2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_defs.h"
14 #include "common/ieee802_11_common.h"
15 #include "common/wpa_ctrl.h"
16 #include "wps/wps_i.h"
21 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
);
22 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
);
23 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
24 const u8
*sa
, const u8
*data
, size_t len
,
26 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
27 const u8
*sa
, const u8
*data
,
29 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
30 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
34 * p2p_scan recovery timeout
36 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
37 * timeout for this to avoid hitting P2P timeout unnecessarily.
39 #define P2P_SCAN_TIMEOUT 35
42 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
43 * entries will be removed
45 #ifndef P2P_PEER_EXPIRATION_AGE
46 #define P2P_PEER_EXPIRATION_AGE 60
47 #endif /* P2P_PEER_EXPIRATION_AGE */
49 #define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
51 static void p2p_expire_peers(struct p2p_data
*p2p
)
53 struct p2p_device
*dev
, *n
;
54 struct os_reltime now
;
58 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
59 if (dev
->last_seen
.sec
+ P2P_PEER_EXPIRATION_AGE
>= now
.sec
)
62 if (dev
== p2p
->go_neg_peer
) {
64 * GO Negotiation is in progress with the peer, so
65 * don't expire the peer entry until GO Negotiation
71 if (p2p
->cfg
->go_connected
&&
72 p2p
->cfg
->go_connected(p2p
->cfg
->cb_ctx
,
73 dev
->info
.p2p_device_addr
)) {
75 * We are connected as a client to a group in which the
76 * peer is the GO, so do not expire the peer entry.
78 os_get_reltime(&dev
->last_seen
);
82 for (i
= 0; i
< p2p
->num_groups
; i
++) {
83 if (p2p_group_is_client_connected(
84 p2p
->groups
[i
], dev
->info
.p2p_device_addr
))
87 if (i
< p2p
->num_groups
) {
89 * The peer is connected as a client in a group where
90 * we are the GO, so do not expire the peer entry.
92 os_get_reltime(&dev
->last_seen
);
96 p2p_dbg(p2p
, "Expiring old peer entry " MACSTR
,
97 MAC2STR(dev
->info
.p2p_device_addr
));
98 dl_list_del(&dev
->list
);
99 p2p_device_free(p2p
, dev
);
104 static void p2p_expiration_timeout(void *eloop_ctx
, void *timeout_ctx
)
106 struct p2p_data
*p2p
= eloop_ctx
;
107 p2p_expire_peers(p2p
);
108 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL
, 0,
109 p2p_expiration_timeout
, p2p
, NULL
);
113 static const char * p2p_state_txt(int state
)
122 case P2P_CONNECT_LISTEN
:
123 return "CONNECT_LISTEN";
126 case P2P_LISTEN_ONLY
:
127 return "LISTEN_ONLY";
128 case P2P_WAIT_PEER_CONNECT
:
129 return "WAIT_PEER_CONNECT";
130 case P2P_WAIT_PEER_IDLE
:
131 return "WAIT_PEER_IDLE";
132 case P2P_SD_DURING_FIND
:
133 return "SD_DURING_FIND";
134 case P2P_PROVISIONING
:
135 return "PROVISIONING";
136 case P2P_PD_DURING_FIND
:
137 return "PD_DURING_FIND";
140 case P2P_INVITE_LISTEN
:
141 return "INVITE_LISTEN";
148 const char * p2p_get_state_txt(struct p2p_data
*p2p
)
150 return p2p_state_txt(p2p
->state
);
154 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
156 struct p2p_device
*dev
= NULL
;
161 dev
= p2p_get_device(p2p
, addr
);
163 return dev
->wps_prov_info
;
169 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
171 struct p2p_device
*dev
= NULL
;
176 dev
= p2p_get_device(p2p
, addr
);
178 dev
->wps_prov_info
= 0;
182 void p2p_set_state(struct p2p_data
*p2p
, int new_state
)
184 p2p_dbg(p2p
, "State %s -> %s",
185 p2p_state_txt(p2p
->state
), p2p_state_txt(new_state
));
186 p2p
->state
= new_state
;
188 if (new_state
== P2P_IDLE
&& p2p
->pending_channel
) {
189 p2p_dbg(p2p
, "Apply change in listen channel");
190 p2p
->cfg
->reg_class
= p2p
->pending_reg_class
;
191 p2p
->cfg
->channel
= p2p
->pending_channel
;
192 p2p
->pending_reg_class
= 0;
193 p2p
->pending_channel
= 0;
198 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
, unsigned int usec
)
200 p2p_dbg(p2p
, "Set timeout (state=%s): %u.%06u sec",
201 p2p_state_txt(p2p
->state
), sec
, usec
);
202 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
203 eloop_register_timeout(sec
, usec
, p2p_state_timeout
, p2p
, NULL
);
207 void p2p_clear_timeout(struct p2p_data
*p2p
)
209 p2p_dbg(p2p
, "Clear timeout (state=%s)", p2p_state_txt(p2p
->state
));
210 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
214 void p2p_go_neg_failed(struct p2p_data
*p2p
, int status
)
216 struct p2p_go_neg_results res
;
217 struct p2p_device
*peer
= p2p
->go_neg_peer
;
222 p2p_clear_timeout(p2p
);
223 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
224 p2p_set_state(p2p
, P2P_IDLE
);
226 peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
227 peer
->wps_method
= WPS_NOT_READY
;
229 wpabuf_free(peer
->go_neg_conf
);
230 peer
->go_neg_conf
= NULL
;
231 p2p
->go_neg_peer
= NULL
;
233 os_memset(&res
, 0, sizeof(res
));
235 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
236 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
237 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
241 static void p2p_listen_in_find(struct p2p_data
*p2p
, int dev_disc
)
247 p2p_dbg(p2p
, "Starting short listen state (state=%s)",
248 p2p_state_txt(p2p
->state
));
250 if (p2p
->pending_listen_freq
) {
251 /* We have a pending p2p_listen request */
252 p2p_dbg(p2p
, "p2p_listen command pending already");
256 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
258 p2p_dbg(p2p
, "Unknown regulatory class/channel");
262 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
264 tu
= (r
% ((p2p
->max_disc_int
- p2p
->min_disc_int
) + 1) +
265 p2p
->min_disc_int
) * 100;
266 if (p2p
->max_disc_tu
>= 0 && tu
> (unsigned int) p2p
->max_disc_tu
)
267 tu
= p2p
->max_disc_tu
;
268 if (!dev_disc
&& tu
< 100)
269 tu
= 100; /* Need to wait in non-device discovery use cases */
270 if (p2p
->cfg
->max_listen
&& 1024 * tu
/ 1000 > p2p
->cfg
->max_listen
)
271 tu
= p2p
->cfg
->max_listen
* 1000 / 1024;
274 p2p_dbg(p2p
, "Skip listen state since duration was 0 TU");
275 p2p_set_timeout(p2p
, 0, 0);
279 ies
= p2p_build_probe_resp_ies(p2p
);
283 p2p
->pending_listen_freq
= freq
;
284 p2p
->pending_listen_sec
= 0;
285 p2p
->pending_listen_usec
= 1024 * tu
;
287 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, 1024 * tu
/ 1000,
289 p2p_dbg(p2p
, "Failed to start listen mode");
290 p2p
->pending_listen_freq
= 0;
296 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
)
301 p2p_dbg(p2p
, "Going to listen(only) state");
303 if (p2p
->pending_listen_freq
) {
304 /* We have a pending p2p_listen request */
305 p2p_dbg(p2p
, "p2p_listen command pending already");
309 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
311 p2p_dbg(p2p
, "Unknown regulatory class/channel");
315 p2p
->pending_listen_sec
= timeout
/ 1000;
316 p2p
->pending_listen_usec
= (timeout
% 1000) * 1000;
318 if (p2p
->p2p_scan_running
) {
319 if (p2p
->start_after_scan
== P2P_AFTER_SCAN_CONNECT
) {
320 p2p_dbg(p2p
, "p2p_scan running - connect is already pending - skip listen");
323 p2p_dbg(p2p
, "p2p_scan running - delay start of listen state");
324 p2p
->start_after_scan
= P2P_AFTER_SCAN_LISTEN
;
328 ies
= p2p_build_probe_resp_ies(p2p
);
332 p2p
->pending_listen_freq
= freq
;
334 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, timeout
, ies
) < 0) {
335 p2p_dbg(p2p
, "Failed to start listen mode");
336 p2p
->pending_listen_freq
= 0;
342 p2p_set_state(p2p
, P2P_LISTEN_ONLY
);
348 static void p2p_device_clear_reported(struct p2p_data
*p2p
)
350 struct p2p_device
*dev
;
351 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
352 dev
->flags
&= ~P2P_DEV_REPORTED
;
359 * p2p_get_device - Fetch a peer entry
360 * @p2p: P2P module context from p2p_init()
361 * @addr: P2P Device Address of the peer
362 * Returns: Pointer to the device entry or %NULL if not found
364 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
)
366 struct p2p_device
*dev
;
367 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
368 if (os_memcmp(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
) == 0)
376 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
377 * @p2p: P2P module context from p2p_init()
378 * @addr: P2P Interface Address of the peer
379 * Returns: Pointer to the device entry or %NULL if not found
381 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
384 struct p2p_device
*dev
;
385 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
386 if (os_memcmp(dev
->interface_addr
, addr
, ETH_ALEN
) == 0)
394 * p2p_create_device - Create a peer entry
395 * @p2p: P2P module context from p2p_init()
396 * @addr: P2P Device Address of the peer
397 * Returns: Pointer to the device entry or %NULL on failure
399 * If there is already an entry for the peer, it will be returned instead of
400 * creating a new one.
402 static struct p2p_device
* p2p_create_device(struct p2p_data
*p2p
,
405 struct p2p_device
*dev
, *oldest
= NULL
;
408 dev
= p2p_get_device(p2p
, addr
);
412 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
414 if (oldest
== NULL
||
415 os_reltime_before(&dev
->last_seen
, &oldest
->last_seen
))
418 if (count
+ 1 > p2p
->cfg
->max_peers
&& oldest
) {
419 p2p_dbg(p2p
, "Remove oldest peer entry to make room for a new peer");
420 dl_list_del(&oldest
->list
);
421 p2p_device_free(p2p
, oldest
);
424 dev
= os_zalloc(sizeof(*dev
));
427 dl_list_add(&p2p
->devices
, &dev
->list
);
428 os_memcpy(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
);
434 static void p2p_copy_client_info(struct p2p_device
*dev
,
435 struct p2p_client_info
*cli
)
437 os_memcpy(dev
->info
.device_name
, cli
->dev_name
, cli
->dev_name_len
);
438 dev
->info
.device_name
[cli
->dev_name_len
] = '\0';
439 dev
->info
.dev_capab
= cli
->dev_capab
;
440 dev
->info
.config_methods
= cli
->config_methods
;
441 os_memcpy(dev
->info
.pri_dev_type
, cli
->pri_dev_type
, 8);
442 dev
->info
.wps_sec_dev_type_list_len
= 8 * cli
->num_sec_dev_types
;
443 os_memcpy(dev
->info
.wps_sec_dev_type_list
, cli
->sec_dev_types
,
444 dev
->info
.wps_sec_dev_type_list_len
);
448 static int p2p_add_group_clients(struct p2p_data
*p2p
, const u8
*go_dev_addr
,
449 const u8
*go_interface_addr
, int freq
,
450 const u8
*gi
, size_t gi_len
)
452 struct p2p_group_info info
;
454 struct p2p_device
*dev
;
459 if (p2p_group_info_parse(gi
, gi_len
, &info
) < 0)
463 * Clear old data for this group; if the devices are still in the
464 * group, the information will be restored in the loop following this.
466 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
467 if (os_memcmp(dev
->member_in_go_iface
, go_interface_addr
,
469 os_memset(dev
->member_in_go_iface
, 0, ETH_ALEN
);
470 os_memset(dev
->member_in_go_dev
, 0, ETH_ALEN
);
474 for (c
= 0; c
< info
.num_clients
; c
++) {
475 struct p2p_client_info
*cli
= &info
.client
[c
];
476 if (os_memcmp(cli
->p2p_device_addr
, p2p
->cfg
->dev_addr
,
478 continue; /* ignore our own entry */
479 dev
= p2p_get_device(p2p
, cli
->p2p_device_addr
);
481 if (dev
->flags
& (P2P_DEV_GROUP_CLIENT_ONLY
|
482 P2P_DEV_PROBE_REQ_ONLY
)) {
484 * Update information since we have not
485 * received this directly from the client.
487 p2p_copy_client_info(dev
, cli
);
490 * Need to update P2P Client Discoverability
491 * flag since it is valid only in P2P Group
494 dev
->info
.dev_capab
&=
495 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
496 dev
->info
.dev_capab
|=
498 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
500 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
501 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
504 dev
= p2p_create_device(p2p
, cli
->p2p_device_addr
);
507 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
508 p2p_copy_client_info(dev
, cli
);
509 dev
->oper_freq
= freq
;
510 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
,
511 dev
->info
.p2p_device_addr
,
513 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
516 os_memcpy(dev
->interface_addr
, cli
->p2p_interface_addr
,
518 os_get_reltime(&dev
->last_seen
);
519 os_memcpy(dev
->member_in_go_dev
, go_dev_addr
, ETH_ALEN
);
520 os_memcpy(dev
->member_in_go_iface
, go_interface_addr
,
528 static void p2p_copy_wps_info(struct p2p_data
*p2p
, struct p2p_device
*dev
,
529 int probe_req
, const struct p2p_message
*msg
)
531 os_memcpy(dev
->info
.device_name
, msg
->device_name
,
532 sizeof(dev
->info
.device_name
));
534 if (msg
->manufacturer
&&
535 msg
->manufacturer_len
< sizeof(dev
->info
.manufacturer
)) {
536 os_memset(dev
->info
.manufacturer
, 0,
537 sizeof(dev
->info
.manufacturer
));
538 os_memcpy(dev
->info
.manufacturer
, msg
->manufacturer
,
539 msg
->manufacturer_len
);
542 if (msg
->model_name
&&
543 msg
->model_name_len
< sizeof(dev
->info
.model_name
)) {
544 os_memset(dev
->info
.model_name
, 0,
545 sizeof(dev
->info
.model_name
));
546 os_memcpy(dev
->info
.model_name
, msg
->model_name
,
547 msg
->model_name_len
);
550 if (msg
->model_number
&&
551 msg
->model_number_len
< sizeof(dev
->info
.model_number
)) {
552 os_memset(dev
->info
.model_number
, 0,
553 sizeof(dev
->info
.model_number
));
554 os_memcpy(dev
->info
.model_number
, msg
->model_number
,
555 msg
->model_number_len
);
558 if (msg
->serial_number
&&
559 msg
->serial_number_len
< sizeof(dev
->info
.serial_number
)) {
560 os_memset(dev
->info
.serial_number
, 0,
561 sizeof(dev
->info
.serial_number
));
562 os_memcpy(dev
->info
.serial_number
, msg
->serial_number
,
563 msg
->serial_number_len
);
566 if (msg
->pri_dev_type
)
567 os_memcpy(dev
->info
.pri_dev_type
, msg
->pri_dev_type
,
568 sizeof(dev
->info
.pri_dev_type
));
569 else if (msg
->wps_pri_dev_type
)
570 os_memcpy(dev
->info
.pri_dev_type
, msg
->wps_pri_dev_type
,
571 sizeof(dev
->info
.pri_dev_type
));
573 if (msg
->wps_sec_dev_type_list
) {
574 os_memcpy(dev
->info
.wps_sec_dev_type_list
,
575 msg
->wps_sec_dev_type_list
,
576 msg
->wps_sec_dev_type_list_len
);
577 dev
->info
.wps_sec_dev_type_list_len
=
578 msg
->wps_sec_dev_type_list_len
;
581 if (msg
->capability
) {
583 * P2P Client Discoverability bit is reserved in all frames
584 * that use this function, so do not change its value here.
586 dev
->info
.dev_capab
&= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
587 dev
->info
.dev_capab
|= msg
->capability
[0] &
588 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
589 dev
->info
.group_capab
= msg
->capability
[1];
592 if (msg
->ext_listen_timing
) {
593 dev
->ext_listen_period
= WPA_GET_LE16(msg
->ext_listen_timing
);
594 dev
->ext_listen_interval
=
595 WPA_GET_LE16(msg
->ext_listen_timing
+ 2);
599 u16 new_config_methods
;
600 new_config_methods
= msg
->config_methods
?
