer_go(struct wpa_supplicant
*wpa_s
,
4404 const u8
*peer_dev_addr
)
4406 struct wpa_bss
*bss
;
4409 bss
= wpa_bss_get_p2p_dev_addr(wpa_s
, peer_dev_addr
);
4412 if (bss
->last_update_idx
< wpa_s
->bss_update_idx
) {
4413 wpa_printf(MSG_DEBUG
, "P2P: Peer BSS entry not updated in the "
4418 updated
= os_reltime_before(&wpa_s
->p2p_auto_started
,
4420 wpa_printf(MSG_DEBUG
, "P2P: Current BSS entry for peer updated at "
4421 "%ld.%06ld (%supdated in last scan)",
4422 bss
->last_update
.sec
, bss
->last_update
.usec
,
4423 updated
? "": "not ");
4429 static void wpas_p2p_scan_res_join(struct wpa_supplicant
*wpa_s
,
4430 struct wpa_scan_results
*scan_res
)
4432 struct wpa_bss
*bss
= NULL
;
4434 u8 iface_addr
[ETH_ALEN
];
4436 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4438 if (wpa_s
->global
->p2p_disabled
)
4441 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS) for %sjoin",
4442 scan_res
? (int) scan_res
->num
: -1,
4443 wpa_s
->p2p_auto_join
? "auto_" : "");
4446 wpas_p2p_scan_res_handler(wpa_s
, scan_res
);
4448 if (wpa_s
->p2p_auto_pd
) {
4449 int join
= wpas_p2p_peer_go(wpa_s
,
4450 wpa_s
->pending_join_dev_addr
);
4452 wpa_s
->auto_pd_scan_retry
< P2P_AUTO_PD_SCAN_ATTEMPTS
) {
4453 wpa_s
->auto_pd_scan_retry
++;
4454 bss
= wpa_bss_get_bssid_latest(
4455 wpa_s
, wpa_s
->pending_join_dev_addr
);
4458 wpa_printf(MSG_DEBUG
, "P2P: Scan retry %d for "
4459 "the peer " MACSTR
" at %d MHz",
4460 wpa_s
->auto_pd_scan_retry
,
4462 pending_join_dev_addr
),
4464 wpas_p2p_join_scan_req(wpa_s
, freq
, NULL
, 0);
4472 wpa_s
->p2p_auto_pd
= 0;
4473 wpa_s
->pending_pd_use
= join
? AUTO_PD_JOIN
: AUTO_PD_GO_NEG
;
4474 wpa_printf(MSG_DEBUG
, "P2P: Auto PD with " MACSTR
" join=%d",
4475 MAC2STR(wpa_s
->pending_join_dev_addr
), join
);
4476 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4477 wpa_s
->pending_join_dev_addr
,
4478 wpa_s
->pending_pd_config_methods
, join
,
4479 0, wpa_s
->user_initiated_pd
) < 0) {
4480 wpa_s
->p2p_auto_pd
= 0;
4481 wpa_msg_global(wpa_s
, MSG_INFO
,
4482 P2P_EVENT_PROV_DISC_FAILURE
4483 " p2p_dev_addr=" MACSTR
" status=N/A",
4484 MAC2STR(wpa_s
->pending_join_dev_addr
));
4489 if (wpa_s
->p2p_auto_join
) {
4490 int join
= wpas_p2p_peer_go(wpa_s
,
4491 wpa_s
->pending_join_dev_addr
);
4493 wpa_printf(MSG_DEBUG
, "P2P: Peer was not found to be "
4494 "running a GO -> use GO Negotiation");
4495 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
,
4496 wpa_s
->p2p_pin
, wpa_s
->p2p_wps_method
,
4497 wpa_s
->p2p_persistent_group
, 0, 0, 0,
4498 wpa_s
->p2p_go_intent
,
4499 wpa_s
->p2p_connect_freq
,
4500 wpa_s
->p2p_persistent_id
,
4501 wpa_s
->p2p_pd_before_go_neg
,
4507 wpa_printf(MSG_DEBUG
, "P2P: Peer was found running GO%s -> "
4508 "try to join the group", join
? "" :
4511 wpa_s
->p2p_fallback_to_go_neg
= 1;
4514 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4515 wpa_s
->pending_join_iface_addr
);
4517 p2p_get_interface_addr(wpa_s
->global
->p2p
,
4518 wpa_s
->pending_join_dev_addr
,
4520 os_memcmp(iface_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) != 0
4521 && !wpa_bss_get_bssid(wpa_s
, wpa_s
->pending_join_iface_addr
)) {
4522 wpa_printf(MSG_DEBUG
, "P2P: Overwrite pending interface "
4523 "address for join from " MACSTR
" to " MACSTR
4524 " based on newly discovered P2P peer entry",
4525 MAC2STR(wpa_s
->pending_join_iface_addr
),
4526 MAC2STR(iface_addr
));
4527 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
,
4530 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4531 wpa_s
->pending_join_iface_addr
);
4534 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4535 "from P2P peer table: %d MHz", freq
);
4537 if (wpa_s
->p2p_join_ssid_len
) {
4538 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4539 MACSTR
" and SSID %s",
4540 MAC2STR(wpa_s
->pending_join_iface_addr
),
4541 wpa_ssid_txt(wpa_s
->p2p_join_ssid
,
4542 wpa_s
->p2p_join_ssid_len
));
4543 bss
= wpa_bss_get(wpa_s
, wpa_s
->pending_join_iface_addr
,
4544 wpa_s
->p2p_join_ssid
,
4545 wpa_s
->p2p_join_ssid_len
);
4548 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4549 MACSTR
, MAC2STR(wpa_s
->pending_join_iface_addr
));
4550 bss
= wpa_bss_get_bssid_latest(wpa_s
,
4551 wpa_s
->pending_join_iface_addr
);
4555 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4556 "from BSS table: %d MHz (SSID %s)", freq
,
4557 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
4562 if (wpas_check_freq_conflict(wpa_s
, freq
) > 0) {
4563 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4564 P2P_EVENT_GROUP_FORMATION_FAILURE
4565 "reason=FREQ_CONFLICT");
4569 wpa_printf(MSG_DEBUG
, "P2P: Send Provision Discovery Request "
4570 "prior to joining an existing group (GO " MACSTR
4572 MAC2STR(wpa_s
->pending_join_dev_addr
), freq
);
4573 wpa_s
->pending_pd_before_join
= 1;
4575 switch (wpa_s
->pending_join_wps_method
) {
4576 case WPS_PIN_DISPLAY
:
4577 method
= WPS_CONFIG_KEYPAD
;
4579 case WPS_PIN_KEYPAD
:
4580 method
= WPS_CONFIG_DISPLAY
;
4583 method
= WPS_CONFIG_PUSHBUTTON
;
4590 if ((p2p_get_provisioning_info(wpa_s
->global
->p2p
,
4591 wpa_s
->pending_join_dev_addr
) ==
4594 * We have already performed provision discovery for
4595 * joining the group. Proceed directly to join
4596 * operation without duplicated provision discovery. */
4597 wpa_printf(MSG_DEBUG
, "P2P: Provision discovery "
4598 "with " MACSTR
" already done - proceed to "
4600 MAC2STR(wpa_s
->pending_join_dev_addr
));
4601 wpa_s
->pending_pd_before_join
= 0;
4605 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4606 wpa_s
->pending_join_dev_addr
, method
, 1,
4607 freq
, wpa_s
->user_initiated_pd
) < 0) {
4608 wpa_printf(MSG_DEBUG
, "P2P: Failed to send Provision "
4609 "Discovery Request before joining an "
4611 wpa_s
->pending_pd_before_join
= 0;
4617 wpa_printf(MSG_DEBUG
, "P2P: Failed to find BSS/GO - try again later");
4618 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4619 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
4620 wpas_p2p_check_join_scan_limit(wpa_s
);
4624 /* Start join operation immediately */
4625 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
4629 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
4630 const u8
*ssid
, size_t ssid_len
)
4633 struct wpa_driver_scan_params params
;
4634 struct wpabuf
*wps_ie
, *ies
;
4636 int freqs
[2] = { 0, 0 };
4638 os_memset(¶ms
, 0, sizeof(params
));
4640 /* P2P Wildcard SSID */
4641 params
.num_ssids
= 1;
4642 if (ssid
&& ssid_len
) {
4643 params
.ssids
[0].ssid
= ssid
;
4644 params
.ssids
[0].ssid_len
= ssid_len
;
4645 os_memcpy(wpa_s
->p2p_join_ssid
, ssid
, ssid_len
);
4646 wpa_s
->p2p_join_ssid_len
= ssid_len
;
4648 params
.ssids
[0].ssid
= (u8
*) P2P_WILDCARD_SSID
;
4649 params
.ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
4650 wpa_s
->p2p_join_ssid_len
= 0;
4653 wpa_s
->wps
->dev
.p2p
= 1;
4654 wps_ie
= wps_build_probe_req_ie(DEV_PW_DEFAULT
, &wpa_s
->wps
->dev
,
4655 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
, 0,
4657 if (wps_ie
== NULL
) {
4658 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4662 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
4663 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
4665 wpabuf_free(wps_ie
);
4666 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4669 wpabuf_put_buf(ies
, wps_ie
);
4670 wpabuf_free(wps_ie
);
4672 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
4674 params
.p2p_probe
= 1;
4675 params
.extra_ies
= wpabuf_head(ies
);
4676 params
.extra_ies_len
= wpabuf_len(ies
);
4681 * If freq is not provided, check the operating freq of the GO
4682 * and use a single channel scan on if possible.
4684 oper_freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4685 wpa_s
->pending_join_iface_addr
);
4691 params
.freqs
= freqs
;
4695 * Run a scan to update BSS table and start Provision Discovery once
4696 * the new scan results become available.
4698 ret
= wpa_drv_scan(wpa_s
, ¶ms
);
4700 os_get_reltime(&wpa_s
->scan_trigger_time
);
4701 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_join
;
4702 wpa_s
->own_scan_requested
= 1;
4708 wpa_printf(MSG_DEBUG
, "P2P: Failed to start scan for join - "
4710 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4711 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
4712 wpas_p2p_check_join_scan_limit(wpa_s
);
4717 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
)
4719 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
4720 wpas_p2p_join_scan_req(wpa_s
, 0, NULL
, 0);
4724 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
4725 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
4726 int auto_join
, int op_freq
,
4727 const u8
*ssid
, size_t ssid_len
)
4729 wpa_printf(MSG_DEBUG
, "P2P: Request to join existing group (iface "
4730 MACSTR
" dev " MACSTR
" op_freq=%d)%s",
4731 MAC2STR(iface_addr
), MAC2STR(dev_addr
), op_freq
,
4732 auto_join
? " (auto_join)" : "");
4733 if (ssid
&& ssid_len
) {
4734 wpa_printf(MSG_DEBUG
, "P2P: Group SSID specified: %s",
4735 wpa_ssid_txt(ssid
, ssid_len
));
4738 wpa_s
->p2p_auto_pd
= 0;
4739 wpa_s
->p2p_auto_join
= !!auto_join
;
4740 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
, ETH_ALEN
);
4741 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
, ETH_ALEN
);
4742 wpa_s
->pending_join_wps_method
= wps_method
;
4744 /* Make sure we are not running find during connection establishment */
4745 wpas_p2p_stop_find(wpa_s
);
4747 wpa_s
->p2p_join_scan_count
= 0;
4748 wpas_p2p_join_scan_req(wpa_s
, op_freq
, ssid
, ssid_len
);
4753 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
4754 const u8
*ssid
, size_t ssid_len
)
4756 struct wpa_supplicant
*group
;
4757 struct p2p_go_neg_results res
;
4758 struct wpa_bss
*bss
;
4760 group
= wpas_p2p_get_group_iface(wpa_s
, 0, 0);
4763 if (group
!= wpa_s
) {
4764 os_memcpy(group
->p2p_pin
, wpa_s
->p2p_pin
,
4765 sizeof(group
->p2p_pin
));
4766 group
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
4769 * Need to mark the current interface for p2p_group_formation
4770 * when a separate group interface is not used. This is needed
4771 * to allow p2p_cancel stop a pending p2p_connect-join.
4772 * wpas_p2p_init_group_interface() addresses this for the case
4773 * where a separate group interface is used.
4775 wpa_s
->global
->p2p_group_formation
= wpa_s
;
4778 group
->p2p_in_provisioning
= 1;
4779 group
->p2p_fallback_to_go_neg
= wpa_s
->p2p_fallback_to_go_neg
;
4781 os_memset(&res
, 0, sizeof(res
));
4782 os_memcpy(res
.peer_device_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
);
4783 os_memcpy(res
.peer_interface_addr
, wpa_s
->pending_join_iface_addr
,
4785 res
.wps_method
= wpa_s
->pending_join_wps_method
;
4786 if (freq
&& ssid
&& ssid_len
) {
4788 res
.ssid_len
= ssid_len
;
4789 os_memcpy(res
.ssid
, ssid
, ssid_len
);
4791 bss
= wpa_bss_get_bssid_latest(wpa_s
,
4792 wpa_s
->pending_join_iface_addr
);
4794 res
.freq
= bss
->freq
;
4795 res
.ssid_len
= bss
->ssid_len
;
4796 os_memcpy(res
.ssid
, bss
->ssid
, bss
->ssid_len
);
4797 wpa_printf(MSG_DEBUG
, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4799 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
4803 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
4804 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel prior to "
4806 wpa_drv_cancel_remain_on_channel(wpa_s
);
4807 wpa_s
->off_channel_freq
= 0;
4808 wpa_s
->roc_waiting_drv_freq
= 0;
4810 wpas_start_wps_enrollee(group
, &res
);
4813 * Allow a longer timeout for join-a-running-group than normal 15
4814 * second group formation timeout since the GO may not have authorized
4815 * our connection yet.
