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/defs.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/ieee802_11_common.h"
16 #include "common/wpa_ctrl.h"
17 #include "crypto/sha256.h"
18 #include "crypto/crypto.h"
19 #include "wps/wps_i.h"
24 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
);
25 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
);
26 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
27 const u8
*sa
, const u8
*data
, size_t len
,
29 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
30 const u8
*sa
, const u8
*data
,
32 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
33 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
37 * p2p_scan recovery timeout
39 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
40 * timeout for this to avoid hitting P2P timeout unnecessarily.
42 #define P2P_SCAN_TIMEOUT 35
45 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
46 * entries will be removed
48 #ifndef P2P_PEER_EXPIRATION_AGE
49 #define P2P_PEER_EXPIRATION_AGE 60
50 #endif /* P2P_PEER_EXPIRATION_AGE */
53 void p2p_expire_peers(struct p2p_data
*p2p
)
55 struct p2p_device
*dev
, *n
;
56 struct os_reltime now
;
60 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
61 if (dev
->last_seen
.sec
+ P2P_PEER_EXPIRATION_AGE
>= now
.sec
)
64 if (dev
== p2p
->go_neg_peer
) {
66 * GO Negotiation is in progress with the peer, so
67 * don't expire the peer entry until GO Negotiation
73 if (p2p
->cfg
->go_connected
&&
74 p2p
->cfg
->go_connected(p2p
->cfg
->cb_ctx
,
75 dev
->info
.p2p_device_addr
)) {
77 * We are connected as a client to a group in which the
78 * peer is the GO, so do not expire the peer entry.
80 os_get_reltime(&dev
->last_seen
);
84 for (i
= 0; i
< p2p
->num_groups
; i
++) {
85 if (p2p_group_is_client_connected(
86 p2p
->groups
[i
], dev
->info
.p2p_device_addr
))
89 if (i
< p2p
->num_groups
) {
91 * The peer is connected as a client in a group where
92 * we are the GO, so do not expire the peer entry.
94 os_get_reltime(&dev
->last_seen
);
98 p2p_dbg(p2p
, "Expiring old peer entry " MACSTR
,
99 MAC2STR(dev
->info
.p2p_device_addr
));
100 dl_list_del(&dev
->list
);
101 p2p_device_free(p2p
, dev
);
106 static const char * p2p_state_txt(int state
)
115 case P2P_CONNECT_LISTEN
:
116 return "CONNECT_LISTEN";
119 case P2P_LISTEN_ONLY
:
120 return "LISTEN_ONLY";
121 case P2P_WAIT_PEER_CONNECT
:
122 return "WAIT_PEER_CONNECT";
123 case P2P_WAIT_PEER_IDLE
:
124 return "WAIT_PEER_IDLE";
125 case P2P_SD_DURING_FIND
:
126 return "SD_DURING_FIND";
127 case P2P_PROVISIONING
:
128 return "PROVISIONING";
129 case P2P_PD_DURING_FIND
:
130 return "PD_DURING_FIND";
133 case P2P_INVITE_LISTEN
:
134 return "INVITE_LISTEN";
141 const char * p2p_get_state_txt(struct p2p_data
*p2p
)
143 return p2p_state_txt(p2p
->state
);
147 struct p2ps_advertisement
* p2p_get_p2ps_adv_list(struct p2p_data
*p2p
)
149 return p2p
? p2p
->p2ps_adv_list
: NULL
;
153 void p2p_set_intended_addr(struct p2p_data
*p2p
, const u8
*intended_addr
)
155 if (p2p
&& intended_addr
)
156 os_memcpy(p2p
->intended_addr
, intended_addr
, ETH_ALEN
);
160 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
162 struct p2p_device
*dev
= NULL
;
167 dev
= p2p_get_device(p2p
, addr
);
169 return dev
->wps_prov_info
;
175 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
177 struct p2p_device
*dev
= NULL
;
182 dev
= p2p_get_device(p2p
, addr
);
184 dev
->wps_prov_info
= 0;
188 void p2p_set_state(struct p2p_data
*p2p
, int new_state
)
190 p2p_dbg(p2p
, "State %s -> %s",
191 p2p_state_txt(p2p
->state
), p2p_state_txt(new_state
));
192 p2p
->state
= new_state
;
194 if (new_state
== P2P_IDLE
&& p2p
->pending_channel
) {
195 p2p_dbg(p2p
, "Apply change in listen channel");
196 p2p
->cfg
->reg_class
= p2p
->pending_reg_class
;
197 p2p
->cfg
->channel
= p2p
->pending_channel
;
198 p2p
->pending_reg_class
= 0;
199 p2p
->pending_channel
= 0;
204 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
, unsigned int usec
)
206 p2p_dbg(p2p
, "Set timeout (state=%s): %u.%06u sec",
207 p2p_state_txt(p2p
->state
), sec
, usec
);
208 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
209 eloop_register_timeout(sec
, usec
, p2p_state_timeout
, p2p
, NULL
);
213 void p2p_clear_timeout(struct p2p_data
*p2p
)
215 p2p_dbg(p2p
, "Clear timeout (state=%s)", p2p_state_txt(p2p
->state
));
216 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
220 void p2p_go_neg_failed(struct p2p_data
*p2p
, int status
)
222 struct p2p_go_neg_results res
;
223 struct p2p_device
*peer
= p2p
->go_neg_peer
;
228 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
229 if (p2p
->state
!= P2P_SEARCH
) {
231 * Clear timeouts related to GO Negotiation if no new p2p_find
234 p2p_clear_timeout(p2p
);
235 p2p_set_state(p2p
, P2P_IDLE
);
238 peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
239 peer
->wps_method
= WPS_NOT_READY
;
241 wpabuf_free(peer
->go_neg_conf
);
242 peer
->go_neg_conf
= NULL
;
243 p2p
->go_neg_peer
= NULL
;
245 os_memset(&res
, 0, sizeof(res
));
247 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
248 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
249 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
253 static void p2p_listen_in_find(struct p2p_data
*p2p
, int dev_disc
)
259 p2p_dbg(p2p
, "Starting short listen state (state=%s)",
260 p2p_state_txt(p2p
->state
));
262 if (p2p
->pending_listen_freq
) {
263 /* We have a pending p2p_listen request */
264 p2p_dbg(p2p
, "p2p_listen command pending already");
268 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
270 p2p_dbg(p2p
, "Unknown regulatory class/channel");
274 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
276 tu
= (r
% ((p2p
->max_disc_int
- p2p
->min_disc_int
) + 1) +
277 p2p
->min_disc_int
) * 100;
278 if (p2p
->max_disc_tu
>= 0 && tu
> (unsigned int) p2p
->max_disc_tu
)
279 tu
= p2p
->max_disc_tu
;
280 if (!dev_disc
&& tu
< 100)
281 tu
= 100; /* Need to wait in non-device discovery use cases */
282 if (p2p
->cfg
->max_listen
&& 1024 * tu
/ 1000 > p2p
->cfg
->max_listen
)
283 tu
= p2p
->cfg
->max_listen
* 1000 / 1024;
286 p2p_dbg(p2p
, "Skip listen state since duration was 0 TU");
287 p2p_set_timeout(p2p
, 0, 0);
291 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
295 p2p
->pending_listen_freq
= freq
;
296 p2p
->pending_listen_sec
= 0;
297 p2p
->pending_listen_usec
= 1024 * tu
;
299 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, 1024 * tu
/ 1000,
301 p2p_dbg(p2p
, "Failed to start listen mode");
302 p2p
->pending_listen_freq
= 0;
308 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
)
313 p2p_dbg(p2p
, "Going to listen(only) state");
315 if (p2p
->pending_listen_freq
) {
316 /* We have a pending p2p_listen request */
317 p2p_dbg(p2p
, "p2p_listen command pending already");
321 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
323 p2p_dbg(p2p
, "Unknown regulatory class/channel");
327 p2p
->pending_listen_sec
= timeout
/ 1000;
328 p2p
->pending_listen_usec
= (timeout
% 1000) * 1000;
330 if (p2p
->p2p_scan_running
) {
331 if (p2p
->start_after_scan
== P2P_AFTER_SCAN_CONNECT
) {
332 p2p_dbg(p2p
, "p2p_scan running - connect is already pending - skip listen");
335 p2p_dbg(p2p
, "p2p_scan running - delay start of listen state");
336 p2p
->start_after_scan
= P2P_AFTER_SCAN_LISTEN
;
340 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
344 p2p
->pending_listen_freq
= freq
;
346 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, timeout
, ies
) < 0) {
347 p2p_dbg(p2p
, "Failed to start listen mode");
348 p2p
->pending_listen_freq
= 0;
354 p2p_set_state(p2p
, P2P_LISTEN_ONLY
);
360 static void p2p_device_clear_reported(struct p2p_data
*p2p
)
362 struct p2p_device
*dev
;
363 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
364 dev
->flags
&= ~P2P_DEV_REPORTED
;
371 * p2p_get_device - Fetch a peer entry
372 * @p2p: P2P module context from p2p_init()
373 * @addr: P2P Device Address of the peer
374 * Returns: Pointer to the device entry or %NULL if not found
376 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
)
378 struct p2p_device
*dev
;
379 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
380 if (os_memcmp(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
) == 0)
388 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
389 * @p2p: P2P module context from p2p_init()
390 * @addr: P2P Interface Address of the peer
391 * Returns: Pointer to the device entry or %NULL if not found
393 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
396 struct p2p_device
*dev
;
397 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
398 if (os_memcmp(dev
->interface_addr
, addr
, ETH_ALEN
) == 0)
406 * p2p_create_device - Create a peer entry
407 * @p2p: P2P module context from p2p_init()
408 * @addr: P2P Device Address of the peer
409 * Returns: Pointer to the device entry or %NULL on failure
411 * If there is already an entry for the peer, it will be returned instead of
412 * creating a new one.
414 static struct p2p_device
* p2p_create_device(struct p2p_data
*p2p
,
417 struct p2p_device
*dev
, *oldest
= NULL
;
420 dev
= p2p_get_device(p2p
, addr
);
424 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
426 if (oldest
== NULL
||
427 os_reltime_before(&dev
->last_seen
, &oldest
->last_seen
))
430 if (count
+ 1 > p2p
->cfg
->max_peers
&& oldest
) {
431 p2p_dbg(p2p
, "Remove oldest peer entry to make room for a new peer");
432 dl_list_del(&oldest
->list
);
433 p2p_device_free(p2p
, oldest
);
436 dev
= os_zalloc(sizeof(*dev
));
439 dl_list_add(&p2p
->devices
, &dev
->list
);
440 os_memcpy(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
);
446 static void p2p_copy_client_info(struct p2p_device
*dev
,
447 struct p2p_client_info
*cli
)
449 p2p_copy_filter_devname(dev
->info
.device_name
,
450 sizeof(dev
->info
.device_name
),
451 cli
->dev_name
, cli
->dev_name_len
);
452 dev
->info
.dev_capab
= cli
->dev_capab
;
453 dev
->info
.config_methods
= cli
->config_methods
;
454 os_memcpy(dev
->info
.pri_dev_type
, cli
->pri_dev_type
, 8);
455 dev
->info
.wps_sec_dev_type_list_len
= 8 * cli
->num_sec_dev_types
;
456 os_memcpy(dev
->info
.wps_sec_dev_type_list
, cli
->sec_dev_types
,
457 dev
->info
.wps_sec_dev_type_list_len
);
461 static int p2p_add_group_clients(struct p2p_data
*p2p
, const u8
*go_dev_addr
,
462 const u8
*go_interface_addr
, int freq
,
463 const u8
*gi
, size_t gi_len
,
464 struct os_reltime
*rx_time
)
466 struct p2p_group_info info
;
468 struct p2p_device
*dev
;
473 if (p2p_group_info_parse(gi
, gi_len
, &info
) < 0)
477 * Clear old data for this group; if the devices are still in the
478 * group, the information will be restored in the loop following this.
480 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
481 if (os_memcmp(dev
->member_in_go_iface
, go_interface_addr
,
483 os_memset(dev
->member_in_go_iface
, 0, ETH_ALEN
);
484 os_memset(dev
->member_in_go_dev
, 0, ETH_ALEN
);
488 for (c
= 0; c
< info
.num_clients
; c
++) {
489 struct p2p_client_info
*cli
= &info
.client
[c
];
490 if (os_memcmp(cli
->p2p_device_addr
, p2p
->cfg
->dev_addr
,
492 continue; /* ignore our own entry */
493 dev
= p2p_get_device(p2p
, cli
->p2p_device_addr
);
495 if (dev
->flags
& (P2P_DEV_GROUP_CLIENT_ONLY
|
496 P2P_DEV_PROBE_REQ_ONLY
)) {
498 * Update information since we have not
499 * received this directly from the client.
501 p2p_copy_client_info(dev
, cli
);
504 * Need to update P2P Client Discoverability
505 * flag since it is valid only in P2P Group
508 dev
->info
.dev_capab
&=
509 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
510 dev
->info
.dev_capab
|=
512 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
514 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
515 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
518 dev
= p2p_create_device(p2p
, cli
->p2p_device_addr
);
521 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
522 p2p_copy_client_info(dev
, cli
);
523 dev
->oper_freq
= freq
;
524 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
,
525 dev
->info
.p2p_device_addr
,
527 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
530 os_memcpy(dev
->interface_addr
, cli
->p2p_interface_addr
,
532 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
533 os_memcpy(dev
->member_in_go_dev
, go_dev_addr
, ETH_ALEN
);
534 os_memcpy(dev
->member_in_go_iface
, go_interface_addr
,
536 dev
->flags
|= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
;
543 static void p2p_copy_wps_info(struct p2p_data
*p2p
, struct p2p_device
*dev
,
544 int probe_req
, const struct p2p_message
*msg
)
546 os_memcpy(dev
->info
.device_name
, msg
->device_name
,
547 sizeof(dev
->info
.device_name
));
549 if (msg
->manufacturer
&&
550 msg
->manufacturer_len
< sizeof(dev
->info
.manufacturer
)) {
551 os_memset(dev
->info
.manufacturer
, 0,
552 sizeof(dev
->info
.manufacturer
));
553 os_memcpy(dev
->info
.manufacturer
, msg
->manufacturer
,
554 msg
->manufacturer_len
);
557 if (msg
->model_name
&&
558 msg
->model_name_len
< sizeof(dev
->info
.model_name
)) {
559 os_memset(dev
->info
.model_name
, 0,
560 sizeof(dev
->info
.model_name
));
561 os_memcpy(dev
->info
.model_name
, msg
->model_name
,
562 msg
->model_name_len
);
565 if (msg
->model_number
&&
566 msg
->model_number_len
< sizeof(dev
->info
.model_number
)) {
567 os_memset(dev
->info
.model_number
, 0,
568 sizeof(dev
->info
.model_number
));
569 os_memcpy(dev
->info
.model_number
, msg
->model_number
,
570 msg
->model_number_len
);
573 if (msg
->serial_number
&&
574 msg
->serial_number_len
< sizeof(dev
->info
.serial_number
)) {
575 os_memset(dev
->info
.serial_number
, 0,
576 sizeof(dev
->info
.serial_number
));
577 os_memcpy(dev
->info
.serial_number
, msg
->serial_number
,
578 msg
->serial_number_len
);
581 if (msg
->pri_dev_type
)
582 os_memcpy(dev
->info
.pri_dev_type
, msg
->pri_dev_type
,
583 sizeof(dev
->info
.pri_dev_type
));
584 else if (msg
->wps_pri_dev_type
)
585 os_memcpy(dev
->info
.pri_dev_type
, msg
->wps_pri_dev_type
,
586 sizeof(dev
->info
.pri_dev_type
));
588 if (msg
->wps_sec_dev_type_list
) {
589 os_memcpy(dev
->info
.wps_sec_dev_type_list
,
590 msg
->wps_sec_dev_type_list
,
591 msg
->wps_sec_dev_type_list_len
);
592 dev
->info
.wps_sec_dev_type_list_len
=
593 msg
->wps_sec_dev_type_list_len
;
596 if (msg
->capability
) {
598 * P2P Client Discoverability bit is reserved in all frames
599 * that use this function, so do not change its value here.
601 dev
->info
.dev_capab
&= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
602 dev
->info
.dev_capab
|= msg
->capability
[0] &
603 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
604 dev
->info
.group_capab
= msg
->capability
[1];
607 if (msg
->ext_listen_timing
) {
608 dev
->ext_listen_period
= WPA_GET_LE16(msg
->ext_listen_timing
);
609 dev
->ext_listen_interval
=
610 WPA_GET_LE16(msg
->ext_listen_timing
+ 2);
614 u16 new_config_methods
;
615 new_config_methods
= msg
->config_methods
?
616 msg
->config_methods
: msg
->wps_config_methods
;
617 if (new_config_methods
&&
618 dev
->info
.config_methods
!= new_config_methods
) {
619 p2p_dbg(p2p
, "Update peer " MACSTR
620 " config_methods 0x%x -> 0x%x",
621 MAC2STR(dev
->info
.p2p_device_addr
),
622 dev
->info
.config_methods
,
624 dev
->info
.config_methods
= new_config_methods
;
630 static void p2p_update_peer_vendor_elems(struct p2p_device
*dev
, const u8
*ies
,
636 wpabuf_free(dev
->info
.vendor_elems
);
637 dev
->info
.vendor_elems
= NULL
;
641 for (pos
= ies
; end
- pos
> 1; pos
+= len
) {
648 if (id
!= WLAN_EID_VENDOR_SPECIFIC
|| len
< 3)
652 u32 type
= WPA_GET_BE32(pos
);
654 if (type
== WPA_IE_VENDOR_TYPE
||
655 type
== WMM_IE_VENDOR_TYPE
||
656 type
== WPS_IE_VENDOR_TYPE
||
657 type
== P2P_IE_VENDOR_TYPE
||
658 type
== WFD_IE_VENDOR_TYPE
)
662 /* Unknown vendor element - make raw IE data available */
663 if (wpabuf_resize(&dev
->info
.vendor_elems
, 2 + len
) < 0)
665 wpabuf_put_data(dev
->info
.vendor_elems
, pos
- 2, 2 + len
);
670 static int p2p_compare_wfd_info(struct p2p_device
*dev
,
671 const struct p2p_message
*msg
)
673 if (dev
->info
.wfd_subelems
&& msg
->wfd_subelems
) {
674 if (dev
->info
.wfd_subelems
->used
!= msg
->wfd_subelems
->used
)
677 return os_memcmp(dev
->info
.wfd_subelems
->buf
,
678 msg
->wfd_subelems
->buf
,
679 dev
->info
.wfd_subelems
->used
);
681 if (dev
->info
.wfd_subelems
|| msg
->wfd_subelems
)
689 * p2p_add_device - Add peer entries based on scan results or P2P frames
690 * @p2p: P2P module context from p2p_init()
691 * @addr: Source address of Beacon or Probe Response frame (may be either
692 * P2P Device Address or P2P Interface Address)
693 * @level: Signal level (signal strength of the received frame from the peer)
694 * @freq: Frequency on which the Beacon or Probe Response frame was received
695 * @rx_time: Time when the result was received
696 * @ies: IEs from the Beacon or Probe Response frame
697 * @ies_len: Length of ies buffer in octets
698 * @scan_res: Whether this was based on scan results
699 * Returns: 0 on success, -1 on failure
701 * If the scan result is for a GO, the clients in the group will also be added
702 * to the peer table. This function can also be used with some other frames
703 * like Provision Discovery Request that contains P2P Capability and P2P Device
706 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
,
707 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
708 size_t ies_len
, int scan_res
)
710 struct p2p_device
*dev
;
711 struct p2p_message msg
;
712 const u8
*p2p_dev_addr
;
714 int dev_name_changed
;
716 struct os_reltime time_now
;
718 os_memset(&msg
, 0, sizeof(msg
));
719 if (p2p_parse_ies(ies
, ies_len
, &msg
)) {
720 p2p_dbg(p2p
, "Failed to parse P2P IE for a device entry");
721 p2p_parse_free(&msg
);
725 if (msg
.p2p_device_addr
)
726 p2p_dev_addr
= msg
.p2p_device_addr
;
727 else if (msg
.device_id
)
728 p2p_dev_addr
= msg
.device_id
;
730 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
731 p2p_parse_free(&msg
);
735 if (!is_zero_ether_addr(p2p
->peer_filter
) &&
736 os_memcmp(p2p_dev_addr
, p2p
->peer_filter
, ETH_ALEN
) != 0) {
737 p2p_dbg(p2p
, "Do not add peer filter for " MACSTR
738 " due to peer filter", MAC2STR(p2p_dev_addr
));
739 p2p_parse_free(&msg
);
743 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
745 p2p_parse_free(&msg
);
749 if (rx_time
== NULL
) {
750 os_get_reltime(&time_now
);
755 * Update the device entry only if the new peer
756 * entry is newer than the one previously stored, or if
757 * the device was previously seen as a P2P Client in a group
758 * and the new entry isn't older than a threshold.