601 msg
->config_methods
: msg
->wps_config_methods
;
602 if (new_config_methods
&&
603 dev
->info
.config_methods
!= new_config_methods
) {
604 p2p_dbg(p2p
, "Update peer " MACSTR
605 " config_methods 0x%x -> 0x%x",
606 MAC2STR(dev
->info
.p2p_device_addr
),
607 dev
->info
.config_methods
,
609 dev
->info
.config_methods
= new_config_methods
;
615 static void p2p_update_peer_vendor_elems(struct p2p_device
*dev
, const u8
*ies
,
621 wpabuf_free(dev
->info
.vendor_elems
);
622 dev
->info
.vendor_elems
= NULL
;
626 for (pos
= ies
; pos
+ 1 < end
; pos
+= len
) {
633 if (id
!= WLAN_EID_VENDOR_SPECIFIC
|| len
< 3)
637 u32 type
= WPA_GET_BE32(pos
);
639 if (type
== WPA_IE_VENDOR_TYPE
||
640 type
== WMM_IE_VENDOR_TYPE
||
641 type
== WPS_IE_VENDOR_TYPE
||
642 type
== P2P_IE_VENDOR_TYPE
||
643 type
== WFD_IE_VENDOR_TYPE
)
647 /* Unknown vendor element - make raw IE data available */
648 if (wpabuf_resize(&dev
->info
.vendor_elems
, 2 + len
) < 0)
650 wpabuf_put_data(dev
->info
.vendor_elems
, pos
- 2, 2 + len
);
655 static int p2p_compare_wfd_info(struct p2p_device
*dev
,
656 const struct p2p_message
*msg
)
658 if (dev
->info
.wfd_subelems
&& msg
->wfd_subelems
) {
659 if (dev
->info
.wfd_subelems
->used
!= msg
->wfd_subelems
->used
)
662 return os_memcmp(dev
->info
.wfd_subelems
->buf
,
663 msg
->wfd_subelems
->buf
,
664 dev
->info
.wfd_subelems
->used
);
666 if (dev
->info
.wfd_subelems
|| msg
->wfd_subelems
)
674 * p2p_add_device - Add peer entries based on scan results or P2P frames
675 * @p2p: P2P module context from p2p_init()
676 * @addr: Source address of Beacon or Probe Response frame (may be either
677 * P2P Device Address or P2P Interface Address)
678 * @level: Signal level (signal strength of the received frame from the peer)
679 * @freq: Frequency on which the Beacon or Probe Response frame was received
680 * @rx_time: Time when the result was received
681 * @ies: IEs from the Beacon or Probe Response frame
682 * @ies_len: Length of ies buffer in octets
683 * @scan_res: Whether this was based on scan results
684 * Returns: 0 on success, -1 on failure
686 * If the scan result is for a GO, the clients in the group will also be added
687 * to the peer table. This function can also be used with some other frames
688 * like Provision Discovery Request that contains P2P Capability and P2P Device
691 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
,
692 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
693 size_t ies_len
, int scan_res
)
695 struct p2p_device
*dev
;
696 struct p2p_message msg
;
697 const u8
*p2p_dev_addr
;
700 struct os_reltime time_now
;
702 os_memset(&msg
, 0, sizeof(msg
));
703 if (p2p_parse_ies(ies
, ies_len
, &msg
)) {
704 p2p_dbg(p2p
, "Failed to parse P2P IE for a device entry");
705 p2p_parse_free(&msg
);
709 if (msg
.p2p_device_addr
)
710 p2p_dev_addr
= msg
.p2p_device_addr
;
711 else if (msg
.device_id
)
712 p2p_dev_addr
= msg
.device_id
;
714 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
715 p2p_parse_free(&msg
);
719 if (!is_zero_ether_addr(p2p
->peer_filter
) &&
720 os_memcmp(p2p_dev_addr
, p2p
->peer_filter
, ETH_ALEN
) != 0) {
721 p2p_dbg(p2p
, "Do not add peer filter for " MACSTR
722 " due to peer filter", MAC2STR(p2p_dev_addr
));
723 p2p_parse_free(&msg
);
727 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
729 p2p_parse_free(&msg
);
733 if (rx_time
== NULL
) {
734 os_get_reltime(&time_now
);
739 * Update the device entry only if the new peer
740 * entry is newer than the one previously stored.
742 if (dev
->last_seen
.sec
> 0 &&
743 os_reltime_before(rx_time
, &dev
->last_seen
)) {
744 p2p_dbg(p2p
, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
745 (unsigned int) rx_time
->sec
,
746 (unsigned int) rx_time
->usec
,
747 (unsigned int) dev
->last_seen
.sec
,
748 (unsigned int) dev
->last_seen
.usec
);
749 p2p_parse_free(&msg
);
753 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
755 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
757 if (os_memcmp(addr
, p2p_dev_addr
, ETH_ALEN
) != 0)
758 os_memcpy(dev
->interface_addr
, addr
, ETH_ALEN
);
760 (msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
761 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
763 os_memcpy(dev
->oper_ssid
, msg
.ssid
+ 2, msg
.ssid
[1]);
764 dev
->oper_ssid_len
= msg
.ssid
[1];
767 if (freq
>= 2412 && freq
<= 2484 && msg
.ds_params
&&
768 *msg
.ds_params
>= 1 && *msg
.ds_params
<= 14) {
770 if (*msg
.ds_params
== 14)
773 ds_freq
= 2407 + *msg
.ds_params
* 5;
774 if (freq
!= ds_freq
) {
775 p2p_dbg(p2p
, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
781 if (dev
->listen_freq
&& dev
->listen_freq
!= freq
&& scan_res
) {
782 p2p_dbg(p2p
, "Update Listen frequency based on scan results ("
783 MACSTR
" %d -> %d MHz (DS param %d)",
784 MAC2STR(dev
->info
.p2p_device_addr
), dev
->listen_freq
,
785 freq
, msg
.ds_params
? *msg
.ds_params
: -1);
788 dev
->listen_freq
= freq
;
790 dev
->oper_freq
= freq
;
792 dev
->info
.level
= level
;
794 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
796 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
797 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
798 dev
->info
.wps_vendor_ext
[i
] = NULL
;
801 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
802 if (msg
.wps_vendor_ext
[i
] == NULL
)
804 dev
->info
.wps_vendor_ext
[i
] = wpabuf_alloc_copy(
805 msg
.wps_vendor_ext
[i
], msg
.wps_vendor_ext_len
[i
]);
806 if (dev
->info
.wps_vendor_ext
[i
] == NULL
)
810 wfd_changed
= p2p_compare_wfd_info(dev
, &msg
);
812 if (msg
.wfd_subelems
) {
813 wpabuf_free(dev
->info
.wfd_subelems
);
814 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
818 p2p_add_group_clients(p2p
, p2p_dev_addr
, addr
, freq
,
819 msg
.group_info
, msg
.group_info_len
);
822 p2p_parse_free(&msg
);
824 p2p_update_peer_vendor_elems(dev
, ies
, ies_len
);
826 if (dev
->flags
& P2P_DEV_REPORTED
&& !wfd_changed
)
829 p2p_dbg(p2p
, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
830 freq
, (unsigned int) rx_time
->sec
,
831 (unsigned int) rx_time
->usec
);
832 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
833 p2p_dbg(p2p
, "Do not report rejected device");
837 if (dev
->info
.config_methods
== 0 &&
838 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
840 * If we have only seen a Beacon frame from a GO, we do not yet
841 * know what WPS config methods it supports. Since some
842 * applications use config_methods value from P2P-DEVICE-FOUND
843 * events, postpone reporting this peer until we've fully
844 * discovered its capabilities.
846 * At least for now, do this only if the peer was detected on
847 * one of the social channels since that peer can be easily be
848 * found again and there are no limitations of having to use
849 * passive scan on this channels, so this can be done through
850 * Probe Response frame that includes the config_methods
853 p2p_dbg(p2p
, "Do not report peer " MACSTR
854 " with unknown config methods", MAC2STR(addr
));
858 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
859 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
860 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
866 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
)
870 if (p2p
->go_neg_peer
== dev
) {
872 * If GO Negotiation is in progress, report that it has failed.
874 p2p_go_neg_failed(p2p
, -1);
876 if (p2p
->invite_peer
== dev
)
877 p2p
->invite_peer
= NULL
;
878 if (p2p
->sd_peer
== dev
)
880 if (p2p
->pending_client_disc_go
== dev
)
881 p2p
->pending_client_disc_go
= NULL
;
883 /* dev_lost() device, but only if it was previously dev_found() */
884 if (dev
->flags
& P2P_DEV_REPORTED_ONCE
)
885 p2p
->cfg
->dev_lost(p2p
->cfg
->cb_ctx
,
886 dev
->info
.p2p_device_addr
);
888 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
889 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
890 dev
->info
.wps_vendor_ext
[i
] = NULL
;
893 wpabuf_free(dev
->info
.wfd_subelems
);
894 wpabuf_free(dev
->info
.vendor_elems
);
895 wpabuf_free(dev
->go_neg_conf
);
901 static int p2p_get_next_prog_freq(struct p2p_data
*p2p
)
903 struct p2p_channels
*c
;
904 struct p2p_reg_class
*cla
;
911 c
= &p2p
->cfg
->channels
;
912 for (cl
= 0; cl
< c
->reg_classes
; cl
++) {
913 cla
= &c
->reg_class
[cl
];
914 if (cla
->reg_class
!= p2p
->last_prog_scan_class
)
916 for (ch
= 0; ch
< cla
->channels
; ch
++) {
917 if (cla
->channel
[ch
] == p2p
->last_prog_scan_chan
) {
927 /* Start from beginning */
928 reg_class
= c
->reg_class
[0].reg_class
;
929 channel
= c
->reg_class
[0].channel
[0];
931 /* Pick the next channel */
933 if (ch
== cla
->channels
) {
935 if (cl
== c
->reg_classes
)
939 reg_class
= c
->reg_class
[cl
].reg_class
;
940 channel
= c
->reg_class
[cl
].channel
[ch
];
943 freq
= p2p_channel_to_freq(reg_class
, channel
);
944 p2p_dbg(p2p
, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
945 reg_class
, channel
, freq
);
946 p2p
->last_prog_scan_class
= reg_class
;
947 p2p
->last_prog_scan_chan
= channel
;
949 if (freq
== 2412 || freq
== 2437 || freq
== 2462)
950 return 0; /* No need to add social channels */
955 static void p2p_search(struct p2p_data
*p2p
)
958 enum p2p_scan_type type
;
959 u16 pw_id
= DEV_PW_DEFAULT
;
962 if (p2p
->drv_in_listen
) {
963 p2p_dbg(p2p
, "Driver is still in Listen state - wait for it to end before continuing");
966 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
968 if (p2p
->find_type
== P2P_FIND_PROGRESSIVE
&&
969 (freq
= p2p_get_next_prog_freq(p2p
)) > 0) {
970 type
= P2P_SCAN_SOCIAL_PLUS_ONE
;
971 p2p_dbg(p2p
, "Starting search (+ freq %u)", freq
);
973 type
= P2P_SCAN_SOCIAL
;
974 p2p_dbg(p2p
, "Starting search");
977 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, type
, freq
,
978 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
979 p2p
->find_dev_id
, pw_id
);
981 p2p_dbg(p2p
, "Scan request schedule failed");
982 p2p_continue_find(p2p
);
987 static void p2p_find_timeout(void *eloop_ctx
, void *timeout_ctx
)
989 struct p2p_data
*p2p
= eloop_ctx
;
990 p2p_dbg(p2p
, "Find timeout -> stop");
995 void p2p_notify_scan_trigger_status(struct p2p_data
*p2p
, int status
)
998 p2p_dbg(p2p
, "Scan request failed");
999 /* Do continue find even for the first p2p_find_scan */
1000 p2p_continue_find(p2p
);
1002 p2p_dbg(p2p
, "Running p2p_scan");
1003 p2p
->p2p_scan_running
= 1;
1004 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
1005 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
1011 static int p2p_run_after_scan(struct p2p_data
*p2p
)
1013 struct p2p_device
*dev
;
1014 enum p2p_after_scan op
;
1016 if (p2p
->after_scan_tx
) {
1017 p2p
->after_scan_tx_in_progress
= 1;
1018 p2p_dbg(p2p
, "Send pending Action frame at p2p_scan completion");
1019 p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
,
1020 p2p
->after_scan_tx
->freq
,
1021 p2p
->after_scan_tx
->dst
,
1022 p2p
->after_scan_tx
->src
,
1023 p2p
->after_scan_tx
->bssid
,
1024 (u8
*) (p2p
->after_scan_tx
+ 1),
1025 p2p
->after_scan_tx
->len
,
1026 p2p
->after_scan_tx
->wait_time
);
1027 os_free(p2p
->after_scan_tx
);
1028 p2p
->after_scan_tx
= NULL
;
1032 op
= p2p
->start_after_scan
;
1033 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1035 case P2P_AFTER_SCAN_NOTHING
:
1037 case P2P_AFTER_SCAN_LISTEN
:
1038 p2p_dbg(p2p
, "Start previously requested Listen state");
1039 p2p_listen(p2p
, p2p
->pending_listen_sec
* 1000 +
1040 p2p
->pending_listen_usec
/ 1000);
1042 case P2P_AFTER_SCAN_CONNECT
:
1043 p2p_dbg(p2p
, "Start previously requested connect with " MACSTR
,
1044 MAC2STR(p2p
->after_scan_peer
));
1045 dev
= p2p_get_device(p2p
, p2p
->after_scan_peer
);
1047 p2p_dbg(p2p
, "Peer not known anymore");
1050 p2p_connect_send(p2p
, dev
);
1058 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
1060 struct p2p_data
*p2p
= eloop_ctx
;
1062 p2p_dbg(p2p
, "p2p_scan timeout (running=%d)", p2p
->p2p_scan_running
);
1063 running
= p2p
->p2p_scan_running
;
1064 /* Make sure we recover from missed scan results callback */
1065 p2p
->p2p_scan_running
= 0;
1068 p2p_run_after_scan(p2p
);
1072 static void p2p_free_req_dev_types(struct p2p_data
*p2p
)
1074 p2p
->num_req_dev_types
= 0;
1075 os_free(p2p
->req_dev_types
);
1076 p2p
->req_dev_types
= NULL
;
1080 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
1081 enum p2p_discovery_type type
,
1082 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
1083 const u8
*dev_id
, unsigned int search_delay
)
1087 p2p_dbg(p2p
, "Starting find (type=%d)", type
);
1088 os_get_reltime(&p2p
->find_start
);
1089 if (p2p
->p2p_scan_running
) {
1090 p2p_dbg(p2p
, "p2p_scan is already running");
1093 p2p_free_req_dev_types(p2p
);
1094 if (req_dev_types
&& num_req_dev_types
) {
1095 p2p
->req_dev_types
= os_malloc(num_req_dev_types
*
1097 if (p2p
->req_dev_types
== NULL
)
1099 os_memcpy(p2p
->req_dev_types
, req_dev_types
,
1100 num_req_dev_types
* WPS_DEV_TYPE_LEN
);
1101 p2p
->num_req_dev_types
= num_req_dev_types
;
1105 os_memcpy(p2p
->find_dev_id_buf
, dev_id
, ETH_ALEN
);
1106 p2p
->find_dev_id
= p2p
->find_dev_id_buf
;
1108 p2p
->find_dev_id
= NULL
;
1110 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1111 p2p_clear_timeout(p2p
);
1112 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1113 p2p
->find_type
= type
;
1114 p2p_device_clear_reported(p2p
);
1115 p2p_set_state(p2p
, P2P_SEARCH
);
1116 p2p
->search_delay
= search_delay
;
1117 p2p
->in_search_delay
= 0;
1118 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1119 p2p
->last_p2p_find_timeout
= timeout
;
1121 eloop_register_timeout(timeout
, 0, p2p_find_timeout
,
1124 case P2P_FIND_START_WITH_FULL
:
1125 case P2P_FIND_PROGRESSIVE
:
1126 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_FULL
, 0,
1127 p2p
->num_req_dev_types
,
1128 p2p
->req_dev_types
, dev_id
,
1131 case P2P_FIND_ONLY_SOCIAL
:
1132 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_SOCIAL
, 0,
1133 p2p
->num_req_dev_types
,
1134 p2p
->req_dev_types
, dev_id
,
1141 if (res
!= 0 && p2p
->p2p_scan_running
) {
1142 p2p_dbg(p2p
, "Failed to start p2p_scan - another p2p_scan was already running");
1143 /* wait for the previous p2p_scan to complete */
1144 res
= 0; /* do not report failure */
1145 } else if (res
!= 0) {
1146 p2p_dbg(p2p
, "Failed to start p2p_scan");
1147 p2p_set_state(p2p
, P2P_IDLE
);
1148 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1155 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
)
1157 p2p_dbg(p2p
, "Stopping find");
1158 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1159 p2p_clear_timeout(p2p
);
1160 if (p2p
->state
== P2P_SEARCH
)
1161 p2p
->cfg
->find_stopped(p2p
->cfg
->cb_ctx
);
1162 p2p_set_state(p2p
, P2P_IDLE
);
1163 p2p_free_req_dev_types(p2p
);
1164 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1165 if (p2p
->go_neg_peer
)
1166 p2p
->go_neg_peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
1167 p2p
->go_neg_peer
= NULL
;
1168 p2p
->sd_peer
= NULL
;
1169 p2p
->invite_peer
= NULL
;
1170 p2p_stop_listen_for_freq(p2p
, freq
);
1174 void p2p_stop_listen_for_freq(struct p2p_data
*p2p
, int freq
)
1176 if (freq
> 0 && p2p
->drv_in_listen
== freq
&& p2p
->in_listen
) {
1177 p2p_dbg(p2p
, "Skip stop_listen since we are on correct channel for response");
1180 if (p2p
->in_listen
) {
1182 p2p_clear_timeout(p2p
);
1184 if (p2p
->drv_in_listen
) {
1186 * The driver may not deliver callback to p2p_listen_end()
1187 * when the operation gets canceled, so clear the internal
1188 * variable that is tracking driver state.
