3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_common.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/wpa_ctrl.h"
16 #include "wps/wps_i.h"
18 #include "ap/hostapd.h"
19 #include "ap/ap_config.h"
20 #include "ap/p2p_hostapd.h"
21 #include "eapol_supp/eapol_supp_sm.h"
22 #include "rsn_supp/wpa.h"
23 #include "wpa_supplicant_i.h"
26 #include "config_ssid.h"
31 #include "offchannel.h"
32 #include "wps_supplicant.h"
33 #include "p2p_supplicant.h"
37 * How many times to try to scan to find the GO before giving up on join
40 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
42 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
44 #ifndef P2P_MAX_CLIENT_IDLE
46 * How many seconds to try to reconnect to the GO when connection in P2P client
49 #define P2P_MAX_CLIENT_IDLE 10
50 #endif /* P2P_MAX_CLIENT_IDLE */
52 #ifndef P2P_MAX_INITIAL_CONN_WAIT
54 * How many seconds to wait for initial 4-way handshake to get completed after
55 * WPS provisioning step.
57 #define P2P_MAX_INITIAL_CONN_WAIT 10
58 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
60 #ifndef P2P_CONCURRENT_SEARCH_DELAY
61 #define P2P_CONCURRENT_SEARCH_DELAY 500
62 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
64 enum p2p_group_removal_reason
{
65 P2P_GROUP_REMOVAL_UNKNOWN
,
66 P2P_GROUP_REMOVAL_SILENT
,
67 P2P_GROUP_REMOVAL_FORMATION_FAILED
,
68 P2P_GROUP_REMOVAL_REQUESTED
,
69 P2P_GROUP_REMOVAL_IDLE_TIMEOUT
,
70 P2P_GROUP_REMOVAL_UNAVAILABLE
,
71 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
75 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
76 static struct wpa_supplicant
*
77 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
79 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
);
80 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
);
81 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
);
82 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
83 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
85 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
);
86 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
);
87 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
);
88 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
);
89 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
91 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
93 static int wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
);
96 static void wpas_p2p_scan_res_handler(struct wpa_supplicant
*wpa_s
,
97 struct wpa_scan_results
*scan_res
)
101 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
104 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS)",
105 (int) scan_res
->num
);
107 for (i
= 0; i
< scan_res
->num
; i
++) {
108 struct wpa_scan_res
*bss
= scan_res
->res
[i
];
109 if (p2p_scan_res_handler(wpa_s
->global
->p2p
, bss
->bssid
,
110 bss
->freq
, bss
->age
, bss
->level
,
111 (const u8
*) (bss
+ 1),
116 p2p_scan_res_handled(wpa_s
->global
->p2p
);
120 static int wpas_p2p_scan(void *ctx
, enum p2p_scan_type type
, int freq
,
121 unsigned int num_req_dev_types
,
122 const u8
*req_dev_types
, const u8
*dev_id
, u16 pw_id
)
124 struct wpa_supplicant
*wpa_s
= ctx
;
125 struct wpa_supplicant
*ifs
;
126 struct wpa_driver_scan_params params
;
128 struct wpabuf
*wps_ie
, *ies
;
129 int social_channels
[] = { 2412, 2437, 2462, 0, 0 };
132 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
135 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
136 if (ifs
->sta_scan_pending
&&
137 wpas_p2p_in_progress(wpa_s
) == 2) {
138 wpa_printf(MSG_DEBUG
, "Delaying P2P scan to allow "
139 "pending station mode scan to be "
140 "completed on interface %s", ifs
->ifname
);
141 wpa_s
->global
->p2p_cb_on_scan_complete
= 1;
142 wpa_supplicant_req_scan(ifs
, 0, 0);
147 os_memset(¶ms
, 0, sizeof(params
));
149 /* P2P Wildcard SSID */
150 params
.num_ssids
= 1;
151 params
.ssids
[0].ssid
= (u8
*) P2P_WILDCARD_SSID
;
152 params
.ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
154 wpa_s
->wps
->dev
.p2p
= 1;
155 wps_ie
= wps_build_probe_req_ie(pw_id
, &wpa_s
->wps
->dev
,
156 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
,
157 num_req_dev_types
, req_dev_types
);
161 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
162 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
167 wpabuf_put_buf(ies
, wps_ie
);
170 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, dev_id
);
172 params
.p2p_probe
= 1;
173 params
.extra_ies
= wpabuf_head(ies
);
174 params
.extra_ies_len
= wpabuf_len(ies
);
177 case P2P_SCAN_SOCIAL
:
178 params
.freqs
= social_channels
;
182 case P2P_SCAN_SOCIAL_PLUS_ONE
:
183 social_channels
[3] = freq
;
184 params
.freqs
= social_channels
;
188 ret
= wpa_drv_scan(wpa_s
, ¶ms
);
193 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
195 ifs
->scan_res_handler
== wpas_p2p_scan_res_handler
) {
196 wpa_s
->global
->p2p_cb_on_scan_complete
= 1;
202 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_handler
;
208 static enum wpa_driver_if_type
wpas_p2p_if_type(int p2p_group_interface
)
210 switch (p2p_group_interface
) {
211 case P2P_GROUP_INTERFACE_PENDING
:
212 return WPA_IF_P2P_GROUP
;
213 case P2P_GROUP_INTERFACE_GO
:
214 return WPA_IF_P2P_GO
;
215 case P2P_GROUP_INTERFACE_CLIENT
:
216 return WPA_IF_P2P_CLIENT
;
219 return WPA_IF_P2P_GROUP
;
223 static struct wpa_supplicant
* wpas_get_p2p_group(struct wpa_supplicant
*wpa_s
,
225 size_t ssid_len
, int *go
)
229 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
230 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
231 if (s
->disabled
!= 0 || !s
->p2p_group
||
232 s
->ssid_len
!= ssid_len
||
233 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
235 if (s
->mode
== WPAS_MODE_P2P_GO
&&
236 s
!= wpa_s
->current_ssid
)
239 *go
= s
->mode
== WPAS_MODE_P2P_GO
;
248 static int wpas_p2p_group_delete(struct wpa_supplicant
*wpa_s
,
249 enum p2p_group_removal_reason removal_reason
)
251 struct wpa_ssid
*ssid
;
255 ssid
= wpa_s
->current_ssid
;
258 * The current SSID was not known, but there may still be a
259 * pending P2P group interface waiting for provisioning or a
260 * P2P group that is trying to reconnect.
262 ssid
= wpa_s
->conf
->ssid
;
264 if (ssid
->p2p_group
&& ssid
->disabled
!= 2)
269 wpa_s
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)
271 wpa_printf(MSG_ERROR
, "P2P: P2P group interface "
276 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
)
278 else if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
||
279 (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
)) {
280 wpa_s
->reassociate
= 0;
281 wpa_s
->disconnected
= 1;
282 wpa_supplicant_deauthenticate(wpa_s
,
283 WLAN_REASON_DEAUTH_LEAVING
);
287 if (wpa_s
->cross_connect_in_use
) {
288 wpa_s
->cross_connect_in_use
= 0;
289 wpa_msg(wpa_s
->parent
, MSG_INFO
,
290 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
291 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
293 switch (removal_reason
) {
294 case P2P_GROUP_REMOVAL_REQUESTED
:
295 reason
= " reason=REQUESTED";
297 case P2P_GROUP_REMOVAL_FORMATION_FAILED
:
298 reason
= " reason=FORMATION_FAILED";
300 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT
:
301 reason
= " reason=IDLE";
303 case P2P_GROUP_REMOVAL_UNAVAILABLE
:
304 reason
= " reason=UNAVAILABLE";
306 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION
:
307 reason
= " reason=GO_ENDING_SESSION";
313 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
) {
314 wpa_msg(wpa_s
->parent
, MSG_INFO
,
315 P2P_EVENT_GROUP_REMOVED
"%s %s%s",
316 wpa_s
->ifname
, gtype
, reason
);
319 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
320 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
321 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
322 wpa_s
->parent
, NULL
) > 0)
323 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group formation "
326 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
&& ssid
)
327 wpas_notify_p2p_group_removed(wpa_s
, ssid
, gtype
);
329 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
330 struct wpa_global
*global
;
332 enum wpa_driver_if_type type
;
333 wpa_printf(MSG_DEBUG
, "P2P: Remove group interface %s",
335 global
= wpa_s
->global
;
336 ifname
= os_strdup(wpa_s
->ifname
);
337 type
= wpas_p2p_if_type(wpa_s
->p2p_group_interface
);
338 wpa_supplicant_remove_iface(wpa_s
->global
, wpa_s
, 0);
339 wpa_s
= global
->ifaces
;
341 wpa_drv_if_remove(wpa_s
, type
, ifname
);
346 wpa_printf(MSG_DEBUG
, "P2P: Remove temporary group network");
347 if (ssid
&& (ssid
->p2p_group
||
348 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
||
349 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
))) {
351 if (ssid
== wpa_s
->current_ssid
) {
352 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
353 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
354 wpa_s
->current_ssid
= NULL
;
357 * Networks objects created during any P2P activities are not
358 * exposed out as they might/will confuse certain non-P2P aware
359 * applications since these network objects won't behave like
362 * Likewise, we don't send out network removed signals for such
365 wpa_config_remove_network(wpa_s
->conf
, id
);
366 wpa_supplicant_clear_status(wpa_s
);
367 wpa_supplicant_cancel_sched_scan(wpa_s
);
368 wpa_s
->sta_scan_pending
= 0;
370 wpa_printf(MSG_DEBUG
, "P2P: Temporary group network not "
374 wpa_supplicant_ap_deinit(wpa_s
);
376 wpa_drv_deinit_p2p_cli(wpa_s
);
382 static int wpas_p2p_persistent_group(struct wpa_supplicant
*wpa_s
,
384 const u8
*ssid
, size_t ssid_len
)
392 if (wpa_s
->go_params
)
393 bssid
= wpa_s
->go_params
->peer_interface_addr
;
395 bssid
= wpa_s
->bssid
;
397 bss
= wpa_bss_get(wpa_s
, bssid
, ssid
, ssid_len
);
399 u8 iface_addr
[ETH_ALEN
];
400 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, bssid
,
402 bss
= wpa_bss_get(wpa_s
, iface_addr
, ssid
, ssid_len
);
405 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
406 "group is persistent - BSS " MACSTR
" not found",
411 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
413 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
414 "group is persistent - BSS " MACSTR
415 " did not include P2P IE", MAC2STR(bssid
));
416 wpa_hexdump(MSG_DEBUG
, "P2P: Probe Response IEs",
417 (u8
*) (bss
+ 1), bss
->ie_len
);
418 wpa_hexdump(MSG_DEBUG
, "P2P: Beacon IEs",
419 ((u8
*) bss
+ 1) + bss
->ie_len
,
424 group_capab
= p2p_get_group_capab(p2p
);
425 addr
= p2p_get_go_dev_addr(p2p
);
426 wpa_printf(MSG_DEBUG
, "P2P: Checking whether group is persistent: "
427 "group_capab=0x%x", group_capab
);
429 os_memcpy(go_dev_addr
, addr
, ETH_ALEN
);
430 wpa_printf(MSG_DEBUG
, "P2P: GO Device Address " MACSTR
,
433 os_memset(go_dev_addr
, 0, ETH_ALEN
);
436 wpa_printf(MSG_DEBUG
, "P2P: BSS " MACSTR
" group_capab=0x%x "
437 "go_dev_addr=" MACSTR
,
438 MAC2STR(bssid
), group_capab
, MAC2STR(go_dev_addr
));
440 return group_capab
& P2P_GROUP_CAPAB_PERSISTENT_GROUP
;
444 static int wpas_p2p_store_persistent_group(struct wpa_supplicant
*wpa_s
,
445 struct wpa_ssid
*ssid
,
446 const u8
*go_dev_addr
)
451 wpa_printf(MSG_DEBUG
, "P2P: Storing credentials for a persistent "
452 "group (GO Dev Addr " MACSTR
")", MAC2STR(go_dev_addr
));
453 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
454 if (s
->disabled
== 2 &&
455 os_memcmp(go_dev_addr
, s
->bssid
, ETH_ALEN
) == 0 &&
456 s
->ssid_len
== ssid
->ssid_len
&&
457 os_memcmp(ssid
->ssid
, s
->ssid
, ssid
->ssid_len
) == 0)
462 wpa_printf(MSG_DEBUG
, "P2P: Update existing persistent group "
464 if (ssid
->passphrase
&& !s
->passphrase
)
466 else if (ssid
->passphrase
&& s
->passphrase
&&
467 os_strcmp(ssid
->passphrase
, s
->passphrase
) != 0)
470 wpa_printf(MSG_DEBUG
, "P2P: Create a new persistent group "
473 s
= wpa_config_add_network(wpa_s
->conf
);
478 * Instead of network_added we emit persistent_group_added
479 * notification. Also to keep the defense checks in
480 * persistent_group obj registration method, we set the
481 * relevant flags in s to designate it as a persistent group.
484 s
->p2p_persistent_group
= 1;
485 wpas_notify_persistent_group_added(wpa_s
, s
);
486 wpa_config_set_network_defaults(s
);
490 s
->p2p_persistent_group
= 1;
493 os_memcpy(s
->bssid
, go_dev_addr
, ETH_ALEN
);
494 s
->mode
= ssid
->mode
;
495 s
->auth_alg
= WPA_AUTH_ALG_OPEN
;
496 s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
497 s
->proto
= WPA_PROTO_RSN
;
498 s
->pairwise_cipher
= WPA_CIPHER_CCMP
;
500 if (ssid
->passphrase
) {
501 os_free(s
->passphrase
);
502 s
->passphrase
= os_strdup(ssid
->passphrase
);
506 os_memcpy(s
->psk
, ssid
->psk
, 32);
508 if (s
->passphrase
&& !s
->psk_set
)
509 wpa_config_update_psk(s
);
510 if (s
->ssid
== NULL
|| s
->ssid_len
< ssid
->ssid_len
) {
512 s
->ssid
= os_malloc(ssid
->ssid_len
);
515 s
->ssid_len
= ssid
->ssid_len
;
516 os_memcpy(s
->ssid
, ssid
->ssid
, s
->ssid_len
);
519 #ifndef CONFIG_NO_CONFIG_WRITE
520 if (changed
&& wpa_s
->conf
->update_config
&&
521 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
)) {
522 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
524 #endif /* CONFIG_NO_CONFIG_WRITE */
530 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant
*wpa_s
,
533 struct wpa_ssid
*ssid
, *s
;
538 ssid
= wpa_s
->current_ssid
;
539 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
540 !ssid
->p2p_persistent_group
)
543 for (s
= wpa_s
->parent
->conf
->ssid
; s
; s
= s
->next
) {
544 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
547 if (s
->ssid_len
== ssid
->ssid_len
&&
548 os_memcmp(s
->ssid
, ssid
->ssid
, s
->ssid_len
) == 0)
555 for (i
= 0; s
->p2p_client_list
&& i
< s
->num_p2p_clients
; i
++) {
556 if (os_memcmp(s
->p2p_client_list
+ i
* ETH_ALEN
, addr
,
560 if (i
== s
->num_p2p_clients
- 1)
561 return; /* already the most recent entry */
563 /* move the entry to mark it most recent */
564 os_memmove(s
->p2p_client_list
+ i
* ETH_ALEN
,
565 s
->p2p_client_list
+ (i
+ 1) * ETH_ALEN
,
566 (s
->num_p2p_clients
- i
- 1) * ETH_ALEN
);
567 os_memcpy(s
->p2p_client_list
+
568 (s
->num_p2p_clients
- 1) * ETH_ALEN
, addr
, ETH_ALEN
);
573 if (!found
&& s
->num_p2p_clients
< P2P_MAX_STORED_CLIENTS
) {
574 n
= os_realloc_array(s
->p2p_client_list
,
575 s
->num_p2p_clients
+ 1, ETH_ALEN
);
578 os_memcpy(n
+ s
->num_p2p_clients
* ETH_ALEN
, addr
, ETH_ALEN
);
579 s
->p2p_client_list
= n
;
580 s
->num_p2p_clients
++;
582 /* Not enough room for an additional entry - drop the oldest
584 os_memmove(s
->p2p_client_list
,
585 s
->p2p_client_list
+ ETH_ALEN
,
586 (s
->num_p2p_clients
- 1) * ETH_ALEN
);
587 os_memcpy(s
->p2p_client_list
+
588 (s
->num_p2p_clients
- 1) * ETH_ALEN
,
592 #ifndef CONFIG_NO_CONFIG_WRITE
593 if (wpa_s
->parent
->conf
->update_config
&&
594 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
595 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
596 #endif /* CONFIG_NO_CONFIG_WRITE */
600 static void wpas_group_formation_completed(struct wpa_supplicant
*wpa_s
,
603 struct wpa_ssid
*ssid
;
604 const char *ssid_txt
;
607 u8 go_dev_addr
[ETH_ALEN
];
611 * This callback is likely called for the main interface. Update wpa_s
612 * to use the group interface if a new interface was created for the
615 if (wpa_s
->global
->p2p_group_formation
)
616 wpa_s
= wpa_s
->global
->p2p_group_formation
;
617 wpa_s
->global
->p2p_group_formation
= NULL
;
618 wpa_s
->p2p_in_provisioning
= 0;
621 wpa_msg(wpa_s
->parent
, MSG_INFO
,
622 P2P_EVENT_GROUP_FORMATION_FAILURE
);
623 wpas_p2p_group_delete(wpa_s
,
624 P2P_GROUP_REMOVAL_FORMATION_FAILED
);
628 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_FORMATION_SUCCESS
);
630 ssid
= wpa_s
->current_ssid
;
631 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
632 ssid
->mode
= WPAS_MODE_P2P_GO
;
633 p2p_group_notif_formation_done(wpa_s
->p2p_group
);
634 wpa_supplicant_ap_mac_addr_filter(wpa_s
, NULL
);
639 ssid_txt
= wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
);
640 client
= ssid
->mode
== WPAS_MODE_INFRA
;
641 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
642 persistent
= ssid
->p2p_persistent_group
;
643 os_memcpy(go_dev_addr
, wpa_s
->global
->p2p_dev_addr
,
646 persistent
= wpas_p2p_persistent_group(wpa_s
,
652 client
= wpa_s
->p2p_group_interface
==
653 P2P_GROUP_INTERFACE_CLIENT
;
654 os_memset(go_dev_addr
, 0, ETH_ALEN
);
657 wpa_s
->show_group_started
= 0;
660 * Indicate event only after successfully completed 4-way
661 * handshake, i.e., when the interface is ready for data
664 wpa_s
->show_group_started
= 1;
665 } else if (ssid
&& ssid
->passphrase
== NULL
&& ssid
->psk_set
) {
667 wpa_snprintf_hex(psk
, sizeof(psk
), ssid
->psk
, 32);
668 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
669 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
671 wpa_s
->ifname
, ssid_txt
, ssid
->frequency
, psk
,
672 MAC2STR(go_dev_addr
),
673 persistent
? " [PERSISTENT]" : "");
674 wpas_p2p_cross_connect_setup(wpa_s
);
675 wpas_p2p_set_group_idle_timeout(wpa_s
);
677 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
678 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
679 "go_dev_addr=" MACSTR
"%s",
680 wpa_s
->ifname
, ssid_txt
, ssid
? ssid
->frequency
: 0,
681 ssid
&& ssid
->passphrase
? ssid
->passphrase
: "",
682 MAC2STR(go_dev_addr
),
683 persistent
? " [PERSISTENT]" : "");
684 wpas_p2p_cross_connect_setup(wpa_s
);
685 wpas_p2p_set_group_idle_timeout(wpa_s
);
689 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
691 if (network_id
< 0 && ssid
)
692 network_id
= ssid
->id
;
694 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
698 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant
*wpa_s
,
700 const u8
*dst
, const u8
*src
,
702 const u8
*data
, size_t data_len
,
703 enum offchannel_send_action_result
706 enum p2p_send_action_result res
= P2P_SEND_ACTION_SUCCESS
;
708 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
710 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
714 case OFFCHANNEL_SEND_ACTION_SUCCESS
:
715 res
= P2P_SEND_ACTION_SUCCESS
;
717 case OFFCHANNEL_SEND_ACTION_NO_ACK
:
718 res
= P2P_SEND_ACTION_NO_ACK
;
720 case OFFCHANNEL_SEND_ACTION_FAILED
:
721 res
= P2P_SEND_ACTION_FAILED
;
725 p2p_send_action_cb(wpa_s
->global
->p2p
, freq
, dst
, src
, bssid
, res
);
727 if (result
!= OFFCHANNEL_SEND_ACTION_SUCCESS
&&
728 wpa_s
->pending_pd_before_join
&&
729 (os_memcmp(dst
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
