3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "rsn_supp/wpa.h"
28 #include "wpa_supplicant_i.h"
31 #include "config_ssid.h"
36 #include "offchannel.h"
37 #include "wps_supplicant.h"
38 #include "p2p_supplicant.h"
39 #include "wifi_display.h"
43 * How many times to try to scan to find the GO before giving up on join
46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
51 * Defines time interval in seconds when a GO needs to evacuate a frequency that
52 * it is currently using, but is no longer valid for P2P use cases.
54 #define P2P_GO_FREQ_CHANGE_TIME 5
56 #ifndef P2P_MAX_CLIENT_IDLE
58 * How many seconds to try to reconnect to the GO when connection in P2P client
61 #define P2P_MAX_CLIENT_IDLE 10
62 #endif /* P2P_MAX_CLIENT_IDLE */
64 #ifndef P2P_MAX_INITIAL_CONN_WAIT
66 * How many seconds to wait for initial 4-way handshake to get completed after
67 * WPS provisioning step or after the re-invocation of a persistent group on a
70 #define P2P_MAX_INITIAL_CONN_WAIT 10
71 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
73 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
75 * How many seconds to wait for initial 4-way handshake to get completed after
76 * WPS provisioning step on the GO. This controls the extra time the P2P
77 * operation is considered to be in progress (e.g., to delay other scans) after
78 * WPS provisioning has been completed on the GO during group formation.
80 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
81 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
83 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
85 * How many seconds to wait for initial 4-way handshake to get completed after
86 * re-invocation of a persistent group on the GO when the client is expected
87 * to connect automatically (no user interaction).
89 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
90 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
92 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
95 * How many seconds to wait to re-attempt to move GOs, in case previous attempt
98 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
100 enum p2p_group_removal_reason
{
101 P2P_GROUP_REMOVAL_UNKNOWN
,
102 P2P_GROUP_REMOVAL_SILENT
,
103 P2P_GROUP_REMOVAL_FORMATION_FAILED
,
104 P2P_GROUP_REMOVAL_REQUESTED
,
105 P2P_GROUP_REMOVAL_IDLE_TIMEOUT
,
106 P2P_GROUP_REMOVAL_UNAVAILABLE
,
107 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
,
108 P2P_GROUP_REMOVAL_PSK_FAILURE
,
109 P2P_GROUP_REMOVAL_FREQ_CONFLICT
,
110 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
114 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
115 static struct wpa_supplicant
*
116 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
118 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
119 const u8
*ssid
, size_t ssid_len
);
120 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
121 const u8
*ssid
, size_t ssid_len
);
122 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
);
123 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
124 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
125 int auto_join
, int freq
,
126 const u8
*ssid
, size_t ssid_len
);
127 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
);
128 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
);
129 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
);
130 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
);
131 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
133 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
);
134 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
136 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
);
137 static void wpas_stop_listen(void *ctx
);
138 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
);
139 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
);
140 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
141 enum wpa_driver_if_type type
);
142 static void wpas_p2p_group_formation_failed(struct wpa_supplicant
*wpa_s
,
143 int already_deleted
);
144 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant
*wpa_s
,
145 struct wpa_used_freq_data
*freqs
,
147 static void wpas_p2p_move_go(void *eloop_ctx
, void *timeout_ctx
);
148 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant
*wpa_s
, int freq
);
150 wpas_p2p_consider_moving_gos(struct wpa_supplicant
*wpa_s
,
151 struct wpa_used_freq_data
*freqs
, unsigned int num
,
152 enum wpas_p2p_channel_update_trig trig
);
153 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx
, void *timeout_ctx
);
157 * Get the number of concurrent channels that the HW can operate, but that are
158 * currently not in use by any of the wpa_supplicant interfaces.
160 static int wpas_p2p_num_unused_channels(struct wpa_supplicant
*wpa_s
)
165 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
, sizeof(int));
169 num
= get_shared_radio_freqs(wpa_s
, freqs
,
170 wpa_s
->num_multichan_concurrent
);
173 unused
= wpa_s
->num_multichan_concurrent
- num
;
174 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: num_unused_channels: %d", unused
);
180 * Get the frequencies that are currently in use by one or more of the virtual
181 * interfaces, and that are also valid for P2P operation.
184 wpas_p2p_valid_oper_freqs(struct wpa_supplicant
*wpa_s
,
185 struct wpa_used_freq_data
*p2p_freqs
,
188 struct wpa_used_freq_data
*freqs
;
189 unsigned int num
, i
, j
;
191 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
192 sizeof(struct wpa_used_freq_data
));
196 num
= get_shared_radio_freqs_data(wpa_s
, freqs
,
197 wpa_s
->num_multichan_concurrent
);
199 os_memset(p2p_freqs
, 0, sizeof(struct wpa_used_freq_data
) * len
);
201 for (i
= 0, j
= 0; i
< num
&& j
< len
; i
++) {
202 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
203 p2p_freqs
[j
++] = freqs
[i
];
208 dump_freq_data(wpa_s
, "valid for P2P", p2p_freqs
, j
);
214 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant
*wpa_s
,
217 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
220 /* Use the wpa_s used to control the P2P Device operation */
221 wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
223 if (wpa_s
->conf
->p2p_ignore_shared_freq
&&
224 freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
225 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
226 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
230 p2p_set_own_freq_preference(wpa_s
->global
->p2p
, freq
);
234 static void wpas_p2p_scan_res_handler(struct wpa_supplicant
*wpa_s
,
235 struct wpa_scan_results
*scan_res
)
239 if (wpa_s
->p2p_scan_work
) {
240 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
241 wpa_s
->p2p_scan_work
= NULL
;
242 radio_work_done(work
);
245 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
248 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS)",
249 (int) scan_res
->num
);
251 for (i
= 0; i
< scan_res
->num
; i
++) {
252 struct wpa_scan_res
*bss
= scan_res
->res
[i
];
253 struct os_reltime time_tmp_age
, entry_ts
;
257 time_tmp_age
.sec
= bss
->age
/ 1000;
258 time_tmp_age
.usec
= (bss
->age
% 1000) * 1000;
259 os_reltime_sub(&scan_res
->fetch_time
, &time_tmp_age
, &entry_ts
);
261 ies
= (const u8
*) (bss
+ 1);
262 ies_len
= bss
->ie_len
;
263 if (bss
->beacon_ie_len
> 0 &&
264 !wpa_scan_get_vendor_ie(bss
, P2P_IE_VENDOR_TYPE
) &&
265 wpa_scan_get_vendor_ie_beacon(bss
, P2P_IE_VENDOR_TYPE
)) {
266 wpa_printf(MSG_DEBUG
, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
267 MACSTR
, MAC2STR(bss
->bssid
));
269 ies_len
= bss
->beacon_ie_len
;
273 if (p2p_scan_res_handler(wpa_s
->global
->p2p
, bss
->bssid
,
274 bss
->freq
, &entry_ts
, bss
->level
,
279 p2p_scan_res_handled(wpa_s
->global
->p2p
);
283 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work
*work
, int deinit
)
285 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
286 struct wpa_driver_scan_params
*params
= work
->ctx
;
290 if (!work
->started
) {
291 wpa_scan_free_params(params
);
295 wpa_s
->p2p_scan_work
= NULL
;
299 ret
= wpa_drv_scan(wpa_s
, params
);
300 wpa_scan_free_params(params
);
303 radio_work_done(work
);
304 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
308 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
309 os_get_reltime(&wpa_s
->scan_trigger_time
);
310 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_handler
;
311 wpa_s
->own_scan_requested
= 1;
312 wpa_s
->p2p_scan_work
= work
;
316 static int wpas_p2p_search_social_channel(struct wpa_supplicant
*wpa_s
,
319 if (wpa_s
->global
->p2p_24ghz_social_channels
&&
320 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
322 * Search all social channels regardless of whether these have
323 * been disabled for P2P operating channel use to avoid missing
328 return p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
332 static int wpas_p2p_scan(void *ctx
, enum p2p_scan_type type
, int freq
,
333 unsigned int num_req_dev_types
,
334 const u8
*req_dev_types
, const u8
*dev_id
, u16 pw_id
)
336 struct wpa_supplicant
*wpa_s
= ctx
;
337 struct wpa_driver_scan_params
*params
= NULL
;
338 struct wpabuf
*wps_ie
, *ies
;
339 unsigned int num_channels
= 0;
340 int social_channels_freq
[] = { 2412, 2437, 2462, 60480 };
344 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
347 if (wpa_s
->p2p_scan_work
) {
348 wpa_dbg(wpa_s
, MSG_INFO
, "P2P: Reject scan trigger since one is already pending");
352 params
= os_zalloc(sizeof(*params
));
356 /* P2P Wildcard SSID */
357 params
->num_ssids
= 1;
358 n
= os_malloc(P2P_WILDCARD_SSID_LEN
);
361 os_memcpy(n
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
362 params
->ssids
[0].ssid
= n
;
363 params
->ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
365 wpa_s
->wps
->dev
.p2p
= 1;
366 wps_ie
= wps_build_probe_req_ie(pw_id
, &wpa_s
->wps
->dev
,
367 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
,
368 num_req_dev_types
, req_dev_types
);
372 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
373 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
378 wpabuf_put_buf(ies
, wps_ie
);
381 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, dev_id
);
383 params
->p2p_probe
= 1;
384 n
= os_malloc(wpabuf_len(ies
));
389 os_memcpy(n
, wpabuf_head(ies
), wpabuf_len(ies
));
390 params
->extra_ies
= n
;
391 params
->extra_ies_len
= wpabuf_len(ies
);
395 case P2P_SCAN_SOCIAL
:
396 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 1,
398 if (params
->freqs
== NULL
)
400 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
401 if (wpas_p2p_search_social_channel(
402 wpa_s
, social_channels_freq
[i
]))
403 params
->freqs
[num_channels
++] =
404 social_channels_freq
[i
];
406 params
->freqs
[num_channels
++] = 0;
410 case P2P_SCAN_SPECIFIC
:
411 params
->freqs
= os_calloc(2, sizeof(int));
412 if (params
->freqs
== NULL
)
414 params
->freqs
[0] = freq
;
415 params
->freqs
[1] = 0;
417 case P2P_SCAN_SOCIAL_PLUS_ONE
:
418 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 2,
420 if (params
->freqs
== NULL
)
422 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
423 if (wpas_p2p_search_social_channel(
424 wpa_s
, social_channels_freq
[i
]))
425 params
->freqs
[num_channels
++] =
426 social_channels_freq
[i
];
428 if (p2p_supported_freq(wpa_s
->global
->p2p
, freq
))
429 params
->freqs
[num_channels
++] = freq
;
430 params
->freqs
[num_channels
++] = 0;
434 radio_remove_works(wpa_s
, "p2p-scan", 0);
435 if (radio_add_work(wpa_s
, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb
,
441 wpa_scan_free_params(params
);
446 static enum wpa_driver_if_type
wpas_p2p_if_type(int p2p_group_interface
)
448 switch (p2p_group_interface
) {
449 case P2P_GROUP_INTERFACE_PENDING
:
450 return WPA_IF_P2P_GROUP
;
451 case P2P_GROUP_INTERFACE_GO
:
452 return WPA_IF_P2P_GO
;
453 case P2P_GROUP_INTERFACE_CLIENT
:
454 return WPA_IF_P2P_CLIENT
;
457 return WPA_IF_P2P_GROUP
;
461 static struct wpa_supplicant
* wpas_get_p2p_group(struct wpa_supplicant
*wpa_s
,
463 size_t ssid_len
, int *go
)
467 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
468 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
469 if (s
->disabled
!= 0 || !s
->p2p_group
||
470 s
->ssid_len
!= ssid_len
||
471 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
473 if (s
->mode
== WPAS_MODE_P2P_GO
&&
474 s
!= wpa_s
->current_ssid
)
477 *go
= s
->mode
== WPAS_MODE_P2P_GO
;
486 static void run_wpas_p2p_disconnect(void *eloop_ctx
, void *timeout_ctx
)
488 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
489 wpa_printf(MSG_DEBUG
,
490 "P2P: Complete previously requested removal of %s",
492 wpas_p2p_disconnect(wpa_s
);
496 static int wpas_p2p_disconnect_safely(struct wpa_supplicant
*wpa_s
,
497 struct wpa_supplicant
*calling_wpa_s
)
499 if (calling_wpa_s
== wpa_s
&& wpa_s
&&
500 wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
502 * The calling wpa_s instance is going to be removed. Do that
503 * from an eloop callback to keep the instance available until
504 * the caller has returned. This my be needed, e.g., to provide
505 * control interface responses on the per-interface socket.
507 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect
,
513 return wpas_p2p_disconnect(wpa_s
);
517 /* Determine total number of clients in active groups where we are the GO */
518 static unsigned int p2p_group_go_member_count(struct wpa_supplicant
*wpa_s
)
520 unsigned int count
= 0;
523 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
524 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
525 wpa_printf(MSG_DEBUG
,
526 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
527 wpa_s
, s
, s
->disabled
, s
->p2p_group
,
529 if (!s
->disabled
&& s
->p2p_group
&&
530 s
->mode
== WPAS_MODE_P2P_GO
) {
531 count
+= p2p_get_group_num_members(
541 /* Find an interface for a P2P group where we are the GO */
542 static struct wpa_supplicant
*
543 wpas_p2p_get_go_group(struct wpa_supplicant
*wpa_s
)
545 struct wpa_supplicant
*save
= NULL
;
551 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
552 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
553 if (s
->disabled
|| !s
->p2p_group
||
554 s
->mode
!= WPAS_MODE_P2P_GO
)
557 /* Prefer a group with connected clients */
558 if (p2p_get_group_num_members(wpa_s
->p2p_group
))
564 /* No group with connected clients, so pick the one without (if any) */
569 /* Find an active P2P group where we are the GO */
570 static struct wpa_ssid
* wpas_p2p_group_go_ssid(struct wpa_supplicant
*wpa_s
,
573 struct wpa_ssid
*s
, *empty
= NULL
;
578 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
579 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
580 if (s
->disabled
|| !s
->p2p_group
||
581 s
->mode
!= WPAS_MODE_P2P_GO
)
584 os_memcpy(bssid
, wpa_s
->own_addr
, ETH_ALEN
);
585 if (p2p_get_group_num_members(wpa_s
->p2p_group
))
595 /* Find a persistent group where we are the GO */
596 static struct wpa_ssid
*
597 wpas_p2p_get_persistent_go(struct wpa_supplicant
*wpa_s
)
601 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
602 if (s
->disabled
== 2 && s
->mode
== WPAS_MODE_P2P_GO
)
610 static u8
p2ps_group_capability(void *ctx
, u8 incoming
, u8 role
)
612 struct wpa_supplicant
*wpa_s
= ctx
, *tmp_wpa_s
;
614 u8 conncap
= P2PS_SETUP_NONE
;
615 unsigned int owned_members
= 0;
616 unsigned int owner
= 0;
617 unsigned int client
= 0;
618 struct wpa_supplicant
*go_wpa_s
;
619 struct wpa_ssid
*persistent_go
;
620 int p2p_no_group_iface
;
622 wpa_printf(MSG_DEBUG
, "P2P: Conncap - in:%d role:%d", incoming
, role
);
625 * For non-concurrent capable devices:
626 * If persistent_go, then no new.
627 * If GO, then no client.
628 * If client, then no GO.
630 go_wpa_s
= wpas_p2p_get_go_group(wpa_s
);
631 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
632 p2p_no_group_iface
= !wpas_p2p_create_iface(wpa_s
);
634 wpa_printf(MSG_DEBUG
, "P2P: GO(iface)=%p persistent(ssid)=%p",
635 go_wpa_s
, persistent_go
);
637 for (tmp_wpa_s
= wpa_s
->global
->ifaces
; tmp_wpa_s
;
638 tmp_wpa_s
= tmp_wpa_s
->next
) {
639 for (s
= tmp_wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
640 wpa_printf(MSG_DEBUG
,
641 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
642 tmp_wpa_s
, s
, s
->disabled
,
643 s
->p2p_group
, s
->mode
);
644 if (!s
->disabled
&& s
->p2p_group
) {
645 if (s
->mode
== WPAS_MODE_P2P_GO
) {
647 p2p_get_group_num_members(
648 tmp_wpa_s
->p2p_group
);
656 /* If not concurrent, restrict our choices */
657 if (p2p_no_group_iface
) {
658 wpa_printf(MSG_DEBUG
, "P2P: p2p_no_group_iface");
661 return P2PS_SETUP_NONE
;
664 if (role
== P2PS_SETUP_CLIENT
||
665 incoming
== P2PS_SETUP_GROUP_OWNER
||
666 p2p_client_limit_reached(go_wpa_s
->p2p_group
))
667 return P2PS_SETUP_NONE
;
669 return P2PS_SETUP_GROUP_OWNER
;
673 if (role
== P2PS_SETUP_NONE
|| role
== P2PS_SETUP_NEW
) {
675 return P2PS_SETUP_GROUP_OWNER
|
677 if (incoming
== P2PS_SETUP_NEW
) {
680 if (os_get_random(&r
, sizeof(r
)) < 0 ||
682 return P2PS_SETUP_CLIENT
;
683 return P2PS_SETUP_GROUP_OWNER
;
689 /* If a required role has been specified, handle it here */
690 if (role
&& role
!= P2PS_SETUP_NEW
) {
692 case P2PS_SETUP_NONE
:
694 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
:
695 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_NEW
:
699 case P2PS_SETUP_GROUP_OWNER
:
701 * Must be a complimentary role - cannot be a client to
702 * more than one peer.
704 if (incoming
== role
|| client
)
705 return P2PS_SETUP_NONE
;
707 return P2PS_SETUP_CLIENT
;
709 case P2PS_SETUP_CLIENT
:
710 /* Must be a complimentary role */
711 if (incoming
!= role
) {
712 conncap
= P2PS_SETUP_GROUP_OWNER
;
717 return P2PS_SETUP_NONE
;
722 * For now, we only will support ownership of one group, and being a
723 * client of one group. Therefore, if we have either an existing GO
724 * group, or an existing client group, we will not do a new GO
725 * negotiation, but rather try to re-use the existing groups.
728 case P2PS_SETUP_NONE
:
731 conncap
= P2PS_SETUP_GROUP_OWNER
;
732 else if (!owned_members
)
733 conncap
= P2PS_SETUP_NEW
;
734 else if (incoming
== P2PS_SETUP_NONE
)
735 conncap
= P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
;
737 conncap
= P2PS_SETUP_CLIENT
;
740 case P2PS_SETUP_CLIENT
:
741 conncap
= P2PS_SETUP_GROUP_OWNER
;
744 case P2PS_SETUP_GROUP_OWNER
:
746 conncap
= P2PS_SETUP_CLIENT
;
749 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_NEW
:
750 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
:
752 conncap
= P2PS_SETUP_GROUP_OWNER
;
756 if (os_get_random(&r
, sizeof(r
)) < 0 ||
758 conncap
= P2PS_SETUP_CLIENT
;
760 conncap
= P2PS_SETUP_GROUP_OWNER
;
765 return P2PS_SETUP_NONE
;
769 if ((conncap
& P2PS_SETUP_GROUP_OWNER
) ||
770 (!incoming
&& (conncap
& P2PS_SETUP_NEW
))) {
771 if (go_wpa_s
&& p2p_client_limit_reached(go_wpa_s
->p2p_group
))
772 conncap
&= ~P2PS_SETUP_GROUP_OWNER
;
773 wpa_printf(MSG_DEBUG
, "P2P: GOs:%d members:%d conncap:%d",
774 owner
, owned_members
, conncap
);
776 s
= wpas_p2p_get_persistent_go(wpa_s
);
778 if (!s
&& !owner
&& p2p_no_group_iface
) {
779 p2p_set_intended_addr(wpa_s
->global
->p2p
,
781 } else if (!s
&& !owner
) {
782 if (wpas_p2p_add_group_interface(wpa_s
,
783 WPA_IF_P2P_GO
) < 0) {
784 wpa_printf(MSG_ERROR
,
785 "P2P: Failed to allocate a new interface for the group");
786 return P2PS_SETUP_NONE
;
788 wpa_s
->global
->pending_group_iface_for_p2ps
= 1;
789 p2p_set_intended_addr(wpa_s
->global
->p2p
,
790 wpa_s
->pending_interface_addr
);
798 static int wpas_p2p_group_delete(struct wpa_supplicant
*wpa_s
,
799 enum p2p_group_removal_reason removal_reason
)
801 struct wpa_ssid
*ssid
;
805 ssid
= wpa_s
->current_ssid
;
808 * The current SSID was not known, but there may still be a
809 * pending P2P group interface waiting for provisioning or a
810 * P2P group that is trying to reconnect.
812 ssid
= wpa_s
->conf
->ssid
;
814 if (ssid
->p2p_group
&& ssid
->disabled
!= 2)
819 wpa_s
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)
821 wpa_printf(MSG_ERROR
, "P2P: P2P group interface "
826 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
)
828 else if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
||
829 (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
)) {
830 wpa_s
->reassociate
= 0;
831 wpa_s
->disconnected
= 1;
836 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
&& ssid
)
837 wpas_notify_p2p_group_removed(wpa_s
, ssid
, gtype
);
839 if (os_strcmp(gtype
, "client") == 0) {
840 wpa_supplicant_deauthenticate(wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
841 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal
,
843 wpa_printf(MSG_DEBUG
,
844 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
845 removal_reason
= P2P_GROUP_REMOVAL_PSK_FAILURE
;
846 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
,
851 if (wpa_s
->cross_connect_in_use
) {
852 wpa_s
->cross_connect_in_use
= 0;
853 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
854 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
855 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
857 switch (removal_reason
) {
858 case P2P_GROUP_REMOVAL_REQUESTED
:
859 reason
= " reason=REQUESTED";
861 case P2P_GROUP_REMOVAL_FORMATION_FAILED
:
862 reason
= " reason=FORMATION_FAILED";
864 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT
:
865 reason
= " reason=IDLE";
867 case P2P_GROUP_REMOVAL_UNAVAILABLE
:
868 reason
= " reason=UNAVAILABLE";
870 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION
:
871 reason
= " reason=GO_ENDING_SESSION";
873 case P2P_GROUP_REMOVAL_PSK_FAILURE
:
874 reason
= " reason=PSK_FAILURE";
876 case P2P_GROUP_REMOVAL_FREQ_CONFLICT
:
877 reason
= " reason=FREQ_CONFLICT";
883 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
) {
884 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
885 P2P_EVENT_GROUP_REMOVED
"%s %s%s",
886 wpa_s
->ifname
, gtype
, reason
);
889 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
) > 0)
890 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group freq_conflict timeout");
891 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
892 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
893 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
894 wpa_s
->parent
, NULL
) > 0) {
895 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group formation "
897 wpa_s
->p2p_in_provisioning
= 0;
898 wpas_p2p_group_formation_failed(wpa_s
, 1);
901 wpa_s
->p2p_in_invitation
= 0;
902 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
903 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
, wpa_s
, NULL
);
906 * Make sure wait for the first client does not remain active after the
907 * group has been removed.
909 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
911 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
912 struct wpa_global
*global
;
914 enum wpa_driver_if_type type
;
915 wpa_printf(MSG_DEBUG
, "P2P: Remove group interface %s",
917 global
= wpa_s
->global
;
918 ifname
= os_strdup(wpa_s
->ifname
);
919 type
= wpas_p2p_if_type(wpa_s
->p2p_group_interface
);
920 eloop_cancel_timeout(run_wpas_p2p_disconnect
, wpa_s
, NULL
);
921 wpa_supplicant_remove_iface(wpa_s
->global
, wpa_s
, 0);
922 wpa_s
= global
->ifaces
;
924 wpa_drv_if_remove(wpa_s
, type
, ifname
);
929 if (!wpa_s
->p2p_go_group_formation_completed
) {
930 wpa_s
->global
->p2p_group_formation
= NULL
;
931 wpa_s
->p2p_in_provisioning
= 0;
934 wpa_s
->show_group_started
= 0;
935 os_free(wpa_s
->go_params
);
936 wpa_s
->go_params
= NULL
;
938 os_free(wpa_s
->p2p_group_common_freqs
);
939 wpa_s
->p2p_group_common_freqs
= NULL
;
940 wpa_s
->p2p_group_common_freqs_num
= 0;
942 wpa_s
->waiting_presence_resp
= 0;
944 wpa_printf(MSG_DEBUG
, "P2P: Remove temporary group network");
945 if (ssid
&& (ssid
->p2p_group
||
946 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
||
947 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
))) {
949 if (ssid
== wpa_s
->current_ssid
) {
950 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
951 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
952 wpa_s
->current_ssid
= NULL
;
955 * Networks objects created during any P2P activities are not
956 * exposed out as they might/will confuse certain non-P2P aware
957 * applications since these network objects won't behave like
960 * Likewise, we don't send out network removed signals for such
963 wpa_config_remove_network(wpa_s
->conf
, id
);
964 wpa_supplicant_clear_status(wpa_s
);
965 wpa_supplicant_cancel_sched_scan(wpa_s
);
967 wpa_printf(MSG_DEBUG
, "P2P: Temporary group network not "
971 wpa_supplicant_ap_deinit(wpa_s
);
973 wpa_drv_deinit_p2p_cli(wpa_s
);
975 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
981 static int wpas_p2p_persistent_group(struct wpa_supplicant
*wpa_s
,
983 const u8
*ssid
, size_t ssid_len
)
991 if (wpa_s
->go_params
)
992 bssid
= wpa_s
->go_params
->peer_interface_addr
;
994 bssid
= wpa_s
->bssid
;
996 bss
= wpa_bss_get(wpa_s
, bssid
, ssid
, ssid_len
);
997 if (bss
== NULL
&& wpa_s
->go_params
&&
998 !is_zero_ether_addr(wpa_s
->go_params
->peer_device_addr
))
999 bss
= wpa_bss_get_p2p_dev_addr(
1000 wpa_s
, wpa_s
->go_params
->peer_device_addr
);
1002 u8 iface_addr
[ETH_ALEN
];
1003 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, bssid
,
1005 bss
= wpa_bss_get(wpa_s
, iface_addr
, ssid
, ssid_len
);
1008 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
1009 "group is persistent - BSS " MACSTR
" not found",
1014 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
1016 p2p
= wpa_bss_get_vendor_ie_multi_beacon(bss
,
1017 P2P_IE_VENDOR_TYPE
);
1019 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
1020 "group is persistent - BSS " MACSTR
1021 " did not include P2P IE", MAC2STR(bssid
));
1022 wpa_hexdump(MSG_DEBUG
, "P2P: Probe Response IEs",
1023 (u8
*) (bss
+ 1), bss
->ie_len
);
1024 wpa_hexdump(MSG_DEBUG
, "P2P: Beacon IEs",
1025 ((u8
*) bss
+ 1) + bss
->ie_len
,
1026 bss
->beacon_ie_len
);
1030 group_capab
= p2p_get_group_capab(p2p
);
1031 addr
= p2p_get_go_dev_addr(p2p
);
1032 wpa_printf(MSG_DEBUG
, "P2P: Checking whether group is persistent: "
1033 "group_capab=0x%x", group_capab
);
1035 os_memcpy(go_dev_addr
, addr
, ETH_ALEN
);
1036 wpa_printf(MSG_DEBUG
, "P2P: GO Device Address " MACSTR
,
1039 os_memset(go_dev_addr
, 0, ETH_ALEN
);
1042 wpa_printf(MSG_DEBUG
, "P2P: BSS " MACSTR
" group_capab=0x%x "
1043 "go_dev_addr=" MACSTR
,
1044 MAC2STR(bssid
), group_capab
, MAC2STR(go_dev_addr
));
1046 return group_capab
& P2P_GROUP_CAPAB_PERSISTENT_GROUP
;
1050 static int wpas_p2p_store_persistent_group(struct wpa_supplicant
*wpa_s
,
1051 struct wpa_ssid
*ssid
,
1052 const u8
*go_dev_addr
)
1057 wpa_printf(MSG_DEBUG
, "P2P: Storing credentials for a persistent "
1058 "group (GO Dev Addr " MACSTR
")", MAC2STR(go_dev_addr
));
1059 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
1060 if (s
->disabled
== 2 &&
1061 os_memcmp(go_dev_addr
, s
->bssid
, ETH_ALEN
) == 0 &&
1062 s
->ssid_len
== ssid
->ssid_len
&&
1063 os_memcmp(ssid
->ssid
, s
->ssid
, ssid
->ssid_len
) == 0)
1068 wpa_printf(MSG_DEBUG
, "P2P: Update existing persistent group "
1070 if (ssid
->passphrase
&& !s
->passphrase
)
1072 else if (ssid
->passphrase
&& s
->passphrase
&&
1073 os_strcmp(ssid
->passphrase
, s
->passphrase
) != 0)
1076 wpa_printf(MSG_DEBUG
, "P2P: Create a new persistent group "
1079 s
= wpa_config_add_network(wpa_s
->conf
);
1084 * Instead of network_added we emit persistent_group_added
1085 * notification. Also to keep the defense checks in
1086 * persistent_group obj registration method, we set the
1087 * relevant flags in s to designate it as a persistent group.
1090 s
->p2p_persistent_group
= 1;
1091 wpas_notify_persistent_group_added(wpa_s
, s
);
1092 wpa_config_set_network_defaults(s
);
1096 s
->p2p_persistent_group
= 1;
1099 os_memcpy(s
->bssid
, go_dev_addr
, ETH_ALEN
);
1100 s
->mode
= ssid
->mode
;
1101 s
->auth_alg
= WPA_AUTH_ALG_OPEN
;
1102 s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1103 s
->proto
= WPA_PROTO_RSN
;
1104 s
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1106 if (ssid
->passphrase
) {
1107 os_free(s
->passphrase
);
1108 s
->passphrase
= os_strdup(ssid
->passphrase
);
1110 if (ssid
->psk_set
) {
1112 os_memcpy(s
->psk
, ssid
->psk
, 32);
1114 if (s
->passphrase
&& !s
->psk_set
)
1115 wpa_config_update_psk(s
);
1116 if (s
->ssid
== NULL
|| s
->ssid_len
< ssid
->ssid_len
) {
1118 s
->ssid
= os_malloc(ssid
->ssid_len
);
1121 s
->ssid_len
= ssid
->ssid_len
;
1122 os_memcpy(s
->ssid
, ssid
->ssid
, s
->ssid_len
);
1124 if (ssid
->mode
== WPAS_MODE_P2P_GO
&& wpa_s
->global
->add_psk
) {
1125 dl_list_add(&s
->psk_list
, &wpa_s
->global
->add_psk
->list
);
1126 wpa_s
->global
->add_psk
= NULL
;
1130 if (changed
&& wpa_s
->conf
->update_config
&&
1131 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
)) {
1132 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1139 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant
*wpa_s
,
1142 struct wpa_ssid
*ssid
, *s
;
1146 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
1148 ssid
= wpa_s
->current_ssid
;
1149 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
1150 !ssid
->p2p_persistent_group
)
1153 for (s
= p2p_wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
1154 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
1157 if (s
->ssid_len
== ssid
->ssid_len
&&
1158 os_memcmp(s
->ssid
, ssid
->ssid
, s
->ssid_len
) == 0)
1165 for (i
= 0; s
->p2p_client_list
&& i
< s
->num_p2p_clients
; i
++) {
1166 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
, addr
,
1170 if (i
== s
->num_p2p_clients
- 1)
1171 return; /* already the most recent entry */
1173 /* move the entry to mark it most recent */
1174 os_memmove(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
1175 s
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
1176 (s
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
1177 os_memcpy(s
->p2p_client_list
+
1178 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
, addr
,
1180 os_memset(s
->p2p_client_list
+
1181 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
+ ETH_ALEN
,
1187 if (!found
&& s
->num_p2p_clients
< P2P_MAX_STORED_CLIENTS
) {
1188 n
= os_realloc_array(s
->p2p_client_list
,
1189 s
->num_p2p_clients
+ 1, 2 * ETH_ALEN
);
1192 os_memcpy(n
+ s
->num_p2p_clients
* 2 * ETH_ALEN
, addr
,
1194 os_memset(n
+ s
->num_p2p_clients
* 2 * ETH_ALEN
+ ETH_ALEN
,
1196 s
->p2p_client_list
= n
;
1197 s
->num_p2p_clients
++;
1198 } else if (!found
&& s
->p2p_client_list
) {
1199 /* Not enough room for an additional entry - drop the oldest
1201 os_memmove(s
->p2p_client_list
,
1202 s
->p2p_client_list
+ 2 * ETH_ALEN
,
1203 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
);
1204 os_memcpy(s
->p2p_client_list
+
1205 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
,
1207 os_memset(s
->p2p_client_list
+
1208 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
+ ETH_ALEN
,
1212 if (p2p_wpa_s
->conf
->update_config
&&
1213 wpa_config_write(p2p_wpa_s
->confname
, p2p_wpa_s
->conf
))
1214 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1218 static void wpas_p2p_group_started(struct wpa_supplicant
*wpa_s
,
1219 int go
, struct wpa_ssid
*ssid
, int freq
,
1220 const u8
*psk
, const char *passphrase
,
1221 const u8
*go_dev_addr
, int persistent
,
1224 const char *ssid_txt
;
1228 wpa_snprintf_hex(psk_txt
, sizeof(psk_txt
), psk
, 32);
1233 ssid_txt
= wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
);
1237 if (passphrase
&& passphrase
[0] == '\0')
1241 * Include PSK/passphrase only in the control interface message and
1242 * leave it out from the debug log entry.