760 if (dev
->last_seen
.sec
> 0 &&
761 os_reltime_before(rx_time
, &dev
->last_seen
) &&
762 (!(dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
) ||
763 os_reltime_expired(&dev
->last_seen
, rx_time
,
764 P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD
))) {
766 "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
767 (unsigned int) rx_time
->sec
,
768 (unsigned int) rx_time
->usec
,
769 (unsigned int) dev
->last_seen
.sec
,
770 (unsigned int) dev
->last_seen
.usec
,
772 p2p_parse_free(&msg
);
776 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
778 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
|
779 P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
);
781 if (os_memcmp(addr
, p2p_dev_addr
, ETH_ALEN
) != 0)
782 os_memcpy(dev
->interface_addr
, addr
, ETH_ALEN
);
784 msg
.ssid
[1] <= sizeof(dev
->oper_ssid
) &&
785 (msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
786 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
788 os_memcpy(dev
->oper_ssid
, msg
.ssid
+ 2, msg
.ssid
[1]);
789 dev
->oper_ssid_len
= msg
.ssid
[1];
792 wpabuf_free(dev
->info
.p2ps_instance
);
793 dev
->info
.p2ps_instance
= NULL
;
794 if (msg
.adv_service_instance
&& msg
.adv_service_instance_len
)
795 dev
->info
.p2ps_instance
= wpabuf_alloc_copy(
796 msg
.adv_service_instance
, msg
.adv_service_instance_len
);
798 if (freq
>= 2412 && freq
<= 2484 && msg
.ds_params
&&
799 *msg
.ds_params
>= 1 && *msg
.ds_params
<= 14) {
801 if (*msg
.ds_params
== 14)
804 ds_freq
= 2407 + *msg
.ds_params
* 5;
805 if (freq
!= ds_freq
) {
806 p2p_dbg(p2p
, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
812 if (dev
->listen_freq
&& dev
->listen_freq
!= freq
&& scan_res
) {
813 p2p_dbg(p2p
, "Update Listen frequency based on scan results ("
814 MACSTR
" %d -> %d MHz (DS param %d)",
815 MAC2STR(dev
->info
.p2p_device_addr
), dev
->listen_freq
,
816 freq
, msg
.ds_params
? *msg
.ds_params
: -1);
819 dev
->listen_freq
= freq
;
821 dev
->oper_freq
= freq
;
823 dev
->info
.level
= level
;
825 dev_name_changed
= os_strncmp(dev
->info
.device_name
, msg
.device_name
,
826 WPS_DEV_NAME_MAX_LEN
) != 0;
828 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
830 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
831 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
832 dev
->info
.wps_vendor_ext
[i
] = NULL
;
835 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
836 if (msg
.wps_vendor_ext
[i
] == NULL
)
838 dev
->info
.wps_vendor_ext
[i
] = wpabuf_alloc_copy(
839 msg
.wps_vendor_ext
[i
], msg
.wps_vendor_ext_len
[i
]);
840 if (dev
->info
.wps_vendor_ext
[i
] == NULL
)
844 wfd_changed
= p2p_compare_wfd_info(dev
, &msg
);
847 wpabuf_free(dev
->info
.wfd_subelems
);
848 if (msg
.wfd_subelems
)
849 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
851 dev
->info
.wfd_subelems
= NULL
;
855 p2p_add_group_clients(p2p
, p2p_dev_addr
, addr
, freq
,
856 msg
.group_info
, msg
.group_info_len
,
860 p2p_parse_free(&msg
);
862 p2p_update_peer_vendor_elems(dev
, ies
, ies_len
);
864 if (dev
->flags
& P2P_DEV_REPORTED
&& !wfd_changed
&&
866 (!msg
.adv_service_instance
||
867 (dev
->flags
& P2P_DEV_P2PS_REPORTED
)))
870 p2p_dbg(p2p
, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
871 freq
, (unsigned int) rx_time
->sec
,
872 (unsigned int) rx_time
->usec
);
873 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
874 p2p_dbg(p2p
, "Do not report rejected device");
878 if (dev
->info
.config_methods
== 0 &&
879 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
881 * If we have only seen a Beacon frame from a GO, we do not yet
882 * know what WPS config methods it supports. Since some
883 * applications use config_methods value from P2P-DEVICE-FOUND
884 * events, postpone reporting this peer until we've fully
885 * discovered its capabilities.
887 * At least for now, do this only if the peer was detected on
888 * one of the social channels since that peer can be easily be
889 * found again and there are no limitations of having to use
890 * passive scan on this channels, so this can be done through
891 * Probe Response frame that includes the config_methods
894 p2p_dbg(p2p
, "Do not report peer " MACSTR
895 " with unknown config methods", MAC2STR(addr
));
899 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
900 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
901 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
903 if (msg
.adv_service_instance
)
904 dev
->flags
|= P2P_DEV_P2PS_REPORTED
;
910 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
)
914 if (p2p
->go_neg_peer
== dev
) {
916 * If GO Negotiation is in progress, report that it has failed.
918 p2p_go_neg_failed(p2p
, -1);
920 if (p2p
->invite_peer
== dev
)
921 p2p
->invite_peer
= NULL
;
922 if (p2p
->sd_peer
== dev
)
924 if (p2p
->pending_client_disc_go
== dev
)
925 p2p
->pending_client_disc_go
= NULL
;
927 /* dev_lost() device, but only if it was previously dev_found() */
928 if (dev
->flags
& P2P_DEV_REPORTED_ONCE
)
929 p2p
->cfg
->dev_lost(p2p
->cfg
->cb_ctx
,
930 dev
->info
.p2p_device_addr
);
932 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
933 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
934 dev
->info
.wps_vendor_ext
[i
] = NULL
;
937 wpabuf_free(dev
->info
.wfd_subelems
);
938 wpabuf_free(dev
->info
.vendor_elems
);
939 wpabuf_free(dev
->go_neg_conf
);
940 wpabuf_free(dev
->info
.p2ps_instance
);
946 static int p2p_get_next_prog_freq(struct p2p_data
*p2p
)
948 struct p2p_channels
*c
;
949 struct p2p_reg_class
*cla
;
956 c
= &p2p
->cfg
->channels
;
957 for (cl
= 0; cl
< c
->reg_classes
; cl
++) {
958 cla
= &c
->reg_class
[cl
];
959 if (cla
->reg_class
!= p2p
->last_prog_scan_class
)
961 for (ch
= 0; ch
< cla
->channels
; ch
++) {
962 if (cla
->channel
[ch
] == p2p
->last_prog_scan_chan
) {
972 /* Start from beginning */
973 reg_class
= c
->reg_class
[0].reg_class
;
974 channel
= c
->reg_class
[0].channel
[0];
976 /* Pick the next channel */
978 if (ch
== cla
->channels
) {
980 if (cl
== c
->reg_classes
)
984 reg_class
= c
->reg_class
[cl
].reg_class
;
985 channel
= c
->reg_class
[cl
].channel
[ch
];
988 freq
= p2p_channel_to_freq(reg_class
, channel
);
989 p2p_dbg(p2p
, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
990 reg_class
, channel
, freq
);
991 p2p
->last_prog_scan_class
= reg_class
;
992 p2p
->last_prog_scan_chan
= channel
;
994 if (freq
== 2412 || freq
== 2437 || freq
== 2462)
995 return 0; /* No need to add social channels */
1000 static void p2p_search(struct p2p_data
*p2p
)
1003 enum p2p_scan_type type
;
1004 u16 pw_id
= DEV_PW_DEFAULT
;
1007 if (p2p
->drv_in_listen
) {
1008 p2p_dbg(p2p
, "Driver is still in Listen state - wait for it to end before continuing");
1011 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1013 if (p2p
->find_type
== P2P_FIND_PROGRESSIVE
&&
1014 (freq
= p2p_get_next_prog_freq(p2p
)) > 0) {
1015 type
= P2P_SCAN_SOCIAL_PLUS_ONE
;
1016 p2p_dbg(p2p
, "Starting search (+ freq %u)", freq
);
1018 type
= P2P_SCAN_SOCIAL
;
1019 p2p_dbg(p2p
, "Starting search");
1022 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, type
, freq
,
1023 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
1024 p2p
->find_dev_id
, pw_id
);
1026 p2p_dbg(p2p
, "Scan request schedule failed");
1027 p2p_continue_find(p2p
);
1032 static void p2p_find_timeout(void *eloop_ctx
, void *timeout_ctx
)
1034 struct p2p_data
*p2p
= eloop_ctx
;
1035 p2p_dbg(p2p
, "Find timeout -> stop");
1040 void p2p_notify_scan_trigger_status(struct p2p_data
*p2p
, int status
)
1043 p2p_dbg(p2p
, "Scan request failed");
1044 /* Do continue find even for the first p2p_find_scan */
1045 p2p_continue_find(p2p
);
1047 p2p_dbg(p2p
, "Running p2p_scan");
1048 p2p
->p2p_scan_running
= 1;
1049 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
1050 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
1056 static int p2p_run_after_scan(struct p2p_data
*p2p
)
1058 struct p2p_device
*dev
;
1059 enum p2p_after_scan op
;
1061 if (p2p
->after_scan_tx
) {
1062 p2p
->after_scan_tx_in_progress
= 1;
1063 p2p_dbg(p2p
, "Send pending Action frame at p2p_scan completion");
1064 p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
,
1065 p2p
->after_scan_tx
->freq
,
1066 p2p
->after_scan_tx
->dst
,
1067 p2p
->after_scan_tx
->src
,
1068 p2p
->after_scan_tx
->bssid
,
1069 (u8
*) (p2p
->after_scan_tx
+ 1),
1070 p2p
->after_scan_tx
->len
,
1071 p2p
->after_scan_tx
->wait_time
);
1072 os_free(p2p
->after_scan_tx
);
1073 p2p
->after_scan_tx
= NULL
;
1077 op
= p2p
->start_after_scan
;
1078 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1080 case P2P_AFTER_SCAN_NOTHING
:
1082 case P2P_AFTER_SCAN_LISTEN
:
1083 p2p_dbg(p2p
, "Start previously requested Listen state");
1084 p2p_listen(p2p
, p2p
->pending_listen_sec
* 1000 +
1085 p2p
->pending_listen_usec
/ 1000);
1087 case P2P_AFTER_SCAN_CONNECT
:
1088 p2p_dbg(p2p
, "Start previously requested connect with " MACSTR
,
1089 MAC2STR(p2p
->after_scan_peer
));
1090 dev
= p2p_get_device(p2p
, p2p
->after_scan_peer
);
1092 p2p_dbg(p2p
, "Peer not known anymore");
1095 p2p_connect_send(p2p
, dev
);
1103 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
1105 struct p2p_data
*p2p
= eloop_ctx
;
1107 p2p_dbg(p2p
, "p2p_scan timeout (running=%d)", p2p
->p2p_scan_running
);
1108 running
= p2p
->p2p_scan_running
;
1109 /* Make sure we recover from missed scan results callback */
1110 p2p
->p2p_scan_running
= 0;
1113 p2p_run_after_scan(p2p
);
1117 static void p2p_free_req_dev_types(struct p2p_data
*p2p
)
1119 p2p
->num_req_dev_types
= 0;
1120 os_free(p2p
->req_dev_types
);
1121 p2p
->req_dev_types
= NULL
;
1125 static int p2ps_gen_hash(struct p2p_data
*p2p
, const char *str
, u8
*hash
)
1127 u8 buf
[SHA256_MAC_LEN
];
1129 const u8
*adv_array
;
1136 os_memcpy(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
);
1140 adv_array
= (u8
*) str_buf
;
1141 adv_len
= os_strlen(str
);
1142 if (adv_len
>= sizeof(str_buf
))
1145 for (i
= 0; i
< adv_len
; i
++) {
1146 if (str
[i
] >= 'A' && str
[i
] <= 'Z')
1147 str_buf
[i
] = str
[i
] - 'A' + 'a';
1149 str_buf
[i
] = str
[i
];
1152 if (sha256_vector(1, &adv_array
, &adv_len
, buf
))
1155 os_memcpy(hash
, buf
, P2PS_HASH_LEN
);
1160 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
1161 enum p2p_discovery_type type
,
1162 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
1163 const u8
*dev_id
, unsigned int search_delay
,
1164 u8 seek_count
, const char **seek
, int freq
)
1168 p2p_dbg(p2p
, "Starting find (type=%d)", type
);
1169 os_get_reltime(&p2p
->find_start
);
1170 if (p2p
->p2p_scan_running
) {
1171 p2p_dbg(p2p
, "p2p_scan is already running");
1174 p2p_free_req_dev_types(p2p
);
1175 if (req_dev_types
&& num_req_dev_types
) {
1176 p2p
->req_dev_types
= os_malloc(num_req_dev_types
*
1178 if (p2p
->req_dev_types
== NULL
)
1180 os_memcpy(p2p
->req_dev_types
, req_dev_types
,
1181 num_req_dev_types
* WPS_DEV_TYPE_LEN
);
1182 p2p
->num_req_dev_types
= num_req_dev_types
;
1186 os_memcpy(p2p
->find_dev_id_buf
, dev_id
, ETH_ALEN
);
1187 p2p
->find_dev_id
= p2p
->find_dev_id_buf
;
1189 p2p
->find_dev_id
= NULL
;
1191 if (seek_count
== 0 || !seek
) {
1192 /* Not an ASP search */
1194 } else if (seek_count
== 1 && seek
&& (!seek
[0] || !seek
[0][0])) {
1196 * An empty seek string means no hash values, but still an ASP
1199 p2p_dbg(p2p
, "ASP search");
1200 p2p
->p2ps_seek_count
= 0;
1202 } else if (seek
&& seek_count
<= P2P_MAX_QUERY_HASH
) {
1203 u8 buf
[P2PS_HASH_LEN
];
1206 for (i
= 0; i
< seek_count
; i
++) {
1207 if (!p2ps_gen_hash(p2p
, seek
[i
], buf
))
1210 p2p_dbg(p2p
, "Seek service %s hash " MACSTR
,
1211 seek
[i
], MAC2STR(buf
));
1212 os_memcpy(&p2p
->p2ps_seek_hash
[count
* P2PS_HASH_LEN
],
1213 buf
, P2PS_HASH_LEN
);
1217 p2p
->p2ps_seek_count
= count
;
1220 p2p
->p2ps_seek_count
= 0;
1224 /* Special case to perform wildcard search */
1225 if (p2p
->p2ps_seek_count
== 0 && p2p
->p2ps_seek
) {
1226 p2p
->p2ps_seek_count
= 1;
1227 os_memcpy(&p2p
->p2ps_seek_hash
, p2p
->wild_card_hash
,
1231 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1232 p2p_clear_timeout(p2p
);
1233 if (p2p
->pending_listen_freq
) {
1234 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_find");
1235 p2p
->pending_listen_freq
= 0;
1237 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1238 p2p
->find_type
= type
;
1239 p2p_device_clear_reported(p2p
);
1240 os_memset(p2p
->sd_query_no_ack
, 0, ETH_ALEN
);
1241 p2p_set_state(p2p
, P2P_SEARCH
);
1242 p2p
->search_delay
= search_delay
;
1243 p2p
->in_search_delay
= 0;
1244 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1245 p2p
->last_p2p_find_timeout
= timeout
;
1247 eloop_register_timeout(timeout
, 0, p2p_find_timeout
,
1250 case P2P_FIND_START_WITH_FULL
:
1253 * Start with the specified channel and then move to
1254 * social channels only scans.
1256 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
,
1257 P2P_SCAN_SPECIFIC
, freq
,
1258 p2p
->num_req_dev_types
,
1259 p2p
->req_dev_types
, dev_id
,
1264 case P2P_FIND_PROGRESSIVE
:
1265 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_FULL
, 0,
1266 p2p
->num_req_dev_types
,
1267 p2p
->req_dev_types
, dev_id
,
1270 case P2P_FIND_ONLY_SOCIAL
:
1271 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_SOCIAL
, 0,
1272 p2p
->num_req_dev_types
,
1273 p2p
->req_dev_types
, dev_id
,
1280 if (res
!= 0 && p2p
->p2p_scan_running
) {
1281 p2p_dbg(p2p
, "Failed to start p2p_scan - another p2p_scan was already running");
1282 /* wait for the previous p2p_scan to complete */
1283 res
= 0; /* do not report failure */
1284 } else if (res
!= 0) {
1285 p2p_dbg(p2p
, "Failed to start p2p_scan");
1286 p2p_set_state(p2p
, P2P_IDLE
);
1287 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1294 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
)
1296 p2p_dbg(p2p
, "Stopping find");
1297 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1298 p2p_clear_timeout(p2p
);
1299 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
1300 p2p
->cfg
->find_stopped(p2p
->cfg
->cb_ctx
);
1302 p2p
->p2ps_seek_count
= 0;
1304 p2p_set_state(p2p
, P2P_IDLE
);
1305 p2p_free_req_dev_types(p2p
);
1306 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1307 if (p2p
->go_neg_peer
)
1308 p2p
->go_neg_peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
1309 p2p
->go_neg_peer
= NULL
;
1310 p2p
->sd_peer
= NULL
;
1311 p2p
->invite_peer
= NULL
;
1312 p2p_stop_listen_for_freq(p2p
, freq
);
1313 p2p
->send_action_in_progress
= 0;
1317 void p2p_stop_listen_for_freq(struct p2p_data
*p2p
, int freq
)
1319 if (freq
> 0 && p2p
->drv_in_listen
== freq
&& p2p
->in_listen
) {
1320 p2p_dbg(p2p
, "Skip stop_listen since we are on correct channel for response");
1323 if (p2p
->in_listen
) {
1325 p2p_clear_timeout(p2p
);
1327 if (p2p
->drv_in_listen
) {
1329 * The driver may not deliver callback to p2p_listen_end()
1330 * when the operation gets canceled, so clear the internal
1331 * variable that is tracking driver state.