730 os_memcmp(dst
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0) &&
731 wpa_s
->p2p_fallback_to_go_neg
) {
732 wpa_s
->pending_pd_before_join
= 0;
733 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No ACK for PD Req "
734 "during p2p_connect-auto");
735 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
741 static int wpas_send_action(void *ctx
, unsigned int freq
, const u8
*dst
,
742 const u8
*src
, const u8
*bssid
, const u8
*buf
,
743 size_t len
, unsigned int wait_time
)
745 struct wpa_supplicant
*wpa_s
= ctx
;
746 return offchannel_send_action(wpa_s
, freq
, dst
, src
, bssid
, buf
, len
,
748 wpas_p2p_send_action_tx_status
, 1);
752 static void wpas_send_action_done(void *ctx
)
754 struct wpa_supplicant
*wpa_s
= ctx
;
755 offchannel_send_action_done(wpa_s
);
759 static int wpas_copy_go_neg_results(struct wpa_supplicant
*wpa_s
,
760 struct p2p_go_neg_results
*params
)
762 if (wpa_s
->go_params
== NULL
) {
763 wpa_s
->go_params
= os_malloc(sizeof(*params
));
764 if (wpa_s
->go_params
== NULL
)
767 os_memcpy(wpa_s
->go_params
, params
, sizeof(*params
));
772 static void wpas_start_wps_enrollee(struct wpa_supplicant
*wpa_s
,
773 struct p2p_go_neg_results
*res
)
775 wpa_printf(MSG_DEBUG
, "P2P: Start WPS Enrollee for peer " MACSTR
,
776 MAC2STR(res
->peer_interface_addr
));
777 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Start WPS Enrollee for SSID",
778 res
->ssid
, res
->ssid_len
);
779 wpa_supplicant_ap_deinit(wpa_s
);
780 wpas_copy_go_neg_results(wpa_s
, res
);
781 if (res
->wps_method
== WPS_PBC
)
782 wpas_wps_start_pbc(wpa_s
, res
->peer_interface_addr
, 1);
784 u16 dev_pw_id
= DEV_PW_DEFAULT
;
785 if (wpa_s
->p2p_wps_method
== WPS_PIN_KEYPAD
)
786 dev_pw_id
= DEV_PW_REGISTRAR_SPECIFIED
;
787 wpas_wps_start_pin(wpa_s
, res
->peer_interface_addr
,
788 wpa_s
->p2p_pin
, 1, dev_pw_id
);
793 static void p2p_go_configured(void *ctx
, void *data
)
795 struct wpa_supplicant
*wpa_s
= ctx
;
796 struct p2p_go_neg_results
*params
= data
;
797 struct wpa_ssid
*ssid
;
800 ssid
= wpa_s
->current_ssid
;
801 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GO
) {
802 wpa_printf(MSG_DEBUG
, "P2P: Group setup without provisioning");
803 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
804 wpa_s
->global
->p2p_group_formation
= NULL
;
805 if (os_strlen(params
->passphrase
) > 0) {
806 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
807 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
808 "go_dev_addr=" MACSTR
"%s", wpa_s
->ifname
,
809 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
),
810 ssid
->frequency
, params
->passphrase
,
811 MAC2STR(wpa_s
->global
->p2p_dev_addr
),
812 params
->persistent_group
? " [PERSISTENT]" :
816 wpa_snprintf_hex(psk
, sizeof(psk
), params
->psk
,
817 sizeof(params
->psk
));
818 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
819 "%s GO ssid=\"%s\" freq=%d psk=%s "
820 "go_dev_addr=" MACSTR
"%s", wpa_s
->ifname
,
821 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
),
822 ssid
->frequency
, psk
,
823 MAC2STR(wpa_s
->global
->p2p_dev_addr
),
824 params
->persistent_group
? " [PERSISTENT]" :
828 if (params
->persistent_group
)
829 network_id
= wpas_p2p_store_persistent_group(
831 wpa_s
->global
->p2p_dev_addr
);
833 network_id
= ssid
->id
;
834 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
835 wpas_p2p_cross_connect_setup(wpa_s
);
836 wpas_p2p_set_group_idle_timeout(wpa_s
);
840 wpa_printf(MSG_DEBUG
, "P2P: Setting up WPS for GO provisioning");
841 if (wpa_supplicant_ap_mac_addr_filter(wpa_s
,
842 params
->peer_interface_addr
)) {
843 wpa_printf(MSG_DEBUG
, "P2P: Failed to setup MAC address "
847 if (params
->wps_method
== WPS_PBC
)
848 wpa_supplicant_ap_wps_pbc(wpa_s
, params
->peer_interface_addr
,
849 params
->peer_device_addr
);
850 else if (wpa_s
->p2p_pin
[0])
851 wpa_supplicant_ap_wps_pin(wpa_s
, params
->peer_interface_addr
,
852 wpa_s
->p2p_pin
, NULL
, 0, 0);
853 os_free(wpa_s
->go_params
);
854 wpa_s
->go_params
= NULL
;
858 static void wpas_start_wps_go(struct wpa_supplicant
*wpa_s
,
859 struct p2p_go_neg_results
*params
,
862 struct wpa_ssid
*ssid
;
864 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Starting GO");
865 if (wpas_copy_go_neg_results(wpa_s
, params
) < 0) {
866 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not copy GO Negotiation "
871 ssid
= wpa_config_add_network(wpa_s
->conf
);
873 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not add network for GO");
877 wpa_s
->show_group_started
= 0;
879 wpa_config_set_network_defaults(ssid
);
882 ssid
->p2p_persistent_group
= params
->persistent_group
;
883 ssid
->mode
= group_formation
? WPAS_MODE_P2P_GROUP_FORMATION
:
885 ssid
->frequency
= params
->freq
;
886 ssid
->ht40
= params
->ht40
;
887 ssid
->ssid
= os_zalloc(params
->ssid_len
+ 1);
889 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
890 ssid
->ssid_len
= params
->ssid_len
;
892 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
893 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
894 ssid
->proto
= WPA_PROTO_RSN
;
895 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
896 if (os_strlen(params
->passphrase
) > 0) {
897 ssid
->passphrase
= os_strdup(params
->passphrase
);
898 if (ssid
->passphrase
== NULL
) {
899 wpa_msg(wpa_s
, MSG_ERROR
, "P2P: Failed to copy "
900 "passphrase for GO");
901 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
905 ssid
->passphrase
= NULL
;
906 ssid
->psk_set
= params
->psk_set
;
908 os_memcpy(ssid
->psk
, params
->psk
, sizeof(ssid
->psk
));
909 else if (ssid
->passphrase
)
910 wpa_config_update_psk(ssid
);
911 ssid
->ap_max_inactivity
= wpa_s
->parent
->conf
->p2p_go_max_inactivity
;
913 wpa_s
->ap_configured_cb
= p2p_go_configured
;
914 wpa_s
->ap_configured_cb_ctx
= wpa_s
;
915 wpa_s
->ap_configured_cb_data
= wpa_s
->go_params
;
916 wpa_s
->connect_without_scan
= ssid
;
917 wpa_s
->reassociate
= 1;
918 wpa_s
->disconnected
= 0;
919 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Request scan (that will be skipped) to "
921 wpa_supplicant_req_scan(wpa_s
, 0, 0);
925 static void wpas_p2p_clone_config(struct wpa_supplicant
*dst
,
926 const struct wpa_supplicant
*src
)
928 struct wpa_config
*d
;
929 const struct wpa_config
*s
;
934 #define C(n) if (s->n) d->n = os_strdup(s->n)
943 os_memcpy(d
->device_type
, s
->device_type
, WPS_DEV_TYPE_LEN
);
944 os_memcpy(d
->sec_device_type
, s
->sec_device_type
,
945 sizeof(d
->sec_device_type
));
946 d
->num_sec_device_types
= s
->num_sec_device_types
;
948 d
->p2p_group_idle
= s
->p2p_group_idle
;
949 d
->p2p_intra_bss
= s
->p2p_intra_bss
;
950 d
->persistent_reconnect
= s
->persistent_reconnect
;
951 d
->max_num_sta
= s
->max_num_sta
;
952 d
->pbc_in_m1
= s
->pbc_in_m1
;
956 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
957 enum wpa_driver_if_type type
)
959 char ifname
[120], force_ifname
[120];
961 if (wpa_s
->pending_interface_name
[0]) {
962 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual interface exists "
963 "- skip creation of a new one");
964 if (is_zero_ether_addr(wpa_s
->pending_interface_addr
)) {
965 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual address "
966 "unknown?! ifname='%s'",
967 wpa_s
->pending_interface_name
);
973 os_snprintf(ifname
, sizeof(ifname
), "p2p-%s-%d", wpa_s
->ifname
,
974 wpa_s
->p2p_group_idx
);
975 if (os_strlen(ifname
) >= IFNAMSIZ
&&
976 os_strlen(wpa_s
->ifname
) < IFNAMSIZ
) {
977 /* Try to avoid going over the IFNAMSIZ length limit */
978 os_snprintf(ifname
, sizeof(ifname
), "p2p-%d",
979 wpa_s
->p2p_group_idx
);
981 force_ifname
[0] = '\0';
983 wpa_printf(MSG_DEBUG
, "P2P: Create a new interface %s for the group",
985 wpa_s
->p2p_group_idx
++;
987 wpa_s
->pending_interface_type
= type
;
988 if (wpa_drv_if_add(wpa_s
, type
, ifname
, NULL
, NULL
, force_ifname
,
989 wpa_s
->pending_interface_addr
, NULL
) < 0) {
990 wpa_printf(MSG_ERROR
, "P2P: Failed to create new group "
995 if (force_ifname
[0]) {
996 wpa_printf(MSG_DEBUG
, "P2P: Driver forced interface name %s",
998 os_strlcpy(wpa_s
->pending_interface_name
, force_ifname
,
999 sizeof(wpa_s
->pending_interface_name
));
1001 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
1002 sizeof(wpa_s
->pending_interface_name
));
1003 wpa_printf(MSG_DEBUG
, "P2P: Created pending virtual interface %s addr "
1004 MACSTR
, wpa_s
->pending_interface_name
,
1005 MAC2STR(wpa_s
->pending_interface_addr
));
1011 static void wpas_p2p_remove_pending_group_interface(
1012 struct wpa_supplicant
*wpa_s
)
1014 if (!wpa_s
->pending_interface_name
[0] ||
1015 is_zero_ether_addr(wpa_s
->pending_interface_addr
))
1016 return; /* No pending virtual interface */
1018 wpa_printf(MSG_DEBUG
, "P2P: Removing pending group interface %s",
1019 wpa_s
->pending_interface_name
);
1020 wpa_drv_if_remove(wpa_s
, wpa_s
->pending_interface_type
,
1021 wpa_s
->pending_interface_name
);
1022 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
1023 wpa_s
->pending_interface_name
[0] = '\0';
1027 static struct wpa_supplicant
*
1028 wpas_p2p_init_group_interface(struct wpa_supplicant
*wpa_s
, int go
)
1030 struct wpa_interface iface
;
1031 struct wpa_supplicant
*group_wpa_s
;
1033 if (!wpa_s
->pending_interface_name
[0]) {
1034 wpa_printf(MSG_ERROR
, "P2P: No pending group interface");
1035 if (!wpas_p2p_create_iface(wpa_s
))
1038 * Something has forced us to remove the pending interface; try
1039 * to create a new one and hope for the best that we will get
1040 * the same local address.
1042 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
1043 WPA_IF_P2P_CLIENT
) < 0)
1047 os_memset(&iface
, 0, sizeof(iface
));
1048 iface
.ifname
= wpa_s
->pending_interface_name
;
1049 iface
.driver
= wpa_s
->driver
->name
;
1050 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
1051 iface
.driver_param
= wpa_s
->conf
->driver_param
;
1052 group_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
);
1053 if (group_wpa_s
== NULL
) {
1054 wpa_printf(MSG_ERROR
, "P2P: Failed to create new "
1055 "wpa_supplicant interface");
1058 wpa_s
->pending_interface_name
[0] = '\0';
1059 group_wpa_s
->parent
= wpa_s
;
1060 group_wpa_s
->p2p_group_interface
= go
? P2P_GROUP_INTERFACE_GO
:
1061 P2P_GROUP_INTERFACE_CLIENT
;
1062 wpa_s
->global
->p2p_group_formation
= group_wpa_s
;
1064 wpas_p2p_clone_config(group_wpa_s
, wpa_s
);
1070 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
1073 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
1074 wpa_printf(MSG_DEBUG
, "P2P: Group Formation timed out");
1075 if (wpa_s
->global
->p2p
)
1076 p2p_group_formation_failed(wpa_s
->global
->p2p
);
1077 else if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
1078 wpa_drv_p2p_group_formation_failed(wpa_s
);
1079 wpas_group_formation_completed(wpa_s
, 0);
1083 void wpas_go_neg_completed(void *ctx
, struct p2p_go_neg_results
*res
)
1085 struct wpa_supplicant
*wpa_s
= ctx
;
1087 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
1088 wpa_drv_cancel_remain_on_channel(wpa_s
);
1089 wpa_s
->off_channel_freq
= 0;
1090 wpa_s
->roc_waiting_drv_freq
= 0;
1094 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_FAILURE
"status=%d",
1096 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
1097 wpas_p2p_remove_pending_group_interface(wpa_s
);
1101 if (wpa_s
->p2p_go_ht40
)
1104 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_SUCCESS
);
1105 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
1107 if (res
->role_go
&& wpa_s
->p2p_persistent_id
>= 0) {
1108 struct wpa_ssid
*ssid
;
1109 ssid
= wpa_config_get_network(wpa_s
->conf
,
1110 wpa_s
->p2p_persistent_id
);
1111 if (ssid
&& ssid
->disabled
== 2 &&
1112 ssid
->mode
== WPAS_MODE_P2P_GO
&& ssid
->passphrase
) {
1113 size_t len
= os_strlen(ssid
->passphrase
);
1114 wpa_printf(MSG_DEBUG
, "P2P: Override passphrase based "
1115 "on requested persistent group");
1116 os_memcpy(res
->passphrase
, ssid
->passphrase
, len
);
1117 res
->passphrase
[len
] = '\0';
1121 if (wpa_s
->create_p2p_iface
) {
1122 struct wpa_supplicant
*group_wpa_s
=
1123 wpas_p2p_init_group_interface(wpa_s
, res
->role_go
);
1124 if (group_wpa_s
== NULL
) {
1125 wpas_p2p_remove_pending_group_interface(wpa_s
);
1128 if (group_wpa_s
!= wpa_s
) {
1129 os_memcpy(group_wpa_s
->p2p_pin
, wpa_s
->p2p_pin
,
1130 sizeof(group_wpa_s
->p2p_pin
));
1131 group_wpa_s
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
1133 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
1134 wpa_s
->pending_interface_name
[0] = '\0';
1135 group_wpa_s
->p2p_in_provisioning
= 1;
1138 wpas_start_wps_go(group_wpa_s
, res
, 1);
1140 wpas_start_wps_enrollee(group_wpa_s
, res
);
1142 wpa_s
->p2p_in_provisioning
= 1;
1143 wpa_s
->global
->p2p_group_formation
= wpa_s
;
1146 wpas_start_wps_go(wpa_s
, res
, 1);
1148 wpas_start_wps_enrollee(ctx
, res
);
1151 wpa_s
->p2p_long_listen
= 0;
1152 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
1154 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
1155 eloop_register_timeout(15 + res
->peer_config_timeout
/ 100,
1156 (res
->peer_config_timeout
% 100) * 10000,
1157 wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
1161 void wpas_go_neg_req_rx(void *ctx
, const u8
*src
, u16 dev_passwd_id
)
1163 struct wpa_supplicant
*wpa_s
= ctx
;
1164 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_REQUEST MACSTR
1165 " dev_passwd_id=%u", MAC2STR(src
), dev_passwd_id
);
1167 wpas_notify_p2p_go_neg_req(wpa_s
, src
, dev_passwd_id
);
1171 void wpas_dev_found(void *ctx
, const u8
*addr
,
1172 const struct p2p_peer_info
*info
,
1175 #ifndef CONFIG_NO_STDOUT_DEBUG
1176 struct wpa_supplicant
*wpa_s
= ctx
;
1177 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
1179 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_FOUND MACSTR
1180 " p2p_dev_addr=" MACSTR
1181 " pri_dev_type=%s name='%s' config_methods=0x%x "
1182 "dev_capab=0x%x group_capab=0x%x",
1183 MAC2STR(addr
), MAC2STR(info
->p2p_device_addr
),
1184 wps_dev_type_bin2str(info
->pri_dev_type
, devtype
,
1186 info
->device_name
, info
->config_methods
,
1187 info
->dev_capab
, info
->group_capab
);
1188 #endif /* CONFIG_NO_STDOUT_DEBUG */
1190 wpas_notify_p2p_device_found(ctx
, info
->p2p_device_addr
, new_device
);
1194 static void wpas_dev_lost(void *ctx
, const u8
*dev_addr
)
1196 struct wpa_supplicant
*wpa_s
= ctx
;
1198 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_LOST
1199 "p2p_dev_addr=" MACSTR
, MAC2STR(dev_addr
));
1201 wpas_notify_p2p_device_lost(wpa_s
, dev_addr
);
1205 static int wpas_start_listen(void *ctx
, unsigned int freq
,
1206 unsigned int duration
,
1207 const struct wpabuf
*probe_resp_ie
)
1209 struct wpa_supplicant
*wpa_s
= ctx
;
1211 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, probe_resp_ie
, NULL
);
1213 if (wpa_drv_probe_req_report(wpa_s
, 1) < 0) {
1214 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver to "
1215 "report received Probe Request frames");
1219 wpa_s
->pending_listen_freq
= freq
;
1220 wpa_s
->pending_listen_duration
= duration
;
1222 if (wpa_drv_remain_on_channel(wpa_s
, freq
, duration
) < 0) {
1223 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver "
1224 "to remain on channel (%u MHz) for Listen "
1226 wpa_s
->pending_listen_freq
= 0;
1229 wpa_s
->off_channel_freq
= 0;
1230 wpa_s
->roc_waiting_drv_freq
= freq
;
1236 static void wpas_stop_listen(void *ctx
)
1238 struct wpa_supplicant
*wpa_s
= ctx
;
1239 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
1240 wpa_drv_cancel_remain_on_channel(wpa_s
);
1241 wpa_s
->off_channel_freq
= 0;
1242 wpa_s
->roc_waiting_drv_freq
= 0;
1244 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, NULL
, NULL
);
1245 wpa_drv_probe_req_report(wpa_s
, 0);
1249 static int wpas_send_probe_resp(void *ctx
, const struct wpabuf
*buf
)
1251 struct wpa_supplicant
*wpa_s
= ctx
;
1252 return wpa_drv_send_mlme(wpa_s
, wpabuf_head(buf
), wpabuf_len(buf
), 1);
1257 * DNS Header section is used only to calculate compression pointers, so the
1258 * contents of this data does not matter, but the length needs to be reserved
1259 * in the virtual packet.
1261 #define DNS_HEADER_LEN 12
1264 * 27-octet in-memory packet from P2P specification containing two implied
1265 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1267 #define P2P_SD_IN_MEMORY_LEN 27
1269 static int p2p_sd_dns_uncompress_label(char **upos
, char *uend
, u8
*start
,
1270 u8
**spos
, const u8
*end
)
1272 while (*spos
< end
) {
1273 u8 val
= ((*spos
)[0] & 0xc0) >> 6;
1276 if (val
== 1 || val
== 2) {
1277 /* These are reserved values in RFC 1035 */
1278 wpa_printf(MSG_DEBUG
, "P2P: Invalid domain name "
1279 "sequence starting with 0x%x", val
);
1288 if (*spos
+ 2 > end
) {
1289 wpa_printf(MSG_DEBUG
, "P2P: No room for full "
1290 "DNS offset field");
1294 offset
= (((*spos
)[0] & 0x3f) << 8) | (*spos
)[1];
1295 if (offset
>= *spos
- start
) {
1296 wpa_printf(MSG_DEBUG
, "P2P: Invalid DNS "
1297 "pointer offset %u", offset
);
1302 spos_tmp
= start
+ offset
;
1303 return p2p_sd_dns_uncompress_label(upos
, uend
, start
,
1309 len
= (*spos
)[0] & 0x3f;
1314 if (*spos
+ len
> end
) {
1315 wpa_printf(MSG_DEBUG
, "P2P: Invalid domain name "
1316 "sequence - no room for label with length "
1321 if (*upos
+ len
+ 2 > uend
)
1324 os_memcpy(*upos
, *spos
, len
);
1336 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1337 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1338 * not large enough */
1339 static int p2p_sd_dns_uncompress(char *buf
, size_t buf_len
, const u8
*msg
,
1340 size_t msg_len
, size_t offset
)
1342 /* 27-octet in-memory packet from P2P specification */
1343 const char *prefix
= "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1344 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1345 u8
*tmp
, *end
, *spos
;
1351 if (offset
> msg_len
)
1354 tmp
= os_malloc(DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
+ msg_len
);
1357 spos
= tmp
+ DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
;
1358 end
= spos
+ msg_len
;
1361 os_memset(tmp
, 0, DNS_HEADER_LEN
);
1362 os_memcpy(tmp
+ DNS_HEADER_LEN
, prefix
, P2P_SD_IN_MEMORY_LEN
);
1363 os_memcpy(tmp
+ DNS_HEADER_LEN
+ P2P_SD_IN_MEMORY_LEN
, msg
, msg_len
);
1366 uend
= buf
+ buf_len
;
1368 ret
= p2p_sd_dns_uncompress_label(&upos
, uend
, tmp
, &spos
, end
);
1377 } else if (upos
[-1] == '.')