1244 wpa_msg_global_ctrl(wpa_s
->parent
, MSG_INFO
,
1245 P2P_EVENT_GROUP_STARTED
1246 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1248 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
1249 psk
? " psk=" : "", psk_txt
,
1250 passphrase
? " passphrase=\"" : "",
1251 passphrase
? passphrase
: "",
1252 passphrase
? "\"" : "",
1253 MAC2STR(go_dev_addr
),
1254 persistent
? " [PERSISTENT]" : "", extra
);
1255 wpa_printf(MSG_INFO
, P2P_EVENT_GROUP_STARTED
1256 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR
"%s%s",
1257 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
1258 MAC2STR(go_dev_addr
), persistent
? " [PERSISTENT]" : "",
1263 static void wpas_group_formation_completed(struct wpa_supplicant
*wpa_s
,
1264 int success
, int already_deleted
)
1266 struct wpa_ssid
*ssid
;
1269 u8 go_dev_addr
[ETH_ALEN
];
1270 int network_id
= -1;
1273 * This callback is likely called for the main interface. Update wpa_s
1274 * to use the group interface if a new interface was created for the
1277 if (wpa_s
->global
->p2p_group_formation
)
1278 wpa_s
= wpa_s
->global
->p2p_group_formation
;
1279 if (wpa_s
->p2p_go_group_formation_completed
) {
1280 wpa_s
->global
->p2p_group_formation
= NULL
;
1281 wpa_s
->p2p_in_provisioning
= 0;
1283 wpa_s
->p2p_in_invitation
= 0;
1284 wpa_s
->group_formation_reported
= 1;
1287 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1288 P2P_EVENT_GROUP_FORMATION_FAILURE
);
1289 if (already_deleted
)
1291 wpas_p2p_group_delete(wpa_s
,
1292 P2P_GROUP_REMOVAL_FORMATION_FAILED
);
1296 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1297 P2P_EVENT_GROUP_FORMATION_SUCCESS
);
1299 ssid
= wpa_s
->current_ssid
;
1300 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
1301 ssid
->mode
= WPAS_MODE_P2P_GO
;
1302 p2p_group_notif_formation_done(wpa_s
->p2p_group
);
1303 wpa_supplicant_ap_mac_addr_filter(wpa_s
, NULL
);
1308 client
= ssid
->mode
== WPAS_MODE_INFRA
;
1309 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
1310 persistent
= ssid
->p2p_persistent_group
;
1311 os_memcpy(go_dev_addr
, wpa_s
->global
->p2p_dev_addr
,
1314 persistent
= wpas_p2p_persistent_group(wpa_s
,
1319 client
= wpa_s
->p2p_group_interface
==
1320 P2P_GROUP_INTERFACE_CLIENT
;
1321 os_memset(go_dev_addr
, 0, ETH_ALEN
);
1324 wpa_s
->show_group_started
= 0;
1327 * Indicate event only after successfully completed 4-way
1328 * handshake, i.e., when the interface is ready for data
1331 wpa_s
->show_group_started
= 1;
1333 wpas_p2p_group_started(wpa_s
, 1, ssid
,
1334 ssid
? ssid
->frequency
: 0,
1335 ssid
&& ssid
->passphrase
== NULL
&&
1336 ssid
->psk_set
? ssid
->psk
: NULL
,
1337 ssid
? ssid
->passphrase
: NULL
,
1338 go_dev_addr
, persistent
, "");
1339 wpas_p2p_cross_connect_setup(wpa_s
);
1340 wpas_p2p_set_group_idle_timeout(wpa_s
);
1344 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
1347 os_free(wpa_s
->global
->add_psk
);
1348 wpa_s
->global
->add_psk
= NULL
;
1350 if (network_id
< 0 && ssid
)
1351 network_id
= ssid
->id
;
1353 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1354 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1359 struct send_action_work
{
1365 unsigned int wait_time
;
1370 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx
,
1373 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
1375 if (!wpa_s
->p2p_send_action_work
)
1378 wpa_printf(MSG_DEBUG
, "P2P: Send Action frame radio work timed out");
1379 os_free(wpa_s
->p2p_send_action_work
->ctx
);
1380 radio_work_done(wpa_s
->p2p_send_action_work
);
1381 wpa_s
->p2p_send_action_work
= NULL
;
1385 static void wpas_p2p_action_tx_clear(struct wpa_supplicant
*wpa_s
)
1387 if (wpa_s
->p2p_send_action_work
) {
1388 struct send_action_work
*awork
;
1389 awork
= wpa_s
->p2p_send_action_work
->ctx
;
1390 if (awork
->wait_time
== 0) {
1392 radio_work_done(wpa_s
->p2p_send_action_work
);
1393 wpa_s
->p2p_send_action_work
= NULL
;
1396 * In theory, this should not be needed, but number of
1397 * places in the P2P code is still using non-zero wait
1398 * time for the last Action frame in the sequence and
1399 * some of these do not call send_action_done().
1401 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1403 eloop_register_timeout(
1404 0, awork
->wait_time
* 1000,
1405 wpas_p2p_send_action_work_timeout
,
1412 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant
*wpa_s
,
1414 const u8
*dst
, const u8
*src
,
1416 const u8
*data
, size_t data_len
,
1417 enum offchannel_send_action_result
1420 enum p2p_send_action_result res
= P2P_SEND_ACTION_SUCCESS
;
1422 wpas_p2p_action_tx_clear(wpa_s
);
1424 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
1428 case OFFCHANNEL_SEND_ACTION_SUCCESS
:
1429 res
= P2P_SEND_ACTION_SUCCESS
;
1431 case OFFCHANNEL_SEND_ACTION_NO_ACK
:
1432 res
= P2P_SEND_ACTION_NO_ACK
;
1434 case OFFCHANNEL_SEND_ACTION_FAILED
:
1435 res
= P2P_SEND_ACTION_FAILED
;
1439 p2p_send_action_cb(wpa_s
->global
->p2p
, freq
, dst
, src
, bssid
, res
);
1441 if (result
!= OFFCHANNEL_SEND_ACTION_SUCCESS
&&
1442 wpa_s
->pending_pd_before_join
&&
1443 (os_memcmp(dst
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
1444 os_memcmp(dst
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0) &&
1445 wpa_s
->p2p_fallback_to_go_neg
) {
1446 wpa_s
->pending_pd_before_join
= 0;
1447 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No ACK for PD Req "
1448 "during p2p_connect-auto");
1449 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1450 P2P_EVENT_FALLBACK_TO_GO_NEG
1451 "reason=no-ACK-to-PD-Req");
1452 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
1458 static void wpas_send_action_cb(struct wpa_radio_work
*work
, int deinit
)
1460 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
1461 struct send_action_work
*awork
= work
->ctx
;
1464 if (work
->started
) {
1465 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1467 wpa_s
->p2p_send_action_work
= NULL
;
1468 offchannel_send_action_done(wpa_s
);
1474 if (offchannel_send_action(wpa_s
, awork
->freq
, awork
->dst
, awork
->src
,
1475 awork
->bssid
, awork
->buf
, awork
->len
,
1477 wpas_p2p_send_action_tx_status
, 1) < 0) {
1479 radio_work_done(work
);
1482 wpa_s
->p2p_send_action_work
= work
;
1486 static int wpas_send_action_work(struct wpa_supplicant
*wpa_s
,
1487 unsigned int freq
, const u8
*dst
,
1488 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1489 size_t len
, unsigned int wait_time
)
1491 struct send_action_work
*awork
;
1493 if (wpa_s
->p2p_send_action_work
) {
1494 wpa_printf(MSG_DEBUG
, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1498 awork
= os_zalloc(sizeof(*awork
) + len
);
1503 os_memcpy(awork
->dst
, dst
, ETH_ALEN
);
1504 os_memcpy(awork
->src
, src
, ETH_ALEN
);
1505 os_memcpy(awork
->bssid
, bssid
, ETH_ALEN
);
1507 awork
->wait_time
= wait_time
;
1508 os_memcpy(awork
->buf
, buf
, len
);
1510 if (radio_add_work(wpa_s
, freq
, "p2p-send-action", 0,
1511 wpas_send_action_cb
, awork
) < 0) {
1520 static int wpas_send_action(void *ctx
, unsigned int freq
, const u8
*dst
,
1521 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1522 size_t len
, unsigned int wait_time
)
1524 struct wpa_supplicant
*wpa_s
= ctx
;
1525 int listen_freq
= -1, send_freq
= -1;
1527 if (wpa_s
->p2p_listen_work
)
1528 listen_freq
= wpa_s
->p2p_listen_work
->freq
;
1529 if (wpa_s
->p2p_send_action_work
)
1530 send_freq
= wpa_s
->p2p_send_action_work
->freq
;
1531 if (listen_freq
!= (int) freq
&& send_freq
!= (int) freq
) {
1532 wpa_printf(MSG_DEBUG
, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1533 listen_freq
, send_freq
);
1534 return wpas_send_action_work(wpa_s
, freq
, dst
, src
, bssid
, buf
,
1538 wpa_printf(MSG_DEBUG
, "P2P: Use ongoing radio work for Action frame TX");
1539 return offchannel_send_action(wpa_s
, freq
, dst
, src
, bssid
, buf
, len
,
1541 wpas_p2p_send_action_tx_status
, 1);
1545 static void wpas_send_action_done(void *ctx
)
1547 struct wpa_supplicant
*wpa_s
= ctx
;
1549 if (wpa_s
->p2p_send_action_work
) {
1550 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1552 os_free(wpa_s
->p2p_send_action_work
->ctx
);
1553 radio_work_done(wpa_s
->p2p_send_action_work
);
1554 wpa_s
->p2p_send_action_work
= NULL
;
1557 offchannel_send_action_done(wpa_s
);
1561 static int wpas_copy_go_neg_results(struct wpa_supplicant
*wpa_s
,
1562 struct p2p_go_neg_results
*params
)
1564 if (wpa_s
->go_params
== NULL
) {
1565 wpa_s
->go_params
= os_malloc(sizeof(*params
));
1566 if (wpa_s
->go_params
== NULL
)
1569 os_memcpy(wpa_s
->go_params
, params
, sizeof(*params
));
1574 static void wpas_start_wps_enrollee(struct wpa_supplicant
*wpa_s
,
1575 struct p2p_go_neg_results
*res
)
1577 wpa_s
->group_formation_reported
= 0;
1578 wpa_printf(MSG_DEBUG
, "P2P: Start WPS Enrollee for peer " MACSTR
1579 " dev_addr " MACSTR
" wps_method %d",
1580 MAC2STR(res
->peer_interface_addr
),
1581 MAC2STR(res
->peer_device_addr
), res
->wps_method
);
1582 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Start WPS Enrollee for SSID",
1583 res
->ssid
, res
->ssid_len
);
1584 wpa_supplicant_ap_deinit(wpa_s
);
1585 wpas_copy_go_neg_results(wpa_s
, res
);
1586 if (res
->wps_method
== WPS_PBC
) {
1587 wpas_wps_start_pbc(wpa_s
, res
->peer_interface_addr
, 1);
1588 #ifdef CONFIG_WPS_NFC
1589 } else if (res
->wps_method
== WPS_NFC
) {
1590 wpas_wps_start_nfc(wpa_s
, res
->peer_device_addr
,
1591 res
->peer_interface_addr
,
1592 wpa_s
->parent
->p2p_oob_dev_pw
,
1593 wpa_s
->parent
->p2p_oob_dev_pw_id
, 1,
1594 wpa_s
->parent
->p2p_oob_dev_pw_id
==
1595 DEV_PW_NFC_CONNECTION_HANDOVER
?
1596 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
:
1599 #endif /* CONFIG_WPS_NFC */
1601 u16 dev_pw_id
= DEV_PW_DEFAULT
;
1602 if (wpa_s
->p2p_wps_method
== WPS_P2PS
)
1603 dev_pw_id
= DEV_PW_P2PS_DEFAULT
;
1604 if (wpa_s
->p2p_wps_method
== WPS_PIN_KEYPAD
)
1605 dev_pw_id
= DEV_PW_REGISTRAR_SPECIFIED
;
1606 wpas_wps_start_pin(wpa_s
, res
->peer_interface_addr
,
1607 wpa_s
->p2p_pin
, 1, dev_pw_id
);
1612 static void wpas_p2p_add_psk_list(struct wpa_supplicant
*wpa_s
,
1613 struct wpa_ssid
*ssid
)
1615 struct wpa_ssid
*persistent
;
1616 struct psk_list_entry
*psk
;
1617 struct hostapd_data
*hapd
;
1619 if (!wpa_s
->ap_iface
)
1622 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
1624 if (persistent
== NULL
)
1627 hapd
= wpa_s
->ap_iface
->bss
[0];
1629 dl_list_for_each(psk
, &persistent
->psk_list
, struct psk_list_entry
,
1631 struct hostapd_wpa_psk
*hpsk
;
1633 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add persistent group PSK entry for "
1635 MAC2STR(psk
->addr
), psk
->p2p
);
1636 hpsk
= os_zalloc(sizeof(*hpsk
));
1639 os_memcpy(hpsk
->psk
, psk
->psk
, PMK_LEN
);
1641 os_memcpy(hpsk
->p2p_dev_addr
, psk
->addr
, ETH_ALEN
);
1643 os_memcpy(hpsk
->addr
, psk
->addr
, ETH_ALEN
);
1644 hpsk
->next
= hapd
->conf
->ssid
.wpa_psk
;
1645 hapd
->conf
->ssid
.wpa_psk
= hpsk
;
1650 static void p2p_go_dump_common_freqs(struct wpa_supplicant
*wpa_s
)
1654 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Common group frequencies (len=%u):",
1655 wpa_s
->p2p_group_common_freqs_num
);
1657 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++)
1658 wpa_dbg(wpa_s
, MSG_DEBUG
, "freq[%u]: %d",
1659 i
, wpa_s
->p2p_group_common_freqs
[i
]);
1663 static void p2p_go_save_group_common_freqs(struct wpa_supplicant
*wpa_s
,
1664 struct p2p_go_neg_results
*params
)
1666 unsigned int i
, len
= int_array_len(wpa_s
->go_params
->freq_list
);
1668 wpa_s
->p2p_group_common_freqs_num
= 0;
1669 os_free(wpa_s
->p2p_group_common_freqs
);
1670 wpa_s
->p2p_group_common_freqs
= os_calloc(len
, sizeof(int));
1671 if (!wpa_s
->p2p_group_common_freqs
)
1674 for (i
= 0; i
< len
; i
++) {
1675 if (!wpa_s
->go_params
->freq_list
[i
])
1677 wpa_s
->p2p_group_common_freqs
[i
] =
1678 wpa_s
->go_params
->freq_list
[i
];
1680 wpa_s
->p2p_group_common_freqs_num
= i
;
1684 static void p2p_config_write(struct wpa_supplicant
*wpa_s
)
1686 #ifndef CONFIG_NO_CONFIG_WRITE
1687 if (wpa_s
->parent
->conf
->update_config
&&
1688 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
1689 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1690 #endif /* CONFIG_NO_CONFIG_WRITE */
1694 static void p2p_go_configured(void *ctx
, void *data
)
1696 struct wpa_supplicant
*wpa_s
= ctx
;
1697 struct p2p_go_neg_results
*params
= data
;
1698 struct wpa_ssid
*ssid
;
1699 int network_id
= -1;
1701 p2p_go_save_group_common_freqs(wpa_s
, params
);
1702 p2p_go_dump_common_freqs(wpa_s
);
1704 ssid
= wpa_s
->current_ssid
;
1705 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GO
) {
1706 wpa_printf(MSG_DEBUG
, "P2P: Group setup without provisioning");
1707 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
1708 wpa_s
->global
->p2p_group_formation
= NULL
;
1709 wpas_p2p_group_started(wpa_s
, 1, ssid
, ssid
->frequency
,
1710 params
->passphrase
[0] == '\0' ?
1713 wpa_s
->global
->p2p_dev_addr
,
1714 params
->persistent_group
, "");
1715 wpa_s
->group_formation_reported
= 1;
1717 if (wpa_s
->parent
->p2ps_method_config_any
) {
1718 if (is_zero_ether_addr(wpa_s
->parent
->p2ps_join_addr
)) {
1719 wpa_dbg(wpa_s
, MSG_DEBUG
,
1720 "P2PS: Setting default PIN for ANY");
1721 wpa_supplicant_ap_wps_pin(wpa_s
, NULL
,
1722 "12345670", NULL
, 0,
1725 wpa_dbg(wpa_s
, MSG_DEBUG
,
1726 "P2PS: Setting default PIN for " MACSTR
,
1727 MAC2STR(wpa_s
->parent
->p2ps_join_addr
));
1728 wpa_supplicant_ap_wps_pin(
1729 wpa_s
, wpa_s
->parent
->p2ps_join_addr
,
1730 "12345670", NULL
, 0, 0);
1732 wpa_s
->parent
->p2ps_method_config_any
= 0;
1735 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1736 if (params
->persistent_group
) {
1737 network_id
= wpas_p2p_store_persistent_group(
1738 wpa_s
->parent
, ssid
,
1739 wpa_s
->global
->p2p_dev_addr
);
1740 wpas_p2p_add_psk_list(wpa_s
, ssid
);
1743 network_id
= ssid
->id
;
1744 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1745 wpas_p2p_cross_connect_setup(wpa_s
);
1746 wpas_p2p_set_group_idle_timeout(wpa_s
);
1748 if (wpa_s
->p2p_first_connection_timeout
) {
1749 wpa_dbg(wpa_s
, MSG_DEBUG
,
1750 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1751 wpa_s
->p2p_first_connection_timeout
);
1752 wpa_s
->p2p_go_group_formation_completed
= 0;
1753 wpa_s
->global
->p2p_group_formation
= wpa_s
;
1754 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1755 wpa_s
->parent
, NULL
);
1756 eloop_register_timeout(
1757 wpa_s
->p2p_first_connection_timeout
, 0,
1758 wpas_p2p_group_formation_timeout
,
1759 wpa_s
->parent
, NULL
);
1765 wpa_printf(MSG_DEBUG
, "P2P: Setting up WPS for GO provisioning");
1766 if (wpa_supplicant_ap_mac_addr_filter(wpa_s
,
1767 params
->peer_interface_addr
)) {
1768 wpa_printf(MSG_DEBUG
, "P2P: Failed to setup MAC address "
1772 if (params
->wps_method
== WPS_PBC
) {
1773 wpa_supplicant_ap_wps_pbc(wpa_s
, params
->peer_interface_addr
,
1774 params
->peer_device_addr
);
1775 #ifdef CONFIG_WPS_NFC
1776 } else if (params
->wps_method
== WPS_NFC
) {
1777 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
1778 DEV_PW_NFC_CONNECTION_HANDOVER
&&
1779 !wpa_s
->parent
->p2p_oob_dev_pw
) {
1780 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
1783 wpas_ap_wps_add_nfc_pw(
1784 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
1785 wpa_s
->parent
->p2p_oob_dev_pw
,
1786 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
1787 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
1788 #endif /* CONFIG_WPS_NFC */
1789 } else if (wpa_s
->p2p_pin
[0])
1790 wpa_supplicant_ap_wps_pin(wpa_s
, params
->peer_interface_addr
,
1791 wpa_s
->p2p_pin
, NULL
, 0, 0);
1792 os_free(wpa_s
->go_params
);
1793 wpa_s
->go_params
= NULL
;
1797 static void wpas_start_wps_go(struct wpa_supplicant
*wpa_s
,
1798 struct p2p_go_neg_results
*params
,
1799 int group_formation
)
1801 struct wpa_ssid
*ssid
;
1803 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Starting GO");
1804 if (wpas_copy_go_neg_results(wpa_s
, params
) < 0) {
1805 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not copy GO Negotiation "
1810 ssid
= wpa_config_add_network(wpa_s
->conf
);
1812 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not add network for GO");
1816 wpa_s
->show_group_started
= 0;
1817 wpa_s
->p2p_go_group_formation_completed
= 0;
1818 wpa_s
->group_formation_reported
= 0;
1819 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
1821 wpa_config_set_network_defaults(ssid
);
1822 ssid
->temporary
= 1;
1823 ssid
->p2p_group
= 1;
1824 ssid
->p2p_persistent_group
= params
->persistent_group
;
1825 ssid
->mode
= group_formation
? WPAS_MODE_P2P_GROUP_FORMATION
:
1827 ssid
->frequency
= params
->freq
;
1828 ssid
->ht40
= params
->ht40
;
1829 ssid
->vht
= params
->vht
;
1830 ssid
->ssid
= os_zalloc(params
->ssid_len
+ 1);
1832 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
1833 ssid
->ssid_len
= params
->ssid_len
;
1835 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
1836 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1837 ssid
->proto
= WPA_PROTO_RSN
;
1838 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1839 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
1840 if (params
->freq
> 56160) {
1842 * Enable GCMP instead of CCMP as pairwise_cipher and
1843 * group_cipher in 60 GHz.
1845 ssid
->pairwise_cipher
= WPA_CIPHER_GCMP
;
1846 ssid
->group_cipher
= WPA_CIPHER_GCMP
;
1848 if (os_strlen(params
->passphrase
) > 0) {
1849 ssid
->passphrase
= os_strdup(params
->passphrase
);
1850 if (ssid
->passphrase
== NULL
) {
1851 wpa_msg_global(wpa_s
, MSG_ERROR
,
1852 "P2P: Failed to copy passphrase for GO");
1853 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1857 ssid
->passphrase
= NULL
;
1858 ssid
->psk_set
= params
->psk_set
;
1860 os_memcpy(ssid
->psk
, params
->psk
, sizeof(ssid
->psk
));
1861 else if (ssid
->passphrase
)
1862 wpa_config_update_psk(ssid
);
1863 ssid
->ap_max_inactivity
= wpa_s
->parent
->conf
->p2p_go_max_inactivity
;
1865 wpa_s
->ap_configured_cb
= p2p_go_configured
;
1866 wpa_s
->ap_configured_cb_ctx
= wpa_s
;
1867 wpa_s
->ap_configured_cb_data
= wpa_s
->go_params
;
1868 wpa_s
->scan_req
= NORMAL_SCAN_REQ
;
1869 wpa_s
->connect_without_scan
= ssid
;
1870 wpa_s
->reassociate
= 1;
1871 wpa_s
->disconnected
= 0;
1872 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Request scan (that will be skipped) to "
1874 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1878 static void wpas_p2p_clone_config(struct wpa_supplicant
*dst
,
1879 const struct wpa_supplicant
*src
)
1881 struct wpa_config
*d
;
1882 const struct wpa_config
*s
;
1887 #define C(n) if (s->n) d->n = os_strdup(s->n)
1896 os_memcpy(d
->device_type
, s
->device_type
, WPS_DEV_TYPE_LEN
);
1897 os_memcpy(d
->sec_device_type
, s
->sec_device_type
,
1898 sizeof(d
->sec_device_type
));
1899 d
->num_sec_device_types
= s
->num_sec_device_types
;
1901 d
->p2p_group_idle
= s
->p2p_group_idle
;
1902 d
->p2p_go_freq_change_policy
= s
->p2p_go_freq_change_policy
;
1903 d
->p2p_intra_bss
= s
->p2p_intra_bss
;
1904 d
->persistent_reconnect
= s
->persistent_reconnect
;
1905 d
->max_num_sta
= s
->max_num_sta
;
1906 d
->pbc_in_m1
= s
->pbc_in_m1
;
1907 d
->ignore_old_scan_res
= s
->ignore_old_scan_res
;
1908 d
->beacon_int
= s
->beacon_int
;
1909 d
->dtim_period
= s
->dtim_period
;
1910 d
->p2p_go_ctwindow
= s
->p2p_go_ctwindow
;
1911 d
->disassoc_low_ack
= s
->disassoc_low_ack
;
1912 d
->disable_scan_offload
= s
->disable_scan_offload
;
1913 d
->passive_scan
= s
->passive_scan
;
1915 if (s
->wps_nfc_dh_privkey
&& s
->wps_nfc_dh_pubkey
) {
1916 d
->wps_nfc_dh_privkey
= wpabuf_dup(s
->wps_nfc_dh_privkey
);
1917 d
->wps_nfc_dh_pubkey
= wpabuf_dup(s
->wps_nfc_dh_pubkey
);
1919 d
->p2p_cli_probe
= s
->p2p_cli_probe
;
1923 static void wpas_p2p_get_group_ifname(struct wpa_supplicant
*wpa_s
,
1924 char *ifname
, size_t len
)
1926 char *ifname_ptr
= wpa_s
->ifname
;
1928 if (os_strncmp(wpa_s
->ifname
, P2P_MGMT_DEVICE_PREFIX
,
1929 os_strlen(P2P_MGMT_DEVICE_PREFIX
)) == 0) {
1930 ifname_ptr
= os_strrchr(wpa_s
->ifname
, '-') + 1;
1933 os_snprintf(ifname
, len
, "p2p-%s-%d", ifname_ptr
, wpa_s
->p2p_group_idx
);
1934 if (os_strlen(ifname
) >= IFNAMSIZ
&&
1935 os_strlen(wpa_s
->ifname
) < IFNAMSIZ
) {
1938 /* Try to avoid going over the IFNAMSIZ length limit */
1939 res
= os_snprintf(ifname
, len
, "p2p-%d", wpa_s
->p2p_group_idx
);
1940 if (os_snprintf_error(len
, res
) && len
)
1941 ifname
[len
- 1] = '\0';
1946 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
1947 enum wpa_driver_if_type type
)
1949 char ifname
[120], force_ifname
[120];
1951 if (wpa_s
->pending_interface_name
[0]) {
1952 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual interface exists "
1953 "- skip creation of a new one");
1954 if (is_zero_ether_addr(wpa_s
->pending_interface_addr
)) {
1955 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual address "
1956 "unknown?! ifname='%s'",
1957 wpa_s
->pending_interface_name
);
1963 wpas_p2p_get_group_ifname(wpa_s
, ifname
, sizeof(ifname
));
1964 force_ifname
[0] = '\0';
1966 wpa_printf(MSG_DEBUG
, "P2P: Create a new interface %s for the group",
1968 wpa_s
->p2p_group_idx
++;
1970 wpa_s
->pending_interface_type
= type
;
1971 if (wpa_drv_if_add(wpa_s
, type
, ifname
, NULL
, NULL
, force_ifname
,
1972 wpa_s
->pending_interface_addr
, NULL
) < 0) {
1973 wpa_printf(MSG_ERROR
, "P2P: Failed to create new group "
1978 if (force_ifname
[0]) {
1979 wpa_printf(MSG_DEBUG
, "P2P: Driver forced interface name %s",
1981 os_strlcpy(wpa_s
->pending_interface_name
, force_ifname
,
1982 sizeof(wpa_s
->pending_interface_name
));
1984 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
1985 sizeof(wpa_s
->pending_interface_name
));
1986 wpa_printf(MSG_DEBUG
, "P2P: Created pending virtual interface %s addr "
1987 MACSTR
, wpa_s
->pending_interface_name
,
1988 MAC2STR(wpa_s
->pending_interface_addr
));
1994 static void wpas_p2p_remove_pending_group_interface(
1995 struct wpa_supplicant
*wpa_s
)
1997 if (!wpa_s
->pending_interface_name
[0] ||
1998 is_zero_ether_addr(wpa_s
->pending_interface_addr
))
1999 return; /* No pending virtual interface */
2001 wpa_printf(MSG_DEBUG
, "P2P: Removing pending group interface %s",
2002 wpa_s
->pending_interface_name
);
2003 wpa_drv_if_remove(wpa_s
, wpa_s
->pending_interface_type
,
2004 wpa_s
->pending_interface_name
);
2005 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
2006 wpa_s
->pending_interface_name
[0] = '\0';
2007 wpa_s
->global
->pending_group_iface_for_p2ps
= 0;
2011 static struct wpa_supplicant
*
2012 wpas_p2p_init_group_interface(struct wpa_supplicant
*wpa_s
, int go
)
2014 struct wpa_interface iface
;
2015 struct wpa_supplicant
*group_wpa_s
;
2017 if (!wpa_s
->pending_interface_name
[0]) {
2018 wpa_printf(MSG_ERROR
, "P2P: No pending group interface");
2019 if (!wpas_p2p_create_iface(wpa_s
))
2022 * Something has forced us to remove the pending interface; try
2023 * to create a new one and hope for the best that we will get
2024 * the same local address.
2026 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
2027 WPA_IF_P2P_CLIENT
) < 0)
2031 os_memset(&iface
, 0, sizeof(iface
));
2032 iface
.ifname
= wpa_s
->pending_interface_name
;
2033 iface
.driver
= wpa_s
->driver
->name
;
2034 if (wpa_s
->conf
->ctrl_interface
== NULL
&&
2035 wpa_s
->parent
!= wpa_s
&&
2037 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
))
2038 iface
.ctrl_interface
= wpa_s
->parent
->conf
->ctrl_interface
;
2040 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
2041 iface
.driver_param
= wpa_s
->conf
->driver_param
;
2042 group_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
, wpa_s
);
2043 if (group_wpa_s
== NULL
) {
2044 wpa_printf(MSG_ERROR
, "P2P: Failed to create new "
2045 "wpa_supplicant interface");
2048 wpa_s
->pending_interface_name
[0] = '\0';
2049 group_wpa_s
->p2p_group_interface
= go
? P2P_GROUP_INTERFACE_GO
:
2050 P2P_GROUP_INTERFACE_CLIENT
;
2051 wpa_s
->global
->p2p_group_formation
= group_wpa_s
;
2052 wpa_s
->global
->pending_group_iface_for_p2ps
= 0;
2054 wpas_p2p_clone_config(group_wpa_s
, wpa_s
);
2060 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
2063 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
2064 wpa_printf(MSG_DEBUG
, "P2P: Group Formation timed out");
2065 wpas_p2p_group_formation_failed(wpa_s
, 0);
2069 static void wpas_p2p_group_formation_failed(struct wpa_supplicant
*wpa_s
,
2070 int already_deleted
)
2072 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2073 wpa_s
->parent
, NULL
);
2074 if (wpa_s
->global
->p2p
)
2075 p2p_group_formation_failed(wpa_s
->global
->p2p
);
2076 wpas_group_formation_completed(wpa_s
, 0, already_deleted
);
2080 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant
*wpa_s
)
2082 wpa_printf(MSG_DEBUG
, "P2P: Reject group formation due to WPS provisioning failure");
2083 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2084 wpa_s
->parent
, NULL
);
2085 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
2086 wpa_s
->parent
, NULL
);
2087 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
2091 void wpas_p2p_ap_setup_failed(struct wpa_supplicant
*wpa_s
)
2093 if (wpa_s
->global
->p2p_group_formation
!= wpa_s
)
2095 /* Speed up group formation timeout since this cannot succeed */
2096 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2097 wpa_s
->parent
, NULL
);
2098 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
2099 wpa_s
->parent
, NULL
);
2103 static void wpas_go_neg_completed(void *ctx
, struct p2p_go_neg_results
*res
)
2105 struct wpa_supplicant
*wpa_s
= ctx
;
2107 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
2108 wpa_drv_cancel_remain_on_channel(wpa_s
);
2109 wpa_s
->off_channel_freq
= 0;
2110 wpa_s
->roc_waiting_drv_freq
= 0;
2114 wpa_msg_global(wpa_s
, MSG_INFO
,
2115 P2P_EVENT_GO_NEG_FAILURE
"status=%d",
2117 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
2118 wpas_p2p_remove_pending_group_interface(wpa_s
);
2122 if (!res
->role_go
) {
2123 /* Inform driver of the operating channel of GO. */
2124 wpa_drv_set_prob_oper_freq(wpa_s
, res
->freq
);
2127 if (wpa_s
->p2p_go_ht40
)
2129 if (wpa_s
->p2p_go_vht
)
2132 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_SUCCESS
"role=%s "
2133 "freq=%d ht40=%d peer_dev=" MACSTR
" peer_iface=" MACSTR
2135 res
->role_go
? "GO" : "client", res
->freq
, res
->ht40
,
2136 MAC2STR(res
->peer_device_addr
),
2137 MAC2STR(res
->peer_interface_addr
),
2138 p2p_wps_method_text(res
->wps_method
));
2139 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
2141 if (res
->role_go
&& wpa_s
->p2p_persistent_id
>= 0) {
2142 struct wpa_ssid
*ssid
;
2143 ssid
= wpa_config_get_network(wpa_s
->conf
,
2144 wpa_s
->p2p_persistent_id
);
2145 if (ssid
&& ssid
->disabled
== 2 &&
2146 ssid
->mode
== WPAS_MODE_P2P_GO
&& ssid
->passphrase
) {
2147 size_t len
= os_strlen(ssid
->passphrase
);
2148 wpa_printf(MSG_DEBUG
, "P2P: Override passphrase based "
2149 "on requested persistent group");
2150 os_memcpy(res
->passphrase
, ssid
->passphrase
, len
);
2151 res
->passphrase
[len
] = '\0';
2155 if (wpa_s
->create_p2p_iface
) {
2156 struct wpa_supplicant
*group_wpa_s
=
2157 wpas_p2p_init_group_interface(wpa_s
, res
->role_go
);
2158 if (group_wpa_s
== NULL
) {
2159 wpas_p2p_remove_pending_group_interface(wpa_s
);
2160 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
,
2162 wpas_p2p_group_formation_failed(wpa_s
, 1);
2165 if (group_wpa_s
!= wpa_s
) {
2166 os_memcpy(group_wpa_s
->p2p_pin
, wpa_s
->p2p_pin
,
2167 sizeof(group_wpa_s
->p2p_pin
));
2168 group_wpa_s
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
2170 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
2171 wpa_s
->pending_interface_name
[0] = '\0';
2172 group_wpa_s
->p2p_in_provisioning
= 1;
2175 wpas_start_wps_go(group_wpa_s
, res
, 1);
2177 wpas_start_wps_enrollee(group_wpa_s
, res
);
2179 wpa_s
->p2p_in_provisioning
= 1;
2180 wpa_s
->global
->p2p_group_formation
= wpa_s
;
2183 wpas_start_wps_go(wpa_s
, res
, 1);
2185 wpas_start_wps_enrollee(ctx
, res
);
2188 wpa_s
->p2p_long_listen
= 0;
2189 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
2191 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
2192 eloop_register_timeout(15 + res
->peer_config_timeout
/ 100,
2193 (res
->peer_config_timeout
% 100) * 10000,
2194 wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
2198 static void wpas_go_neg_req_rx(void *ctx
, const u8
*src
, u16 dev_passwd_id
,
2201 struct wpa_supplicant
*wpa_s
= ctx
;
2202 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_REQUEST MACSTR
2203 " dev_passwd_id=%u go_intent=%u", MAC2STR(src
),
2204 dev_passwd_id
, go_intent
);
2206 wpas_notify_p2p_go_neg_req(wpa_s
, src
, dev_passwd_id
, go_intent
);
2210 static void wpas_dev_found(void *ctx
, const u8
*addr
,
2211 const struct p2p_peer_info
*info
,
2214 #ifndef CONFIG_NO_STDOUT_DEBUG
2215 struct wpa_supplicant
*wpa_s
= ctx
;
2216 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2217 char *wfd_dev_info_hex
= NULL
;
2219 #ifdef CONFIG_WIFI_DISPLAY
2220 wfd_dev_info_hex
= wifi_display_subelem_hex(info
->wfd_subelems
,
2221 WFD_SUBELEM_DEVICE_INFO
);
2222 #endif /* CONFIG_WIFI_DISPLAY */
2224 if (info
->p2ps_instance
) {
2226 const u8
*buf
= wpabuf_head(info
->p2ps_instance
);
2227 size_t len
= wpabuf_len(info
->p2ps_instance
);
2234 if (len
< 4 + 2 + 1)
2236 id
= WPA_GET_LE32(buf
);
2238 methods
= WPA_GET_BE16(buf
);
2241 if (str_len
> len
- 4 - 2 - 1)
2243 os_memcpy(str
, buf
, str_len
);
2244 str
[str_len
] = '\0';
2246 len
-= str_len
+ sizeof(u32
) + sizeof(u16
) + sizeof(u8
);
2248 wpa_msg_global(wpa_s
, MSG_INFO
,
2249 P2P_EVENT_DEVICE_FOUND MACSTR
2250 " p2p_dev_addr=" MACSTR
2251 " pri_dev_type=%s name='%s'"
2252 " config_methods=0x%x"
2255 " adv_id=%x asp_svc=%s%s",
2257 MAC2STR(info
->p2p_device_addr
),
2258 wps_dev_type_bin2str(
2260 devtype
, sizeof(devtype
)),
2261 info
->device_name
, methods
,
2262 info
->dev_capab
, info
->group_capab
,
2264 info
->vendor_elems
?