1333 p2p_dbg(p2p
, "Clear drv_in_listen (%d)", p2p
->drv_in_listen
);
1334 p2p
->drv_in_listen
= 0;
1336 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1340 void p2p_stop_listen(struct p2p_data
*p2p
)
1342 if (p2p
->state
!= P2P_LISTEN_ONLY
) {
1343 p2p_dbg(p2p
, "Skip stop_listen since not in listen_only state.");
1347 p2p_stop_listen_for_freq(p2p
, 0);
1348 p2p_set_state(p2p
, P2P_IDLE
);
1352 void p2p_stop_find(struct p2p_data
*p2p
)
1354 p2p
->pending_listen_freq
= 0;
1355 p2p_stop_find_for_freq(p2p
, 0);
1359 static int p2p_prepare_channel_pref(struct p2p_data
*p2p
,
1360 unsigned int force_freq
,
1361 unsigned int pref_freq
, int go
)
1363 u8 op_class
, op_channel
;
1364 unsigned int freq
= force_freq
? force_freq
: pref_freq
;
1366 p2p_dbg(p2p
, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1367 force_freq
, pref_freq
, go
);
1368 if (p2p_freq_to_channel(freq
, &op_class
, &op_channel
) < 0) {
1369 p2p_dbg(p2p
, "Unsupported frequency %u MHz", freq
);
1373 if (!p2p_channels_includes(&p2p
->cfg
->channels
, op_class
, op_channel
) &&
1374 (go
|| !p2p_channels_includes(&p2p
->cfg
->cli_channels
, op_class
,
1376 p2p_dbg(p2p
, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1377 freq
, op_class
, op_channel
);
1381 p2p
->op_reg_class
= op_class
;
1382 p2p
->op_channel
= op_channel
;
1385 p2p
->channels
.reg_classes
= 1;
1386 p2p
->channels
.reg_class
[0].channels
= 1;
1387 p2p
->channels
.reg_class
[0].reg_class
= p2p
->op_reg_class
;
1388 p2p
->channels
.reg_class
[0].channel
[0] = p2p
->op_channel
;
1390 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1391 sizeof(struct p2p_channels
));
1398 static void p2p_prepare_channel_best(struct p2p_data
*p2p
)
1400 u8 op_class
, op_channel
;
1401 const int op_classes_5ghz
[] = { 124, 125, 115, 0 };
1402 const int op_classes_ht40
[] = { 126, 127, 116, 117, 0 };
1403 const int op_classes_vht
[] = { 128, 0 };
1405 p2p_dbg(p2p
, "Prepare channel best");
1407 if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_overall
> 0 &&
1408 p2p_supported_freq(p2p
, p2p
->best_freq_overall
) &&
1409 p2p_freq_to_channel(p2p
->best_freq_overall
, &op_class
, &op_channel
)
1411 p2p_dbg(p2p
, "Select best overall channel as operating channel preference");
1412 p2p
->op_reg_class
= op_class
;
1413 p2p
->op_channel
= op_channel
;
1414 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_5
> 0 &&
1415 p2p_supported_freq(p2p
, p2p
->best_freq_5
) &&
1416 p2p_freq_to_channel(p2p
->best_freq_5
, &op_class
, &op_channel
)
1418 p2p_dbg(p2p
, "Select best 5 GHz channel as operating channel preference");
1419 p2p
->op_reg_class
= op_class
;
1420 p2p
->op_channel
= op_channel
;
1421 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_24
> 0 &&
1422 p2p_supported_freq(p2p
, p2p
->best_freq_24
) &&
1423 p2p_freq_to_channel(p2p
->best_freq_24
, &op_class
,
1424 &op_channel
) == 0) {
1425 p2p_dbg(p2p
, "Select best 2.4 GHz channel as operating channel preference");
1426 p2p
->op_reg_class
= op_class
;
1427 p2p
->op_channel
= op_channel
;
1428 } else if (p2p
->cfg
->num_pref_chan
> 0 &&
1429 p2p_channels_includes(&p2p
->cfg
->channels
,
1430 p2p
->cfg
->pref_chan
[0].op_class
,
1431 p2p
->cfg
->pref_chan
[0].chan
)) {
1432 p2p_dbg(p2p
, "Select first pref_chan entry as operating channel preference");
1433 p2p
->op_reg_class
= p2p
->cfg
->pref_chan
[0].op_class
;
1434 p2p
->op_channel
= p2p
->cfg
->pref_chan
[0].chan
;
1435 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_vht
,
1436 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1438 p2p_dbg(p2p
, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1439 p2p
->op_reg_class
, p2p
->op_channel
);
1440 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_ht40
,
1441 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1443 p2p_dbg(p2p
, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1444 p2p
->op_reg_class
, p2p
->op_channel
);
1445 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_5ghz
,
1446 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1448 p2p_dbg(p2p
, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1449 p2p
->op_reg_class
, p2p
->op_channel
);
1450 } else if (p2p_channels_includes(&p2p
->cfg
->channels
,
1451 p2p
->cfg
->op_reg_class
,
1452 p2p
->cfg
->op_channel
)) {
1453 p2p_dbg(p2p
, "Select pre-configured channel as operating channel preference");
1454 p2p
->op_reg_class
= p2p
->cfg
->op_reg_class
;
1455 p2p
->op_channel
= p2p
->cfg
->op_channel
;
1456 } else if (p2p_channel_random_social(&p2p
->cfg
->channels
,
1458 &p2p
->op_channel
) == 0) {
1459 p2p_dbg(p2p
, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1460 p2p
->op_reg_class
, p2p
->op_channel
);
1462 /* Select any random available channel from the first available
1463 * operating class */
1464 p2p_channel_select(&p2p
->cfg
->channels
, NULL
,
1467 p2p_dbg(p2p
, "Select random available channel %d from operating class %d as operating channel preference",
1468 p2p
->op_channel
, p2p
->op_reg_class
);
1471 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1472 sizeof(struct p2p_channels
));
1477 * p2p_prepare_channel - Select operating channel for GO Negotiation or P2PS PD
1478 * @p2p: P2P module context from p2p_init()
1479 * @dev: Selected peer device
1480 * @force_freq: Forced frequency in MHz or 0 if not forced
1481 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1482 * @go: Whether the local end will be forced to be GO
1483 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1485 * This function is used to do initial operating channel selection for GO
1486 * Negotiation prior to having received peer information or for P2PS PD
1487 * signalling. The selected channel may be further optimized in
1488 * p2p_reselect_channel() once the peer information is available.
1490 int p2p_prepare_channel(struct p2p_data
*p2p
, struct p2p_device
*dev
,
1491 unsigned int force_freq
, unsigned int pref_freq
, int go
)
1493 p2p_dbg(p2p
, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1494 force_freq
, pref_freq
, go
);
1495 if (force_freq
|| pref_freq
) {
1496 if (p2p_prepare_channel_pref(p2p
, force_freq
, pref_freq
, go
) <
1500 p2p_prepare_channel_best(p2p
);
1502 p2p_channels_dump(p2p
, "prepared channels", &p2p
->channels
);
1504 p2p_channels_remove_freqs(&p2p
->channels
, &p2p
->no_go_freq
);
1505 else if (!force_freq
)
1506 p2p_channels_union_inplace(&p2p
->channels
,
1507 &p2p
->cfg
->cli_channels
);
1508 p2p_channels_dump(p2p
, "after go/cli filter/add", &p2p
->channels
);
1510 p2p_dbg(p2p
, "Own preference for operation channel: Operating Class %u Channel %u%s",
1511 p2p
->op_reg_class
, p2p
->op_channel
,
1512 force_freq
? " (forced)" : "");
1515 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1517 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1523 static void p2p_set_dev_persistent(struct p2p_device
*dev
,
1524 int persistent_group
)
1526 switch (persistent_group
) {
1528 dev
->flags
&= ~(P2P_DEV_PREFER_PERSISTENT_GROUP
|
1529 P2P_DEV_PREFER_PERSISTENT_RECONN
);
1532 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
;
1533 dev
->flags
&= ~P2P_DEV_PREFER_PERSISTENT_RECONN
;
1536 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
|
1537 P2P_DEV_PREFER_PERSISTENT_RECONN
;
1543 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1544 enum p2p_wps_method wps_method
,
1545 int go_intent
, const u8
*own_interface_addr
,
1546 unsigned int force_freq
, int persistent_group
,
1547 const u8
*force_ssid
, size_t force_ssid_len
,
1548 int pd_before_go_neg
, unsigned int pref_freq
, u16 oob_pw_id
)
1550 struct p2p_device
*dev
;
1552 p2p_dbg(p2p
, "Request to start group negotiation - peer=" MACSTR
1553 " GO Intent=%d Intended Interface Address=" MACSTR
1554 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1556 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1557 wps_method
, persistent_group
, pd_before_go_neg
, oob_pw_id
);
1559 dev
= p2p_get_device(p2p
, peer_addr
);
1560 if (dev
== NULL
|| (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)) {
1561 p2p_dbg(p2p
, "Cannot connect to unknown P2P Device " MACSTR
,
1562 MAC2STR(peer_addr
));
1566 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
,
1567 go_intent
== 15) < 0)
1570 if (dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
) {
1571 if (!(dev
->info
.dev_capab
&
1572 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
)) {
1573 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1574 " that is in a group and is not discoverable",
1575 MAC2STR(peer_addr
));
1578 if (dev
->oper_freq
<= 0) {
1579 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1580 " with incomplete information",
1581 MAC2STR(peer_addr
));
1586 * First, try to connect directly. If the peer does not
1587 * acknowledge frames, assume it is sleeping and use device
1588 * discoverability via the GO at that point.
1594 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1595 force_ssid
, force_ssid_len
);
1596 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1597 p2p
->ssid_len
= force_ssid_len
;
1601 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1602 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1603 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
1604 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
1605 if (pd_before_go_neg
)
1606 dev
->flags
|= P2P_DEV_PD_BEFORE_GO_NEG
;
1608 dev
->flags
&= ~P2P_DEV_PD_BEFORE_GO_NEG
;
1610 * Assign dialog token and tie breaker here to use the same
1611 * values in each retry within the same GO Negotiation exchange.
1613 dev
->dialog_token
++;
1614 if (dev
->dialog_token
== 0)
1615 dev
->dialog_token
= 1;
1616 dev
->tie_breaker
= p2p
->next_tie_breaker
;
1617 p2p
->next_tie_breaker
= !p2p
->next_tie_breaker
;
1619 dev
->connect_reqs
= 0;
1620 dev
->go_neg_req_sent
= 0;
1621 dev
->go_state
= UNKNOWN_GO
;
1622 p2p_set_dev_persistent(dev
, persistent_group
);
1623 p2p
->go_intent
= go_intent
;
1624 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1626 if (p2p
->state
!= P2P_IDLE
)
1629 if (p2p
->after_scan_tx
) {
1631 * We need to drop the pending frame to avoid issues with the
1632 * new GO Negotiation, e.g., when the pending frame was from a
1633 * previous attempt at starting a GO Negotiation.
1635 p2p_dbg(p2p
, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
1636 os_free(p2p
->after_scan_tx
);
1637 p2p
->after_scan_tx
= NULL
;
1640 dev
->wps_method
= wps_method
;
1641 dev
->oob_pw_id
= oob_pw_id
;
1642 dev
->status
= P2P_SC_SUCCESS
;
1644 if (p2p
->p2p_scan_running
) {
1645 p2p_dbg(p2p
, "p2p_scan running - delay connect send");
1646 p2p
->start_after_scan
= P2P_AFTER_SCAN_CONNECT
;
1647 os_memcpy(p2p
->after_scan_peer
, peer_addr
, ETH_ALEN
);
1650 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1652 return p2p_connect_send(p2p
, dev
);
1656 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1657 enum p2p_wps_method wps_method
,
1658 int go_intent
, const u8
*own_interface_addr
,
1659 unsigned int force_freq
, int persistent_group
,
1660 const u8
*force_ssid
, size_t force_ssid_len
,
1661 unsigned int pref_freq
, u16 oob_pw_id
)
1663 struct p2p_device
*dev
;
1665 p2p_dbg(p2p
, "Request to authorize group negotiation - peer=" MACSTR
1666 " GO Intent=%d Intended Interface Address=" MACSTR
1667 " wps_method=%d persistent_group=%d oob_pw_id=%u",
1668 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1669 wps_method
, persistent_group
, oob_pw_id
);
1671 dev
= p2p_get_device(p2p
, peer_addr
);
1673 p2p_dbg(p2p
, "Cannot authorize unknown P2P Device " MACSTR
,
1674 MAC2STR(peer_addr
));
1678 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
, go_intent
==
1684 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1685 force_ssid
, force_ssid_len
);
1686 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1687 p2p
->ssid_len
= force_ssid_len
;
1691 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1692 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1693 dev
->go_neg_req_sent
= 0;
1694 dev
->go_state
= UNKNOWN_GO
;
1695 p2p_set_dev_persistent(dev
, persistent_group
);
1696 p2p
->go_intent
= go_intent
;
1697 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1699 dev
->wps_method
= wps_method
;
1700 dev
->oob_pw_id
= oob_pw_id
;
1701 dev
->status
= P2P_SC_SUCCESS
;
1707 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
1708 struct p2p_device
*dev
, struct p2p_message
*msg
)
1710 os_get_reltime(&dev
->last_seen
);
1712 p2p_copy_wps_info(p2p
, dev
, 0, msg
);
1714 if (msg
->listen_channel
) {
1716 freq
= p2p_channel_to_freq(msg
->listen_channel
[3],
1717 msg
->listen_channel
[4]);
1719 p2p_dbg(p2p
, "Unknown peer Listen channel: "
1720 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1721 msg
->listen_channel
[0],
1722 msg
->listen_channel
[1],
1723 msg
->listen_channel
[2],
1724 msg
->listen_channel
[3],
1725 msg
->listen_channel
[4]);
1727 p2p_dbg(p2p
, "Update peer " MACSTR
1728 " Listen channel: %u -> %u MHz",
1729 MAC2STR(dev
->info
.p2p_device_addr
),
1730 dev
->listen_freq
, freq
);
1731 dev
->listen_freq
= freq
;
1735 if (msg
->wfd_subelems
) {
1736 wpabuf_free(dev
->info
.wfd_subelems
);
1737 dev
->info
.wfd_subelems
= wpabuf_dup(msg
->wfd_subelems
);
1740 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
1741 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
1742 p2p_dbg(p2p
, "Completed device entry based on data from GO Negotiation Request");
1744 p2p_dbg(p2p
, "Created device entry based on GO Neg Req: "
1745 MACSTR
" dev_capab=0x%x group_capab=0x%x name='%s' "
1747 MAC2STR(dev
->info
.p2p_device_addr
),
1748 dev
->info
.dev_capab
, dev
->info
.group_capab
,
1749 dev
->info
.device_name
, dev
->listen_freq
);
1752 dev
->flags
&= ~P2P_DEV_GROUP_CLIENT_ONLY
;
1754 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
1755 p2p_dbg(p2p
, "Do not report rejected device");
1759 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
1760 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
1761 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
1765 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
)
1767 os_memcpy(ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1768 p2p_random((char *) &ssid
[P2P_WILDCARD_SSID_LEN
], 2);
1769 os_memcpy(&ssid
[P2P_WILDCARD_SSID_LEN
+ 2],
1770 p2p
->cfg
->ssid_postfix
, p2p
->cfg
->ssid_postfix_len
);
1771 *ssid_len
= P2P_WILDCARD_SSID_LEN
+ 2 + p2p
->cfg
->ssid_postfix_len
;
1775 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
)
1777 if (p2p
->ssid_set
) {
1778 os_memcpy(params
->ssid
, p2p
->ssid
, p2p
->ssid_len
);
1779 params
->ssid_len
= p2p
->ssid_len
;
1781 p2p_build_ssid(p2p
, params
->ssid
, ¶ms
->ssid_len
);
1785 p2p_random(params
->passphrase
, p2p
->cfg
->passphrase_len
);
1790 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
)
1792 struct p2p_go_neg_results res
;
1793 int go
= peer
->go_state
== LOCAL_GO
;
1794 struct p2p_channels intersection
;
1796 p2p_dbg(p2p
, "GO Negotiation with " MACSTR
" completed (%s will be GO)",
1797 MAC2STR(peer
->info
.p2p_device_addr
), go
? "local end" : "peer");
1799 os_memset(&res
, 0, sizeof(res
));
1801 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
1802 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
1803 res
.wps_method
= peer
->wps_method
;
1804 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
) {
1805 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_RECONN
)
1806 res
.persistent_group
= 2;
1808 res
.persistent_group
= 1;
1812 /* Setup AP mode for WPS provisioning */
1813 res
.freq
= p2p_channel_to_freq(p2p
->op_reg_class
,
1815 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1816 res
.ssid_len
= p2p
->ssid_len
;
1817 p2p_random(res
.passphrase
, p2p
->cfg
->passphrase_len
);
1819 res
.freq
= peer
->oper_freq
;
1820 if (p2p
->ssid_len
) {
1821 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1822 res
.ssid_len
= p2p
->ssid_len
;
1826 p2p_channels_dump(p2p
, "own channels", &p2p
->channels
);
1827 p2p_channels_dump(p2p
, "peer channels", &peer
->channels
);
1828 p2p_channels_intersect(&p2p
->channels
, &peer
->channels
,
1831 p2p_channels_remove_freqs(&intersection
, &p2p
->no_go_freq
);
1832 p2p_channels_dump(p2p
, "intersection after no-GO removal",
1836 p2p_channels_to_freqs(&intersection
, res
.freq_list
,
1839 res
.peer_config_timeout
= go
? peer
->client_timeout
: peer
->go_timeout
;
1841 p2p_clear_timeout(p2p
);
1843 peer
->go_neg_req_sent
= 0;
1844 peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
1845 peer
->wps_method
= WPS_NOT_READY
;
1846 peer
->oob_pw_id
= 0;
1847 wpabuf_free(peer
->go_neg_conf
);
1848 peer
->go_neg_conf
= NULL
;
1850 p2p_set_state(p2p
, P2P_PROVISIONING
);
1851 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
1855 static void p2p_rx_p2p_action(struct p2p_data
*p2p
, const u8
*sa
,
1856 const u8
*data
, size_t len
, int rx_freq
)
1858 p2p_dbg(p2p
, "RX P2P Public Action from " MACSTR
, MAC2STR(sa
));
1859 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Public Action contents", data
, len
);
1865 case P2P_GO_NEG_REQ
:
1866 p2p_process_go_neg_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1868 case P2P_GO_NEG_RESP
:
1869 p2p_process_go_neg_resp(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1871 case P2P_GO_NEG_CONF
:
1872 p2p_process_go_neg_conf(p2p
, sa
, data
+ 1, len
- 1);
1874 case P2P_INVITATION_REQ
:
1875 p2p_process_invitation_req(p2p
, sa
, data
+ 1, len
- 1,
1878 case P2P_INVITATION_RESP
:
1879 p2p_process_invitation_resp(p2p
, sa
, data
+ 1, len
- 1);
1881 case P2P_PROV_DISC_REQ
:
1882 p2p_process_prov_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1884 case P2P_PROV_DISC_RESP
:
1885 p2p_process_prov_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1887 case P2P_DEV_DISC_REQ
:
1888 p2p_process_dev_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1890 case P2P_DEV_DISC_RESP
:
1891 p2p_process_dev_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1894 p2p_dbg(p2p
, "Unsupported P2P Public Action frame type %d",
1901 static void p2p_rx_action_public(struct p2p_data
*p2p
, const u8
*da
,
1902 const u8
*sa
, const u8
*bssid
, const u8
*data
,
1903 size_t len
, int freq
)
1909 case WLAN_PA_VENDOR_SPECIFIC
:
1914 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1920 p2p_rx_p2p_action(p2p
, sa
, data
, len
, freq
);
1922 case WLAN_PA_GAS_INITIAL_REQ
:
1923 p2p_rx_gas_initial_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1925 case WLAN_PA_GAS_INITIAL_RESP
:
1926 p2p_rx_gas_initial_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1928 case WLAN_PA_GAS_COMEBACK_REQ
:
1929 p2p_rx_gas_comeback_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1931 case WLAN_PA_GAS_COMEBACK_RESP
:
1932 p2p_rx_gas_comeback_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1938 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1939 const u8
*bssid
, u8 category
,
1940 const u8
*data
, size_t len
, int freq
)
1942 if (category
== WLAN_ACTION_PUBLIC
) {
1943 p2p_rx_action_public(p2p
, da
, sa
, bssid
, data
, len
, freq
);
1947 if (category
!= WLAN_ACTION_VENDOR_SPECIFIC
)
1953 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1958 /* P2P action frame */
1959 p2p_dbg(p2p
, "RX P2P Action from " MACSTR
, MAC2STR(sa
));
1960 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Action contents", data
, len
);
1966 p2p_dbg(p2p
, "Received P2P Action - Notice of Absence");
1969 case P2P_PRESENCE_REQ
:
1970 p2p_process_presence_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1972 case P2P_PRESENCE_RESP
:
1973 p2p_process_presence_resp(p2p
, da
, sa
, data
+ 1, len
- 1);
1975 case P2P_GO_DISC_REQ
:
1976 p2p_process_go_disc_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1979 p2p_dbg(p2p
, "Received P2P Action - unknown type %u", data
[0]);
1985 static void p2p_go_neg_start(void *eloop_ctx
, void *timeout_ctx
)
1987 struct p2p_data
*p2p
= eloop_ctx
;
1988 if (p2p
->go_neg_peer
== NULL
)
1990 if (p2p
->pending_listen_freq
) {
1991 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_go_neg_start");
1992 p2p
->pending_listen_freq
= 0;
1994 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1995 p2p
->go_neg_peer
->status
= P2P_SC_SUCCESS
;
1997 * Set new timeout to make sure a previously set one does not expire
1998 * too quickly while waiting for the GO Negotiation to complete.
2000 p2p_set_timeout(p2p
, 0, 500000);
2001 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
2005 static void p2p_invite_start(void *eloop_ctx
, void *timeout_ctx
)
2007 struct p2p_data
*p2p
= eloop_ctx
;
2008 if (p2p
->invite_peer
== NULL
)
2010 if (p2p
->pending_listen_freq
) {
2011 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_invite_start");
2012 p2p
->pending_listen_freq
= 0;
2014 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
2015 p2p_invite_send(p2p
, p2p
->invite_peer
, p2p
->invite_go_dev_addr
,
2016 p2p
->invite_dev_pw_id
);
2020 static void p2p_add_dev_from_probe_req(struct p2p_data
*p2p
, const u8
*addr
,
2021 const u8
*ie
, size_t ie_len
)
2023 struct p2p_message msg
;
2024 struct p2p_device
*dev
;
2026 os_memset(&msg
, 0, sizeof(msg
));
2027 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0 || msg
.p2p_attributes
== NULL
)
2029 p2p_parse_free(&msg
);
2030 return; /* not a P2P probe */
2033 if (msg
.ssid
== NULL
|| msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
2034 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
2036 /* The Probe Request is not part of P2P Device Discovery. It is
2037 * not known whether the source address of the frame is the P2P
2038 * Device Address or P2P Interface Address. Do not add a new
2039 * peer entry based on this frames.