1385 static struct p2p_srv_bonjour
*
1386 wpas_p2p_service_get_bonjour(struct wpa_supplicant
*wpa_s
,
1387 const struct wpabuf
*query
)
1389 struct p2p_srv_bonjour
*bsrv
;
1392 len
= wpabuf_len(query
);
1393 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
1394 struct p2p_srv_bonjour
, list
) {
1395 if (len
== wpabuf_len(bsrv
->query
) &&
1396 os_memcmp(wpabuf_head(query
), wpabuf_head(bsrv
->query
),
1404 static struct p2p_srv_upnp
*
1405 wpas_p2p_service_get_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
1406 const char *service
)
1408 struct p2p_srv_upnp
*usrv
;
1410 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
1411 struct p2p_srv_upnp
, list
) {
1412 if (version
== usrv
->version
&&
1413 os_strcmp(service
, usrv
->service
) == 0)
1420 static void wpas_sd_add_proto_not_avail(struct wpabuf
*resp
, u8 srv_proto
,
1425 if (wpabuf_tailroom(resp
) < 5)
1428 /* Length (to be filled) */
1429 len_pos
= wpabuf_put(resp
, 2);
1430 wpabuf_put_u8(resp
, srv_proto
);
1431 wpabuf_put_u8(resp
, srv_trans_id
);
1433 wpabuf_put_u8(resp
, P2P_SD_PROTO_NOT_AVAILABLE
);
1434 /* Response Data: empty */
1435 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
1439 static void wpas_sd_all_bonjour(struct wpa_supplicant
*wpa_s
,
1440 struct wpabuf
*resp
, u8 srv_trans_id
)
1442 struct p2p_srv_bonjour
*bsrv
;
1445 wpa_printf(MSG_DEBUG
, "P2P: SD Request for all Bonjour services");
1447 if (dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
1448 wpa_printf(MSG_DEBUG
, "P2P: Bonjour protocol not available");
1452 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
1453 struct p2p_srv_bonjour
, list
) {
1454 if (wpabuf_tailroom(resp
) <
1455 5 + wpabuf_len(bsrv
->query
) + wpabuf_len(bsrv
->resp
))
1457 /* Length (to be filled) */
1458 len_pos
= wpabuf_put(resp
, 2);
1459 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
1460 wpabuf_put_u8(resp
, srv_trans_id
);
1462 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
1463 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Matching Bonjour service",
1464 wpabuf_head(bsrv
->resp
),
1465 wpabuf_len(bsrv
->resp
));
1467 wpabuf_put_buf(resp
, bsrv
->query
); /* Key */
1468 wpabuf_put_buf(resp
, bsrv
->resp
); /* Value */
1469 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
1475 static int match_bonjour_query(struct p2p_srv_bonjour
*bsrv
, const u8
*query
,
1478 char str_rx
[256], str_srv
[256];
1480 if (query_len
< 3 || wpabuf_len(bsrv
->query
) < 3)
1481 return 0; /* Too short to include DNS Type and Version */
1482 if (os_memcmp(query
+ query_len
- 3,
1483 wpabuf_head_u8(bsrv
->query
) + wpabuf_len(bsrv
->query
) - 3,
1485 return 0; /* Mismatch in DNS Type or Version */
1486 if (query_len
== wpabuf_len(bsrv
->query
) &&
1487 os_memcmp(query
, wpabuf_head(bsrv
->query
), query_len
- 3) == 0)
1488 return 1; /* Binary match */
1490 if (p2p_sd_dns_uncompress(str_rx
, sizeof(str_rx
), query
, query_len
- 3,
1492 return 0; /* Failed to uncompress query */
1493 if (p2p_sd_dns_uncompress(str_srv
, sizeof(str_srv
),
1494 wpabuf_head(bsrv
->query
),
1495 wpabuf_len(bsrv
->query
) - 3, 0))
1496 return 0; /* Failed to uncompress service */
1498 return os_strcmp(str_rx
, str_srv
) == 0;
1502 static void wpas_sd_req_bonjour(struct wpa_supplicant
*wpa_s
,
1503 struct wpabuf
*resp
, u8 srv_trans_id
,
1504 const u8
*query
, size_t query_len
)
1506 struct p2p_srv_bonjour
*bsrv
;
1510 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: SD Request for Bonjour",
1512 if (dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
1513 wpa_printf(MSG_DEBUG
, "P2P: Bonjour protocol not available");
1514 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_BONJOUR
,
1519 if (query_len
== 0) {
1520 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
1524 dl_list_for_each(bsrv
, &wpa_s
->global
->p2p_srv_bonjour
,
1525 struct p2p_srv_bonjour
, list
) {
1526 if (!match_bonjour_query(bsrv
, query
, query_len
))
1529 if (wpabuf_tailroom(resp
) <
1530 5 + query_len
+ wpabuf_len(bsrv
->resp
))
1535 /* Length (to be filled) */
1536 len_pos
= wpabuf_put(resp
, 2);
1537 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
1538 wpabuf_put_u8(resp
, srv_trans_id
);
1541 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
1542 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Matching Bonjour service",
1543 wpabuf_head(bsrv
->resp
),
1544 wpabuf_len(bsrv
->resp
));
1547 wpabuf_put_data(resp
, query
, query_len
); /* Key */
1548 wpabuf_put_buf(resp
, bsrv
->resp
); /* Value */
1550 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
1554 wpa_printf(MSG_DEBUG
, "P2P: Requested Bonjour service not "
1556 if (wpabuf_tailroom(resp
) < 5)
1559 /* Length (to be filled) */
1560 len_pos
= wpabuf_put(resp
, 2);
1561 wpabuf_put_u8(resp
, P2P_SERV_BONJOUR
);
1562 wpabuf_put_u8(resp
, srv_trans_id
);
1565 wpabuf_put_u8(resp
, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE
);
1566 /* Response Data: empty */
1567 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
1573 static void wpas_sd_all_upnp(struct wpa_supplicant
*wpa_s
,
1574 struct wpabuf
*resp
, u8 srv_trans_id
)
1576 struct p2p_srv_upnp
*usrv
;
1579 wpa_printf(MSG_DEBUG
, "P2P: SD Request for all UPnP services");
1581 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
)) {
1582 wpa_printf(MSG_DEBUG
, "P2P: UPnP protocol not available");
1586 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
1587 struct p2p_srv_upnp
, list
) {
1588 if (wpabuf_tailroom(resp
) < 5 + 1 + os_strlen(usrv
->service
))
1591 /* Length (to be filled) */
1592 len_pos
= wpabuf_put(resp
, 2);
1593 wpabuf_put_u8(resp
, P2P_SERV_UPNP
);
1594 wpabuf_put_u8(resp
, srv_trans_id
);
1597 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
1599 wpabuf_put_u8(resp
, usrv
->version
);
1600 wpa_printf(MSG_DEBUG
, "P2P: Matching UPnP Service: %s",
1602 wpabuf_put_str(resp
, usrv
->service
);
1603 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
-
1609 static void wpas_sd_req_upnp(struct wpa_supplicant
*wpa_s
,
1610 struct wpabuf
*resp
, u8 srv_trans_id
,
1611 const u8
*query
, size_t query_len
)
1613 struct p2p_srv_upnp
*usrv
;
1619 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: SD Request for UPnP",
1622 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
)) {
1623 wpa_printf(MSG_DEBUG
, "P2P: UPnP protocol not available");
1624 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_UPNP
,
1629 if (query_len
== 0) {
1630 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
1634 if (wpabuf_tailroom(resp
) < 5)
1637 /* Length (to be filled) */
1638 len_pos
= wpabuf_put(resp
, 2);
1639 wpabuf_put_u8(resp
, P2P_SERV_UPNP
);
1640 wpabuf_put_u8(resp
, srv_trans_id
);
1643 str
= os_malloc(query_len
);
1646 os_memcpy(str
, query
+ 1, query_len
- 1);
1647 str
[query_len
- 1] = '\0';
1649 dl_list_for_each(usrv
, &wpa_s
->global
->p2p_srv_upnp
,
1650 struct p2p_srv_upnp
, list
) {
1651 if (version
!= usrv
->version
)
1654 if (os_strcmp(str
, "ssdp:all") != 0 &&
1655 os_strstr(usrv
->service
, str
) == NULL
)
1658 if (wpabuf_tailroom(resp
) < 2)
1662 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
);
1664 wpabuf_put_u8(resp
, version
);
1666 wpabuf_put_u8(resp
, ',');
1670 wpa_printf(MSG_DEBUG
, "P2P: Matching UPnP Service: %s",
1672 if (wpabuf_tailroom(resp
) < os_strlen(usrv
->service
))
1674 wpabuf_put_str(resp
, usrv
->service
);
1679 wpa_printf(MSG_DEBUG
, "P2P: Requested UPnP service not "
1682 wpabuf_put_u8(resp
, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE
);
1683 /* Response Data: empty */
1686 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
1690 #ifdef CONFIG_WIFI_DISPLAY
1691 static void wpas_sd_req_wfd(struct wpa_supplicant
*wpa_s
,
1692 struct wpabuf
*resp
, u8 srv_trans_id
,
1693 const u8
*query
, size_t query_len
)
1699 wpa_hexdump(MSG_DEBUG
, "P2P: SD Request for WFD", query
, query_len
);
1701 if (!wpa_s
->global
->wifi_display
) {
1702 wpa_printf(MSG_DEBUG
, "P2P: WFD protocol not available");
1703 wpas_sd_add_proto_not_avail(resp
, P2P_SERV_WIFI_DISPLAY
,
1708 if (query_len
< 1) {
1709 wpa_printf(MSG_DEBUG
, "P2P: Missing WFD Requested Device "
1714 if (wpabuf_tailroom(resp
) < 5)
1719 wpa_printf(MSG_DEBUG
, "P2P: WSD for device role 0x%x", role
);
1721 /* TODO: role specific handling */
1723 /* Length (to be filled) */
1724 len_pos
= wpabuf_put(resp
, 2);
1725 wpabuf_put_u8(resp
, P2P_SERV_WIFI_DISPLAY
);
1726 wpabuf_put_u8(resp
, srv_trans_id
);
1727 wpabuf_put_u8(resp
, P2P_SD_SUCCESS
); /* Status Code */
1729 while (pos
< query
+ query_len
) {
1730 if (*pos
< MAX_WFD_SUBELEMS
&&
1731 wpa_s
->global
->wfd_subelem
[*pos
] &&
1732 wpabuf_tailroom(resp
) >=
1733 wpabuf_len(wpa_s
->global
->wfd_subelem
[*pos
])) {
1734 wpa_printf(MSG_DEBUG
, "P2P: Add WSD response "
1735 "subelement %u", *pos
);
1736 wpabuf_put_buf(resp
, wpa_s
->global
->wfd_subelem
[*pos
]);
1741 WPA_PUT_LE16(len_pos
, (u8
*) wpabuf_put(resp
, 0) - len_pos
- 2);
1743 #endif /* CONFIG_WIFI_DISPLAY */
1746 void wpas_sd_request(void *ctx
, int freq
, const u8
*sa
, u8 dialog_token
,
1747 u16 update_indic
, const u8
*tlvs
, size_t tlvs_len
)
1749 struct wpa_supplicant
*wpa_s
= ctx
;
1750 const u8
*pos
= tlvs
;
1751 const u8
*end
= tlvs
+ tlvs_len
;
1754 struct wpabuf
*resp
;
1755 u8 srv_proto
, srv_trans_id
;
1759 wpa_hexdump(MSG_MSGDUMP
, "P2P: Service Discovery Request TLVs",
1761 buf_len
= 2 * tlvs_len
+ 1;
1762 buf
= os_malloc(buf_len
);
1764 wpa_snprintf_hex(buf
, buf_len
, tlvs
, tlvs_len
);
1765 wpa_msg_ctrl(wpa_s
, MSG_INFO
, P2P_EVENT_SERV_DISC_REQ
"%d "
1767 freq
, MAC2STR(sa
), dialog_token
, update_indic
,
1772 if (wpa_s
->p2p_sd_over_ctrl_iface
) {
1773 wpas_notify_p2p_sd_request(wpa_s
, freq
, sa
, dialog_token
,
1774 update_indic
, tlvs
, tlvs_len
);
1775 return; /* to be processed by an external program */
1778 resp
= wpabuf_alloc(10000);
1782 while (pos
+ 1 < end
) {
1783 wpa_printf(MSG_DEBUG
, "P2P: Service Request TLV");
1784 slen
= WPA_GET_LE16(pos
);
1786 if (pos
+ slen
> end
|| slen
< 2) {
1787 wpa_printf(MSG_DEBUG
, "P2P: Unexpected Query Data "
1792 tlv_end
= pos
+ slen
;
1795 wpa_printf(MSG_DEBUG
, "P2P: Service Protocol Type %u",
1797 srv_trans_id
= *pos
++;
1798 wpa_printf(MSG_DEBUG
, "P2P: Service Transaction ID %u",
1801 wpa_hexdump(MSG_MSGDUMP
, "P2P: Query Data",
1802 pos
, tlv_end
- pos
);
1805 if (wpa_s
->force_long_sd
) {
1806 wpa_printf(MSG_DEBUG
, "P2P: SD test - force long "
1808 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
1809 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
1813 switch (srv_proto
) {
1814 case P2P_SERV_ALL_SERVICES
:
1815 wpa_printf(MSG_DEBUG
, "P2P: Service Discovery Request "
1816 "for all services");
1817 if (dl_list_empty(&wpa_s
->global
->p2p_srv_upnp
) &&
1818 dl_list_empty(&wpa_s
->global
->p2p_srv_bonjour
)) {
1819 wpa_printf(MSG_DEBUG
, "P2P: No service "
1820 "discovery protocols available");
1821 wpas_sd_add_proto_not_avail(
1822 resp
, P2P_SERV_ALL_SERVICES
,
1826 wpas_sd_all_bonjour(wpa_s
, resp
, srv_trans_id
);
1827 wpas_sd_all_upnp(wpa_s
, resp
, srv_trans_id
);
1829 case P2P_SERV_BONJOUR
:
1830 wpas_sd_req_bonjour(wpa_s
, resp
, srv_trans_id
,
1831 pos
, tlv_end
- pos
);
1834 wpas_sd_req_upnp(wpa_s
, resp
, srv_trans_id
,
1835 pos
, tlv_end
- pos
);
1837 #ifdef CONFIG_WIFI_DISPLAY
1838 case P2P_SERV_WIFI_DISPLAY
:
1839 wpas_sd_req_wfd(wpa_s
, resp
, srv_trans_id
,
1840 pos
, tlv_end
- pos
);
1842 #endif /* CONFIG_WIFI_DISPLAY */
1844 wpa_printf(MSG_DEBUG
, "P2P: Unavailable service "
1845 "protocol %u", srv_proto
);
1846 wpas_sd_add_proto_not_avail(resp
, srv_proto
,
1855 wpas_notify_p2p_sd_request(wpa_s
, freq
, sa
, dialog_token
,
1856 update_indic
, tlvs
, tlvs_len
);
1858 wpas_p2p_sd_response(wpa_s
, freq
, sa
, dialog_token
, resp
);
1864 void wpas_sd_response(void *ctx
, const u8
*sa
, u16 update_indic
,
1865 const u8
*tlvs
, size_t tlvs_len
)
1867 struct wpa_supplicant
*wpa_s
= ctx
;
1868 const u8
*pos
= tlvs
;
1869 const u8
*end
= tlvs
+ tlvs_len
;
1875 wpa_hexdump(MSG_MSGDUMP
, "P2P: Service Discovery Response TLVs",
1877 if (tlvs_len
> 1500) {
1878 /* TODO: better way for handling this */
1879 wpa_msg_ctrl(wpa_s
, MSG_INFO
,
1880 P2P_EVENT_SERV_DISC_RESP MACSTR
1881 " %u <long response: %u bytes>",
1882 MAC2STR(sa
), update_indic
,
1883 (unsigned int) tlvs_len
);
1885 buf_len
= 2 * tlvs_len
+ 1;
1886 buf
= os_malloc(buf_len
);
1888 wpa_snprintf_hex(buf
, buf_len
, tlvs
, tlvs_len
);
1889 wpa_msg_ctrl(wpa_s
, MSG_INFO
,
1890 P2P_EVENT_SERV_DISC_RESP MACSTR
" %u %s",
1891 MAC2STR(sa
), update_indic
, buf
);
1897 u8 srv_proto
, srv_trans_id
, status
;
1899 wpa_printf(MSG_DEBUG
, "P2P: Service Response TLV");
1900 slen
= WPA_GET_LE16(pos
);
1902 if (pos
+ slen
> end
|| slen
< 3) {
1903 wpa_printf(MSG_DEBUG
, "P2P: Unexpected Response Data "
1907 tlv_end
= pos
+ slen
;
1910 wpa_printf(MSG_DEBUG
, "P2P: Service Protocol Type %u",
1912 srv_trans_id
= *pos
++;
1913 wpa_printf(MSG_DEBUG
, "P2P: Service Transaction ID %u",
1916 wpa_printf(MSG_DEBUG
, "P2P: Status Code ID %u",
1919 wpa_hexdump(MSG_MSGDUMP
, "P2P: Response Data",
1920 pos
, tlv_end
- pos
);
1925 wpas_notify_p2p_sd_response(wpa_s
, sa
, update_indic
, tlvs
, tlvs_len
);
1929 u64
wpas_p2p_sd_request(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
1930 const struct wpabuf
*tlvs
)
1932 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
1933 return wpa_drv_p2p_sd_request(wpa_s
, dst
, tlvs
);
1934 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
1936 return (uintptr_t) p2p_sd_request(wpa_s
->global
->p2p
, dst
, tlvs
);
1940 u64
wpas_p2p_sd_request_upnp(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
1941 u8 version
, const char *query
)
1943 struct wpabuf
*tlvs
;
1946 tlvs
= wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query
));
1949 wpabuf_put_le16(tlvs
, 1 + 1 + 1 + os_strlen(query
));
1950 wpabuf_put_u8(tlvs
, P2P_SERV_UPNP
); /* Service Protocol Type */
1951 wpabuf_put_u8(tlvs
, 1); /* Service Transaction ID */
1952 wpabuf_put_u8(tlvs
, version
);
1953 wpabuf_put_str(tlvs
, query
);
1954 ret
= wpas_p2p_sd_request(wpa_s
, dst
, tlvs
);
1960 #ifdef CONFIG_WIFI_DISPLAY
1962 static u64
wpas_p2p_sd_request_wfd(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
1963 const struct wpabuf
*tlvs
)
1965 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
1967 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
1969 return (uintptr_t) p2p_sd_request_wfd(wpa_s
->global
->p2p
, dst
, tlvs
);
1973 #define MAX_WFD_SD_SUBELEMS 20
1975 static void wfd_add_sd_req_role(struct wpabuf
*tlvs
, u8 id
, u8 role
,
1976 const char *subelems
)
1983 len
= wpabuf_put(tlvs
, 2);
1984 wpabuf_put_u8(tlvs
, P2P_SERV_WIFI_DISPLAY
); /* Service Protocol Type */
1985 wpabuf_put_u8(tlvs
, id
); /* Service Transaction ID */
1987 wpabuf_put_u8(tlvs
, role
);
1992 if (val
>= 0 && val
< 256) {
1993 wpabuf_put_u8(tlvs
, val
);
1995 if (count
== MAX_WFD_SD_SUBELEMS
)
1998 pos
= os_strchr(pos
+ 1, ',');
2004 WPA_PUT_LE16(len
, (u8
*) wpabuf_put(tlvs
, 0) - len
- 2);
2008 u64
wpas_p2p_sd_request_wifi_display(struct wpa_supplicant
*wpa_s
,
2009 const u8
*dst
, const char *role
)
2011 struct wpabuf
*tlvs
;
2013 const char *subelems
;
2016 subelems
= os_strchr(role
, ' ');
2017 if (subelems
== NULL
)
2021 tlvs
= wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS
));
2025 if (os_strstr(role
, "[source]"))
2026 wfd_add_sd_req_role(tlvs
, id
++, 0x00, subelems
);
2027 if (os_strstr(role
, "[pri-sink]"))
2028 wfd_add_sd_req_role(tlvs
, id
++, 0x01, subelems
);
2029 if (os_strstr(role
, "[sec-sink]"))
2030 wfd_add_sd_req_role(tlvs
, id
++, 0x02, subelems
);
2031 if (os_strstr(role
, "[source+sink]"))
2032 wfd_add_sd_req_role(tlvs
, id
++, 0x03, subelems
);
2034 ret
= wpas_p2p_sd_request_wfd(wpa_s
, dst
, tlvs
);
2039 #endif /* CONFIG_WIFI_DISPLAY */
2042 int wpas_p2p_sd_cancel_request(struct wpa_supplicant
*wpa_s
, u64 req
)
2044 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
2045 return wpa_drv_p2p_sd_cancel_request(wpa_s
, req
);
2046 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2048 return p2p_sd_cancel_request(wpa_s
->global
->p2p
,
2049 (void *) (uintptr_t) req
);
2053 void wpas_p2p_sd_response(struct wpa_supplicant
*wpa_s
, int freq
,
2054 const u8
*dst
, u8 dialog_token
,
2055 const struct wpabuf
*resp_tlvs
)
2057 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
2058 wpa_drv_p2p_sd_response(wpa_s
, freq
, dst
, dialog_token
,
2062 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
2064 p2p_sd_response(wpa_s
->global
->p2p
, freq
, dst
, dialog_token
,
2069 void wpas_p2p_sd_service_update(struct wpa_supplicant
*wpa_s
)
2071 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
2072 wpa_drv_p2p_service_update(wpa_s
);
2075 if (wpa_s
->global
->p2p
)
2076 p2p_sd_service_update(wpa_s
->global
->p2p
);
2080 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour
*bsrv
)
2082 dl_list_del(&bsrv
->list
);
2083 wpabuf_free(bsrv
->query
);
2084 wpabuf_free(bsrv
->resp
);
2089 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp
*usrv
)
2091 dl_list_del(&usrv
->list
);
2092 os_free(usrv
->service
);
2097 void wpas_p2p_service_flush(struct wpa_supplicant
*wpa_s
)
2099 struct p2p_srv_bonjour
*bsrv
, *bn
;
2100 struct p2p_srv_upnp
*usrv
, *un
;
2102 dl_list_for_each_safe(bsrv
, bn
, &wpa_s
->global
->p2p_srv_bonjour
,
2103 struct p2p_srv_bonjour
, list
)
2104 wpas_p2p_srv_bonjour_free(bsrv
);
2106 dl_list_for_each_safe(usrv
, un
, &wpa_s
->global
->p2p_srv_upnp
,
2107 struct p2p_srv_upnp
, list
)
2108 wpas_p2p_srv_upnp_free(usrv
);
2110 wpas_p2p_sd_service_update(wpa_s
);
2114 int wpas_p2p_service_add_bonjour(struct wpa_supplicant
*wpa_s
,
2115 struct wpabuf
*query
, struct wpabuf
*resp
)
2117 struct p2p_srv_bonjour
*bsrv
;
2119 bsrv
= os_zalloc(sizeof(*bsrv
));
2122 bsrv
->query
= query
;
2124 dl_list_add(&wpa_s
->global
->p2p_srv_bonjour
, &bsrv
->list
);
2126 wpas_p2p_sd_service_update(wpa_s
);
2131 int wpas_p2p_service_del_bonjour(struct wpa_supplicant
*wpa_s
,
2132 const struct wpabuf
*query
)
2134 struct p2p_srv_bonjour
*bsrv
;
2136 bsrv
= wpas_p2p_service_get_bonjour(wpa_s
, query
);
2139 wpas_p2p_srv_bonjour_free(bsrv
);
2140 wpas_p2p_sd_service_update(wpa_s
);
2145 int wpas_p2p_service_add_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
2146 const char *service
)
2148 struct p2p_srv_upnp
*usrv
;
2150 if (wpas_p2p_service_get_upnp(wpa_s
, version
, service
))
2151 return 0; /* Already listed */
2152 usrv
= os_zalloc(sizeof(*usrv
));
2155 usrv
->version
= version
;
2156 usrv
->service
= os_strdup(service
);
2157 if (usrv
->service
== NULL
) {
2161 dl_list_add(&wpa_s
->global
->p2p_srv_upnp
, &usrv
->list
);
2163 wpas_p2p_sd_service_update(wpa_s
);
2168 int wpas_p2p_service_del_upnp(struct wpa_supplicant
*wpa_s
, u8 version
,
2169 const char *service
)
2171 struct p2p_srv_upnp
*usrv
;
2173 usrv
= wpas_p2p_service_get_upnp(wpa_s
, version
, service
);
2176 wpas_p2p_srv_upnp_free(usrv
);
2177 wpas_p2p_sd_service_update(wpa_s
);
2182 static void wpas_prov_disc_local_display(struct wpa_supplicant
*wpa_s
,
2183 const u8
*peer
, const char *params
,
2184 unsigned int generated_pin
)
2186 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
" %08d%s",
2187 MAC2STR(peer
), generated_pin
, params
);
2191 static void wpas_prov_disc_local_keypad(struct wpa_supplicant
*wpa_s
,
2192 const u8
*peer
, const char *params
)
2194 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
"%s",
2195 MAC2STR(peer
), params
);
2199 void wpas_prov_disc_req(void *ctx
, const u8
*peer
, u16 config_methods
,
2200 const u8
*dev_addr
, const u8
*pri_dev_type
,
2201 const char *dev_name
, u16 supp_config_methods
,