2265 " vendor_elems=1" : "");
2270 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_FOUND MACSTR
2271 " p2p_dev_addr=" MACSTR
2272 " pri_dev_type=%s name='%s' config_methods=0x%x "
2273 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2274 MAC2STR(addr
), MAC2STR(info
->p2p_device_addr
),
2275 wps_dev_type_bin2str(info
->pri_dev_type
, devtype
,
2277 info
->device_name
, info
->config_methods
,
2278 info
->dev_capab
, info
->group_capab
,
2279 wfd_dev_info_hex
? " wfd_dev_info=0x" : "",
2280 wfd_dev_info_hex
? wfd_dev_info_hex
: "",
2281 info
->vendor_elems
? " vendor_elems=1" : "",
2285 os_free(wfd_dev_info_hex
);
2286 #endif /* CONFIG_NO_STDOUT_DEBUG */
2288 wpas_notify_p2p_device_found(ctx
, info
->p2p_device_addr
, new_device
);
2292 static void wpas_dev_lost(void *ctx
, const u8
*dev_addr
)
2294 struct wpa_supplicant
*wpa_s
= ctx
;
2296 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_LOST
2297 "p2p_dev_addr=" MACSTR
, MAC2STR(dev_addr
));
2299 wpas_notify_p2p_device_lost(wpa_s
, dev_addr
);
2303 static void wpas_find_stopped(void *ctx
)
2305 struct wpa_supplicant
*wpa_s
= ctx
;
2306 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_FIND_STOPPED
);
2307 wpas_notify_p2p_find_stopped(wpa_s
);
2311 struct wpas_p2p_listen_work
{
2313 unsigned int duration
;
2314 struct wpabuf
*probe_resp_ie
;
2318 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work
*lwork
)
2322 wpabuf_free(lwork
->probe_resp_ie
);
2327 static void wpas_p2p_listen_work_done(struct wpa_supplicant
*wpa_s
)
2329 struct wpas_p2p_listen_work
*lwork
;
2331 if (!wpa_s
->p2p_listen_work
)
2334 lwork
= wpa_s
->p2p_listen_work
->ctx
;
2335 wpas_p2p_listen_work_free(lwork
);
2336 radio_work_done(wpa_s
->p2p_listen_work
);
2337 wpa_s
->p2p_listen_work
= NULL
;
2341 static void wpas_start_listen_cb(struct wpa_radio_work
*work
, int deinit
)
2343 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
2344 struct wpas_p2p_listen_work
*lwork
= work
->ctx
;
2345 unsigned int duration
;
2348 if (work
->started
) {
2349 wpa_s
->p2p_listen_work
= NULL
;
2350 wpas_stop_listen(wpa_s
);
2352 wpas_p2p_listen_work_free(lwork
);
2356 wpa_s
->p2p_listen_work
= work
;
2358 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, lwork
->probe_resp_ie
, NULL
);
2360 if (wpa_drv_probe_req_report(wpa_s
, 1) < 0) {
2361 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver to "
2362 "report received Probe Request frames");
2363 wpas_p2p_listen_work_done(wpa_s
);
2367 wpa_s
->pending_listen_freq
= lwork
->freq
;
2368 wpa_s
->pending_listen_duration
= lwork
->duration
;
2370 duration
= lwork
->duration
;
2371 #ifdef CONFIG_TESTING_OPTIONS
2372 if (wpa_s
->extra_roc_dur
) {
2373 wpa_printf(MSG_DEBUG
, "TESTING: Increase ROC duration %u -> %u",
2374 duration
, duration
+ wpa_s
->extra_roc_dur
);
2375 duration
+= wpa_s
->extra_roc_dur
;
2377 #endif /* CONFIG_TESTING_OPTIONS */
2379 if (wpa_drv_remain_on_channel(wpa_s
, lwork
->freq
, duration
) < 0) {
2380 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver "
2381 "to remain on channel (%u MHz) for Listen "
2382 "state", lwork
->freq
);
2383 wpas_p2p_listen_work_done(wpa_s
);
2384 wpa_s
->pending_listen_freq
= 0;
2387 wpa_s
->off_channel_freq
= 0;
2388 wpa_s
->roc_waiting_drv_freq
= lwork
->freq
;
2392 static int wpas_start_listen(void *ctx
, unsigned int freq
,
2393 unsigned int duration
,
2394 const struct wpabuf
*probe_resp_ie
)
2396 struct wpa_supplicant
*wpa_s
= ctx
;
2397 struct wpas_p2p_listen_work
*lwork
;
2399 if (wpa_s
->p2p_listen_work
) {
2400 wpa_printf(MSG_DEBUG
, "P2P: Reject start_listen since p2p_listen_work already exists");
2404 lwork
= os_zalloc(sizeof(*lwork
));
2408 lwork
->duration
= duration
;
2409 if (probe_resp_ie
) {
2410 lwork
->probe_resp_ie
= wpabuf_dup(probe_resp_ie
);
2411 if (lwork
->probe_resp_ie
== NULL
) {
2412 wpas_p2p_listen_work_free(lwork
);
2417 if (radio_add_work(wpa_s
, freq
, "p2p-listen", 0, wpas_start_listen_cb
,
2419 wpas_p2p_listen_work_free(lwork
);
2427 static void wpas_stop_listen(void *ctx
)
2429 struct wpa_supplicant
*wpa_s
= ctx
;
2430 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
2431 wpa_drv_cancel_remain_on_channel(wpa_s
);
2432 wpa_s
->off_channel_freq
= 0;
2433 wpa_s
->roc_waiting_drv_freq
= 0;
2435 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, NULL
, NULL
);
2438 * Don't cancel Probe Request RX reporting for a connected P2P Client
2439 * handling Probe Request frames.
2441 if (!wpa_s
->p2p_cli_probe
)
2442 wpa_drv_probe_req_report(wpa_s
, 0);
2444 wpas_p2p_listen_work_done(wpa_s
);
2448 static int wpas_send_probe_resp(void *ctx
, const struct wpabuf
*buf
,
2451 struct wpa_supplicant
*wpa_s
= ctx
;
2452 return wpa_drv_send_mlme(wpa_s
, wpabuf_head(buf
), wpabuf_len(buf
), 1,
2457 static void wpas_prov_disc_local_display(struct wpa_supplicant
*wpa_s
,
2458 const u8
*peer
, const char *params
,
2459 unsigned int generated_pin
)
2461 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2462 " %08d%s", MAC2STR(peer
), generated_pin
, params
);
2466 static void wpas_prov_disc_local_keypad(struct wpa_supplicant
*wpa_s
,
2467 const u8
*peer
, const char *params
)
2469 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2470 "%s", MAC2STR(peer
), params
);
2474 static void wpas_prov_disc_req(void *ctx
, const u8
*peer
, u16 config_methods
,
2475 const u8
*dev_addr
, const u8
*pri_dev_type
,
2476 const char *dev_name
, u16 supp_config_methods
,
2477 u8 dev_capab
, u8 group_capab
, const u8
*group_id
,
2478 size_t group_id_len
)
2480 struct wpa_supplicant
*wpa_s
= ctx
;
2481 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2483 u8 empty_dev_type
[8];
2484 unsigned int generated_pin
= 0;
2485 struct wpa_supplicant
*group
= NULL
;
2489 for (group
= wpa_s
->global
->ifaces
; group
; group
= group
->next
)
2491 struct wpa_ssid
*s
= group
->current_ssid
;
2493 s
->mode
== WPAS_MODE_P2P_GO
&&
2494 group_id_len
- ETH_ALEN
== s
->ssid_len
&&
2495 os_memcmp(group_id
+ ETH_ALEN
, s
->ssid
,
2501 if (pri_dev_type
== NULL
) {
2502 os_memset(empty_dev_type
, 0, sizeof(empty_dev_type
));
2503 pri_dev_type
= empty_dev_type
;
2505 res
= os_snprintf(params
, sizeof(params
), " p2p_dev_addr=" MACSTR
2506 " pri_dev_type=%s name='%s' config_methods=0x%x "
2507 "dev_capab=0x%x group_capab=0x%x%s%s",
2509 wps_dev_type_bin2str(pri_dev_type
, devtype
,
2511 dev_name
, supp_config_methods
, dev_capab
, group_capab
,
2512 group
? " group=" : "",
2513 group
? group
->ifname
: "");
2514 if (os_snprintf_error(sizeof(params
), res
))
2515 wpa_printf(MSG_DEBUG
, "P2P: PD Request event truncated");
2516 params
[sizeof(params
) - 1] = '\0';
2518 if (config_methods
& WPS_CONFIG_DISPLAY
) {
2519 generated_pin
= wps_generate_pin();
2520 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2522 } else if (config_methods
& WPS_CONFIG_KEYPAD
)
2523 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2524 else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2525 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_REQ
2526 MACSTR
"%s", MAC2STR(peer
), params
);
2528 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 1 /* request */,
2529 P2P_PROV_DISC_SUCCESS
,
2530 config_methods
, generated_pin
);
2534 static void wpas_prov_disc_resp(void *ctx
, const u8
*peer
, u16 config_methods
)
2536 struct wpa_supplicant
*wpa_s
= ctx
;
2537 unsigned int generated_pin
= 0;
2540 if (wpa_s
->pending_pd_before_join
&&
2541 (os_memcmp(peer
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
2542 os_memcmp(peer
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0)) {
2543 wpa_s
->pending_pd_before_join
= 0;
2544 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2545 "join-existing-group operation");
2546 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
2550 if (wpa_s
->pending_pd_use
== AUTO_PD_JOIN
||
2551 wpa_s
->pending_pd_use
== AUTO_PD_GO_NEG
) {
2554 res
= os_snprintf(params
, sizeof(params
), " peer_go=%d",
2555 wpa_s
->pending_pd_use
== AUTO_PD_JOIN
);
2556 if (os_snprintf_error(sizeof(params
), res
))
2557 params
[sizeof(params
) - 1] = '\0';
2561 if (config_methods
& WPS_CONFIG_DISPLAY
)
2562 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2563 else if (config_methods
& WPS_CONFIG_KEYPAD
) {
2564 generated_pin
= wps_generate_pin();
2565 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2567 } else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2568 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_RESP
2569 MACSTR
"%s", MAC2STR(peer
), params
);
2571 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2572 P2P_PROV_DISC_SUCCESS
,
2573 config_methods
, generated_pin
);
2577 static void wpas_prov_disc_fail(void *ctx
, const u8
*peer
,
2578 enum p2p_prov_disc_status status
,
2579 u32 adv_id
, const u8
*adv_mac
,
2580 const char *deferred_session_resp
)
2582 struct wpa_supplicant
*wpa_s
= ctx
;
2584 if (wpa_s
->p2p_fallback_to_go_neg
) {
2585 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: PD for p2p_connect-auto "
2586 "failed - fall back to GO Negotiation");
2587 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
2588 P2P_EVENT_FALLBACK_TO_GO_NEG
2589 "reason=PD-failed");
2590 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
2594 if (status
== P2P_PROV_DISC_TIMEOUT_JOIN
) {
2595 wpa_s
->pending_pd_before_join
= 0;
2596 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2597 "join-existing-group operation (no ACK for PD "
2599 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
2603 if (adv_id
&& adv_mac
&& deferred_session_resp
) {
2604 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2605 " p2p_dev_addr=" MACSTR
" status=%d adv_id=%x"
2606 " deferred_session_resp='%s'",
2607 MAC2STR(peer
), status
, adv_id
,
2608 deferred_session_resp
);
2609 } else if (adv_id
&& adv_mac
) {
2610 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2611 " p2p_dev_addr=" MACSTR
" status=%d adv_id=%x",
2612 MAC2STR(peer
), status
, adv_id
);
2614 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2615 " p2p_dev_addr=" MACSTR
" status=%d",
2616 MAC2STR(peer
), status
);
2619 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2624 static int freq_included(struct wpa_supplicant
*wpa_s
,
2625 const struct p2p_channels
*channels
,
2628 if ((channels
== NULL
|| p2p_channels_includes_freq(channels
, freq
)) &&
2629 wpas_p2p_go_is_peer_freq(wpa_s
, freq
))
2635 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant
*wpa_s
)
2637 unsigned int num
= P2P_MAX_CHANNELS
;
2641 p2p_go_dump_common_freqs(wpa_s
);
2642 common_freqs
= os_calloc(num
, sizeof(int));
2646 ret
= p2p_group_get_common_freqs(wpa_s
->p2p_group
, common_freqs
, &num
);
2648 wpa_dbg(wpa_s
, MSG_DEBUG
,
2649 "P2P: Failed to get group common freqs");
2650 os_free(common_freqs
);
2654 os_free(wpa_s
->p2p_group_common_freqs
);
2655 wpa_s
->p2p_group_common_freqs
= common_freqs
;
2656 wpa_s
->p2p_group_common_freqs_num
= num
;
2657 p2p_go_dump_common_freqs(wpa_s
);
2662 * Check if the given frequency is one of the possible operating frequencies
2663 * set after the completion of the GO Negotiation.
2665 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant
*wpa_s
, int freq
)
2669 p2p_go_dump_common_freqs(wpa_s
);
2671 /* assume no restrictions */
2672 if (!wpa_s
->p2p_group_common_freqs_num
)
2675 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++) {
2676 if (wpa_s
->p2p_group_common_freqs
[i
] == freq
)
2684 * Pick the best frequency to use from all the currently used frequencies.
2686 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant
*wpa_s
,
2687 struct wpa_used_freq_data
*freqs
,
2692 /* find a candidate freq that is supported by P2P */
2693 for (c
= 0; c
< num
; c
++)
2694 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[c
].freq
))
2700 /* once we have a candidate, try to find a 'better' one */
2701 for (i
= c
+ 1; i
< num
; i
++) {
2702 if (!p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
2706 * 1. Infrastructure station interfaces have higher preference.
2707 * 2. P2P Clients have higher preference.
2710 if (freqs
[i
].flags
& WPA_FREQ_USED_BY_INFRA_STATION
) {
2715 if ((freqs
[i
].flags
& WPA_FREQ_USED_BY_P2P_CLIENT
))
2718 return freqs
[c
].freq
;
2722 static u8
wpas_invitation_process(void *ctx
, const u8
*sa
, const u8
*bssid
,
2723 const u8
*go_dev_addr
, const u8
*ssid
,
2724 size_t ssid_len
, int *go
, u8
*group_bssid
,
2725 int *force_freq
, int persistent_group
,
2726 const struct p2p_channels
*channels
,
2729 struct wpa_supplicant
*wpa_s
= ctx
;
2731 struct wpa_used_freq_data
*freqs
;
2732 struct wpa_supplicant
*grp
;
2735 if (!persistent_group
) {
2736 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2737 " to join an active group (SSID: %s)",
2738 MAC2STR(sa
), wpa_ssid_txt(ssid
, ssid_len
));
2739 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
2740 (os_memcmp(go_dev_addr
, wpa_s
->p2p_auth_invite
, ETH_ALEN
)
2742 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0)) {
2743 wpa_printf(MSG_DEBUG
, "P2P: Accept previously "
2744 "authorized invitation");
2748 #ifdef CONFIG_WPS_NFC
2749 if (dev_pw_id
>= 0 && wpa_s
->p2p_nfc_tag_enabled
&&
2750 dev_pw_id
== wpa_s
->p2p_oob_dev_pw_id
) {
2751 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation based on local enabled NFC Tag");
2752 wpa_s
->p2p_wps_method
= WPS_NFC
;
2753 wpa_s
->pending_join_wps_method
= WPS_NFC
;
2754 os_memcpy(wpa_s
->pending_join_dev_addr
,
2755 go_dev_addr
, ETH_ALEN
);
2756 os_memcpy(wpa_s
->pending_join_iface_addr
,
2760 #endif /* CONFIG_WPS_NFC */
2763 * Do not accept the invitation automatically; notify user and
2766 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2769 grp
= wpas_get_p2p_group(wpa_s
, ssid
, ssid_len
, go
);
2771 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation to already "
2772 "running persistent group");
2774 os_memcpy(group_bssid
, grp
->own_addr
, ETH_ALEN
);
2778 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
2779 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0) {
2780 wpa_printf(MSG_DEBUG
, "P2P: Accept previously initiated "
2781 "invitation to re-invoke a persistent group");
2782 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
2783 } else if (!wpa_s
->conf
->persistent_reconnect
)
2784 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2786 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2787 if (s
->disabled
== 2 &&
2788 os_memcmp(s
->bssid
, go_dev_addr
, ETH_ALEN
) == 0 &&
2789 s
->ssid_len
== ssid_len
&&
2790 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2795 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2796 " requested reinvocation of an unknown group",
2798 return P2P_SC_FAIL_UNKNOWN_GROUP
;
2801 if (s
->mode
== WPAS_MODE_P2P_GO
&& !wpas_p2p_create_iface(wpa_s
)) {
2803 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
) {
2804 wpa_printf(MSG_DEBUG
, "P2P: The only available "
2805 "interface is already in use - reject "
2807 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2809 os_memcpy(group_bssid
, wpa_s
->own_addr
, ETH_ALEN
);
2810 } else if (s
->mode
== WPAS_MODE_P2P_GO
) {
2812 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
) < 0)
2814 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
2815 "interface address for the group");
2816 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2818 os_memcpy(group_bssid
, wpa_s
->pending_interface_addr
,
2823 wpas_p2p_set_own_freq_preference(wpa_s
, 0);
2826 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
2827 sizeof(struct wpa_used_freq_data
));
2829 int num_channels
= wpa_s
->num_multichan_concurrent
;
2830 int num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
, num_channels
);
2831 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
2835 /* Get one of the frequencies currently in use */
2836 if (best_freq
> 0) {
2837 wpa_printf(MSG_DEBUG
, "P2P: Trying to prefer a channel already used by one of the interfaces");
2838 wpas_p2p_set_own_freq_preference(wpa_s
, best_freq
);
2840 if (wpa_s
->num_multichan_concurrent
< 2 ||
2841 wpas_p2p_num_unused_channels(wpa_s
) < 1) {
2842 wpa_printf(MSG_DEBUG
, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2843 *force_freq
= best_freq
;
2847 if (*force_freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
2848 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
2850 /* We are the client */
2851 wpa_printf(MSG_DEBUG
, "P2P: Peer was found to be "
2852 "running a GO but we are capable of MCC, "
2853 "figure out the best channel to use");
2855 } else if (!freq_included(wpa_s
, channels
, *force_freq
)) {
2856 /* We are the GO, and *force_freq is not in the
2858 wpa_printf(MSG_DEBUG
, "P2P: Forced GO freq %d MHz not "
2859 "in intersection but we are capable of MCC, "
2860 "figure out the best channel to use",
2866 return P2P_SC_SUCCESS
;
2870 static void wpas_invitation_received(void *ctx
, const u8
*sa
, const u8
*bssid
,
2871 const u8
*ssid
, size_t ssid_len
,
2872 const u8
*go_dev_addr
, u8 status
,
2875 struct wpa_supplicant
*wpa_s
= ctx
;
2878 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2879 if (s
->disabled
== 2 &&
2880 s
->ssid_len
== ssid_len
&&
2881 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2885 if (status
== P2P_SC_SUCCESS
) {
2886 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2887 " was accepted; op_freq=%d MHz, SSID=%s",
2888 MAC2STR(sa
), op_freq
, wpa_ssid_txt(ssid
, ssid_len
));
2890 int go
= s
->mode
== WPAS_MODE_P2P_GO
;
2891 wpas_p2p_group_add_persistent(
2892 wpa_s
, s
, go
, 0, op_freq
, 0, 0, NULL
,
2893 go
? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
: 0);
2895 wpa_s
->user_initiated_pd
= 0;
2896 wpas_p2p_join(wpa_s
, bssid
, go_dev_addr
,
2897 wpa_s
->p2p_wps_method
, 0, op_freq
,
2903 if (status
!= P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
2904 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2905 " was rejected (status %u)", MAC2STR(sa
), status
);
2911 wpa_msg_global(wpa_s
, MSG_INFO
,
2912 P2P_EVENT_INVITATION_RECEIVED
2913 "sa=" MACSTR
" go_dev_addr=" MACSTR
2914 " bssid=" MACSTR
" unknown-network",
2915 MAC2STR(sa
), MAC2STR(go_dev_addr
),
2918 wpa_msg_global(wpa_s
, MSG_INFO
,
2919 P2P_EVENT_INVITATION_RECEIVED
2920 "sa=" MACSTR
" go_dev_addr=" MACSTR
2922 MAC2STR(sa
), MAC2STR(go_dev_addr
));
2927 if (s
->mode
== WPAS_MODE_P2P_GO
&& op_freq
) {
2928 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
2929 "sa=" MACSTR
" persistent=%d freq=%d",
2930 MAC2STR(sa
), s
->id
, op_freq
);
2932 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
2933 "sa=" MACSTR
" persistent=%d",
2934 MAC2STR(sa
), s
->id
);
2939 static void wpas_remove_persistent_peer(struct wpa_supplicant
*wpa_s
,
2940 struct wpa_ssid
*ssid
,
2941 const u8
*peer
, int inv
)
2944 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
2949 for (i
= 0; ssid
->p2p_client_list
&& i
< ssid
->num_p2p_clients
; i
++) {
2950 if (os_memcmp(ssid
->p2p_client_list
+ i
* 2 * ETH_ALEN
, peer
,
2954 if (i
>= ssid
->num_p2p_clients
|| !ssid
->p2p_client_list
) {
2955 if (ssid
->mode
!= WPAS_MODE_P2P_GO
&&
2956 os_memcmp(ssid
->bssid
, peer
, ETH_ALEN
) == 0) {
2957 wpa_printf(MSG_DEBUG
, "P2P: Remove persistent group %d "
2958 "due to invitation result", ssid
->id
);
2959 wpas_notify_network_removed(wpa_s
, ssid
);
2960 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
2963 return; /* Peer not found in client list */
2966 wpa_printf(MSG_DEBUG
, "P2P: Remove peer " MACSTR
" from persistent "
2967 "group %d client list%s",
2968 MAC2STR(peer
), ssid
->id
,
2969 inv
? " due to invitation result" : "");
2970 os_memmove(ssid
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
2971 ssid
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
2972 (ssid
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
2973 ssid
->num_p2p_clients
--;
2974 if (p2p_wpa_s
->conf
->update_config
&&
2975 wpa_config_write(p2p_wpa_s
->confname
, p2p_wpa_s
->conf
))
2976 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
2980 static void wpas_remove_persistent_client(struct wpa_supplicant
*wpa_s
,
2983 struct wpa_ssid
*ssid
;
2985 wpa_s
= wpa_s
->global
->p2p_invite_group
;
2987 return; /* No known invitation group */
2988 ssid
= wpa_s
->current_ssid
;
2989 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
2990 !ssid
->p2p_persistent_group
)
2991 return; /* Not operating as a GO in persistent group */
2992 ssid
= wpas_p2p_get_persistent(wpa_s
->parent
, peer
,
2993 ssid
->ssid
, ssid
->ssid_len
);
2994 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
2998 static void wpas_invitation_result(void *ctx
, int status
, const u8
*bssid
,
2999 const struct p2p_channels
*channels
,
3000 const u8
*peer
, int neg_freq
,
3003 struct wpa_supplicant
*wpa_s
= ctx
;
3004 struct wpa_ssid
*ssid
;
3008 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3009 "status=%d " MACSTR
,
3010 status
, MAC2STR(bssid
));
3012 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3013 "status=%d ", status
);
3015 wpas_notify_p2p_invitation_result(wpa_s
, status
, bssid
);
3017 wpa_printf(MSG_DEBUG
, "P2P: Invitation result - status=%d peer=" MACSTR
,
3018 status
, MAC2STR(peer
));
3019 if (wpa_s
->pending_invite_ssid_id
== -1) {
3020 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
)
3021 wpas_remove_persistent_client(wpa_s
, peer
);
3022 return; /* Invitation to active group */
3025 if (status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
3026 wpa_printf(MSG_DEBUG
, "P2P: Waiting for peer to start another "
3027 "invitation exchange to indicate readiness for "
3031 if (status
!= P2P_SC_SUCCESS
) {
3032 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
) {
3033 ssid
= wpa_config_get_network(
3034 wpa_s
->conf
, wpa_s
->pending_invite_ssid_id
);
3035 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
3037 wpas_p2p_remove_pending_group_interface(wpa_s
);
3041 ssid
= wpa_config_get_network(wpa_s
->conf
,
3042 wpa_s
->pending_invite_ssid_id
);
3044 wpa_printf(MSG_ERROR
, "P2P: Could not find persistent group "
3045 "data matching with invitation");
3050 * The peer could have missed our ctrl::ack frame for Invitation
3051 * Response and continue retransmitting the frame. To reduce the
3052 * likelihood of the peer not getting successful TX status for the
3053 * Invitation Response frame, wait a short time here before starting
3054 * the persistent group so that we will remain on the current channel to
3055 * acknowledge any possible retransmission from the peer.
3057 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: 50 ms wait on current channel before "
3058 "starting persistent group");
3061 if (neg_freq
> 0 && ssid
->mode
== WPAS_MODE_P2P_GO
&&
3062 freq_included(wpa_s
, channels
, neg_freq
))
3064 else if (peer_oper_freq
> 0 && ssid
->mode
!= WPAS_MODE_P2P_GO
&&
3065 freq_included(wpa_s
, channels
, peer_oper_freq
))
3066 freq
= peer_oper_freq
;
3070 wpa_printf(MSG_DEBUG
, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3071 freq
, wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
3072 wpas_p2p_group_add_persistent(wpa_s
, ssid
,
3073 ssid
->mode
== WPAS_MODE_P2P_GO
,
3074 wpa_s
->p2p_persistent_go_freq
,
3076 wpa_s
->p2p_go_ht40
, wpa_s
->p2p_go_vht
,
3078 ssid
->mode
== WPAS_MODE_P2P_GO
?
3079 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
:
3084 static int wpas_p2p_disallowed_freq(struct wpa_global
*global
,
3087 if (freq_range_list_includes(&global
->p2p_go_avoid_freq
, freq
))
3089 return freq_range_list_includes(&global
->p2p_disallow_freq
, freq
);
3093 static void wpas_p2p_add_chan(struct p2p_reg_class
*reg
, u8 chan
)
3095 reg
->channel
[reg
->channels
] = chan
;
3100 static int wpas_p2p_default_channels(struct wpa_supplicant
*wpa_s
,
3101 struct p2p_channels
*chan
,
3102 struct p2p_channels
*cli_chan
)
3106 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3108 os_memset(cli_chan
, 0, sizeof(*cli_chan
));
3110 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for 2.4 GHz "
3113 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3114 chan
->reg_class
[cla
].reg_class
= 81;
3115 chan
->reg_class
[cla
].channels
= 0;
3116 for (i
= 0; i
< 11; i
++) {
3117 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 2412 + i
* 5))
3118 wpas_p2p_add_chan(&chan
->reg_class
[cla
], i
+ 1);
3120 if (chan
->reg_class
[cla
].channels
)
3123 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for lower 5 GHz "
3126 /* Operating class 115 - 5 GHz, channels 36-48 */
3127 chan
->reg_class
[cla
].reg_class
= 115;
3128 chan
->reg_class
[cla
].channels
= 0;
3129 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 36 * 5))
3130 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 36);
3131 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 40 * 5))
3132 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 40);
3133 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 44 * 5))
3134 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 44);
3135 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 48 * 5))
3136 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 48);
3137 if (chan
->reg_class
[cla
].channels
)
3140 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for higher 5 GHz "
3143 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3144 chan
->reg_class
[cla
].reg_class
= 124;
3145 chan
->reg_class
[cla
].channels
= 0;
3146 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 149 * 5))
3147 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 149);
3148 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 153 * 5))
3149 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 153);
3150 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 156 * 5))
3151 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 157);
3152 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 161 * 5))
3153 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 161);
3154 if (chan
->reg_class
[cla
].channels
)
3157 chan
->reg_classes
= cla
;
3162 static struct hostapd_hw_modes
* get_mode(struct hostapd_hw_modes
*modes
,
3164 enum hostapd_hw_mode mode
)
3168 for (i
= 0; i
< num_modes
; i
++) {
3169 if (modes
[i
].mode
== mode
)
3178 NOT_ALLOWED
, NO_IR
, ALLOWED
3181 static int has_channel(struct wpa_global
*global
,
3182 struct hostapd_hw_modes
*mode
, u8 chan
, int *flags
)
3187 freq
= (mode
->mode
== HOSTAPD_MODE_IEEE80211A
? 5000 : 2407) +
3189 if (wpas_p2p_disallowed_freq(global
, freq
))
3192 for (i
= 0; i
< mode
->num_channels
; i
++) {
3193 if (mode
->channels
[i
].chan
== chan
) {
3195 *flags
= mode
->channels
[i
].flag
;
3196 if (mode
->channels
[i
].flag
&
3197 (HOSTAPD_CHAN_DISABLED
|
3198 HOSTAPD_CHAN_RADAR
))
3200 if (mode
->channels
[i
].flag
& HOSTAPD_CHAN_NO_IR
)
3210 struct p2p_oper_class_map
{
3211 enum hostapd_hw_mode mode
;
3216 enum { BW20
, BW40PLUS
, BW40MINUS
, BW80
, BW2160
} bw
;
3219 static const struct p2p_oper_class_map op_class
[] = {
3220 { HOSTAPD_MODE_IEEE80211G
, 81, 1, 13, 1, BW20
},
3221 #if 0 /* Do not enable HT40 on 2 GHz for now */
3222 { HOSTAPD_MODE_IEEE80211G
, 83, 1, 9, 1, BW40PLUS
},
3223 { HOSTAPD_MODE_IEEE80211G
, 84, 5, 13, 1, BW40MINUS
},
3225 { HOSTAPD_MODE_IEEE80211A
, 115, 36, 48, 4, BW20
},
3226 { HOSTAPD_MODE_IEEE80211A
, 124, 149, 161, 4, BW20
},
3227 { HOSTAPD_MODE_IEEE80211A
, 125, 149, 169, 4, BW20
},
3228 { HOSTAPD_MODE_IEEE80211A
, 116, 36, 44, 8, BW40PLUS
},
3229 { HOSTAPD_MODE_IEEE80211A
, 117, 40, 48, 8, BW40MINUS
},
3230 { HOSTAPD_MODE_IEEE80211A
, 126, 149, 157, 8, BW40PLUS
},
3231 { HOSTAPD_MODE_IEEE80211A
, 127, 153, 161, 8, BW40MINUS
},
3234 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3235 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3236 * 80 MHz, but currently use the following definition for simplicity
3237 * (these center frequencies are not actual channels, which makes
3238 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3239 * removing invalid channels.