1190 p2p_dbg(p2p
, "Clear drv_in_listen (%d)", p2p
->drv_in_listen
);
1191 p2p
->drv_in_listen
= 0;
1193 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1197 void p2p_stop_listen(struct p2p_data
*p2p
)
1199 if (p2p
->state
!= P2P_LISTEN_ONLY
) {
1200 p2p_dbg(p2p
, "Skip stop_listen since not in listen_only state.");
1204 p2p_stop_listen_for_freq(p2p
, 0);
1205 p2p_set_state(p2p
, P2P_IDLE
);
1209 void p2p_stop_find(struct p2p_data
*p2p
)
1211 p2p
->pending_listen_freq
= 0;
1212 p2p_stop_find_for_freq(p2p
, 0);
1216 static int p2p_prepare_channel_pref(struct p2p_data
*p2p
,
1217 unsigned int force_freq
,
1218 unsigned int pref_freq
, int go
)
1220 u8 op_class
, op_channel
;
1221 unsigned int freq
= force_freq
? force_freq
: pref_freq
;
1223 p2p_dbg(p2p
, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1224 force_freq
, pref_freq
, go
);
1225 if (p2p_freq_to_channel(freq
, &op_class
, &op_channel
) < 0) {
1226 p2p_dbg(p2p
, "Unsupported frequency %u MHz", freq
);
1230 if (!p2p_channels_includes(&p2p
->cfg
->channels
, op_class
, op_channel
) &&
1231 (go
|| !p2p_channels_includes(&p2p
->cfg
->cli_channels
, op_class
,
1233 p2p_dbg(p2p
, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1234 freq
, op_class
, op_channel
);
1238 p2p
->op_reg_class
= op_class
;
1239 p2p
->op_channel
= op_channel
;
1242 p2p
->channels
.reg_classes
= 1;
1243 p2p
->channels
.reg_class
[0].channels
= 1;
1244 p2p
->channels
.reg_class
[0].reg_class
= p2p
->op_reg_class
;
1245 p2p
->channels
.reg_class
[0].channel
[0] = p2p
->op_channel
;
1247 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1248 sizeof(struct p2p_channels
));
1255 static void p2p_prepare_channel_best(struct p2p_data
*p2p
)
1257 u8 op_class
, op_channel
;
1258 const int op_classes_5ghz
[] = { 124, 115, 0 };
1259 const int op_classes_ht40
[] = { 126, 127, 116, 117, 0 };
1260 const int op_classes_vht
[] = { 128, 0 };
1262 p2p_dbg(p2p
, "Prepare channel best");
1264 if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_overall
> 0 &&
1265 p2p_supported_freq(p2p
, p2p
->best_freq_overall
) &&
1266 p2p_freq_to_channel(p2p
->best_freq_overall
, &op_class
, &op_channel
)
1268 p2p_dbg(p2p
, "Select best overall channel as operating channel preference");
1269 p2p
->op_reg_class
= op_class
;
1270 p2p
->op_channel
= op_channel
;
1271 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_5
> 0 &&
1272 p2p_supported_freq(p2p
, p2p
->best_freq_5
) &&
1273 p2p_freq_to_channel(p2p
->best_freq_5
, &op_class
, &op_channel
)
1275 p2p_dbg(p2p
, "Select best 5 GHz channel as operating channel preference");
1276 p2p
->op_reg_class
= op_class
;
1277 p2p
->op_channel
= op_channel
;
1278 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_24
> 0 &&
1279 p2p_supported_freq(p2p
, p2p
->best_freq_24
) &&
1280 p2p_freq_to_channel(p2p
->best_freq_24
, &op_class
,
1281 &op_channel
) == 0) {
1282 p2p_dbg(p2p
, "Select best 2.4 GHz channel as operating channel preference");
1283 p2p
->op_reg_class
= op_class
;
1284 p2p
->op_channel
= op_channel
;
1285 } else if (p2p
->cfg
->num_pref_chan
> 0 &&
1286 p2p_channels_includes(&p2p
->cfg
->channels
,
1287 p2p
->cfg
->pref_chan
[0].op_class
,
1288 p2p
->cfg
->pref_chan
[0].chan
)) {
1289 p2p_dbg(p2p
, "Select first pref_chan entry as operating channel preference");
1290 p2p
->op_reg_class
= p2p
->cfg
->pref_chan
[0].op_class
;
1291 p2p
->op_channel
= p2p
->cfg
->pref_chan
[0].chan
;
1292 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_vht
,
1293 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1295 p2p_dbg(p2p
, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1296 p2p
->op_reg_class
, p2p
->op_channel
);
1297 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_ht40
,
1298 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1300 p2p_dbg(p2p
, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1301 p2p
->op_reg_class
, p2p
->op_channel
);
1302 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_5ghz
,
1303 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1305 p2p_dbg(p2p
, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1306 p2p
->op_reg_class
, p2p
->op_channel
);
1307 } else if (p2p_channels_includes(&p2p
->cfg
->channels
,
1308 p2p
->cfg
->op_reg_class
,
1309 p2p
->cfg
->op_channel
)) {
1310 p2p_dbg(p2p
, "Select pre-configured channel as operating channel preference");
1311 p2p
->op_reg_class
= p2p
->cfg
->op_reg_class
;
1312 p2p
->op_channel
= p2p
->cfg
->op_channel
;
1313 } else if (p2p_channel_random_social(&p2p
->cfg
->channels
,
1315 &p2p
->op_channel
) == 0) {
1316 p2p_dbg(p2p
, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1317 p2p
->op_reg_class
, p2p
->op_channel
);
1319 /* Select any random available channel from the first available
1320 * operating class */
1321 p2p_channel_select(&p2p
->cfg
->channels
, NULL
,
1324 p2p_dbg(p2p
, "Select random available channel %d from operating class %d as operating channel preference",
1325 p2p
->op_channel
, p2p
->op_reg_class
);
1328 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1329 sizeof(struct p2p_channels
));
1334 * p2p_prepare_channel - Select operating channel for GO Negotiation
1335 * @p2p: P2P module context from p2p_init()
1336 * @dev: Selected peer device
1337 * @force_freq: Forced frequency in MHz or 0 if not forced
1338 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1339 * @go: Whether the local end will be forced to be GO
1340 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1342 * This function is used to do initial operating channel selection for GO
1343 * Negotiation prior to having received peer information. The selected channel
1344 * may be further optimized in p2p_reselect_channel() once the peer information
1347 int p2p_prepare_channel(struct p2p_data
*p2p
, struct p2p_device
*dev
,
1348 unsigned int force_freq
, unsigned int pref_freq
, int go
)
1350 p2p_dbg(p2p
, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1351 force_freq
, pref_freq
, go
);
1352 if (force_freq
|| pref_freq
) {
1353 if (p2p_prepare_channel_pref(p2p
, force_freq
, pref_freq
, go
) <
1357 p2p_prepare_channel_best(p2p
);
1359 p2p_channels_dump(p2p
, "prepared channels", &p2p
->channels
);
1361 p2p_channels_remove_freqs(&p2p
->channels
, &p2p
->no_go_freq
);
1362 else if (!force_freq
)
1363 p2p_channels_union(&p2p
->channels
, &p2p
->cfg
->cli_channels
,
1365 p2p_channels_dump(p2p
, "after go/cli filter/add", &p2p
->channels
);
1367 p2p_dbg(p2p
, "Own preference for operation channel: Operating Class %u Channel %u%s",
1368 p2p
->op_reg_class
, p2p
->op_channel
,
1369 force_freq
? " (forced)" : "");
1372 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1374 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1380 static void p2p_set_dev_persistent(struct p2p_device
*dev
,
1381 int persistent_group
)
1383 switch (persistent_group
) {
1385 dev
->flags
&= ~(P2P_DEV_PREFER_PERSISTENT_GROUP
|
1386 P2P_DEV_PREFER_PERSISTENT_RECONN
);
1389 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
;
1390 dev
->flags
&= ~P2P_DEV_PREFER_PERSISTENT_RECONN
;
1393 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
|
1394 P2P_DEV_PREFER_PERSISTENT_RECONN
;
1400 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1401 enum p2p_wps_method wps_method
,
1402 int go_intent
, const u8
*own_interface_addr
,
1403 unsigned int force_freq
, int persistent_group
,
1404 const u8
*force_ssid
, size_t force_ssid_len
,
1405 int pd_before_go_neg
, unsigned int pref_freq
, u16 oob_pw_id
)
1407 struct p2p_device
*dev
;
1409 p2p_dbg(p2p
, "Request to start group negotiation - peer=" MACSTR
1410 " GO Intent=%d Intended Interface Address=" MACSTR
1411 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1413 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1414 wps_method
, persistent_group
, pd_before_go_neg
, oob_pw_id
);
1416 dev
= p2p_get_device(p2p
, peer_addr
);
1417 if (dev
== NULL
|| (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)) {
1418 p2p_dbg(p2p
, "Cannot connect to unknown P2P Device " MACSTR
,
1419 MAC2STR(peer_addr
));
1423 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
,
1424 go_intent
== 15) < 0)
1427 if (dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
) {
1428 if (!(dev
->info
.dev_capab
&
1429 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
)) {
1430 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1431 " that is in a group and is not discoverable",
1432 MAC2STR(peer_addr
));
1435 if (dev
->oper_freq
<= 0) {
1436 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1437 " with incomplete information",
1438 MAC2STR(peer_addr
));
1443 * First, try to connect directly. If the peer does not
1444 * acknowledge frames, assume it is sleeping and use device
1445 * discoverability via the GO at that point.
1451 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1452 force_ssid
, force_ssid_len
);
1453 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1454 p2p
->ssid_len
= force_ssid_len
;
1458 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1459 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1460 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
1461 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
1462 if (pd_before_go_neg
)
1463 dev
->flags
|= P2P_DEV_PD_BEFORE_GO_NEG
;
1465 dev
->flags
&= ~P2P_DEV_PD_BEFORE_GO_NEG
;
1467 * Assign dialog token and tie breaker here to use the same
1468 * values in each retry within the same GO Negotiation exchange.
1470 dev
->dialog_token
++;
1471 if (dev
->dialog_token
== 0)
1472 dev
->dialog_token
= 1;
1473 dev
->tie_breaker
= p2p
->next_tie_breaker
;
1474 p2p
->next_tie_breaker
= !p2p
->next_tie_breaker
;
1476 dev
->connect_reqs
= 0;
1477 dev
->go_neg_req_sent
= 0;
1478 dev
->go_state
= UNKNOWN_GO
;
1479 p2p_set_dev_persistent(dev
, persistent_group
);
1480 p2p
->go_intent
= go_intent
;
1481 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1483 if (p2p
->state
!= P2P_IDLE
)
1486 if (p2p
->after_scan_tx
) {
1488 * We need to drop the pending frame to avoid issues with the
1489 * new GO Negotiation, e.g., when the pending frame was from a
1490 * previous attempt at starting a GO Negotiation.
1492 p2p_dbg(p2p
, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
1493 os_free(p2p
->after_scan_tx
);
1494 p2p
->after_scan_tx
= NULL
;
1497 dev
->wps_method
= wps_method
;
1498 dev
->oob_pw_id
= oob_pw_id
;
1499 dev
->status
= P2P_SC_SUCCESS
;
1501 if (p2p
->p2p_scan_running
) {
1502 p2p_dbg(p2p
, "p2p_scan running - delay connect send");
1503 p2p
->start_after_scan
= P2P_AFTER_SCAN_CONNECT
;
1504 os_memcpy(p2p
->after_scan_peer
, peer_addr
, ETH_ALEN
);
1507 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1509 return p2p_connect_send(p2p
, dev
);
1513 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1514 enum p2p_wps_method wps_method
,
1515 int go_intent
, const u8
*own_interface_addr
,
1516 unsigned int force_freq
, int persistent_group
,
1517 const u8
*force_ssid
, size_t force_ssid_len
,
1518 unsigned int pref_freq
, u16 oob_pw_id
)
1520 struct p2p_device
*dev
;
1522 p2p_dbg(p2p
, "Request to authorize group negotiation - peer=" MACSTR
1523 " GO Intent=%d Intended Interface Address=" MACSTR
1524 " wps_method=%d persistent_group=%d oob_pw_id=%u",
1525 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1526 wps_method
, persistent_group
, oob_pw_id
);
1528 dev
= p2p_get_device(p2p
, peer_addr
);
1530 p2p_dbg(p2p
, "Cannot authorize unknown P2P Device " MACSTR
,
1531 MAC2STR(peer_addr
));
1535 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
, go_intent
==
1541 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1542 force_ssid
, force_ssid_len
);
1543 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1544 p2p
->ssid_len
= force_ssid_len
;
1548 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1549 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1550 dev
->go_neg_req_sent
= 0;
1551 dev
->go_state
= UNKNOWN_GO
;
1552 p2p_set_dev_persistent(dev
, persistent_group
);
1553 p2p
->go_intent
= go_intent
;
1554 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1556 dev
->wps_method
= wps_method
;
1557 dev
->oob_pw_id
= oob_pw_id
;
1558 dev
->status
= P2P_SC_SUCCESS
;
1564 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
1565 struct p2p_device
*dev
, struct p2p_message
*msg
)
1567 os_get_reltime(&dev
->last_seen
);
1569 p2p_copy_wps_info(p2p
, dev
, 0, msg
);
1571 if (msg
->listen_channel
) {
1573 freq
= p2p_channel_to_freq(msg
->listen_channel
[3],
1574 msg
->listen_channel
[4]);
1576 p2p_dbg(p2p
, "Unknown peer Listen channel: "
1577 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1578 msg
->listen_channel
[0],
1579 msg
->listen_channel
[1],
1580 msg
->listen_channel
[2],
1581 msg
->listen_channel
[3],
1582 msg
->listen_channel
[4]);
1584 p2p_dbg(p2p
, "Update peer " MACSTR
1585 " Listen channel: %u -> %u MHz",
1586 MAC2STR(dev
->info
.p2p_device_addr
),
1587 dev
->listen_freq
, freq
);
1588 dev
->listen_freq
= freq
;
1592 if (msg
->wfd_subelems
) {
1593 wpabuf_free(dev
->info
.wfd_subelems
);
1594 dev
->info
.wfd_subelems
= wpabuf_dup(msg
->wfd_subelems
);
1597 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
1598 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
1599 p2p_dbg(p2p
, "Completed device entry based on data from GO Negotiation Request");
1601 p2p_dbg(p2p
, "Created device entry based on GO Neg Req: "
1602 MACSTR
" dev_capab=0x%x group_capab=0x%x name='%s' "
1604 MAC2STR(dev
->info
.p2p_device_addr
),
1605 dev
->info
.dev_capab
, dev
->info
.group_capab
,
1606 dev
->info
.device_name
, dev
->listen_freq
);
1609 dev
->flags
&= ~P2P_DEV_GROUP_CLIENT_ONLY
;
1611 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
1612 p2p_dbg(p2p
, "Do not report rejected device");
1616 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
1617 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
1618 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
1622 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
)
1624 os_memcpy(ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1625 p2p_random((char *) &ssid
[P2P_WILDCARD_SSID_LEN
], 2);
1626 os_memcpy(&ssid
[P2P_WILDCARD_SSID_LEN
+ 2],
1627 p2p
->cfg
->ssid_postfix
, p2p
->cfg
->ssid_postfix_len
);
1628 *ssid_len
= P2P_WILDCARD_SSID_LEN
+ 2 + p2p
->cfg
->ssid_postfix_len
;
1632 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
)
1634 p2p_build_ssid(p2p
, params
->ssid
, ¶ms
->ssid_len
);
1635 p2p_random(params
->passphrase
, p2p
->cfg
->passphrase_len
);
1640 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
)
1642 struct p2p_go_neg_results res
;
1643 int go
= peer
->go_state
== LOCAL_GO
;
1644 struct p2p_channels intersection
;
1646 p2p_dbg(p2p
, "GO Negotiation with " MACSTR
" completed (%s will be GO)",
1647 MAC2STR(peer
->info
.p2p_device_addr
), go
? "local end" : "peer");
1649 os_memset(&res
, 0, sizeof(res
));
1651 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
1652 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
1653 res
.wps_method
= peer
->wps_method
;
1654 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
) {
1655 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_RECONN
)
1656 res
.persistent_group
= 2;
1658 res
.persistent_group
= 1;
1662 /* Setup AP mode for WPS provisioning */
1663 res
.freq
= p2p_channel_to_freq(p2p
->op_reg_class
,
1665 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1666 res
.ssid_len
= p2p
->ssid_len
;
1667 p2p_random(res
.passphrase
, p2p
->cfg
->passphrase_len
);
1669 res
.freq
= peer
->oper_freq
;
1670 if (p2p
->ssid_len
) {
1671 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1672 res
.ssid_len
= p2p
->ssid_len
;
1676 p2p_channels_dump(p2p
, "own channels", &p2p
->channels
);
1677 p2p_channels_dump(p2p
, "peer channels", &peer
->channels
);
1678 p2p_channels_intersect(&p2p
->channels
, &peer
->channels
,
1681 p2p_channels_remove_freqs(&intersection
, &p2p
->no_go_freq
);
1682 p2p_channels_dump(p2p
, "intersection after no-GO removal",
1686 p2p_channels_to_freqs(&intersection
, res
.freq_list
,
1689 res
.peer_config_timeout
= go
? peer
->client_timeout
: peer
->go_timeout
;
1691 p2p_clear_timeout(p2p
);
1693 peer
->go_neg_req_sent
= 0;
1694 peer
->wps_method
= WPS_NOT_READY
;
1695 peer
->oob_pw_id
= 0;
1696 wpabuf_free(peer
->go_neg_conf
);
1697 peer
->go_neg_conf
= NULL
;
1699 p2p_set_state(p2p
, P2P_PROVISIONING
);
1700 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
1704 static void p2p_rx_p2p_action(struct p2p_data
*p2p
, const u8
*sa
,
1705 const u8
*data
, size_t len
, int rx_freq
)
1707 p2p_dbg(p2p
, "RX P2P Public Action from " MACSTR
, MAC2STR(sa
));
1708 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Public Action contents", data
, len
);
1714 case P2P_GO_NEG_REQ
:
1715 p2p_process_go_neg_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1717 case P2P_GO_NEG_RESP
:
1718 p2p_process_go_neg_resp(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1720 case P2P_GO_NEG_CONF
:
1721 p2p_process_go_neg_conf(p2p
, sa
, data
+ 1, len
- 1);
1723 case P2P_INVITATION_REQ
:
1724 p2p_process_invitation_req(p2p
, sa
, data
+ 1, len
- 1,
1727 case P2P_INVITATION_RESP
:
1728 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
1729 p2p_process_invitation_resp(p2p
, sa
, data
+ 1, len
- 1);
1731 case P2P_PROV_DISC_REQ
:
1732 p2p_process_prov_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1734 case P2P_PROV_DISC_RESP
:
1735 p2p_process_prov_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1737 case P2P_DEV_DISC_REQ
:
1738 p2p_process_dev_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1740 case P2P_DEV_DISC_RESP
:
1741 p2p_process_dev_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1744 p2p_dbg(p2p
, "Unsupported P2P Public Action frame type %d",
1751 static void p2p_rx_action_public(struct p2p_data
*p2p
, const u8
*da
,
1752 const u8
*sa
, const u8
*bssid
, const u8
*data
,
1753 size_t len
, int freq
)
1759 case WLAN_PA_VENDOR_SPECIFIC
:
1764 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1770 p2p_rx_p2p_action(p2p
, sa
, data
, len
, freq
);
1772 case WLAN_PA_GAS_INITIAL_REQ
:
1773 p2p_rx_gas_initial_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1775 case WLAN_PA_GAS_INITIAL_RESP
:
1776 p2p_rx_gas_initial_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1778 case WLAN_PA_GAS_COMEBACK_REQ
:
1779 p2p_rx_gas_comeback_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1781 case WLAN_PA_GAS_COMEBACK_RESP
:
1782 p2p_rx_gas_comeback_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1788 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1789 const u8
*bssid
, u8 category
,
1790 const u8
*data
, size_t len
, int freq
)
1792 if (category
== WLAN_ACTION_PUBLIC
) {
1793 p2p_rx_action_public(p2p
, da
, sa
, bssid
, data
, len
, freq
);
1797 if (category
!= WLAN_ACTION_VENDOR_SPECIFIC
)
1803 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1808 /* P2P action frame */
1809 p2p_dbg(p2p
, "RX P2P Action from " MACSTR
, MAC2STR(sa
));
1810 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Action contents", data
, len
);
1816 p2p_dbg(p2p
, "Received P2P Action - Notice of Absence");
1819 case P2P_PRESENCE_REQ
:
1820 p2p_process_presence_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1822 case P2P_PRESENCE_RESP
:
1823 p2p_process_presence_resp(p2p
, da
, sa
, data
+ 1, len
- 1);
1825 case P2P_GO_DISC_REQ
:
1826 p2p_process_go_disc_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1829 p2p_dbg(p2p
, "Received P2P Action - unknown type %u", data
[0]);
1835 static void p2p_go_neg_start(void *eloop_ctx
, void *timeout_ctx
)
1837 struct p2p_data
*p2p
= eloop_ctx
;
1838 if (p2p
->go_neg_peer
== NULL
)
1840 if (p2p
->pending_listen_freq
) {
1841 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_go_neg_start");
1842 p2p
->pending_listen_freq
= 0;
1844 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1845 p2p
->go_neg_peer
->status
= P2P_SC_SUCCESS
;
1847 * Set new timeout to make sure a previously set one does not expire
1848 * too quickly while waiting for the GO Negotiation to complete.