2202 u8 dev_capab
, u8 group_capab
, const u8
*group_id
,
2203 size_t group_id_len
)
2205 struct wpa_supplicant
*wpa_s
= ctx
;
2206 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2208 u8 empty_dev_type
[8];
2209 unsigned int generated_pin
= 0;
2210 struct wpa_supplicant
*group
= NULL
;
2213 for (group
= wpa_s
->global
->ifaces
; group
; group
= group
->next
)
2215 struct wpa_ssid
*s
= group
->current_ssid
;
2217 s
->mode
== WPAS_MODE_P2P_GO
&&
2218 group_id_len
- ETH_ALEN
== s
->ssid_len
&&
2219 os_memcmp(group_id
+ ETH_ALEN
, s
->ssid
,
2225 if (pri_dev_type
== NULL
) {
2226 os_memset(empty_dev_type
, 0, sizeof(empty_dev_type
));
2227 pri_dev_type
= empty_dev_type
;
2229 os_snprintf(params
, sizeof(params
), " p2p_dev_addr=" MACSTR
2230 " pri_dev_type=%s name='%s' config_methods=0x%x "
2231 "dev_capab=0x%x group_capab=0x%x%s%s",
2233 wps_dev_type_bin2str(pri_dev_type
, devtype
,
2235 dev_name
, supp_config_methods
, dev_capab
, group_capab
,
2236 group
? " group=" : "",
2237 group
? group
->ifname
: "");
2238 params
[sizeof(params
) - 1] = '\0';
2240 if (config_methods
& WPS_CONFIG_DISPLAY
) {
2241 generated_pin
= wps_generate_pin();
2242 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2244 } else if (config_methods
& WPS_CONFIG_KEYPAD
)
2245 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2246 else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2247 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2248 "%s", MAC2STR(peer
), params
);
2250 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 1 /* request */,
2251 P2P_PROV_DISC_SUCCESS
,
2252 config_methods
, generated_pin
);
2256 void wpas_prov_disc_resp(void *ctx
, const u8
*peer
, u16 config_methods
)
2258 struct wpa_supplicant
*wpa_s
= ctx
;
2259 unsigned int generated_pin
= 0;
2262 if (wpa_s
->pending_pd_before_join
&&
2263 (os_memcmp(peer
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
2264 os_memcmp(peer
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0)) {
2265 wpa_s
->pending_pd_before_join
= 0;
2266 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2267 "join-existing-group operation");
2268 wpas_p2p_join_start(wpa_s
);
2272 if (wpa_s
->pending_pd_use
== AUTO_PD_JOIN
||
2273 wpa_s
->pending_pd_use
== AUTO_PD_GO_NEG
)
2274 os_snprintf(params
, sizeof(params
), " peer_go=%d",
2275 wpa_s
->pending_pd_use
== AUTO_PD_JOIN
);
2279 if (config_methods
& WPS_CONFIG_DISPLAY
)
2280 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2281 else if (config_methods
& WPS_CONFIG_KEYPAD
) {
2282 generated_pin
= wps_generate_pin();
2283 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2285 } else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2286 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2287 "%s", MAC2STR(peer
), params
);
2289 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2290 P2P_PROV_DISC_SUCCESS
,
2291 config_methods
, generated_pin
);
2295 static void wpas_prov_disc_fail(void *ctx
, const u8
*peer
,
2296 enum p2p_prov_disc_status status
)
2298 struct wpa_supplicant
*wpa_s
= ctx
;
2300 if (wpa_s
->p2p_fallback_to_go_neg
) {
2301 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: PD for p2p_connect-auto "
2302 "failed - fall back to GO Negotiation");
2303 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
2307 if (status
== P2P_PROV_DISC_TIMEOUT_JOIN
) {
2308 wpa_s
->pending_pd_before_join
= 0;
2309 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2310 "join-existing-group operation (no ACK for PD "
2312 wpas_p2p_join_start(wpa_s
);
2316 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2317 " p2p_dev_addr=" MACSTR
" status=%d",
2318 MAC2STR(peer
), status
);
2320 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2325 static u8
wpas_invitation_process(void *ctx
, const u8
*sa
, const u8
*bssid
,
2326 const u8
*go_dev_addr
, const u8
*ssid
,
2327 size_t ssid_len
, int *go
, u8
*group_bssid
,
2328 int *force_freq
, int persistent_group
)
2330 struct wpa_supplicant
*wpa_s
= ctx
;
2332 u8 cur_bssid
[ETH_ALEN
];
2334 struct wpa_supplicant
*grp
;
2336 if (!persistent_group
) {
2337 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2338 " to join an active group", MAC2STR(sa
));
2339 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
2340 (os_memcmp(go_dev_addr
, wpa_s
->p2p_auth_invite
, ETH_ALEN
)
2342 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0)) {
2343 wpa_printf(MSG_DEBUG
, "P2P: Accept previously "
2344 "authorized invitation");
2348 * Do not accept the invitation automatically; notify user and
2351 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2354 grp
= wpas_get_p2p_group(wpa_s
, ssid
, ssid_len
, go
);
2356 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation to already "
2357 "running persistent group");
2359 os_memcpy(group_bssid
, grp
->own_addr
, ETH_ALEN
);
2363 if (!wpa_s
->conf
->persistent_reconnect
)
2364 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2366 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2367 if (s
->disabled
== 2 &&
2368 os_memcmp(s
->bssid
, go_dev_addr
, ETH_ALEN
) == 0 &&
2369 s
->ssid_len
== ssid_len
&&
2370 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2375 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2376 " requested reinvocation of an unknown group",
2378 return P2P_SC_FAIL_UNKNOWN_GROUP
;
2381 if (s
->mode
== WPAS_MODE_P2P_GO
&& !wpas_p2p_create_iface(wpa_s
)) {
2383 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
) {
2384 wpa_printf(MSG_DEBUG
, "P2P: The only available "
2385 "interface is already in use - reject "
2387 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2389 os_memcpy(group_bssid
, wpa_s
->own_addr
, ETH_ALEN
);
2390 } else if (s
->mode
== WPAS_MODE_P2P_GO
) {
2392 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
) < 0)
2394 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
2395 "interface address for the group");
2396 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2398 os_memcpy(group_bssid
, wpa_s
->pending_interface_addr
,
2403 if (wpa_s
->current_ssid
&& wpa_drv_get_bssid(wpa_s
, cur_bssid
) == 0 &&
2404 wpa_s
->assoc_freq
) {
2405 wpa_printf(MSG_DEBUG
, "P2P: Trying to force channel to match "
2406 "the channel we are already using");
2407 *force_freq
= wpa_s
->assoc_freq
;
2410 res
= wpa_drv_shared_freq(wpa_s
);
2412 wpa_printf(MSG_DEBUG
, "P2P: Trying to force channel to match "
2413 "with the channel we are already using on a "
2414 "shared interface");
2418 return P2P_SC_SUCCESS
;
2422 static void wpas_invitation_received(void *ctx
, const u8
*sa
, const u8
*bssid
,
2423 const u8
*ssid
, size_t ssid_len
,
2424 const u8
*go_dev_addr
, u8 status
,
2427 struct wpa_supplicant
*wpa_s
= ctx
;
2430 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2431 if (s
->disabled
== 2 &&
2432 s
->ssid_len
== ssid_len
&&
2433 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2437 if (status
== P2P_SC_SUCCESS
) {
2438 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2439 " was accepted; op_freq=%d MHz",
2440 MAC2STR(sa
), op_freq
);
2442 int go
= s
->mode
== WPAS_MODE_P2P_GO
;
2443 wpas_p2p_group_add_persistent(
2444 wpa_s
, s
, go
, go
? op_freq
: 0, 0);
2446 wpa_s
->user_initiated_pd
= 0;
2447 wpas_p2p_join(wpa_s
, bssid
, go_dev_addr
,
2448 wpa_s
->p2p_wps_method
, 0);
2453 if (status
!= P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
2454 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2455 " was rejected (status %u)", MAC2STR(sa
), status
);
2461 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
2462 "sa=" MACSTR
" go_dev_addr=" MACSTR
2463 " bssid=" MACSTR
" unknown-network",
2464 MAC2STR(sa
), MAC2STR(go_dev_addr
),
2467 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
2468 "sa=" MACSTR
" go_dev_addr=" MACSTR
2470 MAC2STR(sa
), MAC2STR(go_dev_addr
));
2475 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
"sa=" MACSTR
2476 " persistent=%d", MAC2STR(sa
), s
->id
);
2480 static void wpas_invitation_result(void *ctx
, int status
, const u8
*bssid
)
2482 struct wpa_supplicant
*wpa_s
= ctx
;
2483 struct wpa_ssid
*ssid
;
2486 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
2487 "status=%d " MACSTR
,
2488 status
, MAC2STR(bssid
));
2490 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
2491 "status=%d ", status
);
2493 wpas_notify_p2p_invitation_result(wpa_s
, status
, bssid
);
2495 if (wpa_s
->pending_invite_ssid_id
== -1)
2496 return; /* Invitation to active group */
2498 if (status
!= P2P_SC_SUCCESS
) {
2499 wpas_p2p_remove_pending_group_interface(wpa_s
);
2503 ssid
= wpa_config_get_network(wpa_s
->conf
,
2504 wpa_s
->pending_invite_ssid_id
);
2506 wpa_printf(MSG_ERROR
, "P2P: Could not find persistent group "
2507 "data matching with invitation");
2512 * The peer could have missed our ctrl::ack frame for Invitation
2513 * Response and continue retransmitting the frame. To reduce the
2514 * likelihood of the peer not getting successful TX status for the
2515 * Invitation Response frame, wait a short time here before starting
2516 * the persistent group so that we will remain on the current channel to
2517 * acknowledge any possible retransmission from the peer.
2519 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: 50 ms wait on current channel before "
2520 "starting persistent group");
2523 wpas_p2p_group_add_persistent(wpa_s
, ssid
,
2524 ssid
->mode
== WPAS_MODE_P2P_GO
,
2525 wpa_s
->p2p_persistent_go_freq
,
2526 wpa_s
->p2p_go_ht40
);
2530 static int wpas_p2p_disallowed_freq(struct wpa_global
*global
,
2535 if (global
->p2p_disallow_freq
== NULL
)
2538 for (i
= 0; i
< global
->num_p2p_disallow_freq
; i
++) {
2539 if (freq
>= global
->p2p_disallow_freq
[i
].min
&&
2540 freq
<= global
->p2p_disallow_freq
[i
].max
)
2548 static void wpas_p2p_add_chan(struct p2p_reg_class
*reg
, u8 chan
)
2550 reg
->channel
[reg
->channels
] = chan
;
2555 static int wpas_p2p_default_channels(struct wpa_supplicant
*wpa_s
,
2556 struct p2p_channels
*chan
)
2560 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for 2.4 GHz "
2563 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2564 chan
->reg_class
[cla
].reg_class
= 81;
2565 chan
->reg_class
[cla
].channels
= 0;
2566 for (i
= 0; i
< 11; i
++) {
2567 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 2412 + i
* 5))
2568 wpas_p2p_add_chan(&chan
->reg_class
[cla
], i
+ 1);
2570 if (chan
->reg_class
[cla
].channels
)
2573 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for lower 5 GHz "
2576 /* Operating class 115 - 5 GHz, channels 36-48 */
2577 chan
->reg_class
[cla
].reg_class
= 115;
2578 chan
->reg_class
[cla
].channels
= 0;
2579 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 36 * 5))
2580 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 36);
2581 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 40 * 5))
2582 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 40);
2583 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 44 * 5))
2584 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 44);
2585 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 48 * 5))
2586 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 48);
2587 if (chan
->reg_class
[cla
].channels
)
2590 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for higher 5 GHz "
2593 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2594 chan
->reg_class
[cla
].reg_class
= 124;
2595 chan
->reg_class
[cla
].channels
= 0;
2596 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 149 * 5))
2597 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 149);
2598 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 153 * 5))
2599 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 153);
2600 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 156 * 5))
2601 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 157);
2602 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 161 * 5))
2603 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 161);
2604 if (chan
->reg_class
[cla
].channels
)
2607 chan
->reg_classes
= cla
;
2612 static struct hostapd_hw_modes
* get_mode(struct hostapd_hw_modes
*modes
,
2614 enum hostapd_hw_mode mode
)
2618 for (i
= 0; i
< num_modes
; i
++) {
2619 if (modes
[i
].mode
== mode
)
2627 static int has_channel(struct wpa_global
*global
,
2628 struct hostapd_hw_modes
*mode
, u8 chan
, int *flags
)
2633 freq
= (mode
->mode
== HOSTAPD_MODE_IEEE80211A
? 5000 : 2407) +
2635 if (wpas_p2p_disallowed_freq(global
, freq
))
2638 for (i
= 0; i
< mode
->num_channels
; i
++) {
2639 if (mode
->channels
[i
].chan
== chan
) {
2641 *flags
= mode
->channels
[i
].flag
;
2642 return !(mode
->channels
[i
].flag
&
2643 (HOSTAPD_CHAN_DISABLED
|
2644 HOSTAPD_CHAN_PASSIVE_SCAN
|
2645 HOSTAPD_CHAN_NO_IBSS
|
2646 HOSTAPD_CHAN_RADAR
));
2654 struct p2p_oper_class_map
{
2655 enum hostapd_hw_mode mode
;
2660 enum { BW20
, BW40PLUS
, BW40MINUS
} bw
;
2663 static struct p2p_oper_class_map op_class
[] = {
2664 { HOSTAPD_MODE_IEEE80211G
, 81, 1, 13, 1, BW20
},
2665 #if 0 /* Do not enable HT40 on 2 GHz for now */
2666 { HOSTAPD_MODE_IEEE80211G
, 83, 1, 9, 1, BW40PLUS
},
2667 { HOSTAPD_MODE_IEEE80211G
, 84, 5, 13, 1, BW40MINUS
},
2669 { HOSTAPD_MODE_IEEE80211A
, 115, 36, 48, 4, BW20
},
2670 { HOSTAPD_MODE_IEEE80211A
, 124, 149, 161, 4, BW20
},
2671 { HOSTAPD_MODE_IEEE80211A
, 116, 36, 44, 8, BW40PLUS
},
2672 { HOSTAPD_MODE_IEEE80211A
, 117, 40, 48, 8, BW40MINUS
},
2673 { HOSTAPD_MODE_IEEE80211A
, 126, 149, 157, 8, BW40PLUS
},
2674 { HOSTAPD_MODE_IEEE80211A
, 127, 153, 161, 8, BW40MINUS
},
2675 { -1, 0, 0, 0, 0, BW20
}
2679 static int wpas_p2p_verify_channel(struct wpa_supplicant
*wpa_s
,
2680 struct hostapd_hw_modes
*mode
,
2685 if (!has_channel(wpa_s
->global
, mode
, channel
, &flag
))
2687 if (bw
== BW40MINUS
&&
2688 (!(flag
& HOSTAPD_CHAN_HT40MINUS
) ||
2689 !has_channel(wpa_s
->global
, mode
, channel
- 4, NULL
)))
2691 if (bw
== BW40PLUS
&&
2692 (!(flag
& HOSTAPD_CHAN_HT40PLUS
) ||
2693 !has_channel(wpa_s
->global
, mode
, channel
+ 4, NULL
)))
2699 static int wpas_p2p_setup_channels(struct wpa_supplicant
*wpa_s
,
2700 struct p2p_channels
*chan
)
2702 struct hostapd_hw_modes
*mode
;
2705 if (wpa_s
->hw
.modes
== NULL
) {
2706 wpa_printf(MSG_DEBUG
, "P2P: Driver did not support fetching "
2707 "of all supported channels; assume dualband "
2709 return wpas_p2p_default_channels(wpa_s
, chan
);
2714 for (op
= 0; op_class
[op
].op_class
; op
++) {
2715 struct p2p_oper_class_map
*o
= &op_class
[op
];
2717 struct p2p_reg_class
*reg
= NULL
;
2719 mode
= get_mode(wpa_s
->hw
.modes
, wpa_s
->hw
.num_modes
, o
->mode
);
2722 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
2723 if (wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
) < 1)
2726 wpa_printf(MSG_DEBUG
, "P2P: Add operating "
2727 "class %u", o
->op_class
);
2728 reg
= &chan
->reg_class
[cla
];
2730 reg
->reg_class
= o
->op_class
;
2732 reg
->channel
[reg
->channels
] = ch
;
2736 wpa_hexdump(MSG_DEBUG
, "P2P: Channels",
2737 reg
->channel
, reg
->channels
);
2741 chan
->reg_classes
= cla
;
2747 int wpas_p2p_get_ht40_mode(struct wpa_supplicant
*wpa_s
,
2748 struct hostapd_hw_modes
*mode
, u8 channel
)
2752 for (op
= 0; op_class
[op
].op_class
; op
++) {
2753 struct p2p_oper_class_map
*o
= &op_class
[op
];
2756 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
2757 if (o
->mode
!= HOSTAPD_MODE_IEEE80211A
||
2758 o
->bw
== BW20
|| ch
!= channel
)
2760 ret
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
2764 return (o
->bw
== BW40MINUS
) ? -1 : 1;
2773 static int wpas_get_noa(void *ctx
, const u8
*interface_addr
, u8
*buf
,
2776 struct wpa_supplicant
*wpa_s
= ctx
;
2778 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
2779 if (os_memcmp(wpa_s
->own_addr
, interface_addr
, ETH_ALEN
) == 0)
2785 return wpa_drv_get_noa(wpa_s
, buf
, buf_len
);
2789 static int wpas_go_connected(void *ctx
, const u8
*dev_addr
)
2791 struct wpa_supplicant
*wpa_s
= ctx
;
2793 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
2794 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
2797 if (ssid
->mode
!= WPAS_MODE_INFRA
)
2799 if (wpa_s
->wpa_state
!= WPA_COMPLETED
&&
2800 wpa_s
->wpa_state
!= WPA_GROUP_HANDSHAKE
)
2802 if (os_memcmp(wpa_s
->go_dev_addr
, dev_addr
, ETH_ALEN
) == 0)
2811 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2812 * @global: Pointer to global data from wpa_supplicant_init()
2813 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2814 * Returns: 0 on success, -1 on failure
2816 int wpas_p2p_init(struct wpa_global
*global
, struct wpa_supplicant
*wpa_s
)
2818 struct p2p_config p2p
;
2822 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
2828 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
2829 struct p2p_params params
;
2831 wpa_printf(MSG_DEBUG
, "P2P: Use driver-based P2P management");
2832 os_memset(¶ms
, 0, sizeof(params
));
2833 params
.dev_name
= wpa_s
->conf
->device_name
;
2834 os_memcpy(params
.pri_dev_type
, wpa_s
->conf
->device_type
,
2836 params
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
2837 os_memcpy(params
.sec_dev_type
,
2838 wpa_s
->conf
->sec_device_type
,
2839 params
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
2841 if (wpa_drv_p2p_set_params(wpa_s
, ¶ms
) < 0)
2847 os_memset(&p2p
, 0, sizeof(p2p
));
2848 p2p
.msg_ctx
= wpa_s
;
2850 p2p
.p2p_scan
= wpas_p2p_scan
;
2851 p2p
.send_action
= wpas_send_action
;
2852 p2p
.send_action_done
= wpas_send_action_done
;
2853 p2p
.go_neg_completed
= wpas_go_neg_completed
;
2854 p2p
.go_neg_req_rx
= wpas_go_neg_req_rx
;
2855 p2p
.dev_found
= wpas_dev_found
;
2856 p2p
.dev_lost
= wpas_dev_lost
;
2857 p2p
.start_listen
= wpas_start_listen
;
2858 p2p
.stop_listen
= wpas_stop_listen
;
2859 p2p
.send_probe_resp
= wpas_send_probe_resp
;
2860 p2p
.sd_request
= wpas_sd_request
;
2861 p2p
.sd_response
= wpas_sd_response
;
2862 p2p
.prov_disc_req
= wpas_prov_disc_req
;
2863 p2p
.prov_disc_resp
= wpas_prov_disc_resp
;
2864 p2p
.prov_disc_fail
= wpas_prov_disc_fail
;
2865 p2p
.invitation_process
= wpas_invitation_process
;
2866 p2p
.invitation_received
= wpas_invitation_received
;
2867 p2p
.invitation_result
= wpas_invitation_result
;
2868 p2p
.get_noa
= wpas_get_noa
;
2869 p2p
.go_connected
= wpas_go_connected
;
2871 os_memcpy(wpa_s
->global
->p2p_dev_addr
, wpa_s
->own_addr
, ETH_ALEN
);
2872 os_memcpy(p2p
.dev_addr
, wpa_s
->global
->p2p_dev_addr
, ETH_ALEN
);
2873 p2p
.dev_name
= wpa_s
->conf
->device_name
;
2874 p2p
.manufacturer
= wpa_s
->conf
->manufacturer
;
2875 p2p
.model_name
= wpa_s
->conf
->model_name
;
2876 p2p
.model_number
= wpa_s
->conf
->model_number
;
2877 p2p
.serial_number
= wpa_s
->conf
->serial_number
;
2879 os_memcpy(p2p
.uuid
, wpa_s
->wps
->uuid
, 16);
2880 p2p
.config_methods
= wpa_s
->wps
->config_methods
;
2883 if (wpa_s
->conf
->p2p_listen_reg_class
&&
2884 wpa_s
->conf
->p2p_listen_channel
) {
2885 p2p
.reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
2886 p2p
.channel
= wpa_s
->conf
->p2p_listen_channel
;
2890 * Pick one of the social channels randomly as the listen
2893 os_get_random((u8
*) &r
, sizeof(r
));
2894 p2p
.channel
= 1 + (r
% 3) * 5;
2896 wpa_printf(MSG_DEBUG
, "P2P: Own listen channel: %d", p2p
.channel
);
2898 if (wpa_s
->conf
->p2p_oper_reg_class
&&
2899 wpa_s
->conf
->p2p_oper_channel
) {
2900 p2p
.op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
2901 p2p
.op_channel
= wpa_s
->conf
->p2p_oper_channel
;
2902 p2p
.cfg_op_channel
= 1;
2903 wpa_printf(MSG_DEBUG
, "P2P: Configured operating channel: "
2904 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
2907 p2p
.op_reg_class
= 81;
2909 * Use random operation channel from (1, 6, 11) if no other
2910 * preference is indicated.