3241 { HOSTAPD_MODE_IEEE80211A
, 128, 36, 161, 4, BW80
},
3242 { HOSTAPD_MODE_IEEE80211AD
, 180, 1, 4, 1, BW2160
},
3243 { -1, 0, 0, 0, 0, BW20
}
3247 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant
*wpa_s
,
3248 struct hostapd_hw_modes
*mode
,
3251 u8 center_channels
[] = { 42, 58, 106, 122, 138, 155 };
3254 if (mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
3257 for (i
= 0; i
< ARRAY_SIZE(center_channels
); i
++)
3259 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3260 * so the center channel is 6 channels away from the start/end.
3262 if (channel
>= center_channels
[i
] - 6 &&
3263 channel
<= center_channels
[i
] + 6)
3264 return center_channels
[i
];
3270 static enum chan_allowed
wpas_p2p_verify_80mhz(struct wpa_supplicant
*wpa_s
,
3271 struct hostapd_hw_modes
*mode
,
3276 enum chan_allowed res
, ret
= ALLOWED
;
3278 center_chan
= wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3281 if (center_chan
>= 58 && center_chan
<= 138)
3282 return NOT_ALLOWED
; /* Do not allow DFS channels for P2P */
3284 /* check all the channels are available */
3285 for (i
= 0; i
< 4; i
++) {
3286 int adj_chan
= center_chan
- 6 + i
* 4;
3288 res
= has_channel(wpa_s
->global
, mode
, adj_chan
, &flags
);
3289 if (res
== NOT_ALLOWED
)
3294 if (i
== 0 && !(flags
& HOSTAPD_CHAN_VHT_10_70
))
3296 if (i
== 1 && !(flags
& HOSTAPD_CHAN_VHT_30_50
))
3298 if (i
== 2 && !(flags
& HOSTAPD_CHAN_VHT_50_30
))
3300 if (i
== 3 && !(flags
& HOSTAPD_CHAN_VHT_70_10
))
3308 static enum chan_allowed
wpas_p2p_verify_channel(struct wpa_supplicant
*wpa_s
,
3309 struct hostapd_hw_modes
*mode
,
3313 enum chan_allowed res
, res2
;
3315 res2
= res
= has_channel(wpa_s
->global
, mode
, channel
, &flag
);
3316 if (bw
== BW40MINUS
) {
3317 if (!(flag
& HOSTAPD_CHAN_HT40MINUS
))
3319 res2
= has_channel(wpa_s
->global
, mode
, channel
- 4, NULL
);
3320 } else if (bw
== BW40PLUS
) {
3321 if (!(flag
& HOSTAPD_CHAN_HT40PLUS
))
3323 res2
= has_channel(wpa_s
->global
, mode
, channel
+ 4, NULL
);
3324 } else if (bw
== BW80
) {
3325 res2
= wpas_p2p_verify_80mhz(wpa_s
, mode
, channel
, bw
);
3328 if (res
== NOT_ALLOWED
|| res2
== NOT_ALLOWED
)
3330 if (res
== NO_IR
|| res2
== NO_IR
)
3336 static int wpas_p2p_setup_channels(struct wpa_supplicant
*wpa_s
,
3337 struct p2p_channels
*chan
,
3338 struct p2p_channels
*cli_chan
)
3340 struct hostapd_hw_modes
*mode
;
3341 int cla
, op
, cli_cla
;
3343 if (wpa_s
->hw
.modes
== NULL
) {
3344 wpa_printf(MSG_DEBUG
, "P2P: Driver did not support fetching "
3345 "of all supported channels; assume dualband "
3347 return wpas_p2p_default_channels(wpa_s
, chan
, cli_chan
);
3352 for (op
= 0; op_class
[op
].op_class
; op
++) {
3353 const struct p2p_oper_class_map
*o
= &op_class
[op
];
3355 struct p2p_reg_class
*reg
= NULL
, *cli_reg
= NULL
;
3357 mode
= get_mode(wpa_s
->hw
.modes
, wpa_s
->hw
.num_modes
, o
->mode
);
3360 if (mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
3361 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3362 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3363 enum chan_allowed res
;
3364 res
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3365 if (res
== ALLOWED
) {
3367 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u",
3369 reg
= &chan
->reg_class
[cla
];
3371 reg
->reg_class
= o
->op_class
;
3373 reg
->channel
[reg
->channels
] = ch
;
3375 } else if (res
== NO_IR
&&
3376 wpa_s
->conf
->p2p_add_cli_chan
) {
3377 if (cli_reg
== NULL
) {
3378 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u (client only)",
3380 cli_reg
= &cli_chan
->reg_class
[cli_cla
];
3382 cli_reg
->reg_class
= o
->op_class
;
3384 cli_reg
->channel
[cli_reg
->channels
] = ch
;
3385 cli_reg
->channels
++;
3389 wpa_hexdump(MSG_DEBUG
, "P2P: Channels",
3390 reg
->channel
, reg
->channels
);
3393 wpa_hexdump(MSG_DEBUG
, "P2P: Channels (client only)",
3394 cli_reg
->channel
, cli_reg
->channels
);
3398 chan
->reg_classes
= cla
;
3399 cli_chan
->reg_classes
= cli_cla
;
3405 int wpas_p2p_get_ht40_mode(struct wpa_supplicant
*wpa_s
,
3406 struct hostapd_hw_modes
*mode
, u8 channel
)
3409 enum chan_allowed ret
;
3411 for (op
= 0; op_class
[op
].op_class
; op
++) {
3412 const struct p2p_oper_class_map
*o
= &op_class
[op
];
3415 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3416 if (o
->mode
!= HOSTAPD_MODE_IEEE80211A
||
3417 (o
->bw
!= BW40PLUS
&& o
->bw
!= BW40MINUS
) ||
3420 ret
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3422 return (o
->bw
== BW40MINUS
) ? -1 : 1;
3429 int wpas_p2p_get_vht80_center(struct wpa_supplicant
*wpa_s
,
3430 struct hostapd_hw_modes
*mode
, u8 channel
)
3432 if (!wpas_p2p_verify_channel(wpa_s
, mode
, channel
, BW80
))
3435 return wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3439 static int wpas_get_noa(void *ctx
, const u8
*interface_addr
, u8
*buf
,
3442 struct wpa_supplicant
*wpa_s
= ctx
;
3444 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3445 if (os_memcmp(wpa_s
->own_addr
, interface_addr
, ETH_ALEN
) == 0)
3451 return wpa_drv_get_noa(wpa_s
, buf
, buf_len
);
3455 struct wpa_supplicant
* wpas_get_p2p_go_iface(struct wpa_supplicant
*wpa_s
,
3456 const u8
*ssid
, size_t ssid_len
)
3458 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3459 struct wpa_ssid
*s
= wpa_s
->current_ssid
;
3462 if (s
->mode
!= WPAS_MODE_P2P_GO
&&
3463 s
->mode
!= WPAS_MODE_AP
&&
3464 s
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
3466 if (s
->ssid_len
!= ssid_len
||
3467 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
3477 struct wpa_supplicant
* wpas_get_p2p_client_iface(struct wpa_supplicant
*wpa_s
,
3478 const u8
*peer_dev_addr
)
3480 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3481 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
3482 if (ssid
&& (ssid
->mode
!= WPAS_MODE_INFRA
|| !ssid
->p2p_group
))
3484 if (os_memcmp(wpa_s
->go_dev_addr
, peer_dev_addr
, ETH_ALEN
) == 0)
3492 static int wpas_go_connected(void *ctx
, const u8
*dev_addr
)
3494 struct wpa_supplicant
*wpa_s
= ctx
;
3496 return wpas_get_p2p_client_iface(wpa_s
, dev_addr
) != NULL
;
3500 static int wpas_is_concurrent_session_active(void *ctx
)
3502 struct wpa_supplicant
*wpa_s
= ctx
;
3503 struct wpa_supplicant
*ifs
;
3505 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
3508 if (ifs
->wpa_state
> WPA_ASSOCIATED
)
3515 static void wpas_p2p_debug_print(void *ctx
, int level
, const char *msg
)
3517 struct wpa_supplicant
*wpa_s
= ctx
;
3518 wpa_msg_global(wpa_s
, level
, "P2P: %s", msg
);
3522 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant
*wpa_s
,
3523 const char *conf_p2p_dev
)
3525 struct wpa_interface iface
;
3526 struct wpa_supplicant
*p2pdev_wpa_s
;
3528 char force_name
[100];
3531 ret
= os_snprintf(ifname
, sizeof(ifname
), P2P_MGMT_DEVICE_PREFIX
"%s",
3533 if (os_snprintf_error(sizeof(ifname
), ret
))
3535 force_name
[0] = '\0';
3536 wpa_s
->pending_interface_type
= WPA_IF_P2P_DEVICE
;
3537 ret
= wpa_drv_if_add(wpa_s
, WPA_IF_P2P_DEVICE
, ifname
, NULL
, NULL
,
3538 force_name
, wpa_s
->pending_interface_addr
, NULL
);
3540 wpa_printf(MSG_DEBUG
, "P2P: Failed to create P2P Device interface");
3543 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
3544 sizeof(wpa_s
->pending_interface_name
));
3546 os_memset(&iface
, 0, sizeof(iface
));
3548 iface
.ifname
= wpa_s
->pending_interface_name
;
3549 iface
.driver
= wpa_s
->driver
->name
;
3550 iface
.driver_param
= wpa_s
->conf
->driver_param
;
3553 * If a P2P Device configuration file was given, use it as the interface
3554 * configuration file (instead of using parent's configuration file.
3557 iface
.confname
= conf_p2p_dev
;
3558 iface
.ctrl_interface
= NULL
;
3560 iface
.confname
= wpa_s
->confname
;
3561 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
3564 p2pdev_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
, wpa_s
);
3565 if (!p2pdev_wpa_s
) {
3566 wpa_printf(MSG_DEBUG
, "P2P: Failed to add P2P Device interface");
3570 wpa_s
->pending_interface_name
[0] = '\0';
3575 static void wpas_presence_resp(void *ctx
, const u8
*src
, u8 status
,
3576 const u8
*noa
, size_t noa_len
)
3578 struct wpa_supplicant
*wpa_s
, *intf
= ctx
;
3581 for (wpa_s
= intf
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3582 if (wpa_s
->waiting_presence_resp
)
3586 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No group interface was waiting for presence response");
3589 wpa_s
->waiting_presence_resp
= 0;
3591 wpa_snprintf_hex(hex
, sizeof(hex
), noa
, noa_len
);
3592 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PRESENCE_RESPONSE
"src=" MACSTR
3593 " status=%u noa=%s", MAC2STR(src
), status
, hex
);
3597 static int wpas_get_persistent_group(void *ctx
, const u8
*addr
, const u8
*ssid
,
3598 size_t ssid_len
, u8
*go_dev_addr
,
3599 u8
*ret_ssid
, size_t *ret_ssid_len
,
3600 u8
*intended_iface_addr
)
3602 struct wpa_supplicant
*wpa_s
= ctx
;
3605 s
= wpas_p2p_get_persistent(wpa_s
, addr
, ssid
, ssid_len
);
3607 os_memcpy(ret_ssid
, s
->ssid
, s
->ssid_len
);
3608 *ret_ssid_len
= s
->ssid_len
;
3609 os_memcpy(go_dev_addr
, s
->bssid
, ETH_ALEN
);
3611 if (s
->mode
!= WPAS_MODE_P2P_GO
) {
3612 os_memset(intended_iface_addr
, 0, ETH_ALEN
);
3613 } else if (wpas_p2p_create_iface(wpa_s
)) {
3614 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
))
3617 os_memcpy(intended_iface_addr
,
3618 wpa_s
->pending_interface_addr
, ETH_ALEN
);
3620 os_memcpy(intended_iface_addr
, wpa_s
->own_addr
,
3630 static int wpas_get_go_info(void *ctx
, u8
*intended_addr
,
3631 u8
*ssid
, size_t *ssid_len
, int *group_iface
)
3633 struct wpa_supplicant
*wpa_s
= ctx
;
3638 * group_iface will be set to 1 only if a dedicated interface for P2P
3639 * role is required. First, we try to reuse an active GO. However,
3640 * if it is not present, we will try to reactivate an existing
3641 * persistent group and set group_iface to 1, so the caller will know
3642 * that the pending interface should be used.
3645 s
= wpas_p2p_group_go_ssid(wpa_s
, bssid
);
3647 s
= wpas_p2p_get_persistent_go(wpa_s
);
3648 *group_iface
= wpas_p2p_create_iface(wpa_s
);
3650 os_memcpy(bssid
, s
->bssid
, ETH_ALEN
);
3655 os_memcpy(intended_addr
, bssid
, ETH_ALEN
);
3656 os_memcpy(ssid
, s
->ssid
, s
->ssid_len
);
3657 *ssid_len
= s
->ssid_len
;
3663 static int wpas_remove_stale_groups(void *ctx
, const u8
*peer
, const u8
*go
,
3664 const u8
*ssid
, size_t ssid_len
)
3666 struct wpa_supplicant
*wpa_s
= ctx
;
3668 int save_config
= 0;
3671 /* Start with our first choice of Persistent Groups */
3672 while ((s
= wpas_p2p_get_persistent(wpa_s
, peer
, NULL
, 0))) {
3673 if (go
&& ssid
&& ssid_len
&&
3674 s
->ssid_len
== ssid_len
&&
3675 os_memcmp(go
, s
->bssid
, ETH_ALEN
) == 0 &&
3676 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
3679 /* Remove stale persistent group */
3680 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->num_p2p_clients
<= 1) {
3681 wpa_config_remove_network(wpa_s
->conf
, s
->id
);
3686 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
3687 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
3688 peer
, ETH_ALEN
) != 0)
3691 os_memmove(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
3692 s
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
3693 (s
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
3696 s
->num_p2p_clients
--;
3701 p2p_config_write(wpa_s
);
3703 /* Return TRUE if valid SSID remains */
3708 static void wpas_p2ps_get_feat_cap_str(char *buf
, size_t buf_len
,
3709 const u8
*feat_cap
, size_t feat_cap_len
)
3711 static const char pref
[] = " feature_cap=";
3717 * We expect a feature capability to contain at least one byte to be
3718 * reported. The string buffer provided by the caller function is
3719 * expected to be big enough to contain all bytes of the attribute for
3720 * known specifications. This function truncates the reported bytes if
3721 * the feature capability data exceeds the string buffer size.
3723 if (!feat_cap
|| !feat_cap_len
|| buf_len
< sizeof(pref
) + 2)
3726 os_memcpy(buf
, pref
, sizeof(pref
));
3727 ret
= wpa_snprintf_hex(&buf
[sizeof(pref
) - 1],
3728 buf_len
- sizeof(pref
) + 1,
3729 feat_cap
, feat_cap_len
);
3731 if (ret
!= (2 * (int) feat_cap_len
))
3732 wpa_printf(MSG_WARNING
, "P2PS feature_cap bytes truncated");
3736 static void wpas_p2ps_prov_complete(void *ctx
, u8 status
, const u8
*dev
,
3737 const u8
*adv_mac
, const u8
*ses_mac
,
3738 const u8
*grp_mac
, u32 adv_id
, u32 ses_id
,
3739 u8 conncap
, int passwd_id
,
3740 const u8
*persist_ssid
,
3741 size_t persist_ssid_size
, int response_done
,
3742 int prov_start
, const char *session_info
,
3743 const u8
*feat_cap
, size_t feat_cap_len
)
3745 struct wpa_supplicant
*wpa_s
= ctx
;
3747 struct wpa_ssid
*persistent_go
, *stale
, *s
;
3748 int save_config
= 0;
3749 struct wpa_supplicant
*go_wpa_s
;
3750 char feat_cap_str
[256];
3755 os_memset(mac
, 0, ETH_ALEN
);
3763 wpas_p2ps_get_feat_cap_str(feat_cap_str
, sizeof(feat_cap_str
),
3764 feat_cap
, feat_cap_len
);
3767 if (session_info
== NULL
) {
3768 wpa_msg_global(wpa_s
, MSG_INFO
,
3769 P2P_EVENT_P2PS_PROVISION_START MACSTR
3770 " adv_id=%x conncap=%x"
3772 " session=%x mac=" MACSTR
3773 " dev_passwd_id=%d%s",
3774 MAC2STR(dev
), adv_id
, conncap
,
3776 ses_id
, MAC2STR(ses_mac
),
3777 passwd_id
, feat_cap_str
);
3779 wpa_msg_global(wpa_s
, MSG_INFO
,
3780 P2P_EVENT_P2PS_PROVISION_START MACSTR
3781 " adv_id=%x conncap=%x"
3783 " session=%x mac=" MACSTR
3784 " dev_passwd_id=%d info='%s'%s",
3785 MAC2STR(dev
), adv_id
, conncap
,
3787 ses_id
, MAC2STR(ses_mac
),
3788 passwd_id
, session_info
, feat_cap_str
);
3793 go_wpa_s
= wpas_p2p_get_go_group(wpa_s
);
3794 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
3796 if (status
&& status
!= P2P_SC_SUCCESS_DEFERRED
) {
3797 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
3798 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
3800 if (persistent_go
&& !persistent_go
->num_p2p_clients
) {
3801 /* remove empty persistent GO */
3802 wpa_config_remove_network(wpa_s
->conf
,
3806 wpa_msg_global(wpa_s
, MSG_INFO
,
3807 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3809 " adv_id=%x adv_mac=" MACSTR
3810 " session=%x mac=" MACSTR
"%s",
3811 MAC2STR(dev
), status
,
3812 adv_id
, MAC2STR(adv_mac
),
3813 ses_id
, MAC2STR(ses_mac
), feat_cap_str
);
3817 /* Clean up stale persistent groups with this device */
3818 s
= wpas_p2p_get_persistent(wpa_s
, dev
, persist_ssid
,
3821 if (persist_ssid
&& s
&& s
->mode
!= WPAS_MODE_P2P_GO
&&
3822 is_zero_ether_addr(grp_mac
)) {
3823 wpa_dbg(wpa_s
, MSG_ERROR
,
3824 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3829 stale
= wpas_p2p_get_persistent(wpa_s
, dev
, NULL
, 0);
3833 if (s
&& s
->ssid_len
== stale
->ssid_len
&&
3834 os_memcmp(stale
->bssid
, s
->bssid
, ETH_ALEN
) == 0 &&
3835 os_memcmp(stale
->ssid
, s
->ssid
, s
->ssid_len
) == 0)
3838 /* Remove stale persistent group */
3839 if (stale
->mode
!= WPAS_MODE_P2P_GO
||
3840 stale
->num_p2p_clients
<= 1) {
3841 wpa_config_remove_network(wpa_s
->conf
, stale
->id
);
3845 for (i
= 0; i
< stale
->num_p2p_clients
; i
++) {
3846 if (os_memcmp(stale
->p2p_client_list
+
3848 dev
, ETH_ALEN
) == 0) {
3849 os_memmove(stale
->p2p_client_list
+
3851 stale
->p2p_client_list
+
3853 (stale
->num_p2p_clients
-
3858 stale
->num_p2p_clients
--;
3864 p2p_config_write(wpa_s
);
3867 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
3868 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
3870 if (persistent_go
&& s
!= persistent_go
&&
3871 !persistent_go
->num_p2p_clients
) {
3872 /* remove empty persistent GO */
3873 wpa_config_remove_network(wpa_s
->conf
,
3878 wpa_msg_global(wpa_s
, MSG_INFO
,
3879 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3881 " adv_id=%x adv_mac=" MACSTR
3882 " session=%x mac=" MACSTR
3884 MAC2STR(dev
), status
,
3885 adv_id
, MAC2STR(adv_mac
),
3886 ses_id
, MAC2STR(ses_mac
), s
->id
, feat_cap_str
);
3890 if (conncap
== P2PS_SETUP_GROUP_OWNER
) {
3892 * We need to copy the interface name. Simply saving a
3893 * pointer isn't enough, since if we use pending_interface_name
3894 * it will be overwritten when the group is added.
3896 char go_ifname
[100];
3898 go_ifname
[0] = '\0';
3900 wpa_s
->global
->pending_p2ps_group
= 1;
3902 if (!wpas_p2p_create_iface(wpa_s
))
3903 os_memcpy(go_ifname
, wpa_s
->ifname
,
3905 else if (wpa_s
->pending_interface_name
[0])
3906 os_memcpy(go_ifname
,
3907 wpa_s
->pending_interface_name
,
3910 if (!go_ifname
[0]) {
3911 wpas_p2ps_prov_complete(
3912 wpa_s
, P2P_SC_FAIL_UNKNOWN_GROUP
,
3913 dev
, adv_mac
, ses_mac
,
3914 grp_mac
, adv_id
, ses_id
, 0, 0,
3915 NULL
, 0, 0, 0, NULL
, NULL
, 0);
3919 /* If PD Resp complete, start up the GO */
3920 if (response_done
&& persistent_go
) {
3921 wpas_p2p_group_add_persistent(
3922 wpa_s
, persistent_go
,
3923 0, 0, 0, 0, 0, NULL
,
3924 persistent_go
->mode
==
3926 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
:
3928 } else if (response_done
) {
3929 wpas_p2p_group_add(wpa_s
, 1, 0, 0, 0);
3932 if (passwd_id
== DEV_PW_P2PS_DEFAULT
) {
3933 os_memcpy(wpa_s
->p2ps_join_addr
, grp_mac
,
3935 wpa_s
->p2ps_method_config_any
= 1;
3937 } else if (passwd_id
== DEV_PW_P2PS_DEFAULT
) {
3938 os_memcpy(go_ifname
, go_wpa_s
->ifname
,
3941 if (is_zero_ether_addr(grp_mac
)) {
3942 wpa_dbg(go_wpa_s
, MSG_DEBUG
,
3943 "P2P: Setting PIN-1 for ANY");
3944 wpa_supplicant_ap_wps_pin(go_wpa_s
, NULL
,
3945 "12345670", NULL
, 0,
3948 wpa_dbg(go_wpa_s
, MSG_DEBUG
,
3949 "P2P: Setting PIN-1 for " MACSTR
,
3951 wpa_supplicant_ap_wps_pin(go_wpa_s
, grp_mac
,
3952 "12345670", NULL
, 0,
3956 os_memcpy(wpa_s
->p2ps_join_addr
, grp_mac
, ETH_ALEN
);
3957 wpa_s
->p2ps_method_config_any
= 1;
3960 wpa_msg_global(wpa_s
, MSG_INFO
,
3961 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3962 " status=%d conncap=%x"
3963 " adv_id=%x adv_mac=" MACSTR
3964 " session=%x mac=" MACSTR
3965 " dev_passwd_id=%d go=%s%s",
3966 MAC2STR(dev
), status
, conncap
,
3967 adv_id
, MAC2STR(adv_mac
),
3968 ses_id
, MAC2STR(ses_mac
),
3969 passwd_id
, go_ifname
, feat_cap_str
);
3973 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
3974 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
3976 if (persistent_go
&& !persistent_go
->num_p2p_clients
) {
3977 /* remove empty persistent GO */
3978 wpa_config_remove_network(wpa_s
->conf
, persistent_go
->id
);
3981 if (conncap
== P2PS_SETUP_CLIENT
) {
3982 wpa_msg_global(wpa_s
, MSG_INFO
,
3983 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3984 " status=%d conncap=%x"
3985 " adv_id=%x adv_mac=" MACSTR
3986 " session=%x mac=" MACSTR
3987 " dev_passwd_id=%d join=" MACSTR
"%s",
3988 MAC2STR(dev
), status
, conncap
,
3989 adv_id
, MAC2STR(adv_mac
),
3990 ses_id
, MAC2STR(ses_mac
),
3991 passwd_id
, MAC2STR(grp_mac
), feat_cap_str
);
3993 wpa_msg_global(wpa_s
, MSG_INFO
,
3994 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3995 " status=%d conncap=%x"
3996 " adv_id=%x adv_mac=" MACSTR
3997 " session=%x mac=" MACSTR
3998 " dev_passwd_id=%d%s",
3999 MAC2STR(dev
), status
, conncap
,
4000 adv_id
, MAC2STR(adv_mac
),
4001 ses_id
, MAC2STR(ses_mac
),
4002 passwd_id
, feat_cap_str
);
4007 static int _wpas_p2p_in_progress(void *ctx
)
4009 struct wpa_supplicant
*wpa_s
= ctx
;
4010 return wpas_p2p_in_progress(wpa_s
);
4014 static int wpas_prov_disc_resp_cb(void *ctx
)
4016 struct wpa_supplicant
*wpa_s
= ctx
;
4017 struct wpa_ssid
*persistent_go
;
4019 if (!wpa_s
->global
->pending_p2ps_group
)
4022 wpa_s
->global
->pending_p2ps_group
= 0;
4024 if (wpas_p2p_get_go_group(wpa_s
))
4026 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
4028 if (persistent_go
) {
4029 wpas_p2p_group_add_persistent(
4030 wpa_s
, persistent_go
, 0, 0, 0, 0, 0, NULL
,
4031 persistent_go
->mode
== WPAS_MODE_P2P_GO
?
4032 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
: 0);
4034 wpas_p2p_group_add(wpa_s
, 1, 0, 0, 0);
4041 static int wpas_p2p_get_pref_freq_list(void *ctx
, int go
,
4043 unsigned int *freq_list
)
4045 struct wpa_supplicant
*wpa_s
= ctx
;
4047 return wpa_drv_get_pref_freq_list(wpa_s
, go
? WPA_IF_P2P_GO
:
4048 WPA_IF_P2P_CLIENT
, len
, freq_list
);
4053 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4054 * @global: Pointer to global data from wpa_supplicant_init()
4055 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4056 * Returns: 0 on success, -1 on failure
4058 int wpas_p2p_init(struct wpa_global
*global
, struct wpa_supplicant
*wpa_s
)
4060 struct p2p_config p2p
;
4063 if (wpa_s
->conf
->p2p_disabled
)
4066 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
4072 os_memset(&p2p
, 0, sizeof(p2p
));
4074 p2p
.debug_print
= wpas_p2p_debug_print
;
4075 p2p
.p2p_scan
= wpas_p2p_scan
;
4076 p2p
.send_action
= wpas_send_action
;
4077 p2p
.send_action_done
= wpas_send_action_done
;
4078 p2p
.go_neg_completed
= wpas_go_neg_completed
;
4079 p2p
.go_neg_req_rx
= wpas_go_neg_req_rx
;
4080 p2p
.dev_found
= wpas_dev_found
;
4081 p2p
.dev_lost
= wpas_dev_lost
;
4082 p2p
.find_stopped
= wpas_find_stopped
;
4083 p2p
.start_listen
= wpas_start_listen
;
4084 p2p
.stop_listen
= wpas_stop_listen
;
4085 p2p
.send_probe_resp
= wpas_send_probe_resp
;
4086 p2p
.sd_request
= wpas_sd_request
;
4087 p2p
.sd_response
= wpas_sd_response
;
4088 p2p
.prov_disc_req
= wpas_prov_disc_req
;
4089 p2p
.prov_disc_resp
= wpas_prov_disc_resp
;
4090 p2p
.prov_disc_fail
= wpas_prov_disc_fail
;
4091 p2p
.invitation_process
= wpas_invitation_process
;
4092 p2p
.invitation_received
= wpas_invitation_received
;
4093 p2p
.invitation_result
= wpas_invitation_result
;
4094 p2p
.get_noa
= wpas_get_noa
;
4095 p2p
.go_connected
= wpas_go_connected
;
4096 p2p
.presence_resp
= wpas_presence_resp
;
4097 p2p
.is_concurrent_session_active
= wpas_is_concurrent_session_active
;
4098 p2p
.is_p2p_in_progress
= _wpas_p2p_in_progress
;
4099 p2p
.get_persistent_group
= wpas_get_persistent_group
;
4100 p2p
.get_go_info
= wpas_get_go_info
;
4101 p2p
.remove_stale_groups
= wpas_remove_stale_groups
;
4102 p2p
.p2ps_prov_complete
= wpas_p2ps_prov_complete
;
4103 p2p
.prov_disc_resp_cb
= wpas_prov_disc_resp_cb
;
4104 p2p
.p2ps_group_capability
= p2ps_group_capability
;
4105 p2p
.get_pref_freq_list
= wpas_p2p_get_pref_freq_list
;
4107 os_memcpy(wpa_s
->global
->p2p_dev_addr
, wpa_s
->own_addr
, ETH_ALEN
);
4108 os_memcpy(p2p
.dev_addr
, wpa_s
->global
->p2p_dev_addr
, ETH_ALEN
);
4109 p2p
.dev_name
= wpa_s
->conf
->device_name
;
4110 p2p
.manufacturer
= wpa_s
->conf
->manufacturer
;
4111 p2p
.model_name
= wpa_s
->conf
->model_name
;
4112 p2p
.model_number
= wpa_s
->conf
->model_number
;
4113 p2p
.serial_number
= wpa_s
->conf
->serial_number
;
4115 os_memcpy(p2p
.uuid
, wpa_s
->wps
->uuid
, 16);
4116 p2p
.config_methods
= wpa_s
->wps
->config_methods
;
4119 if (wpas_p2p_setup_channels(wpa_s
, &p2p
.channels
, &p2p
.cli_channels
)) {
4120 wpa_printf(MSG_ERROR
,
4121 "P2P: Failed to configure supported channel list");
4125 if (wpa_s
->conf
->p2p_listen_reg_class
&&
4126 wpa_s
->conf
->p2p_listen_channel
) {
4127 p2p
.reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
4128 p2p
.channel
= wpa_s
->conf
->p2p_listen_channel
;
4129 p2p
.channel_forced
= 1;
4132 * Pick one of the social channels randomly as the listen
4135 if (p2p_config_get_random_social(&p2p
, &p2p
.reg_class
,
4136 &p2p
.channel
) != 0) {
4137 wpa_printf(MSG_INFO
,
4138 "P2P: No social channels supported by the driver - do not enable P2P");
4141 p2p
.channel_forced
= 0;
4143 wpa_printf(MSG_DEBUG
, "P2P: Own listen channel: %d:%d",
4144 p2p
.reg_class
, p2p
.channel
);
4146 if (wpa_s
->conf
->p2p_oper_reg_class
&&
4147 wpa_s
->conf
->p2p_oper_channel
) {
4148 p2p
.op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
4149 p2p
.op_channel
= wpa_s
->conf
->p2p_oper_channel
;
4150 p2p
.cfg_op_channel
= 1;
4151 wpa_printf(MSG_DEBUG
, "P2P: Configured operating channel: "
4152 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4156 * Use random operation channel from 2.4 GHz band social
4157 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4158 * other preference is indicated.
4160 if (p2p_config_get_random_social(&p2p
, &p2p
.op_reg_class
,
4161 &p2p
.op_channel
) != 0) {
4162 wpa_printf(MSG_ERROR
,
4163 "P2P: Failed to select random social channel as operation channel");
4166 p2p
.cfg_op_channel
= 0;
4167 wpa_printf(MSG_DEBUG
, "P2P: Random operating channel: "
4168 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4171 if (wpa_s
->conf
->p2p_pref_chan
&& wpa_s
->conf
->num_p2p_pref_chan
) {
4172 p2p
.pref_chan
= wpa_s
->conf
->p2p_pref_chan
;
4173 p2p
.num_pref_chan
= wpa_s
->conf
->num_p2p_pref_chan
;
4176 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
4177 os_memcpy(p2p
.country
, wpa_s
->conf
->country
, 2);
4178 p2p
.country
[2] = 0x04;
4180 os_memcpy(p2p
.country
, "XX\x04", 3);
4182 os_memcpy(p2p
.pri_dev_type
, wpa_s
->conf
->device_type
,
4185 p2p
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
4186 os_memcpy(p2p
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
4187 p2p
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
4189 p2p
.concurrent_operations
= !!(wpa_s
->drv_flags
&
4190 WPA_DRIVER_FLAGS_P2P_CONCURRENT
);
4192 p2p
.max_peers
= 100;
4194 if (wpa_s
->conf
->p2p_ssid_postfix
) {
4195 p2p
.ssid_postfix_len
=
4196 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
);
4197 if (p2p
.ssid_postfix_len
> sizeof(p2p
.ssid_postfix
))
4198 p2p
.ssid_postfix_len
= sizeof(p2p
.ssid_postfix
);
4199 os_memcpy(p2p
.ssid_postfix
, wpa_s
->conf
->p2p_ssid_postfix
,
4200 p2p
.ssid_postfix_len
);
4203 p2p
.p2p_intra_bss
= wpa_s
->conf
->p2p_intra_bss
;
4205 p2p
.max_listen
= wpa_s
->max_remain_on_chan
;
4207 if (wpa_s
->conf
->p2p_passphrase_len
>= 8 &&
4208 wpa_s
->conf
->p2p_passphrase_len
<= 63)
4209 p2p
.passphrase_len
= wpa_s
->conf
->p2p_passphrase_len
;
4211 p2p
.passphrase_len
= 8;
4213 global
->p2p
= p2p_init(&p2p
);
4214 if (global
->p2p
== NULL
)
4216 global
->p2p_init_wpa_s
= wpa_s
;
4218 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
4219 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
4221 p2p_add_wps_vendor_extension(
4222 global
->p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
4225 p2p_set_no_go_freq(global
->p2p
, &wpa_s
->conf
->p2p_no_go_freq
);
4232 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4233 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4235 * This function deinitialize per-interface P2P data.
