3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "rsn_supp/wpa.h"
28 #include "wpa_supplicant_i.h"
31 #include "config_ssid.h"
36 #include "offchannel.h"
37 #include "wps_supplicant.h"
38 #include "p2p_supplicant.h"
39 #include "wifi_display.h"
43 * How many times to try to scan to find the GO before giving up on join
46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
51 * Defines time interval in seconds when a GO needs to evacuate a frequency that
52 * it is currently using, but is no longer valid for P2P use cases.
54 #define P2P_GO_FREQ_CHANGE_TIME 5
57 * Defines CSA parameters which are used when GO evacuates the no longer valid
58 * channel (and if the driver supports channel switch).
60 #define P2P_GO_CSA_COUNT 7
61 #define P2P_GO_CSA_BLOCK_TX 0
63 #ifndef P2P_MAX_CLIENT_IDLE
65 * How many seconds to try to reconnect to the GO when connection in P2P client
68 #define P2P_MAX_CLIENT_IDLE 10
69 #endif /* P2P_MAX_CLIENT_IDLE */
71 #ifndef P2P_MAX_INITIAL_CONN_WAIT
73 * How many seconds to wait for initial 4-way handshake to get completed after
74 * WPS provisioning step or after the re-invocation of a persistent group on a
77 #define P2P_MAX_INITIAL_CONN_WAIT 10
78 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
80 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
82 * How many seconds to wait for initial 4-way handshake to get completed after
83 * WPS provisioning step on the GO. This controls the extra time the P2P
84 * operation is considered to be in progress (e.g., to delay other scans) after
85 * WPS provisioning has been completed on the GO during group formation.
87 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
88 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
90 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
92 * How many seconds to wait for initial 4-way handshake to get completed after
93 * re-invocation of a persistent group on the GO when the client is expected
94 * to connect automatically (no user interaction).
96 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
97 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
99 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
102 * How many seconds to wait to re-attempt to move GOs, in case previous attempt
105 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
107 enum p2p_group_removal_reason
{
108 P2P_GROUP_REMOVAL_UNKNOWN
,
109 P2P_GROUP_REMOVAL_SILENT
,
110 P2P_GROUP_REMOVAL_FORMATION_FAILED
,
111 P2P_GROUP_REMOVAL_REQUESTED
,
112 P2P_GROUP_REMOVAL_IDLE_TIMEOUT
,
113 P2P_GROUP_REMOVAL_UNAVAILABLE
,
114 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
,
115 P2P_GROUP_REMOVAL_PSK_FAILURE
,
116 P2P_GROUP_REMOVAL_FREQ_CONFLICT
,
117 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
121 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
122 static struct wpa_supplicant
*
123 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
125 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
126 const u8
*ssid
, size_t ssid_len
);
127 static int wpas_p2p_setup_freqs(struct wpa_supplicant
*wpa_s
, int freq
,
128 int *force_freq
, int *pref_freq
, int go
,
129 unsigned int *pref_freq_list
,
130 unsigned int *num_pref_freq
);
131 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
132 const u8
*ssid
, size_t ssid_len
);
133 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
);
134 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
135 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
136 int auto_join
, int freq
,
137 const u8
*ssid
, size_t ssid_len
);
138 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
);
139 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
);
140 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
);
141 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
);
142 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
144 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
);
145 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
147 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
);
148 static void wpas_stop_listen(void *ctx
);
149 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
);
150 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
);
151 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
152 enum wpa_driver_if_type type
);
153 static void wpas_p2p_group_formation_failed(struct wpa_supplicant
*wpa_s
,
154 int already_deleted
);
155 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant
*wpa_s
,
156 struct wpa_used_freq_data
*freqs
,
158 static void wpas_p2p_move_go(void *eloop_ctx
, void *timeout_ctx
);
159 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant
*wpa_s
, int freq
);
161 wpas_p2p_consider_moving_gos(struct wpa_supplicant
*wpa_s
,
162 struct wpa_used_freq_data
*freqs
, unsigned int num
,
163 enum wpas_p2p_channel_update_trig trig
);
164 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx
, void *timeout_ctx
);
168 * Get the number of concurrent channels that the HW can operate, but that are
169 * currently not in use by any of the wpa_supplicant interfaces.
171 static int wpas_p2p_num_unused_channels(struct wpa_supplicant
*wpa_s
)
176 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
, sizeof(int));
180 num
= get_shared_radio_freqs(wpa_s
, freqs
,
181 wpa_s
->num_multichan_concurrent
);
184 unused
= wpa_s
->num_multichan_concurrent
- num
;
185 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: num_unused_channels: %d", unused
);
191 * Get the frequencies that are currently in use by one or more of the virtual
192 * interfaces, and that are also valid for P2P operation.
195 wpas_p2p_valid_oper_freqs(struct wpa_supplicant
*wpa_s
,
196 struct wpa_used_freq_data
*p2p_freqs
,
199 struct wpa_used_freq_data
*freqs
;
200 unsigned int num
, i
, j
;
202 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
203 sizeof(struct wpa_used_freq_data
));
207 num
= get_shared_radio_freqs_data(wpa_s
, freqs
,
208 wpa_s
->num_multichan_concurrent
);
210 os_memset(p2p_freqs
, 0, sizeof(struct wpa_used_freq_data
) * len
);
212 for (i
= 0, j
= 0; i
< num
&& j
< len
; i
++) {
213 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
214 p2p_freqs
[j
++] = freqs
[i
];
219 dump_freq_data(wpa_s
, "valid for P2P", p2p_freqs
, j
);
225 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant
*wpa_s
,
228 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
231 /* Use the wpa_s used to control the P2P Device operation */
232 wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
234 if (wpa_s
->conf
->p2p_ignore_shared_freq
&&
235 freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
236 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
237 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
241 p2p_set_own_freq_preference(wpa_s
->global
->p2p
, freq
);
245 static void wpas_p2p_scan_res_handler(struct wpa_supplicant
*wpa_s
,
246 struct wpa_scan_results
*scan_res
)
250 if (wpa_s
->p2p_scan_work
) {
251 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
252 wpa_s
->p2p_scan_work
= NULL
;
253 radio_work_done(work
);
256 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
259 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS)",
260 (int) scan_res
->num
);
262 for (i
= 0; i
< scan_res
->num
; i
++) {
263 struct wpa_scan_res
*bss
= scan_res
->res
[i
];
264 struct os_reltime time_tmp_age
, entry_ts
;
268 time_tmp_age
.sec
= bss
->age
/ 1000;
269 time_tmp_age
.usec
= (bss
->age
% 1000) * 1000;
270 os_reltime_sub(&scan_res
->fetch_time
, &time_tmp_age
, &entry_ts
);
272 ies
= (const u8
*) (bss
+ 1);
273 ies_len
= bss
->ie_len
;
274 if (bss
->beacon_ie_len
> 0 &&
275 !wpa_scan_get_vendor_ie(bss
, P2P_IE_VENDOR_TYPE
) &&
276 wpa_scan_get_vendor_ie_beacon(bss
, P2P_IE_VENDOR_TYPE
)) {
277 wpa_printf(MSG_DEBUG
, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
278 MACSTR
, MAC2STR(bss
->bssid
));
280 ies_len
= bss
->beacon_ie_len
;
284 if (p2p_scan_res_handler(wpa_s
->global
->p2p
, bss
->bssid
,
285 bss
->freq
, &entry_ts
, bss
->level
,
290 p2p_scan_res_handled(wpa_s
->global
->p2p
);
294 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work
*work
, int deinit
)
296 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
297 struct wpa_driver_scan_params
*params
= work
->ctx
;
301 if (!work
->started
) {
302 wpa_scan_free_params(params
);
306 wpa_s
->p2p_scan_work
= NULL
;
310 ret
= wpa_drv_scan(wpa_s
, params
);
311 wpa_scan_free_params(params
);
314 radio_work_done(work
);
315 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
319 p2p_notify_scan_trigger_status(wpa_s
->global
->p2p
, ret
);
320 os_get_reltime(&wpa_s
->scan_trigger_time
);
321 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_handler
;
322 wpa_s
->own_scan_requested
= 1;
323 wpa_s
->p2p_scan_work
= work
;
327 static int wpas_p2p_search_social_channel(struct wpa_supplicant
*wpa_s
,
330 if (wpa_s
->global
->p2p_24ghz_social_channels
&&
331 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
333 * Search all social channels regardless of whether these have
334 * been disabled for P2P operating channel use to avoid missing
339 return p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
343 static int wpas_p2p_scan(void *ctx
, enum p2p_scan_type type
, int freq
,
344 unsigned int num_req_dev_types
,
345 const u8
*req_dev_types
, const u8
*dev_id
, u16 pw_id
)
347 struct wpa_supplicant
*wpa_s
= ctx
;
348 struct wpa_driver_scan_params
*params
= NULL
;
349 struct wpabuf
*wps_ie
, *ies
;
350 unsigned int num_channels
= 0;
351 int social_channels_freq
[] = { 2412, 2437, 2462, 60480 };
355 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
358 if (wpa_s
->p2p_scan_work
) {
359 wpa_dbg(wpa_s
, MSG_INFO
, "P2P: Reject scan trigger since one is already pending");
363 params
= os_zalloc(sizeof(*params
));
367 /* P2P Wildcard SSID */
368 params
->num_ssids
= 1;
369 n
= os_malloc(P2P_WILDCARD_SSID_LEN
);
372 os_memcpy(n
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
373 params
->ssids
[0].ssid
= n
;
374 params
->ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
376 wpa_s
->wps
->dev
.p2p
= 1;
377 wps_ie
= wps_build_probe_req_ie(pw_id
, &wpa_s
->wps
->dev
,
378 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
,
379 num_req_dev_types
, req_dev_types
);
383 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
384 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
389 wpabuf_put_buf(ies
, wps_ie
);
392 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, dev_id
);
394 params
->p2p_probe
= 1;
395 n
= os_malloc(wpabuf_len(ies
));
400 os_memcpy(n
, wpabuf_head(ies
), wpabuf_len(ies
));
401 params
->extra_ies
= n
;
402 params
->extra_ies_len
= wpabuf_len(ies
);
406 case P2P_SCAN_SOCIAL
:
407 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 1,
409 if (params
->freqs
== NULL
)
411 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
412 if (wpas_p2p_search_social_channel(
413 wpa_s
, social_channels_freq
[i
]))
414 params
->freqs
[num_channels
++] =
415 social_channels_freq
[i
];
417 params
->freqs
[num_channels
++] = 0;
421 case P2P_SCAN_SPECIFIC
:
422 params
->freqs
= os_calloc(2, sizeof(int));
423 if (params
->freqs
== NULL
)
425 params
->freqs
[0] = freq
;
426 params
->freqs
[1] = 0;
428 case P2P_SCAN_SOCIAL_PLUS_ONE
:
429 params
->freqs
= os_calloc(ARRAY_SIZE(social_channels_freq
) + 2,
431 if (params
->freqs
== NULL
)
433 for (i
= 0; i
< ARRAY_SIZE(social_channels_freq
); i
++) {
434 if (wpas_p2p_search_social_channel(
435 wpa_s
, social_channels_freq
[i
]))
436 params
->freqs
[num_channels
++] =
437 social_channels_freq
[i
];
439 if (p2p_supported_freq(wpa_s
->global
->p2p
, freq
))
440 params
->freqs
[num_channels
++] = freq
;
441 params
->freqs
[num_channels
++] = 0;
445 radio_remove_works(wpa_s
, "p2p-scan", 0);
446 if (radio_add_work(wpa_s
, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb
,
452 wpa_scan_free_params(params
);
457 static enum wpa_driver_if_type
wpas_p2p_if_type(int p2p_group_interface
)
459 switch (p2p_group_interface
) {
460 case P2P_GROUP_INTERFACE_PENDING
:
461 return WPA_IF_P2P_GROUP
;
462 case P2P_GROUP_INTERFACE_GO
:
463 return WPA_IF_P2P_GO
;
464 case P2P_GROUP_INTERFACE_CLIENT
:
465 return WPA_IF_P2P_CLIENT
;
468 return WPA_IF_P2P_GROUP
;
472 static struct wpa_supplicant
* wpas_get_p2p_group(struct wpa_supplicant
*wpa_s
,
474 size_t ssid_len
, int *go
)
478 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
479 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
480 if (s
->disabled
!= 0 || !s
->p2p_group
||
481 s
->ssid_len
!= ssid_len
||
482 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
484 if (s
->mode
== WPAS_MODE_P2P_GO
&&
485 s
!= wpa_s
->current_ssid
)
488 *go
= s
->mode
== WPAS_MODE_P2P_GO
;
497 static void run_wpas_p2p_disconnect(void *eloop_ctx
, void *timeout_ctx
)
499 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
500 wpa_printf(MSG_DEBUG
,
501 "P2P: Complete previously requested removal of %s",
503 wpas_p2p_disconnect(wpa_s
);
507 static int wpas_p2p_disconnect_safely(struct wpa_supplicant
*wpa_s
,
508 struct wpa_supplicant
*calling_wpa_s
)
510 if (calling_wpa_s
== wpa_s
&& wpa_s
&&
511 wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
513 * The calling wpa_s instance is going to be removed. Do that
514 * from an eloop callback to keep the instance available until
515 * the caller has returned. This my be needed, e.g., to provide
516 * control interface responses on the per-interface socket.
518 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect
,
524 return wpas_p2p_disconnect(wpa_s
);
528 /* Determine total number of clients in active groups where we are the GO */
529 static unsigned int p2p_group_go_member_count(struct wpa_supplicant
*wpa_s
)
531 unsigned int count
= 0;
534 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
535 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
536 wpa_printf(MSG_DEBUG
,
537 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
538 wpa_s
, s
, s
->disabled
, s
->p2p_group
,
540 if (!s
->disabled
&& s
->p2p_group
&&
541 s
->mode
== WPAS_MODE_P2P_GO
) {
542 count
+= p2p_get_group_num_members(
552 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant
*wpa_s
)
554 return !wpa_s
->p2p_mgmt
&& wpa_s
->current_ssid
&&
555 !wpa_s
->current_ssid
->disabled
&&
556 wpa_s
->current_ssid
->p2p_group
&&
557 wpa_s
->current_ssid
->p2p_persistent_group
;
561 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant
*wpa_s
)
563 return p2p_is_active_persistent_group(wpa_s
) &&
564 wpa_s
->current_ssid
->mode
== WPAS_MODE_P2P_GO
;
568 /* Find an interface for a P2P group where we are the GO */
569 static struct wpa_supplicant
*
570 wpas_p2p_get_go_group(struct wpa_supplicant
*wpa_s
)
572 struct wpa_supplicant
*save
= NULL
;
577 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
578 if (!p2p_is_active_persistent_go(wpa_s
))
581 /* Prefer a group with connected clients */
582 if (p2p_get_group_num_members(wpa_s
->p2p_group
))
587 /* No group with connected clients, so pick the one without (if any) */
592 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant
*wpa_s
)
594 return p2p_is_active_persistent_group(wpa_s
) &&
595 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
;
599 /* Find an interface for a P2P group where we are the P2P Client */
600 static struct wpa_supplicant
*
601 wpas_p2p_get_cli_group(struct wpa_supplicant
*wpa_s
)
603 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
604 if (p2p_is_active_persistent_cli(wpa_s
))
612 /* Find a persistent group where we are the GO */
613 static struct wpa_ssid
*
614 wpas_p2p_get_persistent_go(struct wpa_supplicant
*wpa_s
)
618 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
619 if (s
->disabled
== 2 && s
->mode
== WPAS_MODE_P2P_GO
)
627 static u8
p2ps_group_capability(void *ctx
, u8 incoming
, u8 role
,
628 unsigned int *force_freq
,
629 unsigned int *pref_freq
)
631 struct wpa_supplicant
*wpa_s
= ctx
;
633 u8 conncap
= P2PS_SETUP_NONE
;
634 unsigned int owned_members
= 0;
635 struct wpa_supplicant
*go_wpa_s
, *cli_wpa_s
;
636 struct wpa_ssid
*persistent_go
;
637 int p2p_no_group_iface
;
638 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
640 wpa_printf(MSG_DEBUG
, "P2P: Conncap - in:%d role:%d", incoming
, role
);
647 size
= P2P_MAX_PREF_CHANNELS
;
648 if (force_freq
&& pref_freq
&&
649 !wpas_p2p_setup_freqs(wpa_s
, 0, (int *) force_freq
,
650 (int *) pref_freq
, 0, pref_freq_list
, &size
))
651 wpas_p2p_set_own_freq_preference(wpa_s
,
652 *force_freq
? *force_freq
:
656 * For non-concurrent capable devices:
657 * If persistent_go, then no new.
658 * If GO, then no client.
659 * If client, then no GO.
661 go_wpa_s
= wpas_p2p_get_go_group(wpa_s
);
663 owned_members
= p2p_get_group_num_members(go_wpa_s
->p2p_group
);
664 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
665 p2p_no_group_iface
= !wpas_p2p_create_iface(wpa_s
);
666 cli_wpa_s
= wpas_p2p_get_cli_group(wpa_s
);
668 wpa_printf(MSG_DEBUG
,
669 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
670 go_wpa_s
, owned_members
, cli_wpa_s
, persistent_go
);
672 /* If not concurrent, restrict our choices */
673 if (p2p_no_group_iface
) {
674 wpa_printf(MSG_DEBUG
, "P2P: p2p_no_group_iface");
677 return P2PS_SETUP_NONE
;
680 if (role
== P2PS_SETUP_CLIENT
||
681 incoming
== P2PS_SETUP_GROUP_OWNER
||
682 p2p_client_limit_reached(go_wpa_s
->p2p_group
))
683 return P2PS_SETUP_NONE
;
685 return P2PS_SETUP_GROUP_OWNER
;
689 if (role
== P2PS_SETUP_NONE
|| role
== P2PS_SETUP_NEW
) {
691 return P2PS_SETUP_GROUP_OWNER
|
693 if (incoming
== P2PS_SETUP_NEW
) {
696 if (os_get_random(&r
, sizeof(r
)) < 0 ||
698 return P2PS_SETUP_CLIENT
;
699 return P2PS_SETUP_GROUP_OWNER
;
705 /* If a required role has been specified, handle it here */
706 if (role
&& role
!= P2PS_SETUP_NEW
) {
708 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_NEW
:
709 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
:
711 * Peer has an active GO, so if the role allows it and
712 * we do not have any active roles, become client.
714 if ((role
& P2PS_SETUP_CLIENT
) && !go_wpa_s
&&
716 return P2PS_SETUP_CLIENT
;
720 case P2PS_SETUP_NONE
:
725 case P2PS_SETUP_GROUP_OWNER
:
727 * Must be a complimentary role - cannot be a client to
728 * more than one peer.
730 if (incoming
== role
|| cli_wpa_s
)
731 return P2PS_SETUP_NONE
;
733 return P2PS_SETUP_CLIENT
;
735 case P2PS_SETUP_CLIENT
:
736 /* Must be a complimentary role */
737 if (incoming
!= role
) {
738 conncap
= P2PS_SETUP_GROUP_OWNER
;
743 return P2PS_SETUP_NONE
;
748 * For now, we only will support ownership of one group, and being a
749 * client of one group. Therefore, if we have either an existing GO
750 * group, or an existing client group, we will not do a new GO
751 * negotiation, but rather try to re-use the existing groups.
754 case P2PS_SETUP_NONE
:
757 conncap
= P2PS_SETUP_GROUP_OWNER
;
758 else if (!owned_members
)
759 conncap
= P2PS_SETUP_NEW
;
760 else if (incoming
== P2PS_SETUP_NONE
)
761 conncap
= P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
;
763 conncap
= P2PS_SETUP_CLIENT
;
766 case P2PS_SETUP_CLIENT
:
767 conncap
= P2PS_SETUP_GROUP_OWNER
;
770 case P2PS_SETUP_GROUP_OWNER
:
772 conncap
= P2PS_SETUP_CLIENT
;
775 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_NEW
:
776 case P2PS_SETUP_GROUP_OWNER
| P2PS_SETUP_CLIENT
:
778 conncap
= P2PS_SETUP_GROUP_OWNER
;
782 if (os_get_random(&r
, sizeof(r
)) < 0 ||
784 conncap
= P2PS_SETUP_CLIENT
;
786 conncap
= P2PS_SETUP_GROUP_OWNER
;
791 return P2PS_SETUP_NONE
;
795 if ((conncap
& P2PS_SETUP_GROUP_OWNER
) ||
796 (!incoming
&& (conncap
& P2PS_SETUP_NEW
))) {
797 if (go_wpa_s
&& p2p_client_limit_reached(go_wpa_s
->p2p_group
))
798 conncap
&= ~P2PS_SETUP_GROUP_OWNER
;
800 s
= wpas_p2p_get_persistent_go(wpa_s
);
801 if (!s
&& !go_wpa_s
&& p2p_no_group_iface
) {
802 p2p_set_intended_addr(wpa_s
->global
->p2p
,
804 } else if (!s
&& !go_wpa_s
) {
805 if (wpas_p2p_add_group_interface(wpa_s
,
806 WPA_IF_P2P_GO
) < 0) {
807 wpa_printf(MSG_ERROR
,
808 "P2P: Failed to allocate a new interface for the group");
809 return P2PS_SETUP_NONE
;
811 wpa_s
->global
->pending_group_iface_for_p2ps
= 1;
812 p2p_set_intended_addr(wpa_s
->global
->p2p
,
813 wpa_s
->pending_interface_addr
);
821 static int wpas_p2p_group_delete(struct wpa_supplicant
*wpa_s
,
822 enum p2p_group_removal_reason removal_reason
)
824 struct wpa_ssid
*ssid
;
828 ssid
= wpa_s
->current_ssid
;
831 * The current SSID was not known, but there may still be a
832 * pending P2P group interface waiting for provisioning or a
833 * P2P group that is trying to reconnect.
835 ssid
= wpa_s
->conf
->ssid
;
837 if (ssid
->p2p_group
&& ssid
->disabled
!= 2)
842 wpa_s
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)
844 wpa_printf(MSG_ERROR
, "P2P: P2P group interface "
849 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
)
851 else if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
||
852 (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
)) {
853 wpa_s
->reassociate
= 0;
854 wpa_s
->disconnected
= 1;
859 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
&& ssid
)
860 wpas_notify_p2p_group_removed(wpa_s
, ssid
, gtype
);
862 if (os_strcmp(gtype
, "client") == 0) {
863 wpa_supplicant_deauthenticate(wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
864 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal
,
866 wpa_printf(MSG_DEBUG
,
867 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
868 removal_reason
= P2P_GROUP_REMOVAL_PSK_FAILURE
;
869 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
,
874 if (wpa_s
->cross_connect_in_use
) {
875 wpa_s
->cross_connect_in_use
= 0;
876 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
877 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
878 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
880 switch (removal_reason
) {
881 case P2P_GROUP_REMOVAL_REQUESTED
:
882 reason
= " reason=REQUESTED";
884 case P2P_GROUP_REMOVAL_FORMATION_FAILED
:
885 reason
= " reason=FORMATION_FAILED";
887 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT
:
888 reason
= " reason=IDLE";
890 case P2P_GROUP_REMOVAL_UNAVAILABLE
:
891 reason
= " reason=UNAVAILABLE";
893 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION
:
894 reason
= " reason=GO_ENDING_SESSION";
896 case P2P_GROUP_REMOVAL_PSK_FAILURE
:
897 reason
= " reason=PSK_FAILURE";
899 case P2P_GROUP_REMOVAL_FREQ_CONFLICT
:
900 reason
= " reason=FREQ_CONFLICT";
906 if (removal_reason
!= P2P_GROUP_REMOVAL_SILENT
) {
907 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
908 P2P_EVENT_GROUP_REMOVED
"%s %s%s",
909 wpa_s
->ifname
, gtype
, reason
);
912 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
) > 0)
913 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group freq_conflict timeout");
914 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
915 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
916 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
917 wpa_s
->parent
, NULL
) > 0) {
918 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group formation "
920 wpa_s
->p2p_in_provisioning
= 0;
921 wpas_p2p_group_formation_failed(wpa_s
, 1);
924 wpa_s
->p2p_in_invitation
= 0;
925 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
926 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
, wpa_s
, NULL
);
929 * Make sure wait for the first client does not remain active after the
930 * group has been removed.
932 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
934 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
) {
935 struct wpa_global
*global
;
937 enum wpa_driver_if_type type
;
938 wpa_printf(MSG_DEBUG
, "P2P: Remove group interface %s",
940 global
= wpa_s
->global
;
941 ifname
= os_strdup(wpa_s
->ifname
);
942 type
= wpas_p2p_if_type(wpa_s
->p2p_group_interface
);
943 eloop_cancel_timeout(run_wpas_p2p_disconnect
, wpa_s
, NULL
);
944 wpa_supplicant_remove_iface(wpa_s
->global
, wpa_s
, 0);
945 wpa_s
= global
->ifaces
;
947 wpa_drv_if_remove(wpa_s
, type
, ifname
);
952 if (!wpa_s
->p2p_go_group_formation_completed
) {
953 wpa_s
->global
->p2p_group_formation
= NULL
;
954 wpa_s
->p2p_in_provisioning
= 0;
957 wpa_s
->show_group_started
= 0;
958 os_free(wpa_s
->go_params
);
959 wpa_s
->go_params
= NULL
;
961 os_free(wpa_s
->p2p_group_common_freqs
);
962 wpa_s
->p2p_group_common_freqs
= NULL
;
963 wpa_s
->p2p_group_common_freqs_num
= 0;
965 wpa_s
->waiting_presence_resp
= 0;
967 wpa_printf(MSG_DEBUG
, "P2P: Remove temporary group network");
968 if (ssid
&& (ssid
->p2p_group
||
969 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
||
970 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
))) {
972 if (ssid
== wpa_s
->current_ssid
) {
973 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
974 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
975 wpa_s
->current_ssid
= NULL
;
978 * Networks objects created during any P2P activities are not
979 * exposed out as they might/will confuse certain non-P2P aware
980 * applications since these network objects won't behave like
983 * Likewise, we don't send out network removed signals for such
986 wpa_config_remove_network(wpa_s
->conf
, id
);
987 wpa_supplicant_clear_status(wpa_s
);
988 wpa_supplicant_cancel_sched_scan(wpa_s
);
990 wpa_printf(MSG_DEBUG
, "P2P: Temporary group network not "
994 wpa_supplicant_ap_deinit(wpa_s
);
996 wpa_drv_deinit_p2p_cli(wpa_s
);
998 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
1004 static int wpas_p2p_persistent_group(struct wpa_supplicant
*wpa_s
,
1006 const u8
*ssid
, size_t ssid_len
)
1008 struct wpa_bss
*bss
;
1014 if (wpa_s
->go_params
)
1015 bssid
= wpa_s
->go_params
->peer_interface_addr
;
1017 bssid
= wpa_s
->bssid
;
1019 bss
= wpa_bss_get(wpa_s
, bssid
, ssid
, ssid_len
);
1020 if (bss
== NULL
&& wpa_s
->go_params
&&
1021 !is_zero_ether_addr(wpa_s
->go_params
->peer_device_addr
))
1022 bss
= wpa_bss_get_p2p_dev_addr(
1023 wpa_s
, wpa_s
->go_params
->peer_device_addr
);
1025 u8 iface_addr
[ETH_ALEN
];
1026 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, bssid
,
1028 bss
= wpa_bss_get(wpa_s
, iface_addr
, ssid
, ssid_len
);
1031 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
1032 "group is persistent - BSS " MACSTR
" not found",
1037 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
1039 p2p
= wpa_bss_get_vendor_ie_multi_beacon(bss
,
1040 P2P_IE_VENDOR_TYPE
);
1042 wpa_printf(MSG_DEBUG
, "P2P: Could not figure out whether "
1043 "group is persistent - BSS " MACSTR
1044 " did not include P2P IE", MAC2STR(bssid
));
1045 wpa_hexdump(MSG_DEBUG
, "P2P: Probe Response IEs",
1046 (u8
*) (bss
+ 1), bss
->ie_len
);
1047 wpa_hexdump(MSG_DEBUG
, "P2P: Beacon IEs",
1048 ((u8
*) bss
+ 1) + bss
->ie_len
,
1049 bss
->beacon_ie_len
);
1053 group_capab
= p2p_get_group_capab(p2p
);
1054 addr
= p2p_get_go_dev_addr(p2p
);
1055 wpa_printf(MSG_DEBUG
, "P2P: Checking whether group is persistent: "
1056 "group_capab=0x%x", group_capab
);
1058 os_memcpy(go_dev_addr
, addr
, ETH_ALEN
);
1059 wpa_printf(MSG_DEBUG
, "P2P: GO Device Address " MACSTR
,
1062 os_memset(go_dev_addr
, 0, ETH_ALEN
);
1065 wpa_printf(MSG_DEBUG
, "P2P: BSS " MACSTR
" group_capab=0x%x "
1066 "go_dev_addr=" MACSTR
,
1067 MAC2STR(bssid
), group_capab
, MAC2STR(go_dev_addr
));
1069 return group_capab
& P2P_GROUP_CAPAB_PERSISTENT_GROUP
;
1073 static int wpas_p2p_store_persistent_group(struct wpa_supplicant
*wpa_s
,
1074 struct wpa_ssid
*ssid
,
1075 const u8
*go_dev_addr
)
1080 wpa_printf(MSG_DEBUG
, "P2P: Storing credentials for a persistent "
1081 "group (GO Dev Addr " MACSTR
")", MAC2STR(go_dev_addr
));
1082 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
1083 if (s
->disabled
== 2 &&
1084 os_memcmp(go_dev_addr
, s
->bssid
, ETH_ALEN
) == 0 &&
1085 s
->ssid_len
== ssid
->ssid_len
&&
1086 os_memcmp(ssid
->ssid
, s
->ssid
, ssid
->ssid_len
) == 0)
1091 wpa_printf(MSG_DEBUG
, "P2P: Update existing persistent group "
1093 if (ssid
->passphrase
&& !s
->passphrase
)
1095 else if (ssid
->passphrase
&& s
->passphrase
&&
1096 os_strcmp(ssid
->passphrase
, s
->passphrase
) != 0)
1099 wpa_printf(MSG_DEBUG
, "P2P: Create a new persistent group "
1102 s
= wpa_config_add_network(wpa_s
->conf
);
1107 * Instead of network_added we emit persistent_group_added
1108 * notification. Also to keep the defense checks in
1109 * persistent_group obj registration method, we set the
1110 * relevant flags in s to designate it as a persistent group.
1113 s
->p2p_persistent_group
= 1;
1114 wpas_notify_persistent_group_added(wpa_s
, s
);
1115 wpa_config_set_network_defaults(s
);
1119 s
->p2p_persistent_group
= 1;
1122 os_memcpy(s
->bssid
, go_dev_addr
, ETH_ALEN
);
1123 s
->mode
= ssid
->mode
;
1124 s
->auth_alg
= WPA_AUTH_ALG_OPEN
;
1125 s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1126 s
->proto
= WPA_PROTO_RSN
;
1127 s
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1129 if (ssid
->passphrase
) {
1130 os_free(s
->passphrase
);
1131 s
->passphrase
= os_strdup(ssid
->passphrase
);
1133 if (ssid
->psk_set
) {
1135 os_memcpy(s
->psk
, ssid
->psk
, 32);
1137 if (s
->passphrase
&& !s
->psk_set
)
1138 wpa_config_update_psk(s
);
1139 if (s
->ssid
== NULL
|| s
->ssid_len
< ssid
->ssid_len
) {
1141 s
->ssid
= os_malloc(ssid
->ssid_len
);
1144 s
->ssid_len
= ssid
->ssid_len
;
1145 os_memcpy(s
->ssid
, ssid
->ssid
, s
->ssid_len
);
1147 if (ssid
->mode
== WPAS_MODE_P2P_GO
&& wpa_s
->global
->add_psk
) {
1148 dl_list_add(&s
->psk_list
, &wpa_s
->global
->add_psk
->list
);
1149 wpa_s
->global
->add_psk
= NULL
;
1153 if (changed
&& wpa_s
->conf
->update_config
&&
1154 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
)) {
1155 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1162 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant
*wpa_s
,
1165 struct wpa_ssid
*ssid
, *s
;
1169 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
1171 ssid
= wpa_s
->current_ssid
;
1172 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
1173 !ssid
->p2p_persistent_group
)
1176 for (s
= p2p_wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
1177 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
1180 if (s
->ssid_len
== ssid
->ssid_len
&&
1181 os_memcmp(s
->ssid
, ssid
->ssid
, s
->ssid_len
) == 0)
1188 for (i
= 0; s
->p2p_client_list
&& i
< s
->num_p2p_clients
; i
++) {
1189 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
, addr
,
1193 if (i
== s
->num_p2p_clients
- 1)
1194 return; /* already the most recent entry */
1196 /* move the entry to mark it most recent */
1197 os_memmove(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
1198 s
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
1199 (s
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
1200 os_memcpy(s
->p2p_client_list
+
1201 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
, addr
,
1203 os_memset(s
->p2p_client_list
+
1204 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
+ ETH_ALEN
,
1210 if (!found
&& s
->num_p2p_clients
< P2P_MAX_STORED_CLIENTS
) {
1211 n
= os_realloc_array(s
->p2p_client_list
,
1212 s
->num_p2p_clients
+ 1, 2 * ETH_ALEN
);
1215 os_memcpy(n
+ s
->num_p2p_clients
* 2 * ETH_ALEN
, addr
,
1217 os_memset(n
+ s
->num_p2p_clients
* 2 * ETH_ALEN
+ ETH_ALEN
,
1219 s
->p2p_client_list
= n
;
1220 s
->num_p2p_clients
++;
1221 } else if (!found
&& s
->p2p_client_list
) {
1222 /* Not enough room for an additional entry - drop the oldest
1224 os_memmove(s
->p2p_client_list
,
1225 s
->p2p_client_list
+ 2 * ETH_ALEN
,
1226 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
);
1227 os_memcpy(s
->p2p_client_list
+
1228 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
,
1230 os_memset(s
->p2p_client_list
+
1231 (s
->num_p2p_clients
- 1) * 2 * ETH_ALEN
+ ETH_ALEN
,
1235 if (p2p_wpa_s
->conf
->update_config
&&
1236 wpa_config_write(p2p_wpa_s
->confname
, p2p_wpa_s
->conf
))
1237 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1241 static void wpas_p2p_group_started(struct wpa_supplicant
*wpa_s
,
1242 int go
, struct wpa_ssid
*ssid
, int freq
,
1243 const u8
*psk
, const char *passphrase
,
1244 const u8
*go_dev_addr
, int persistent
,
1247 const char *ssid_txt
;
1251 wpa_snprintf_hex(psk_txt
, sizeof(psk_txt
), psk
, 32);
1256 ssid_txt
= wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
);
1260 if (passphrase
&& passphrase
[0] == '\0')
1264 * Include PSK/passphrase only in the control interface message and
1265 * leave it out from the debug log entry.