2912 os_get_random((u8
*) &r
, sizeof(r
));
2913 p2p
.op_channel
= 1 + (r
% 3) * 5;
2914 p2p
.cfg_op_channel
= 0;
2915 wpa_printf(MSG_DEBUG
, "P2P: Random operating channel: "
2916 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
2918 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
2919 os_memcpy(p2p
.country
, wpa_s
->conf
->country
, 2);
2920 p2p
.country
[2] = 0x04;
2922 os_memcpy(p2p
.country
, "XX\x04", 3);
2924 if (wpas_p2p_setup_channels(wpa_s
, &p2p
.channels
)) {
2925 wpa_printf(MSG_ERROR
, "P2P: Failed to configure supported "
2930 os_memcpy(p2p
.pri_dev_type
, wpa_s
->conf
->device_type
,
2933 p2p
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
2934 os_memcpy(p2p
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
2935 p2p
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
2937 p2p
.concurrent_operations
= !!(wpa_s
->drv_flags
&
2938 WPA_DRIVER_FLAGS_P2P_CONCURRENT
);
2940 p2p
.max_peers
= 100;
2942 if (wpa_s
->conf
->p2p_ssid_postfix
) {
2943 p2p
.ssid_postfix_len
=
2944 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
);
2945 if (p2p
.ssid_postfix_len
> sizeof(p2p
.ssid_postfix
))
2946 p2p
.ssid_postfix_len
= sizeof(p2p
.ssid_postfix
);
2947 os_memcpy(p2p
.ssid_postfix
, wpa_s
->conf
->p2p_ssid_postfix
,
2948 p2p
.ssid_postfix_len
);
2951 p2p
.p2p_intra_bss
= wpa_s
->conf
->p2p_intra_bss
;
2953 p2p
.max_listen
= wpa_s
->max_remain_on_chan
;
2955 global
->p2p
= p2p_init(&p2p
);
2956 if (global
->p2p
== NULL
)
2958 global
->p2p_init_wpa_s
= wpa_s
;
2960 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
2961 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
2963 p2p_add_wps_vendor_extension(
2964 global
->p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
2972 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2973 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2975 * This function deinitialize per-interface P2P data.
2977 void wpas_p2p_deinit(struct wpa_supplicant
*wpa_s
)
2979 if (wpa_s
->driver
&& wpa_s
->drv_priv
)
2980 wpa_drv_probe_req_report(wpa_s
, 0);
2982 if (wpa_s
->go_params
) {
2983 /* Clear any stored provisioning info */
2984 p2p_clear_provisioning_info(
2986 wpa_s
->go_params
->peer_device_addr
);
2989 os_free(wpa_s
->go_params
);
2990 wpa_s
->go_params
= NULL
;
2991 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
2992 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
2993 wpa_s
->p2p_long_listen
= 0;
2994 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
2995 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
2996 wpas_p2p_remove_pending_group_interface(wpa_s
);
2998 /* TODO: remove group interface from the driver if this wpa_s instance
2999 * is on top of a P2P group interface */
3004 * wpas_p2p_deinit_global - Deinitialize global P2P module
3005 * @global: Pointer to global data from wpa_supplicant_init()
3007 * This function deinitializes the global (per device) P2P module.
3009 void wpas_p2p_deinit_global(struct wpa_global
*global
)
3011 struct wpa_supplicant
*wpa_s
, *tmp
;
3013 wpa_s
= global
->ifaces
;
3015 wpas_p2p_service_flush(wpa_s
);
3017 if (global
->p2p
== NULL
)
3020 /* Remove remaining P2P group interfaces */
3021 while (wpa_s
&& wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
)
3022 wpa_s
= wpa_s
->next
;
3024 tmp
= global
->ifaces
;
3027 tmp
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)) {
3032 /* Disconnect from the P2P group and deinit the interface */
3033 wpas_p2p_disconnect(tmp
);
3037 * Deinit GO data on any possibly remaining interface (if main
3038 * interface is used as GO).
3040 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3041 if (wpa_s
->ap_iface
)
3042 wpas_p2p_group_deinit(wpa_s
);
3045 p2p_deinit(global
->p2p
);
3047 global
->p2p_init_wpa_s
= NULL
;
3051 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
)
3053 if (wpa_s
->conf
->p2p_no_group_iface
)
3054 return 0; /* separate interface disabled per configuration */
3055 if (wpa_s
->drv_flags
&
3056 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
|
3057 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P
))
3058 return 1; /* P2P group requires a new interface in every case
3060 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CONCURRENT
))
3061 return 0; /* driver does not support concurrent operations */
3062 if (wpa_s
->global
->ifaces
->next
)
3063 return 1; /* more that one interface already in use */
3064 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
)
3065 return 1; /* this interface is already in use */
3070 static int wpas_p2p_start_go_neg(struct wpa_supplicant
*wpa_s
,
3071 const u8
*peer_addr
,
3072 enum p2p_wps_method wps_method
,
3073 int go_intent
, const u8
*own_interface_addr
,
3074 unsigned int force_freq
, int persistent_group
,
3075 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
3077 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
3078 persistent_group
= 2;
3080 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
3081 return wpa_drv_p2p_connect(wpa_s
, peer_addr
, wps_method
,
3082 go_intent
, own_interface_addr
,
3083 force_freq
, persistent_group
);
3087 * Increase GO config timeout if HT40 is used since it takes some time
3088 * to scan channels for coex purposes before the BSS can be started.
3090 p2p_set_config_timeout(wpa_s
->global
->p2p
,
3091 wpa_s
->p2p_go_ht40
? 255 : 100, 20);
3093 return p2p_connect(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
3094 go_intent
, own_interface_addr
, force_freq
,
3095 persistent_group
, ssid
? ssid
->ssid
: NULL
,
3096 ssid
? ssid
->ssid_len
: 0,
3097 wpa_s
->p2p_pd_before_go_neg
, pref_freq
);
3101 static int wpas_p2p_auth_go_neg(struct wpa_supplicant
*wpa_s
,
3102 const u8
*peer_addr
,
3103 enum p2p_wps_method wps_method
,
3104 int go_intent
, const u8
*own_interface_addr
,
3105 unsigned int force_freq
, int persistent_group
,
3106 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
3108 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
3109 persistent_group
= 2;
3111 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
3114 return p2p_authorize(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
3115 go_intent
, own_interface_addr
, force_freq
,
3116 persistent_group
, ssid
? ssid
->ssid
: NULL
,
3117 ssid
? ssid
->ssid_len
: 0, pref_freq
);
3121 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant
*wpa_s
)
3123 wpa_s
->p2p_join_scan_count
++;
3124 wpa_printf(MSG_DEBUG
, "P2P: Join scan attempt %d",
3125 wpa_s
->p2p_join_scan_count
);
3126 if (wpa_s
->p2p_join_scan_count
> P2P_MAX_JOIN_SCAN_ATTEMPTS
) {
3127 wpa_printf(MSG_DEBUG
, "P2P: Failed to find GO " MACSTR
3128 " for join operationg - stop join attempt",
3129 MAC2STR(wpa_s
->pending_join_iface_addr
));
3130 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
3131 if (wpa_s
->p2p_auto_pd
) {
3132 wpa_s
->p2p_auto_pd
= 0;
3133 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
3134 " p2p_dev_addr=" MACSTR
" status=N/A",
3135 MAC2STR(wpa_s
->pending_join_dev_addr
));
3138 wpa_msg(wpa_s
->parent
, MSG_INFO
,
3139 P2P_EVENT_GROUP_FORMATION_FAILURE
);
3144 static int wpas_check_freq_conflict(struct wpa_supplicant
*wpa_s
, int freq
)
3146 struct wpa_supplicant
*iface
;
3150 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT
)
3153 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
3154 if (!wpas_p2p_create_iface(wpa_s
) && iface
== wpa_s
)
3156 if (iface
->current_ssid
== NULL
|| iface
->assoc_freq
== 0)
3158 if (iface
->current_ssid
->mode
== WPAS_MODE_AP
||
3159 iface
->current_ssid
->mode
== WPAS_MODE_P2P_GO
)
3160 shared_freq
= iface
->current_ssid
->frequency
;
3161 else if (wpa_drv_get_bssid(iface
, bssid
) == 0)
3162 shared_freq
= iface
->assoc_freq
;
3166 if (shared_freq
&& freq
!= shared_freq
) {
3167 wpa_printf(MSG_DEBUG
, "P2P: Frequency conflict - %s "
3168 "connected on %d MHz - new connection on "
3169 "%d MHz", iface
->ifname
, shared_freq
, freq
);
3174 shared_freq
= wpa_drv_shared_freq(wpa_s
);
3175 if (shared_freq
> 0 && shared_freq
!= freq
) {
3176 wpa_printf(MSG_DEBUG
, "P2P: Frequency conflict - shared "
3177 "virtual interface connected on %d MHz - new "
3178 "connection on %d MHz", shared_freq
, freq
);
3186 static int wpas_p2p_peer_go(struct wpa_supplicant
*wpa_s
,
3187 const u8
*peer_dev_addr
)
3189 struct wpa_bss
*bss
;
3192 bss
= wpa_bss_get_p2p_dev_addr(wpa_s
, peer_dev_addr
);
3195 if (bss
->last_update_idx
< wpa_s
->bss_update_idx
) {
3196 wpa_printf(MSG_DEBUG
, "P2P: Peer BSS entry not updated in the "
3201 updated
= os_time_before(&wpa_s
->p2p_auto_started
, &bss
->last_update
);
3202 wpa_printf(MSG_DEBUG
, "P2P: Current BSS entry for peer updated at "
3203 "%ld.%06ld (%supdated in last scan)",
3204 bss
->last_update
.sec
, bss
->last_update
.usec
,
3205 updated
? "": "not ");
3211 static void wpas_p2p_scan_res_join(struct wpa_supplicant
*wpa_s
,
3212 struct wpa_scan_results
*scan_res
)
3214 struct wpa_bss
*bss
;
3216 u8 iface_addr
[ETH_ALEN
];
3218 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
3220 if (wpa_s
->global
->p2p_disabled
)
3223 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS) for %sjoin",
3224 scan_res
? (int) scan_res
->num
: -1,
3225 wpa_s
->p2p_auto_join
? "auto_" : "");
3228 wpas_p2p_scan_res_handler(wpa_s
, scan_res
);
3230 if (wpa_s
->p2p_auto_pd
) {
3231 int join
= wpas_p2p_peer_go(wpa_s
,
3232 wpa_s
->pending_join_dev_addr
);
3234 wpa_s
->auto_pd_scan_retry
< P2P_AUTO_PD_SCAN_ATTEMPTS
) {
3235 wpa_s
->auto_pd_scan_retry
++;
3236 bss
= wpa_bss_get_bssid(wpa_s
,
3237 wpa_s
->pending_join_dev_addr
);
3240 wpa_printf(MSG_DEBUG
, "P2P: Scan retry %d for "
3241 "the peer " MACSTR
" at %d MHz",
3242 wpa_s
->auto_pd_scan_retry
,
3244 pending_join_dev_addr
),
3246 wpas_p2p_join_scan_req(wpa_s
, freq
);
3254 wpa_s
->p2p_auto_pd
= 0;
3255 wpa_s
->pending_pd_use
= join
? AUTO_PD_JOIN
: AUTO_PD_GO_NEG
;
3256 wpa_printf(MSG_DEBUG
, "P2P: Auto PD with " MACSTR
" join=%d",
3257 MAC2STR(wpa_s
->pending_join_dev_addr
), join
);
3258 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
3259 wpa_s
->pending_join_dev_addr
,
3260 wpa_s
->pending_pd_config_methods
, join
,
3261 0, wpa_s
->user_initiated_pd
) < 0) {
3262 wpa_s
->p2p_auto_pd
= 0;
3263 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
3264 " p2p_dev_addr=" MACSTR
" status=N/A",
3265 MAC2STR(wpa_s
->pending_join_dev_addr
));
3270 if (wpa_s
->p2p_auto_join
) {
3271 int join
= wpas_p2p_peer_go(wpa_s
,
3272 wpa_s
->pending_join_dev_addr
);
3274 wpa_printf(MSG_DEBUG
, "P2P: Peer was not found to be "
3275 "running a GO -> use GO Negotiation");
3276 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
,
3277 wpa_s
->p2p_pin
, wpa_s
->p2p_wps_method
,
3278 wpa_s
->p2p_persistent_group
, 0, 0, 0,
3279 wpa_s
->p2p_go_intent
,
3280 wpa_s
->p2p_connect_freq
,
3281 wpa_s
->p2p_persistent_id
,
3282 wpa_s
->p2p_pd_before_go_neg
,
3283 wpa_s
->p2p_go_ht40
);
3287 wpa_printf(MSG_DEBUG
, "P2P: Peer was found running GO%s -> "
3288 "try to join the group", join
? "" :
3291 wpa_s
->p2p_fallback_to_go_neg
= 1;
3294 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
3295 wpa_s
->pending_join_iface_addr
);
3297 p2p_get_interface_addr(wpa_s
->global
->p2p
,
3298 wpa_s
->pending_join_dev_addr
,
3300 os_memcmp(iface_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) != 0)
3302 wpa_printf(MSG_DEBUG
, "P2P: Overwrite pending interface "
3303 "address for join from " MACSTR
" to " MACSTR
3304 " based on newly discovered P2P peer entry",
3305 MAC2STR(wpa_s
->pending_join_iface_addr
),
3306 MAC2STR(iface_addr
));
3307 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
,
3310 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
3311 wpa_s
->pending_join_iface_addr
);
3314 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
3315 "from P2P peer table: %d MHz", freq
);
3317 bss
= wpa_bss_get_bssid(wpa_s
, wpa_s
->pending_join_iface_addr
);
3320 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
3321 "from BSS table: %d MHz", freq
);
3326 if (wpas_check_freq_conflict(wpa_s
, freq
) > 0) {
3327 wpa_msg(wpa_s
->parent
, MSG_INFO
,
3328 P2P_EVENT_GROUP_FORMATION_FAILURE
3329 "reason=FREQ_CONFLICT");
3333 wpa_printf(MSG_DEBUG
, "P2P: Send Provision Discovery Request "
3334 "prior to joining an existing group (GO " MACSTR
3336 MAC2STR(wpa_s
->pending_join_dev_addr
), freq
);
3337 wpa_s
->pending_pd_before_join
= 1;
3339 switch (wpa_s
->pending_join_wps_method
) {
3340 case WPS_PIN_DISPLAY
:
3341 method
= WPS_CONFIG_KEYPAD
;
3343 case WPS_PIN_KEYPAD
:
3344 method
= WPS_CONFIG_DISPLAY
;
3347 method
= WPS_CONFIG_PUSHBUTTON
;
3354 if ((p2p_get_provisioning_info(wpa_s
->global
->p2p
,
3355 wpa_s
->pending_join_dev_addr
) ==
3358 * We have already performed provision discovery for
3359 * joining the group. Proceed directly to join
3360 * operation without duplicated provision discovery. */
3361 wpa_printf(MSG_DEBUG
, "P2P: Provision discovery "
3362 "with " MACSTR
" already done - proceed to "
3364 MAC2STR(wpa_s
->pending_join_dev_addr
));
3365 wpa_s
->pending_pd_before_join
= 0;
3369 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
3370 wpa_s
->pending_join_dev_addr
, method
, 1,
3371 freq
, wpa_s
->user_initiated_pd
) < 0) {
3372 wpa_printf(MSG_DEBUG
, "P2P: Failed to send Provision "
3373 "Discovery Request before joining an "
3375 wpa_s
->pending_pd_before_join
= 0;
3381 wpa_printf(MSG_DEBUG
, "P2P: Failed to find BSS/GO - try again later");
3382 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
3383 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
3384 wpas_p2p_check_join_scan_limit(wpa_s
);
3388 /* Start join operation immediately */
3389 wpas_p2p_join_start(wpa_s
);
3393 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
)
3396 struct wpa_driver_scan_params params
;
3397 struct wpabuf
*wps_ie
, *ies
;
3399 int freqs
[2] = { 0, 0 };
3401 os_memset(¶ms
, 0, sizeof(params
));
3403 /* P2P Wildcard SSID */
3404 params
.num_ssids
= 1;
3405 params
.ssids
[0].ssid
= (u8
*) P2P_WILDCARD_SSID
;
3406 params
.ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
3408 wpa_s
->wps
->dev
.p2p
= 1;
3409 wps_ie
= wps_build_probe_req_ie(DEV_PW_DEFAULT
, &wpa_s
->wps
->dev
,
3410 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
, 0,
3412 if (wps_ie
== NULL
) {
3413 wpas_p2p_scan_res_join(wpa_s
, NULL
);
3417 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
3418 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
3420 wpabuf_free(wps_ie
);
3421 wpas_p2p_scan_res_join(wpa_s
, NULL
);
3424 wpabuf_put_buf(ies
, wps_ie
);
3425 wpabuf_free(wps_ie
);
3427 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
3429 params
.p2p_probe
= 1;
3430 params
.extra_ies
= wpabuf_head(ies
);
3431 params
.extra_ies_len
= wpabuf_len(ies
);
3434 params
.freqs
= freqs
;
3438 * Run a scan to update BSS table and start Provision Discovery once
3439 * the new scan results become available.
