2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_defs.h"
14 #include "common/ieee802_11_common.h"
15 #include "common/wpa_ctrl.h"
16 #include "crypto/sha256.h"
17 #include "crypto/crypto.h"
18 #include "wps/wps_i.h"
23 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
);
24 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
);
25 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
26 const u8
*sa
, const u8
*data
, size_t len
,
28 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
29 const u8
*sa
, const u8
*data
,
31 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
32 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
36 * p2p_scan recovery timeout
38 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
39 * timeout for this to avoid hitting P2P timeout unnecessarily.
41 #define P2P_SCAN_TIMEOUT 35
44 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
45 * entries will be removed
47 #ifndef P2P_PEER_EXPIRATION_AGE
48 #define P2P_PEER_EXPIRATION_AGE 60
49 #endif /* P2P_PEER_EXPIRATION_AGE */
52 void p2p_expire_peers(struct p2p_data
*p2p
)
54 struct p2p_device
*dev
, *n
;
55 struct os_reltime now
;
59 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
60 if (dev
->last_seen
.sec
+ P2P_PEER_EXPIRATION_AGE
>= now
.sec
)
63 if (dev
== p2p
->go_neg_peer
) {
65 * GO Negotiation is in progress with the peer, so
66 * don't expire the peer entry until GO Negotiation
72 if (p2p
->cfg
->go_connected
&&
73 p2p
->cfg
->go_connected(p2p
->cfg
->cb_ctx
,
74 dev
->info
.p2p_device_addr
)) {
76 * We are connected as a client to a group in which the
77 * peer is the GO, so do not expire the peer entry.
79 os_get_reltime(&dev
->last_seen
);
83 for (i
= 0; i
< p2p
->num_groups
; i
++) {
84 if (p2p_group_is_client_connected(
85 p2p
->groups
[i
], dev
->info
.p2p_device_addr
))
88 if (i
< p2p
->num_groups
) {
90 * The peer is connected as a client in a group where
91 * we are the GO, so do not expire the peer entry.
93 os_get_reltime(&dev
->last_seen
);
97 p2p_dbg(p2p
, "Expiring old peer entry " MACSTR
,
98 MAC2STR(dev
->info
.p2p_device_addr
));
99 dl_list_del(&dev
->list
);
100 p2p_device_free(p2p
, dev
);
105 static const char * p2p_state_txt(int state
)
114 case P2P_CONNECT_LISTEN
:
115 return "CONNECT_LISTEN";
118 case P2P_LISTEN_ONLY
:
119 return "LISTEN_ONLY";
120 case P2P_WAIT_PEER_CONNECT
:
121 return "WAIT_PEER_CONNECT";
122 case P2P_WAIT_PEER_IDLE
:
123 return "WAIT_PEER_IDLE";
124 case P2P_SD_DURING_FIND
:
125 return "SD_DURING_FIND";
126 case P2P_PROVISIONING
:
127 return "PROVISIONING";
128 case P2P_PD_DURING_FIND
:
129 return "PD_DURING_FIND";
132 case P2P_INVITE_LISTEN
:
133 return "INVITE_LISTEN";
140 const char * p2p_get_state_txt(struct p2p_data
*p2p
)
142 return p2p_state_txt(p2p
->state
);
146 struct p2ps_advertisement
* p2p_get_p2ps_adv_list(struct p2p_data
*p2p
)
148 return p2p
? p2p
->p2ps_adv_list
: NULL
;
152 void p2p_set_intended_addr(struct p2p_data
*p2p
, const u8
*intended_addr
)
154 if (p2p
&& intended_addr
)
155 os_memcpy(p2p
->intended_addr
, intended_addr
, ETH_ALEN
);
159 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
161 struct p2p_device
*dev
= NULL
;
166 dev
= p2p_get_device(p2p
, addr
);
168 return dev
->wps_prov_info
;
174 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
176 struct p2p_device
*dev
= NULL
;
181 dev
= p2p_get_device(p2p
, addr
);
183 dev
->wps_prov_info
= 0;
187 void p2p_set_state(struct p2p_data
*p2p
, int new_state
)
189 p2p_dbg(p2p
, "State %s -> %s",
190 p2p_state_txt(p2p
->state
), p2p_state_txt(new_state
));
191 p2p
->state
= new_state
;
193 if (new_state
== P2P_IDLE
&& p2p
->pending_channel
) {
194 p2p_dbg(p2p
, "Apply change in listen channel");
195 p2p
->cfg
->reg_class
= p2p
->pending_reg_class
;
196 p2p
->cfg
->channel
= p2p
->pending_channel
;
197 p2p
->pending_reg_class
= 0;
198 p2p
->pending_channel
= 0;
203 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
, unsigned int usec
)
205 p2p_dbg(p2p
, "Set timeout (state=%s): %u.%06u sec",
206 p2p_state_txt(p2p
->state
), sec
, usec
);
207 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
208 eloop_register_timeout(sec
, usec
, p2p_state_timeout
, p2p
, NULL
);
212 void p2p_clear_timeout(struct p2p_data
*p2p
)
214 p2p_dbg(p2p
, "Clear timeout (state=%s)", p2p_state_txt(p2p
->state
));
215 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
219 void p2p_go_neg_failed(struct p2p_data
*p2p
, int status
)
221 struct p2p_go_neg_results res
;
222 struct p2p_device
*peer
= p2p
->go_neg_peer
;
227 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
228 if (p2p
->state
!= P2P_SEARCH
) {
230 * Clear timeouts related to GO Negotiation if no new p2p_find
233 p2p_clear_timeout(p2p
);
234 p2p_set_state(p2p
, P2P_IDLE
);
237 peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
238 peer
->wps_method
= WPS_NOT_READY
;
240 wpabuf_free(peer
->go_neg_conf
);
241 peer
->go_neg_conf
= NULL
;
242 p2p
->go_neg_peer
= NULL
;
244 os_memset(&res
, 0, sizeof(res
));
246 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
247 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
248 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
252 static void p2p_listen_in_find(struct p2p_data
*p2p
, int dev_disc
)
258 p2p_dbg(p2p
, "Starting short listen state (state=%s)",
259 p2p_state_txt(p2p
->state
));
261 if (p2p
->pending_listen_freq
) {
262 /* We have a pending p2p_listen request */
263 p2p_dbg(p2p
, "p2p_listen command pending already");
267 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
269 p2p_dbg(p2p
, "Unknown regulatory class/channel");
273 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
275 tu
= (r
% ((p2p
->max_disc_int
- p2p
->min_disc_int
) + 1) +
276 p2p
->min_disc_int
) * 100;
277 if (p2p
->max_disc_tu
>= 0 && tu
> (unsigned int) p2p
->max_disc_tu
)
278 tu
= p2p
->max_disc_tu
;
279 if (!dev_disc
&& tu
< 100)
280 tu
= 100; /* Need to wait in non-device discovery use cases */
281 if (p2p
->cfg
->max_listen
&& 1024 * tu
/ 1000 > p2p
->cfg
->max_listen
)
282 tu
= p2p
->cfg
->max_listen
* 1000 / 1024;
285 p2p_dbg(p2p
, "Skip listen state since duration was 0 TU");
286 p2p_set_timeout(p2p
, 0, 0);
290 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
294 p2p
->pending_listen_freq
= freq
;
295 p2p
->pending_listen_sec
= 0;
296 p2p
->pending_listen_usec
= 1024 * tu
;
298 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, 1024 * tu
/ 1000,
300 p2p_dbg(p2p
, "Failed to start listen mode");
301 p2p
->pending_listen_freq
= 0;
307 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
)
312 p2p_dbg(p2p
, "Going to listen(only) state");
314 if (p2p
->pending_listen_freq
) {
315 /* We have a pending p2p_listen request */
316 p2p_dbg(p2p
, "p2p_listen command pending already");
320 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
322 p2p_dbg(p2p
, "Unknown regulatory class/channel");
326 p2p
->pending_listen_sec
= timeout
/ 1000;
327 p2p
->pending_listen_usec
= (timeout
% 1000) * 1000;
329 if (p2p
->p2p_scan_running
) {
330 if (p2p
->start_after_scan
== P2P_AFTER_SCAN_CONNECT
) {
331 p2p_dbg(p2p
, "p2p_scan running - connect is already pending - skip listen");
334 p2p_dbg(p2p
, "p2p_scan running - delay start of listen state");
335 p2p
->start_after_scan
= P2P_AFTER_SCAN_LISTEN
;
339 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
343 p2p
->pending_listen_freq
= freq
;
345 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, timeout
, ies
) < 0) {
346 p2p_dbg(p2p
, "Failed to start listen mode");
347 p2p
->pending_listen_freq
= 0;
353 p2p_set_state(p2p
, P2P_LISTEN_ONLY
);
359 static void p2p_device_clear_reported(struct p2p_data
*p2p
)
361 struct p2p_device
*dev
;
362 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
363 dev
->flags
&= ~P2P_DEV_REPORTED
;
370 * p2p_get_device - Fetch a peer entry
371 * @p2p: P2P module context from p2p_init()
372 * @addr: P2P Device Address of the peer
373 * Returns: Pointer to the device entry or %NULL if not found
375 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
)
377 struct p2p_device
*dev
;
378 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
379 if (os_memcmp(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
) == 0)
387 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
388 * @p2p: P2P module context from p2p_init()
389 * @addr: P2P Interface Address of the peer
390 * Returns: Pointer to the device entry or %NULL if not found
392 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
395 struct p2p_device
*dev
;
396 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
397 if (os_memcmp(dev
->interface_addr
, addr
, ETH_ALEN
) == 0)
405 * p2p_create_device - Create a peer entry
406 * @p2p: P2P module context from p2p_init()
407 * @addr: P2P Device Address of the peer
408 * Returns: Pointer to the device entry or %NULL on failure
410 * If there is already an entry for the peer, it will be returned instead of
411 * creating a new one.
413 static struct p2p_device
* p2p_create_device(struct p2p_data
*p2p
,
416 struct p2p_device
*dev
, *oldest
= NULL
;
419 dev
= p2p_get_device(p2p
, addr
);
423 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
425 if (oldest
== NULL
||
426 os_reltime_before(&dev
->last_seen
, &oldest
->last_seen
))
429 if (count
+ 1 > p2p
->cfg
->max_peers
&& oldest
) {
430 p2p_dbg(p2p
, "Remove oldest peer entry to make room for a new peer");
431 dl_list_del(&oldest
->list
);
432 p2p_device_free(p2p
, oldest
);
435 dev
= os_zalloc(sizeof(*dev
));
438 dl_list_add(&p2p
->devices
, &dev
->list
);
439 os_memcpy(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
);
445 static void p2p_copy_client_info(struct p2p_device
*dev
,
446 struct p2p_client_info
*cli
)
448 os_memcpy(dev
->info
.device_name
, cli
->dev_name
, cli
->dev_name_len
);
449 dev
->info
.device_name
[cli
->dev_name_len
] = '\0';
450 dev
->info
.dev_capab
= cli
->dev_capab
;
451 dev
->info
.config_methods
= cli
->config_methods
;
452 os_memcpy(dev
->info
.pri_dev_type
, cli
->pri_dev_type
, 8);
453 dev
->info
.wps_sec_dev_type_list_len
= 8 * cli
->num_sec_dev_types
;
454 os_memcpy(dev
->info
.wps_sec_dev_type_list
, cli
->sec_dev_types
,
455 dev
->info
.wps_sec_dev_type_list_len
);
459 static int p2p_add_group_clients(struct p2p_data
*p2p
, const u8
*go_dev_addr
,
460 const u8
*go_interface_addr
, int freq
,
461 const u8
*gi
, size_t gi_len
,
462 struct os_reltime
*rx_time
)
464 struct p2p_group_info info
;
466 struct p2p_device
*dev
;
471 if (p2p_group_info_parse(gi
, gi_len
, &info
) < 0)
475 * Clear old data for this group; if the devices are still in the
476 * group, the information will be restored in the loop following this.
478 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
479 if (os_memcmp(dev
->member_in_go_iface
, go_interface_addr
,
481 os_memset(dev
->member_in_go_iface
, 0, ETH_ALEN
);
482 os_memset(dev
->member_in_go_dev
, 0, ETH_ALEN
);
486 for (c
= 0; c
< info
.num_clients
; c
++) {
487 struct p2p_client_info
*cli
= &info
.client
[c
];
488 if (os_memcmp(cli
->p2p_device_addr
, p2p
->cfg
->dev_addr
,
490 continue; /* ignore our own entry */
491 dev
= p2p_get_device(p2p
, cli
->p2p_device_addr
);
493 if (dev
->flags
& (P2P_DEV_GROUP_CLIENT_ONLY
|
494 P2P_DEV_PROBE_REQ_ONLY
)) {
496 * Update information since we have not
497 * received this directly from the client.
499 p2p_copy_client_info(dev
, cli
);
502 * Need to update P2P Client Discoverability
503 * flag since it is valid only in P2P Group
506 dev
->info
.dev_capab
&=
507 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
508 dev
->info
.dev_capab
|=
510 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
512 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
513 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
516 dev
= p2p_create_device(p2p
, cli
->p2p_device_addr
);
519 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
520 p2p_copy_client_info(dev
, cli
);
521 dev
->oper_freq
= freq
;
522 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
,
523 dev
->info
.p2p_device_addr
,
525 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
528 os_memcpy(dev
->interface_addr
, cli
->p2p_interface_addr
,
530 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
531 os_memcpy(dev
->member_in_go_dev
, go_dev_addr
, ETH_ALEN
);
532 os_memcpy(dev
->member_in_go_iface
, go_interface_addr
,
534 dev
->flags
|= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
;
541 static void p2p_copy_wps_info(struct p2p_data
*p2p
, struct p2p_device
*dev
,
542 int probe_req
, const struct p2p_message
*msg
)
544 os_memcpy(dev
->info
.device_name
, msg
->device_name
,
545 sizeof(dev
->info
.device_name
));
547 if (msg
->manufacturer
&&
548 msg
->manufacturer_len
< sizeof(dev
->info
.manufacturer
)) {
549 os_memset(dev
->info
.manufacturer
, 0,
550 sizeof(dev
->info
.manufacturer
));
551 os_memcpy(dev
->info
.manufacturer
, msg
->manufacturer
,
552 msg
->manufacturer_len
);
555 if (msg
->model_name
&&
556 msg
->model_name_len
< sizeof(dev
->info
.model_name
)) {
557 os_memset(dev
->info
.model_name
, 0,
558 sizeof(dev
->info
.model_name
));
559 os_memcpy(dev
->info
.model_name
, msg
->model_name
,
560 msg
->model_name_len
);
563 if (msg
->model_number
&&
564 msg
->model_number_len
< sizeof(dev
->info
.model_number
)) {
565 os_memset(dev
->info
.model_number
, 0,
566 sizeof(dev
->info
.model_number
));
567 os_memcpy(dev
->info
.model_number
, msg
->model_number
,
568 msg
->model_number_len
);
571 if (msg
->serial_number
&&
572 msg
->serial_number_len
< sizeof(dev
->info
.serial_number
)) {
573 os_memset(dev
->info
.serial_number
, 0,
574 sizeof(dev
->info
.serial_number
));
575 os_memcpy(dev
->info
.serial_number
, msg
->serial_number
,
576 msg
->serial_number_len
);
579 if (msg
->pri_dev_type
)
580 os_memcpy(dev
->info
.pri_dev_type
, msg
->pri_dev_type
,
581 sizeof(dev
->info
.pri_dev_type
));
582 else if (msg
->wps_pri_dev_type
)
583 os_memcpy(dev
->info
.pri_dev_type
, msg
->wps_pri_dev_type
,
584 sizeof(dev
->info
.pri_dev_type
));
586 if (msg
->wps_sec_dev_type_list
) {
587 os_memcpy(dev
->info
.wps_sec_dev_type_list
,
588 msg
->wps_sec_dev_type_list
,
589 msg
->wps_sec_dev_type_list_len
);
590 dev
->info
.wps_sec_dev_type_list_len
=
591 msg
->wps_sec_dev_type_list_len
;
594 if (msg
->capability
) {
596 * P2P Client Discoverability bit is reserved in all frames
597 * that use this function, so do not change its value here.
599 dev
->info
.dev_capab
&= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
600 dev
->info
.dev_capab
|= msg
->capability
[0] &
601 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
602 dev
->info
.group_capab
= msg
->capability
[1];
605 if (msg
->ext_listen_timing
) {
606 dev
->ext_listen_period
= WPA_GET_LE16(msg
->ext_listen_timing
);
607 dev
->ext_listen_interval
=
608 WPA_GET_LE16(msg
->ext_listen_timing
+ 2);
612 u16 new_config_methods
;
613 new_config_methods
= msg
->config_methods
?
614 msg
->config_methods
: msg
->wps_config_methods
;
615 if (new_config_methods
&&
616 dev
->info
.config_methods
!= new_config_methods
) {
617 p2p_dbg(p2p
, "Update peer " MACSTR
618 " config_methods 0x%x -> 0x%x",
619 MAC2STR(dev
->info
.p2p_device_addr
),
620 dev
->info
.config_methods
,
622 dev
->info
.config_methods
= new_config_methods
;
628 static void p2p_update_peer_vendor_elems(struct p2p_device
*dev
, const u8
*ies
,
634 wpabuf_free(dev
->info
.vendor_elems
);
635 dev
->info
.vendor_elems
= NULL
;
639 for (pos
= ies
; pos
+ 1 < end
; pos
+= len
) {
646 if (id
!= WLAN_EID_VENDOR_SPECIFIC
|| len
< 3)
650 u32 type
= WPA_GET_BE32(pos
);
652 if (type
== WPA_IE_VENDOR_TYPE
||
653 type
== WMM_IE_VENDOR_TYPE
||
654 type
== WPS_IE_VENDOR_TYPE
||
655 type
== P2P_IE_VENDOR_TYPE
||
656 type
== WFD_IE_VENDOR_TYPE
)
660 /* Unknown vendor element - make raw IE data available */
661 if (wpabuf_resize(&dev
->info
.vendor_elems
, 2 + len
) < 0)
663 wpabuf_put_data(dev
->info
.vendor_elems
, pos
- 2, 2 + len
);
668 static int p2p_compare_wfd_info(struct p2p_device
*dev
,
669 const struct p2p_message
*msg
)
671 if (dev
->info
.wfd_subelems
&& msg
->wfd_subelems
) {
672 if (dev
->info
.wfd_subelems
->used
!= msg
->wfd_subelems
->used
)
675 return os_memcmp(dev
->info
.wfd_subelems
->buf
,
676 msg
->wfd_subelems
->buf
,
677 dev
->info
.wfd_subelems
->used
);
679 if (dev
->info
.wfd_subelems
|| msg
->wfd_subelems
)
687 * p2p_add_device - Add peer entries based on scan results or P2P frames
688 * @p2p: P2P module context from p2p_init()
689 * @addr: Source address of Beacon or Probe Response frame (may be either
690 * P2P Device Address or P2P Interface Address)
691 * @level: Signal level (signal strength of the received frame from the peer)
692 * @freq: Frequency on which the Beacon or Probe Response frame was received
693 * @rx_time: Time when the result was received
694 * @ies: IEs from the Beacon or Probe Response frame
695 * @ies_len: Length of ies buffer in octets
696 * @scan_res: Whether this was based on scan results
697 * Returns: 0 on success, -1 on failure
699 * If the scan result is for a GO, the clients in the group will also be added
700 * to the peer table. This function can also be used with some other frames
701 * like Provision Discovery Request that contains P2P Capability and P2P Device
704 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
,
705 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
706 size_t ies_len
, int scan_res
)
708 struct p2p_device
*dev
;
709 struct p2p_message msg
;
710 const u8
*p2p_dev_addr
;
713 struct os_reltime time_now
;
715 os_memset(&msg
, 0, sizeof(msg
));
716 if (p2p_parse_ies(ies
, ies_len
, &msg
)) {
717 p2p_dbg(p2p
, "Failed to parse P2P IE for a device entry");
718 p2p_parse_free(&msg
);
722 if (msg
.p2p_device_addr
)
723 p2p_dev_addr
= msg
.p2p_device_addr
;
724 else if (msg
.device_id
)
725 p2p_dev_addr
= msg
.device_id
;
727 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
728 p2p_parse_free(&msg
);
732 if (!is_zero_ether_addr(p2p
->peer_filter
) &&
733 os_memcmp(p2p_dev_addr
, p2p
->peer_filter
, ETH_ALEN
) != 0) {
734 p2p_dbg(p2p
, "Do not add peer filter for " MACSTR
735 " due to peer filter", MAC2STR(p2p_dev_addr
));
736 p2p_parse_free(&msg
);
740 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
742 p2p_parse_free(&msg
);
746 if (rx_time
== NULL
) {
747 os_get_reltime(&time_now
);
752 * Update the device entry only if the new peer
753 * entry is newer than the one previously stored, or if
754 * the device was previously seen as a P2P Client in a group
755 * and the new entry isn't older than a threshold.