1267 wpa_msg_global_ctrl(wpa_s
->parent
, MSG_INFO
,
1268 P2P_EVENT_GROUP_STARTED
1269 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1271 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
1272 psk
? " psk=" : "", psk_txt
,
1273 passphrase
? " passphrase=\"" : "",
1274 passphrase
? passphrase
: "",
1275 passphrase
? "\"" : "",
1276 MAC2STR(go_dev_addr
),
1277 persistent
? " [PERSISTENT]" : "", extra
);
1278 wpa_printf(MSG_INFO
, P2P_EVENT_GROUP_STARTED
1279 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR
"%s%s",
1280 wpa_s
->ifname
, go
? "GO" : "client", ssid_txt
, freq
,
1281 MAC2STR(go_dev_addr
), persistent
? " [PERSISTENT]" : "",
1286 static void wpas_group_formation_completed(struct wpa_supplicant
*wpa_s
,
1287 int success
, int already_deleted
)
1289 struct wpa_ssid
*ssid
;
1292 u8 go_dev_addr
[ETH_ALEN
];
1293 int network_id
= -1;
1296 * This callback is likely called for the main interface. Update wpa_s
1297 * to use the group interface if a new interface was created for the
1300 if (wpa_s
->global
->p2p_group_formation
)
1301 wpa_s
= wpa_s
->global
->p2p_group_formation
;
1302 if (wpa_s
->p2p_go_group_formation_completed
) {
1303 wpa_s
->global
->p2p_group_formation
= NULL
;
1304 wpa_s
->p2p_in_provisioning
= 0;
1306 wpa_s
->p2p_in_invitation
= 0;
1307 wpa_s
->group_formation_reported
= 1;
1310 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1311 P2P_EVENT_GROUP_FORMATION_FAILURE
);
1312 wpas_notify_p2p_group_formation_failure(wpa_s
, "");
1313 if (already_deleted
)
1315 wpas_p2p_group_delete(wpa_s
,
1316 P2P_GROUP_REMOVAL_FORMATION_FAILED
);
1320 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1321 P2P_EVENT_GROUP_FORMATION_SUCCESS
);
1323 ssid
= wpa_s
->current_ssid
;
1324 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
1325 ssid
->mode
= WPAS_MODE_P2P_GO
;
1326 p2p_group_notif_formation_done(wpa_s
->p2p_group
);
1327 wpa_supplicant_ap_mac_addr_filter(wpa_s
, NULL
);
1332 client
= ssid
->mode
== WPAS_MODE_INFRA
;
1333 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
1334 persistent
= ssid
->p2p_persistent_group
;
1335 os_memcpy(go_dev_addr
, wpa_s
->global
->p2p_dev_addr
,
1338 persistent
= wpas_p2p_persistent_group(wpa_s
,
1343 client
= wpa_s
->p2p_group_interface
==
1344 P2P_GROUP_INTERFACE_CLIENT
;
1345 os_memset(go_dev_addr
, 0, ETH_ALEN
);
1348 wpa_s
->show_group_started
= 0;
1351 * Indicate event only after successfully completed 4-way
1352 * handshake, i.e., when the interface is ready for data
1355 wpa_s
->show_group_started
= 1;
1357 wpas_p2p_group_started(wpa_s
, 1, ssid
,
1358 ssid
? ssid
->frequency
: 0,
1359 ssid
&& ssid
->passphrase
== NULL
&&
1360 ssid
->psk_set
? ssid
->psk
: NULL
,
1361 ssid
? ssid
->passphrase
: NULL
,
1362 go_dev_addr
, persistent
, "");
1363 wpas_p2p_cross_connect_setup(wpa_s
);
1364 wpas_p2p_set_group_idle_timeout(wpa_s
);
1368 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
1371 os_free(wpa_s
->global
->add_psk
);
1372 wpa_s
->global
->add_psk
= NULL
;
1374 if (network_id
< 0 && ssid
)
1375 network_id
= ssid
->id
;
1377 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1378 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1383 struct send_action_work
{
1389 unsigned int wait_time
;
1394 static void wpas_p2p_free_send_action_work(struct wpa_supplicant
*wpa_s
)
1396 struct send_action_work
*awork
= wpa_s
->p2p_send_action_work
->ctx
;
1398 wpa_printf(MSG_DEBUG
,
1399 "P2P: Free Action frame radio work @%p (freq=%u dst="
1400 MACSTR
" src=" MACSTR
" bssid=" MACSTR
" wait_time=%u)",
1401 wpa_s
->p2p_send_action_work
, awork
->freq
,
1402 MAC2STR(awork
->dst
), MAC2STR(awork
->src
),
1403 MAC2STR(awork
->bssid
), awork
->wait_time
);
1404 wpa_hexdump(MSG_DEBUG
, "P2P: Freeing pending Action frame",
1405 awork
->buf
, awork
->len
);
1407 wpa_s
->p2p_send_action_work
->ctx
= NULL
;
1408 radio_work_done(wpa_s
->p2p_send_action_work
);
1409 wpa_s
->p2p_send_action_work
= NULL
;
1413 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx
,
1416 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
1418 if (!wpa_s
->p2p_send_action_work
)
1421 wpa_printf(MSG_DEBUG
, "P2P: Send Action frame radio work timed out");
1422 wpas_p2p_free_send_action_work(wpa_s
);
1426 static void wpas_p2p_action_tx_clear(struct wpa_supplicant
*wpa_s
)
1428 if (wpa_s
->p2p_send_action_work
) {
1429 struct send_action_work
*awork
;
1431 awork
= wpa_s
->p2p_send_action_work
->ctx
;
1432 wpa_printf(MSG_DEBUG
,
1433 "P2P: Clear Action TX work @%p (wait_time=%u)",
1434 wpa_s
->p2p_send_action_work
, awork
->wait_time
);
1435 if (awork
->wait_time
== 0) {
1436 wpas_p2p_free_send_action_work(wpa_s
);
1439 * In theory, this should not be needed, but number of
1440 * places in the P2P code is still using non-zero wait
1441 * time for the last Action frame in the sequence and
1442 * some of these do not call send_action_done().
1444 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1446 eloop_register_timeout(
1447 0, awork
->wait_time
* 1000,
1448 wpas_p2p_send_action_work_timeout
,
1455 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant
*wpa_s
,
1457 const u8
*dst
, const u8
*src
,
1459 const u8
*data
, size_t data_len
,
1460 enum offchannel_send_action_result
1463 enum p2p_send_action_result res
= P2P_SEND_ACTION_SUCCESS
;
1465 wpas_p2p_action_tx_clear(wpa_s
);
1467 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
)
1471 case OFFCHANNEL_SEND_ACTION_SUCCESS
:
1472 res
= P2P_SEND_ACTION_SUCCESS
;
1474 case OFFCHANNEL_SEND_ACTION_NO_ACK
:
1475 res
= P2P_SEND_ACTION_NO_ACK
;
1477 case OFFCHANNEL_SEND_ACTION_FAILED
:
1478 res
= P2P_SEND_ACTION_FAILED
;
1482 p2p_send_action_cb(wpa_s
->global
->p2p
, freq
, dst
, src
, bssid
, res
);
1484 if (result
!= OFFCHANNEL_SEND_ACTION_SUCCESS
&&
1485 wpa_s
->pending_pd_before_join
&&
1486 (os_memcmp(dst
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
1487 os_memcmp(dst
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0) &&
1488 wpa_s
->p2p_fallback_to_go_neg
) {
1489 wpa_s
->pending_pd_before_join
= 0;
1490 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No ACK for PD Req "
1491 "during p2p_connect-auto");
1492 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
1493 P2P_EVENT_FALLBACK_TO_GO_NEG
1494 "reason=no-ACK-to-PD-Req");
1495 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
1501 static void wpas_send_action_cb(struct wpa_radio_work
*work
, int deinit
)
1503 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
1504 struct send_action_work
*awork
= work
->ctx
;
1507 if (work
->started
) {
1508 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1510 wpa_s
->p2p_send_action_work
= NULL
;
1511 offchannel_send_action_done(wpa_s
);
1517 if (offchannel_send_action(wpa_s
, awork
->freq
, awork
->dst
, awork
->src
,
1518 awork
->bssid
, awork
->buf
, awork
->len
,
1520 wpas_p2p_send_action_tx_status
, 1) < 0) {
1522 radio_work_done(work
);
1525 wpa_s
->p2p_send_action_work
= work
;
1529 static int wpas_send_action_work(struct wpa_supplicant
*wpa_s
,
1530 unsigned int freq
, const u8
*dst
,
1531 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1532 size_t len
, unsigned int wait_time
)
1534 struct send_action_work
*awork
;
1536 if (wpa_s
->p2p_send_action_work
) {
1537 wpa_printf(MSG_DEBUG
, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1541 awork
= os_zalloc(sizeof(*awork
) + len
);
1546 os_memcpy(awork
->dst
, dst
, ETH_ALEN
);
1547 os_memcpy(awork
->src
, src
, ETH_ALEN
);
1548 os_memcpy(awork
->bssid
, bssid
, ETH_ALEN
);
1550 awork
->wait_time
= wait_time
;
1551 os_memcpy(awork
->buf
, buf
, len
);
1553 if (radio_add_work(wpa_s
, freq
, "p2p-send-action", 0,
1554 wpas_send_action_cb
, awork
) < 0) {
1563 static int wpas_send_action(void *ctx
, unsigned int freq
, const u8
*dst
,
1564 const u8
*src
, const u8
*bssid
, const u8
*buf
,
1565 size_t len
, unsigned int wait_time
)
1567 struct wpa_supplicant
*wpa_s
= ctx
;
1568 int listen_freq
= -1, send_freq
= -1;
1570 if (wpa_s
->p2p_listen_work
)
1571 listen_freq
= wpa_s
->p2p_listen_work
->freq
;
1572 if (wpa_s
->p2p_send_action_work
)
1573 send_freq
= wpa_s
->p2p_send_action_work
->freq
;
1574 if (listen_freq
!= (int) freq
&& send_freq
!= (int) freq
) {
1575 wpa_printf(MSG_DEBUG
, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1576 listen_freq
, send_freq
);
1577 return wpas_send_action_work(wpa_s
, freq
, dst
, src
, bssid
, buf
,
1581 wpa_printf(MSG_DEBUG
, "P2P: Use ongoing radio work for Action frame TX");
1582 return offchannel_send_action(wpa_s
, freq
, dst
, src
, bssid
, buf
, len
,
1584 wpas_p2p_send_action_tx_status
, 1);
1588 static void wpas_send_action_done(void *ctx
)
1590 struct wpa_supplicant
*wpa_s
= ctx
;
1592 if (wpa_s
->p2p_send_action_work
) {
1593 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
1595 os_free(wpa_s
->p2p_send_action_work
->ctx
);
1596 radio_work_done(wpa_s
->p2p_send_action_work
);
1597 wpa_s
->p2p_send_action_work
= NULL
;
1600 offchannel_send_action_done(wpa_s
);
1604 static int wpas_copy_go_neg_results(struct wpa_supplicant
*wpa_s
,
1605 struct p2p_go_neg_results
*params
)
1607 if (wpa_s
->go_params
== NULL
) {
1608 wpa_s
->go_params
= os_malloc(sizeof(*params
));
1609 if (wpa_s
->go_params
== NULL
)
1612 os_memcpy(wpa_s
->go_params
, params
, sizeof(*params
));
1617 static void wpas_start_wps_enrollee(struct wpa_supplicant
*wpa_s
,
1618 struct p2p_go_neg_results
*res
)
1620 wpa_s
->group_formation_reported
= 0;
1621 wpa_printf(MSG_DEBUG
, "P2P: Start WPS Enrollee for peer " MACSTR
1622 " dev_addr " MACSTR
" wps_method %d",
1623 MAC2STR(res
->peer_interface_addr
),
1624 MAC2STR(res
->peer_device_addr
), res
->wps_method
);
1625 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Start WPS Enrollee for SSID",
1626 res
->ssid
, res
->ssid_len
);
1627 wpa_supplicant_ap_deinit(wpa_s
);
1628 wpas_copy_go_neg_results(wpa_s
, res
);
1629 if (res
->wps_method
== WPS_PBC
) {
1630 wpas_wps_start_pbc(wpa_s
, res
->peer_interface_addr
, 1);
1631 #ifdef CONFIG_WPS_NFC
1632 } else if (res
->wps_method
== WPS_NFC
) {
1633 wpas_wps_start_nfc(wpa_s
, res
->peer_device_addr
,
1634 res
->peer_interface_addr
,
1635 wpa_s
->parent
->p2p_oob_dev_pw
,
1636 wpa_s
->parent
->p2p_oob_dev_pw_id
, 1,
1637 wpa_s
->parent
->p2p_oob_dev_pw_id
==
1638 DEV_PW_NFC_CONNECTION_HANDOVER
?
1639 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
:
1642 #endif /* CONFIG_WPS_NFC */
1644 u16 dev_pw_id
= DEV_PW_DEFAULT
;
1645 if (wpa_s
->p2p_wps_method
== WPS_P2PS
)
1646 dev_pw_id
= DEV_PW_P2PS_DEFAULT
;
1647 if (wpa_s
->p2p_wps_method
== WPS_PIN_KEYPAD
)
1648 dev_pw_id
= DEV_PW_REGISTRAR_SPECIFIED
;
1649 wpas_wps_start_pin(wpa_s
, res
->peer_interface_addr
,
1650 wpa_s
->p2p_pin
, 1, dev_pw_id
);
1655 static void wpas_p2p_add_psk_list(struct wpa_supplicant
*wpa_s
,
1656 struct wpa_ssid
*ssid
)
1658 struct wpa_ssid
*persistent
;
1659 struct psk_list_entry
*psk
;
1660 struct hostapd_data
*hapd
;
1662 if (!wpa_s
->ap_iface
)
1665 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
1667 if (persistent
== NULL
)
1670 hapd
= wpa_s
->ap_iface
->bss
[0];
1672 dl_list_for_each(psk
, &persistent
->psk_list
, struct psk_list_entry
,
1674 struct hostapd_wpa_psk
*hpsk
;
1676 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add persistent group PSK entry for "
1678 MAC2STR(psk
->addr
), psk
->p2p
);
1679 hpsk
= os_zalloc(sizeof(*hpsk
));
1682 os_memcpy(hpsk
->psk
, psk
->psk
, PMK_LEN
);
1684 os_memcpy(hpsk
->p2p_dev_addr
, psk
->addr
, ETH_ALEN
);
1686 os_memcpy(hpsk
->addr
, psk
->addr
, ETH_ALEN
);
1687 hpsk
->next
= hapd
->conf
->ssid
.wpa_psk
;
1688 hapd
->conf
->ssid
.wpa_psk
= hpsk
;
1693 static void p2p_go_dump_common_freqs(struct wpa_supplicant
*wpa_s
)
1697 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Common group frequencies (len=%u):",
1698 wpa_s
->p2p_group_common_freqs_num
);
1700 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++)
1701 wpa_dbg(wpa_s
, MSG_DEBUG
, "freq[%u]: %d",
1702 i
, wpa_s
->p2p_group_common_freqs
[i
]);
1706 static void p2p_go_save_group_common_freqs(struct wpa_supplicant
*wpa_s
,
1707 struct p2p_go_neg_results
*params
)
1709 unsigned int i
, len
= int_array_len(wpa_s
->go_params
->freq_list
);
1711 wpa_s
->p2p_group_common_freqs_num
= 0;
1712 os_free(wpa_s
->p2p_group_common_freqs
);
1713 wpa_s
->p2p_group_common_freqs
= os_calloc(len
, sizeof(int));
1714 if (!wpa_s
->p2p_group_common_freqs
)
1717 for (i
= 0; i
< len
; i
++) {
1718 if (!wpa_s
->go_params
->freq_list
[i
])
1720 wpa_s
->p2p_group_common_freqs
[i
] =
1721 wpa_s
->go_params
->freq_list
[i
];
1723 wpa_s
->p2p_group_common_freqs_num
= i
;
1727 static void p2p_config_write(struct wpa_supplicant
*wpa_s
)
1729 #ifndef CONFIG_NO_CONFIG_WRITE
1730 if (wpa_s
->parent
->conf
->update_config
&&
1731 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
1732 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
1733 #endif /* CONFIG_NO_CONFIG_WRITE */
1737 static void p2p_go_configured(void *ctx
, void *data
)
1739 struct wpa_supplicant
*wpa_s
= ctx
;
1740 struct p2p_go_neg_results
*params
= data
;
1741 struct wpa_ssid
*ssid
;
1742 int network_id
= -1;
1744 wpa_s
->ap_configured_cb
= NULL
;
1745 wpa_s
->ap_configured_cb_ctx
= NULL
;
1746 wpa_s
->ap_configured_cb_data
= NULL
;
1747 if (!wpa_s
->go_params
) {
1748 wpa_printf(MSG_ERROR
,
1749 "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1753 p2p_go_save_group_common_freqs(wpa_s
, params
);
1754 p2p_go_dump_common_freqs(wpa_s
);
1756 ssid
= wpa_s
->current_ssid
;
1757 if (ssid
&& ssid
->mode
== WPAS_MODE_P2P_GO
) {
1758 wpa_printf(MSG_DEBUG
, "P2P: Group setup without provisioning");
1759 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
1760 wpa_s
->global
->p2p_group_formation
= NULL
;
1761 wpas_p2p_group_started(wpa_s
, 1, ssid
, ssid
->frequency
,
1762 params
->passphrase
[0] == '\0' ?
1765 wpa_s
->global
->p2p_dev_addr
,
1766 params
->persistent_group
, "");
1767 wpa_s
->group_formation_reported
= 1;
1769 if (wpa_s
->parent
->p2ps_method_config_any
) {
1770 if (is_zero_ether_addr(wpa_s
->parent
->p2ps_join_addr
)) {
1771 wpa_dbg(wpa_s
, MSG_DEBUG
,
1772 "P2PS: Setting default PIN for ANY");
1773 wpa_supplicant_ap_wps_pin(wpa_s
, NULL
,
1774 "12345670", NULL
, 0,
1777 wpa_dbg(wpa_s
, MSG_DEBUG
,
1778 "P2PS: Setting default PIN for " MACSTR
,
1779 MAC2STR(wpa_s
->parent
->p2ps_join_addr
));
1780 wpa_supplicant_ap_wps_pin(
1781 wpa_s
, wpa_s
->parent
->p2ps_join_addr
,
1782 "12345670", NULL
, 0, 0);
1784 wpa_s
->parent
->p2ps_method_config_any
= 0;
1787 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
1788 if (params
->persistent_group
) {
1789 network_id
= wpas_p2p_store_persistent_group(
1790 wpa_s
->parent
, ssid
,
1791 wpa_s
->global
->p2p_dev_addr
);
1792 wpas_p2p_add_psk_list(wpa_s
, ssid
);
1795 network_id
= ssid
->id
;
1796 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 0);
1797 wpas_p2p_cross_connect_setup(wpa_s
);
1798 wpas_p2p_set_group_idle_timeout(wpa_s
);
1800 if (wpa_s
->p2p_first_connection_timeout
) {
1801 wpa_dbg(wpa_s
, MSG_DEBUG
,
1802 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1803 wpa_s
->p2p_first_connection_timeout
);
1804 wpa_s
->p2p_go_group_formation_completed
= 0;
1805 wpa_s
->global
->p2p_group_formation
= wpa_s
;
1806 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
1807 wpa_s
->parent
, NULL
);
1808 eloop_register_timeout(
1809 wpa_s
->p2p_first_connection_timeout
, 0,
1810 wpas_p2p_group_formation_timeout
,
1811 wpa_s
->parent
, NULL
);
1817 wpa_printf(MSG_DEBUG
, "P2P: Setting up WPS for GO provisioning");
1818 if (wpa_supplicant_ap_mac_addr_filter(wpa_s
,
1819 params
->peer_interface_addr
)) {
1820 wpa_printf(MSG_DEBUG
, "P2P: Failed to setup MAC address "
1824 if (params
->wps_method
== WPS_PBC
) {
1825 wpa_supplicant_ap_wps_pbc(wpa_s
, params
->peer_interface_addr
,
1826 params
->peer_device_addr
);
1827 #ifdef CONFIG_WPS_NFC
1828 } else if (params
->wps_method
== WPS_NFC
) {
1829 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
1830 DEV_PW_NFC_CONNECTION_HANDOVER
&&
1831 !wpa_s
->parent
->p2p_oob_dev_pw
) {
1832 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
1835 wpas_ap_wps_add_nfc_pw(
1836 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
1837 wpa_s
->parent
->p2p_oob_dev_pw
,
1838 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
1839 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
1840 #endif /* CONFIG_WPS_NFC */
1841 } else if (wpa_s
->p2p_pin
[0])
1842 wpa_supplicant_ap_wps_pin(wpa_s
, params
->peer_interface_addr
,
1843 wpa_s
->p2p_pin
, NULL
, 0, 0);
1844 os_free(wpa_s
->go_params
);
1845 wpa_s
->go_params
= NULL
;
1849 static void wpas_start_wps_go(struct wpa_supplicant
*wpa_s
,
1850 struct p2p_go_neg_results
*params
,
1851 int group_formation
)
1853 struct wpa_ssid
*ssid
;
1855 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Starting GO");
1856 if (wpas_copy_go_neg_results(wpa_s
, params
) < 0) {
1857 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not copy GO Negotiation "
1862 ssid
= wpa_config_add_network(wpa_s
->conf
);
1864 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not add network for GO");
1868 wpa_s
->show_group_started
= 0;
1869 wpa_s
->p2p_go_group_formation_completed
= 0;
1870 wpa_s
->group_formation_reported
= 0;
1871 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
1873 wpa_config_set_network_defaults(ssid
);
1874 ssid
->temporary
= 1;
1875 ssid
->p2p_group
= 1;
1876 ssid
->p2p_persistent_group
= params
->persistent_group
;
1877 ssid
->mode
= group_formation
? WPAS_MODE_P2P_GROUP_FORMATION
:
1879 ssid
->frequency
= params
->freq
;
1880 ssid
->ht40
= params
->ht40
;
1881 ssid
->vht
= params
->vht
;
1882 ssid
->max_oper_chwidth
= params
->max_oper_chwidth
;
1883 ssid
->vht_center_freq2
= params
->vht_center_freq2
;
1884 ssid
->ssid
= os_zalloc(params
->ssid_len
+ 1);
1886 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
1887 ssid
->ssid_len
= params
->ssid_len
;
1889 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
1890 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1891 ssid
->proto
= WPA_PROTO_RSN
;
1892 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1893 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
1894 if (params
->freq
> 56160) {
1896 * Enable GCMP instead of CCMP as pairwise_cipher and
1897 * group_cipher in 60 GHz.
1899 ssid
->pairwise_cipher
= WPA_CIPHER_GCMP
;
1900 ssid
->group_cipher
= WPA_CIPHER_GCMP
;
1901 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1904 if (os_strlen(params
->passphrase
) > 0) {
1905 ssid
->passphrase
= os_strdup(params
->passphrase
);
1906 if (ssid
->passphrase
== NULL
) {
1907 wpa_msg_global(wpa_s
, MSG_ERROR
,
1908 "P2P: Failed to copy passphrase for GO");
1909 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1913 ssid
->passphrase
= NULL
;
1914 ssid
->psk_set
= params
->psk_set
;
1916 os_memcpy(ssid
->psk
, params
->psk
, sizeof(ssid
->psk
));
1917 else if (ssid
->passphrase
)
1918 wpa_config_update_psk(ssid
);
1919 ssid
->ap_max_inactivity
= wpa_s
->parent
->conf
->p2p_go_max_inactivity
;
1921 wpa_s
->ap_configured_cb
= p2p_go_configured
;
1922 wpa_s
->ap_configured_cb_ctx
= wpa_s
;
1923 wpa_s
->ap_configured_cb_data
= wpa_s
->go_params
;
1924 wpa_s
->scan_req
= NORMAL_SCAN_REQ
;
1925 wpa_s
->connect_without_scan
= ssid
;
1926 wpa_s
->reassociate
= 1;
1927 wpa_s
->disconnected
= 0;
1928 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Request scan (that will be skipped) to "
1930 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1934 static void wpas_p2p_clone_config(struct wpa_supplicant
*dst
,
1935 const struct wpa_supplicant
*src
)
1937 struct wpa_config
*d
;
1938 const struct wpa_config
*s
;
1943 #define C(n) if (s->n) d->n = os_strdup(s->n)
1952 os_memcpy(d
->device_type
, s
->device_type
, WPS_DEV_TYPE_LEN
);
1953 os_memcpy(d
->sec_device_type
, s
->sec_device_type
,
1954 sizeof(d
->sec_device_type
));
1955 d
->num_sec_device_types
= s
->num_sec_device_types
;
1957 d
->p2p_group_idle
= s
->p2p_group_idle
;
1958 d
->p2p_go_freq_change_policy
= s
->p2p_go_freq_change_policy
;
1959 d
->p2p_intra_bss
= s
->p2p_intra_bss
;
1960 d
->persistent_reconnect
= s
->persistent_reconnect
;
1961 d
->max_num_sta
= s
->max_num_sta
;
1962 d
->pbc_in_m1
= s
->pbc_in_m1
;
1963 d
->ignore_old_scan_res
= s
->ignore_old_scan_res
;
1964 d
->beacon_int
= s
->beacon_int
;
1965 d
->dtim_period
= s
->dtim_period
;
1966 d
->p2p_go_ctwindow
= s
->p2p_go_ctwindow
;
1967 d
->disassoc_low_ack
= s
->disassoc_low_ack
;
1968 d
->disable_scan_offload
= s
->disable_scan_offload
;
1969 d
->passive_scan
= s
->passive_scan
;
1971 if (s
->wps_nfc_dh_privkey
&& s
->wps_nfc_dh_pubkey
) {
1972 d
->wps_nfc_dh_privkey
= wpabuf_dup(s
->wps_nfc_dh_privkey
);
1973 d
->wps_nfc_dh_pubkey
= wpabuf_dup(s
->wps_nfc_dh_pubkey
);
1975 d
->p2p_cli_probe
= s
->p2p_cli_probe
;
1979 static void wpas_p2p_get_group_ifname(struct wpa_supplicant
*wpa_s
,
1980 char *ifname
, size_t len
)
1982 char *ifname_ptr
= wpa_s
->ifname
;
1984 if (os_strncmp(wpa_s
->ifname
, P2P_MGMT_DEVICE_PREFIX
,
1985 os_strlen(P2P_MGMT_DEVICE_PREFIX
)) == 0) {
1986 ifname_ptr
= os_strrchr(wpa_s
->ifname
, '-') + 1;
1989 os_snprintf(ifname
, len
, "p2p-%s-%d", ifname_ptr
, wpa_s
->p2p_group_idx
);
1990 if (os_strlen(ifname
) >= IFNAMSIZ
&&
1991 os_strlen(wpa_s
->ifname
) < IFNAMSIZ
) {
1994 /* Try to avoid going over the IFNAMSIZ length limit */
1995 res
= os_snprintf(ifname
, len
, "p2p-%d", wpa_s
->p2p_group_idx
);
1996 if (os_snprintf_error(len
, res
) && len
)
1997 ifname
[len
- 1] = '\0';
2002 static int wpas_p2p_add_group_interface(struct wpa_supplicant
*wpa_s
,
2003 enum wpa_driver_if_type type
)
2005 char ifname
[120], force_ifname
[120];
2007 if (wpa_s
->pending_interface_name
[0]) {
2008 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual interface exists "
2009 "- skip creation of a new one");
2010 if (is_zero_ether_addr(wpa_s
->pending_interface_addr
)) {
2011 wpa_printf(MSG_DEBUG
, "P2P: Pending virtual address "
2012 "unknown?! ifname='%s'",
2013 wpa_s
->pending_interface_name
);
2019 wpas_p2p_get_group_ifname(wpa_s
, ifname
, sizeof(ifname
));
2020 force_ifname
[0] = '\0';
2022 wpa_printf(MSG_DEBUG
, "P2P: Create a new interface %s for the group",
2024 wpa_s
->p2p_group_idx
++;
2026 wpa_s
->pending_interface_type
= type
;
2027 if (wpa_drv_if_add(wpa_s
, type
, ifname
, NULL
, NULL
, force_ifname
,
2028 wpa_s
->pending_interface_addr
, NULL
) < 0) {
2029 wpa_printf(MSG_ERROR
, "P2P: Failed to create new group "
2034 if (force_ifname
[0]) {
2035 wpa_printf(MSG_DEBUG
, "P2P: Driver forced interface name %s",
2037 os_strlcpy(wpa_s
->pending_interface_name
, force_ifname
,
2038 sizeof(wpa_s
->pending_interface_name
));
2040 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
2041 sizeof(wpa_s
->pending_interface_name
));
2042 wpa_printf(MSG_DEBUG
, "P2P: Created pending virtual interface %s addr "
2043 MACSTR
, wpa_s
->pending_interface_name
,
2044 MAC2STR(wpa_s
->pending_interface_addr
));
2050 static void wpas_p2p_remove_pending_group_interface(
2051 struct wpa_supplicant
*wpa_s
)
2053 if (!wpa_s
->pending_interface_name
[0] ||
2054 is_zero_ether_addr(wpa_s
->pending_interface_addr
))
2055 return; /* No pending virtual interface */
2057 wpa_printf(MSG_DEBUG
, "P2P: Removing pending group interface %s",
2058 wpa_s
->pending_interface_name
);
2059 wpa_drv_if_remove(wpa_s
, wpa_s
->pending_interface_type
,
2060 wpa_s
->pending_interface_name
);
2061 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
2062 wpa_s
->pending_interface_name
[0] = '\0';
2063 wpa_s
->global
->pending_group_iface_for_p2ps
= 0;
2067 static struct wpa_supplicant
*
2068 wpas_p2p_init_group_interface(struct wpa_supplicant
*wpa_s
, int go
)
2070 struct wpa_interface iface
;
2071 struct wpa_supplicant
*group_wpa_s
;
2073 if (!wpa_s
->pending_interface_name
[0]) {
2074 wpa_printf(MSG_ERROR
, "P2P: No pending group interface");
2075 if (!wpas_p2p_create_iface(wpa_s
))
2078 * Something has forced us to remove the pending interface; try
2079 * to create a new one and hope for the best that we will get
2080 * the same local address.
2082 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
2083 WPA_IF_P2P_CLIENT
) < 0)
2087 os_memset(&iface
, 0, sizeof(iface
));
2088 iface
.ifname
= wpa_s
->pending_interface_name
;
2089 iface
.driver
= wpa_s
->driver
->name
;
2090 if (wpa_s
->conf
->ctrl_interface
== NULL
&&
2091 wpa_s
->parent
!= wpa_s
&&
2093 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
))
2094 iface
.ctrl_interface
= wpa_s
->parent
->conf
->ctrl_interface
;
2096 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
2097 iface
.driver_param
= wpa_s
->conf
->driver_param
;
2098 group_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
, wpa_s
);
2099 if (group_wpa_s
== NULL
) {
2100 wpa_printf(MSG_ERROR
, "P2P: Failed to create new "
2101 "wpa_supplicant interface");
2104 wpa_s
->pending_interface_name
[0] = '\0';
2105 group_wpa_s
->p2p_group_interface
= go
? P2P_GROUP_INTERFACE_GO
:
2106 P2P_GROUP_INTERFACE_CLIENT
;
2107 wpa_s
->global
->p2p_group_formation
= group_wpa_s
;
2108 wpa_s
->global
->pending_group_iface_for_p2ps
= 0;
2110 wpas_p2p_clone_config(group_wpa_s
, wpa_s
);
2116 static void wpas_p2p_group_formation_timeout(void *eloop_ctx
,
2119 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
2120 wpa_printf(MSG_DEBUG
, "P2P: Group Formation timed out");
2121 wpas_p2p_group_formation_failed(wpa_s
, 0);
2125 static void wpas_p2p_group_formation_failed(struct wpa_supplicant
*wpa_s
,
2126 int already_deleted
)
2128 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2129 wpa_s
->parent
, NULL
);
2130 if (wpa_s
->global
->p2p
)
2131 p2p_group_formation_failed(wpa_s
->global
->p2p
);
2132 wpas_group_formation_completed(wpa_s
, 0, already_deleted
);
2136 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant
*wpa_s
)
2138 wpa_printf(MSG_DEBUG
, "P2P: Reject group formation due to WPS provisioning failure");
2139 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2140 wpa_s
->parent
, NULL
);
2141 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
2142 wpa_s
->parent
, NULL
);
2143 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
2147 void wpas_p2p_ap_setup_failed(struct wpa_supplicant
*wpa_s
)
2149 if (wpa_s
->global
->p2p_group_formation
!= wpa_s
)
2151 /* Speed up group formation timeout since this cannot succeed */
2152 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
2153 wpa_s
->parent
, NULL
);
2154 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
2155 wpa_s
->parent
, NULL
);
2159 static void wpas_go_neg_completed(void *ctx
, struct p2p_go_neg_results
*res
)
2161 struct wpa_supplicant
*wpa_s
= ctx
;
2163 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
2164 wpa_drv_cancel_remain_on_channel(wpa_s
);
2165 wpa_s
->off_channel_freq
= 0;
2166 wpa_s
->roc_waiting_drv_freq
= 0;
2170 wpa_msg_global(wpa_s
, MSG_INFO
,
2171 P2P_EVENT_GO_NEG_FAILURE
"status=%d",
2173 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
2174 wpas_p2p_remove_pending_group_interface(wpa_s
);
2178 if (!res
->role_go
) {
2179 /* Inform driver of the operating channel of GO. */
2180 wpa_drv_set_prob_oper_freq(wpa_s
, res
->freq
);
2183 if (wpa_s
->p2p_go_ht40
)
2185 if (wpa_s
->p2p_go_vht
)
2187 res
->max_oper_chwidth
= wpa_s
->p2p_go_max_oper_chwidth
;
2188 res
->vht_center_freq2
= wpa_s
->p2p_go_vht_center_freq2
;
2190 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_SUCCESS
"role=%s "
2191 "freq=%d ht40=%d peer_dev=" MACSTR
" peer_iface=" MACSTR
2193 res
->role_go
? "GO" : "client", res
->freq
, res
->ht40
,
2194 MAC2STR(res
->peer_device_addr
),
2195 MAC2STR(res
->peer_interface_addr
),
2196 p2p_wps_method_text(res
->wps_method
));
2197 wpas_notify_p2p_go_neg_completed(wpa_s
, res
);
2199 if (res
->role_go
&& wpa_s
->p2p_persistent_id
>= 0) {
2200 struct wpa_ssid
*ssid
;
2201 ssid
= wpa_config_get_network(wpa_s
->conf
,
2202 wpa_s
->p2p_persistent_id
);
2203 if (ssid
&& ssid
->disabled
== 2 &&
2204 ssid
->mode
== WPAS_MODE_P2P_GO
&& ssid
->passphrase
) {
2205 size_t len
= os_strlen(ssid
->passphrase
);
2206 wpa_printf(MSG_DEBUG
, "P2P: Override passphrase based "
2207 "on requested persistent group");
2208 os_memcpy(res
->passphrase
, ssid
->passphrase
, len
);
2209 res
->passphrase
[len
] = '\0';
2213 if (wpa_s
->create_p2p_iface
) {
2214 struct wpa_supplicant
*group_wpa_s
=
2215 wpas_p2p_init_group_interface(wpa_s
, res
->role_go
);
2216 if (group_wpa_s
== NULL
) {
2217 wpas_p2p_remove_pending_group_interface(wpa_s
);
2218 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
,
2220 wpas_p2p_group_formation_failed(wpa_s
, 1);
2223 if (group_wpa_s
!= wpa_s
) {
2224 os_memcpy(group_wpa_s
->p2p_pin
, wpa_s
->p2p_pin
,
2225 sizeof(group_wpa_s
->p2p_pin
));
2226 group_wpa_s
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
2228 os_memset(wpa_s
->pending_interface_addr
, 0, ETH_ALEN
);
2229 wpa_s
->pending_interface_name
[0] = '\0';
2230 group_wpa_s
->p2p_in_provisioning
= 1;
2233 wpas_start_wps_go(group_wpa_s
, res
, 1);
2235 os_get_reltime(&group_wpa_s
->scan_min_time
);
2236 wpas_start_wps_enrollee(group_wpa_s
, res
);
2239 wpa_s
->p2p_in_provisioning
= 1;
2240 wpa_s
->global
->p2p_group_formation
= wpa_s
;
2243 wpas_start_wps_go(wpa_s
, res
, 1);
2245 os_get_reltime(&wpa_s
->scan_min_time
);
2246 wpas_start_wps_enrollee(ctx
, res
);
2250 wpa_s
->p2p_long_listen
= 0;
2251 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
2253 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
2254 eloop_register_timeout(15 + res
->peer_config_timeout
/ 100,
2255 (res
->peer_config_timeout
% 100) * 10000,
2256 wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
2260 static void wpas_go_neg_req_rx(void *ctx
, const u8
*src
, u16 dev_passwd_id
,
2263 struct wpa_supplicant
*wpa_s
= ctx
;
2264 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_GO_NEG_REQUEST MACSTR
2265 " dev_passwd_id=%u go_intent=%u", MAC2STR(src
),
2266 dev_passwd_id
, go_intent
);
2268 wpas_notify_p2p_go_neg_req(wpa_s
, src
, dev_passwd_id
, go_intent
);
2272 static void wpas_dev_found(void *ctx
, const u8
*addr
,
2273 const struct p2p_peer_info
*info
,
2276 #ifndef CONFIG_NO_STDOUT_DEBUG
2277 struct wpa_supplicant
*wpa_s
= ctx
;
2278 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2279 char *wfd_dev_info_hex
= NULL
;
2281 #ifdef CONFIG_WIFI_DISPLAY
2282 wfd_dev_info_hex
= wifi_display_subelem_hex(info
->wfd_subelems
,
2283 WFD_SUBELEM_DEVICE_INFO
);
2284 #endif /* CONFIG_WIFI_DISPLAY */
2286 if (info
->p2ps_instance
) {
2288 const u8
*buf
= wpabuf_head(info
->p2ps_instance
);
2289 size_t len
= wpabuf_len(info
->p2ps_instance
);
2296 if (len
< 4 + 2 + 1)
2298 id
= WPA_GET_LE32(buf
);
2300 methods
= WPA_GET_BE16(buf
);
2303 if (str_len
> len
- 4 - 2 - 1)
2305 os_memcpy(str
, buf
, str_len
);
2306 str
[str_len
] = '\0';
2308 len
-= str_len
+ sizeof(u32
) + sizeof(u16
) + sizeof(u8
);
2310 wpa_msg_global(wpa_s
, MSG_INFO
,
2311 P2P_EVENT_DEVICE_FOUND MACSTR
2312 " p2p_dev_addr=" MACSTR
2313 " pri_dev_type=%s name='%s'"
2314 " config_methods=0x%x"
2317 " adv_id=%x asp_svc=%s%s",
2319 MAC2STR(info
->p2p_device_addr
),
2320 wps_dev_type_bin2str(
2322 devtype
, sizeof(devtype
)),
2323 info
->device_name
, methods
,
2324 info
->dev_capab
, info
->group_capab
,
2326 info
->vendor_elems
?