1850 p2p_set_timeout(p2p
, 0, 500000);
1851 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
1855 static void p2p_invite_start(void *eloop_ctx
, void *timeout_ctx
)
1857 struct p2p_data
*p2p
= eloop_ctx
;
1858 if (p2p
->invite_peer
== NULL
)
1860 if (p2p
->pending_listen_freq
) {
1861 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_invite_start");
1862 p2p
->pending_listen_freq
= 0;
1864 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1865 p2p_invite_send(p2p
, p2p
->invite_peer
, p2p
->invite_go_dev_addr
,
1866 p2p
->invite_dev_pw_id
);
1870 static void p2p_add_dev_from_probe_req(struct p2p_data
*p2p
, const u8
*addr
,
1871 const u8
*ie
, size_t ie_len
)
1873 struct p2p_message msg
;
1874 struct p2p_device
*dev
;
1876 os_memset(&msg
, 0, sizeof(msg
));
1877 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0 || msg
.p2p_attributes
== NULL
)
1879 p2p_parse_free(&msg
);
1880 return; /* not a P2P probe */
1883 if (msg
.ssid
== NULL
|| msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
1884 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
1886 /* The Probe Request is not part of P2P Device Discovery. It is
1887 * not known whether the source address of the frame is the P2P
1888 * Device Address or P2P Interface Address. Do not add a new
1889 * peer entry based on this frames.
1891 p2p_parse_free(&msg
);
1895 dev
= p2p_get_device(p2p
, addr
);
1897 if (dev
->country
[0] == 0 && msg
.listen_channel
)
1898 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
1899 os_get_reltime(&dev
->last_seen
);
1900 p2p_parse_free(&msg
);
1901 return; /* already known */
1904 dev
= p2p_create_device(p2p
, addr
);
1906 p2p_parse_free(&msg
);
1910 os_get_reltime(&dev
->last_seen
);
1911 dev
->flags
|= P2P_DEV_PROBE_REQ_ONLY
;
1913 if (msg
.listen_channel
) {
1914 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
1915 dev
->listen_freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
1916 msg
.listen_channel
[4]);
1919 p2p_copy_wps_info(p2p
, dev
, 1, &msg
);
1921 if (msg
.wfd_subelems
) {
1922 wpabuf_free(dev
->info
.wfd_subelems
);
1923 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
1926 p2p_parse_free(&msg
);
1928 p2p_dbg(p2p
, "Created device entry based on Probe Req: " MACSTR
1929 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1930 MAC2STR(dev
->info
.p2p_device_addr
), dev
->info
.dev_capab
,
1931 dev
->info
.group_capab
, dev
->info
.device_name
,
1936 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
1938 struct p2p_message
*msg
)
1940 struct p2p_device
*dev
;
1942 dev
= p2p_get_device(p2p
, addr
);
1944 os_get_reltime(&dev
->last_seen
);
1945 return dev
; /* already known */
1948 dev
= p2p_create_device(p2p
, addr
);
1952 p2p_add_dev_info(p2p
, addr
, dev
, msg
);
1958 static int dev_type_match(const u8
*dev_type
, const u8
*req_dev_type
)
1960 if (os_memcmp(dev_type
, req_dev_type
, WPS_DEV_TYPE_LEN
) == 0)
1962 if (os_memcmp(dev_type
, req_dev_type
, 2) == 0 &&
1963 WPA_GET_BE32(&req_dev_type
[2]) == 0 &&
1964 WPA_GET_BE16(&req_dev_type
[6]) == 0)
1965 return 1; /* Category match with wildcard OUI/sub-category */
1970 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
1971 size_t num_req_dev_type
)
1974 for (i
= 0; i
< num_req_dev_type
; i
++) {
1975 if (dev_type_match(dev_type
, req_dev_type
[i
]))
1983 * p2p_match_dev_type - Match local device type with requested type
1984 * @p2p: P2P module context from p2p_init()
1985 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1986 * Returns: 1 on match, 0 on mismatch
1988 * This function can be used to match the Requested Device Type attribute in
1989 * WPS IE with the local device types for deciding whether to reply to a Probe
1992 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
)
1994 struct wps_parse_attr attr
;
1997 if (wps_parse_msg(wps
, &attr
))
1998 return 1; /* assume no Requested Device Type attributes */
2000 if (attr
.num_req_dev_type
== 0)
2001 return 1; /* no Requested Device Type attributes -> match */
2003 if (dev_type_list_match(p2p
->cfg
->pri_dev_type
, attr
.req_dev_type
,
2004 attr
.num_req_dev_type
))
2005 return 1; /* Own Primary Device Type matches */
2007 for (i
= 0; i
< p2p
->cfg
->num_sec_dev_types
; i
++) {
2008 if (dev_type_list_match(p2p
->cfg
->sec_dev_type
[i
],
2010 attr
.num_req_dev_type
))
2011 return 1; /* Own Secondary Device Type matches */
2014 /* No matching device type found */
2019 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
)
2026 #ifdef CONFIG_WIFI_DISPLAY
2027 if (p2p
->wfd_ie_probe_resp
)
2028 extra
= wpabuf_len(p2p
->wfd_ie_probe_resp
);
2029 #endif /* CONFIG_WIFI_DISPLAY */
2031 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2032 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2034 buf
= wpabuf_alloc(1000 + extra
);
2038 if (p2p
->go_neg_peer
) {
2039 /* Advertise immediate availability of WPS credential */
2040 pw_id
= p2p_wps_method_pw_id(p2p
->go_neg_peer
->wps_method
);
2043 if (p2p_build_wps_ie(p2p
, buf
, pw_id
, 1) < 0) {
2044 p2p_dbg(p2p
, "Failed to build WPS IE for Probe Response");
2049 #ifdef CONFIG_WIFI_DISPLAY
2050 if (p2p
->wfd_ie_probe_resp
)
2051 wpabuf_put_buf(buf
, p2p
->wfd_ie_probe_resp
);
2052 #endif /* CONFIG_WIFI_DISPLAY */
2054 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2056 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2059 len
= p2p_buf_add_ie_hdr(buf
);
2060 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
2061 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
2062 if (p2p
->ext_listen_interval
)
2063 p2p_buf_add_ext_listen_timing(buf
, p2p
->ext_listen_period
,
2064 p2p
->ext_listen_interval
);
2065 p2p_buf_add_device_info(buf
, p2p
, NULL
);
2066 p2p_buf_update_ie_hdr(buf
, len
);
2072 static enum p2p_probe_req_status
2073 p2p_reply_probe(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2074 const u8
*bssid
, const u8
*ie
, size_t ie_len
)
2076 struct ieee802_11_elems elems
;
2078 struct ieee80211_mgmt
*resp
;
2079 struct p2p_message msg
;
2082 if (!p2p
->in_listen
|| !p2p
->drv_in_listen
) {
2083 /* not in Listen state - ignore Probe Request */
2084 p2p_dbg(p2p
, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2085 p2p
->in_listen
, p2p
->drv_in_listen
);
2086 return P2P_PREQ_NOT_LISTEN
;
2089 if (ieee802_11_parse_elems((u8
*) ie
, ie_len
, &elems
, 0) ==
2091 /* Ignore invalid Probe Request frames */
2092 p2p_dbg(p2p
, "Could not parse Probe Request frame - ignore it");
2093 return P2P_PREQ_MALFORMED
;
2096 if (elems
.p2p
== NULL
) {
2097 /* not a P2P probe - ignore it */
2098 p2p_dbg(p2p
, "Not a P2P probe - ignore it");
2099 return P2P_PREQ_NOT_P2P
;
2102 if (dst
&& !is_broadcast_ether_addr(dst
) &&
2103 os_memcmp(dst
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2104 /* Not sent to the broadcast address or our P2P Device Address
2106 p2p_dbg(p2p
, "Probe Req DA " MACSTR
" not ours - ignore it",
2108 return P2P_PREQ_NOT_PROCESSED
;
2111 if (bssid
&& !is_broadcast_ether_addr(bssid
)) {
2112 /* Not sent to the Wildcard BSSID */
2113 p2p_dbg(p2p
, "Probe Req BSSID " MACSTR
" not wildcard - ignore it",
2115 return P2P_PREQ_NOT_PROCESSED
;
2118 if (elems
.ssid
== NULL
|| elems
.ssid_len
!= P2P_WILDCARD_SSID_LEN
||
2119 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
) !=
2121 /* not using P2P Wildcard SSID - ignore */
2122 p2p_dbg(p2p
, "Probe Req not using P2P Wildcard SSID - ignore it");
2123 return P2P_PREQ_NOT_PROCESSED
;
2126 if (supp_rates_11b_only(&elems
)) {
2127 /* Indicates support for 11b rates only */
2128 p2p_dbg(p2p
, "Probe Req with 11b rates only supported - ignore it");
2129 return P2P_PREQ_NOT_P2P
;
2132 os_memset(&msg
, 0, sizeof(msg
));
2133 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0) {
2134 /* Could not parse P2P attributes */
2135 p2p_dbg(p2p
, "Could not parse P2P attributes in Probe Req - ignore it");
2136 return P2P_PREQ_NOT_P2P
;
2139 if (msg
.device_id
&&
2140 os_memcmp(msg
.device_id
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2141 /* Device ID did not match */
2142 p2p_dbg(p2p
, "Probe Req requested Device ID " MACSTR
" did not match - ignore it",
2143 MAC2STR(msg
.device_id
));
2144 p2p_parse_free(&msg
);
2145 return P2P_PREQ_NOT_PROCESSED
;
2148 /* Check Requested Device Type match */
2149 if (msg
.wps_attributes
&&
2150 !p2p_match_dev_type(p2p
, msg
.wps_attributes
)) {
2151 /* No match with Requested Device Type */
2152 p2p_dbg(p2p
, "Probe Req requestred Device Type did not match - ignore it");
2153 p2p_parse_free(&msg
);
2154 return P2P_PREQ_NOT_PROCESSED
;
2156 p2p_parse_free(&msg
);
2158 if (!p2p
->cfg
->send_probe_resp
) {
2159 /* Response generated elsewhere */
2160 p2p_dbg(p2p
, "Probe Resp generated elsewhere - do not generate additional response");
2161 return P2P_PREQ_NOT_PROCESSED
;
2164 p2p_dbg(p2p
, "Reply to P2P Probe Request in Listen state");
2167 * We do not really have a specific BSS that this frame is advertising,
2168 * so build a frame that has some information in valid format. This is
2169 * really only used for discovery purposes, not to learn exact BSS
2172 ies
= p2p_build_probe_resp_ies(p2p
);
2174 return P2P_PREQ_NOT_PROCESSED
;
2176 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
2179 return P2P_PREQ_NOT_PROCESSED
;
2183 resp
= wpabuf_put(buf
, resp
->u
.probe_resp
.variable
- (u8
*) resp
);
2185 resp
->frame_control
= host_to_le16((WLAN_FC_TYPE_MGMT
<< 2) |
2186 (WLAN_FC_STYPE_PROBE_RESP
<< 4));
2187 os_memcpy(resp
->da
, addr
, ETH_ALEN
);
2188 os_memcpy(resp
->sa
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2189 os_memcpy(resp
->bssid
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2190 resp
->u
.probe_resp
.beacon_int
= host_to_le16(100);
2191 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2192 resp
->u
.probe_resp
.capab_info
=
2193 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
|
2194 WLAN_CAPABILITY_PRIVACY
|
2195 WLAN_CAPABILITY_SHORT_SLOT_TIME
);
2197 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
2198 wpabuf_put_u8(buf
, P2P_WILDCARD_SSID_LEN
);
2199 wpabuf_put_data(buf
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
2201 wpabuf_put_u8(buf
, WLAN_EID_SUPP_RATES
);
2202 wpabuf_put_u8(buf
, 8);
2203 wpabuf_put_u8(buf
, (60 / 5) | 0x80);
2204 wpabuf_put_u8(buf
, 90 / 5);
2205 wpabuf_put_u8(buf
, (120 / 5) | 0x80);
2206 wpabuf_put_u8(buf
, 180 / 5);
2207 wpabuf_put_u8(buf
, (240 / 5) | 0x80);
2208 wpabuf_put_u8(buf
, 360 / 5);
2209 wpabuf_put_u8(buf
, 480 / 5);
2210 wpabuf_put_u8(buf
, 540 / 5);
2212 wpabuf_put_u8(buf
, WLAN_EID_DS_PARAMS
);
2213 wpabuf_put_u8(buf
, 1);
2214 wpabuf_put_u8(buf
, p2p
->cfg
->channel
);
2216 wpabuf_put_buf(buf
, ies
);
2219 p2p
->cfg
->send_probe_resp(p2p
->cfg
->cb_ctx
, buf
);
2223 return P2P_PREQ_NOT_PROCESSED
;
2227 enum p2p_probe_req_status
2228 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2229 const u8
*bssid
, const u8
*ie
, size_t ie_len
)
2231 enum p2p_probe_req_status res
;
2233 p2p_add_dev_from_probe_req(p2p
, addr
, ie
, ie_len
);
2235 res
= p2p_reply_probe(p2p
, addr
, dst
, bssid
, ie
, ie_len
);
2237 if ((p2p
->state
== P2P_CONNECT
|| p2p
->state
== P2P_CONNECT_LISTEN
) &&
2239 os_memcmp(addr
, p2p
->go_neg_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2241 !(p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
2242 /* Received a Probe Request from GO Negotiation peer */
2243 p2p_dbg(p2p
, "Found GO Negotiation peer - try to start GO negotiation from timeout");
2244 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2245 eloop_register_timeout(0, 0, p2p_go_neg_start
, p2p
, NULL
);
2246 return P2P_PREQ_PROCESSED
;
2249 if ((p2p
->state
== P2P_INVITE
|| p2p
->state
== P2P_INVITE_LISTEN
) &&
2251 (p2p
->invite_peer
->flags
& P2P_DEV_WAIT_INV_REQ_ACK
) &&
2252 os_memcmp(addr
, p2p
->invite_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2254 /* Received a Probe Request from Invite peer */
2255 p2p_dbg(p2p
, "Found Invite peer - try to start Invite from timeout");
2256 eloop_cancel_timeout(p2p_invite_start
, p2p
, NULL
);
2257 eloop_register_timeout(0, 0, p2p_invite_start
, p2p
, NULL
);
2258 return P2P_PREQ_PROCESSED
;
2265 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data
*p2p
, const u8
*bssid
,
2266 u8
*buf
, size_t len
, struct wpabuf
*p2p_ie
)
2275 return 0; /* WLAN AP is not a P2P manager */
2278 * (Re)Association Request - P2P IE
2279 * P2P Capability attribute (shall be present)
2280 * P2P Interface attribute (present if concurrent device and
2281 * P2P Management is enabled)
2283 tmp
= wpabuf_alloc(200);
2287 lpos
= p2p_buf_add_ie_hdr(tmp
);
2289 if (p2p
->num_groups
> 0) {
2290 group_capab
|= P2P_GROUP_CAPAB_GROUP_OWNER
;
2291 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2292 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
) &&
2294 group_capab
|= P2P_GROUP_CAPAB_CROSS_CONN
;
2296 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, group_capab
);
2297 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2298 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
))
2299 p2p_buf_add_p2p_interface(tmp
, p2p
);
2300 p2p_buf_update_ie_hdr(tmp
, lpos
);
2302 tmplen
= wpabuf_len(tmp
);
2306 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2315 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
2316 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
)
2320 struct p2p_device
*peer
;
2326 return p2p_assoc_req_ie_wlan_ap(p2p
, bssid
, buf
, len
, p2p_ie
);
2328 #ifdef CONFIG_WIFI_DISPLAY
2329 if (p2p
->wfd_ie_assoc_req
)
2330 extra
= wpabuf_len(p2p
->wfd_ie_assoc_req
);
2331 #endif /* CONFIG_WIFI_DISPLAY */
2333 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2334 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2337 * (Re)Association Request - P2P IE
2338 * P2P Capability attribute (shall be present)
2339 * Extended Listen Timing (may be present)
2340 * P2P Device Info attribute (shall be present)
2342 tmp
= wpabuf_alloc(200 + extra
);
2346 #ifdef CONFIG_WIFI_DISPLAY
2347 if (p2p
->wfd_ie_assoc_req
)
2348 wpabuf_put_buf(tmp
, p2p
->wfd_ie_assoc_req
);
2349 #endif /* CONFIG_WIFI_DISPLAY */
2351 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2353 p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2355 peer
= bssid
? p2p_get_device(p2p
, bssid
) : NULL
;
2357 lpos
= p2p_buf_add_ie_hdr(tmp
);
2358 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, 0);
2359 if (p2p