757 if (dev
->last_seen
.sec
> 0 &&
758 os_reltime_before(rx_time
, &dev
->last_seen
) &&
759 (!(dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
) ||
760 os_reltime_expired(&dev
->last_seen
, rx_time
,
761 P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD
))) {
763 "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
764 (unsigned int) rx_time
->sec
,
765 (unsigned int) rx_time
->usec
,
766 (unsigned int) dev
->last_seen
.sec
,
767 (unsigned int) dev
->last_seen
.usec
,
769 p2p_parse_free(&msg
);
773 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
775 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
|
776 P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
);
778 if (os_memcmp(addr
, p2p_dev_addr
, ETH_ALEN
) != 0)
779 os_memcpy(dev
->interface_addr
, addr
, ETH_ALEN
);
781 msg
.ssid
[1] <= sizeof(dev
->oper_ssid
) &&
782 (msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
783 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
785 os_memcpy(dev
->oper_ssid
, msg
.ssid
+ 2, msg
.ssid
[1]);
786 dev
->oper_ssid_len
= msg
.ssid
[1];
789 if (msg
.adv_service_instance
&& msg
.adv_service_instance_len
) {
790 wpabuf_free(dev
->info
.p2ps_instance
);
791 dev
->info
.p2ps_instance
= wpabuf_alloc_copy(
792 msg
.adv_service_instance
, msg
.adv_service_instance_len
);
795 if (freq
>= 2412 && freq
<= 2484 && msg
.ds_params
&&
796 *msg
.ds_params
>= 1 && *msg
.ds_params
<= 14) {
798 if (*msg
.ds_params
== 14)
801 ds_freq
= 2407 + *msg
.ds_params
* 5;
802 if (freq
!= ds_freq
) {
803 p2p_dbg(p2p
, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
809 if (dev
->listen_freq
&& dev
->listen_freq
!= freq
&& scan_res
) {
810 p2p_dbg(p2p
, "Update Listen frequency based on scan results ("
811 MACSTR
" %d -> %d MHz (DS param %d)",
812 MAC2STR(dev
->info
.p2p_device_addr
), dev
->listen_freq
,
813 freq
, msg
.ds_params
? *msg
.ds_params
: -1);
816 dev
->listen_freq
= freq
;
818 dev
->oper_freq
= freq
;
820 dev
->info
.level
= level
;
822 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
824 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
825 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
826 dev
->info
.wps_vendor_ext
[i
] = NULL
;
829 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
830 if (msg
.wps_vendor_ext
[i
] == NULL
)
832 dev
->info
.wps_vendor_ext
[i
] = wpabuf_alloc_copy(
833 msg
.wps_vendor_ext
[i
], msg
.wps_vendor_ext_len
[i
]);
834 if (dev
->info
.wps_vendor_ext
[i
] == NULL
)
838 wfd_changed
= p2p_compare_wfd_info(dev
, &msg
);
840 if (msg
.wfd_subelems
) {
841 wpabuf_free(dev
->info
.wfd_subelems
);
842 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
846 p2p_add_group_clients(p2p
, p2p_dev_addr
, addr
, freq
,
847 msg
.group_info
, msg
.group_info_len
,
851 p2p_parse_free(&msg
);
853 p2p_update_peer_vendor_elems(dev
, ies
, ies_len
);
855 if (dev
->flags
& P2P_DEV_REPORTED
&& !wfd_changed
&&
856 (!msg
.adv_service_instance
||
857 (dev
->flags
& P2P_DEV_P2PS_REPORTED
)))
860 p2p_dbg(p2p
, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
861 freq
, (unsigned int) rx_time
->sec
,
862 (unsigned int) rx_time
->usec
);
863 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
864 p2p_dbg(p2p
, "Do not report rejected device");
868 if (dev
->info
.config_methods
== 0 &&
869 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
871 * If we have only seen a Beacon frame from a GO, we do not yet
872 * know what WPS config methods it supports. Since some
873 * applications use config_methods value from P2P-DEVICE-FOUND
874 * events, postpone reporting this peer until we've fully
875 * discovered its capabilities.
877 * At least for now, do this only if the peer was detected on
878 * one of the social channels since that peer can be easily be
879 * found again and there are no limitations of having to use
880 * passive scan on this channels, so this can be done through
881 * Probe Response frame that includes the config_methods
884 p2p_dbg(p2p
, "Do not report peer " MACSTR
885 " with unknown config methods", MAC2STR(addr
));
889 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
890 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
891 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
893 if (msg
.adv_service_instance
)
894 dev
->flags
|= P2P_DEV_P2PS_REPORTED
;
900 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
)
904 if (p2p
->go_neg_peer
== dev
) {
906 * If GO Negotiation is in progress, report that it has failed.
908 p2p_go_neg_failed(p2p
, -1);
910 if (p2p
->invite_peer
== dev
)
911 p2p
->invite_peer
= NULL
;
912 if (p2p
->sd_peer
== dev
)
914 if (p2p
->pending_client_disc_go
== dev
)
915 p2p
->pending_client_disc_go
= NULL
;
917 /* dev_lost() device, but only if it was previously dev_found() */
918 if (dev
->flags
& P2P_DEV_REPORTED_ONCE
)
919 p2p
->cfg
->dev_lost(p2p
->cfg
->cb_ctx
,
920 dev
->info
.p2p_device_addr
);
922 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
923 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
924 dev
->info
.wps_vendor_ext
[i
] = NULL
;
927 wpabuf_free(dev
->info
.wfd_subelems
);
928 wpabuf_free(dev
->info
.vendor_elems
);
929 wpabuf_free(dev
->go_neg_conf
);
930 wpabuf_free(dev
->info
.p2ps_instance
);
936 static int p2p_get_next_prog_freq(struct p2p_data
*p2p
)
938 struct p2p_channels
*c
;
939 struct p2p_reg_class
*cla
;
946 c
= &p2p
->cfg
->channels
;
947 for (cl
= 0; cl
< c
->reg_classes
; cl
++) {
948 cla
= &c
->reg_class
[cl
];
949 if (cla
->reg_class
!= p2p
->last_prog_scan_class
)
951 for (ch
= 0; ch
< cla
->channels
; ch
++) {
952 if (cla
->channel
[ch
] == p2p
->last_prog_scan_chan
) {
962 /* Start from beginning */
963 reg_class
= c
->reg_class
[0].reg_class
;
964 channel
= c
->reg_class
[0].channel
[0];
966 /* Pick the next channel */
968 if (ch
== cla
->channels
) {
970 if (cl
== c
->reg_classes
)
974 reg_class
= c
->reg_class
[cl
].reg_class
;
975 channel
= c
->reg_class
[cl
].channel
[ch
];
978 freq
= p2p_channel_to_freq(reg_class
, channel
);
979 p2p_dbg(p2p
, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
980 reg_class
, channel
, freq
);
981 p2p
->last_prog_scan_class
= reg_class
;
982 p2p
->last_prog_scan_chan
= channel
;
984 if (freq
== 2412 || freq
== 2437 || freq
== 2462)
985 return 0; /* No need to add social channels */
990 static void p2p_search(struct p2p_data
*p2p
)
993 enum p2p_scan_type type
;
994 u16 pw_id
= DEV_PW_DEFAULT
;
997 if (p2p
->drv_in_listen
) {
998 p2p_dbg(p2p
, "Driver is still in Listen state - wait for it to end before continuing");
1001 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1003 if (p2p
->find_type
== P2P_FIND_PROGRESSIVE
&&
1004 (freq
= p2p_get_next_prog_freq(p2p
)) > 0) {
1005 type
= P2P_SCAN_SOCIAL_PLUS_ONE
;
1006 p2p_dbg(p2p
, "Starting search (+ freq %u)", freq
);
1008 type
= P2P_SCAN_SOCIAL
;
1009 p2p_dbg(p2p
, "Starting search");
1012 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, type
, freq
,
1013 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
1014 p2p
->find_dev_id
, pw_id
);
1016 p2p_dbg(p2p
, "Scan request schedule failed");
1017 p2p_continue_find(p2p
);
1022 static void p2p_find_timeout(void *eloop_ctx
, void *timeout_ctx
)
1024 struct p2p_data
*p2p
= eloop_ctx
;
1025 p2p_dbg(p2p
, "Find timeout -> stop");
1030 void p2p_notify_scan_trigger_status(struct p2p_data
*p2p
, int status
)
1033 p2p_dbg(p2p
, "Scan request failed");
1034 /* Do continue find even for the first p2p_find_scan */
1035 p2p_continue_find(p2p
);
1037 p2p_dbg(p2p
, "Running p2p_scan");
1038 p2p
->p2p_scan_running
= 1;
1039 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
1040 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
1046 static int p2p_run_after_scan(struct p2p_data
*p2p
)
1048 struct p2p_device
*dev
;
1049 enum p2p_after_scan op
;
1051 if (p2p
->after_scan_tx
) {
1052 p2p
->after_scan_tx_in_progress
= 1;
1053 p2p_dbg(p2p
, "Send pending Action frame at p2p_scan completion");
1054 p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
,
1055 p2p
->after_scan_tx
->freq
,
1056 p2p
->after_scan_tx
->dst
,
1057 p2p
->after_scan_tx
->src
,
1058 p2p
->after_scan_tx
->bssid
,
1059 (u8
*) (p2p
->after_scan_tx
+ 1),
1060 p2p
->after_scan_tx
->len
,
1061 p2p
->after_scan_tx
->wait_time
);
1062 os_free(p2p
->after_scan_tx
);
1063 p2p
->after_scan_tx
= NULL
;
1067 op
= p2p
->start_after_scan
;
1068 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1070 case P2P_AFTER_SCAN_NOTHING
:
1072 case P2P_AFTER_SCAN_LISTEN
:
1073 p2p_dbg(p2p
, "Start previously requested Listen state");
1074 p2p_listen(p2p
, p2p
->pending_listen_sec
* 1000 +
1075 p2p
->pending_listen_usec
/ 1000);
1077 case P2P_AFTER_SCAN_CONNECT
:
1078 p2p_dbg(p2p
, "Start previously requested connect with " MACSTR
,
1079 MAC2STR(p2p
->after_scan_peer
));
1080 dev
= p2p_get_device(p2p
, p2p
->after_scan_peer
);
1082 p2p_dbg(p2p
, "Peer not known anymore");
1085 p2p_connect_send(p2p
, dev
);
1093 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
1095 struct p2p_data
*p2p
= eloop_ctx
;
1097 p2p_dbg(p2p
, "p2p_scan timeout (running=%d)", p2p
->p2p_scan_running
);
1098 running
= p2p
->p2p_scan_running
;
1099 /* Make sure we recover from missed scan results callback */
1100 p2p
->p2p_scan_running
= 0;
1103 p2p_run_after_scan(p2p
);
1107 static void p2p_free_req_dev_types(struct p2p_data
*p2p
)
1109 p2p
->num_req_dev_types
= 0;
1110 os_free(p2p
->req_dev_types
);
1111 p2p
->req_dev_types
= NULL
;
1115 static int p2ps_gen_hash(struct p2p_data
*p2p
, const char *str
, u8
*hash
)
1117 u8 buf
[SHA256_MAC_LEN
];
1119 const u8
*adv_array
;
1126 os_memcpy(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
);
1130 adv_array
= (u8
*) str_buf
;
1131 adv_len
= os_strlen(str
);
1132 if (adv_len
>= sizeof(str_buf
))
1135 for (i
= 0; i
< adv_len
; i
++) {
1136 if (str
[i
] >= 'A' && str
[i
] <= 'Z')
1137 str_buf
[i
] = str
[i
] - 'A' + 'a';
1139 str_buf
[i
] = str
[i
];
1142 if (sha256_vector(1, &adv_array
, &adv_len
, buf
))
1145 os_memcpy(hash
, buf
, P2PS_HASH_LEN
);
1150 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
1151 enum p2p_discovery_type type
,
1152 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
1153 const u8
*dev_id
, unsigned int search_delay
,
1154 u8 seek_count
, const char **seek
, int freq
)
1158 p2p_dbg(p2p
, "Starting find (type=%d)", type
);
1159 os_get_reltime(&p2p
->find_start
);
1160 if (p2p
->p2p_scan_running
) {
1161 p2p_dbg(p2p
, "p2p_scan is already running");
1164 p2p_free_req_dev_types(p2p
);
1165 if (req_dev_types
&& num_req_dev_types
) {
1166 p2p
->req_dev_types
= os_malloc(num_req_dev_types
*
1168 if (p2p
->req_dev_types
== NULL
)
1170 os_memcpy(p2p
->req_dev_types
, req_dev_types
,
1171 num_req_dev_types
* WPS_DEV_TYPE_LEN
);
1172 p2p
->num_req_dev_types
= num_req_dev_types
;
1176 os_memcpy(p2p
->find_dev_id_buf
, dev_id
, ETH_ALEN
);
1177 p2p
->find_dev_id
= p2p
->find_dev_id_buf
;
1179 p2p
->find_dev_id
= NULL
;
1181 if (seek_count
== 0 || !seek
) {
1182 /* Not an ASP search */
1184 } else if (seek_count
== 1 && seek
&& (!seek
[0] || !seek
[0][0])) {
1186 * An empty seek string means no hash values, but still an ASP
1189 p2p_dbg(p2p
, "ASP search");
1190 p2p
->p2ps_seek_count
= 0;
1192 } else if (seek
&& seek_count
<= P2P_MAX_QUERY_HASH
) {
1193 u8 buf
[P2PS_HASH_LEN
];
1196 for (i
= 0; i
< seek_count
; i
++) {
1197 if (!p2ps_gen_hash(p2p
, seek
[i
], buf
))
1200 p2p_dbg(p2p
, "Seek service %s hash " MACSTR
,
1201 seek
[i
], MAC2STR(buf
));
1202 os_memcpy(&p2p
->p2ps_seek_hash
[count
* P2PS_HASH_LEN
],
1203 buf
, P2PS_HASH_LEN
);
1207 p2p
->p2ps_seek_count
= count
;
1210 p2p
->p2ps_seek_count
= 0;
1214 /* Special case to perform wildcard search */
1215 if (p2p
->p2ps_seek_count
== 0 && p2p
->p2ps_seek
) {
1216 p2p
->p2ps_seek_count
= 1;
1217 os_memcpy(&p2p
->p2ps_seek_hash
, p2p
->wild_card_hash
,
1221 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1222 p2p_clear_timeout(p2p
);
1223 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1224 p2p
->find_type
= type
;
1225 p2p_device_clear_reported(p2p
);
1226 p2p_set_state(p2p
, P2P_SEARCH
);
1227 p2p
->search_delay
= search_delay
;
1228 p2p
->in_search_delay
= 0;
1229 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1230 p2p
->last_p2p_find_timeout
= timeout
;
1232 eloop_register_timeout(timeout
, 0, p2p_find_timeout
,
1235 case P2P_FIND_START_WITH_FULL
:
1238 * Start with the specified channel and then move to
1239 * social channels only scans.
1241 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
,
1242 P2P_SCAN_SPECIFIC
, freq
,
1243 p2p
->num_req_dev_types
,
1244 p2p
->req_dev_types
, dev_id
,
1249 case P2P_FIND_PROGRESSIVE
:
1250 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_FULL
, 0,
1251 p2p
->num_req_dev_types
,
1252 p2p
->req_dev_types
, dev_id
,
1255 case P2P_FIND_ONLY_SOCIAL
:
1256 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_SOCIAL
, 0,
1257 p2p
->num_req_dev_types
,
1258 p2p
->req_dev_types
, dev_id
,
1265 if (res
!= 0 && p2p
->p2p_scan_running
) {
1266 p2p_dbg(p2p
, "Failed to start p2p_scan - another p2p_scan was already running");
1267 /* wait for the previous p2p_scan to complete */
1268 res
= 0; /* do not report failure */
1269 } else if (res
!= 0) {
1270 p2p_dbg(p2p
, "Failed to start p2p_scan");
1271 p2p_set_state(p2p
, P2P_IDLE
);
1272 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1279 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
)
1281 p2p_dbg(p2p
, "Stopping find");
1282 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1283 p2p_clear_timeout(p2p
);
1284 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
1285 p2p
->cfg
->find_stopped(p2p
->cfg
->cb_ctx
);
1287 p2p
->p2ps_seek_count
= 0;
1289 p2p_set_state(p2p
, P2P_IDLE
);
1290 p2p_free_req_dev_types(p2p
);
1291 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1292 if (p2p
->go_neg_peer
)
1293 p2p
->go_neg_peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
1294 p2p
->go_neg_peer
= NULL
;
1295 p2p
->sd_peer
= NULL
;
1296 p2p
->invite_peer
= NULL
;
1297 p2p_stop_listen_for_freq(p2p
, freq
);
1298 p2p
->send_action_in_progress
= 0;
1302 void p2p_stop_listen_for_freq(struct p2p_data
*p2p
, int freq
)
1304 if (freq
> 0 && p2p
->drv_in_listen
== freq
&& p2p
->in_listen
) {
1305 p2p_dbg(p2p
, "Skip stop_listen since we are on correct channel for response");
1308 if (p2p
->in_listen
) {
1310 p2p_clear_timeout(p2p
);
1312 if (p2p
->drv_in_listen
) {
1314 * The driver may not deliver callback to p2p_listen_end()
1315 * when the operation gets canceled, so clear the internal
1316 * variable that is tracking driver state.