4237 void wpas_p2p_deinit(struct wpa_supplicant
*wpa_s
)
4239 if (wpa_s
->driver
&& wpa_s
->drv_priv
)
4240 wpa_drv_probe_req_report(wpa_s
, 0);
4242 if (wpa_s
->go_params
) {
4243 /* Clear any stored provisioning info */
4244 p2p_clear_provisioning_info(
4246 wpa_s
->go_params
->peer_device_addr
);
4249 os_free(wpa_s
->go_params
);
4250 wpa_s
->go_params
= NULL
;
4251 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
, wpa_s
, NULL
);
4252 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
4253 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4254 wpa_s
->p2p_long_listen
= 0;
4255 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
4256 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
4257 wpas_p2p_remove_pending_group_interface(wpa_s
);
4258 eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
);
4259 wpas_p2p_listen_work_done(wpa_s
);
4260 if (wpa_s
->p2p_send_action_work
) {
4261 os_free(wpa_s
->p2p_send_action_work
->ctx
);
4262 radio_work_done(wpa_s
->p2p_send_action_work
);
4263 wpa_s
->p2p_send_action_work
= NULL
;
4265 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
, wpa_s
, NULL
);
4267 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
4268 wpa_s
->p2p_oob_dev_pw
= NULL
;
4270 os_free(wpa_s
->p2p_group_common_freqs
);
4271 wpa_s
->p2p_group_common_freqs
= NULL
;
4272 wpa_s
->p2p_group_common_freqs_num
= 0;
4274 /* TODO: remove group interface from the driver if this wpa_s instance
4275 * is on top of a P2P group interface */
4280 * wpas_p2p_deinit_global - Deinitialize global P2P module
4281 * @global: Pointer to global data from wpa_supplicant_init()
4283 * This function deinitializes the global (per device) P2P module.
4285 static void wpas_p2p_deinit_global(struct wpa_global
*global
)
4287 struct wpa_supplicant
*wpa_s
, *tmp
;
4289 wpa_s
= global
->ifaces
;
4291 wpas_p2p_service_flush(global
->p2p_init_wpa_s
);
4293 /* Remove remaining P2P group interfaces */
4294 while (wpa_s
&& wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
)
4295 wpa_s
= wpa_s
->next
;
4297 tmp
= global
->ifaces
;
4300 tmp
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)) {
4305 /* Disconnect from the P2P group and deinit the interface */
4306 wpas_p2p_disconnect(tmp
);
4310 * Deinit GO data on any possibly remaining interface (if main
4311 * interface is used as GO).
4313 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
4314 if (wpa_s
->ap_iface
)
4315 wpas_p2p_group_deinit(wpa_s
);
4318 p2p_deinit(global
->p2p
);
4320 global
->p2p_init_wpa_s
= NULL
;
4324 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
)
4326 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
) &&
4327 wpa_s
->conf
->p2p_no_group_iface
)
4328 return 0; /* separate interface disabled per configuration */
4329 if (wpa_s
->drv_flags
&
4330 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
|
4331 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P
))
4332 return 1; /* P2P group requires a new interface in every case
4334 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CONCURRENT
))
4335 return 0; /* driver does not support concurrent operations */
4336 if (wpa_s
->global
->ifaces
->next
)
4337 return 1; /* more that one interface already in use */
4338 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
)
4339 return 1; /* this interface is already in use */
4344 static int wpas_p2p_start_go_neg(struct wpa_supplicant
*wpa_s
,
4345 const u8
*peer_addr
,
4346 enum p2p_wps_method wps_method
,
4347 int go_intent
, const u8
*own_interface_addr
,
4348 unsigned int force_freq
, int persistent_group
,
4349 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4351 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4352 persistent_group
= 2;
4355 * Increase GO config timeout if HT40 is used since it takes some time
4356 * to scan channels for coex purposes before the BSS can be started.
4358 p2p_set_config_timeout(wpa_s
->global
->p2p
,
4359 wpa_s
->p2p_go_ht40
? 255 : 100, 20);
4361 return p2p_connect(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4362 go_intent
, own_interface_addr
, force_freq
,
4363 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4364 ssid
? ssid
->ssid_len
: 0,
4365 wpa_s
->p2p_pd_before_go_neg
, pref_freq
,
4366 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4371 static int wpas_p2p_auth_go_neg(struct wpa_supplicant
*wpa_s
,
4372 const u8
*peer_addr
,
4373 enum p2p_wps_method wps_method
,
4374 int go_intent
, const u8
*own_interface_addr
,
4375 unsigned int force_freq
, int persistent_group
,
4376 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4378 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4379 persistent_group
= 2;
4381 return p2p_authorize(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4382 go_intent
, own_interface_addr
, force_freq
,
4383 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4384 ssid
? ssid
->ssid_len
: 0, pref_freq
,
4385 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4390 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant
*wpa_s
)
4392 wpa_s
->p2p_join_scan_count
++;
4393 wpa_printf(MSG_DEBUG
, "P2P: Join scan attempt %d",
4394 wpa_s
->p2p_join_scan_count
);
4395 if (wpa_s
->p2p_join_scan_count
> P2P_MAX_JOIN_SCAN_ATTEMPTS
) {
4396 wpa_printf(MSG_DEBUG
, "P2P: Failed to find GO " MACSTR
4397 " for join operationg - stop join attempt",
4398 MAC2STR(wpa_s
->pending_join_iface_addr
));
4399 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4400 if (wpa_s
->p2p_auto_pd
) {
4401 wpa_s
->p2p_auto_pd
= 0;
4402 wpa_msg_global(wpa_s
, MSG_INFO
,
4403 P2P_EVENT_PROV_DISC_FAILURE
4404 " p2p_dev_addr=" MACSTR
" status=N/A",
4405 MAC2STR(wpa_s
->pending_join_dev_addr
));
4408 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4409 P2P_EVENT_GROUP_FORMATION_FAILURE
);
4414 static int wpas_check_freq_conflict(struct wpa_supplicant
*wpa_s
, int freq
)
4417 unsigned int num
, i
;
4418 struct wpa_used_freq_data
*freqs
;
4420 if (wpas_p2p_num_unused_channels(wpa_s
) > 0) {
4421 /* Multiple channels are supported and not all are in use */
4425 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
4426 sizeof(struct wpa_used_freq_data
));
4430 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
4431 wpa_s
->num_multichan_concurrent
);
4433 for (i
= 0; i
< num
; i
++) {
4434 if (freqs
[i
].freq
== freq
) {
4435 wpa_printf(MSG_DEBUG
, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4442 wpa_printf(MSG_DEBUG
, "P2P: No valid operating frequencies");
4451 static int wpas_p2p_peer_go(struct wpa_supplicant
*wpa_s
,
4452 const u8
*peer_dev_addr
)
4454 struct wpa_bss
*bss
;
4457 bss
= wpa_bss_get_p2p_dev_addr(wpa_s
, peer_dev_addr
);
4460 if (bss
->last_update_idx
< wpa_s
->bss_update_idx
) {
4461 wpa_printf(MSG_DEBUG
, "P2P: Peer BSS entry not updated in the "
4466 updated
= os_reltime_before(&wpa_s
->p2p_auto_started
,
4468 wpa_printf(MSG_DEBUG
, "P2P: Current BSS entry for peer updated at "
4469 "%ld.%06ld (%supdated in last scan)",
4470 bss
->last_update
.sec
, bss
->last_update
.usec
,
4471 updated
? "": "not ");
4477 static void wpas_p2p_scan_res_join(struct wpa_supplicant
*wpa_s
,
4478 struct wpa_scan_results
*scan_res
)
4480 struct wpa_bss
*bss
= NULL
;
4482 u8 iface_addr
[ETH_ALEN
];
4484 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4486 if (wpa_s
->global
->p2p_disabled
)
4489 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS) for %sjoin",
4490 scan_res
? (int) scan_res
->num
: -1,
4491 wpa_s
->p2p_auto_join
? "auto_" : "");
4494 wpas_p2p_scan_res_handler(wpa_s
, scan_res
);
4496 if (wpa_s
->p2p_auto_pd
) {
4497 int join
= wpas_p2p_peer_go(wpa_s
,
4498 wpa_s
->pending_join_dev_addr
);
4500 wpa_s
->auto_pd_scan_retry
< P2P_AUTO_PD_SCAN_ATTEMPTS
) {
4501 wpa_s
->auto_pd_scan_retry
++;
4502 bss
= wpa_bss_get_bssid_latest(
4503 wpa_s
, wpa_s
->pending_join_dev_addr
);
4506 wpa_printf(MSG_DEBUG
, "P2P: Scan retry %d for "
4507 "the peer " MACSTR
" at %d MHz",
4508 wpa_s
->auto_pd_scan_retry
,
4510 pending_join_dev_addr
),
4512 wpas_p2p_join_scan_req(wpa_s
, freq
, NULL
, 0);
4520 wpa_s
->p2p_auto_pd
= 0;
4521 wpa_s
->pending_pd_use
= join
? AUTO_PD_JOIN
: AUTO_PD_GO_NEG
;
4522 wpa_printf(MSG_DEBUG
, "P2P: Auto PD with " MACSTR
" join=%d",
4523 MAC2STR(wpa_s
->pending_join_dev_addr
), join
);
4524 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4525 wpa_s
->pending_join_dev_addr
, NULL
,
4526 wpa_s
->pending_pd_config_methods
, join
,
4527 0, wpa_s
->user_initiated_pd
) < 0) {
4528 wpa_s
->p2p_auto_pd
= 0;
4529 wpa_msg_global(wpa_s
, MSG_INFO
,
4530 P2P_EVENT_PROV_DISC_FAILURE
4531 " p2p_dev_addr=" MACSTR
" status=N/A",
4532 MAC2STR(wpa_s
->pending_join_dev_addr
));
4537 if (wpa_s
->p2p_auto_join
) {
4538 int join
= wpas_p2p_peer_go(wpa_s
,
4539 wpa_s
->pending_join_dev_addr
);
4541 wpa_printf(MSG_DEBUG
, "P2P: Peer was not found to be "
4542 "running a GO -> use GO Negotiation");
4543 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4544 P2P_EVENT_FALLBACK_TO_GO_NEG
4545 "reason=peer-not-running-GO");
4546 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
,
4547 wpa_s
->p2p_pin
, wpa_s
->p2p_wps_method
,
4548 wpa_s
->p2p_persistent_group
, 0, 0, 0,
4549 wpa_s
->p2p_go_intent
,
4550 wpa_s
->p2p_connect_freq
,
4551 wpa_s
->p2p_persistent_id
,
4552 wpa_s
->p2p_pd_before_go_neg
,
4558 wpa_printf(MSG_DEBUG
, "P2P: Peer was found running GO%s -> "
4559 "try to join the group", join
? "" :
4562 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4563 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED
);
4564 wpa_s
->p2p_fallback_to_go_neg
= 1;
4568 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4569 wpa_s
->pending_join_iface_addr
);
4571 p2p_get_interface_addr(wpa_s
->global
->p2p
,
4572 wpa_s
->pending_join_dev_addr
,
4574 os_memcmp(iface_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) != 0
4575 && !wpa_bss_get_bssid(wpa_s
, wpa_s
->pending_join_iface_addr
)) {
4576 wpa_printf(MSG_DEBUG
, "P2P: Overwrite pending interface "
4577 "address for join from " MACSTR
" to " MACSTR
4578 " based on newly discovered P2P peer entry",
4579 MAC2STR(wpa_s
->pending_join_iface_addr
),
4580 MAC2STR(iface_addr
));
4581 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
,
4584 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4585 wpa_s
->pending_join_iface_addr
);
4588 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4589 "from P2P peer table: %d MHz", freq
);
4591 if (wpa_s
->p2p_join_ssid_len
) {
4592 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4593 MACSTR
" and SSID %s",
4594 MAC2STR(wpa_s
->pending_join_iface_addr
),
4595 wpa_ssid_txt(wpa_s
->p2p_join_ssid
,
4596 wpa_s
->p2p_join_ssid_len
));
4597 bss
= wpa_bss_get(wpa_s
, wpa_s
->pending_join_iface_addr
,
4598 wpa_s
->p2p_join_ssid
,
4599 wpa_s
->p2p_join_ssid_len
);
4602 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4603 MACSTR
, MAC2STR(wpa_s
->pending_join_iface_addr
));
4604 bss
= wpa_bss_get_bssid_latest(wpa_s
,
4605 wpa_s
->pending_join_iface_addr
);
4608 u8 dev_addr
[ETH_ALEN
];
4611 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4612 "from BSS table: %d MHz (SSID %s)", freq
,
4613 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
4614 if (p2p_parse_dev_addr((const u8
*) (bss
+ 1), bss
->ie_len
,
4616 os_memcmp(wpa_s
->pending_join_dev_addr
,
4617 wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0 &&
4618 os_memcmp(dev_addr
, wpa_s
->pending_join_dev_addr
,
4620 wpa_printf(MSG_DEBUG
,
4621 "P2P: Update target GO device address based on BSS entry: " MACSTR
" (was " MACSTR
")",
4623 MAC2STR(wpa_s
->pending_join_dev_addr
));
4624 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
,
4631 if (wpas_check_freq_conflict(wpa_s
, freq
) > 0) {
4632 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4633 P2P_EVENT_GROUP_FORMATION_FAILURE
4634 "reason=FREQ_CONFLICT");
4638 wpa_printf(MSG_DEBUG
, "P2P: Send Provision Discovery Request "
4639 "prior to joining an existing group (GO " MACSTR
4641 MAC2STR(wpa_s
->pending_join_dev_addr
), freq
);
4642 wpa_s
->pending_pd_before_join
= 1;
4644 switch (wpa_s
->pending_join_wps_method
) {
4645 case WPS_PIN_DISPLAY
:
4646 method
= WPS_CONFIG_KEYPAD
;
4648 case WPS_PIN_KEYPAD
:
4649 method
= WPS_CONFIG_DISPLAY
;
4652 method
= WPS_CONFIG_PUSHBUTTON
;
4659 if ((p2p_get_provisioning_info(wpa_s
->global
->p2p
,
4660 wpa_s
->pending_join_dev_addr
) ==
4663 * We have already performed provision discovery for
4664 * joining the group. Proceed directly to join
4665 * operation without duplicated provision discovery. */
4666 wpa_printf(MSG_DEBUG
, "P2P: Provision discovery "
4667 "with " MACSTR
" already done - proceed to "
4669 MAC2STR(wpa_s
->pending_join_dev_addr
));
4670 wpa_s
->pending_pd_before_join
= 0;
4674 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4675 wpa_s
->pending_join_dev_addr
,
4677 freq
, wpa_s
->user_initiated_pd
) < 0) {
4678 wpa_printf(MSG_DEBUG
, "P2P: Failed to send Provision "
4679 "Discovery Request before joining an "
4681 wpa_s
->pending_pd_before_join
= 0;
4687 wpa_printf(MSG_DEBUG
, "P2P: Failed to find BSS/GO - try again later");
4688 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4689 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
4690 wpas_p2p_check_join_scan_limit(wpa_s
);
4694 /* Start join operation immediately */
4695 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
4699 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
4700 const u8
*ssid
, size_t ssid_len
)
4703 struct wpa_driver_scan_params params
;
4704 struct wpabuf
*wps_ie
, *ies
;
4706 int freqs
[2] = { 0, 0 };
4708 os_memset(¶ms
, 0, sizeof(params
));
4710 /* P2P Wildcard SSID */
4711 params
.num_ssids
= 1;
4712 if (ssid
&& ssid_len
) {
4713 params
.ssids
[0].ssid
= ssid
;
4714 params
.ssids
[0].ssid_len
= ssid_len
;
4715 os_memcpy(wpa_s
->p2p_join_ssid
, ssid
, ssid_len
);
4716 wpa_s
->p2p_join_ssid_len
= ssid_len
;
4718 params
.ssids
[0].ssid
= (u8
*) P2P_WILDCARD_SSID
;
4719 params
.ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
4720 wpa_s
->p2p_join_ssid_len
= 0;
4723 wpa_s
->wps
->dev
.p2p
= 1;
4724 wps_ie
= wps_build_probe_req_ie(DEV_PW_DEFAULT
, &wpa_s
->wps
->dev
,
4725 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
, 0,
4727 if (wps_ie
== NULL
) {
4728 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4732 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
4733 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
4735 wpabuf_free(wps_ie
);
4736 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4739 wpabuf_put_buf(ies
, wps_ie
);
4740 wpabuf_free(wps_ie
);
4742 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
4744 params
.p2p_probe
= 1;
4745 params
.extra_ies
= wpabuf_head(ies
);
4746 params
.extra_ies_len
= wpabuf_len(ies
);
4751 * If freq is not provided, check the operating freq of the GO
4752 * and use a single channel scan on if possible.
4754 oper_freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4755 wpa_s
->pending_join_iface_addr
);
4761 params
.freqs
= freqs
;
4765 * Run a scan to update BSS table and start Provision Discovery once
4766 * the new scan results become available.
4768 ret
= wpa_drv_scan(wpa_s
, ¶ms
);
4770 os_get_reltime(&wpa_s
->scan_trigger_time
);
4771 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_join
;
4772 wpa_s
->own_scan_requested
= 1;
4778 wpa_printf(MSG_DEBUG
, "P2P: Failed to start scan for join - "
4780 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4781 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
4782 wpas_p2p_check_join_scan_limit(wpa_s
);
4787 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
)
4789 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
4790 wpas_p2p_join_scan_req(wpa_s
, 0, NULL
, 0);
4794 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
4795 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
4796 int auto_join
, int op_freq
,
4797 const u8
*ssid
, size_t ssid_len
)
4799 wpa_printf(MSG_DEBUG
, "P2P: Request to join existing group (iface "
4800 MACSTR
" dev " MACSTR
" op_freq=%d)%s",
4801 MAC2STR(iface_addr
), MAC2STR(dev_addr
), op_freq
,
4802 auto_join
? " (auto_join)" : "");
4803 if (ssid
&& ssid_len
) {
4804 wpa_printf(MSG_DEBUG
, "P2P: Group SSID specified: %s",
4805 wpa_ssid_txt(ssid
, ssid_len
));
4808 wpa_s
->p2p_auto_pd
= 0;
4809 wpa_s
->p2p_auto_join
= !!auto_join
;
4810 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
, ETH_ALEN
);
4811 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
, ETH_ALEN
);
4812 wpa_s
->pending_join_wps_method
= wps_method
;
4814 /* Make sure we are not running find during connection establishment */
4815 wpas_p2p_stop_find(wpa_s
);
4817 wpa_s
->p2p_join_scan_count
= 0;
4818 wpas_p2p_join_scan_req(wpa_s
, op_freq
, ssid
, ssid_len
);
4823 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
4824 const u8
*ssid
, size_t ssid_len
)
4826 struct wpa_supplicant
*group
;
4827 struct p2p_go_neg_results res
;
4828 struct wpa_bss
*bss
;
4830 group
= wpas_p2p_get_group_iface(wpa_s
, 0, 0);
4833 if (group
!= wpa_s
) {
4834 os_memcpy(group
->p2p_pin
, wpa_s
->p2p_pin
,
4835 sizeof(group
->p2p_pin
));
4836 group
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
4839 * Need to mark the current interface for p2p_group_formation
4840 * when a separate group interface is not used. This is needed
4841 * to allow p2p_cancel stop a pending p2p_connect-join.
4842 * wpas_p2p_init_group_interface() addresses this for the case
4843 * where a separate group interface is used.
4845 wpa_s
->global
->p2p_group_formation
= wpa_s
;
4848 group
->p2p_in_provisioning
= 1;
4849 group
->p2p_fallback_to_go_neg
= wpa_s
->p2p_fallback_to_go_neg
;
4851 os_memset(&res
, 0, sizeof(res
));
4852 os_memcpy(res
.peer_device_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
);
4853 os_memcpy(res
.peer_interface_addr
, wpa_s
->pending_join_iface_addr
,
4855 res
.wps_method
= wpa_s
->pending_join_wps_method
;
4856 if (freq
&& ssid
&& ssid_len
) {
4858 res
.ssid_len
= ssid_len
;
4859 os_memcpy(res
.ssid
, ssid
, ssid_len
);
4861 bss
= wpa_bss_get_bssid_latest(wpa_s
,
4862 wpa_s
->pending_join_iface_addr
);
4864 res
.freq
= bss
->freq
;
4865 res
.ssid_len
= bss
->ssid_len
;
4866 os_memcpy(res
.ssid
, bss
->ssid
, bss
->ssid_len
);
4867 wpa_printf(MSG_DEBUG
, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4869 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
4873 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
4874 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel prior to "
4876 wpa_drv_cancel_remain_on_channel(wpa_s
);
4877 wpa_s
->off_channel_freq
= 0;
4878 wpa_s
->roc_waiting_drv_freq
= 0;
4880 wpas_start_wps_enrollee(group
, &res
);
4883 * Allow a longer timeout for join-a-running-group than normal 15
4884 * second group formation timeout since the GO may not have authorized
4885 * our connection yet.
4887 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
4888 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout
,
4895 static int wpas_p2p_setup_freqs(struct wpa_supplicant
*wpa_s
, int freq
,
4896 int *force_freq
, int *pref_freq
, int go
,
4897 unsigned int *pref_freq_list
,
4898 unsigned int *num_pref_freq
)
4900 struct wpa_used_freq_data
*freqs
;
4901 int res
, best_freq
, num_unused
;
4902 unsigned int freq_in_use
= 0, num
, i
, max_pref_freq
;
4904 max_pref_freq
= *num_pref_freq
;
4907 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
4908 sizeof(struct wpa_used_freq_data
));
4912 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
4913 wpa_s
->num_multichan_concurrent
);
4916 * It is possible that the total number of used frequencies is bigger
4917 * than the number of frequencies used for P2P, so get the system wide
4918 * number of unused frequencies.
4920 num_unused
= wpas_p2p_num_unused_channels(wpa_s
);
4922 wpa_printf(MSG_DEBUG
,
4923 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4924 freq
, wpa_s
->num_multichan_concurrent
, num
, num_unused
);
4929 ret
= p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
4931 ret
= p2p_supported_freq_cli(wpa_s
->global
->p2p
, freq
);
4933 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
4934 ieee80211_is_dfs(freq
)) {
4936 * If freq is a DFS channel and DFS is offloaded
4937 * to the driver, allow P2P GO to use it.
4939 wpa_printf(MSG_DEBUG
,
4940 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4943 wpa_printf(MSG_DEBUG
,
4944 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4951 for (i
= 0; i
< num
; i
++) {
4952 if (freqs
[i
].freq
== freq
)
4956 if (num_unused
<= 0 && !freq_in_use
) {
4957 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4962 wpa_printf(MSG_DEBUG
, "P2P: Trying to force us to use the "
4963 "requested channel (%u MHz)", freq
);
4968 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
4970 if (!wpa_s
->conf
->num_p2p_pref_chan
&& *pref_freq
== 0) {
4971 enum wpa_driver_if_type iface_type
;
4974 iface_type
= WPA_IF_P2P_GO
;
4976 iface_type
= WPA_IF_P2P_CLIENT
;
4978 wpa_printf(MSG_DEBUG
, "P2P: best_freq=%d, go=%d",
4981 res
= wpa_drv_get_pref_freq_list(wpa_s
, iface_type
,
4984 if (!res
&& max_pref_freq
> 0) {
4985 *num_pref_freq
= max_pref_freq
;
4987 while (wpas_p2p_disallowed_freq(wpa_s
->global
,
4988 pref_freq_list
[i
]) &&
4989 i
< *num_pref_freq
) {
4990 wpa_printf(MSG_DEBUG
,
4991 "P2P: preferred_freq_list[%d]=%d is disallowed",
4992 i
, pref_freq_list
[i
]);
4995 if (i
!= *num_pref_freq
) {
4996 best_freq
= pref_freq_list
[i
];
4997 wpa_printf(MSG_DEBUG
,
4998 "P2P: Using preferred_freq_list[%d]=%d",
5001 wpa_printf(MSG_DEBUG
,
5002 "P2P: All driver preferred frequencies are disallowed for P2P use");
5006 wpa_printf(MSG_DEBUG
,
5007 "P2P: No preferred frequency list available");
5011 /* We have a candidate frequency to use */
5012 if (best_freq
> 0) {
5013 if (*pref_freq
== 0 && num_unused
> 0) {
5014 wpa_printf(MSG_DEBUG
, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5016 *pref_freq
= best_freq
;
5018 wpa_printf(MSG_DEBUG
, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5020 *force_freq
= best_freq
;
5022 } else if (num_unused
> 0) {
5023 wpa_printf(MSG_DEBUG
,
5024 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5027 wpa_printf(MSG_DEBUG
,
5028 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5042 * wpas_p2p_connect - Request P2P Group Formation to be started
5043 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5044 * @peer_addr: Address of the peer P2P Device
5045 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5046 * @persistent_group: Whether to create a persistent group
5047 * @auto_join: Whether to select join vs. GO Negotiation automatically
5048 * @join: Whether to join an existing group (as a client) instead of starting
5049 * Group Owner negotiation; @peer_addr is BSSID in that case
5050 * @auth: Whether to only authorize the connection instead of doing that and
5051 * initiating Group Owner negotiation
5052 * @go_intent: GO Intent or -1 to use default
5053 * @freq: Frequency for the group or 0 for auto-selection
5054 * @persistent_id: Persistent group credentials to use for forcing GO
5055 * parameters or -1 to generate new values (SSID/passphrase)
5056 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5057 * interoperability workaround when initiating group formation
5058 * @ht40: Start GO with 40 MHz channel width
5059 * @vht: Start GO with VHT support
5060 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5061 * failure, -2 on failure due to channel not currently available,
5062 * -3 if forced channel is not supported
5064 int wpas_p2p_connect(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
5065 const char *pin
, enum p2p_wps_method wps_method
,
5066 int persistent_group
, int auto_join
, int join
, int auth
,
5067 int go_intent
, int freq
, int persistent_id
, int pd
,
5070 int force_freq
= 0, pref_freq
= 0;
5072 enum wpa_driver_if_type iftype
;
5074 struct wpa_ssid
*ssid
= NULL
;
5075 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
5077 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5080 if (persistent_id
>= 0) {
5081 ssid
= wpa_config_get_network(wpa_s
->conf
, persistent_id
);
5082 if (ssid
== NULL
|| ssid
->disabled
!= 2 ||
5083 ssid
->mode
!= WPAS_MODE_P2P_GO
)
5087 os_free(wpa_s
->global
->add_psk
);
5088 wpa_s
->global
->add_psk
= NULL
;
5090 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
5091 wpa_s
->global
->pending_p2ps_group
= 0;
5092 wpa_s
->p2ps_method_config_any
= 0;
5095 go_intent
= wpa_s
->conf
->p2p_go_intent
;
5098 wpa_s
->p2p_long_listen
= 0;
5100 wpa_s
->p2p_wps_method
= wps_method
;
5101 wpa_s
->p2p_persistent_group
= !!persistent_group
;
5102 wpa_s
->p2p_persistent_id
= persistent_id
;
5103 wpa_s
->p2p_go_intent
= go_intent
;
5104 wpa_s
->p2p_connect_freq
= freq
;
5105 wpa_s
->p2p_fallback_to_go_neg
= 0;
5106 wpa_s
->p2p_pd_before_go_neg
= !!pd
;
5107 wpa_s
->p2p_go_ht40
= !!ht40
;
5108 wpa_s
->p2p_go_vht
= !!vht
;
5111 os_strlcpy(wpa_s
->p2p_pin
, pin
, sizeof(wpa_s
->p2p_pin
));
5112 else if (wps_method
== WPS_PIN_DISPLAY
) {
5113 ret
= wps_generate_pin();
5114 res
= os_snprintf(wpa_s
->p2p_pin
, sizeof(wpa_s
->p2p_pin
),
5116 if (os_snprintf_error(sizeof(wpa_s
->p2p_pin
), res
))
5117 wpa_s
->p2p_pin
[sizeof(wpa_s
->p2p_pin
) - 1] = '\0';
5118 wpa_printf(MSG_DEBUG
, "P2P: Randomly generated PIN: %s",
5121 wpa_s
->p2p_pin
[0] = '\0';
5123 if (join
|| auto_join
) {
5124 u8 iface_addr
[ETH_ALEN
], dev_addr
[ETH_ALEN
];
5126 wpa_printf(MSG_DEBUG
, "P2P: Authorize invitation to "
5127 "connect a running group from " MACSTR
,
5128 MAC2STR(peer_addr
));
5129 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
5132 os_memcpy(dev_addr
, peer_addr
, ETH_ALEN
);
5133 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, peer_addr
,
5135 os_memcpy(iface_addr
, peer_addr
, ETH_ALEN
);
5136 p2p_get_dev_addr(wpa_s
->global
->p2p
, peer_addr
,
5140 os_get_reltime(&wpa_s
->p2p_auto_started
);
5141 wpa_printf(MSG_DEBUG
, "P2P: Auto join started at "
5143 wpa_s
->p2p_auto_started
.sec
,
5144 wpa_s
->p2p_auto_started
.usec
);
5146 wpa_s
->user_initiated_pd
= 1;
5147 if (wpas_p2p_join(wpa_s
, iface_addr
, dev_addr
, wps_method
,
5148 auto_join
, freq
, NULL
, 0) < 0)
5153 size
= P2P_MAX_PREF_CHANNELS
;
5154 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
5155 go_intent
== 15, pref_freq_list
, &size
);
5158 wpas_p2p_set_own_freq_preference(wpa_s
,
5159 force_freq
? force_freq
: pref_freq
);
5161 p2p_set_own_pref_freq_list(wpa_s
->global
->p2p
, pref_freq_list
, size
);
5163 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
5165 if (wpa_s
->create_p2p_iface
) {
5166 /* Prepare to add a new interface for the group */
5167 iftype
= WPA_IF_P2P_GROUP
;
5168 if (go_intent
== 15)
5169 iftype
= WPA_IF_P2P_GO
;
5170 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
5171 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
5172 "interface for the group");
5176 if_addr
= wpa_s
->pending_interface_addr
;
5178 if_addr
= wpa_s
->own_addr
;
5179 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
5183 if (wpas_p2p_auth_go_neg(wpa_s
, peer_addr
, wps_method
,
5185 force_freq
, persistent_group
, ssid
,
5191 if (wpas_p2p_start_go_neg(wpa_s
, peer_addr
, wps_method
,
5192 go_intent
, if_addr
, force_freq
,
5193 persistent_group
, ssid
, pref_freq
) < 0) {
5194 if (wpa_s
->create_p2p_iface
)
5195 wpas_p2p_remove_pending_group_interface(wpa_s
);
5203 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5204 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5205 * @freq: Frequency of the channel in MHz
5206 * @duration: Duration of the stay on the channel in milliseconds
5208 * This callback is called when the driver indicates that it has started the
5209 * requested remain-on-channel duration.