4817 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
4818 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout
,
4825 static int wpas_p2p_setup_freqs(struct wpa_supplicant
*wpa_s
, int freq
,
4826 int *force_freq
, int *pref_freq
, int go
)
4828 struct wpa_used_freq_data
*freqs
;
4829 int res
, best_freq
, num_unused
;
4830 unsigned int freq_in_use
= 0, num
, i
;
4832 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
4833 sizeof(struct wpa_used_freq_data
));
4837 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
4838 wpa_s
->num_multichan_concurrent
);
4841 * It is possible that the total number of used frequencies is bigger
4842 * than the number of frequencies used for P2P, so get the system wide
4843 * number of unused frequencies.
4845 num_unused
= wpas_p2p_num_unused_channels(wpa_s
);
4847 wpa_printf(MSG_DEBUG
,
4848 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4849 freq
, wpa_s
->num_multichan_concurrent
, num
, num_unused
);
4854 ret
= p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
4856 ret
= p2p_supported_freq_cli(wpa_s
->global
->p2p
, freq
);
4858 wpa_printf(MSG_DEBUG
, "P2P: The forced channel "
4859 "(%u MHz) is not supported for P2P uses",
4865 for (i
= 0; i
< num
; i
++) {
4866 if (freqs
[i
].freq
== freq
)
4870 if (num_unused
<= 0 && !freq_in_use
) {
4871 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4876 wpa_printf(MSG_DEBUG
, "P2P: Trying to force us to use the "
4877 "requested channel (%u MHz)", freq
);
4882 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
4884 /* We have a candidate frequency to use */
4885 if (best_freq
> 0) {
4886 if (*pref_freq
== 0 && num_unused
> 0) {
4887 wpa_printf(MSG_DEBUG
, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4889 *pref_freq
= best_freq
;
4891 wpa_printf(MSG_DEBUG
, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4893 *force_freq
= best_freq
;
4895 } else if (num_unused
> 0) {
4896 wpa_printf(MSG_DEBUG
,
4897 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4900 wpa_printf(MSG_DEBUG
,
4901 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4915 * wpas_p2p_connect - Request P2P Group Formation to be started
4916 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4917 * @peer_addr: Address of the peer P2P Device
4918 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4919 * @persistent_group: Whether to create a persistent group
4920 * @auto_join: Whether to select join vs. GO Negotiation automatically
4921 * @join: Whether to join an existing group (as a client) instead of starting
4922 * Group Owner negotiation; @peer_addr is BSSID in that case
4923 * @auth: Whether to only authorize the connection instead of doing that and
4924 * initiating Group Owner negotiation
4925 * @go_intent: GO Intent or -1 to use default
4926 * @freq: Frequency for the group or 0 for auto-selection
4927 * @persistent_id: Persistent group credentials to use for forcing GO
4928 * parameters or -1 to generate new values (SSID/passphrase)
4929 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4930 * interoperability workaround when initiating group formation
4931 * @ht40: Start GO with 40 MHz channel width
4932 * @vht: Start GO with VHT support
4933 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4934 * failure, -2 on failure due to channel not currently available,
4935 * -3 if forced channel is not supported
4937 int wpas_p2p_connect(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
4938 const char *pin
, enum p2p_wps_method wps_method
,
4939 int persistent_group
, int auto_join
, int join
, int auth
,
4940 int go_intent
, int freq
, int persistent_id
, int pd
,
4943 int force_freq
= 0, pref_freq
= 0;
4945 enum wpa_driver_if_type iftype
;
4947 struct wpa_ssid
*ssid
= NULL
;
4949 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4952 if (persistent_id
>= 0) {
4953 ssid
= wpa_config_get_network(wpa_s
->conf
, persistent_id
);
4954 if (ssid
== NULL
|| ssid
->disabled
!= 2 ||
4955 ssid
->mode
!= WPAS_MODE_P2P_GO
)
4959 os_free(wpa_s
->global
->add_psk
);
4960 wpa_s
->global
->add_psk
= NULL
;
4962 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
4965 go_intent
= wpa_s
->conf
->p2p_go_intent
;
4968 wpa_s
->p2p_long_listen
= 0;
4970 wpa_s
->p2p_wps_method
= wps_method
;
4971 wpa_s
->p2p_persistent_group
= !!persistent_group
;
4972 wpa_s
->p2p_persistent_id
= persistent_id
;
4973 wpa_s
->p2p_go_intent
= go_intent
;
4974 wpa_s
->p2p_connect_freq
= freq
;
4975 wpa_s
->p2p_fallback_to_go_neg
= 0;
4976 wpa_s
->p2p_pd_before_go_neg
= !!pd
;
4977 wpa_s
->p2p_go_ht40
= !!ht40
;
4978 wpa_s
->p2p_go_vht
= !!vht
;
4981 os_strlcpy(wpa_s
->p2p_pin
, pin
, sizeof(wpa_s
->p2p_pin
));
4982 else if (wps_method
== WPS_PIN_DISPLAY
) {
4983 ret
= wps_generate_pin();
4984 res
= os_snprintf(wpa_s
->p2p_pin
, sizeof(wpa_s
->p2p_pin
),
4986 if (os_snprintf_error(sizeof(wpa_s
->p2p_pin
), res
))
4987 wpa_s
->p2p_pin
[sizeof(wpa_s
->p2p_pin
) - 1] = '\0';
4988 wpa_printf(MSG_DEBUG
, "P2P: Randomly generated PIN: %s",
4991 wpa_s
->p2p_pin
[0] = '\0';
4993 if (join
|| auto_join
) {
4994 u8 iface_addr
[ETH_ALEN
], dev_addr
[ETH_ALEN
];
4996 wpa_printf(MSG_DEBUG
, "P2P: Authorize invitation to "
4997 "connect a running group from " MACSTR
,
4998 MAC2STR(peer_addr
));
4999 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
5002 os_memcpy(dev_addr
, peer_addr
, ETH_ALEN
);
5003 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, peer_addr
,
5005 os_memcpy(iface_addr
, peer_addr
, ETH_ALEN
);
5006 p2p_get_dev_addr(wpa_s
->global
->p2p
, peer_addr
,
5010 os_get_reltime(&wpa_s
->p2p_auto_started
);
5011 wpa_printf(MSG_DEBUG
, "P2P: Auto join started at "
5013 wpa_s
->p2p_auto_started
.sec
,
5014 wpa_s
->p2p_auto_started
.usec
);
5016 wpa_s
->user_initiated_pd
= 1;
5017 if (wpas_p2p_join(wpa_s
, iface_addr
, dev_addr
, wps_method
,
5018 auto_join
, freq
, NULL
, 0) < 0)
5023 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
5027 wpas_p2p_set_own_freq_preference(wpa_s
,
5028 force_freq
? force_freq
: pref_freq
);
5030 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
5032 if (wpa_s
->create_p2p_iface
) {
5033 /* Prepare to add a new interface for the group */
5034 iftype
= WPA_IF_P2P_GROUP
;
5035 if (go_intent
== 15)
5036 iftype
= WPA_IF_P2P_GO
;
5037 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
5038 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
5039 "interface for the group");
5043 if_addr
= wpa_s
->pending_interface_addr
;
5045 if_addr
= wpa_s
->own_addr
;
5048 if (wpas_p2p_auth_go_neg(wpa_s
, peer_addr
, wps_method
,
5050 force_freq
, persistent_group
, ssid
,
5056 if (wpas_p2p_start_go_neg(wpa_s
, peer_addr
, wps_method
,
5057 go_intent
, if_addr
, force_freq
,
5058 persistent_group
, ssid
, pref_freq
) < 0) {
5059 if (wpa_s
->create_p2p_iface
)
5060 wpas_p2p_remove_pending_group_interface(wpa_s
);
5068 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5069 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5070 * @freq: Frequency of the channel in MHz
5071 * @duration: Duration of the stay on the channel in milliseconds
5073 * This callback is called when the driver indicates that it has started the
5074 * requested remain-on-channel duration.
5076 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5077 unsigned int freq
, unsigned int duration
)
5079 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5081 if (wpa_s
->off_channel_freq
== wpa_s
->pending_listen_freq
) {
5082 p2p_listen_cb(wpa_s
->global
->p2p
, wpa_s
->pending_listen_freq
,
5083 wpa_s
->pending_listen_duration
);
5084 wpa_s
->pending_listen_freq
= 0;
5086 wpa_printf(MSG_DEBUG
, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5087 wpa_s
->off_channel_freq
, wpa_s
->pending_listen_freq
,
5093 static int wpas_p2p_listen_start(struct wpa_supplicant
*wpa_s
,
5094 unsigned int timeout
)
5096 /* Limit maximum Listen state time based on driver limitation. */
5097 if (timeout
> wpa_s
->max_remain_on_chan
)
5098 timeout
= wpa_s
->max_remain_on_chan
;
5100 return p2p_listen(wpa_s
->global
->p2p
, timeout
);
5105 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5106 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5107 * @freq: Frequency of the channel in MHz
5109 * This callback is called when the driver indicates that a remain-on-channel
5110 * operation has been completed, i.e., the duration on the requested channel
5113 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5116 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel callback "
5117 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5118 wpa_s
->p2p_long_listen
, offchannel_pending_action_tx(wpa_s
));
5119 wpas_p2p_listen_work_done(wpa_s
);
5120 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5122 if (p2p_listen_end(wpa_s
->global
->p2p
, freq
) > 0)
5123 return; /* P2P module started a new operation */
5124 if (offchannel_pending_action_tx(wpa_s
))
5126 if (wpa_s
->p2p_long_listen
> 0)
5127 wpa_s
->p2p_long_listen
-= wpa_s
->max_remain_on_chan
;
5128 if (wpa_s
->p2p_long_listen
> 0) {
5129 wpa_printf(MSG_DEBUG
, "P2P: Continuing long Listen state");
5130 wpas_p2p_listen_start(wpa_s
, wpa_s
->p2p_long_listen
);
5133 * When listen duration is over, stop listen & update p2p_state
5136 p2p_stop_listen(wpa_s
->global
->p2p
);
5142 * wpas_p2p_group_remove - Remove a P2P group
5143 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5144 * @ifname: Network interface name of the group interface or "*" to remove all
5146 * Returns: 0 on success, -1 on failure
5148 * This function is used to remove a P2P group. This can be used to disconnect
5149 * from a group in which the local end is a P2P Client or to end a P2P Group in
5150 * case the local end is the Group Owner. If a virtual network interface was
5151 * created for this group, that interface will be removed. Otherwise, only the
5152 * configured P2P group network will be removed from the interface.