3441 ret
= wpa_drv_scan(wpa_s
, ¶ms
);
3443 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_join
;
3448 wpa_printf(MSG_DEBUG
, "P2P: Failed to start scan for join - "
3450 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
3451 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
3452 wpas_p2p_check_join_scan_limit(wpa_s
);
3457 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
)
3459 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
3460 wpas_p2p_join_scan_req(wpa_s
, 0);
3464 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
3465 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
3468 wpa_printf(MSG_DEBUG
, "P2P: Request to join existing group (iface "
3469 MACSTR
" dev " MACSTR
")%s",
3470 MAC2STR(iface_addr
), MAC2STR(dev_addr
),
3471 auto_join
? " (auto_join)" : "");
3473 wpa_s
->p2p_auto_pd
= 0;
3474 wpa_s
->p2p_auto_join
= !!auto_join
;
3475 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
, ETH_ALEN
);
3476 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
, ETH_ALEN
);
3477 wpa_s
->pending_join_wps_method
= wps_method
;
3479 /* Make sure we are not running find during connection establishment */
3480 wpas_p2p_stop_find(wpa_s
);
3482 wpa_s
->p2p_join_scan_count
= 0;
3483 wpas_p2p_join_scan(wpa_s
, NULL
);
3488 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
)
3490 struct wpa_supplicant
*group
;
3491 struct p2p_go_neg_results res
;
3492 struct wpa_bss
*bss
;
3494 group
= wpas_p2p_get_group_iface(wpa_s
, 0, 0);
3497 if (group
!= wpa_s
) {
3498 os_memcpy(group
->p2p_pin
, wpa_s
->p2p_pin
,
3499 sizeof(group
->p2p_pin
));
3500 group
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
3503 * Need to mark the current interface for p2p_group_formation
3504 * when a separate group interface is not used. This is needed
3505 * to allow p2p_cancel stop a pending p2p_connect-join.
3506 * wpas_p2p_init_group_interface() addresses this for the case
3507 * where a separate group interface is used.
3509 wpa_s
->global
->p2p_group_formation
= wpa_s
;
3512 group
->p2p_in_provisioning
= 1;
3513 group
->p2p_fallback_to_go_neg
= wpa_s
->p2p_fallback_to_go_neg
;
3515 os_memset(&res
, 0, sizeof(res
));
3516 os_memcpy(res
.peer_interface_addr
, wpa_s
->pending_join_iface_addr
,
3518 res
.wps_method
= wpa_s
->pending_join_wps_method
;
3519 bss
= wpa_bss_get_bssid(wpa_s
, wpa_s
->pending_join_iface_addr
);
3521 res
.freq
= bss
->freq
;
3522 res
.ssid_len
= bss
->ssid_len
;
3523 os_memcpy(res
.ssid
, bss
->ssid
, bss
->ssid_len
);
3526 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
3527 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel prior to "
3529 wpa_drv_cancel_remain_on_channel(wpa_s
);
3530 wpa_s
->off_channel_freq
= 0;
3531 wpa_s
->roc_waiting_drv_freq
= 0;
3533 wpas_start_wps_enrollee(group
, &res
);
3536 * Allow a longer timeout for join-a-running-group than normal 15
3537 * second group formation timeout since the GO may not have authorized
3538 * our connection yet.
3540 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
3541 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout
,
3549 * wpas_p2p_connect - Request P2P Group Formation to be started
3550 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3551 * @peer_addr: Address of the peer P2P Device
3552 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3553 * @persistent_group: Whether to create a persistent group
3554 * @auto_join: Whether to select join vs. GO Negotiation automatically
3555 * @join: Whether to join an existing group (as a client) instead of starting
3556 * Group Owner negotiation; @peer_addr is BSSID in that case
3557 * @auth: Whether to only authorize the connection instead of doing that and
3558 * initiating Group Owner negotiation
3559 * @go_intent: GO Intent or -1 to use default
3560 * @freq: Frequency for the group or 0 for auto-selection
3561 * @persistent_id: Persistent group credentials to use for forcing GO
3562 * parameters or -1 to generate new values (SSID/passphrase)
3563 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3564 * interoperability workaround when initiating group formation
3565 * @ht40: Start GO with 40 MHz channel width
3566 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3567 * failure, -2 on failure due to channel not currently available,
3568 * -3 if forced channel is not supported
3570 int wpas_p2p_connect(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
3571 const char *pin
, enum p2p_wps_method wps_method
,
3572 int persistent_group
, int auto_join
, int join
, int auth
,
3573 int go_intent
, int freq
, int persistent_id
, int pd
,
3576 int force_freq
= 0, pref_freq
= 0, oper_freq
= 0;
3579 enum wpa_driver_if_type iftype
;
3581 struct wpa_ssid
*ssid
= NULL
;
3583 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
3586 if (persistent_id
>= 0) {
3587 ssid
= wpa_config_get_network(wpa_s
->conf
, persistent_id
);
3588 if (ssid
== NULL
|| ssid
->disabled
!= 2 ||
3589 ssid
->mode
!= WPAS_MODE_P2P_GO
)
3594 go_intent
= wpa_s
->conf
->p2p_go_intent
;
3597 wpa_s
->p2p_long_listen
= 0;
3599 wpa_s
->p2p_wps_method
= wps_method
;
3600 wpa_s
->p2p_persistent_group
= !!persistent_group
;
3601 wpa_s
->p2p_persistent_id
= persistent_id
;
3602 wpa_s
->p2p_go_intent
= go_intent
;
3603 wpa_s
->p2p_connect_freq
= freq
;
3604 wpa_s
->p2p_fallback_to_go_neg
= 0;
3605 wpa_s
->p2p_pd_before_go_neg
= !!pd
;
3606 wpa_s
->p2p_go_ht40
= !!ht40
;
3609 os_strlcpy(wpa_s
->p2p_pin
, pin
, sizeof(wpa_s
->p2p_pin
));
3610 else if (wps_method
== WPS_PIN_DISPLAY
) {
3611 ret
= wps_generate_pin();
3612 os_snprintf(wpa_s
->p2p_pin
, sizeof(wpa_s
->p2p_pin
), "%08d",
3614 wpa_printf(MSG_DEBUG
, "P2P: Randomly generated PIN: %s",
3617 wpa_s
->p2p_pin
[0] = '\0';
3619 if (join
|| auto_join
) {
3620 u8 iface_addr
[ETH_ALEN
], dev_addr
[ETH_ALEN
];
3622 wpa_printf(MSG_DEBUG
, "P2P: Authorize invitation to "
3623 "connect a running group from " MACSTR
,
3624 MAC2STR(peer_addr
));
3625 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
3628 os_memcpy(dev_addr
, peer_addr
, ETH_ALEN
);
3629 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, peer_addr
,
3631 os_memcpy(iface_addr
, peer_addr
, ETH_ALEN
);
3632 p2p_get_dev_addr(wpa_s
->global
->p2p
, peer_addr
,
3636 os_get_time(&wpa_s
->p2p_auto_started
);
3637 wpa_printf(MSG_DEBUG
, "P2P: Auto join started at "
3639 wpa_s
->p2p_auto_started
.sec
,
3640 wpa_s
->p2p_auto_started
.usec
);
3642 wpa_s
->user_initiated_pd
= 1;
3643 if (wpas_p2p_join(wpa_s
, iface_addr
, dev_addr
, wps_method
,
3649 if (wpa_s
->current_ssid
&& wpa_drv_get_bssid(wpa_s
, bssid
) == 0 &&
3651 oper_freq
= wpa_s
->assoc_freq
;
3653 oper_freq
= wpa_drv_shared_freq(wpa_s
);
3659 if (!p2p_supported_freq(wpa_s
->global
->p2p
, freq
)) {
3660 wpa_printf(MSG_DEBUG
, "P2P: The forced channel "
3661 "(%u MHz) is not supported for P2P uses",
3666 if (oper_freq
> 0 && freq
!= oper_freq
&&
3667 !(wpa_s
->drv_flags
&
3668 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT
)) {
3669 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group "
3670 "on %u MHz while connected on another "
3671 "channel (%u MHz)", freq
, oper_freq
);
3674 wpa_printf(MSG_DEBUG
, "P2P: Trying to force us to use the "
3675 "requested channel (%u MHz)", freq
);
3677 } else if (oper_freq
> 0 &&
3678 !p2p_supported_freq(wpa_s
->global
->p2p
, oper_freq
)) {
3679 if (!(wpa_s
->drv_flags
&
3680 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT
)) {
3681 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group "
3682 "while connected on non-P2P supported "
3683 "channel (%u MHz)", oper_freq
);
3686 wpa_printf(MSG_DEBUG
, "P2P: Current operating channel "
3687 "(%u MHz) not available for P2P - try to use "
3688 "another channel", oper_freq
);
3690 } else if (oper_freq
> 0 &&
3692 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT
)) {
3693 wpa_printf(MSG_DEBUG
, "P2P: Trying to prefer the channel we "
3694 "are already using (%u MHz) on another interface",
3696 pref_freq
= oper_freq
;
3697 } else if (oper_freq
> 0) {
3698 wpa_printf(MSG_DEBUG
, "P2P: Trying to force us to use the "
3699 "channel we are already using (%u MHz) on another "
3700 "interface", oper_freq
);
3701 force_freq
= oper_freq
;
3704 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
3706 if (wpa_s
->create_p2p_iface
) {
3707 /* Prepare to add a new interface for the group */
3708 iftype
= WPA_IF_P2P_GROUP
;
3709 if (go_intent
== 15)
3710 iftype
= WPA_IF_P2P_GO
;
3711 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
3712 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
3713 "interface for the group");
3717 if_addr
= wpa_s
->pending_interface_addr
;
3719 if_addr
= wpa_s
->own_addr
;
3722 if (wpas_p2p_auth_go_neg(wpa_s
, peer_addr
, wps_method
,
3724 force_freq
, persistent_group
, ssid
,
3730 if (wpas_p2p_start_go_neg(wpa_s
, peer_addr
, wps_method
,
3731 go_intent
, if_addr
, force_freq
,
3732 persistent_group
, ssid
, pref_freq
) < 0) {
3733 if (wpa_s
->create_p2p_iface
)
3734 wpas_p2p_remove_pending_group_interface(wpa_s
);
3742 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3743 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3744 * @freq: Frequency of the channel in MHz
3745 * @duration: Duration of the stay on the channel in milliseconds
3747 * This callback is called when the driver indicates that it has started the
3748 * requested remain-on-channel duration.
3750 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
3751 unsigned int freq
, unsigned int duration
)
3753 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
3755 if (wpa_s
->off_channel_freq
== wpa_s
->pending_listen_freq
) {
3756 p2p_listen_cb(wpa_s
->global
->p2p
, wpa_s
->pending_listen_freq
,
3757 wpa_s
->pending_listen_duration
);
3758 wpa_s
->pending_listen_freq
= 0;
3763 static int wpas_p2p_listen_start(struct wpa_supplicant
*wpa_s
,
3764 unsigned int timeout
)
3766 /* Limit maximum Listen state time based on driver limitation. */
3767 if (timeout
> wpa_s
->max_remain_on_chan
)
3768 timeout
= wpa_s
->max_remain_on_chan
;
3770 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
3771 return wpa_drv_p2p_listen(wpa_s
, timeout
);
3773 return p2p_listen(wpa_s
->global
->p2p
, timeout
);
3778 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3779 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3780 * @freq: Frequency of the channel in MHz
3782 * This callback is called when the driver indicates that a remain-on-channel
3783 * operation has been completed, i.e., the duration on the requested channel
3786 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
3789 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel callback "
3790 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3791 wpa_s
->p2p_long_listen
, offchannel_pending_action_tx(wpa_s
));
3792 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
3794 if (p2p_listen_end(wpa_s
->global
->p2p
, freq
) > 0)
3795 return; /* P2P module started a new operation */
3796 if (offchannel_pending_action_tx(wpa_s
))
3798 if (wpa_s
->p2p_long_listen
> 0)
3799 wpa_s
->p2p_long_listen
-= wpa_s
->max_remain_on_chan
;
3800 if (wpa_s
->p2p_long_listen
> 0) {
3801 wpa_printf(MSG_DEBUG
, "P2P: Continuing long Listen state");
3802 wpas_p2p_listen_start(wpa_s
, wpa_s
->p2p_long_listen
);
3808 * wpas_p2p_group_remove - Remove a P2P group
3809 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3810 * @ifname: Network interface name of the group interface or "*" to remove all
3812 * Returns: 0 on success, -1 on failure
3814 * This function is used to remove a P2P group. This can be used to disconnect
3815 * from a group in which the local end is a P2P Client or to end a P2P Group in
3816 * case the local end is the Group Owner. If a virtual network interface was
3817 * created for this group, that interface will be removed. Otherwise, only the
3818 * configured P2P group network will be removed from the interface.
3820 int wpas_p2p_group_remove(struct wpa_supplicant
*wpa_s
, const char *ifname
)
3822 struct wpa_global
*global
= wpa_s
->global
;
3824 if (os_strcmp(ifname
, "*") == 0) {
3825 struct wpa_supplicant
*prev
;
3826 wpa_s
= global
->ifaces
;
3829 wpa_s
= wpa_s
->next
;
3830 wpas_p2p_disconnect(prev
);
3835 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3836 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
3840 return wpas_p2p_disconnect(wpa_s
);
3844 static int wpas_p2p_init_go_params(struct wpa_supplicant
*wpa_s
,
3845 struct p2p_go_neg_results
*params
,
3851 os_memset(params
, 0, sizeof(*params
));
3852 params
->role_go
= 1;
3853 params
->ht40
= ht40
;
3855 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on forced "
3856 "frequency %d MHz", freq
);
3857 params
->freq
= freq
;
3858 } else if (wpa_s
->conf
->p2p_oper_reg_class
== 81 &&
3859 wpa_s
->conf
->p2p_oper_channel
>= 1 &&
3860 wpa_s
->conf
->p2p_oper_channel
<= 11) {
3861 params
->freq
= 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
;
3862 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
3863 "frequency %d MHz", params
->freq
);
3864 } else if (wpa_s
->conf
->p2p_oper_reg_class
== 115 ||
3865 wpa_s
->conf
->p2p_oper_reg_class
== 116 ||
3866 wpa_s
->conf
->p2p_oper_reg_class
== 117 ||
3867 wpa_s
->conf
->p2p_oper_reg_class
== 124 ||
3868 wpa_s
->conf
->p2p_oper_reg_class
== 126 ||
3869 wpa_s
->conf
->p2p_oper_reg_class
== 127) {
3870 params
->freq
= 5000 + 5 * wpa_s
->conf
->p2p_oper_channel
;
3871 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
3872 "frequency %d MHz", params
->freq
);
3873 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
3874 wpa_s
->best_overall_freq
> 0 &&
3875 p2p_supported_freq(wpa_s
->global
->p2p
,
3876 wpa_s
->best_overall_freq
)) {
3877 params
->freq
= wpa_s
->best_overall_freq
;
3878 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best overall "
3879 "channel %d MHz", params
->freq
);
3880 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
3881 wpa_s
->best_24_freq
> 0 &&
3882 p2p_supported_freq(wpa_s
->global
->p2p
,
3883 wpa_s
->best_24_freq
)) {
3884 params
->freq
= wpa_s
->best_24_freq
;
3885 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 2.4 GHz "
3886 "channel %d MHz", params
->freq
);
3887 } else if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
3888 wpa_s
->best_5_freq
> 0 &&
3889 p2p_supported_freq(wpa_s
->global
->p2p
,
3890 wpa_s
->best_5_freq
)) {
3891 params
->freq
= wpa_s
->best_5_freq
;
3892 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 5 GHz "
3893 "channel %d MHz", params
->freq
);
3896 for (chan
= 0; chan
< 11; chan
++) {
3897 params
->freq
= 2412 + chan
* 5;
3898 if (!wpas_p2p_disallowed_freq(wpa_s
->global
,
3903 wpa_printf(MSG_DEBUG
, "P2P: No 2.4 GHz channel "
3907 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz (no preference "
3908 "known)", params
->freq
);
3911 if (wpa_s
->current_ssid
&& wpa_drv_get_bssid(wpa_s
, bssid
) == 0 &&
3912 wpa_s
->assoc_freq
&& !freq
) {
3913 wpa_printf(MSG_DEBUG
, "P2P: Force GO on the channel we are "
3915 params
->freq
= wpa_s
->assoc_freq
;
3918 res
= wpa_drv_shared_freq(wpa_s
);
3919 if (res
> 0 && !freq
) {
3920 wpa_printf(MSG_DEBUG
, "P2P: Force GO on the channel we are "
3921 "already using on a shared interface");
3923 } else if (res
> 0 && freq
!= res
&&
3924 !(wpa_s
->drv_flags
&
3925 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT
)) {
3926 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group on %u MHz "
3927 "while connected on another channel (%u MHz)",
3936 static struct wpa_supplicant
*
3937 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
3940 struct wpa_supplicant
*group_wpa_s
;
3942 if (!wpas_p2p_create_iface(wpa_s
)) {
3943 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use same interface for group "
3948 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
3949 WPA_IF_P2P_CLIENT
) < 0) {
3950 wpa_msg(wpa_s
, MSG_ERROR
, "P2P: Failed to add group interface");
3953 group_wpa_s
= wpas_p2p_init_group_interface(wpa_s
, go
);
3954 if (group_wpa_s
== NULL
) {
3955 wpa_msg(wpa_s
, MSG_ERROR
, "P2P: Failed to initialize group "
3957 wpas_p2p_remove_pending_group_interface(wpa_s
);
3961 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use separate group interface %s",
3962 group_wpa_s
->ifname
);
3968 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3969 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3970 * @persistent_group: Whether to create a persistent group
3971 * @freq: Frequency for the group or 0 to indicate no hardcoding
3972 * Returns: 0 on success, -1 on failure
3974 * This function creates a new P2P group with the local end as the Group Owner,
3975 * i.e., without using Group Owner Negotiation.