2327 " vendor_elems=1" : "");
2332 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_FOUND MACSTR
2333 " p2p_dev_addr=" MACSTR
2334 " pri_dev_type=%s name='%s' config_methods=0x%x "
2335 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2336 MAC2STR(addr
), MAC2STR(info
->p2p_device_addr
),
2337 wps_dev_type_bin2str(info
->pri_dev_type
, devtype
,
2339 info
->device_name
, info
->config_methods
,
2340 info
->dev_capab
, info
->group_capab
,
2341 wfd_dev_info_hex
? " wfd_dev_info=0x" : "",
2342 wfd_dev_info_hex
? wfd_dev_info_hex
: "",
2343 info
->vendor_elems
? " vendor_elems=1" : "",
2347 os_free(wfd_dev_info_hex
);
2348 #endif /* CONFIG_NO_STDOUT_DEBUG */
2350 wpas_notify_p2p_device_found(ctx
, info
->p2p_device_addr
, new_device
);
2354 static void wpas_dev_lost(void *ctx
, const u8
*dev_addr
)
2356 struct wpa_supplicant
*wpa_s
= ctx
;
2358 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_DEVICE_LOST
2359 "p2p_dev_addr=" MACSTR
, MAC2STR(dev_addr
));
2361 wpas_notify_p2p_device_lost(wpa_s
, dev_addr
);
2365 static void wpas_find_stopped(void *ctx
)
2367 struct wpa_supplicant
*wpa_s
= ctx
;
2368 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_FIND_STOPPED
);
2369 wpas_notify_p2p_find_stopped(wpa_s
);
2373 struct wpas_p2p_listen_work
{
2375 unsigned int duration
;
2376 struct wpabuf
*probe_resp_ie
;
2380 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work
*lwork
)
2384 wpabuf_free(lwork
->probe_resp_ie
);
2389 static void wpas_p2p_listen_work_done(struct wpa_supplicant
*wpa_s
)
2391 struct wpas_p2p_listen_work
*lwork
;
2393 if (!wpa_s
->p2p_listen_work
)
2396 lwork
= wpa_s
->p2p_listen_work
->ctx
;
2397 wpas_p2p_listen_work_free(lwork
);
2398 radio_work_done(wpa_s
->p2p_listen_work
);
2399 wpa_s
->p2p_listen_work
= NULL
;
2403 static void wpas_start_listen_cb(struct wpa_radio_work
*work
, int deinit
)
2405 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
2406 struct wpas_p2p_listen_work
*lwork
= work
->ctx
;
2407 unsigned int duration
;
2410 if (work
->started
) {
2411 wpa_s
->p2p_listen_work
= NULL
;
2412 wpas_stop_listen(wpa_s
);
2414 wpas_p2p_listen_work_free(lwork
);
2418 wpa_s
->p2p_listen_work
= work
;
2420 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, lwork
->probe_resp_ie
, NULL
);
2422 if (wpa_drv_probe_req_report(wpa_s
, 1) < 0) {
2423 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver to "
2424 "report received Probe Request frames");
2425 wpas_p2p_listen_work_done(wpa_s
);
2429 wpa_s
->pending_listen_freq
= lwork
->freq
;
2430 wpa_s
->pending_listen_duration
= lwork
->duration
;
2432 duration
= lwork
->duration
;
2433 #ifdef CONFIG_TESTING_OPTIONS
2434 if (wpa_s
->extra_roc_dur
) {
2435 wpa_printf(MSG_DEBUG
, "TESTING: Increase ROC duration %u -> %u",
2436 duration
, duration
+ wpa_s
->extra_roc_dur
);
2437 duration
+= wpa_s
->extra_roc_dur
;
2439 #endif /* CONFIG_TESTING_OPTIONS */
2441 if (wpa_drv_remain_on_channel(wpa_s
, lwork
->freq
, duration
) < 0) {
2442 wpa_printf(MSG_DEBUG
, "P2P: Failed to request the driver "
2443 "to remain on channel (%u MHz) for Listen "
2444 "state", lwork
->freq
);
2445 wpas_p2p_listen_work_done(wpa_s
);
2446 wpa_s
->pending_listen_freq
= 0;
2449 wpa_s
->off_channel_freq
= 0;
2450 wpa_s
->roc_waiting_drv_freq
= lwork
->freq
;
2454 static int wpas_start_listen(void *ctx
, unsigned int freq
,
2455 unsigned int duration
,
2456 const struct wpabuf
*probe_resp_ie
)
2458 struct wpa_supplicant
*wpa_s
= ctx
;
2459 struct wpas_p2p_listen_work
*lwork
;
2461 if (wpa_s
->p2p_listen_work
) {
2462 wpa_printf(MSG_DEBUG
, "P2P: Reject start_listen since p2p_listen_work already exists");
2466 lwork
= os_zalloc(sizeof(*lwork
));
2470 lwork
->duration
= duration
;
2471 if (probe_resp_ie
) {
2472 lwork
->probe_resp_ie
= wpabuf_dup(probe_resp_ie
);
2473 if (lwork
->probe_resp_ie
== NULL
) {
2474 wpas_p2p_listen_work_free(lwork
);
2479 if (radio_add_work(wpa_s
, freq
, "p2p-listen", 0, wpas_start_listen_cb
,
2481 wpas_p2p_listen_work_free(lwork
);
2489 static void wpas_stop_listen(void *ctx
)
2491 struct wpa_supplicant
*wpa_s
= ctx
;
2492 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
2493 wpa_drv_cancel_remain_on_channel(wpa_s
);
2494 wpa_s
->off_channel_freq
= 0;
2495 wpa_s
->roc_waiting_drv_freq
= 0;
2497 wpa_drv_set_ap_wps_ie(wpa_s
, NULL
, NULL
, NULL
);
2500 * Don't cancel Probe Request RX reporting for a connected P2P Client
2501 * handling Probe Request frames.
2503 if (!wpa_s
->p2p_cli_probe
)
2504 wpa_drv_probe_req_report(wpa_s
, 0);
2506 wpas_p2p_listen_work_done(wpa_s
);
2510 static int wpas_send_probe_resp(void *ctx
, const struct wpabuf
*buf
,
2513 struct wpa_supplicant
*wpa_s
= ctx
;
2514 return wpa_drv_send_mlme(wpa_s
, wpabuf_head(buf
), wpabuf_len(buf
), 1,
2519 static void wpas_prov_disc_local_display(struct wpa_supplicant
*wpa_s
,
2520 const u8
*peer
, const char *params
,
2521 unsigned int generated_pin
)
2523 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2524 " %08d%s", MAC2STR(peer
), generated_pin
, params
);
2528 static void wpas_prov_disc_local_keypad(struct wpa_supplicant
*wpa_s
,
2529 const u8
*peer
, const char *params
)
2531 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2532 "%s", MAC2STR(peer
), params
);
2536 static void wpas_prov_disc_req(void *ctx
, const u8
*peer
, u16 config_methods
,
2537 const u8
*dev_addr
, const u8
*pri_dev_type
,
2538 const char *dev_name
, u16 supp_config_methods
,
2539 u8 dev_capab
, u8 group_capab
, const u8
*group_id
,
2540 size_t group_id_len
)
2542 struct wpa_supplicant
*wpa_s
= ctx
;
2543 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
2545 u8 empty_dev_type
[8];
2546 unsigned int generated_pin
= 0;
2547 struct wpa_supplicant
*group
= NULL
;
2551 for (group
= wpa_s
->global
->ifaces
; group
; group
= group
->next
)
2553 struct wpa_ssid
*s
= group
->current_ssid
;
2555 s
->mode
== WPAS_MODE_P2P_GO
&&
2556 group_id_len
- ETH_ALEN
== s
->ssid_len
&&
2557 os_memcmp(group_id
+ ETH_ALEN
, s
->ssid
,
2563 if (pri_dev_type
== NULL
) {
2564 os_memset(empty_dev_type
, 0, sizeof(empty_dev_type
));
2565 pri_dev_type
= empty_dev_type
;
2567 res
= os_snprintf(params
, sizeof(params
), " p2p_dev_addr=" MACSTR
2568 " pri_dev_type=%s name='%s' config_methods=0x%x "
2569 "dev_capab=0x%x group_capab=0x%x%s%s",
2571 wps_dev_type_bin2str(pri_dev_type
, devtype
,
2573 dev_name
, supp_config_methods
, dev_capab
, group_capab
,
2574 group
? " group=" : "",
2575 group
? group
->ifname
: "");
2576 if (os_snprintf_error(sizeof(params
), res
))
2577 wpa_printf(MSG_DEBUG
, "P2P: PD Request event truncated");
2578 params
[sizeof(params
) - 1] = '\0';
2580 if (config_methods
& WPS_CONFIG_DISPLAY
) {
2581 generated_pin
= wps_generate_pin();
2582 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2584 } else if (config_methods
& WPS_CONFIG_KEYPAD
)
2585 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2586 else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2587 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_REQ
2588 MACSTR
"%s", MAC2STR(peer
), params
);
2590 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 1 /* request */,
2591 P2P_PROV_DISC_SUCCESS
,
2592 config_methods
, generated_pin
);
2596 static void wpas_prov_disc_resp(void *ctx
, const u8
*peer
, u16 config_methods
)
2598 struct wpa_supplicant
*wpa_s
= ctx
;
2599 unsigned int generated_pin
= 0;
2602 if (wpa_s
->pending_pd_before_join
&&
2603 (os_memcmp(peer
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) == 0 ||
2604 os_memcmp(peer
, wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0)) {
2605 wpa_s
->pending_pd_before_join
= 0;
2606 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2607 "join-existing-group operation");
2608 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
2612 if (wpa_s
->pending_pd_use
== AUTO_PD_JOIN
||
2613 wpa_s
->pending_pd_use
== AUTO_PD_GO_NEG
) {
2616 res
= os_snprintf(params
, sizeof(params
), " peer_go=%d",
2617 wpa_s
->pending_pd_use
== AUTO_PD_JOIN
);
2618 if (os_snprintf_error(sizeof(params
), res
))
2619 params
[sizeof(params
) - 1] = '\0';
2623 if (config_methods
& WPS_CONFIG_DISPLAY
)
2624 wpas_prov_disc_local_keypad(wpa_s
, peer
, params
);
2625 else if (config_methods
& WPS_CONFIG_KEYPAD
) {
2626 generated_pin
= wps_generate_pin();
2627 wpas_prov_disc_local_display(wpa_s
, peer
, params
,
2629 } else if (config_methods
& WPS_CONFIG_PUSHBUTTON
)
2630 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_PBC_RESP
2631 MACSTR
"%s", MAC2STR(peer
), params
);
2633 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2634 P2P_PROV_DISC_SUCCESS
,
2635 config_methods
, generated_pin
);
2639 static void wpas_prov_disc_fail(void *ctx
, const u8
*peer
,
2640 enum p2p_prov_disc_status status
,
2641 u32 adv_id
, const u8
*adv_mac
,
2642 const char *deferred_session_resp
)
2644 struct wpa_supplicant
*wpa_s
= ctx
;
2646 if (wpa_s
->p2p_fallback_to_go_neg
) {
2647 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: PD for p2p_connect-auto "
2648 "failed - fall back to GO Negotiation");
2649 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
2650 P2P_EVENT_FALLBACK_TO_GO_NEG
2651 "reason=PD-failed");
2652 wpas_p2p_fallback_to_go_neg(wpa_s
, 0);
2656 if (status
== P2P_PROV_DISC_TIMEOUT_JOIN
) {
2657 wpa_s
->pending_pd_before_join
= 0;
2658 wpa_printf(MSG_DEBUG
, "P2P: Starting pending "
2659 "join-existing-group operation (no ACK for PD "
2661 wpas_p2p_join_start(wpa_s
, 0, NULL
, 0);
2665 if (adv_id
&& adv_mac
&& deferred_session_resp
) {
2666 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2667 " p2p_dev_addr=" MACSTR
" status=%d adv_id=%x"
2668 " deferred_session_resp='%s'",
2669 MAC2STR(peer
), status
, adv_id
,
2670 deferred_session_resp
);
2671 } else if (adv_id
&& adv_mac
) {
2672 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2673 " p2p_dev_addr=" MACSTR
" status=%d adv_id=%x",
2674 MAC2STR(peer
), status
, adv_id
);
2676 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_PROV_DISC_FAILURE
2677 " p2p_dev_addr=" MACSTR
" status=%d",
2678 MAC2STR(peer
), status
);
2681 wpas_notify_p2p_provision_discovery(wpa_s
, peer
, 0 /* response */,
2686 static int freq_included(struct wpa_supplicant
*wpa_s
,
2687 const struct p2p_channels
*channels
,
2690 if ((channels
== NULL
|| p2p_channels_includes_freq(channels
, freq
)) &&
2691 wpas_p2p_go_is_peer_freq(wpa_s
, freq
))
2697 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant
*wpa_s
)
2699 unsigned int num
= P2P_MAX_CHANNELS
;
2703 p2p_go_dump_common_freqs(wpa_s
);
2704 common_freqs
= os_calloc(num
, sizeof(int));
2708 ret
= p2p_group_get_common_freqs(wpa_s
->p2p_group
, common_freqs
, &num
);
2710 wpa_dbg(wpa_s
, MSG_DEBUG
,
2711 "P2P: Failed to get group common freqs");
2712 os_free(common_freqs
);
2716 os_free(wpa_s
->p2p_group_common_freqs
);
2717 wpa_s
->p2p_group_common_freqs
= common_freqs
;
2718 wpa_s
->p2p_group_common_freqs_num
= num
;
2719 p2p_go_dump_common_freqs(wpa_s
);
2724 * Check if the given frequency is one of the possible operating frequencies
2725 * set after the completion of the GO Negotiation.
2727 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant
*wpa_s
, int freq
)
2731 p2p_go_dump_common_freqs(wpa_s
);
2733 /* assume no restrictions */
2734 if (!wpa_s
->p2p_group_common_freqs_num
)
2737 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++) {
2738 if (wpa_s
->p2p_group_common_freqs
[i
] == freq
)
2745 static int wpas_sta_check_ecsa(struct hostapd_data
*hapd
,
2746 struct sta_info
*sta
, void *ctx
)
2748 int *ecsa_support
= ctx
;
2750 *ecsa_support
&= sta
->ecsa_supported
;
2756 /* Check if all the peers support eCSA */
2757 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant
*wpa_s
)
2759 int ecsa_support
= 1;
2761 ap_for_each_sta(wpa_s
->ap_iface
->bss
[0], wpas_sta_check_ecsa
,
2764 return ecsa_support
;
2769 * Pick the best frequency to use from all the currently used frequencies.
2771 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant
*wpa_s
,
2772 struct wpa_used_freq_data
*freqs
,
2777 /* find a candidate freq that is supported by P2P */
2778 for (c
= 0; c
< num
; c
++)
2779 if (p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[c
].freq
))
2785 /* once we have a candidate, try to find a 'better' one */
2786 for (i
= c
+ 1; i
< num
; i
++) {
2787 if (!p2p_supported_freq(wpa_s
->global
->p2p
, freqs
[i
].freq
))
2791 * 1. Infrastructure station interfaces have higher preference.
2792 * 2. P2P Clients have higher preference.
2795 if (freqs
[i
].flags
& WPA_FREQ_USED_BY_INFRA_STATION
) {
2800 if ((freqs
[i
].flags
& WPA_FREQ_USED_BY_P2P_CLIENT
))
2803 return freqs
[c
].freq
;
2807 static u8
wpas_invitation_process(void *ctx
, const u8
*sa
, const u8
*bssid
,
2808 const u8
*go_dev_addr
, const u8
*ssid
,
2809 size_t ssid_len
, int *go
, u8
*group_bssid
,
2810 int *force_freq
, int persistent_group
,
2811 const struct p2p_channels
*channels
,
2814 struct wpa_supplicant
*wpa_s
= ctx
;
2816 struct wpa_used_freq_data
*freqs
;
2817 struct wpa_supplicant
*grp
;
2820 if (!persistent_group
) {
2821 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2822 " to join an active group (SSID: %s)",
2823 MAC2STR(sa
), wpa_ssid_txt(ssid
, ssid_len
));
2824 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
2825 (os_memcmp(go_dev_addr
, wpa_s
->p2p_auth_invite
, ETH_ALEN
)
2827 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0)) {
2828 wpa_printf(MSG_DEBUG
, "P2P: Accept previously "
2829 "authorized invitation");
2833 #ifdef CONFIG_WPS_NFC
2834 if (dev_pw_id
>= 0 && wpa_s
->p2p_nfc_tag_enabled
&&
2835 dev_pw_id
== wpa_s
->p2p_oob_dev_pw_id
) {
2836 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation based on local enabled NFC Tag");
2837 wpa_s
->p2p_wps_method
= WPS_NFC
;
2838 wpa_s
->pending_join_wps_method
= WPS_NFC
;
2839 os_memcpy(wpa_s
->pending_join_dev_addr
,
2840 go_dev_addr
, ETH_ALEN
);
2841 os_memcpy(wpa_s
->pending_join_iface_addr
,
2845 #endif /* CONFIG_WPS_NFC */
2848 * Do not accept the invitation automatically; notify user and
2851 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2854 grp
= wpas_get_p2p_group(wpa_s
, ssid
, ssid_len
, go
);
2856 wpa_printf(MSG_DEBUG
, "P2P: Accept invitation to already "
2857 "running persistent group");
2859 os_memcpy(group_bssid
, grp
->own_addr
, ETH_ALEN
);
2863 if (!is_zero_ether_addr(wpa_s
->p2p_auth_invite
) &&
2864 os_memcmp(sa
, wpa_s
->p2p_auth_invite
, ETH_ALEN
) == 0) {
2865 wpa_printf(MSG_DEBUG
, "P2P: Accept previously initiated "
2866 "invitation to re-invoke a persistent group");
2867 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
2868 } else if (!wpa_s
->conf
->persistent_reconnect
)
2869 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
;
2871 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2872 if (s
->disabled
== 2 &&
2873 os_memcmp(s
->bssid
, go_dev_addr
, ETH_ALEN
) == 0 &&
2874 s
->ssid_len
== ssid_len
&&
2875 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2880 wpa_printf(MSG_DEBUG
, "P2P: Invitation from " MACSTR
2881 " requested reinvocation of an unknown group",
2883 return P2P_SC_FAIL_UNKNOWN_GROUP
;
2886 if (s
->mode
== WPAS_MODE_P2P_GO
&& !wpas_p2p_create_iface(wpa_s
)) {
2888 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
) {
2889 wpa_printf(MSG_DEBUG
, "P2P: The only available "
2890 "interface is already in use - reject "
2892 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2894 os_memcpy(group_bssid
, wpa_s
->own_addr
, ETH_ALEN
);
2895 } else if (s
->mode
== WPAS_MODE_P2P_GO
) {
2897 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
) < 0)
2899 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
2900 "interface address for the group");
2901 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE
;
2903 os_memcpy(group_bssid
, wpa_s
->pending_interface_addr
,
2908 wpas_p2p_set_own_freq_preference(wpa_s
, 0);
2911 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
2912 sizeof(struct wpa_used_freq_data
));
2914 int num_channels
= wpa_s
->num_multichan_concurrent
;
2915 int num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
, num_channels
);
2916 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
2920 /* Get one of the frequencies currently in use */
2921 if (best_freq
> 0) {
2922 wpa_printf(MSG_DEBUG
, "P2P: Trying to prefer a channel already used by one of the interfaces");
2923 wpas_p2p_set_own_freq_preference(wpa_s
, best_freq
);
2925 if (wpa_s
->num_multichan_concurrent
< 2 ||
2926 wpas_p2p_num_unused_channels(wpa_s
) < 1) {
2927 wpa_printf(MSG_DEBUG
, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2928 *force_freq
= best_freq
;
2932 if (*force_freq
> 0 && wpa_s
->num_multichan_concurrent
> 1 &&
2933 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
2935 /* We are the client */
2936 wpa_printf(MSG_DEBUG
, "P2P: Peer was found to be "
2937 "running a GO but we are capable of MCC, "
2938 "figure out the best channel to use");
2940 } else if (!freq_included(wpa_s
, channels
, *force_freq
)) {
2941 /* We are the GO, and *force_freq is not in the
2943 wpa_printf(MSG_DEBUG
, "P2P: Forced GO freq %d MHz not "
2944 "in intersection but we are capable of MCC, "
2945 "figure out the best channel to use",
2951 return P2P_SC_SUCCESS
;
2955 static void wpas_invitation_received(void *ctx
, const u8
*sa
, const u8
*bssid
,
2956 const u8
*ssid
, size_t ssid_len
,
2957 const u8
*go_dev_addr
, u8 status
,
2960 struct wpa_supplicant
*wpa_s
= ctx
;
2963 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
2964 if (s
->disabled
== 2 &&
2965 s
->ssid_len
== ssid_len
&&
2966 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
2970 if (status
== P2P_SC_SUCCESS
) {
2971 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2972 " was accepted; op_freq=%d MHz, SSID=%s",
2973 MAC2STR(sa
), op_freq
, wpa_ssid_txt(ssid
, ssid_len
));
2975 int go
= s
->mode
== WPAS_MODE_P2P_GO
;
2976 wpas_p2p_group_add_persistent(
2977 wpa_s
, s
, go
, 0, op_freq
, 0, 0, 0, 0, NULL
,
2978 go
? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
: 0,
2981 wpa_s
->user_initiated_pd
= 0;
2982 wpas_p2p_join(wpa_s
, bssid
, go_dev_addr
,
2983 wpa_s
->p2p_wps_method
, 0, op_freq
,
2989 if (status
!= P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
2990 wpa_printf(MSG_DEBUG
, "P2P: Invitation from peer " MACSTR
2991 " was rejected (status %u)", MAC2STR(sa
), status
);
2997 wpa_msg_global(wpa_s
, MSG_INFO
,
2998 P2P_EVENT_INVITATION_RECEIVED
2999 "sa=" MACSTR
" go_dev_addr=" MACSTR
3000 " bssid=" MACSTR
" unknown-network",
3001 MAC2STR(sa
), MAC2STR(go_dev_addr
),
3004 wpa_msg_global(wpa_s
, MSG_INFO
,
3005 P2P_EVENT_INVITATION_RECEIVED
3006 "sa=" MACSTR
" go_dev_addr=" MACSTR
3008 MAC2STR(sa
), MAC2STR(go_dev_addr
));
3010 wpas_notify_p2p_invitation_received(wpa_s
, sa
, go_dev_addr
,
3015 if (s
->mode
== WPAS_MODE_P2P_GO
&& op_freq
) {
3016 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
3017 "sa=" MACSTR
" persistent=%d freq=%d",
3018 MAC2STR(sa
), s
->id
, op_freq
);
3020 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RECEIVED
3021 "sa=" MACSTR
" persistent=%d",
3022 MAC2STR(sa
), s
->id
);
3024 wpas_notify_p2p_invitation_received(wpa_s
, sa
, go_dev_addr
, bssid
,
3029 static void wpas_remove_persistent_peer(struct wpa_supplicant
*wpa_s
,
3030 struct wpa_ssid
*ssid
,
3031 const u8
*peer
, int inv
)
3034 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
3039 for (i
= 0; ssid
->p2p_client_list
&& i
< ssid
->num_p2p_clients
; i
++) {
3040 if (os_memcmp(ssid
->p2p_client_list
+ i
* 2 * ETH_ALEN
, peer
,
3044 if (i
>= ssid
->num_p2p_clients
|| !ssid
->p2p_client_list
) {
3045 if (ssid
->mode
!= WPAS_MODE_P2P_GO
&&
3046 os_memcmp(ssid
->bssid
, peer
, ETH_ALEN
) == 0) {
3047 wpa_printf(MSG_DEBUG
, "P2P: Remove persistent group %d "
3048 "due to invitation result", ssid
->id
);
3049 wpas_notify_network_removed(wpa_s
, ssid
);
3050 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
3053 return; /* Peer not found in client list */
3056 wpa_printf(MSG_DEBUG
, "P2P: Remove peer " MACSTR
" from persistent "
3057 "group %d client list%s",
3058 MAC2STR(peer
), ssid
->id
,
3059 inv
? " due to invitation result" : "");
3060 os_memmove(ssid
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
3061 ssid
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
3062 (ssid
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
3063 ssid
->num_p2p_clients
--;
3064 if (p2p_wpa_s
->conf
->update_config
&&
3065 wpa_config_write(p2p_wpa_s
->confname
, p2p_wpa_s
->conf
))
3066 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
3070 static void wpas_remove_persistent_client(struct wpa_supplicant
*wpa_s
,
3073 struct wpa_ssid
*ssid
;
3075 wpa_s
= wpa_s
->global
->p2p_invite_group
;
3077 return; /* No known invitation group */
3078 ssid
= wpa_s
->current_ssid
;
3079 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GO
||
3080 !ssid
->p2p_persistent_group
)
3081 return; /* Not operating as a GO in persistent group */
3082 ssid
= wpas_p2p_get_persistent(wpa_s
->parent
, peer
,
3083 ssid
->ssid
, ssid
->ssid_len
);
3084 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
3088 static void wpas_invitation_result(void *ctx
, int status
, const u8
*bssid
,
3089 const struct p2p_channels
*channels
,
3090 const u8
*peer
, int neg_freq
,
3093 struct wpa_supplicant
*wpa_s
= ctx
;
3094 struct wpa_ssid
*ssid
;
3098 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3099 "status=%d " MACSTR
,
3100 status
, MAC2STR(bssid
));
3102 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_INVITATION_RESULT
3103 "status=%d ", status
);
3105 wpas_notify_p2p_invitation_result(wpa_s
, status
, bssid
);
3107 wpa_printf(MSG_DEBUG
, "P2P: Invitation result - status=%d peer=" MACSTR
,
3108 status
, MAC2STR(peer
));
3109 if (wpa_s
->pending_invite_ssid_id
== -1) {
3110 struct wpa_supplicant
*group_if
=
3111 wpa_s
->global
->p2p_invite_group
;
3113 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
)
3114 wpas_remove_persistent_client(wpa_s
, peer
);
3117 * Invitation to an active group. If this is successful and we
3118 * are the GO, set the client wait to postpone some concurrent
3119 * operations and to allow provisioning and connection to happen
3122 if (status
== P2P_SC_SUCCESS
&&
3123 group_if
&& group_if
->current_ssid
&&
3124 group_if
->current_ssid
->mode
== WPAS_MODE_P2P_GO
) {
3125 os_get_reltime(&wpa_s
->global
->p2p_go_wait_client
);
3126 #ifdef CONFIG_TESTING_OPTIONS
3127 if (group_if
->p2p_go_csa_on_inv
) {
3128 wpa_printf(MSG_DEBUG
,
3129 "Testing: force P2P GO CSA after invitation");
3130 eloop_cancel_timeout(
3131 wpas_p2p_reconsider_moving_go
,
3133 eloop_register_timeout(
3135 wpas_p2p_reconsider_moving_go
,
3138 #endif /* CONFIG_TESTING_OPTIONS */
3143 if (status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
) {
3144 wpa_printf(MSG_DEBUG
, "P2P: Waiting for peer to start another "
3145 "invitation exchange to indicate readiness for "
3149 if (status
!= P2P_SC_SUCCESS
) {
3150 if (status
== P2P_SC_FAIL_UNKNOWN_GROUP
) {
3151 ssid
= wpa_config_get_network(
3152 wpa_s
->conf
, wpa_s
->pending_invite_ssid_id
);
3153 wpas_remove_persistent_peer(wpa_s
, ssid
, peer
, 1);
3155 wpas_p2p_remove_pending_group_interface(wpa_s
);
3159 ssid
= wpa_config_get_network(wpa_s
->conf
,
3160 wpa_s
->pending_invite_ssid_id
);
3162 wpa_printf(MSG_ERROR
, "P2P: Could not find persistent group "
3163 "data matching with invitation");
3168 * The peer could have missed our ctrl::ack frame for Invitation
3169 * Response and continue retransmitting the frame. To reduce the
3170 * likelihood of the peer not getting successful TX status for the
3171 * Invitation Response frame, wait a short time here before starting
3172 * the persistent group so that we will remain on the current channel to
3173 * acknowledge any possible retransmission from the peer.
3175 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: 50 ms wait on current channel before "
3176 "starting persistent group");
3179 if (neg_freq
> 0 && ssid
->mode
== WPAS_MODE_P2P_GO
&&
3180 freq_included(wpa_s
, channels
, neg_freq
))
3182 else if (peer_oper_freq
> 0 && ssid
->mode
!= WPAS_MODE_P2P_GO
&&
3183 freq_included(wpa_s
, channels
, peer_oper_freq
))
3184 freq
= peer_oper_freq
;
3188 wpa_printf(MSG_DEBUG
, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3189 freq
, wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
3190 wpas_p2p_group_add_persistent(wpa_s
, ssid
,
3191 ssid
->mode
== WPAS_MODE_P2P_GO
,
3192 wpa_s
->p2p_persistent_go_freq
,
3194 wpa_s
->p2p_go_vht_center_freq2
,
3195 wpa_s
->p2p_go_ht40
, wpa_s
->p2p_go_vht
,
3196 wpa_s
->p2p_go_max_oper_chwidth
,
3198 ssid
->mode
== WPAS_MODE_P2P_GO
?
3199 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
:
3204 static int wpas_p2p_disallowed_freq(struct wpa_global
*global
,
3207 if (freq_range_list_includes(&global
->p2p_go_avoid_freq
, freq
))
3209 return freq_range_list_includes(&global
->p2p_disallow_freq
, freq
);
3213 static void wpas_p2p_add_chan(struct p2p_reg_class
*reg
, u8 chan
)
3215 reg
->channel
[reg
->channels
] = chan
;
3220 static int wpas_p2p_default_channels(struct wpa_supplicant
*wpa_s
,
3221 struct p2p_channels
*chan
,
3222 struct p2p_channels
*cli_chan
)
3226 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3228 os_memset(cli_chan
, 0, sizeof(*cli_chan
));
3230 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for 2.4 GHz "
3233 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3234 chan
->reg_class
[cla
].reg_class
= 81;
3235 chan
->reg_class
[cla
].channels
= 0;
3236 for (i
= 0; i
< 11; i
++) {
3237 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 2412 + i
* 5))
3238 wpas_p2p_add_chan(&chan
->reg_class
[cla
], i
+ 1);
3240 if (chan
->reg_class
[cla
].channels
)
3243 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for lower 5 GHz "
3246 /* Operating class 115 - 5 GHz, channels 36-48 */
3247 chan
->reg_class
[cla
].reg_class
= 115;
3248 chan
->reg_class
[cla
].channels
= 0;
3249 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 36 * 5))
3250 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 36);
3251 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 40 * 5))
3252 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 40);
3253 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 44 * 5))
3254 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 44);
3255 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 48 * 5))
3256 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 48);
3257 if (chan
->reg_class
[cla
].channels
)
3260 wpa_printf(MSG_DEBUG
, "P2P: Enable operating classes for higher 5 GHz "
3263 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3264 chan
->reg_class
[cla
].reg_class
= 124;
3265 chan
->reg_class
[cla
].channels
= 0;
3266 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 149 * 5))
3267 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 149);
3268 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 153 * 5))
3269 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 153);
3270 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 156 * 5))
3271 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 157);
3272 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, 5000 + 161 * 5))
3273 wpas_p2p_add_chan(&chan
->reg_class
[cla
], 161);
3274 if (chan
->reg_class
[cla
].channels
)
3277 chan
->reg_classes
= cla
;
3282 static struct hostapd_hw_modes
* get_mode(struct hostapd_hw_modes
*modes
,
3284 enum hostapd_hw_mode mode
)
3288 for (i
= 0; i
< num_modes
; i
++) {
3289 if (modes
[i
].mode
== mode
)
3298 NOT_ALLOWED
, NO_IR
, ALLOWED
3301 static int has_channel(struct wpa_global
*global
,
3302 struct hostapd_hw_modes
*mode
, u8 chan
, int *flags
)
3307 freq
= (mode
->mode
== HOSTAPD_MODE_IEEE80211A
? 5000 : 2407) +
3309 if (wpas_p2p_disallowed_freq(global
, freq
))
3312 for (i
= 0; i
< mode
->num_channels
; i
++) {
3313 if (mode
->channels
[i
].chan
== chan
) {
3315 *flags
= mode
->channels
[i
].flag
;
3316 if (mode
->channels
[i
].flag
&
3317 (HOSTAPD_CHAN_DISABLED
|
3318 HOSTAPD_CHAN_RADAR
))
3320 if (mode
->channels
[i
].flag
& HOSTAPD_CHAN_NO_IR
)
3330 struct p2p_oper_class_map
{
3331 enum hostapd_hw_mode mode
;
3336 enum { BW20
, BW40PLUS
, BW40MINUS
, BW80
, BW2160
, BW160
, BW80P80
} bw
;
3339 static const struct p2p_oper_class_map op_class
[] = {
3340 { HOSTAPD_MODE_IEEE80211G
, 81, 1, 13, 1, BW20
},
3341 #if 0 /* Do not enable HT40 on 2 GHz for now */
3342 { HOSTAPD_MODE_IEEE80211G
, 83, 1, 9, 1, BW40PLUS
},
3343 { HOSTAPD_MODE_IEEE80211G
, 84, 5, 13, 1, BW40MINUS
},
3345 { HOSTAPD_MODE_IEEE80211A
, 115, 36, 48, 4, BW20
},
3346 { HOSTAPD_MODE_IEEE80211A
, 124, 149, 161, 4, BW20
},
3347 { HOSTAPD_MODE_IEEE80211A
, 125, 149, 169, 4, BW20
},
3348 { HOSTAPD_MODE_IEEE80211A
, 116, 36, 44, 8, BW40PLUS
},
3349 { HOSTAPD_MODE_IEEE80211A
, 117, 40, 48, 8, BW40MINUS
},
3350 { HOSTAPD_MODE_IEEE80211A
, 126, 149, 157, 8, BW40PLUS
},
3351 { HOSTAPD_MODE_IEEE80211A
, 127, 153, 161, 8, BW40MINUS
},
3354 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3355 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3356 * 80 MHz, but currently use the following definition for simplicity
3357 * (these center frequencies are not actual channels, which makes
3358 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3359 * removing invalid channels.
3361 { HOSTAPD_MODE_IEEE80211A
, 128, 36, 161, 4, BW80
},
3362 { HOSTAPD_MODE_IEEE80211A
, 130, 36, 161, 4, BW80P80
},
3363 { HOSTAPD_MODE_IEEE80211A
, 129, 50, 114, 16, BW160
},
3364 { HOSTAPD_MODE_IEEE80211AD
, 180, 1, 4, 1, BW2160
},
3365 { -1, 0, 0, 0, 0, BW20
}
3369 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant
*wpa_s
,
3370 struct hostapd_hw_modes
*mode
,
3373 u8 center_channels
[] = { 42, 58, 106, 122, 138, 155 };
3376 if (mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
3379 for (i
= 0; i
< ARRAY_SIZE(center_channels
); i
++)
3381 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3382 * so the center channel is 6 channels away from the start/end.
3384 if (channel
>= center_channels
[i
] - 6 &&
3385 channel
<= center_channels
[i
] + 6)
3386 return center_channels
[i
];
3392 static enum chan_allowed
wpas_p2p_verify_80mhz(struct wpa_supplicant
*wpa_s
,
3393 struct hostapd_hw_modes
*mode
,
3398 enum chan_allowed res
, ret
= ALLOWED
;
3400 center_chan
= wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3403 if (center_chan
>= 58 && center_chan
<= 138)
3404 return NOT_ALLOWED
; /* Do not allow DFS channels for P2P */
3406 /* check all the channels are available */
3407 for (i
= 0; i
< 4; i
++) {
3408 int adj_chan
= center_chan
- 6 + i
* 4;
3410 res
= has_channel(wpa_s
->global
, mode
, adj_chan
, &flags
);
3411 if (res
== NOT_ALLOWED
)
3416 if (i
== 0 && !(flags
& HOSTAPD_CHAN_VHT_10_70
))
3418 if (i
== 1 && !(flags
& HOSTAPD_CHAN_VHT_30_50
))
3420 if (i
== 2 && !(flags
& HOSTAPD_CHAN_VHT_50_30
))
3422 if (i
== 3 && !(flags
& HOSTAPD_CHAN_VHT_70_10
))
3430 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant
*wpa_s
,
3431 struct hostapd_hw_modes
*mode
,
3434 u8 center_channels
[] = { 50, 114 };
3437 if (mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
3440 for (i
= 0; i
< ARRAY_SIZE(center_channels
); i
++)
3442 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3443 * so the center channel is 14 channels away from the start/end.