1318 p2p_dbg(p2p
, "Clear drv_in_listen (%d)", p2p
->drv_in_listen
);
1319 p2p
->drv_in_listen
= 0;
1321 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1325 void p2p_stop_listen(struct p2p_data
*p2p
)
1327 if (p2p
->state
!= P2P_LISTEN_ONLY
) {
1328 p2p_dbg(p2p
, "Skip stop_listen since not in listen_only state.");
1332 p2p_stop_listen_for_freq(p2p
, 0);
1333 p2p_set_state(p2p
, P2P_IDLE
);
1337 void p2p_stop_find(struct p2p_data
*p2p
)
1339 p2p
->pending_listen_freq
= 0;
1340 p2p_stop_find_for_freq(p2p
, 0);
1344 static int p2p_prepare_channel_pref(struct p2p_data
*p2p
,
1345 unsigned int force_freq
,
1346 unsigned int pref_freq
, int go
)
1348 u8 op_class
, op_channel
;
1349 unsigned int freq
= force_freq
? force_freq
: pref_freq
;
1351 p2p_dbg(p2p
, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1352 force_freq
, pref_freq
, go
);
1353 if (p2p_freq_to_channel(freq
, &op_class
, &op_channel
) < 0) {
1354 p2p_dbg(p2p
, "Unsupported frequency %u MHz", freq
);
1358 if (!p2p_channels_includes(&p2p
->cfg
->channels
, op_class
, op_channel
) &&
1359 (go
|| !p2p_channels_includes(&p2p
->cfg
->cli_channels
, op_class
,
1361 p2p_dbg(p2p
, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1362 freq
, op_class
, op_channel
);
1366 p2p
->op_reg_class
= op_class
;
1367 p2p
->op_channel
= op_channel
;
1370 p2p
->channels
.reg_classes
= 1;
1371 p2p
->channels
.reg_class
[0].channels
= 1;
1372 p2p
->channels
.reg_class
[0].reg_class
= p2p
->op_reg_class
;
1373 p2p
->channels
.reg_class
[0].channel
[0] = p2p
->op_channel
;
1375 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1376 sizeof(struct p2p_channels
));
1383 static void p2p_prepare_channel_best(struct p2p_data
*p2p
)
1385 u8 op_class
, op_channel
;
1386 const int op_classes_5ghz
[] = { 124, 125, 115, 0 };
1387 const int op_classes_ht40
[] = { 126, 127, 116, 117, 0 };
1388 const int op_classes_vht
[] = { 128, 0 };
1390 p2p_dbg(p2p
, "Prepare channel best");
1392 if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_overall
> 0 &&
1393 p2p_supported_freq(p2p
, p2p
->best_freq_overall
) &&
1394 p2p_freq_to_channel(p2p
->best_freq_overall
, &op_class
, &op_channel
)
1396 p2p_dbg(p2p
, "Select best overall channel as operating channel preference");
1397 p2p
->op_reg_class
= op_class
;
1398 p2p
->op_channel
= op_channel
;
1399 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_5
> 0 &&
1400 p2p_supported_freq(p2p
, p2p
->best_freq_5
) &&
1401 p2p_freq_to_channel(p2p
->best_freq_5
, &op_class
, &op_channel
)
1403 p2p_dbg(p2p
, "Select best 5 GHz channel as operating channel preference");
1404 p2p
->op_reg_class
= op_class
;
1405 p2p
->op_channel
= op_channel
;
1406 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_24
> 0 &&
1407 p2p_supported_freq(p2p
, p2p
->best_freq_24
) &&
1408 p2p_freq_to_channel(p2p
->best_freq_24
, &op_class
,
1409 &op_channel
) == 0) {
1410 p2p_dbg(p2p
, "Select best 2.4 GHz channel as operating channel preference");
1411 p2p
->op_reg_class
= op_class
;
1412 p2p
->op_channel
= op_channel
;
1413 } else if (p2p
->cfg
->num_pref_chan
> 0 &&
1414 p2p_channels_includes(&p2p
->cfg
->channels
,
1415 p2p
->cfg
->pref_chan
[0].op_class
,
1416 p2p
->cfg
->pref_chan
[0].chan
)) {
1417 p2p_dbg(p2p
, "Select first pref_chan entry as operating channel preference");
1418 p2p
->op_reg_class
= p2p
->cfg
->pref_chan
[0].op_class
;
1419 p2p
->op_channel
= p2p
->cfg
->pref_chan
[0].chan
;
1420 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_vht
,
1421 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1423 p2p_dbg(p2p
, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1424 p2p
->op_reg_class
, p2p
->op_channel
);
1425 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_ht40
,
1426 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1428 p2p_dbg(p2p
, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1429 p2p
->op_reg_class
, p2p
->op_channel
);
1430 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_5ghz
,
1431 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1433 p2p_dbg(p2p
, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1434 p2p
->op_reg_class
, p2p
->op_channel
);
1435 } else if (p2p_channels_includes(&p2p
->cfg
->channels
,
1436 p2p
->cfg
->op_reg_class
,
1437 p2p
->cfg
->op_channel
)) {
1438 p2p_dbg(p2p
, "Select pre-configured channel as operating channel preference");
1439 p2p
->op_reg_class
= p2p
->cfg
->op_reg_class
;
1440 p2p
->op_channel
= p2p
->cfg
->op_channel
;
1441 } else if (p2p_channel_random_social(&p2p
->cfg
->channels
,
1443 &p2p
->op_channel
) == 0) {
1444 p2p_dbg(p2p
, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1445 p2p
->op_reg_class
, p2p
->op_channel
);
1447 /* Select any random available channel from the first available
1448 * operating class */
1449 p2p_channel_select(&p2p
->cfg
->channels
, NULL
,
1452 p2p_dbg(p2p
, "Select random available channel %d from operating class %d as operating channel preference",
1453 p2p
->op_channel
, p2p
->op_reg_class
);
1456 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1457 sizeof(struct p2p_channels
));
1462 * p2p_prepare_channel - Select operating channel for GO Negotiation
1463 * @p2p: P2P module context from p2p_init()
1464 * @dev: Selected peer device
1465 * @force_freq: Forced frequency in MHz or 0 if not forced
1466 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1467 * @go: Whether the local end will be forced to be GO
1468 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1470 * This function is used to do initial operating channel selection for GO
1471 * Negotiation prior to having received peer information. The selected channel
1472 * may be further optimized in p2p_reselect_channel() once the peer information
1475 int p2p_prepare_channel(struct p2p_data
*p2p
, struct p2p_device
*dev
,
1476 unsigned int force_freq
, unsigned int pref_freq
, int go
)
1478 p2p_dbg(p2p
, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1479 force_freq
, pref_freq
, go
);
1480 if (force_freq
|| pref_freq
) {
1481 if (p2p_prepare_channel_pref(p2p
, force_freq
, pref_freq
, go
) <
1485 p2p_prepare_channel_best(p2p
);
1487 p2p_channels_dump(p2p
, "prepared channels", &p2p
->channels
);
1489 p2p_channels_remove_freqs(&p2p
->channels
, &p2p
->no_go_freq
);
1490 else if (!force_freq
)
1491 p2p_channels_union_inplace(&p2p
->channels
,
1492 &p2p
->cfg
->cli_channels
);
1493 p2p_channels_dump(p2p
, "after go/cli filter/add", &p2p
->channels
);
1495 p2p_dbg(p2p
, "Own preference for operation channel: Operating Class %u Channel %u%s",
1496 p2p
->op_reg_class
, p2p
->op_channel
,
1497 force_freq
? " (forced)" : "");
1500 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1502 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1508 static void p2p_set_dev_persistent(struct p2p_device
*dev
,
1509 int persistent_group
)
1511 switch (persistent_group
) {
1513 dev
->flags
&= ~(P2P_DEV_PREFER_PERSISTENT_GROUP
|
1514 P2P_DEV_PREFER_PERSISTENT_RECONN
);
1517 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
;
1518 dev
->flags
&= ~P2P_DEV_PREFER_PERSISTENT_RECONN
;
1521 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
|
1522 P2P_DEV_PREFER_PERSISTENT_RECONN
;
1528 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1529 enum p2p_wps_method wps_method
,
1530 int go_intent
, const u8
*own_interface_addr
,
1531 unsigned int force_freq
, int persistent_group
,
1532 const u8
*force_ssid
, size_t force_ssid_len
,
1533 int pd_before_go_neg
, unsigned int pref_freq
, u16 oob_pw_id
)
1535 struct p2p_device
*dev
;
1537 p2p_dbg(p2p
, "Request to start group negotiation - peer=" MACSTR
1538 " GO Intent=%d Intended Interface Address=" MACSTR
1539 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1541 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1542 wps_method
, persistent_group
, pd_before_go_neg
, oob_pw_id
);
1544 dev
= p2p_get_device(p2p
, peer_addr
);
1545 if (dev
== NULL
|| (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)) {
1546 p2p_dbg(p2p
, "Cannot connect to unknown P2P Device " MACSTR
,
1547 MAC2STR(peer_addr
));
1551 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
,
1552 go_intent
== 15) < 0)
1555 if (dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
) {
1556 if (!(dev
->info
.dev_capab
&
1557 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
)) {
1558 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1559 " that is in a group and is not discoverable",
1560 MAC2STR(peer_addr
));
1563 if (dev
->oper_freq
<= 0) {
1564 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1565 " with incomplete information",
1566 MAC2STR(peer_addr
));
1571 * First, try to connect directly. If the peer does not
1572 * acknowledge frames, assume it is sleeping and use device
1573 * discoverability via the GO at that point.
1579 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1580 force_ssid
, force_ssid_len
);
1581 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1582 p2p
->ssid_len
= force_ssid_len
;
1586 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1587 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1588 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
1589 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
1590 if (pd_before_go_neg
)
1591 dev
->flags
|= P2P_DEV_PD_BEFORE_GO_NEG
;
1593 dev
->flags
&= ~P2P_DEV_PD_BEFORE_GO_NEG
;
1595 * Assign dialog token and tie breaker here to use the same
1596 * values in each retry within the same GO Negotiation exchange.
1598 dev
->dialog_token
++;
1599 if (dev
->dialog_token
== 0)
1600 dev
->dialog_token
= 1;
1601 dev
->tie_breaker
= p2p
->next_tie_breaker
;
1602 p2p
->next_tie_breaker
= !p2p
->next_tie_breaker
;
1604 dev
->connect_reqs
= 0;
1605 dev
->go_neg_req_sent
= 0;
1606 dev
->go_state
= UNKNOWN_GO
;
1607 p2p_set_dev_persistent(dev
, persistent_group
);
1608 p2p
->go_intent
= go_intent
;
1609 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1611 if (p2p
->state
!= P2P_IDLE
)
1614 if (p2p
->after_scan_tx
) {
1616 * We need to drop the pending frame to avoid issues with the
1617 * new GO Negotiation, e.g., when the pending frame was from a
1618 * previous attempt at starting a GO Negotiation.
1620 p2p_dbg(p2p
, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
1621 os_free(p2p
->after_scan_tx
);
1622 p2p
->after_scan_tx
= NULL
;
1625 dev
->wps_method
= wps_method
;
1626 dev
->oob_pw_id
= oob_pw_id
;
1627 dev
->status
= P2P_SC_SUCCESS
;
1629 if (p2p
->p2p_scan_running
) {
1630 p2p_dbg(p2p
, "p2p_scan running - delay connect send");
1631 p2p
->start_after_scan
= P2P_AFTER_SCAN_CONNECT
;
1632 os_memcpy(p2p
->after_scan_peer
, peer_addr
, ETH_ALEN
);
1635 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1637 return p2p_connect_send(p2p
, dev
);
1641 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1642 enum p2p_wps_method wps_method
,
1643 int go_intent
, const u8
*own_interface_addr
,
1644 unsigned int force_freq
, int persistent_group
,
1645 const u8
*force_ssid
, size_t force_ssid_len
,
1646 unsigned int pref_freq
, u16 oob_pw_id
)
1648 struct p2p_device
*dev
;
1650 p2p_dbg(p2p
, "Request to authorize group negotiation - peer=" MACSTR
1651 " GO Intent=%d Intended Interface Address=" MACSTR
1652 " wps_method=%d persistent_group=%d oob_pw_id=%u",
1653 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1654 wps_method
, persistent_group
, oob_pw_id
);
1656 dev
= p2p_get_device(p2p
, peer_addr
);
1658 p2p_dbg(p2p
, "Cannot authorize unknown P2P Device " MACSTR
,
1659 MAC2STR(peer_addr
));
1663 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
, go_intent
==
1669 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1670 force_ssid
, force_ssid_len
);
1671 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1672 p2p
->ssid_len
= force_ssid_len
;
1676 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1677 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1678 dev
->go_neg_req_sent
= 0;
1679 dev
->go_state
= UNKNOWN_GO
;
1680 p2p_set_dev_persistent(dev
, persistent_group
);
1681 p2p
->go_intent
= go_intent
;
1682 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1684 dev
->wps_method
= wps_method
;
1685 dev
->oob_pw_id
= oob_pw_id
;
1686 dev
->status
= P2P_SC_SUCCESS
;
1692 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
1693 struct p2p_device
*dev
, struct p2p_message
*msg
)
1695 os_get_reltime(&dev
->last_seen
);
1697 p2p_copy_wps_info(p2p
, dev
, 0, msg
);
1699 if (msg
->listen_channel
) {
1701 freq
= p2p_channel_to_freq(msg
->listen_channel
[3],
1702 msg
->listen_channel
[4]);
1704 p2p_dbg(p2p
, "Unknown peer Listen channel: "
1705 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1706 msg
->listen_channel
[0],
1707 msg
->listen_channel
[1],
1708 msg
->listen_channel
[2],
1709 msg
->listen_channel
[3],
1710 msg
->listen_channel
[4]);
1712 p2p_dbg(p2p
, "Update peer " MACSTR
1713 " Listen channel: %u -> %u MHz",
1714 MAC2STR(dev
->info
.p2p_device_addr
),
1715 dev
->listen_freq
, freq
);
1716 dev
->listen_freq
= freq
;
1720 if (msg
->wfd_subelems
) {
1721 wpabuf_free(dev
->info
.wfd_subelems
);
1722 dev
->info
.wfd_subelems
= wpabuf_dup(msg
->wfd_subelems
);
1725 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
1726 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
1727 p2p_dbg(p2p
, "Completed device entry based on data from GO Negotiation Request");
1729 p2p_dbg(p2p
, "Created device entry based on GO Neg Req: "
1730 MACSTR
" dev_capab=0x%x group_capab=0x%x name='%s' "
1732 MAC2STR(dev
->info
.p2p_device_addr
),
1733 dev
->info
.dev_capab
, dev
->info
.group_capab
,
1734 dev
->info
.device_name
, dev
->listen_freq
);
1737 dev
->flags
&= ~P2P_DEV_GROUP_CLIENT_ONLY
;
1739 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
1740 p2p_dbg(p2p
, "Do not report rejected device");
1744 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
1745 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
1746 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
1750 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
)
1752 os_memcpy(ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1753 p2p_random((char *) &ssid
[P2P_WILDCARD_SSID_LEN
], 2);
1754 os_memcpy(&ssid
[P2P_WILDCARD_SSID_LEN
+ 2],
1755 p2p
->cfg
->ssid_postfix
, p2p
->cfg
->ssid_postfix_len
);
1756 *ssid_len
= P2P_WILDCARD_SSID_LEN
+ 2 + p2p
->cfg
->ssid_postfix_len
;
1760 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
)
1762 if (p2p
->ssid_set
) {
1763 os_memcpy(params
->ssid
, p2p
->ssid
, p2p
->ssid_len
);
1764 params
->ssid_len
= p2p
->ssid_len
;
1766 p2p_build_ssid(p2p
, params
->ssid
, ¶ms
->ssid_len
);
1770 p2p_random(params
->passphrase
, p2p
->cfg
->passphrase_len
);
1775 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
)
1777 struct p2p_go_neg_results res
;
1778 int go
= peer
->go_state
== LOCAL_GO
;
1779 struct p2p_channels intersection
;
1781 p2p_dbg(p2p
, "GO Negotiation with " MACSTR
" completed (%s will be GO)",
1782 MAC2STR(peer
->info
.p2p_device_addr
), go
? "local end" : "peer");
1784 os_memset(&res
, 0, sizeof(res
));
1786 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
1787 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
1788 res
.wps_method
= peer
->wps_method
;
1789 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
) {
1790 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_RECONN
)
1791 res
.persistent_group
= 2;
1793 res
.persistent_group
= 1;
1797 /* Setup AP mode for WPS provisioning */
1798 res
.freq
= p2p_channel_to_freq(p2p
->op_reg_class
,
1800 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1801 res
.ssid_len
= p2p
->ssid_len
;
1802 p2p_random(res
.passphrase
, p2p
->cfg
->passphrase_len
);
1804 res
.freq
= peer
->oper_freq
;
1805 if (p2p
->ssid_len
) {
1806 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1807 res
.ssid_len
= p2p
->ssid_len
;
1811 p2p_channels_dump(p2p
, "own channels", &p2p
->channels
);
1812 p2p_channels_dump(p2p
, "peer channels", &peer
->channels
);
1813 p2p_channels_intersect(&p2p
->channels
, &peer
->channels
,
1816 p2p_channels_remove_freqs(&intersection
, &p2p
->no_go_freq
);
1817 p2p_channels_dump(p2p
, "intersection after no-GO removal",
1821 p2p_channels_to_freqs(&intersection
, res
.freq_list
,
1824 res
.peer_config_timeout
= go
? peer
->client_timeout
: peer
->go_timeout
;
1826 p2p_clear_timeout(p2p
);
1828 peer
->go_neg_req_sent
= 0;
1829 peer
->wps_method
= WPS_NOT_READY
;
1830 peer
->oob_pw_id
= 0;
1831 wpabuf_free(peer
->go_neg_conf
);
1832 peer
->go_neg_conf
= NULL
;
1834 p2p_set_state(p2p
, P2P_PROVISIONING
);
1835 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
1839 static void p2p_rx_p2p_action(struct p2p_data
*p2p
, const u8
*sa
,
1840 const u8
*data
, size_t len
, int rx_freq
)
1842 p2p_dbg(p2p
, "RX P2P Public Action from " MACSTR
, MAC2STR(sa
));
1843 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Public Action contents", data
, len
);
1849 case P2P_GO_NEG_REQ
:
1850 p2p_process_go_neg_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1852 case P2P_GO_NEG_RESP
:
1853 p2p_process_go_neg_resp(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1855 case P2P_GO_NEG_CONF
:
1856 p2p_process_go_neg_conf(p2p
, sa
, data
+ 1, len
- 1);
1858 case P2P_INVITATION_REQ
:
1859 p2p_process_invitation_req(p2p
, sa
, data
+ 1, len
- 1,
1862 case P2P_INVITATION_RESP
:
1863 p2p_process_invitation_resp(p2p
, sa
, data
+ 1, len
- 1);
1865 case P2P_PROV_DISC_REQ
:
1866 p2p_process_prov_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1868 case P2P_PROV_DISC_RESP
:
1869 p2p_process_prov_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1871 case P2P_DEV_DISC_REQ
:
1872 p2p_process_dev_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1874 case P2P_DEV_DISC_RESP
:
1875 p2p_process_dev_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1878 p2p_dbg(p2p
, "Unsupported P2P Public Action frame type %d",
1885 static void p2p_rx_action_public(struct p2p_data
*p2p
, const u8
*da
,
1886 const u8
*sa
, const u8
*bssid
, const u8
*data
,
1887 size_t len
, int freq
)
1893 case WLAN_PA_VENDOR_SPECIFIC
:
1898 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1904 p2p_rx_p2p_action(p2p
, sa
, data
, len
, freq
);
1906 case WLAN_PA_GAS_INITIAL_REQ
:
1907 p2p_rx_gas_initial_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1909 case WLAN_PA_GAS_INITIAL_RESP
:
1910 p2p_rx_gas_initial_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1912 case WLAN_PA_GAS_COMEBACK_REQ
:
1913 p2p_rx_gas_comeback_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1915 case WLAN_PA_GAS_COMEBACK_RESP
:
1916 p2p_rx_gas_comeback_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1922 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1923 const u8
*bssid
, u8 category
,
1924 const u8
*data
, size_t len
, int freq
)
1926 if (category
== WLAN_ACTION_PUBLIC
) {
1927 p2p_rx_action_public(p2p
, da
, sa
, bssid
, data
, len
, freq
);
1931 if (category
!= WLAN_ACTION_VENDOR_SPECIFIC
)
1937 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1942 /* P2P action frame */
1943 p2p_dbg(p2p
, "RX P2P Action from " MACSTR
, MAC2STR(sa
));
1944 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Action contents", data
, len
);
1950 p2p_dbg(p2p
, "Received P2P Action - Notice of Absence");
1953 case P2P_PRESENCE_REQ
:
1954 p2p_process_presence_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1956 case P2P_PRESENCE_RESP
:
1957 p2p_process_presence_resp(p2p
, da
, sa
, data
+ 1, len
- 1);
1959 case P2P_GO_DISC_REQ
:
1960 p2p_process_go_disc_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1963 p2p_dbg(p2p
, "Received P2P Action - unknown type %u", data
[0]);
1969 static void p2p_go_neg_start(void *eloop_ctx
, void *timeout_ctx
)
1971 struct p2p_data
*p2p
= eloop_ctx
;
1972 if (p2p
->go_neg_peer
== NULL
)
1974 if (p2p
->pending_listen_freq
) {
1975 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_go_neg_start");
1976 p2p
->pending_listen_freq
= 0;
1978 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1979 p2p
->go_neg_peer
->status
= P2P_SC_SUCCESS
;
1981 * Set new timeout to make sure a previously set one does not expire
1982 * too quickly while waiting for the GO Negotiation to complete.