2041 p2p_parse_free(&msg
);
2045 dev
= p2p_get_device(p2p
, addr
);
2047 if (msg
.listen_channel
) {
2050 if (dev
->country
[0] == 0)
2051 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2053 freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
2054 msg
.listen_channel
[4]);
2056 if (freq
> 0 && dev
->listen_freq
!= freq
) {
2058 "Updated peer " MACSTR
" Listen channel (Probe Request): %d -> %d MHz",
2059 MAC2STR(addr
), dev
->listen_freq
, freq
);
2060 dev
->listen_freq
= freq
;
2064 os_get_reltime(&dev
->last_seen
);
2065 p2p_parse_free(&msg
);
2066 return; /* already known */
2069 dev
= p2p_create_device(p2p
, addr
);
2071 p2p_parse_free(&msg
);
2075 os_get_reltime(&dev
->last_seen
);
2076 dev
->flags
|= P2P_DEV_PROBE_REQ_ONLY
;
2078 if (msg
.listen_channel
) {
2079 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2080 dev
->listen_freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
2081 msg
.listen_channel
[4]);
2084 p2p_copy_wps_info(p2p
, dev
, 1, &msg
);
2086 if (msg
.wfd_subelems
) {
2087 wpabuf_free(dev
->info
.wfd_subelems
);
2088 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
2091 p2p_parse_free(&msg
);
2093 p2p_dbg(p2p
, "Created device entry based on Probe Req: " MACSTR
2094 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
2095 MAC2STR(dev
->info
.p2p_device_addr
), dev
->info
.dev_capab
,
2096 dev
->info
.group_capab
, dev
->info
.device_name
,
2101 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
2103 struct p2p_message
*msg
)
2105 struct p2p_device
*dev
;
2107 dev
= p2p_get_device(p2p
, addr
);
2109 os_get_reltime(&dev
->last_seen
);
2110 return dev
; /* already known */
2113 dev
= p2p_create_device(p2p
, addr
);
2117 p2p_add_dev_info(p2p
, addr
, dev
, msg
);
2123 static int dev_type_match(const u8
*dev_type
, const u8
*req_dev_type
)
2125 if (os_memcmp(dev_type
, req_dev_type
, WPS_DEV_TYPE_LEN
) == 0)
2127 if (os_memcmp(dev_type
, req_dev_type
, 2) == 0 &&
2128 WPA_GET_BE32(&req_dev_type
[2]) == 0 &&
2129 WPA_GET_BE16(&req_dev_type
[6]) == 0)
2130 return 1; /* Category match with wildcard OUI/sub-category */
2135 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
2136 size_t num_req_dev_type
)
2139 for (i
= 0; i
< num_req_dev_type
; i
++) {
2140 if (dev_type_match(dev_type
, req_dev_type
[i
]))
2148 * p2p_match_dev_type - Match local device type with requested type
2149 * @p2p: P2P module context from p2p_init()
2150 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2151 * Returns: 1 on match, 0 on mismatch
2153 * This function can be used to match the Requested Device Type attribute in
2154 * WPS IE with the local device types for deciding whether to reply to a Probe
2157 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
)
2159 struct wps_parse_attr attr
;
2162 if (wps_parse_msg(wps
, &attr
))
2163 return 1; /* assume no Requested Device Type attributes */
2165 if (attr
.num_req_dev_type
== 0)
2166 return 1; /* no Requested Device Type attributes -> match */
2168 if (dev_type_list_match(p2p
->cfg
->pri_dev_type
, attr
.req_dev_type
,
2169 attr
.num_req_dev_type
))
2170 return 1; /* Own Primary Device Type matches */
2172 for (i
= 0; i
< p2p
->cfg
->num_sec_dev_types
; i
++) {
2173 if (dev_type_list_match(p2p
->cfg
->sec_dev_type
[i
],
2175 attr
.num_req_dev_type
))
2176 return 1; /* Own Secondary Device Type matches */
2179 /* No matching device type found */
2184 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
,
2185 const u8
*query_hash
,
2193 #ifdef CONFIG_WIFI_DISPLAY
2194 if (p2p
->wfd_ie_probe_resp
)
2195 extra
= wpabuf_len(p2p
->wfd_ie_probe_resp
);
2196 #endif /* CONFIG_WIFI_DISPLAY */
2198 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2199 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2202 extra
+= MAX_SVC_ADV_IE_LEN
;
2204 buf
= wpabuf_alloc(1000 + extra
);
2208 if (p2p
->go_neg_peer
) {
2209 /* Advertise immediate availability of WPS credential */
2210 pw_id
= p2p_wps_method_pw_id(p2p
->go_neg_peer
->wps_method
);
2213 if (p2p_build_wps_ie(p2p
, buf
, pw_id
, 1) < 0) {
2214 p2p_dbg(p2p
, "Failed to build WPS IE for Probe Response");
2219 #ifdef CONFIG_WIFI_DISPLAY
2220 if (p2p
->wfd_ie_probe_resp
)
2221 wpabuf_put_buf(buf
, p2p
->wfd_ie_probe_resp
);
2222 #endif /* CONFIG_WIFI_DISPLAY */
2224 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2226 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2229 len
= p2p_buf_add_ie_hdr(buf
);
2230 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
2231 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
2232 if (p2p
->ext_listen_interval
)
2233 p2p_buf_add_ext_listen_timing(buf
, p2p
->ext_listen_period
,
2234 p2p
->ext_listen_interval
);
2235 p2p_buf_add_device_info(buf
, p2p
, NULL
);
2236 p2p_buf_update_ie_hdr(buf
, len
);
2239 p2p_buf_add_service_instance(buf
, p2p
, query_count
, query_hash
,
2240 p2p
->p2ps_adv_list
);
2246 static int p2p_build_probe_resp_buf(struct p2p_data
*p2p
, struct wpabuf
*buf
,
2248 const u8
*addr
, int rx_freq
)
2250 struct ieee80211_mgmt
*resp
;
2251 u8 channel
, op_class
;
2253 resp
= wpabuf_put(buf
, offsetof(struct ieee80211_mgmt
,
2254 u
.probe_resp
.variable
));
2256 resp
->frame_control
= host_to_le16((WLAN_FC_TYPE_MGMT
<< 2) |
2257 (WLAN_FC_STYPE_PROBE_RESP
<< 4));
2258 os_memcpy(resp
->da
, addr
, ETH_ALEN
);
2259 os_memcpy(resp
->sa
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2260 os_memcpy(resp
->bssid
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2261 resp
->u
.probe_resp
.beacon_int
= host_to_le16(100);
2262 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2263 resp
->u
.probe_resp
.capab_info
=
2264 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
|
2265 WLAN_CAPABILITY_PRIVACY
|
2266 WLAN_CAPABILITY_SHORT_SLOT_TIME
);
2268 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
2269 wpabuf_put_u8(buf
, P2P_WILDCARD_SSID_LEN
);
2270 wpabuf_put_data(buf
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
2272 wpabuf_put_u8(buf
, WLAN_EID_SUPP_RATES
);
2273 wpabuf_put_u8(buf
, 8);
2274 wpabuf_put_u8(buf
, (60 / 5) | 0x80);
2275 wpabuf_put_u8(buf
, 90 / 5);
2276 wpabuf_put_u8(buf
, (120 / 5) | 0x80);
2277 wpabuf_put_u8(buf
, 180 / 5);
2278 wpabuf_put_u8(buf
, (240 / 5) | 0x80);
2279 wpabuf_put_u8(buf
, 360 / 5);
2280 wpabuf_put_u8(buf
, 480 / 5);
2281 wpabuf_put_u8(buf
, 540 / 5);
2284 channel
= p2p
->cfg
->channel
;
2285 } else if (p2p_freq_to_channel(rx_freq
, &op_class
, &channel
)) {
2286 p2p_err(p2p
, "Failed to convert freq to channel");
2290 wpabuf_put_u8(buf
, WLAN_EID_DS_PARAMS
);
2291 wpabuf_put_u8(buf
, 1);
2292 wpabuf_put_u8(buf
, channel
);
2294 wpabuf_put_buf(buf
, ies
);
2299 static int p2p_service_find_asp(struct p2p_data
*p2p
, const u8
*hash
)
2301 struct p2ps_advertisement
*adv_data
;
2304 p2p_dbg(p2p
, "ASP find - ASP list: %p", p2p
->p2ps_adv_list
);
2306 /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
2307 any_wfa
= os_memcmp(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
) == 0;
2309 adv_data
= p2p
->p2ps_adv_list
;
2311 if (os_memcmp(hash
, adv_data
->hash
, P2PS_HASH_LEN
) == 0)
2312 return 1; /* exact hash match */
2314 os_strncmp(adv_data
->svc_name
, P2PS_WILD_HASH_STR
,
2315 os_strlen(P2PS_WILD_HASH_STR
)) == 0)
2316 return 1; /* WFA service match */
2317 adv_data
= adv_data
->next
;
2324 static enum p2p_probe_req_status
2325 p2p_reply_probe(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2326 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2327 unsigned int rx_freq
)
2329 struct ieee802_11_elems elems
;
2331 struct p2p_message msg
;
2334 if (ieee802_11_parse_elems((u8
*) ie
, ie_len
, &elems
, 0) ==
2336 /* Ignore invalid Probe Request frames */
2337 p2p_dbg(p2p
, "Could not parse Probe Request frame - ignore it");
2338 return P2P_PREQ_MALFORMED
;
2341 if (elems
.p2p
== NULL
) {
2342 /* not a P2P probe - ignore it */
2343 p2p_dbg(p2p
, "Not a P2P probe - ignore it");
2344 return P2P_PREQ_NOT_P2P
;
2347 if (dst
&& !is_broadcast_ether_addr(dst
) &&
2348 os_memcmp(dst
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2349 /* Not sent to the broadcast address or our P2P Device Address
2351 p2p_dbg(p2p
, "Probe Req DA " MACSTR
" not ours - ignore it",
2353 return P2P_PREQ_NOT_PROCESSED
;
2356 if (bssid
&& !is_broadcast_ether_addr(bssid
)) {
2357 /* Not sent to the Wildcard BSSID */
2358 p2p_dbg(p2p
, "Probe Req BSSID " MACSTR
" not wildcard - ignore it",
2360 return P2P_PREQ_NOT_PROCESSED
;
2363 if (elems
.ssid
== NULL
|| elems
.ssid_len
!= P2P_WILDCARD_SSID_LEN
||
2364 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
) !=
2366 /* not using P2P Wildcard SSID - ignore */
2367 p2p_dbg(p2p
, "Probe Req not using P2P Wildcard SSID - ignore it");
2368 return P2P_PREQ_NOT_PROCESSED
;
2371 if (supp_rates_11b_only(&elems
)) {
2372 /* Indicates support for 11b rates only */
2373 p2p_dbg(p2p
, "Probe Req with 11b rates only supported - ignore it");
2374 return P2P_PREQ_NOT_P2P
;
2377 os_memset(&msg
, 0, sizeof(msg
));
2378 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0) {
2379 /* Could not parse P2P attributes */
2380 p2p_dbg(p2p
, "Could not parse P2P attributes in Probe Req - ignore it");
2381 return P2P_PREQ_NOT_P2P
;
2384 if (msg
.service_hash
&& msg
.service_hash_count
) {
2385 const u8
*hash
= msg
.service_hash
;
2387 int p2ps_svc_found
= 0;
2389 p2p_dbg(p2p
, "in_listen=%d drv_in_listen=%d when received P2PS Probe Request at %u MHz; own Listen channel %u, pending listen freq %u MHz",
2390 p2p
->in_listen
, p2p
->drv_in_listen
, rx_freq
,
2391 p2p
->cfg
->channel
, p2p
->pending_listen_freq
);
2393 if (!p2p
->in_listen
&& !p2p
->drv_in_listen
&&
2394 p2p
->pending_listen_freq
&& rx_freq
&&
2395 rx_freq
!= p2p
->pending_listen_freq
) {
2396 p2p_dbg(p2p
, "Do not reply to Probe Request frame that was received on %u MHz while waiting to start Listen state on %u MHz",
2397 rx_freq
, p2p
->pending_listen_freq
);
2398 p2p_parse_free(&msg
);
2399 return P2P_PREQ_NOT_LISTEN
;
2402 for (i
= 0; i
< msg
.service_hash_count
; i
++) {
2403 if (p2p_service_find_asp(p2p
, hash
)) {
2404 p2p_dbg(p2p
, "Service Hash match found: "
2405 MACSTR
, MAC2STR(hash
));
2409 hash
+= P2PS_HASH_LEN
;
2412 /* Probed hash unknown */
2413 if (!p2ps_svc_found
) {
2414 p2p_dbg(p2p
, "No Service Hash match found");
2415 p2p_parse_free(&msg
);
2416 return P2P_PREQ_NOT_PROCESSED
;
2419 /* This is not a P2PS Probe Request */
2420 p2p_dbg(p2p
, "No P2PS Hash in Probe Request");
2422 if (!p2p
->in_listen
|| !p2p
->drv_in_listen
) {
2423 /* not in Listen state - ignore Probe Request */
2424 p2p_dbg(p2p
, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2425 p2p
->in_listen
, p2p
->drv_in_listen
);
2426 p2p_parse_free(&msg
);
2427 return P2P_PREQ_NOT_LISTEN
;
2431 if (msg
.device_id
&&
2432 os_memcmp(msg
.device_id
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2433 /* Device ID did not match */
2434 p2p_dbg(p2p
, "Probe Req requested Device ID " MACSTR
" did not match - ignore it",
2435 MAC2STR(msg
.device_id
));
2436 p2p_parse_free(&msg
);
2437 return P2P_PREQ_NOT_PROCESSED
;
2440 /* Check Requested Device Type match */
2441 if (msg
.wps_attributes
&&
2442 !p2p_match_dev_type(p2p
, msg
.wps_attributes
)) {
2443 /* No match with Requested Device Type */
2444 p2p_dbg(p2p
, "Probe Req requestred Device Type did not match - ignore it");
2445 p2p_parse_free(&msg
);
2446 return P2P_PREQ_NOT_PROCESSED
;
2449 if (!p2p
->cfg
->send_probe_resp
) {
2450 /* Response generated elsewhere */
2451 p2p_dbg(p2p
, "Probe Resp generated elsewhere - do not generate additional response");
2452 p2p_parse_free(&msg
);
2453 return P2P_PREQ_NOT_PROCESSED
;
2456 p2p_dbg(p2p
, "Reply to P2P Probe Request in Listen state");
2459 * We do not really have a specific BSS that this frame is advertising,
2460 * so build a frame that has some information in valid format. This is
2461 * really only used for discovery purposes, not to learn exact BSS
2464 ies
= p2p_build_probe_resp_ies(p2p
, msg
.service_hash
,
2465 msg
.service_hash_count
);
2466 p2p_parse_free(&msg
);
2468 return P2P_PREQ_NOT_PROCESSED
;
2470 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
2473 return P2P_PREQ_NOT_PROCESSED
;
2476 if (p2p_build_probe_resp_buf(p2p
, buf
, ies
, addr
, rx_freq
)) {
2479 return P2P_PREQ_NOT_PROCESSED
;
2484 p2p
->cfg
->send_probe_resp(p2p
->cfg
->cb_ctx
, buf
, rx_freq
);
2488 return P2P_PREQ_PROCESSED
;
2492 enum p2p_probe_req_status
2493 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2494 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2495 unsigned int rx_freq
, int p2p_lo_started
)
2497 enum p2p_probe_req_status res
;
2499 p2p_add_dev_from_probe_req(p2p
, addr
, ie
, ie_len
);
2501 if (p2p_lo_started
) {
2503 "Probe Response is offloaded, do not reply Probe Request");
2504 return P2P_PREQ_PROCESSED
;
2507 res
= p2p_reply_probe(p2p
, addr
, dst
, bssid
, ie
, ie_len
, rx_freq
);
2508 if (res
!= P2P_PREQ_PROCESSED
&& res
!= P2P_PREQ_NOT_PROCESSED
)
2512 * Activate a pending GO Negotiation/Invite flow if a received Probe
2513 * Request frame is from an expected peer. Some devices may share the
2514 * same address for P2P and non-P2P STA running simultaneously. The
2515 * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
2516 * return values verified above ensure we are handling a Probe Request
2517 * frame from a P2P peer.