5154 int wpas_p2p_group_remove(struct wpa_supplicant
*wpa_s
, const char *ifname
)
5156 struct wpa_global
*global
= wpa_s
->global
;
5157 struct wpa_supplicant
*calling_wpa_s
= wpa_s
;
5159 if (os_strcmp(ifname
, "*") == 0) {
5160 struct wpa_supplicant
*prev
;
5161 wpa_s
= global
->ifaces
;
5164 wpa_s
= wpa_s
->next
;
5165 if (prev
->p2p_group_interface
!=
5166 NOT_P2P_GROUP_INTERFACE
||
5167 (prev
->current_ssid
&&
5168 prev
->current_ssid
->p2p_group
))
5169 wpas_p2p_disconnect_safely(prev
, calling_wpa_s
);
5174 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
5175 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
5179 return wpas_p2p_disconnect_safely(wpa_s
, calling_wpa_s
);
5183 static int wpas_p2p_select_go_freq(struct wpa_supplicant
*wpa_s
, int freq
)
5188 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 2.4 GHz "
5190 if (wpa_s
->best_24_freq
> 0 &&
5191 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5192 wpa_s
->best_24_freq
)) {
5193 freq
= wpa_s
->best_24_freq
;
5194 wpa_printf(MSG_DEBUG
, "P2P: Use best 2.4 GHz band "
5195 "channel: %d MHz", freq
);
5197 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5199 freq
= 2412 + (r
% 3) * 25;
5200 wpa_printf(MSG_DEBUG
, "P2P: Use random 2.4 GHz band "
5201 "channel: %d MHz", freq
);
5206 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 5 GHz "
5208 if (wpa_s
->best_5_freq
> 0 &&
5209 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5210 wpa_s
->best_5_freq
)) {
5211 freq
= wpa_s
->best_5_freq
;
5212 wpa_printf(MSG_DEBUG
, "P2P: Use best 5 GHz band "
5213 "channel: %d MHz", freq
);
5215 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5217 freq
= 5180 + (r
% 4) * 20;
5218 if (!p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5219 wpa_printf(MSG_DEBUG
, "P2P: Could not select "
5220 "5 GHz channel for P2P group");
5223 wpa_printf(MSG_DEBUG
, "P2P: Use random 5 GHz band "
5224 "channel: %d MHz", freq
);
5228 if (freq
> 0 && !p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5229 wpa_printf(MSG_DEBUG
, "P2P: The forced channel for GO "
5230 "(%u MHz) is not supported for P2P uses",
5239 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant
*wpa_s
,
5240 struct p2p_go_neg_results
*params
,
5241 const struct p2p_channels
*channels
)
5245 /* first try some random selection of the social channels */
5246 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5249 for (i
= 0; i
< 3; i
++) {
5250 params
->freq
= 2412 + ((r
+ i
) % 3) * 25;
5251 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5252 freq_included(channels
, params
->freq
) &&
5253 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5257 /* try all channels in reg. class 81 */
5258 for (i
= 0; i
< 11; i
++) {
5259 params
->freq
= 2412 + i
* 5;
5260 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5261 freq_included(channels
, params
->freq
) &&
5262 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5266 /* try social channel class 180 channel 2 */
5267 params
->freq
= 58320 + 1 * 2160;
5268 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5269 freq_included(channels
, params
->freq
) &&
5270 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5273 /* try all channels in reg. class 180 */
5274 for (i
= 0; i
< 4; i
++) {
5275 params
->freq
= 58320 + i
* 2160;
5276 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5277 freq_included(channels
, params
->freq
) &&
5278 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5282 wpa_printf(MSG_DEBUG
, "P2P: No 2.4 and 60 GHz channel allowed");
5285 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz (no preference known)",
5291 static int wpas_p2p_init_go_params(struct wpa_supplicant
*wpa_s
,
5292 struct p2p_go_neg_results
*params
,
5293 int freq
, int ht40
, int vht
,
5294 const struct p2p_channels
*channels
)
5296 struct wpa_used_freq_data
*freqs
;
5297 unsigned int pref_freq
, cand_freq
;
5298 unsigned int num
, i
;
5300 os_memset(params
, 0, sizeof(*params
));
5301 params
->role_go
= 1;
5302 params
->ht40
= ht40
;
5305 if (!freq_included(channels
, freq
)) {
5306 wpa_printf(MSG_DEBUG
, "P2P: Forced GO freq %d MHz not "
5310 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on forced "
5311 "frequency %d MHz", freq
);
5312 params
->freq
= freq
;
5313 } else if (wpa_s
->conf
->p2p_oper_reg_class
== 81 &&
5314 wpa_s
->conf
->p2p_oper_channel
>= 1 &&
5315 wpa_s
->conf
->p2p_oper_channel
<= 11 &&
5316 freq_included(channels
,
5317 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5318 params
->freq
= 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5319 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5320 "frequency %d MHz", params
->freq
);
5321 } else if ((wpa_s
->conf
->p2p_oper_reg_class
== 115 ||
5322 wpa_s
->conf
->p2p_oper_reg_class
== 116 ||
5323 wpa_s
->conf
->p2p_oper_reg_class
== 117 ||
5324 wpa_s
->conf
->p2p_oper_reg_class
== 124 ||
5325 wpa_s
->conf
->p2p_oper_reg_class
== 126 ||
5326 wpa_s
->conf
->p2p_oper_reg_class
== 127) &&
5327 freq_included(channels
,
5328 5000 + 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5329 params
->freq
= 5000 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5330 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5331 "frequency %d MHz", params
->freq
);
5332 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5333 wpa_s
->best_overall_freq
> 0 &&
5334 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5335 wpa_s
->best_overall_freq
) &&
5336 freq_included(channels
, wpa_s
->best_overall_freq
)) {
5337 params
->freq
= wpa_s
->best_overall_freq
;
5338 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best overall "
5339 "channel %d MHz", params
->freq
);
5340 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5341 wpa_s
->best_24_freq
> 0 &&
5342 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5343 wpa_s
->best_24_freq
) &&
5344 freq_included(channels
, wpa_s
->best_24_freq
)) {
5345 params
->freq
= wpa_s
->best_24_freq
;
5346 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 2.4 GHz "
5347 "channel %d MHz", params
->freq
);
5348 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5349 wpa_s
->best_5_freq
> 0 &&
5350 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5351 wpa_s
->best_5_freq
) &&
5352 freq_included(channels
, wpa_s
->best_5_freq
)) {
5353 params
->freq
= wpa_s
->best_5_freq
;
5354 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 5 GHz "
5355 "channel %d MHz", params
->freq
);
5356 } else if ((pref_freq
= p2p_get_pref_freq(wpa_s
->global
->p2p
,
5358 params
->freq
= pref_freq
;
5359 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz from preferred "
5360 "channels", params
->freq
);
5362 /* no preference, select some channel */
5363 if (wpas_p2p_select_freq_no_pref(wpa_s
, params
, channels
) < 0)
5367 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
5368 sizeof(struct wpa_used_freq_data
));
5372 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
5373 wpa_s
->num_multichan_concurrent
);
5375 cand_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
5377 /* First try the best used frequency if possible */
5378 if (!freq
&& cand_freq
> 0 && freq_included(channels
, cand_freq
)) {
5379 params
->freq
= cand_freq
;
5381 /* Try any of the used frequencies */
5382 for (i
= 0; i
< num
; i
++) {
5383 if (freq_included(channels
, freqs
[i
].freq
)) {
5384 wpa_printf(MSG_DEBUG
, "P2P: Force GO on a channel we are already using (%u MHz)",
5386 params
->freq
= freqs
[i
].freq
;
5392 if (wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5393 wpa_printf(MSG_DEBUG
, "P2P: Cannot force GO on any of the channels we are already using");
5397 wpa_printf(MSG_DEBUG
, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5401 for (i
= 0; i
< num
; i
++) {
5402 if (freqs
[i
].freq
== freq
)
5407 if (wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5409 wpa_printf(MSG_DEBUG
, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq
);
5413 wpa_printf(MSG_DEBUG
, "P2P: Use one of the free channels");
5423 static struct wpa_supplicant
*
5424 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
5427 struct wpa_supplicant
*group_wpa_s
;
5429 if (!wpas_p2p_create_iface(wpa_s
)) {
5430 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use same interface for group "
5432 wpa_s
->p2p_first_connection_timeout
= 0;
5436 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
5437 WPA_IF_P2P_CLIENT
) < 0) {
5438 wpa_msg_global(wpa_s
, MSG_ERROR
,
5439 "P2P: Failed to add group interface");
5442 group_wpa_s
= wpas_p2p_init_group_interface(wpa_s
, go
);
5443 if (group_wpa_s
== NULL
) {
5444 wpa_msg_global(wpa_s
, MSG_ERROR
,
5445 "P2P: Failed to initialize group interface");
5446 wpas_p2p_remove_pending_group_interface(wpa_s
);
5450 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use separate group interface %s",
5451 group_wpa_s
->ifname
);
5452 group_wpa_s
->p2p_first_connection_timeout
= 0;
5458 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5459 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5460 * @persistent_group: Whether to create a persistent group
5461 * @freq: Frequency for the group or 0 to indicate no hardcoding
5462 * @ht40: Start GO with 40 MHz channel width
5463 * @vht: Start GO with VHT support
5464 * Returns: 0 on success, -1 on failure
5466 * This function creates a new P2P group with the local end as the Group Owner,
5467 * i.e., without using Group Owner Negotiation.
5469 int wpas_p2p_group_add(struct wpa_supplicant
*wpa_s
, int persistent_group
,
5470 int freq
, int ht40
, int vht
)
5472 struct p2p_go_neg_results params
;
5474 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5477 os_free(wpa_s
->global
->add_psk
);
5478 wpa_s
->global
->add_psk
= NULL
;
5480 /* Make sure we are not running find during connection establishment */
5481 wpa_printf(MSG_DEBUG
, "P2P: Stop any on-going P2P FIND");
5482 wpas_p2p_stop_find_oper(wpa_s
);
5484 freq
= wpas_p2p_select_go_freq(wpa_s
, freq
);
5488 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
, vht
, NULL
))
5491 !p2p_supported_freq_go(wpa_s
->global
->p2p
, params
.freq
)) {
5492 wpa_printf(MSG_DEBUG
, "P2P: The selected channel for GO "
5493 "(%u MHz) is not supported for P2P uses",
5497 p2p_go_params(wpa_s
->global
->p2p
, ¶ms
);
5498 params
.persistent_group
= persistent_group
;
5500 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, 0, 1);
5503 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
5509 static int wpas_start_p2p_client(struct wpa_supplicant
*wpa_s
,
5510 struct wpa_ssid
*params
, int addr_allocated
,
5513 struct wpa_ssid
*ssid
;
5515 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 0);
5518 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
5520 wpa_supplicant_ap_deinit(wpa_s
);
5522 ssid
= wpa_config_add_network(wpa_s
->conf
);
5525 wpa_config_set_network_defaults(ssid
);
5526 ssid
->temporary
= 1;
5527 ssid
->proto
= WPA_PROTO_RSN
;
5528 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
5529 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
5530 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
5531 ssid
->ssid
= os_malloc(params
->ssid_len
);
5532 if (ssid
->ssid
== NULL
) {
5533 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
5536 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
5537 ssid
->ssid_len
= params
->ssid_len
;
5538 ssid
->p2p_group
= 1;
5539 ssid
->export_keys
= 1;
5540 if (params
->psk_set
) {
5541 os_memcpy(ssid
->psk
, params
->psk
, 32);
5544 if (params
->passphrase
)
5545 ssid
->passphrase
= os_strdup(params
->passphrase
);
5547 wpa_s
->show_group_started
= 1;
5548 wpa_s
->p2p_in_invitation
= 1;
5549 wpa_s
->p2p_invite_go_freq
= freq
;
5551 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
5553 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
5554 wpas_p2p_group_formation_timeout
,
5555 wpa_s
->parent
, NULL
);
5556 wpa_supplicant_select_network(wpa_s
, ssid
);
5562 int wpas_p2p_group_add_persistent(struct wpa_supplicant
*wpa_s
,
5563 struct wpa_ssid
*ssid
, int addr_allocated
,
5564 int force_freq
, int neg_freq
, int ht40
,
5565 int vht
, const struct p2p_channels
*channels
,
5566 int connection_timeout
)
5568 struct p2p_go_neg_results params
;
5571 if (ssid
->disabled
!= 2 || ssid
->ssid
== NULL
)
5574 if (wpas_get_p2p_group(wpa_s
, ssid
->ssid
, ssid
->ssid_len
, &go
) &&
5575 go
== (ssid
->mode
== WPAS_MODE_P2P_GO
)) {
5576 wpa_printf(MSG_DEBUG
, "P2P: Requested persistent group is "
5581 os_free(wpa_s
->global
->add_psk
);
5582 wpa_s
->global
->add_psk
= NULL
;
5584 /* Make sure we are not running find during connection establishment */
5585 wpas_p2p_stop_find_oper(wpa_s
);
5587 wpa_s
->p2p_fallback_to_go_neg
= 0;
5589 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
5590 if (force_freq
> 0) {
5591 freq
= wpas_p2p_select_go_freq(wpa_s
, force_freq
);
5595 freq
= wpas_p2p_select_go_freq(wpa_s
, neg_freq
);
5597 (freq
> 0 && !freq_included(channels
, freq
)))
5603 (freq
> 0 && !freq_included(channels
, freq
)))
5607 if (ssid
->mode
== WPAS_MODE_INFRA
)
5608 return wpas_start_p2p_client(wpa_s
, ssid
, addr_allocated
, freq
);
5610 if (ssid
->mode
!= WPAS_MODE_P2P_GO
)
5613 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
, vht
, channels
))
5617 params
.psk_set
= ssid
->psk_set
;
5619 os_memcpy(params
.psk
, ssid
->psk
, sizeof(params
.psk
));
5620 if (ssid
->passphrase
) {
5621 if (os_strlen(ssid
->passphrase
) >= sizeof(params
.passphrase
)) {
5622 wpa_printf(MSG_ERROR
, "P2P: Invalid passphrase in "
5623 "persistent group");
5626 os_strlcpy(params
.passphrase
, ssid
->passphrase
,
5627 sizeof(params
.passphrase
));
5629 os_memcpy(params
.ssid
, ssid
->ssid
, ssid
->ssid_len
);
5630 params
.ssid_len
= ssid
->ssid_len
;
5631 params
.persistent_group
= 1;
5633 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 1);
5637 p2p_channels_to_freqs(channels
, params
.freq_list
, P2P_MAX_CHANNELS
);
5639 wpa_s
->p2p_first_connection_timeout
= connection_timeout
;
5640 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
5646 static void wpas_p2p_ie_update(void *ctx
, struct wpabuf
*beacon_ies
,
5647 struct wpabuf
*proberesp_ies
)
5649 struct wpa_supplicant
*wpa_s
= ctx
;
5650 if (wpa_s
->ap_iface
) {
5651 struct hostapd_data
*hapd
= wpa_s
->ap_iface
->bss
[0];
5652 if (!(hapd
->conf
->p2p
& P2P_GROUP_OWNER
)) {
5653 wpabuf_free(beacon_ies
);
5654 wpabuf_free(proberesp_ies
);
5658 wpabuf_free(hapd
->p2p_beacon_ie
);
5659 hapd
->p2p_beacon_ie
= beacon_ies
;
5661 wpabuf_free(hapd
->p2p_probe_resp_ie
);
5662 hapd
->p2p_probe_resp_ie
= proberesp_ies
;
5664 wpabuf_free(beacon_ies
);
5665 wpabuf_free(proberesp_ies
);
5667 wpa_supplicant_ap_update_beacon(wpa_s
);
5671 static void wpas_p2p_idle_update(void *ctx
, int idle
)
5673 struct wpa_supplicant
*wpa_s
= ctx
;
5674 if (!wpa_s
->ap_iface
)
5676 wpa_printf(MSG_DEBUG
, "P2P: GO - group %sidle", idle
? "" : "not ");
5678 if (wpa_s
->global
->p2p_fail_on_wps_complete
&&
5679 wpa_s
->p2p_in_provisioning
) {
5680 wpas_p2p_grpform_fail_after_wps(wpa_s
);
5683 wpas_p2p_set_group_idle_timeout(wpa_s
);
5685 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
5689 struct p2p_group
* wpas_p2p_group_init(struct wpa_supplicant
*wpa_s
,
5690 struct wpa_ssid
*ssid
)
5692 struct p2p_group
*group
;
5693 struct p2p_group_config
*cfg
;
5695 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5698 cfg
= os_zalloc(sizeof(*cfg
));
5702 if (ssid
->p2p_persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
5703 cfg
->persistent_group
= 2;
5704 else if (ssid
->p2p_persistent_group
)
5705 cfg
->persistent_group
= 1;
5706 os_memcpy(cfg
->interface_addr
, wpa_s
->own_addr
, ETH_ALEN
);
5707 if (wpa_s
->max_stations
&&
5708 wpa_s
->max_stations
< wpa_s
->conf
->max_num_sta
)
5709 cfg
->max_clients
= wpa_s
->max_stations
;
5711 cfg
->max_clients
= wpa_s
->conf
->max_num_sta
;
5712 os_memcpy(cfg
->ssid
, ssid
->ssid
, ssid
->ssid_len
);
5713 cfg
->ssid_len
= ssid
->ssid_len
;
5714 cfg
->freq
= ssid
->frequency
;
5715 cfg
->cb_ctx
= wpa_s
;
5716 cfg
->ie_update
= wpas_p2p_ie_update
;
5717 cfg
->idle_update
= wpas_p2p_idle_update
;
5719 group
= p2p_group_init(wpa_s
->global
->p2p
, cfg
);
5722 if (ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
5723 p2p_group_notif_formation_done(group
);
5724 wpa_s
->p2p_group
= group
;
5729 void wpas_p2p_wps_success(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
5732 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
5734 if (!wpa_s
->p2p_in_provisioning
) {
5735 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS success event - P2P "
5736 "provisioning not in progress");
5740 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
5741 u8 go_dev_addr
[ETH_ALEN
];
5742 os_memcpy(go_dev_addr
, wpa_s
->bssid
, ETH_ALEN
);
5743 wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
5745 /* Clear any stored provisioning info */
5746 p2p_clear_provisioning_info(wpa_s
->global
->p2p
, go_dev_addr
);
5749 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
5751 wpa_s
->p2p_go_group_formation_completed
= 1;
5752 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
5754 * Use a separate timeout for initial data connection to
5755 * complete to allow the group to be removed automatically if
5756 * something goes wrong in this step before the P2P group idle
5757 * timeout mechanism is taken into use.