3445 if (channel
>= center_channels
[i
] - 14 &&
3446 channel
<= center_channels
[i
] + 14)
3447 return center_channels
[i
];
3453 static enum chan_allowed
wpas_p2p_verify_160mhz(struct wpa_supplicant
*wpa_s
,
3454 struct hostapd_hw_modes
*mode
,
3459 enum chan_allowed res
, ret
= ALLOWED
;
3461 center_chan
= wpas_p2p_get_center_160mhz(wpa_s
, mode
, channel
);
3464 /* VHT 160 MHz uses DFS channels in most countries. */
3466 /* Check all the channels are available */
3467 for (i
= 0; i
< 8; i
++) {
3468 int adj_chan
= center_chan
- 14 + i
* 4;
3470 res
= has_channel(wpa_s
->global
, mode
, adj_chan
, &flags
);
3471 if (res
== NOT_ALLOWED
)
3477 if (i
== 0 && !(flags
& HOSTAPD_CHAN_VHT_10_150
))
3479 if (i
== 1 && !(flags
& HOSTAPD_CHAN_VHT_30_130
))
3481 if (i
== 2 && !(flags
& HOSTAPD_CHAN_VHT_50_110
))
3483 if (i
== 3 && !(flags
& HOSTAPD_CHAN_VHT_70_90
))
3485 if (i
== 4 && !(flags
& HOSTAPD_CHAN_VHT_90_70
))
3487 if (i
== 5 && !(flags
& HOSTAPD_CHAN_VHT_110_50
))
3489 if (i
== 6 && !(flags
& HOSTAPD_CHAN_VHT_130_30
))
3491 if (i
== 7 && !(flags
& HOSTAPD_CHAN_VHT_150_10
))
3499 static enum chan_allowed
wpas_p2p_verify_channel(struct wpa_supplicant
*wpa_s
,
3500 struct hostapd_hw_modes
*mode
,
3504 enum chan_allowed res
, res2
;
3506 res2
= res
= has_channel(wpa_s
->global
, mode
, channel
, &flag
);
3507 if (bw
== BW40MINUS
) {
3508 if (!(flag
& HOSTAPD_CHAN_HT40MINUS
))
3510 res2
= has_channel(wpa_s
->global
, mode
, channel
- 4, NULL
);
3511 } else if (bw
== BW40PLUS
) {
3512 if (!(flag
& HOSTAPD_CHAN_HT40PLUS
))
3514 res2
= has_channel(wpa_s
->global
, mode
, channel
+ 4, NULL
);
3515 } else if (bw
== BW80
) {
3516 res2
= wpas_p2p_verify_80mhz(wpa_s
, mode
, channel
, bw
);
3517 } else if (bw
== BW160
) {
3518 res2
= wpas_p2p_verify_160mhz(wpa_s
, mode
, channel
, bw
);
3521 if (res
== NOT_ALLOWED
|| res2
== NOT_ALLOWED
)
3523 if (res
== NO_IR
|| res2
== NO_IR
)
3529 static int wpas_p2p_setup_channels(struct wpa_supplicant
*wpa_s
,
3530 struct p2p_channels
*chan
,
3531 struct p2p_channels
*cli_chan
)
3533 struct hostapd_hw_modes
*mode
;
3534 int cla
, op
, cli_cla
;
3536 if (wpa_s
->hw
.modes
== NULL
) {
3537 wpa_printf(MSG_DEBUG
, "P2P: Driver did not support fetching "
3538 "of all supported channels; assume dualband "
3540 return wpas_p2p_default_channels(wpa_s
, chan
, cli_chan
);
3545 for (op
= 0; op_class
[op
].op_class
; op
++) {
3546 const struct p2p_oper_class_map
*o
= &op_class
[op
];
3548 struct p2p_reg_class
*reg
= NULL
, *cli_reg
= NULL
;
3550 mode
= get_mode(wpa_s
->hw
.modes
, wpa_s
->hw
.num_modes
, o
->mode
);
3553 if (mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
3554 wpa_s
->global
->p2p_24ghz_social_channels
= 1;
3555 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3556 enum chan_allowed res
;
3557 res
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3558 if (res
== ALLOWED
) {
3560 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u",
3562 reg
= &chan
->reg_class
[cla
];
3564 reg
->reg_class
= o
->op_class
;
3566 reg
->channel
[reg
->channels
] = ch
;
3568 } else if (res
== NO_IR
&&
3569 wpa_s
->conf
->p2p_add_cli_chan
) {
3570 if (cli_reg
== NULL
) {
3571 wpa_printf(MSG_DEBUG
, "P2P: Add operating class %u (client only)",
3573 cli_reg
= &cli_chan
->reg_class
[cli_cla
];
3575 cli_reg
->reg_class
= o
->op_class
;
3577 cli_reg
->channel
[cli_reg
->channels
] = ch
;
3578 cli_reg
->channels
++;
3582 wpa_hexdump(MSG_DEBUG
, "P2P: Channels",
3583 reg
->channel
, reg
->channels
);
3586 wpa_hexdump(MSG_DEBUG
, "P2P: Channels (client only)",
3587 cli_reg
->channel
, cli_reg
->channels
);
3591 chan
->reg_classes
= cla
;
3592 cli_chan
->reg_classes
= cli_cla
;
3598 int wpas_p2p_get_ht40_mode(struct wpa_supplicant
*wpa_s
,
3599 struct hostapd_hw_modes
*mode
, u8 channel
)
3602 enum chan_allowed ret
;
3604 for (op
= 0; op_class
[op
].op_class
; op
++) {
3605 const struct p2p_oper_class_map
*o
= &op_class
[op
];
3608 for (ch
= o
->min_chan
; ch
<= o
->max_chan
; ch
+= o
->inc
) {
3609 if (o
->mode
!= HOSTAPD_MODE_IEEE80211A
||
3610 (o
->bw
!= BW40PLUS
&& o
->bw
!= BW40MINUS
) ||
3613 ret
= wpas_p2p_verify_channel(wpa_s
, mode
, ch
, o
->bw
);
3615 return (o
->bw
== BW40MINUS
) ? -1 : 1;
3622 int wpas_p2p_get_vht80_center(struct wpa_supplicant
*wpa_s
,
3623 struct hostapd_hw_modes
*mode
, u8 channel
)
3625 if (!wpas_p2p_verify_channel(wpa_s
, mode
, channel
, BW80
))
3628 return wpas_p2p_get_center_80mhz(wpa_s
, mode
, channel
);
3632 int wpas_p2p_get_vht160_center(struct wpa_supplicant
*wpa_s
,
3633 struct hostapd_hw_modes
*mode
, u8 channel
)
3635 if (!wpas_p2p_verify_channel(wpa_s
, mode
, channel
, BW160
))
3637 return wpas_p2p_get_center_160mhz(wpa_s
, mode
, channel
);
3641 static int wpas_get_noa(void *ctx
, const u8
*interface_addr
, u8
*buf
,
3644 struct wpa_supplicant
*wpa_s
= ctx
;
3646 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3647 if (os_memcmp(wpa_s
->own_addr
, interface_addr
, ETH_ALEN
) == 0)
3653 return wpa_drv_get_noa(wpa_s
, buf
, buf_len
);
3657 struct wpa_supplicant
* wpas_get_p2p_go_iface(struct wpa_supplicant
*wpa_s
,
3658 const u8
*ssid
, size_t ssid_len
)
3660 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3661 struct wpa_ssid
*s
= wpa_s
->current_ssid
;
3664 if (s
->mode
!= WPAS_MODE_P2P_GO
&&
3665 s
->mode
!= WPAS_MODE_AP
&&
3666 s
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
3668 if (s
->ssid_len
!= ssid_len
||
3669 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0)
3679 struct wpa_supplicant
* wpas_get_p2p_client_iface(struct wpa_supplicant
*wpa_s
,
3680 const u8
*peer_dev_addr
)
3682 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3683 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
3684 if (ssid
&& (ssid
->mode
!= WPAS_MODE_INFRA
|| !ssid
->p2p_group
))
3686 if (os_memcmp(wpa_s
->go_dev_addr
, peer_dev_addr
, ETH_ALEN
) == 0)
3694 static int wpas_go_connected(void *ctx
, const u8
*dev_addr
)
3696 struct wpa_supplicant
*wpa_s
= ctx
;
3698 return wpas_get_p2p_client_iface(wpa_s
, dev_addr
) != NULL
;
3702 static int wpas_is_concurrent_session_active(void *ctx
)
3704 struct wpa_supplicant
*wpa_s
= ctx
;
3705 struct wpa_supplicant
*ifs
;
3707 for (ifs
= wpa_s
->global
->ifaces
; ifs
; ifs
= ifs
->next
) {
3710 if (ifs
->wpa_state
> WPA_ASSOCIATED
)
3717 static void wpas_p2p_debug_print(void *ctx
, int level
, const char *msg
)
3719 struct wpa_supplicant
*wpa_s
= ctx
;
3720 wpa_msg_global(wpa_s
, level
, "P2P: %s", msg
);
3724 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant
*wpa_s
,
3725 const char *conf_p2p_dev
)
3727 struct wpa_interface iface
;
3728 struct wpa_supplicant
*p2pdev_wpa_s
;
3730 char force_name
[100];
3733 ret
= os_snprintf(ifname
, sizeof(ifname
), P2P_MGMT_DEVICE_PREFIX
"%s",
3735 if (os_snprintf_error(sizeof(ifname
), ret
))
3737 force_name
[0] = '\0';
3738 wpa_s
->pending_interface_type
= WPA_IF_P2P_DEVICE
;
3739 ret
= wpa_drv_if_add(wpa_s
, WPA_IF_P2P_DEVICE
, ifname
, NULL
, NULL
,
3740 force_name
, wpa_s
->pending_interface_addr
, NULL
);
3742 wpa_printf(MSG_DEBUG
, "P2P: Failed to create P2P Device interface");
3745 os_strlcpy(wpa_s
->pending_interface_name
, ifname
,
3746 sizeof(wpa_s
->pending_interface_name
));
3748 os_memset(&iface
, 0, sizeof(iface
));
3750 iface
.ifname
= wpa_s
->pending_interface_name
;
3751 iface
.driver
= wpa_s
->driver
->name
;
3752 iface
.driver_param
= wpa_s
->conf
->driver_param
;
3755 * If a P2P Device configuration file was given, use it as the interface
3756 * configuration file (instead of using parent's configuration file.
3759 iface
.confname
= conf_p2p_dev
;
3760 iface
.ctrl_interface
= NULL
;
3762 iface
.confname
= wpa_s
->confname
;
3763 iface
.ctrl_interface
= wpa_s
->conf
->ctrl_interface
;
3766 p2pdev_wpa_s
= wpa_supplicant_add_iface(wpa_s
->global
, &iface
, wpa_s
);
3767 if (!p2pdev_wpa_s
) {
3768 wpa_printf(MSG_DEBUG
, "P2P: Failed to add P2P Device interface");
3772 wpa_s
->pending_interface_name
[0] = '\0';
3777 static void wpas_presence_resp(void *ctx
, const u8
*src
, u8 status
,
3778 const u8
*noa
, size_t noa_len
)
3780 struct wpa_supplicant
*wpa_s
, *intf
= ctx
;
3783 for (wpa_s
= intf
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3784 if (wpa_s
->waiting_presence_resp
)
3788 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No group interface was waiting for presence response");
3791 wpa_s
->waiting_presence_resp
= 0;
3793 wpa_snprintf_hex(hex
, sizeof(hex
), noa
, noa_len
);
3794 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_PRESENCE_RESPONSE
"src=" MACSTR
3795 " status=%u noa=%s", MAC2STR(src
), status
, hex
);
3799 static int wpas_get_persistent_group(void *ctx
, const u8
*addr
, const u8
*ssid
,
3800 size_t ssid_len
, u8
*go_dev_addr
,
3801 u8
*ret_ssid
, size_t *ret_ssid_len
,
3802 u8
*intended_iface_addr
)
3804 struct wpa_supplicant
*wpa_s
= ctx
;
3807 s
= wpas_p2p_get_persistent(wpa_s
, addr
, ssid
, ssid_len
);
3809 os_memcpy(ret_ssid
, s
->ssid
, s
->ssid_len
);
3810 *ret_ssid_len
= s
->ssid_len
;
3811 os_memcpy(go_dev_addr
, s
->bssid
, ETH_ALEN
);
3813 if (s
->mode
!= WPAS_MODE_P2P_GO
) {
3814 os_memset(intended_iface_addr
, 0, ETH_ALEN
);
3815 } else if (wpas_p2p_create_iface(wpa_s
)) {
3816 if (wpas_p2p_add_group_interface(wpa_s
, WPA_IF_P2P_GO
))
3819 os_memcpy(intended_iface_addr
,
3820 wpa_s
->pending_interface_addr
, ETH_ALEN
);
3822 os_memcpy(intended_iface_addr
, wpa_s
->own_addr
,
3832 static int wpas_get_go_info(void *ctx
, u8
*intended_addr
,
3833 u8
*ssid
, size_t *ssid_len
, int *group_iface
,
3836 struct wpa_supplicant
*wpa_s
= ctx
;
3837 struct wpa_supplicant
*go
;
3841 * group_iface will be set to 1 only if a dedicated interface for P2P
3842 * role is required. First, we try to reuse an active GO. However,
3843 * if it is not present, we will try to reactivate an existing
3844 * persistent group and set group_iface to 1, so the caller will know
3845 * that the pending interface should be used.
3852 go
= wpas_p2p_get_go_group(wpa_s
);
3854 s
= wpas_p2p_get_persistent_go(wpa_s
);
3855 *group_iface
= wpas_p2p_create_iface(wpa_s
);
3857 os_memcpy(intended_addr
, s
->bssid
, ETH_ALEN
);
3861 s
= go
->current_ssid
;
3862 os_memcpy(intended_addr
, go
->own_addr
, ETH_ALEN
);
3864 *freq
= go
->assoc_freq
;
3867 os_memcpy(ssid
, s
->ssid
, s
->ssid_len
);
3868 *ssid_len
= s
->ssid_len
;
3874 static int wpas_remove_stale_groups(void *ctx
, const u8
*peer
, const u8
*go
,
3875 const u8
*ssid
, size_t ssid_len
)
3877 struct wpa_supplicant
*wpa_s
= ctx
;
3879 int save_config
= 0;
3882 /* Start with our first choice of Persistent Groups */
3883 while ((s
= wpas_p2p_get_persistent(wpa_s
, peer
, NULL
, 0))) {
3884 if (go
&& ssid
&& ssid_len
&&
3885 s
->ssid_len
== ssid_len
&&
3886 os_memcmp(go
, s
->bssid
, ETH_ALEN
) == 0 &&
3887 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
3890 /* Remove stale persistent group */
3891 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->num_p2p_clients
<= 1) {
3892 wpa_config_remove_network(wpa_s
->conf
, s
->id
);
3897 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
3898 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
3899 peer
, ETH_ALEN
) != 0)
3902 os_memmove(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
3903 s
->p2p_client_list
+ (i
+ 1) * 2 * ETH_ALEN
,
3904 (s
->num_p2p_clients
- i
- 1) * 2 * ETH_ALEN
);
3907 s
->num_p2p_clients
--;
3912 p2p_config_write(wpa_s
);
3914 /* Return TRUE if valid SSID remains */
3919 static void wpas_p2ps_get_feat_cap_str(char *buf
, size_t buf_len
,
3920 const u8
*feat_cap
, size_t feat_cap_len
)
3922 static const char pref
[] = " feature_cap=";
3928 * We expect a feature capability to contain at least one byte to be
3929 * reported. The string buffer provided by the caller function is
3930 * expected to be big enough to contain all bytes of the attribute for
3931 * known specifications. This function truncates the reported bytes if
3932 * the feature capability data exceeds the string buffer size.
3934 if (!feat_cap
|| !feat_cap_len
|| buf_len
< sizeof(pref
) + 2)
3937 os_memcpy(buf
, pref
, sizeof(pref
));
3938 ret
= wpa_snprintf_hex(&buf
[sizeof(pref
) - 1],
3939 buf_len
- sizeof(pref
) + 1,
3940 feat_cap
, feat_cap_len
);
3942 if (ret
!= (2 * (int) feat_cap_len
))
3943 wpa_printf(MSG_WARNING
, "P2PS feature_cap bytes truncated");
3947 static void wpas_p2ps_prov_complete(void *ctx
, u8 status
, const u8
*dev
,
3948 const u8
*adv_mac
, const u8
*ses_mac
,
3949 const u8
*grp_mac
, u32 adv_id
, u32 ses_id
,
3950 u8 conncap
, int passwd_id
,
3951 const u8
*persist_ssid
,
3952 size_t persist_ssid_size
, int response_done
,
3953 int prov_start
, const char *session_info
,
3954 const u8
*feat_cap
, size_t feat_cap_len
,
3956 const u8
*group_ssid
, size_t group_ssid_len
)
3958 struct wpa_supplicant
*wpa_s
= ctx
;
3960 struct wpa_ssid
*persistent_go
, *stale
, *s
= NULL
;
3961 int save_config
= 0;
3962 struct wpa_supplicant
*go_wpa_s
;
3963 char feat_cap_str
[256];
3968 os_memset(mac
, 0, ETH_ALEN
);
3976 wpas_p2ps_get_feat_cap_str(feat_cap_str
, sizeof(feat_cap_str
),
3977 feat_cap
, feat_cap_len
);
3980 if (session_info
== NULL
) {
3981 wpa_msg_global(wpa_s
, MSG_INFO
,
3982 P2P_EVENT_P2PS_PROVISION_START MACSTR
3983 " adv_id=%x conncap=%x"
3985 " session=%x mac=" MACSTR
3986 " dev_passwd_id=%d%s",
3987 MAC2STR(dev
), adv_id
, conncap
,
3989 ses_id
, MAC2STR(ses_mac
),
3990 passwd_id
, feat_cap_str
);
3992 wpa_msg_global(wpa_s
, MSG_INFO
,
3993 P2P_EVENT_P2PS_PROVISION_START MACSTR
3994 " adv_id=%x conncap=%x"
3996 " session=%x mac=" MACSTR
3997 " dev_passwd_id=%d info='%s'%s",
3998 MAC2STR(dev
), adv_id
, conncap
,
4000 ses_id
, MAC2STR(ses_mac
),
4001 passwd_id
, session_info
, feat_cap_str
);
4006 go_wpa_s
= wpas_p2p_get_go_group(wpa_s
);
4007 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
4009 if (status
&& status
!= P2P_SC_SUCCESS_DEFERRED
) {
4010 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
4011 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
4013 if (persistent_go
&& !persistent_go
->num_p2p_clients
) {
4014 /* remove empty persistent GO */
4015 wpa_config_remove_network(wpa_s
->conf
,
4019 wpa_msg_global(wpa_s
, MSG_INFO
,
4020 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4022 " adv_id=%x adv_mac=" MACSTR
4023 " session=%x mac=" MACSTR
"%s",
4024 MAC2STR(dev
), status
,
4025 adv_id
, MAC2STR(adv_mac
),
4026 ses_id
, MAC2STR(ses_mac
), feat_cap_str
);
4030 /* Clean up stale persistent groups with this device */
4031 if (persist_ssid
&& persist_ssid_size
)
4032 s
= wpas_p2p_get_persistent(wpa_s
, dev
, persist_ssid
,
4035 if (persist_ssid
&& s
&& s
->mode
!= WPAS_MODE_P2P_GO
&&
4036 is_zero_ether_addr(grp_mac
)) {
4037 wpa_dbg(wpa_s
, MSG_ERROR
,
4038 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4043 stale
= wpas_p2p_get_persistent(wpa_s
, dev
, NULL
, 0);
4047 if (s
&& s
->ssid_len
== stale
->ssid_len
&&
4048 os_memcmp(stale
->bssid
, s
->bssid
, ETH_ALEN
) == 0 &&
4049 os_memcmp(stale
->ssid
, s
->ssid
, s
->ssid_len
) == 0)
4052 /* Remove stale persistent group */
4053 if (stale
->mode
!= WPAS_MODE_P2P_GO
||
4054 stale
->num_p2p_clients
<= 1) {
4055 wpa_config_remove_network(wpa_s
->conf
, stale
->id
);
4059 for (i
= 0; i
< stale
->num_p2p_clients
; i
++) {
4060 if (os_memcmp(stale
->p2p_client_list
+
4062 dev
, ETH_ALEN
) == 0) {
4063 os_memmove(stale
->p2p_client_list
+
4065 stale
->p2p_client_list
+
4067 (stale
->num_p2p_clients
-
4072 stale
->num_p2p_clients
--;
4078 p2p_config_write(wpa_s
);
4081 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
4082 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
4084 if (persistent_go
&& s
!= persistent_go
&&
4085 !persistent_go
->num_p2p_clients
) {
4086 /* remove empty persistent GO */
4087 wpa_config_remove_network(wpa_s
->conf
,
4092 wpa_msg_global(wpa_s
, MSG_INFO
,
4093 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4095 " adv_id=%x adv_mac=" MACSTR
4096 " session=%x mac=" MACSTR
4098 MAC2STR(dev
), status
,
4099 adv_id
, MAC2STR(adv_mac
),
4100 ses_id
, MAC2STR(ses_mac
), s
->id
, feat_cap_str
);
4104 if (conncap
== P2PS_SETUP_GROUP_OWNER
) {
4106 * We need to copy the interface name. Simply saving a
4107 * pointer isn't enough, since if we use pending_interface_name
4108 * it will be overwritten when the group is added.
4110 char go_ifname
[100];
4112 go_ifname
[0] = '\0';
4114 wpa_s
->global
->pending_p2ps_group
= 1;
4115 wpa_s
->global
->pending_p2ps_group_freq
= freq
;
4117 if (!wpas_p2p_create_iface(wpa_s
))
4118 os_memcpy(go_ifname
, wpa_s
->ifname
,
4120 else if (wpa_s
->pending_interface_name
[0])
4121 os_memcpy(go_ifname
,
4122 wpa_s
->pending_interface_name
,
4125 if (!go_ifname
[0]) {
4126 wpas_p2ps_prov_complete(
4127 wpa_s
, P2P_SC_FAIL_UNKNOWN_GROUP
,
4128 dev
, adv_mac
, ses_mac
,
4129 grp_mac
, adv_id
, ses_id
, 0, 0,
4130 NULL
, 0, 0, 0, NULL
, NULL
, 0, 0,
4135 /* If PD Resp complete, start up the GO */
4136 if (response_done
&& persistent_go
) {
4137 wpas_p2p_group_add_persistent(
4138 wpa_s
, persistent_go
,
4139 0, 0, freq
, 0, 0, 0, 0, NULL
,
4140 persistent_go
->mode
==
4142 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
:
4144 } else if (response_done
) {
4145 wpas_p2p_group_add(wpa_s
, 1, freq
, 0, 0, 0, 0);
4148 if (passwd_id
== DEV_PW_P2PS_DEFAULT
) {
4149 os_memcpy(wpa_s
->p2ps_join_addr
, grp_mac
,
4151 wpa_s
->p2ps_method_config_any
= 1;
4153 } else if (passwd_id
== DEV_PW_P2PS_DEFAULT
) {
4154 os_memcpy(go_ifname
, go_wpa_s
->ifname
,
4157 if (is_zero_ether_addr(grp_mac
)) {
4158 wpa_dbg(go_wpa_s
, MSG_DEBUG
,
4159 "P2P: Setting PIN-1 for ANY");
4160 wpa_supplicant_ap_wps_pin(go_wpa_s
, NULL
,
4161 "12345670", NULL
, 0,
4164 wpa_dbg(go_wpa_s
, MSG_DEBUG
,
4165 "P2P: Setting PIN-1 for " MACSTR
,
4167 wpa_supplicant_ap_wps_pin(go_wpa_s
, grp_mac
,
4168 "12345670", NULL
, 0,
4172 os_memcpy(wpa_s
->p2ps_join_addr
, grp_mac
, ETH_ALEN
);
4173 wpa_s
->p2ps_method_config_any
= 1;
4176 wpa_msg_global(wpa_s
, MSG_INFO
,
4177 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4178 " status=%d conncap=%x"
4179 " adv_id=%x adv_mac=" MACSTR
4180 " session=%x mac=" MACSTR
4181 " dev_passwd_id=%d go=%s%s",
4182 MAC2STR(dev
), status
, conncap
,
4183 adv_id
, MAC2STR(adv_mac
),
4184 ses_id
, MAC2STR(ses_mac
),
4185 passwd_id
, go_ifname
, feat_cap_str
);
4189 if (go_wpa_s
&& !p2p_group_go_member_count(wpa_s
))
4190 wpas_p2p_group_remove(wpa_s
, go_wpa_s
->ifname
);
4192 if (persistent_go
&& !persistent_go
->num_p2p_clients
) {
4193 /* remove empty persistent GO */
4194 wpa_config_remove_network(wpa_s
->conf
, persistent_go
->id
);
4197 if (conncap
== P2PS_SETUP_CLIENT
) {
4198 char ssid_hex
[32 * 2 + 1];
4201 wpa_snprintf_hex(ssid_hex
, sizeof(ssid_hex
),
4202 group_ssid
, group_ssid_len
);
4205 wpa_msg_global(wpa_s
, MSG_INFO
,
4206 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4207 " status=%d conncap=%x"
4208 " adv_id=%x adv_mac=" MACSTR
4209 " session=%x mac=" MACSTR
4210 " dev_passwd_id=%d join=" MACSTR
"%s%s%s",
4211 MAC2STR(dev
), status
, conncap
,
4212 adv_id
, MAC2STR(adv_mac
),
4213 ses_id
, MAC2STR(ses_mac
),
4214 passwd_id
, MAC2STR(grp_mac
), feat_cap_str
,
4215 group_ssid
? " group_ssid=" : "", ssid_hex
);
4217 wpa_msg_global(wpa_s
, MSG_INFO
,
4218 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4219 " status=%d conncap=%x"
4220 " adv_id=%x adv_mac=" MACSTR
4221 " session=%x mac=" MACSTR
4222 " dev_passwd_id=%d%s",
4223 MAC2STR(dev
), status
, conncap
,
4224 adv_id
, MAC2STR(adv_mac
),
4225 ses_id
, MAC2STR(ses_mac
),
4226 passwd_id
, feat_cap_str
);
4231 static int _wpas_p2p_in_progress(void *ctx
)
4233 struct wpa_supplicant
*wpa_s
= ctx
;
4234 return wpas_p2p_in_progress(wpa_s
);
4238 static int wpas_prov_disc_resp_cb(void *ctx
)
4240 struct wpa_supplicant
*wpa_s
= ctx
;
4241 struct wpa_ssid
*persistent_go
;
4244 if (!wpa_s
->global
->pending_p2ps_group
)
4247 freq
= wpa_s
->global
->pending_p2ps_group_freq
;
4248 wpa_s
->global
->pending_p2ps_group_freq
= 0;
4249 wpa_s
->global
->pending_p2ps_group
= 0;
4251 if (wpas_p2p_get_go_group(wpa_s
))
4253 persistent_go
= wpas_p2p_get_persistent_go(wpa_s
);
4255 if (persistent_go
) {
4256 wpas_p2p_group_add_persistent(
4257 wpa_s
, persistent_go
, 0, 0, 0, 0, 0, 0, 0, NULL
,
4258 persistent_go
->mode
== WPAS_MODE_P2P_GO
?
4259 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
: 0, 0);
4261 wpas_p2p_group_add(wpa_s
, 1, freq
, 0, 0, 0, 0);
4268 static int wpas_p2p_get_pref_freq_list(void *ctx
, int go
,
4270 unsigned int *freq_list
)
4272 struct wpa_supplicant
*wpa_s
= ctx
;
4274 return wpa_drv_get_pref_freq_list(wpa_s
, go
? WPA_IF_P2P_GO
:
4275 WPA_IF_P2P_CLIENT
, len
, freq_list
);
4280 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4281 * @global: Pointer to global data from wpa_supplicant_init()
4282 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4283 * Returns: 0 on success, -1 on failure
4285 int wpas_p2p_init(struct wpa_global
*global
, struct wpa_supplicant
*wpa_s
)
4287 struct p2p_config p2p
;
4290 if (wpa_s
->conf
->p2p_disabled
)
4293 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
4299 os_memset(&p2p
, 0, sizeof(p2p
));
4301 p2p
.debug_print
= wpas_p2p_debug_print
;
4302 p2p
.p2p_scan
= wpas_p2p_scan
;
4303 p2p
.send_action
= wpas_send_action
;
4304 p2p
.send_action_done
= wpas_send_action_done
;
4305 p2p
.go_neg_completed
= wpas_go_neg_completed
;
4306 p2p
.go_neg_req_rx
= wpas_go_neg_req_rx
;
4307 p2p
.dev_found
= wpas_dev_found
;
4308 p2p
.dev_lost
= wpas_dev_lost
;
4309 p2p
.find_stopped
= wpas_find_stopped
;
4310 p2p
.start_listen
= wpas_start_listen
;
4311 p2p
.stop_listen
= wpas_stop_listen
;
4312 p2p
.send_probe_resp
= wpas_send_probe_resp
;
4313 p2p
.sd_request
= wpas_sd_request
;
4314 p2p
.sd_response
= wpas_sd_response
;
4315 p2p
.prov_disc_req
= wpas_prov_disc_req
;
4316 p2p
.prov_disc_resp
= wpas_prov_disc_resp
;
4317 p2p
.prov_disc_fail
= wpas_prov_disc_fail
;
4318 p2p
.invitation_process
= wpas_invitation_process
;
4319 p2p
.invitation_received
= wpas_invitation_received
;
4320 p2p
.invitation_result
= wpas_invitation_result
;
4321 p2p
.get_noa
= wpas_get_noa
;
4322 p2p
.go_connected
= wpas_go_connected
;
4323 p2p
.presence_resp
= wpas_presence_resp
;
4324 p2p
.is_concurrent_session_active
= wpas_is_concurrent_session_active
;
4325 p2p
.is_p2p_in_progress
= _wpas_p2p_in_progress
;
4326 p2p
.get_persistent_group
= wpas_get_persistent_group
;
4327 p2p
.get_go_info
= wpas_get_go_info
;
4328 p2p
.remove_stale_groups
= wpas_remove_stale_groups
;
4329 p2p
.p2ps_prov_complete
= wpas_p2ps_prov_complete
;
4330 p2p
.prov_disc_resp_cb
= wpas_prov_disc_resp_cb
;
4331 p2p
.p2ps_group_capability
= p2ps_group_capability
;
4332 p2p
.get_pref_freq_list
= wpas_p2p_get_pref_freq_list
;
4334 os_memcpy(wpa_s
->global
->p2p_dev_addr
, wpa_s
->own_addr
, ETH_ALEN
);
4335 os_memcpy(p2p
.dev_addr
, wpa_s
->global
->p2p_dev_addr
, ETH_ALEN
);
4336 p2p
.dev_name
= wpa_s
->conf
->device_name
;
4337 p2p
.manufacturer
= wpa_s
->conf
->manufacturer
;
4338 p2p
.model_name
= wpa_s
->conf
->model_name
;
4339 p2p
.model_number
= wpa_s
->conf
->model_number
;
4340 p2p
.serial_number
= wpa_s
->conf
->serial_number
;
4342 os_memcpy(p2p
.uuid
, wpa_s
->wps
->uuid
, 16);
4343 p2p
.config_methods
= wpa_s
->wps
->config_methods
;
4346 if (wpas_p2p_setup_channels(wpa_s
, &p2p
.channels
, &p2p
.cli_channels
)) {
4347 wpa_printf(MSG_ERROR
,
4348 "P2P: Failed to configure supported channel list");
4352 if (wpa_s
->conf
->p2p_listen_reg_class
&&
4353 wpa_s
->conf
->p2p_listen_channel
) {
4354 p2p
.reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
4355 p2p
.channel
= wpa_s
->conf
->p2p_listen_channel
;
4356 p2p
.channel_forced
= 1;
4359 * Pick one of the social channels randomly as the listen
4362 if (p2p_config_get_random_social(&p2p
, &p2p
.reg_class
,
4363 &p2p
.channel
) != 0) {
4364 wpa_printf(MSG_INFO
,
4365 "P2P: No social channels supported by the driver - do not enable P2P");
4368 p2p
.channel_forced
= 0;
4370 wpa_printf(MSG_DEBUG
, "P2P: Own listen channel: %d:%d",
4371 p2p
.reg_class
, p2p
.channel
);
4373 if (wpa_s
->conf
->p2p_oper_reg_class
&&
4374 wpa_s
->conf
->p2p_oper_channel
) {
4375 p2p
.op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
4376 p2p
.op_channel
= wpa_s
->conf
->p2p_oper_channel
;
4377 p2p
.cfg_op_channel
= 1;
4378 wpa_printf(MSG_DEBUG
, "P2P: Configured operating channel: "
4379 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4383 * Use random operation channel from 2.4 GHz band social
4384 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4385 * other preference is indicated.
4387 if (p2p_config_get_random_social(&p2p
, &p2p
.op_reg_class
,
4388 &p2p
.op_channel
) != 0) {
4389 wpa_printf(MSG_ERROR
,
4390 "P2P: Failed to select random social channel as operation channel");
4393 p2p
.cfg_op_channel
= 0;
4394 wpa_printf(MSG_DEBUG
, "P2P: Random operating channel: "
4395 "%d:%d", p2p
.op_reg_class
, p2p
.op_channel
);
4398 if (wpa_s
->conf
->p2p_pref_chan
&& wpa_s
->conf
->num_p2p_pref_chan
) {
4399 p2p
.pref_chan
= wpa_s
->conf
->p2p_pref_chan
;
4400 p2p
.num_pref_chan
= wpa_s
->conf
->num_p2p_pref_chan
;
4403 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
4404 os_memcpy(p2p
.country
, wpa_s
->conf
->country
, 2);
4405 p2p
.country
[2] = 0x04;
4407 os_memcpy(p2p
.country
, "XX\x04", 3);
4409 os_memcpy(p2p
.pri_dev_type
, wpa_s
->conf
->device_type
,
4412 p2p
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
4413 os_memcpy(p2p
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
4414 p2p
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
4416 p2p
.concurrent_operations
= !!(wpa_s
->drv_flags
&
4417 WPA_DRIVER_FLAGS_P2P_CONCURRENT
);
4419 p2p
.max_peers
= 100;
4421 if (wpa_s
->conf
->p2p_ssid_postfix
) {
4422 p2p
.ssid_postfix_len
=
4423 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
);
4424 if (p2p
.ssid_postfix_len
> sizeof(p2p
.ssid_postfix
))
4425 p2p
.ssid_postfix_len
= sizeof(p2p
.ssid_postfix
);
4426 os_memcpy(p2p
.ssid_postfix
, wpa_s
->conf
->p2p_ssid_postfix
,
4427 p2p
.ssid_postfix_len
);
4430 p2p
.p2p_intra_bss
= wpa_s
->conf
->p2p_intra_bss
;
4432 p2p
.max_listen
= wpa_s
->max_remain_on_chan
;
4434 if (wpa_s
->conf
->p2p_passphrase_len
>= 8 &&
4435 wpa_s
->conf
->p2p_passphrase_len
<= 63)
4436 p2p
.passphrase_len
= wpa_s
->conf
->p2p_passphrase_len
;
4438 p2p
.passphrase_len
= 8;
4440 global
->p2p
= p2p_init(&p2p
);
4441 if (global
->p2p
== NULL
)
4443 global
->p2p_init_wpa_s
= wpa_s
;
4445 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
4446 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
4448 p2p_add_wps_vendor_extension(
4449 global
->p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
4452 p2p_set_no_go_freq(global
->p2p
, &wpa_s
->conf
->p2p_no_go_freq
);
4459 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4460 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4462 * This function deinitialize per-interface P2P data.
4464 void wpas_p2p_deinit(struct wpa_supplicant
*wpa_s
)
4466 if (wpa_s
->driver
&& wpa_s
->drv_priv
)
4467 wpa_drv_probe_req_report(wpa_s
, 0);
4469 if (wpa_s
->go_params
) {
4470 /* Clear any stored provisioning info */
4471 p2p_clear_provisioning_info(
4473 wpa_s
->go_params
->peer_device_addr
);
4476 os_free(wpa_s
->go_params
);
4477 wpa_s
->go_params
= NULL
;
4478 eloop_cancel_timeout(wpas_p2p_psk_failure_removal
, wpa_s
, NULL
);
4479 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
4480 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4481 wpa_s
->p2p_long_listen
= 0;
4482 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
4483 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
4484 wpas_p2p_remove_pending_group_interface(wpa_s
);
4485 eloop_cancel_timeout(wpas_p2p_group_freq_conflict
, wpa_s
, NULL
);
4486 wpas_p2p_listen_work_done(wpa_s
);
4487 if (wpa_s
->p2p_send_action_work
) {
4488 os_free(wpa_s
->p2p_send_action_work
->ctx
);
4489 radio_work_done(wpa_s
->p2p_send_action_work
);
4490 wpa_s
->p2p_send_action_work
= NULL
;
4492 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
, wpa_s
, NULL
);
4494 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
4495 wpa_s
->p2p_oob_dev_pw
= NULL
;
4497 os_free(wpa_s
->p2p_group_common_freqs
);
4498 wpa_s
->p2p_group_common_freqs
= NULL
;
4499 wpa_s
->p2p_group_common_freqs_num
= 0;
4501 /* TODO: remove group interface from the driver if this wpa_s instance
4502 * is on top of a P2P group interface */
4507 * wpas_p2p_deinit_global - Deinitialize global P2P module
4508 * @global: Pointer to global data from wpa_supplicant_init()
4510 * This function deinitializes the global (per device) P2P module.
4512 static void wpas_p2p_deinit_global(struct wpa_global
*global
)
4514 struct wpa_supplicant
*wpa_s
, *tmp
;
4516 wpa_s
= global
->ifaces
;
4518 wpas_p2p_service_flush(global
->p2p_init_wpa_s
);
4520 /* Remove remaining P2P group interfaces */
4521 while (wpa_s
&& wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
)
4522 wpa_s
= wpa_s
->next
;
4524 tmp
= global
->ifaces
;
4527 tmp
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
)) {
4532 /* Disconnect from the P2P group and deinit the interface */
4533 wpas_p2p_disconnect(tmp
);
4537 * Deinit GO data on any possibly remaining interface (if main
4538 * interface is used as GO).
4540 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
4541 if (wpa_s
->ap_iface
)
4542 wpas_p2p_group_deinit(wpa_s
);
4545 p2p_deinit(global
->p2p
);
4547 global
->p2p_init_wpa_s
= NULL
;
4551 static int wpas_p2p_create_iface(struct wpa_supplicant
*wpa_s
)
4553 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
) &&
4554 wpa_s
->conf
->p2p_no_group_iface
)
4555 return 0; /* separate interface disabled per configuration */
4556 if (wpa_s
->drv_flags
&
4557 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
|
4558 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P
))
4559 return 1; /* P2P group requires a new interface in every case
4561 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CONCURRENT
))
4562 return 0; /* driver does not support concurrent operations */
4563 if (wpa_s
->global
->ifaces
->next
)
4564 return 1; /* more that one interface already in use */
4565 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
)
4566 return 1; /* this interface is already in use */
4571 static int wpas_p2p_start_go_neg(struct wpa_supplicant
*wpa_s
,
4572 const u8
*peer_addr
,
4573 enum p2p_wps_method wps_method
,
4574 int go_intent
, const u8
*own_interface_addr
,
4575 unsigned int force_freq
, int persistent_group
,
4576 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4578 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4579 persistent_group
= 2;
4582 * Increase GO config timeout if HT40 is used since it takes some time
4583 * to scan channels for coex purposes before the BSS can be started.