3977 int wpas_p2p_group_add(struct wpa_supplicant
*wpa_s
, int persistent_group
,
3980 struct p2p_go_neg_results params
;
3983 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
3986 /* Make sure we are not running find during connection establishment */
3987 wpa_printf(MSG_DEBUG
, "P2P: Stop any on-going P2P FIND");
3988 wpas_p2p_stop_find_oper(wpa_s
);
3991 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 2.4 GHz "
3993 if (wpa_s
->best_24_freq
> 0 &&
3994 p2p_supported_freq(wpa_s
->global
->p2p
,
3995 wpa_s
->best_24_freq
)) {
3996 freq
= wpa_s
->best_24_freq
;
3997 wpa_printf(MSG_DEBUG
, "P2P: Use best 2.4 GHz band "
3998 "channel: %d MHz", freq
);
4000 os_get_random((u8
*) &r
, sizeof(r
));
4001 freq
= 2412 + (r
% 3) * 25;
4002 wpa_printf(MSG_DEBUG
, "P2P: Use random 2.4 GHz band "
4003 "channel: %d MHz", freq
);
4008 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 5 GHz "
4010 if (wpa_s
->best_5_freq
> 0 &&
4011 p2p_supported_freq(wpa_s
->global
->p2p
,
4012 wpa_s
->best_5_freq
)) {
4013 freq
= wpa_s
->best_5_freq
;
4014 wpa_printf(MSG_DEBUG
, "P2P: Use best 5 GHz band "
4015 "channel: %d MHz", freq
);
4017 os_get_random((u8
*) &r
, sizeof(r
));
4018 freq
= 5180 + (r
% 4) * 20;
4019 if (!p2p_supported_freq(wpa_s
->global
->p2p
, freq
)) {
4020 wpa_printf(MSG_DEBUG
, "P2P: Could not select "
4021 "5 GHz channel for P2P group");
4024 wpa_printf(MSG_DEBUG
, "P2P: Use random 5 GHz band "
4025 "channel: %d MHz", freq
);
4029 if (freq
> 0 && !p2p_supported_freq(wpa_s
->global
->p2p
, freq
)) {
4030 wpa_printf(MSG_DEBUG
, "P2P: The forced channel for GO "
4031 "(%u MHz) is not supported for P2P uses",
4036 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
))
4039 !p2p_supported_freq(wpa_s
->global
->p2p
, params
.freq
)) {
4040 wpa_printf(MSG_DEBUG
, "P2P: The selected channel for GO "
4041 "(%u MHz) is not supported for P2P uses",
4045 p2p_go_params(wpa_s
->global
->p2p
, ¶ms
);
4046 params
.persistent_group
= persistent_group
;
4048 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, 0, 1);
4051 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
4057 static int wpas_start_p2p_client(struct wpa_supplicant
*wpa_s
,
4058 struct wpa_ssid
*params
, int addr_allocated
)
4060 struct wpa_ssid
*ssid
;
4062 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 0);
4066 wpa_supplicant_ap_deinit(wpa_s
);
4068 ssid
= wpa_config_add_network(wpa_s
->conf
);
4071 wpa_config_set_network_defaults(ssid
);
4072 ssid
->temporary
= 1;
4073 ssid
->proto
= WPA_PROTO_RSN
;
4074 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
4075 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
4076 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
4077 ssid
->ssid
= os_malloc(params
->ssid_len
);
4078 if (ssid
->ssid
== NULL
) {
4079 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
4082 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
4083 ssid
->ssid_len
= params
->ssid_len
;
4084 ssid
->p2p_group
= 1;
4085 ssid
->export_keys
= 1;
4086 if (params
->psk_set
) {
4087 os_memcpy(ssid
->psk
, params
->psk
, 32);
4090 if (params
->passphrase
)
4091 ssid
->passphrase
= os_strdup(params
->passphrase
);
4093 wpa_supplicant_select_network(wpa_s
, ssid
);
4095 wpa_s
->show_group_started
= 1;
4101 int wpas_p2p_group_add_persistent(struct wpa_supplicant
*wpa_s
,
4102 struct wpa_ssid
*ssid
, int addr_allocated
,
4105 struct p2p_go_neg_results params
;
4108 if (ssid
->disabled
!= 2 || ssid
->ssid
== NULL
)
4111 if (wpas_get_p2p_group(wpa_s
, ssid
->ssid
, ssid
->ssid_len
, &go
) &&
4112 go
== (ssid
->mode
== WPAS_MODE_P2P_GO
)) {
4113 wpa_printf(MSG_DEBUG
, "P2P: Requested persistent group is "
4118 /* Make sure we are not running find during connection establishment */
4119 wpas_p2p_stop_find_oper(wpa_s
);
4121 wpa_s
->p2p_fallback_to_go_neg
= 0;
4123 if (ssid
->mode
== WPAS_MODE_INFRA
)
4124 return wpas_start_p2p_client(wpa_s
, ssid
, addr_allocated
);
4126 if (ssid
->mode
!= WPAS_MODE_P2P_GO
)
4129 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
))
4133 params
.psk_set
= ssid
->psk_set
;
4135 os_memcpy(params
.psk
, ssid
->psk
, sizeof(params
.psk
));
4136 if (ssid
->passphrase
) {
4137 if (os_strlen(ssid
->passphrase
) >= sizeof(params
.passphrase
)) {
4138 wpa_printf(MSG_ERROR
, "P2P: Invalid passphrase in "
4139 "persistent group");
4142 os_strlcpy(params
.passphrase
, ssid
->passphrase
,
4143 sizeof(params
.passphrase
));
4145 os_memcpy(params
.ssid
, ssid
->ssid
, ssid
->ssid_len
);
4146 params
.ssid_len
= ssid
->ssid_len
;
4147 params
.persistent_group
= 1;
4149 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 1);
4153 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
4159 static void wpas_p2p_ie_update(void *ctx
, struct wpabuf
*beacon_ies
,
4160 struct wpabuf
*proberesp_ies
)
4162 struct wpa_supplicant
*wpa_s
= ctx
;
4163 if (wpa_s
->ap_iface
) {
4164 struct hostapd_data
*hapd
= wpa_s
->ap_iface
->bss
[0];
4165 if (!(hapd
->conf
->p2p
& P2P_GROUP_OWNER
)) {
4166 wpabuf_free(beacon_ies
);
4167 wpabuf_free(proberesp_ies
);
4171 wpabuf_free(hapd
->p2p_beacon_ie
);
4172 hapd
->p2p_beacon_ie
= beacon_ies
;
4174 wpabuf_free(hapd
->p2p_probe_resp_ie
);
4175 hapd
->p2p_probe_resp_ie
= proberesp_ies
;
4177 wpabuf_free(beacon_ies
);
4178 wpabuf_free(proberesp_ies
);
4180 wpa_supplicant_ap_update_beacon(wpa_s
);
4184 static void wpas_p2p_idle_update(void *ctx
, int idle
)
4186 struct wpa_supplicant
*wpa_s
= ctx
;
4187 if (!wpa_s
->ap_iface
)
4189 wpa_printf(MSG_DEBUG
, "P2P: GO - group %sidle", idle
? "" : "not ");
4191 wpas_p2p_set_group_idle_timeout(wpa_s
);
4193 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
4197 struct p2p_group
* wpas_p2p_group_init(struct wpa_supplicant
*wpa_s
,
4198 struct wpa_ssid
*ssid
)
4200 struct p2p_group
*group
;
4201 struct p2p_group_config
*cfg
;
4203 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4205 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4208 cfg
= os_zalloc(sizeof(*cfg
));
4212 if (ssid
->p2p_persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4213 cfg
->persistent_group
= 2;
4214 else if (ssid
->p2p_persistent_group
)
4215 cfg
->persistent_group
= 1;
4216 os_memcpy(cfg
->interface_addr
, wpa_s
->own_addr
, ETH_ALEN
);
4217 if (wpa_s
->max_stations
&&
4218 wpa_s
->max_stations
< wpa_s
->conf
->max_num_sta
)
4219 cfg
->max_clients
= wpa_s
->max_stations
;
4221 cfg
->max_clients
= wpa_s
->conf
->max_num_sta
;
4222 os_memcpy(cfg
->ssid
, ssid
->ssid
, ssid
->ssid_len
);
4223 cfg
->ssid_len
= ssid
->ssid_len
;
4224 cfg
->cb_ctx
= wpa_s
;
4225 cfg
->ie_update
= wpas_p2p_ie_update
;
4226 cfg
->idle_update
= wpas_p2p_idle_update
;
4228 group
= p2p_group_init(wpa_s
->global
->p2p
, cfg
);
4231 if (ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
4232 p2p_group_notif_formation_done(group
);
4233 wpa_s
->p2p_group
= group
;
4238 void wpas_p2p_wps_success(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
4241 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
4243 if (!wpa_s
->p2p_in_provisioning
) {
4244 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS success event - P2P "
4245 "provisioning not in progress");
4249 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
4250 u8 go_dev_addr
[ETH_ALEN
];
4251 os_memcpy(go_dev_addr
, wpa_s
->bssid
, ETH_ALEN
);
4252 wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
4254 /* Clear any stored provisioning info */
4255 p2p_clear_provisioning_info(wpa_s
->global
->p2p
, go_dev_addr
);
4258 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
4260 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
4262 * Use a separate timeout for initial data connection to
4263 * complete to allow the group to be removed automatically if
4264 * something goes wrong in this step before the P2P group idle
4265 * timeout mechanism is taken into use.
4267 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
4268 wpas_p2p_group_formation_timeout
,
4269 wpa_s
->parent
, NULL
);
4271 if (wpa_s
->global
->p2p
)
4272 p2p_wps_success_cb(wpa_s
->global
->p2p
, peer_addr
);
4273 else if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4274 wpa_drv_wps_success_cb(wpa_s
, peer_addr
);
4275 wpas_group_formation_completed(wpa_s
, 1);
4279 void wpas_p2p_wps_failed(struct wpa_supplicant
*wpa_s
,
4280 struct wps_event_fail
*fail
)
4282 if (!wpa_s
->p2p_in_provisioning
) {
4283 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS fail event - P2P "
4284 "provisioning not in progress");
4288 if (wpa_s
->go_params
) {
4289 p2p_clear_provisioning_info(
4291 wpa_s
->go_params
->peer_device_addr
);
4294 wpas_notify_p2p_wps_failed(wpa_s
, fail
);
4298 int wpas_p2p_prov_disc(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
4299 const char *config_method
,
4300 enum wpas_p2p_prov_disc_use use
)
4304 wpa_s
->p2p_fallback_to_go_neg
= 0;
4305 wpa_s
->pending_pd_use
= NORMAL_PD
;
4306 if (os_strncmp(config_method
, "display", 7) == 0)
4307 config_methods
= WPS_CONFIG_DISPLAY
;
4308 else if (os_strncmp(config_method
, "keypad", 6) == 0)
4309 config_methods
= WPS_CONFIG_KEYPAD
;
4310 else if (os_strncmp(config_method
, "pbc", 3) == 0 ||
4311 os_strncmp(config_method
, "pushbutton", 10) == 0)
4312 config_methods
= WPS_CONFIG_PUSHBUTTON
;
4314 wpa_printf(MSG_DEBUG
, "P2P: Unknown config method");
4318 if (use
== WPAS_P2P_PD_AUTO
) {
4319 os_memcpy(wpa_s
->pending_join_dev_addr
, peer_addr
, ETH_ALEN
);
4320 wpa_s
->pending_pd_config_methods
= config_methods
;
4321 wpa_s
->p2p_auto_pd
= 1;
4322 wpa_s
->p2p_auto_join
= 0;
4323 wpa_s
->pending_pd_before_join
= 0;
4324 wpa_s
->auto_pd_scan_retry
= 0;
4325 wpas_p2p_stop_find(wpa_s
);
4326 wpa_s
->p2p_join_scan_count
= 0;
4327 os_get_time(&wpa_s
->p2p_auto_started
);
4328 wpa_printf(MSG_DEBUG
, "P2P: Auto PD started at %ld.%06ld",
4329 wpa_s
->p2p_auto_started
.sec
,
4330 wpa_s
->p2p_auto_started
.usec
);
4331 wpas_p2p_join_scan(wpa_s
, NULL
);
4335 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
4336 return wpa_drv_p2p_prov_disc_req(wpa_s
, peer_addr
,
4338 use
== WPAS_P2P_PD_FOR_JOIN
);
4341 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
4344 return p2p_prov_disc_req(wpa_s
->global
->p2p
, peer_addr
,
4345 config_methods
, use
== WPAS_P2P_PD_FOR_JOIN
,
4350 int wpas_p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
,
4353 return p2p_scan_result_text(ies
, ies_len
, buf
, end
);
4357 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant
*wpa_s
)
4359 if (!offchannel_pending_action_tx(wpa_s
))
4362 wpa_printf(MSG_DEBUG
, "P2P: Drop pending Action TX due to new "
4363 "operation request");
4364 offchannel_clear_pending_action_tx(wpa_s
);
4368 int wpas_p2p_find(struct wpa_supplicant
*wpa_s
, unsigned int timeout
,
4369 enum p2p_discovery_type type
,
4370 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
4371 const u8
*dev_id
, unsigned int search_delay
)
4373 wpas_p2p_clear_pending_action_tx(wpa_s
);
4374 wpa_s
->p2p_long_listen
= 0;
4376 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4377 return wpa_drv_p2p_find(wpa_s
, timeout
, type
);
4379 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
||
4380 wpa_s
->p2p_in_provisioning
)
4383 wpa_supplicant_cancel_sched_scan(wpa_s
);
4385 return p2p_find(wpa_s
->global
->p2p
, timeout
, type
,
4386 num_req_dev_types
, req_dev_types
, dev_id
,
4391 static int wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
)
4393 wpas_p2p_clear_pending_action_tx(wpa_s
);
4394 wpa_s
->p2p_long_listen
= 0;
4395 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
4396 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4397 wpa_s
->global
->p2p_cb_on_scan_complete
= 0;
4399 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
) {
4400 wpa_drv_p2p_stop_find(wpa_s
);
4404 if (wpa_s
->global
->p2p
)
4405 p2p_stop_find(wpa_s
->global
->p2p
);
4411 void wpas_p2p_stop_find(struct wpa_supplicant
*wpa_s
)
4413 if (wpas_p2p_stop_find_oper(wpa_s
) > 0)
4415 wpas_p2p_remove_pending_group_interface(wpa_s
);
4419 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
4421 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
4422 wpa_s
->p2p_long_listen
= 0;
4426 int wpas_p2p_listen(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
4430 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4433 wpa_supplicant_cancel_sched_scan(wpa_s
);
4434 wpas_p2p_clear_pending_action_tx(wpa_s
);
4438 * This is a request for unlimited Listen state. However, at
4439 * least for now, this is mapped to a Listen state for one
4444 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
4445 wpa_s
->p2p_long_listen
= 0;
4448 * Stop previous find/listen operation to avoid trying to request a new
4449 * remain-on-channel operation while the driver is still running the
4452 if (wpa_s
->global
->p2p
)
4453 p2p_stop_find(wpa_s
->global
->p2p
);
4455 res
= wpas_p2p_listen_start(wpa_s
, timeout
* 1000);
4456 if (res
== 0 && timeout
* 1000 > wpa_s
->max_remain_on_chan
) {
4457 wpa_s
->p2p_long_listen
= timeout
* 1000;
4458 eloop_register_timeout(timeout
, 0,
4459 wpas_p2p_long_listen_timeout
,
4467 int wpas_p2p_assoc_req_ie(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
,
4468 u8
*buf
, size_t len
, int p2p_group
)
4470 struct wpabuf
*p2p_ie
;
4473 if (wpa_s
->global
->p2p_disabled
)
4475 if (wpa_s
->global
->p2p
== NULL
)
4480 p2p_ie
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
4481 ret
= p2p_assoc_req_ie(wpa_s
->global
->p2p
, bss
->bssid
, buf
, len
,
4483 wpabuf_free(p2p_ie
);
4489 int wpas_p2p_probe_req_rx(struct wpa_supplicant
*wpa_s
, const u8
*addr
,
4490 const u8
*dst
, const u8
*bssid
,
4491 const u8
*ie
, size_t ie_len
, int ssi_signal
)
4493 if (wpa_s
->global
->p2p_disabled
)
4495 if (wpa_s
->global
->p2p
== NULL
)
4498 switch (p2p_probe_req_rx(wpa_s
->global
->p2p
, addr
, dst
, bssid
,
4500 case P2P_PREQ_NOT_P2P
:
4501 wpas_notify_preq(wpa_s
, addr
, dst
, bssid
, ie
, ie_len
,
4504 case P2P_PREQ_MALFORMED
:
4505 case P2P_PREQ_NOT_LISTEN
:
4506 case P2P_PREQ_NOT_PROCESSED
:
4507 default: /* make gcc happy */
4509 case P2P_PREQ_PROCESSED
:
4515 void wpas_p2p_rx_action(struct wpa_supplicant
*wpa_s
, const u8
*da
,
4516 const u8
*sa
, const u8
*bssid
,
4517 u8 category
, const u8
*data
, size_t len
, int freq
)
4519 if (wpa_s
->global
->p2p_disabled
)
4521 if (wpa_s
->global
->p2p
== NULL
)
4524 p2p_rx_action(wpa_s
->global
->p2p
, da
, sa
, bssid
, category
, data
, len
,
4529 void wpas_p2p_scan_ie(struct wpa_supplicant
*wpa_s
, struct wpabuf
*ies
)
4531 if (wpa_s
->global
->p2p_disabled
)
4533 if (wpa_s
->global
->p2p
== NULL
)
4536 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
4540 void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
)
4542 p2p_group_deinit(wpa_s
->p2p_group
);
4543 wpa_s
->p2p_group
= NULL
;
4545 wpa_s
->ap_configured_cb
= NULL
;
4546 wpa_s
->ap_configured_cb_ctx
= NULL
;
4547 wpa_s
->ap_configured_cb_data
= NULL
;
4548 wpa_s
->connect_without_scan
= NULL
;
4552 int wpas_p2p_reject(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
4554 wpa_s
->p2p_long_listen
= 0;
4556 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4557 return wpa_drv_p2p_reject(wpa_s
, addr
);
4559 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4562 return p2p_reject(wpa_s
->global
->p2p
, addr
);
4566 /* Invite to reinvoke a persistent group */
4567 int wpas_p2p_invite(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
4568 struct wpa_ssid
*ssid
, const u8
*go_dev_addr
, int freq
,
4571 enum p2p_invite_role role
;
4574 wpa_s
->p2p_persistent_go_freq
= freq
;
4575 wpa_s
->p2p_go_ht40
= !!ht40
;
4576 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
4577 role
= P2P_INVITE_ROLE_GO
;
4578 if (peer_addr
== NULL
) {
4579 wpa_printf(MSG_DEBUG
, "P2P: Missing peer "
4580 "address in invitation command");
4583 if (wpas_p2p_create_iface(wpa_s
)) {
4584 if (wpas_p2p_add_group_interface(wpa_s
,
4585 WPA_IF_P2P_GO
) < 0) {
4586 wpa_printf(MSG_ERROR
, "P2P: Failed to "
4587 "allocate a new interface for the "
4591 bssid
= wpa_s
->pending_interface_addr
;
4593 bssid
= wpa_s
->own_addr
;
4595 role
= P2P_INVITE_ROLE_CLIENT
;
4596 peer_addr
= ssid
->bssid
;
4598 wpa_s
->pending_invite_ssid_id
= ssid
->id
;
4600 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4601 return wpa_drv_p2p_invite(wpa_s
, peer_addr
, role
, bssid
,
4602 ssid
->ssid
, ssid
->ssid_len
,
4605 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4608 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
4609 ssid
->ssid
, ssid
->ssid_len
, freq
, go_dev_addr
, 1);
4613 /* Invite to join an active group */
4614 int wpas_p2p_invite_group(struct wpa_supplicant
*wpa_s
, const char *ifname
,
4615 const u8
*peer_addr
, const u8
*go_dev_addr
)
4617 struct wpa_global
*global
= wpa_s
->global
;
4618 enum p2p_invite_role role
;
4620 struct wpa_ssid
*ssid
;
4623 wpa_s
->p2p_persistent_go_freq
= 0;
4624 wpa_s
->p2p_go_ht40
= 0;
4626 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
4627 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
4630 if (wpa_s
== NULL
) {
4631 wpa_printf(MSG_DEBUG
, "P2P: Interface '%s' not found", ifname
);
4635 ssid
= wpa_s
->current_ssid
;
4637 wpa_printf(MSG_DEBUG
, "P2P: No current SSID to use for "
4642 persistent
= ssid
->p2p_persistent_group
&&
4643 wpas_p2p_get_persistent(wpa_s
->parent
, peer_addr
,
4644 ssid
->ssid
, ssid
->ssid_len
);
4646 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
4647 role
= P2P_INVITE_ROLE_ACTIVE_GO
;
4648 bssid
= wpa_s
->own_addr
;
4649 if (go_dev_addr
== NULL
)
4650 go_dev_addr
= wpa_s
->global
->p2p_dev_addr
;
4652 role
= P2P_INVITE_ROLE_CLIENT
;
4653 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
) {
4654 wpa_printf(MSG_DEBUG
, "P2P: Not associated - cannot "
4655 "invite to current group");
4658 bssid
= wpa_s
->bssid
;
4659 if (go_dev_addr
== NULL
&&
4660 !is_zero_ether_addr(wpa_s
->go_dev_addr
))
4661 go_dev_addr
= wpa_s
->go_dev_addr
;
4663 wpa_s
->parent
->pending_invite_ssid_id
= -1;
4665 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4666 return wpa_drv_p2p_invite(wpa_s
, peer_addr
, role
, bssid
,
4667 ssid
->ssid
, ssid
->ssid_len
,
4668 go_dev_addr
, persistent
);
4670 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4673 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
4674 ssid
->ssid
, ssid
->ssid_len
, wpa_s
->assoc_freq
,
4675 go_dev_addr
, persistent
);
4679 void wpas_p2p_completed(struct wpa_supplicant
*wpa_s
)
4681 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
4682 const char *ssid_txt
;
4683 u8 go_dev_addr
[ETH_ALEN
];
4684 int network_id
= -1;
4688 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
) {
4689 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
4690 wpa_s
->parent
, NULL
);
4693 if (!wpa_s
->show_group_started
|| !ssid
)
4696 wpa_s
->show_group_started
= 0;
4698 ssid_txt
= wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
);
4699 os_memset(go_dev_addr
, 0, ETH_ALEN
);
4700 if (ssid
->bssid_set
)
4701 os_memcpy(go_dev_addr
, ssid
->bssid
, ETH_ALEN
);
4702 persistent
= wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
4704 os_memcpy(wpa_s
->go_dev_addr
, go_dev_addr
, ETH_ALEN
);
4706 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
4707 wpa_s
->global
->p2p_group_formation
= NULL
;
4709 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
4710 (int) wpa_s
->assoc_freq
;
4711 if (ssid
->passphrase
== NULL
&& ssid
->psk_set
) {
4713 wpa_snprintf_hex(psk
, sizeof(psk
), ssid
->psk
, 32);
4714 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
4715 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4717 wpa_s
->ifname
, ssid_txt
, freq
, psk
,
4718 MAC2STR(go_dev_addr
),
4719 persistent
? " [PERSISTENT]" : "");
4721 wpa_msg(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_GROUP_STARTED
4722 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4723 "go_dev_addr=" MACSTR
"%s",
4724 wpa_s
->ifname
, ssid_txt
, freq
,
4725 ssid
->passphrase
? ssid
->passphrase
: "",
4726 MAC2STR(go_dev_addr
),
4727 persistent
? " [PERSISTENT]" : "");
4731 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
4734 network_id
= ssid
->id
;
4735 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 1);
4738 if (wpa_s
->global
->p2p_cb_on_scan_complete
&& !wpa_s
->global
->p2p_disabled
&&
4739 wpa_s
->global
->p2p
!= NULL
) {
4740 wpa_s
->global
->p2p_cb_on_scan_complete
= 0;
4741 if (p2p_other_scan_completed(wpa_s
->global
->p2p
) == 1) {
4742 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Pending P2P operation "
4743 "continued after successful connection");
4744 p2p_increase_search_delay(
4746 wpas_p2p_search_delay(wpa_s
));
4752 int wpas_p2p_presence_req(struct wpa_supplicant
*wpa_s
, u32 duration1
,
4753 u32 interval1
, u32 duration2
, u32 interval2
)
4755 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4757 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4760 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
||
4761 wpa_s
->current_ssid
== NULL
||
4762 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
4765 return p2p_presence_req(wpa_s
->global
->p2p
, wpa_s
->bssid
,
4766 wpa_s
->own_addr
, wpa_s
->assoc_freq
,
4767 duration1
, interval1
, duration2
, interval2
);
4771 int wpas_p2p_ext_listen(struct wpa_supplicant
*wpa_s
, unsigned int period
,
4772 unsigned int interval
)
4774 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4777 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4780 return p2p_ext_listen(wpa_s
->global
->p2p
, period
, interval
);
4784 static int wpas_p2p_is_client(struct wpa_supplicant
*wpa_s
)
4786 if (wpa_s
->current_ssid
== NULL
) {
4788 * current_ssid can be cleared when P2P client interface gets
4789 * disconnected, so assume this interface was used as P2P
4794 return wpa_s
->current_ssid
->p2p_group
&&
4795 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
;
4799 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
)
4801 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
4803 if (wpa_s
->conf
->p2p_group_idle
== 0 && !wpas_p2p_is_client(wpa_s
)) {
4804 wpa_printf(MSG_DEBUG
, "P2P: Ignore group idle timeout - "
4809 wpa_printf(MSG_DEBUG
, "P2P: Group idle timeout reached - terminate "
4811 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_IDLE_TIMEOUT
);
4815 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
)
4819 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
4820 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
4822 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
4825 timeout
= wpa_s
->conf
->p2p_group_idle
;
4826 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
&&
4827 (timeout
== 0 || timeout
> P2P_MAX_CLIENT_IDLE
))
4828 timeout
= P2P_MAX_CLIENT_IDLE
;
4834 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
)
4835 timeout
= 0; /* special client mode no-timeout */
4840 if (wpa_s
->p2p_in_provisioning
) {
4842 * Use the normal group formation timeout during the
4843 * provisioning phase to avoid terminating this process too
4844 * early due to group idle timeout.