2519 if ((p2p
->state
== P2P_CONNECT
|| p2p
->state
== P2P_CONNECT_LISTEN
) &&
2521 os_memcmp(addr
, p2p
->go_neg_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2523 !(p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
2524 /* Received a Probe Request from GO Negotiation peer */
2525 p2p_dbg(p2p
, "Found GO Negotiation peer - try to start GO negotiation from timeout");
2526 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2527 eloop_register_timeout(0, 0, p2p_go_neg_start
, p2p
, NULL
);
2531 if ((p2p
->state
== P2P_INVITE
|| p2p
->state
== P2P_INVITE_LISTEN
) &&
2533 (p2p
->invite_peer
->flags
& P2P_DEV_WAIT_INV_REQ_ACK
) &&
2534 os_memcmp(addr
, p2p
->invite_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2536 /* Received a Probe Request from Invite peer */
2537 p2p_dbg(p2p
, "Found Invite peer - try to start Invite from timeout");
2538 eloop_cancel_timeout(p2p_invite_start
, p2p
, NULL
);
2539 eloop_register_timeout(0, 0, p2p_invite_start
, p2p
, NULL
);
2547 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data
*p2p
, const u8
*bssid
,
2548 u8
*buf
, size_t len
, struct wpabuf
*p2p_ie
)
2555 struct p2p_message msg
;
2558 return 0; /* WLAN AP is not a P2P manager */
2560 os_memset(&msg
, 0, sizeof(msg
));
2561 if (p2p_parse_p2p_ie(p2p_ie
, &msg
) < 0)
2564 p2p_dbg(p2p
, "BSS P2P manageability %s",
2565 msg
.manageability
? "enabled" : "disabled");
2567 if (!msg
.manageability
)
2571 * (Re)Association Request - P2P IE
2572 * P2P Capability attribute (shall be present)
2573 * P2P Interface attribute (present if concurrent device and
2574 * P2P Management is enabled)
2576 tmp
= wpabuf_alloc(200);
2580 lpos
= p2p_buf_add_ie_hdr(tmp
);
2582 if (p2p
->num_groups
> 0) {
2583 group_capab
|= P2P_GROUP_CAPAB_GROUP_OWNER
;
2584 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2585 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
) &&
2587 group_capab
|= P2P_GROUP_CAPAB_CROSS_CONN
;
2589 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, group_capab
);
2590 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2591 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
))
2592 p2p_buf_add_p2p_interface(tmp
, p2p
);
2593 p2p_buf_update_ie_hdr(tmp
, lpos
);
2595 tmplen
= wpabuf_len(tmp
);
2599 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2608 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
2609 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
)
2613 struct p2p_device
*peer
;
2619 return p2p_assoc_req_ie_wlan_ap(p2p
, bssid
, buf
, len
, p2p_ie
);
2621 #ifdef CONFIG_WIFI_DISPLAY
2622 if (p2p
->wfd_ie_assoc_req
)
2623 extra
= wpabuf_len(p2p
->wfd_ie_assoc_req
);
2624 #endif /* CONFIG_WIFI_DISPLAY */
2626 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2627 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2630 * (Re)Association Request - P2P IE
2631 * P2P Capability attribute (shall be present)
2632 * Extended Listen Timing (may be present)
2633 * P2P Device Info attribute (shall be present)
2635 tmp
= wpabuf_alloc(200 + extra
);
2639 #ifdef CONFIG_WIFI_DISPLAY
2640 if (p2p
->wfd_ie_assoc_req
)
2641 wpabuf_put_buf(tmp
, p2p
->wfd_ie_assoc_req
);
2642 #endif /* CONFIG_WIFI_DISPLAY */
2644 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2646 p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2648 peer
= bssid
? p2p_get_device(p2p
, bssid
) : NULL
;
2650 lpos
= p2p_buf_add_ie_hdr(tmp
);
2651 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, 0);
2652 if (p2p
->ext_listen_interval
)
2653 p2p_buf_add_ext_listen_timing(tmp
, p2p
->ext_listen_period
,
2654 p2p
->ext_listen_interval
);
2655 p2p_buf_add_device_info(tmp
, p2p
, peer
);
2656 p2p_buf_update_ie_hdr(tmp
, lpos
);
2658 tmplen
= wpabuf_len(tmp
);
2662 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2671 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
)
2673 struct wpabuf
*p2p_ie
;
2676 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, P2P_IE_VENDOR_TYPE
);
2680 ret
= p2p_attr_text(p2p_ie
, buf
, end
);
2681 wpabuf_free(p2p_ie
);
2686 struct p2ps_advertisement
*
2687 p2p_service_p2ps_id(struct p2p_data
*p2p
, u32 adv_id
)
2689 struct p2ps_advertisement
*adv_data
;
2694 adv_data
= p2p
->p2ps_adv_list
;
2696 if (adv_data
->id
== adv_id
)
2698 adv_data
= adv_data
->next
;
2705 int p2p_service_del_asp(struct p2p_data
*p2p
, u32 adv_id
)
2707 struct p2ps_advertisement
*adv_data
;
2708 struct p2ps_advertisement
**prior
;
2713 adv_data
= p2p
->p2ps_adv_list
;
2714 prior
= &p2p
->p2ps_adv_list
;
2716 if (adv_data
->id
== adv_id
) {
2717 p2p_dbg(p2p
, "Delete ASP adv_id=0x%x", adv_id
);
2718 *prior
= adv_data
->next
;
2722 prior
= &adv_data
->next
;
2723 adv_data
= adv_data
->next
;
2730 int p2p_service_add_asp(struct p2p_data
*p2p
, int auto_accept
, u32 adv_id
,
2731 const char *adv_str
, u8 svc_state
, u16 config_methods
,
2732 const char *svc_info
, const u8
*cpt_priority
)
2734 struct p2ps_advertisement
*adv_data
, *tmp
, **prev
;
2735 u8 buf
[P2PS_HASH_LEN
];
2736 size_t adv_data_len
, adv_len
, info_len
= 0;
2739 if (!p2p
|| !adv_str
|| !adv_str
[0] || !cpt_priority
)
2742 if (!(config_methods
& p2p
->cfg
->config_methods
)) {
2743 p2p_dbg(p2p
, "Config methods not supported svc: 0x%x dev: 0x%x",
2744 config_methods
, p2p
->cfg
->config_methods
);
2748 if (!p2ps_gen_hash(p2p
, adv_str
, buf
))
2752 info_len
= os_strlen(svc_info
);
2753 adv_len
= os_strlen(adv_str
);
2754 adv_data_len
= sizeof(struct p2ps_advertisement
) + adv_len
+ 1 +
2757 adv_data
= os_zalloc(adv_data_len
);
2761 os_memcpy(adv_data
->hash
, buf
, P2PS_HASH_LEN
);
2762 adv_data
->id
= adv_id
;
2763 adv_data
->state
= svc_state
;
2764 adv_data
->config_methods
= config_methods
& p2p
->cfg
->config_methods
;
2765 adv_data
->auto_accept
= (u8
) auto_accept
;
2766 os_memcpy(adv_data
->svc_name
, adv_str
, adv_len
);
2768 for (i
= 0; cpt_priority
[i
] && i
< P2PS_FEATURE_CAPAB_CPT_MAX
; i
++) {
2769 adv_data
->cpt_priority
[i
] = cpt_priority
[i
];
2770 adv_data
->cpt_mask
|= cpt_priority
[i
];
2773 if (svc_info
&& info_len
) {
2774 adv_data
->svc_info
= &adv_data
->svc_name
[adv_len
+ 1];
2775 os_memcpy(adv_data
->svc_info
, svc_info
, info_len
);
2779 * Group Advertisements by service string. They do not need to be
2780 * sorted, but groups allow easier Probe Response instance grouping
2782 tmp
= p2p
->p2ps_adv_list
;
2783 prev
= &p2p
->p2ps_adv_list
;
2785 if (tmp
->id
== adv_data
->id
) {
2786 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) != 0) {
2790 adv_data
->next
= tmp
->next
;
2795 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) == 0) {
2796 adv_data
->next
= tmp
->next
;
2797 tmp
->next
= adv_data
;
2805 /* No svc_name match found */
2806 adv_data
->next
= p2p
->p2ps_adv_list
;
2807 p2p
->p2ps_adv_list
= adv_data
;
2811 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
2812 adv_id
, adv_data
->config_methods
, svc_state
, adv_str
,
2813 adv_data
->cpt_mask
);
2819 void p2p_service_flush_asp(struct p2p_data
*p2p
)
2821 struct p2ps_advertisement
*adv
, *prev
;
2826 adv
= p2p
->p2ps_adv_list
;
2833 p2p
->p2ps_adv_list
= NULL
;
2834 p2ps_prov_free(p2p
);
2835 p2p_dbg(p2p
, "All ASP advertisements flushed");
2839 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
)
2841 struct p2p_message msg
;
2843 os_memset(&msg
, 0, sizeof(msg
));
2844 if (p2p_parse_p2p_ie(p2p_ie
, &msg
))
2847 if (msg
.p2p_device_addr
) {
2848 os_memcpy(dev_addr
, msg
.p2p_device_addr
, ETH_ALEN
);
2850 } else if (msg
.device_id
) {
2851 os_memcpy(dev_addr
, msg
.device_id
, ETH_ALEN
);
2858 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
)
2860 struct wpabuf
*p2p_ie
;
2863 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
,
2864 P2P_IE_VENDOR_TYPE
);
2867 ret
= p2p_parse_dev_addr_in_p2p_ie(p2p_ie
, dev_addr
);
2868 wpabuf_free(p2p_ie
);
2873 static void p2p_clear_go_neg(struct p2p_data
*p2p
)
2875 p2p
->go_neg_peer
= NULL
;
2876 p2p_clear_timeout(p2p
);
2877 p2p_set_state(p2p
, P2P_IDLE
);
2881 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
)
2883 if (p2p
->go_neg_peer
== NULL
) {
2884 p2p_dbg(p2p
, "No pending Group Formation - ignore WPS registration success notification");
2885 return; /* No pending Group Formation */
2888 if (os_memcmp(mac_addr
, p2p
->go_neg_peer
->intended_addr
, ETH_ALEN
) !=
2890 p2p_dbg(p2p
, "Ignore WPS registration success notification for "
2891 MACSTR
" (GO Negotiation peer " MACSTR
")",
2893 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2894 return; /* Ignore unexpected peer address */
2897 p2p_dbg(p2p
, "Group Formation completed successfully with " MACSTR
,
2900 p2p_clear_go_neg(p2p
);
2904 void p2p_group_formation_failed(struct p2p_data
*p2p
)
2906 if (p2p
->go_neg_peer
== NULL
) {
2907 p2p_dbg(p2p
, "No pending Group Formation - ignore group formation failure notification");
2908 return; /* No pending Group Formation */
2911 p2p_dbg(p2p
, "Group Formation failed with " MACSTR
,
2912 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2914 p2p_clear_go_neg(p2p
);
2918 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
)
2920 struct p2p_data
*p2p
;
2922 if (cfg
->max_peers
< 1 ||
2923 cfg
->passphrase_len
< 8 || cfg
->passphrase_len
> 63)
2926 p2p
= os_zalloc(sizeof(*p2p
) + sizeof(*cfg
));
2929 p2p
->cfg
= (struct p2p_config
*) (p2p
+ 1);
2930 os_memcpy(p2p
->cfg
, cfg
, sizeof(*cfg
));
2932 p2p
->cfg
->dev_name
= os_strdup(cfg
->dev_name
);
2933 if (cfg
->manufacturer
)
2934 p2p
->cfg
->manufacturer
= os_strdup(cfg
->manufacturer
);
2935 if (cfg
->model_name
)
2936 p2p
->cfg
->model_name
= os_strdup(cfg
->model_name
);
2937 if (cfg
->model_number
)
2938 p2p
->cfg
->model_number
= os_strdup(cfg
->model_number
);
2939 if (cfg
->serial_number
)
2940 p2p
->cfg
->serial_number
= os_strdup(cfg
->serial_number
);
2941 if (cfg
->pref_chan
) {
2942 p2p
->cfg
->pref_chan
= os_malloc(cfg
->num_pref_chan
*
2943 sizeof(struct p2p_channel
));
2944 if (p2p
->cfg
->pref_chan
) {
2945 os_memcpy(p2p
->cfg
->pref_chan
, cfg
->pref_chan
,
2946 cfg
->num_pref_chan
*
2947 sizeof(struct p2p_channel
));
2949 p2p
->cfg
->num_pref_chan
= 0;
2952 p2ps_gen_hash(p2p
, P2PS_WILD_HASH_STR
, p2p
->wild_card_hash
);
2954 p2p
->min_disc_int
= 1;
2955 p2p
->max_disc_int
= 3;
2956 p2p
->max_disc_tu
= -1;
2958 if (os_get_random(&p2p
->next_tie_breaker
, 1) < 0)
2959 p2p
->next_tie_breaker
= 0;
2960 p2p
->next_tie_breaker
&= 0x01;
2961 if (cfg
->sd_request
)
2962 p2p
->dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
2963 p2p
->dev_capab
|= P2P_DEV_CAPAB_INVITATION_PROCEDURE
;
2964 if (cfg
->concurrent_operations
)
2965 p2p
->dev_capab
|= P2P_DEV_CAPAB_CONCURRENT_OPER
;
2966 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
2968 dl_list_init(&p2p
->devices
);
2970 p2p
->go_timeout
= 100;
2971 p2p
->client_timeout
= 20;
2972 p2p
->num_p2p_sd_queries
= 0;
2974 p2p_dbg(p2p
, "initialized");
2975 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
2976 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
2982 void p2p_deinit(struct p2p_data
*p2p
)
2984 #ifdef CONFIG_WIFI_DISPLAY
2985 wpabuf_free(p2p
->wfd_ie_beacon
);
2986 wpabuf_free(p2p
->wfd_ie_probe_req
);
2987 wpabuf_free(p2p
->wfd_ie_probe_resp
);
2988 wpabuf_free(p2p
->wfd_ie_assoc_req
);
2989 wpabuf_free(p2p
->wfd_ie_invitation
);
2990 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
2991 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
2992 wpabuf_free(p2p
->wfd_ie_go_neg
);
2993 wpabuf_free(p2p
->wfd_dev_info
);
2994 wpabuf_free(p2p
->wfd_assoc_bssid
);
2995 wpabuf_free(p2p
->wfd_coupled_sink_info
);
2996 wpabuf_free(p2p
->wfd_r2_dev_info
);
2997 #endif /* CONFIG_WIFI_DISPLAY */
2999 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
3000 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
3001 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
3003 p2p_free_req_dev_types(p2p
);
3004 os_free(p2p
->cfg
->dev_name
);
3005 os_free(p2p
->cfg
->manufacturer
);
3006 os_free(p2p
->cfg
->model_name
);
3007 os_free(p2p
->cfg
->model_number
);
3008 os_free(p2p
->cfg
->serial_number
);
3009 os_free(p2p
->cfg
->pref_chan
);
3010 os_free(p2p
->groups
);
3011 p2ps_prov_free(p2p
);
3012 wpabuf_free(p2p
->sd_resp
);
3013 p2p_remove_wps_vendor_extensions(p2p
);
3014 os_free(p2p
->no_go_freq
.range
);
3015 p2p_service_flush_asp(p2p
);
3021 void p2p_flush(struct p2p_data
*p2p
)
3023 struct p2p_device
*dev
, *prev
;
3025 p2p_ext_listen(p2p
, 0, 0);
3027 dl_list_for_each_safe(dev
, prev
, &p2p
->devices
, struct p2p_device
,
3029 dl_list_del(&dev
->list
);
3030 p2p_device_free(p2p
, dev
);
3032 p2p_free_sd_queries(p2p
);
3033 os_free(p2p
->after_scan_tx
);
3034 p2p
->after_scan_tx
= NULL
;
3036 p2ps_prov_free(p2p
);
3037 p2p_reset_pending_pd(p2p
);
3038 p2p
->override_pref_op_class
= 0;
3039 p2p
->override_pref_channel
= 0;
3043 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
)
3045 struct p2p_device
*dev
;
3047 dev
= p2p_get_device(p2p
, addr
);
3051 p2p_dbg(p2p
, "Unauthorizing " MACSTR
, MAC2STR(addr
));
3053 if (p2p
->go_neg_peer
== dev
) {
3054 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
3055 p2p
->go_neg_peer
= NULL
;
3058 dev
->wps_method
= WPS_NOT_READY
;
3060 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
3061 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
3063 /* Check if after_scan_tx is for this peer. If so free it */
3064 if (p2p
->after_scan_tx
&&
3065 os_memcmp(addr
, p2p
->after_scan_tx
->dst
, ETH_ALEN
) == 0) {
3066 os_free(p2p
->after_scan_tx
);
3067 p2p
->after_scan_tx
= NULL
;
3074 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
)
3076 os_free(p2p
->cfg
->dev_name
);
3078 p2p
->cfg
->dev_name
= os_strdup(dev_name
);
3079 if (p2p
->cfg
->dev_name
== NULL
)
3082 p2p
->cfg
->dev_name
= NULL
;
3087 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
)
3089 os_free(p2p
->cfg
->manufacturer
);
3090 p2p
->cfg
->manufacturer
= NULL
;
3092 p2p
->cfg
->manufacturer
= os_strdup(manufacturer
);
3093 if (p2p
->cfg
->manufacturer
== NULL
)
3101 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
)
3103 os_free(p2p
->cfg
->model_name
);
3104 p2p
->cfg
->model_name
= NULL
;
3106 p2p
->cfg
->model_name
= os_strdup(model_name
);
3107 if (p2p
->cfg
->model_name
== NULL
)
3115 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
)
3117 os_free(p2p
->cfg
->model_number
);
3118 p2p
->cfg
->model_number
= NULL
;
3120 p2p
->cfg
->model_number
= os_strdup(model_number
);
3121 if (p2p
->cfg
->model_number
== NULL
)
3129 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
)
3131 os_free(p2p
->cfg
->serial_number
);
3132 p2p
->cfg
->serial_number
= NULL
;
3133 if (serial_number
) {
3134 p2p
->cfg
->serial_number
= os_strdup(serial_number
);
3135 if (p2p
->cfg
->serial_number
== NULL
)
3143 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
)
3145 p2p
->cfg
->config_methods
= config_methods
;
3149 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
)
3151 os_memcpy(p2p
->cfg
->uuid
, uuid
, 16);
3155 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
)
3157 os_memcpy(p2p
->cfg
->pri_dev_type
, pri_dev_type
, 8);
3162 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
3163 size_t num_dev_types
)
3165 if (num_dev_types
> P2P_SEC_DEVICE_TYPES
)
3166 num_dev_types
= P2P_SEC_DEVICE_TYPES
;
3167 p2p
->cfg
->num_sec_dev_types
= num_dev_types
;
3168 os_memcpy(p2p
->cfg
->sec_dev_type
, dev_types
, num_dev_types
* 8);
3173 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
)
3177 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3178 wpabuf_free(p2p
->wps_vendor_ext
[i
]);
3179 p2p
->wps_vendor_ext
[i
] = NULL
;
3184 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
3185 const struct wpabuf
*vendor_ext
)
3189 if (vendor_ext
== NULL
)
3192 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3193 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3196 if (i
>= P2P_MAX_WPS_VENDOR_EXT
)
3199 p2p
->wps_vendor_ext
[i
] = wpabuf_dup(vendor_ext
);
3200 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3207 int p2p_set_country(struct p2p_data
*p2p
, const char *country
)
3209 os_memcpy(p2p
->cfg
->country
, country
, 3);
3214 static int p2p_pre_find_operation(struct p2p_data
*p2p
, struct p2p_device
*dev
)
3218 if (dev
->sd_pending_bcast_queries
== 0) {
3219 /* Initialize with total number of registered broadcast
3221 dev
->sd_pending_bcast_queries
= p2p
->num_p2p_sd_queries
;
3224 res
= p2p_start_sd(p2p
, dev
);
3230 if (dev
->req_config_methods
&&
3231 !(dev
->flags
& P2P_DEV_PD_FOR_JOIN
)) {
3232 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3233 MACSTR
" (config methods 0x%x)",
3234 MAC2STR(dev
->info
.p2p_device_addr
),
3235 dev
->req_config_methods
);
3236 if (p2p_send_prov_disc_req(p2p
, dev
, 0, 0) == 0)
3244 void p2p_continue_find(struct p2p_data
*p2p
)
3246 struct p2p_device
*dev
;
3249 p2p_set_state(p2p
, P2P_SEARCH
);
3251 /* Continue from the device following the last iteration */
3253 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3254 if (dev
== p2p
->last_p2p_find_oper
) {
3260 res
= p2p_pre_find_operation(p2p
, dev
);
3262 p2p
->last_p2p_find_oper
= dev
;
3270 * Wrap around to the beginning of the list and continue until the last
3273 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3274 res
= p2p_pre_find_operation(p2p
, dev
);
3276 p2p
->last_p2p_find_oper
= dev
;
3281 if (dev
== p2p
->last_p2p_find_oper
)
3286 os_memset(p2p
->sd_query_no_ack
, 0, ETH_ALEN
);
3287 p2p_listen_in_find(p2p
, 1);
3291 static void p2p_sd_cb(struct p2p_data
*p2p
, int success
)
3293 p2p_dbg(p2p
, "Service Discovery Query TX callback: success=%d",
3295 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3299 if (is_zero_ether_addr(p2p
->sd_query_no_ack
)) {
3300 os_memcpy(p2p
->sd_query_no_ack
,
3301 p2p
->sd_peer
->info
.p2p_device_addr
,
3304 "First SD Query no-ACK in this search iteration: "
3305 MACSTR
, MAC2STR(p2p
->sd_query_no_ack
));
3307 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3309 p2p
->sd_peer
= NULL
;
3310 if (p2p
->state
!= P2P_IDLE
)
3311 p2p_continue_find(p2p
);
3315 if (p2p
->sd_peer
== NULL
) {
3316 p2p_dbg(p2p
, "No SD peer entry known");
3317 if (p2p
->state
!= P2P_IDLE
)
3318 p2p_continue_find(p2p
);
3322 if (p2p
->sd_query
&& p2p
->sd_query
->for_all_peers
) {
3323 /* Update the pending broadcast SD query count for this device
3325 p2p
->sd_peer
->sd_pending_bcast_queries
--;
3328 * If there are no pending broadcast queries for this device,
3329 * mark it as done (-1).
3331 if (p2p
->sd_peer
->sd_pending_bcast_queries
== 0)
3332 p2p
->sd_peer
->sd_pending_bcast_queries
= -1;
3335 /* Wait for response from the peer */
3336 p2p_set_state(p2p
, P2P_SD_DURING_FIND
);
3337 p2p_set_timeout(p2p
, 0, 200000);
3342 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3343 * @p2p: P2P module context from p2p_init()
3345 static void p2p_retry_pd(struct p2p_data
*p2p
)
3347 struct p2p_device
*dev
;
3350 * Retry the prov disc req attempt only for the peer that the user had
3354 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3355 if (os_memcmp(p2p
->pending_pd_devaddr
,
3356 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
3358 if (!dev
->req_config_methods
)
3361 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3362 MACSTR
" (config methods 0x%x)",
3363 MAC2STR(dev
->info
.p2p_device_addr
),
3364 dev
->req_config_methods
);
3365 p2p_send_prov_disc_req(p2p
, dev
,
3366 dev
->flags
& P2P_DEV_PD_FOR_JOIN
,
3367 p2p
->pd_force_freq
);
3373 static void p2p_prov_disc_cb(struct p2p_data
*p2p
, int success
)
3375 p2p_dbg(p2p
, "Provision Discovery Request TX callback: success=%d",
3379 * Postpone resetting the pending action state till after we actually
3380 * time out. This allows us to take some action like notifying any
3381 * interested parties about no response to the request.
3383 * When the timer (below) goes off we check in IDLE, SEARCH, or
3384 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3385 * requests in, if this was still pending and then raise notification.