4585 p2p_set_config_timeout(wpa_s
->global
->p2p
,
4586 wpa_s
->p2p_go_ht40
? 255 : 100, 20);
4588 return p2p_connect(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4589 go_intent
, own_interface_addr
, force_freq
,
4590 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4591 ssid
? ssid
->ssid_len
: 0,
4592 wpa_s
->p2p_pd_before_go_neg
, pref_freq
,
4593 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4598 static int wpas_p2p_auth_go_neg(struct wpa_supplicant
*wpa_s
,
4599 const u8
*peer_addr
,
4600 enum p2p_wps_method wps_method
,
4601 int go_intent
, const u8
*own_interface_addr
,
4602 unsigned int force_freq
, int persistent_group
,
4603 struct wpa_ssid
*ssid
, unsigned int pref_freq
)
4605 if (persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
4606 persistent_group
= 2;
4608 return p2p_authorize(wpa_s
->global
->p2p
, peer_addr
, wps_method
,
4609 go_intent
, own_interface_addr
, force_freq
,
4610 persistent_group
, ssid
? ssid
->ssid
: NULL
,
4611 ssid
? ssid
->ssid_len
: 0, pref_freq
,
4612 wps_method
== WPS_NFC
? wpa_s
->p2p_oob_dev_pw_id
:
4617 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant
*wpa_s
)
4619 wpa_s
->p2p_join_scan_count
++;
4620 wpa_printf(MSG_DEBUG
, "P2P: Join scan attempt %d",
4621 wpa_s
->p2p_join_scan_count
);
4622 if (wpa_s
->p2p_join_scan_count
> P2P_MAX_JOIN_SCAN_ATTEMPTS
) {
4623 wpa_printf(MSG_DEBUG
, "P2P: Failed to find GO " MACSTR
4624 " for join operationg - stop join attempt",
4625 MAC2STR(wpa_s
->pending_join_iface_addr
));
4626 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4627 if (wpa_s
->p2p_auto_pd
) {
4628 wpa_s
->p2p_auto_pd
= 0;
4629 wpa_msg_global(wpa_s
, MSG_INFO
,
4630 P2P_EVENT_PROV_DISC_FAILURE
4631 " p2p_dev_addr=" MACSTR
" status=N/A",
4632 MAC2STR(wpa_s
->pending_join_dev_addr
));
4635 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4636 P2P_EVENT_GROUP_FORMATION_FAILURE
);
4637 wpas_notify_p2p_group_formation_failure(wpa_s
, "");
4642 static int wpas_check_freq_conflict(struct wpa_supplicant
*wpa_s
, int freq
)
4645 unsigned int num
, i
;
4646 struct wpa_used_freq_data
*freqs
;
4648 if (wpas_p2p_num_unused_channels(wpa_s
) > 0) {
4649 /* Multiple channels are supported and not all are in use */
4653 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
4654 sizeof(struct wpa_used_freq_data
));
4658 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
4659 wpa_s
->num_multichan_concurrent
);
4661 for (i
= 0; i
< num
; i
++) {
4662 if (freqs
[i
].freq
== freq
) {
4663 wpa_printf(MSG_DEBUG
, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4670 wpa_printf(MSG_DEBUG
, "P2P: No valid operating frequencies");
4679 static int wpas_p2p_peer_go(struct wpa_supplicant
*wpa_s
,
4680 const u8
*peer_dev_addr
)
4682 struct wpa_bss
*bss
;
4685 bss
= wpa_bss_get_p2p_dev_addr(wpa_s
, peer_dev_addr
);
4688 if (bss
->last_update_idx
< wpa_s
->bss_update_idx
) {
4689 wpa_printf(MSG_DEBUG
, "P2P: Peer BSS entry not updated in the "
4694 updated
= os_reltime_before(&wpa_s
->p2p_auto_started
,
4696 wpa_printf(MSG_DEBUG
, "P2P: Current BSS entry for peer updated at "
4697 "%ld.%06ld (%supdated in last scan)",
4698 bss
->last_update
.sec
, bss
->last_update
.usec
,
4699 updated
? "": "not ");
4705 static void wpas_p2p_scan_res_join(struct wpa_supplicant
*wpa_s
,
4706 struct wpa_scan_results
*scan_res
)
4708 struct wpa_bss
*bss
= NULL
;
4710 u8 iface_addr
[ETH_ALEN
];
4712 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4714 if (wpa_s
->global
->p2p_disabled
)
4717 wpa_printf(MSG_DEBUG
, "P2P: Scan results received (%d BSS) for %sjoin",
4718 scan_res
? (int) scan_res
->num
: -1,
4719 wpa_s
->p2p_auto_join
? "auto_" : "");
4722 wpas_p2p_scan_res_handler(wpa_s
, scan_res
);
4724 if (wpa_s
->p2p_auto_pd
) {
4725 int join
= wpas_p2p_peer_go(wpa_s
,
4726 wpa_s
->pending_join_dev_addr
);
4728 wpa_s
->auto_pd_scan_retry
< P2P_AUTO_PD_SCAN_ATTEMPTS
) {
4729 wpa_s
->auto_pd_scan_retry
++;
4730 bss
= wpa_bss_get_bssid_latest(
4731 wpa_s
, wpa_s
->pending_join_dev_addr
);
4734 wpa_printf(MSG_DEBUG
, "P2P: Scan retry %d for "
4735 "the peer " MACSTR
" at %d MHz",
4736 wpa_s
->auto_pd_scan_retry
,
4738 pending_join_dev_addr
),
4740 wpas_p2p_join_scan_req(wpa_s
, freq
, NULL
, 0);
4748 wpa_s
->p2p_auto_pd
= 0;
4749 wpa_s
->pending_pd_use
= join
? AUTO_PD_JOIN
: AUTO_PD_GO_NEG
;
4750 wpa_printf(MSG_DEBUG
, "P2P: Auto PD with " MACSTR
" join=%d",
4751 MAC2STR(wpa_s
->pending_join_dev_addr
), join
);
4752 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4753 wpa_s
->pending_join_dev_addr
, NULL
,
4754 wpa_s
->pending_pd_config_methods
, join
,
4755 0, wpa_s
->user_initiated_pd
) < 0) {
4756 wpa_s
->p2p_auto_pd
= 0;
4757 wpa_msg_global(wpa_s
, MSG_INFO
,
4758 P2P_EVENT_PROV_DISC_FAILURE
4759 " p2p_dev_addr=" MACSTR
" status=N/A",
4760 MAC2STR(wpa_s
->pending_join_dev_addr
));
4765 if (wpa_s
->p2p_auto_join
) {
4766 int join
= wpas_p2p_peer_go(wpa_s
,
4767 wpa_s
->pending_join_dev_addr
);
4769 wpa_printf(MSG_DEBUG
, "P2P: Peer was not found to be "
4770 "running a GO -> use GO Negotiation");
4771 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4772 P2P_EVENT_FALLBACK_TO_GO_NEG
4773 "reason=peer-not-running-GO");
4774 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
,
4775 wpa_s
->p2p_pin
, wpa_s
->p2p_wps_method
,
4776 wpa_s
->p2p_persistent_group
, 0, 0, 0,
4777 wpa_s
->p2p_go_intent
,
4778 wpa_s
->p2p_connect_freq
,
4779 wpa_s
->p2p_go_vht_center_freq2
,
4780 wpa_s
->p2p_persistent_id
,
4781 wpa_s
->p2p_pd_before_go_neg
,
4784 wpa_s
->p2p_go_max_oper_chwidth
,
4789 wpa_printf(MSG_DEBUG
, "P2P: Peer was found running GO%s -> "
4790 "try to join the group", join
? "" :
4793 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4794 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED
);
4795 wpa_s
->p2p_fallback_to_go_neg
= 1;
4799 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4800 wpa_s
->pending_join_iface_addr
);
4802 p2p_get_interface_addr(wpa_s
->global
->p2p
,
4803 wpa_s
->pending_join_dev_addr
,
4805 os_memcmp(iface_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
) != 0
4806 && !wpa_bss_get_bssid(wpa_s
, wpa_s
->pending_join_iface_addr
)) {
4807 wpa_printf(MSG_DEBUG
, "P2P: Overwrite pending interface "
4808 "address for join from " MACSTR
" to " MACSTR
4809 " based on newly discovered P2P peer entry",
4810 MAC2STR(wpa_s
->pending_join_iface_addr
),
4811 MAC2STR(iface_addr
));
4812 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
,
4815 freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4816 wpa_s
->pending_join_iface_addr
);
4819 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4820 "from P2P peer table: %d MHz", freq
);
4822 if (wpa_s
->p2p_join_ssid_len
) {
4823 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4824 MACSTR
" and SSID %s",
4825 MAC2STR(wpa_s
->pending_join_iface_addr
),
4826 wpa_ssid_txt(wpa_s
->p2p_join_ssid
,
4827 wpa_s
->p2p_join_ssid_len
));
4828 bss
= wpa_bss_get(wpa_s
, wpa_s
->pending_join_iface_addr
,
4829 wpa_s
->p2p_join_ssid
,
4830 wpa_s
->p2p_join_ssid_len
);
4832 wpa_printf(MSG_DEBUG
, "P2P: Trying to find target GO BSS entry based on BSSID "
4833 MACSTR
, MAC2STR(wpa_s
->pending_join_iface_addr
));
4834 bss
= wpa_bss_get_bssid_latest(wpa_s
,
4835 wpa_s
->pending_join_iface_addr
);
4838 u8 dev_addr
[ETH_ALEN
];
4841 wpa_printf(MSG_DEBUG
, "P2P: Target GO operating frequency "
4842 "from BSS table: %d MHz (SSID %s)", freq
,
4843 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
4844 if (p2p_parse_dev_addr((const u8
*) (bss
+ 1), bss
->ie_len
,
4846 os_memcmp(wpa_s
->pending_join_dev_addr
,
4847 wpa_s
->pending_join_iface_addr
, ETH_ALEN
) == 0 &&
4848 os_memcmp(dev_addr
, wpa_s
->pending_join_dev_addr
,
4850 wpa_printf(MSG_DEBUG
,
4851 "P2P: Update target GO device address based on BSS entry: " MACSTR
" (was " MACSTR
")",
4853 MAC2STR(wpa_s
->pending_join_dev_addr
));
4854 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
,
4861 if (wpas_check_freq_conflict(wpa_s
, freq
) > 0) {
4862 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
4863 P2P_EVENT_GROUP_FORMATION_FAILURE
4864 "reason=FREQ_CONFLICT");
4865 wpas_notify_p2p_group_formation_failure(
4866 wpa_s
, "FREQ_CONFLICT");
4870 wpa_printf(MSG_DEBUG
, "P2P: Send Provision Discovery Request "
4871 "prior to joining an existing group (GO " MACSTR
4873 MAC2STR(wpa_s
->pending_join_dev_addr
), freq
);
4874 wpa_s
->pending_pd_before_join
= 1;
4876 switch (wpa_s
->pending_join_wps_method
) {
4877 case WPS_PIN_DISPLAY
:
4878 method
= WPS_CONFIG_KEYPAD
;
4880 case WPS_PIN_KEYPAD
:
4881 method
= WPS_CONFIG_DISPLAY
;
4884 method
= WPS_CONFIG_PUSHBUTTON
;
4887 method
= WPS_CONFIG_P2PS
;
4894 if ((p2p_get_provisioning_info(wpa_s
->global
->p2p
,
4895 wpa_s
->pending_join_dev_addr
) ==
4898 * We have already performed provision discovery for
4899 * joining the group. Proceed directly to join
4900 * operation without duplicated provision discovery. */
4901 wpa_printf(MSG_DEBUG
, "P2P: Provision discovery "
4902 "with " MACSTR
" already done - proceed to "
4904 MAC2STR(wpa_s
->pending_join_dev_addr
));
4905 wpa_s
->pending_pd_before_join
= 0;
4909 if (p2p_prov_disc_req(wpa_s
->global
->p2p
,
4910 wpa_s
->pending_join_dev_addr
,
4912 freq
, wpa_s
->user_initiated_pd
) < 0) {
4913 wpa_printf(MSG_DEBUG
, "P2P: Failed to send Provision "
4914 "Discovery Request before joining an "
4916 wpa_s
->pending_pd_before_join
= 0;
4922 wpa_printf(MSG_DEBUG
, "P2P: Failed to find BSS/GO - try again later");
4923 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
4924 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
4925 wpas_p2p_check_join_scan_limit(wpa_s
);
4929 /* Start join operation immediately */
4930 wpas_p2p_join_start(wpa_s
, 0, wpa_s
->p2p_join_ssid
,
4931 wpa_s
->p2p_join_ssid_len
);
4935 static void wpas_p2p_join_scan_req(struct wpa_supplicant
*wpa_s
, int freq
,
4936 const u8
*ssid
, size_t ssid_len
)
4939 struct wpa_driver_scan_params params
;
4940 struct wpabuf
*wps_ie
, *ies
;
4942 int freqs
[2] = { 0, 0 };
4944 os_memset(¶ms
, 0, sizeof(params
));
4946 /* P2P Wildcard SSID */
4947 params
.num_ssids
= 1;
4948 if (ssid
&& ssid_len
) {
4949 params
.ssids
[0].ssid
= ssid
;
4950 params
.ssids
[0].ssid_len
= ssid_len
;
4951 os_memcpy(wpa_s
->p2p_join_ssid
, ssid
, ssid_len
);
4952 wpa_s
->p2p_join_ssid_len
= ssid_len
;
4954 params
.ssids
[0].ssid
= (u8
*) P2P_WILDCARD_SSID
;
4955 params
.ssids
[0].ssid_len
= P2P_WILDCARD_SSID_LEN
;
4956 wpa_s
->p2p_join_ssid_len
= 0;
4959 wpa_s
->wps
->dev
.p2p
= 1;
4960 wps_ie
= wps_build_probe_req_ie(DEV_PW_DEFAULT
, &wpa_s
->wps
->dev
,
4961 wpa_s
->wps
->uuid
, WPS_REQ_ENROLLEE
, 0,
4963 if (wps_ie
== NULL
) {
4964 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4968 ielen
= p2p_scan_ie_buf_len(wpa_s
->global
->p2p
);
4969 ies
= wpabuf_alloc(wpabuf_len(wps_ie
) + ielen
);
4971 wpabuf_free(wps_ie
);
4972 wpas_p2p_scan_res_join(wpa_s
, NULL
);
4975 wpabuf_put_buf(ies
, wps_ie
);
4976 wpabuf_free(wps_ie
);
4978 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
4980 params
.p2p_probe
= 1;
4981 params
.extra_ies
= wpabuf_head(ies
);
4982 params
.extra_ies_len
= wpabuf_len(ies
);
4987 * If freq is not provided, check the operating freq of the GO
4988 * and use a single channel scan on if possible.
4990 oper_freq
= p2p_get_oper_freq(wpa_s
->global
->p2p
,
4991 wpa_s
->pending_join_iface_addr
);
4997 params
.freqs
= freqs
;
5001 * Run a scan to update BSS table and start Provision Discovery once
5002 * the new scan results become available.
5004 ret
= wpa_drv_scan(wpa_s
, ¶ms
);
5006 os_get_reltime(&wpa_s
->scan_trigger_time
);
5007 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_join
;
5008 wpa_s
->own_scan_requested
= 1;
5014 wpa_printf(MSG_DEBUG
, "P2P: Failed to start scan for join - "
5016 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
5017 eloop_register_timeout(1, 0, wpas_p2p_join_scan
, wpa_s
, NULL
);
5018 wpas_p2p_check_join_scan_limit(wpa_s
);
5023 static void wpas_p2p_join_scan(void *eloop_ctx
, void *timeout_ctx
)
5025 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
5026 wpas_p2p_join_scan_req(wpa_s
, 0, NULL
, 0);
5030 static int wpas_p2p_join(struct wpa_supplicant
*wpa_s
, const u8
*iface_addr
,
5031 const u8
*dev_addr
, enum p2p_wps_method wps_method
,
5032 int auto_join
, int op_freq
,
5033 const u8
*ssid
, size_t ssid_len
)
5035 wpa_printf(MSG_DEBUG
, "P2P: Request to join existing group (iface "
5036 MACSTR
" dev " MACSTR
" op_freq=%d)%s",
5037 MAC2STR(iface_addr
), MAC2STR(dev_addr
), op_freq
,
5038 auto_join
? " (auto_join)" : "");
5039 if (ssid
&& ssid_len
) {
5040 wpa_printf(MSG_DEBUG
, "P2P: Group SSID specified: %s",
5041 wpa_ssid_txt(ssid
, ssid_len
));
5044 wpa_s
->p2p_auto_pd
= 0;
5045 wpa_s
->p2p_auto_join
= !!auto_join
;
5046 os_memcpy(wpa_s
->pending_join_iface_addr
, iface_addr
, ETH_ALEN
);
5047 os_memcpy(wpa_s
->pending_join_dev_addr
, dev_addr
, ETH_ALEN
);
5048 wpa_s
->pending_join_wps_method
= wps_method
;
5050 /* Make sure we are not running find during connection establishment */
5051 wpas_p2p_stop_find(wpa_s
);
5053 wpa_s
->p2p_join_scan_count
= 0;
5054 wpas_p2p_join_scan_req(wpa_s
, op_freq
, ssid
, ssid_len
);
5059 static int wpas_p2p_join_start(struct wpa_supplicant
*wpa_s
, int freq
,
5060 const u8
*ssid
, size_t ssid_len
)
5062 struct wpa_supplicant
*group
;
5063 struct p2p_go_neg_results res
;
5064 struct wpa_bss
*bss
;
5066 group
= wpas_p2p_get_group_iface(wpa_s
, 0, 0);
5069 if (group
!= wpa_s
) {
5070 os_memcpy(group
->p2p_pin
, wpa_s
->p2p_pin
,
5071 sizeof(group
->p2p_pin
));
5072 group
->p2p_wps_method
= wpa_s
->p2p_wps_method
;
5075 * Need to mark the current interface for p2p_group_formation
5076 * when a separate group interface is not used. This is needed
5077 * to allow p2p_cancel stop a pending p2p_connect-join.
5078 * wpas_p2p_init_group_interface() addresses this for the case
5079 * where a separate group interface is used.
5081 wpa_s
->global
->p2p_group_formation
= wpa_s
;
5084 group
->p2p_in_provisioning
= 1;
5085 group
->p2p_fallback_to_go_neg
= wpa_s
->p2p_fallback_to_go_neg
;
5087 os_memset(&res
, 0, sizeof(res
));
5088 os_memcpy(res
.peer_device_addr
, wpa_s
->pending_join_dev_addr
, ETH_ALEN
);
5089 os_memcpy(res
.peer_interface_addr
, wpa_s
->pending_join_iface_addr
,
5091 res
.wps_method
= wpa_s
->pending_join_wps_method
;
5092 if (freq
&& ssid
&& ssid_len
) {
5094 res
.ssid_len
= ssid_len
;
5095 os_memcpy(res
.ssid
, ssid
, ssid_len
);
5097 if (ssid
&& ssid_len
) {
5098 bss
= wpa_bss_get(wpa_s
, wpa_s
->pending_join_iface_addr
,
5101 bss
= wpa_bss_get_bssid_latest(
5102 wpa_s
, wpa_s
->pending_join_iface_addr
);
5105 res
.freq
= bss
->freq
;
5106 res
.ssid_len
= bss
->ssid_len
;
5107 os_memcpy(res
.ssid
, bss
->ssid
, bss
->ssid_len
);
5108 wpa_printf(MSG_DEBUG
, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5110 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
));
5111 } else if (ssid
&& ssid_len
) {
5112 res
.ssid_len
= ssid_len
;
5113 os_memcpy(res
.ssid
, ssid
, ssid_len
);
5114 wpa_printf(MSG_DEBUG
, "P2P: Join target GO (SSID %s)",
5115 wpa_ssid_txt(ssid
, ssid_len
));
5119 if (wpa_s
->off_channel_freq
|| wpa_s
->roc_waiting_drv_freq
) {
5120 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel prior to "
5122 wpa_drv_cancel_remain_on_channel(wpa_s
);
5123 wpa_s
->off_channel_freq
= 0;
5124 wpa_s
->roc_waiting_drv_freq
= 0;
5126 wpas_start_wps_enrollee(group
, &res
);
5129 * Allow a longer timeout for join-a-running-group than normal 15
5130 * second group formation timeout since the GO may not have authorized
5131 * our connection yet.
5133 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
, NULL
);
5134 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout
,
5141 static int wpas_p2p_setup_freqs(struct wpa_supplicant
*wpa_s
, int freq
,
5142 int *force_freq
, int *pref_freq
, int go
,
5143 unsigned int *pref_freq_list
,
5144 unsigned int *num_pref_freq
)
5146 struct wpa_used_freq_data
*freqs
;
5147 int res
, best_freq
, num_unused
;
5148 unsigned int freq_in_use
= 0, num
, i
, max_pref_freq
;
5150 max_pref_freq
= *num_pref_freq
;
5153 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
5154 sizeof(struct wpa_used_freq_data
));
5158 num
= wpas_p2p_valid_oper_freqs(wpa_s
, freqs
,
5159 wpa_s
->num_multichan_concurrent
);
5162 * It is possible that the total number of used frequencies is bigger
5163 * than the number of frequencies used for P2P, so get the system wide
5164 * number of unused frequencies.
5166 num_unused
= wpas_p2p_num_unused_channels(wpa_s
);
5168 wpa_printf(MSG_DEBUG
,
5169 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5170 freq
, wpa_s
->num_multichan_concurrent
, num
, num_unused
);
5175 ret
= p2p_supported_freq(wpa_s
->global
->p2p
, freq
);
5177 ret
= p2p_supported_freq_cli(wpa_s
->global
->p2p
, freq
);
5179 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
5180 ieee80211_is_dfs(freq
)) {
5182 * If freq is a DFS channel and DFS is offloaded
5183 * to the driver, allow P2P GO to use it.
5185 wpa_printf(MSG_DEBUG
,
5186 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5189 wpa_printf(MSG_DEBUG
,
5190 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5197 for (i
= 0; i
< num
; i
++) {
5198 if (freqs
[i
].freq
== freq
)
5202 if (num_unused
<= 0 && !freq_in_use
) {
5203 wpa_printf(MSG_DEBUG
, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5208 wpa_printf(MSG_DEBUG
, "P2P: Trying to force us to use the "
5209 "requested channel (%u MHz)", freq
);
5214 best_freq
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
5216 if (!wpa_s
->conf
->num_p2p_pref_chan
&& *pref_freq
== 0) {
5217 enum wpa_driver_if_type iface_type
;
5220 iface_type
= WPA_IF_P2P_GO
;
5222 iface_type
= WPA_IF_P2P_CLIENT
;
5224 wpa_printf(MSG_DEBUG
, "P2P: best_freq=%d, go=%d",
5227 res
= wpa_drv_get_pref_freq_list(wpa_s
, iface_type
,
5230 if (!res
&& max_pref_freq
> 0) {
5231 *num_pref_freq
= max_pref_freq
;
5233 while (wpas_p2p_disallowed_freq(wpa_s
->global
,
5234 pref_freq_list
[i
]) &&
5235 i
< *num_pref_freq
) {
5236 wpa_printf(MSG_DEBUG
,
5237 "P2P: preferred_freq_list[%d]=%d is disallowed",
5238 i
, pref_freq_list
[i
]);
5241 if (i
!= *num_pref_freq
) {
5242 best_freq
= pref_freq_list
[i
];
5243 wpa_printf(MSG_DEBUG
,
5244 "P2P: Using preferred_freq_list[%d]=%d",
5247 wpa_printf(MSG_DEBUG
,
5248 "P2P: All driver preferred frequencies are disallowed for P2P use");
5252 wpa_printf(MSG_DEBUG
,
5253 "P2P: No preferred frequency list available");
5257 /* We have a candidate frequency to use */
5258 if (best_freq
> 0) {
5259 if (*pref_freq
== 0 && num_unused
> 0) {
5260 wpa_printf(MSG_DEBUG
, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5262 *pref_freq
= best_freq
;
5264 wpa_printf(MSG_DEBUG
, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5266 *force_freq
= best_freq
;
5268 } else if (num_unused
> 0) {
5269 wpa_printf(MSG_DEBUG
,
5270 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5273 wpa_printf(MSG_DEBUG
,
5274 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5288 * wpas_p2p_connect - Request P2P Group Formation to be started
5289 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5290 * @peer_addr: Address of the peer P2P Device
5291 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5292 * @persistent_group: Whether to create a persistent group
5293 * @auto_join: Whether to select join vs. GO Negotiation automatically
5294 * @join: Whether to join an existing group (as a client) instead of starting
5295 * Group Owner negotiation; @peer_addr is BSSID in that case
5296 * @auth: Whether to only authorize the connection instead of doing that and
5297 * initiating Group Owner negotiation
5298 * @go_intent: GO Intent or -1 to use default
5299 * @freq: Frequency for the group or 0 for auto-selection
5300 * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5301 * @persistent_id: Persistent group credentials to use for forcing GO
5302 * parameters or -1 to generate new values (SSID/passphrase)
5303 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5304 * interoperability workaround when initiating group formation
5305 * @ht40: Start GO with 40 MHz channel width
5306 * @vht: Start GO with VHT support
5307 * @vht_chwidth: Channel width supported by GO operating with VHT support
5308 * (VHT_CHANWIDTH_*).
5309 * @group_ssid: Specific Group SSID for join or %NULL if not set
5310 * @group_ssid_len: Length of @group_ssid in octets
5311 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5312 * failure, -2 on failure due to channel not currently available,
5313 * -3 if forced channel is not supported
5315 int wpas_p2p_connect(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
5316 const char *pin
, enum p2p_wps_method wps_method
,
5317 int persistent_group
, int auto_join
, int join
, int auth
,
5318 int go_intent
, int freq
, unsigned int vht_center_freq2
,
5319 int persistent_id
, int pd
, int ht40
, int vht
,
5320 unsigned int vht_chwidth
, const u8
*group_ssid
,
5321 size_t group_ssid_len
)
5323 int force_freq
= 0, pref_freq
= 0;
5325 enum wpa_driver_if_type iftype
;
5327 struct wpa_ssid
*ssid
= NULL
;
5328 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
5330 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5333 if (persistent_id
>= 0) {
5334 ssid
= wpa_config_get_network(wpa_s
->conf
, persistent_id
);
5335 if (ssid
== NULL
|| ssid
->disabled
!= 2 ||
5336 ssid
->mode
!= WPAS_MODE_P2P_GO
)
5340 os_free(wpa_s
->global
->add_psk
);
5341 wpa_s
->global
->add_psk
= NULL
;
5343 wpa_s
->global
->p2p_fail_on_wps_complete
= 0;
5344 wpa_s
->global
->pending_p2ps_group
= 0;
5345 wpa_s
->global
->pending_p2ps_group_freq
= 0;
5346 wpa_s
->p2ps_method_config_any
= 0;
5349 go_intent
= wpa_s
->conf
->p2p_go_intent
;
5352 wpa_s
->p2p_long_listen
= 0;
5354 wpa_s
->p2p_wps_method
= wps_method
;
5355 wpa_s
->p2p_persistent_group
= !!persistent_group
;
5356 wpa_s
->p2p_persistent_id
= persistent_id
;
5357 wpa_s
->p2p_go_intent
= go_intent
;
5358 wpa_s
->p2p_connect_freq
= freq
;
5359 wpa_s
->p2p_fallback_to_go_neg
= 0;
5360 wpa_s
->p2p_pd_before_go_neg
= !!pd
;
5361 wpa_s
->p2p_go_ht40
= !!ht40
;
5362 wpa_s
->p2p_go_vht
= !!vht
;
5363 wpa_s
->p2p_go_vht_center_freq2
= vht_center_freq2
;
5364 wpa_s
->p2p_go_max_oper_chwidth
= vht_chwidth
;
5367 os_strlcpy(wpa_s
->p2p_pin
, pin
, sizeof(wpa_s
->p2p_pin
));
5368 else if (wps_method
== WPS_PIN_DISPLAY
) {
5369 ret
= wps_generate_pin();
5370 res
= os_snprintf(wpa_s
->p2p_pin
, sizeof(wpa_s
->p2p_pin
),
5372 if (os_snprintf_error(sizeof(wpa_s
->p2p_pin
), res
))
5373 wpa_s
->p2p_pin
[sizeof(wpa_s
->p2p_pin
) - 1] = '\0';
5374 wpa_printf(MSG_DEBUG
, "P2P: Randomly generated PIN: %s",
5377 wpa_s
->p2p_pin
[0] = '\0';
5379 if (join
|| auto_join
) {
5380 u8 iface_addr
[ETH_ALEN
], dev_addr
[ETH_ALEN
];
5382 wpa_printf(MSG_DEBUG
, "P2P: Authorize invitation to "
5383 "connect a running group from " MACSTR
,
5384 MAC2STR(peer_addr
));
5385 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
5388 os_memcpy(dev_addr
, peer_addr
, ETH_ALEN
);
5389 if (p2p_get_interface_addr(wpa_s
->global
->p2p
, peer_addr
,
5391 os_memcpy(iface_addr
, peer_addr
, ETH_ALEN
);
5392 p2p_get_dev_addr(wpa_s
->global
->p2p
, peer_addr
,
5396 os_get_reltime(&wpa_s
->p2p_auto_started
);
5397 wpa_printf(MSG_DEBUG
, "P2P: Auto join started at "
5399 wpa_s
->p2p_auto_started
.sec
,
5400 wpa_s
->p2p_auto_started
.usec
);
5402 wpa_s
->user_initiated_pd
= 1;
5403 if (wpas_p2p_join(wpa_s
, iface_addr
, dev_addr
, wps_method
,
5405 group_ssid
, group_ssid_len
) < 0)
5410 size
= P2P_MAX_PREF_CHANNELS
;
5411 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
5412 go_intent
== 15, pref_freq_list
, &size
);
5415 wpas_p2p_set_own_freq_preference(wpa_s
,
5416 force_freq
? force_freq
: pref_freq
);
5418 p2p_set_own_pref_freq_list(wpa_s
->global
->p2p
, pref_freq_list
, size
);
5420 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
5422 if (wpa_s
->create_p2p_iface
) {
5423 /* Prepare to add a new interface for the group */
5424 iftype
= WPA_IF_P2P_GROUP
;
5425 if (go_intent
== 15)
5426 iftype
= WPA_IF_P2P_GO
;
5427 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
5428 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
5429 "interface for the group");
5433 if_addr
= wpa_s
->pending_interface_addr
;
5435 if_addr
= wpa_s
->own_addr
;
5436 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
5440 if (wpas_p2p_auth_go_neg(wpa_s
, peer_addr
, wps_method
,
5442 force_freq
, persistent_group
, ssid
,
5448 if (wpas_p2p_start_go_neg(wpa_s
, peer_addr
, wps_method
,
5449 go_intent
, if_addr
, force_freq
,
5450 persistent_group
, ssid
, pref_freq
) < 0) {
5451 if (wpa_s
->create_p2p_iface
)
5452 wpas_p2p_remove_pending_group_interface(wpa_s
);
5460 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5461 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5462 * @freq: Frequency of the channel in MHz
5463 * @duration: Duration of the stay on the channel in milliseconds
5465 * This callback is called when the driver indicates that it has started the
5466 * requested remain-on-channel duration.
5468 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5469 unsigned int freq
, unsigned int duration
)
5471 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5473 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)",
5474 wpa_s
->off_channel_freq
, wpa_s
->pending_listen_freq
,
5475 wpa_s
->roc_waiting_drv_freq
, freq
, duration
);
5476 if (wpa_s
->off_channel_freq
&&
5477 wpa_s
->off_channel_freq
== wpa_s
->pending_listen_freq
) {
5478 p2p_listen_cb(wpa_s
->global
->p2p
, wpa_s
->pending_listen_freq
,
5479 wpa_s
->pending_listen_duration
);
5480 wpa_s
->pending_listen_freq
= 0;
5482 wpa_printf(MSG_DEBUG
, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5483 wpa_s
->off_channel_freq
, wpa_s
->pending_listen_freq
,
5489 int wpas_p2p_listen_start(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
5491 /* Limit maximum Listen state time based on driver limitation. */
5492 if (timeout
> wpa_s
->max_remain_on_chan
)
5493 timeout
= wpa_s
->max_remain_on_chan
;
5495 return p2p_listen(wpa_s
->global
->p2p
, timeout
);
5500 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5501 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5502 * @freq: Frequency of the channel in MHz
5504 * This callback is called when the driver indicates that a remain-on-channel
5505 * operation has been completed, i.e., the duration on the requested channel
5508 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant
*wpa_s
,
5511 wpa_printf(MSG_DEBUG
, "P2P: Cancel remain-on-channel callback "
5512 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5513 wpa_s
->p2p_long_listen
, offchannel_pending_action_tx(wpa_s
));
5514 wpas_p2p_listen_work_done(wpa_s
);
5515 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
5517 if (wpa_s
->p2p_long_listen
> 0)
5518 wpa_s
->p2p_long_listen
-= wpa_s
->max_remain_on_chan
;
5519 if (p2p_listen_end(wpa_s
->global
->p2p
, freq
) > 0)
5520 return; /* P2P module started a new operation */
5521 if (offchannel_pending_action_tx(wpa_s
))
5523 if (wpa_s
->p2p_long_listen
> 0) {
5524 wpa_printf(MSG_DEBUG
, "P2P: Continuing long Listen state");
5525 wpas_p2p_listen_start(wpa_s
, wpa_s
->p2p_long_listen
);
5528 * When listen duration is over, stop listen & update p2p_state
5531 p2p_stop_listen(wpa_s
->global
->p2p
);
5537 * wpas_p2p_group_remove - Remove a P2P group
5538 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5539 * @ifname: Network interface name of the group interface or "*" to remove all
5541 * Returns: 0 on success, -1 on failure
5543 * This function is used to remove a P2P group. This can be used to disconnect
5544 * from a group in which the local end is a P2P Client or to end a P2P Group in
5545 * case the local end is the Group Owner. If a virtual network interface was
5546 * created for this group, that interface will be removed. Otherwise, only the
5547 * configured P2P group network will be removed from the interface.
5549 int wpas_p2p_group_remove(struct wpa_supplicant
*wpa_s
, const char *ifname
)
5551 struct wpa_global
*global
= wpa_s
->global
;
5552 struct wpa_supplicant
*calling_wpa_s
= wpa_s
;
5554 if (os_strcmp(ifname
, "*") == 0) {
5555 struct wpa_supplicant
*prev
;
5556 wpa_s
= global
->ifaces
;
5559 wpa_s
= wpa_s
->next
;
5560 if (prev
->p2p_group_interface
!=
5561 NOT_P2P_GROUP_INTERFACE
||
5562 (prev
->current_ssid
&&
5563 prev
->current_ssid
->p2p_group
))
5564 wpas_p2p_disconnect_safely(prev
, calling_wpa_s
);
5569 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
5570 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
5574 return wpas_p2p_disconnect_safely(wpa_s
, calling_wpa_s
);
5578 static int wpas_p2p_select_go_freq(struct wpa_supplicant
*wpa_s
, int freq
)
5582 if (!wpa_s
->conf
->num_p2p_pref_chan
&& !freq
) {
5583 unsigned int i
, size
= P2P_MAX_PREF_CHANNELS
;
5584 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
];
5587 res
= wpa_drv_get_pref_freq_list(wpa_s
, WPA_IF_P2P_GO
,
5588 &size
, pref_freq_list
);
5589 if (!res
&& size
> 0) {
5591 while (wpas_p2p_disallowed_freq(wpa_s
->global
,
5592 pref_freq_list
[i
]) &&
5594 wpa_printf(MSG_DEBUG
,
5595 "P2P: preferred_freq_list[%d]=%d is disallowed",
5596 i
, pref_freq_list
[i
]);
5600 freq
= pref_freq_list
[i
];
5601 wpa_printf(MSG_DEBUG
,
5602 "P2P: Using preferred_freq_list[%d]=%d",
5605 wpa_printf(MSG_DEBUG
,
5606 "P2P: All driver preferred frequencies are disallowed for P2P use");
5609 wpa_printf(MSG_DEBUG
,
5610 "P2P: No preferred frequency list available");
5615 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 2.4 GHz "
5617 if (wpa_s
->best_24_freq
> 0 &&
5618 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5619 wpa_s
->best_24_freq
)) {
5620 freq
= wpa_s
->best_24_freq
;
5621 wpa_printf(MSG_DEBUG
, "P2P: Use best 2.4 GHz band "
5622 "channel: %d MHz", freq
);
5624 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5626 freq
= 2412 + (r
% 3) * 25;
5627 wpa_printf(MSG_DEBUG
, "P2P: Use random 2.4 GHz band "
5628 "channel: %d MHz", freq
);
5633 wpa_printf(MSG_DEBUG
, "P2P: Request to start GO on 5 GHz "
5635 if (wpa_s
->best_5_freq
> 0 &&
5636 p2p_supported_freq_go(wpa_s
->global
->p2p
,
5637 wpa_s
->best_5_freq
)) {
5638 freq
= wpa_s
->best_5_freq
;
5639 wpa_printf(MSG_DEBUG
, "P2P: Use best 5 GHz band "
5640 "channel: %d MHz", freq
);
5642 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5644 freq
= 5180 + (r
% 4) * 20;
5645 if (!p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5646 wpa_printf(MSG_DEBUG
, "P2P: Could not select "
5647 "5 GHz channel for P2P group");
5650 wpa_printf(MSG_DEBUG
, "P2P: Use random 5 GHz band "
5651 "channel: %d MHz", freq
);
5655 if (freq
> 0 && !p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
5656 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
5657 ieee80211_is_dfs(freq
)) {
5659 * If freq is a DFS channel and DFS is offloaded to the
5660 * driver, allow P2P GO to use it.