5211 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5212 unsigned int freq
, unsigned int duration
)
5214 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5216 wpa_printf(MSG_DEBUG
, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
5217 wpa_s
->off_channel_freq
, wpa_s
->pending_listen_freq
,
5218 wpa_s
->roc_waiting_drv_freq
, freq
, duration
);
5219 if (wpa_s
->off_channel_freq
&&
5220 wpa_s
->off_channel_freq
== wpa_s
->pending_listen_freq
) {
5221 p2p_listen_cb(wpa_s
->global
->p2p
, wpa_s
->pending_listen_freq
,
5222 wpa_s
->pending_listen_duration
);
5223 wpa_s
->pending_listen_freq
= 0;
5225 wpa_printf(MSG_DEBUG
, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5226 wpa_s
->off_channel_freq
, wpa_s
->pending_listen_freq
,
5232 int wpas_p2p_listen_start(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
5234 /* Limit maximum Listen state time based on driver limitation. */
5235 if (timeout
> wpa_s
->max_remain_on_chan
)
5236 timeout
= wpa_s
->max_remain_on_chan
;
5238 return p2p_listen(wpa_s
->global
->p2p
, timeout
);
5243 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5244 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5245 * @freq: Frequency of the channel in MHz
5247 * This callback is called when the driver indicates that a remain-on-channel
5248 * operation has been completed, i.e., the duration on the requested channel
5251 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5254 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel callback "
5255 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5256 wpa_s
->p2p_long_listen
, offchannel_pending_action_tx(wpa_s
));
5257 wpas_p2p_listen_work_done(wpa_s
);
5258 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5260 if (wpa_s
->p2p_long_listen
> 0)
5261 wpa_s
->p2p_long_listen
-= wpa_s
->max_remain_on_chan
;
5262 if (p2p_listen_end(wpa_s
->global
->p2p
, freq
) > 0)
5263 return; /* P2P module started a new operation */
5264 if (offchannel_pending_action_tx(wpa_s
))
5266 if (wpa_s
->p2p_long_listen
> 0) {
5267 wpa_printf(MSG_DEBUG
, "P2P: Continuing long Listen state");
5268 wpas_p2p_listen_start(wpa_s
, wpa_s
->p2p_long_listen
);
5271 * When listen duration is over, stop listen & update p2p_state
5274 p2p_stop_listen(wpa_s
->global
->p2p
);
5280 * wpas_p2p_group_remove - Remove a P2P group
5281 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5282 * @ifname: Network interface name of the group interface or "*" to remove all
5284 * Returns: 0 on success, -1 on failure
5286 * This function is used to remove a P2P group. This can be used to disconnect
5287 * from a group in which the local end is a P2P Client or to end a P2P Group in
5288 * case the local end is the Group Owner. If a virtual network interface was
5289 * created for this group, that interface will be removed. Otherwise, only the
5290 * configured P2P group network will be removed from the interface.
5292 int wpas_p2p_group_remove(struct wpa_supplicant
*wpa_s
, const char *ifname
)
5294 struct wpa_global
*global
= wpa_s
->global
;
5295 struct wpa_supplicant
*calling_wpa_s
= wpa_s
;
5297 if (os_strcmp(ifname
, "*") == 0) {
5298 struct wpa_supplicant
*prev
;
5299 wpa_s
= global
->ifaces
;
5302 wpa_s
= wpa_s
->next
;
5303 if (prev
->p2p_group_interface
!=
5304 NOT_P2P_GROUP_INTERFACE
||
5305 (prev
->current_ssid
&&
5306 prev
->current_ssid
->p2p_group
))
5307 wpas_p2p_disconnect_safely(prev
, calling_wpa_s
);
5312 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
5313 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
5317 return wpas_p2p_disconnect_safely(wpa_s
, calling_wpa_s
);
5321 static int wpas_p2p_select_go_freq(struct wpa_supplicant
*wpa_s
, int freq
)
5326 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 2.4 GHz "
5328 if (wpa_s
->best_24_freq
> 0 &&
5329 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5330 wpa_s
->best_24_freq
)) {
5331 freq
= wpa_s
->best_24_freq
;
5332 wpa_printf(MSG_DEBUG
, "P2P: Use best 2.4 GHz band "
5333 "channel: %d MHz", freq
);
5335 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5337 freq
= 2412 + (r
% 3) * 25;
5338 wpa_printf(MSG_DEBUG
, "P2P: Use random 2.4 GHz band "
5339 "channel: %d MHz", freq
);
5344 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 5 GHz "
5346 if (wpa_s
->best_5_freq
> 0 &&
5347 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5348 wpa_s
->best_5_freq
)) {
5349 freq
= wpa_s
->best_5_freq
;
5350 wpa_printf(MSG_DEBUG
, "P2P: Use best 5 GHz band "
5351 "channel: %d MHz", freq
);
5353 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5355 freq
= 5180 + (r
% 4) * 20;
5356 if (!p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5357 wpa_printf(MSG_DEBUG
, "P2P: Could not select "
5358 "5 GHz channel for P2P group");
5361 wpa_printf(MSG_DEBUG
, "P2P: Use random 5 GHz band "
5362 "channel: %d MHz", freq
);
5366 if (freq
> 0 && !p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5367 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
5368 ieee80211_is_dfs(freq
)) {
5370 * If freq is a DFS channel and DFS is offloaded to the
5371 * driver, allow P2P GO to use it.
5373 wpa_printf(MSG_DEBUG
, "P2P: "
5374 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5378 wpa_printf(MSG_DEBUG
, "P2P: The forced channel for GO "
5379 "(%u MHz) is not supported for P2P uses",
5388 static int wpas_p2p_supported_freq_go(struct wpa_supplicant
*wpa_s
,
5389 const struct p2p_channels
*channels
,
5392 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, freq
) &&
5393 p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
) &&
5394 freq_included(wpa_s
, channels
, freq
))
5400 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant
*wpa_s
,
5401 struct p2p_go_neg_results
*params
,
5402 const struct p2p_channels
*channels
)
5406 /* first try some random selection of the social channels */
5407 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5410 for (i
= 0; i
< 3; i
++) {
5411 params
->freq
= 2412 + ((r
+ i
) % 3) * 25;
5412 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, params
->freq
))
5416 /* try all other channels in operating class 81 */
5417 for (i
= 0; i
< 11; i
++) {
5418 params
->freq
= 2412 + i
* 5;
5420 /* skip social channels; covered in the previous loop */
5421 if (params
->freq
== 2412 ||
5422 params
->freq
== 2437 ||
5423 params
->freq
== 2462)
5426 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, params
->freq
))
5430 /* try all channels in operating class 115 */
5431 for (i
= 0; i
< 4; i
++) {
5432 params
->freq
= 5180 + i
* 20;
5433 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5434 freq_included(wpa_s
, channels
, params
->freq
) &&
5435 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5439 /* try all channels in operating class 124 */
5440 for (i
= 0; i
< 4; i
++) {
5441 params
->freq
= 5745 + i
* 20;
5442 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5443 freq_included(wpa_s
, channels
, params
->freq
) &&
5444 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5448 /* try social channel class 180 channel 2 */
5449 params
->freq
= 58320 + 1 * 2160;
5450 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5451 freq_included(wpa_s
, channels
, params
->freq
) &&
5452 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5455 /* try all channels in reg. class 180 */
5456 for (i
= 0; i
< 4; i
++) {
5457 params
->freq
= 58320 + i
* 2160;
5458 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5459 freq_included(wpa_s
, channels
, params
->freq
) &&
5460 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5465 wpa_printf(MSG_DEBUG
, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5468 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz (no preference known)",
5473 static int wpas_p2p_init_go_params(struct wpa_supplicant
*wpa_s
,
5474 struct p2p_go_neg_results
*params
,
5475 int freq
, int ht40
, int vht
,
5476 const struct p2p_channels
*channels
)
5478 struct wpa_used_freq_data
*freqs
;
5480 unsigned int num
, i
;
5482 os_memset(params
, 0, sizeof(*params
));
5483 params
->role_go
= 1;
5484 params
->ht40
= ht40
;
5487 if (wpa_s
->p2p_group_common_freqs_num
)
5488 wpa_printf(MSG_DEBUG
, "P2P: %s called for an active GO",
5491 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
5492 sizeof(struct wpa_used_freq_data
));
5496 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
5497 wpa_s
->num_multichan_concurrent
);
5499 /* try using the forced freq */
5501 if (!wpas_p2p_supported_freq_go(wpa_s
, channels
, freq
)) {
5502 wpa_printf(MSG_DEBUG
,
5503 "P2P: Forced GO freq %d MHz not accepted",
5508 for (i
= 0; i
< num
; i
++) {
5509 if (freqs
[i
].freq
== freq
) {
5510 wpa_printf(MSG_DEBUG
,
5511 "P2P: forced freq (%d MHz) is also shared",
5513 params
->freq
= freq
;
5518 if (wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5519 wpa_printf(MSG_DEBUG
,
5520 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5525 wpa_printf(MSG_DEBUG
,
5526 "P2P: force GO freq (%d MHz) on a free channel",
5528 params
->freq
= freq
;
5532 /* consider using one of the shared frequencies */
5534 cand
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
5535 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5536 wpa_printf(MSG_DEBUG
,
5537 "P2P: Use shared freq (%d MHz) for GO",
5539 params
->freq
= cand
;
5543 /* try using one of the shared freqs */
5544 for (i
= 0; i
< num
; i
++) {
5545 if (wpas_p2p_supported_freq_go(wpa_s
, channels
,
5547 wpa_printf(MSG_DEBUG
,
5548 "P2P: Use shared freq (%d MHz) for GO",
5550 params
->freq
= freqs
[i
].freq
;
5556 if (wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5557 wpa_printf(MSG_DEBUG
,
5558 "P2P: Cannot force GO on any of the channels we are already using");
5562 /* try using the setting from the configuration file */
5563 if (wpa_s
->conf
->p2p_oper_reg_class
== 81 &&
5564 wpa_s
->conf
->p2p_oper_channel
>= 1 &&
5565 wpa_s
->conf
->p2p_oper_channel
<= 11 &&
5566 wpas_p2p_supported_freq_go(
5568 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5569 params
->freq
= 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5570 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5571 "frequency %d MHz", params
->freq
);
5575 if ((wpa_s
->conf
->p2p_oper_reg_class
== 115 ||
5576 wpa_s
->conf
->p2p_oper_reg_class
== 116 ||
5577 wpa_s
->conf
->p2p_oper_reg_class
== 117 ||
5578 wpa_s
->conf
->p2p_oper_reg_class
== 124 ||
5579 wpa_s
->conf
->p2p_oper_reg_class
== 125 ||
5580 wpa_s
->conf
->p2p_oper_reg_class
== 126 ||
5581 wpa_s
->conf
->p2p_oper_reg_class
== 127) &&
5582 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5584 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5585 params
->freq
= 5000 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5586 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5587 "frequency %d MHz", params
->freq
);
5591 /* Try using best channels */
5592 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5593 wpa_s
->best_overall_freq
> 0 &&
5594 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5595 wpa_s
->best_overall_freq
)) {
5596 params
->freq
= wpa_s
->best_overall_freq
;
5597 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best overall "
5598 "channel %d MHz", params
->freq
);
5602 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5603 wpa_s
->best_24_freq
> 0 &&
5604 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5605 wpa_s
->best_24_freq
)) {
5606 params
->freq
= wpa_s
->best_24_freq
;
5607 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 2.4 GHz "
5608 "channel %d MHz", params
->freq
);
5612 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5613 wpa_s
->best_5_freq
> 0 &&
5614 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5615 wpa_s
->best_5_freq
)) {
5616 params
->freq
= wpa_s
->best_5_freq
;
5617 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 5 GHz "
5618 "channel %d MHz", params
->freq
);
5622 /* try using preferred channels */
5623 cand
= p2p_get_pref_freq(wpa_s
->global
->p2p
, channels
);
5624 if (cand
&& wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5625 params
->freq
= cand
;
5626 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz from preferred "
5627 "channels", params
->freq
);
5631 /* Try using one of the group common freqs */
5632 if (wpa_s
->p2p_group_common_freqs
) {
5633 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++) {
5634 cand
= wpa_s
->p2p_group_common_freqs
[i
];
5635 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5636 params
->freq
= cand
;
5637 wpa_printf(MSG_DEBUG
,
5638 "P2P: Use freq %d MHz common with the peer",
5645 /* no preference, select some channel */
5646 wpas_p2p_select_go_freq_no_pref(wpa_s
, params
, channels
);
5648 if (params
->freq
== 0) {
5649 wpa_printf(MSG_DEBUG
, "P2P: did not find a freq for GO use");
5662 static struct wpa_supplicant
*
5663 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
5666 struct wpa_supplicant
*group_wpa_s
;
5668 if (!wpas_p2p_create_iface(wpa_s
)) {
5669 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use same interface for group "
5671 wpa_s
->p2p_first_connection_timeout
= 0;
5675 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
5676 WPA_IF_P2P_CLIENT
) < 0) {
5677 wpa_msg_global(wpa_s
, MSG_ERROR
,
5678 "P2P: Failed to add group interface");
5681 group_wpa_s
= wpas_p2p_init_group_interface(wpa_s
, go
);
5682 if (group_wpa_s
== NULL
) {
5683 wpa_msg_global(wpa_s
, MSG_ERROR
,
5684 "P2P: Failed to initialize group interface");
5685 wpas_p2p_remove_pending_group_interface(wpa_s
);
5689 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use separate group interface %s",
5690 group_wpa_s
->ifname
);
5691 group_wpa_s
->p2p_first_connection_timeout
= 0;
5697 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5698 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5699 * @persistent_group: Whether to create a persistent group
5700 * @freq: Frequency for the group or 0 to indicate no hardcoding
5701 * @ht40: Start GO with 40 MHz channel width
5702 * @vht: Start GO with VHT support
5703 * Returns: 0 on success, -1 on failure
5705 * This function creates a new P2P group with the local end as the Group Owner,
5706 * i.e., without using Group Owner Negotiation.
5708 int wpas_p2p_group_add(struct wpa_supplicant
*wpa_s
, int persistent_group
,
5709 int freq
, int ht40
, int vht
)
5711 struct p2p_go_neg_results params
;
5713 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5716 os_free(wpa_s
->global
->add_psk
);
5717 wpa_s
->global
->add_psk
= NULL
;
5719 /* Make sure we are not running find during connection establishment */
5720 wpa_printf(MSG_DEBUG
, "P2P: Stop any on-going P2P FIND");
5721 wpas_p2p_stop_find_oper(wpa_s
);
5723 freq
= wpas_p2p_select_go_freq(wpa_s
, freq
);
5727 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
, vht
, NULL
))
5730 !p2p_supported_freq_go(wpa_s
->global
->p2p
, params
.freq
)) {
5731 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
5732 ieee80211_is_dfs(params
.freq
)) {
5734 * If freq is a DFS channel and DFS is offloaded to the
5735 * driver, allow P2P GO to use it.
5737 wpa_printf(MSG_DEBUG
,
5738 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5739 __func__
, params
.freq
);
5741 wpa_printf(MSG_DEBUG
,
5742 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5747 p2p_go_params(wpa_s
->global
->p2p
, ¶ms
);
5748 params
.persistent_group
= persistent_group
;
5750 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, 0, 1);
5753 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
5759 static int wpas_start_p2p_client(struct wpa_supplicant
*wpa_s
,
5760 struct wpa_ssid
*params
, int addr_allocated
,
5763 struct wpa_ssid
*ssid
;
5765 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 0);
5768 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
5770 wpa_supplicant_ap_deinit(wpa_s
);
5772 ssid
= wpa_config_add_network(wpa_s
->conf
);
5775 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
5776 wpa_config_set_network_defaults(ssid
);
5777 ssid
->temporary
= 1;
5778 ssid
->proto
= WPA_PROTO_RSN
;
5779 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
5780 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
5781 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
5782 ssid
->ssid
= os_malloc(params
->ssid_len
);
5783 if (ssid
->ssid
== NULL
) {
5784 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
5787 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
5788 ssid
->ssid_len
= params
->ssid_len
;
5789 ssid
->p2p_group
= 1;
5790 ssid
->export_keys
= 1;
5791 if (params
->psk_set
) {
5792 os_memcpy(ssid
->psk
, params
->psk
, 32);
5795 if (params
->passphrase
)
5796 ssid
->passphrase
= os_strdup(params
->passphrase
);
5798 wpa_s
->show_group_started
= 1;
5799 wpa_s
->p2p_in_invitation
= 1;
5800 wpa_s
->p2p_invite_go_freq
= freq
;
5802 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
5804 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
5805 wpas_p2p_group_formation_timeout
,
5806 wpa_s
->parent
, NULL
);
5807 wpa_supplicant_select_network(wpa_s
, ssid
);
5813 int wpas_p2p_group_add_persistent(struct wpa_supplicant
*wpa_s
,
5814 struct wpa_ssid
*ssid
, int addr_allocated
,
5815 int force_freq
, int neg_freq
, int ht40
,
5816 int vht
, const struct p2p_channels
*channels
,
5817 int connection_timeout
)
5819 struct p2p_go_neg_results params
;
5822 if (ssid
->disabled
!= 2 || ssid
->ssid
== NULL
)
5825 if (wpas_get_p2p_group(wpa_s
, ssid
->ssid
, ssid
->ssid_len
, &go
) &&
5826 go
== (ssid
->mode
== WPAS_MODE_P2P_GO
)) {
5827 wpa_printf(MSG_DEBUG
, "P2P: Requested persistent group is "
5830 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
5831 wpa_s
->parent
, NULL
)) {
5833 * This can happen if Invitation Response frame was lost
5834 * and the peer (GO of a persistent group) tries to
5835 * invite us again. Reschedule the timeout to avoid
5836 * terminating the wait for the connection too early
5837 * since we now know that the peer is still trying to
5838 * invite us instead of having already started the GO.
5840 wpa_printf(MSG_DEBUG
,
5841 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5842 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
5843 wpas_p2p_group_formation_timeout
,
5844 wpa_s
->parent
, NULL
);
5849 os_free(wpa_s
->global
->add_psk
);
5850 wpa_s
->global
->add_psk
= NULL
;
5852 /* Make sure we are not running find during connection establishment */
5853 wpas_p2p_stop_find_oper(wpa_s
);
5855 wpa_s
->p2p_fallback_to_go_neg
= 0;
5857 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
5858 if (force_freq
> 0) {
5859 freq
= wpas_p2p_select_go_freq(wpa_s
, force_freq
);
5863 freq
= wpas_p2p_select_go_freq(wpa_s
, neg_freq
);
5865 (freq
> 0 && !freq_included(wpa_s
, channels
, freq
)))
5868 } else if (ssid
->mode
== WPAS_MODE_INFRA
) {
5870 if (freq
<= 0 || !freq_included(wpa_s
, channels
, freq
)) {
5871 struct os_reltime now
;
5872 struct wpa_bss
*bss
=
5873 wpa_bss_get_p2p_dev_addr(wpa_s
, ssid
->bssid
);
5875 os_get_reltime(&now
);
5877 !os_reltime_expired(&now
, &bss
->last_update
, 5) &&
5878 freq_included(wpa_s
, channels
, bss
->freq
))
5884 return wpas_start_p2p_client(wpa_s
, ssid
, addr_allocated
, freq
);
5889 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, ht40
, vht
, channels
))
5893 params
.psk_set
= ssid
->psk_set
;
5895 os_memcpy(params
.psk
, ssid
->psk
, sizeof(params
.psk
));
5896 if (ssid
->passphrase
) {
5897 if (os_strlen(ssid
->passphrase
) >= sizeof(params
.passphrase
)) {
5898 wpa_printf(MSG_ERROR
, "P2P: Invalid passphrase in "
5899 "persistent group");
5902 os_strlcpy(params
.passphrase
, ssid
->passphrase
,
5903 sizeof(params
.passphrase
));
5905 os_memcpy(params
.ssid
, ssid
->ssid
, ssid
->ssid_len
);
5906 params
.ssid_len
= ssid
->ssid_len
;
5907 params
.persistent_group
= 1;
5909 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 1);
5913 p2p_channels_to_freqs(channels
, params
.freq_list
, P2P_MAX_CHANNELS
);
5915 wpa_s
->p2p_first_connection_timeout
= connection_timeout
;
5916 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
5922 static void wpas_p2p_ie_update(void *ctx
, struct wpabuf
*beacon_ies
,
5923 struct wpabuf
*proberesp_ies
)
5925 struct wpa_supplicant
*wpa_s
= ctx
;
5926 if (wpa_s
->ap_iface
) {
5927 struct hostapd_data
*hapd
= wpa_s
->ap_iface
->bss
[0];
5928 if (!(hapd
->conf
->p2p
& P2P_GROUP_OWNER
)) {
5929 wpabuf_free(beacon_ies
);
5930 wpabuf_free(proberesp_ies
);
5934 wpabuf_free(hapd
->p2p_beacon_ie
);
5935 hapd
->p2p_beacon_ie
= beacon_ies
;
5937 wpabuf_free(hapd
->p2p_probe_resp_ie
);
5938 hapd
->p2p_probe_resp_ie
= proberesp_ies
;
5940 wpabuf_free(beacon_ies
);
5941 wpabuf_free(proberesp_ies
);
5943 wpa_supplicant_ap_update_beacon(wpa_s
);
5947 static void wpas_p2p_idle_update(void *ctx
, int idle
)
5949 struct wpa_supplicant
*wpa_s
= ctx
;
5950 if (!wpa_s
->ap_iface
)
5952 wpa_printf(MSG_DEBUG
, "P2P: GO - group %sidle", idle
? "" : "not ");
5954 if (wpa_s
->global
->p2p_fail_on_wps_complete
&&
5955 wpa_s
->p2p_in_provisioning
) {
5956 wpas_p2p_grpform_fail_after_wps(wpa_s
);
5959 wpas_p2p_set_group_idle_timeout(wpa_s
);
5961 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
5965 struct p2p_group
* wpas_p2p_group_init(struct wpa_supplicant
*wpa_s
,
5966 struct wpa_ssid
*ssid
)
5968 struct p2p_group
*group
;
5969 struct p2p_group_config
*cfg
;
5971 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5974 cfg
= os_zalloc(sizeof(*cfg
));
5978 if (ssid
->p2p_persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
5979 cfg
->persistent_group
= 2;
5980 else if (ssid
->p2p_persistent_group
)
5981 cfg
->persistent_group
= 1;
5982 os_memcpy(cfg
->interface_addr
, wpa_s
->own_addr
, ETH_ALEN
);
5983 if (wpa_s
->max_stations
&&
5984 wpa_s
->max_stations
< wpa_s
->conf
->max_num_sta
)
5985 cfg
->max_clients
= wpa_s
->max_stations
;
5987 cfg
->max_clients
= wpa_s
->conf
->max_num_sta
;
5988 os_memcpy(cfg
->ssid
, ssid
->ssid
, ssid
->ssid_len
);
5989 cfg
->ssid_len
= ssid
->ssid_len
;
5990 cfg
->freq
= ssid
->frequency
;
5991 cfg
->cb_ctx
= wpa_s
;
5992 cfg
->ie_update
= wpas_p2p_ie_update
;
5993 cfg
->idle_update
= wpas_p2p_idle_update
;
5995 group
= p2p_group_init(wpa_s
->global
->p2p
, cfg
);
5998 if (ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
5999 p2p_group_notif_formation_done(group
);
6000 wpa_s
->p2p_group
= group
;
6005 void wpas_p2p_wps_success(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6008 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
6010 if (!wpa_s
->p2p_in_provisioning
) {
6011 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS success event - P2P "
6012 "provisioning not in progress");
6016 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
6017 u8 go_dev_addr
[ETH_ALEN
];
6018 os_memcpy(go_dev_addr
, wpa_s
->bssid
, ETH_ALEN
);
6019 wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
6021 /* Clear any stored provisioning info */
6022 p2p_clear_provisioning_info(wpa_s
->global
->p2p
, go_dev_addr
);
6025 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
6027 wpa_s
->p2p_go_group_formation_completed
= 1;
6028 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
6030 * Use a separate timeout for initial data connection to
6031 * complete to allow the group to be removed automatically if
6032 * something goes wrong in this step before the P2P group idle
6033 * timeout mechanism is taken into use.
6035 wpa_dbg(wpa_s
, MSG_DEBUG
,
6036 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6037 P2P_MAX_INITIAL_CONN_WAIT
);
6038 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
6039 wpas_p2p_group_formation_timeout
,
6040 wpa_s
->parent
, NULL
);
6043 * Use a separate timeout for initial data connection to
6044 * complete to allow the group to be removed automatically if
6045 * the client does not complete data connection successfully.
6047 wpa_dbg(wpa_s
, MSG_DEBUG
,
6048 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6049 P2P_MAX_INITIAL_CONN_WAIT_GO
);
6050 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO
, 0,
6051 wpas_p2p_group_formation_timeout
,
6052 wpa_s
->parent
, NULL
);
6054 * Complete group formation on first successful data connection
6056 wpa_s
->p2p_go_group_formation_completed
= 0;
6058 if (wpa_s
->global
->p2p
)
6059 p2p_wps_success_cb(wpa_s
->global
->p2p
, peer_addr
);
6060 wpas_group_formation_completed(wpa_s
, 1, 0);
6064 void wpas_p2p_wps_failed(struct wpa_supplicant
*wpa_s
,
6065 struct wps_event_fail
*fail
)
6067 if (!wpa_s
->p2p_in_provisioning
) {
6068 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS fail event - P2P "
6069 "provisioning not in progress");
6073 if (wpa_s
->go_params
) {
6074 p2p_clear_provisioning_info(
6076 wpa_s
->go_params
->peer_device_addr
);
6079 wpas_notify_p2p_wps_failed(wpa_s
, fail
);
6081 if (wpa_s
== wpa_s
->global
->p2p_group_formation
) {
6083 * Allow some time for the failed WPS negotiation exchange to
6084 * complete, but remove the group since group formation cannot
6085 * succeed after provisioning failure.
6087 wpa_printf(MSG_DEBUG
, "P2P: WPS step failed during group formation - reject connection from timeout");
6088 wpa_s
->global
->p2p_fail_on_wps_complete
= 1;
6089 eloop_deplete_timeout(0, 50000,
6090 wpas_p2p_group_formation_timeout
,
6091 wpa_s
->parent
, NULL
);
6096 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant
*wpa_s
)
6098 if (!wpa_s
->global
->p2p_fail_on_wps_complete
||
6099 !wpa_s
->p2p_in_provisioning
)
6102 wpas_p2p_grpform_fail_after_wps(wpa_s
);
6108 int wpas_p2p_prov_disc(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6109 const char *config_method
,
6110 enum wpas_p2p_prov_disc_use use
,
6111 struct p2ps_provision
*p2ps_prov
)
6115 wpa_s
->global
->pending_p2ps_group
= 0;
6116 wpa_s
->p2p_fallback_to_go_neg
= 0;
6117 wpa_s
->pending_pd_use
= NORMAL_PD
;
6118 if (p2ps_prov
&& use
== WPAS_P2P_PD_FOR_ASP
) {
6119 p2ps_prov
->conncap
= p2ps_group_capability(
6120 wpa_s
, P2PS_SETUP_NONE
, p2ps_prov
->role
);
6121 wpa_printf(MSG_DEBUG
,
6122 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6123 __func__
, p2ps_prov
->conncap
,
6124 p2ps_prov
->adv_id
, p2ps_prov
->conncap
,
6125 p2ps_prov
->status
, p2ps_prov
->info
);
6128 } else if (os_strncmp(config_method
, "display", 7) == 0)
6129 config_methods
= WPS_CONFIG_DISPLAY
;
6130 else if (os_strncmp(config_method
, "keypad", 6) == 0)
6131 config_methods
= WPS_CONFIG_KEYPAD
;
6132 else if (os_strncmp(config_method
, "pbc", 3) == 0 ||
6133 os_strncmp(config_method
, "pushbutton", 10) == 0)
6134 config_methods
= WPS_CONFIG_PUSHBUTTON
;
6136 wpa_printf(MSG_DEBUG
, "P2P: Unknown config method");
6141 if (use
== WPAS_P2P_PD_AUTO
) {
6142 os_memcpy(wpa_s
->pending_join_dev_addr
, peer_addr
, ETH_ALEN
);
6143 wpa_s
->pending_pd_config_methods
= config_methods
;
6144 wpa_s
->p2p_auto_pd
= 1;
6145 wpa_s
->p2p_auto_join
= 0;
6146 wpa_s
->pending_pd_before_join
= 0;
6147 wpa_s
->auto_pd_scan_retry
= 0;
6148 wpas_p2p_stop_find(wpa_s
);
6149 wpa_s
->p2p_join_scan_count
= 0;
6150 os_get_reltime(&wpa_s
->p2p_auto_started
);
6151 wpa_printf(MSG_DEBUG
, "P2P: Auto PD started at %ld.%06ld",
6152 wpa_s
->p2p_auto_started
.sec
,
6153 wpa_s
->p2p_auto_started
.usec
);
6154 wpas_p2p_join_scan(wpa_s
, NULL
);
6158 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
) {
6163 return p2p_prov_disc_req(wpa_s
->global
->p2p
, peer_addr
, p2ps_prov
,
6164 config_methods
, use
== WPAS_P2P_PD_FOR_JOIN
,
6169 int wpas_p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
,
6172 return p2p_scan_result_text(ies
, ies_len
, buf
, end
);
6176 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant
*wpa_s
)
6178 if (!offchannel_pending_action_tx(wpa_s
))
6181 wpas_p2p_action_tx_clear(wpa_s
);
6183 wpa_printf(MSG_DEBUG
, "P2P: Drop pending Action TX due to new "
6184 "operation request");
6185 offchannel_clear_pending_action_tx(wpa_s
);
6189 int wpas_p2p_find(struct wpa_supplicant
*wpa_s
, unsigned int timeout
,
6190 enum p2p_discovery_type type
,
6191 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
6192 const u8
*dev_id
, unsigned int search_delay
,
6193 u8 seek_cnt
, const char **seek_string
, int freq
)
6195 wpas_p2p_clear_pending_action_tx(wpa_s
);
6196 wpa_s
->p2p_long_listen
= 0;
6198 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
||
6199 wpa_s
->p2p_in_provisioning
)
6202 wpa_supplicant_cancel_sched_scan(wpa_s
);
6204 return p2p_find(wpa_s
->global
->p2p
, timeout
, type
,
6205 num_req_dev_types
, req_dev_types
, dev_id
,
6206 search_delay
, seek_cnt
, seek_string
, freq
);
6210 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant
*wpa_s
,
6211 struct wpa_scan_results
*scan_res
)
6213 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
6215 if (wpa_s
->p2p_scan_work
) {
6216 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
6217 wpa_s
->p2p_scan_work
= NULL
;
6218 radio_work_done(work
);
6221 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6225 * Indicate that results have been processed so that the P2P module can
6226 * continue pending tasks.