3389 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3391 if (p2p
->user_initiated_pd
&&
3392 (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_LISTEN_ONLY
))
3394 /* Retry request from timeout to avoid busy loops */
3395 p2p
->pending_action_state
= P2P_PENDING_PD
;
3396 p2p_set_timeout(p2p
, 0, 50000);
3397 } else if (p2p
->state
!= P2P_IDLE
)
3398 p2p_continue_find(p2p
);
3399 else if (p2p
->user_initiated_pd
) {
3400 p2p
->pending_action_state
= P2P_PENDING_PD
;
3401 p2p_set_timeout(p2p
, 0, 300000);
3407 * If after PD Request the peer doesn't expect to receive PD Response
3408 * the PD Request ACK indicates a completion of the current PD. This
3409 * happens only on the advertiser side sending the follow-on PD Request
3410 * with the status different than 12 (Success: accepted by user).
3412 if (p2p
->p2ps_prov
&& !p2p
->p2ps_prov
->pd_seeker
&&
3413 p2p
->p2ps_prov
->status
!= P2P_SC_SUCCESS_DEFERRED
) {
3414 p2p_dbg(p2p
, "P2PS PD completion on Follow-on PD Request ACK");
3416 if (p2p
->send_action_in_progress
) {
3417 p2p
->send_action_in_progress
= 0;
3418 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3421 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3423 if (p2p
->cfg
->p2ps_prov_complete
) {
3424 p2p
->cfg
->p2ps_prov_complete(
3426 p2p
->p2ps_prov
->status
,
3427 p2p
->p2ps_prov
->adv_mac
,
3428 p2p
->p2ps_prov
->adv_mac
,
3429 p2p
->p2ps_prov
->session_mac
,
3430 NULL
, p2p
->p2ps_prov
->adv_id
,
3431 p2p
->p2ps_prov
->session_id
,
3432 0, 0, NULL
, 0, 0, 0,
3433 NULL
, NULL
, 0, 0, NULL
, 0);
3436 if (p2p
->user_initiated_pd
)
3437 p2p_reset_pending_pd(p2p
);
3439 p2ps_prov_free(p2p
);
3444 * This postponing, of resetting pending_action_state, needs to be
3445 * done only for user initiated PD requests and not internal ones.
3447 if (p2p
->user_initiated_pd
)
3448 p2p
->pending_action_state
= P2P_PENDING_PD
;
3450 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3452 /* Wait for response from the peer */
3453 if (p2p
->state
== P2P_SEARCH
)
3454 p2p_set_state(p2p
, P2P_PD_DURING_FIND
);
3455 p2p_set_timeout(p2p
, 0, 200000);
3459 static int p2p_check_after_scan_tx_continuation(struct p2p_data
*p2p
)
3461 if (p2p
->after_scan_tx_in_progress
) {
3462 p2p
->after_scan_tx_in_progress
= 0;
3463 if (p2p
->start_after_scan
!= P2P_AFTER_SCAN_NOTHING
&&
3464 p2p_run_after_scan(p2p
))
3466 if (p2p
->state
== P2P_SEARCH
) {
3467 p2p_dbg(p2p
, "Continue find after after_scan_tx completion");
3468 p2p_continue_find(p2p
);
3476 static void p2p_prov_disc_resp_cb(struct p2p_data
*p2p
, int success
)
3478 p2p_dbg(p2p
, "Provision Discovery Response TX callback: success=%d",
3481 if (p2p
->send_action_in_progress
) {
3482 p2p
->send_action_in_progress
= 0;
3483 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3486 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3489 goto continue_search
;
3491 if (!p2p
->cfg
->prov_disc_resp_cb
||
3492 p2p
->cfg
->prov_disc_resp_cb(p2p
->cfg
->cb_ctx
) < 1)
3493 goto continue_search
;
3496 "Post-Provision Discovery operations started - do not try to continue other P2P operations");
3500 p2p_check_after_scan_tx_continuation(p2p
);
3504 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
3505 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
3508 if (os_reltime_before(rx_time
, &p2p
->find_start
)) {
3510 * The driver may have cached (e.g., in cfg80211 BSS table) the
3511 * scan results for relatively long time. To avoid reporting
3512 * stale information, update P2P peers only based on results
3513 * that have based on frames received after the last p2p_find
3514 * operation was started.
3516 p2p_dbg(p2p
, "Ignore old scan result for " MACSTR
3517 " (rx_time=%u.%06u find_start=%u.%06u)",
3518 MAC2STR(bssid
), (unsigned int) rx_time
->sec
,
3519 (unsigned int) rx_time
->usec
,
3520 (unsigned int) p2p
->find_start
.sec
,
3521 (unsigned int) p2p
->find_start
.usec
);
3525 p2p_add_device(p2p
, bssid
, freq
, rx_time
, level
, ies
, ies_len
, 1);
3531 void p2p_scan_res_handled(struct p2p_data
*p2p
)
3533 if (!p2p
->p2p_scan_running
) {
3534 p2p_dbg(p2p
, "p2p_scan was not running, but scan results received");
3536 p2p
->p2p_scan_running
= 0;
3537 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
3539 if (p2p_run_after_scan(p2p
))
3541 if (p2p
->state
== P2P_SEARCH
)
3542 p2p_continue_find(p2p
);
3546 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
,
3552 #ifdef CONFIG_WIFI_DISPLAY
3553 if (p2p
->wfd_ie_probe_req
)
3554 wpabuf_put_buf(ies
, p2p
->wfd_ie_probe_req
);
3555 #endif /* CONFIG_WIFI_DISPLAY */
3557 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3559 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3561 len
= p2p_buf_add_ie_hdr(ies
);
3563 dev_capab
= p2p
->dev_capab
& ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3565 /* P2PS requires Probe Request frames to include SD bit */
3566 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3567 dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
3569 p2p_buf_add_capability(ies
, dev_capab
, 0);
3572 p2p_buf_add_device_id(ies
, dev_id
);
3573 if (p2p
->cfg
->reg_class
&& p2p
->cfg
->channel
)
3574 p2p_buf_add_listen_channel(ies
, p2p
->cfg
->country
,
3575 p2p
->cfg
->reg_class
,
3577 if (p2p
->ext_listen_interval
)
3578 p2p_buf_add_ext_listen_timing(ies
, p2p
->ext_listen_period
,
3579 p2p
->ext_listen_interval
);
3581 if (bands
& BAND_60_GHZ
)
3582 p2p_buf_add_device_info(ies
, p2p
, NULL
);
3584 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3585 p2p_buf_add_service_hash(ies
, p2p
);
3587 /* TODO: p2p_buf_add_operating_channel() if GO */
3588 p2p_buf_update_ie_hdr(ies
, len
);
3592 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
)
3596 #ifdef CONFIG_WIFI_DISPLAY
3597 if (p2p
&& p2p
->wfd_ie_probe_req
)
3598 len
+= wpabuf_len(p2p
->wfd_ie_probe_req
);
3599 #endif /* CONFIG_WIFI_DISPLAY */
3601 if (p2p
&& p2p
->vendor_elem
&&
3602 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3603 len
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3609 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
)
3611 return p2p_attr_text(p2p_ie
, buf
, end
);
3615 static void p2p_go_neg_req_cb(struct p2p_data
*p2p
, int success
)
3617 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3620 p2p_dbg(p2p
, "GO Negotiation Request TX callback: success=%d", success
);
3623 p2p_dbg(p2p
, "No pending GO Negotiation");
3628 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
3629 p2p_set_state(p2p
, P2P_IDLE
);
3632 } else if (dev
->go_neg_req_sent
) {
3633 /* Cancel the increment from p2p_connect_send() on failure */
3634 dev
->go_neg_req_sent
--;
3638 (dev
->info
.dev_capab
& P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
) &&
3639 !is_zero_ether_addr(dev
->member_in_go_dev
)) {
3640 p2p_dbg(p2p
, "Peer " MACSTR
" did not acknowledge request - try to use device discoverability through its GO",
3641 MAC2STR(dev
->info
.p2p_device_addr
));
3642 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3643 p2p_send_dev_disc_req(p2p
, dev
);
3648 * Use P2P find, if needed, to find the other device from its listen
3651 p2p_set_state(p2p
, P2P_CONNECT
);
3652 timeout
= success
? 500000 : 100000;
3653 if (!success
&& p2p
->go_neg_peer
&&
3654 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
)) {
3657 * Peer is expected to wait our response and we will skip the
3658 * listen phase. Add some randomness to the wait time here to
3659 * make it less likely to hit cases where we could end up in
3660 * sync with peer not listening.
3662 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
3664 timeout
+= r
% 100000;
3666 p2p_set_timeout(p2p
, 0, timeout
);
3670 static void p2p_go_neg_resp_cb(struct p2p_data
*p2p
, int success
)
3672 p2p_dbg(p2p
, "GO Negotiation Response TX callback: success=%d",
3674 if (!p2p
->go_neg_peer
&& p2p
->state
== P2P_PROVISIONING
) {
3675 p2p_dbg(p2p
, "Ignore TX callback event - GO Negotiation is not running anymore");
3678 p2p_set_state(p2p
, P2P_CONNECT
);
3679 p2p_set_timeout(p2p
, 0, 500000);
3683 static void p2p_go_neg_resp_failure_cb(struct p2p_data
*p2p
, int success
,
3686 p2p_dbg(p2p
, "GO Negotiation Response (failure) TX callback: success=%d", success
);
3687 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->status
!= P2P_SC_SUCCESS
) {
3688 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
->status
);
3693 struct p2p_device
*dev
;
3694 dev
= p2p_get_device(p2p
, addr
);
3696 dev
->status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
)
3697 dev
->flags
|= P2P_DEV_PEER_WAITING_RESPONSE
;
3700 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
3701 p2p_continue_find(p2p
);
3705 static void p2p_go_neg_conf_cb(struct p2p_data
*p2p
,
3706 enum p2p_send_action_result result
)
3708 struct p2p_device
*dev
;
3710 p2p_dbg(p2p
, "GO Negotiation Confirm TX callback: result=%d", result
);
3711 if (result
== P2P_SEND_ACTION_FAILED
) {
3712 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3713 p2p_go_neg_failed(p2p
, -1);
3717 dev
= p2p
->go_neg_peer
;
3719 if (result
== P2P_SEND_ACTION_NO_ACK
) {
3721 * Retry GO Negotiation Confirmation
3722 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3723 * ACK for confirmation.
3725 if (dev
&& dev
->go_neg_conf
&&
3726 dev
->go_neg_conf_sent
<= P2P_GO_NEG_CNF_MAX_RETRY_COUNT
) {
3727 p2p_dbg(p2p
, "GO Negotiation Confirm retry %d",
3728 dev
->go_neg_conf_sent
);
3729 p2p
->pending_action_state
= P2P_PENDING_GO_NEG_CONFIRM
;
3730 if (p2p_send_action(p2p
, dev
->go_neg_conf_freq
,
3731 dev
->info
.p2p_device_addr
,
3733 dev
->info
.p2p_device_addr
,
3734 wpabuf_head(dev
->go_neg_conf
),
3735 wpabuf_len(dev
->go_neg_conf
), 0) >=
3737 dev
->go_neg_conf_sent
++;
3740 p2p_dbg(p2p
, "Failed to re-send Action frame");
3743 * Continue with the assumption that the first attempt
3744 * went through and just the ACK frame was lost.
3749 * It looks like the TX status for GO Negotiation Confirm is
3750 * often showing failure even when the peer has actually
3751 * received the frame. Since the peer may change channels
3752 * immediately after having received the frame, we may not see
3753 * an Ack for retries, so just dropping a single frame may
3754 * trigger this. To allow the group formation to succeed if the
3755 * peer did indeed receive the frame, continue regardless of
3758 p2p_dbg(p2p
, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
3761 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3766 p2p_go_complete(p2p
, dev
);
3770 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
3771 const u8
*src
, const u8
*bssid
,
3772 enum p2p_send_action_result result
)
3774 enum p2p_pending_action_state state
;
3777 p2p_dbg(p2p
, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
3778 " src=" MACSTR
" bssid=" MACSTR
" result=%d p2p_state=%s)",
3779 p2p
->pending_action_state
, freq
, MAC2STR(dst
), MAC2STR(src
),
3780 MAC2STR(bssid
), result
, p2p_state_txt(p2p
->state
));
3781 success
= result
== P2P_SEND_ACTION_SUCCESS
;
3782 state
= p2p
->pending_action_state
;
3783 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3785 case P2P_NO_PENDING_ACTION
:
3786 if (p2p
->send_action_in_progress
) {
3787 p2p
->send_action_in_progress
= 0;
3788 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3790 p2p_check_after_scan_tx_continuation(p2p
);
3792 case P2P_PENDING_GO_NEG_REQUEST
:
3793 p2p_go_neg_req_cb(p2p
, success
);
3795 case P2P_PENDING_GO_NEG_RESPONSE
:
3796 p2p_go_neg_resp_cb(p2p
, success
);
3798 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE
:
3799 p2p_go_neg_resp_failure_cb(p2p
, success
, dst
);
3801 case P2P_PENDING_GO_NEG_CONFIRM
:
3802 p2p_go_neg_conf_cb(p2p
, result
);
3804 case P2P_PENDING_SD
:
3805 p2p_sd_cb(p2p
, success
);
3807 case P2P_PENDING_PD
:
3808 p2p_prov_disc_cb(p2p
, success
);
3810 case P2P_PENDING_PD_RESPONSE
:
3811 p2p_prov_disc_resp_cb(p2p
, success
);
3813 case P2P_PENDING_INVITATION_REQUEST
:
3814 p2p_invitation_req_cb(p2p
, success
);
3816 case P2P_PENDING_INVITATION_RESPONSE
:
3817 p2p_invitation_resp_cb(p2p
, success
);
3818 if (p2p
->inv_status
!= P2P_SC_SUCCESS
)
3819 p2p_check_after_scan_tx_continuation(p2p
);
3821 case P2P_PENDING_DEV_DISC_REQUEST
:
3822 p2p_dev_disc_req_cb(p2p
, success
);
3824 case P2P_PENDING_DEV_DISC_RESPONSE
:
3825 p2p_dev_disc_resp_cb(p2p
, success
);
3827 case P2P_PENDING_GO_DISC_REQ
:
3828 p2p_go_disc_req_cb(p2p
, success
);
3832 p2p
->after_scan_tx_in_progress
= 0;
3836 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
3837 unsigned int duration
)
3839 if (freq
== p2p
->pending_client_disc_freq
) {
3840 p2p_dbg(p2p
, "Client discoverability remain-awake completed");
3841 p2p
->pending_client_disc_freq
= 0;
3845 if (freq
!= p2p
->pending_listen_freq
) {
3846 p2p_dbg(p2p
, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
3847 freq
, duration
, p2p
->pending_listen_freq
);
3851 p2p_dbg(p2p
, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
3852 p2p
->pending_listen_sec
, p2p
->pending_listen_usec
,
3853 p2p
->pending_listen_freq
);
3855 p2p
->drv_in_listen
= freq
;
3856 if (p2p
->pending_listen_sec
|| p2p
->pending_listen_usec
) {
3858 * Add 20 msec extra wait to avoid race condition with driver
3859 * remain-on-channel end event, i.e., give driver more time to
3860 * complete the operation before our timeout expires.
3862 p2p_set_timeout(p2p
, p2p
->pending_listen_sec
,
3863 p2p
->pending_listen_usec
+ 20000);
3866 p2p
->pending_listen_freq
= 0;
3870 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
)
3872 p2p_dbg(p2p
, "Driver ended Listen state (freq=%u)", freq
);
3873 p2p
->drv_in_listen
= 0;
3875 return 0; /* Internal timeout will trigger the next step */
3877 if (p2p
->state
== P2P_CONNECT_LISTEN
&& p2p
->go_neg_peer
) {
3878 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3879 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3880 p2p_go_neg_failed(p2p
, -1);
3884 p2p_set_state(p2p
, P2P_CONNECT
);
3885 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3887 } else if (p2p
->state
== P2P_SEARCH
) {
3888 if (p2p
->p2p_scan_running
) {
3890 * Search is already in progress. This can happen if
3891 * an Action frame RX is reported immediately after
3892 * the end of a remain-on-channel operation and the
3893 * response frame to that is sent using an offchannel
3894 * operation while in p2p_find. Avoid an attempt to
3895 * restart a scan here.
3897 p2p_dbg(p2p
, "p2p_scan already in progress - do not try to start a new one");
3900 if (p2p
->pending_listen_freq
) {
3902 * Better wait a bit if the driver is unable to start
3903 * offchannel operation for some reason. p2p_search()
3904 * will be started from internal timeout.
3906 p2p_dbg(p2p
, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3907 p2p_set_timeout(p2p
, 0, 100000);
3910 if (p2p
->search_delay
) {
3911 p2p_dbg(p2p
, "Delay search operation by %u ms",
3913 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
3914 (p2p
->search_delay
% 1000) * 1000);
3925 static void p2p_timeout_connect(struct p2p_data
*p2p
)
3927 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3928 if (p2p
->go_neg_peer
&&
3929 (p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
3930 p2p_dbg(p2p
, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
3931 p2p_go_neg_failed(p2p
, -1);
3934 if (p2p
->go_neg_peer
&&
3935 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
) &&
3936 p2p
->go_neg_peer
->connect_reqs
< 120) {
3937 p2p_dbg(p2p
, "Peer expected to wait our response - skip listen");
3938 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3941 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->oob_go_neg_freq
> 0) {
3942 p2p_dbg(p2p
, "Skip connect-listen since GO Neg channel known (OOB)");
3943 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3944 p2p_set_timeout(p2p
, 0, 30000);
3947 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3948 p2p_listen_in_find(p2p
, 0);
3952 static void p2p_timeout_connect_listen(struct p2p_data
*p2p
)
3954 if (p2p
->go_neg_peer
) {
3955 if (p2p
->drv_in_listen
) {
3956 p2p_dbg(p2p
, "Driver is still in Listen state; wait for it to complete");
3960 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3961 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3962 p2p_go_neg_failed(p2p
, -1);
3966 p2p_set_state(p2p
, P2P_CONNECT
);
3967 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3969 p2p_set_state(p2p
, P2P_IDLE
);
3973 static void p2p_timeout_wait_peer_connect(struct p2p_data
*p2p
)
3975 p2p_set_state(p2p
, P2P_WAIT_PEER_IDLE
);
3977 if (p2p
->cfg
->is_concurrent_session_active
&&
3978 p2p
->cfg
->is_concurrent_session_active(p2p
->cfg
->cb_ctx
))
3979 p2p_set_timeout(p2p
, 0, 500000);
3981 p2p_set_timeout(p2p
, 0, 200000);
3985 static void p2p_timeout_wait_peer_idle(struct p2p_data
*p2p
)
3987 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3990 p2p_dbg(p2p
, "Unknown GO Neg peer - stop GO Neg wait");
3994 p2p_dbg(p2p
, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
3995 p2p_set_state(p2p
, P2P_WAIT_PEER_CONNECT
);
3996 p2p_listen_in_find(p2p
, 0);
4000 static void p2p_timeout_sd_during_find(struct p2p_data
*p2p
)
4002 p2p_dbg(p2p
, "Service Discovery Query timeout");
4004 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
4005 p2p
->sd_peer
= NULL
;
4007 p2p_continue_find(p2p
);
4011 static void p2p_timeout_prov_disc_during_find(struct p2p_data
*p2p
)
4013 p2p_dbg(p2p
, "Provision Discovery Request timeout");
4014 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
4015 p2p_continue_find(p2p
);
4019 static void p2p_timeout_prov_disc_req(struct p2p_data
*p2p
)
4024 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4027 * For user initiated PD requests that we have not gotten any responses
4028 * for while in IDLE state, we retry them a couple of times before
4031 if (!p2p
->user_initiated_pd
)
4034 p2p_dbg(p2p
, "User initiated Provision Discovery Request timeout");
4036 if (p2p
->pd_retries
) {
4040 struct p2p_device
*dev
;
4043 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
4044 if (os_memcmp(p2p
->pending_pd_devaddr
,
4045 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
4047 if (dev
->req_config_methods
&&
4048 (dev
->flags
& P2P_DEV_PD_FOR_JOIN
))
4052 if (p2p
->p2ps_prov
) {
4053 adv_id
= p2p
->p2ps_prov
->adv_id
;
4054 adv_mac
= p2p
->p2ps_prov
->adv_mac
;
4057 if (p2p
->cfg
->prov_disc_fail
)
4058 p2p
->cfg
->prov_disc_fail(p2p
->cfg
->cb_ctx
,
4059 p2p
->pending_pd_devaddr
,
4061 P2P_PROV_DISC_TIMEOUT_JOIN
:
4062 P2P_PROV_DISC_TIMEOUT
,
4063 adv_id
, adv_mac
, NULL
);
4064 p2p_reset_pending_pd(p2p
);
4069 static void p2p_timeout_invite(struct p2p_data
*p2p
)
4071 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
4072 p2p_set_state(p2p
, P2P_INVITE_LISTEN
);
4073 if (p2p
->inv_role
== P2P_INVITE_ROLE_ACTIVE_GO
) {
4075 * Better remain on operating channel instead of listen channel
4076 * when running a group.