5662 wpa_printf(MSG_DEBUG
, "P2P: "
5663 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5667 wpa_printf(MSG_DEBUG
, "P2P: The forced channel for GO "
5668 "(%u MHz) is not supported for P2P uses",
5677 static int wpas_p2p_supported_freq_go(struct wpa_supplicant
*wpa_s
,
5678 const struct p2p_channels
*channels
,
5681 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, freq
) &&
5682 p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
) &&
5683 freq_included(wpa_s
, channels
, freq
))
5689 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant
*wpa_s
,
5690 struct p2p_go_neg_results
*params
,
5691 const struct p2p_channels
*channels
)
5695 /* first try some random selection of the social channels */
5696 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
5699 for (i
= 0; i
< 3; i
++) {
5700 params
->freq
= 2412 + ((r
+ i
) % 3) * 25;
5701 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, params
->freq
))
5705 /* try all other channels in operating class 81 */
5706 for (i
= 0; i
< 11; i
++) {
5707 params
->freq
= 2412 + i
* 5;
5709 /* skip social channels; covered in the previous loop */
5710 if (params
->freq
== 2412 ||
5711 params
->freq
== 2437 ||
5712 params
->freq
== 2462)
5715 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, params
->freq
))
5719 /* try all channels in operating class 115 */
5720 for (i
= 0; i
< 4; i
++) {
5721 params
->freq
= 5180 + i
* 20;
5722 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5723 freq_included(wpa_s
, channels
, params
->freq
) &&
5724 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5728 /* try all channels in operating class 124 */
5729 for (i
= 0; i
< 4; i
++) {
5730 params
->freq
= 5745 + i
* 20;
5731 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5732 freq_included(wpa_s
, channels
, params
->freq
) &&
5733 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5737 /* try social channel class 180 channel 2 */
5738 params
->freq
= 58320 + 1 * 2160;
5739 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5740 freq_included(wpa_s
, channels
, params
->freq
) &&
5741 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5744 /* try all channels in reg. class 180 */
5745 for (i
= 0; i
< 4; i
++) {
5746 params
->freq
= 58320 + i
* 2160;
5747 if (!wpas_p2p_disallowed_freq(wpa_s
->global
, params
->freq
) &&
5748 freq_included(wpa_s
, channels
, params
->freq
) &&
5749 p2p_supported_freq(wpa_s
->global
->p2p
, params
->freq
))
5754 wpa_printf(MSG_DEBUG
, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5757 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz (no preference known)",
5762 static int wpas_p2p_init_go_params(struct wpa_supplicant
*wpa_s
,
5763 struct p2p_go_neg_results
*params
,
5764 int freq
, int vht_center_freq2
, int ht40
,
5765 int vht
, int max_oper_chwidth
,
5766 const struct p2p_channels
*channels
)
5768 struct wpa_used_freq_data
*freqs
;
5770 unsigned int num
, i
;
5771 int ignore_no_freqs
= 0;
5773 os_memset(params
, 0, sizeof(*params
));
5774 params
->role_go
= 1;
5775 params
->ht40
= ht40
;
5777 params
->max_oper_chwidth
= max_oper_chwidth
;
5778 params
->vht_center_freq2
= vht_center_freq2
;
5780 freqs
= os_calloc(wpa_s
->num_multichan_concurrent
,
5781 sizeof(struct wpa_used_freq_data
));
5785 num
= get_shared_radio_freqs_data(wpa_s
, freqs
,
5786 wpa_s
->num_multichan_concurrent
);
5788 if (wpa_s
->current_ssid
&&
5789 wpa_s
->current_ssid
->mode
== WPAS_MODE_P2P_GO
&&
5790 wpa_s
->wpa_state
== WPA_COMPLETED
) {
5791 wpa_printf(MSG_DEBUG
, "P2P: %s called for an active GO",
5795 * If the frequency selection is done for an active P2P GO that
5796 * is not sharing a frequency, allow to select a new frequency
5797 * even if there are no unused frequencies as we are about to
5798 * move the P2P GO so its frequency can be re-used.
5800 for (i
= 0; i
< num
; i
++) {
5801 if (freqs
[i
].freq
== wpa_s
->current_ssid
->frequency
&&
5802 freqs
[i
].flags
== 0) {
5803 ignore_no_freqs
= 1;
5809 /* try using the forced freq */
5811 if (!wpas_p2p_supported_freq_go(wpa_s
, channels
, freq
)) {
5812 wpa_printf(MSG_DEBUG
,
5813 "P2P: Forced GO freq %d MHz not accepted",
5818 for (i
= 0; i
< num
; i
++) {
5819 if (freqs
[i
].freq
== freq
) {
5820 wpa_printf(MSG_DEBUG
,
5821 "P2P: forced freq (%d MHz) is also shared",
5823 params
->freq
= freq
;
5828 if (!ignore_no_freqs
&&
5829 wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5830 wpa_printf(MSG_DEBUG
,
5831 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5836 wpa_printf(MSG_DEBUG
,
5837 "P2P: force GO freq (%d MHz) on a free channel",
5839 params
->freq
= freq
;
5843 /* consider using one of the shared frequencies */
5845 cand
= wpas_p2p_pick_best_used_freq(wpa_s
, freqs
, num
);
5846 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5847 wpa_printf(MSG_DEBUG
,
5848 "P2P: Use shared freq (%d MHz) for GO",
5850 params
->freq
= cand
;
5854 /* try using one of the shared freqs */
5855 for (i
= 0; i
< num
; i
++) {
5856 if (wpas_p2p_supported_freq_go(wpa_s
, channels
,
5858 wpa_printf(MSG_DEBUG
,
5859 "P2P: Use shared freq (%d MHz) for GO",
5861 params
->freq
= freqs
[i
].freq
;
5867 if (!ignore_no_freqs
&&
5868 wpas_p2p_num_unused_channels(wpa_s
) <= 0) {
5869 wpa_printf(MSG_DEBUG
,
5870 "P2P: Cannot force GO on any of the channels we are already using");
5874 /* try using the setting from the configuration file */
5875 if (wpa_s
->conf
->p2p_oper_reg_class
== 81 &&
5876 wpa_s
->conf
->p2p_oper_channel
>= 1 &&
5877 wpa_s
->conf
->p2p_oper_channel
<= 11 &&
5878 wpas_p2p_supported_freq_go(
5880 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5881 params
->freq
= 2407 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5882 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5883 "frequency %d MHz", params
->freq
);
5887 if ((wpa_s
->conf
->p2p_oper_reg_class
== 115 ||
5888 wpa_s
->conf
->p2p_oper_reg_class
== 116 ||
5889 wpa_s
->conf
->p2p_oper_reg_class
== 117 ||
5890 wpa_s
->conf
->p2p_oper_reg_class
== 124 ||
5891 wpa_s
->conf
->p2p_oper_reg_class
== 125 ||
5892 wpa_s
->conf
->p2p_oper_reg_class
== 126 ||
5893 wpa_s
->conf
->p2p_oper_reg_class
== 127) &&
5894 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5896 5 * wpa_s
->conf
->p2p_oper_channel
)) {
5897 params
->freq
= 5000 + 5 * wpa_s
->conf
->p2p_oper_channel
;
5898 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on configured "
5899 "frequency %d MHz", params
->freq
);
5903 /* Try using best channels */
5904 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5905 wpa_s
->best_overall_freq
> 0 &&
5906 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5907 wpa_s
->best_overall_freq
)) {
5908 params
->freq
= wpa_s
->best_overall_freq
;
5909 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best overall "
5910 "channel %d MHz", params
->freq
);
5914 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5915 wpa_s
->best_24_freq
> 0 &&
5916 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5917 wpa_s
->best_24_freq
)) {
5918 params
->freq
= wpa_s
->best_24_freq
;
5919 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 2.4 GHz "
5920 "channel %d MHz", params
->freq
);
5924 if (wpa_s
->conf
->p2p_oper_channel
== 0 &&
5925 wpa_s
->best_5_freq
> 0 &&
5926 wpas_p2p_supported_freq_go(wpa_s
, channels
,
5927 wpa_s
->best_5_freq
)) {
5928 params
->freq
= wpa_s
->best_5_freq
;
5929 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq based on best 5 GHz "
5930 "channel %d MHz", params
->freq
);
5934 /* try using preferred channels */
5935 cand
= p2p_get_pref_freq(wpa_s
->global
->p2p
, channels
);
5936 if (cand
&& wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5937 params
->freq
= cand
;
5938 wpa_printf(MSG_DEBUG
, "P2P: Set GO freq %d MHz from preferred "
5939 "channels", params
->freq
);
5943 /* Try using one of the group common freqs */
5944 if (wpa_s
->p2p_group_common_freqs
) {
5945 for (i
= 0; i
< wpa_s
->p2p_group_common_freqs_num
; i
++) {
5946 cand
= wpa_s
->p2p_group_common_freqs
[i
];
5947 if (wpas_p2p_supported_freq_go(wpa_s
, channels
, cand
)) {
5948 params
->freq
= cand
;
5949 wpa_printf(MSG_DEBUG
,
5950 "P2P: Use freq %d MHz common with the peer",
5957 /* no preference, select some channel */
5958 wpas_p2p_select_go_freq_no_pref(wpa_s
, params
, channels
);
5960 if (params
->freq
== 0) {
5961 wpa_printf(MSG_DEBUG
, "P2P: did not find a freq for GO use");
5974 static struct wpa_supplicant
*
5975 wpas_p2p_get_group_iface(struct wpa_supplicant
*wpa_s
, int addr_allocated
,
5978 struct wpa_supplicant
*group_wpa_s
;
5980 if (!wpas_p2p_create_iface(wpa_s
)) {
5981 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use same interface for group "
5983 wpa_s
->p2p_first_connection_timeout
= 0;
5987 if (wpas_p2p_add_group_interface(wpa_s
, go
? WPA_IF_P2P_GO
:
5988 WPA_IF_P2P_CLIENT
) < 0) {
5989 wpa_msg_global(wpa_s
, MSG_ERROR
,
5990 "P2P: Failed to add group interface");
5993 group_wpa_s
= wpas_p2p_init_group_interface(wpa_s
, go
);
5994 if (group_wpa_s
== NULL
) {
5995 wpa_msg_global(wpa_s
, MSG_ERROR
,
5996 "P2P: Failed to initialize group interface");
5997 wpas_p2p_remove_pending_group_interface(wpa_s
);
6001 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use separate group interface %s",
6002 group_wpa_s
->ifname
);
6003 group_wpa_s
->p2p_first_connection_timeout
= 0;
6009 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6010 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6011 * @persistent_group: Whether to create a persistent group
6012 * @freq: Frequency for the group or 0 to indicate no hardcoding
6013 * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6014 * @ht40: Start GO with 40 MHz channel width
6015 * @vht: Start GO with VHT support
6016 * @vht_chwidth: channel bandwidth for GO operating with VHT support
6017 * Returns: 0 on success, -1 on failure
6019 * This function creates a new P2P group with the local end as the Group Owner,
6020 * i.e., without using Group Owner Negotiation.
6022 int wpas_p2p_group_add(struct wpa_supplicant
*wpa_s
, int persistent_group
,
6023 int freq
, int vht_center_freq2
, int ht40
, int vht
,
6024 int max_oper_chwidth
)
6026 struct p2p_go_neg_results params
;
6028 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6031 os_free(wpa_s
->global
->add_psk
);
6032 wpa_s
->global
->add_psk
= NULL
;
6034 /* Make sure we are not running find during connection establishment */
6035 wpa_printf(MSG_DEBUG
, "P2P: Stop any on-going P2P FIND");
6036 wpas_p2p_stop_find_oper(wpa_s
);
6038 freq
= wpas_p2p_select_go_freq(wpa_s
, freq
);
6042 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, vht_center_freq2
,
6043 ht40
, vht
, max_oper_chwidth
, NULL
))
6046 !p2p_supported_freq_go(wpa_s
->global
->p2p
, params
.freq
)) {
6047 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
) &&
6048 ieee80211_is_dfs(params
.freq
)) {
6050 * If freq is a DFS channel and DFS is offloaded to the
6051 * driver, allow P2P GO to use it.
6053 wpa_printf(MSG_DEBUG
,
6054 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6055 __func__
, params
.freq
);
6057 wpa_printf(MSG_DEBUG
,
6058 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6063 p2p_go_params(wpa_s
->global
->p2p
, ¶ms
);
6064 params
.persistent_group
= persistent_group
;
6066 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, 0, 1);
6069 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
6075 static int wpas_start_p2p_client(struct wpa_supplicant
*wpa_s
,
6076 struct wpa_ssid
*params
, int addr_allocated
,
6077 int freq
, int force_scan
)
6079 struct wpa_ssid
*ssid
;
6081 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 0);
6085 os_get_reltime(&wpa_s
->scan_min_time
);
6086 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
6088 wpa_supplicant_ap_deinit(wpa_s
);
6090 ssid
= wpa_config_add_network(wpa_s
->conf
);
6093 os_memset(wpa_s
->go_dev_addr
, 0, ETH_ALEN
);
6094 wpa_config_set_network_defaults(ssid
);
6095 ssid
->temporary
= 1;
6096 ssid
->proto
= WPA_PROTO_RSN
;
6097 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
6098 ssid
->group_cipher
= WPA_CIPHER_CCMP
;
6099 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
6100 ssid
->ssid
= os_malloc(params
->ssid_len
);
6101 if (ssid
->ssid
== NULL
) {
6102 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
6105 os_memcpy(ssid
->ssid
, params
->ssid
, params
->ssid_len
);
6106 ssid
->ssid_len
= params
->ssid_len
;
6107 ssid
->p2p_group
= 1;
6108 ssid
->export_keys
= 1;
6109 if (params
->psk_set
) {
6110 os_memcpy(ssid
->psk
, params
->psk
, 32);
6113 if (params
->passphrase
)
6114 ssid
->passphrase
= os_strdup(params
->passphrase
);
6116 wpa_s
->show_group_started
= 1;
6117 wpa_s
->p2p_in_invitation
= 1;
6118 wpa_s
->p2p_invite_go_freq
= freq
;
6119 wpa_s
->p2p_go_group_formation_completed
= 0;
6120 wpa_s
->global
->p2p_group_formation
= wpa_s
;
6122 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
6124 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
6125 wpas_p2p_group_formation_timeout
,
6126 wpa_s
->parent
, NULL
);
6127 wpa_supplicant_select_network(wpa_s
, ssid
);
6133 int wpas_p2p_group_add_persistent(struct wpa_supplicant
*wpa_s
,
6134 struct wpa_ssid
*ssid
, int addr_allocated
,
6135 int force_freq
, int neg_freq
,
6136 int vht_center_freq2
, int ht40
,
6137 int vht
, int max_oper_chwidth
,
6138 const struct p2p_channels
*channels
,
6139 int connection_timeout
, int force_scan
)
6141 struct p2p_go_neg_results params
;
6144 if (ssid
->disabled
!= 2 || ssid
->ssid
== NULL
)
6147 if (wpas_get_p2p_group(wpa_s
, ssid
->ssid
, ssid
->ssid_len
, &go
) &&
6148 go
== (ssid
->mode
== WPAS_MODE_P2P_GO
)) {
6149 wpa_printf(MSG_DEBUG
, "P2P: Requested persistent group is "
6152 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
6153 wpa_s
->parent
, NULL
)) {
6155 * This can happen if Invitation Response frame was lost
6156 * and the peer (GO of a persistent group) tries to
6157 * invite us again. Reschedule the timeout to avoid
6158 * terminating the wait for the connection too early
6159 * since we now know that the peer is still trying to
6160 * invite us instead of having already started the GO.
6162 wpa_printf(MSG_DEBUG
,
6163 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6164 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
6165 wpas_p2p_group_formation_timeout
,
6166 wpa_s
->parent
, NULL
);
6171 os_free(wpa_s
->global
->add_psk
);
6172 wpa_s
->global
->add_psk
= NULL
;
6174 /* Make sure we are not running find during connection establishment */
6175 wpas_p2p_stop_find_oper(wpa_s
);
6177 wpa_s
->p2p_fallback_to_go_neg
= 0;
6179 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6180 if (force_freq
> 0) {
6181 freq
= wpas_p2p_select_go_freq(wpa_s
, force_freq
);
6185 freq
= wpas_p2p_select_go_freq(wpa_s
, neg_freq
);
6187 (freq
> 0 && !freq_included(wpa_s
, channels
, freq
)))
6190 } else if (ssid
->mode
== WPAS_MODE_INFRA
) {
6192 if (freq
<= 0 || !freq_included(wpa_s
, channels
, freq
)) {
6193 struct os_reltime now
;
6194 struct wpa_bss
*bss
=
6195 wpa_bss_get_p2p_dev_addr(wpa_s
, ssid
->bssid
);
6197 os_get_reltime(&now
);
6199 !os_reltime_expired(&now
, &bss
->last_update
, 5) &&
6200 freq_included(wpa_s
, channels
, bss
->freq
))
6206 return wpas_start_p2p_client(wpa_s
, ssid
, addr_allocated
, freq
,
6212 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, freq
, vht_center_freq2
,
6213 ht40
, vht
, max_oper_chwidth
, channels
))
6217 params
.psk_set
= ssid
->psk_set
;
6219 os_memcpy(params
.psk
, ssid
->psk
, sizeof(params
.psk
));
6220 if (ssid
->passphrase
) {
6221 if (os_strlen(ssid
->passphrase
) >= sizeof(params
.passphrase
)) {
6222 wpa_printf(MSG_ERROR
, "P2P: Invalid passphrase in "
6223 "persistent group");
6226 os_strlcpy(params
.passphrase
, ssid
->passphrase
,
6227 sizeof(params
.passphrase
));
6229 os_memcpy(params
.ssid
, ssid
->ssid
, ssid
->ssid_len
);
6230 params
.ssid_len
= ssid
->ssid_len
;
6231 params
.persistent_group
= 1;
6233 wpa_s
= wpas_p2p_get_group_iface(wpa_s
, addr_allocated
, 1);
6237 p2p_channels_to_freqs(channels
, params
.freq_list
, P2P_MAX_CHANNELS
);
6239 wpa_s
->p2p_first_connection_timeout
= connection_timeout
;
6240 wpas_start_wps_go(wpa_s
, ¶ms
, 0);
6246 static void wpas_p2p_ie_update(void *ctx
, struct wpabuf
*beacon_ies
,
6247 struct wpabuf
*proberesp_ies
)
6249 struct wpa_supplicant
*wpa_s
= ctx
;
6250 if (wpa_s
->ap_iface
) {
6251 struct hostapd_data
*hapd
= wpa_s
->ap_iface
->bss
[0];
6252 if (!(hapd
->conf
->p2p
& P2P_GROUP_OWNER
)) {
6253 wpabuf_free(beacon_ies
);
6254 wpabuf_free(proberesp_ies
);
6258 wpabuf_free(hapd
->p2p_beacon_ie
);
6259 hapd
->p2p_beacon_ie
= beacon_ies
;
6261 wpabuf_free(hapd
->p2p_probe_resp_ie
);
6262 hapd
->p2p_probe_resp_ie
= proberesp_ies
;
6264 wpabuf_free(beacon_ies
);
6265 wpabuf_free(proberesp_ies
);
6267 wpa_supplicant_ap_update_beacon(wpa_s
);
6271 static void wpas_p2p_idle_update(void *ctx
, int idle
)
6273 struct wpa_supplicant
*wpa_s
= ctx
;
6274 if (!wpa_s
->ap_iface
)
6276 wpa_printf(MSG_DEBUG
, "P2P: GO - group %sidle", idle
? "" : "not ");
6278 if (wpa_s
->global
->p2p_fail_on_wps_complete
&&
6279 wpa_s
->p2p_in_provisioning
) {
6280 wpas_p2p_grpform_fail_after_wps(wpa_s
);
6283 wpas_p2p_set_group_idle_timeout(wpa_s
);
6285 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
);
6289 struct p2p_group
* wpas_p2p_group_init(struct wpa_supplicant
*wpa_s
,
6290 struct wpa_ssid
*ssid
)
6292 struct p2p_group
*group
;
6293 struct p2p_group_config
*cfg
;
6295 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6298 cfg
= os_zalloc(sizeof(*cfg
));
6302 if (ssid
->p2p_persistent_group
&& wpa_s
->conf
->persistent_reconnect
)
6303 cfg
->persistent_group
= 2;
6304 else if (ssid
->p2p_persistent_group
)
6305 cfg
->persistent_group
= 1;
6306 os_memcpy(cfg
->interface_addr
, wpa_s
->own_addr
, ETH_ALEN
);
6307 if (wpa_s
->max_stations
&&
6308 wpa_s
->max_stations
< wpa_s
->conf
->max_num_sta
)
6309 cfg
->max_clients
= wpa_s
->max_stations
;
6311 cfg
->max_clients
= wpa_s
->conf
->max_num_sta
;
6312 os_memcpy(cfg
->ssid
, ssid
->ssid
, ssid
->ssid_len
);
6313 cfg
->ssid_len
= ssid
->ssid_len
;
6314 cfg
->freq
= ssid
->frequency
;
6315 cfg
->cb_ctx
= wpa_s
;
6316 cfg
->ie_update
= wpas_p2p_ie_update
;
6317 cfg
->idle_update
= wpas_p2p_idle_update
;
6319 group
= p2p_group_init(wpa_s
->global
->p2p
, cfg
);
6322 if (ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
)
6323 p2p_group_notif_formation_done(group
);
6324 wpa_s
->p2p_group
= group
;
6329 void wpas_p2p_wps_success(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6332 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
6334 if (!wpa_s
->p2p_in_provisioning
) {
6335 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS success event - P2P "
6336 "provisioning not in progress");
6340 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
6341 u8 go_dev_addr
[ETH_ALEN
];
6342 os_memcpy(go_dev_addr
, wpa_s
->bssid
, ETH_ALEN
);
6343 wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
6345 /* Clear any stored provisioning info */
6346 p2p_clear_provisioning_info(wpa_s
->global
->p2p
, go_dev_addr
);
6349 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
, wpa_s
->parent
,
6351 wpa_s
->p2p_go_group_formation_completed
= 1;
6352 if (ssid
&& ssid
->mode
== WPAS_MODE_INFRA
) {
6354 * Use a separate timeout for initial data connection to
6355 * complete to allow the group to be removed automatically if
6356 * something goes wrong in this step before the P2P group idle
6357 * timeout mechanism is taken into use.
6359 wpa_dbg(wpa_s
, MSG_DEBUG
,
6360 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6361 P2P_MAX_INITIAL_CONN_WAIT
);
6362 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT
, 0,
6363 wpas_p2p_group_formation_timeout
,
6364 wpa_s
->parent
, NULL
);
6365 /* Complete group formation on successful data connection. */
6366 wpa_s
->p2p_go_group_formation_completed
= 0;
6369 * Use a separate timeout for initial data connection to
6370 * complete to allow the group to be removed automatically if
6371 * the client does not complete data connection successfully.
6373 wpa_dbg(wpa_s
, MSG_DEBUG
,
6374 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6375 P2P_MAX_INITIAL_CONN_WAIT_GO
);
6376 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO
, 0,
6377 wpas_p2p_group_formation_timeout
,
6378 wpa_s
->parent
, NULL
);
6380 * Complete group formation on first successful data connection
6382 wpa_s
->p2p_go_group_formation_completed
= 0;
6384 if (wpa_s
->global
->p2p
)
6385 p2p_wps_success_cb(wpa_s
->global
->p2p
, peer_addr
);
6386 wpas_group_formation_completed(wpa_s
, 1, 0);
6390 void wpas_p2p_wps_failed(struct wpa_supplicant
*wpa_s
,
6391 struct wps_event_fail
*fail
)
6393 if (!wpa_s
->p2p_in_provisioning
) {
6394 wpa_printf(MSG_DEBUG
, "P2P: Ignore WPS fail event - P2P "
6395 "provisioning not in progress");
6399 if (wpa_s
->go_params
) {
6400 p2p_clear_provisioning_info(
6402 wpa_s
->go_params
->peer_device_addr
);
6405 wpas_notify_p2p_wps_failed(wpa_s
, fail
);
6407 if (wpa_s
== wpa_s
->global
->p2p_group_formation
) {
6409 * Allow some time for the failed WPS negotiation exchange to
6410 * complete, but remove the group since group formation cannot
6411 * succeed after provisioning failure.
6413 wpa_printf(MSG_DEBUG
, "P2P: WPS step failed during group formation - reject connection from timeout");
6414 wpa_s
->global
->p2p_fail_on_wps_complete
= 1;
6415 eloop_deplete_timeout(0, 50000,
6416 wpas_p2p_group_formation_timeout
,
6417 wpa_s
->parent
, NULL
);
6422 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant
*wpa_s
)
6424 if (!wpa_s
->global
->p2p_fail_on_wps_complete
||
6425 !wpa_s
->p2p_in_provisioning
)
6428 wpas_p2p_grpform_fail_after_wps(wpa_s
);
6434 int wpas_p2p_prov_disc(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6435 const char *config_method
,
6436 enum wpas_p2p_prov_disc_use use
,
6437 struct p2ps_provision
*p2ps_prov
)
6441 wpa_s
->global
->pending_p2ps_group
= 0;
6442 wpa_s
->global
->pending_p2ps_group_freq
= 0;
6443 wpa_s
->p2p_fallback_to_go_neg
= 0;
6444 wpa_s
->pending_pd_use
= NORMAL_PD
;
6445 if (p2ps_prov
&& use
== WPAS_P2P_PD_FOR_ASP
) {
6446 p2ps_prov
->conncap
= p2ps_group_capability(
6447 wpa_s
, P2PS_SETUP_NONE
, p2ps_prov
->role
,
6448 &p2ps_prov
->force_freq
, &p2ps_prov
->pref_freq
);
6450 wpa_printf(MSG_DEBUG
,
6451 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6452 __func__
, p2ps_prov
->conncap
,
6453 p2ps_prov
->adv_id
, p2ps_prov
->conncap
,
6454 p2ps_prov
->status
, p2ps_prov
->info
);
6457 } else if (os_strncmp(config_method
, "display", 7) == 0)
6458 config_methods
= WPS_CONFIG_DISPLAY
;
6459 else if (os_strncmp(config_method
, "keypad", 6) == 0)
6460 config_methods
= WPS_CONFIG_KEYPAD
;
6461 else if (os_strncmp(config_method
, "pbc", 3) == 0 ||
6462 os_strncmp(config_method
, "pushbutton", 10) == 0)
6463 config_methods
= WPS_CONFIG_PUSHBUTTON
;
6465 wpa_printf(MSG_DEBUG
, "P2P: Unknown config method");
6470 if (use
== WPAS_P2P_PD_AUTO
) {
6471 os_memcpy(wpa_s
->pending_join_dev_addr
, peer_addr
, ETH_ALEN
);
6472 wpa_s
->pending_pd_config_methods
= config_methods
;
6473 wpa_s
->p2p_auto_pd
= 1;
6474 wpa_s
->p2p_auto_join
= 0;
6475 wpa_s
->pending_pd_before_join
= 0;
6476 wpa_s
->auto_pd_scan_retry
= 0;
6477 wpas_p2p_stop_find(wpa_s
);
6478 wpa_s
->p2p_join_scan_count
= 0;
6479 os_get_reltime(&wpa_s
->p2p_auto_started
);
6480 wpa_printf(MSG_DEBUG
, "P2P: Auto PD started at %ld.%06ld",
6481 wpa_s
->p2p_auto_started
.sec
,
6482 wpa_s
->p2p_auto_started
.usec
);
6483 wpas_p2p_join_scan(wpa_s
, NULL
);
6487 if (wpa_s
->global
->p2p
== NULL
|| wpa_s
->global
->p2p_disabled
) {
6492 return p2p_prov_disc_req(wpa_s
->global
->p2p
, peer_addr
, p2ps_prov
,
6493 config_methods
, use
== WPAS_P2P_PD_FOR_JOIN
,
6498 int wpas_p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
,
6501 return p2p_scan_result_text(ies
, ies_len
, buf
, end
);
6505 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant
*wpa_s
)
6507 if (!offchannel_pending_action_tx(wpa_s
))
6510 if (wpa_s
->p2p_send_action_work
) {
6511 wpas_p2p_free_send_action_work(wpa_s
);
6512 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout
,
6514 offchannel_send_action_done(wpa_s
);
6517 wpa_printf(MSG_DEBUG
, "P2P: Drop pending Action TX due to new "
6518 "operation request");
6519 offchannel_clear_pending_action_tx(wpa_s
);
6523 int wpas_p2p_find(struct wpa_supplicant
*wpa_s
, unsigned int timeout
,
6524 enum p2p_discovery_type type
,
6525 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
6526 const u8
*dev_id
, unsigned int search_delay
,
6527 u8 seek_cnt
, const char **seek_string
, int freq
)
6529 wpas_p2p_clear_pending_action_tx(wpa_s
);
6530 wpa_s
->p2p_long_listen
= 0;
6532 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
||
6533 wpa_s
->p2p_in_provisioning
)
6536 wpa_supplicant_cancel_sched_scan(wpa_s
);
6538 return p2p_find(wpa_s
->global
->p2p
, timeout
, type
,
6539 num_req_dev_types
, req_dev_types
, dev_id
,
6540 search_delay
, seek_cnt
, seek_string
, freq
);
6544 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant
*wpa_s
,
6545 struct wpa_scan_results
*scan_res
)
6547 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
6549 if (wpa_s
->p2p_scan_work
) {
6550 struct wpa_radio_work
*work
= wpa_s
->p2p_scan_work
;
6551 wpa_s
->p2p_scan_work
= NULL
;
6552 radio_work_done(work
);
6555 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6559 * Indicate that results have been processed so that the P2P module can
6560 * continue pending tasks.
6562 p2p_scan_res_handled(wpa_s
->global
->p2p
);
6566 static void wpas_p2p_stop_find_oper(struct wpa_supplicant
*wpa_s
)
6568 wpas_p2p_clear_pending_action_tx(wpa_s
);
6569 wpa_s
->p2p_long_listen
= 0;
6570 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
6571 eloop_cancel_timeout(wpas_p2p_join_scan
, wpa_s
, NULL
);
6573 if (wpa_s
->global
->p2p
)
6574 p2p_stop_find(wpa_s
->global
->p2p
);
6576 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_handler
) {
6577 wpa_printf(MSG_DEBUG
,
6578 "P2P: Do not consider the scan results after stop_find");
6579 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore_search
;
6584 void wpas_p2p_stop_find(struct wpa_supplicant
*wpa_s
)
6586 wpas_p2p_stop_find_oper(wpa_s
);
6587 if (!wpa_s
->global
->pending_group_iface_for_p2ps
)
6588 wpas_p2p_remove_pending_group_interface(wpa_s
);
6592 static void wpas_p2p_long_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
6594 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
6595 wpa_s
->p2p_long_listen
= 0;
6599 int wpas_p2p_listen(struct wpa_supplicant
*wpa_s
, unsigned int timeout
)
6603 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6606 wpa_supplicant_cancel_sched_scan(wpa_s
);
6607 wpas_p2p_clear_pending_action_tx(wpa_s
);
6611 * This is a request for unlimited Listen state. However, at
6612 * least for now, this is mapped to a Listen state for one
6617 eloop_cancel_timeout(wpas_p2p_long_listen_timeout
, wpa_s
, NULL
);
6618 wpa_s
->p2p_long_listen
= 0;
6621 * Stop previous find/listen operation to avoid trying to request a new
6622 * remain-on-channel operation while the driver is still running the
6625 if (wpa_s
->global
->p2p
)
6626 p2p_stop_find(wpa_s
->global
->p2p
);
6628 res
= wpas_p2p_listen_start(wpa_s
, timeout
* 1000);
6629 if (res
== 0 && timeout
* 1000 > wpa_s
->max_remain_on_chan
) {
6630 wpa_s
->p2p_long_listen
= timeout
* 1000;
6631 eloop_register_timeout(timeout
, 0,
6632 wpas_p2p_long_listen_timeout
,
6640 int wpas_p2p_assoc_req_ie(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
,
6641 u8
*buf
, size_t len
, int p2p_group
)
6643 struct wpabuf
*p2p_ie
;
6646 if (wpa_s
->global
->p2p_disabled
)
6649 * Advertize mandatory cross connection capability even on
6650 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6652 if (wpa_s
->conf
->p2p_disabled
&& p2p_group
)
6654 if (wpa_s
->global
->p2p
== NULL
)
6659 p2p_ie
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
6660 ret
= p2p_assoc_req_ie(wpa_s
->global
->p2p
, bss
->bssid
, buf
, len
,
6662 wpabuf_free(p2p_ie
);
6668 int wpas_p2p_probe_req_rx(struct wpa_supplicant
*wpa_s
, const u8
*addr
,
6669 const u8
*dst
, const u8
*bssid
,
6670 const u8
*ie
, size_t ie_len
,
6671 unsigned int rx_freq
, int ssi_signal
)
6673 if (wpa_s
->global
->p2p_disabled
)
6675 if (wpa_s
->global
->p2p
== NULL
)
6678 switch (p2p_probe_req_rx(wpa_s
->global
->p2p
, addr
, dst
, bssid
,
6679 ie
, ie_len
, rx_freq
)) {
6680 case P2P_PREQ_NOT_P2P
:
6681 wpas_notify_preq(wpa_s
, addr
, dst
, bssid
, ie
, ie_len
,
6684 case P2P_PREQ_MALFORMED
:
6685 case P2P_PREQ_NOT_LISTEN
:
6686 case P2P_PREQ_NOT_PROCESSED
:
6687 default: /* make gcc happy */
6689 case P2P_PREQ_PROCESSED
:
6695 void wpas_p2p_rx_action(struct wpa_supplicant
*wpa_s
, const u8
*da
,
6696 const u8
*sa
, const u8
*bssid
,
6697 u8 category
, const u8
*data
, size_t len
, int freq
)
6699 if (wpa_s
->global
->p2p_disabled
)
6701 if (wpa_s
->global
->p2p
== NULL
)
6704 p2p_rx_action(wpa_s
->global
->p2p
, da
, sa
, bssid
, category
, data
, len
,
6709 void wpas_p2p_scan_ie(struct wpa_supplicant
*wpa_s
, struct wpabuf
*ies
)
6711 if (wpa_s
->global
->p2p_disabled
)
6713 if (wpa_s
->global
->p2p
== NULL
)
6716 p2p_scan_ie(wpa_s
->global
->p2p
, ies
, NULL
);
6720 static void wpas_p2p_group_deinit(struct wpa_supplicant
*wpa_s
)
6722 p2p_group_deinit(wpa_s
->p2p_group
);
6723 wpa_s
->p2p_group
= NULL
;
6725 wpa_s
->ap_configured_cb
= NULL
;
6726 wpa_s
->ap_configured_cb_ctx
= NULL
;
6727 wpa_s
->ap_configured_cb_data
= NULL
;
6728 wpa_s
->connect_without_scan
= NULL
;
6732 int wpas_p2p_reject(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
6734 wpa_s
->p2p_long_listen
= 0;
6736 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6739 return p2p_reject(wpa_s
->global
->p2p
, addr
);
6743 /* Invite to reinvoke a persistent group */
6744 int wpas_p2p_invite(struct wpa_supplicant
*wpa_s
, const u8
*peer_addr
,
6745 struct wpa_ssid
*ssid
, const u8
*go_dev_addr
, int freq
,
6746 int vht_center_freq2
, int ht40
, int vht
, int max_chwidth
,
6749 enum p2p_invite_role role
;
6753 int no_pref_freq_given
= pref_freq
== 0;
6754 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
6756 wpa_s
->global
->p2p_invite_group
= NULL
;
6758 os_memcpy(wpa_s
->p2p_auth_invite
, peer_addr
, ETH_ALEN
);
6760 os_memset(wpa_s
->p2p_auth_invite
, 0, ETH_ALEN
);
6762 wpa_s
->p2p_persistent_go_freq
= freq
;
6763 wpa_s
->p2p_go_ht40
= !!ht40
;
6764 wpa_s
->p2p_go_vht
= !!vht
;
6765 wpa_s
->p2p_go_max_oper_chwidth
= max_chwidth
;
6766 wpa_s
->p2p_go_vht_center_freq2
= vht_center_freq2
;
6767 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6768 role
= P2P_INVITE_ROLE_GO
;
6769 if (peer_addr
== NULL
) {
6770 wpa_printf(MSG_DEBUG
, "P2P: Missing peer "
6771 "address in invitation command");
6774 if (wpas_p2p_create_iface(wpa_s
)) {
6775 if (wpas_p2p_add_group_interface(wpa_s
,
6776 WPA_IF_P2P_GO
) < 0) {
6777 wpa_printf(MSG_ERROR
, "P2P: Failed to "
6778 "allocate a new interface for the "
6782 bssid
= wpa_s
->pending_interface_addr
;
6784 bssid
= wpa_s
->own_addr
;
6786 role
= P2P_INVITE_ROLE_CLIENT
;
6787 peer_addr
= ssid
->bssid
;
6789 wpa_s
->pending_invite_ssid_id
= ssid
->id
;
6791 size
= P2P_MAX_PREF_CHANNELS
;
6792 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6793 role
== P2P_INVITE_ROLE_GO
,
6794 pref_freq_list
, &size
);
6798 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6801 p2p_set_own_pref_freq_list(wpa_s
->global
->p2p
, pref_freq_list
, size
);
6803 if (wpa_s
->parent
->conf
->p2p_ignore_shared_freq
&&
6804 no_pref_freq_given
&& pref_freq
> 0 &&
6805 wpa_s
->num_multichan_concurrent
> 1 &&
6806 wpas_p2p_num_unused_channels(wpa_s
) > 0) {
6807 wpa_printf(MSG_DEBUG
, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6813 * Stop any find/listen operations before invitation and possibly
6814 * connection establishment.