1984 p2p_set_timeout(p2p
, 0, 500000);
1985 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
1989 static void p2p_invite_start(void *eloop_ctx
, void *timeout_ctx
)
1991 struct p2p_data
*p2p
= eloop_ctx
;
1992 if (p2p
->invite_peer
== NULL
)
1994 if (p2p
->pending_listen_freq
) {
1995 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_invite_start");
1996 p2p
->pending_listen_freq
= 0;
1998 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1999 p2p_invite_send(p2p
, p2p
->invite_peer
, p2p
->invite_go_dev_addr
,
2000 p2p
->invite_dev_pw_id
);
2004 static void p2p_add_dev_from_probe_req(struct p2p_data
*p2p
, const u8
*addr
,
2005 const u8
*ie
, size_t ie_len
)
2007 struct p2p_message msg
;
2008 struct p2p_device
*dev
;
2010 os_memset(&msg
, 0, sizeof(msg
));
2011 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0 || msg
.p2p_attributes
== NULL
)
2013 p2p_parse_free(&msg
);
2014 return; /* not a P2P probe */
2017 if (msg
.ssid
== NULL
|| msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
2018 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
2020 /* The Probe Request is not part of P2P Device Discovery. It is
2021 * not known whether the source address of the frame is the P2P
2022 * Device Address or P2P Interface Address. Do not add a new
2023 * peer entry based on this frames.
2025 p2p_parse_free(&msg
);
2029 dev
= p2p_get_device(p2p
, addr
);
2031 if (dev
->country
[0] == 0 && msg
.listen_channel
)
2032 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2033 os_get_reltime(&dev
->last_seen
);
2034 p2p_parse_free(&msg
);
2035 return; /* already known */
2038 dev
= p2p_create_device(p2p
, addr
);
2040 p2p_parse_free(&msg
);
2044 os_get_reltime(&dev
->last_seen
);
2045 dev
->flags
|= P2P_DEV_PROBE_REQ_ONLY
;
2047 if (msg
.listen_channel
) {
2048 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2049 dev
->listen_freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
2050 msg
.listen_channel
[4]);
2053 p2p_copy_wps_info(p2p
, dev
, 1, &msg
);
2055 if (msg
.wfd_subelems
) {
2056 wpabuf_free(dev
->info
.wfd_subelems
);
2057 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
2060 p2p_parse_free(&msg
);
2062 p2p_dbg(p2p
, "Created device entry based on Probe Req: " MACSTR
2063 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
2064 MAC2STR(dev
->info
.p2p_device_addr
), dev
->info
.dev_capab
,
2065 dev
->info
.group_capab
, dev
->info
.device_name
,
2070 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
2072 struct p2p_message
*msg
)
2074 struct p2p_device
*dev
;
2076 dev
= p2p_get_device(p2p
, addr
);
2078 os_get_reltime(&dev
->last_seen
);
2079 return dev
; /* already known */
2082 dev
= p2p_create_device(p2p
, addr
);
2086 p2p_add_dev_info(p2p
, addr
, dev
, msg
);
2092 static int dev_type_match(const u8
*dev_type
, const u8
*req_dev_type
)
2094 if (os_memcmp(dev_type
, req_dev_type
, WPS_DEV_TYPE_LEN
) == 0)
2096 if (os_memcmp(dev_type
, req_dev_type
, 2) == 0 &&
2097 WPA_GET_BE32(&req_dev_type
[2]) == 0 &&
2098 WPA_GET_BE16(&req_dev_type
[6]) == 0)
2099 return 1; /* Category match with wildcard OUI/sub-category */
2104 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
2105 size_t num_req_dev_type
)
2108 for (i
= 0; i
< num_req_dev_type
; i
++) {
2109 if (dev_type_match(dev_type
, req_dev_type
[i
]))
2117 * p2p_match_dev_type - Match local device type with requested type
2118 * @p2p: P2P module context from p2p_init()
2119 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2120 * Returns: 1 on match, 0 on mismatch
2122 * This function can be used to match the Requested Device Type attribute in
2123 * WPS IE with the local device types for deciding whether to reply to a Probe
2126 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
)
2128 struct wps_parse_attr attr
;
2131 if (wps_parse_msg(wps
, &attr
))
2132 return 1; /* assume no Requested Device Type attributes */
2134 if (attr
.num_req_dev_type
== 0)
2135 return 1; /* no Requested Device Type attributes -> match */
2137 if (dev_type_list_match(p2p
->cfg
->pri_dev_type
, attr
.req_dev_type
,
2138 attr
.num_req_dev_type
))
2139 return 1; /* Own Primary Device Type matches */
2141 for (i
= 0; i
< p2p
->cfg
->num_sec_dev_types
; i
++) {
2142 if (dev_type_list_match(p2p
->cfg
->sec_dev_type
[i
],
2144 attr
.num_req_dev_type
))
2145 return 1; /* Own Secondary Device Type matches */
2148 /* No matching device type found */
2153 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
,
2154 const u8
*query_hash
,
2162 #ifdef CONFIG_WIFI_DISPLAY
2163 if (p2p
->wfd_ie_probe_resp
)
2164 extra
= wpabuf_len(p2p
->wfd_ie_probe_resp
);
2165 #endif /* CONFIG_WIFI_DISPLAY */
2167 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2168 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2171 extra
+= MAX_SVC_ADV_IE_LEN
;
2173 buf
= wpabuf_alloc(1000 + extra
);
2177 if (p2p
->go_neg_peer
) {
2178 /* Advertise immediate availability of WPS credential */
2179 pw_id
= p2p_wps_method_pw_id(p2p
->go_neg_peer
->wps_method
);
2182 if (p2p_build_wps_ie(p2p
, buf
, pw_id
, 1) < 0) {
2183 p2p_dbg(p2p
, "Failed to build WPS IE for Probe Response");
2188 #ifdef CONFIG_WIFI_DISPLAY
2189 if (p2p
->wfd_ie_probe_resp
)
2190 wpabuf_put_buf(buf
, p2p
->wfd_ie_probe_resp
);
2191 #endif /* CONFIG_WIFI_DISPLAY */
2193 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2195 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2198 len
= p2p_buf_add_ie_hdr(buf
);
2199 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
2200 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
2201 if (p2p
->ext_listen_interval
)
2202 p2p_buf_add_ext_listen_timing(buf
, p2p
->ext_listen_period
,
2203 p2p
->ext_listen_interval
);
2204 p2p_buf_add_device_info(buf
, p2p
, NULL
);
2205 p2p_buf_update_ie_hdr(buf
, len
);
2208 p2p_buf_add_service_instance(buf
, p2p
, query_count
, query_hash
,
2209 p2p
->p2ps_adv_list
);
2216 static int p2p_service_find_asp(struct p2p_data
*p2p
, const u8
*hash
)
2218 struct p2ps_advertisement
*adv_data
;
2221 p2p_dbg(p2p
, "ASP find - ASP list: %p", p2p
->p2ps_adv_list
);
2223 /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
2224 any_wfa
= os_memcmp(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
) == 0;
2226 adv_data
= p2p
->p2ps_adv_list
;
2228 if (os_memcmp(hash
, adv_data
->hash
, P2PS_HASH_LEN
) == 0)
2229 return 1; /* exact hash match */
2231 os_strncmp(adv_data
->svc_name
, P2PS_WILD_HASH_STR
,
2232 os_strlen(P2PS_WILD_HASH_STR
)) == 0)
2233 return 1; /* WFA service match */
2234 adv_data
= adv_data
->next
;
2241 static enum p2p_probe_req_status
2242 p2p_reply_probe(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2243 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2244 unsigned int rx_freq
)
2246 struct ieee802_11_elems elems
;
2248 struct ieee80211_mgmt
*resp
;
2249 struct p2p_message msg
;
2251 u8 channel
, op_class
;
2253 if (ieee802_11_parse_elems((u8
*) ie
, ie_len
, &elems
, 0) ==
2255 /* Ignore invalid Probe Request frames */
2256 p2p_dbg(p2p
, "Could not parse Probe Request frame - ignore it");
2257 return P2P_PREQ_MALFORMED
;
2260 if (elems
.p2p
== NULL
) {
2261 /* not a P2P probe - ignore it */
2262 p2p_dbg(p2p
, "Not a P2P probe - ignore it");
2263 return P2P_PREQ_NOT_P2P
;
2266 if (dst
&& !is_broadcast_ether_addr(dst
) &&
2267 os_memcmp(dst
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2268 /* Not sent to the broadcast address or our P2P Device Address
2270 p2p_dbg(p2p
, "Probe Req DA " MACSTR
" not ours - ignore it",
2272 return P2P_PREQ_NOT_PROCESSED
;
2275 if (bssid
&& !is_broadcast_ether_addr(bssid
)) {
2276 /* Not sent to the Wildcard BSSID */
2277 p2p_dbg(p2p
, "Probe Req BSSID " MACSTR
" not wildcard - ignore it",
2279 return P2P_PREQ_NOT_PROCESSED
;
2282 if (elems
.ssid
== NULL
|| elems
.ssid_len
!= P2P_WILDCARD_SSID_LEN
||
2283 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
) !=
2285 /* not using P2P Wildcard SSID - ignore */
2286 p2p_dbg(p2p
, "Probe Req not using P2P Wildcard SSID - ignore it");
2287 return P2P_PREQ_NOT_PROCESSED
;
2290 if (supp_rates_11b_only(&elems
)) {
2291 /* Indicates support for 11b rates only */
2292 p2p_dbg(p2p
, "Probe Req with 11b rates only supported - ignore it");
2293 return P2P_PREQ_NOT_P2P
;
2296 os_memset(&msg
, 0, sizeof(msg
));
2297 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0) {
2298 /* Could not parse P2P attributes */
2299 p2p_dbg(p2p
, "Could not parse P2P attributes in Probe Req - ignore it");
2300 return P2P_PREQ_NOT_P2P
;
2303 if (msg
.service_hash
&& msg
.service_hash_count
) {
2304 const u8
*hash
= msg
.service_hash
;
2306 int p2ps_svc_found
= 0;
2308 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",
2309 p2p
->in_listen
, p2p
->drv_in_listen
, rx_freq
,
2310 p2p
->cfg
->channel
, p2p
->pending_listen_freq
);
2312 if (!p2p
->in_listen
&& !p2p
->drv_in_listen
&&
2313 p2p
->pending_listen_freq
&& rx_freq
&&
2314 rx_freq
!= p2p
->pending_listen_freq
) {
2315 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",
2316 rx_freq
, p2p
->pending_listen_freq
);
2317 p2p_parse_free(&msg
);
2318 return P2P_PREQ_NOT_LISTEN
;
2321 for (i
= 0; i
< msg
.service_hash_count
; i
++) {
2322 if (p2p_service_find_asp(p2p
, hash
)) {
2323 p2p_dbg(p2p
, "Service Hash match found: "
2324 MACSTR
, MAC2STR(hash
));
2328 hash
+= P2PS_HASH_LEN
;
2331 /* Probed hash unknown */
2332 if (!p2ps_svc_found
) {
2333 p2p_dbg(p2p
, "No Service Hash match found");
2334 p2p_parse_free(&msg
);
2335 return P2P_PREQ_NOT_PROCESSED
;
2338 /* This is not a P2PS Probe Request */
2339 p2p_dbg(p2p
, "No P2PS Hash in Probe Request");
2341 if (!p2p
->in_listen
|| !p2p
->drv_in_listen
) {
2342 /* not in Listen state - ignore Probe Request */
2343 p2p_dbg(p2p
, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2344 p2p
->in_listen
, p2p
->drv_in_listen
);
2345 p2p_parse_free(&msg
);
2346 return P2P_PREQ_NOT_LISTEN
;
2350 if (msg
.device_id
&&
2351 os_memcmp(msg
.device_id
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2352 /* Device ID did not match */
2353 p2p_dbg(p2p
, "Probe Req requested Device ID " MACSTR
" did not match - ignore it",
2354 MAC2STR(msg
.device_id
));
2355 p2p_parse_free(&msg
);
2356 return P2P_PREQ_NOT_PROCESSED
;
2359 /* Check Requested Device Type match */
2360 if (msg
.wps_attributes
&&
2361 !p2p_match_dev_type(p2p
, msg
.wps_attributes
)) {
2362 /* No match with Requested Device Type */
2363 p2p_dbg(p2p
, "Probe Req requestred Device Type did not match - ignore it");
2364 p2p_parse_free(&msg
);
2365 return P2P_PREQ_NOT_PROCESSED
;
2368 if (!p2p
->cfg
->send_probe_resp
) {
2369 /* Response generated elsewhere */
2370 p2p_dbg(p2p
, "Probe Resp generated elsewhere - do not generate additional response");
2371 p2p_parse_free(&msg
);
2372 return P2P_PREQ_NOT_PROCESSED
;
2375 p2p_dbg(p2p
, "Reply to P2P Probe Request in Listen state");
2378 * We do not really have a specific BSS that this frame is advertising,
2379 * so build a frame that has some information in valid format. This is
2380 * really only used for discovery purposes, not to learn exact BSS
2383 ies
= p2p_build_probe_resp_ies(p2p
, msg
.service_hash
,
2384 msg
.service_hash_count
);
2385 p2p_parse_free(&msg
);
2387 return P2P_PREQ_NOT_PROCESSED
;
2389 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
2392 return P2P_PREQ_NOT_PROCESSED
;
2395 resp
= wpabuf_put(buf
, offsetof(struct ieee80211_mgmt
,
2396 u
.probe_resp
.variable
));
2398 resp
->frame_control
= host_to_le16((WLAN_FC_TYPE_MGMT
<< 2) |
2399 (WLAN_FC_STYPE_PROBE_RESP
<< 4));
2400 os_memcpy(resp
->da
, addr
, ETH_ALEN
);
2401 os_memcpy(resp
->sa
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2402 os_memcpy(resp
->bssid
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2403 resp
->u
.probe_resp
.beacon_int
= host_to_le16(100);
2404 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2405 resp
->u
.probe_resp
.capab_info
=
2406 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
|
2407 WLAN_CAPABILITY_PRIVACY
|
2408 WLAN_CAPABILITY_SHORT_SLOT_TIME
);
2410 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
2411 wpabuf_put_u8(buf
, P2P_WILDCARD_SSID_LEN
);
2412 wpabuf_put_data(buf
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
2414 wpabuf_put_u8(buf
, WLAN_EID_SUPP_RATES
);
2415 wpabuf_put_u8(buf
, 8);
2416 wpabuf_put_u8(buf
, (60 / 5) | 0x80);
2417 wpabuf_put_u8(buf
, 90 / 5);
2418 wpabuf_put_u8(buf
, (120 / 5) | 0x80);
2419 wpabuf_put_u8(buf
, 180 / 5);
2420 wpabuf_put_u8(buf
, (240 / 5) | 0x80);
2421 wpabuf_put_u8(buf
, 360 / 5);
2422 wpabuf_put_u8(buf
, 480 / 5);
2423 wpabuf_put_u8(buf
, 540 / 5);
2426 channel
= p2p
->cfg
->channel
;
2427 } else if (p2p_freq_to_channel(rx_freq
, &op_class
, &channel
)) {
2430 return P2P_PREQ_NOT_PROCESSED
;
2433 wpabuf_put_u8(buf
, WLAN_EID_DS_PARAMS
);
2434 wpabuf_put_u8(buf
, 1);
2435 wpabuf_put_u8(buf
, channel
);
2437 wpabuf_put_buf(buf
, ies
);
2440 p2p
->cfg
->send_probe_resp(p2p
->cfg
->cb_ctx
, buf
, rx_freq
);
2444 return P2P_PREQ_PROCESSED
;
2448 enum p2p_probe_req_status
2449 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2450 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2451 unsigned int rx_freq
)
2453 enum p2p_probe_req_status res
;
2455 p2p_add_dev_from_probe_req(p2p
, addr
, ie
, ie_len
);
2457 res
= p2p_reply_probe(p2p
, addr
, dst
, bssid
, ie
, ie_len
, rx_freq
);
2458 if (res
!= P2P_PREQ_PROCESSED
&& res
!= P2P_PREQ_NOT_PROCESSED
)
2462 * Activate a pending GO Negotiation/Invite flow if a received Probe
2463 * Request frame is from an expected peer. Some devices may share the
2464 * same address for P2P and non-P2P STA running simultaneously. The
2465 * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
2466 * return values verified above ensure we are handling a Probe Request
2467 * frame from a P2P peer.