5759 wpa_dbg(wpa_s
, MSG_DEBUG
,
5760 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5761 P2P_MAX_INITIAL_CONN_WAIT
);
5762 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
5763 wpas_p2p_group_formation_timeout
,
5764 wpa_s
->parent
, NULL
);
5767 * Use a separate timeout for initial data connection to
5768 * complete to allow the group to be removed automatically if
5769 * the client does not complete data connection successfully.
5771 wpa_dbg(wpa_s
, MSG_DEBUG
,
5772 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5773 P2P_MAX_INITIAL_CONN_WAIT_GO
);
5774 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO
, 0,
5775 wpas_p2p_group_formation_timeout
,
5776 wpa_s
->parent
, NULL
);
5778 * Complete group formation on first successful data connection
5780 wpa_s
->p2p_go_group_formation_completed
= 0;
5782 if (wpa_s
->global
->p2p
)
5783 p2p_wps_success_cb(wpa_s
->global
->p2p
, peer_addr
);
5784 wpas_group_formation_completed(wpa_s
, 1);
5788 void wpas_p2p_wps_failed(struct wpa_supplicant
*wpa_s
,
5789 struct wps_event_fail
*fail
)
5791 if (!wpa_s
->p2p_in_provisioning
) {
5792 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS fail event - P2P "
5793 "provisioning not in progress");
5797 if (wpa_s
->go_params
) {
5798 p2p_clear_provisioning_info(
5800 wpa_s
->go_params
->peer_device_addr
);
5803 wpas_notify_p2p_wps_failed(wpa_s
, fail
);
5805 if (wpa_s
== wpa_s
->global
->p2p_group_formation
) {
5807 * Allow some time for the failed WPS negotiation exchange to
5808 * complete, but remove the group since group formation cannot
5809 * succeed after provisioning failure.
5811 wpa_printf(MSG_DEBUG
, "P2P: WPS step failed during group formation - reject connection from timeout");
5812 wpa_s
->global
->p2p_fail_on_wps_complete
= 1;
5813 eloop_deplete_timeout(0, 50000,
5814 wpas_p2p_group_formation_timeout
,
5815 wpa_s
->parent
, NULL
);
5820 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant
*wpa_s
)
5822 if (!wpa_s
->global
->p2p_fail_on_wps_complete
||
5823 !wpa_s
->p2p_in_provisioning
)
5826 wpas_p2p_grpform_fail_after_wps(wpa_s
);
5832 int wpas_p2p_prov_disc(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
5833 const char *config_method
,
5834 enum wpas_p2p_prov_disc_use use
)
5838 wpa_s
->p2p_fallback_to_go_neg
= 0;
5839 wpa_s
->pending_pd_use
= NORMAL_PD
;
5840 if (os_strncmp(config_method
, "display", 7) == 0)
5841 config_methods
= WPS_CONFIG_DISPLAY
;
5842 else if (os_strncmp(config_method
, "keypad", 6) == 0)
5843 config_methods
= WPS_CONFIG_KEYPAD
;
5844 else if (os_strncmp(config_method
, "pbc", 3) == 0 ||
5845 os_strncmp(config_method
, "pushbutton", 10) == 0)
5846 config_methods
= WPS_CONFIG_PUSHBUTTON
;
5848 wpa_printf(MSG_DEBUG
, "P2P: Unknown config method");
5852 if (use
== WPAS_P2P_PD_AUTO
) {
5853 os_memcpy(wpa_s
->pending_join_dev_addr
, peer_addr
, ETH_ALEN
);
5854 wpa_s
->pending_pd_config_methods
= config_methods
;
5855 wpa_s
->p2p_auto_pd
= 1;
5856 wpa_s
->p2p_auto_join
= 0;
5857 wpa_s
->pending_pd_before_join
= 0;
5858 wpa_s
->auto_pd_scan_retry
= 0;
5859 wpas_p2p_stop_find(wpa_s
);
5860 wpa_s
->p2p_join_scan_count
= 0;
5861 os_get_reltime(&wpa_s
->p2p_auto_started
);
5862 wpa_printf(MSG_DEBUG
, "P2P: Auto PD started at %ld.%06ld",
5863 wpa_s
->p2p_auto_started
.sec
,
5864 wpa_s
->p2p_auto_started
.usec
);
5865 wpas_p2p_join_scan(wpa_s
, NULL
);
5869 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
5872 return p2p_prov_disc_req(wpa_s
->global
->p2p
, peer_addr
,
5873 config_methods
, use
== WPAS_P2P_PD_FOR_JOIN
,
5878 int wpas_p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
,
5881 return p2p_scan_result_text(ies
, ies_len
, buf
, end
);
5885 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant
*wpa_s
)
5887 if (!offchannel_pending_action_tx(wpa_s
))
5890 wpas_p2p_action_tx_clear(wpa_s
);
5892 wpa_printf(MSG_DEBUG
, "P2P: Drop pending Action TX due to new "
5893 "operation request");
5894 offchannel_clear_pending_action_tx(wpa_s
);
5898 int wpas_p2p_find(struct wpa_supplicant
*wpa_s
, unsigned int timeout
,
5899 enum p2p_discovery_type type
,
5900 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
5901 const u8
*dev_id
, unsigned int search_delay
)
5903 wpas_p2p_clear_pending_action_tx(wpa_s
);
5904 wpa_s
->p2p_long_listen
= 0;
5906 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
||
5907 wpa_s
->p2p_in_provisioning
)
5910 wpa_supplicant_cancel_sched_scan(wpa_s
);
5912 return p2p_find(wpa_s
->global
->p2p
, timeout
, type
,
5913 num_req_dev_types
, req_dev_types
, dev_id
,
5918 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant
*wpa_s
,
5919 struct wpa_scan_results
*scan_res
)
5921 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
5923 if (wpa_s
->p2p_scan_work
) {
5924 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
5925 wpa_s
->p2p_scan_work
= NULL
;
5926 radio_work_done(work
);
5929 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5933 * Indicate that results have been processed so that the P2P module can
5934 * continue pending tasks.
5936 p2p_scan_res_handled(wpa_s
->global
->p2p
);
5940 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
)
5942 wpas_p2p_clear_pending_action_tx(wpa_s
);
5943 wpa_s
->p2p_long_listen
= 0;
5944 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
5945 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
5947 if (wpa_s
->global
->p2p
)
5948 p2p_stop_find(wpa_s
->global
->p2p
);
5950 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_handler
) {
5951 wpa_printf(MSG_DEBUG
,
5952 "P2P: Do not consider the scan results after stop_find");
5953 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore_search
;
5958 void wpas_p2p_stop_find(struct wpa_supplicant
*wpa_s
)
5960 wpas_p2p_stop_find_oper(wpa_s
);
5961 wpas_p2p_remove_pending_group_interface(wpa_s
);
5965 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
5967 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
5968 wpa_s
->p2p_long_listen
= 0;
5972 int wpas_p2p_listen(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
5976 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5979 wpa_supplicant_cancel_sched_scan(wpa_s
);
5980 wpas_p2p_clear_pending_action_tx(wpa_s
);
5984 * This is a request for unlimited Listen state. However, at
5985 * least for now, this is mapped to a Listen state for one
5990 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
5991 wpa_s
->p2p_long_listen
= 0;
5994 * Stop previous find/listen operation to avoid trying to request a new
5995 * remain-on-channel operation while the driver is still running the
5998 if (wpa_s
->global
->p2p
)
5999 p2p_stop_find(wpa_s
->global
->p2p
);
6001 res
= wpas_p2p_listen_start(wpa_s
, timeout
* 1000);
6002 if (res
== 0 && timeout
* 1000 > wpa_s
->max_remain_on_chan
) {
6003 wpa_s
->p2p_long_listen
= timeout
* 1000;
6004 eloop_register_timeout(timeout
, 0,
6005 wpas_p2p_long_listen_timeout
,
6013 int wpas_p2p_assoc_req_ie(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
,
6014 u8
*buf
, size_t len
, int p2p_group
)
6016 struct wpabuf
*p2p_ie
;
6019 if (wpa_s
->global
->p2p_disabled
)
6021 if (wpa_s
->conf
->p2p_disabled
)
6023 if (wpa_s
->global
->p2p
== NULL
)
6028 p2p_ie
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
6029 ret
= p2p_assoc_req_ie(wpa_s
->global
->p2p
, bss
->bssid
, buf
, len
,
6031 wpabuf_free(p2p_ie
);
6037 int wpas_p2p_probe_req_rx(struct wpa_supplicant
*wpa_s
, const u8
*addr
,
6038 const u8
*dst
, const u8
*bssid
,
6039 const u8
*ie
, size_t ie_len
, int ssi_signal
)
6041 if (wpa_s
->global
->p2p_disabled
)
6043 if (wpa_s
->global
->p2p
== NULL
)
6046 switch (p2p_probe_req_rx(wpa_s
->global
->p2p
, addr
, dst
, bssid
,
6048 case P2P_PREQ_NOT_P2P
:
6049 wpas_notify_preq(wpa_s
, addr
, dst
, bssid
, ie
, ie_len
,
6052 case P2P_PREQ_MALFORMED
:
6053 case P2P_PREQ_NOT_LISTEN
:
6054 case P2P_PREQ_NOT_PROCESSED
:
6055 default: /* make gcc happy */
6057 case P2P_PREQ_PROCESSED
:
6063 void wpas_p2p_rx_action(struct wpa_supplicant
*wpa_s
, const u8
*da
,
6064 const u8
*sa
, const u8
*bssid
,
6065 u8 category
, const u8
*data
, size_t len
, int freq
)
6067 if (wpa_s
->global
->p2p_disabled
)
6069 if (wpa_s
->global
->p2p
== NULL
)
6072 p2p_rx_action(wpa_s
->global
->p2p
, da
, sa
, bssid
, category
, data
, len
,
6077 void wpas_p2p_scan_ie(struct wpa_supplicant
*wpa_s
, struct wpabuf
*ies
)
6079 if (wpa_s
->global
->p2p_disabled
)
6081 if (wpa_s
->global
->p2p
== NULL
)
6084 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
6088 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
)
6090 p2p_group_deinit(wpa_s
->p2p_group
);
6091 wpa_s
->p2p_group
= NULL
;
6093 wpa_s
->ap_configured_cb
= NULL
;
6094 wpa_s
->ap_configured_cb_ctx
= NULL
;
6095 wpa_s
->ap_configured_cb_data
= NULL
;
6096 wpa_s
->connect_without_scan
= NULL
;
6100 int wpas_p2p_reject(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
6102 wpa_s
->p2p_long_listen
= 0;
6104 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6107 return p2p_reject(wpa_s
->global
->p2p
, addr
);
6111 /* Invite to reinvoke a persistent group */
6112 int wpas_p2p_invite(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6113 struct wpa_ssid
*ssid
, const u8
*go_dev_addr
, int freq
,
6114 int ht40
, int vht
, int pref_freq
)
6116 enum p2p_invite_role role
;
6120 int no_pref_freq_given
= pref_freq
== 0;
6122 wpa_s
->global
->p2p_invite_group
= NULL
;
6124 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
6126 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
6128 wpa_s
->p2p_persistent_go_freq
= freq
;
6129 wpa_s
->p2p_go_ht40
= !!ht40
;
6130 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6131 role
= P2P_INVITE_ROLE_GO
;
6132 if (peer_addr
== NULL
) {
6133 wpa_printf(MSG_DEBUG
, "P2P: Missing peer "
6134 "address in invitation command");
6137 if (wpas_p2p_create_iface(wpa_s
)) {
6138 if (wpas_p2p_add_group_interface(wpa_s
,
6139 WPA_IF_P2P_GO
) < 0) {
6140 wpa_printf(MSG_ERROR
, "P2P: Failed to "
6141 "allocate a new interface for the "
6145 bssid
= wpa_s
->pending_interface_addr
;
6147 bssid
= wpa_s
->own_addr
;
6149 role
= P2P_INVITE_ROLE_CLIENT
;
6150 peer_addr
= ssid
->bssid
;
6152 wpa_s
->pending_invite_ssid_id
= ssid
->id
;
6154 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6155 role
== P2P_INVITE_ROLE_GO
);
6159 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6162 if (wpa_s
->parent
->conf
->p2p_ignore_shared_freq
&&
6163 no_pref_freq_given
&& pref_freq
> 0 &&
6164 wpa_s
->num_multichan_concurrent
> 1 &&
6165 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
6166 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6171 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6172 ssid
->ssid
, ssid
->ssid_len
, force_freq
, go_dev_addr
,
6177 /* Invite to join an active group */
6178 int wpas_p2p_invite_group(struct wpa_supplicant
*wpa_s
, const char *ifname
,
6179 const u8
*peer_addr
, const u8
*go_dev_addr
)
6181 struct wpa_global
*global
= wpa_s
->global
;
6182 enum p2p_invite_role role
;
6184 struct wpa_ssid
*ssid
;
6186 int freq
= 0, force_freq
= 0, pref_freq
= 0;
6189 wpa_s
->p2p_persistent_go_freq
= 0;
6190 wpa_s
->p2p_go_ht40
= 0;
6191 wpa_s
->p2p_go_vht
= 0;
6193 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
6194 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
6197 if (wpa_s
== NULL
) {
6198 wpa_printf(MSG_DEBUG
, "P2P: Interface '%s' not found", ifname
);
6202 ssid
= wpa_s
->current_ssid
;
6204 wpa_printf(MSG_DEBUG
, "P2P: No current SSID to use for "
6209 wpa_s
->global
->p2p_invite_group
= wpa_s
;
6210 persistent
= ssid
->p2p_persistent_group
&&
6211 wpas_p2p_get_persistent(wpa_s
->parent
, peer_addr
,
6212 ssid
->ssid
, ssid
->ssid_len
);
6214 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6215 role
= P2P_INVITE_ROLE_ACTIVE_GO
;
6216 bssid
= wpa_s
->own_addr
;
6217 if (go_dev_addr
== NULL
)
6218 go_dev_addr
= wpa_s
->global
->p2p_dev_addr
;
6219 freq
= ssid
->frequency
;
6221 role
= P2P_INVITE_ROLE_CLIENT
;
6222 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
) {
6223 wpa_printf(MSG_DEBUG
, "P2P: Not associated - cannot "
6224 "invite to current group");
6227 bssid
= wpa_s
->bssid
;
6228 if (go_dev_addr
== NULL
&&
6229 !is_zero_ether_addr(wpa_s
->go_dev_addr
))
6230 go_dev_addr
= wpa_s
->go_dev_addr
;
6231 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6232 (int) wpa_s
->assoc_freq
;
6234 wpa_s
->parent
->pending_invite_ssid_id
= -1;
6236 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6239 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6240 role
== P2P_INVITE_ROLE_ACTIVE_GO
);
6243 wpas_p2p_set_own_freq_preference(wpa_s
, force_freq
);
6245 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6246 ssid
->ssid
, ssid
->ssid_len
, force_freq
,
6247 go_dev_addr
, persistent
, pref_freq
, -1);
6251 void wpas_p2p_completed(struct wpa_supplicant
*wpa_s
)
6253 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
6254 u8 go_dev_addr
[ETH_ALEN
];
6255 int network_id
= -1;
6261 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
) {
6262 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
6263 wpa_s
->parent
, NULL
);
6266 if (!wpa_s
->show_group_started
|| !ssid
)
6269 wpa_s
->show_group_started
= 0;
6271 os_memset(go_dev_addr
, 0, ETH_ALEN
);
6272 if (ssid
->bssid_set
)
6273 os_memcpy(go_dev_addr
, ssid
->bssid
, ETH_ALEN
);
6274 persistent
= wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
6276 os_memcpy(wpa_s
->go_dev_addr
, go_dev_addr
, ETH_ALEN
);
6278 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
6279 wpa_s
->global
->p2p_group_formation
= NULL
;
6281 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6282 (int) wpa_s
->assoc_freq
;
6285 if (wpa_sm_get_p2p_ip_addr(wpa_s
->wpa
, ip
) == 0) {
6288 res
= os_snprintf(ip_addr
, sizeof(ip_addr
),
6289 " ip_addr=%u.%u.%u.%u "
6290 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6291 ip
[0], ip
[1], ip
[2], ip
[3],
6292 ip
[4], ip
[5], ip
[6], ip
[7],
6293 ip
[8], ip
[9], ip
[10], ip
[11]);
6294 if (os_snprintf_error(sizeof(ip_addr
), res
))
6298 wpas_p2p_group_started(wpa_s
, 0, ssid
, freq
,
6299 ssid
->passphrase
== NULL
&& ssid
->psk_set
?