->ext_listen_interval
)
2360 p2p_buf_add_ext_listen_timing(tmp
, p2p
->ext_listen_period
,
2361 p2p
->ext_listen_interval
);
2362 p2p_buf_add_device_info(tmp
, p2p
, peer
);
2363 p2p_buf_update_ie_hdr(tmp
, lpos
);
2365 tmplen
= wpabuf_len(tmp
);
2369 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2378 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
)
2380 struct wpabuf
*p2p_ie
;
2383 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, P2P_IE_VENDOR_TYPE
);
2387 ret
= p2p_attr_text(p2p_ie
, buf
, end
);
2388 wpabuf_free(p2p_ie
);
2393 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
)
2395 struct p2p_message msg
;
2397 os_memset(&msg
, 0, sizeof(msg
));
2398 if (p2p_parse_p2p_ie(p2p_ie
, &msg
))
2401 if (msg
.p2p_device_addr
) {
2402 os_memcpy(dev_addr
, msg
.p2p_device_addr
, ETH_ALEN
);
2404 } else if (msg
.device_id
) {
2405 os_memcpy(dev_addr
, msg
.device_id
, ETH_ALEN
);
2412 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
)
2414 struct wpabuf
*p2p_ie
;
2417 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
,
2418 P2P_IE_VENDOR_TYPE
);
2421 ret
= p2p_parse_dev_addr_in_p2p_ie(p2p_ie
, dev_addr
);
2422 wpabuf_free(p2p_ie
);
2427 static void p2p_clear_go_neg(struct p2p_data
*p2p
)
2429 p2p
->go_neg_peer
= NULL
;
2430 p2p_clear_timeout(p2p
);
2431 p2p_set_state(p2p
, P2P_IDLE
);
2435 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
)
2437 if (p2p
->go_neg_peer
== NULL
) {
2438 p2p_dbg(p2p
, "No pending Group Formation - ignore WPS registration success notification");
2439 return; /* No pending Group Formation */
2442 if (os_memcmp(mac_addr
, p2p
->go_neg_peer
->intended_addr
, ETH_ALEN
) !=
2444 p2p_dbg(p2p
, "Ignore WPS registration success notification for "
2445 MACSTR
" (GO Negotiation peer " MACSTR
")",
2447 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2448 return; /* Ignore unexpected peer address */
2451 p2p_dbg(p2p
, "Group Formation completed successfully with " MACSTR
,
2454 p2p_clear_go_neg(p2p
);
2458 void p2p_group_formation_failed(struct p2p_data
*p2p
)
2460 if (p2p
->go_neg_peer
== NULL
) {
2461 p2p_dbg(p2p
, "No pending Group Formation - ignore group formation failure notification");
2462 return; /* No pending Group Formation */
2465 p2p_dbg(p2p
, "Group Formation failed with " MACSTR
,
2466 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2468 p2p_clear_go_neg(p2p
);
2472 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
)
2474 struct p2p_data
*p2p
;
2476 if (cfg
->max_peers
< 1 ||
2477 cfg
->passphrase_len
< 8 || cfg
->passphrase_len
> 63)
2480 p2p
= os_zalloc(sizeof(*p2p
) + sizeof(*cfg
));
2483 p2p
->cfg
= (struct p2p_config
*) (p2p
+ 1);
2484 os_memcpy(p2p
->cfg
, cfg
, sizeof(*cfg
));
2486 p2p
->cfg
->dev_name
= os_strdup(cfg
->dev_name
);
2487 if (cfg
->manufacturer
)
2488 p2p
->cfg
->manufacturer
= os_strdup(cfg
->manufacturer
);
2489 if (cfg
->model_name
)
2490 p2p
->cfg
->model_name
= os_strdup(cfg
->model_name
);
2491 if (cfg
->model_number
)
2492 p2p
->cfg
->model_number
= os_strdup(cfg
->model_number
);
2493 if (cfg
->serial_number
)
2494 p2p
->cfg
->serial_number
= os_strdup(cfg
->serial_number
);
2495 if (cfg
->pref_chan
) {
2496 p2p
->cfg
->pref_chan
= os_malloc(cfg
->num_pref_chan
*
2497 sizeof(struct p2p_channel
));
2498 if (p2p
->cfg
->pref_chan
) {
2499 os_memcpy(p2p
->cfg
->pref_chan
, cfg
->pref_chan
,
2500 cfg
->num_pref_chan
*
2501 sizeof(struct p2p_channel
));
2503 p2p
->cfg
->num_pref_chan
= 0;
2506 p2p
->min_disc_int
= 1;
2507 p2p
->max_disc_int
= 3;
2508 p2p
->max_disc_tu
= -1;
2510 if (os_get_random(&p2p
->next_tie_breaker
, 1) < 0)
2511 p2p
->next_tie_breaker
= 0;
2512 p2p
->next_tie_breaker
&= 0x01;
2513 if (cfg
->sd_request
)
2514 p2p
->dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
2515 p2p
->dev_capab
|= P2P_DEV_CAPAB_INVITATION_PROCEDURE
;
2516 if (cfg
->concurrent_operations
)
2517 p2p
->dev_capab
|= P2P_DEV_CAPAB_CONCURRENT_OPER
;
2518 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
2520 dl_list_init(&p2p
->devices
);
2522 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL
, 0,
2523 p2p_expiration_timeout
, p2p
, NULL
);
2525 p2p
->go_timeout
= 100;
2526 p2p
->client_timeout
= 20;
2527 p2p
->num_p2p_sd_queries
= 0;
2529 p2p_dbg(p2p
, "initialized");
2530 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
2531 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
2537 void p2p_deinit(struct p2p_data
*p2p
)
2539 #ifdef CONFIG_WIFI_DISPLAY
2540 wpabuf_free(p2p
->wfd_ie_beacon
);
2541 wpabuf_free(p2p
->wfd_ie_probe_req
);
2542 wpabuf_free(p2p
->wfd_ie_probe_resp
);
2543 wpabuf_free(p2p
->wfd_ie_assoc_req
);
2544 wpabuf_free(p2p
->wfd_ie_invitation
);
2545 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
2546 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
2547 wpabuf_free(p2p
->wfd_ie_go_neg
);
2548 wpabuf_free(p2p
->wfd_dev_info
);
2549 wpabuf_free(p2p
->wfd_assoc_bssid
);
2550 wpabuf_free(p2p
->wfd_coupled_sink_info
);
2551 #endif /* CONFIG_WIFI_DISPLAY */
2553 eloop_cancel_timeout(p2p_expiration_timeout
, p2p
, NULL
);
2554 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
2555 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2556 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2557 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
2559 p2p_free_req_dev_types(p2p
);
2560 os_free(p2p
->cfg
->dev_name
);
2561 os_free(p2p
->cfg
->manufacturer
);
2562 os_free(p2p
->cfg
->model_name
);
2563 os_free(p2p
->cfg
->model_number
);
2564 os_free(p2p
->cfg
->serial_number
);
2565 os_free(p2p
->cfg
->pref_chan
);
2566 os_free(p2p
->groups
);
2567 wpabuf_free(p2p
->sd_resp
);
2568 os_free(p2p
->after_scan_tx
);
2569 p2p_remove_wps_vendor_extensions(p2p
);
2570 os_free(p2p
->no_go_freq
.range
);
2575 void p2p_flush(struct p2p_data
*p2p
)
2577 struct p2p_device
*dev
, *prev
;
2579 dl_list_for_each_safe(dev
, prev
, &p2p
->devices
, struct p2p_device
,
2581 dl_list_del(&dev
->list
);
2582 p2p_device_free(p2p
, dev
);
2584 p2p_free_sd_queries(p2p
);
2585 os_free(p2p
->after_scan_tx
);
2586 p2p
->after_scan_tx
= NULL
;
2590 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
)
2592 struct p2p_device
*dev
;
2594 dev
= p2p_get_device(p2p
, addr
);
2598 p2p_dbg(p2p
, "Unauthorizing " MACSTR
, MAC2STR(addr
));
2600 if (p2p
->go_neg_peer
== dev
) {
2601 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
2602 p2p
->go_neg_peer
= NULL
;
2605 dev
->wps_method
= WPS_NOT_READY
;
2607 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
2608 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
2610 /* Check if after_scan_tx is for this peer. If so free it */
2611 if (p2p
->after_scan_tx
&&
2612 os_memcmp(addr
, p2p
->after_scan_tx
->dst
, ETH_ALEN
) == 0) {
2613 os_free(p2p
->after_scan_tx
);
2614 p2p
->after_scan_tx
= NULL
;
2621 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
)
2623 os_free(p2p
->cfg
->dev_name
);
2625 p2p
->cfg
->dev_name
= os_strdup(dev_name
);
2626 if (p2p
->cfg
->dev_name
== NULL
)
2629 p2p
->cfg
->dev_name
= NULL
;
2634 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
)
2636 os_free(p2p
->cfg
->manufacturer
);
2637 p2p
->cfg
->manufacturer
= NULL
;
2639 p2p
->cfg
->manufacturer
= os_strdup(manufacturer
);
2640 if (p2p
->cfg
->manufacturer
== NULL
)
2648 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
)
2650 os_free(p2p
->cfg
->model_name
);
2651 p2p
->cfg
->model_name
= NULL
;
2653 p2p
->cfg
->model_name
= os_strdup(model_name
);
2654 if (p2p
->cfg
->model_name
== NULL
)
2662 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
)
2664 os_free(p2p
->cfg
->model_number
);
2665 p2p
->cfg
->model_number
= NULL
;
2667 p2p
->cfg
->model_number
= os_strdup(model_number
);
2668 if (p2p
->cfg
->model_number
== NULL
)
2676 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
)
2678 os_free(p2p
->cfg
->serial_number
);
2679 p2p
->cfg
->serial_number
= NULL
;
2680 if (serial_number
) {
2681 p2p
->cfg
->serial_number
= os_strdup(serial_number
);
2682 if (p2p
->cfg
->serial_number
== NULL
)
2690 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
)
2692 p2p
->cfg
->config_methods
= config_methods
;
2696 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
)
2698 os_memcpy(p2p
->cfg
->uuid
, uuid
, 16);
2702 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
)
2704 os_memcpy(p2p
->cfg
->pri_dev_type
, pri_dev_type
, 8);
2709 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
2710 size_t num_dev_types
)
2712 if (num_dev_types
> P2P_SEC_DEVICE_TYPES
)
2713 num_dev_types
= P2P_SEC_DEVICE_TYPES
;
2714 p2p
->cfg
->num_sec_dev_types
= num_dev_types
;
2715 os_memcpy(p2p
->cfg
->sec_dev_type
, dev_types
, num_dev_types
* 8);
2720 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
)
2724 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
2725 wpabuf_free(p2p
->wps_vendor_ext
[i
]);
2726 p2p
->wps_vendor_ext
[i
] = NULL
;
2731 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
2732 const struct wpabuf
*vendor_ext
)
2736 if (vendor_ext
== NULL
)
2739 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
2740 if (p2p
->wps_vendor_ext
[i
] == NULL
)
2743 if (i
>= P2P_MAX_WPS_VENDOR_EXT
)
2746 p2p
->wps_vendor_ext
[i
] = wpabuf_dup(vendor_ext
);
2747 if (p2p
->wps_vendor_ext
[i
] == NULL
)
2754 int p2p_set_country(struct p2p_data
*p2p
, const char *country
)
2756 os_memcpy(p2p
->cfg
->country
, country
, 3);
2761 static int p2p_pre_find_operation(struct p2p_data
*p2p
, struct p2p_device
*dev
)
2763 if (dev
->sd_pending_bcast_queries
== 0) {
2764 /* Initialize with total number of registered broadcast
2766 dev
->sd_pending_bcast_queries
= p2p
->num_p2p_sd_queries
;
2769 if (p2p_start_sd(p2p
, dev
) == 0)
2772 if (dev
->req_config_methods
&&
2773 !(dev
->flags
& P2P_DEV_PD_FOR_JOIN
)) {
2774 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
2775 MACSTR
" (config methods 0x%x)",
2776 MAC2STR(dev
->info
.p2p_device_addr
),
2777 dev
->req_config_methods
);
2778 if (p2p_send_prov_disc_req(p2p
, dev
, 0, 0) == 0)
2786 void p2p_continue_find(struct p2p_data
*p2p
)
2788 struct p2p_device
*dev
;
2791 p2p_set_state(p2p
, P2P_SEARCH
);
2793 /* Continue from the device following the last iteration */
2795 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
2796 if (dev
== p2p
->last_p2p_find_oper
) {
2802 if (p2p_pre_find_operation(p2p
, dev
) > 0) {
2803 p2p
->last_p2p_find_oper
= dev
;
2809 * Wrap around to the beginning of the list and continue until the last
2812 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
2813 if (p2p_pre_find_operation(p2p
, dev
) > 0) {
2814 p2p
->last_p2p_find_oper
= dev
;
2817 if (dev
== p2p
->last_p2p_find_oper
)
2821 p2p_listen_in_find(p2p
, 1);
2825 static void p2p_sd_cb(struct p2p_data
*p2p
, int success
)
2827 p2p_dbg(p2p
, "Service Discovery Query TX callback: success=%d",
2829 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2833 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2834 p2p
->sd_peer
= NULL
;
2835 p2p_continue_find(p2p
);
2839 if (p2p
->sd_peer
== NULL
) {
2840 p2p_dbg(p2p
, "No SD peer entry known");
2841 p2p_continue_find(p2p
);
2845 if (p2p
->sd_query
->for_all_peers
) {
2846 /* Update the pending broadcast SD query count for this device
2848 p2p
->sd_peer
->sd_pending_bcast_queries
--;
2851 * If there are no pending broadcast queries for this device,
2852 * mark it as done (-1).
2854 if (p2p
->sd_peer
->sd_pending_bcast_queries
== 0)
2855 p2p
->sd_peer
->sd_pending_bcast_queries
= -1;
2858 /* Wait for response from the peer */
2859 p2p_set_state(p2p
, P2P_SD_DURING_FIND
);
2860 p2p_set_timeout(p2p
, 0, 200000);
2865 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2866 * @p2p: P2P module context from p2p_init()
2868 static void p2p_retry_pd(struct p2p_data
*p2p
)
2870 struct p2p_device
*dev
;
2872 if (p2p
->state
!= P2P_IDLE
)
2876 * Retry the prov disc req attempt only for the peer that the user had
2880 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
2881 if (os_memcmp(p2p
->pending_pd_devaddr
,
2882 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
2884 if (!dev
->req_config_methods
)
2887 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
2888 MACSTR
" (config methods 0x%x)",
2889 MAC2STR(dev
->info
.p2p_device_addr
),
2890 dev
->req_config_methods
);
2891 p2p_send_prov_disc_req(p2p
, dev
,
2892 dev
->flags
& P2P_DEV_PD_FOR_JOIN
,
2893 p2p
->pd_force_freq
);
2899 static void p2p_prov_disc_cb(struct p2p_data
*p2p
, int success
)
2901 p2p_dbg(p2p
, "Provision Discovery Request TX callback: success=%d",
2905 * Postpone resetting the pending action state till after we actually
2906 * time out. This allows us to take some action like notifying any
2907 * interested parties about no response to the request.
2909 * When the timer (below) goes off we check in IDLE, SEARCH, or
2910 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2911 * requests in, if this was still pending and then raise notification.
2915 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2917 if (p2p
->user_initiated_pd
&&
2918 (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_LISTEN_ONLY
))
2920 /* Retry request from timeout to avoid busy loops */
2921 p2p
->pending_action_state
= P2P_PENDING_PD
;
2922 p2p_set_timeout(p2p
, 0, 50000);
2923 } else if (p2p
->state
!= P2P_IDLE
)
2924 p2p_continue_find(p2p
);
2925 else if (p2p
->user_initiated_pd
) {
2926 p2p
->pending_action_state
= P2P_PENDING_PD
;
2927 p2p_set_timeout(p2p
, 0, 300000);
2933 * This postponing, of resetting pending_action_state, needs to be
2934 * done only for user initiated PD requests and not internal ones.
2936 if (p2p
->user_initiated_pd
)
2937 p2p
->pending_action_state
= P2P_PENDING_PD
;
2939 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2941 /* Wait for response from the peer */
2942 if (p2p
->state
== P2P_SEARCH
)
2943 p2p_set_state(p2p
, P2P_PD_DURING_FIND
);
2944 p2p_set_timeout(p2p
, 0, 200000);
2948 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
2949 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
2952 if (os_reltime_before(rx_time
, &p2p
->find_start
)) {
2954 * The driver may have cached (e.g., in cfg80211 BSS table) the
2955 * scan results for relatively long time. To avoid reporting
2956 * stale information, update P2P peers only based on results
2957 * that have based on frames received after the last p2p_find
2958 * operation was started.