4078 p2p_dbg(p2p
, "Inviting in active GO role - wait on operating channel");
4079 p2p_set_timeout(p2p
, 0, 100000);
4082 p2p_listen_in_find(p2p
, 0);
4086 static void p2p_timeout_invite_listen(struct p2p_data
*p2p
)
4088 if (p2p
->invite_peer
&& p2p
->invite_peer
->invitation_reqs
< 100) {
4089 p2p_set_state(p2p
, P2P_INVITE
);
4090 p2p_invite_send(p2p
, p2p
->invite_peer
,
4091 p2p
->invite_go_dev_addr
, p2p
->invite_dev_pw_id
);
4093 if (p2p
->invite_peer
) {
4094 p2p_dbg(p2p
, "Invitation Request retry limit reached");
4095 if (p2p
->cfg
->invitation_result
)
4096 p2p
->cfg
->invitation_result(
4097 p2p
->cfg
->cb_ctx
, -1, NULL
, NULL
,
4098 p2p
->invite_peer
->info
.p2p_device_addr
,
4101 p2p_set_state(p2p
, P2P_IDLE
);
4106 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
)
4108 struct p2p_data
*p2p
= eloop_ctx
;
4110 p2p_dbg(p2p
, "Timeout (state=%s)", p2p_state_txt(p2p
->state
));
4113 if (p2p
->drv_in_listen
) {
4114 p2p_dbg(p2p
, "Driver is still in listen state - stop it");
4115 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
4118 switch (p2p
->state
) {
4120 /* Check if we timed out waiting for PD req */
4121 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4122 p2p_timeout_prov_disc_req(p2p
);
4125 /* Check if we timed out waiting for PD req */
4126 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4127 p2p_timeout_prov_disc_req(p2p
);
4128 if (p2p
->search_delay
&& !p2p
->in_search_delay
) {
4129 p2p_dbg(p2p
, "Delay search operation by %u ms",
4131 p2p
->in_search_delay
= 1;
4132 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
4133 (p2p
->search_delay
% 1000) * 1000);
4136 p2p
->in_search_delay
= 0;
4140 p2p_timeout_connect(p2p
);
4142 case P2P_CONNECT_LISTEN
:
4143 p2p_timeout_connect_listen(p2p
);
4147 case P2P_LISTEN_ONLY
:
4148 /* Check if we timed out waiting for PD req */
4149 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4150 p2p_timeout_prov_disc_req(p2p
);
4152 if (p2p
->ext_listen_only
) {
4153 p2p_dbg(p2p
, "Extended Listen Timing - Listen State completed");
4154 p2p
->ext_listen_only
= 0;
4155 p2p_set_state(p2p
, P2P_IDLE
);
4158 case P2P_WAIT_PEER_CONNECT
:
4159 p2p_timeout_wait_peer_connect(p2p
);
4161 case P2P_WAIT_PEER_IDLE
:
4162 p2p_timeout_wait_peer_idle(p2p
);
4164 case P2P_SD_DURING_FIND
:
4165 p2p_timeout_sd_during_find(p2p
);
4167 case P2P_PROVISIONING
:
4169 case P2P_PD_DURING_FIND
:
4170 p2p_timeout_prov_disc_during_find(p2p
);
4173 p2p_timeout_invite(p2p
);
4175 case P2P_INVITE_LISTEN
:
4176 p2p_timeout_invite_listen(p2p
);
4182 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
)
4184 struct p2p_device
*dev
;
4186 dev
= p2p_get_device(p2p
, peer_addr
);
4187 p2p_dbg(p2p
, "Local request to reject connection attempts by peer "
4188 MACSTR
, MAC2STR(peer_addr
));
4190 p2p_dbg(p2p
, "Peer " MACSTR
" unknown", MAC2STR(peer_addr
));
4193 dev
->status
= P2P_SC_FAIL_REJECTED_BY_USER
;
4194 dev
->flags
|= P2P_DEV_USER_REJECTED
;
4199 const char * p2p_wps_method_text(enum p2p_wps_method method
)
4204 case WPS_PIN_DISPLAY
:
4206 case WPS_PIN_KEYPAD
:
4220 static const char * p2p_go_state_text(enum p2p_go_state go_state
)
4235 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
4236 const u8
*addr
, int next
)
4238 struct p2p_device
*dev
;
4241 dev
= p2p_get_device(p2p
, addr
);
4243 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
4246 dev
= dl_list_first(&dev
->list
, struct p2p_device
, list
);
4247 if (&dev
->list
== &p2p
->devices
)
4258 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
4259 char *buf
, size_t buflen
)
4261 struct p2p_device
*dev
;
4264 struct os_reltime now
;
4269 dev
= (struct p2p_device
*) (((u8
*) info
) -
4270 offsetof(struct p2p_device
, info
));
4275 os_get_reltime(&now
);
4276 res
= os_snprintf(pos
, end
- pos
,
4280 "interface_addr=" MACSTR
"\n"
4281 "member_in_go_dev=" MACSTR
"\n"
4282 "member_in_go_iface=" MACSTR
"\n"
4283 "go_neg_req_sent=%d\n"
4286 "intended_addr=" MACSTR
"\n"
4289 "req_config_methods=0x%x\n"
4290 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
4292 "invitation_reqs=%u\n",
4293 (int) (now
.sec
- dev
->last_seen
.sec
),
4295 p2p_wps_method_text(dev
->wps_method
),
4296 MAC2STR(dev
->interface_addr
),
4297 MAC2STR(dev
->member_in_go_dev
),
4298 MAC2STR(dev
->member_in_go_iface
),
4299 dev
->go_neg_req_sent
,
4300 p2p_go_state_text(dev
->go_state
),
4302 MAC2STR(dev
->intended_addr
),
4303 dev
->country
[0] ? dev
->country
[0] : '_',
4304 dev
->country
[1] ? dev
->country
[1] : '_',
4306 dev
->req_config_methods
,
4307 dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
?
4308 "[PROBE_REQ_ONLY]" : "",
4309 dev
->flags
& P2P_DEV_REPORTED
? "[REPORTED]" : "",
4310 dev
->flags
& P2P_DEV_NOT_YET_READY
?
4311 "[NOT_YET_READY]" : "",
4312 dev
->flags
& P2P_DEV_PD_PEER_DISPLAY
?
4313 "[PD_PEER_DISPLAY]" : "",
4314 dev
->flags
& P2P_DEV_PD_PEER_KEYPAD
?
4315 "[PD_PEER_KEYPAD]" : "",
4316 dev
->flags
& P2P_DEV_PD_PEER_P2PS
?
4317 "[PD_PEER_P2PS]" : "",
4318 dev
->flags
& P2P_DEV_USER_REJECTED
?
4319 "[USER_REJECTED]" : "",
4320 dev
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
?
4321 "[PEER_WAITING_RESPONSE]" : "",
4322 dev
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
?
4323 "[PREFER_PERSISTENT_GROUP]" : "",
4324 dev
->flags
& P2P_DEV_WAIT_GO_NEG_RESPONSE
?
4325 "[WAIT_GO_NEG_RESPONSE]" : "",
4326 dev
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
?
4327 "[WAIT_GO_NEG_CONFIRM]" : "",
4328 dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
?
4329 "[GROUP_CLIENT_ONLY]" : "",
4330 dev
->flags
& P2P_DEV_FORCE_FREQ
?
4331 "[FORCE_FREQ]" : "",
4332 dev
->flags
& P2P_DEV_PD_FOR_JOIN
?
4333 "[PD_FOR_JOIN]" : "",
4334 dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
?
4335 "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
4337 dev
->invitation_reqs
);
4338 if (os_snprintf_error(end
- pos
, res
))
4342 if (dev
->ext_listen_period
) {
4343 res
= os_snprintf(pos
, end
- pos
,
4344 "ext_listen_period=%u\n"
4345 "ext_listen_interval=%u\n",
4346 dev
->ext_listen_period
,
4347 dev
->ext_listen_interval
);
4348 if (os_snprintf_error(end
- pos
, res
))
4353 if (dev
->oper_ssid_len
) {
4354 res
= os_snprintf(pos
, end
- pos
,
4356 wpa_ssid_txt(dev
->oper_ssid
,
4357 dev
->oper_ssid_len
));
4358 if (os_snprintf_error(end
- pos
, res
))
4363 #ifdef CONFIG_WIFI_DISPLAY
4364 if (dev
->info
.wfd_subelems
) {
4365 res
= os_snprintf(pos
, end
- pos
, "wfd_subelems=");
4366 if (os_snprintf_error(end
- pos
, res
))
4370 pos
+= wpa_snprintf_hex(pos
, end
- pos
,
4371 wpabuf_head(dev
->info
.wfd_subelems
),
4372 wpabuf_len(dev
->info
.wfd_subelems
));
4374 res
= os_snprintf(pos
, end
- pos
, "\n");
4375 if (os_snprintf_error(end
- pos
, res
))
4379 #endif /* CONFIG_WIFI_DISPLAY */
4385 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
)
4387 return p2p_get_device(p2p
, addr
) != NULL
;
4391 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
)
4394 p2p_dbg(p2p
, "Client discoverability enabled");
4395 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4397 p2p_dbg(p2p
, "Client discoverability disabled");
4398 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4403 static struct wpabuf
* p2p_build_presence_req(u32 duration1
, u32 interval1
,
4404 u32 duration2
, u32 interval2
)
4407 struct p2p_noa_desc desc1
, desc2
, *ptr1
= NULL
, *ptr2
= NULL
;
4410 req
= wpabuf_alloc(100);
4414 if (duration1
|| interval1
) {
4415 os_memset(&desc1
, 0, sizeof(desc1
));
4416 desc1
.count_type
= 1;
4417 desc1
.duration
= duration1
;
4418 desc1
.interval
= interval1
;
4421 if (duration2
|| interval2
) {
4422 os_memset(&desc2
, 0, sizeof(desc2
));
4423 desc2
.count_type
= 2;
4424 desc2
.duration
= duration2
;
4425 desc2
.interval
= interval2
;
4430 p2p_buf_add_action_hdr(req
, P2P_PRESENCE_REQ
, 1);
4431 len
= p2p_buf_add_ie_hdr(req
);
4432 p2p_buf_add_noa(req
, 0, 0, 0, ptr1
, ptr2
);
4433 p2p_buf_update_ie_hdr(req
, len
);
4439 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
4440 const u8
*own_interface_addr
, unsigned int freq
,
4441 u32 duration1
, u32 interval1
, u32 duration2
,
4446 p2p_dbg(p2p
, "Send Presence Request to GO " MACSTR
4447 " (own interface " MACSTR
") freq=%u dur1=%u int1=%u "
4449 MAC2STR(go_interface_addr
), MAC2STR(own_interface_addr
),
4450 freq
, duration1
, interval1
, duration2
, interval2
);
4452 req
= p2p_build_presence_req(duration1
, interval1
, duration2
,
4457 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4458 if (p2p_send_action(p2p
, freq
, go_interface_addr
, own_interface_addr
,
4460 wpabuf_head(req
), wpabuf_len(req
), 200) < 0) {
4461 p2p_dbg(p2p
, "Failed to send Action frame");
4469 static struct wpabuf
* p2p_build_presence_resp(u8 status
, const u8
*noa
,
4470 size_t noa_len
, u8 dialog_token
)
4472 struct wpabuf
*resp
;
4475 resp
= wpabuf_alloc(100 + noa_len
);
4479 p2p_buf_add_action_hdr(resp
, P2P_PRESENCE_RESP
, dialog_token
);
4480 len
= p2p_buf_add_ie_hdr(resp
);
4481 p2p_buf_add_status(resp
, status
);
4483 wpabuf_put_u8(resp
, P2P_ATTR_NOTICE_OF_ABSENCE
);
4484 wpabuf_put_le16(resp
, noa_len
);
4485 wpabuf_put_data(resp
, noa
, noa_len
);
4487 p2p_buf_add_noa(resp
, 0, 0, 0, NULL
, NULL
);
4488 p2p_buf_update_ie_hdr(resp
, len
);
4494 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
4495 const u8
*sa
, const u8
*data
, size_t len
,
4498 struct p2p_message msg
;
4500 struct wpabuf
*resp
;
4502 struct p2p_group
*group
= NULL
;
4507 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Request");
4509 for (g
= 0; g
< p2p
->num_groups
; g
++) {
4510 if (os_memcmp(da
, p2p_group_get_interface_addr(p2p
->groups
[g
]),
4512 group
= p2p
->groups
[g
];
4516 if (group
== NULL
) {
4517 p2p_dbg(p2p
, "Ignore P2P Presence Request for unknown group "
4518 MACSTR
, MAC2STR(da
));
4522 if (p2p_parse(data
, len
, &msg
) < 0) {
4523 p2p_dbg(p2p
, "Failed to parse P2P Presence Request");
4524 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4529 if (msg
.noa
== NULL
) {
4530 p2p_dbg(p2p
, "No NoA attribute in P2P Presence Request");
4531 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4535 status
= p2p_group_presence_req(group
, sa
, msg
.noa
, msg
.noa_len
);
4538 if (p2p
->cfg
->get_noa
)
4539 noa_len
= p2p
->cfg
->get_noa(p2p
->cfg
->cb_ctx
, da
, noa
,
4543 resp
= p2p_build_presence_resp(status
, noa_len
> 0 ? noa
: NULL
,
4544 noa_len
> 0 ? noa_len
: 0,
4547 p2p_parse_free(&msg
);
4551 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4552 if (p2p_send_action(p2p
, rx_freq
, sa
, da
, da
,
4553 wpabuf_head(resp
), wpabuf_len(resp
), 200) < 0) {
4554 p2p_dbg(p2p
, "Failed to send Action frame");
4560 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
4561 const u8
*sa
, const u8
*data
, size_t len
)
4563 struct p2p_message msg
;
4565 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Response");
4567 if (p2p_parse(data
, len
, &msg
) < 0) {
4568 p2p_dbg(p2p
, "Failed to parse P2P Presence Response");
4572 if (msg
.status
== NULL
|| msg
.noa
== NULL
) {
4573 p2p_dbg(p2p
, "No Status or NoA attribute in P2P Presence Response");
4574 p2p_parse_free(&msg
);
4578 if (p2p
->cfg
->presence_resp
) {
4579 p2p
->cfg
->presence_resp(p2p
->cfg
->cb_ctx
, sa
, *msg
.status
,
4580 msg
.noa
, msg
.noa_len
);
4584 p2p_dbg(p2p
, "P2P Presence Request was rejected: status %u",
4586 p2p_parse_free(&msg
);
4590 p2p_dbg(p2p
, "P2P Presence Request was accepted");
4591 wpa_hexdump(MSG_DEBUG
, "P2P: P2P Presence Response - NoA",
4592 msg
.noa
, msg
.noa_len
);
4593 /* TODO: process NoA */
4594 p2p_parse_free(&msg
);
4598 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
4600 struct p2p_data
*p2p
= eloop_ctx
;
4602 if (p2p
->ext_listen_interval
) {
4603 /* Schedule next extended listen timeout */
4604 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4605 p2p
->ext_listen_interval_usec
,
4606 p2p_ext_listen_timeout
, p2p
, NULL
);
4609 if ((p2p
->cfg
->is_p2p_in_progress
&&
4610 p2p
->cfg
->is_p2p_in_progress(p2p
->cfg
->cb_ctx
)) ||
4611 (p2p
->pending_action_state
== P2P_PENDING_PD
&&
4612 p2p
->pd_retries
> 0)) {
4613 p2p_dbg(p2p
, "Operation in progress - skip Extended Listen timeout (%s)",
4614 p2p_state_txt(p2p
->state
));
4618 if (p2p
->state
== P2P_LISTEN_ONLY
&& p2p
->ext_listen_only
) {
4620 * This should not really happen, but it looks like the Listen
4621 * command may fail is something else (e.g., a scan) was
4622 * running at an inconvenient time. As a workaround, allow new
4623 * Extended Listen operation to be started.
4625 p2p_dbg(p2p
, "Previous Extended Listen operation had not been completed - try again");
4626 p2p
->ext_listen_only
= 0;
4627 p2p_set_state(p2p
, P2P_IDLE
);
4630 if (p2p
->state
!= P2P_IDLE
) {
4631 p2p_dbg(p2p
, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p
->state
));
4635 p2p_dbg(p2p
, "Extended Listen timeout");
4636 p2p
->ext_listen_only
= 1;
4637 if (p2p_listen(p2p
, p2p
->ext_listen_period
) < 0) {
4638 p2p_dbg(p2p
, "Failed to start Listen state for Extended Listen Timing");
4639 p2p
->ext_listen_only
= 0;
4644 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
4645 unsigned int interval
)
4647 if (period
> 65535 || interval
> 65535 || period
> interval
||
4648 (period
== 0 && interval
> 0) || (period
> 0 && interval
== 0)) {
4649 p2p_dbg(p2p
, "Invalid Extended Listen Timing request: period=%u interval=%u",
4654 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
4656 if (interval
== 0) {
4657 p2p_dbg(p2p
, "Disabling Extended Listen Timing");
4658 p2p
->ext_listen_period
= 0;
4659 p2p
->ext_listen_interval
= 0;
4663 p2p_dbg(p2p
, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4665 p2p
->ext_listen_period
= period
;
4666 p2p
->ext_listen_interval
= interval
;
4667 p2p
->ext_listen_interval_sec
= interval
/ 1000;
4668 p2p
->ext_listen_interval_usec
= (interval
% 1000) * 1000;
4670 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4671 p2p
->ext_listen_interval_usec
,
4672 p2p_ext_listen_timeout
, p2p
, NULL
);
4678 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4679 const u8
*ie
, size_t ie_len
)
4681 struct p2p_message msg
;
4683 if (bssid
== NULL
|| ie
== NULL
)
4686 os_memset(&msg
, 0, sizeof(msg
));
4687 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4689 if (msg
.minor_reason_code
== NULL
) {
4690 p2p_parse_free(&msg
);
4694 p2p_dbg(p2p
, "Deauthentication notification BSSID " MACSTR
4695 " reason_code=%u minor_reason_code=%u",
4696 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4698 p2p_parse_free(&msg
);
4702 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4703 const u8
*ie
, size_t ie_len
)
4705 struct p2p_message msg
;
4707 if (bssid
== NULL
|| ie
== NULL
)
4710 os_memset(&msg
, 0, sizeof(msg
));
4711 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4713 if (msg
.minor_reason_code
== NULL
) {
4714 p2p_parse_free(&msg
);
4718 p2p_dbg(p2p
, "Disassociation notification BSSID " MACSTR
4719 " reason_code=%u minor_reason_code=%u",
4720 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4722 p2p_parse_free(&msg
);
4726 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
)
4729 p2p_dbg(p2p
, "Managed P2P Device operations enabled");
4730 p2p
->dev_capab
|= P2P_DEV_CAPAB_INFRA_MANAGED
;
4732 p2p_dbg(p2p
, "Managed P2P Device operations disabled");
4733 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_INFRA_MANAGED
;
4738 int p2p_config_get_random_social(struct p2p_config
*p2p
, u8
*op_class
,
4741 return p2p_channel_random_social(&p2p
->channels
, op_class
, op_channel
);
4745 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
,
4748 if (p2p_channel_to_freq(reg_class
, channel
) < 0)
4752 * Listen channel was set in configuration or set by control interface;
4753 * cannot override it.