6301 ssid
->passphrase
, go_dev_addr
, persistent
,
6305 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
6308 network_id
= ssid
->id
;
6309 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 1);
6313 int wpas_p2p_presence_req(struct wpa_supplicant
*wpa_s
, u32 duration1
,
6314 u32 interval1
, u32 duration2
, u32 interval2
)
6318 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6321 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
||
6322 wpa_s
->current_ssid
== NULL
||
6323 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
6326 ret
= p2p_presence_req(wpa_s
->global
->p2p
, wpa_s
->bssid
,
6327 wpa_s
->own_addr
, wpa_s
->assoc_freq
,
6328 duration1
, interval1
, duration2
, interval2
);
6330 wpa_s
->waiting_presence_resp
= 1;
6336 int wpas_p2p_ext_listen(struct wpa_supplicant
*wpa_s
, unsigned int period
,
6337 unsigned int interval
)
6339 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6342 return p2p_ext_listen(wpa_s
->global
->p2p
, period
, interval
);
6346 static int wpas_p2p_is_client(struct wpa_supplicant
*wpa_s
)
6348 if (wpa_s
->current_ssid
== NULL
) {
6350 * current_ssid can be cleared when P2P client interface gets
6351 * disconnected, so assume this interface was used as P2P
6356 return wpa_s
->current_ssid
->p2p_group
&&
6357 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
;
6361 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
)
6363 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
6365 if (wpa_s
->conf
->p2p_group_idle
== 0 && !wpas_p2p_is_client(wpa_s
)) {
6366 wpa_printf(MSG_DEBUG
, "P2P: Ignore group idle timeout - "
6371 wpa_printf(MSG_DEBUG
, "P2P: Group idle timeout reached - terminate "
6373 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_IDLE_TIMEOUT
);
6377 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
)
6381 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
6382 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
6384 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
6387 timeout
= wpa_s
->conf
->p2p_group_idle
;
6388 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
&&
6389 (timeout
== 0 || timeout
> P2P_MAX_CLIENT_IDLE
))
6390 timeout
= P2P_MAX_CLIENT_IDLE
;
6396 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
)
6397 timeout
= 0; /* special client mode no-timeout */
6402 if (wpa_s
->p2p_in_provisioning
) {
6404 * Use the normal group formation timeout during the
6405 * provisioning phase to avoid terminating this process too
6406 * early due to group idle timeout.
6408 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
6409 "during provisioning");
6413 if (wpa_s
->show_group_started
) {
6415 * Use the normal group formation timeout between the end of
6416 * the provisioning phase and completion of 4-way handshake to
6417 * avoid terminating this process too early due to group idle
6420 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
6421 "while waiting for initial 4-way handshake to "
6426 wpa_printf(MSG_DEBUG
, "P2P: Set P2P group idle timeout to %u seconds",
6428 eloop_register_timeout(timeout
, 0, wpas_p2p_group_idle_timeout
,
6433 /* Returns 1 if the interface was removed */
6434 int wpas_p2p_deauth_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
6435 u16 reason_code
, const u8
*ie
, size_t ie_len
,
6436 int locally_generated
)
6438 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6441 if (!locally_generated
)
6442 p2p_deauth_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
6445 if (reason_code
== WLAN_REASON_DEAUTH_LEAVING
&& !locally_generated
&&
6446 wpa_s
->current_ssid
&&
6447 wpa_s
->current_ssid
->p2p_group
&&
6448 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
) {
6449 wpa_printf(MSG_DEBUG
, "P2P: GO indicated that the P2P Group "
6450 "session is ending");
6451 if (wpas_p2p_group_delete(wpa_s
,
6452 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
)
6461 void wpas_p2p_disassoc_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
6462 u16 reason_code
, const u8
*ie
, size_t ie_len
,
6463 int locally_generated
)
6465 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6468 if (!locally_generated
)
6469 p2p_disassoc_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
6474 void wpas_p2p_update_config(struct wpa_supplicant
*wpa_s
)
6476 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
6481 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
6484 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_NAME
)
6485 p2p_set_dev_name(p2p
, wpa_s
->conf
->device_name
);
6487 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_TYPE
)
6488 p2p_set_pri_dev_type(p2p
, wpa_s
->conf
->device_type
);
6491 (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_CONFIG_METHODS
))
6492 p2p_set_config_methods(p2p
, wpa_s
->wps
->config_methods
);
6494 if (wpa_s
->wps
&& (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_UUID
))
6495 p2p_set_uuid(p2p
, wpa_s
->wps
->uuid
);
6497 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_WPS_STRING
) {
6498 p2p_set_manufacturer(p2p
, wpa_s
->conf
->manufacturer
);
6499 p2p_set_model_name(p2p
, wpa_s
->conf
->model_name
);
6500 p2p_set_model_number(p2p
, wpa_s
->conf
->model_number
);
6501 p2p_set_serial_number(p2p
, wpa_s
->conf
->serial_number
);
6504 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_SEC_DEVICE_TYPE
)
6505 p2p_set_sec_dev_types(p2p
,
6506 (void *) wpa_s
->conf
->sec_device_type
,
6507 wpa_s
->conf
->num_sec_device_types
);
6509 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_VENDOR_EXTENSION
) {
6511 p2p_remove_wps_vendor_extensions(p2p
);
6512 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
6513 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
6515 p2p_add_wps_vendor_extension(
6516 p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
6520 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
6521 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
6523 country
[0] = wpa_s
->conf
->country
[0];
6524 country
[1] = wpa_s
->conf
->country
[1];
6526 p2p_set_country(p2p
, country
);
6529 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_SSID_POSTFIX
) {
6530 p2p_set_ssid_postfix(p2p
, (u8
*) wpa_s
->conf
->p2p_ssid_postfix
,
6531 wpa_s
->conf
->p2p_ssid_postfix
?
6532 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
) :
6536 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_INTRA_BSS
)
6537 p2p_set_intra_bss_dist(p2p
, wpa_s
->conf
->p2p_intra_bss
);
6539 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_LISTEN_CHANNEL
) {
6540 u8 reg_class
, channel
;
6545 if (wpa_s
->conf
->p2p_listen_reg_class
&&
6546 wpa_s
->conf
->p2p_listen_channel
) {
6547 reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
6548 channel
= wpa_s
->conf
->p2p_listen_channel
;
6553 * Pick one of the social channels randomly as the
6556 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
6559 channel
= 1 + (r
% 3) * 5;
6562 ret
= p2p_set_listen_channel(p2p
, reg_class
, channel
,
6565 wpa_printf(MSG_ERROR
, "P2P: Own listen channel update "
6568 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_OPER_CHANNEL
) {
6569 u8 op_reg_class
, op_channel
, cfg_op_channel
;
6572 if (wpa_s
->conf
->p2p_oper_reg_class
&&
6573 wpa_s
->conf
->p2p_oper_channel
) {
6574 op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
6575 op_channel
= wpa_s
->conf
->p2p_oper_channel
;
6580 * Use random operation channel from (1, 6, 11)
6581 *if no other preference is indicated.