2960 p2p_dbg(p2p
, "Ignore old scan result for " MACSTR
2961 " (rx_time=%u.%06u)",
2962 MAC2STR(bssid
), (unsigned int) rx_time
->sec
,
2963 (unsigned int) rx_time
->usec
);
2967 p2p_add_device(p2p
, bssid
, freq
, rx_time
, level
, ies
, ies_len
, 1);
2973 void p2p_scan_res_handled(struct p2p_data
*p2p
)
2975 if (!p2p
->p2p_scan_running
) {
2976 p2p_dbg(p2p
, "p2p_scan was not running, but scan results received");
2978 p2p
->p2p_scan_running
= 0;
2979 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2981 if (p2p_run_after_scan(p2p
))
2983 if (p2p
->state
== P2P_SEARCH
)
2984 p2p_continue_find(p2p
);
2988 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
)
2992 #ifdef CONFIG_WIFI_DISPLAY
2993 if (p2p
->wfd_ie_probe_req
)
2994 wpabuf_put_buf(ies
, p2p
->wfd_ie_probe_req
);
2995 #endif /* CONFIG_WIFI_DISPLAY */
2997 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
2999 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3001 len
= p2p_buf_add_ie_hdr(ies
);
3002 p2p_buf_add_capability(ies
, p2p
->dev_capab
&
3003 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
3005 p2p_buf_add_device_id(ies
, dev_id
);
3006 if (p2p
->cfg
->reg_class
&& p2p
->cfg
->channel
)
3007 p2p_buf_add_listen_channel(ies
, p2p
->cfg
->country
,
3008 p2p
->cfg
->reg_class
,
3010 if (p2p
->ext_listen_interval
)
3011 p2p_buf_add_ext_listen_timing(ies
, p2p
->ext_listen_period
,
3012 p2p
->ext_listen_interval
);
3013 /* TODO: p2p_buf_add_operating_channel() if GO */
3014 p2p_buf_update_ie_hdr(ies
, len
);
3018 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
)
3022 #ifdef CONFIG_WIFI_DISPLAY
3023 if (p2p
&& p2p
->wfd_ie_probe_req
)
3024 len
+= wpabuf_len(p2p
->wfd_ie_probe_req
);
3025 #endif /* CONFIG_WIFI_DISPLAY */
3027 if (p2p
&& p2p
->vendor_elem
&&
3028 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3029 len
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3035 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
)
3037 return p2p_attr_text(p2p_ie
, buf
, end
);
3041 static void p2p_go_neg_req_cb(struct p2p_data
*p2p
, int success
)
3043 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3046 p2p_dbg(p2p
, "GO Negotiation Request TX callback: success=%d", success
);
3049 p2p_dbg(p2p
, "No pending GO Negotiation");
3054 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
3055 p2p_set_state(p2p
, P2P_IDLE
);
3058 } else if (dev
->go_neg_req_sent
) {
3059 /* Cancel the increment from p2p_connect_send() on failure */
3060 dev
->go_neg_req_sent
--;
3064 (dev
->info
.dev_capab
& P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
) &&
3065 !is_zero_ether_addr(dev
->member_in_go_dev
)) {
3066 p2p_dbg(p2p
, "Peer " MACSTR
" did not acknowledge request - try to use device discoverability through its GO",
3067 MAC2STR(dev
->info
.p2p_device_addr
));
3068 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3069 p2p_send_dev_disc_req(p2p
, dev
);
3074 * Use P2P find, if needed, to find the other device from its listen
3077 p2p_set_state(p2p
, P2P_CONNECT
);
3078 timeout
= success
? 500000 : 100000;
3079 if (!success
&& p2p
->go_neg_peer
&&
3080 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
)) {
3083 * Peer is expected to wait our response and we will skip the
3084 * listen phase. Add some randomness to the wait time here to
3085 * make it less likely to hit cases where we could end up in
3086 * sync with peer not listening.
3088 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
3090 timeout
+= r
% 100000;
3092 p2p_set_timeout(p2p
, 0, timeout
);
3096 static void p2p_go_neg_resp_cb(struct p2p_data
*p2p
, int success
)
3098 p2p_dbg(p2p
, "GO Negotiation Response TX callback: success=%d",
3100 if (!p2p
->go_neg_peer
&& p2p
->state
== P2P_PROVISIONING
) {
3101 p2p_dbg(p2p
, "Ignore TX callback event - GO Negotiation is not running anymore");
3104 p2p_set_state(p2p
, P2P_CONNECT
);
3105 p2p_set_timeout(p2p
, 0, 500000);
3109 static void p2p_go_neg_resp_failure_cb(struct p2p_data
*p2p
, int success
,
3112 p2p_dbg(p2p
, "GO Negotiation Response (failure) TX callback: success=%d", success
);
3113 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->status
!= P2P_SC_SUCCESS
) {
3114 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
->status
);
3115 } else if (success
) {
3116 struct p2p_device
*dev
;
3117 dev
= p2p_get_device(p2p
, addr
);
3119 dev
->status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
)
3120 dev
->flags
|= P2P_DEV_PEER_WAITING_RESPONSE
;
3125 static void p2p_go_neg_conf_cb(struct p2p_data
*p2p
,
3126 enum p2p_send_action_result result
)
3128 struct p2p_device
*dev
;
3130 p2p_dbg(p2p
, "GO Negotiation Confirm TX callback: result=%d", result
);
3131 if (result
== P2P_SEND_ACTION_FAILED
) {
3132 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3133 p2p_go_neg_failed(p2p
, -1);
3137 dev
= p2p
->go_neg_peer
;
3139 if (result
== P2P_SEND_ACTION_NO_ACK
) {
3141 * Retry GO Negotiation Confirmation
3142 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3143 * ACK for confirmation.
3145 if (dev
&& dev
->go_neg_conf
&&
3146 dev
->go_neg_conf_sent
<= P2P_GO_NEG_CNF_MAX_RETRY_COUNT
) {
3147 p2p_dbg(p2p
, "GO Negotiation Confirm retry %d",
3148 dev
->go_neg_conf_sent
);
3149 p2p
->pending_action_state
= P2P_PENDING_GO_NEG_CONFIRM
;
3150 if (p2p_send_action(p2p
, dev
->go_neg_conf_freq
,
3151 dev
->info
.p2p_device_addr
,
3153 dev
->info
.p2p_device_addr
,
3154 wpabuf_head(dev
->go_neg_conf
),
3155 wpabuf_len(dev
->go_neg_conf
), 0) >=
3157 dev
->go_neg_conf_sent
++;
3160 p2p_dbg(p2p
, "Failed to re-send Action frame");
3163 * Continue with the assumption that the first attempt
3164 * went through and just the ACK frame was lost.
3169 * It looks like the TX status for GO Negotiation Confirm is
3170 * often showing failure even when the peer has actually
3171 * received the frame. Since the peer may change channels
3172 * immediately after having received the frame, we may not see
3173 * an Ack for retries, so just dropping a single frame may
3174 * trigger this. To allow the group formation to succeed if the
3175 * peer did indeed receive the frame, continue regardless of
3178 p2p_dbg(p2p
, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
3181 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3186 p2p_go_complete(p2p
, dev
);
3190 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
3191 const u8
*src
, const u8
*bssid
,
3192 enum p2p_send_action_result result
)
3194 enum p2p_pending_action_state state
;
3197 p2p_dbg(p2p
, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
3198 " src=" MACSTR
" bssid=" MACSTR
" result=%d",
3199 p2p
->pending_action_state
, freq
, MAC2STR(dst
), MAC2STR(src
),
3200 MAC2STR(bssid
), result
);
3201 success
= result
== P2P_SEND_ACTION_SUCCESS
;
3202 state
= p2p
->pending_action_state
;
3203 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3205 case P2P_NO_PENDING_ACTION
:
3206 if (p2p
->send_action_in_progress
) {
3207 p2p
->send_action_in_progress
= 0;
3208 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3210 if (p2p
->after_scan_tx_in_progress
) {
3211 p2p
->after_scan_tx_in_progress
= 0;
3212 if (p2p
->start_after_scan
!= P2P_AFTER_SCAN_NOTHING
&&
3213 p2p_run_after_scan(p2p
))
3215 if (p2p
->state
== P2P_SEARCH
) {
3216 p2p_dbg(p2p
, "Continue find after after_scan_tx completion");
3217 p2p_continue_find(p2p
);
3221 case P2P_PENDING_GO_NEG_REQUEST
:
3222 p2p_go_neg_req_cb(p2p
, success
);
3224 case P2P_PENDING_GO_NEG_RESPONSE
:
3225 p2p_go_neg_resp_cb(p2p
, success
);
3227 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE
:
3228 p2p_go_neg_resp_failure_cb(p2p
, success
, dst
);
3230 case P2P_PENDING_GO_NEG_CONFIRM
:
3231 p2p_go_neg_conf_cb(p2p
, result
);
3233 case P2P_PENDING_SD
:
3234 p2p_sd_cb(p2p
, success
);
3236 case P2P_PENDING_PD
:
3237 p2p_prov_disc_cb(p2p
, success
);
3239 case P2P_PENDING_INVITATION_REQUEST
:
3240 p2p_invitation_req_cb(p2p
, success
);
3242 case P2P_PENDING_INVITATION_RESPONSE
:
3243 p2p_invitation_resp_cb(p2p
, success
);
3245 case P2P_PENDING_DEV_DISC_REQUEST
:
3246 p2p_dev_disc_req_cb(p2p
, success
);
3248 case P2P_PENDING_DEV_DISC_RESPONSE
:
3249 p2p_dev_disc_resp_cb(p2p
, success
);
3251 case P2P_PENDING_GO_DISC_REQ
:
3252 p2p_go_disc_req_cb(p2p
, success
);
3256 p2p
->after_scan_tx_in_progress
= 0;
3260 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
3261 unsigned int duration
)
3263 if (freq
== p2p
->pending_client_disc_freq
) {
3264 p2p_dbg(p2p
, "Client discoverability remain-awake completed");
3265 p2p
->pending_client_disc_freq
= 0;
3269 if (freq
!= p2p
->pending_listen_freq
) {
3270 p2p_dbg(p2p
, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
3271 freq
, duration
, p2p
->pending_listen_freq
);
3275 p2p_dbg(p2p
, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
3276 p2p
->pending_listen_sec
, p2p
->pending_listen_usec
,
3277 p2p
->pending_listen_freq
);
3279 p2p
->drv_in_listen
= freq
;
3280 if (p2p
->pending_listen_sec
|| p2p
->pending_listen_usec
) {
3282 * Add 20 msec extra wait to avoid race condition with driver
3283 * remain-on-channel end event, i.e., give driver more time to
3284 * complete the operation before our timeout expires.
3286 p2p_set_timeout(p2p
, p2p
->pending_listen_sec
,
3287 p2p
->pending_listen_usec
+ 20000);
3290 p2p
->pending_listen_freq
= 0;
3294 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
)
3296 p2p_dbg(p2p
, "Driver ended Listen state (freq=%u)", freq
);
3297 p2p
->drv_in_listen
= 0;
3299 return 0; /* Internal timeout will trigger the next step */
3301 if (p2p
->state
== P2P_CONNECT_LISTEN
&& p2p
->go_neg_peer
) {
3302 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3303 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3304 p2p_go_neg_failed(p2p
, -1);
3308 p2p_set_state(p2p
, P2P_CONNECT
);
3309 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3311 } else if (p2p
->state
== P2P_SEARCH
) {
3312 if (p2p
->p2p_scan_running
) {
3314 * Search is already in progress. This can happen if
3315 * an Action frame RX is reported immediately after
3316 * the end of a remain-on-channel operation and the
3317 * response frame to that is sent using an offchannel
3318 * operation while in p2p_find. Avoid an attempt to
3319 * restart a scan here.
3321 p2p_dbg(p2p
, "p2p_scan already in progress - do not try to start a new one");
3324 if (p2p
->pending_listen_freq
) {
3326 * Better wait a bit if the driver is unable to start
3327 * offchannel operation for some reason. p2p_search()
3328 * will be started from internal timeout.
3330 p2p_dbg(p2p
, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3331 p2p_set_timeout(p2p
, 0, 100000);
3334 if (p2p
->search_delay
) {
3335 p2p_dbg(p2p
, "Delay search operation by %u ms",
3337 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
3338 (p2p
->search_delay
% 1000) * 1000);
3349 static void p2p_timeout_connect(struct p2p_data
*p2p
)
3351 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3352 if (p2p
->go_neg_peer
&&
3353 (p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
3354 p2p_dbg(p2p
, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
3355 p2p_go_neg_failed(p2p
, -1);
3358 if (p2p
->go_neg_peer
&&
3359 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
) &&
3360 p2p
->go_neg_peer
->connect_reqs
< 120) {
3361 p2p_dbg(p2p
, "Peer expected to wait our response - skip listen");
3362 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3365 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->oob_go_neg_freq
> 0) {
3366 p2p_dbg(p2p
, "Skip connect-listen since GO Neg channel known (OOB)");
3367 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3368 p2p_set_timeout(p2p
, 0, 30000);
3371 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3372 p2p_listen_in_find(p2p
, 0);
3376 static void p2p_timeout_connect_listen(struct p2p_data
*p2p
)
3378 if (p2p
->go_neg_peer
) {
3379 if (p2p
->drv_in_listen
) {
3380 p2p_dbg(p2p
, "Driver is still in Listen state; wait for it to complete");
3384 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3385 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3386 p2p_go_neg_failed(p2p
, -1);
3390 p2p_set_state(p2p
, P2P_CONNECT
);
3391 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3393 p2p_set_state(p2p
, P2P_IDLE
);
3397 static void p2p_timeout_wait_peer_connect(struct p2p_data
*p2p
)
3399 p2p_set_state(p2p
, P2P_WAIT_PEER_IDLE
);
3401 if (p2p
->cfg
->is_concurrent_session_active
&&
3402 p2p
->cfg
->is_concurrent_session_active(p2p
->cfg
->cb_ctx
))
3403 p2p_set_timeout(p2p
, 0, 500000);
3405 p2p_set_timeout(p2p
, 0, 200000);
3409 static void p2p_timeout_wait_peer_idle(struct p2p_data
*p2p
)
3411 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3414 p2p_dbg(p2p
, "Unknown GO Neg peer - stop GO Neg wait");
3418 p2p_dbg(p2p
, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
3419 p2p_set_state(p2p
, P2P_WAIT_PEER_CONNECT
);
3420 p2p_listen_in_find(p2p
, 0);
3424 static void p2p_timeout_sd_during_find(struct p2p_data
*p2p
)
3426 p2p_dbg(p2p
, "Service Discovery Query timeout");
3428 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3429 p2p
->sd_peer
= NULL
;
3431 p2p_continue_find(p2p
);
3435 static void p2p_timeout_prov_disc_during_find(struct p2p_data
*p2p
)
3437 p2p_dbg(p2p
, "Provision Discovery Request timeout");
3438 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3439 p2p_continue_find(p2p
);
3443 static void p2p_timeout_prov_disc_req(struct p2p_data
*p2p
)
3445 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3448 * For user initiated PD requests that we have not gotten any responses
3449 * for while in IDLE state, we retry them a couple of times before
3452 if (!p2p
->user_initiated_pd
)
3455 p2p_dbg(p2p
, "User initiated Provision Discovery Request timeout");
3457 if (p2p
->pd_retries
) {
3461 struct p2p_device
*dev
;
3464 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3465 if (os_memcmp(p2p
->pending_pd_devaddr
,
3466 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
3468 if (dev
->req_config_methods
&&
3469 (dev
->flags
& P2P_DEV_PD_FOR_JOIN
))
3473 if (p2p
->cfg
->prov_disc_fail
)
3474 p2p
->cfg
->prov_disc_fail(p2p
->cfg
->cb_ctx
,
3475 p2p
->pending_pd_devaddr
,
3477 P2P_PROV_DISC_TIMEOUT_JOIN
:
3478 P2P_PROV_DISC_TIMEOUT
);
3479 p2p_reset_pending_pd(p2p
);
3484 static void p2p_timeout_invite(struct p2p_data
*p2p
)
3486 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3487 p2p_set_state(p2p
, P2P_INVITE_LISTEN
);
3488 if (p2p
->inv_role
== P2P_INVITE_ROLE_ACTIVE_GO
) {
3490 * Better remain on operating channel instead of listen channel
3491 * when running a group.