2469 if ((p2p
->state
== P2P_CONNECT
|| p2p
->state
== P2P_CONNECT_LISTEN
) &&
2471 os_memcmp(addr
, p2p
->go_neg_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2473 !(p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
2474 /* Received a Probe Request from GO Negotiation peer */
2475 p2p_dbg(p2p
, "Found GO Negotiation peer - try to start GO negotiation from timeout");
2476 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2477 eloop_register_timeout(0, 0, p2p_go_neg_start
, p2p
, NULL
);
2481 if ((p2p
->state
== P2P_INVITE
|| p2p
->state
== P2P_INVITE_LISTEN
) &&
2483 (p2p
->invite_peer
->flags
& P2P_DEV_WAIT_INV_REQ_ACK
) &&
2484 os_memcmp(addr
, p2p
->invite_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2486 /* Received a Probe Request from Invite peer */
2487 p2p_dbg(p2p
, "Found Invite peer - try to start Invite from timeout");
2488 eloop_cancel_timeout(p2p_invite_start
, p2p
, NULL
);
2489 eloop_register_timeout(0, 0, p2p_invite_start
, p2p
, NULL
);
2497 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data
*p2p
, const u8
*bssid
,
2498 u8
*buf
, size_t len
, struct wpabuf
*p2p_ie
)
2505 struct p2p_message msg
;
2508 return 0; /* WLAN AP is not a P2P manager */
2510 os_memset(&msg
, 0, sizeof(msg
));
2511 if (p2p_parse_p2p_ie(p2p_ie
, &msg
) < 0)
2514 p2p_dbg(p2p
, "BSS P2P manageability %s",
2515 msg
.manageability
? "enabled" : "disabled");
2517 if (!msg
.manageability
)
2521 * (Re)Association Request - P2P IE
2522 * P2P Capability attribute (shall be present)
2523 * P2P Interface attribute (present if concurrent device and
2524 * P2P Management is enabled)
2526 tmp
= wpabuf_alloc(200);
2530 lpos
= p2p_buf_add_ie_hdr(tmp
);
2532 if (p2p
->num_groups
> 0) {
2533 group_capab
|= P2P_GROUP_CAPAB_GROUP_OWNER
;
2534 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2535 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
) &&
2537 group_capab
|= P2P_GROUP_CAPAB_CROSS_CONN
;
2539 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, group_capab
);
2540 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2541 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
))
2542 p2p_buf_add_p2p_interface(tmp
, p2p
);
2543 p2p_buf_update_ie_hdr(tmp
, lpos
);
2545 tmplen
= wpabuf_len(tmp
);
2549 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2558 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
2559 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
)
2563 struct p2p_device
*peer
;
2569 return p2p_assoc_req_ie_wlan_ap(p2p
, bssid
, buf
, len
, p2p_ie
);
2571 #ifdef CONFIG_WIFI_DISPLAY
2572 if (p2p
->wfd_ie_assoc_req
)
2573 extra
= wpabuf_len(p2p
->wfd_ie_assoc_req
);
2574 #endif /* CONFIG_WIFI_DISPLAY */
2576 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2577 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2580 * (Re)Association Request - P2P IE
2581 * P2P Capability attribute (shall be present)
2582 * Extended Listen Timing (may be present)
2583 * P2P Device Info attribute (shall be present)
2585 tmp
= wpabuf_alloc(200 + extra
);
2589 #ifdef CONFIG_WIFI_DISPLAY
2590 if (p2p
->wfd_ie_assoc_req
)
2591 wpabuf_put_buf(tmp
, p2p
->wfd_ie_assoc_req
);
2592 #endif /* CONFIG_WIFI_DISPLAY */
2594 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2596 p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2598 peer
= bssid
? p2p_get_device(p2p
, bssid
) : NULL
;
2600 lpos
= p2p_buf_add_ie_hdr(tmp
);
2601 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, 0);
2602 if (p2p
->ext_listen_interval
)
2603 p2p_buf_add_ext_listen_timing(tmp
, p2p
->ext_listen_period
,
2604 p2p
->ext_listen_interval
);
2605 p2p_buf_add_device_info(tmp
, p2p
, peer
);
2606 p2p_buf_update_ie_hdr(tmp
, lpos
);
2608 tmplen
= wpabuf_len(tmp
);
2612 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2621 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
)
2623 struct wpabuf
*p2p_ie
;
2626 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, P2P_IE_VENDOR_TYPE
);
2630 ret
= p2p_attr_text(p2p_ie
, buf
, end
);
2631 wpabuf_free(p2p_ie
);
2636 struct p2ps_advertisement
*
2637 p2p_service_p2ps_id(struct p2p_data
*p2p
, u32 adv_id
)
2639 struct p2ps_advertisement
*adv_data
;
2644 adv_data
= p2p
->p2ps_adv_list
;
2646 if (adv_data
->id
== adv_id
)
2648 adv_data
= adv_data
->next
;
2655 int p2p_service_del_asp(struct p2p_data
*p2p
, u32 adv_id
)
2657 struct p2ps_advertisement
*adv_data
;
2658 struct p2ps_advertisement
**prior
;
2663 adv_data
= p2p
->p2ps_adv_list
;
2664 prior
= &p2p
->p2ps_adv_list
;
2666 if (adv_data
->id
== adv_id
) {
2667 p2p_dbg(p2p
, "Delete ASP adv_id=0x%x", adv_id
);
2668 *prior
= adv_data
->next
;
2672 prior
= &adv_data
->next
;
2673 adv_data
= adv_data
->next
;
2680 int p2p_service_add_asp(struct p2p_data
*p2p
, int auto_accept
, u32 adv_id
,
2681 const char *adv_str
, u8 svc_state
, u16 config_methods
,
2682 const char *svc_info
, const u8
*cpt_priority
)
2684 struct p2ps_advertisement
*adv_data
, *tmp
, **prev
;
2685 u8 buf
[P2PS_HASH_LEN
];
2686 size_t adv_data_len
, adv_len
, info_len
= 0;
2689 if (!p2p
|| !adv_str
|| !adv_str
[0] || !cpt_priority
)
2692 if (!(config_methods
& p2p
->cfg
->config_methods
)) {
2693 p2p_dbg(p2p
, "Config methods not supported svc: 0x%x dev: 0x%x",
2694 config_methods
, p2p
->cfg
->config_methods
);
2698 if (!p2ps_gen_hash(p2p
, adv_str
, buf
))
2702 info_len
= os_strlen(svc_info
);
2703 adv_len
= os_strlen(adv_str
);
2704 adv_data_len
= sizeof(struct p2ps_advertisement
) + adv_len
+ 1 +
2707 adv_data
= os_zalloc(adv_data_len
);
2711 os_memcpy(adv_data
->hash
, buf
, P2PS_HASH_LEN
);
2712 adv_data
->id
= adv_id
;
2713 adv_data
->state
= svc_state
;
2714 adv_data
->config_methods
= config_methods
& p2p
->cfg
->config_methods
;
2715 adv_data
->auto_accept
= (u8
) auto_accept
;
2716 os_memcpy(adv_data
->svc_name
, adv_str
, adv_len
);
2718 for (i
= 0; cpt_priority
[i
] && i
< P2PS_FEATURE_CAPAB_CPT_MAX
; i
++) {
2719 adv_data
->cpt_priority
[i
] = cpt_priority
[i
];
2720 adv_data
->cpt_mask
|= cpt_priority
[i
];
2723 if (svc_info
&& info_len
) {
2724 adv_data
->svc_info
= &adv_data
->svc_name
[adv_len
+ 1];
2725 os_memcpy(adv_data
->svc_info
, svc_info
, info_len
);
2729 * Group Advertisements by service string. They do not need to be
2730 * sorted, but groups allow easier Probe Response instance grouping
2732 tmp
= p2p
->p2ps_adv_list
;
2733 prev
= &p2p
->p2ps_adv_list
;
2735 if (tmp
->id
== adv_data
->id
) {
2736 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) != 0) {
2740 adv_data
->next
= tmp
->next
;
2745 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) == 0) {
2746 adv_data
->next
= tmp
->next
;
2747 tmp
->next
= adv_data
;
2755 /* No svc_name match found */
2756 adv_data
->next
= p2p
->p2ps_adv_list
;
2757 p2p
->p2ps_adv_list
= adv_data
;
2761 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
2762 adv_id
, adv_data
->config_methods
, svc_state
, adv_str
,
2763 adv_data
->cpt_mask
);
2769 void p2p_service_flush_asp(struct p2p_data
*p2p
)
2771 struct p2ps_advertisement
*adv
, *prev
;
2776 adv
= p2p
->p2ps_adv_list
;
2783 p2p
->p2ps_adv_list
= NULL
;
2784 p2p_dbg(p2p
, "All ASP advertisements flushed");
2788 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
)
2790 struct p2p_message msg
;
2792 os_memset(&msg
, 0, sizeof(msg
));
2793 if (p2p_parse_p2p_ie(p2p_ie
, &msg
))
2796 if (msg
.p2p_device_addr
) {
2797 os_memcpy(dev_addr
, msg
.p2p_device_addr
, ETH_ALEN
);
2799 } else if (msg
.device_id
) {
2800 os_memcpy(dev_addr
, msg
.device_id
, ETH_ALEN
);
2807 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
)
2809 struct wpabuf
*p2p_ie
;
2812 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
,
2813 P2P_IE_VENDOR_TYPE
);
2816 ret
= p2p_parse_dev_addr_in_p2p_ie(p2p_ie
, dev_addr
);
2817 wpabuf_free(p2p_ie
);
2822 static void p2p_clear_go_neg(struct p2p_data
*p2p
)
2824 p2p
->go_neg_peer
= NULL
;
2825 p2p_clear_timeout(p2p
);
2826 p2p_set_state(p2p
, P2P_IDLE
);
2830 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
)
2832 if (p2p
->go_neg_peer
== NULL
) {
2833 p2p_dbg(p2p
, "No pending Group Formation - ignore WPS registration success notification");
2834 return; /* No pending Group Formation */
2837 if (os_memcmp(mac_addr
, p2p
->go_neg_peer
->intended_addr
, ETH_ALEN
) !=
2839 p2p_dbg(p2p
, "Ignore WPS registration success notification for "
2840 MACSTR
" (GO Negotiation peer " MACSTR
")",
2842 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2843 return; /* Ignore unexpected peer address */
2846 p2p_dbg(p2p
, "Group Formation completed successfully with " MACSTR
,
2849 p2p_clear_go_neg(p2p
);
2853 void p2p_group_formation_failed(struct p2p_data
*p2p
)
2855 if (p2p
->go_neg_peer
== NULL
) {
2856 p2p_dbg(p2p
, "No pending Group Formation - ignore group formation failure notification");
2857 return; /* No pending Group Formation */
2860 p2p_dbg(p2p
, "Group Formation failed with " MACSTR
,
2861 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2863 p2p_clear_go_neg(p2p
);
2867 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
)
2869 struct p2p_data
*p2p
;
2871 if (cfg
->max_peers
< 1 ||
2872 cfg
->passphrase_len
< 8 || cfg
->passphrase_len
> 63)
2875 p2p
= os_zalloc(sizeof(*p2p
) + sizeof(*cfg
));
2878 p2p
->cfg
= (struct p2p_config
*) (p2p
+ 1);
2879 os_memcpy(p2p
->cfg
, cfg
, sizeof(*cfg
));
2881 p2p
->cfg
->dev_name
= os_strdup(cfg
->dev_name
);
2882 if (cfg
->manufacturer
)
2883 p2p
->cfg
->manufacturer
= os_strdup(cfg
->manufacturer
);
2884 if (cfg
->model_name
)
2885 p2p
->cfg
->model_name
= os_strdup(cfg
->model_name
);
2886 if (cfg
->model_number
)
2887 p2p
->cfg
->model_number
= os_strdup(cfg
->model_number
);
2888 if (cfg
->serial_number
)
2889 p2p
->cfg
->serial_number
= os_strdup(cfg
->serial_number
);
2890 if (cfg
->pref_chan
) {
2891 p2p
->cfg
->pref_chan
= os_malloc(cfg
->num_pref_chan
*
2892 sizeof(struct p2p_channel
));
2893 if (p2p
->cfg
->pref_chan
) {
2894 os_memcpy(p2p
->cfg
->pref_chan
, cfg
->pref_chan
,
2895 cfg
->num_pref_chan
*
2896 sizeof(struct p2p_channel
));
2898 p2p
->cfg
->num_pref_chan
= 0;
2901 p2ps_gen_hash(p2p
, P2PS_WILD_HASH_STR
, p2p
->wild_card_hash
);
2903 p2p
->min_disc_int
= 1;
2904 p2p
->max_disc_int
= 3;
2905 p2p
->max_disc_tu
= -1;
2907 if (os_get_random(&p2p
->next_tie_breaker
, 1) < 0)
2908 p2p
->next_tie_breaker
= 0;
2909 p2p
->next_tie_breaker
&= 0x01;
2910 if (cfg
->sd_request
)
2911 p2p
->dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
2912 p2p
->dev_capab
|= P2P_DEV_CAPAB_INVITATION_PROCEDURE
;
2913 if (cfg
->concurrent_operations
)
2914 p2p
->dev_capab
|= P2P_DEV_CAPAB_CONCURRENT_OPER
;
2915 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
2917 dl_list_init(&p2p
->devices
);
2919 p2p
->go_timeout
= 100;
2920 p2p
->client_timeout
= 20;
2921 p2p
->num_p2p_sd_queries
= 0;
2923 p2p_dbg(p2p
, "initialized");
2924 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
2925 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
2931 void p2p_deinit(struct p2p_data
*p2p
)
2933 #ifdef CONFIG_WIFI_DISPLAY
2934 wpabuf_free(p2p
->wfd_ie_beacon
);
2935 wpabuf_free(p2p
->wfd_ie_probe_req
);
2936 wpabuf_free(p2p
->wfd_ie_probe_resp
);
2937 wpabuf_free(p2p
->wfd_ie_assoc_req
);
2938 wpabuf_free(p2p
->wfd_ie_invitation
);
2939 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
2940 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
2941 wpabuf_free(p2p
->wfd_ie_go_neg
);
2942 wpabuf_free(p2p
->wfd_dev_info
);
2943 wpabuf_free(p2p
->wfd_assoc_bssid
);
2944 wpabuf_free(p2p
->wfd_coupled_sink_info
);
2945 #endif /* CONFIG_WIFI_DISPLAY */
2947 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2948 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2949 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
2951 p2p_free_req_dev_types(p2p
);
2952 os_free(p2p
->cfg
->dev_name
);
2953 os_free(p2p
->cfg
->manufacturer
);
2954 os_free(p2p
->cfg
->model_name
);
2955 os_free(p2p
->cfg
->model_number
);
2956 os_free(p2p
->cfg
->serial_number
);
2957 os_free(p2p
->cfg
->pref_chan
);
2958 os_free(p2p
->groups
);
2959 p2ps_prov_free(p2p
);
2960 wpabuf_free(p2p
->sd_resp
);
2961 os_free(p2p
->after_scan_tx
);
2962 p2p_remove_wps_vendor_extensions(p2p
);
2963 os_free(p2p
->no_go_freq
.range
);
2964 p2p_service_flush_asp(p2p
);
2970 void p2p_flush(struct p2p_data
*p2p
)
2972 struct p2p_device
*dev
, *prev
;
2974 p2p_ext_listen(p2p
, 0, 0);
2976 dl_list_for_each_safe(dev
, prev
, &p2p
->devices
, struct p2p_device
,
2978 dl_list_del(&dev
->list
);
2979 p2p_device_free(p2p
, dev
);
2981 p2p_free_sd_queries(p2p
);
2982 os_free(p2p
->after_scan_tx
);
2983 p2p
->after_scan_tx
= NULL
;
2988 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
)
2990 struct p2p_device
*dev
;
2992 dev
= p2p_get_device(p2p
, addr
);
2996 p2p_dbg(p2p
, "Unauthorizing " MACSTR
, MAC2STR(addr
));
2998 if (p2p
->go_neg_peer
== dev
) {
2999 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
3000 p2p
->go_neg_peer
= NULL
;
3003 dev
->wps_method
= WPS_NOT_READY
;
3005 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
3006 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
3008 /* Check if after_scan_tx is for this peer. If so free it */
3009 if (p2p
->after_scan_tx
&&
3010 os_memcmp(addr
, p2p
->after_scan_tx
->dst
, ETH_ALEN
) == 0) {
3011 os_free(p2p
->after_scan_tx
);
3012 p2p
->after_scan_tx
= NULL
;
3019 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
)
3021 os_free(p2p
->cfg
->dev_name
);
3023 p2p
->cfg
->dev_name
= os_strdup(dev_name
);
3024 if (p2p
->cfg
->dev_name
== NULL
)
3027 p2p
->cfg
->dev_name
= NULL
;
3032 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
)
3034 os_free(p2p
->cfg
->manufacturer
);
3035 p2p
->cfg
->manufacturer
= NULL
;
3037 p2p
->cfg
->manufacturer
= os_strdup(manufacturer
);
3038 if (p2p
->cfg
->manufacturer
== NULL
)
3046 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
)
3048 os_free(p2p
->cfg
->model_name
);
3049 p2p
->cfg
->model_name
= NULL
;
3051 p2p
->cfg
->model_name
= os_strdup(model_name
);
3052 if (p2p
->cfg
->model_name
== NULL
)
3060 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
)
3062 os_free(p2p
->cfg
->model_number
);
3063 p2p
->cfg
->model_number
= NULL
;
3065 p2p
->cfg
->model_number
= os_strdup(model_number
);
3066 if (p2p
->cfg
->model_number
== NULL
)
3074 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
)
3076 os_free(p2p
->cfg
->serial_number
);
3077 p2p
->cfg
->serial_number
= NULL
;
3078 if (serial_number
) {
3079 p2p
->cfg
->serial_number
= os_strdup(serial_number
);
3080 if (p2p
->cfg
->serial_number
== NULL
)
3088 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
)
3090 p2p
->cfg
->config_methods
= config_methods
;
3094 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
)
3096 os_memcpy(p2p
->cfg
->uuid
, uuid
, 16);
3100 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
)
3102 os_memcpy(p2p
->cfg
->pri_dev_type
, pri_dev_type
, 8);
3107 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
3108 size_t num_dev_types
)
3110 if (num_dev_types
> P2P_SEC_DEVICE_TYPES
)
3111 num_dev_types
= P2P_SEC_DEVICE_TYPES
;
3112 p2p
->cfg
->num_sec_dev_types
= num_dev_types
;
3113 os_memcpy(p2p
->cfg
->sec_dev_type
, dev_types
, num_dev_types
* 8);
3118 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
)
3122 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3123 wpabuf_free(p2p
->wps_vendor_ext
[i
]);
3124 p2p
->wps_vendor_ext
[i
] = NULL
;
3129 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
3130 const struct wpabuf
*vendor_ext
)
3134 if (vendor_ext
== NULL
)
3137 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3138 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3141 if (i
>= P2P_MAX_WPS_VENDOR_EXT
)
3144 p2p
->wps_vendor_ext
[i
] = wpabuf_dup(vendor_ext
);
3145 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3152 int p2p_set_country(struct p2p_data
*p2p
, const char *country
)
3154 os_memcpy(p2p
->cfg
->country
, country
, 3);
3159 static int p2p_pre_find_operation(struct p2p_data
*p2p
, struct p2p_device
*dev
)
3161 if (dev
->sd_pending_bcast_queries
== 0) {
3162 /* Initialize with total number of registered broadcast
3164 dev
->sd_pending_bcast_queries
= p2p
->num_p2p_sd_queries
;
3167 if (p2p_start_sd(p2p
, dev
) == 0)
3170 if (dev
->req_config_methods
&&
3171 !(dev
->flags
& P2P_DEV_PD_FOR_JOIN
)) {
3172 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3173 MACSTR
" (config methods 0x%x)",
3174 MAC2STR(dev
->info
.p2p_device_addr
),
3175 dev
->req_config_methods
);
3176 if (p2p_send_prov_disc_req(p2p
, dev
, 0, 0) == 0)
3184 void p2p_continue_find(struct p2p_data
*p2p
)
3186 struct p2p_device
*dev
;
3189 p2p_set_state(p2p
, P2P_SEARCH
);
3191 /* Continue from the device following the last iteration */
3193 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3194 if (dev
== p2p
->last_p2p_find_oper
) {
3200 if (p2p_pre_find_operation(p2p
, dev
) > 0) {
3201 p2p
->last_p2p_find_oper
= dev
;
3207 * Wrap around to the beginning of the list and continue until the last
3210 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3211 if (p2p_pre_find_operation(p2p
, dev
) > 0) {
3212 p2p
->last_p2p_find_oper
= dev
;
3215 if (dev
== p2p
->last_p2p_find_oper
)
3219 p2p_listen_in_find(p2p
, 1);
3223 static void p2p_sd_cb(struct p2p_data
*p2p
, int success
)
3225 p2p_dbg(p2p
, "Service Discovery Query TX callback: success=%d",
3227 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3231 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3232 p2p
->sd_peer
= NULL
;
3233 if (p2p
->state
!= P2P_IDLE
)
3234 p2p_continue_find(p2p
);
3238 if (p2p
->sd_peer
== NULL
) {
3239 p2p_dbg(p2p
, "No SD peer entry known");
3240 if (p2p
->state
!= P2P_IDLE
)
3241 p2p_continue_find(p2p
);
3245 if (p2p
->sd_query
&& p2p
->sd_query
->for_all_peers
) {
3246 /* Update the pending broadcast SD query count for this device
3248 p2p
->sd_peer
->sd_pending_bcast_queries
--;
3251 * If there are no pending broadcast queries for this device,
3252 * mark it as done (-1).
3254 if (p2p
->sd_peer
->sd_pending_bcast_queries
== 0)
3255 p2p
->sd_peer
->sd_pending_bcast_queries
= -1;
3258 /* Wait for response from the peer */
3259 p2p_set_state(p2p
, P2P_SD_DURING_FIND
);
3260 p2p_set_timeout(p2p
, 0, 200000);
3265 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3266 * @p2p: P2P module context from p2p_init()
3268 static void p2p_retry_pd(struct p2p_data
*p2p
)
3270 struct p2p_device
*dev
;
3273 * Retry the prov disc req attempt only for the peer that the user had
3277 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3278 if (os_memcmp(p2p
->pending_pd_devaddr
,
3279 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
3281 if (!dev
->req_config_methods
)
3284 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3285 MACSTR
" (config methods 0x%x)",
3286 MAC2STR(dev
->info
.p2p_device_addr
),
3287 dev
->req_config_methods
);
3288 p2p_send_prov_disc_req(p2p
, dev
,
3289 dev
->flags
& P2P_DEV_PD_FOR_JOIN
,
3290 p2p
->pd_force_freq
);
3296 static void p2p_prov_disc_cb(struct p2p_data
*p2p
, int success
)
3298 p2p_dbg(p2p
, "Provision Discovery Request TX callback: success=%d",
3302 * Postpone resetting the pending action state till after we actually
3303 * time out. This allows us to take some action like notifying any
3304 * interested parties about no response to the request.
3306 * When the timer (below) goes off we check in IDLE, SEARCH, or
3307 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3308 * requests in, if this was still pending and then raise notification.