6583 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
6586 op_channel
= 1 + (r
% 3) * 5;
6589 ret
= p2p_set_oper_channel(p2p
, op_reg_class
, op_channel
,
6592 wpa_printf(MSG_ERROR
, "P2P: Own oper channel update "
6596 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PREF_CHAN
) {
6597 if (p2p_set_pref_chan(p2p
, wpa_s
->conf
->num_p2p_pref_chan
,
6598 wpa_s
->conf
->p2p_pref_chan
) < 0) {
6599 wpa_printf(MSG_ERROR
, "P2P: Preferred channel list "
6603 if (p2p_set_no_go_freq(p2p
, &wpa_s
->conf
->p2p_no_go_freq
) < 0) {
6604 wpa_printf(MSG_ERROR
, "P2P: No GO channel list "
6609 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PASSPHRASE_LEN
)
6610 p2p_set_passphrase_len(p2p
, wpa_s
->conf
->p2p_passphrase_len
);
6614 int wpas_p2p_set_noa(struct wpa_supplicant
*wpa_s
, u8 count
, int start
,
6617 if (!wpa_s
->ap_iface
)
6619 return hostapd_p2p_set_noa(wpa_s
->ap_iface
->bss
[0], count
, start
,
6624 int wpas_p2p_set_cross_connect(struct wpa_supplicant
*wpa_s
, int enabled
)
6626 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6629 wpa_s
->global
->cross_connection
= enabled
;
6630 p2p_set_cross_connect(wpa_s
->global
->p2p
, enabled
);
6633 struct wpa_supplicant
*iface
;
6635 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
6637 if (iface
->cross_connect_enabled
== 0)
6640 iface
->cross_connect_enabled
= 0;
6641 iface
->cross_connect_in_use
= 0;
6642 wpa_msg_global(iface
->parent
, MSG_INFO
,
6643 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
6645 iface
->cross_connect_uplink
);
6653 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant
*uplink
)
6655 struct wpa_supplicant
*iface
;
6657 if (!uplink
->global
->cross_connection
)
6660 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
6661 if (!iface
->cross_connect_enabled
)
6663 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
6666 if (iface
->ap_iface
== NULL
)
6668 if (iface
->cross_connect_in_use
)
6671 iface
->cross_connect_in_use
= 1;
6672 wpa_msg_global(iface
->parent
, MSG_INFO
,
6673 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
6674 iface
->ifname
, iface
->cross_connect_uplink
);
6679 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant
*uplink
)
6681 struct wpa_supplicant
*iface
;
6683 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
6684 if (!iface
->cross_connect_enabled
)
6686 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
6689 if (!iface
->cross_connect_in_use
)
6692 wpa_msg_global(iface
->parent
, MSG_INFO
,
6693 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
6694 iface
->ifname
, iface
->cross_connect_uplink
);
6695 iface
->cross_connect_in_use
= 0;
6700 void wpas_p2p_notif_connected(struct wpa_supplicant
*wpa_s
)
6702 if (wpa_s
->ap_iface
|| wpa_s
->current_ssid
== NULL
||
6703 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
6704 wpa_s
->cross_connect_disallowed
)
6705 wpas_p2p_disable_cross_connect(wpa_s
);
6707 wpas_p2p_enable_cross_connect(wpa_s
);
6708 if (!wpa_s
->ap_iface
&&
6709 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
6710 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
6714 void wpas_p2p_notif_disconnected(struct wpa_supplicant
*wpa_s
)
6716 wpas_p2p_disable_cross_connect(wpa_s
);
6717 if (!wpa_s
->ap_iface
&&
6718 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout
,
6720 wpas_p2p_set_group_idle_timeout(wpa_s
);
6724 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
)
6726 struct wpa_supplicant
*iface
;
6728 if (!wpa_s
->global
->cross_connection
)
6731 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
6734 if (iface
->drv_flags
&
6735 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)
6737 if (iface
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
)
6740 wpa_s
->cross_connect_enabled
= 1;
6741 os_strlcpy(wpa_s
->cross_connect_uplink
, iface
->ifname
,
6742 sizeof(wpa_s
->cross_connect_uplink
));
6743 wpa_printf(MSG_DEBUG
, "P2P: Enable cross connection from "
6744 "%s to %s whenever uplink is available",
6745 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
6747 if (iface
->ap_iface
|| iface
->current_ssid
== NULL
||
6748 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
6749 iface
->cross_connect_disallowed
||
6750 iface
->wpa_state
!= WPA_COMPLETED
)
6753 wpa_s
->cross_connect_in_use
= 1;
6754 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
6755 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
6756 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
6762 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant
*wpa_s
)
6764 if (wpa_s
->p2p_group_interface
!= P2P_GROUP_INTERFACE_CLIENT
&&
6765 !wpa_s
->p2p_in_provisioning
)
6766 return 0; /* not P2P client operation */
6768 wpa_printf(MSG_DEBUG
, "P2P: Terminate connection due to WPS PBC "
6770 if (wpa_s
!= wpa_s
->parent
)
6771 wpa_msg_ctrl(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_OVERLAP
);
6772 wpas_p2p_group_formation_failed(wpa_s
);
6777 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx
, void *timeout_ctx
)
6779 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
6780 wpas_p2p_notif_pbc_overlap(wpa_s
);
6784 void wpas_p2p_update_channel_list(struct wpa_supplicant
*wpa_s
)
6786 struct p2p_channels chan
, cli_chan
;
6787 struct wpa_supplicant
*ifs
;
6789 if (wpa_s
->global
== NULL
|| wpa_s
->global
->p2p
== NULL
)
6792 os_memset(&chan
, 0, sizeof(chan
));
6793 os_memset(&cli_chan
, 0, sizeof(cli_chan
));
6794 if (wpas_p2p_setup_channels(wpa_s
, &chan
, &cli_chan
)) {
6795 wpa_printf(MSG_ERROR
, "P2P: Failed to update supported "
6800 p2p_update_channel_list(wpa_s
->global
->p2p
, &chan
, &cli_chan
);
6802 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
6804 if (!ifs
->current_ssid
||
6805 !ifs
->current_ssid
->p2p_group
||
6806 (ifs
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
&&
6807 ifs
->current_ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
))
6809 freq
= ifs
->current_ssid
->frequency
;
6810 if (freq_included(&chan
, freq
)) {
6811 wpa_dbg(ifs
, MSG_DEBUG
,
6812 "P2P GO operating frequency %d MHz in valid range",
6817 wpa_dbg(ifs
, MSG_DEBUG
,
6818 "P2P GO operating in invalid frequency %d MHz", freq
);
6819 /* TODO: Consider using CSA or removing the group within
6821 wpa_msg(ifs
, MSG_INFO
, P2P_EVENT_REMOVE_AND_REFORM_GROUP
);
6826 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant
*wpa_s
,
6827 struct wpa_scan_results
*scan_res
)
6829 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
6833 int wpas_p2p_cancel(struct wpa_supplicant
*wpa_s
)
6835 struct wpa_global
*global
= wpa_s
->global
;
6839 if (global
->p2p
== NULL
)
6842 wpa_printf(MSG_DEBUG
, "P2P: Request to cancel group formation");
6844 if (wpa_s
->pending_interface_name
[0] &&
6845 !is_zero_ether_addr(wpa_s
->pending_interface_addr
))
6848 peer
= p2p_get_go_neg_peer(global
->p2p
);
6850 wpa_printf(MSG_DEBUG
, "P2P: Unauthorize pending GO Neg peer "
6851 MACSTR
, MAC2STR(peer
));
6852 p2p_unauthorize(global
->p2p
, peer
);
6856 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_join
) {
6857 wpa_printf(MSG_DEBUG
, "P2P: Stop pending scan for join");
6858 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore
;
6862 if (wpa_s
->pending_pd_before_join
) {
6863 wpa_printf(MSG_DEBUG
, "P2P: Stop pending PD before join");
6864 wpa_s
->pending_pd_before_join
= 0;
6868 wpas_p2p_stop_find(wpa_s
);
6870 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
6871 if (wpa_s
== global
->p2p_group_formation
&&
6872 (wpa_s
->p2p_in_provisioning
||
6873 wpa_s
->parent
->pending_interface_type
==
6874 WPA_IF_P2P_CLIENT
)) {
6875 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in group "
6876 "formation found - cancelling",
6879 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
6880 wpa_s
->parent
, NULL
);
6881 if (wpa_s
->p2p_in_provisioning
) {
6882 wpas_group_formation_completed(wpa_s
, 0);
6885 wpas_p2p_group_delete(wpa_s
,
6886 P2P_GROUP_REMOVAL_REQUESTED
);
6888 } else if (wpa_s
->p2p_in_invitation
) {
6889 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in invitation found - cancelling",
6892 wpas_p2p_group_formation_failed(wpa_s
);
6897 wpa_printf(MSG_DEBUG
, "P2P: No ongoing group formation found");
6905 void wpas_p2p_interface_unavailable(struct wpa_supplicant
*wpa_s
)
6907 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
6910 wpa_printf(MSG_DEBUG
, "P2P: Remove group due to driver resource not "
6911 "being available anymore");
6912 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_UNAVAILABLE
);
6916 void wpas_p2p_update_best_channels(struct wpa_supplicant
*wpa_s
,
6917 int freq_24
, int freq_5
, int freq_overall
)
6919 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
6922 p2p_set_best_channels(p2p
, freq_24
, freq_5
, freq_overall
);
6926 int wpas_p2p_unauthorize(struct wpa_supplicant
*wpa_s
, const char *addr
)
6929 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
6934 if (hwaddr_aton(addr
, peer
))
6937 return p2p_unauthorize(p2p
, peer
);
6942 * wpas_p2p_disconnect - Disconnect from a P2P Group
6943 * @wpa_s: Pointer to wpa_supplicant data
6944 * Returns: 0 on success, -1 on failure
6946 * This can be used to disconnect from a group in which the local end is a P2P
6947 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6948 * virtual network interface was created for this group, that interface will be
6949 * removed. Otherwise, only the configured P2P group network will be removed
6950 * from the interface.
6952 int wpas_p2p_disconnect(struct wpa_supplicant
*wpa_s
)
6958 return wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_REQUESTED
) < 0 ?
6963 int wpas_p2p_in_progress(struct wpa_supplicant
*wpa_s
)
6967 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6970 ret
= p2p_in_progress(wpa_s
->global
->p2p
);
6973 * Check whether there is an ongoing WPS provisioning step (or
6974 * other parts of group formation) on another interface since
6975 * p2p_in_progress() does not report this to avoid issues for
6976 * scans during such provisioning step.
6978 if (wpa_s
->global
->p2p_group_formation
&&
6979 wpa_s
->global
->p2p_group_formation
!= wpa_s
) {
6980 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Another interface (%s) "
6981 "in group formation",
6982 wpa_s
->global
->p2p_group_formation
->ifname
);
6987 if (!ret
&& wpa_s
->global
->p2p_go_wait_client
.sec
) {
6988 struct os_reltime now
;
6989 os_get_reltime(&now
);
6990 if (os_reltime_expired(&now
, &wpa_s
->global
->p2p_go_wait_client
,
6991 P2P_MAX_INITIAL_CONN_WAIT_GO
)) {
6992 /* Wait for the first client has expired */
6993 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
6995 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Waiting for initial client connection during group formation");
7004 void wpas_p2p_network_removed(struct wpa_supplicant
*wpa_s
,
7005 struct wpa_ssid
*ssid
)
7007 if (wpa_s
->p2p_in_provisioning
&& ssid
->p2p_group
&&
7008 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7009 wpa_s
->parent
, NULL
) > 0) {
7011 * Remove the network by scheduling the group formation
7012 * timeout to happen immediately. The teardown code
7013 * needs to be scheduled to run asynch later so that we
7014 * don't delete data from under ourselves unexpectedly.
7015 * Calling wpas_p2p_group_formation_timeout directly
7016 * causes a series of crashes in WPS failure scenarios.
7018 wpa_printf(MSG_DEBUG
, "P2P: Canceled group formation due to "
7019 "P2P group network getting removed");
7020 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
7021 wpa_s
->parent
, NULL
);
7026 struct wpa_ssid
* wpas_p2p_get_persistent(struct wpa_supplicant
*wpa_s
,
7027 const u8
*addr
, const u8
*ssid
,
7033 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
7034 if (s
->disabled
!= 2)
7037 (ssid_len
!= s
->ssid_len
||
7038 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0))
7041 if (s
->mode
== WPAS_MODE_P2P_GO
)
7045 if (os_memcmp(s
->bssid
, addr
, ETH_ALEN
) == 0)
7046 return s
; /* peer is GO in the persistent group */
7047 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->p2p_client_list
== NULL
)
7049 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
7050 if (os_memcmp(s
->p2p_client_list
+ i
* ETH_ALEN
,
7051 addr
, ETH_ALEN
) == 0)
7052 return s
; /* peer is P2P client in persistent
7061 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant
*wpa_s
,
7064 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7065 wpa_s
->parent
, NULL
) > 0) {
7067 * This can happen if WPS provisioning step is not terminated
7068 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7069 * peer was able to connect, there is no need to time out group
7070 * formation after this, though. In addition, this is used with
7071 * the initial connection wait on the GO as a separate formation
7072 * timeout and as such, expected to be hit after the initial WPS
7073 * provisioning step.
7075 wpa_printf(MSG_DEBUG
, "P2P: Canceled P2P group formation timeout on data connection");
7077 if (!wpa_s
->p2p_go_group_formation_completed
&&
7078 !wpa_s
->group_formation_reported
) {
7080 * GO has not yet notified group formation success since
7081 * the WPS step was not completed cleanly. Do that
7082 * notification now since the P2P Client was able to
7083 * connect and as such, must have received the
7084 * credential from the WPS step.