3493 p2p_dbg(p2p
, "Inviting in active GO role - wait on operating channel");
3494 p2p_set_timeout(p2p
, 0, 100000);
3497 p2p_listen_in_find(p2p
, 0);
3501 static void p2p_timeout_invite_listen(struct p2p_data
*p2p
)
3503 if (p2p
->invite_peer
&& p2p
->invite_peer
->invitation_reqs
< 100) {
3504 p2p_set_state(p2p
, P2P_INVITE
);
3505 p2p_invite_send(p2p
, p2p
->invite_peer
,
3506 p2p
->invite_go_dev_addr
, p2p
->invite_dev_pw_id
);
3508 if (p2p
->invite_peer
) {
3509 p2p_dbg(p2p
, "Invitation Request retry limit reached");
3510 if (p2p
->cfg
->invitation_result
)
3511 p2p
->cfg
->invitation_result(
3512 p2p
->cfg
->cb_ctx
, -1, NULL
, NULL
,
3513 p2p
->invite_peer
->info
.p2p_device_addr
,
3516 p2p_set_state(p2p
, P2P_IDLE
);
3521 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
)
3523 struct p2p_data
*p2p
= eloop_ctx
;
3525 p2p_dbg(p2p
, "Timeout (state=%s)", p2p_state_txt(p2p
->state
));
3528 if (p2p
->drv_in_listen
) {
3529 p2p_dbg(p2p
, "Driver is still in listen state - stop it");
3530 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
3533 switch (p2p
->state
) {
3535 /* Check if we timed out waiting for PD req */
3536 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3537 p2p_timeout_prov_disc_req(p2p
);
3540 /* Check if we timed out waiting for PD req */
3541 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3542 p2p_timeout_prov_disc_req(p2p
);
3543 if (p2p
->search_delay
&& !p2p
->in_search_delay
) {
3544 p2p_dbg(p2p
, "Delay search operation by %u ms",
3546 p2p
->in_search_delay
= 1;
3547 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
3548 (p2p
->search_delay
% 1000) * 1000);
3551 p2p
->in_search_delay
= 0;
3555 p2p_timeout_connect(p2p
);
3557 case P2P_CONNECT_LISTEN
:
3558 p2p_timeout_connect_listen(p2p
);
3562 case P2P_LISTEN_ONLY
:
3563 /* Check if we timed out waiting for PD req */
3564 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3565 p2p_timeout_prov_disc_req(p2p
);
3567 if (p2p
->ext_listen_only
) {
3568 p2p_dbg(p2p
, "Extended Listen Timing - Listen State completed");
3569 p2p
->ext_listen_only
= 0;
3570 p2p_set_state(p2p
, P2P_IDLE
);
3573 case P2P_WAIT_PEER_CONNECT
:
3574 p2p_timeout_wait_peer_connect(p2p
);
3576 case P2P_WAIT_PEER_IDLE
:
3577 p2p_timeout_wait_peer_idle(p2p
);
3579 case P2P_SD_DURING_FIND
:
3580 p2p_timeout_sd_during_find(p2p
);
3582 case P2P_PROVISIONING
:
3584 case P2P_PD_DURING_FIND
:
3585 p2p_timeout_prov_disc_during_find(p2p
);
3588 p2p_timeout_invite(p2p
);
3590 case P2P_INVITE_LISTEN
:
3591 p2p_timeout_invite_listen(p2p
);
3597 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
)
3599 struct p2p_device
*dev
;
3601 dev
= p2p_get_device(p2p
, peer_addr
);
3602 p2p_dbg(p2p
, "Local request to reject connection attempts by peer "
3603 MACSTR
, MAC2STR(peer_addr
));
3605 p2p_dbg(p2p
, "Peer " MACSTR
" unknown", MAC2STR(peer_addr
));
3608 dev
->status
= P2P_SC_FAIL_REJECTED_BY_USER
;
3609 dev
->flags
|= P2P_DEV_USER_REJECTED
;
3614 const char * p2p_wps_method_text(enum p2p_wps_method method
)
3619 case WPS_PIN_DISPLAY
:
3621 case WPS_PIN_KEYPAD
:
3633 static const char * p2p_go_state_text(enum p2p_go_state go_state
)
3648 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
3649 const u8
*addr
, int next
)
3651 struct p2p_device
*dev
;
3654 dev
= p2p_get_device(p2p
, addr
);
3656 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
3659 dev
= dl_list_first(&dev
->list
, struct p2p_device
, list
);
3660 if (&dev
->list
== &p2p
->devices
)
3671 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
3672 char *buf
, size_t buflen
)
3674 struct p2p_device
*dev
;
3677 struct os_reltime now
;
3682 dev
= (struct p2p_device
*) (((u8
*) info
) -
3683 offsetof(struct p2p_device
, info
));
3688 os_get_reltime(&now
);
3689 res
= os_snprintf(pos
, end
- pos
,
3693 "interface_addr=" MACSTR
"\n"
3694 "member_in_go_dev=" MACSTR
"\n"
3695 "member_in_go_iface=" MACSTR
"\n"
3696 "go_neg_req_sent=%d\n"
3699 "intended_addr=" MACSTR
"\n"
3702 "req_config_methods=0x%x\n"
3703 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
3705 "invitation_reqs=%u\n",
3706 (int) (now
.sec
- dev
->last_seen
.sec
),
3708 p2p_wps_method_text(dev
->wps_method
),
3709 MAC2STR(dev
->interface_addr
),
3710 MAC2STR(dev
->member_in_go_dev
),
3711 MAC2STR(dev
->member_in_go_iface
),
3712 dev
->go_neg_req_sent
,
3713 p2p_go_state_text(dev
->go_state
),
3715 MAC2STR(dev
->intended_addr
),
3716 dev
->country
[0] ? dev
->country
[0] : '_',
3717 dev
->country
[1] ? dev
->country
[1] : '_',
3719 dev
->req_config_methods
,
3720 dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
?
3721 "[PROBE_REQ_ONLY]" : "",
3722 dev
->flags
& P2P_DEV_REPORTED
? "[REPORTED]" : "",
3723 dev
->flags
& P2P_DEV_NOT_YET_READY
?
3724 "[NOT_YET_READY]" : "",
3725 dev
->flags
& P2P_DEV_PD_PEER_DISPLAY
?
3726 "[PD_PEER_DISPLAY]" : "",
3727 dev
->flags
& P2P_DEV_PD_PEER_KEYPAD
?
3728 "[PD_PEER_KEYPAD]" : "",
3729 dev
->flags
& P2P_DEV_USER_REJECTED
?
3730 "[USER_REJECTED]" : "",
3731 dev
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
?
3732 "[PEER_WAITING_RESPONSE]" : "",
3733 dev
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
?
3734 "[PREFER_PERSISTENT_GROUP]" : "",
3735 dev
->flags
& P2P_DEV_WAIT_GO_NEG_RESPONSE
?
3736 "[WAIT_GO_NEG_RESPONSE]" : "",
3737 dev
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
?
3738 "[WAIT_GO_NEG_CONFIRM]" : "",
3739 dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
?
3740 "[GROUP_CLIENT_ONLY]" : "",
3741 dev
->flags
& P2P_DEV_FORCE_FREQ
?
3742 "[FORCE_FREQ]" : "",
3743 dev
->flags
& P2P_DEV_PD_FOR_JOIN
?
3744 "[PD_FOR_JOIN]" : "",
3746 dev
->invitation_reqs
);
3747 if (res
< 0 || res
>= end
- pos
)
3751 if (dev
->ext_listen_period
) {
3752 res
= os_snprintf(pos
, end
- pos
,
3753 "ext_listen_period=%u\n"
3754 "ext_listen_interval=%u\n",
3755 dev
->ext_listen_period
,
3756 dev
->ext_listen_interval
);
3757 if (res
< 0 || res
>= end
- pos
)
3762 if (dev
->oper_ssid_len
) {
3763 res
= os_snprintf(pos
, end
- pos
,
3765 wpa_ssid_txt(dev
->oper_ssid
,
3766 dev
->oper_ssid_len
));
3767 if (res
< 0 || res
>= end
- pos
)
3772 #ifdef CONFIG_WIFI_DISPLAY
3773 if (dev
->info
.wfd_subelems
) {
3774 res
= os_snprintf(pos
, end
- pos
, "wfd_subelems=");
3775 if (res
< 0 || res
>= end
- pos
)
3779 pos
+= wpa_snprintf_hex(pos
, end
- pos
,
3780 wpabuf_head(dev
->info
.wfd_subelems
),
3781 wpabuf_len(dev
->info
.wfd_subelems
));
3783 res
= os_snprintf(pos
, end
- pos
, "\n");
3784 if (res
< 0 || res
>= end
- pos
)
3788 #endif /* CONFIG_WIFI_DISPLAY */
3794 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
)
3796 return p2p_get_device(p2p
, addr
) != NULL
;
3800 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
)
3803 p2p_dbg(p2p
, "Client discoverability enabled");
3804 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3806 p2p_dbg(p2p
, "Client discoverability disabled");
3807 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3812 static struct wpabuf
* p2p_build_presence_req(u32 duration1
, u32 interval1
,
3813 u32 duration2
, u32 interval2
)
3816 struct p2p_noa_desc desc1
, desc2
, *ptr1
= NULL
, *ptr2
= NULL
;
3819 req
= wpabuf_alloc(100);
3823 if (duration1
|| interval1
) {
3824 os_memset(&desc1
, 0, sizeof(desc1
));
3825 desc1
.count_type
= 1;
3826 desc1
.duration
= duration1
;
3827 desc1
.interval
= interval1
;
3830 if (duration2
|| interval2
) {
3831 os_memset(&desc2
, 0, sizeof(desc2
));
3832 desc2
.count_type
= 2;
3833 desc2
.duration
= duration2
;
3834 desc2
.interval
= interval2
;
3839 p2p_buf_add_action_hdr(req
, P2P_PRESENCE_REQ
, 1);
3840 len
= p2p_buf_add_ie_hdr(req
);
3841 p2p_buf_add_noa(req
, 0, 0, 0, ptr1
, ptr2
);
3842 p2p_buf_update_ie_hdr(req
, len
);
3848 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
3849 const u8
*own_interface_addr
, unsigned int freq
,
3850 u32 duration1
, u32 interval1
, u32 duration2
,
3855 p2p_dbg(p2p
, "Send Presence Request to GO " MACSTR
3856 " (own interface " MACSTR
") freq=%u dur1=%u int1=%u "
3858 MAC2STR(go_interface_addr
), MAC2STR(own_interface_addr
),
3859 freq
, duration1
, interval1
, duration2
, interval2
);
3861 req
= p2p_build_presence_req(duration1
, interval1
, duration2
,
3866 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3867 if (p2p_send_action(p2p
, freq
, go_interface_addr
, own_interface_addr
,
3869 wpabuf_head(req
), wpabuf_len(req
), 200) < 0) {
3870 p2p_dbg(p2p
, "Failed to send Action frame");
3878 static struct wpabuf
* p2p_build_presence_resp(u8 status
, const u8
*noa
,
3879 size_t noa_len
, u8 dialog_token
)
3881 struct wpabuf
*resp
;
3884 resp
= wpabuf_alloc(100 + noa_len
);
3888 p2p_buf_add_action_hdr(resp
, P2P_PRESENCE_RESP
, dialog_token
);
3889 len
= p2p_buf_add_ie_hdr(resp
);
3890 p2p_buf_add_status(resp
, status
);
3892 wpabuf_put_u8(resp
, P2P_ATTR_NOTICE_OF_ABSENCE
);
3893 wpabuf_put_le16(resp
, noa_len
);
3894 wpabuf_put_data(resp
, noa
, noa_len
);
3896 p2p_buf_add_noa(resp
, 0, 0, 0, NULL
, NULL
);
3897 p2p_buf_update_ie_hdr(resp
, len
);
3903 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
3904 const u8
*sa
, const u8
*data
, size_t len
,
3907 struct p2p_message msg
;
3909 struct wpabuf
*resp
;
3911 struct p2p_group
*group
= NULL
;
3916 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Request");
3918 for (g
= 0; g
< p2p
->num_groups
; g
++) {
3919 if (os_memcmp(da
, p2p_group_get_interface_addr(p2p
->groups
[g
]),
3921 group
= p2p
->groups
[g
];
3925 if (group
== NULL
) {
3926 p2p_dbg(p2p
, "Ignore P2P Presence Request for unknown group "
3927 MACSTR
, MAC2STR(da
));
3931 if (p2p_parse(data
, len
, &msg
) < 0) {
3932 p2p_dbg(p2p
, "Failed to parse P2P Presence Request");
3933 status
= P2P_SC_FAIL_INVALID_PARAMS
;
3938 if (msg
.noa
== NULL
) {
3939 p2p_dbg(p2p
, "No NoA attribute in P2P Presence Request");
3940 status
= P2P_SC_FAIL_INVALID_PARAMS
;
3944 status
= p2p_group_presence_req(group
, sa
, msg
.noa
, msg
.noa_len
);
3947 if (p2p
->cfg
->get_noa
)
3948 noa_len
= p2p
->cfg
->get_noa(p2p
->cfg
->cb_ctx
, da
, noa
,
3952 resp
= p2p_build_presence_resp(status
, noa_len
> 0 ? noa
: NULL
,
3953 noa_len
> 0 ? noa_len
: 0,
3956 p2p_parse_free(&msg
);
3960 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3961 if (p2p_send_action(p2p
, rx_freq
, sa
, da
, da
,
3962 wpabuf_head(resp
), wpabuf_len(resp
), 200) < 0) {
3963 p2p_dbg(p2p
, "Failed to send Action frame");
3969 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
3970 const u8
*sa
, const u8
*data
, size_t len
)
3972 struct p2p_message msg
;
3974 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Response");
3976 if (p2p_parse(data
, len
, &msg
) < 0) {
3977 p2p_dbg(p2p
, "Failed to parse P2P Presence Response");
3981 if (msg
.status
== NULL
|| msg
.noa
== NULL
) {
3982 p2p_dbg(p2p
, "No Status or NoA attribute in P2P Presence Response");
3983 p2p_parse_free(&msg
);
3987 if (p2p
->cfg
->presence_resp
) {
3988 p2p
->cfg
->presence_resp(p2p
->cfg
->cb_ctx
, sa
, *msg
.status
,
3989 msg
.noa
, msg
.noa_len
);
3993 p2p_dbg(p2p
, "P2P Presence Request was rejected: status %u",
3995 p2p_parse_free(&msg
);
3999 p2p_dbg(p2p
, "P2P Presence Request was accepted");
4000 wpa_hexdump(MSG_DEBUG
, "P2P: P2P Presence Response - NoA",
4001 msg
.noa
, msg
.noa_len
);
4002 /* TODO: process NoA */
4003 p2p_parse_free(&msg
);
4007 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
4009 struct p2p_data
*p2p
= eloop_ctx
;
4011 if (p2p
->ext_listen_interval
) {
4012 /* Schedule next extended listen timeout */
4013 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4014 p2p
->ext_listen_interval_usec
,
4015 p2p_ext_listen_timeout
, p2p
, NULL
);
4018 if ((p2p
->cfg
->is_p2p_in_progress
&&
4019 p2p
->cfg
->is_p2p_in_progress(p2p
->cfg
->cb_ctx
)) ||
4020 (p2p
->pending_action_state
== P2P_PENDING_PD
&&
4021 p2p
->pd_retries
> 0)) {
4022 p2p_dbg(p2p
, "Operation in progress - skip Extended Listen timeout (%s)",
4023 p2p_state_txt(p2p
->state
));
4027 if (p2p
->state
== P2P_LISTEN_ONLY
&& p2p
->ext_listen_only
) {
4029 * This should not really happen, but it looks like the Listen
4030 * command may fail is something else (e.g., a scan) was
4031 * running at an inconvenient time. As a workaround, allow new
4032 * Extended Listen operation to be started.
4034 p2p_dbg(p2p
, "Previous Extended Listen operation had not been completed - try again");
4035 p2p
->ext_listen_only
= 0;
4036 p2p_set_state(p2p
, P2P_IDLE
);
4039 if (p2p
->state
!= P2P_IDLE
) {
4040 p2p_dbg(p2p
, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p
->state
));
4044 p2p_dbg(p2p
, "Extended Listen timeout");
4045 p2p
->ext_listen_only
= 1;
4046 if (p2p_listen(p2p
, p2p
->ext_listen_period
) < 0) {
4047 p2p_dbg(p2p
, "Failed to start Listen state for Extended Listen Timing");
4048 p2p
->ext_listen_only
= 0;
4053 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
4054 unsigned int interval
)
4056 if (period
> 65535 || interval
> 65535 || period
> interval
||
4057 (period
== 0 && interval
> 0) || (period
> 0 && interval
== 0)) {
4058 p2p_dbg(p2p
, "Invalid Extended Listen Timing request: period=%u interval=%u",
4063 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
4065 if (interval
== 0) {
4066 p2p_dbg(p2p
, "Disabling Extended Listen Timing");
4067 p2p
->ext_listen_period
= 0;
4068 p2p
->ext_listen_interval
= 0;
4072 p2p_dbg(p2p
, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4074 p2p
->ext_listen_period
= period
;
4075 p2p
->ext_listen_interval
= interval
;
4076 p2p
->ext_listen_interval_sec
= interval
/ 1000;
4077 p2p
->ext_listen_interval_usec
= (interval
% 1000) * 1000;
4079 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4080 p2p
->ext_listen_interval_usec
,
4081 p2p_ext_listen_timeout
, p2p
, NULL
);
4087 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4088 const u8
*ie
, size_t ie_len
)
4090 struct p2p_message msg
;
4092 if (bssid
== NULL
|| ie
== NULL
)
4095 os_memset(&msg
, 0, sizeof(msg
));
4096 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4098 if (msg
.minor_reason_code
== NULL
) {
4099 p2p_parse_free(&msg
);
4103 p2p_dbg(p2p
, "Deauthentication notification BSSID " MACSTR
4104 " reason_code=%u minor_reason_code=%u",
4105 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4107 p2p_parse_free(&msg
);
4111 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4112 const u8
*ie
, size_t ie_len
)
4114 struct p2p_message msg
;
4116 if (bssid
== NULL
|| ie
== NULL
)
4119 os_memset(&msg
, 0, sizeof(msg
));
4120 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4122 if (msg
.minor_reason_code
== NULL
) {
4123 p2p_parse_free(&msg
);
4127 p2p_dbg(p2p
, "Disassociation notification BSSID " MACSTR
4128 " reason_code=%u minor_reason_code=%u",
4129 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4131 p2p_parse_free(&msg
);
4135 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
)
4138 p2p_dbg(p2p
, "Managed P2P Device operations enabled");
4139 p2p
->dev_capab
|= P2P_DEV_CAPAB_INFRA_MANAGED
;
4141 p2p_dbg(p2p
, "Managed P2P Device operations disabled");
4142 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_INFRA_MANAGED
;
4147 int p2p_config_get_random_social(struct p2p_config
*p2p
, u8
*op_class
,
4150 return p2p_channel_random_social(&p2p
->channels
, op_class
, op_channel
);
4154 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
,
4157 if (p2p_channel_to_freq(reg_class
, channel
) < 0)
4160 p2p_dbg(p2p
, "Set Listen channel: reg_class %u channel %u",
4161 reg_class
, channel
);
4164 * Listen channel was set in configuration or set by control interface;
4165 * cannot override it.