3312 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3314 if (p2p
->user_initiated_pd
&&
3315 (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_LISTEN_ONLY
))
3317 /* Retry request from timeout to avoid busy loops */
3318 p2p
->pending_action_state
= P2P_PENDING_PD
;
3319 p2p_set_timeout(p2p
, 0, 50000);
3320 } else if (p2p
->state
!= P2P_IDLE
)
3321 p2p_continue_find(p2p
);
3322 else if (p2p
->user_initiated_pd
) {
3323 p2p
->pending_action_state
= P2P_PENDING_PD
;
3324 p2p_set_timeout(p2p
, 0, 300000);
3330 * If after PD Request the peer doesn't expect to receive PD Response
3331 * the PD Request ACK indicates a completion of the current PD. This
3332 * happens only on the advertiser side sending the follow-on PD Request
3333 * with the status different than 12 (Success: accepted by user).
3335 if (p2p
->p2ps_prov
&& !p2p
->p2ps_prov
->pd_seeker
&&
3336 p2p
->p2ps_prov
->status
!= P2P_SC_SUCCESS_DEFERRED
) {
3337 p2p_dbg(p2p
, "P2PS PD completion on Follow-on PD Request ACK");
3339 if (p2p
->send_action_in_progress
) {
3340 p2p
->send_action_in_progress
= 0;
3341 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3344 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3346 if (p2p
->cfg
->p2ps_prov_complete
) {
3347 p2p
->cfg
->p2ps_prov_complete(
3349 p2p
->p2ps_prov
->status
,
3350 p2p
->p2ps_prov
->adv_mac
,
3351 p2p
->p2ps_prov
->adv_mac
,
3352 p2p
->p2ps_prov
->session_mac
,
3353 NULL
, p2p
->p2ps_prov
->adv_id
,
3354 p2p
->p2ps_prov
->session_id
,
3355 0, 0, NULL
, 0, 0, 0,
3359 if (p2p
->user_initiated_pd
)
3360 p2p_reset_pending_pd(p2p
);
3362 p2ps_prov_free(p2p
);
3367 * This postponing, of resetting pending_action_state, needs to be
3368 * done only for user initiated PD requests and not internal ones.
3370 if (p2p
->user_initiated_pd
)
3371 p2p
->pending_action_state
= P2P_PENDING_PD
;
3373 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3375 /* Wait for response from the peer */
3376 if (p2p
->state
== P2P_SEARCH
)
3377 p2p_set_state(p2p
, P2P_PD_DURING_FIND
);
3378 p2p_set_timeout(p2p
, 0, 200000);
3382 static int p2p_check_after_scan_tx_continuation(struct p2p_data
*p2p
)
3384 if (p2p
->after_scan_tx_in_progress
) {
3385 p2p
->after_scan_tx_in_progress
= 0;
3386 if (p2p
->start_after_scan
!= P2P_AFTER_SCAN_NOTHING
&&
3387 p2p_run_after_scan(p2p
))
3389 if (p2p
->state
== P2P_SEARCH
) {
3390 p2p_dbg(p2p
, "Continue find after after_scan_tx completion");
3391 p2p_continue_find(p2p
);
3399 static void p2p_prov_disc_resp_cb(struct p2p_data
*p2p
, int success
)
3401 p2p_dbg(p2p
, "Provision Discovery Response TX callback: success=%d",
3404 if (p2p
->send_action_in_progress
) {
3405 p2p
->send_action_in_progress
= 0;
3406 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3409 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3412 goto continue_search
;
3414 if (!p2p
->cfg
->prov_disc_resp_cb
||
3415 p2p
->cfg
->prov_disc_resp_cb(p2p
->cfg
->cb_ctx
) < 1)
3416 goto continue_search
;
3419 "Post-Provision Discovery operations started - do not try to continue other P2P operations");
3423 p2p_check_after_scan_tx_continuation(p2p
);
3427 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
3428 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
3431 if (os_reltime_before(rx_time
, &p2p
->find_start
)) {
3433 * The driver may have cached (e.g., in cfg80211 BSS table) the
3434 * scan results for relatively long time. To avoid reporting
3435 * stale information, update P2P peers only based on results
3436 * that have based on frames received after the last p2p_find
3437 * operation was started.
3439 p2p_dbg(p2p
, "Ignore old scan result for " MACSTR
3440 " (rx_time=%u.%06u)",
3441 MAC2STR(bssid
), (unsigned int) rx_time
->sec
,
3442 (unsigned int) rx_time
->usec
);
3446 p2p_add_device(p2p
, bssid
, freq
, rx_time
, level
, ies
, ies_len
, 1);
3452 void p2p_scan_res_handled(struct p2p_data
*p2p
)
3454 if (!p2p
->p2p_scan_running
) {
3455 p2p_dbg(p2p
, "p2p_scan was not running, but scan results received");
3457 p2p
->p2p_scan_running
= 0;
3458 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
3460 if (p2p_run_after_scan(p2p
))
3462 if (p2p
->state
== P2P_SEARCH
)
3463 p2p_continue_find(p2p
);
3467 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
)
3472 #ifdef CONFIG_WIFI_DISPLAY
3473 if (p2p
->wfd_ie_probe_req
)
3474 wpabuf_put_buf(ies
, p2p
->wfd_ie_probe_req
);
3475 #endif /* CONFIG_WIFI_DISPLAY */
3477 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3479 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3481 len
= p2p_buf_add_ie_hdr(ies
);
3483 dev_capab
= p2p
->dev_capab
& ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3485 /* P2PS requires Probe Request frames to include SD bit */
3486 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3487 dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
3489 p2p_buf_add_capability(ies
, dev_capab
, 0);
3492 p2p_buf_add_device_id(ies
, dev_id
);
3493 if (p2p
->cfg
->reg_class
&& p2p
->cfg
->channel
)
3494 p2p_buf_add_listen_channel(ies
, p2p
->cfg
->country
,
3495 p2p
->cfg
->reg_class
,
3497 if (p2p
->ext_listen_interval
)
3498 p2p_buf_add_ext_listen_timing(ies
, p2p
->ext_listen_period
,
3499 p2p
->ext_listen_interval
);
3501 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3502 p2p_buf_add_service_hash(ies
, p2p
);
3504 /* TODO: p2p_buf_add_operating_channel() if GO */
3505 p2p_buf_update_ie_hdr(ies
, len
);
3509 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
)
3513 #ifdef CONFIG_WIFI_DISPLAY
3514 if (p2p
&& p2p
->wfd_ie_probe_req
)
3515 len
+= wpabuf_len(p2p
->wfd_ie_probe_req
);
3516 #endif /* CONFIG_WIFI_DISPLAY */
3518 if (p2p
&& p2p
->vendor_elem
&&
3519 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3520 len
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3526 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
)
3528 return p2p_attr_text(p2p_ie
, buf
, end
);
3532 static void p2p_go_neg_req_cb(struct p2p_data
*p2p
, int success
)
3534 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3537 p2p_dbg(p2p
, "GO Negotiation Request TX callback: success=%d", success
);
3540 p2p_dbg(p2p
, "No pending GO Negotiation");
3545 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
3546 p2p_set_state(p2p
, P2P_IDLE
);
3549 } else if (dev
->go_neg_req_sent
) {
3550 /* Cancel the increment from p2p_connect_send() on failure */
3551 dev
->go_neg_req_sent
--;
3555 (dev
->info
.dev_capab
& P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
) &&
3556 !is_zero_ether_addr(dev
->member_in_go_dev
)) {
3557 p2p_dbg(p2p
, "Peer " MACSTR
" did not acknowledge request - try to use device discoverability through its GO",
3558 MAC2STR(dev
->info
.p2p_device_addr
));
3559 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3560 p2p_send_dev_disc_req(p2p
, dev
);
3565 * Use P2P find, if needed, to find the other device from its listen
3568 p2p_set_state(p2p
, P2P_CONNECT
);
3569 timeout
= success
? 500000 : 100000;
3570 if (!success
&& p2p
->go_neg_peer
&&
3571 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
)) {
3574 * Peer is expected to wait our response and we will skip the
3575 * listen phase. Add some randomness to the wait time here to
3576 * make it less likely to hit cases where we could end up in
3577 * sync with peer not listening.
3579 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
3581 timeout
+= r
% 100000;
3583 p2p_set_timeout(p2p
, 0, timeout
);
3587 static void p2p_go_neg_resp_cb(struct p2p_data
*p2p
, int success
)
3589 p2p_dbg(p2p
, "GO Negotiation Response TX callback: success=%d",
3591 if (!p2p
->go_neg_peer
&& p2p
->state
== P2P_PROVISIONING
) {
3592 p2p_dbg(p2p
, "Ignore TX callback event - GO Negotiation is not running anymore");
3595 p2p_set_state(p2p
, P2P_CONNECT
);
3596 p2p_set_timeout(p2p
, 0, 500000);
3600 static void p2p_go_neg_resp_failure_cb(struct p2p_data
*p2p
, int success
,
3603 p2p_dbg(p2p
, "GO Negotiation Response (failure) TX callback: success=%d", success
);
3604 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->status
!= P2P_SC_SUCCESS
) {
3605 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
->status
);
3610 struct p2p_device
*dev
;
3611 dev
= p2p_get_device(p2p
, addr
);
3613 dev
->status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
)
3614 dev
->flags
|= P2P_DEV_PEER_WAITING_RESPONSE
;
3617 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
3618 p2p_continue_find(p2p
);
3622 static void p2p_go_neg_conf_cb(struct p2p_data
*p2p
,
3623 enum p2p_send_action_result result
)
3625 struct p2p_device
*dev
;
3627 p2p_dbg(p2p
, "GO Negotiation Confirm TX callback: result=%d", result
);
3628 if (result
== P2P_SEND_ACTION_FAILED
) {
3629 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3630 p2p_go_neg_failed(p2p
, -1);
3634 dev
= p2p
->go_neg_peer
;
3636 if (result
== P2P_SEND_ACTION_NO_ACK
) {
3638 * Retry GO Negotiation Confirmation
3639 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3640 * ACK for confirmation.
3642 if (dev
&& dev
->go_neg_conf
&&
3643 dev
->go_neg_conf_sent
<= P2P_GO_NEG_CNF_MAX_RETRY_COUNT
) {
3644 p2p_dbg(p2p
, "GO Negotiation Confirm retry %d",
3645 dev
->go_neg_conf_sent
);
3646 p2p
->pending_action_state
= P2P_PENDING_GO_NEG_CONFIRM
;
3647 if (p2p_send_action(p2p
, dev
->go_neg_conf_freq
,
3648 dev
->info
.p2p_device_addr
,
3650 dev
->info
.p2p_device_addr
,
3651 wpabuf_head(dev
->go_neg_conf
),
3652 wpabuf_len(dev
->go_neg_conf
), 0) >=
3654 dev
->go_neg_conf_sent
++;
3657 p2p_dbg(p2p
, "Failed to re-send Action frame");
3660 * Continue with the assumption that the first attempt
3661 * went through and just the ACK frame was lost.
3666 * It looks like the TX status for GO Negotiation Confirm is
3667 * often showing failure even when the peer has actually
3668 * received the frame. Since the peer may change channels
3669 * immediately after having received the frame, we may not see
3670 * an Ack for retries, so just dropping a single frame may
3671 * trigger this. To allow the group formation to succeed if the
3672 * peer did indeed receive the frame, continue regardless of
3675 p2p_dbg(p2p
, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
3678 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3683 p2p_go_complete(p2p
, dev
);
3687 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
3688 const u8
*src
, const u8
*bssid
,
3689 enum p2p_send_action_result result
)
3691 enum p2p_pending_action_state state
;
3694 p2p_dbg(p2p
, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
3695 " src=" MACSTR
" bssid=" MACSTR
" result=%d p2p_state=%s)",
3696 p2p
->pending_action_state
, freq
, MAC2STR(dst
), MAC2STR(src
),
3697 MAC2STR(bssid
), result
, p2p_state_txt(p2p
->state
));
3698 success
= result
== P2P_SEND_ACTION_SUCCESS
;
3699 state
= p2p
->pending_action_state
;
3700 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3702 case P2P_NO_PENDING_ACTION
:
3703 if (p2p
->send_action_in_progress
) {
3704 p2p
->send_action_in_progress
= 0;
3705 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3707 p2p_check_after_scan_tx_continuation(p2p
);
3709 case P2P_PENDING_GO_NEG_REQUEST
:
3710 p2p_go_neg_req_cb(p2p
, success
);
3712 case P2P_PENDING_GO_NEG_RESPONSE
:
3713 p2p_go_neg_resp_cb(p2p
, success
);
3715 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE
:
3716 p2p_go_neg_resp_failure_cb(p2p
, success
, dst
);
3718 case P2P_PENDING_GO_NEG_CONFIRM
:
3719 p2p_go_neg_conf_cb(p2p
, result
);
3721 case P2P_PENDING_SD
:
3722 p2p_sd_cb(p2p
, success
);
3724 case P2P_PENDING_PD
:
3725 p2p_prov_disc_cb(p2p
, success
);
3727 case P2P_PENDING_PD_RESPONSE
:
3728 p2p_prov_disc_resp_cb(p2p
, success
);
3730 case P2P_PENDING_INVITATION_REQUEST
:
3731 p2p_invitation_req_cb(p2p
, success
);
3733 case P2P_PENDING_INVITATION_RESPONSE
:
3734 p2p_invitation_resp_cb(p2p
, success
);
3736 case P2P_PENDING_DEV_DISC_REQUEST
:
3737 p2p_dev_disc_req_cb(p2p
, success
);
3739 case P2P_PENDING_DEV_DISC_RESPONSE
:
3740 p2p_dev_disc_resp_cb(p2p
, success
);
3742 case P2P_PENDING_GO_DISC_REQ
:
3743 p2p_go_disc_req_cb(p2p
, success
);
3747 p2p
->after_scan_tx_in_progress
= 0;
3751 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
3752 unsigned int duration
)
3754 if (freq
== p2p
->pending_client_disc_freq
) {
3755 p2p_dbg(p2p
, "Client discoverability remain-awake completed");
3756 p2p
->pending_client_disc_freq
= 0;
3760 if (freq
!= p2p
->pending_listen_freq
) {
3761 p2p_dbg(p2p
, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
3762 freq
, duration
, p2p
->pending_listen_freq
);
3766 p2p_dbg(p2p
, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
3767 p2p
->pending_listen_sec
, p2p
->pending_listen_usec
,
3768 p2p
->pending_listen_freq
);
3770 p2p
->drv_in_listen
= freq
;
3771 if (p2p
->pending_listen_sec
|| p2p
->pending_listen_usec
) {
3773 * Add 20 msec extra wait to avoid race condition with driver
3774 * remain-on-channel end event, i.e., give driver more time to
3775 * complete the operation before our timeout expires.
3777 p2p_set_timeout(p2p
, p2p
->pending_listen_sec
,
3778 p2p
->pending_listen_usec
+ 20000);
3781 p2p
->pending_listen_freq
= 0;
3785 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
)
3787 p2p_dbg(p2p
, "Driver ended Listen state (freq=%u)", freq
);
3788 p2p
->drv_in_listen
= 0;
3790 return 0; /* Internal timeout will trigger the next step */
3792 if (p2p
->state
== P2P_CONNECT_LISTEN
&& p2p
->go_neg_peer
) {
3793 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3794 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3795 p2p_go_neg_failed(p2p
, -1);
3799 p2p_set_state(p2p
, P2P_CONNECT
);
3800 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3802 } else if (p2p
->state
== P2P_SEARCH
) {
3803 if (p2p
->p2p_scan_running
) {
3805 * Search is already in progress. This can happen if
3806 * an Action frame RX is reported immediately after
3807 * the end of a remain-on-channel operation and the
3808 * response frame to that is sent using an offchannel
3809 * operation while in p2p_find. Avoid an attempt to
3810 * restart a scan here.
3812 p2p_dbg(p2p
, "p2p_scan already in progress - do not try to start a new one");
3815 if (p2p
->pending_listen_freq
) {
3817 * Better wait a bit if the driver is unable to start
3818 * offchannel operation for some reason. p2p_search()
3819 * will be started from internal timeout.
3821 p2p_dbg(p2p
, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3822 p2p_set_timeout(p2p
, 0, 100000);
3825 if (p2p
->search_delay
) {
3826 p2p_dbg(p2p
, "Delay search operation by %u ms",
3828 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
3829 (p2p
->search_delay
% 1000) * 1000);
3840 static void p2p_timeout_connect(struct p2p_data
*p2p
)
3842 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3843 if (p2p
->go_neg_peer
&&
3844 (p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
3845 p2p_dbg(p2p
, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
3846 p2p_go_neg_failed(p2p
, -1);
3849 if (p2p
->go_neg_peer
&&
3850 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
) &&
3851 p2p
->go_neg_peer
->connect_reqs
< 120) {
3852 p2p_dbg(p2p
, "Peer expected to wait our response - skip listen");
3853 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3856 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->oob_go_neg_freq
> 0) {
3857 p2p_dbg(p2p
, "Skip connect-listen since GO Neg channel known (OOB)");
3858 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3859 p2p_set_timeout(p2p
, 0, 30000);
3862 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3863 p2p_listen_in_find(p2p
, 0);
3867 static void p2p_timeout_connect_listen(struct p2p_data
*p2p
)
3869 if (p2p
->go_neg_peer
) {
3870 if (p2p
->drv_in_listen
) {
3871 p2p_dbg(p2p
, "Driver is still in Listen state; wait for it to complete");
3875 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3876 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3877 p2p_go_neg_failed(p2p
, -1);
3881 p2p_set_state(p2p
, P2P_CONNECT
);
3882 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3884 p2p_set_state(p2p
, P2P_IDLE
);
3888 static void p2p_timeout_wait_peer_connect(struct p2p_data
*p2p
)
3890 p2p_set_state(p2p
, P2P_WAIT_PEER_IDLE
);
3892 if (p2p
->cfg
->is_concurrent_session_active
&&
3893 p2p
->cfg
->is_concurrent_session_active(p2p
->cfg
->cb_ctx
))
3894 p2p_set_timeout(p2p
, 0, 500000);
3896 p2p_set_timeout(p2p
, 0, 200000);
3900 static void p2p_timeout_wait_peer_idle(struct p2p_data
*p2p
)
3902 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3905 p2p_dbg(p2p
, "Unknown GO Neg peer - stop GO Neg wait");
3909 p2p_dbg(p2p
, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
3910 p2p_set_state(p2p
, P2P_WAIT_PEER_CONNECT
);
3911 p2p_listen_in_find(p2p
, 0);
3915 static void p2p_timeout_sd_during_find(struct p2p_data
*p2p
)
3917 p2p_dbg(p2p
, "Service Discovery Query timeout");
3919 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3920 p2p
->sd_peer
= NULL
;
3922 p2p_continue_find(p2p
);
3926 static void p2p_timeout_prov_disc_during_find(struct p2p_data
*p2p
)
3928 p2p_dbg(p2p
, "Provision Discovery Request timeout");
3929 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3930 p2p_continue_find(p2p
);
3934 static void p2p_timeout_prov_disc_req(struct p2p_data
*p2p
)
3939 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3942 * For user initiated PD requests that we have not gotten any responses
3943 * for while in IDLE state, we retry them a couple of times before
3946 if (!p2p
->user_initiated_pd
)
3949 p2p_dbg(p2p
, "User initiated Provision Discovery Request timeout");
3951 if (p2p
->pd_retries
) {
3955 struct p2p_device
*dev
;
3958 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3959 if (os_memcmp(p2p
->pending_pd_devaddr
,
3960 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
3962 if (dev
->req_config_methods
&&
3963 (dev
->flags
& P2P_DEV_PD_FOR_JOIN
))
3967 if (p2p
->p2ps_prov
) {
3968 adv_id
= p2p
->p2ps_prov
->adv_id
;
3969 adv_mac
= p2p
->p2ps_prov
->adv_mac
;
3972 if (p2p
->cfg
->prov_disc_fail
)
3973 p2p
->cfg
->prov_disc_fail(p2p
->cfg
->cb_ctx
,
3974 p2p
->pending_pd_devaddr
,
3976 P2P_PROV_DISC_TIMEOUT_JOIN
:
3977 P2P_PROV_DISC_TIMEOUT
,
3978 adv_id
, adv_mac
, NULL
);
3979 p2p_reset_pending_pd(p2p
);
3984 static void p2p_timeout_invite(struct p2p_data
*p2p
)
3986 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3987 p2p_set_state(p2p
, P2P_INVITE_LISTEN
);
3988 if (p2p
->inv_role
== P2P_INVITE_ROLE_ACTIVE_GO
) {
3990 * Better remain on operating channel instead of listen channel
3991 * when running a group.