7086 if (wpa_s
->global
->p2p
)
7087 p2p_wps_success_cb(wpa_s
->global
->p2p
, addr
);
7088 wpas_group_formation_completed(wpa_s
, 1);
7091 if (!wpa_s
->p2p_go_group_formation_completed
) {
7092 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Marking group formation completed on GO on first data connection");
7093 wpa_s
->p2p_go_group_formation_completed
= 1;
7094 wpa_s
->global
->p2p_group_formation
= NULL
;
7095 wpa_s
->p2p_in_provisioning
= 0;
7096 wpa_s
->p2p_in_invitation
= 0;
7098 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
7101 wpas_p2p_add_persistent_group_client(wpa_s
, addr
);
7105 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
7108 struct wpa_supplicant
*group
= wpa_s
;
7109 if (wpa_s
->global
->p2p_group_formation
)
7110 group
= wpa_s
->global
->p2p_group_formation
;
7111 wpa_s
= wpa_s
->parent
;
7112 offchannel_send_action_done(wpa_s
);
7114 wpas_p2p_group_delete(group
, P2P_GROUP_REMOVAL_SILENT
);
7115 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Fall back to GO Negotiation");
7116 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
, wpa_s
->p2p_pin
,
7117 wpa_s
->p2p_wps_method
, wpa_s
->p2p_persistent_group
, 0,
7118 0, 0, wpa_s
->p2p_go_intent
, wpa_s
->p2p_connect_freq
,
7119 wpa_s
->p2p_persistent_id
,
7120 wpa_s
->p2p_pd_before_go_neg
,
7126 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant
*wpa_s
)
7128 if (!wpa_s
->p2p_fallback_to_go_neg
||
7129 wpa_s
->p2p_in_provisioning
<= 5)
7132 if (wpas_p2p_peer_go(wpa_s
, wpa_s
->pending_join_dev_addr
) > 0)
7133 return 0; /* peer operating as a GO */
7135 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: GO not found for p2p_connect-auto - "
7136 "fallback to GO Negotiation");
7137 wpas_p2p_fallback_to_go_neg(wpa_s
, 1);
7143 unsigned int wpas_p2p_search_delay(struct wpa_supplicant
*wpa_s
)
7145 struct wpa_supplicant
*ifs
;
7147 if (wpa_s
->wpa_state
> WPA_SCANNING
) {
7148 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search delay due to "
7149 "concurrent operation",
7150 wpa_s
->conf
->p2p_search_delay
);
7151 return wpa_s
->conf
->p2p_search_delay
;
7154 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
7156 if (ifs
!= wpa_s
&& ifs
->wpa_state
> WPA_SCANNING
) {
7157 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search "
7158 "delay due to concurrent operation on "
7160 wpa_s
->conf
->p2p_search_delay
,
7162 return wpa_s
->conf
->p2p_search_delay
;
7170 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant
*wpa_s
,
7171 struct wpa_ssid
*s
, const u8
*addr
,
7174 struct psk_list_entry
*psk
, *tmp
;
7177 dl_list_for_each_safe(psk
, tmp
, &s
->psk_list
, struct psk_list_entry
,
7179 if ((iface_addr
&& !psk
->p2p
&&
7180 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0) ||
7181 (!iface_addr
&& psk
->p2p
&&
7182 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0)) {
7183 wpa_dbg(wpa_s
, MSG_DEBUG
,
7184 "P2P: Remove persistent group PSK list entry for "
7186 MAC2STR(psk
->addr
), psk
->p2p
);
7187 dl_list_del(&psk
->list
);
7197 void wpas_p2p_new_psk_cb(struct wpa_supplicant
*wpa_s
, const u8
*mac_addr
,
7198 const u8
*p2p_dev_addr
,
7199 const u8
*psk
, size_t psk_len
)
7201 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
7202 struct wpa_ssid
*persistent
;
7203 struct psk_list_entry
*p
, *last
;
7205 if (psk_len
!= sizeof(p
->psk
))
7209 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
7210 " p2p_dev_addr=" MACSTR
,
7211 MAC2STR(mac_addr
), MAC2STR(p2p_dev_addr
));
7212 if (is_zero_ether_addr(p2p_dev_addr
))
7213 p2p_dev_addr
= NULL
;
7215 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
,
7219 if (ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
7220 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: new_psk_cb during group formation");
7221 /* To be added to persistent group once created */
7222 if (wpa_s
->global
->add_psk
== NULL
) {
7223 wpa_s
->global
->add_psk
= os_zalloc(sizeof(*p
));
7224 if (wpa_s
->global
->add_psk
== NULL
)
7227 p
= wpa_s
->global
->add_psk
;
7230 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7233 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7235 os_memcpy(p
->psk
, psk
, psk_len
);
7239 if (ssid
->mode
!= WPAS_MODE_P2P_GO
|| !ssid
->p2p_persistent_group
) {
7240 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Ignore new_psk_cb on not-persistent GO");
7244 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
7247 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not find persistent group information to store the new PSK");
7251 p
= os_zalloc(sizeof(*p
));
7256 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7259 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7261 os_memcpy(p
->psk
, psk
, psk_len
);
7263 if (dl_list_len(&persistent
->psk_list
) > P2P_MAX_STORED_CLIENTS
&&
7264 (last
= dl_list_last(&persistent
->psk_list
,
7265 struct psk_list_entry
, list
))) {
7266 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove oldest PSK entry for "
7267 MACSTR
" (p2p=%u) to make room for a new one",
7268 MAC2STR(last
->addr
), last
->p2p
);
7269 dl_list_del(&last
->list
);
7273 wpas_p2p_remove_psk_entry(wpa_s
->parent
, persistent
,
7274 p2p_dev_addr
? p2p_dev_addr
: mac_addr
,
7275 p2p_dev_addr
== NULL
);
7277 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for p2p_dev_addr="
7278 MACSTR
, MAC2STR(p2p_dev_addr
));
7280 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for addr=" MACSTR
,
7283 dl_list_add(&persistent
->psk_list
, &p
->list
);
7285 if (wpa_s
->parent
->conf
->update_config
&&
7286 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
7287 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
7291 static void wpas_p2p_remove_psk(struct wpa_supplicant
*wpa_s
,
7292 struct wpa_ssid
*s
, const u8
*addr
,
7297 res
= wpas_p2p_remove_psk_entry(wpa_s
, s
, addr
, iface_addr
);
7298 if (res
> 0 && wpa_s
->conf
->update_config
&&
7299 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
))
7300 wpa_dbg(wpa_s
, MSG_DEBUG
,
7301 "P2P: Failed to update configuration");
7305 static void wpas_p2p_remove_client_go(struct wpa_supplicant
*wpa_s
,
7306 const u8
*peer
, int iface_addr
)
7308 struct hostapd_data
*hapd
;
7309 struct hostapd_wpa_psk
*psk
, *prev
, *rem
;
7310 struct sta_info
*sta
;
7312 if (wpa_s
->ap_iface
== NULL
|| wpa_s
->current_ssid
== NULL
||
7313 wpa_s
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
)
7316 /* Remove per-station PSK entry */
7317 hapd
= wpa_s
->ap_iface
->bss
[0];
7319 psk
= hapd
->conf
->ssid
.wpa_psk
;
7321 if ((iface_addr
&& os_memcmp(peer
, psk
->addr
, ETH_ALEN
) == 0) ||
7323 os_memcmp(peer
, psk
->p2p_dev_addr
, ETH_ALEN
) == 0)) {
7324 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove operating group PSK entry for "
7325 MACSTR
" iface_addr=%d",
7326 MAC2STR(peer
), iface_addr
);
7328 prev
->next
= psk
->next
;
7330 hapd
->conf
->ssid
.wpa_psk
= psk
->next
;
7340 /* Disconnect from group */
7342 sta
= ap_get_sta(hapd
, peer
);
7344 sta
= ap_get_sta_p2p(hapd
, peer
);
7346 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disconnect peer " MACSTR
7347 " (iface_addr=%d) from group",
7348 MAC2STR(peer
), iface_addr
);
7349 hostapd_drv_sta_deauth(hapd
, sta
->addr
,
7350 WLAN_REASON_DEAUTH_LEAVING
);
7351 ap_sta_deauthenticate(hapd
, sta
, WLAN_REASON_DEAUTH_LEAVING
);
7356 void wpas_p2p_remove_client(struct wpa_supplicant
*wpa_s
, const u8
*peer
,
7360 struct wpa_supplicant
*w
;
7362 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove client " MACSTR
, MAC2STR(peer
));
7364 /* Remove from any persistent group */
7365 for (s
= wpa_s
->parent
->conf
->ssid
; s
; s
= s
->next
) {
7366 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
7369 wpas_remove_persistent_peer(wpa_s
, s
, peer
, 0);
7370 wpas_p2p_remove_psk(wpa_s
->parent
, s
, peer
, iface_addr
);
7373 /* Remove from any operating group */
7374 for (w
= wpa_s
->global
->ifaces
; w
; w
= w
->next
)
7375 wpas_p2p_remove_client_go(w
, peer
, iface_addr
);
7379 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
)
7381 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7382 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_PSK_FAILURE
);
7386 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
)
7388 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7390 wpa_printf(MSG_DEBUG
, "P2P: Frequency conflict - terminate group");
7391 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_FREQ_CONFLICT
);
7395 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant
*wpa_s
, int freq
,
7396 struct wpa_ssid
*ssid
)
7398 struct wpa_supplicant
*iface
;
7400 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7401 if (!iface
->current_ssid
||
7402 iface
->current_ssid
->frequency
== freq
||
7403 (iface
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
&&
7404 !iface
->current_ssid
->p2p_group
))
7407 /* Remove the connection with least priority */
7408 if (!wpas_is_p2p_prioritized(iface
)) {
7409 /* STA connection has priority over existing
7410 * P2P connection, so remove the interface. */
7411 wpa_printf(MSG_DEBUG
, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7412 eloop_register_timeout(0, 0,
7413 wpas_p2p_group_freq_conflict
,
7415 /* If connection in progress is P2P connection, do not
7416 * proceed for the connection. */
7422 /* P2P connection has priority, disable the STA network
7424 wpa_supplicant_disable_network(wpa_s
->global
->ifaces
,
7426 wpa_msg(wpa_s
->global
->ifaces
, MSG_INFO
,
7427 WPA_EVENT_FREQ_CONFLICT
" id=%d", ssid
->id
);
7428 os_memset(wpa_s
->global
->ifaces
->pending_bssid
, 0,
7430 /* If P2P connection is in progress, continue
7443 int wpas_p2p_4way_hs_failed(struct wpa_supplicant
*wpa_s
)
7445 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
7447 if (ssid
== NULL
|| !ssid
->p2p_group
)
7450 if (wpa_s
->p2p_last_4way_hs_fail
&&
7451 wpa_s
->p2p_last_4way_hs_fail
== ssid
) {
7452 u8 go_dev_addr
[ETH_ALEN
];
7453 struct wpa_ssid
*persistent
;
7455 if (wpas_p2p_persistent_group(wpa_s
, go_dev_addr
,
7457 ssid
->ssid_len
) <= 0) {
7458 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7462 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7463 MACSTR
, MAC2STR(go_dev_addr
));
7464 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, go_dev_addr
,
7467 if (persistent
== NULL
|| persistent
->mode
!= WPAS_MODE_INFRA
) {
7468 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No matching persistent group stored");
7471 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
7472 P2P_EVENT_PERSISTENT_PSK_FAIL
"%d",
7475 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
7477 * Remove the group from a timeout to avoid issues with caller
7478 * continuing to use the interface if this is on a P2P group
7481 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal
,
7486 wpa_s
->p2p_last_4way_hs_fail
= ssid
;
7491 #ifdef CONFIG_WPS_NFC
7493 static struct wpabuf
* wpas_p2p_nfc_handover(int ndef
, struct wpabuf
*wsc
,
7501 wpa_printf(MSG_DEBUG
, "P2P: No p2p buffer for handover");
7505 wsc_len
= wsc
? wpabuf_len(wsc
) : 0;
7506 ret
= wpabuf_alloc(2 + wsc_len
+ 2 + wpabuf_len(p2p
));
7513 wpabuf_put_be16(ret
, wsc_len
);
7515 wpabuf_put_buf(ret
, wsc
);
7516 wpabuf_put_be16(ret
, wpabuf_len(p2p
));
7517 wpabuf_put_buf(ret
, p2p
);
7521 wpa_hexdump_buf(MSG_DEBUG
,
7522 "P2P: Generated NFC connection handover message", ret
);
7526 tmp
= ndef_build_p2p(ret
);
7529 wpa_printf(MSG_DEBUG
, "P2P: Failed to NDEF encapsulate handover request");
7539 static int wpas_p2p_cli_freq(struct wpa_supplicant
*wpa_s
,
7540 struct wpa_ssid
**ssid
, u8
*go_dev_addr
)
7542 struct wpa_supplicant
*iface
;
7545 os_memset(go_dev_addr
, 0, ETH_ALEN
);
7548 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7549 if (iface
->wpa_state
< WPA_ASSOCIATING
||
7550 iface
->current_ssid
== NULL
|| iface
->assoc_freq
== 0 ||
7551 !iface
->current_ssid
->p2p_group
||
7552 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
7555 *ssid
= iface
->current_ssid
;
7557 os_memcpy(go_dev_addr
, iface
->go_dev_addr
, ETH_ALEN
);
7558 return iface
->assoc_freq
;
7564 struct wpabuf
* wpas_p2p_nfc_handover_req(struct wpa_supplicant
*wpa_s
,
7567 struct wpabuf
*wsc
, *p2p
;
7568 struct wpa_ssid
*ssid
;
7569 u8 go_dev_addr
[ETH_ALEN
];
7570 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
7572 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
) {
7573 wpa_printf(MSG_DEBUG
, "P2P: P2P disabled - cannot build handover request");
7577 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
7578 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
7579 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0) {
7580 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No DH key available for handover request");
7584 if (cli_freq
== 0) {
7585 wsc
= wps_build_nfc_handover_req_p2p(
7586 wpa_s
->parent
->wps
, wpa_s
->conf
->wps_nfc_dh_pubkey
);
7589 p2p
= p2p_build_nfc_handover_req(wpa_s
->global
->p2p
, cli_freq
,
7590 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
7591 ssid
? ssid
->ssid_len
: 0);
7593 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
7597 struct wpabuf
* wpas_p2p_nfc_handover_sel(struct wpa_supplicant
*wpa_s
,
7600 struct wpabuf
*wsc
, *p2p
;
7601 struct wpa_ssid
*ssid
;
7602 u8 go_dev_addr
[ETH_ALEN
];
7603 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
7605 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7608 if (!tag
&& wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
7609 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
7610 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
7613 if (cli_freq
== 0) {
7614 wsc
= wps_build_nfc_handover_sel_p2p(
7616 tag
? wpa_s
->conf
->wps_nfc_dev_pw_id
:
7617 DEV_PW_NFC_CONNECTION_HANDOVER
,
7618 wpa_s
->conf
->wps_nfc_dh_pubkey
,
7619 tag
? wpa_s
->conf
->wps_nfc_dev_pw
: NULL
);
7622 p2p
= p2p_build_nfc_handover_sel(wpa_s