4167 if (p2p
->cfg
->channel_forced
&& forced
== 0)
4170 if (p2p
->state
== P2P_IDLE
) {
4171 p2p
->cfg
->reg_class
= reg_class
;
4172 p2p
->cfg
->channel
= channel
;
4173 p2p
->cfg
->channel_forced
= forced
;
4175 p2p_dbg(p2p
, "Defer setting listen channel");
4176 p2p
->pending_reg_class
= reg_class
;
4177 p2p
->pending_channel
= channel
;
4178 p2p
->pending_channel_forced
= forced
;
4185 u8
p2p_get_listen_channel(struct p2p_data
*p2p
)
4187 return p2p
->cfg
->channel
;
4191 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
)
4193 p2p_dbg(p2p
, "New SSID postfix: %s", wpa_ssid_txt(postfix
, len
));
4194 if (postfix
== NULL
) {
4195 p2p
->cfg
->ssid_postfix_len
= 0;
4198 if (len
> sizeof(p2p
->cfg
->ssid_postfix
))
4200 os_memcpy(p2p
->cfg
->ssid_postfix
, postfix
, len
);
4201 p2p
->cfg
->ssid_postfix_len
= len
;
4206 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
4209 if (p2p_channel_to_freq(op_reg_class
, op_channel
) < 0)
4212 p2p_dbg(p2p
, "Set Operating channel: reg_class %u channel %u",
4213 op_reg_class
, op_channel
);
4214 p2p
->cfg
->op_reg_class
= op_reg_class
;
4215 p2p
->cfg
->op_channel
= op_channel
;
4216 p2p
->cfg
->cfg_op_channel
= cfg_op_channel
;
4221 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
4222 const struct p2p_channel
*pref_chan
)
4224 struct p2p_channel
*n
;
4227 n
= os_malloc(num_pref_chan
* sizeof(struct p2p_channel
));
4230 os_memcpy(n
, pref_chan
,
4231 num_pref_chan
* sizeof(struct p2p_channel
));
4235 os_free(p2p
->cfg
->pref_chan
);
4236 p2p
->cfg
->pref_chan
= n
;
4237 p2p
->cfg
->num_pref_chan
= num_pref_chan
;
4243 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
4244 const struct wpa_freq_range_list
*list
)
4246 struct wpa_freq_range
*tmp
;
4248 if (list
== NULL
|| list
->num
== 0) {
4249 os_free(p2p
->no_go_freq
.range
);
4250 p2p
->no_go_freq
.range
= NULL
;
4251 p2p
->no_go_freq
.num
= 0;
4255 tmp
= os_calloc(list
->num
, sizeof(struct wpa_freq_range
));
4258 os_memcpy(tmp
, list
->range
, list
->num
* sizeof(struct wpa_freq_range
));
4259 os_free(p2p
->no_go_freq
.range
);
4260 p2p
->no_go_freq
.range
= tmp
;
4261 p2p
->no_go_freq
.num
= list
->num
;
4262 p2p_dbg(p2p
, "Updated no GO chan list");
4268 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
4271 struct p2p_device
*dev
= p2p_get_device(p2p
, dev_addr
);
4272 if (dev
== NULL
|| is_zero_ether_addr(dev
->interface_addr
))
4274 os_memcpy(iface_addr
, dev
->interface_addr
, ETH_ALEN
);
4279 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
4282 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4285 os_memcpy(dev_addr
, dev
->info
.p2p_device_addr
, ETH_ALEN
);
4290 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
)
4292 os_memcpy(p2p
->peer_filter
, addr
, ETH_ALEN
);
4293 if (is_zero_ether_addr(p2p
->peer_filter
))
4294 p2p_dbg(p2p
, "Disable peer filter");
4296 p2p_dbg(p2p
, "Enable peer filter for " MACSTR
,
4297 MAC2STR(p2p
->peer_filter
));
4301 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
)
4303 p2p_dbg(p2p
, "Cross connection %s", enabled
? "enabled" : "disabled");
4304 if (p2p
->cross_connect
== enabled
)
4306 p2p
->cross_connect
= enabled
;
4307 /* TODO: may need to tear down any action group where we are GO(?) */
4311 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
)
4313 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4316 if (dev
->oper_freq
<= 0)
4318 return dev
->oper_freq
;
4322 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
)
4324 p2p_dbg(p2p
, "Intra BSS distribution %s",
4325 enabled
? "enabled" : "disabled");
4326 p2p
->cfg
->p2p_intra_bss
= enabled
;
4330 void p2p_update_channel_list(struct p2p_data
*p2p
,
4331 const struct p2p_channels
*chan
,
4332 const struct p2p_channels
*cli_chan
)
4334 p2p_dbg(p2p
, "Update channel list");
4335 os_memcpy(&p2p
->cfg
->channels
, chan
, sizeof(struct p2p_channels
));
4336 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
4337 os_memcpy(&p2p
->cfg
->cli_channels
, cli_chan
,
4338 sizeof(struct p2p_channels
));
4339 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
4343 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
4344 const u8
*src
, const u8
*bssid
, const u8
*buf
,
4345 size_t len
, unsigned int wait_time
)
4347 if (p2p
->p2p_scan_running
) {
4348 p2p_dbg(p2p
, "Delay Action frame TX until p2p_scan completes");
4349 if (p2p
->after_scan_tx
) {
4350 p2p_dbg(p2p
, "Dropped previous pending Action frame TX");
4351 os_free(p2p
->after_scan_tx
);
4353 p2p
->after_scan_tx
= os_malloc(sizeof(*p2p
->after_scan_tx
) +
4355 if (p2p
->after_scan_tx
== NULL
)
4357 p2p
->after_scan_tx
->freq
= freq
;
4358 os_memcpy(p2p
->after_scan_tx
->dst
, dst
, ETH_ALEN
);
4359 os_memcpy(p2p
->after_scan_tx
->src
, src
, ETH_ALEN
);
4360 os_memcpy(p2p
->after_scan_tx
->bssid
, bssid
, ETH_ALEN
);
4361 p2p
->after_scan_tx
->len
= len
;
4362 p2p
->after_scan_tx
->wait_time
= wait_time
;
4363 os_memcpy(p2p
->after_scan_tx
+ 1, buf
, len
);
4367 return p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
, freq
, dst
, src
, bssid
,
4368 buf
, len
, wait_time
);
4372 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
4375 p2p_dbg(p2p
, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4376 freq_24
, freq_5
, freq_overall
);
4377 p2p
->best_freq_24
= freq_24
;
4378 p2p
->best_freq_5
= freq_5
;
4379 p2p
->best_freq_overall
= freq_overall
;
4383 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
)
4385 p2p_dbg(p2p
, "Own frequency preference: %d MHz", freq
);
4386 p2p
->own_freq_preference
= freq
;
4390 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
)
4392 if (p2p
== NULL
|| p2p
->go_neg_peer
== NULL
)
4394 return p2p
->go_neg_peer
->info
.p2p_device_addr
;
4398 const struct p2p_peer_info
*
4399 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
)
4401 struct p2p_device
*dev
;
4404 dev
= p2p_get_device(p2p
, addr
);
4409 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)
4415 dev
= dl_list_first(&dev
->list
,
4418 if (!dev
|| &dev
->list
== &p2p
->devices
)
4420 } while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
);
4423 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
4426 while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
4427 dev
= dl_list_first(&dev
->list
,
4430 if (!dev
|| &dev
->list
== &p2p
->devices
)
4439 int p2p_in_progress(struct p2p_data
*p2p
)
4443 if (p2p
->state
== P2P_SEARCH
)
4445 return p2p
->state
!= P2P_IDLE
&& p2p
->state
!= P2P_PROVISIONING
;
4449 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
4453 p2p
->go_timeout
= go_timeout
;
4454 p2p
->client_timeout
= client_timeout
;
4459 #ifdef CONFIG_WIFI_DISPLAY
4461 static void p2p_update_wfd_ie_groups(struct p2p_data
*p2p
)
4464 struct p2p_group
*group
;
4466 for (g
= 0; g
< p2p
->num_groups
; g
++) {
4467 group
= p2p
->groups
[g
];
4468 p2p_group_force_beacon_update_ies(group
);
4473 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4475 wpabuf_free(p2p
->wfd_ie_beacon
);
4476 p2p
->wfd_ie_beacon
= ie
;
4477 p2p_update_wfd_ie_groups(p2p
);
4482 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4484 wpabuf_free(p2p
->wfd_ie_probe_req
);
4485 p2p
->wfd_ie_probe_req
= ie
;
4490 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4492 wpabuf_free(p2p
->wfd_ie_probe_resp
);
4493 p2p
->wfd_ie_probe_resp
= ie
;
4494 p2p_update_wfd_ie_groups(p2p
);
4499 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4501 wpabuf_free(p2p
->wfd_ie_assoc_req
);
4502 p2p
->wfd_ie_assoc_req
= ie
;
4507 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4509 wpabuf_free(p2p
->wfd_ie_invitation
);
4510 p2p
->wfd_ie_invitation
= ie
;
4515 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4517 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
4518 p2p
->wfd_ie_prov_disc_req
= ie
;
4523 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4525 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
4526 p2p
->wfd_ie_prov_disc_resp
= ie
;
4531 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4533 wpabuf_free(p2p
->wfd_ie_go_neg
);
4534 p2p
->wfd_ie_go_neg
= ie
;
4539 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
4541 wpabuf_free(p2p
->wfd_dev_info
);
4543 p2p
->wfd_dev_info
= wpabuf_dup(elem
);
4544 if (p2p
->wfd_dev_info
== NULL
)
4547 p2p
->wfd_dev_info
= NULL
;
4553 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
4555 wpabuf_free(p2p
->wfd_assoc_bssid
);
4557 p2p
->wfd_assoc_bssid
= wpabuf_dup(elem
);
4558 if (p2p
->wfd_assoc_bssid
== NULL
)
4561 p2p
->wfd_assoc_bssid
= NULL
;
4567 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
4568 const struct wpabuf
*elem
)
4570 wpabuf_free(p2p
->wfd_coupled_sink_info
);
4572 p2p
->wfd_coupled_sink_info
= wpabuf_dup(elem
);
4573 if (p2p
->wfd_coupled_sink_info
== NULL
)
4576 p2p
->wfd_coupled_sink_info
= NULL
;
4581 #endif /* CONFIG_WIFI_DISPLAY */
4584 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
4587 if (min_disc_int
> max_disc_int
|| min_disc_int
< 0 || max_disc_int
< 0)
4590 p2p
->min_disc_int
= min_disc_int
;
4591 p2p
->max_disc_int
= max_disc_int
;
4592 p2p
->max_disc_tu
= max_disc_tu
;
4593 p2p_dbg(p2p
, "Set discoverable interval: min=%d max=%d max_tu=%d",
4594 min_disc_int
, max_disc_int
, max_disc_tu
);
4600 void p2p_dbg(struct p2p_data
*p2p
, const char *fmt
, ...)
4605 if (!p2p
->cfg
->debug_print
)
4609 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
4610 buf
[sizeof(buf
) - 1] = '\0';
4612 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_DEBUG
, buf
);
4616 void p2p_info(struct p2p_data
*p2p
, const char *fmt
, ...)
4621 if (!p2p
->cfg
->debug_print
)
4625 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
4626 buf
[sizeof(buf
) - 1] = '\0';
4628 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_INFO
, buf
);
4632 void p2p_err(struct p2p_data
*p2p
, const char *fmt
, ...)
4637 if (!p2p
->cfg
->debug_print
)
4641 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
4642 buf
[sizeof(buf
) - 1] = '\0';
4644 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_ERROR
, buf
);
4648 void p2p_loop_on_known_peers(struct p2p_data
*p2p
,
4649 void (*peer_callback
)(struct p2p_peer_info
*peer
,
4653 struct p2p_device
*dev
, *n
;
4655 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
4656 peer_callback(&dev
->info
, user_data
);
4661 #ifdef CONFIG_WPS_NFC
4663 static struct wpabuf
* p2p_build_nfc_handover(struct p2p_data
*p2p
,
4665 const u8
*go_dev_addr
,
4666 const u8
*ssid
, size_t ssid_len
)
4669 u8 op_class
, channel
;
4670 enum p2p_role_indication role
= P2P_DEVICE_NOT_IN_GROUP
;
4672 buf
= wpabuf_alloc(1000);
4676 op_class
= p2p
->cfg
->reg_class
;
4677 channel
= p2p
->cfg
->channel
;
4679 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
4680 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
4681 p2p_buf_add_device_info(buf
, p2p
, NULL
);
4683 if (p2p
->num_groups
> 0) {
4684 int freq
= p2p_group_get_freq(p2p
->groups
[0]);
4685 role
= P2P_GO_IN_A_GROUP
;
4686 if (p2p_freq_to_channel(freq
, &op_class
, &channel
) < 0) {
4688 "Unknown GO operating frequency %d MHz for NFC handover",
4693 } else if (client_freq
> 0) {
4694 role
= P2P_CLIENT_IN_A_GROUP
;
4695 if (p2p_freq_to_channel(client_freq
, &op_class
, &channel
) < 0) {
4697 "Unknown client operating frequency %d MHz for NFC handover",
4704 p2p_buf_add_oob_go_neg_channel(buf
, p2p
->cfg
->country
, op_class
,
4707 if (p2p
->num_groups
> 0) {
4708 /* Limit number of clients to avoid very long message */
4709 p2p_buf_add_group_info(p2p
->groups
[0], buf
, 5);
4710 p2p_group_buf_add_id(p2p
->groups
[0], buf
);
4711 } else if (client_freq
> 0 &&
4712 go_dev_addr
&& !is_zero_ether_addr(go_dev_addr
) &&
4713 ssid
&& ssid_len
> 0) {
4715 * Add the optional P2P Group ID to indicate in which group this
4716 * device is a P2P Client.
4718 p2p_buf_add_group_id(buf
, go_dev_addr
, ssid
, ssid_len
);
4725 struct wpabuf
* p2p_build_nfc_handover_req(struct p2p_data
*p2p
,
4727 const u8
*go_dev_addr
,
4728 const u8
*ssid
, size_t ssid_len
)
4730 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
4735 struct wpabuf
* p2p_build_nfc_handover_sel(struct p2p_data
*p2p
,
4737 const u8
*go_dev_addr
,
4738 const u8
*ssid
, size_t ssid_len
)
4740 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
4745 int p2p_process_nfc_connection_handover(struct p2p_data
*p2p
,
4746 struct p2p_nfc_params
*params
)
4748 struct p2p_message msg
;
4749 struct p2p_device
*dev
;
4750 const u8
*p2p_dev_addr
;
4752 enum p2p_role_indication role
;
4754 params
->next_step
= NO_ACTION
;
4756 if (p2p_parse_ies_separate(params
->wsc_attr
, params
->wsc_len
,
4757 params
->p2p_attr
, params
->p2p_len
, &msg
)) {
4758 p2p_dbg(p2p
, "Failed to parse WSC/P2P attributes from NFC");
4759 p2p_parse_free(&msg
);
4763 if (msg
.p2p_device_addr
)
4764 p2p_dev_addr
= msg
.p2p_device_addr
;
4765 else if (msg
.device_id
)
4766 p2p_dev_addr
= msg
.device_id
;
4768 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
4769 p2p_parse_free(&msg
);
4773 if (msg
.oob_dev_password
) {
4774 os_memcpy(params
->oob_dev_pw
, msg
.oob_dev_password
,
4775 msg
.oob_dev_password_len
);
4776 params
->oob_dev_pw_len
= msg
.oob_dev_password_len
;
4779 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
4781 p2p_parse_free(&msg
);
4785 params
->peer
= &dev
->info
;
4787 os_get_reltime(&dev
->last_seen
);
4788 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
4789 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
4791 if (!msg
.oob_go_neg_channel
) {
4792 p2p_dbg(p2p
, "OOB GO Negotiation Channel attribute not included");
4796 if (msg
.oob_go_neg_channel
[3] == 0 &&
4797 msg
.oob_go_neg_channel
[4] == 0)
4800 freq
= p2p_channel_to_freq(msg
.oob_go_neg_channel
[3],
4801 msg
.oob_go_neg_channel
[4]);
4803 p2p_dbg(p2p
, "Unknown peer OOB GO Neg channel");
4806 role
= msg
.oob_go_neg_channel
[5];
4808 if (role
== P2P_GO_IN_A_GROUP
) {
4809 p2p_dbg(p2p
, "Peer OOB GO operating channel: %u MHz", freq
);
4810 params
->go_freq
= freq
;
4811 } else if (role
== P2P_CLIENT_IN_A_GROUP
) {
4812 p2p_dbg(p2p
, "Peer (client) OOB GO operating channel: %u MHz",
4814 params
->go_freq
= freq
;
4816 p2p_dbg(p2p
, "Peer OOB GO Neg channel: %u MHz", freq
);
4817 dev
->oob_go_neg_freq
= freq
;
4819 if (!params
->sel
&& role
!= P2P_GO_IN_A_GROUP
) {
4820 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
,
4823 p2p_dbg(p2p
, "Own listen channel not known");
4826 p2p_dbg(p2p
, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq
);
4827 dev
->oob_go_neg_freq
= freq
;
4831 os_memcpy(params
->go_dev_addr
, msg
.group_id
, ETH_ALEN
);
4832 params
->go_ssid_len
= msg
.group_id_len
- ETH_ALEN
;
4833 os_memcpy(params
->go_ssid
, msg
.group_id
+ ETH_ALEN
,
4834 params
->go_ssid_len
);
4837 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
4838 p2p_dbg(p2p
, "Do not report rejected device");
4839 p2p_parse_free(&msg
);
4843 if (!(dev
->flags
& P2P_DEV_REPORTED
)) {
4844 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, p2p_dev_addr
, &dev
->info
,
4845 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
4846 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
4848 p2p_parse_free(&msg
);
4850 if (role
== P2P_GO_IN_A_GROUP
&& p2p
->num_groups
> 0)
4851 params
->next_step
= BOTH_GO
;
4852 else if (role
== P2P_GO_IN_A_GROUP
)
4853 params
->next_step
= JOIN_GROUP
;
4854 else if (role
== P2P_CLIENT_IN_A_GROUP
) {
4855 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
4856 params
->next_step
= PEER_CLIENT
;
4857 } else if (p2p
->num_groups
> 0)
4858 params
->next_step
= AUTH_JOIN
;
4859 else if (params
->sel
)
4860 params
->next_step
= INIT_GO_NEG
;
4862 params
->next_step
= RESP_GO_NEG
;
4868 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data
*p2p
, u16 dev_pw_id
,
4870 const u8
*own_interface_addr
)
4873 p2p
->authorized_oob_dev_pw_id
= dev_pw_id
;
4874 if (dev_pw_id
== 0) {
4875 p2p_dbg(p2p
, "NFC OOB Password unauthorized for static handover");
4879 p2p_dbg(p2p
, "NFC OOB Password (id=%u) authorized for static handover",
4882 p2p
->go_intent
= go_intent
;
4883 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
4886 #endif /* CONFIG_WPS_NFC */
4889 int p2p_set_passphrase_len(struct p2p_data
*p2p
, unsigned int len
)
4891 if (len
< 8 || len
> 63)
4893 p2p
->cfg
->passphrase_len
= len
;
4898 void p2p_set_vendor_elems(struct p2p_data
*p2p
, struct wpabuf
**vendor_elem
)
4900 p2p
->vendor_elem
= vendor_elem
;
4904 void p2p_go_neg_wait_timeout(void *eloop_ctx
, void *timeout_ctx
)
4906 struct p2p_data
*p2p
= eloop_ctx
;
4909 "Timeout on waiting peer to become ready for GO Negotiation");
4910 p2p_go_neg_failed(p2p
, -1);