3993 p2p_dbg(p2p
, "Inviting in active GO role - wait on operating channel");
3994 p2p_set_timeout(p2p
, 0, 100000);
3997 p2p_listen_in_find(p2p
, 0);
4001 static void p2p_timeout_invite_listen(struct p2p_data
*p2p
)
4003 if (p2p
->invite_peer
&& p2p
->invite_peer
->invitation_reqs
< 100) {
4004 p2p_set_state(p2p
, P2P_INVITE
);
4005 p2p_invite_send(p2p
, p2p
->invite_peer
,
4006 p2p
->invite_go_dev_addr
, p2p
->invite_dev_pw_id
);
4008 if (p2p
->invite_peer
) {
4009 p2p_dbg(p2p
, "Invitation Request retry limit reached");
4010 if (p2p
->cfg
->invitation_result
)
4011 p2p
->cfg
->invitation_result(
4012 p2p
->cfg
->cb_ctx
, -1, NULL
, NULL
,
4013 p2p
->invite_peer
->info
.p2p_device_addr
,
4016 p2p_set_state(p2p
, P2P_IDLE
);
4021 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
)
4023 struct p2p_data
*p2p
= eloop_ctx
;
4025 p2p_dbg(p2p
, "Timeout (state=%s)", p2p_state_txt(p2p
->state
));
4028 if (p2p
->drv_in_listen
) {
4029 p2p_dbg(p2p
, "Driver is still in listen state - stop it");
4030 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
4033 switch (p2p
->state
) {
4035 /* Check if we timed out waiting for PD req */
4036 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4037 p2p_timeout_prov_disc_req(p2p
);
4040 /* Check if we timed out waiting for PD req */
4041 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4042 p2p_timeout_prov_disc_req(p2p
);
4043 if (p2p
->search_delay
&& !p2p
->in_search_delay
) {
4044 p2p_dbg(p2p
, "Delay search operation by %u ms",
4046 p2p
->in_search_delay
= 1;
4047 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
4048 (p2p
->search_delay
% 1000) * 1000);
4051 p2p
->in_search_delay
= 0;
4055 p2p_timeout_connect(p2p
);
4057 case P2P_CONNECT_LISTEN
:
4058 p2p_timeout_connect_listen(p2p
);
4062 case P2P_LISTEN_ONLY
:
4063 /* Check if we timed out waiting for PD req */
4064 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4065 p2p_timeout_prov_disc_req(p2p
);
4067 if (p2p
->ext_listen_only
) {
4068 p2p_dbg(p2p
, "Extended Listen Timing - Listen State completed");
4069 p2p
->ext_listen_only
= 0;
4070 p2p_set_state(p2p
, P2P_IDLE
);
4073 case P2P_WAIT_PEER_CONNECT
:
4074 p2p_timeout_wait_peer_connect(p2p
);
4076 case P2P_WAIT_PEER_IDLE
:
4077 p2p_timeout_wait_peer_idle(p2p
);
4079 case P2P_SD_DURING_FIND
:
4080 p2p_timeout_sd_during_find(p2p
);
4082 case P2P_PROVISIONING
:
4084 case P2P_PD_DURING_FIND
:
4085 p2p_timeout_prov_disc_during_find(p2p
);
4088 p2p_timeout_invite(p2p
);
4090 case P2P_INVITE_LISTEN
:
4091 p2p_timeout_invite_listen(p2p
);
4097 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
)
4099 struct p2p_device
*dev
;
4101 dev
= p2p_get_device(p2p
, peer_addr
);
4102 p2p_dbg(p2p
, "Local request to reject connection attempts by peer "
4103 MACSTR
, MAC2STR(peer_addr
));
4105 p2p_dbg(p2p
, "Peer " MACSTR
" unknown", MAC2STR(peer_addr
));
4108 dev
->status
= P2P_SC_FAIL_REJECTED_BY_USER
;
4109 dev
->flags
|= P2P_DEV_USER_REJECTED
;
4114 const char * p2p_wps_method_text(enum p2p_wps_method method
)
4119 case WPS_PIN_DISPLAY
:
4121 case WPS_PIN_KEYPAD
:
4135 static const char * p2p_go_state_text(enum p2p_go_state go_state
)
4150 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
4151 const u8
*addr
, int next
)
4153 struct p2p_device
*dev
;
4156 dev
= p2p_get_device(p2p
, addr
);
4158 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
4161 dev
= dl_list_first(&dev
->list
, struct p2p_device
, list
);
4162 if (&dev
->list
== &p2p
->devices
)
4173 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
4174 char *buf
, size_t buflen
)
4176 struct p2p_device
*dev
;
4179 struct os_reltime now
;
4184 dev
= (struct p2p_device
*) (((u8
*) info
) -
4185 offsetof(struct p2p_device
, info
));
4190 os_get_reltime(&now
);
4191 res
= os_snprintf(pos
, end
- pos
,
4195 "interface_addr=" MACSTR
"\n"
4196 "member_in_go_dev=" MACSTR
"\n"
4197 "member_in_go_iface=" MACSTR
"\n"
4198 "go_neg_req_sent=%d\n"
4201 "intended_addr=" MACSTR
"\n"
4204 "req_config_methods=0x%x\n"
4205 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
4207 "invitation_reqs=%u\n",
4208 (int) (now
.sec
- dev
->last_seen
.sec
),
4210 p2p_wps_method_text(dev
->wps_method
),
4211 MAC2STR(dev
->interface_addr
),
4212 MAC2STR(dev
->member_in_go_dev
),
4213 MAC2STR(dev
->member_in_go_iface
),
4214 dev
->go_neg_req_sent
,
4215 p2p_go_state_text(dev
->go_state
),
4217 MAC2STR(dev
->intended_addr
),
4218 dev
->country
[0] ? dev
->country
[0] : '_',
4219 dev
->country
[1] ? dev
->country
[1] : '_',
4221 dev
->req_config_methods
,
4222 dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
?
4223 "[PROBE_REQ_ONLY]" : "",
4224 dev
->flags
& P2P_DEV_REPORTED
? "[REPORTED]" : "",
4225 dev
->flags
& P2P_DEV_NOT_YET_READY
?
4226 "[NOT_YET_READY]" : "",
4227 dev
->flags
& P2P_DEV_PD_PEER_DISPLAY
?
4228 "[PD_PEER_DISPLAY]" : "",
4229 dev
->flags
& P2P_DEV_PD_PEER_KEYPAD
?
4230 "[PD_PEER_KEYPAD]" : "",
4231 dev
->flags
& P2P_DEV_PD_PEER_P2PS
?
4232 "[PD_PEER_P2PS]" : "",
4233 dev
->flags
& P2P_DEV_USER_REJECTED
?
4234 "[USER_REJECTED]" : "",
4235 dev
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
?
4236 "[PEER_WAITING_RESPONSE]" : "",
4237 dev
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
?
4238 "[PREFER_PERSISTENT_GROUP]" : "",
4239 dev
->flags
& P2P_DEV_WAIT_GO_NEG_RESPONSE
?
4240 "[WAIT_GO_NEG_RESPONSE]" : "",
4241 dev
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
?
4242 "[WAIT_GO_NEG_CONFIRM]" : "",
4243 dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
?
4244 "[GROUP_CLIENT_ONLY]" : "",
4245 dev
->flags
& P2P_DEV_FORCE_FREQ
?
4246 "[FORCE_FREQ]" : "",
4247 dev
->flags
& P2P_DEV_PD_FOR_JOIN
?
4248 "[PD_FOR_JOIN]" : "",
4249 dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
?
4250 "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
4252 dev
->invitation_reqs
);
4253 if (os_snprintf_error(end
- pos
, res
))
4257 if (dev
->ext_listen_period
) {
4258 res
= os_snprintf(pos
, end
- pos
,
4259 "ext_listen_period=%u\n"
4260 "ext_listen_interval=%u\n",
4261 dev
->ext_listen_period
,
4262 dev
->ext_listen_interval
);
4263 if (os_snprintf_error(end
- pos
, res
))
4268 if (dev
->oper_ssid_len
) {
4269 res
= os_snprintf(pos
, end
- pos
,
4271 wpa_ssid_txt(dev
->oper_ssid
,
4272 dev
->oper_ssid_len
));
4273 if (os_snprintf_error(end
- pos
, res
))
4278 #ifdef CONFIG_WIFI_DISPLAY
4279 if (dev
->info
.wfd_subelems
) {
4280 res
= os_snprintf(pos
, end
- pos
, "wfd_subelems=");
4281 if (os_snprintf_error(end
- pos
, res
))
4285 pos
+= wpa_snprintf_hex(pos
, end
- pos
,
4286 wpabuf_head(dev
->info
.wfd_subelems
),
4287 wpabuf_len(dev
->info
.wfd_subelems
));
4289 res
= os_snprintf(pos
, end
- pos
, "\n");
4290 if (os_snprintf_error(end
- pos
, res
))
4294 #endif /* CONFIG_WIFI_DISPLAY */
4300 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
)
4302 return p2p_get_device(p2p
, addr
) != NULL
;
4306 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
)
4309 p2p_dbg(p2p
, "Client discoverability enabled");
4310 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4312 p2p_dbg(p2p
, "Client discoverability disabled");
4313 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4318 static struct wpabuf
* p2p_build_presence_req(u32 duration1
, u32 interval1
,
4319 u32 duration2
, u32 interval2
)
4322 struct p2p_noa_desc desc1
, desc2
, *ptr1
= NULL
, *ptr2
= NULL
;
4325 req
= wpabuf_alloc(100);
4329 if (duration1
|| interval1
) {
4330 os_memset(&desc1
, 0, sizeof(desc1
));
4331 desc1
.count_type
= 1;
4332 desc1
.duration
= duration1
;
4333 desc1
.interval
= interval1
;
4336 if (duration2
|| interval2
) {
4337 os_memset(&desc2
, 0, sizeof(desc2
));
4338 desc2
.count_type
= 2;
4339 desc2
.duration
= duration2
;
4340 desc2
.interval
= interval2
;
4345 p2p_buf_add_action_hdr(req
, P2P_PRESENCE_REQ
, 1);
4346 len
= p2p_buf_add_ie_hdr(req
);
4347 p2p_buf_add_noa(req
, 0, 0, 0, ptr1
, ptr2
);
4348 p2p_buf_update_ie_hdr(req
, len
);
4354 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
4355 const u8
*own_interface_addr
, unsigned int freq
,
4356 u32 duration1
, u32 interval1
, u32 duration2
,
4361 p2p_dbg(p2p
, "Send Presence Request to GO " MACSTR
4362 " (own interface " MACSTR
") freq=%u dur1=%u int1=%u "
4364 MAC2STR(go_interface_addr
), MAC2STR(own_interface_addr
),
4365 freq
, duration1
, interval1
, duration2
, interval2
);
4367 req
= p2p_build_presence_req(duration1
, interval1
, duration2
,
4372 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4373 if (p2p_send_action(p2p
, freq
, go_interface_addr
, own_interface_addr
,
4375 wpabuf_head(req
), wpabuf_len(req
), 200) < 0) {
4376 p2p_dbg(p2p
, "Failed to send Action frame");
4384 static struct wpabuf
* p2p_build_presence_resp(u8 status
, const u8
*noa
,
4385 size_t noa_len
, u8 dialog_token
)
4387 struct wpabuf
*resp
;
4390 resp
= wpabuf_alloc(100 + noa_len
);
4394 p2p_buf_add_action_hdr(resp
, P2P_PRESENCE_RESP
, dialog_token
);
4395 len
= p2p_buf_add_ie_hdr(resp
);
4396 p2p_buf_add_status(resp
, status
);
4398 wpabuf_put_u8(resp
, P2P_ATTR_NOTICE_OF_ABSENCE
);
4399 wpabuf_put_le16(resp
, noa_len
);
4400 wpabuf_put_data(resp
, noa
, noa_len
);
4402 p2p_buf_add_noa(resp
, 0, 0, 0, NULL
, NULL
);
4403 p2p_buf_update_ie_hdr(resp
, len
);
4409 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
4410 const u8
*sa
, const u8
*data
, size_t len
,
4413 struct p2p_message msg
;
4415 struct wpabuf
*resp
;
4417 struct p2p_group
*group
= NULL
;
4422 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Request");
4424 for (g
= 0; g
< p2p
->num_groups
; g
++) {
4425 if (os_memcmp(da
, p2p_group_get_interface_addr(p2p
->groups
[g
]),
4427 group
= p2p
->groups
[g
];
4431 if (group
== NULL
) {
4432 p2p_dbg(p2p
, "Ignore P2P Presence Request for unknown group "
4433 MACSTR
, MAC2STR(da
));
4437 if (p2p_parse(data
, len
, &msg
) < 0) {
4438 p2p_dbg(p2p
, "Failed to parse P2P Presence Request");
4439 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4444 if (msg
.noa
== NULL
) {
4445 p2p_dbg(p2p
, "No NoA attribute in P2P Presence Request");
4446 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4450 status
= p2p_group_presence_req(group
, sa
, msg
.noa
, msg
.noa_len
);
4453 if (p2p
->cfg
->get_noa
)
4454 noa_len
= p2p
->cfg
->get_noa(p2p
->cfg
->cb_ctx
, da
, noa
,
4458 resp
= p2p_build_presence_resp(status
, noa_len
> 0 ? noa
: NULL
,
4459 noa_len
> 0 ? noa_len
: 0,
4462 p2p_parse_free(&msg
);
4466 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4467 if (p2p_send_action(p2p
, rx_freq
, sa
, da
, da
,
4468 wpabuf_head(resp
), wpabuf_len(resp
), 200) < 0) {
4469 p2p_dbg(p2p
, "Failed to send Action frame");
4475 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
4476 const u8
*sa
, const u8
*data
, size_t len
)
4478 struct p2p_message msg
;
4480 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Response");
4482 if (p2p_parse(data
, len
, &msg
) < 0) {
4483 p2p_dbg(p2p
, "Failed to parse P2P Presence Response");
4487 if (msg
.status
== NULL
|| msg
.noa
== NULL
) {
4488 p2p_dbg(p2p
, "No Status or NoA attribute in P2P Presence Response");
4489 p2p_parse_free(&msg
);
4493 if (p2p
->cfg
->presence_resp
) {
4494 p2p
->cfg
->presence_resp(p2p
->cfg
->cb_ctx
, sa
, *msg
.status
,
4495 msg
.noa
, msg
.noa_len
);
4499 p2p_dbg(p2p
, "P2P Presence Request was rejected: status %u",
4501 p2p_parse_free(&msg
);
4505 p2p_dbg(p2p
, "P2P Presence Request was accepted");
4506 wpa_hexdump(MSG_DEBUG
, "P2P: P2P Presence Response - NoA",
4507 msg
.noa
, msg
.noa_len
);
4508 /* TODO: process NoA */
4509 p2p_parse_free(&msg
);
4513 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
4515 struct p2p_data
*p2p
= eloop_ctx
;
4517 if (p2p
->ext_listen_interval
) {
4518 /* Schedule next extended listen timeout */
4519 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4520 p2p
->ext_listen_interval_usec
,
4521 p2p_ext_listen_timeout
, p2p
, NULL
);
4524 if ((p2p
->cfg
->is_p2p_in_progress
&&
4525 p2p
->cfg
->is_p2p_in_progress(p2p
->cfg
->cb_ctx
)) ||
4526 (p2p
->pending_action_state
== P2P_PENDING_PD
&&
4527 p2p
->pd_retries
> 0)) {
4528 p2p_dbg(p2p
, "Operation in progress - skip Extended Listen timeout (%s)",
4529 p2p_state_txt(p2p
->state
));
4533 if (p2p
->state
== P2P_LISTEN_ONLY
&& p2p
->ext_listen_only
) {
4535 * This should not really happen, but it looks like the Listen
4536 * command may fail is something else (e.g., a scan) was
4537 * running at an inconvenient time. As a workaround, allow new
4538 * Extended Listen operation to be started.
4540 p2p_dbg(p2p
, "Previous Extended Listen operation had not been completed - try again");
4541 p2p
->ext_listen_only
= 0;
4542 p2p_set_state(p2p
, P2P_IDLE
);
4545 if (p2p
->state
!= P2P_IDLE
) {
4546 p2p_dbg(p2p
, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p
->state
));
4550 p2p_dbg(p2p
, "Extended Listen timeout");
4551 p2p
->ext_listen_only
= 1;
4552 if (p2p_listen(p2p
, p2p
->ext_listen_period
) < 0) {
4553 p2p_dbg(p2p
, "Failed to start Listen state for Extended Listen Timing");
4554 p2p
->ext_listen_only
= 0;
4559 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
4560 unsigned int interval
)
4562 if (period
> 65535 || interval
> 65535 || period
> interval
||
4563 (period
== 0 && interval
> 0) || (period
> 0 && interval
== 0)) {
4564 p2p_dbg(p2p
, "Invalid Extended Listen Timing request: period=%u interval=%u",
4569 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
4571 if (interval
== 0) {
4572 p2p_dbg(p2p
, "Disabling Extended Listen Timing");
4573 p2p
->ext_listen_period
= 0;
4574 p2p
->ext_listen_interval
= 0;
4578 p2p_dbg(p2p
, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4580 p2p
->ext_listen_period
= period
;
4581 p2p
->ext_listen_interval
= interval
;
4582 p2p
->ext_listen_interval_sec
= interval
/ 1000;
4583 p2p
->ext_listen_interval_usec
= (interval
% 1000) * 1000;
4585 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4586 p2p
->ext_listen_interval_usec
,
4587 p2p_ext_listen_timeout
, p2p
, NULL
);
4593 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4594 const u8
*ie
, size_t ie_len
)
4596 struct p2p_message msg
;
4598 if (bssid
== NULL
|| ie
== NULL
)
4601 os_memset(&msg
, 0, sizeof(msg
));
4602 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4604 if (msg
.minor_reason_code
== NULL
) {
4605 p2p_parse_free(&msg
);
4609 p2p_dbg(p2p
, "Deauthentication notification BSSID " MACSTR
4610 " reason_code=%u minor_reason_code=%u",
4611 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4613 p2p_parse_free(&msg
);
4617 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4618 const u8
*ie
, size_t ie_len
)
4620 struct p2p_message msg
;
4622 if (bssid
== NULL
|| ie
== NULL
)
4625 os_memset(&msg
, 0, sizeof(msg
));
4626 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4628 if (msg
.minor_reason_code
== NULL
) {
4629 p2p_parse_free(&msg
);
4633 p2p_dbg(p2p
, "Disassociation notification BSSID " MACSTR
4634 " reason_code=%u minor_reason_code=%u",
4635 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4637 p2p_parse_free(&msg
);
4641 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
)
4644 p2p_dbg(p2p
, "Managed P2P Device operations enabled");
4645 p2p
->dev_capab
|= P2P_DEV_CAPAB_INFRA_MANAGED
;
4647 p2p_dbg(p2p
, "Managed P2P Device operations disabled");
4648 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_INFRA_MANAGED
;
4653 int p2p_config_get_random_social(struct p2p_config
*p2p
, u8
*op_class
,
4656 return p2p_channel_random_social(&p2p
->channels
, op_class
, op_channel
);
4660 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
,
4663 if (p2p_channel_to_freq(reg_class
, channel
) < 0)
4667 * Listen channel was set in configuration or set by control interface;
4668 * cannot override it.