6228 p2p_scan_res_handled(wpa_s
->global
->p2p
);
6232 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
)
6234 wpas_p2p_clear_pending_action_tx(wpa_s
);
6235 wpa_s
->p2p_long_listen
= 0;
6236 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
6237 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
6239 if (wpa_s
->global
->p2p
)
6240 p2p_stop_find(wpa_s
->global
->p2p
);
6242 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_handler
) {
6243 wpa_printf(MSG_DEBUG
,
6244 "P2P: Do not consider the scan results after stop_find");
6245 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore_search
;
6250 void wpas_p2p_stop_find(struct wpa_supplicant
*wpa_s
)
6252 wpas_p2p_stop_find_oper(wpa_s
);
6253 if (!wpa_s
->global
->pending_group_iface_for_p2ps
)
6254 wpas_p2p_remove_pending_group_interface(wpa_s
);
6258 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
6260 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
6261 wpa_s
->p2p_long_listen
= 0;
6265 int wpas_p2p_listen(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
6269 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6272 wpa_supplicant_cancel_sched_scan(wpa_s
);
6273 wpas_p2p_clear_pending_action_tx(wpa_s
);
6277 * This is a request for unlimited Listen state. However, at
6278 * least for now, this is mapped to a Listen state for one
6283 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
6284 wpa_s
->p2p_long_listen
= 0;
6287 * Stop previous find/listen operation to avoid trying to request a new
6288 * remain-on-channel operation while the driver is still running the
6291 if (wpa_s
->global
->p2p
)
6292 p2p_stop_find(wpa_s
->global
->p2p
);
6294 res
= wpas_p2p_listen_start(wpa_s
, timeout
* 1000);
6295 if (res
== 0 && timeout
* 1000 > wpa_s
->max_remain_on_chan
) {
6296 wpa_s
->p2p_long_listen
= timeout
* 1000;
6297 eloop_register_timeout(timeout
, 0,
6298 wpas_p2p_long_listen_timeout
,
6306 int wpas_p2p_assoc_req_ie(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
,
6307 u8
*buf
, size_t len
, int p2p_group
)
6309 struct wpabuf
*p2p_ie
;
6312 if (wpa_s
->global
->p2p_disabled
)
6315 * Advertize mandatory cross connection capability even on
6316 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6318 if (wpa_s
->conf
->p2p_disabled
&& p2p_group
)
6320 if (wpa_s
->global
->p2p
== NULL
)
6325 p2p_ie
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
6326 ret
= p2p_assoc_req_ie(wpa_s
->global
->p2p
, bss
->bssid
, buf
, len
,
6328 wpabuf_free(p2p_ie
);
6334 int wpas_p2p_probe_req_rx(struct wpa_supplicant
*wpa_s
, const u8
*addr
,
6335 const u8
*dst
, const u8
*bssid
,
6336 const u8
*ie
, size_t ie_len
,
6337 unsigned int rx_freq
, int ssi_signal
)
6339 if (wpa_s
->global
->p2p_disabled
)
6341 if (wpa_s
->global
->p2p
== NULL
)
6344 switch (p2p_probe_req_rx(wpa_s
->global
->p2p
, addr
, dst
, bssid
,
6345 ie
, ie_len
, rx_freq
)) {
6346 case P2P_PREQ_NOT_P2P
:
6347 wpas_notify_preq(wpa_s
, addr
, dst
, bssid
, ie
, ie_len
,
6350 case P2P_PREQ_MALFORMED
:
6351 case P2P_PREQ_NOT_LISTEN
:
6352 case P2P_PREQ_NOT_PROCESSED
:
6353 default: /* make gcc happy */
6355 case P2P_PREQ_PROCESSED
:
6361 void wpas_p2p_rx_action(struct wpa_supplicant
*wpa_s
, const u8
*da
,
6362 const u8
*sa
, const u8
*bssid
,
6363 u8 category
, const u8
*data
, size_t len
, int freq
)
6365 if (wpa_s
->global
->p2p_disabled
)
6367 if (wpa_s
->global
->p2p
== NULL
)
6370 p2p_rx_action(wpa_s
->global
->p2p
, da
, sa
, bssid
, category
, data
, len
,
6375 void wpas_p2p_scan_ie(struct wpa_supplicant
*wpa_s
, struct wpabuf
*ies
)
6377 if (wpa_s
->global
->p2p_disabled
)
6379 if (wpa_s
->global
->p2p
== NULL
)
6382 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
6386 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
)
6388 p2p_group_deinit(wpa_s
->p2p_group
);
6389 wpa_s
->p2p_group
= NULL
;
6391 wpa_s
->ap_configured_cb
= NULL
;
6392 wpa_s
->ap_configured_cb_ctx
= NULL
;
6393 wpa_s
->ap_configured_cb_data
= NULL
;
6394 wpa_s
->connect_without_scan
= NULL
;
6398 int wpas_p2p_reject(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
6400 wpa_s
->p2p_long_listen
= 0;
6402 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6405 return p2p_reject(wpa_s
->global
->p2p
, addr
);
6409 /* Invite to reinvoke a persistent group */
6410 int wpas_p2p_invite(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6411 struct wpa_ssid
*ssid
, const u8
*go_dev_addr
, int freq
,
6412 int ht40
, int vht
, int pref_freq
)
6414 enum p2p_invite_role role
;
6418 int no_pref_freq_given
= pref_freq
== 0;
6419 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
6421 wpa_s
->global
->p2p_invite_group
= NULL
;
6423 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
6425 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
6427 wpa_s
->p2p_persistent_go_freq
= freq
;
6428 wpa_s
->p2p_go_ht40
= !!ht40
;
6429 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6430 role
= P2P_INVITE_ROLE_GO
;
6431 if (peer_addr
== NULL
) {
6432 wpa_printf(MSG_DEBUG
, "P2P: Missing peer "
6433 "address in invitation command");
6436 if (wpas_p2p_create_iface(wpa_s
)) {
6437 if (wpas_p2p_add_group_interface(wpa_s
,
6438 WPA_IF_P2P_GO
) < 0) {
6439 wpa_printf(MSG_ERROR
, "P2P: Failed to "
6440 "allocate a new interface for the "
6444 bssid
= wpa_s
->pending_interface_addr
;
6446 bssid
= wpa_s
->own_addr
;
6448 role
= P2P_INVITE_ROLE_CLIENT
;
6449 peer_addr
= ssid
->bssid
;
6451 wpa_s
->pending_invite_ssid_id
= ssid
->id
;
6453 size
= P2P_MAX_PREF_CHANNELS
;
6454 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6455 role
== P2P_INVITE_ROLE_GO
,
6456 pref_freq_list
, &size
);
6460 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6463 if (wpa_s
->parent
->conf
->p2p_ignore_shared_freq
&&
6464 no_pref_freq_given
&& pref_freq
> 0 &&
6465 wpa_s
->num_multichan_concurrent
> 1 &&
6466 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
6467 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6473 * Stop any find/listen operations before invitation and possibly
6474 * connection establishment.
6476 wpas_p2p_stop_find_oper(wpa_s
);
6478 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6479 ssid
->ssid
, ssid
->ssid_len
, force_freq
, go_dev_addr
,
6484 /* Invite to join an active group */
6485 int wpas_p2p_invite_group(struct wpa_supplicant
*wpa_s
, const char *ifname
,
6486 const u8
*peer_addr
, const u8
*go_dev_addr
)
6488 struct wpa_global
*global
= wpa_s
->global
;
6489 enum p2p_invite_role role
;
6491 struct wpa_ssid
*ssid
;
6493 int freq
= 0, force_freq
= 0, pref_freq
= 0;
6495 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
6497 wpa_s
->p2p_persistent_go_freq
= 0;
6498 wpa_s
->p2p_go_ht40
= 0;
6499 wpa_s
->p2p_go_vht
= 0;
6501 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
6502 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
6505 if (wpa_s
== NULL
) {
6506 wpa_printf(MSG_DEBUG
, "P2P: Interface '%s' not found", ifname
);
6510 ssid
= wpa_s
->current_ssid
;
6512 wpa_printf(MSG_DEBUG
, "P2P: No current SSID to use for "
6517 wpa_s
->global
->p2p_invite_group
= wpa_s
;
6518 persistent
= ssid
->p2p_persistent_group
&&
6519 wpas_p2p_get_persistent(wpa_s
->parent
, peer_addr
,
6520 ssid
->ssid
, ssid
->ssid_len
);
6522 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6523 role
= P2P_INVITE_ROLE_ACTIVE_GO
;
6524 bssid
= wpa_s
->own_addr
;
6525 if (go_dev_addr
== NULL
)
6526 go_dev_addr
= wpa_s
->global
->p2p_dev_addr
;
6527 freq
= ssid
->frequency
;
6529 role
= P2P_INVITE_ROLE_CLIENT
;
6530 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
) {
6531 wpa_printf(MSG_DEBUG
, "P2P: Not associated - cannot "
6532 "invite to current group");
6535 bssid
= wpa_s
->bssid
;
6536 if (go_dev_addr
== NULL
&&
6537 !is_zero_ether_addr(wpa_s
->go_dev_addr
))
6538 go_dev_addr
= wpa_s
->go_dev_addr
;
6539 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6540 (int) wpa_s
->assoc_freq
;
6542 wpa_s
->parent
->pending_invite_ssid_id
= -1;
6544 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6547 size
= P2P_MAX_PREF_CHANNELS
;
6548 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6549 role
== P2P_INVITE_ROLE_ACTIVE_GO
,
6550 pref_freq_list
, &size
);
6553 wpas_p2p_set_own_freq_preference(wpa_s
, force_freq
);
6555 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6556 ssid
->ssid
, ssid
->ssid_len
, force_freq
,
6557 go_dev_addr
, persistent
, pref_freq
, -1);
6561 void wpas_p2p_completed(struct wpa_supplicant
*wpa_s
)
6563 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
6564 u8 go_dev_addr
[ETH_ALEN
];
6565 int network_id
= -1;
6571 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
) {
6572 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
6573 wpa_s
->parent
, NULL
);
6576 if (!wpa_s
->show_group_started
|| !ssid
)
6579 wpa_s
->show_group_started
= 0;
6581 os_memset(go_dev_addr
, 0, ETH_ALEN
);
6582 if (ssid
->bssid_set
)
6583 os_memcpy(go_dev_addr
, ssid
->bssid
, ETH_ALEN
);
6584 persistent
= wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
6586 os_memcpy(wpa_s
->go_dev_addr
, go_dev_addr
, ETH_ALEN
);
6588 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
6589 wpa_s
->global
->p2p_group_formation
= NULL
;
6591 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6592 (int) wpa_s
->assoc_freq
;
6595 if (wpa_sm_get_p2p_ip_addr(wpa_s
->wpa
, ip
) == 0) {
6598 res
= os_snprintf(ip_addr
, sizeof(ip_addr
),
6599 " ip_addr=%u.%u.%u.%u "
6600 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6601 ip
[0], ip
[1], ip
[2], ip
[3],
6602 ip
[4], ip
[5], ip
[6], ip
[7],
6603 ip
[8], ip
[9], ip
[10], ip
[11]);
6604 if (os_snprintf_error(sizeof(ip_addr
), res
))
6608 wpas_p2p_group_started(wpa_s
, 0, ssid
, freq
,
6609 ssid
->passphrase
== NULL
&& ssid
->psk_set
?
6611 ssid
->passphrase
, go_dev_addr
, persistent
,
6615 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
6618 network_id
= ssid
->id
;
6619 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 1);
6623 int wpas_p2p_presence_req(struct wpa_supplicant
*wpa_s
, u32 duration1
,
6624 u32 interval1
, u32 duration2
, u32 interval2
)
6628 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6631 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
||
6632 wpa_s
->current_ssid
== NULL
||
6633 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
6636 ret
= p2p_presence_req(wpa_s
->global
->p2p
, wpa_s
->bssid
,
6637 wpa_s
->own_addr
, wpa_s
->assoc_freq
,
6638 duration1
, interval1
, duration2
, interval2
);
6640 wpa_s
->waiting_presence_resp
= 1;
6646 int wpas_p2p_ext_listen(struct wpa_supplicant
*wpa_s
, unsigned int period
,
6647 unsigned int interval
)
6649 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6652 return p2p_ext_listen(wpa_s
->global
->p2p
, period
, interval
);
6656 static int wpas_p2p_is_client(struct wpa_supplicant
*wpa_s
)
6658 if (wpa_s
->current_ssid
== NULL
) {
6660 * current_ssid can be cleared when P2P client interface gets
6661 * disconnected, so assume this interface was used as P2P
6666 return wpa_s
->current_ssid
->p2p_group
&&
6667 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
;
6671 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
)
6673 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
6675 if (wpa_s
->conf
->p2p_group_idle
== 0 && !wpas_p2p_is_client(wpa_s
)) {
6676 wpa_printf(MSG_DEBUG
, "P2P: Ignore group idle timeout - "
6681 wpa_printf(MSG_DEBUG
, "P2P: Group idle timeout reached - terminate "
6683 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_IDLE_TIMEOUT
);
6687 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
)
6691 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
6692 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
6694 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
6697 timeout
= wpa_s
->conf
->p2p_group_idle
;
6698 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
&&
6699 (timeout
== 0 || timeout
> P2P_MAX_CLIENT_IDLE
))
6700 timeout
= P2P_MAX_CLIENT_IDLE
;
6706 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
)
6707 timeout
= 0; /* special client mode no-timeout */
6712 if (wpa_s
->p2p_in_provisioning
) {
6714 * Use the normal group formation timeout during the
6715 * provisioning phase to avoid terminating this process too
6716 * early due to group idle timeout.
6718 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
6719 "during provisioning");
6723 if (wpa_s
->show_group_started
) {
6725 * Use the normal group formation timeout between the end of
6726 * the provisioning phase and completion of 4-way handshake to
6727 * avoid terminating this process too early due to group idle
6730 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
6731 "while waiting for initial 4-way handshake to "
6736 wpa_printf(MSG_DEBUG
, "P2P: Set P2P group idle timeout to %u seconds",
6738 eloop_register_timeout(timeout
, 0, wpas_p2p_group_idle_timeout
,
6743 /* Returns 1 if the interface was removed */
6744 int wpas_p2p_deauth_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
6745 u16 reason_code
, const u8
*ie
, size_t ie_len
,
6746 int locally_generated
)
6748 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6751 if (!locally_generated
)
6752 p2p_deauth_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
6755 if (reason_code
== WLAN_REASON_DEAUTH_LEAVING
&& !locally_generated
&&
6756 wpa_s
->current_ssid
&&
6757 wpa_s
->current_ssid
->p2p_group
&&
6758 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
) {
6759 wpa_printf(MSG_DEBUG
, "P2P: GO indicated that the P2P Group "
6760 "session is ending");
6761 if (wpas_p2p_group_delete(wpa_s
,
6762 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
)
6771 void wpas_p2p_disassoc_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
6772 u16 reason_code
, const u8
*ie
, size_t ie_len
,
6773 int locally_generated
)
6775 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6778 if (!locally_generated
)
6779 p2p_disassoc_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
6784 void wpas_p2p_update_config(struct wpa_supplicant
*wpa_s
)
6786 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
6791 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
6794 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_NAME
)
6795 p2p_set_dev_name(p2p
, wpa_s
->conf
->device_name
);
6797 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_TYPE
)
6798 p2p_set_pri_dev_type(p2p
, wpa_s
->conf
->device_type
);
6801 (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_CONFIG_METHODS
))
6802 p2p_set_config_methods(p2p
, wpa_s
->wps
->config_methods
);
6804 if (wpa_s
->wps
&& (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_UUID
))
6805 p2p_set_uuid(p2p
, wpa_s
->wps
->uuid
);
6807 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_WPS_STRING
) {
6808 p2p_set_manufacturer(p2p
, wpa_s
->conf
->manufacturer
);
6809 p2p_set_model_name(p2p
, wpa_s
->conf
->model_name
);
6810 p2p_set_model_number(p2p
, wpa_s
->conf
->model_number
);
6811 p2p_set_serial_number(p2p
, wpa_s
->conf
->serial_number
);
6814 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_SEC_DEVICE_TYPE
)
6815 p2p_set_sec_dev_types(p2p
,
6816 (void *) wpa_s
->conf
->sec_device_type
,
6817 wpa_s
->conf
->num_sec_device_types
);
6819 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_VENDOR_EXTENSION
) {
6821 p2p_remove_wps_vendor_extensions(p2p
);
6822 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
6823 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
6825 p2p_add_wps_vendor_extension(
6826 p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
6830 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
6831 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
6833 country
[0] = wpa_s
->conf
->country
[0];
6834 country
[1] = wpa_s
->conf
->country
[1];
6836 p2p_set_country(p2p
, country
);
6839 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_SSID_POSTFIX
) {
6840 p2p_set_ssid_postfix(p2p
, (u8
*) wpa_s
->conf
->p2p_ssid_postfix
,
6841 wpa_s
->conf
->p2p_ssid_postfix
?
6842 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
) :
6846 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_INTRA_BSS
)
6847 p2p_set_intra_bss_dist(p2p
, wpa_s
->conf
->p2p_intra_bss
);
6849 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_LISTEN_CHANNEL
) {
6850 u8 reg_class
, channel
;
6855 if (wpa_s
->conf
->p2p_listen_reg_class
&&
6856 wpa_s
->conf
->p2p_listen_channel
) {
6857 reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
6858 channel
= wpa_s
->conf
->p2p_listen_channel
;
6863 * Pick one of the social channels randomly as the
6866 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
6869 channel
= 1 + (r
% 3) * 5;
6872 ret
= p2p_set_listen_channel(p2p
, reg_class
, channel
,
6875 wpa_printf(MSG_ERROR
, "P2P: Own listen channel update "
6878 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_OPER_CHANNEL
) {
6879 u8 op_reg_class
, op_channel
, cfg_op_channel
;
6882 if (wpa_s
->conf
->p2p_oper_reg_class
&&
6883 wpa_s
->conf
->p2p_oper_channel
) {
6884 op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
6885 op_channel
= wpa_s
->conf
->p2p_oper_channel
;
6890 * Use random operation channel from (1, 6, 11)
6891 *if no other preference is indicated.
6893 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
6896 op_channel
= 1 + (r
% 3) * 5;
6899 ret
= p2p_set_oper_channel(p2p
, op_reg_class
, op_channel
,
6902 wpa_printf(MSG_ERROR
, "P2P: Own oper channel update "
6906 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PREF_CHAN
) {
6907 if (p2p_set_pref_chan(p2p
, wpa_s
->conf
->num_p2p_pref_chan
,
6908 wpa_s
->conf
->p2p_pref_chan
) < 0) {
6909 wpa_printf(MSG_ERROR
, "P2P: Preferred channel list "
6913 if (p2p_set_no_go_freq(p2p
, &wpa_s
->conf
->p2p_no_go_freq
) < 0) {
6914 wpa_printf(MSG_ERROR
, "P2P: No GO channel list "
6919 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PASSPHRASE_LEN
)
6920 p2p_set_passphrase_len(p2p
, wpa_s
->conf
->p2p_passphrase_len
);
6924 int wpas_p2p_set_noa(struct wpa_supplicant
*wpa_s
, u8 count
, int start
,
6927 if (!wpa_s
->ap_iface
)
6929 return hostapd_p2p_set_noa(wpa_s
->ap_iface
->bss
[0], count
, start
,
6934 int wpas_p2p_set_cross_connect(struct wpa_supplicant
*wpa_s
, int enabled
)
6936 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6939 wpa_s
->global
->cross_connection
= enabled
;
6940 p2p_set_cross_connect(wpa_s
->global
->p2p
, enabled
);
6943 struct wpa_supplicant
*iface
;
6945 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
6947 if (iface
->cross_connect_enabled
== 0)
6950 iface
->cross_connect_enabled
= 0;
6951 iface
->cross_connect_in_use
= 0;
6952 wpa_msg_global(iface
->parent
, MSG_INFO
,
6953 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
6955 iface
->cross_connect_uplink
);
6963 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant
*uplink
)
6965 struct wpa_supplicant
*iface
;
6967 if (!uplink
->global
->cross_connection
)
6970 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
6971 if (!iface
->cross_connect_enabled
)
6973 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
6976 if (iface
->ap_iface
== NULL
)
6978 if (iface
->cross_connect_in_use
)
6981 iface
->cross_connect_in_use
= 1;
6982 wpa_msg_global(iface
->parent
, MSG_INFO
,
6983 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
6984 iface
->ifname
, iface
->cross_connect_uplink
);
6989 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant
*uplink
)
6991 struct wpa_supplicant
*iface
;
6993 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
6994 if (!iface
->cross_connect_enabled
)
6996 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
6999 if (!iface
->cross_connect_in_use
)
7002 wpa_msg_global(iface
->parent
, MSG_INFO
,
7003 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
7004 iface
->ifname
, iface
->cross_connect_uplink
);
7005 iface
->cross_connect_in_use
= 0;
7010 void wpas_p2p_notif_connected(struct wpa_supplicant
*wpa_s
)
7012 if (wpa_s
->ap_iface
|| wpa_s
->current_ssid
== NULL
||
7013 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
7014 wpa_s
->cross_connect_disallowed
)
7015 wpas_p2p_disable_cross_connect(wpa_s
);
7017 wpas_p2p_enable_cross_connect(wpa_s
);
7018 if (!wpa_s
->ap_iface
&&
7019 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
7020 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
7024 void wpas_p2p_notif_disconnected(struct wpa_supplicant
*wpa_s
)
7026 wpas_p2p_disable_cross_connect(wpa_s
);
7027 if (!wpa_s
->ap_iface
&&
7028 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout
,
7030 wpas_p2p_set_group_idle_timeout(wpa_s
);
7034 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
)
7036 struct wpa_supplicant
*iface
;
7038 if (!wpa_s
->global
->cross_connection
)
7041 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7044 if (iface
->drv_flags
&
7045 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)
7047 if ((iface
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
) &&
7048 iface
!= wpa_s
->parent
)
7051 wpa_s
->cross_connect_enabled
= 1;
7052 os_strlcpy(wpa_s
->cross_connect_uplink
, iface
->ifname
,
7053 sizeof(wpa_s
->cross_connect_uplink
));
7054 wpa_printf(MSG_DEBUG
, "P2P: Enable cross connection from "
7055 "%s to %s whenever uplink is available",
7056 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
7058 if (iface
->ap_iface
|| iface
->current_ssid
== NULL
||
7059 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
7060 iface
->cross_connect_disallowed
||
7061 iface
->wpa_state
!= WPA_COMPLETED
)
7064 wpa_s
->cross_connect_in_use
= 1;
7065 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
7066 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
7067 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
7073 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant
*wpa_s
)
7075 if (wpa_s
->p2p_group_interface
!= P2P_GROUP_INTERFACE_CLIENT
&&
7076 !wpa_s
->p2p_in_provisioning
)
7077 return 0; /* not P2P client operation */
7079 wpa_printf(MSG_DEBUG
, "P2P: Terminate connection due to WPS PBC "
7081 if (wpa_s
!= wpa_s
->parent
)
7082 wpa_msg_ctrl(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_OVERLAP
);
7083 wpas_p2p_group_formation_failed(wpa_s
, 0);
7088 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx
, void *timeout_ctx
)
7090 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7091 wpas_p2p_notif_pbc_overlap(wpa_s
);
7095 void wpas_p2p_update_channel_list(struct wpa_supplicant
*wpa_s
,
7096 enum wpas_p2p_channel_update_trig trig
)
7098 struct p2p_channels chan
, cli_chan
;
7099 struct wpa_used_freq_data
*freqs
= NULL
;
7100 unsigned int num
= wpa_s
->num_multichan_concurrent
;
7102 if (wpa_s
->global
== NULL
|| wpa_s
->global
->p2p
== NULL
)
7105 freqs
= os_calloc(num
, sizeof(struct wpa_used_freq_data
));
7109 num
= get_shared_radio_freqs_data(wpa_s
, freqs
, num
);
7111 os_memset(&chan
, 0, sizeof(chan
));
7112 os_memset(&cli_chan
, 0, sizeof(cli_chan
));
7113 if (wpas_p2p_setup_channels(wpa_s
, &chan
, &cli_chan
)) {
7114 wpa_printf(MSG_ERROR
, "P2P: Failed to update supported "
7119 p2p_update_channel_list(wpa_s
->global
->p2p
, &chan
, &cli_chan
);
7121 wpas_p2p_optimize_listen_channel(wpa_s
, freqs
, num
);
7124 * The used frequencies map changed, so it is possible that a GO is
7125 * using a channel that is no longer valid for P2P use. It is also
7126 * possible that due to policy consideration, it would be preferable to
7127 * move it to a frequency already used by other station interfaces.
7129 wpas_p2p_consider_moving_gos(wpa_s
, freqs
, num
, trig
);
7135 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant
*wpa_s
,
7136 struct wpa_scan_results
*scan_res
)
7138 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
7142 int wpas_p2p_cancel(struct wpa_supplicant
*wpa_s
)
7144 struct wpa_global
*global
= wpa_s
->global
;
7148 if (global
->p2p
== NULL
)
7151 wpa_printf(MSG_DEBUG
, "P2P: Request to cancel group formation");
7153 if (wpa_s
->pending_interface_name
[0] &&
7154 !is_zero_ether_addr(wpa_s
->pending_interface_addr
))
7157 peer
= p2p_get_go_neg_peer(global
->p2p
);
7159 wpa_printf(MSG_DEBUG
, "P2P: Unauthorize pending GO Neg peer "
7160 MACSTR
, MAC2STR(peer
));
7161 p2p_unauthorize(global
->p2p
, peer
);
7165 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_join
) {
7166 wpa_printf(MSG_DEBUG
, "P2P: Stop pending scan for join");
7167 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore
;
7171 if (wpa_s
->pending_pd_before_join
) {
7172 wpa_printf(MSG_DEBUG
, "P2P: Stop pending PD before join");
7173 wpa_s
->pending_pd_before_join
= 0;
7177 wpas_p2p_stop_find(wpa_s
);
7179 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
7180 if (wpa_s
== global
->p2p_group_formation
&&
7181 (wpa_s
->p2p_in_provisioning
||
7182 wpa_s
->parent
->pending_interface_type
==
7183 WPA_IF_P2P_CLIENT
)) {
7184 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in group "
7185 "formation found - cancelling",
7188 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7189 wpa_s
->parent
, NULL
);
7190 if (wpa_s
->p2p_in_provisioning
) {
7191 wpas_group_formation_completed(wpa_s
, 0, 0);
7194 wpas_p2p_group_delete(wpa_s
,
7195 P2P_GROUP_REMOVAL_REQUESTED
);
7197 } else if (wpa_s
->p2p_in_invitation
) {
7198 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in invitation found - cancelling",
7201 wpas_p2p_group_formation_failed(wpa_s
, 0);
7206 wpa_printf(MSG_DEBUG
, "P2P: No ongoing group formation found");
7214 void wpas_p2p_interface_unavailable(struct wpa_supplicant
*wpa_s
)
7216 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
7219 wpa_printf(MSG_DEBUG
, "P2P: Remove group due to driver resource not "
7220 "being available anymore");
7221 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_UNAVAILABLE
);
7225 void wpas_p2p_update_best_channels(struct wpa_supplicant
*wpa_s
,
7226 int freq_24
, int freq_5
, int freq_overall
)
7228 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
7231 p2p_set_best_channels(p2p
, freq_24
, freq_5
, freq_overall
);
7235 int wpas_p2p_unauthorize(struct wpa_supplicant
*wpa_s
, const char *addr
)
7238 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
7243 if (hwaddr_aton(addr
, peer
))
7246 return p2p_unauthorize(p2p
, peer
);
7251 * wpas_p2p_disconnect - Disconnect from a P2P Group
7252 * @wpa_s: Pointer to wpa_supplicant data
7253 * Returns: 0 on success, -1 on failure
7255 * This can be used to disconnect from a group in which the local end is a P2P
7256 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7257 * virtual network interface was created for this group, that interface will be
7258 * removed. Otherwise, only the configured P2P group network will be removed
7259 * from the interface.
7261 int wpas_p2p_disconnect(struct wpa_supplicant
*wpa_s
)
7267 return wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_REQUESTED
) < 0 ?
7272 int wpas_p2p_in_progress(struct wpa_supplicant
*wpa_s
)
7276 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7279 ret
= p2p_in_progress(wpa_s
->global
->p2p
);
7282 * Check whether there is an ongoing WPS provisioning step (or
7283 * other parts of group formation) on another interface since
7284 * p2p_in_progress() does not report this to avoid issues for
7285 * scans during such provisioning step.
7287 if (wpa_s
->global
->p2p_group_formation
&&
7288 wpa_s
->global
->p2p_group_formation
!= wpa_s
) {
7289 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Another interface (%s) "
7290 "in group formation",
7291 wpa_s
->global
->p2p_group_formation
->ifname
);
7296 if (!ret
&& wpa_s
->global
->p2p_go_wait_client
.sec
) {
7297 struct os_reltime now
;
7298 os_get_reltime(&now
);
7299 if (os_reltime_expired(&now
, &wpa_s
->global
->p2p_go_wait_client
,
7300 P2P_MAX_INITIAL_CONN_WAIT_GO
)) {
7301 /* Wait for the first client has expired */
7302 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
7304 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Waiting for initial client connection during group formation");
7313 void wpas_p2p_network_removed(struct wpa_supplicant
*wpa_s
,
7314 struct wpa_ssid
*ssid
)
7316 if (wpa_s
->p2p_in_provisioning
&& ssid
->p2p_group
&&
7317 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7318 wpa_s
->parent
, NULL
) > 0) {
7320 * Remove the network by scheduling the group formation
7321 * timeout to happen immediately. The teardown code
7322 * needs to be scheduled to run asynch later so that we
7323 * don't delete data from under ourselves unexpectedly.
7324 * Calling wpas_p2p_group_formation_timeout directly
7325 * causes a series of crashes in WPS failure scenarios.
7327 wpa_printf(MSG_DEBUG
, "P2P: Canceled group formation due to "
7328 "P2P group network getting removed");
7329 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
7330 wpa_s
->parent
, NULL
);
7335 struct wpa_ssid
* wpas_p2p_get_persistent(struct wpa_supplicant
*wpa_s
,
7336 const u8
*addr
, const u8
*ssid
,
7342 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
7343 if (s
->disabled
!= 2)
7346 (ssid_len
!= s
->ssid_len
||
7347 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0))
7350 if (s
->mode
== WPAS_MODE_P2P_GO
)
7354 if (os_memcmp(s
->bssid
, addr
, ETH_ALEN
) == 0)
7355 return s
; /* peer is GO in the persistent group */
7356 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->p2p_client_list
== NULL
)
7358 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
7359 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
7360 addr
, ETH_ALEN
) == 0)
7361 return s
; /* peer is P2P client in persistent
7370 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant
*wpa_s
,
7373 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7374 wpa_s
->parent
, NULL
) > 0) {
7376 * This can happen if WPS provisioning step is not terminated
7377 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7378 * peer was able to connect, there is no need to time out group
7379 * formation after this, though. In addition, this is used with
7380 * the initial connection wait on the GO as a separate formation
7381 * timeout and as such, expected to be hit after the initial WPS
7382 * provisioning step.
7384 wpa_printf(MSG_DEBUG
, "P2P: Canceled P2P group formation timeout on data connection");
7386 if (!wpa_s
->p2p_go_group_formation_completed
&&
7387 !wpa_s
->group_formation_reported
) {
7389 * GO has not yet notified group formation success since
7390 * the WPS step was not completed cleanly. Do that
7391 * notification now since the P2P Client was able to
7392 * connect and as such, must have received the
7393 * credential from the WPS step.