6816 wpas_p2p_stop_find_oper(wpa_s
);
6818 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6819 ssid
->ssid
, ssid
->ssid_len
, force_freq
, go_dev_addr
,
6824 /* Invite to join an active group */
6825 int wpas_p2p_invite_group(struct wpa_supplicant
*wpa_s
, const char *ifname
,
6826 const u8
*peer_addr
, const u8
*go_dev_addr
)
6828 struct wpa_global
*global
= wpa_s
->global
;
6829 enum p2p_invite_role role
;
6831 struct wpa_ssid
*ssid
;
6833 int freq
= 0, force_freq
= 0, pref_freq
= 0;
6835 unsigned int pref_freq_list
[P2P_MAX_PREF_CHANNELS
], size
;
6837 wpa_s
->p2p_persistent_go_freq
= 0;
6838 wpa_s
->p2p_go_ht40
= 0;
6839 wpa_s
->p2p_go_vht
= 0;
6840 wpa_s
->p2p_go_vht_center_freq2
= 0;
6841 wpa_s
->p2p_go_max_oper_chwidth
= 0;
6843 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
6844 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
6847 if (wpa_s
== NULL
) {
6848 wpa_printf(MSG_DEBUG
, "P2P: Interface '%s' not found", ifname
);
6852 ssid
= wpa_s
->current_ssid
;
6854 wpa_printf(MSG_DEBUG
, "P2P: No current SSID to use for "
6859 wpa_s
->global
->p2p_invite_group
= wpa_s
;
6860 persistent
= ssid
->p2p_persistent_group
&&
6861 wpas_p2p_get_persistent(wpa_s
->parent
, peer_addr
,
6862 ssid
->ssid
, ssid
->ssid_len
);
6864 if (ssid
->mode
== WPAS_MODE_P2P_GO
) {
6865 role
= P2P_INVITE_ROLE_ACTIVE_GO
;
6866 bssid
= wpa_s
->own_addr
;
6867 if (go_dev_addr
== NULL
)
6868 go_dev_addr
= wpa_s
->global
->p2p_dev_addr
;
6869 freq
= ssid
->frequency
;
6871 role
= P2P_INVITE_ROLE_CLIENT
;
6872 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
) {
6873 wpa_printf(MSG_DEBUG
, "P2P: Not associated - cannot "
6874 "invite to current group");
6877 bssid
= wpa_s
->bssid
;
6878 if (go_dev_addr
== NULL
&&
6879 !is_zero_ether_addr(wpa_s
->go_dev_addr
))
6880 go_dev_addr
= wpa_s
->go_dev_addr
;
6881 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6882 (int) wpa_s
->assoc_freq
;
6884 wpa_s
->parent
->pending_invite_ssid_id
= -1;
6886 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6889 size
= P2P_MAX_PREF_CHANNELS
;
6890 res
= wpas_p2p_setup_freqs(wpa_s
, freq
, &force_freq
, &pref_freq
,
6891 role
== P2P_INVITE_ROLE_ACTIVE_GO
,
6892 pref_freq_list
, &size
);
6895 wpas_p2p_set_own_freq_preference(wpa_s
, force_freq
);
6897 return p2p_invite(wpa_s
->global
->p2p
, peer_addr
, role
, bssid
,
6898 ssid
->ssid
, ssid
->ssid_len
, force_freq
,
6899 go_dev_addr
, persistent
, pref_freq
, -1);
6903 void wpas_p2p_completed(struct wpa_supplicant
*wpa_s
)
6905 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
6906 u8 go_dev_addr
[ETH_ALEN
];
6907 int network_id
= -1;
6913 if (ssid
== NULL
|| ssid
->mode
!= WPAS_MODE_P2P_GROUP_FORMATION
) {
6914 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
6915 wpa_s
->parent
, NULL
);
6918 if (!wpa_s
->show_group_started
|| !ssid
)
6921 wpa_s
->show_group_started
= 0;
6922 if (!wpa_s
->p2p_go_group_formation_completed
&&
6923 wpa_s
->global
->p2p_group_formation
== wpa_s
) {
6924 wpa_dbg(wpa_s
, MSG_DEBUG
,
6925 "P2P: Marking group formation completed on client on data connection");
6926 wpa_s
->p2p_go_group_formation_completed
= 1;
6927 wpa_s
->global
->p2p_group_formation
= NULL
;
6928 wpa_s
->p2p_in_provisioning
= 0;
6929 wpa_s
->p2p_in_invitation
= 0;
6932 os_memset(go_dev_addr
, 0, ETH_ALEN
);
6933 if (ssid
->bssid_set
)
6934 os_memcpy(go_dev_addr
, ssid
->bssid
, ETH_ALEN
);
6935 persistent
= wpas_p2p_persistent_group(wpa_s
, go_dev_addr
, ssid
->ssid
,
6937 os_memcpy(wpa_s
->go_dev_addr
, go_dev_addr
, ETH_ALEN
);
6939 if (wpa_s
->global
->p2p_group_formation
== wpa_s
)
6940 wpa_s
->global
->p2p_group_formation
= NULL
;
6942 freq
= wpa_s
->current_bss
? wpa_s
->current_bss
->freq
:
6943 (int) wpa_s
->assoc_freq
;
6946 if (wpa_sm_get_p2p_ip_addr(wpa_s
->wpa
, ip
) == 0) {
6949 res
= os_snprintf(ip_addr
, sizeof(ip_addr
),
6950 " ip_addr=%u.%u.%u.%u "
6951 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6952 ip
[0], ip
[1], ip
[2], ip
[3],
6953 ip
[4], ip
[5], ip
[6], ip
[7],
6954 ip
[8], ip
[9], ip
[10], ip
[11]);
6955 if (os_snprintf_error(sizeof(ip_addr
), res
))
6959 wpas_p2p_group_started(wpa_s
, 0, ssid
, freq
,
6960 ssid
->passphrase
== NULL
&& ssid
->psk_set
?
6962 ssid
->passphrase
, go_dev_addr
, persistent
,
6966 network_id
= wpas_p2p_store_persistent_group(wpa_s
->parent
,
6969 network_id
= ssid
->id
;
6970 wpas_notify_p2p_group_started(wpa_s
, ssid
, network_id
, 1);
6974 int wpas_p2p_presence_req(struct wpa_supplicant
*wpa_s
, u32 duration1
,
6975 u32 interval1
, u32 duration2
, u32 interval2
)
6979 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
6982 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
||
6983 wpa_s
->current_ssid
== NULL
||
6984 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
6987 ret
= p2p_presence_req(wpa_s
->global
->p2p
, wpa_s
->bssid
,
6988 wpa_s
->own_addr
, wpa_s
->assoc_freq
,
6989 duration1
, interval1
, duration2
, interval2
);
6991 wpa_s
->waiting_presence_resp
= 1;
6997 int wpas_p2p_ext_listen(struct wpa_supplicant
*wpa_s
, unsigned int period
,
6998 unsigned int interval
)
7000 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7003 return p2p_ext_listen(wpa_s
->global
->p2p
, period
, interval
);
7007 static int wpas_p2p_is_client(struct wpa_supplicant
*wpa_s
)
7009 if (wpa_s
->current_ssid
== NULL
) {
7011 * current_ssid can be cleared when P2P client interface gets
7012 * disconnected, so assume this interface was used as P2P
7017 return wpa_s
->current_ssid
->p2p_group
&&
7018 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
;
7022 static void wpas_p2p_group_idle_timeout(void *eloop_ctx
, void *timeout_ctx
)
7024 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7026 if (wpa_s
->conf
->p2p_group_idle
== 0 && !wpas_p2p_is_client(wpa_s
)) {
7027 wpa_printf(MSG_DEBUG
, "P2P: Ignore group idle timeout - "
7032 wpa_printf(MSG_DEBUG
, "P2P: Group idle timeout reached - terminate "
7034 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_IDLE_TIMEOUT
);
7038 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant
*wpa_s
)
7042 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
7043 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
7045 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
7048 timeout
= wpa_s
->conf
->p2p_group_idle
;
7049 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
&&
7050 (timeout
== 0 || timeout
> P2P_MAX_CLIENT_IDLE
))
7051 timeout
= P2P_MAX_CLIENT_IDLE
;
7057 if (wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
)
7058 timeout
= 0; /* special client mode no-timeout */
7063 if (wpa_s
->p2p_in_provisioning
) {
7065 * Use the normal group formation timeout during the
7066 * provisioning phase to avoid terminating this process too
7067 * early due to group idle timeout.
7069 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
7070 "during provisioning");
7074 if (wpa_s
->show_group_started
) {
7076 * Use the normal group formation timeout between the end of
7077 * the provisioning phase and completion of 4-way handshake to
7078 * avoid terminating this process too early due to group idle
7081 wpa_printf(MSG_DEBUG
, "P2P: Do not use P2P group idle timeout "
7082 "while waiting for initial 4-way handshake to "
7087 wpa_printf(MSG_DEBUG
, "P2P: Set P2P group idle timeout to %u seconds",
7089 eloop_register_timeout(timeout
, 0, wpas_p2p_group_idle_timeout
,
7094 /* Returns 1 if the interface was removed */
7095 int wpas_p2p_deauth_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
7096 u16 reason_code
, const u8
*ie
, size_t ie_len
,
7097 int locally_generated
)
7099 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7102 if (!locally_generated
)
7103 p2p_deauth_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
7106 if (reason_code
== WLAN_REASON_DEAUTH_LEAVING
&& !locally_generated
&&
7107 wpa_s
->current_ssid
&&
7108 wpa_s
->current_ssid
->p2p_group
&&
7109 wpa_s
->current_ssid
->mode
== WPAS_MODE_INFRA
) {
7110 wpa_printf(MSG_DEBUG
, "P2P: GO indicated that the P2P Group "
7111 "session is ending");
7112 if (wpas_p2p_group_delete(wpa_s
,
7113 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
)
7122 void wpas_p2p_disassoc_notif(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
7123 u16 reason_code
, const u8
*ie
, size_t ie_len
,
7124 int locally_generated
)
7126 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7129 if (!locally_generated
)
7130 p2p_disassoc_notif(wpa_s
->global
->p2p
, bssid
, reason_code
, ie
,
7135 void wpas_p2p_update_config(struct wpa_supplicant
*wpa_s
)
7137 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
7142 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
))
7145 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_NAME
)
7146 p2p_set_dev_name(p2p
, wpa_s
->conf
->device_name
);
7148 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_TYPE
)
7149 p2p_set_pri_dev_type(p2p
, wpa_s
->conf
->device_type
);
7152 (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_CONFIG_METHODS
))
7153 p2p_set_config_methods(p2p
, wpa_s
->wps
->config_methods
);
7155 if (wpa_s
->wps
&& (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_UUID
))
7156 p2p_set_uuid(p2p
, wpa_s
->wps
->uuid
);
7158 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_WPS_STRING
) {
7159 p2p_set_manufacturer(p2p
, wpa_s
->conf
->manufacturer
);
7160 p2p_set_model_name(p2p
, wpa_s
->conf
->model_name
);
7161 p2p_set_model_number(p2p
, wpa_s
->conf
->model_number
);
7162 p2p_set_serial_number(p2p
, wpa_s
->conf
->serial_number
);
7165 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_SEC_DEVICE_TYPE
)
7166 p2p_set_sec_dev_types(p2p
,
7167 (void *) wpa_s
->conf
->sec_device_type
,
7168 wpa_s
->conf
->num_sec_device_types
);
7170 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_VENDOR_EXTENSION
) {
7172 p2p_remove_wps_vendor_extensions(p2p
);
7173 for (i
= 0; i
< MAX_WPS_VENDOR_EXT
; i
++) {
7174 if (wpa_s
->conf
->wps_vendor_ext
[i
] == NULL
)
7176 p2p_add_wps_vendor_extension(
7177 p2p
, wpa_s
->conf
->wps_vendor_ext
[i
]);
7181 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
7182 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
7184 country
[0] = wpa_s
->conf
->country
[0];
7185 country
[1] = wpa_s
->conf
->country
[1];
7187 p2p_set_country(p2p
, country
);
7190 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_SSID_POSTFIX
) {
7191 p2p_set_ssid_postfix(p2p
, (u8
*) wpa_s
->conf
->p2p_ssid_postfix
,
7192 wpa_s
->conf
->p2p_ssid_postfix
?
7193 os_strlen(wpa_s
->conf
->p2p_ssid_postfix
) :
7197 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_INTRA_BSS
)
7198 p2p_set_intra_bss_dist(p2p
, wpa_s
->conf
->p2p_intra_bss
);
7200 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_LISTEN_CHANNEL
) {
7201 u8 reg_class
, channel
;
7206 if (wpa_s
->conf
->p2p_listen_reg_class
&&
7207 wpa_s
->conf
->p2p_listen_channel
) {
7208 reg_class
= wpa_s
->conf
->p2p_listen_reg_class
;
7209 channel
= wpa_s
->conf
->p2p_listen_channel
;
7214 * Pick one of the social channels randomly as the
7217 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
7220 channel
= 1 + (r
% 3) * 5;
7223 ret
= p2p_set_listen_channel(p2p
, reg_class
, channel
,
7226 wpa_printf(MSG_ERROR
, "P2P: Own listen channel update "
7229 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_OPER_CHANNEL
) {
7230 u8 op_reg_class
, op_channel
, cfg_op_channel
;
7233 if (wpa_s
->conf
->p2p_oper_reg_class
&&
7234 wpa_s
->conf
->p2p_oper_channel
) {
7235 op_reg_class
= wpa_s
->conf
->p2p_oper_reg_class
;
7236 op_channel
= wpa_s
->conf
->p2p_oper_channel
;
7241 * Use random operation channel from (1, 6, 11)
7242 *if no other preference is indicated.
7244 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
7247 op_channel
= 1 + (r
% 3) * 5;
7250 ret
= p2p_set_oper_channel(p2p
, op_reg_class
, op_channel
,
7253 wpa_printf(MSG_ERROR
, "P2P: Own oper channel update "
7257 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PREF_CHAN
) {
7258 if (p2p_set_pref_chan(p2p
, wpa_s
->conf
->num_p2p_pref_chan
,
7259 wpa_s
->conf
->p2p_pref_chan
) < 0) {
7260 wpa_printf(MSG_ERROR
, "P2P: Preferred channel list "
7264 if (p2p_set_no_go_freq(p2p
, &wpa_s
->conf
->p2p_no_go_freq
) < 0) {
7265 wpa_printf(MSG_ERROR
, "P2P: No GO channel list "
7270 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_P2P_PASSPHRASE_LEN
)
7271 p2p_set_passphrase_len(p2p
, wpa_s
->conf
->p2p_passphrase_len
);
7275 int wpas_p2p_set_noa(struct wpa_supplicant
*wpa_s
, u8 count
, int start
,
7278 if (!wpa_s
->ap_iface
)
7280 return hostapd_p2p_set_noa(wpa_s
->ap_iface
->bss
[0], count
, start
,
7285 int wpas_p2p_set_cross_connect(struct wpa_supplicant
*wpa_s
, int enabled
)
7287 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7290 wpa_s
->global
->cross_connection
= enabled
;
7291 p2p_set_cross_connect(wpa_s
->global
->p2p
, enabled
);
7294 struct wpa_supplicant
*iface
;
7296 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
7298 if (iface
->cross_connect_enabled
== 0)
7301 iface
->cross_connect_enabled
= 0;
7302 iface
->cross_connect_in_use
= 0;
7303 wpa_msg_global(iface
->parent
, MSG_INFO
,
7304 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
7306 iface
->cross_connect_uplink
);
7314 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant
*uplink
)
7316 struct wpa_supplicant
*iface
;
7318 if (!uplink
->global
->cross_connection
)
7321 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
7322 if (!iface
->cross_connect_enabled
)
7324 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
7327 if (iface
->ap_iface
== NULL
)
7329 if (iface
->cross_connect_in_use
)
7332 iface
->cross_connect_in_use
= 1;
7333 wpa_msg_global(iface
->parent
, MSG_INFO
,
7334 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
7335 iface
->ifname
, iface
->cross_connect_uplink
);
7340 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant
*uplink
)
7342 struct wpa_supplicant
*iface
;
7344 for (iface
= uplink
->global
->ifaces
; iface
; iface
= iface
->next
) {
7345 if (!iface
->cross_connect_enabled
)
7347 if (os_strcmp(uplink
->ifname
, iface
->cross_connect_uplink
) !=
7350 if (!iface
->cross_connect_in_use
)
7353 wpa_msg_global(iface
->parent
, MSG_INFO
,
7354 P2P_EVENT_CROSS_CONNECT_DISABLE
"%s %s",
7355 iface
->ifname
, iface
->cross_connect_uplink
);
7356 iface
->cross_connect_in_use
= 0;
7361 void wpas_p2p_notif_connected(struct wpa_supplicant
*wpa_s
)
7363 if (wpa_s
->ap_iface
|| wpa_s
->current_ssid
== NULL
||
7364 wpa_s
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
7365 wpa_s
->cross_connect_disallowed
)
7366 wpas_p2p_disable_cross_connect(wpa_s
);
7368 wpas_p2p_enable_cross_connect(wpa_s
);
7369 if (!wpa_s
->ap_iface
&&
7370 eloop_cancel_timeout(wpas_p2p_group_idle_timeout
, wpa_s
, NULL
) > 0)
7371 wpa_printf(MSG_DEBUG
, "P2P: Cancelled P2P group idle timeout");
7375 void wpas_p2p_notif_disconnected(struct wpa_supplicant
*wpa_s
)
7377 wpas_p2p_disable_cross_connect(wpa_s
);
7378 if (!wpa_s
->ap_iface
&&
7379 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout
,
7381 wpas_p2p_set_group_idle_timeout(wpa_s
);
7385 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant
*wpa_s
)
7387 struct wpa_supplicant
*iface
;
7389 if (!wpa_s
->global
->cross_connection
)
7392 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
7395 if (iface
->drv_flags
&
7396 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)
7398 if ((iface
->drv_flags
& WPA_DRIVER_FLAGS_P2P_CAPABLE
) &&
7399 iface
!= wpa_s
->parent
)
7402 wpa_s
->cross_connect_enabled
= 1;
7403 os_strlcpy(wpa_s
->cross_connect_uplink
, iface
->ifname
,
7404 sizeof(wpa_s
->cross_connect_uplink
));
7405 wpa_printf(MSG_DEBUG
, "P2P: Enable cross connection from "
7406 "%s to %s whenever uplink is available",
7407 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
7409 if (iface
->ap_iface
|| iface
->current_ssid
== NULL
||
7410 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
||
7411 iface
->cross_connect_disallowed
||
7412 iface
->wpa_state
!= WPA_COMPLETED
)
7415 wpa_s
->cross_connect_in_use
= 1;
7416 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
7417 P2P_EVENT_CROSS_CONNECT_ENABLE
"%s %s",
7418 wpa_s
->ifname
, wpa_s
->cross_connect_uplink
);
7424 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant
*wpa_s
)
7426 if (wpa_s
->p2p_group_interface
!= P2P_GROUP_INTERFACE_CLIENT
&&
7427 !wpa_s
->p2p_in_provisioning
)
7428 return 0; /* not P2P client operation */
7430 wpa_printf(MSG_DEBUG
, "P2P: Terminate connection due to WPS PBC "
7432 if (wpa_s
!= wpa_s
->parent
)
7433 wpa_msg_ctrl(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_OVERLAP
);
7434 wpas_p2p_group_formation_failed(wpa_s
, 0);
7439 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx
, void *timeout_ctx
)
7441 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
7442 wpas_p2p_notif_pbc_overlap(wpa_s
);
7446 void wpas_p2p_update_channel_list(struct wpa_supplicant
*wpa_s
,
7447 enum wpas_p2p_channel_update_trig trig
)
7449 struct p2p_channels chan
, cli_chan
;
7450 struct wpa_used_freq_data
*freqs
= NULL
;
7451 unsigned int num
= wpa_s
->num_multichan_concurrent
;
7453 if (wpa_s
->global
== NULL
|| wpa_s
->global
->p2p
== NULL
)
7456 freqs
= os_calloc(num
, sizeof(struct wpa_used_freq_data
));
7460 num
= get_shared_radio_freqs_data(wpa_s
, freqs
, num
);
7462 os_memset(&chan
, 0, sizeof(chan
));
7463 os_memset(&cli_chan
, 0, sizeof(cli_chan
));
7464 if (wpas_p2p_setup_channels(wpa_s
, &chan
, &cli_chan
)) {
7465 wpa_printf(MSG_ERROR
, "P2P: Failed to update supported "
7470 p2p_update_channel_list(wpa_s
->global
->p2p
, &chan
, &cli_chan
);
7472 wpas_p2p_optimize_listen_channel(wpa_s
, freqs
, num
);
7475 * The used frequencies map changed, so it is possible that a GO is
7476 * using a channel that is no longer valid for P2P use. It is also
7477 * possible that due to policy consideration, it would be preferable to
7478 * move it to a frequency already used by other station interfaces.
7480 wpas_p2p_consider_moving_gos(wpa_s
, freqs
, num
, trig
);
7486 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant
*wpa_s
,
7487 struct wpa_scan_results
*scan_res
)
7489 wpa_printf(MSG_DEBUG
, "P2P: Ignore scan results");
7493 int wpas_p2p_cancel(struct wpa_supplicant
*wpa_s
)
7495 struct wpa_global
*global
= wpa_s
->global
;
7499 if (global
->p2p
== NULL
)
7502 wpa_printf(MSG_DEBUG
, "P2P: Request to cancel group formation");
7504 if (wpa_s
->pending_interface_name
[0] &&
7505 !is_zero_ether_addr(wpa_s
->pending_interface_addr
))
7508 peer
= p2p_get_go_neg_peer(global
->p2p
);
7510 wpa_printf(MSG_DEBUG
, "P2P: Unauthorize pending GO Neg peer "
7511 MACSTR
, MAC2STR(peer
));
7512 p2p_unauthorize(global
->p2p
, peer
);
7516 if (wpa_s
->scan_res_handler
== wpas_p2p_scan_res_join
) {
7517 wpa_printf(MSG_DEBUG
, "P2P: Stop pending scan for join");
7518 wpa_s
->scan_res_handler
= wpas_p2p_scan_res_ignore
;
7522 if (wpa_s
->pending_pd_before_join
) {
7523 wpa_printf(MSG_DEBUG
, "P2P: Stop pending PD before join");
7524 wpa_s
->pending_pd_before_join
= 0;
7528 wpas_p2p_stop_find(wpa_s
);
7530 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
7531 if (wpa_s
== global
->p2p_group_formation
&&
7532 (wpa_s
->p2p_in_provisioning
||
7533 wpa_s
->parent
->pending_interface_type
==
7534 WPA_IF_P2P_CLIENT
)) {
7535 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in group "
7536 "formation found - cancelling",
7539 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7540 wpa_s
->parent
, NULL
);
7541 if (wpa_s
->p2p_in_provisioning
) {
7542 wpas_group_formation_completed(wpa_s
, 0, 0);
7545 wpas_p2p_group_delete(wpa_s
,
7546 P2P_GROUP_REMOVAL_REQUESTED
);
7548 } else if (wpa_s
->p2p_in_invitation
) {
7549 wpa_printf(MSG_DEBUG
, "P2P: Interface %s in invitation found - cancelling",
7552 wpas_p2p_group_formation_failed(wpa_s
, 0);
7558 wpa_printf(MSG_DEBUG
, "P2P: No ongoing group formation found");
7566 void wpas_p2p_interface_unavailable(struct wpa_supplicant
*wpa_s
)
7568 if (wpa_s
->current_ssid
== NULL
|| !wpa_s
->current_ssid
->p2p_group
)
7571 wpa_printf(MSG_DEBUG
, "P2P: Remove group due to driver resource not "
7572 "being available anymore");
7573 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_UNAVAILABLE
);
7577 void wpas_p2p_update_best_channels(struct wpa_supplicant
*wpa_s
,
7578 int freq_24
, int freq_5
, int freq_overall
)
7580 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
7583 p2p_set_best_channels(p2p
, freq_24
, freq_5
, freq_overall
);
7587 int wpas_p2p_unauthorize(struct wpa_supplicant
*wpa_s
, const char *addr
)
7590 struct p2p_data
*p2p
= wpa_s
->global
->p2p
;
7595 if (hwaddr_aton(addr
, peer
))
7598 return p2p_unauthorize(p2p
, peer
);
7603 * wpas_p2p_disconnect - Disconnect from a P2P Group
7604 * @wpa_s: Pointer to wpa_supplicant data
7605 * Returns: 0 on success, -1 on failure
7607 * This can be used to disconnect from a group in which the local end is a P2P
7608 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7609 * virtual network interface was created for this group, that interface will be
7610 * removed. Otherwise, only the configured P2P group network will be removed
7611 * from the interface.
7613 int wpas_p2p_disconnect(struct wpa_supplicant
*wpa_s
)
7619 return wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_REQUESTED
) < 0 ?
7624 int wpas_p2p_in_progress(struct wpa_supplicant
*wpa_s
)
7628 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
7631 ret
= p2p_in_progress(wpa_s
->global
->p2p
);
7634 * Check whether there is an ongoing WPS provisioning step (or
7635 * other parts of group formation) on another interface since
7636 * p2p_in_progress() does not report this to avoid issues for
7637 * scans during such provisioning step.
7639 if (wpa_s
->global
->p2p_group_formation
&&
7640 wpa_s
->global
->p2p_group_formation
!= wpa_s
) {
7641 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Another interface (%s) "
7642 "in group formation",
7643 wpa_s
->global
->p2p_group_formation
->ifname
);
7648 if (!ret
&& wpa_s
->global
->p2p_go_wait_client
.sec
) {
7649 struct os_reltime now
;
7650 os_get_reltime(&now
);
7651 if (os_reltime_expired(&now
, &wpa_s
->global
->p2p_go_wait_client
,
7652 P2P_MAX_INITIAL_CONN_WAIT_GO
)) {
7653 /* Wait for the first client has expired */
7654 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
7656 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Waiting for initial client connection during group formation");
7665 void wpas_p2p_network_removed(struct wpa_supplicant
*wpa_s
,
7666 struct wpa_ssid
*ssid
)
7668 if (wpa_s
->p2p_in_provisioning
&& ssid
->p2p_group
&&
7669 eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7670 wpa_s
->parent
, NULL
) > 0) {
7672 * Remove the network by scheduling the group formation
7673 * timeout to happen immediately. The teardown code
7674 * needs to be scheduled to run asynch later so that we
7675 * don't delete data from under ourselves unexpectedly.
7676 * Calling wpas_p2p_group_formation_timeout directly
7677 * causes a series of crashes in WPS failure scenarios.
7679 wpa_printf(MSG_DEBUG
, "P2P: Canceled group formation due to "
7680 "P2P group network getting removed");
7681 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout
,
7682 wpa_s
->parent
, NULL
);
7687 struct wpa_ssid
* wpas_p2p_get_persistent(struct wpa_supplicant
*wpa_s
,
7688 const u8
*addr
, const u8
*ssid
,
7694 for (s
= wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
7695 if (s
->disabled
!= 2)
7698 (ssid_len
!= s
->ssid_len
||
7699 os_memcmp(ssid
, s
->ssid
, ssid_len
) != 0))
7702 if (s
->mode
== WPAS_MODE_P2P_GO
)
7706 if (os_memcmp(s
->bssid
, addr
, ETH_ALEN
) == 0)
7707 return s
; /* peer is GO in the persistent group */
7708 if (s
->mode
!= WPAS_MODE_P2P_GO
|| s
->p2p_client_list
== NULL
)
7710 for (i
= 0; i
< s
->num_p2p_clients
; i
++) {
7711 if (os_memcmp(s
->p2p_client_list
+ i
* 2 * ETH_ALEN
,
7712 addr
, ETH_ALEN
) == 0)
7713 return s
; /* peer is P2P client in persistent
7722 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant
*wpa_s
,
7725 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout
,
7726 wpa_s
->parent
, NULL
) > 0) {
7728 * This can happen if WPS provisioning step is not terminated
7729 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7730 * peer was able to connect, there is no need to time out group
7731 * formation after this, though. In addition, this is used with
7732 * the initial connection wait on the GO as a separate formation
7733 * timeout and as such, expected to be hit after the initial WPS
7734 * provisioning step.
7736 wpa_printf(MSG_DEBUG
, "P2P: Canceled P2P group formation timeout on data connection");
7738 if (!wpa_s
->p2p_go_group_formation_completed
&&
7739 !wpa_s
->group_formation_reported
) {
7741 * GO has not yet notified group formation success since
7742 * the WPS step was not completed cleanly. Do that
7743 * notification now since the P2P Client was able to
7744 * connect and as such, must have received the
7745 * credential from the WPS step.
7747 if (wpa_s
->global
->p2p
)
7748 p2p_wps_success_cb(wpa_s
->global
->p2p
, addr
);
7749 wpas_group_formation_completed(wpa_s
, 1, 0);
7752 if (!wpa_s
->p2p_go_group_formation_completed
) {
7753 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Marking group formation completed on GO on first data connection");
7754 wpa_s
->p2p_go_group_formation_completed
= 1;
7755 wpa_s
->global
->p2p_group_formation
= NULL
;
7756 wpa_s
->p2p_in_provisioning
= 0;
7757 wpa_s
->p2p_in_invitation
= 0;
7759 wpa_s
->global
->p2p_go_wait_client
.sec
= 0;
7762 wpas_p2p_add_persistent_group_client(wpa_s
, addr
);
7766 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant
*wpa_s
,
7769 struct wpa_supplicant
*group
= wpa_s
;
7772 if (wpa_s
->global
->p2p_group_formation
)
7773 group
= wpa_s
->global
->p2p_group_formation
;
7774 wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
7775 offchannel_send_action_done(wpa_s
);
7777 ret
= wpas_p2p_group_delete(group
, P2P_GROUP_REMOVAL_SILENT
);
7778 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Fall back to GO Negotiation");
7779 wpas_p2p_connect(wpa_s
, wpa_s
->pending_join_dev_addr
, wpa_s
->p2p_pin
,
7780 wpa_s
->p2p_wps_method
, wpa_s
->p2p_persistent_group
, 0,
7781 0, 0, wpa_s
->p2p_go_intent
, wpa_s
->p2p_connect_freq
,
7782 wpa_s
->p2p_go_vht_center_freq2
,
7783 wpa_s
->p2p_persistent_id
,
7784 wpa_s
->p2p_pd_before_go_neg
,
7787 wpa_s
->p2p_go_max_oper_chwidth
, NULL
, 0);
7792 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant
*wpa_s
)
7796 if (!wpa_s
->p2p_fallback_to_go_neg
||
7797 wpa_s
->p2p_in_provisioning
<= 5)
7800 if (wpas_p2p_peer_go(wpa_s
, wpa_s
->pending_join_dev_addr
) > 0)
7801 return 0; /* peer operating as a GO */
7803 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: GO not found for p2p_connect-auto - "
7804 "fallback to GO Negotiation");
7805 wpa_msg_global(wpa_s
->parent
, MSG_INFO
, P2P_EVENT_FALLBACK_TO_GO_NEG
7806 "reason=GO-not-found");
7807 res
= wpas_p2p_fallback_to_go_neg(wpa_s
, 1);
7809 return res
== 1 ? 2 : 1;
7813 unsigned int wpas_p2p_search_delay(struct wpa_supplicant
*wpa_s
)
7815 struct wpa_supplicant
*ifs
;
7817 if (wpa_s
->wpa_state
> WPA_SCANNING
) {
7818 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search delay due to "
7819 "concurrent operation",
7820 wpa_s
->conf
->p2p_search_delay
);
7821 return wpa_s
->conf
->p2p_search_delay
;
7824 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
7826 if (ifs
!= wpa_s
&& ifs
->wpa_state
> WPA_SCANNING
) {
7827 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Use %u ms search "
7828 "delay due to concurrent operation on "
7830 wpa_s
->conf
->p2p_search_delay
,
7832 return wpa_s
->conf
->p2p_search_delay
;
7840 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant
*wpa_s
,
7841 struct wpa_ssid
*s
, const u8
*addr
,
7844 struct psk_list_entry
*psk
, *tmp
;
7847 dl_list_for_each_safe(psk
, tmp
, &s
->psk_list
, struct psk_list_entry
,
7849 if ((iface_addr
&& !psk
->p2p
&&
7850 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0) ||
7851 (!iface_addr
&& psk
->p2p
&&
7852 os_memcmp(addr
, psk
->addr
, ETH_ALEN
) == 0)) {
7853 wpa_dbg(wpa_s
, MSG_DEBUG
,
7854 "P2P: Remove persistent group PSK list entry for "
7856 MAC2STR(psk
->addr
), psk
->p2p
);
7857 dl_list_del(&psk
->list
);
7867 void wpas_p2p_new_psk_cb(struct wpa_supplicant
*wpa_s
, const u8
*mac_addr
,
7868 const u8
*p2p_dev_addr
,
7869 const u8
*psk
, size_t psk_len
)
7871 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
7872 struct wpa_ssid
*persistent
;
7873 struct psk_list_entry
*p
, *last
;
7875 if (psk_len
!= sizeof(p
->psk
))
7879 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
7880 " p2p_dev_addr=" MACSTR
,
7881 MAC2STR(mac_addr
), MAC2STR(p2p_dev_addr
));
7882 if (is_zero_ether_addr(p2p_dev_addr
))
7883 p2p_dev_addr
= NULL
;
7885 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New PSK for addr=" MACSTR
,
7889 if (ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
7890 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: new_psk_cb during group formation");
7891 /* To be added to persistent group once created */
7892 if (wpa_s
->global
->add_psk
== NULL
) {
7893 wpa_s
->global
->add_psk
= os_zalloc(sizeof(*p
));
7894 if (wpa_s
->global
->add_psk
== NULL
)
7897 p
= wpa_s
->global
->add_psk
;
7900 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7903 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7905 os_memcpy(p
->psk
, psk
, psk_len
);
7909 if (ssid
->mode
!= WPAS_MODE_P2P_GO
|| !ssid
->p2p_persistent_group
) {
7910 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Ignore new_psk_cb on not-persistent GO");
7914 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, NULL
, ssid
->ssid
,
7917 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not find persistent group information to store the new PSK");
7921 p
= os_zalloc(sizeof(*p
));
7926 os_memcpy(p
->addr
, p2p_dev_addr
, ETH_ALEN
);
7929 os_memcpy(p
->addr
, mac_addr
, ETH_ALEN
);
7931 os_memcpy(p
->psk
, psk
, psk_len
);
7933 if (dl_list_len(&persistent
->psk_list
) > P2P_MAX_STORED_CLIENTS
&&
7934 (last
= dl_list_last(&persistent
->psk_list
,
7935 struct psk_list_entry
, list
))) {
7936 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove oldest PSK entry for "
7937 MACSTR
" (p2p=%u) to make room for a new one",
7938 MAC2STR(last
->addr
), last
->p2p
);
7939 dl_list_del(&last
->list
);
7943 wpas_p2p_remove_psk_entry(wpa_s
->parent
, persistent
,
7944 p2p_dev_addr
? p2p_dev_addr
: mac_addr
,
7945 p2p_dev_addr
== NULL
);
7947 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for p2p_dev_addr="
7948 MACSTR
, MAC2STR(p2p_dev_addr
));
7950 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Add new PSK for addr=" MACSTR
,
7953 dl_list_add(&persistent
->psk_list
, &p
->list
);
7955 if (wpa_s
->parent
->conf
->update_config
&&
7956 wpa_config_write(wpa_s
->parent
->confname
, wpa_s
->parent
->conf
))
7957 wpa_printf(MSG_DEBUG
, "P2P: Failed to update configuration");
7961 static void wpas_p2p_remove_psk(struct wpa_supplicant
*wpa_s
,
7962 struct wpa_ssid
*s
, const u8
*addr
,
7967 res
= wpas_p2p_remove_psk_entry(wpa_s
, s
, addr
, iface_addr
);
7968 if (res
> 0 && wpa_s
->conf
->update_config
&&
7969 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
))
7970 wpa_dbg(wpa_s
, MSG_DEBUG
,
7971 "P2P: Failed to update configuration");
7975 static void wpas_p2p_remove_client_go(struct wpa_supplicant
*wpa_s
,
7976 const u8
*peer
, int iface_addr
)
7978 struct hostapd_data
*hapd
;
7979 struct hostapd_wpa_psk
*psk
, *prev
, *rem
;
7980 struct sta_info
*sta
;
7982 if (wpa_s
->ap_iface
== NULL
|| wpa_s
->current_ssid
== NULL
||
7983 wpa_s
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
)
7986 /* Remove per-station PSK entry */
7987 hapd
= wpa_s
->ap_iface
->bss
[0];
7989 psk
= hapd
->conf
->ssid
.wpa_psk
;
7991 if ((iface_addr
&& os_memcmp(peer
, psk
->addr
, ETH_ALEN
) == 0) ||
7993 os_memcmp(peer
, psk
->p2p_dev_addr
, ETH_ALEN
) == 0)) {
7994 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove operating group PSK entry for "
7995 MACSTR
" iface_addr=%d",
7996 MAC2STR(peer
), iface_addr
);
7998 prev
->next
= psk
->next
;
8000 hapd
->conf
->ssid
.wpa_psk
= psk
->next
;
8010 /* Disconnect from group */
8012 sta
= ap_get_sta(hapd
, peer
);
8014 sta
= ap_get_sta_p2p(hapd
, peer
);
8016 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disconnect peer " MACSTR
8017 " (iface_addr=%d) from group",
8018 MAC2STR(peer
), iface_addr
);
8019 hostapd_drv_sta_deauth(hapd
, sta
->addr
,
8020 WLAN_REASON_DEAUTH_LEAVING
);
8021 ap_sta_deauthenticate(hapd
, sta
, WLAN_REASON_DEAUTH_LEAVING
);
8026 void wpas_p2p_remove_client(struct wpa_supplicant
*wpa_s
, const u8
*peer
,
8030 struct wpa_supplicant
*w
;
8031 struct wpa_supplicant
*p2p_wpa_s
= wpa_s
->global
->p2p_init_wpa_s
;
8033 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Remove client " MACSTR
, MAC2STR(peer
));
8035 /* Remove from any persistent group */
8036 for (s
= p2p_wpa_s
->conf
->ssid
; s
; s
= s
->next
) {
8037 if (s
->disabled
!= 2 || s
->mode
!= WPAS_MODE_P2P_GO
)
8040 wpas_remove_persistent_peer(p2p_wpa_s
, s
, peer
, 0);
8041 wpas_p2p_remove_psk(p2p_wpa_s
, s
, peer
, iface_addr
);
8044 /* Remove from any operating group */
8045 for (w
= wpa_s
->global
->ifaces
; w
; w
= w
->next
)
8046 wpas_p2p_remove_client_go(w
, peer
, iface_addr
);
8050 static void wpas_p2p_psk_failure_removal(void *eloop_ctx
, void *timeout_ctx
)
8052 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8053 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_PSK_FAILURE
);
8057 static void wpas_p2p_group_freq_conflict(void *eloop_ctx
, void *timeout_ctx
)
8059 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8061 wpa_printf(MSG_DEBUG
, "P2P: Frequency conflict - terminate group");
8062 wpas_p2p_group_delete(wpa_s
, P2P_GROUP_REMOVAL_FREQ_CONFLICT
);
8066 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant
*wpa_s
, int freq
,
8067 struct wpa_ssid
*ssid
)
8069 struct wpa_supplicant
*iface
;
8071 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
8072 if (!iface
->current_ssid
||
8073 iface
->current_ssid
->frequency
== freq
||
8074 (iface
->p2p_group_interface
== NOT_P2P_GROUP_INTERFACE
&&
8075 !iface
->current_ssid
->p2p_group
))
8078 /* Remove the connection with least priority */
8079 if (!wpas_is_p2p_prioritized(iface
)) {
8080 /* STA connection has priority over existing
8081 * P2P connection, so remove the interface. */
8082 wpa_printf(MSG_DEBUG
, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8083 eloop_register_timeout(0, 0,
8084 wpas_p2p_group_freq_conflict
,
8086 /* If connection in progress is P2P connection, do not
8087 * proceed for the connection. */
8093 /* P2P connection has priority, disable the STA network
8095 wpa_supplicant_disable_network(wpa_s
->global
->ifaces
,
8097 wpa_msg(wpa_s
->global
->ifaces
, MSG_INFO
,
8098 WPA_EVENT_FREQ_CONFLICT
" id=%d", ssid
->id
);
8099 os_memset(wpa_s
->global
->ifaces
->pending_bssid
, 0,
8101 /* If P2P connection is in progress, continue
8114 int wpas_p2p_4way_hs_failed(struct wpa_supplicant
*wpa_s
)
8116 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
8118 if (ssid
== NULL
|| !ssid
->p2p_group
)
8121 if (wpa_s
->p2p_last_4way_hs_fail
&&
8122 wpa_s
->p2p_last_4way_hs_fail
== ssid
) {
8123 u8 go_dev_addr
[ETH_ALEN
];
8124 struct wpa_ssid
*persistent
;
8126 if (wpas_p2p_persistent_group(wpa_s
, go_dev_addr
,
8128 ssid
->ssid_len
) <= 0) {
8129 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8133 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8134 MACSTR
, MAC2STR(go_dev_addr
));
8135 persistent
= wpas_p2p_get_persistent(wpa_s
->parent
, go_dev_addr
,
8138 if (persistent
== NULL
|| persistent
->mode
!= WPAS_MODE_INFRA
) {
8139 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No matching persistent group stored");
8142 wpa_msg_global(wpa_s
->parent
, MSG_INFO
,
8143 P2P_EVENT_PERSISTENT_PSK_FAIL
"%d",
8146 wpa_s
->p2p_last_4way_hs_fail
= NULL
;
8148 * Remove the group from a timeout to avoid issues with caller
8149 * continuing to use the interface if this is on a P2P group
8152 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal
,
8157 wpa_s
->p2p_last_4way_hs_fail
= ssid
;
8162 #ifdef CONFIG_WPS_NFC
8164 static struct wpabuf
* wpas_p2p_nfc_handover(int ndef
, struct wpabuf
*wsc
,
8172 wpa_printf(MSG_DEBUG
, "P2P: No p2p buffer for handover");
8176 wsc_len
= wsc
? wpabuf_len(wsc
) : 0;
8177 ret
= wpabuf_alloc(2 + wsc_len
+ 2 + wpabuf_len(p2p
));
8184 wpabuf_put_be16(ret
, wsc_len
);
8186 wpabuf_put_buf(ret
, wsc
);
8187 wpabuf_put_be16(ret
, wpabuf_len(p2p
));
8188 wpabuf_put_buf(ret
, p2p
);
8192 wpa_hexdump_buf(MSG_DEBUG
,
8193 "P2P: Generated NFC connection handover message", ret
);
8197 tmp
= ndef_build_p2p(ret
);
8200 wpa_printf(MSG_DEBUG
, "P2P: Failed to NDEF encapsulate handover request");
8210 static int wpas_p2p_cli_freq(struct wpa_supplicant
*wpa_s
,
8211 struct wpa_ssid
**ssid
, u8
*go_dev_addr
)
8213 struct wpa_supplicant
*iface
;
8216 os_memset(go_dev_addr
, 0, ETH_ALEN
);
8219 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
8220 if (iface
->wpa_state
< WPA_ASSOCIATING
||
8221 iface
->current_ssid
== NULL
|| iface
->assoc_freq
== 0 ||
8222 !iface
->current_ssid
->p2p_group
||
8223 iface
->current_ssid
->mode
!= WPAS_MODE_INFRA
)
8226 *ssid
= iface
->current_ssid
;
8228 os_memcpy(go_dev_addr
, iface
->go_dev_addr
, ETH_ALEN
);
8229 return iface
->assoc_freq
;
8235 struct wpabuf
* wpas_p2p_nfc_handover_req(struct wpa_supplicant
*wpa_s
,
8238 struct wpabuf
*wsc
, *p2p
;
8239 struct wpa_ssid
*ssid
;
8240 u8 go_dev_addr
[ETH_ALEN
];
8241 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
8243 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
) {
8244 wpa_printf(MSG_DEBUG
, "P2P: P2P disabled - cannot build handover request");
8248 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
8249 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
8250 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0) {
8251 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: No DH key available for handover request");
8255 if (cli_freq
== 0) {
8256 wsc
= wps_build_nfc_handover_req_p2p(
8257 wpa_s
->parent
->wps
, wpa_s
->conf
->wps_nfc_dh_pubkey
);
8260 p2p
= p2p_build_nfc_handover_req(wpa_s
->global
->p2p
, cli_freq
,
8261 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
8262 ssid
? ssid
->ssid_len
: 0);
8264 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
8268 struct wpabuf
* wpas_p2p_nfc_handover_sel(struct wpa_supplicant
*wpa_s
,
8271 struct wpabuf
*wsc
, *p2p
;
8272 struct wpa_ssid
*ssid
;
8273 u8 go_dev_addr
[ETH_ALEN
];
8274 int cli_freq
= wpas_p2p_cli_freq(wpa_s
, &ssid
, go_dev_addr
);
8276 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8279 if (!tag
&& wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
8280 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
8281 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
8284 if (cli_freq
== 0) {
8285 wsc
= wps_build_nfc_handover_sel_p2p(
8287 tag
? wpa_s
->conf
->wps_nfc_dev_pw_id
:
8288 DEV_PW_NFC_CONNECTION_HANDOVER
,
8289 wpa_s
->conf
->wps_nfc_dh_pubkey
,
8290 tag
? wpa_s
->conf
->wps_nfc_dev_pw
: NULL
);
8293 p2p
= p2p_build_nfc_handover_sel(wpa_s
->global
->p2p
, cli_freq
,
8294 go_dev_addr
, ssid
? ssid
->ssid
: NULL
,
8295 ssid
? ssid
->ssid_len
: 0);
8297 return wpas_p2p_nfc_handover(ndef
, wsc
, p2p
);
8301 static int wpas_p2p_nfc_join_group(struct wpa_supplicant
*wpa_s
,
8302 struct p2p_nfc_params
*params
)
8304 wpa_printf(MSG_DEBUG
, "P2P: Initiate join-group based on NFC "
8305 "connection handover (freq=%d)",
8308 if (params
->go_freq
&& params
->go_ssid_len
) {
8309 wpa_s
->p2p_wps_method
= WPS_NFC
;
8310 wpa_s
->pending_join_wps_method
= WPS_NFC
;
8311 os_memset(wpa_s
->pending_join_iface_addr
, 0, ETH_ALEN
);
8312 os_memcpy(wpa_s
->pending_join_dev_addr
, params
->go_dev_addr
,
8314 return wpas_p2p_join_start(wpa_s
, params
->go_freq
,
8316 params
->go_ssid_len
);
8319 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
8320 WPS_NFC
, 0, 0, 1, 0, wpa_s
->conf
->p2p_go_intent
,
8321 params
->go_freq
, wpa_s
->p2p_go_vht_center_freq2
,
8322 -1, 0, 1, 1, wpa_s
->p2p_go_max_oper_chwidth
,
8323 params
->go_ssid_len
? params
->go_ssid
: NULL
,
8324 params
->go_ssid_len
);
8328 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant
*wpa_s
,
8329 struct p2p_nfc_params
*params
, int tag
)
8331 int res
, persistent
;
8332 struct wpa_ssid
*ssid
;
8334 wpa_printf(MSG_DEBUG
, "P2P: Authorize join-group based on NFC "
8335 "connection handover");
8336 for (wpa_s
= wpa_s
->global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
8337 ssid
= wpa_s
->current_ssid
;
8340 if (ssid
->mode
!= WPAS_MODE_P2P_GO
)
8342 if (wpa_s
->ap_iface
== NULL
)
8346 if (wpa_s
== NULL
) {
8347 wpa_printf(MSG_DEBUG
, "P2P: Could not find GO interface");
8351 if (wpa_s
->parent
->p2p_oob_dev_pw_id
!=
8352 DEV_PW_NFC_CONNECTION_HANDOVER
&&
8353 !wpa_s
->parent
->p2p_oob_dev_pw
) {
8354 wpa_printf(MSG_DEBUG
, "P2P: No NFC Dev Pw known");
8357 res
= wpas_ap_wps_add_nfc_pw(
8358 wpa_s
, wpa_s
->parent
->p2p_oob_dev_pw_id
,
8359 wpa_s
->parent
->p2p_oob_dev_pw
,
8360 wpa_s
->parent
->p2p_peer_oob_pk_hash_known
?