4755 if (p2p
->cfg
->channel_forced
&& forced
== 0) {
4757 "Listen channel was previously configured - do not override based on optimization");
4761 p2p_dbg(p2p
, "Set Listen channel: reg_class %u channel %u",
4762 reg_class
, channel
);
4764 if (p2p
->state
== P2P_IDLE
) {
4765 p2p
->cfg
->reg_class
= reg_class
;
4766 p2p
->cfg
->channel
= channel
;
4767 p2p
->cfg
->channel_forced
= forced
;
4769 p2p_dbg(p2p
, "Defer setting listen channel");
4770 p2p
->pending_reg_class
= reg_class
;
4771 p2p
->pending_channel
= channel
;
4772 p2p
->pending_channel_forced
= forced
;
4779 u8
p2p_get_listen_channel(struct p2p_data
*p2p
)
4781 return p2p
->cfg
->channel
;
4785 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
)
4787 p2p_dbg(p2p
, "New SSID postfix: %s", wpa_ssid_txt(postfix
, len
));
4788 if (postfix
== NULL
) {
4789 p2p
->cfg
->ssid_postfix_len
= 0;
4792 if (len
> sizeof(p2p
->cfg
->ssid_postfix
))
4794 os_memcpy(p2p
->cfg
->ssid_postfix
, postfix
, len
);
4795 p2p
->cfg
->ssid_postfix_len
= len
;
4800 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
4803 if (p2p_channel_to_freq(op_reg_class
, op_channel
) < 0)
4806 p2p_dbg(p2p
, "Set Operating channel: reg_class %u channel %u",
4807 op_reg_class
, op_channel
);
4808 p2p
->cfg
->op_reg_class
= op_reg_class
;
4809 p2p
->cfg
->op_channel
= op_channel
;
4810 p2p
->cfg
->cfg_op_channel
= cfg_op_channel
;
4815 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
4816 const struct p2p_channel
*pref_chan
)
4818 struct p2p_channel
*n
;
4821 n
= os_malloc(num_pref_chan
* sizeof(struct p2p_channel
));
4824 os_memcpy(n
, pref_chan
,
4825 num_pref_chan
* sizeof(struct p2p_channel
));
4829 os_free(p2p
->cfg
->pref_chan
);
4830 p2p
->cfg
->pref_chan
= n
;
4831 p2p
->cfg
->num_pref_chan
= num_pref_chan
;
4837 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
4838 const struct wpa_freq_range_list
*list
)
4840 struct wpa_freq_range
*tmp
;
4842 if (list
== NULL
|| list
->num
== 0) {
4843 os_free(p2p
->no_go_freq
.range
);
4844 p2p
->no_go_freq
.range
= NULL
;
4845 p2p
->no_go_freq
.num
= 0;
4849 tmp
= os_calloc(list
->num
, sizeof(struct wpa_freq_range
));
4852 os_memcpy(tmp
, list
->range
, list
->num
* sizeof(struct wpa_freq_range
));
4853 os_free(p2p
->no_go_freq
.range
);
4854 p2p
->no_go_freq
.range
= tmp
;
4855 p2p
->no_go_freq
.num
= list
->num
;
4856 p2p_dbg(p2p
, "Updated no GO chan list");
4862 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
4865 struct p2p_device
*dev
= p2p_get_device(p2p
, dev_addr
);
4866 if (dev
== NULL
|| is_zero_ether_addr(dev
->interface_addr
))
4868 os_memcpy(iface_addr
, dev
->interface_addr
, ETH_ALEN
);
4873 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
4876 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4879 os_memcpy(dev_addr
, dev
->info
.p2p_device_addr
, ETH_ALEN
);
4884 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
)
4886 os_memcpy(p2p
->peer_filter
, addr
, ETH_ALEN
);
4887 if (is_zero_ether_addr(p2p
->peer_filter
))
4888 p2p_dbg(p2p
, "Disable peer filter");
4890 p2p_dbg(p2p
, "Enable peer filter for " MACSTR
,
4891 MAC2STR(p2p
->peer_filter
));
4895 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
)
4897 p2p_dbg(p2p
, "Cross connection %s", enabled
? "enabled" : "disabled");
4898 if (p2p
->cross_connect
== enabled
)
4900 p2p
->cross_connect
= enabled
;
4901 /* TODO: may need to tear down any action group where we are GO(?) */
4905 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
)
4907 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4910 if (dev
->oper_freq
<= 0)
4912 return dev
->oper_freq
;
4916 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
)
4918 p2p_dbg(p2p
, "Intra BSS distribution %s",
4919 enabled
? "enabled" : "disabled");
4920 p2p
->cfg
->p2p_intra_bss
= enabled
;
4924 void p2p_update_channel_list(struct p2p_data
*p2p
,
4925 const struct p2p_channels
*chan
,
4926 const struct p2p_channels
*cli_chan
)
4928 p2p_dbg(p2p
, "Update channel list");
4929 os_memcpy(&p2p
->cfg
->channels
, chan
, sizeof(struct p2p_channels
));
4930 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
4931 os_memcpy(&p2p
->cfg
->cli_channels
, cli_chan
,
4932 sizeof(struct p2p_channels
));
4933 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
4937 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
4938 const u8
*src
, const u8
*bssid
, const u8
*buf
,
4939 size_t len
, unsigned int wait_time
)
4941 if (p2p
->p2p_scan_running
) {
4942 p2p_dbg(p2p
, "Delay Action frame TX until p2p_scan completes");
4943 if (p2p
->after_scan_tx
) {
4944 p2p_dbg(p2p
, "Dropped previous pending Action frame TX");
4945 os_free(p2p
->after_scan_tx
);
4947 p2p
->after_scan_tx
= os_malloc(sizeof(*p2p
->after_scan_tx
) +
4949 if (p2p
->after_scan_tx
== NULL
)
4951 p2p
->after_scan_tx
->freq
= freq
;
4952 os_memcpy(p2p
->after_scan_tx
->dst
, dst
, ETH_ALEN
);
4953 os_memcpy(p2p
->after_scan_tx
->src
, src
, ETH_ALEN
);
4954 os_memcpy(p2p
->after_scan_tx
->bssid
, bssid
, ETH_ALEN
);
4955 p2p
->after_scan_tx
->len
= len
;
4956 p2p
->after_scan_tx
->wait_time
= wait_time
;
4957 os_memcpy(p2p
->after_scan_tx
+ 1, buf
, len
);
4961 return p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
, freq
, dst
, src
, bssid
,
4962 buf
, len
, wait_time
);
4966 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
4969 p2p_dbg(p2p
, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4970 freq_24
, freq_5
, freq_overall
);
4971 p2p
->best_freq_24
= freq_24
;
4972 p2p
->best_freq_5
= freq_5
;
4973 p2p
->best_freq_overall
= freq_overall
;
4977 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
)
4979 p2p_dbg(p2p
, "Own frequency preference: %d MHz", freq
);
4980 p2p
->own_freq_preference
= freq
;
4984 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
)
4986 if (p2p
== NULL
|| p2p
->go_neg_peer
== NULL
)
4988 return p2p
->go_neg_peer
->info
.p2p_device_addr
;
4992 const struct p2p_peer_info
*
4993 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
)
4995 struct p2p_device
*dev
;
4998 dev
= p2p_get_device(p2p
, addr
);
5003 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)
5009 dev
= dl_list_first(&dev
->list
,
5012 if (!dev
|| &dev
->list
== &p2p
->devices
)
5014 } while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
);
5017 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
5020 while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
5021 dev
= dl_list_first(&dev
->list
,
5024 if (!dev
|| &dev
->list
== &p2p
->devices
)
5033 int p2p_in_progress(struct p2p_data
*p2p
)
5037 if (p2p
->state
== P2P_SEARCH
)
5039 return p2p
->state
!= P2P_IDLE
&& p2p
->state
!= P2P_PROVISIONING
;
5043 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
5047 p2p
->go_timeout
= go_timeout
;
5048 p2p
->client_timeout
= client_timeout
;
5053 #ifdef CONFIG_WIFI_DISPLAY
5055 static void p2p_update_wfd_ie_groups(struct p2p_data
*p2p
)
5058 struct p2p_group
*group
;
5060 for (g
= 0; g
< p2p
->num_groups
; g
++) {
5061 group
= p2p
->groups
[g
];
5062 p2p_group_force_beacon_update_ies(group
);
5067 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5069 wpabuf_free(p2p
->wfd_ie_beacon
);
5070 p2p
->wfd_ie_beacon
= ie
;
5071 p2p_update_wfd_ie_groups(p2p
);
5076 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5078 wpabuf_free(p2p
->wfd_ie_probe_req
);
5079 p2p
->wfd_ie_probe_req
= ie
;
5084 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5086 wpabuf_free(p2p
->wfd_ie_probe_resp
);
5087 p2p
->wfd_ie_probe_resp
= ie
;
5088 p2p_update_wfd_ie_groups(p2p
);
5093 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5095 wpabuf_free(p2p
->wfd_ie_assoc_req
);
5096 p2p
->wfd_ie_assoc_req
= ie
;
5101 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5103 wpabuf_free(p2p
->wfd_ie_invitation
);
5104 p2p
->wfd_ie_invitation
= ie
;
5109 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5111 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
5112 p2p
->wfd_ie_prov_disc_req
= ie
;
5117 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5119 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
5120 p2p
->wfd_ie_prov_disc_resp
= ie
;
5125 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5127 wpabuf_free(p2p
->wfd_ie_go_neg
);
5128 p2p
->wfd_ie_go_neg
= ie
;
5133 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5135 wpabuf_free(p2p
->wfd_dev_info
);
5137 p2p
->wfd_dev_info
= wpabuf_dup(elem
);
5138 if (p2p
->wfd_dev_info
== NULL
)
5141 p2p
->wfd_dev_info
= NULL
;
5147 int p2p_set_wfd_r2_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5149 wpabuf_free(p2p
->wfd_r2_dev_info
);
5151 p2p
->wfd_r2_dev_info
= wpabuf_dup(elem
);
5152 if (p2p
->wfd_r2_dev_info
== NULL
)
5155 p2p
->wfd_r2_dev_info
= NULL
;
5161 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5163 wpabuf_free(p2p
->wfd_assoc_bssid
);
5165 p2p
->wfd_assoc_bssid
= wpabuf_dup(elem
);
5166 if (p2p
->wfd_assoc_bssid
== NULL
)
5169 p2p
->wfd_assoc_bssid
= NULL
;
5175 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
5176 const struct wpabuf
*elem
)
5178 wpabuf_free(p2p
->wfd_coupled_sink_info
);
5180 p2p
->wfd_coupled_sink_info
= wpabuf_dup(elem
);
5181 if (p2p
->wfd_coupled_sink_info
== NULL
)
5184 p2p
->wfd_coupled_sink_info
= NULL
;
5189 #endif /* CONFIG_WIFI_DISPLAY */
5192 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
5195 if (min_disc_int
> max_disc_int
|| min_disc_int
< 0 || max_disc_int
< 0)
5198 p2p
->min_disc_int
= min_disc_int
;
5199 p2p
->max_disc_int
= max_disc_int
;
5200 p2p
->max_disc_tu
= max_disc_tu
;
5201 p2p_dbg(p2p
, "Set discoverable interval: min=%d max=%d max_tu=%d",
5202 min_disc_int
, max_disc_int
, max_disc_tu
);
5208 void p2p_dbg(struct p2p_data
*p2p
, const char *fmt
, ...)
5213 if (!p2p
->cfg
->debug_print
)
5217 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5218 buf
[sizeof(buf
) - 1] = '\0';
5220 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_DEBUG
, buf
);
5224 void p2p_info(struct p2p_data
*p2p
, const char *fmt
, ...)
5229 if (!p2p
->cfg
->debug_print
)
5233 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5234 buf
[sizeof(buf
) - 1] = '\0';
5236 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_INFO
, buf
);
5240 void p2p_err(struct p2p_data
*p2p
, const char *fmt
, ...)
5245 if (!p2p
->cfg
->debug_print
)
5249 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5250 buf
[sizeof(buf
) - 1] = '\0';
5252 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_ERROR
, buf
);
5256 void p2p_loop_on_known_peers(struct p2p_data
*p2p
,
5257 void (*peer_callback
)(struct p2p_peer_info
*peer
,
5261 struct p2p_device
*dev
, *n
;
5263 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
5264 peer_callback(&dev
->info
, user_data
);
5269 #ifdef CONFIG_WPS_NFC
5271 static struct wpabuf
* p2p_build_nfc_handover(struct p2p_data
*p2p
,
5273 const u8
*go_dev_addr
,
5274 const u8
*ssid
, size_t ssid_len
)
5277 u8 op_class
, channel
;
5278 enum p2p_role_indication role
= P2P_DEVICE_NOT_IN_GROUP
;
5280 buf
= wpabuf_alloc(1000);
5284 op_class
= p2p
->cfg
->reg_class
;
5285 channel
= p2p
->cfg
->channel
;
5287 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
5288 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
5289 p2p_buf_add_device_info(buf
, p2p
, NULL
);
5291 if (p2p
->num_groups
> 0) {
5292 int freq
= p2p_group_get_freq(p2p
->groups
[0]);
5293 role
= P2P_GO_IN_A_GROUP
;
5294 if (p2p_freq_to_channel(freq
, &op_class
, &channel
) < 0) {
5296 "Unknown GO operating frequency %d MHz for NFC handover",
5301 } else if (client_freq
> 0) {
5302 role
= P2P_CLIENT_IN_A_GROUP
;
5303 if (p2p_freq_to_channel(client_freq
, &op_class
, &channel
) < 0) {
5305 "Unknown client operating frequency %d MHz for NFC handover",
5312 p2p_buf_add_oob_go_neg_channel(buf
, p2p
->cfg
->country
, op_class
,
5315 if (p2p
->num_groups
> 0) {
5316 /* Limit number of clients to avoid very long message */
5317 p2p_buf_add_group_info(p2p
->groups
[0], buf
, 5);
5318 p2p_group_buf_add_id(p2p
->groups
[0], buf
);
5319 } else if (client_freq
> 0 &&
5320 go_dev_addr
&& !is_zero_ether_addr(go_dev_addr
) &&
5321 ssid
&& ssid_len
> 0) {
5323 * Add the optional P2P Group ID to indicate in which group this
5324 * device is a P2P Client.
5326 p2p_buf_add_group_id(buf
, go_dev_addr
, ssid
, ssid_len
);
5333 struct wpabuf
* p2p_build_nfc_handover_req(struct p2p_data
*p2p
,
5335 const u8
*go_dev_addr
,
5336 const u8
*ssid
, size_t ssid_len
)
5338 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5343 struct wpabuf
* p2p_build_nfc_handover_sel(struct p2p_data
*p2p
,
5345 const u8
*go_dev_addr
,
5346 const u8
*ssid
, size_t ssid_len
)
5348 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5353 int p2p_process_nfc_connection_handover(struct p2p_data
*p2p
,
5354 struct p2p_nfc_params
*params
)
5356 struct p2p_message msg
;
5357 struct p2p_device
*dev
;
5358 const u8
*p2p_dev_addr
;
5360 enum p2p_role_indication role
;
5362 params
->next_step
= NO_ACTION
;
5364 if (p2p_parse_ies_separate(params
->wsc_attr
, params
->wsc_len
,
5365 params
->p2p_attr
, params
->p2p_len
, &msg
)) {
5366 p2p_dbg(p2p
, "Failed to parse WSC/P2P attributes from NFC");
5367 p2p_parse_free(&msg
);
5371 if (msg
.p2p_device_addr
)
5372 p2p_dev_addr
= msg
.p2p_device_addr
;
5373 else if (msg
.device_id
)
5374 p2p_dev_addr
= msg
.device_id
;
5376 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
5377 p2p_parse_free(&msg
);
5381 if (msg
.oob_dev_password
) {
5382 os_memcpy(params
->oob_dev_pw
, msg
.oob_dev_password
,
5383 msg
.oob_dev_password_len
);
5384 params
->oob_dev_pw_len
= msg
.oob_dev_password_len
;
5387 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
5389 p2p_parse_free(&msg
);
5393 params
->peer
= &dev
->info
;
5395 os_get_reltime(&dev
->last_seen
);
5396 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
5397 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
5399 if (!msg
.oob_go_neg_channel
) {
5400 p2p_dbg(p2p
, "OOB GO Negotiation Channel attribute not included");
5401 p2p_parse_free(&msg
);
5405 if (msg
.oob_go_neg_channel
[3] == 0 &&
5406 msg
.oob_go_neg_channel
[4] == 0)
5409 freq
= p2p_channel_to_freq(msg
.oob_go_neg_channel
[3],
5410 msg
.oob_go_neg_channel
[4]);
5412 p2p_dbg(p2p
, "Unknown peer OOB GO Neg channel");
5413 p2p_parse_free(&msg
);
5416 role
= msg
.oob_go_neg_channel
[5];
5418 if (role
== P2P_GO_IN_A_GROUP
) {
5419 p2p_dbg(p2p
, "Peer OOB GO operating channel: %u MHz", freq
);
5420 params
->go_freq
= freq
;
5421 } else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5422 p2p_dbg(p2p
, "Peer (client) OOB GO operating channel: %u MHz",
5424 params
->go_freq
= freq
;
5426 p2p_dbg(p2p
, "Peer OOB GO Neg channel: %u MHz", freq
);
5427 dev
->oob_go_neg_freq
= freq
;
5429 if (!params
->sel
&& role
!= P2P_GO_IN_A_GROUP
) {
5430 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
,
5433 p2p_dbg(p2p
, "Own listen channel not known");
5434 p2p_parse_free(&msg
);
5437 p2p_dbg(p2p
, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq
);
5438 dev
->oob_go_neg_freq
= freq
;
5442 os_memcpy(params
->go_dev_addr
, msg
.group_id
, ETH_ALEN
);
5443 params
->go_ssid_len
= msg
.group_id_len
- ETH_ALEN
;
5444 os_memcpy(params
->go_ssid
, msg
.group_id
+ ETH_ALEN
,
5445 params
->go_ssid_len
);
5448 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
5449 p2p_dbg(p2p
, "Do not report rejected device");
5450 p2p_parse_free(&msg
);
5454 if (!(dev
->flags
& P2P_DEV_REPORTED
)) {
5455 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, p2p_dev_addr
, &dev
->info
,
5456 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
5457 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
5459 p2p_parse_free(&msg
);
5461 if (role
== P2P_GO_IN_A_GROUP
&& p2p
->num_groups
> 0)
5462 params
->next_step
= BOTH_GO
;
5463 else if (role
== P2P_GO_IN_A_GROUP
)
5464 params
->next_step
= JOIN_GROUP
;
5465 else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5466 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
5467 params
->next_step
= PEER_CLIENT
;
5468 } else if (p2p
->num_groups
> 0)
5469 params
->next_step
= AUTH_JOIN
;
5470 else if (params
->sel
)
5471 params
->next_step
= INIT_GO_NEG
;
5473 params
->next_step
= RESP_GO_NEG
;
5479 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data
*p2p
, u16 dev_pw_id
,
5481 const u8
*own_interface_addr
)
5484 p2p
->authorized_oob_dev_pw_id
= dev_pw_id
;
5485 if (dev_pw_id
== 0) {
5486 p2p_dbg(p2p
, "NFC OOB Password unauthorized for static handover");
5490 p2p_dbg(p2p
, "NFC OOB Password (id=%u) authorized for static handover",
5493 p2p
->go_intent
= go_intent
;
5494 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
5497 #endif /* CONFIG_WPS_NFC */
5500 int p2p_set_passphrase_len(struct p2p_data
*p2p
, unsigned int len
)
5502 if (len
< 8 || len
> 63)
5504 p2p
->cfg
->passphrase_len
= len
;
5509 void p2p_set_vendor_elems(struct p2p_data
*p2p
, struct wpabuf
**vendor_elem
)
5511 p2p
->vendor_elem
= vendor_elem
;
5515 void p2p_go_neg_wait_timeout(void *eloop_ctx
, void *timeout_ctx
)
5517 struct p2p_data
*p2p
= eloop_ctx
;
5520 "Timeout on waiting peer to become ready for GO Negotiation");
5521 p2p_go_neg_failed(p2p
, -1);
5525 void p2p_set_own_pref_freq_list(struct p2p_data
*p2p
,
5526 const unsigned int *pref_freq_list
,
5531 if (size
> P2P_MAX_PREF_CHANNELS
)
5532 size
= P2P_MAX_PREF_CHANNELS
;
5533 p2p
->num_pref_freq
= size
;
5534 for (i
= 0; i
< size
; i
++) {
5535 p2p
->pref_freq_list
[i
] = pref_freq_list
[i
];
5536 p2p_dbg(p2p
, "Own preferred frequency list[%u]=%u MHz",
5537 i
, p2p
->pref_freq_list
[i
]);
5542 void p2p_set_override_pref_op_chan(struct p2p_data
*p2p
, u8 op_class
,
5545 p2p
->override_pref_op_class
= op_class
;
5546 p2p
->override_pref_channel
= chan
;
5550 struct wpabuf
* p2p_build_probe_resp_template(struct p2p_data
*p2p
,
5553 struct wpabuf
*ies
, *buf
;
5554 u8 addr
[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
5557 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
5559 wpa_printf(MSG_ERROR
,
5560 "CTRL: Failed to build Probe Response IEs");
5564 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
5570 ret
= p2p_build_probe_resp_buf(p2p
, buf
, ies
, addr
, freq
);