4846 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
4847 "during provisioning");
4851 if (wpa_s
->show_group_started
) {
4853 * Use the normal group formation timeout between the end of
4854 * the provisioning phase and completion of 4-way handshake to
4855 * avoid terminating this process too early due to group idle
4858 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
4859 "while waiting for initial 4-way handshake to "
4864 wpa_printf(MSG_DEBUG
, "P2P: Set P2P group idle timeout to %u seconds",
4866 eloop_register_timeout(timeout
, 0, wpas_p2p_group_idle_timeout
,
4871 /* Returns 1 if the interface was removed */
4872 int wpas_p2p_deauth_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
4873 u16 reason_code
, const u8
*ie
, size_t ie_len
,
4874 int locally_generated
)
4876 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4878 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4881 if (!locally_generated
)
4882 p2p_deauth_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
4885 if (reason_code
== WLAN_REASON_DEAUTH_LEAVING
&& !locally_generated
&&
4886 wpa_s
->current_ssid
&&
4887 wpa_s
->current_ssid
->p2p_group
&&
4888 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
) {
4889 wpa_printf(MSG_DEBUG
, "P2P: GO indicated that the P2P Group "
4890 "session is ending");
4891 if (wpas_p2p_group_delete(wpa_s
,
4892 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
)
4901 void wpas_p2p_disassoc_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
4902 u16 reason_code
, const u8
*ie
, size_t ie_len
,
4903 int locally_generated
)
4905 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
4907 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
4910 if (!locally_generated
)
4911 p2p_disassoc_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
4916 void wpas_p2p_update_config(struct wpa_supplicant
*wpa_s
)
4918 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
4923 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
4926 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_NAME
)
4927 p2p_set_dev_name(p2p
, wpa_s
->conf
->device_name
);
4929 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_TYPE
)
4930 p2p_set_pri_dev_type(p2p
, wpa_s
->conf
->device_type
);
4933 (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_CONFIG_METHODS
))
4934 p2p_set_config_methods(p2p
, wpa_s
->wps
->config_methods
);
4936 if (wpa_s
->wps
&& (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_UUID
))
4937 p2p_set_uuid(p2p
, wpa_s
->wps
->uuid
);
4939 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_WPS_STRING
) {
4940 p2p_set_manufacturer(p2p
, wpa_s
->conf
->manufacturer
);
4941 p2p_set_model_name(p2p
, wpa_s
->conf
->model_name
);
4942 p2p_set_model_number(p2p
, wpa_s
->conf
->model_number
);
4943 p2p_set_serial_number(p2p
, wpa_s
->conf
->serial_number
);
4946 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_SEC_DEVICE_TYPE
)
4947 p2p_set_sec_dev_types(p2p
,
4948 (void *) wpa_s
->conf
->sec_device_type
,
4949 wpa_s
->conf
->num_sec_device_types
);
4951 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_VENDOR_EXTENSION
) {
4953 p2p_remove_wps_vendor_extensions(p2p
);
4954 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
4955 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
4957 p2p_add_wps_vendor_extension(
4958 p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
4962 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
4963 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
4965 country
[0] = wpa_s
->conf
->country
[0];
4966 country
[1] = wpa_s
->conf
->country
[1];
4968 p2p_set_country(p2p
, country
);
4971 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_SSID_POSTFIX
) {
4972 p2p_set_ssid_postfix(p2p
, (u8
*) wpa_s
->conf
->p2p_ssid_postfix
,
4973 wpa_s
->conf
->p2p_ssid_postfix
?
4974 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
) :
4978 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_INTRA_BSS
)
4979 p2p_set_intra_bss_dist(p2p
, wpa_s
->conf
->p2p_intra_bss
);
4981 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_LISTEN_CHANNEL
) {
4982 u8 reg_class
, channel
;
4985 if (wpa_s
->conf
->p2p_listen_reg_class
&&
4986 wpa_s
->conf
->p2p_listen_channel
) {
4987 reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
4988 channel
= wpa_s
->conf
->p2p_listen_channel
;
4992 * Pick one of the social channels randomly as the
4995 os_get_random((u8
*) &r
, sizeof(r
));
4996 channel
= 1 + (r
% 3) * 5;
4998 ret
= p2p_set_listen_channel(p2p
, reg_class
, channel
);
5000 wpa_printf(MSG_ERROR
, "P2P: Own listen channel update "
5003 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_OPER_CHANNEL
) {
5004 u8 op_reg_class
, op_channel
, cfg_op_channel
;
5007 if (wpa_s
->conf
->p2p_oper_reg_class
&&
5008 wpa_s
->conf
->p2p_oper_channel
) {
5009 op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
5010 op_channel
= wpa_s
->conf
->p2p_oper_channel
;
5015 * Use random operation channel from (1, 6, 11)
5016 *if no other preference is indicated.
5018 os_get_random((u8
*) &r
, sizeof(r
));
5019 op_channel
= 1 + (r
% 3) * 5;
5022 ret
= p2p_set_oper_channel(p2p
, op_reg_class
, op_channel
,
5025 wpa_printf(MSG_ERROR
, "P2P: Own oper channel update "
5029 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PREF_CHAN
) {
5030 if (p2p_set_pref_chan(p2p
, wpa_s
->conf
->num_p2p_pref_chan
,
5031 wpa_s
->conf
->p2p_pref_chan
) < 0) {
5032 wpa_printf(MSG_ERROR
, "P2P: Preferred channel list "
5039 int wpas_p2p_set_noa(struct wpa_supplicant
*wpa_s
, u8 count
, int start
,
5042 if (!wpa_s
->ap_iface
)
5044 return hostapd_p2p_set_noa(wpa_s
->ap_iface
->bss
[0], count
, start
,
5049 int wpas_p2p_set_cross_connect(struct wpa_supplicant
*wpa_s
, int enabled
)
5051 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5053 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
)
5056 wpa_s
->global
->cross_connection
= enabled
;
5057 p2p_set_cross_connect(wpa_s
->global
->p2p
, enabled
);
5060 struct wpa_supplicant
*iface
;
5062 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
5064 if (iface
->cross_connect_enabled
== 0)
5067 iface
->cross_connect_enabled
= 0;
5068 iface
->cross_connect_in_use
= 0;
5069 wpa_msg(iface
->parent
, MSG_INFO
,
5070 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
5071 iface
->ifname
, iface
->cross_connect_uplink
);
5079 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant
*uplink
)
5081 struct wpa_supplicant
*iface
;
5083 if (!uplink
->global
->cross_connection
)
5086 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
5087 if (!iface
->cross_connect_enabled
)
5089 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
5092 if (iface
->ap_iface
== NULL
)
5094 if (iface
->cross_connect_in_use
)
5097 iface
->cross_connect_in_use
= 1;
5098 wpa_msg(iface
->parent
, MSG_INFO
,
5099 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
5100 iface
->ifname
, iface
->cross_connect_uplink
);
5105 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant
*uplink
)
5107 struct wpa_supplicant
*iface
;
5109 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
5110 if (!iface
->cross_connect_enabled
)
5112 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
5115 if (!iface
->cross_connect_in_use
)
5118 wpa_msg(iface
->parent
, MSG_INFO
,
5119 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
5120 iface
->ifname
, iface
->cross_connect_uplink
);
5121 iface
->cross_connect_in_use
= 0;
5126 void wpas_p2p_notif_connected(struct wpa_supplicant
*wpa_s
)
5128 if (wpa_s
->ap_iface
|| wpa_s
->current_ssid
== NULL
||
5129 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
5130 wpa_s
->cross_connect_disallowed
)
5131 wpas_p2p_disable_cross_connect(wpa_s
);
5133 wpas_p2p_enable_cross_connect(wpa_s
);
5134 if (!wpa_s
->ap_iface
&&
5135 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
5136 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
5140 void wpas_p2p_notif_disconnected(struct wpa_supplicant
*wpa_s
)
5142 wpas_p2p_disable_cross_connect(wpa_s
);
5143 if (!wpa_s
->ap_iface
&&
5144 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout
,
5146 wpas_p2p_set_group_idle_timeout(wpa_s
);
5150 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
)
5152 struct wpa_supplicant
*iface
;
5154 if (!wpa_s
->global
->cross_connection
)
5157 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
5160 if (iface
->drv_flags
&
5161 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)
5163 if (iface
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
)
5166 wpa_s
->cross_connect_enabled
= 1;
5167 os_strlcpy(wpa_s
->cross_connect_uplink
, iface
->ifname
,
5168 sizeof(wpa_s
->cross_connect_uplink
));
5169 wpa_printf(MSG_DEBUG
, "P2P: Enable cross connection from "
5170 "%s to %s whenever uplink is available",
5171 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
5173 if (iface
->ap_iface
|| iface
->current_ssid
== NULL
||
5174 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
5175 iface
->cross_connect_disallowed
||
5176 iface
->wpa_state
!= WPA_COMPLETED
)
5179 wpa_s
->cross_connect_in_use
= 1;
5180 wpa_msg(wpa_s
->parent
, MSG_INFO
,
5181 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
5182 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
5188 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant
*wpa_s
)
5190 if (wpa_s
->p2p_group_interface
!= P2P_GROUP_INTERFACE_CLIENT
&&
5191 !wpa_s
->p2p_in_provisioning
)
5192 return 0; /* not P2P client operation */
5194 wpa_printf(MSG_DEBUG
, "P2P: Terminate connection due to WPS PBC "
5196 if (wpa_s
!= wpa_s
->parent
)
5197 wpa_msg_ctrl(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_OVERLAP
);
5199 if (wpa_s
->global
->p2p
)
5200 p2p_group_formation_failed(wpa_s
->global
->p2p
);
5202 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
5203 wpa_s
->parent
, NULL
);
5205 wpas_group_formation_completed(wpa_s
, 0);
5210 void wpas_p2p_update_channel_list(struct wpa_supplicant
*wpa_s
)
5212 struct p2p_channels chan
;
5214 if (wpa_s
->global
== NULL
|| wpa_s
->global
->p2p
== NULL
)
5217 os_memset(&chan
, 0, sizeof(chan
));
5218 if (wpas_p2p_setup_channels(wpa_s
, &chan
)) {
5219 wpa_printf(MSG_ERROR
, "P2P: Failed to update supported "
5224 p2p_update_channel_list(wpa_s
->global
->p2p
, &chan
);
5228 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant
*wpa_s
,
5229 struct wpa_scan_results
*scan_res
)
5231 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
5235 int wpas_p2p_cancel(struct wpa_supplicant
*wpa_s
)
5237 struct wpa_global
*global
= wpa_s
->global
;
5241 if (global
->p2p
== NULL
)
5244 wpa_printf(MSG_DEBUG
, "P2P: Request to cancel group formation");
5246 if (wpa_s
->pending_interface_name
[0] &&
5247 !is_zero_ether_addr(wpa_s
->pending_interface_addr
))
5250 peer
= p2p_get_go_neg_peer(global
->p2p
);
5252 wpa_printf(MSG_DEBUG
, "P2P: Unauthorize pending GO Neg peer "
5253 MACSTR
, MAC2STR(peer
));
5254 p2p_unauthorize(global
->p2p
, peer
);
5258 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_join
) {
5259 wpa_printf(MSG_DEBUG
, "P2P: Stop pending scan for join");
5260 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore
;
5264 if (wpa_s
->pending_pd_before_join
) {
5265 wpa_printf(MSG_DEBUG
, "P2P: Stop pending PD before join");
5266 wpa_s
->pending_pd_before_join
= 0;
5270 wpas_p2p_stop_find(wpa_s
);
5272 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
5273 if (wpa_s
== global
->p2p_group_formation
&&
5274 (wpa_s
->p2p_in_provisioning
||
5275 wpa_s
->parent
->pending_interface_type
==
5276 WPA_IF_P2P_CLIENT
)) {
5277 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in group "
5278 "formation found - cancelling",
5281 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
5282 wpa_s
->parent
, NULL
);
5283 if (wpa_s
->p2p_in_provisioning
) {
5284 wpas_group_formation_completed(wpa_s
, 0);
5287 wpas_p2p_group_delete(wpa_s
,
5288 P2P_GROUP_REMOVAL_REQUESTED
);
5294 wpa_printf(MSG_DEBUG
, "P2P: No ongoing group formation found");
5302 void wpas_p2p_interface_unavailable(struct wpa_supplicant
*wpa_s
)
5304 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
5307 wpa_printf(MSG_DEBUG
, "P2P: Remove group due to driver resource not "
5308 "being available anymore");
5309 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_UNAVAILABLE
);
5313 void wpas_p2p_update_best_channels(struct wpa_supplicant
*wpa_s
,
5314 int freq_24
, int freq_5
, int freq_overall
)
5316 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
5317 if (p2p
== NULL
|| (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
))
5319 p2p_set_best_channels(p2p
, freq_24
, freq_5
, freq_overall
);
5323 int wpas_p2p_unauthorize(struct wpa_supplicant
*wpa_s
, const char *addr
)
5326 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
5328 if (p2p
== NULL
|| (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_MGMT
))
5331 if (hwaddr_aton(addr
, peer
))
5334 return p2p_unauthorize(p2p
, peer
);
5339 * wpas_p2p_disconnect - Disconnect from a P2P Group
5340 * @wpa_s: Pointer to wpa_supplicant data
5341 * Returns: 0 on success, -1 on failure
5343 * This can be used to disconnect from a group in which the local end is a P2P
5344 * Client or to end a P2P Group in case the local end is the Group Owner. If a
5345 * virtual network interface was created for this group, that interface will be
5346 * removed. Otherwise, only the configured P2P group network will be removed
5347 * from the interface.
5349 int wpas_p2p_disconnect(struct wpa_supplicant
*wpa_s
)
5355 return wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_REQUESTED
) < 0 ?
5360 int wpas_p2p_in_progress(struct wpa_supplicant
*wpa_s
)
5364 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5367 ret
= p2p_in_progress(wpa_s
->global
->p2p
);
5370 * Check whether there is an ongoing WPS provisioning step (or
5371 * other parts of group formation) on another interface since
5372 * p2p_in_progress() does not report this to avoid issues for
5373 * scans during such provisioning step.
5375 if (wpa_s
->global
->p2p_group_formation
&&
5376 wpa_s
->global
->p2p_group_formation
!= wpa_s
) {
5377 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Another interface (%s) "
5378 "in group formation",
5379 wpa_s
->global
->p2p_group_formation
->ifname
);
5388 void wpas_p2p_network_removed(struct wpa_supplicant
*wpa_s
,
5389 struct wpa_ssid
*ssid
)
5391 if (wpa_s
->p2p_in_provisioning
&& ssid
->p2p_group
&&
5392 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
5393 wpa_s
->parent
, NULL
) > 0) {
5395 * Remove the network by scheduling the group formation
5396 * timeout to happen immediately. The teardown code
5397 * needs to be scheduled to run asynch later so that we
5398 * don't delete data from under ourselves unexpectedly.
5399 * Calling wpas_p2p_group_formation_timeout directly
5400 * causes a series of crashes in WPS failure scenarios.
5402 wpa_printf(MSG_DEBUG
, "P2P: Canceled group formation due to "
5403 "P2P group network getting removed");
5404 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
5405 wpa_s
->parent
, NULL
);
5410 struct wpa_ssid
* wpas_p2p_get_persistent(struct wpa_supplicant
*wpa_s
,
5411 const u8
*addr
, const u8
*ssid
,
5417 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
5418 if (s
->disabled
!= 2)
5421 (ssid_len
!= s
->ssid_len
||
5422 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0))
5424 if (os_memcmp(s
->bssid
, addr
, ETH_ALEN
) == 0)
5425 return s
; /* peer is GO in the persistent group */
5426 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->p2p_client_list
== NULL
)
5428 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
5429 if (os_memcmp(s
->p2p_client_list
+ i
* ETH_ALEN
,
5430 addr
, ETH_ALEN
) == 0)
5431 return s
; /* peer is P2P client in persistent
5440 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant
*wpa_s
,
5445 wpas_p2p_add_persistent_group_client(wpa_s
, addr
);
5449 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
5452 struct wpa_supplicant
*group
= wpa_s
;
5453 if (wpa_s
->global
->p2p_group_formation
)
5454 group
= wpa_s
->global
->p2p_group_formation
;
5455 wpa_s
= wpa_s
->parent
;
5456 offchannel_send_action_done(wpa_s
);
5458 wpas_p2p_group_delete(group
, P2P_GROUP_REMOVAL_SILENT
);
5459 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Fall back to GO Negotiation");
5460 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
, wpa_s
->p2p_pin
,
5461 wpa_s
->p2p_wps_method
, wpa_s
->p2p_persistent_group
, 0,
5462 0, 0, wpa_s
->p2p_go_intent
, wpa_s
->p2p_connect_freq
,
5463 wpa_s
->p2p_persistent_id
,
5464 wpa_s
->p2p_pd_before_go_neg
,
5465 wpa_s
->p2p_go_ht40
);
5469 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant
*wpa_s
)
5471 if (!wpa_s
->p2p_fallback_to_go_neg
||
5472 wpa_s
->p2p_in_provisioning
<= 5)
5475 if (wpas_p2p_peer_go(wpa_s
, wpa_s
->pending_join_dev_addr
) > 0)
5476 return 0; /* peer operating as a GO */
5478 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: GO not found for p2p_connect-auto - "
5479 "fallback to GO Negotiation");
5480 wpas_p2p_fallback_to_go_neg(wpa_s
, 1);
5486 unsigned int wpas_p2p_search_delay(struct wpa_supplicant
*wpa_s
)
5488 const char *rn
, *rn2
;
5489 struct wpa_supplicant
*ifs
;
5491 if (wpa_s
->wpa_state
> WPA_SCANNING
) {
5492 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search delay due to "
5493 "concurrent operation",
5494 P2P_CONCURRENT_SEARCH_DELAY
);
5495 return P2P_CONCURRENT_SEARCH_DELAY
;
5498 if (!wpa_s
->driver
->get_radio_name
)
5500 rn
= wpa_s
->driver
->get_radio_name(wpa_s
->drv_priv
);
5501 if (rn
== NULL
|| rn
[0] == '\0')
5504 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
5505 if (ifs
== wpa_s
|| !ifs
->driver
->get_radio_name
)
5508 rn2
= ifs
->driver
->get_radio_name(ifs
->drv_priv
);
5509 if (!rn2
|| os_strcmp(rn
, rn2
) != 0)
5511 if (ifs
->wpa_state
> WPA_SCANNING
) {
5512 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search "
5513 "delay due to concurrent operation on "
5515 P2P_CONCURRENT_SEARCH_DELAY
, ifs
->ifname
);
5516 return P2P_CONCURRENT_SEARCH_DELAY
;