->global
->p2p
, cli_freq
,
7623 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
7624 ssid
? ssid
->ssid_len
: 0);
7626 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
7630 static int wpas_p2p_nfc_join_group(struct wpa_supplicant
*wpa_s
,
7631 struct p2p_nfc_params
*params
)
7633 wpa_printf(MSG_DEBUG
, "P2P: Initiate join-group based on NFC "
7634 "connection handover (freq=%d)",
7637 if (params
->go_freq
&& params
->go_ssid_len
) {
7638 wpa_s
->p2p_wps_method
= WPS_NFC
;
7639 wpa_s
->pending_join_wps_method
= WPS_NFC
;
7640 os_memset(wpa_s
->pending_join_iface_addr
, 0, ETH_ALEN
);
7641 os_memcpy(wpa_s
->pending_join_dev_addr
, params
->go_dev_addr
,
7643 return wpas_p2p_join_start(wpa_s
, params
->go_freq
,
7645 params
->go_ssid_len
);
7648 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
7649 WPS_NFC
, 0, 0, 1, 0, wpa_s
->conf
->p2p_go_intent
,
7650 params
->go_freq
, -1, 0, 1, 1);
7654 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant
*wpa_s
,
7655 struct p2p_nfc_params
*params
, int tag
)
7657 int res
, persistent
;
7658 struct wpa_ssid
*ssid
;
7660 wpa_printf(MSG_DEBUG
, "P2P: Authorize join-group based on NFC "
7661 "connection handover");
7662 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
7663 ssid
= wpa_s
->current_ssid
;
7666 if (ssid
->mode
!= WPAS_MODE_P2P_GO
)
7668 if (wpa_s
->ap_iface
== NULL
)
7672 if (wpa_s
== NULL
) {
7673 wpa_printf(MSG_DEBUG
, "P2P: Could not find GO interface");
7677 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
7678 DEV_PW_NFC_CONNECTION_HANDOVER
&&
7679 !wpa_s
->parent
->p2p_oob_dev_pw
) {
7680 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
7683 res
= wpas_ap_wps_add_nfc_pw(
7684 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
7685 wpa_s
->parent
->p2p_oob_dev_pw
,
7686 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
7687 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
7692 wpa_printf(MSG_DEBUG
, "P2P: Negotiated handover - wait for peer to join without invitation");
7696 if (!params
->peer
||
7697 !(params
->peer
->dev_capab
& P2P_DEV_CAPAB_INVITATION_PROCEDURE
))
7700 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invite peer " MACSTR
7701 " to join", MAC2STR(params
->peer
->p2p_device_addr
));
7703 wpa_s
->global
->p2p_invite_group
= wpa_s
;
7704 persistent
= ssid
->p2p_persistent_group
&&
7705 wpas_p2p_get_persistent(wpa_s
->parent
,
7706 params
->peer
->p2p_device_addr
,
7707 ssid
->ssid
, ssid
->ssid_len
);
7708 wpa_s
->parent
->pending_invite_ssid_id
= -1;
7710 return p2p_invite(wpa_s
->global
->p2p
, params
->peer
->p2p_device_addr
,
7711 P2P_INVITE_ROLE_ACTIVE_GO
, wpa_s
->own_addr
,
7712 ssid
->ssid
, ssid
->ssid_len
, ssid
->frequency
,
7713 wpa_s
->global
->p2p_dev_addr
, persistent
, 0,
7714 wpa_s
->parent
->p2p_oob_dev_pw_id
);
7718 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant
*wpa_s
,
7719 struct p2p_nfc_params
*params
,
7722 wpa_printf(MSG_DEBUG
, "P2P: Initiate GO Negotiation based on NFC "
7723 "connection handover");
7724 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
7725 WPS_NFC
, 0, 0, 0, 0, wpa_s
->conf
->p2p_go_intent
,
7726 forced_freq
, -1, 0, 1, 1);
7730 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant
*wpa_s
,
7731 struct p2p_nfc_params
*params
,
7736 wpa_printf(MSG_DEBUG
, "P2P: Authorize GO Negotiation based on NFC "
7737 "connection handover");
7738 res
= wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
7739 WPS_NFC
, 0, 0, 0, 1, wpa_s
->conf
->p2p_go_intent
,
7740 forced_freq
, -1, 0, 1, 1);
7744 res
= wpas_p2p_listen(wpa_s
, 60);
7746 p2p_unauthorize(wpa_s
->global
->p2p
,
7747 params
->peer
->p2p_device_addr
);
7754 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant
*wpa_s
,
7755 const struct wpabuf
*data
,
7756 int sel
, int tag
, int forced_freq
)
7758 const u8
*pos
, *end
;
7760 struct p2p_nfc_params params
;
7763 os_memset(¶ms
, 0, sizeof(params
));
7766 wpa_hexdump_buf(MSG_DEBUG
, "P2P: Received NFC tag payload", data
);
7768 pos
= wpabuf_head(data
);
7769 end
= pos
+ wpabuf_len(data
);
7771 if (end
- pos
< 2) {
7772 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of WSC "
7776 len
= WPA_GET_BE16(pos
);
7778 if (len
> end
- pos
) {
7779 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for WSC "
7783 params
.wsc_attr
= pos
;
7784 params
.wsc_len
= len
;
7787 if (end
- pos
< 2) {
7788 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of P2P "
7792 len
= WPA_GET_BE16(pos
);
7794 if (len
> end
- pos
) {
7795 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for P2P "
7799 params
.p2p_attr
= pos
;
7800 params
.p2p_len
= len
;
7803 wpa_hexdump(MSG_DEBUG
, "P2P: WSC attributes",
7804 params
.wsc_attr
, params
.wsc_len
);
7805 wpa_hexdump(MSG_DEBUG
, "P2P: P2P attributes",
7806 params
.p2p_attr
, params
.p2p_len
);
7808 wpa_hexdump(MSG_DEBUG
,
7809 "P2P: Ignored extra data after P2P attributes",
7813 res
= p2p_process_nfc_connection_handover(wpa_s
->global
->p2p
, ¶ms
);
7817 if (params
.next_step
== NO_ACTION
)
7820 if (params
.next_step
== BOTH_GO
) {
7821 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_BOTH_GO
"peer=" MACSTR
,
7822 MAC2STR(params
.peer
->p2p_device_addr
));
7826 if (params
.next_step
== PEER_CLIENT
) {
7827 if (!is_zero_ether_addr(params
.go_dev_addr
)) {
7828 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
7829 "peer=" MACSTR
" freq=%d go_dev_addr=" MACSTR
7831 MAC2STR(params
.peer
->p2p_device_addr
),
7833 MAC2STR(params
.go_dev_addr
),
7834 wpa_ssid_txt(params
.go_ssid
,
7835 params
.go_ssid_len
));
7837 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
7838 "peer=" MACSTR
" freq=%d",
7839 MAC2STR(params
.peer
->p2p_device_addr
),
7845 if (wpas_p2p_cli_freq(wpa_s
, NULL
, NULL
)) {
7846 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_WHILE_CLIENT
"peer="
7847 MACSTR
, MAC2STR(params
.peer
->p2p_device_addr
));
7851 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
7852 wpa_s
->p2p_oob_dev_pw
= NULL
;
7854 if (params
.oob_dev_pw_len
< WPS_OOB_PUBKEY_HASH_LEN
+ 2) {
7855 wpa_printf(MSG_DEBUG
, "P2P: No peer OOB Dev Pw "
7860 id
= WPA_GET_BE16(params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
);
7861 wpa_printf(MSG_DEBUG
, "P2P: Peer OOB Dev Pw %u", id
);
7862 wpa_hexdump(MSG_DEBUG
, "P2P: Peer OOB Public Key hash",
7863 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
7864 os_memcpy(wpa_s
->p2p_peer_oob_pubkey_hash
,
7865 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
7866 wpa_s
->p2p_peer_oob_pk_hash_known
= 1;
7870 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invalid "
7871 "peer OOB Device Password Id %u", id
);
7874 wpa_printf(MSG_DEBUG
, "P2P: Static handover - use peer OOB "
7875 "Device Password Id %u", id
);
7876 wpa_hexdump_key(MSG_DEBUG
, "P2P: Peer OOB Device Password",
7877 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
7878 params
.oob_dev_pw_len
-
7879 WPS_OOB_PUBKEY_HASH_LEN
- 2);
7880 wpa_s
->p2p_oob_dev_pw_id
= id
;
7881 wpa_s
->p2p_oob_dev_pw
= wpabuf_alloc_copy(
7882 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
7883 params
.oob_dev_pw_len
-
7884 WPS_OOB_PUBKEY_HASH_LEN
- 2);
7885 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
7888 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
7889 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
7890 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
7893 wpa_printf(MSG_DEBUG
, "P2P: Using abbreviated WPS handshake "
7894 "without Device Password");
7895 wpa_s
->p2p_oob_dev_pw_id
= DEV_PW_NFC_CONNECTION_HANDOVER
;
7898 switch (params
.next_step
) {
7902 /* already covered above */
7905 return wpas_p2p_nfc_join_group(wpa_s
, ¶ms
);
7907 return wpas_p2p_nfc_auth_join(wpa_s
, ¶ms
, tag
);
7909 return wpas_p2p_nfc_init_go_neg(wpa_s
, ¶ms
, forced_freq
);
7911 /* TODO: use own OOB Dev Pw */
7912 return wpas_p2p_nfc_resp_go_neg(wpa_s
, ¶ms
, forced_freq
);
7919 int wpas_p2p_nfc_tag_process(struct wpa_supplicant
*wpa_s
,
7920 const struct wpabuf
*data
, int forced_freq
)
7922 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7925 return wpas_p2p_nfc_connection_handover(wpa_s
, data
, 1, 1, forced_freq
);
7929 int wpas_p2p_nfc_report_handover(struct wpa_supplicant
*wpa_s
, int init
,
7930 const struct wpabuf
*req
,
7931 const struct wpabuf
*sel
, int forced_freq
)
7936 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7939 wpa_printf(MSG_DEBUG
, "NFC: P2P connection handover reported");
7941 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Req",
7942 wpabuf_head(req
), wpabuf_len(req
));
7943 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Sel",
7944 wpabuf_head(sel
), wpabuf_len(sel
));
7946 wpa_printf(MSG_DEBUG
, "NFC: Forced freq %d", forced_freq
);
7947 tmp
= ndef_parse_p2p(init
? sel
: req
);
7949 wpa_printf(MSG_DEBUG
, "P2P: Could not parse NDEF");
7953 ret
= wpas_p2p_nfc_connection_handover(wpa_s
, tmp
, init
, 0,
7961 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant
*wpa_s
, int enabled
)
7964 int go_intent
= wpa_s
->conf
->p2p_go_intent
;
7965 struct wpa_supplicant
*iface
;
7967 if (wpa_s
->global
->p2p
== NULL
)
7971 wpa_printf(MSG_DEBUG
, "P2P: Disable use of own NFC Tag");
7972 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
7974 if (!iface
->ap_iface
)
7976 hostapd_wps_nfc_token_disable(iface
->ap_iface
->bss
[0]);
7978 p2p_set_authorized_oob_dev_pw_id(wpa_s
->global
->p2p
, 0,
7980 if (wpa_s
->p2p_nfc_tag_enabled
)
7981 wpas_p2p_remove_pending_group_interface(wpa_s
);
7982 wpa_s
->p2p_nfc_tag_enabled
= 0;
7986 if (wpa_s
->global
->p2p_disabled
)
7989 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
||
7990 wpa_s
->conf
->wps_nfc_dh_privkey
== NULL
||
7991 wpa_s
->conf
->wps_nfc_dev_pw
== NULL
||
7992 wpa_s
->conf
->wps_nfc_dev_pw_id
< 0x10) {
7993 wpa_printf(MSG_DEBUG
, "P2P: NFC password token not configured "
7994 "to allow static handover cases");
7998 wpa_printf(MSG_DEBUG
, "P2P: Enable use of own NFC Tag");
8000 wpa_s
->p2p_oob_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8001 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
8002 wpa_s
->p2p_oob_dev_pw
= wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8003 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
8005 wpa_s
->p2p_peer_oob_pk_hash_known
= 0;
8007 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
||
8008 wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
) {
8010 * P2P Group Interface present and the command came on group
8011 * interface, so enable the token for the current interface.
8013 wpa_s
->create_p2p_iface
= 0;
8015 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
8018 if (wpa_s
->create_p2p_iface
) {
8019 enum wpa_driver_if_type iftype
;
8020 /* Prepare to add a new interface for the group */
8021 iftype
= WPA_IF_P2P_GROUP
;
8022 if (go_intent
== 15)
8023 iftype
= WPA_IF_P2P_GO
;
8024 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
8025 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
8026 "interface for the group");
8030 if_addr
= wpa_s
->pending_interface_addr
;
8032 if_addr
= wpa_s
->own_addr
;
8034 wpa_s
->p2p_nfc_tag_enabled
= enabled
;
8036 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
8037 struct hostapd_data
*hapd
;
8038 if (iface
->ap_iface
== NULL
)
8040 hapd
= iface
->ap_iface
->bss
[0];
8041 wpabuf_free(hapd
->conf
->wps_nfc_dh_pubkey
);
8042 hapd
->conf
->wps_nfc_dh_pubkey
=
8043 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_pubkey
);
8044 wpabuf_free(hapd
->conf
->wps_nfc_dh_privkey
);
8045 hapd
->conf
->wps_nfc_dh_privkey
=
8046 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_privkey
);
8047 wpabuf_free(hapd
->conf
->wps_nfc_dev_pw
);
8048 hapd
->conf
->wps_nfc_dev_pw
=
8049 wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8050 hapd
->conf
->wps_nfc_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8052 if (hostapd_wps_nfc_token_enable(iface
->ap_iface
->bss
[0]) < 0) {
8053 wpa_dbg(iface
, MSG_DEBUG
,
8054 "P2P: Failed to enable NFC Tag for GO");
8057 p2p_set_authorized_oob_dev_pw_id(
8058 wpa_s
->global
->p2p
, wpa_s
->conf
->wps_nfc_dev_pw_id
, go_intent
,
8064 #endif /* CONFIG_WPS_NFC */
8067 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant
*wpa_s
,
8068 struct wpa_used_freq_data
*freqs
,
8071 u8 curr_chan
, cand
, chan
;
8074 curr_chan
= p2p_get_listen_channel(wpa_s
->global
->p2p
);
8075 for (i
= 0, cand
= 0; i
< num
; i
++) {
8076 ieee80211_freq_to_chan(freqs
[i
].freq
, &chan
);
8077 if (curr_chan
== chan
) {
8082 if (chan
== 1 || chan
== 6 || chan
== 11)
8087 wpa_dbg(wpa_s
, MSG_DEBUG
,
8088 "P2P: Update Listen channel to %u baased on operating channel",
8090 p2p_set_listen_channel(wpa_s
->global
->p2p
, 81, cand
, 0);
8095 void wpas_p2p_indicate_state_change(struct wpa_supplicant
*wpa_s
)
8097 struct wpa_used_freq_data
*freqs
;
8098 unsigned int num
= wpa_s
->num_multichan_concurrent
;
8100 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8104 * If possible, optimize the Listen channel to be a channel that is
8105 * already used by one of the other interfaces.
8107 if (!wpa_s
->conf
->p2p_optimize_listen_chan
)
8110 if (!wpa_s
->current_ssid
|| wpa_s
->wpa_state
!= WPA_COMPLETED
)
8113 freqs
= os_calloc(num
, sizeof(struct wpa_used_freq_data
));
8117 num
= get_shared_radio_freqs_data(wpa_s
, freqs
, num
);
8119 wpas_p2p_optimize_listen_channel(wpa_s
, freqs
, num
);
8124 void wpas_p2p_deinit_iface(struct wpa_supplicant
*wpa_s
)
8126 if (wpa_s
== wpa_s
->global
->p2p_init_wpa_s
&& wpa_s
->global
->p2p
) {
8127 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disable P2P since removing "
8128 "the management interface is being removed");
8129 wpas_p2p_deinit_global(wpa_s
->global
);
8134 void wpas_p2p_ap_deinit(struct wpa_supplicant
*wpa_s
)
8136 if (wpa_s
->ap_iface
->bss
)
8137 wpa_s
->ap_iface
->bss
[0]->p2p_group
= NULL
;
8138 wpas_p2p_group_deinit(wpa_s
);