4670 if (p2p
->cfg
->channel_forced
&& forced
== 0) {
4672 "Listen channel was previously configured - do not override based on optimization");
4676 p2p_dbg(p2p
, "Set Listen channel: reg_class %u channel %u",
4677 reg_class
, channel
);
4679 if (p2p
->state
== P2P_IDLE
) {
4680 p2p
->cfg
->reg_class
= reg_class
;
4681 p2p
->cfg
->channel
= channel
;
4682 p2p
->cfg
->channel_forced
= forced
;
4684 p2p_dbg(p2p
, "Defer setting listen channel");
4685 p2p
->pending_reg_class
= reg_class
;
4686 p2p
->pending_channel
= channel
;
4687 p2p
->pending_channel_forced
= forced
;
4694 u8
p2p_get_listen_channel(struct p2p_data
*p2p
)
4696 return p2p
->cfg
->channel
;
4700 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
)
4702 p2p_dbg(p2p
, "New SSID postfix: %s", wpa_ssid_txt(postfix
, len
));
4703 if (postfix
== NULL
) {
4704 p2p
->cfg
->ssid_postfix_len
= 0;
4707 if (len
> sizeof(p2p
->cfg
->ssid_postfix
))
4709 os_memcpy(p2p
->cfg
->ssid_postfix
, postfix
, len
);
4710 p2p
->cfg
->ssid_postfix_len
= len
;
4715 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
4718 if (p2p_channel_to_freq(op_reg_class
, op_channel
) < 0)
4721 p2p_dbg(p2p
, "Set Operating channel: reg_class %u channel %u",
4722 op_reg_class
, op_channel
);
4723 p2p
->cfg
->op_reg_class
= op_reg_class
;
4724 p2p
->cfg
->op_channel
= op_channel
;
4725 p2p
->cfg
->cfg_op_channel
= cfg_op_channel
;
4730 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
4731 const struct p2p_channel
*pref_chan
)
4733 struct p2p_channel
*n
;
4736 n
= os_malloc(num_pref_chan
* sizeof(struct p2p_channel
));
4739 os_memcpy(n
, pref_chan
,
4740 num_pref_chan
* sizeof(struct p2p_channel
));
4744 os_free(p2p
->cfg
->pref_chan
);
4745 p2p
->cfg
->pref_chan
= n
;
4746 p2p
->cfg
->num_pref_chan
= num_pref_chan
;
4752 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
4753 const struct wpa_freq_range_list
*list
)
4755 struct wpa_freq_range
*tmp
;
4757 if (list
== NULL
|| list
->num
== 0) {
4758 os_free(p2p
->no_go_freq
.range
);
4759 p2p
->no_go_freq
.range
= NULL
;
4760 p2p
->no_go_freq
.num
= 0;
4764 tmp
= os_calloc(list
->num
, sizeof(struct wpa_freq_range
));
4767 os_memcpy(tmp
, list
->range
, list
->num
* sizeof(struct wpa_freq_range
));
4768 os_free(p2p
->no_go_freq
.range
);
4769 p2p
->no_go_freq
.range
= tmp
;
4770 p2p
->no_go_freq
.num
= list
->num
;
4771 p2p_dbg(p2p
, "Updated no GO chan list");
4777 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
4780 struct p2p_device
*dev
= p2p_get_device(p2p
, dev_addr
);
4781 if (dev
== NULL
|| is_zero_ether_addr(dev
->interface_addr
))
4783 os_memcpy(iface_addr
, dev
->interface_addr
, ETH_ALEN
);
4788 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
4791 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4794 os_memcpy(dev_addr
, dev
->info
.p2p_device_addr
, ETH_ALEN
);
4799 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
)
4801 os_memcpy(p2p
->peer_filter
, addr
, ETH_ALEN
);
4802 if (is_zero_ether_addr(p2p
->peer_filter
))
4803 p2p_dbg(p2p
, "Disable peer filter");
4805 p2p_dbg(p2p
, "Enable peer filter for " MACSTR
,
4806 MAC2STR(p2p
->peer_filter
));
4810 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
)
4812 p2p_dbg(p2p
, "Cross connection %s", enabled
? "enabled" : "disabled");
4813 if (p2p
->cross_connect
== enabled
)
4815 p2p
->cross_connect
= enabled
;
4816 /* TODO: may need to tear down any action group where we are GO(?) */
4820 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
)
4822 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4825 if (dev
->oper_freq
<= 0)
4827 return dev
->oper_freq
;
4831 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
)
4833 p2p_dbg(p2p
, "Intra BSS distribution %s",
4834 enabled
? "enabled" : "disabled");
4835 p2p
->cfg
->p2p_intra_bss
= enabled
;
4839 void p2p_update_channel_list(struct p2p_data
*p2p
,
4840 const struct p2p_channels
*chan
,
4841 const struct p2p_channels
*cli_chan
)
4843 p2p_dbg(p2p
, "Update channel list");
4844 os_memcpy(&p2p
->cfg
->channels
, chan
, sizeof(struct p2p_channels
));
4845 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
4846 os_memcpy(&p2p
->cfg
->cli_channels
, cli_chan
,
4847 sizeof(struct p2p_channels
));
4848 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
4852 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
4853 const u8
*src
, const u8
*bssid
, const u8
*buf
,
4854 size_t len
, unsigned int wait_time
)
4856 if (p2p
->p2p_scan_running
) {
4857 p2p_dbg(p2p
, "Delay Action frame TX until p2p_scan completes");
4858 if (p2p
->after_scan_tx
) {
4859 p2p_dbg(p2p
, "Dropped previous pending Action frame TX");
4860 os_free(p2p
->after_scan_tx
);
4862 p2p
->after_scan_tx
= os_malloc(sizeof(*p2p
->after_scan_tx
) +
4864 if (p2p
->after_scan_tx
== NULL
)
4866 p2p
->after_scan_tx
->freq
= freq
;
4867 os_memcpy(p2p
->after_scan_tx
->dst
, dst
, ETH_ALEN
);
4868 os_memcpy(p2p
->after_scan_tx
->src
, src
, ETH_ALEN
);
4869 os_memcpy(p2p
->after_scan_tx
->bssid
, bssid
, ETH_ALEN
);
4870 p2p
->after_scan_tx
->len
= len
;
4871 p2p
->after_scan_tx
->wait_time
= wait_time
;
4872 os_memcpy(p2p
->after_scan_tx
+ 1, buf
, len
);
4876 return p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
, freq
, dst
, src
, bssid
,
4877 buf
, len
, wait_time
);
4881 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
4884 p2p_dbg(p2p
, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4885 freq_24
, freq_5
, freq_overall
);
4886 p2p
->best_freq_24
= freq_24
;
4887 p2p
->best_freq_5
= freq_5
;
4888 p2p
->best_freq_overall
= freq_overall
;
4892 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
)
4894 p2p_dbg(p2p
, "Own frequency preference: %d MHz", freq
);
4895 p2p
->own_freq_preference
= freq
;
4899 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
)
4901 if (p2p
== NULL
|| p2p
->go_neg_peer
== NULL
)
4903 return p2p
->go_neg_peer
->info
.p2p_device_addr
;
4907 const struct p2p_peer_info
*
4908 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
)
4910 struct p2p_device
*dev
;
4913 dev
= p2p_get_device(p2p
, addr
);
4918 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)
4924 dev
= dl_list_first(&dev
->list
,
4927 if (!dev
|| &dev
->list
== &p2p
->devices
)
4929 } while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
);
4932 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
4935 while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
4936 dev
= dl_list_first(&dev
->list
,
4939 if (!dev
|| &dev
->list
== &p2p
->devices
)
4948 int p2p_in_progress(struct p2p_data
*p2p
)
4952 if (p2p
->state
== P2P_SEARCH
)
4954 return p2p
->state
!= P2P_IDLE
&& p2p
->state
!= P2P_PROVISIONING
;
4958 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
4962 p2p
->go_timeout
= go_timeout
;
4963 p2p
->client_timeout
= client_timeout
;
4968 #ifdef CONFIG_WIFI_DISPLAY
4970 static void p2p_update_wfd_ie_groups(struct p2p_data
*p2p
)
4973 struct p2p_group
*group
;
4975 for (g
= 0; g
< p2p
->num_groups
; g
++) {
4976 group
= p2p
->groups
[g
];
4977 p2p_group_force_beacon_update_ies(group
);
4982 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4984 wpabuf_free(p2p
->wfd_ie_beacon
);
4985 p2p
->wfd_ie_beacon
= ie
;
4986 p2p_update_wfd_ie_groups(p2p
);
4991 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
4993 wpabuf_free(p2p
->wfd_ie_probe_req
);
4994 p2p
->wfd_ie_probe_req
= ie
;
4999 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5001 wpabuf_free(p2p
->wfd_ie_probe_resp
);
5002 p2p
->wfd_ie_probe_resp
= ie
;
5003 p2p_update_wfd_ie_groups(p2p
);
5008 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5010 wpabuf_free(p2p
->wfd_ie_assoc_req
);
5011 p2p
->wfd_ie_assoc_req
= ie
;
5016 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5018 wpabuf_free(p2p
->wfd_ie_invitation
);
5019 p2p
->wfd_ie_invitation
= ie
;
5024 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5026 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
5027 p2p
->wfd_ie_prov_disc_req
= ie
;
5032 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5034 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
5035 p2p
->wfd_ie_prov_disc_resp
= ie
;
5040 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5042 wpabuf_free(p2p
->wfd_ie_go_neg
);
5043 p2p
->wfd_ie_go_neg
= ie
;
5048 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5050 wpabuf_free(p2p
->wfd_dev_info
);
5052 p2p
->wfd_dev_info
= wpabuf_dup(elem
);
5053 if (p2p
->wfd_dev_info
== NULL
)
5056 p2p
->wfd_dev_info
= NULL
;
5062 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5064 wpabuf_free(p2p
->wfd_assoc_bssid
);
5066 p2p
->wfd_assoc_bssid
= wpabuf_dup(elem
);
5067 if (p2p
->wfd_assoc_bssid
== NULL
)
5070 p2p
->wfd_assoc_bssid
= NULL
;
5076 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
5077 const struct wpabuf
*elem
)
5079 wpabuf_free(p2p
->wfd_coupled_sink_info
);
5081 p2p
->wfd_coupled_sink_info
= wpabuf_dup(elem
);
5082 if (p2p
->wfd_coupled_sink_info
== NULL
)
5085 p2p
->wfd_coupled_sink_info
= NULL
;
5090 #endif /* CONFIG_WIFI_DISPLAY */
5093 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
5096 if (min_disc_int
> max_disc_int
|| min_disc_int
< 0 || max_disc_int
< 0)
5099 p2p
->min_disc_int
= min_disc_int
;
5100 p2p
->max_disc_int
= max_disc_int
;
5101 p2p
->max_disc_tu
= max_disc_tu
;
5102 p2p_dbg(p2p
, "Set discoverable interval: min=%d max=%d max_tu=%d",
5103 min_disc_int
, max_disc_int
, max_disc_tu
);
5109 void p2p_dbg(struct p2p_data
*p2p
, const char *fmt
, ...)
5114 if (!p2p
->cfg
->debug_print
)
5118 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5119 buf
[sizeof(buf
) - 1] = '\0';
5121 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_DEBUG
, buf
);
5125 void p2p_info(struct p2p_data
*p2p
, const char *fmt
, ...)
5130 if (!p2p
->cfg
->debug_print
)
5134 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5135 buf
[sizeof(buf
) - 1] = '\0';
5137 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_INFO
, buf
);
5141 void p2p_err(struct p2p_data
*p2p
, const char *fmt
, ...)
5146 if (!p2p
->cfg
->debug_print
)
5150 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5151 buf
[sizeof(buf
) - 1] = '\0';
5153 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_ERROR
, buf
);
5157 void p2p_loop_on_known_peers(struct p2p_data
*p2p
,
5158 void (*peer_callback
)(struct p2p_peer_info
*peer
,
5162 struct p2p_device
*dev
, *n
;
5164 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
5165 peer_callback(&dev
->info
, user_data
);
5170 #ifdef CONFIG_WPS_NFC
5172 static struct wpabuf
* p2p_build_nfc_handover(struct p2p_data
*p2p
,
5174 const u8
*go_dev_addr
,
5175 const u8
*ssid
, size_t ssid_len
)
5178 u8 op_class
, channel
;
5179 enum p2p_role_indication role
= P2P_DEVICE_NOT_IN_GROUP
;
5181 buf
= wpabuf_alloc(1000);
5185 op_class
= p2p
->cfg
->reg_class
;
5186 channel
= p2p
->cfg
->channel
;
5188 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
5189 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
5190 p2p_buf_add_device_info(buf
, p2p
, NULL
);
5192 if (p2p
->num_groups
> 0) {
5193 int freq
= p2p_group_get_freq(p2p
->groups
[0]);
5194 role
= P2P_GO_IN_A_GROUP
;
5195 if (p2p_freq_to_channel(freq
, &op_class
, &channel
) < 0) {
5197 "Unknown GO operating frequency %d MHz for NFC handover",
5202 } else if (client_freq
> 0) {
5203 role
= P2P_CLIENT_IN_A_GROUP
;
5204 if (p2p_freq_to_channel(client_freq
, &op_class
, &channel
) < 0) {
5206 "Unknown client operating frequency %d MHz for NFC handover",
5213 p2p_buf_add_oob_go_neg_channel(buf
, p2p
->cfg
->country
, op_class
,
5216 if (p2p
->num_groups
> 0) {
5217 /* Limit number of clients to avoid very long message */
5218 p2p_buf_add_group_info(p2p
->groups
[0], buf
, 5);
5219 p2p_group_buf_add_id(p2p
->groups
[0], buf
);
5220 } else if (client_freq
> 0 &&
5221 go_dev_addr
&& !is_zero_ether_addr(go_dev_addr
) &&
5222 ssid
&& ssid_len
> 0) {
5224 * Add the optional P2P Group ID to indicate in which group this
5225 * device is a P2P Client.
5227 p2p_buf_add_group_id(buf
, go_dev_addr
, ssid
, ssid_len
);
5234 struct wpabuf
* p2p_build_nfc_handover_req(struct p2p_data
*p2p
,
5236 const u8
*go_dev_addr
,
5237 const u8
*ssid
, size_t ssid_len
)
5239 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5244 struct wpabuf
* p2p_build_nfc_handover_sel(struct p2p_data
*p2p
,
5246 const u8
*go_dev_addr
,
5247 const u8
*ssid
, size_t ssid_len
)
5249 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5254 int p2p_process_nfc_connection_handover(struct p2p_data
*p2p
,
5255 struct p2p_nfc_params
*params
)
5257 struct p2p_message msg
;
5258 struct p2p_device
*dev
;
5259 const u8
*p2p_dev_addr
;
5261 enum p2p_role_indication role
;
5263 params
->next_step
= NO_ACTION
;
5265 if (p2p_parse_ies_separate(params
->wsc_attr
, params
->wsc_len
,
5266 params
->p2p_attr
, params
->p2p_len
, &msg
)) {
5267 p2p_dbg(p2p
, "Failed to parse WSC/P2P attributes from NFC");
5268 p2p_parse_free(&msg
);
5272 if (msg
.p2p_device_addr
)
5273 p2p_dev_addr
= msg
.p2p_device_addr
;
5274 else if (msg
.device_id
)
5275 p2p_dev_addr
= msg
.device_id
;
5277 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
5278 p2p_parse_free(&msg
);
5282 if (msg
.oob_dev_password
) {
5283 os_memcpy(params
->oob_dev_pw
, msg
.oob_dev_password
,
5284 msg
.oob_dev_password_len
);
5285 params
->oob_dev_pw_len
= msg
.oob_dev_password_len
;
5288 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
5290 p2p_parse_free(&msg
);
5294 params
->peer
= &dev
->info
;
5296 os_get_reltime(&dev
->last_seen
);
5297 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
5298 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
5300 if (!msg
.oob_go_neg_channel
) {
5301 p2p_dbg(p2p
, "OOB GO Negotiation Channel attribute not included");
5302 p2p_parse_free(&msg
);
5306 if (msg
.oob_go_neg_channel
[3] == 0 &&
5307 msg
.oob_go_neg_channel
[4] == 0)
5310 freq
= p2p_channel_to_freq(msg
.oob_go_neg_channel
[3],
5311 msg
.oob_go_neg_channel
[4]);
5313 p2p_dbg(p2p
, "Unknown peer OOB GO Neg channel");
5314 p2p_parse_free(&msg
);
5317 role
= msg
.oob_go_neg_channel
[5];
5319 if (role
== P2P_GO_IN_A_GROUP
) {
5320 p2p_dbg(p2p
, "Peer OOB GO operating channel: %u MHz", freq
);
5321 params
->go_freq
= freq
;
5322 } else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5323 p2p_dbg(p2p
, "Peer (client) OOB GO operating channel: %u MHz",
5325 params
->go_freq
= freq
;
5327 p2p_dbg(p2p
, "Peer OOB GO Neg channel: %u MHz", freq
);
5328 dev
->oob_go_neg_freq
= freq
;
5330 if (!params
->sel
&& role
!= P2P_GO_IN_A_GROUP
) {
5331 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
,
5334 p2p_dbg(p2p
, "Own listen channel not known");
5335 p2p_parse_free(&msg
);
5338 p2p_dbg(p2p
, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq
);
5339 dev
->oob_go_neg_freq
= freq
;
5343 os_memcpy(params
->go_dev_addr
, msg
.group_id
, ETH_ALEN
);
5344 params
->go_ssid_len
= msg
.group_id_len
- ETH_ALEN
;
5345 os_memcpy(params
->go_ssid
, msg
.group_id
+ ETH_ALEN
,
5346 params
->go_ssid_len
);
5349 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
5350 p2p_dbg(p2p
, "Do not report rejected device");
5351 p2p_parse_free(&msg
);
5355 if (!(dev
->flags
& P2P_DEV_REPORTED
)) {
5356 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, p2p_dev_addr
, &dev
->info
,
5357 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
5358 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
5360 p2p_parse_free(&msg
);
5362 if (role
== P2P_GO_IN_A_GROUP
&& p2p
->num_groups
> 0)
5363 params
->next_step
= BOTH_GO
;
5364 else if (role
== P2P_GO_IN_A_GROUP
)
5365 params
->next_step
= JOIN_GROUP
;
5366 else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5367 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
5368 params
->next_step
= PEER_CLIENT
;
5369 } else if (p2p
->num_groups
> 0)
5370 params
->next_step
= AUTH_JOIN
;
5371 else if (params
->sel
)
5372 params
->next_step
= INIT_GO_NEG
;
5374 params
->next_step
= RESP_GO_NEG
;
5380 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data
*p2p
, u16 dev_pw_id
,
5382 const u8
*own_interface_addr
)
5385 p2p
->authorized_oob_dev_pw_id
= dev_pw_id
;
5386 if (dev_pw_id
== 0) {
5387 p2p_dbg(p2p
, "NFC OOB Password unauthorized for static handover");
5391 p2p_dbg(p2p
, "NFC OOB Password (id=%u) authorized for static handover",
5394 p2p
->go_intent
= go_intent
;
5395 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
5398 #endif /* CONFIG_WPS_NFC */
5401 int p2p_set_passphrase_len(struct p2p_data
*p2p
, unsigned int len
)
5403 if (len
< 8 || len
> 63)
5405 p2p
->cfg
->passphrase_len
= len
;
5410 void p2p_set_vendor_elems(struct p2p_data
*p2p
, struct wpabuf
**vendor_elem
)
5412 p2p
->vendor_elem
= vendor_elem
;
5416 void p2p_go_neg_wait_timeout(void *eloop_ctx
, void *timeout_ctx
)
5418 struct p2p_data
*p2p
= eloop_ctx
;
5421 "Timeout on waiting peer to become ready for GO Negotiation");
5422 p2p_go_neg_failed(p2p
, -1);
5426 void p2p_set_own_pref_freq_list(struct p2p_data
*p2p
,
5427 const unsigned int *pref_freq_list
,
5432 if (size
> P2P_MAX_PREF_CHANNELS
)
5433 size
= P2P_MAX_PREF_CHANNELS
;
5434 p2p
->num_pref_freq
= size
;
5435 for (i
= 0; i
< size
; i
++) {
5436 p2p
->pref_freq_list
[i
] = pref_freq_list
[i
];
5437 p2p_dbg(p2p
, "Own preferred frequency list[%u]=%u MHz",
5438 i
, p2p
->pref_freq_list
[i
]);