8361 wpa_s
->parent
->p2p_peer_oob_pubkey_hash
: NULL
);
8366 wpa_printf(MSG_DEBUG
, "P2P: Negotiated handover - wait for peer to join without invitation");
8370 if (!params
->peer
||
8371 !(params
->peer
->dev_capab
& P2P_DEV_CAPAB_INVITATION_PROCEDURE
))
8374 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invite peer " MACSTR
8375 " to join", MAC2STR(params
->peer
->p2p_device_addr
));
8377 wpa_s
->global
->p2p_invite_group
= wpa_s
;
8378 persistent
= ssid
->p2p_persistent_group
&&
8379 wpas_p2p_get_persistent(wpa_s
->parent
,
8380 params
->peer
->p2p_device_addr
,
8381 ssid
->ssid
, ssid
->ssid_len
);
8382 wpa_s
->parent
->pending_invite_ssid_id
= -1;
8384 return p2p_invite(wpa_s
->global
->p2p
, params
->peer
->p2p_device_addr
,
8385 P2P_INVITE_ROLE_ACTIVE_GO
, wpa_s
->own_addr
,
8386 ssid
->ssid
, ssid
->ssid_len
, ssid
->frequency
,
8387 wpa_s
->global
->p2p_dev_addr
, persistent
, 0,
8388 wpa_s
->parent
->p2p_oob_dev_pw_id
);
8392 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant
*wpa_s
,
8393 struct p2p_nfc_params
*params
,
8396 wpa_printf(MSG_DEBUG
, "P2P: Initiate GO Negotiation based on NFC "
8397 "connection handover");
8398 return wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
8399 WPS_NFC
, 0, 0, 0, 0, wpa_s
->conf
->p2p_go_intent
,
8400 forced_freq
, wpa_s
->p2p_go_vht_center_freq2
,
8401 -1, 0, 1, 1, wpa_s
->p2p_go_max_oper_chwidth
,
8406 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant
*wpa_s
,
8407 struct p2p_nfc_params
*params
,
8412 wpa_printf(MSG_DEBUG
, "P2P: Authorize GO Negotiation based on NFC "
8413 "connection handover");
8414 res
= wpas_p2p_connect(wpa_s
, params
->peer
->p2p_device_addr
, NULL
,
8415 WPS_NFC
, 0, 0, 0, 1, wpa_s
->conf
->p2p_go_intent
,
8416 forced_freq
, wpa_s
->p2p_go_vht_center_freq2
,
8417 -1, 0, 1, 1, wpa_s
->p2p_go_max_oper_chwidth
,
8422 res
= wpas_p2p_listen(wpa_s
, 60);
8424 p2p_unauthorize(wpa_s
->global
->p2p
,
8425 params
->peer
->p2p_device_addr
);
8432 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant
*wpa_s
,
8433 const struct wpabuf
*data
,
8434 int sel
, int tag
, int forced_freq
)
8436 const u8
*pos
, *end
;
8438 struct p2p_nfc_params params
;
8441 os_memset(¶ms
, 0, sizeof(params
));
8444 wpa_hexdump_buf(MSG_DEBUG
, "P2P: Received NFC tag payload", data
);
8446 pos
= wpabuf_head(data
);
8447 end
= pos
+ wpabuf_len(data
);
8449 if (end
- pos
< 2) {
8450 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of WSC "
8454 len
= WPA_GET_BE16(pos
);
8456 if (len
> end
- pos
) {
8457 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for WSC "
8461 params
.wsc_attr
= pos
;
8462 params
.wsc_len
= len
;
8465 if (end
- pos
< 2) {
8466 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for Length of P2P "
8470 len
= WPA_GET_BE16(pos
);
8472 if (len
> end
- pos
) {
8473 wpa_printf(MSG_DEBUG
, "P2P: Not enough data for P2P "
8477 params
.p2p_attr
= pos
;
8478 params
.p2p_len
= len
;
8481 wpa_hexdump(MSG_DEBUG
, "P2P: WSC attributes",
8482 params
.wsc_attr
, params
.wsc_len
);
8483 wpa_hexdump(MSG_DEBUG
, "P2P: P2P attributes",
8484 params
.p2p_attr
, params
.p2p_len
);
8486 wpa_hexdump(MSG_DEBUG
,
8487 "P2P: Ignored extra data after P2P attributes",
8491 res
= p2p_process_nfc_connection_handover(wpa_s
->global
->p2p
, ¶ms
);
8495 if (params
.next_step
== NO_ACTION
)
8498 if (params
.next_step
== BOTH_GO
) {
8499 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_BOTH_GO
"peer=" MACSTR
,
8500 MAC2STR(params
.peer
->p2p_device_addr
));
8504 if (params
.next_step
== PEER_CLIENT
) {
8505 if (!is_zero_ether_addr(params
.go_dev_addr
)) {
8506 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
8507 "peer=" MACSTR
" freq=%d go_dev_addr=" MACSTR
8509 MAC2STR(params
.peer
->p2p_device_addr
),
8511 MAC2STR(params
.go_dev_addr
),
8512 wpa_ssid_txt(params
.go_ssid
,
8513 params
.go_ssid_len
));
8515 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_PEER_CLIENT
8516 "peer=" MACSTR
" freq=%d",
8517 MAC2STR(params
.peer
->p2p_device_addr
),
8523 if (wpas_p2p_cli_freq(wpa_s
, NULL
, NULL
)) {
8524 wpa_msg(wpa_s
, MSG_INFO
, P2P_EVENT_NFC_WHILE_CLIENT
"peer="
8525 MACSTR
, MAC2STR(params
.peer
->p2p_device_addr
));
8529 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
8530 wpa_s
->p2p_oob_dev_pw
= NULL
;
8532 if (params
.oob_dev_pw_len
< WPS_OOB_PUBKEY_HASH_LEN
+ 2) {
8533 wpa_printf(MSG_DEBUG
, "P2P: No peer OOB Dev Pw "
8538 id
= WPA_GET_BE16(params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
);
8539 wpa_printf(MSG_DEBUG
, "P2P: Peer OOB Dev Pw %u", id
);
8540 wpa_hexdump(MSG_DEBUG
, "P2P: Peer OOB Public Key hash",
8541 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
8542 os_memcpy(wpa_s
->p2p_peer_oob_pubkey_hash
,
8543 params
.oob_dev_pw
, WPS_OOB_PUBKEY_HASH_LEN
);
8544 wpa_s
->p2p_peer_oob_pk_hash_known
= 1;
8548 wpa_printf(MSG_DEBUG
, "P2P: Static handover - invalid "
8549 "peer OOB Device Password Id %u", id
);
8552 wpa_printf(MSG_DEBUG
, "P2P: Static handover - use peer OOB "
8553 "Device Password Id %u", id
);
8554 wpa_hexdump_key(MSG_DEBUG
, "P2P: Peer OOB Device Password",
8555 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
8556 params
.oob_dev_pw_len
-
8557 WPS_OOB_PUBKEY_HASH_LEN
- 2);
8558 wpa_s
->p2p_oob_dev_pw_id
= id
;
8559 wpa_s
->p2p_oob_dev_pw
= wpabuf_alloc_copy(
8560 params
.oob_dev_pw
+ WPS_OOB_PUBKEY_HASH_LEN
+ 2,
8561 params
.oob_dev_pw_len
-
8562 WPS_OOB_PUBKEY_HASH_LEN
- 2);
8563 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
8566 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
&&
8567 wps_nfc_gen_dh(&wpa_s
->conf
->wps_nfc_dh_pubkey
,
8568 &wpa_s
->conf
->wps_nfc_dh_privkey
) < 0)
8571 wpa_printf(MSG_DEBUG
, "P2P: Using abbreviated WPS handshake "
8572 "without Device Password");
8573 wpa_s
->p2p_oob_dev_pw_id
= DEV_PW_NFC_CONNECTION_HANDOVER
;
8576 switch (params
.next_step
) {
8580 /* already covered above */
8583 return wpas_p2p_nfc_join_group(wpa_s
, ¶ms
);
8585 return wpas_p2p_nfc_auth_join(wpa_s
, ¶ms
, tag
);
8587 return wpas_p2p_nfc_init_go_neg(wpa_s
, ¶ms
, forced_freq
);
8589 /* TODO: use own OOB Dev Pw */
8590 return wpas_p2p_nfc_resp_go_neg(wpa_s
, ¶ms
, forced_freq
);
8597 int wpas_p2p_nfc_tag_process(struct wpa_supplicant
*wpa_s
,
8598 const struct wpabuf
*data
, int forced_freq
)
8600 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8603 return wpas_p2p_nfc_connection_handover(wpa_s
, data
, 1, 1, forced_freq
);
8607 int wpas_p2p_nfc_report_handover(struct wpa_supplicant
*wpa_s
, int init
,
8608 const struct wpabuf
*req
,
8609 const struct wpabuf
*sel
, int forced_freq
)
8614 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
8617 wpa_printf(MSG_DEBUG
, "NFC: P2P connection handover reported");
8619 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Req",
8620 wpabuf_head(req
), wpabuf_len(req
));
8621 wpa_hexdump_ascii(MSG_DEBUG
, "NFC: Sel",
8622 wpabuf_head(sel
), wpabuf_len(sel
));
8624 wpa_printf(MSG_DEBUG
, "NFC: Forced freq %d", forced_freq
);
8625 tmp
= ndef_parse_p2p(init
? sel
: req
);
8627 wpa_printf(MSG_DEBUG
, "P2P: Could not parse NDEF");
8631 ret
= wpas_p2p_nfc_connection_handover(wpa_s
, tmp
, init
, 0,
8639 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant
*wpa_s
, int enabled
)
8642 int go_intent
= wpa_s
->conf
->p2p_go_intent
;
8643 struct wpa_supplicant
*iface
;
8645 if (wpa_s
->global
->p2p
== NULL
)
8649 wpa_printf(MSG_DEBUG
, "P2P: Disable use of own NFC Tag");
8650 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
)
8652 if (!iface
->ap_iface
)
8654 hostapd_wps_nfc_token_disable(iface
->ap_iface
->bss
[0]);
8656 p2p_set_authorized_oob_dev_pw_id(wpa_s
->global
->p2p
, 0,
8658 if (wpa_s
->p2p_nfc_tag_enabled
)
8659 wpas_p2p_remove_pending_group_interface(wpa_s
);
8660 wpa_s
->p2p_nfc_tag_enabled
= 0;
8664 if (wpa_s
->global
->p2p_disabled
)
8667 if (wpa_s
->conf
->wps_nfc_dh_pubkey
== NULL
||
8668 wpa_s
->conf
->wps_nfc_dh_privkey
== NULL
||
8669 wpa_s
->conf
->wps_nfc_dev_pw
== NULL
||
8670 wpa_s
->conf
->wps_nfc_dev_pw_id
< 0x10) {
8671 wpa_printf(MSG_DEBUG
, "P2P: NFC password token not configured "
8672 "to allow static handover cases");
8676 wpa_printf(MSG_DEBUG
, "P2P: Enable use of own NFC Tag");
8678 wpa_s
->p2p_oob_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8679 wpabuf_free(wpa_s
->p2p_oob_dev_pw
);
8680 wpa_s
->p2p_oob_dev_pw
= wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8681 if (wpa_s
->p2p_oob_dev_pw
== NULL
)
8683 wpa_s
->p2p_peer_oob_pk_hash_known
= 0;
8685 if (wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_GO
||
8686 wpa_s
->p2p_group_interface
== P2P_GROUP_INTERFACE_CLIENT
) {
8688 * P2P Group Interface present and the command came on group
8689 * interface, so enable the token for the current interface.
8691 wpa_s
->create_p2p_iface
= 0;
8693 wpa_s
->create_p2p_iface
= wpas_p2p_create_iface(wpa_s
);
8696 if (wpa_s
->create_p2p_iface
) {
8697 enum wpa_driver_if_type iftype
;
8698 /* Prepare to add a new interface for the group */
8699 iftype
= WPA_IF_P2P_GROUP
;
8700 if (go_intent
== 15)
8701 iftype
= WPA_IF_P2P_GO
;
8702 if (wpas_p2p_add_group_interface(wpa_s
, iftype
) < 0) {
8703 wpa_printf(MSG_ERROR
, "P2P: Failed to allocate a new "
8704 "interface for the group");
8708 if_addr
= wpa_s
->pending_interface_addr
;
8710 if_addr
= wpa_s
->own_addr
;
8712 wpa_s
->p2p_nfc_tag_enabled
= enabled
;
8714 for (iface
= wpa_s
->global
->ifaces
; iface
; iface
= iface
->next
) {
8715 struct hostapd_data
*hapd
;
8716 if (iface
->ap_iface
== NULL
)
8718 hapd
= iface
->ap_iface
->bss
[0];
8719 wpabuf_free(hapd
->conf
->wps_nfc_dh_pubkey
);
8720 hapd
->conf
->wps_nfc_dh_pubkey
=
8721 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_pubkey
);
8722 wpabuf_free(hapd
->conf
->wps_nfc_dh_privkey
);
8723 hapd
->conf
->wps_nfc_dh_privkey
=
8724 wpabuf_dup(wpa_s
->conf
->wps_nfc_dh_privkey
);
8725 wpabuf_free(hapd
->conf
->wps_nfc_dev_pw
);
8726 hapd
->conf
->wps_nfc_dev_pw
=
8727 wpabuf_dup(wpa_s
->conf
->wps_nfc_dev_pw
);
8728 hapd
->conf
->wps_nfc_dev_pw_id
= wpa_s
->conf
->wps_nfc_dev_pw_id
;
8730 if (hostapd_wps_nfc_token_enable(iface
->ap_iface
->bss
[0]) < 0) {
8731 wpa_dbg(iface
, MSG_DEBUG
,
8732 "P2P: Failed to enable NFC Tag for GO");
8735 p2p_set_authorized_oob_dev_pw_id(
8736 wpa_s
->global
->p2p
, wpa_s
->conf
->wps_nfc_dev_pw_id
, go_intent
,
8742 #endif /* CONFIG_WPS_NFC */
8745 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant
*wpa_s
,
8746 struct wpa_used_freq_data
*freqs
,
8749 u8 curr_chan
, cand
, chan
;
8753 * If possible, optimize the Listen channel to be a channel that is
8754 * already used by one of the other interfaces.
8756 if (!wpa_s
->conf
->p2p_optimize_listen_chan
)
8759 if (!wpa_s
->current_ssid
|| wpa_s
->wpa_state
!= WPA_COMPLETED
)
8762 curr_chan
= p2p_get_listen_channel(wpa_s
->global
->p2p
);
8763 for (i
= 0, cand
= 0; i
< num
; i
++) {
8764 ieee80211_freq_to_chan(freqs
[i
].freq
, &chan
);
8765 if (curr_chan
== chan
) {
8770 if (chan
== 1 || chan
== 6 || chan
== 11)
8775 wpa_dbg(wpa_s
, MSG_DEBUG
,
8776 "P2P: Update Listen channel to %u based on operating channel",
8778 p2p_set_listen_channel(wpa_s
->global
->p2p
, 81, cand
, 0);
8783 static int wpas_p2p_move_go_csa(struct wpa_supplicant
*wpa_s
)
8785 struct hostapd_config
*conf
;
8786 struct p2p_go_neg_results params
;
8787 struct csa_settings csa_settings
;
8788 struct wpa_ssid
*current_ssid
= wpa_s
->current_ssid
;
8789 int old_freq
= current_ssid
->frequency
;
8792 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_AP_CSA
)) {
8793 wpa_dbg(wpa_s
, MSG_DEBUG
, "CSA is not enabled");
8798 * TODO: This function may not always work correctly. For example,
8799 * when we have a running GO and a BSS on a DFS channel.
8801 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, 0, 0, 0, 0, 0, NULL
)) {
8802 wpa_dbg(wpa_s
, MSG_DEBUG
,
8803 "P2P CSA: Failed to select new frequency for GO");
8807 if (current_ssid
->frequency
== params
.freq
) {
8808 wpa_dbg(wpa_s
, MSG_DEBUG
,
8809 "P2P CSA: Selected same frequency - not moving GO");
8813 conf
= hostapd_config_defaults();
8815 wpa_dbg(wpa_s
, MSG_DEBUG
,
8816 "P2P CSA: Failed to allocate default config");
8820 current_ssid
->frequency
= params
.freq
;
8821 if (wpa_supplicant_conf_ap_ht(wpa_s
, current_ssid
, conf
)) {
8822 wpa_dbg(wpa_s
, MSG_DEBUG
,
8823 "P2P CSA: Failed to create new GO config");
8828 if (conf
->hw_mode
!= wpa_s
->ap_iface
->current_mode
->mode
) {
8829 wpa_dbg(wpa_s
, MSG_DEBUG
,
8830 "P2P CSA: CSA to a different band is not supported");
8835 os_memset(&csa_settings
, 0, sizeof(csa_settings
));
8836 csa_settings
.cs_count
= P2P_GO_CSA_COUNT
;
8837 csa_settings
.block_tx
= P2P_GO_CSA_BLOCK_TX
;
8838 csa_settings
.freq_params
.freq
= params
.freq
;
8839 csa_settings
.freq_params
.sec_channel_offset
= conf
->secondary_channel
;
8840 csa_settings
.freq_params
.ht_enabled
= conf
->ieee80211n
;
8841 csa_settings
.freq_params
.bandwidth
= conf
->secondary_channel
? 40 : 20;
8843 if (conf
->ieee80211ac
) {
8844 int freq1
= 0, freq2
= 0;
8847 if (ieee80211_freq_to_channel_ext(params
.freq
,
8848 conf
->secondary_channel
,
8849 conf
->vht_oper_chwidth
,
8851 NUM_HOSTAPD_MODES
) {
8852 wpa_printf(MSG_ERROR
, "P2P CSA: Bad freq");
8857 if (conf
->vht_oper_centr_freq_seg0_idx
)
8858 freq1
= ieee80211_chan_to_freq(
8860 conf
->vht_oper_centr_freq_seg0_idx
);
8862 if (conf
->vht_oper_centr_freq_seg1_idx
)
8863 freq2
= ieee80211_chan_to_freq(
8865 conf
->vht_oper_centr_freq_seg1_idx
);
8867 if (freq1
< 0 || freq2
< 0) {
8868 wpa_dbg(wpa_s
, MSG_DEBUG
,
8869 "P2P CSA: Selected invalid VHT center freqs");
8874 csa_settings
.freq_params
.vht_enabled
= conf
->ieee80211ac
;
8875 csa_settings
.freq_params
.center_freq1
= freq1
;
8876 csa_settings
.freq_params
.center_freq2
= freq2
;
8878 switch (conf
->vht_oper_chwidth
) {
8879 case VHT_CHANWIDTH_80MHZ
:
8880 case VHT_CHANWIDTH_80P80MHZ
:
8881 csa_settings
.freq_params
.bandwidth
= 80;
8883 case VHT_CHANWIDTH_160MHZ
:
8884 csa_settings
.freq_params
.bandwidth
= 160;
8889 ret
= ap_switch_channel(wpa_s
, &csa_settings
);
8891 current_ssid
->frequency
= old_freq
;
8892 hostapd_config_free(conf
);
8897 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant
*wpa_s
)
8899 struct p2p_go_neg_results params
;
8900 struct wpa_ssid
*current_ssid
= wpa_s
->current_ssid
;
8902 wpa_msg_global(wpa_s
, MSG_INFO
, P2P_EVENT_REMOVE_AND_REFORM_GROUP
);
8904 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Move GO from freq=%d MHz",
8905 current_ssid
->frequency
);
8907 /* Stop the AP functionality */
8908 /* TODO: Should do this in a way that does not indicated to possible
8909 * P2P Clients in the group that the group is terminated. */
8910 wpa_supplicant_ap_deinit(wpa_s
);
8912 /* Reselect the GO frequency */
8913 if (wpas_p2p_init_go_params(wpa_s
, ¶ms
, 0, 0, 0, 0, 0, NULL
)) {
8914 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Failed to reselect freq");
8915 wpas_p2p_group_delete(wpa_s
,
8916 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
);
8919 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: New freq selected for the GO (%u MHz)",
8923 !p2p_supported_freq_go(wpa_s
->global
->p2p
, params
.freq
)) {
8924 wpa_printf(MSG_DEBUG
,
8925 "P2P: Selected freq (%u MHz) is not valid for P2P",
8927 wpas_p2p_group_delete(wpa_s
,
8928 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
);
8932 /* Update the frequency */
8933 current_ssid
->frequency
= params
.freq
;
8934 wpa_s
->connect_without_scan
= current_ssid
;
8935 wpa_s
->reassociate
= 1;
8936 wpa_s
->disconnected
= 0;
8937 wpa_supplicant_req_scan(wpa_s
, 0, 0);
8941 static void wpas_p2p_move_go(void *eloop_ctx
, void *timeout_ctx
)
8943 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8945 if (!wpa_s
->ap_iface
|| !wpa_s
->current_ssid
)
8948 wpas_p2p_go_update_common_freqs(wpa_s
);
8950 /* Do not move GO in the middle of a CSA */
8951 if (hostapd_csa_in_progress(wpa_s
->ap_iface
)) {
8952 wpa_printf(MSG_DEBUG
,
8953 "P2P: CSA is in progress - not moving GO");
8958 * First, try a channel switch flow. If it is not supported or fails,
8959 * take down the GO and bring it up again.
8961 if (wpas_p2p_move_go_csa(wpa_s
) < 0)
8962 wpas_p2p_move_go_no_csa(wpa_s
);
8966 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx
, void *timeout_ctx
)
8968 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
8969 struct wpa_used_freq_data
*freqs
= NULL
;
8970 unsigned int num
= wpa_s
->num_multichan_concurrent
;
8972 freqs
= os_calloc(num
, sizeof(struct wpa_used_freq_data
));
8976 num
= get_shared_radio_freqs_data(wpa_s
, freqs
, num
);
8978 /* Previous attempt to move a GO was not possible -- try again. */
8979 wpas_p2p_consider_moving_gos(wpa_s
, freqs
, num
,
8980 WPAS_P2P_CHANNEL_UPDATE_ANY
);
8987 * Consider moving a GO from its currently used frequency:
8988 * 1. It is possible that due to regulatory consideration the frequency
8989 * can no longer be used and there is a need to evacuate the GO.
8990 * 2. It is possible that due to MCC considerations, it would be preferable
8991 * to move the GO to a channel that is currently used by some other
8992 * station interface.
8994 * In case a frequency that became invalid is once again valid, cancel a
8995 * previously initiated GO frequency change.
8997 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant
*wpa_s
,
8998 struct wpa_used_freq_data
*freqs
,
9001 unsigned int i
, invalid_freq
= 0, policy_move
= 0, flags
= 0;
9002 unsigned int timeout
;
9005 wpas_p2p_go_update_common_freqs(wpa_s
);
9007 freq
= wpa_s
->current_ssid
->frequency
;
9008 for (i
= 0, invalid_freq
= 0; i
< num
; i
++) {
9009 if (freqs
[i
].freq
== freq
) {
9010 flags
= freqs
[i
].flags
;
9012 /* The channel is invalid, must change it */
9013 if (!p2p_supported_freq_go(wpa_s
->global
->p2p
, freq
)) {
9014 wpa_dbg(wpa_s
, MSG_DEBUG
,
9015 "P2P: Freq=%d MHz no longer valid for GO",
9019 } else if (freqs
[i
].flags
== 0) {
9020 /* Freq is not used by any other station interface */
9022 } else if (!p2p_supported_freq(wpa_s
->global
->p2p
,
9024 /* Freq is not valid for P2P use cases */
9026 } else if (wpa_s
->conf
->p2p_go_freq_change_policy
==
9027 P2P_GO_FREQ_MOVE_SCM
) {
9029 } else if (wpa_s
->conf
->p2p_go_freq_change_policy
==
9030 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS
&&
9031 wpas_p2p_go_is_peer_freq(wpa_s
, freqs
[i
].freq
)) {
9033 } else if ((wpa_s
->conf
->p2p_go_freq_change_policy
==
9034 P2P_GO_FREQ_MOVE_SCM_ECSA
) &&
9035 wpas_p2p_go_is_peer_freq(wpa_s
, freqs
[i
].freq
)) {
9036 if (!p2p_get_group_num_members(wpa_s
->p2p_group
)) {
9038 } else if ((wpa_s
->drv_flags
&
9039 WPA_DRIVER_FLAGS_AP_CSA
) &&
9040 wpas_p2p_go_clients_support_ecsa(wpa_s
)) {
9044 * We do not support CSA between bands, so move
9045 * GO only within the same band.
9047 if (wpa_s
->ap_iface
->current_mode
->mode
==
9048 ieee80211_freq_to_chan(freqs
[i
].freq
,
9055 wpa_dbg(wpa_s
, MSG_DEBUG
,
9056 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9057 invalid_freq
, policy_move
, flags
);
9060 * The channel is valid, or we are going to have a policy move, so
9063 if (!invalid_freq
|| policy_move
) {
9064 wpa_dbg(wpa_s
, MSG_DEBUG
,
9065 "P2P: Cancel a GO move from freq=%d MHz", freq
);
9066 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
9068 if (wpas_p2p_in_progress(wpa_s
)) {
9069 wpa_dbg(wpa_s
, MSG_DEBUG
,
9070 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9071 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
,
9073 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY
, 0,
9074 wpas_p2p_reconsider_moving_go
,
9080 if (!invalid_freq
&& (!policy_move
|| flags
!= 0)) {
9081 wpa_dbg(wpa_s
, MSG_DEBUG
,
9082 "P2P: Not initiating a GO frequency change");
9087 * Do not consider moving GO if it is in the middle of a CSA. When the
9088 * CSA is finished this flow should be retriggered.
9090 if (hostapd_csa_in_progress(wpa_s
->ap_iface
)) {
9091 wpa_dbg(wpa_s
, MSG_DEBUG
,
9092 "P2P: Not initiating a GO frequency change - CSA is in progress");
9096 if (invalid_freq
&& !wpas_p2p_disallowed_freq(wpa_s
->global
, freq
))
9097 timeout
= P2P_GO_FREQ_CHANGE_TIME
;
9101 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Move GO from freq=%d MHz in %d secs",
9103 eloop_cancel_timeout(wpas_p2p_move_go
, wpa_s
, NULL
);
9104 eloop_register_timeout(timeout
, 0, wpas_p2p_move_go
, wpa_s
, NULL
);
9108 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant
*wpa_s
,
9109 struct wpa_used_freq_data
*freqs
,
9111 enum wpas_p2p_channel_update_trig trig
)
9113 struct wpa_supplicant
*ifs
;
9115 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go
, ELOOP_ALL_CTX
,
9119 * Travers all the radio interfaces, and for each GO interface, check
9120 * if there is a need to move the GO from the frequency it is using,
9121 * or in case the frequency is valid again, cancel the evacuation flow.
9123 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
9125 if (ifs
->current_ssid
== NULL
||
9126 ifs
->current_ssid
->mode
!= WPAS_MODE_P2P_GO
)
9130 * The GO was just started or completed channel switch, no need
9134 (trig
== WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE
||
9135 trig
== WPAS_P2P_CHANNEL_UPDATE_CS
)) {
9136 wpa_dbg(wpa_s
, MSG_DEBUG
,
9137 "P2P: GO move - schedule re-consideration");
9138 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY
, 0,
9139 wpas_p2p_reconsider_moving_go
,
9144 wpas_p2p_consider_moving_one_go(ifs
, freqs
, num
);
9149 void wpas_p2p_indicate_state_change(struct wpa_supplicant
*wpa_s
)
9151 if (wpa_s
->global
->p2p_disabled
|| wpa_s
->global
->p2p
== NULL
)
9154 wpas_p2p_update_channel_list(wpa_s
,
9155 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE
);
9159 void wpas_p2p_deinit_iface(struct wpa_supplicant
*wpa_s
)
9161 if (wpa_s
== wpa_s
->global
->p2p_init_wpa_s
&& wpa_s
->global
->p2p
) {
9162 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disable P2P since removing "
9163 "the management interface is being removed");
9164 wpas_p2p_deinit_global(wpa_s
->global
);
9169 void wpas_p2p_ap_deinit(struct wpa_supplicant
*wpa_s
)
9171 if (wpa_s
->ap_iface
->bss
)
9172 wpa_s
->ap_iface
->bss
[0]->p2p_group
= NULL
;
9173 wpas_p2p_group_deinit(wpa_s
);