7395 if (wpa_s
->global
->p2p
)
7396 p2p_wps_success_cb(wpa_s
->global
->p2p
, addr
);
7397 wpas_group_formation_completed(wpa_s
, 1, 0);
7400 if (!wpa_s
->p2p_go_group_formation_completed
) {
7401 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Marking group formation completed on GO on first data connection");
7402 wpa_s
->p2p_go_group_formation_completed
= 1;
7403 wpa_s
->global
->p2p_group_formation
= NULL
;
7404 wpa_s
->p2p_in_provisioning
= 0;
7405 wpa_s
->p2p_in_invitation
= 0;
7407 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
7410 wpas_p2p_add_persistent_group_client(wpa_s
, addr
);
7414 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
7417 struct wpa_supplicant
*group
= wpa_s
;
7420 if (wpa_s
->global
->p2p_group_formation
)
7421 group
= wpa_s
->global
->p2p_group_formation
;
7422 wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
7423 offchannel_send_action_done(wpa_s
);
7425 ret
= wpas_p2p_group_delete(group
, P2P_GROUP_REMOVAL_SILENT
);
7426 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Fall back to GO Negotiation");
7427 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
, wpa_s
->p2p_pin
,
7428 wpa_s
->p2p_wps_method
, wpa_s
->p2p_persistent_group
, 0,
7429 0, 0, wpa_s
->p2p_go_intent
, wpa_s
->p2p_connect_freq
,
7430 wpa_s
->p2p_persistent_id
,
7431 wpa_s
->p2p_pd_before_go_neg
,
7438 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant
*wpa_s
)
7442 if (!wpa_s
->p2p_fallback_to_go_neg
||
7443 wpa_s
->p2p_in_provisioning
<= 5)
7446 if (wpas_p2p_peer_go(wpa_s
, wpa_s
->pending_join_dev_addr
) > 0)
7447 return 0; /* peer operating as a GO */
7449 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: GO not found for p2p_connect-auto - "
7450 "fallback to GO Negotiation");
7451 wpa_msg_global(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_FALLBACK_TO_GO_NEG
7452 "reason=GO-not-found");
7453 res
= wpas_p2p_fallback_to_go_neg(wpa_s
, 1);
7455 return res
== 1 ? 2 : 1;
7459 unsigned int wpas_p2p_search_delay(struct wpa_supplicant
*wpa_s
)
7461 struct wpa_supplicant
*ifs
;
7463 if (wpa_s
->wpa_state
> WPA_SCANNING
) {
7464 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search delay due to "
7465 "concurrent operation",
7466 wpa_s
->conf
->p2p_search_delay
);
7467 return wpa_s
->conf
->p2p_search_delay
;
7470 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
7472 if (ifs
!= wpa_s
&& ifs
->wpa_state
> WPA_SCANNING
) {
7473 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search "
7474 "delay due to concurrent operation on "
7476 wpa_s
->conf
->p2p_search_delay
,
7478 return wpa_s
->conf
->p2p_search_delay
;
7486 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant
*wpa_s
,
7487 struct wpa_ssid
*s
, const u8
*addr
,
7490 struct psk_list_entry
*psk
, *tmp
;
7493 dl_list_for_each_safe(psk
, tmp
, &s
->psk_list
, struct psk_list_entry
,
7495 if ((iface_addr
&& !psk
->p2p
&&
7496 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0) ||
7497 (!iface_addr
&& psk
->p2p
&&
7498 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0)) {
7499 wpa_dbg(wpa_s
, MSG_DEBUG
,
7500 "P2P: Remove persistent group PSK list entry for "
7502 MAC2STR(psk
->addr
), psk
->p2p
);
7503 dl_list_del(&psk
->list
);
7513 void wpas_p2p_new_psk_cb(struct wpa_supplicant
*wpa_s
, const u8
*mac_addr
,
7514 const u8
*p2p_dev_addr
,
7515 const u8
*psk
, size_t psk_len
)
7517 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
7518 struct wpa_ssid
*persistent
;
7519 struct psk_list_entry
*p
, *last
;
7521 if (psk_len
!= sizeof(p
->psk
))
7525 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
7526 " p2p_dev_addr=" MACSTR
,
7527 MAC2STR(mac_addr
), MAC2STR(p2p_dev_addr
));
7528 if (is_zero_ether_addr(p2p_dev_addr
))
7529 p2p_dev_addr
= NULL
;
7531 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
,
7535 if (ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
7536 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: new_psk_cb during group formation");
7537 /* To be added to persistent group once created */
7538 if (wpa_s
->global
->add_psk
== NULL
) {
7539 wpa_s
->global
->add_psk
= os_zalloc(sizeof(*p
));
7540 if (wpa_s
->global
->add_psk
== NULL
)
7543 p
= wpa_s
->global
->add_psk
;
7546 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7549 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7551 os_memcpy(p
->psk
, psk
, psk_len
);
7555 if (ssid
->mode
!= WPAS_MODE_P2P_GO
|| !ssid
->p2p_persistent_group
) {
7556 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Ignore new_psk_cb on not-persistent GO");
7560 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
7563 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not find persistent group information to store the new PSK");
7567 p
= os_zalloc(sizeof(*p
));
7572 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7575 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7577 os_memcpy(p
->psk
, psk
, psk_len
);
7579 if (dl_list_len(&persistent
->psk_list
) > P2P_MAX_STORED_CLIENTS
&&
7580 (last
= dl_list_last(&persistent
->psk_list
,
7581 struct psk_list_entry
, list
))) {
7582 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove oldest PSK entry for "
7583 MACSTR
" (p2p=%u) to make room for a new one",
7584 MAC2STR(last
->addr
), last
->p2p
);
7585 dl_list_del(&last
->list
);
7589 wpas_p2p_remove_psk_entry(wpa_s
->parent
, persistent
,
7590 p2p_dev_addr
? p2p_dev_addr
: mac_addr
,
7591 p2p_dev_addr
== NULL
);
7593 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for p2p_dev_addr="
7594 MACSTR
, MAC2STR(p2p_dev_addr
));
7596 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for addr=" MACSTR
,
7599 dl_list_add(&persistent
->psk_list
, &p
->list
);
7601 if (wpa_s
->parent
->conf
->update_config
&&
7602 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
7603 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
7607 static void wpas_p2p_remove_psk(struct wpa_supplicant
*wpa_s
,
7608 struct wpa_ssid
*s
, const u8
*addr
,
7613 res
= wpas_p2p_remove_psk_entry(wpa_s
, s
, addr
, iface_addr
);
7614 if (res
> 0 && wpa_s
->conf
->update_config
&&
7615 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
))
7616 wpa_dbg(wpa_s
, MSG_DEBUG
,
7617 "P2P: Failed to update configuration");
7621 static void wpas_p2p_remove_client_go(struct wpa_supplicant
*wpa_s
,
7622 const u8
*peer
, int iface_addr
)
7624 struct hostapd_data
*hapd
;
7625 struct hostapd_wpa_psk
*psk
, *prev
, *rem
;
7626 struct sta_info
*sta
;
7628 if (wpa_s
->ap_iface
== NULL
|| wpa_s
->current_ssid
== NULL
||
7629 wpa_s
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
)
7632 /* Remove per-station PSK entry */
7633 hapd
= wpa_s
->ap_iface
->bss
[0];
7635 psk
= hapd
->conf
->ssid
.wpa_psk
;
7637 if ((iface_addr
&& os_memcmp(peer
, psk
->addr
, ETH_ALEN
) == 0) ||
7639 os_memcmp(peer
, psk
->p2p_dev_addr
, ETH_ALEN
) == 0)) {
7640 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove operating group PSK entry for "
7641 MACSTR
" iface_addr=%d",
7642 MAC2STR(peer
), iface_addr
);
7644 prev
->next
= psk
->next
;
7646 hapd
->conf
->ssid
.wpa_psk
= psk
->next
;
7656 /* Disconnect from group */
7658 sta
= ap_get_sta(hapd
, peer
);
7660 sta
= ap_get_sta_p2p(hapd
, peer
);
7662 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disconnect peer " MACSTR
7663 " (iface_addr=%d) from group",
7664 MAC2STR(peer
), iface_addr
);
7665 hostapd_drv_sta_deauth(hapd
, sta
->addr
,
7666 WLAN_REASON_DEAUTH_LEAVING
);
7667 ap_sta_deauthenticate(hapd
, sta
, WLAN_REASON_DEAUTH_LEAVING
);
7672 void wpas_p2p_remove_client(struct wpa_supplicant
*wpa_s
, const u8
*peer
,
7676 struct wpa_supplicant
*w
;
7677 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
7679 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove client " MACSTR
, MAC2STR(peer
));
7681 /* Remove from any persistent group */
7682 for (s
= p2p_wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
7683 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
7686 wpas_remove_persistent_peer(p2p_wpa_s
, s
, peer
, 0);
7687 wpas_p2p_remove_psk(p2p_wpa_s
, s
, peer
, iface_addr
);
7690 /* Remove from any operating group */
7691 for (w
= wpa_s
->global
->ifaces
; w
; w
= w
->next
)
7692 wpas_p2p_remove_client_go(w
, peer
, iface_addr
);
7696 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
)
7698 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7699 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_PSK_FAILURE
);
7703 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
)
7705 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7707 wpa_printf(MSG_DEBUG
, "P2P: Frequency conflict - terminate group");
7708 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_FREQ_CONFLICT
);
7712 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant
*wpa_s
, int freq
,
7713 struct wpa_ssid
*ssid
)
7715 struct wpa_supplicant
*iface
;
7717 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7718 if (!iface
->current_ssid
||
7719 iface
->current_ssid
->frequency
== freq
||
7720 (iface
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
&&
7721 !iface
->current_ssid
->p2p_group
))
7724 /* Remove the connection with least priority */
7725 if (!wpas_is_p2p_prioritized(iface
)) {
7726 /* STA connection has priority over existing
7727 * P2P connection, so remove the interface. */
7728 wpa_printf(MSG_DEBUG
, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7729 eloop_register_timeout(0, 0,
7730 wpas_p2p_group_freq_conflict
,
7732 /* If connection in progress is P2P connection, do not
7733 * proceed for the connection. */
7739 /* P2P connection has priority, disable the STA network
7741 wpa_supplicant_disable_network(wpa_s
->global
->ifaces
,
7743 wpa_msg(wpa_s
->global
->ifaces
, MSG_INFO
,
7744 WPA_EVENT_FREQ_CONFLICT
" id=%d", ssid
->id
);
7745 os_memset(wpa_s
->global
->ifaces
->pending_bssid
, 0,
7747 /* If P2P connection is in progress, continue
7760 int wpas_p2p_4way_hs_failed(struct wpa_supplicant
*wpa_s
)
7762 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
7764 if (ssid
== NULL
|| !ssid
->p2p_group
)
7767 if (wpa_s
->p2p_last_4way_hs_fail
&&
7768 wpa_s
->p2p_last_4way_hs_fail
== ssid
) {
7769 u8 go_dev_addr
[ETH_ALEN
];
7770 struct wpa_ssid
*persistent
;
7772 if (wpas_p2p_persistent_group(wpa_s
, go_dev_addr
,
7774 ssid
->ssid_len
) <= 0) {
7775 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7779 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7780 MACSTR
, MAC2STR(go_dev_addr
));
7781 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, go_dev_addr
,
7784 if (persistent
== NULL
|| persistent
->mode
!= WPAS_MODE_INFRA
) {
7785 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No matching persistent group stored");
7788 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
7789 P2P_EVENT_PERSISTENT_PSK_FAIL
"%d",
7792 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
7794 * Remove the group from a timeout to avoid issues with caller
7795 * continuing to use the interface if this is on a P2P group
7798 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal
,
7803 wpa_s
->p2p_last_4way_hs_fail
= ssid
;
7808 #ifdef CONFIG_WPS_NFC
7810 static struct wpabuf
* wpas_p2p_nfc_handover(int ndef
, struct wpabuf
*wsc
,
7818 wpa_printf(MSG_DEBUG
, "P2P: No p2p buffer for handover");
7822 wsc_len
= wsc
? wpabuf_len(wsc
) : 0;
7823 ret
= wpabuf_alloc(2 + wsc_len
+ 2 + wpabuf_len(p2p
));
7830 wpabuf_put_be16(ret
, wsc_len
);
7832 wpabuf_put_buf(ret
, wsc
);
7833 wpabuf_put_be16(ret
, wpabuf_len(p2p
));
7834 wpabuf_put_buf(ret
, p2p
);
7838 wpa_hexdump_buf(MSG_DEBUG
,
7839 "P2P: Generated NFC connection handover message", ret
);
7843 tmp
= ndef_build_p2p(ret
);
7846 wpa_printf(MSG_DEBUG
, "P2P: Failed to NDEF encapsulate handover request");
7856 static int wpas_p2p_cli_freq(struct wpa_supplicant
*wpa_s
,
7857 struct wpa_ssid
**ssid
, u8
*go_dev_addr
)
7859 struct wpa_supplicant
*iface
;
7862 os_memset(go_dev_addr
, 0, ETH_ALEN
);
7865 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7866 if (iface
->wpa_state
< WPA_ASSOCIATING
||
7867 iface
->current_ssid
== NULL
|| iface
->assoc_freq
== 0 ||
7868 !iface
->current_ssid
->p2p_group
||
7869 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
7872 *ssid
= iface
->current_ssid
;
7874 os_memcpy(go_dev_addr
, iface
->go_dev_addr
, ETH_ALEN
);
7875 return iface
->assoc_freq
;
7881 struct wpabuf
* wpas_p2p_nfc_handover_req(struct wpa_supplicant
*wpa_s
,
7884 struct wpabuf
*wsc
, *p2p
;
7885 struct wpa_ssid
*ssid
;
7886 u8 go_dev_addr
[ETH_ALEN
];
7887 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
7889 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
) {
7890 wpa_printf(MSG_DEBUG
, "P2P: P2P disabled - cannot build handover request");
7894 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
7895 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
7896 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0) {
7897 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No DH key available for handover request");
7901 if (cli_freq
== 0) {
7902 wsc
= wps_build_nfc_handover_req_p2p(
7903 wpa_s
->parent
->wps
, wpa_s
->conf
->wps_nfc_dh_pubkey
);
7906 p2p
= p2p_build_nfc_handover_req(wpa_s
->global
->p2p
, cli_freq
,
7907 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
7908 ssid
? ssid
->ssid_len
: 0);
7910 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
7914 struct wpabuf
* wpas_p2p_nfc_handover_sel(struct wpa_supplicant
*wpa_s
,
7917 struct wpabuf
*wsc
, *p2p
;
7918 struct wpa_ssid
*ssid
;
7919 u8 go_dev_addr
[ETH_ALEN
];
7920 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
7922 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7925 if (!tag
&& wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
7926 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
7927 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
7930 if (cli_freq
== 0) {
7931 wsc
= wps_build_nfc_handover_sel_p2p(
7933 tag
? wpa_s
->conf
->wps_nfc_dev_pw_id
:
7934 DEV_PW_NFC_CONNECTION_HANDOVER
,
7935 wpa_s
->conf
->wps_nfc_dh_pubkey
,
7936 tag
? wpa_s
->conf
->wps_nfc_dev_pw
: NULL
);
7939 p2p
= p2p_build_nfc_handover_sel(wpa_s
->global
->p2p
, cli_freq
,
7940 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
7941 ssid
? ssid
->ssid_len
: 0);
7943 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
7947 static int wpas_p2p_nfc_join_group(struct wpa_supplicant
*wpa_s
,
7948 struct p2p_nfc_params
*params
)
7950 wpa_printf(MSG_DEBUG
, "P2P: Initiate join-group based on NFC "
7951 "connection handover (freq=%d)",
7954 if (params
->go_freq
&& params
->go_ssid_len
) {
7955 wpa_s
->p2p_wps_method
= WPS_NFC
;
7956 wpa_s
->pending_join_wps_method
= WPS_NFC
;
7957 os_memset(wpa_s
->pending_join_iface_addr
, 0, ETH_ALEN
);
7958 os_memcpy(wpa_s
->pending_join_dev_addr
, params
->go_dev_addr
,
7960 return wpas_p2p_join_start(wpa_s
, params
->go_freq
,
7962 params
->go_ssid_len
);
7965 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
7966 WPS_NFC
, 0, 0, 1, 0, wpa_s
->conf
->p2p_go_intent
,
7967 params
->go_freq
, -1, 0, 1, 1);
7971 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant
*wpa_s
,
7972 struct p2p_nfc_params
*params
, int tag
)
7974 int res
, persistent
;
7975 struct wpa_ssid
*ssid
;
7977 wpa_printf(MSG_DEBUG
, "P2P: Authorize join-group based on NFC "
7978 "connection handover");
7979 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
7980 ssid
= wpa_s
->current_ssid
;
7983 if (ssid
->mode
!= WPAS_MODE_P2P_GO
)
7985 if (wpa_s
->ap_iface
== NULL
)
7989 if (wpa_s
== NULL
) {
7990 wpa_printf(MSG_DEBUG
, "P2P: Could not find GO interface");
7994 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
7995 DEV_PW_NFC_CONNECTION_HANDOVER
&&
7996 !wpa_s
->parent
->p2p_oob_dev_pw
) {
7997 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
8000 res
= wpas_ap_wps_add_nfc_pw(
8001 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
8002 wpa_s
->parent
->p2p_oob_dev_pw
,
8003 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
8004 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
8009 wpa_printf(MSG_DEBUG
, "P2P: Negotiated handover - wait for peer to join without invitation");
8013 if (!params
->peer
||
8014 !(params
->peer
->dev_capab
& P2P_DEV_CAPAB_INVITATION_PROCEDURE
))
8017 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invite peer " MACSTR
8018 " to join", MAC2STR(params
->peer
->p2p_device_addr
));
8020 wpa_s
->global
->p2p_invite_group
= wpa_s
;
8021 persistent
= ssid
->p2p_persistent_group
&&
8022 wpas_p2p_get_persistent(wpa_s
->parent
,
8023 params
->peer
->p2p_device_addr
,
8024 ssid
->ssid
, ssid
->ssid_len
);
8025 wpa_s
->parent
->pending_invite_ssid_id
= -1;
8027 return p2p_invite(wpa_s
->global
->p2p
, params
->peer
->p2p_device_addr
,
8028 P2P_INVITE_ROLE_ACTIVE_GO
, wpa_s
->own_addr
,
8029 ssid
->ssid
, ssid
->ssid_len
, ssid
->frequency
,
8030 wpa_s
->global
->p2p_dev_addr
, persistent
, 0,
8031 wpa_s
->parent
->p2p_oob_dev_pw_id
);
8035 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant
*wpa_s
,
8036 struct p2p_nfc_params
*params
,
8039 wpa_printf(MSG_DEBUG
, "P2P: Initiate GO Negotiation based on NFC "
8040 "connection handover");
8041 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
8042 WPS_NFC
, 0, 0, 0, 0, wpa_s
->conf
->p2p_go_intent
,
8043 forced_freq
, -1, 0, 1, 1);
8047 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant
*wpa_s
,
8048 struct p2p_nfc_params
*params
,
8053 wpa_printf(MSG_DEBUG
, "P2P: Authorize GO Negotiation based on NFC "
8054 "connection handover");
8055 res
= wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
8056 WPS_NFC
, 0, 0, 0, 1, wpa_s
->conf
->p2p_go_intent
,
8057 forced_freq
, -1, 0, 1, 1);
8061 res
= wpas_p2p_listen(wpa_s
, 60);
8063 p2p_unauthorize(wpa_s
->global
->p2p
,
8064 params
->peer
->p2p_device_addr
);
8071 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant
*wpa_s
,
8072 const struct wpabuf
*data
,
8073 int sel
, int tag
, int forced_freq
)
8075 const u8
*pos
, *end
;
8077 struct p2p_nfc_params params
;
8080 os_memset(¶ms
, 0, sizeof(params
));
8083 wpa_hexdump_buf(MSG_DEBUG
, "P2P: Received NFC tag payload", data
);
8085 pos
= wpabuf_head(data
);
8086 end
= pos
+ wpabuf_len(data
);
8088 if (end
- pos
< 2) {
8089 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of WSC "
8093 len
= WPA_GET_BE16(pos
);
8095 if (len
> end
- pos
) {
8096 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for WSC "
8100 params
.wsc_attr
= pos
;
8101 params
.wsc_len
= len
;
8104 if (end
- pos
< 2) {
8105 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of P2P "
8109 len
= WPA_GET_BE16(pos
);
8111 if (len
> end
- pos
) {
8112 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for P2P "
8116 params
.p2p_attr
= pos
;
8117 params
.p2p_len
= len
;
8120 wpa_hexdump(MSG_DEBUG
, "P2P: WSC attributes",
8121 params
.wsc_attr
, params
.wsc_len
);
8122 wpa_hexdump(MSG_DEBUG
, "P2P: P2P attributes",
8123 params
.p2p_attr
, params
.p2p_len
);
8125 wpa_hexdump(MSG_DEBUG
,
8126 "P2P: Ignored extra data after P2P attributes",
8130 res
= p2p_process_nfc_connection_handover(wpa_s
->global
->p2p
, ¶ms
);
8134 if (params
.next_step
== NO_ACTION
)
8137 if (params
.next_step
== BOTH_GO
) {
8138 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_BOTH_GO
"peer=" MACSTR
,
8139 MAC2STR(params
.peer
->p2p_device_addr
));
8143 if (params
.next_step
== PEER_CLIENT
) {
8144 if (!is_zero_ether_addr(params
.go_dev_addr
)) {
8145 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
8146 "peer=" MACSTR
" freq=%d go_dev_addr=" MACSTR
8148 MAC2STR(params
.peer
->p2p_device_addr
),
8150 MAC2STR(params
.go_dev_addr
),
8151 wpa_ssid_txt(params
.go_ssid
,
8152 params
.go_ssid_len
));
8154 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
8155 "peer=" MACSTR
" freq=%d",
8156 MAC2STR(params
.peer
->p2p_device_addr
),
8162 if (wpas_p2p_cli_freq(wpa_s
, NULL
, NULL
)) {
8163 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_WHILE_CLIENT
"peer="
8164 MACSTR
, MAC2STR(params
.peer
->p2p_device_addr
));
8168 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
8169 wpa_s
->p2p_oob_dev_pw
= NULL
;
8171 if (params
.oob_dev_pw_len
< WPS_OOB_PUBKEY_HASH_LEN
+ 2) {
8172 wpa_printf(MSG_DEBUG
, "P2P: No peer OOB Dev Pw "
8177 id
= WPA_GET_BE16(params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
);
8178 wpa_printf(MSG_DEBUG
, "P2P: Peer OOB Dev Pw %u", id
);
8179 wpa_hexdump(MSG_DEBUG
, "P2P: Peer OOB Public Key hash",
8180 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
8181 os_memcpy(wpa_s
->p2p_peer_oob_pubkey_hash
,
8182 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
8183 wpa_s
->p2p_peer_oob_pk_hash_known
= 1;
8187 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invalid "
8188 "peer OOB Device Password Id %u", id
);
8191 wpa_printf(MSG_DEBUG
, "P2P: Static handover - use peer OOB "
8192 "Device Password Id %u", id
);
8193 wpa_hexdump_key(MSG_DEBUG
, "P2P: Peer OOB Device Password",
8194 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
8195 params
.oob_dev_pw_len
-
8196 WPS_OOB_PUBKEY_HASH_LEN
- 2);
8197 wpa_s
->p2p_oob_dev_pw_id
= id
;
8198 wpa_s
->p2p_oob_dev_pw
= wpabuf_alloc_copy(
8199 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
8200 params
.oob_dev_pw_len
-
8201 WPS_OOB_PUBKEY_HASH_LEN
- 2);
8202 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
8205 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
8206 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
8207 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
8210 wpa_printf(MSG_DEBUG
, "P2P: Using abbreviated WPS handshake "
8211 "without Device Password");
8212 wpa_s
->p2p_oob_dev_pw_id
= DEV_PW_NFC_CONNECTION_HANDOVER
;
8215 switch (params
.next_step
) {
8219 /* already covered above */
8222 return wpas_p2p_nfc_join_group(wpa_s
, ¶ms
);
8224 return wpas_p2p_nfc_auth_join(wpa_s
, ¶ms
, tag
);
8226 return wpas_p2p_nfc_init_go_neg(wpa_s
, ¶ms
, forced_freq
);
8228 /* TODO: use own OOB Dev Pw */
8229 return wpas_p2p_nfc_resp_go_neg(wpa_s
, ¶ms
, forced_freq
);
8236 int wpas_p2p_nfc_tag_process(struct wpa_supplicant
*wpa_s
,
8237 const struct wpabuf
*data
, int forced_freq
)
8239 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8242 return wpas_p2p_nfc_connection_handover(wpa_s
, data
, 1, 1, forced_freq
);
8246 int wpas_p2p_nfc_report_handover(struct wpa_supplicant
*wpa_s
, int init
,
8247 const struct wpabuf
*req
,
8248 const struct wpabuf
*sel
, int forced_freq
)
8253 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8256 wpa_printf(MSG_DEBUG
, "NFC: P2P connection handover reported");
8258 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Req",
8259 wpabuf_head(req
), wpabuf_len(req
));
8260 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Sel",
8261 wpabuf_head(sel
), wpabuf_len(sel
));
8263 wpa_printf(MSG_DEBUG
, "NFC: Forced freq %d", forced_freq
);
8264 tmp
= ndef_parse_p2p(init
? sel
: req
);
8266 wpa_printf(MSG_DEBUG
, "P2P: Could not parse NDEF");
8270 ret
= wpas_p2p_nfc_connection_handover(wpa_s
, tmp
, init
, 0,
8278 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant
*wpa_s
, int enabled
)
8281 int go_intent
= wpa_s
->conf
->p2p_go_intent
;
8282 struct wpa_supplicant
*iface
;
8284 if (wpa_s
->global
->p2p
== NULL
)
8288 wpa_printf(MSG_DEBUG
, "P2P: Disable use of own NFC Tag");
8289 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
8291 if (!iface
->ap_iface
)
8293 hostapd_wps_nfc_token_disable(iface
->ap_iface
->bss
[0]);
8295 p2p_set_authorized_oob_dev_pw_id(wpa_s
->global
->p2p
, 0,
8297 if (wpa_s
->p2p_nfc_tag_enabled
)
8298 wpas_p2p_remove_pending_group_interface(wpa_s
);
8299 wpa_s
->p2p_nfc_tag_enabled
= 0;
8303 if (wpa_s
->global
->p2p_disabled
)
8306 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
||
8307 wpa_s
->conf
->wps_nfc_dh_privkey
== NULL
||
8308 wpa_s
->conf
->wps_nfc_dev_pw
== NULL
||
8309 wpa_s
->conf
->wps_nfc_dev_pw_id
< 0x10) {
8310 wpa_printf(MSG_DEBUG
, "P2P: NFC password token not configured "
8311 "to allow static handover cases");
8315 wpa_printf(MSG_DEBUG
, "P2P: Enable use of own NFC Tag");
8317 wpa_s
->p2p_oob_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8318 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
8319 wpa_s
->p2p_oob_dev_pw
= wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8320 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
8322 wpa_s
->p2p_peer_oob_pk_hash_known
= 0;
8324 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
||
8325 wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
) {
8327 * P2P Group Interface present and the command came on group
8328 * interface, so enable the token for the current interface.
8330 wpa_s
->create_p2p_iface
= 0;
8332 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
8335 if (wpa_s
->create_p2p_iface
) {
8336 enum wpa_driver_if_type iftype
;
8337 /* Prepare to add a new interface for the group */
8338 iftype
= WPA_IF_P2P_GROUP
;
8339 if (go_intent
== 15)
8340 iftype
= WPA_IF_P2P_GO
;
8341 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
8342 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
8343 "interface for the group");
8347 if_addr
= wpa_s
->pending_interface_addr
;
8349 if_addr
= wpa_s
->own_addr
;
8351 wpa_s
->p2p_nfc_tag_enabled
= enabled
;
8353 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
8354 struct hostapd_data
*hapd
;
8355 if (iface
->ap_iface
== NULL
)
8357 hapd
= iface
->ap_iface
->bss
[0];
8358 wpabuf_free(hapd
->conf
->wps_nfc_dh_pubkey
);
8359 hapd
->conf
->wps_nfc_dh_pubkey
=
8360 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_pubkey
);
8361 wpabuf_free(hapd
->conf
->wps_nfc_dh_privkey
);
8362 hapd
->conf
->wps_nfc_dh_privkey
=
8363 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_privkey
);
8364 wpabuf_free(hapd
->conf
->wps_nfc_dev_pw
);
8365 hapd
->conf
->wps_nfc_dev_pw
=
8366 wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8367 hapd
->conf
->wps_nfc_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8369 if (hostapd_wps_nfc_token_enable(iface
->ap_iface
->bss
[0]) < 0) {
8370 wpa_dbg(iface
, MSG_DEBUG
,
8371 "P2P: Failed to enable NFC Tag for GO");
8374 p2p_set_authorized_oob_dev_pw_id(
8375 wpa_s
->global
->p2p
, wpa_s
->conf
->wps_nfc_dev_pw_id
, go_intent
,
8381 #endif /* CONFIG_WPS_NFC */
8384 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant
*wpa_s
,
8385 struct wpa_used_freq_data
*freqs
,
8388 u8 curr_chan
, cand
, chan
;
8392 * If possible, optimize the Listen channel to be a channel that is
8393 * already used by one of the other interfaces.
8395 if (!wpa_s
->conf
->p2p_optimize_listen_chan
)
8398 if (!wpa_s
->current_ssid
|| wpa_s
->wpa_state
!= WPA_COMPLETED
)
8401 curr_chan
= p2p_get_listen_channel(wpa_s
->global
->p2p
);
8402 for (i
= 0, cand
= 0; i
< num
; i
++) {
8403 ieee80211_freq_to_chan(freqs
[i
].freq
, &chan
);
8404 if (curr_chan
== chan
) {
8409 if (chan
== 1 || chan
== 6 || chan
== 11)
8414 wpa_dbg(wpa_s
, MSG_DEBUG
,
8415 "P2P: Update Listen channel to %u based on operating channel",
8417 p2p_set_listen_channel(wpa_s
->global
->p2p
, 81, cand
, 0);
8422 static int wpas_p2p_move_go_csa(struct wpa_supplicant
*wpa_s
)
8424 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_AP_CSA
)) {
8425 wpa_dbg(wpa_s
, MSG_DEBUG
, "CSA is not enabled");
8429 /* TODO: Add CSA support */
8430 wpa_dbg(wpa_s
, MSG_DEBUG
, "Moving GO with CSA is not implemented");
8435 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant
*wpa_s
)
8437 struct p2p_go_neg_results params
;
8438 struct wpa_ssid
*current_ssid
= wpa_s
->current_ssid
;
8440 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_REMOVE_AND_REFORM_GROUP
);
8442 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Move GO from freq=%d MHz",
8443 current_ssid
->frequency
);
8445 /* Stop the AP functionality */
8446 /* TODO: Should do this in a way that does not indicated to possible
8447 * P2P Clients in the group that the group is terminated. */
8448 wpa_supplicant_ap_deinit(wpa_s
);
8450 /* Reselect the GO frequency */
8451 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, 0, 0, 0, NULL
)) {
8452 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Failed to reselect freq");
8453 wpas_p2p_group_delete(wpa_s
,
8454 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
);
8457 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New freq selected for the GO (%u MHz)",
8461 !p2p_supported_freq_go(wpa_s
->global
->p2p
, params
.freq
)) {
8462 wpa_printf(MSG_DEBUG
,
8463 "P2P: Selected freq (%u MHz) is not valid for P2P",
8465 wpas_p2p_group_delete(wpa_s
,
8466 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
);
8470 /* Update the frequency */
8471 current_ssid
->frequency
= params
.freq
;
8472 wpa_s
->connect_without_scan
= current_ssid
;
8473 wpa_s
->reassociate
= 1;
8474 wpa_s
->disconnected
= 0;
8475 wpa_supplicant_req_scan(wpa_s
, 0, 0);
8479 static void wpas_p2p_move_go(void *eloop_ctx
, void *timeout_ctx
)
8481 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8483 if (!wpa_s
->ap_iface
|| !wpa_s
->current_ssid
)
8486 wpas_p2p_go_update_common_freqs(wpa_s
);
8489 * First, try a channel switch flow. If it is not supported or fails,
8490 * take down the GO and bring it up again.
8492 if (wpas_p2p_move_go_csa(wpa_s
) < 0)
8493 wpas_p2p_move_go_no_csa(wpa_s
);
8497 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx
, void *timeout_ctx
)
8499 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8500 struct wpa_used_freq_data
*freqs
= NULL
;
8501 unsigned int num
= wpa_s
->num_multichan_concurrent
;
8503 freqs
= os_calloc(num
, sizeof(struct wpa_used_freq_data
));
8507 num
= get_shared_radio_freqs_data(wpa_s
, freqs
, num
);
8509 /* Previous attempt to move a GO was not possible -- try again. */
8510 wpas_p2p_consider_moving_gos(wpa_s
, freqs
, num
,
8511 WPAS_P2P_CHANNEL_UPDATE_ANY
);
8518 * Consider moving a GO from its currently used frequency:
8519 * 1. It is possible that due to regulatory consideration the frequency
8520 * can no longer be used and there is a need to evacuate the GO.
8521 * 2. It is possible that due to MCC considerations, it would be preferable
8522 * to move the GO to a channel that is currently used by some other
8523 * station interface.
8525 * In case a frequency that became invalid is once again valid, cancel a
8526 * previously initiated GO frequency change.
8528 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant
*wpa_s
,
8529 struct wpa_used_freq_data
*freqs
,
8532 unsigned int i
, invalid_freq
= 0, policy_move
= 0, flags
= 0;
8533 unsigned int timeout
;
8536 wpas_p2p_go_update_common_freqs(wpa_s
);
8538 freq
= wpa_s
->current_ssid
->frequency
;
8539 for (i
= 0, invalid_freq
= 0; i
< num
; i
++) {
8540 if (freqs
[i
].freq
== freq
) {
8541 flags
= freqs
[i
].flags
;
8543 /* The channel is invalid, must change it */
8544 if (!p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
8545 wpa_dbg(wpa_s
, MSG_DEBUG
,
8546 "P2P: Freq=%d MHz no longer valid for GO",
8550 } else if (freqs
[i
].flags
== 0) {
8551 /* Freq is not used by any other station interface */
8553 } else if (!p2p_supported_freq(wpa_s
->global
->p2p
,
8555 /* Freq is not valid for P2P use cases */
8557 } else if (wpa_s
->conf
->p2p_go_freq_change_policy
==
8558 P2P_GO_FREQ_MOVE_SCM
) {
8560 } else if (wpa_s
->conf
->p2p_go_freq_change_policy
==
8561 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS
&&
8562 wpas_p2p_go_is_peer_freq(wpa_s
, freqs
[i
].freq
)) {
8567 wpa_dbg(wpa_s
, MSG_DEBUG
,
8568 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8569 invalid_freq
, policy_move
, flags
);
8572 * The channel is valid, or we are going to have a policy move, so
8575 if (!invalid_freq
|| policy_move
) {
8576 wpa_dbg(wpa_s
, MSG_DEBUG
,
8577 "P2P: Cancel a GO move from freq=%d MHz", freq
);
8578 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
8580 if (wpas_p2p_in_progress(wpa_s
)) {
8581 wpa_dbg(wpa_s
, MSG_DEBUG
,
8582 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8583 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
,
8585 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY
, 0,
8586 wpas_p2p_reconsider_moving_go
,
8592 if (!invalid_freq
&& (!policy_move
|| flags
!= 0)) {
8593 wpa_dbg(wpa_s
, MSG_DEBUG
,
8594 "P2P: Not initiating a GO frequency change");
8598 if (invalid_freq
&& !wpas_p2p_disallowed_freq(wpa_s
->global
, freq
))
8599 timeout
= P2P_GO_FREQ_CHANGE_TIME
;
8603 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Move GO from freq=%d MHz in %d secs",
8605 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
8606 eloop_register_timeout(timeout
, 0, wpas_p2p_move_go
, wpa_s
, NULL
);
8610 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant
*wpa_s
,
8611 struct wpa_used_freq_data
*freqs
,
8613 enum wpas_p2p_channel_update_trig trig
)
8615 struct wpa_supplicant
*ifs
;
8617 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
, ELOOP_ALL_CTX
,
8621 * Travers all the radio interfaces, and for each GO interface, check
8622 * if there is a need to move the GO from the frequency it is using,
8623 * or in case the frequency is valid again, cancel the evacuation flow.
8625 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
8627 if (ifs
->current_ssid
== NULL
||
8628 ifs
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
)
8632 * The GO was just started or completed channel switch, no need
8636 (trig
== WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE
||
8637 trig
== WPAS_P2P_CHANNEL_UPDATE_CS
)) {
8638 wpa_dbg(wpa_s
, MSG_DEBUG
,
8639 "P2P: GO move - schedule re-consideration");
8640 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY
, 0,
8641 wpas_p2p_reconsider_moving_go
,
8646 wpas_p2p_consider_moving_one_go(ifs
, freqs
, num
);
8651 void wpas_p2p_indicate_state_change(struct wpa_supplicant
*wpa_s
)
8653 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8656 wpas_p2p_update_channel_list(wpa_s
,
8657 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE
);
8661 void wpas_p2p_deinit_iface(struct wpa_supplicant
*wpa_s
)
8663 if (wpa_s
== wpa_s
->global
->p2p_init_wpa_s
&& wpa_s
->global
->p2p
) {
8664 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disable P2P since removing "
8665 "the management interface is being removed");
8666 wpas_p2p_deinit_global(wpa_s
->global
);
8671 void wpas_p2p_ap_deinit(struct wpa_supplicant
*wpa_s
)
8673 if (wpa_s
->ap_iface
->bss
)
8674 wpa_s
->ap_iface
->bss
[0]->p2p_group
= NULL
;
8675 wpas_p2p_group_deinit(wpa_s
);